Fuel gas corrugated pipe

Abstract

The utility model belongs to the technical field of gas pipelines, and particularly relates to a gas corrugated pipe which comprises a pipe body. The locking structure comprises a connector and a locking piece connected with the connector, and a mounting hole is formed in the locking piece; the clamping piece is arranged outside the pipe body and is connected with the locking piece; the sealing structure is arranged among the joint, the locking piece, the clamping piece and the pipe body; wherein a sheath is further arranged outside the pipe body, and one end of the pipe body sequentially penetrates through the clamping piece and the sealing structure and then enters the mounting hole. The pipe body has the beneficial effects that through cooperation of the locking structure and the clamping piece, the pipe body mounting and dismounting process becomes simple and rapid, the working efficiency is improved, the mounting and maintenance cost is reduced, and it can be guaranteed that the pipe body can be kept in a fixed state for a long time after being mounted and is not affected by external factors to be loosened.

Description

Technical Field

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

[0002] The bellows for connecting gas appliances is used to connect the main gas pipeline and the gas cooker, and the gas, liquefied petroleum gas or biogas between the main gas pipeline and the gas cooker is transported through the bellows section. During use, the gas is transported in a tortuous path through the flexible bending of the bellows section.

[0003] The patent with publication number CN220623142U discloses a knock-free gas pipe integral clamp quick-installation pipe fitting, the key points of its technical solution include a butt joint, a bellows and a nut, the butt joint includes an external end, and an external thread is provided on the external end.

[0004] The above patent improves the overall installation efficiency and convenience by setting an integral retaining ring and a first seal, etc. However, in actual use, although the bellows can be clamped quickly, the continuous fixing effect after installation needs to be strengthened. The problem of falling off may still occur after long-term use, which needs to be improved. Utility Model Content

[0005] The purpose of this application is to provide a gas bellows that can solve the above problems.

[0006] The purpose of this application is to provide a gas bellows, comprising:

[0007] tube body;

[0008] The locking structure comprises a joint and a locking member connected to the joint, wherein a mounting hole is arranged in the locking member;

[0009] A clamping member, disposed outside the tube body and connected to the locking member;

[0010] A sealing structure is provided between the joint, the locking member, the clamping member and the pipe body;

[0011] Among them, a sheath is also arranged outside the tube body, and one end of the tube body passes through the clamping piece and the sealing structure in sequence and then enters the installation hole.

[0012] By adopting the above-mentioned gas bellows, by setting a locking structure, including a joint and a locking piece, the pipe body can be firmly connected to the required pipeline system, ensuring that the pipe body can maintain a stable connection state under high pressure or vibration environment, reducing the risk of leakage or breakage. By setting a sealing structure, the sealing between the joint, the locking piece, the clamping piece and the pipe body is ensured, effectively avoiding the problem of gas leakage, thereby ensuring safety in use. At the same time, through the cooperation of the locking structure and the clamping piece, the installation and disassembly process of the pipe body becomes simple and quick, which not only improves work efficiency, but also reduces installation and maintenance costs, and can also ensure that it can remain in a fixed state for a long time after installation, and will not be loosened due to external factors.

[0013] Furthermore, the locking member includes a first body and further includes:

[0014] External connectors;

[0015] Internal connectors;

[0016] An installation ring groove is arranged between the outer connecting piece and the inner connecting piece, and a docking piece adapted to the installation ring groove is arranged on the pipe body;

[0017] The outer connecting piece is provided with an outer thread, and the inner connecting piece is provided with a reinforcing piece which fits with the inner wall of the docking piece.

[0018] By providing an external connector and providing an external thread on the external connector, the locking member can be connected to the joint to achieve overall fixation. The internal connector is provided with a reinforcing member that fits the inner wall of the docking member. The reinforcing member can fit tightly with the inner wall of the docking member on the pipe body to form a stable support, thereby further ensuring the stability and firmness of the connection. At the same time, the installation ring groove is provided so that when the pipe body is inserted into the installation ring groove, the docking member can fit tightly with the installation ring groove to form a stable connection structure, which prevents the pipe body from twisting or deforming at the connection to a certain extent, and ensures the reliability and durability of the connection.

[0019] Further: the reinforcing member is constrained at the edge of the opening of the inner connecting member, and is composed of a plurality of bendable plates, and the plurality of plates are evenly arranged.

[0020] The bending of the reinforcement requires the assistance of corresponding equipment. After the locking piece is connected to the pipe body, the plate body is bent through the corresponding equipment so that each plate body is tightly attached to the inner wall of the pipe body and the docking piece, thereby completing the installation between the locking piece and the pipe body, effectively ensuring the firmness of the connection between the locking piece and the pipe body, and further improving the overall connection strength and sealing effect. After that, you only need to install the sealing structure and the clamping piece in sequence, and finally tighten the joint and the locking piece.

[0021] Furthermore, the joint includes a second body and further includes:

[0022] An internal thread, provided on the second body and adapted to the external thread on the external connecting member;

[0023] A supporting concave ring is arranged on an end of the second body away from the internal thread;

[0024] The supporting concave ring contacts the clamping piece and is used to support the clamping piece.

