CN210695314U - a waterer - Google Patents

Abstract

The utility model relates to a watering device, which comprises a casing and a water pump located in the casing. The front end of the water pump is provided with a water inlet, a water outlet and a water outlet cavity located in the water pump to communicate the water inlet and the water outlet. The front end of the water pump is provided with a communication part that communicates with the outside; the watering device also includes an end cover assembly that is covered on the outer periphery of the communication part, and the end cover assembly is provided with a water outlet cavity that can communicate with the outside through the communication part. The flow channel is kept normally closed and opened when the pressure in the water outlet cavity is lower than the atmospheric pressure, so as to eliminate the siphon effect; at the same time, the waterer is provided with a water pressure sensor to transmit the water pressure signal to the The circuit board can adjust the water pressure to stabilize the water flow and improve the watering quality. In addition, a pressure relief valve is provided to avoid the risk of damage to the pump, pipeline and sensor and the risk of the interface tripping due to the high-pressure water flow at the moment of operation. .

Description

a waterer

technical field

The utility model relates to the technical field of gardening tools, in particular to a watering device.

Background technique

Most of the traditional waterers use manual methods to water the nursery, which takes a lot of time and energy. For this reason, there are automatic watering devices on the market. The automatic watering device includes a built-in water pump. The water in the water storage bucket flows to the nursery through the water pump inlet, the water pump cavity and the water outlet of the water pump, saving time and effort.

However, when the existing automatic waterer is in use, the water inlet pipe of the waterer needs to extend into the water storage bucket. If the watering position is lower than the liquid level of the water storage bucket, in this case, when the automatic waterer stops working, due to the The gravity effect of the water in the water outlet pipe of the water device will cause a siphon effect. If it is not handled in time, the water in the water outlet pipe will continue to flow until the water in the water storage bucket runs out, which is easy to cause excessive watering and waste water resources.

At the same time, the existing automatic watering device cannot control and adjust the water pressure in the water pipe, which easily causes uneven water flow of the water outlet pipe and affects the watering quality.

In addition, the existing waterer will form a high-pressure water flow at the moment of starting to work, and the high-pressure water flow will impact the water pump, damage the parts of the water pump, and affect the service life. The number of flowers and plants that can be watered is small, which cannot meet the needs of users.

Utility model content

In view of the above problems, the purpose of the present invention is to provide a watering device capable of eliminating the siphon effect and having a large watering amount.

Another object of the present invention is to provide a watering device that can adjust the water pressure in the water pump to stabilize the water pressure at the water outlet.

Another object of the present utility model is to provide a watering device which can eliminate the damage of components caused by the instantaneous high pressure generated by the internal water flow when the water pump is started.

In order to achieve the above purpose, the technical scheme of the present utility model is: a watering device, comprising a casing and a water pump located in the casing, the front end of the water pump is provided with a water inlet, a water outlet, and is located in the water pump to make the water inlet and outlet The water outlet cavity connected with the nozzle is characterized in that:

The front end of the water pump is provided with a communication part that communicates with the outside; the watering device also includes an end cover assembly that is covered on the outer circumference of the communication part, and the end cover assembly is provided with a water outlet cavity through the communication part to communicate with the outside. A flow channel communicated with the outside, the flow channel is kept in a normally closed state and opened when the pressure in the water outlet cavity is lower than the atmospheric pressure.

Further, the end cover assembly includes an air intake guide cover that is closed on the outer periphery of the communication portion and is closed and connected to the front end of the water pump, the air intake guide cover is provided with an air intake hole to form a part of the flow channel;

The end face of the air intake guide cover facing the water pump is provided with an air intake diaphragm that is fitted with the air intake guide cover to close the air intake hole, and the air intake diaphragm faces when the pressure in the water outlet cavity is lower than the atmospheric pressure. The direction of the water pump is deformed to open the air intake.

Further, the watering device further includes a hose and a circuit board located in the casing and provided with a water pressure sensor on it, and the air intake guide cover is provided with a nozzle communicating with the inner cavity of the air intake guide cover, so The nozzle is connected to one end of the hose, the water pressure sensor is connected to the other end of the hose, and the water pressure sensor transmits the detected water pressure signal to the circuit board to adjust the rotational speed of the water pump.

