A device for connecting gas pipes
By using a design that alternates between rubber rings and annular plates, combined with threaded fit and mechanical locking structure, the problem of aging and failure of seals in gas pipeline connection devices is solved, achieving multiple dynamic seals and convenient seal maintenance.
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN TOWNGAS CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-31
AI Technical Summary
In existing gas pipeline connection devices, the seals are prone to aging and failure, and the replacement operation is complicated, resulting in gas leakage and inconvenient maintenance.
The design employs an alternating distribution of rubber rings and annular plates, combined with threaded fit and mechanical locking structure, to achieve multiple dynamic seals. The rubber rings are then tightened and sealed again by rotating the external threaded tube.
It achieves multiple dynamic sealing effects, effectively blocking gas leakage, and is easy to operate, facilitating the replacement and maintenance of seals.
Smart Images
Figure CN224579911U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pipeline connection, specifically a device for connecting gas pipelines. Background Technology
[0002] A gas pipe is a special pipeline for transporting combustible gas. Two different gas pipe sections can be connected by a pipe connection device to facilitate the use of gas. Gas pipe connections use seals, but a single seal is usually used, which is prone to aging and failure, and the operation of replacing the seal is complicated. Therefore, a gas pipe connection device with better sealing effect has been designed. Utility Model Content
[0003] This utility model provides a device for connecting gas pipelines to overcome the deficiencies in the prior art.
[0004] This utility model is achieved through the following technical solution:
[0005] A gas pipeline connection device includes a first pipeline and a second pipeline. An outer pipe is fixedly installed on the first pipeline, and the second pipeline is inserted into the outer pipe. The outer pipe and the second pipeline are limited by a connection mechanism. An annular groove is opened in the outer pipe, and several rubber rings and annular plates are provided in the annular groove. The rubber rings and annular plates are staggered and fitted onto the second pipeline. One end of the annular groove is provided with an internal thread, and an external threaded pipe is installed in threaded connection.
[0006] As described above, a gas pipeline connection device includes a connection mechanism comprising several hinge shafts, each hinge shaft having a latch hinged to it. One end of each latch is fixedly provided with a spherical hook. Several hooks are fixedly installed on the second pipeline, and the hooks engage with the hooks.
[0007] As described above, in a gas pipeline connection device, the second pipeline is provided with an external thread, and an internal threaded pipe is installed in threaded fit, with one end of the internal threaded pipe abutting and contacting the hook.
[0008] As described above, in a gas pipeline connection device, the outer circumference of the internally threaded pipe is provided with anti-slip texture.
[0009] As described above, a gas pipeline connection device is provided with a rubber gasket between the first pipeline and the second pipeline.
[0010] As described above, in a gas pipeline connection device, several levers are fixedly installed on the external threaded pipe.
[0011] The advantages of this utility model are: the utility model has a simple structure and ingenious design. It adopts an alternating distribution of rubber rings and annular plates to achieve a multi-layer dynamic sealing effect, effectively blocking gas leakage. When the rubber ring near the joint of the two gas pipes ages first, the external threaded pipe can be tightened again to form a seal. The operation is simple, easy to maintain, can meet actual needs, and is suitable for promotion. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Cross-sectional view; Figure 3 yes Figure 1 Isometric view.
[0014] Reference numerals: 10, first pipe; 11, second pipe; 12, outer pipe; 13, annular groove; 14, rubber ring; 15, annular plate; 16, externally threaded pipe; 20, hinge shaft; 21, snap fastener; 22, snap hook; 23, hook head; 30, internally threaded pipe; 50, rubber pad; 60, lever. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0016] A gas pipeline connection device, such as Figure 1 , 2As shown in Figure 3, the device includes a first pipe 10 and a second pipe 11. An outer pipe 12 is fixedly installed on the first pipe 10, and the second pipe 11 is inserted into the outer pipe 12. The outer pipe 12 and the second pipe 11 are limited by a connecting mechanism. An annular groove 13 is formed in the outer pipe 12, and several rubber rings 14 and annular plates 15 are provided in the annular groove 13. The rubber rings 14 and annular plates 15 are staggered and fitted onto the second pipe 11. One end of the annular groove 13 has an internal thread, and an external threaded pipe 16 is threadedly installed thereon. This utility model has a simple structure and ingenious design. The staggered distribution of rubber rings 14 and annular plates 15 achieves a multi-layered dynamic sealing effect, effectively blocking gas leakage. When the rubber rings 14 near the joint of the two gas pipes age first, simply unscrewing the external threaded pipe 16 can press the rubber rings 14 back into a seal. The operation is simple, easy to maintain, meets practical needs, and is suitable for widespread application. When using this utility model, the external threaded pipe 16, rubber ring 14, and annular plate 15 are fitted onto the second pipe 11. The second pipe 11 is inserted into the outer pipe 12, and the first pipe 10 and the second pipe 11 are connected together by a connecting mechanism. Then, the external threaded pipe 16 is rotated so that the annular plate 15 squeezes the rubber ring 14 to form a seal. When the leftmost rubber ring 14 ages first, the external threaded pipe 16 is rotated again so that the annular plate 15 further presses the rubber ring 14. Multiple rubber rings 14 form multiple seals, reducing leakage caused by the aging of the leftmost rubber ring 14.
