Quick butt joint device for gas pipeline

Abstract

The utility model relates to the technical field of gas pipes, in particular to a gas pipeline quick butt joint device which comprises a corrugated pipe communicating gas equipment and a gas pipeline, plugs are arranged at the head end and the tail end of the corrugated pipe respectively, and the gas pipeline quick butt joint device further comprises two parts which are in detachable butt joint with the two plugs respectively and called bearing seats. Two threaded through holes are further formed in the plug insertion end, wrapping the plug, of the bearing seat, all face the plug inserted into the bearing seat, and the two threaded through holes are arranged around the plug. Two bolts are arranged in the two threaded through holes in a threaded fit mode respectively, and the two bolts are screwed down to abut against the plugs in the bearing base from the two threaded through holes of the arranged plugs respectively. A detachable clamping sleeve is further arranged on one side of the threaded through hole of the bearing seat in a clamped mode, and the clamping sleeve abuts against the tightened bolt. And disassembly and connection of gas pipelines of gas equipment are facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of gas pipes, and in particular to a gas bellows. Background Art

[0002] Gas corrugated hose is usually used to connect household gas stoves, water heaters, wall-mounted boilers and other gas equipment with gas pipelines. It has the characteristics of softness, high temperature resistance, and pressure resistance, and is suitable for use in places where gas pipelines need to be bent or are inconvenient to connect.

[0003] Various gas equipment needs to be repaired or replaced during use, but the general gas pipe plug adopts a threaded connection method that is inconvenient to disassemble and replace. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problems existing in the above-mentioned prior art, the present utility model is proposed.

[0006] A gas pipeline quick connector includes a bellows connecting the gas equipment and the gas pipeline, and plugs are respectively arranged at both ends of the bellows;

[0007] It also includes two components, called sockets, which are detachably connected to the two plugs respectively;

[0008] The two sockets are respectively a pipe end socket for connecting the gas pipe and an equipment end socket for connecting the gas equipment;

[0009] The plug insertion end of the socket that wraps the plug is also provided with two threaded through holes, both of which face the plug inserted into the socket, and the two threaded through holes are arranged around the plug;

[0010] Two bolts are respectively provided in the two threaded through holes for threaded cooperation, and the two bolts are tightened to respectively push the plug in the receiving seat from the two threaded through holes arranged in the plug;

[0011] A detachable clamping sleeve is also provided on one side of the threaded through hole of the receiving seat, and the clamping sleeve supports the tightened bolt.

[0012] The above design firstly provides a socket that can be detachably docked with the plug, connects the gas pipeline with the pipe-end socket, and then connects the gas equipment with the equipment-end socket, so that the bellows can be detachable through the plug and the socket, which is convenient for the disassembly and connection of the gas pipeline of the gas equipment. Secondly, four threaded through holes are provided on the socket, and four bolts are matched in the four threaded through holes. The bolts are pressed in the recesses in the socket, so that the plug connection is stable and not easy to fall off. Finally, a sleeve made of deformable plastic material is provided, and the sleeve presses the bolt to prevent the bolt from loosening, so that the plug and the socket can be detachable and the plug can be prevented from loosening and falling off after being inserted into the socket, thereby improving the safety of the gas pipeline quick connector.

[0013] Preferably, the body of the bellows is also covered with a coating layer made of polyvinyl chloride material; the polyvinyl chloride coating layer can provide additional protection to prevent the bellows from being affected by the external environment and extend the service life of the bellows. At the same time, the polyvinyl chloride material has good corrosion resistance and can effectively prevent the bellows from being corroded by chemical substances.

[0014] Preferably, a steel mesh is wrapped around the outer covering layer of the bellows; snap rings are provided on the plugs at both ends of the bellows, the steel mesh is provided between the plugs and the snap rings, and the snap rings are clamped on the plugs at both ends of the bellows to clamp the steel mesh; by providing the steel mesh, wrapping the steel mesh around the bellows, and then fixing the steel mesh with the snap rings, the explosion-proof capability of the bellows is increased, and the bellows is protected from being broken.

[0015] Preferably, the socket is also provided with a threaded tube, and the threaded tube is arranged at the other end of the plug insertion port on the socket, and a structure for twisting the threaded tube, called a twisting head, is also provided between the threaded tube and the plug insertion port on the socket; by arranging the threaded tube, the socket at the pipeline end can be conveniently connected to the gas pipeline, and the socket at the equipment end can be conveniently connected to the gas equipment.

