CN201784769U - Inflating machine - Google Patents

Abstract

The utility model provides an inflating machine, which comprises an outer shell and a main body, and adorn in the cylinder in the main body, go up the gas lid and have interface C, interface D and interface E's three-way valve, cylinder lower extreme suit is in the interface E of three-way valve, it adorns in the cylinder up end to go up the gas lid, it has seted up the gas outlet to go up the gas lid, this gas outlet facial make-up is equipped with the joint of giving vent to anger of taking the air duct, be provided with the mechanism of inflating in three-way valve and the cylinder, should inflate the mechanism and include that one end is worn out the main part lateral wall and with sprocket fixed mounting, the other end and the transmission shaft that is located the eccentric block fixed connection of three-. The utility model discloses join in marriage on the bicycle, the person of facilitating the use inflates the bicycle, and the process is inflated to the completion that can be laborsaving fast to can audio-visually observe the pressure of tire, the inflation process is scientific more.

Description

an inflator

technical field

The utility model relates to an inflator, in particular to an inflator for inflating bicycles and tricycles.

Background technique

As we all know, when a bicycle is in use, it needs to be inflated every few days to ensure the normal use of the bicycle. Present bicycles, especially mountain bikes, are generally equipped with a manual pump. When the tires of the bicycle are flat, they can be pumped anytime and anywhere, avoiding the trouble of looking for pumps everywhere when the tires are flat. However, the existing manual air pumps are very laborious when pumping air, which brings certain difficulties to users with less strength.

Utility model content

The technical problem to be solved by the utility model is to provide an inflator which can quickly and labor-savingly inflate bicycles and tricycles.

In order to solve the above technical problems, the utility model takes the following technical solutions:

An inflator includes a casing and a main body, a cylinder installed in the main body, an upper air cover and a three-way valve with a port C, a port D and a port E, the lower end of the cylinder is set in the port E of the three-way valve, and the upper The air cover is installed on the upper end surface of the cylinder, and the upper air cover is provided with an air outlet, and the air outlet is equipped with an air outlet joint with an air guide pipe, and an air pumping mechanism is arranged in the three-way valve and the cylinder.

The inflating mechanism includes a transmission shaft with one end passing through the side wall of the main body and fixedly installed with the sprocket, and the other end is fixedly connected with the eccentric block located in the three-way valve. A pin is fixedly attached to the eccentric block. One end of the pin is connected to The piston located inside the cylinder is fixedly connected. Wherein the upper end of the piston is provided with a stepped surface, and the upper end of the piston is sequentially set with a sealing ring, a pressure ring and an air-tight sheet placed on the stepped surface.

The upper air cover is a tee pipe with interface F, interface G and interface J, the interface F is the air inlet, the interface J is the air outlet, the air outlet joint with the air guide pipe is connected to the interface J, and the upper air cover is provided with There is a plug for plugging the connection G. The upper gas cover is also equipped with a pressure gauge, the lower end of the pressure gauge is installed in the interface G of the upper gas cover, and the upper gas cover is also provided with a spring with one end in contact with the plug and the other end in contact with the lower surface of the pressure gauge. .

The side wall of the main body is provided with a groove, the outer wall of the three-way valve is provided with a block matching the groove, the upper gas cover is fixed in the bracket, and the bracket is provided with a card matching the groove. plate. A sleeve for supporting the chain is installed on the outer wall of the main body, and one end of the sleeve is fastened with a block to prevent the chain from shifting. The upper end of the main body is provided with a chute, and the outer wall of the main body is also equipped with a mounting block. The lower end of the mounting block is movably mounted on the outer wall of the main body. The wall body is fastened to the mounting block by nuts, and the other end is fixedly installed with the adjusting handle.

The utility model is installed on the fork rod of the bicycle through the installation block, and the sprocket is placed on the bicycle chain. Only by turning the pedal in the opposite direction to make the chain rotate backward, the pump can be driven to pump air, and the bicycle will not be driven to walk. It is easy, labor-saving and time-saving, and it is equipped with a pressure gauge, which can clearly and intuitively observe the tire pressure, making the inflation process more scientific.

Description of drawings

Accompanying drawing 1 is a schematic diagram of the three-dimensional structure of the utility model; Accompanying drawing 2 is a schematic diagram of a cross-sectional structure of the utility model; Accompanying drawing 3 is a schematic diagram of the structure of the utility model in an exploded state; Accompanying drawing 4 is a three-dimensional structure of the utility model mounted on a bicycle fork schematic diagram.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the accompanying drawings.

