TWI811811B - Pipe fittings for fire protection and gardening - Google Patents

Abstract

The invention discloses a fire-fighting and gardening pipe joint, which includes a first joint, a second joint, an adapter, and a twist lock ring. The twist lock ring is sleeved on the outer peripheral side of the adapter and has an annular groove and at least one detent convex block forming a wall of the annular groove. The second joint has a second shaft hole for partially accommodating the adapter, a second shaft head matching the annular groove, and at least one latch formed on the outer peripheral side of the second shaft head that matches the latch projection. Groove and vertical end groove. Through the composition of the above components, the second shaft hole is selectively inserted into the connecting piece, and the second shaft head is inserted into the ring groove. Through the rotation of the twist lock ring, the latch convex block is engaged through the vertical end groove. In the latch groove, the first and second connectors can be connected in series or separated.

Description

Firefighting and gardening pipe joints

The present invention relates to the technical field related to quick-release joints, and particularly refers to a fire-fighting and gardening pipe joint.

Both firefighting and gardening use hoses to divert water. The source water output from the water supply end (such as a fire hydrant or faucet) is guided to the water source and then output by a matching water control head.

However, in order to facilitate the connection and removal of hoses and water supply ends or water control heads, quick-release joints are often used to connect them. When the length of the hose is insufficient, multiple hoses will be connected in series for extension, and the connection methods of each hose are often achieved with quick-release connectors.

However, the structure of the quick-release joint in the prior art, as shown in FIG. 14 , generally includes a matching fixed joint 91 and a movable joint 92 . The mating end surfaces have matching engaging blocks 911, 921 and engaging grooves 912, 922 respectively.

In the prior art, the purpose of separation or series connection is achieved by rotating the fixed joint 91 or the movable joint 92 . As shown in Figure 14, the fixed joint 91 or the movable joint 92 is also connected in series with a hose S1, S2, when the user twists the fixed joint 91 or the movable joint 92. It is necessary to synchronously rotate the hoses S1 and S2 connected thereto to separate or connect the fixed joint 91 or the movable joint 92 in series.

In addition to causing a waste of user force, when hoses S1 and S2 are used for fire protection or high-pressure water supply, the hoses S1 and S2 themselves have to withstand pressure. According to the demand, the material has a certain weight and anti-torsion rigidity, which causes inconvenience and burden for the user to rotate the fixed joint 91 or the movable joint 92 . Furthermore, when there is residual pressure in the hoses S1 and S2, it is even more difficult to twist the fixed joint 91 or the movable joint 92. If necessary, multiple people need to cooperate to twist the hoses S1 and S2 to rotate the fixed joint 91 or the movable joint 92.

In view of the problems and deficiencies in the prior art, the main purpose of the present invention is to provide a fire-fighting and gardening pipe joint that can be separated and connected in series with minimal effort, and to solve the deficiencies in the prior art through structural innovation and design.

According to the above object of the present invention, a fire-fighting and gardening pipe joint is proposed, which includes a first joint, a second joint, an adapter, and a twist lock ring. The twist lock ring is sleeved on the outer peripheral side of the adapter and has an annular groove and at least one detent convex block forming a wall of the annular groove. The second joint has a second shaft hole for partially accommodating the adapter, a second shaft head matching the annular groove, and at least one latch formed on the outer peripheral side of the second shaft head that matches the latch projection. Groove and vertical end groove. Through the composition of the above components, the second shaft hole is selectively allowed to accommodate the adapter, and the second shaft head is inserted into the ring groove. The rotation of the twist lock ring is used to allow the latch convex block to fit through the vertical end groove. In the latch groove, it is used to connect or separate the first and second connectors.

10:First connector

11:First axis column

12:First axis head

13:First shaft hole

14: First screw joint part

15: Second screw joint part

16: Side screw hole

20: Anti-loosening screws

30:Second connector

31:Second axis column

32:Second shaft head

33:Latching slot

331: Leading angle

332:Limited room

34:Vertical end groove

35:Second shaft hole

351: Undertake section

352:Connection segment

3521:Resistance hill

3522:Thread

36: Anti-slip ring

40:Adapter

41:Adapter hole

42: Shaft segment

43: Head section

44: Figure

50: twist lock ring

51: Ring hole

52: Ring groove

53:Latching bump

531: Limiting part

<Previous Skill>

60:Water pipe

70:Inner copper sleeve

91: Fixed joint

911: Fit block

92:movable joint

922: Fit slot

S1, S2: hose

T: Teflon ring

O: Washer

D: Disc gasket

G: control water head

[Fig. 1] is a schematic three-dimensional view of an embodiment of the present invention.