[0016] Preferably, the plug and the socket are both made of stainless steel parts; the ferrule on the clamping ring is made of nitrile rubber; the plug and socket made of stainless steel increase their structural strength and wear resistance, the plug and the socket are not easily deformed, and the seal with the socket can be guaranteed after the plug is plugged in and out many times. The ferrule is made of nitrile rubber, a plastic material with high elasticity and deformation ability, which can make the nitrile rubber better cover the bolt.

[0017] Preferably, the plug is also connected to two rubber sealing rings, which are arranged on the surface of the plug inserted into the socket and in contact with the socket, and the sealing rings of the plug fill the gap between the plug and the socket.

[0018] The plug is also provided with an inclined surface that rests against the socket, the direction in which the plug is inserted into the socket is set to the front, and the inclined surface is set on the side close to the rear of the sealing ring; by setting the sealing ring and the inclined surface, it is ensured that there is no air leakage between the plug and the socket after the plug is inserted into the socket.

[0019] Preferably, the connecting end of the plug connected to the bellows is also provided with a protruding structure, called a pushing block; the pushing block on the plug inserted into the socket is arranged outside the insertion port of the socket; by providing the pushing block, it is convenient to insert or remove the plug into or out of the socket by pushing the quick pull-out, which facilitates the quick connection or removal of the plug and facilitates the disassembly of the gas pipeline of the gas equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 A schematic diagram of the overall structure of a gas pipeline quick connector according to an embodiment of the utility model;

[0022] Figure 2 A schematic cross-sectional view of the connection between the plug and the socket in a quick-connector for a gas pipe according to an embodiment of the utility model;

[0023] Figure 3 A schematic diagram of the exploded structure of the integral parts of a gas pipeline quick connector according to an embodiment of the utility model;

[0024] Figure 4 A cross-sectional schematic diagram of the connection between another plug with a steel mesh and a receiving seat in a gas pipe quick connector according to an embodiment of the utility model. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more understandable, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0028] Secondly, the "one embodiment" or "embodiment" referred to herein refers to a specific feature, structure or characteristic that can be included in at least one implementation of the utility model. The "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] Reference Figure 1-Figure 4 This embodiment provides a gas pipeline quick connector, including a bellows 1 connecting a gas device and a gas pipeline, and plugs 2 are respectively arranged at both ends of the bellows 1.

[0031] A gas pipeline quick connector comprises a bellows 1 connecting a gas device and a gas pipeline, and plugs 2 are respectively arranged at the head and tail ends of the bellows 1; it also comprises two components which are detachably docked with the two plugs 2, called sockets 3; the two sockets 3 are respectively a pipe-end socket 3 for connecting the gas pipeline, and a device-end socket 3 for connecting the gas device; the pipe-end socket 3 is connected to the gas outlet of the gas pipeline, and the device-end socket 3 is connected to the gas inlet of the gas device; four threaded through holes are also arranged on the insertion end of the plug 2 wrapped around the socket 3, and the threaded through holes are all facing the plug 2 inserted into the socket 3, and the four threaded through holes are arranged around the plug 2; four bolts 4 are respectively threadedly arranged in the four threaded through holes, and the four bolts 4 are respectively tightened from the four threaded through holes arranged in the plug 2. The plug 2 in the socket 3 is tightened in the middle; one side of the threaded through hole of the socket 3 is also engaged with a sleeve 5 of plastic material, and the sleeve 5 supports the tightened bolt 4; first, by setting a socket 3 that is detachably connected to the plug 2, the pipe-end socket 3 is used to connect the gas pipeline, and then the equipment-end socket 3 is used to connect the gas equipment, so that the bellows 1 can be detachable from the plug 2 and the socket 3, which is convenient for disassembly of the gas pipeline of the gas equipment. Secondly, four threaded through holes are set on the socket 3, and four bolts 4 are matched in the four threaded through holes. The bolts 4 are pressed in the recesses in the socket 3, so that the plug 2 is stably connected and not easy to fall off. Finally, by setting a sleeve 5 of deformable plastic material, the sleeve 5 covers the bolt 4 to prevent the bolt 4 from loosening, so that the plug 2 and the socket 3 can be detachable and the plug 2 can be prevented from loosening and falling off after being inserted into the socket 3.

