Gas pipeline connecting device with long service life
The gas pipeline connection device addresses the issue of short service life by using a conical pressure ring and fitting surface to stabilize the hook, enhancing durability and sealing, thus extending the device's lifespan and preventing gas leakage.
Patent Information
- Application Number
- CN202421161326.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-27
AI Technical Summary
Existing gas pipeline connection devices suffer from a short service life due to the hook of the locking buckle easily moving out of the groove when forces separate the pipes, causing damage to the hinge and fixing seat.
A gas pipeline connection device with a pressure ring having a conical surface that presses on the hook to transmit forces away from the hinge, combined with a fitting surface and elastic ring to enhance stability and a sealing gasket for prevention of gas leakage.
The device extends the service life by minimizing hinge pressure and preventing hook slippage, while ensuring secure connection and sealing performance.
Smart Images
Figure CN222229756U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas pipelines, in particular to a gas pipeline connecting device with a long service life. Background Art
[0002] As an important part of modern urban energy supply, gas pipelines have the advantages of high efficiency, safety, stability, and environmental protection, and are widely used in various fields. Therefore, how to connect gas pipelines efficiently and stably is crucial.
[0003] The existing gas pipeline connection device is described in the Chinese patent application with the publication number CN2270623090U. Figure 1 As shown, it includes a first pipe 1 and a second pipe 2. At least two locking buckles 3 are provided on the first pipe 1, and a groove 4 corresponding to the locking buckle 3 is provided on the second pipe 2. The locking buckle 3 hinged on the fixing seat 7 is rotated to make the hook 31 of the locking buckle 3 snap into the groove 4, and then the sleeve 5 threadedly connected to the first pipe 1 is pressed on the tail 33 of the locking buckle 3, so that the hook 31 of the locking buckle 3 presses the second pipe 2 onto the first pipe 1.
[0004] However, in this connection mode, when a force is generated between the first pipe 1 and the second pipe 2 to separate each other in opposite directions, the hook 31 tends to move out of the slot 4. However, due to the arrangement of the sleeve 5, the sleeve 5 also has an upward supporting force on the tail 33, so that the locking buckle 3 exerts a large radial outward force on the fixing seat 7 along the first pipe 1, which can easily cause damage to the hinge between the locking buckle 3 and the fixing seat 7, resulting in a short service life. Utility Model Content
[0005] The utility model aims to provide a gas pipeline connecting device with a long service life. When a force is generated between a first pipeline and a second pipeline to separate them from each other, the hook has a tendency to move out of the groove. Since the conical surface of the pressure ring is pressed on the hook, the force transmitted to the hook by the second pipeline is transmitted to the pressure ring, so that the pressure on the hinge between the locking ring and the first pipeline is small and the service life is long.
[0006] In order to solve the above technical problems, the utility model adopts the following solutions:
[0007] A gas pipeline connection device with a long service life comprises a first pipeline and a second pipeline, wherein at least two locking buckles are hinged on the first pipeline, the locking buckle comprises a hook, and the second pipeline is provided with a slot. When the first pipeline and the second pipeline are connected, the hook of the locking buckle is inserted into the slot, the second pipeline is externally threadedly connected to a pressure ring coaxially arranged with the second pipeline, the inner wall of the pressure ring is provided with an internal thread, the outer surface of the second pipeline is provided with an external thread matching the internal thread, the external thread is located on the side of the slot away from the first pipeline, the inner wall of the pressure ring close to the slot is a conical surface, and the knob pressure ring presses the locking buckle to fasten the first pipeline and the second pipeline together. Its function is that, through the setting of the pressure ring connected to the external thread of the second pipe, after the hook is inserted into the groove, the conical surface in the pressure ring can be pressed on the hook by turning the knob pressure ring. When a force of separation in opposite directions is generated between the first pipe and the second pipe, the hook tends to move out of the groove. Since the conical surface of the pressure ring presses on the hook, the force transmitted to the hook by the second pipe is transmitted to the pressure ring, the pressure on the hinge between the locking ring and the first pipe is small, and the service life is long.