Preferably, the front end of the water pump is concave to form a concave portion, the bottom of the concave portion is provided with a pressure relief port that communicates with the water outlet cavity, and the air intake guide cover is covered on the concave portion and is closed and connected to the concave portion;

The end cover assembly also includes a pressure relief component disposed between the air intake guide cover and the recessed portion and sealingly matched with the recessed portion. The pressure relief component blocks and seals the pressure relief port in a normal state, and the water pump starts and releases the pressure immediately. The port is separated, and the pressure relief component is enclosed with the bottom of the depression to form a pressure relief cavity, and the pressure relief cavity is connected with the water inlet;

The end face of the pressure relief member facing the air intake guide cover is provided with a flow groove for water supply and air circulation, and the concave portion is provided with an air inlet on the outside of the pressure relief member to form the communication portion;

The flow channel also includes a sub-flow channel formed by communicating with a first gap between the inner wall of the intake guide cover and the outer wall of the pressure relief part and a second gap between the outer wall of the pressure relief part and the inner wall of the recess, the sub-flow channel It is communicated with the air inlet and the air inlet respectively.

Preferably, the pressure relief component includes a pressure relief cover sealingly connected to the inner wall of the concave portion, a compression spring with one end fixedly connected to the inner wall of the pressure relief cover close to the pressure relief port, and a compression spring fixedly sleeved in the other end of the compression spring. A pressure relief valve, the pressure relief valve blocks the pressure relief port in a normal state, and the flow groove is arranged on the pressure relief cover.

Further, the end cover assembly also includes a drainage cover disposed at the front end of the air intake guide cover and leaving a gap between the air intake guide cover and the air intake guide cover. A water receiving box that is detachably connected to the housing. The outside of the water receiving box is provided with an overflow groove that is convenient for overflowing after the water receiving box is filled. External air can be guided through the overflow groove, the drainage pipe, the drainage cover and the air intake. into the air intake hole through the gap between the covers.

Further, the watering device also includes a front shock absorbing ring sleeved on the outside of the end cover assembly and a rear shock absorbing ring sleeved on the rear end of the water pump. The inner walls of the front shock absorbing ring and the rear shock absorbing ring A plurality of shock-absorbing strips are arranged at intervals; the housing is provided with an arc-shaped fixing seat matched with the front shock-absorbing ring and the rear shock-absorbing ring at the corresponding positions of the front shock-absorbing ring and the rear shock-absorbing ring.

Further, the housing is recessed inward at the corresponding positions of the water inlet and the water outlet, the water inlet and the water outlet protrude from the recessed position of the housing and the free ends do not exceed the plane where the corresponding side of the housing is located.

Further, the watering device further includes a bracket detachably connected to the bottom of the housing, the bracket has two oppositely arranged clamping arms, and the top surface of the bracket forms a first extension toward the outer side of the corresponding clamping arms, respectively. part and a second extension;

The top surface of the first extension part is provided with an upward convex column, and the upper end of the convex column is provided with clamping blocks on both sides along the direction of the clamping arm; the lower side of the second extension part is provided with a U-shaped elastic piece, and the free end of the U-shaped elastic piece is provided with a backtick;

The bottom of the casing is provided with a strip-shaped first fixing hole into which the protruding post and the clamping block can be inserted, and a second fixing hole in which the barb is inserted, and the width of the first fixing hole is suitable for the protruding post to rotate in it. And it is smaller than the distance between the ends of the two clamping blocks, so that the clamping blocks can be fixed after rotating the convex column.

Further, the protruding post is cylindrical, the diameter of the protruding post is larger than the width of the clamping block, and the first fixing hole includes a circular hole and a square hole located on both sides of the circular hole and communicating with the circular hole. , the size of the circular hole and the square hole are adapted to the convex column and the clamping block respectively, and the convex column is limited in the circular hole after being rotated by the rotating bracket, and the convex column and the clamping block are connected to the first fixing hole through the convex column and the clamping block. , The U-shaped shrapnel and the barb are matched with the second fixing hole to realize the relative fixing of the bracket and the shell.

