Metal corrugated pipe connecting structure for gas stove

Abstract

The metal corrugated pipe connecting structure comprises a corrugated pipe, a connecting pipe and two stopping pieces, the connecting pipe comprises a pipe body, a sealing sleeve and a double-end clamping ring, the sealing sleeve is annularly arranged on the inner wall of the pipe body, the double-end clamping ring is arranged in the pipe body, the two stopping pieces are arranged at the two ends of the pipe body respectively, and each stopping piece comprises a mounting ring, a rotating baffle and a limiting block; the mounting ring is connected to one end face of the pipe body, the limiting block is fixed to the mounting ring, and the rotating baffle is rotationally connected to the side, facing the double-end clamping ring, of the limiting block; the two corrugated pipes are clamped to the two ends of the double-end clamping ring correspondingly, and the rotating baffles can be pushed by the corrugated pipes to rotate in the direction close to the inner wall of the pipe body when the corrugated pipes enter the pipe body and rotate into wave troughs of the corrugated pipes when the corrugated pipes are clamped to the double-end clamping ring. The double-end clamping ring is arranged to be used for clamping the end faces of the two corrugated pipes, the stopping piece is arranged to be used for being clamped in one wave trough of the corrugated pipes, and therefore splicing of the two corrugated pipes is achieved, the structure is simple, and installation is convenient.

Description

Technical Field

[0001] This application relates to the field of corrugated pipe technology for gas stoves, and in particular to a metal corrugated pipe connection structure for gas stoves. Background Technology

[0002] During the use of gas, it is often necessary to connect the existing gas bellows because the original gas bellows is not long enough.

[0003] Existing technologies also include some corrugated pipe connection structures. For example, Chinese Patent No. CN211925087U, published on November 13, 2020, discloses a corrugated pipe joint connection structure, which includes an installation joint and a nut with a mating threaded connection. The corrugated pipe is fixedly installed between the installation joint and the nut by a sealing and locking structure. The sealing and locking structure includes: a retaining ring component, which clamps and fastens to the outer wall of the corrugated pipe, and the nut is pressed and sleeved on the retaining ring component; and a sealing sleeve, which is sleeved on one end of the corrugated pipe and connected to the retaining ring component. The sealing sleeve can be squeezed into the port of the installation joint with the corrugated pipe, and an anti-loosening limiting structure is provided between the sealing sleeve and the installation joint. The anti-loosening limiting structure includes a water-stop groove provided in the installation joint and a waterproof hook provided on the sealing sleeve and snapped into the water-stop groove.

[0004] In this application, the sealing sleeve is limited and installed inside the port of the installation joint by setting a waterproof hook and a water-stop groove to prevent the sealing sleeve from loosening and sliding inside the port of the installation joint. However, this application requires the sealing sleeve to be pre-installed and fixed inside the port of the installation joint by using the waterproof hook and the water-stop groove, and then the corrugated pipe is squeezed into the sealing sleeve. There are many parts to be operated, the installation process is relatively cumbersome, and the splicing efficiency of the corrugated pipe is low. Utility Model Content

[0005] This application provides a metal corrugated pipe connection structure for gas stoves that is easier to install.

[0006] The technical solution for the metal corrugated pipe connection structure for a gas stove provided in this application is as follows:

[0007] A metal corrugated pipe connection structure for a gas stove includes a corrugated pipe, a connecting pipe, and two stoppers. The corrugated pipe has crests and troughs. The connecting pipe includes a pipe body, a sealing sleeve, and a double-ended retaining ring. The sealing sleeve is disposed on the inner wall of the pipe body, and the double-ended retaining ring is disposed within the pipe body. The two stoppers are disposed at both ends of the pipe body. Each stopper includes a mounting ring, a rotating baffle, and a limiting block. The mounting ring is connected to one end face of the pipe body, and the limiting block is fixed to the mounting ring. The limiting block corresponds to the rotating baffle, and the rotating baffle is rotatably connected to the side of the limiting block facing the double-ended retaining ring. The two corrugated pipes are respectively engaged at both ends of the double-ended retaining ring. The rotating baffle can be pushed by the corrugated pipe to rotate towards the inner wall of the pipe body when the corrugated pipe enters the pipe body, and rotates into the trough of the corrugated pipe when the corrugated pipe is engaged with the double-ended retaining ring.