[Fig. 2] is a schematic cross-sectional view of the embodiment shown in Fig. 1.

[Fig. 3] is an exploded schematic diagram of the embodiment shown in Fig. 1.

[Figure 4] is a schematic diagram of the embodiment shown in Figure 3 from another perspective.

[Fig. 5] is another exploded schematic diagram of the embodiment shown in Fig. 1.

[Fig. 6] is a schematic diagram of the operation of the embodiment shown in Fig. 1.

[Fig. 7] is an action diagram (1) of the A-A section line in the embodiment shown in Fig. 2.

[Fig. 8] is an action diagram (2) of the A-A section line in the embodiment shown in Fig. 2.

[Figure 9] is a schematic diagram of an embodiment of the connection water control head of the present invention.

[Fig. 10] is a schematic cross-sectional view of another embodiment of the present invention.

[Fig. 11] is a schematic diagram of another embodiment of the first joint of the present invention.

[Fig. 12] is a schematic diagram of the embodiment shown in Fig. 11 from another perspective.

[Fig. 13] is a schematic cross-sectional view of another embodiment of the twist lock ring of the present invention.

[Figure 14] is a schematic diagram of an embodiment of a quick release head according to the prior art.

Please refer to the relevant drawings below to further describe the embodiments of the fire protection and gardening pipe joints of the present invention. Various objects in the embodiments are drawn according to the proportions, sizes, deformations or displacements suitable for illustration, rather than according to the proportions of actual components, and are explained first. The same and symmetrically arranged components in the remaining embodiments are represented by the same numbers. In addition, directional terms such as "front, rear, left, right, upper, lower, inner, outer" in the description of the embodiments listed below are expressed according to the specified viewing direction and cannot be construed as limitations of the present invention.

Referring to FIGS. 1 to 5 , the fire protection and gardening pipe joint of the present invention includes a first joint 10 , a locking screw 20 , a second joint 30 , an adapter 40 , and a twist lock ring 50 .

The above-mentioned first joint 10 has a first shaft 11 , a first shaft head 12 , a first shaft hole 13 , a first screw connection part 14 , a second screw connection part 15 and one side screw hole 16 .

The first shaft column 11 and the first shaft head 12 are respectively formed at opposite ends of the first joint 10; wherein, the radial outer profile of the first shaft head 12 is larger than the first shaft head 12. Column 11.

The first shaft hole 13 is formed through the first joint 10 along the extending direction. During implementation, the first shaft hole 13 is a first-class hole, and the position corresponding to the first shaft head 12 is a large diameter section.

The first threaded portion 14 is formed on the outer peripheral side of the first shaft column 11 .

The second threaded portion 15 is formed at a predetermined position of the large diameter section of the hole wall of the first shaft hole 13 .

The side screw hole 16 is recessed from the outer peripheral side of the first shaft head 12 corresponding to the second screw portion 15, connects the first shaft hole 13 and the outside of the first joint 10, and provides the locking screw 20 for locking.

The second joint 30 has a second shaft 31 , a second shaft head 32 , at least one locking groove 33 , at least one vertical end groove 34 , a second shaft hole 35 , and an anti-slip ring portion 36 .

The second shaft post 31 and the second shaft head 32 are respectively formed at opposite ends of the second joint 30 . The radial outer profile of the second shaft head 32 is larger than the second shaft head 31 .

The locking groove 33 is recessed along a partial circumference of the outer circumference of the second shaft head 32 .

The vertical end groove 34 corresponds to an end position of the locking groove 33 and is recessed outside the second shaft head 32 along the extending direction of the second joint 30 to connect the locking groove 33 and the second shaft head 32 away from the second shaft head 32 . One end of the two-axis column 31 is a cross-section.

The second shaft hole 35 is formed by the concentric first shaft hole 13 penetrating the second joint 30, and has a receiving section 351 and a connecting section 352 with different hole diameters in sequence. During implementation, the hole wall of the connecting section 352 is provided with a plurality of resistance hills 3521.