Compared with the prior art, the advantages of the present utility model are:

A flow channel and an air intake diaphragm matched with the flow channel are arranged on the end cover assembly. When the waterer stops working and the watering position is lower than the liquid level of the water storage bucket, a negative pressure is formed in the water outlet, and the pressure in the water outlet cavity is less than Due to the characteristics of atmospheric pressure, the air intake diaphragm will be deformed towards the direction of the water pump, opening the air flow channel, thereby eliminating the negative pressure in the water outlet cavity, solving the siphon effect, improving the working performance of the waterer, and saving water;

By setting the water pressure sensor connected to the circuit board, when the water pressure of the water outlet cavity changes, the circuit board controls the water pump to change the speed through the detection of the water pressure sensor, so as to keep the water pressure in the water outlet chamber relatively stable, which improves the water pressure of the watering device. watering quality;

The setting of the pressure relief part can well solve the problem that the water flow enters the water pump to form an instantaneous high pressure when the watering device is working. The impact damage caused by the components improves the equipment performance of the waterer, prolongs the service life, and at the same time prevents the pipe joint from collapsing due to excessive pressure, causing a large outflow of irrigation water;

The setting of the drainage cover and the water receiving box can accommodate a little water from the air inlet, so as to prevent the water flow from entering the waterer and causing corrosion and damage to the parts, and also avoid the indoor and outdoor ground caused by the water from the waterer. sense of use;

The setting of the detachable bracket on the lower side of the shell can fix the waterer on the water storage bucket without having to find another location for installation. .

Description of drawings

FIG. 1 is a schematic structural diagram of a flower watering device according to an embodiment of the present application.

FIG. 2 is a schematic top view of the structure of FIG. 1 .

FIG. 3 is a schematic diagram of the rear view of FIG. 1 .

FIG. 4 is a left-side structural schematic diagram of FIG. 1 .

FIG. 5 is a schematic diagram of the explosion structure of FIG. 1 .

FIG. 6 is a schematic diagram of an exploded structure of the front end of the water pump and related components in FIG. 5 .

Figure 7 is a schematic diagram of the siphon effect produced by the flower watering device.

FIG. 8 is a cross-sectional view taken along line A-A in FIG. 2 .

FIG. 9 is a sectional view taken along line B-B in FIG. 3 .

FIG. 10 is a partial display view of the C-C sectional view in FIG. 4 .

FIG. 11 is a schematic structural diagram of exploding the water receiving box and the shell of the flower watering device.

Figure 12 is a schematic diagram of the structure of the water receiving box.

Figure 13 is a schematic cross-sectional structure diagram of the flower watering device.

FIG. 14 is a schematic structural diagram of the section Q in FIG. 9 when the pressure relief valve is closed and opened.

Figure 15 is a schematic structural diagram of exploding the front shock-absorbing ring and the rear shock-absorbing ring in the flower watering device.

FIG. 16 is a schematic cross-sectional view of the arrangement of the front shock absorbing ring and the rear shock absorbing ring.

Fig. 17 is a schematic diagram of the structure of the flower watering device fixed on the water storage bucket through the bracket.

Figure 18 is a schematic diagram of the structure of the stent.

FIG. 19 is a schematic diagram of the first fixing hole and the second fixing hole at the bottom of the housing.

Fig. 20 is the first initial state diagram when the bracket and the housing are installed.

FIG. 21 is a completed state diagram after the bracket and the casing are installed.

FIG. 22 is a schematic top view of the initial state and the completed state when the bracket and the housing are installed.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but should not be construed as a limitation of the present invention.

Figures 1 to 6 and Figures 8 to 10 are schematic views of the structure of the embodiment of the present invention. The watering device includes a casing 100 and a water pump 200 located in the casing 100. Water inlets 201 are provided on both sides of the front end of the water pump 200. It is connected with the water outlet 202, the water inlet 201 and the water outlet 202 through the water outlet cavity 203 located in the water pump 200 through which the water flow passes. The arrow in FIG. 9 shows the path of the water flow in the water pump. The waterer also includes an end cap assembly that is closed on the outer periphery of the communicating portion. The end cap assembly is provided with a flow channel that enables the water outlet cavity to communicate with the outside atmosphere through the communicating portion. The flow channel is kept closed under normal conditions. When the pressure in the water outlet cavity is lower than the external atmospheric pressure, the flow channel is opened.

Specifically, the end cover assembly includes an air intake guide cover 300 that is covered on the outer periphery of the communication portion. The air intake guide cover 300 and the front end of the water pump 200 are sealed by a first O-ring 301. The air intake guide cover 300 is provided with a first O-ring 301. The air inlet hole 302, the air flow channel includes a channel formed by the air inlet hole 302 for the outside air to enter the water outlet cavity 203; an installation hole 303 is provided in the middle of the air inlet guide cover 300, and an air inlet diaphragm 304 is assembled in the installation hole 303, The intake diaphragm 304 is attached to the intake guide cover 300 on the side facing the water pump 100 to close the intake hole 302 .