[0032] The body of the bellows 1 is also covered with a coating layer made of polyvinyl chloride material; the polyvinyl chloride coating layer can provide additional protection to prevent the bellows 1 from being affected by the external environment and extend the service life of the bellows 1. At the same time, the polyvinyl chloride material has good corrosion resistance and can effectively prevent the bellows 1 from being corroded by chemical substances.

[0033] A steel mesh 10 is also wrapped around the outer covering layer of the bellows 1; snap rings 9 are also provided on the plugs 2 at both ends of the bellows 1, and the steel mesh 10 is provided between the plugs 2 and the snap rings 9, and the snap rings 9 are clamped on the plugs 2 at both ends of the bellows 1 to clamp the steel mesh 10; by providing the steel mesh 10, wrapping the steel mesh 10 on the bellows 1, and then fixing the steel mesh 10 with the snap rings 9, the explosion-proof capability of the bellows 1 is increased, and the bellows 1 is protected from being broken.

[0034] The socket 3 is also provided with a threaded tube 7, which is arranged at the other end of the plug 2 insertion port on the socket 3. The tail end of the threaded tube 7 is also provided with a structure for twisting the threaded tube 7, which is called a twisting head. By setting the threaded tube 7, the pipe-end socket 3 is conveniently connected to the gas pipeline, and the equipment-end socket 3 is conveniently connected to the gas equipment.

[0035] The connection end of the plug 2 connected to the corrugated pipe 1 is also provided with a protruding structure, called a pushing block 6; the pushing block 6 on the plug 2 inserted into the socket is arranged outside the insertion port of the socket; by setting the pushing block 6, it is convenient for the plug 2 to be inserted into or pulled out of the socket 3 by pushing the quick pull-out, which facilitates the quick connection or removal of the plug 2 and facilitates the disassembly of the gas pipeline of the gas equipment.

[0036] When in use, the pipe end socket 3 for connecting the gas pipeline is connected to the gas pipeline through the threaded pipe 7, and the pipe end socket 3 is connected to the gas outlet of the gas pipeline. The device end socket 3 for connecting the gas equipment is connected to the gas equipment through the threaded pipe 7, and the device end socket 3 is connected to the gas inlet of the gas equipment. Then the corrugated pipe 1 is inserted into the pipe end socket 3 and the device end socket 3 through the plugs 2 at both ends, respectively, so that the gas pipeline is connected to the gas equipment, and then the bolt 4 is tightened. The bolt 4 presses the plug 2 in the socket 3, and the sleeve 5 on the clamping ring 5 covers the bolt 4 to prevent the bolt 4 from loosening. When disassembly is required, the clamping ring 5 is removed, the bolt 4 is unscrewed, and the plug 2 can be pulled out from the socket 3, so as to realize the rapid disassembly and connection of the gas pipeline of the gas equipment.

[0037] Example 2

[0038] refer to Figure 2-Figure 4 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment.

[0039] The plug 2 and the socket 3 are both made of stainless steel parts; the ferrule 5 on the clamping ring 5 is made of nitrile rubber; the plug 2 and the socket 3 made of stainless steel increase their structural strength and are wear-resistant, and the plug 2 and the socket 3 are not easily deformed, and can still ensure the seal with the socket 3 after the plug 2 is plugged in and out many times. The ferrule 5 is made of nitrile rubber, a plastic material with high elasticity and deformation ability, which can make the nitrile rubber better cover the bolt 4.

[0040] The plug 2 is also connected to two rubber sealing rings 8 , which are arranged on the surface of the plug 2 inserted into the socket 3 and in contact with the socket 3 , and the sealing rings 8 of the plug 2 fill the gap between the plug 2 and the socket 3 .

[0041] The plug 2 is also provided with an inclined surface that abuts against the socket 3. The direction in which the plug 2 is inserted into the socket 3 is set to the front, and the inclined surface is set on the side close to the rear of the sealing ring 8; the plug 2 is also provided with an inclined surface that abuts against the socket 3. The direction in which the plug 2 is inserted into the socket 3 is set to the front, and the inclined surface is set on the side close to the rear of the sealing ring 8; by providing the sealing ring 8 and the inclined surface, it is ensured that there will be no air leakage between the plug 2 and the socket 3 after the plug 2 is inserted into the socket 3.