The anti-slip ring portion 36 is arranged along the outer circumference of the second shaft head 32 and is adjacent to the locking groove 33 .

The above-mentioned adapter 40 has one end connected to the first joint 10 and the other end selectively inserted into the second shaft hole 35 (receiving section 351). It has an adapter hole 41, a shaft section 42, a first section 43, and a body section. 44.

The adapter hole 41 is formed through the adapter member 40 in the extending direction. During implementation, the local aperture cross-section of the adapter hole 41 is polygonal to provide interaction with the matching tool (not shown in the figure).

The shaft section 42 and the head section 43 are respectively formed at opposite ends of the adapter 40 . And the shaft segment 42 is screwed to the second screwed portion 15 of the first joint 10 . During implementation, an anti-loosening screw 20 can be locked in the side screw hole 16 of the first joint 10 to increase the reliability of the screw connection.

The body section 44 is formed on the adapter 40 to connect the shaft section 42 and the head section 43 . Its radial outer profile is larger than the shaft section 42 but smaller than the head section 43 and the first shaft head 12 of the first joint 10 .

The above-mentioned twist lock ring 50 is sleeved on the outer peripheral side of the body portion 44 of the adapter 40 and has an annular hole 51 , an annular groove 52 , and at least one latch protrusion 53 .

The ring hole 51 is formed by the concentric first shaft hole 13 penetrating the twist lock ring 50, allowing the body portion 44 of the adapter 40 to extend through. Moreover, the diameter of the ring hole 51 is smaller than the head section 43 of the adapter 40 , and the twist lock ring 50 is rotatably constrained between the first joint 10 and the head section 43 of the adapter 40 .

The annular groove 52 is a concentric annular hole 51 recessed in the predetermined end face of the twist lock ring 50 to provide the second shaft head 32 of the second joint 30 for insertion.

The latch protrusion 53 matches the latch groove 33 and the vertical end groove 34 of the second joint 30 and protrudes from the wall of the annular groove 52 .

Therefore, the above is a preferred embodiment of the present invention, an introduction to the various components and assembly methods of fire-fighting and gardening pipe joints, and the operating characteristics of the embodiment of the present invention are introduced as follows.

As shown in FIGS. 1 to 9 , the first joint 10 can be connected to the water control head G using the first screw portion 14 . The second joint 30 provides a water pipe 60 connection. The connection method can insert one end of the water pipe 60 into the second shaft hole 35 (connection section 352) from the outside of the second joint 30, and match an inner copper sleeve 70 with the plurality of resistance hills 3521 on the wall of the second shaft hole 35 (connection section 352). The outer supports are rolled together to form a tight fit between the water pipe 60 and the hole wall of the second shaft hole 35 (connecting section 352).

When the first and second joints 10 and 30 are to be connected in series, as shown in Figures 5 to 9, it is only necessary to fit the second shaft hole 35 of the second joint 30 with the head section 43 of the adapter 40, and make the first The second shaft head 32 of the second joint 30 is inserted into the ring groove 52 of the twist lock ring 50 . During the process, the rotating lock ring 50 is rotated to cause the locking protrusion 53 on the wall of the ring groove 52 to move along the vertical end groove 34 of the second shaft head 32 and to enter the connection between the locking groove 33 and the vertical end groove 34. At one end, the locking ring 50 is twisted to make the locking protrusion 53 snap into the locking groove 33 . In this way, the series connection of the first and second joints 10 and 30 can be completed, and there is no need to twist the water control head G or the water pipe 60 connected in series by the first and second joints 10 and 30, thus overcoming the deficiencies of the previous technology.

The first joint 10 cooperates with the adapter 40, the second joint 30 and the twist lock ring 50 to form a rotatable connection state. When the user twists and turns the water control head G, the first joint 10 and its series-connected adapter 40 will be synchronously linked to rotate relative to the second joint 30 and the twist lock ring 50, thereby preventing the second joint 30 and its connection The water pipe 60 rotates to form entanglement.

Please refer to Figures 2 to 4. In order to make the rotation of the twist lock ring 50 smoother and more labor-saving, at least one Teflon ring T is further sleeved on the outer peripheral side of the body 44 of the adapter 40 to separate the twist lock ring. 50 is in contact with the end surface (head section 43) of the adapter 40.