Under normal conditions, that is, when the waterer is not in operation, the pressure in the water outlet cavity 203 is equal to the atmospheric pressure, and the air intake diaphragm 304 is in contact with the corresponding side of the air intake guide cover 300, so that the air intake hole 302 is in a closed state; When the water device is in operation, since the water pressure inside the water outlet cavity 203 is greater than the external atmospheric pressure, the air intake diaphragm 304 is kept in contact with the air intake guide cover 300, so that the air intake hole 302 is kept closed, and the water in the water outlet cavity 203 is prevented from flowing out. The air intake hole 302 flows out; when the waterer stops working, if the watering position of the end of the water outlet pipe is lower than the liquid level of the water storage bucket, the water in the water outlet pipe will continue to flow downward under the action of gravity, so that the water outlet Negative pressure is formed in 202. If the negative pressure is not eliminated at this time, the water in the water storage bucket will continue to be sucked up due to the siphon effect, causing the pump to stop water. This application solves this problem very well. As shown in Figure 7.

When the watering device stops working, due to the action of gravity, the water in the water outlet pipe will flow down, resulting in negative pressure in the water outlet pipe, so that the pressure in the water outlet cavity 203 is lower than the external atmospheric pressure, and the air intake diaphragm 304 is in the Under the action of atmospheric pressure, it will deform in the direction of the water outlet cavity 203, as shown in FIG. 10, so that the closed state of the air intake diaphragm 304 to the air intake hole 302 becomes an open state, and the outside air enters the water outlet cavity 203, so that the The negative pressure in the water outlet 202 and the water outlet cavity 203 disappears, the water in the water outlet pipe can all flow out, and the water in the water storage bucket will not continue to be sucked up, thereby eliminating the siphon effect. When all the water in the water outlet pipe flows out, the pressure in the water outlet cavity 203 is the same as the external atmospheric pressure, and the air intake diaphragm 304 recovers its deformation and closes the air intake hole 302 .

Under normal circumstances, since the pressure in the water outlet cavity 203 is greater than the external atmospheric pressure when the watering device is in operation, the air intake diaphragm 304 will closely adhere to the air intake guide cover 300 under the action of the water pressure in the water outlet cavity 203 In combination, the air intake holes 302 are closed, so that water cannot flow out from the air intake holes 302 and outside air cannot enter from the air intake holes 302 . However, when the air intake diaphragm 304 cannot be closely attached to the air intake guide cover 300 due to water pressure jitter and impurities in the water, a small amount of water will flow out from the air intake hole 302. The arrows in FIG. 8 show the flow of a small amount of water. path. In order to prevent a small amount of water flowing out of the air intake hole 302 from flowing into the waterer and causing rust damage to the parts, a drainage cover 400 is also connected to the front end of the air intake guide cover 300, and a drainage tube 401 is formed on the lower side of the drainage cover 400 to drain the water. A water receiving box 402 for collecting the water flowing down the drainage pipe 401 is provided below the pipe 401 . After a period of use, the water receiving box 402 is disassembled and the water is poured out. In order to prevent people from forgetting to pour out the water in the water receiving box 402 and causing it to flow into the waterer during long-term use, an overflow groove 4021 is provided on the outside of the water receiving box 402 to facilitate the overflow after the water receiving box 402 is full. The water in the water receiving box 402 flows to the outside of the flower watering device through the overflow groove 4021, as shown in FIG. 11 and FIG. 12 .

In the case of providing a drainage cover, the above-mentioned flow channel includes a channel formed by the drainage pipe 401 , the drainage cover 400 , and the air inlet hole 302 to circulate the water supply air.

In this embodiment, the drainage cover 400 is connected and fixed with the front end of the water pump 200 by screws, the drainage cover 400 is provided with two positioning holes 403, and the intake guide cover 300 is provided with two positioning posts 305, which are respectively inserted into the two positioning posts 305. The two positioning holes 403 realize the relative fixation of the drainage cover 400 and the intake guide cover 300 , and the drainage cover 400 and the intake guide cover 300 are sealed by an O-ring. Through the tightening action of the screws passing through the drainage cover 400, the air intake guide cover 300 placed between the drainage cover 400 and the front end of the water pump 200 is tightly fitted with the front end of the water pump 200, and at the same time, the gap between the drainage cover 400 and the air intake guide cover 300 is tightly fitted. work close with.