[0008] Furthermore, a fixing seat for hinged connection with a locking buckle is provided on the outer wall of the first pipe.
[0009] Furthermore, a fitting surface is provided on the top of the outer wall of the hook, and when the hook is inserted into the slot, the fitting surface is arranged parallel to the conical surface on the pressure ring. Its function is that, through the setting of the fitting surface, when the hook is inserted into the slot, the conical surface can be closely fitted with the fitting surface, so that when the hook has a tendency to move out of the slot, the hook can be prevented from sliding on the conical surface of the inner wall of the pressure ring.
[0010] Furthermore, the locking buckle further comprises a tail portion and a bending portion arranged between the tail portion and the hook, and the first pipe outer sleeve is provided with an elastic ring passing through the outer wall of the bending portion. Its function is that, through the provision of the elastic ring, after the hook is inserted into the slot, the elastic ring can be moved on the hook to increase the pressure of the hook on the slot.
[0011] Furthermore, the angle between the hook and the tail is less than 180°, and the middle of the outer wall of the hook and the middle of the outer wall of the tail are both provided with limiting protrusions. The function of the limiting protrusions is to prevent the elastic ring from falling out of the locking ring.
[0012] Furthermore, the outer wall of the bending portion is rounded, which serves to facilitate the elastic ring to move axially along the first pipe on the outer wall of the locking buckle through the design of the shape of the outer wall of the bending portion.
[0013] Furthermore, a guide groove is provided at the end of the first pipe opposite to the second pipe, and when the second pipe is connected to the first pipe, the second pipe is inserted into the guide groove, so that the first pipe and the second pipe can be coaxially arranged.
[0014] Furthermore, a sealing gasket is provided between the first pipeline and the second pipeline, and its function is to enhance the sealing performance when the first pipeline and the second pipeline are connected, thereby avoiding gas leakage in the pipeline.
[0015] Furthermore, the slot is in the shape of an annular slot surrounding the outer wall of the second pipe, and its function is to enable any locking buckle to be inserted into the slot through the design of the slot shape.
[0016] Furthermore, the outer wall of the pressure ring is in the shape of a hexagonal prism, which serves to facilitate the use of tools such as a wrench to screw the pressure ring through the design of the shape of the outer wall of the pressure ring.
[0017] The utility model has the beneficial effects:
[0018] 1. By setting a pressure ring connected to the external thread of the second pipe, after the hook is inserted into the slot, the cone surface in the pressure ring can be pressed on the hook by turning the knob pressure ring. When a force of separation from each other is generated between the first pipe and the second pipe, the hook tends to move out of the slot. Since the cone surface of the pressure ring presses on the hook, the force transmitted to the hook by the second pipe is transmitted to the pressure ring, the pressure on the hinge between the locking ring and the first pipe is small, and the service life is long.
[0019] 2. By setting the fitting surface, the conical surface can be closely fitted with the fitting surface when the hook is inserted into the slot, so that when the hook tends to move out of the slot, the hook can be prevented from sliding on the conical surface of the inner wall of the pressure ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of a pipeline connection device in the prior art;
[0021] Figure 2 It is a structural schematic diagram of Example 1;
[0022] Figure 3 This is a schematic diagram of the structure after the first pipeline and the second pipeline in Example 1 are connected.
[0023] Figure numerals: 1. first pipe; 2. second pipe; 3. locking buckle; 31. hook; 32. bending portion; 33. tail; 4. slot; 5. pressure ring; 6. conical surface; 7. fixing seat; 8. fitting surface; 9. elastic ring; 10. limiting protrusion; 11. guide groove; 12. sealing gasket; 13. sleeve. DETAILED DESCRIPTION
[0024] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.
[0025] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.