[0008] Preferably, the double-headed retaining ring includes a retaining ring body and two retaining parts. The two retaining parts are located at both ends of the retaining ring body and connected to the outer ring of the retaining ring body. The side of the retaining part facing away from the retaining ring body is an arc-shaped convex surface, and the side facing the retaining ring body is an arc-shaped concave surface.

[0009] Preferably, the inner ring of the retaining ring body is provided with a protruding ring, and the protruding ring and the two retaining parts form two grooves.

[0010] Preferably, the mounting ring is provided with a plurality of limiting blocks evenly arranged along the inner ring, and the rotating baffle is provided with a plurality of limiting blocks corresponding to the plurality of rotating baffles, with the plurality of limiting blocks corresponding to the plurality of rotating baffles one by one.

[0011] Preferably, the rotating baffle includes a hinge and a plate body, the hinge being connected to the limiting block, and the plate body being hinged to the limiting block via the hinge.

[0012] Preferably, the mounting ring and the tube body are provided with screws along the length of the tube body, and the mounting ring is provided with a clearance groove along the length of the tube body, and the clearance groove is provided in a one-to-one correspondence with the screw.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] 1. This application sets a double-headed retaining ring to clamp the end faces of two corrugated pipes, and sets a stop to clamp one of the troughs of the corrugated pipe, thereby realizing the splicing of two corrugated pipes. The structure is simple, easy to install, and the connection structure between the connecting pipe and the corrugated pipe is stable.

[0015] 2. This application provides a convex ring, and two grooves are formed between the convex ring and the two snap-fit ​​parts for the two bellows to abut against each other, so that the two bellows can be aligned, and the channels for gas transmission inside the bellows are also aligned, so that the two bellows are less likely to reduce the gas transmission efficiency due to misalignment.

[0016] 3. By setting a clearance groove, it is easy to insert screws to fix the mounting ring to the pipe body. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of this application.

[0018] Figure 2 This is a cross-sectional view of a preferred embodiment of this application.

[0019] Figure 3 This is a partial enlarged view of a preferred embodiment of this application.

[0020] Figure 4 This is a schematic diagram of the double-headed retaining ring in a preferred embodiment of this application.

[0021] Figure 5 This is a schematic diagram of the mounting ring in a preferred embodiment of this application.

[0022] Explanation of reference numerals in the attached drawings: 1. Corrugated pipe; 11. Corrugation crest; 12. Corrugation trough; 2. Connecting pipe; 21. Pipe body; 22. Sealing sleeve; 23. Double-headed retaining ring; 231. Retaining ring body; 232. Snap-fit ​​part; 232a. Arc-shaped convex surface; 232b. Arc-shaped concave surface; 233. Convex ring; 234. Groove; 3. Stop; 31. Mounting ring; 311. Clearance groove; 32. Rotating baffle; 321. Hinge; 322. Plate body; 33. Limiting block; 34. Screw. Detailed Implementation

[0023] The present application will be further described in detail below with reference to the accompanying drawings.