[0042] Two elastic structures are also provided on the insertion end of the plug 2 wrapped around the socket 3, and the elastic structures are both facing the plug 2 inserted into the socket 3, and the two elastic structures are arranged around the plug 2; steel balls are connected to the elastic structures, and the steel balls on the elastic structures are pressed against the surface that fits the socket 3 along the pop-up direction of the elastic structures; by providing the steel balls and the elastic structures, the plug 2 can be initially fixed by the steel balls after being inserted into the socket 3, and then the bolts 4 are tightened to facilitate the detachable connection between the plug 2 and the socket 3.

[0043] The plug 2 is also provided with a groove, which is provided on the surface of the plug 2 inserted into the socket 3 and in contact with the socket 3, and the steel ball is inserted into the groove of the plug 2 inserted into the socket 3; by providing the groove, after the plug 2 is inserted into the socket 3, there will be a clicking sound when the steel ball hits the groove, which is convenient for judging whether the plug 2 is inserted into the position, and the plug 2 initially fixed by the steel ball in the groove will not be pulled out, which facilitates the detachable connection between the plug 2 and the socket 3, thereby realizing the convenient disassembly of the gas pipeline of the gas equipment.

[0044] During use, when the plug 2 is inserted into the socket 3, the steel ball is pushed open first, and the elastic structure is in a compressed state. When the plug 2 has been inserted into the socket 3, the elastic mechanism pushes the steel ball into the groove. A "click" sound is heard, and the sealing ring 8 fills the gap between the plug 2 and the socket 3. The inclined surface on the plug 2 rests on the inner cavity of the socket 3 to ensure that there is no air leakage between the plug 2 and the socket 3. Then the bolt 4 is tightened to clamp the clamping ring 5 to achieve an airtight connection between the socket 3 and the plug 2.

[0045] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0046] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0047] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A gas pipe quick connector, comprising a bellows connecting the gas equipment and the gas pipe, with plugs provided at both ends of the bellows, characterized in that: It also includes two components that are detachably connected to the two plugs, called sockets; The two sockets are respectively a pipe end socket for connecting to a gas pipeline and an equipment end socket for connecting to a gas device; The socket is provided with two threaded through holes on the plug insertion end that wraps around the plug, and both of the threaded through holes face the plug inserted into the socket, and the two threaded through holes are arranged around the plug; Two bolts are respectively provided in the two threaded through holes, and the two bolts are tightened to push the plug into the socket through the two threaded through holes arranged in the plug; A detachable clamping sleeve is also provided on one side of the threaded through hole of the receiving seat, and the clamping sleeve supports the bolt.

2. The gas pipeline quick connector according to claim 1, characterized in that: The body of the corrugated pipe is also covered with a coating layer made of polyvinyl chloride.

3. The gas pipeline quick connector according to claim 2, characterized in that: The outer covering layer of the corrugated pipe is also wrapped with a steel wire mesh; The plugs at both ends of the bellows are also engaged with clamping rings, and the steel mesh is arranged between the plugs and the clamping rings. The clamping rings are clamped on the plugs at both ends of the bellows to clamp the steel mesh.

4. The gas pipeline quick connector according to claim 3, characterized in that: The socket is also provided with a threaded tube, which is arranged at the other end of the plug insertion port on the socket. A structure for twisting the threaded tube, called a twisting head, is also provided between the threaded tube and the plug insertion port on the socket.

5. The gas pipeline quick connector according to claim 4, characterized in that: The plug is also connected to two rubber sealing rings, which are arranged on the surface of the plug that is inserted into the socket and fits with the socket. The sealing rings of the plug fill the gap between the plug and the socket.

6. The gas pipeline quick connector according to claim 5, characterized in that: The plug is also provided with an inclined surface that abuts against the receiving seat. The direction in which the plug is inserted into the receiving seat is set to the front, and the inclined surface is set to the side behind the sealing ring.

7. The gas pipeline quick connector according to any one of claims 1 to 6, characterized in that: The connecting end of the plug connected to the corrugated pipe is also provided with a protruding structure, called a pushing block; The pushing block on the plug inserted into the socket is arranged outside the socket.

Images