As a further improvement, as shown in FIG. 13 , a side edge of the air intake guide cover 300 is provided with a through hole, a nozzle 306 is connected outside the through hole, the nozzle 306 is connected to a hose 307, and the hose 307 is connected to a detection The water pressure sensor 308 of the water pressure in the water outlet cavity is welded and fixed on the circuit board 310 inside the waterer. The water pressure sensor 308 transmits the detected water pressure signal to the control unit on the circuit board 310, in order to To prevent leakage at both ends of the hose 307 , both ends of the hose 307 are held tightly by the hoop 309 to connect the nozzle 306 of the intake guide cover 300 to the nozzle of the water pressure sensor 308 . During use, if the water pressure is too high, the control unit sends an instruction to reduce the speed of the water pump 200; if the water pressure is too low, the control unit sends an instruction to increase the speed of the water pump 200, and when the waterer starts to run, due to the water pressure sensor 308 detects that there is no water, and the control unit will adjust the pump 200 to run at maximum power to quickly fill the water. In this way, the water pressure of the water outlet 202 can be kept stable through program setting, so that the flow rate of the water outlet pipe can be kept stable and the watering quality can be improved. Of course, the user can also select the watering time according to the needs of the growth of flowers and trees, and the control unit controls the running time of the water pump 200 according to the selected watering time, so as to increase the single watering amount and realize the purpose of large watering amount.

As a further improvement, the front end of the water pump 200 is concave to form a concave portion, the bottom of the concave portion is provided with a pressure relief port 204 that communicates with the water outlet cavity 203, and the air intake guide cover 300 is covered on the concave portion and is closed and connected to the concave portion; The assembly also includes a pressure relief component disposed between the air intake guide cover 300 and the recessed portion and sealingly matched with the recessed portion. The pressure relief component blocks the sealed pressure relief port 204 in a normal state, and the water pump 200 is separated from the pressure relief port 204 at the moment of startup, and the relief port 204 is released. The pressure relief member is enclosed with the bottom of the depression to form a pressure relief cavity 205, and the pressure relief chamber 205 is connected to the water inlet 201; the end face of the pressure relief member facing the air inlet guide cover 300 is provided with a circulation groove 603 for water supply and air circulation, and the depression portion is in the outlet. An air inlet 209 is provided on the outside of the pressure member to form the communication portion; the above-mentioned flow passage also includes a first gap C located between the inner wall of the air intake guide cover 300 and the outer wall of the pressure relief member, and a first gap C located between the outer wall of the pressure relief member and the inner wall of the concave portion. The second gap D between them communicates with the formed sub-flow channel, and the sub-flow channel communicates with the air inlet 209 and the air inlet 302 respectively. The arrow in FIG. 10 shows the path of the outside air entering the water outlet cavity. Specifically, the pressure relief component includes a pressure relief cover 600 sealingly connected to the inner wall of the recess, a compression spring 601 having one end fixedly connected to the inner wall of the pressure relief cover 600 close to the pressure relief port 204 , and a compression spring 601 fixedly sleeved on the compression spring 601 The pressure relief valve 602 in the other end, when the pressure relief valve 602 is normal, blocks the pressure relief port 204 , and the flow groove 603 is provided on the pressure relief cover 600 . The assembling and positioning of the pressure relief cover 600 and the air intake guide cover 300 is also achieved by the matching of the positioning holes 403 and the positioning posts 305, as shown in FIG. 6 and FIG. 9 .