In addition, a pre-pressure is provided when the twist-lock ring 50 is rotated. The outer peripheral side of the body 44 of the adapter 40 is further connected with at least one disc-shaped gasket D to separate the twist-lock ring 50 (or Teflon ring T ) is in contact with the end surface (head section 43) of the adapter 40.

Please refer to FIG. 10 , which is another embodiment of the connecting section 352 of the second shaft hole 35 of the second joint 30 of the present invention. The hole wall of the second shaft hole 35 has a thread 3522 corresponding to the connecting section 352 . During implementation, the connecting section 352 can also be provided with a gasket O.

Please refer to FIGS. 11 to 13 , which are another embodiment of the second joint 30 and the twist lock ring 50 of the present invention. The corner of the groove wall adjacent to the latching groove 33 of the second joint 30 and the vertical end groove 34 has a leading angle 331 to facilitate the latching protrusion 53 of the twist lock ring 50 to engage in the latching groove 33 .

In addition, the locking groove 33 is adjacent to one side of the groove bottom and has a limiting chamber 332 recessed therein.

In addition, the locking protrusion 53 of the twist lock ring 50 is provided with a limiting portion 531 protruding from the limiting chamber, which facilitates the positioning of the twist lock ring 50 during operation.

The above descriptions are only preferred embodiments of the present invention. They are intended to clarify the characteristics of the present invention and are not intended to limit the scope of the embodiments of the present invention. Those skilled in the art may make equivalent changes based on the present invention. , and changes well known to those skilled in the art, should still fall within the scope of the present invention.

10:First connector

11:First axis column

12:First axis head

13:First shaft hole

14: First screw joint part

16: Side screw hole

20: Anti-loosening screws

30:Second connector

36: Anti-slip ring

50: twist lock ring

60:Water pipe

Claims (10)

A fire-fighting and gardening pipe joint, which includes: A first joint having a first shaft hole penetrating the first joint and a second threaded portion provided on the wall of the first shaft hole; A second joint has a second shaft head, at least one detent groove and a vertical end groove that are recessed along the outside of the second shaft head and are connected perpendicularly, and the vertical end groove is further connected to the sectional surface of one end of the second shaft head , In addition, the second joint has a second shaft hole concentric with the first shaft hole; An adapter, one end connected to the second screw portion, the other end selectively inserted into the second axis hole, having an adapter hole concentric with the first axis hole, and according to the extension direction of the adapter. The sequence has a shaft section, a body section and a head section, the shaft section is screwed to the second threaded part, and the outer contour of the body section is larger than the shaft section but smaller than the head section; and A twist lock ring is attached to the outer peripheral side of the body, has a ring hole for the body part to extend, a ring groove that is concentric with the ring hole and is recessed in the preset end face of the twist lock ring, and at least one matching latch. The groove and the vertical end groove are protruding from the latching projections on the groove wall of the annular groove. As claimed in claim 1, the pipe joint for fire protection and gardening, wherein the first joint has a screw hole on one side to match the second threaded portion, providing an anti-loosening screw to lock and resist the adapter. The fire-fighting and gardening pipe joint described in claim 1, wherein at least one Teflon ring is attached to the outer circumferential side of the body part to separate the twist-lock ring and the head part. The pipe joint for fire protection and gardening as described in claim 1, wherein the local aperture section of the adapter hole is polygonal. The fire-fighting and gardening pipe joint described in claim 1, wherein an anti-slip ring protrudes from the outside of the second shaft head adjacent to the latch groove. The fire-fighting and gardening pipe joint described in claim 1, wherein the second shaft hole is fitted with an inner copper sleeve to tightly connect a water pipe. The fire-fighting and gardening pipe joint as claimed in claim 1, wherein a portion of the hole wall of the second shaft hole has a thread. The pipe joint for fire protection and gardening as described in claim 1, wherein the hole wall of the second axis hole is partially provided with a plurality of resistance hills. The pipe joint for fire protection and gardening as described in claim 1, wherein the corner of the groove wall adjacent to the locking groove and the vertical end groove has a leading angle. The pipe joint for fire protection and gardening as described in claim 1, wherein the locking groove is adjacent to the groove wall on one side of the bottom of the groove and is recessed with a limit chamber; the catch convex block is matched with a limit portion protruding from the limit chamber.

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