As shown in accompanying drawings 1, 2, and 3, an inflator includes a casing 1 and a main body 2, a cylinder 3 installed in the main body 2, an upper gas cover 4, and a tee with an interface C, an interface D, and an interface E. Valve 5, the lower end of the cylinder 3 is set in the interface E of the three-way valve 5, the upper air cover 4 is installed on the upper end surface of the cylinder 3, the upper air cover 4 is provided with an air outlet, and the air outlet is equipped with an air guide tube 6 The air outlet interface 7, the three-way valve 5 and the cylinder 3 are provided with an inflating mechanism.

The inflating mechanism includes a transmission shaft 10 whose one end passes through the side wall of the main body 2 and is fixedly installed with the sprocket 8, and the other end is fixedly connected with the eccentric block 9 located in the three-way valve 5, and a pin shaft is fixedly attached to the eccentric block 9 11. One end of the pin shaft 11 is fixedly connected to the piston 12 located in the cylinder 3. The upper end of the piston 12 is provided with a stepped surface 13, and the upper end of the piston 12 is sequentially set on the sealing ring 14 on the stepped surface 13, and the pressure ring 15 and air-tight sheet 16, pressure ring 15 compresses sealing ring 14, and sealing ring 14 periphery is in close contact with cylinder 3 inwalls, and pressing sheet can also be installed again when air-tight sheet 16 tops.

In order to further optimize the design, the upper air cover 4 is set as a tee pipe 4 with an interface F, an interface G, and an interface J, wherein the interface F is the air inlet, the interface J is the air outlet, and the air outlet joint 7 with the air guide pipe 6 is connected to the air outlet. The interface J is installed, and the upper gas cover 4 is provided with a plug 17 for blocking the interface G. In addition, in order to allow the operator to observe the pressure of the tire more intuitively, a pressure gauge 18 is installed on the upper air cover 4, the lower part of the pressure gauge 18 is installed in the interface G of the upper air cover 4, and the bottom surface of the pressure gauge 18 A spring 19 is arranged between the plug and one end of the spring 19 is in contact with the bottom surface of the pressure gauge 18 and the other end is in contact with the upper surface of the plug 17 . When pumping air, the gas pushes the spring 19 upwards to compress it, and the pressure gauge 18 displays the corresponding pressure value, so that the operator can intuitively observe the specific situation and facilitate the operation.

In order to facilitate assembly, a groove 20 is provided on the side wall of the main body 2, a block 21 matching the groove 20 is provided on the outer wall of the three-way valve 5, and the upper gas cover 4 is fixed in a bracket 28, which 28 is provided with a clamping plate 281 that matches the groove 20, and the upper air cover 4 is installed on the three-way valve 5 by passing through the screws on the bracket 28. At this time, the bottom surface of the upper air cover 4 tightly blocks the pressure gauge 18 The upper port of the pressure gauge 18 realizes the circulation of gas through the interface F of the upper gas cover 4 and the upper gas cover 4 . When assembling, just insert the block 21 into the groove 20 to fix the three-way valve 5. Similarly, insert the clamp 281 into the groove 20 to fix the upper air cover 4 , Assembly and disassembly are extremely convenient. In addition, a sleeve 22 for supporting the chain is installed on the outer wall of the main body 2, and one end of the sleeve 22 is fastened with a stopper 23 to prevent the chain from shifting. The upper end of the main body 2 is provided with a chute 24. A mounting block 25 is installed on the top, and the lower end of the mounting block 25 is hingedly mounted on the outer wall of the main body 2 through bolts. A positioning pin 26 is arranged on the chute 24, and one end of the positioning pin 26 passes through the wall at the upper end of the mounting block 25. And it is fastened on the mounting block 25 by a nut, and the other end is fixedly installed with the adjusting handle 27, and the adjusting handle 27 is convenient for assembly and disassembly.