After the waterer is not working or enters stable operation, the elastic force of the compression spring 601 is greater than the water pressure in the water outlet cavity 203, so that the pressure relief valve 602 closes the pressure relief port 204, as shown in FIG. 14; when the waterer starts to work In an instant, because the water pressure sensor 308 has not yet detected the water flow, the water pump 200 will run at the maximum power, so that the water pressure in the water outlet cavity 203 will suddenly increase, even exceeding the safe value. Controlling the water pressure will affect or even damage the water pressure sensor 308 , sealing devices, etc., and this problem can be well solved by setting the pressure relief valve 602 . By setting the pressure relief valve 602, when the waterer starts to work, due to the high pressure suddenly formed in the water outlet cavity 203, the pressure of the water pressure in the water outlet cavity 203 to the pressure relief valve 602 will be greater than the elastic force of the compression spring 601, The compression spring 601 is further contracted, the pressure relief port 204 is opened, the high-pressure water flow in the water outlet cavity 203 will enter the pressure relief chamber 205, and the pressure relief chamber 205 is connected to the water inlet 201, so that the water flowing out of the pressure relief chamber 205 will Enter the water inlet 201, thereby reducing the instantaneous high water pressure in the water outlet cavity 203 when the waterer starts to work, so as to avoid damage to the water pump. The elastic restoring force of 601 is greater than the pressure generated by the water flow in the water outlet cavity 203, so that the pressure relief valve 602 will move towards the pressure relief port 204 again, that is, the pressure relief port 204 will be closed again, so as to ensure the normal progress of subsequent irrigation operations. .

In this embodiment, the front and rear ends of the water pump 200 are respectively sleeved with a front shock-absorbing ring 206 and a rear shock-absorbing ring 207, and a plurality of shock-absorbing bars 208 are provided on the inner walls of the front shock-absorbing ring 206 and the rear shock-absorbing ring 207 to reduce the The contact area with the water pump 200, the housing 100 is provided with an arc-shaped fixing seat 101 matching the front shock-absorbing ring 206 and the rear shock-absorbing ring 207 at the corresponding positions of the front shock-absorbing ring 206 and the rear shock-absorbing ring 207, as shown in FIG. 15 As shown in FIG. 16 , a certain space is left between other positions of the water pump 200 and the housing 100 , and the front shock absorbing ring 206 and the rear shock absorbing ring 207 are made of rubber materials. By adopting this design, the waterer can have a good shock absorption effect and reduce the use noise.

In this embodiment, the housing 100 is recessed inward at the corresponding positions of the water inlet 201 and the water outlet 202, the water inlet 201 and the water outlet 202 protrude from the recessed position of the housing 100, and the free ends of the water inlet 201 and the water outlet 202 are not Exceeding the plane of the wall corresponding to the casing 100, that is, the water inlet 201 and the water outlet 202 are half hidden at the front end of the casing 100, so that the water inlet 201 and the water outlet 202 can be prevented from being damaged due to collision; The water inlet 201 and the water outlet 202 are connected with each other to prevent the operator from being cut. The edges of the casing 100 at the concave position are designed with rounded corners.

In this embodiment, as shown in FIGS. 17 to 22 , in order to facilitate the installation and setting of the watering device, the watering device further includes a bracket 500 detachably connected to the bottom of the housing 100 , and the bracket 500 has two brackets for clamping the water storage bucket. The clamping arm 501 of the wall, one of the clamping arms 501 is provided with a screw 502, and the screw 502 is provided with a nut 503. The nut 503 is fixedly connected with the outer side of the corresponding clamping arm 501. Specifically, the clamping arm 501 The outer side is formed with two oppositely arranged clamping platforms 504, the nut 503 is arranged between the clamping platform 504 and the outer side of the clamping arm 501, and the end of the screw rod 502 located between the two clamping arms 501 is provided with a convenient connection with the wall of the water storage bucket. The opposing turntables 505 correspond to the clamping arms 501 bent outward at the turntables 505 to form a space for accommodating the turntables. One end of the screw rod 502 outside the clamping arms 501 is provided with a rotating handle 506 for easy rotation. During use, first put the nut 503 into the clamping table 504 , pass the screw rod 502 through the nut 503 and the corresponding clamping arm 501 , and then force the turntable 505 into the corresponding end of the screw rod 502 . The two clamping arms 501 are clamped into the two sides of the water storage bucket, and the rotary handle 506 is rotated to make the turntable 505 abut against the water storage bucket wall, so that the bracket 500 is fixed relative to the water storage bucket.