[0024] This application provides a metal corrugated pipe connection structure for a gas stove, such as... Figures 1 to 5 As shown, the device includes a corrugated pipe 1, a connecting pipe 2, and two stoppers 3. The corrugated pipe 1 has crests 11 and troughs 12. The connecting pipe 2 includes a pipe body 21, a sealing sleeve 22, and a double-ended retaining ring 23. The sealing sleeve 22 is arranged around the inner wall of the pipe body 21, and the double-ended retaining ring 23 is disposed inside the pipe body 21. The two stoppers 3 are respectively disposed at both ends of the pipe body 21. Each stopper 3 includes a mounting ring 31, a rotating baffle 32, and a limiting block 33. The mounting ring 31 is connected to one end face of the pipe body 21, and the limiting block 33 is used to limit the movement of the pipe body 21. Positioning block 33 is fixed on mounting ring 31. Positioning block 33 corresponds one-to-one with rotating baffle 32. Rotating baffle 32 is rotatably connected to the side of positioning block 33 facing double-headed retaining ring 23. Two bellows 1 are respectively clamped at both ends of double-headed retaining ring 23. Rotating baffle 32 can be pushed by bellows 1 to rotate towards the inner wall of pipe body 21 when bellows 1 enters pipe body 21, and rotate into the trough 12 of bellows 1 when bellows 1 is clamped in double-headed retaining ring 23.

[0025] In the present application, a metal corrugated pipe connection structure for a gas stove is used such that two corrugated pipes 1 are squeezed into the pipe body 21 from both ends until the end faces of the two corrugated pipes 1 are respectively engaged with the ends of the double-headed retaining ring 23. The double-headed retaining ring 23 fixes the corrugated pipes 1 inside the pipe body 21. During the squeezing process, the rotating baffle 32 rotates towards the inner wall of the pipe body 21 under the push of the corrugated peaks 11 to form a channel through which the corrugated peaks 11 can pass. After the corrugated pipes 1 stop moving, the rotating baffle 32 is engaged in the trough 12 between the two corrugated peaks 11 and is not easily moved out of the pipe body 21 under the limitation of the limiting block 33, thereby locking the corrugated pipes 1. When the corrugated pipes 1 move in the direction of detaching from the pipe body 21, the corrugated pipes 1 are stopped. Compared with the prior art, the metal corrugated pipe connection structure for a gas stove of the present application has a simple structure, is easy to install, and the connection structure between the connecting pipe 2 and the corrugated pipes 1 is stable.

[0026] like Figure 4 As shown, the double-headed retaining ring 23 includes a retaining ring body 231 and two retaining parts 232. The two retaining parts 232 are respectively located at both ends of the retaining ring body 231 and connected to the outer ring of the retaining ring body 231. The side of the retaining part 232 facing away from the retaining ring body 231 is an arc-shaped convex surface 232a, and the side facing the retaining ring body 231 is an arc-shaped concave surface 232b. The arc-shaped concave surface 232b matches the crest 11 of the corrugated pipe 1. The double-headed retaining ring 23 is made of plastic. When the corrugated pipe 1 is squeezed into the pipe body 21, the end face of the corrugated pipe 1 contacts the arc-shaped convex surface 232a and slides onto the retaining ring body 231 under the guidance of the arc-shaped convex surface 232a. The crest 11 is squeezed into the arc-shaped concave surface 232b and cooperates with the arc-shaped concave surface 232b to complete the fixation of the end face of the corrugated pipe 1.

[0027] The inner ring of the retaining ring body 231 is provided with a protruding ring 233. Two grooves 234 for placing the bellows 1 are formed between the protruding ring 233 and the two retaining parts 232. The two grooves 234 are opposite to each other, and the size of the grooves 234 matches the bellows 1. The end face of the bellows 1 abuts against the bottom of the groove 234.

[0028] In this way, the two corrugated pipes 1 respectively abut against the two grooves 234 of the double-headed retaining ring 23, so that the two corrugated pipes 1 can be aligned, and the channels for gas transmission inside the corrugated pipes 1 are also aligned, so that the two corrugated pipes 1 are less likely to reduce the gas transmission efficiency due to misalignment.

[0029] The mounting ring 31 is uniformly provided with multiple limiting blocks 33 along the inner ring. The rotating baffle 32 is provided with multiple corresponding limiting blocks 33. The multiple limiting blocks 33 are provided one-to-one with the multiple rotating baffles 32. The limiting blocks 33 and the mounting ring 31 are integrally cast. The rotating baffle 32 includes a hinge 321 and a plate 322. The hinge 321 is connected to the limiting blocks 33. The plate 322 is hinged to the limiting blocks 33 through the hinge 321. Specifically, the mounting ring 31 is uniformly provided with four limiting blocks 33 along the inner ring. The four plates 322 are correspondingly hinged to the four limiting blocks 33.