As shown in accompanying drawings 2 and 4, the utility model is installed on the bicycle fork bar 30 through the installation block, the chain 31 of the bicycle is clamped on the sprocket, and the pedal is turned in the opposite direction to make the chain rotate backwards to realize pumping Purpose while not driving the bicycle. Initially, the plug in the upper air cover blocks the air intake interface F of the upper air cover, and the air outlet end of the air guide pipe is installed on the air nozzle of the bicycle. When the pedals are turned in the opposite direction, the chain of the bicycle drives the sprocket to rotate, and the sprocket drives the eccentric block to rotate through the transmission shaft. With the rotation of the eccentric block, the piston reciprocates up and down in the cylinder, and the gas in the cylinder moves upwards. When the gas pressure is sufficient to push the plug, the plug is pushed and moves upward, the gas enters the upper gas cover through the upper port of the cylinder and the inlet port F of the upper gas cover, and then passes through the upper gas The air outlet interface J of the cover enters the air outlet joint, and finally is discharged into the tire through the air guide tube connected with the air outlet joint. Since the interface G of the upper air cover is blocked by the lower end of the pressure gauge, the gas will not be discharged from the interface G. In addition, since the sprocket of the bicycle is much larger than the sprocket of the utility model, it saves time and effort when pumping air, is easy to operate, and can complete the inflation relatively quickly. When the plug is pushed upwards, the spring is compressed, and the spring acts on the pressure gauge, and the pressure gauge displays the corresponding pressure value. During the inflation process, the pressure gauge displays the corresponding pressure value in real time. , so that the operator can intuitively observe the tire pressure, making the inflation process more scientific and humane.

The above-mentioned embodiment is a preferred implementation of the utility model. In addition, the utility model can also be realized in other ways. Under the premise of not departing from the inventive concept of the utility model, any obvious replacement is within the scope of the utility model. within the scope of protection.

Claims (8)

1. An inflator, comprising a shell (1) and a main body (2), characterized in that: it also includes a cylinder (3) installed in the main body, an upper gas cover (4) and has an interface C, an interface D and an interface E The three-way valve (5), the lower end of the cylinder is set in the interface E of the three-way valve, the upper air cover is installed on the upper surface of the cylinder, the upper air cover is provided with an air outlet, and the air outlet is equipped with an air guide tube (6) The gas outlet joint (7), three-way valve and cylinder are provided with pumping mechanism. 2. The inflator according to claim 1, characterized in that: the inflating mechanism includes one end passing through the side wall of the main body and fixedly installed with the sprocket (8), and the other end connecting with the eccentric block (9) located in the three-way valve ) is fixedly connected to the transmission shaft (10), and the eccentric block is fixedly connected with a pin shaft (11), and one end of the pin shaft is fixedly connected with the piston (12) located in the cylinder. 3. The inflator according to claim 2, characterized in that: the upper end of the piston is provided with a stepped surface (13), and the upper end of the piston is sequentially fitted with a sealing ring (14) and a pressure ring (15) placed on the stepped surface. And airtight sheet (16). 4. The inflator according to claim 1, 2 or 3, characterized in that: the upper air cover is a tee pipe with interface F, interface G and interface J, interface F is an air inlet, and interface J is The air outlet, the air outlet joint with the air guide tube is connected with the interface J, and the upper air cover is provided with a plug (17) for blocking the interface G. 5. The inflator according to claim 4, characterized in that: said upper gas cover is also equipped with a pressure gauge (18), the lower end of which pressure gauge is installed in the interface G of the upper gas cover, and the upper gas cover A spring (19) is also provided with one end in contact with the plug and the other end in contact with the bottom surface of the pressure gauge. 6. The pump according to claim 1, 2 or 3, characterized in that: the side wall of the main body is provided with a groove (20), and the outer wall of the three-way valve is provided with a card matching the groove. Block (21), the upper gas cover is fixedly arranged in the support (28), and the clamping plate (281) matching with the groove is provided on the support. 7. The pump according to claim 6, characterized in that: a sleeve (22) for supporting the chain is installed on the outer wall of the main body, and one end of the sleeve is fastened with a screw to prevent the chain from shifting. block (23). 8. The pump according to claim 7, characterized in that: the upper end of the main body is provided with a chute (24), the outer wall of the main body is also equipped with a mounting block (25), and the lower end of the mounting block is movably mounted on the main body On the outer wall, the chute is also provided with a positioning pin (26), and one end of the positioning pin passes through the wall body at the upper end of the mounting block and is fastened on the mounting block by a nut, and the other end is fixedly installed with the adjusting handle (27).

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