[0017] Specifically, as shown in the figure, the connection mechanism described in this embodiment includes several hinge shafts 20, which are evenly distributed circumferentially. Each hinge shaft 20 is hinged with a buckle 21, which can be bent and deformed. One end of each buckle 21 is fixed with a spherical hook head 23. Several hooks 22 are fixedly installed on the second pipe 11, and each hook 22 corresponds to a hook head 23. The hooks 22 are evenly distributed circumferentially, and the hooks 22 and hook heads 23 engage with each other. Push the buckle 21 to rotate along the hinge shaft 20, so that the hook head 23 moves closer to the hook 22. After the hook head 23 contacts the hook 22, the buckle 21 bends and deforms, gradually causing the hook head 23 to pass the apex of the hook 22. When the hook head 23 has completely passed the apex, the buckle 21 springs back, and the hook head 23 and the hook 22 fit tightly together to form a mechanical lock. When it is necessary to separate the hook head 23 from the hook 22, pull the buckle 21 outward to make it drive the hook head 23 to disengage from the hook 22.
[0018] Specifically, as shown in the figure, the second pipe 11 in this embodiment is provided with an external thread, and an internally threaded pipe 30 is installed in threaded fit. One end of the internally threaded pipe 30 is in contact with the hook head 23. When the hook head 23 is engaged with the catch hook 22, the internally threaded pipe 30 is rotated so that the left end of the internally threaded pipe 30 abuts against one side of the hook head 23, thereby preventing the hook head 23 from disengaging from the catch hook 22 without human intervention.
[0019] Furthermore, as shown in the figure, the outer circumference of the internally threaded tube 30 in this embodiment is provided with anti-slip texture, which is not shown in the figure. The anti-slip texture makes it less likely to slip when rotating the internally threaded tube 30, making rotation more convenient and effortless.
[0020] Furthermore, as shown in the figure, a rubber gasket 50 is provided between the first pipe 10 and the second pipe 11 in this embodiment. The rubber gasket 50 can further enhance the sealing effect.
[0021] Furthermore, as shown in the figure, several levers 60 are fixedly installed on the externally threaded tube 16 in this embodiment, and the levers 60 are evenly distributed around the circumference. Rotating the externally threaded tube 16 by means of the levers 60 is more convenient and less strenuous.
[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A gas pipeline connection device, comprising a first pipeline (10) and a second pipeline (11), wherein an outer pipe (12) is fixedly installed on the first pipeline (10), and the second pipeline (11) is inserted into the outer pipe (12), and the outer pipe (12) and the second pipeline (11) are limited by a connection mechanism, characterized in that: An annular groove (13) is opened inside the outer tube (12). Several rubber rings (14) and annular plates (15) are provided inside the annular groove (13). The rubber rings (14) and annular plates (15) are staggered and fitted onto the second pipe (11). One end of the annular groove (13) is provided with an internal thread, and an external threaded pipe (16) is installed in threaded fit.
2. A device for connecting gas pipes according to claim 1, characterized in that: The connecting mechanism includes several hinge shafts (20), each hinge shaft (20) is hinged with a buckle (21), and one end of each buckle (21) is fixed with a spherical hook (23). Several hooks (22) are fixedly installed on the second pipe (11), and the hooks (22) and hooks (23) engage with each other.
3. A device for connecting gas pipes according to claim 2, characterised in that: The second pipe (11) is provided with an external thread, and an internal threaded pipe (30) is installed in the threaded fit. One end of the internal threaded pipe (30) is in contact with the hook (23).
4. A device for connecting gas pipes according to claim 3, characterised in that: The outer periphery of the internally threaded tube (30) is provided with anti-slip texture.
5. A device for connecting gas pipes according to claim 1, characterized in that: A rubber pad (50) is provided between the first pipe (10) and the second pipe (11).
6. A device for connecting gas pipes according to claim 1, characterized in that: Several levers (60) are fixedly installed on the externally threaded tube (16).