[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0027] Example 1
[0028] A gas pipeline connection device with a long service life, such as Figure 2 As shown, it includes a first pipe 1 and a second pipe 2, at least two locking buckles 3 are hinged on the first pipe 1, the locking buckle 3 includes a hook 31, and a slot 4 is provided on the second pipe 2. When the first pipe 1 and the second pipe 2 are connected, the hook 31 of the locking buckle 3 is inserted into the slot 4, and the second pipe 2 is externally threadedly connected to a pressure ring coaxially arranged with the second pipe 2, and the inner wall of the pressure ring is provided with an internal thread, and the outer surface of the second pipe 2 is provided with an external thread matching the internal thread, and the external thread is located on the side of the slot 4 away from the first pipe 1, as shown in FIG. Figure 3 As shown, the inner wall of the pressure ring close to the slot 4 is a tapered surface 6, and the knob pressure ring presses the locking buckle 3 to fasten the first pipe 1 and the second pipe 2 together. Its function is that, by setting the pressure ring connected to the external thread of the second pipe 2, after the hook 31 is inserted into the slot 4, the knob pressure ring can be used to press the tapered surface 6 in the pressure ring on the hook 31. When a force is generated between the first pipe 1 and the second pipe 2 to separate from each other, the hook 31 tends to move out of the slot 4. Since the tapered surface 6 of the pressure ring presses on the hook 31, the force transmitted from the second pipe 2 to the hook 31 is transmitted to the pressure ring, and the pressure on the hinge between the locking ring and the first pipe 1 is small, and the service life is long.
[0029] Specifically, Figure 2 As shown, a fixing seat 7 for hinged connection with the locking buckle 3 is provided on the outer wall of the first pipe 1 .
[0030] Specifically, Figure 2 As shown, a fitting surface 8 is provided on the top of the outer wall of the hook 31, and when the hook 31 is inserted into the slot 4, the fitting surface 8 is arranged parallel to the tapered surface 6 on the pressing ring. Its function is that, through the setting of the fitting surface 8, when the hook 31 is inserted into the slot 4, the tapered surface 6 can be closely fitted with the fitting surface 8, so that when the hook 31 has a tendency to move out of the slot 4, the hook 31 can be prevented from sliding on the tapered surface 6 of the inner wall of the pressing ring.
[0031] Specifically, Figure 2 As shown, the locking buckle 3 further includes a tail portion 33 and a bent portion 32 disposed between the tail portion 33 and the hook 31, and the first pipe 1 is provided with an elastic ring 9 passing through the outer wall of the bent portion 32. Its function is that, through the provision of the elastic ring 9, after the hook 31 is inserted into the slot 4, the elastic ring 9 can be moved onto the hook 31 to enhance the pressure of the hook 31 on the slot 4.
[0032] Specifically, Figure 2 As shown, the angle between the hook 31 and the tail 33 is less than 180°, and the middle of the outer wall of the hook 31 and the middle of the outer wall of the tail 33 are both provided with a limiting protrusion 10. Its function is to prevent the elastic ring 9 from falling out of the locking ring through the setting of the limiting protrusion 10.
[0033] Specifically, Figure 2 As shown, the outer wall of the bending portion 32 is rounded. Its function is to facilitate the elastic ring 9 to move axially along the first pipe 1 on the outer wall of the locking buckle 3 through the design of the outer wall shape of the bending portion 32.
[0034] Specifically, Figure 2 As shown, a guide groove 11 is provided at the end of the first pipe 1 opposite to the second pipe 2. When the second pipe 2 is connected to the first pipe 1, the second pipe 2 is inserted into the guide groove 11. The function of the guide groove 11 is to keep the first pipe 1 and the second pipe 2 coaxially arranged.
[0035] Specifically, Figure 2 As shown, a sealing gasket 12 is provided between the first pipeline 1 and the second pipeline 2. Its function is to enhance the sealing performance when the first pipeline 1 and the second pipeline 2 are connected by the provision of the sealing gasket 12, thereby preventing gas leakage in the pipeline.
[0036] Specifically, Figure 2 As shown, the slot 4 is in the shape of an annular slot surrounding the outer wall of the second pipe 2. Its function is that any locking buckle 3 can be inserted into the slot 4 through the design of the slot 4 shape.
[0037] Specifically, the outer wall of the pressure ring is in the shape of a hexagonal prism, which serves to facilitate the use of tools such as a wrench to screw the pressure ring through the design of the shape of the outer wall of the pressure ring.