[0030] like Figure 5 As shown, screws 34 are inserted through the mounting ring 31 and the pipe body 21 along the length of the pipe body 21. The mounting ring 31 has a clearance groove 311 along the length of the pipe body 21, with each clearance groove corresponding to a screw 34. This facilitates the insertion of the screws 34 and fixes the mounting ring 31 to the pipe body 21. The mounting ring 31 and the pipe body 21 are connected by screws 34 in a detachable structure. This allows the bellows 1 to be removed from the pipe body 21 by removing the mounting ring 31 during disassembly, and then pulled out of the mounting ring 31.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A metal corrugated pipe connection structure for a gas stove, characterized in that: It includes a bellows (1), a connecting pipe (2), and two stoppers (3), wherein the bellows (1) is formed with crests (11) and troughs (12); The connecting pipe (2) includes a pipe body (21), a sealing sleeve (22), and a double-headed retaining ring (23). The sealing sleeve (22) is encircled on the inner wall of the pipe body (21). The double-headed retaining ring (23) is set inside the pipe body (21). Two stop members (3) are respectively set at both ends of the pipe body (21). The stop member (3) includes an installation ring (31), a rotating baffle (32), and a limiting block (33). The installation ring (31) is connected to one end face of the pipe body (21). The limiting block (33) is fixed on the installation ring (31). The limiting block (33) corresponds one-to-one with the rotating baffle (32). The rotating baffle (32) is rotatably connected to the side of the limiting block (33) facing the double-headed retaining ring (23). The two corrugated pipes (1) are respectively snapped into the two ends of the double-headed retaining ring (23). The rotating baffle (32) can be pushed by the corrugated pipe (1) to rotate towards the inner wall of the pipe body (21) when the corrugated pipe (1) enters the pipe body (21), and rotate into the trough (12) of the corrugated pipe (1) when the corrugated pipe (1) is snapped into the double-headed retaining ring (23).

2. The metal corrugated pipe connection structure for a gas stove according to claim 1, characterized in that: The double-headed retaining ring (23) includes a retaining ring body (231) and two retaining parts (232). The two retaining parts (232) are respectively disposed at both ends of the retaining ring body (231) and connected to the outer ring of the retaining ring body (231). The side of the retaining part (232) facing away from the retaining ring body (231) is an arc-shaped convex surface (232a), and the side facing the retaining ring body (231) is an arc-shaped concave surface (232b).

3. The metal corrugated pipe connection structure for a gas stove according to claim 2, characterized in that: The inner ring of the retaining ring body (231) is provided with a protruding ring (233), and the protruding ring (233) and the two retaining parts (232) form two grooves (234).

4. The metal corrugated pipe connection structure for a gas stove according to claim 1, characterized in that: The mounting ring (31) is uniformly provided with multiple limiting blocks (33) along the inner ring, and the rotating baffle (32) is provided with multiple corresponding limiting blocks (33), and the multiple limiting blocks (33) are provided one-to-one with the multiple rotating baffles (32).

5. The metal corrugated pipe connection structure for a gas stove according to claim 1, characterized in that: The rotating baffle (32) includes a hinge (321) and a plate (322). The hinge (321) is connected to the limiting block (33), and the plate (322) is hinged to the limiting block (33) through the hinge (321).

6. The metal corrugated pipe connection structure for a gas stove according to claim 1, characterized in that: The mounting ring (31) and the tube body (21) are provided with screws (34) along the length direction of the tube body (21). The mounting ring (31) is provided with a relief groove (311) along the length direction of the tube body (21). The relief groove (311) is provided in a one-to-one correspondence with the screw (34).

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