In this embodiment, a first extension portion 507 and a second extension portion 508 are respectively formed on the top surface of the bracket 500 toward the outer side of the corresponding clamping arm 501 , the top surface of the first extension portion 507 is formed with an upward convex column 509 , and the upper end of the convex column 509 is formed Blocks 510 are provided on both sides along the direction of the clamping arm 501 ; a U-shaped elastic piece 511 is provided on the lower side of the first extension part 507 , and the free end of the U-shaped elastic piece 511 is provided with a barb 512 ; the bottom of the housing 100 is provided with a through-shell The bottom of the body 100 is a first fixing hole 513 that can be inserted into the protruding post 509 and the clamping block 510 in a strip shape, and a second fixing hole 514 that can be inserted into the barb 512. The width of the first fixing hole 513 is suitable for the protruding post 509 It rotates inside and the width is smaller than the distance between the ends of the two clamping blocks 510 , so that the clamping block 510 is fixed after rotating the protruding post 509 .

As a preference, the protruding post 509 is cylindrical, the diameter of the protruding post 509 is larger than the width of the clamping block 510 , and the first fixing hole 513 includes a circular hole and two sides of the circular hole and are connected with the circular hole. The size of the circular hole and the square hole are respectively matched with the convex column 509 and the clamping block 510, so that the convex column 509 is limited in the circular hole after the bracket 500 is rotated, so that the convex column 509 does not move along the length of the first fixing hole 513 . When assembling, firstly insert the convex column 509 and the clamping block 510 into the first fixing hole 513, and then rotate the bracket 500 by 90 degrees, so that the convex column 509, the clamping block 510 and the first fixing hole 513 are fixed, and then assemble the U-shaped The shrapnel 511 and the barb 512 fix the U-shaped shrapnel 511, the barb 512 and the second fixing hole 514, and finally realize the relative fixed connection between the housing and the bracket, which increases the stability.

Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, The scope of the present invention is defined by the claims and their equivalents.

Claims (10)