[0038] The working principle of this embodiment is described as follows: when the first pipe 1 is not connected to the second pipe 2 , the elastic ring 9 is located between the bending portion 32 and the limiting protrusion 10 on the tail portion 33 , and the elastic ring 9 presses the tail portion 33 against the outer wall of the first pipe 1 .
[0039] When connecting the first pipe 1 and the second pipe 2, the second pipe 2 extends into the guide groove 11 of the first pipe 1, and the second pipe 2 is pressed on the sealing gasket 12 on the first pipe 1, and then the elastic ring 9 is moved to the bending portion 32 and the hook 31 is pressed down to rotate the locking buckle 3 until the hook 31 is inserted into the groove 4, and then the elastic ring 9 is moved between the bending portion 32 and the limiting protrusion 10 on the hook 31, and the hook 31 is pressed tightly into the groove 4, and finally the pressing ring is screwed so that the conical surface 6 on the pressing ring is pressed on the fitting surface 8 on the hook 31, thereby completing the connection between the first pipe 1 and the second pipe 2.
[0040] The above is only a preferred embodiment of the utility model and does not limit the utility model in any form. According to the technical essence of the utility model, within the spirit and principles of the utility model, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the utility model.
Claims
1. A gas pipeline connection device with a long service life, comprising a first pipeline (1) and a second pipeline (2), wherein at least two locking buckles (3) are hingedly connected to the first pipeline (1), the locking buckle (3) comprises a hook (31), and the second pipeline (2) is provided with a slot (4), and when the first pipeline (1) and the second pipeline (2) are connected, the hook (31) of the locking buckle (3) is locked in the slot (4), characterized in that: The second pipe (2) is externally threadedly connected to a compression ring (5) coaxially arranged with the second pipe (2); the inner wall of the compression ring (5) is provided with an internal thread; the outer surface of the second pipe (2) is provided with an external thread matching the internal thread; the external thread is located on the side of the slot (4) away from the first pipe (1); the inner wall of the compression ring (5) close to the slot (4) is a conical surface (6); the knob compression ring (5) presses against the locking buckle (3) so that the first pipe (1) and the second pipe (2) are fastened together.
2. A gas pipeline connection device with a long service life according to claim 1, characterized in that: A fixing seat (7) for hinged connection with the locking buckle (3) is provided on the outer wall of the first pipe (1).
3. A gas pipeline connection device with a long service life according to claim 1, characterized in that: A fitting surface (8) is provided on the top of the outer wall of the hook (31). When the hook (31) is inserted into the slot (4), the fitting surface (8) is arranged parallel to the conical surface (6) on the pressure ring (5).
4. A gas pipeline connection device with a long service life according to claim 3, characterized in that: The locking buckle (3) further comprises a tail portion (33) and a bending portion (32) arranged between the tail portion (33) and the hook (31), and the first pipe (1) is provided with an elastic ring (9) passing through the outer wall of the bending portion (32) on the outer sleeve.
5. A gas pipeline connection device with a long service life according to claim 4, characterized in that: The angle between the hook (31) and the tail (33) is less than 180°, and the middle of the outer wall of the hook (31) and the middle of the outer wall of the tail (33) are both provided with a limiting protrusion (10).
6. A gas pipeline connection device with a long service life according to claim 5, characterized in that: The outer wall of the bent portion (32) is rounded.
7. A gas pipeline connection device with a long service life according to claim 1, characterized in that: A guide groove (11) is provided on the end of the first pipe (1) opposite to the second pipe (2); when the second pipe (2) is connected to the first pipe (1), the second pipe (2) is inserted into the guide groove (11).
8. A gas pipeline connection device with a long service life according to claim 1, characterized in that: A sealing gasket (12) is provided between the first pipeline (1) and the second pipeline (2).
9. A gas pipeline connection device with a long service life according to claim 1, characterized in that: The clamping groove (4) is in the shape of an annular groove surrounding the outer wall of the second pipe (2).
10. A gas pipeline connection device with a long service life according to claim 1, characterized in that: The outer wall of the pressure ring (5) is in the shape of a hexagonal column.