1. A watering device, comprising a casing (100) and a water pump (200) located in the casing (100), the front end of the water pump (200) is provided with a water inlet (201), a water outlet (202) and The water outlet cavity (203) in the water pump (200) to communicate the water inlet (201) and the water outlet (202) is characterized in that: The front end of the water pump (200) is provided with a communication part that communicates with the outside, the watering device further comprises an end cover assembly covered on the outer periphery of the communication part, and the end cover assembly is provided with a water outlet cavity ( 203) A flow channel communicating with the outside through the communication portion, the flow channel is kept in a normally closed state and opened when the pressure in the water outlet cavity (203) is lower than the atmospheric pressure. 2. watering device according to claim 1 is characterized in that: The end cover assembly includes an air intake guide cover (300) that is covered on the outer periphery of the communication portion and is closed and connected to the front end of the water pump (200), and an air intake hole (302) is provided on the air intake guide cover (300). to form part of the flow channel; The end surface of the air intake guide cover (300) facing the water pump (200) is provided with an air intake diaphragm (304) that is fitted with the air intake guide cover (300) to seal the air intake hole (302). When the pressure in the water outlet cavity (203) is lower than the atmospheric pressure, the air intake diaphragm (304) is deformed toward the direction of the water pump (200) to open the air intake hole (302). 3. watering device according to claim 2 is characterized in that: The waterer further comprises a hose (307) and a circuit board (310) located in the housing (100) and provided with a water pressure sensor (308), and the air intake guide cover (300) is provided with a circuit board (310). A nozzle (306) communicated with the inner cavity of the air intake guide cover (300), the nozzle (306) is connected to one end of the hose (307), and the water pressure sensor (308) is connected to the other end of the hose (307). At one end, the water pressure sensor (308) transmits the detected water pressure signal to the circuit board (310) to adjust the rotational speed of the water pump (200). 4. watering device according to claim 2 is characterized in that: The front end of the water pump (200) is concave to form a concave portion, the bottom of the concave portion is provided with a pressure relief port (204) communicating with the water outlet cavity (203), and the air intake guide cover (300) is covered with the concave portion up and closed with the recessed part; The end cap assembly further includes a pressure relief component disposed between the air intake guide cover (300) and the recessed portion and sealingly matched with the recessed portion, and the pressure relief component blocks and seals the pressure relief port (204) in normal state to prevent the pressure relief opening (204). The water pump (200) is separated from the pressure relief port (204) at the moment of startup, the pressure relief component is enclosed with the bottom of the depression to form a pressure relief chamber (205), and the pressure relief chamber (205) is connected to the water inlet (201); The end face of the pressure relief member facing the air intake guide cover (300) is provided with a flow groove (603) for the water supply and air to circulate, and the recessed portion is provided with an air inlet (209) on the outside of the pressure relief member to constitute the communication department; The flow channel further includes a sub-flow channel formed by communicating with a first gap between the inner wall of the intake guide cover (300) and the outer wall of the pressure relief part and a second gap between the outer wall of the pressure relief part and the inner wall of the recess, the The sub-flow channels communicate with the air inlet (209) and the air inlet (302), respectively. 5. watering device according to claim 4 is characterized in that: The pressure relief component includes a pressure relief cover (600) sealingly connected to the inner wall of the recess, a compression spring (601) having one end fixedly connected to the inner wall of the pressure relief cover (600) in the direction close to the pressure relief port (204), and a fixed A pressure relief valve (602) sleeved in the other end of the compression spring (601), the pressure relief valve (602) blocks the pressure relief port (204) in a normal state, and the flow groove (603) is provided in the relief valve (603). on the gland (600). 6. watering device according to claim 2 is characterized in that: The end cover assembly further includes a drainage cover (400) disposed at the front end of the air intake guide cover (300) and leaving a gap with the air intake guide cover (300), and a drainage cover (400) is formed on the lower side of the drainage cover A pipe (401), a water receiving box (402) detachably connected to the casing (100) is arranged below the drainage pipe (401), and a water receiving box (402) is arranged on the outside of the water receiving box (402) to facilitate the water receiving The overflow groove (4021) that overflows after being filled, the external air can enter the inlet through the gap between the overflow groove (4021), the drainage pipe (401), the drainage cover (400) and the intake guide cover (300). inside the air hole (302). 7. The watering device according to any one of claims 1 to 6, characterized in that: The waterer further comprises a front shock absorbing ring (206) sleeved on the outside of the end cover assembly and a rear shock absorbing ring (207) sleeved on the rear end of the water pump (200). The front shock absorbing ring (206) and The inner wall of the rear shock-absorbing ring (207) is provided with a plurality of shock-absorbing strips (208) at intervals along the circumferential direction; the housing (100) is located at the corresponding positions of the front shock-absorbing ring (206) and the rear shock-absorbing ring (207). An arc-shaped fixing seat (101) matching the front shock-absorbing ring (206) and the rear shock-absorbing ring (207) is arranged at the seat. 8. watering device according to claim 7 is characterized in that: The housing (100) is recessed inward at the corresponding positions of the water inlet (201) and the water outlet (202), and the water inlet (201) and the water outlet (202) protrude from the recessed position of the housing (100). And the free end does not exceed the plane where the corresponding side of the casing (100) is located. 9. watering device according to claim 8, is characterized in that: The waterer further comprises a bracket (500) detachably connected to the bottom of the housing (100), the bracket (500) has two oppositely arranged clamping arms (501), and the top surface of the bracket (500) A first extension portion (507) and a second extension portion (508) are respectively formed toward the outer direction of the corresponding clamping arm (501); The top surface of the first extension part (507) is provided with an upward convex column (509), and the upper end of the convex column (509) is provided with clamping blocks (510) on both sides along the direction of the clamping arm (501); the second The underside of the extension part (508) is provided with a U-shaped elastic piece (511), and the free end of the U-shaped elastic piece (511) is provided with a barb (512); The bottom of the housing (100) is provided with a strip-shaped first fixing hole (513) into which the protruding post (509) and the clamping block (510) can be inserted, and a second fixing hole into which the barb (512) can be inserted (514), the width of the first fixing hole (513) is suitable for the protruding post (509) to rotate in it and is smaller than the distance between the ends of the two clamping blocks (510), so that the clamping block can be locked after rotating the protruding post (509). (510) Fixed. 10. The watering device according to claim 9, characterized in that: The protruding post (509) is cylindrical, the diameter of the protruding post (509) is greater than the width of the clamping block (510), and the first fixing hole (513) includes a circular hole and two sides of the circular hole. A square hole communicated with a circular hole, the sizes of the circular hole and the square hole are respectively matched with the convex column (509) and the clamping block (510), so that the convex column (509) can be rotated after the bracket (500) is rotated. It is limited in the circular hole, and passes through the convex column (509) and the clamping block (510), the first fixing hole (513), the U-shaped elastic piece (511), the barb (512) and the second fixing hole (514) The bracket and the casing are relatively fixed by cooperation.

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