[0025] The internal thread is arranged on the second body and is matched with the external thread on the external connection piece, so that the joint and the locking piece can be tightly fixed through the threaded connection to form a firm connection structure, and the internal density structure and the clamping piece are fixed, and the matching of the internal thread and the external thread can also provide additional sealing performance to ensure that the gas will not leak from the connection. The supporting concave ring is arranged on the end of the second body away from the internal thread, contacts with the clamping piece and is used to support the clamping piece, providing a stable support point for the clamping piece, which can ensure that the clamping piece will not shift or deform during the locking process, thereby maintaining its original clamping force and sealing.

[0026] Furthermore, the clamping member includes a third body and a plurality of abutment rings arranged in the third body, the abutment rings are engaged with the outer wall of the tube body, and a limiting ring adapted to the supporting concave ring is arranged on the outer wall of the third body.

[0027] By setting the clamping piece, the sealing structure can continue to be supported to ensure that the sealing structure can stably achieve the sealing effect. The clamping piece includes a third body and a plurality of abutment rings arranged inside the third body, which can provide additional stability and sealing performance. The third body is used for support and protection, and the abutment ring is arranged in the third body and is clamped with the outer wall of the tube body to form a tight structure, which further enhances the stability and sealing of the connection. At the same time, the setting of the limit ring enables the clamping piece to be accurately aligned with the joint during installation and stably fixed on the supporting concave ring.

[0028] Furthermore, the sealing structure comprises:

[0029] The first sealing member comprises a ring body and an inserting portion arranged on the ring body, wherein the outer wall of the inserting portion is in close contact with the inner wall of the external connecting member;

[0030] A second sealing member is disposed between the first sealing member and the clamping member, and a protrusion is disposed on the inner wall of the second sealing member to contact the outer wall of the tube body;

[0031] Wherein, a deformation groove is arranged on the outer wall of the first sealing member.

[0032] By setting a first seal, the first seal includes a ring body and an inserting part arranged on the ring body, and the outer wall of the inserting part is in close contact with the inner wall of the outer connecting part, forming a tight sealing interface, which can effectively prevent the gas from leaking from the gap between the outer connecting part and the pipe body. A deformation groove is arranged on the outer wall of the first seal, so that the first seal can be deformed to a certain extent when subjected to pressure, so as to better adapt to pipes of different sizes and shapes, and ensure the tightness and reliability of the seal.

[0033] By setting a second sealing member, the second sealing member is located between the first sealing member and the clamping member, and a plurality of protrusions in contact with the outer wall of the tube body are provided on the inner wall of the second sealing member. The protrusions can form a plurality of contact points with the outer wall of the tube body, thereby increasing the surface area of ​​the seal and improving the sealing effect, thereby further preventing the gas from leaking from the gap between the tube body and the clamping member.

[0034] The beneficial effects of this application are:

[0035] 1. Through the cooperation of the locking structure and the clamping parts, the installation and disassembly process of the pipe body becomes simple and quick, which not only improves the work efficiency, but also reduces the installation and maintenance costs, and can also ensure that it can remain fixed for a long time after installation and will not be loosened due to external factors;

[0036] 2. By setting the reinforcement piece and bending the plate body, each plate body is closely attached to the inner wall of the pipe body and the docking piece, so as to complete the installation between the locking piece and the pipe body, effectively ensure the firmness of the connection between the locking piece and the pipe body, and further improve the overall connection strength and sealing effect;

[0037] 3. By setting up a sealing structure, the sealing between the joint, locking piece, clamping piece and the pipe body is ensured, effectively avoiding the problem of gas leakage, thereby ensuring safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of the utility model;

[0039] Figure 2 It is a structural schematic diagram of the utility model from another perspective;

[0040] Figure 3 yes Figure 1 A is an enlarged view of the middle image.

[0041] The reference numerals in the figure are: 100, tube body; 110, sheath; 200, joint; 210, second body; 230, supporting recessed ring; 300, locking member; 310, first body; 320, external connecting member; 330, internal connecting member; 340, mounting ring groove; 350, docking member; 360, reinforcement member; 370, mounting hole; 400, clamping member; 410, third body; 420, abutment ring; 430, limiting ring; 500, sealing structure; 510, first sealing member; 511, ring body; 512, insertion portion; 520, second sealing member; 521, protrusion; 530, deformation groove. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0043] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0044] The gas bellows provided in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0045] Embodiment 1:

[0046] like Figures 1 to 3 As shown, the embodiment of the present application provides a gas bellows, comprising:

[0047] Tube body 100;

[0048] The locking structure includes a joint 200 and a locking member 300 connected to the joint 200, wherein a mounting hole 370 is provided in the locking member 300;

[0049] The clamping member 400 is disposed outside the tube body 100 and connected to the locking member 300;

[0050] The sealing structure 500 is disposed between the joint 200, the locking member 300, the clamping member 400 and the tube body 100;

[0051] A sheath 110 is further provided outside the tube body 100 , and one end of the tube body 100 passes through the clamping member 400 and the sealing structure 500 in sequence and then enters the mounting hole 370 .

[0052] In some implementations of the embodiments of the present application, Figure 1 As shown, by adopting the above-mentioned gas bellows, by setting a locking structure, including a joint 200 and a locking piece 300, the pipe body 100 can be firmly connected to the required pipeline system, ensuring that the pipe body 100 can maintain a stable connection state under high pressure or vibration environment, reducing the risk of leakage or breakage. By setting a sealing structure 500, the sealing between the joint 200, the locking piece 300, the clamping piece 400 and the pipe body 100 is ensured, effectively avoiding the problem of gas leakage, thereby ensuring safety in use. At the same time, through the cooperation of the locking structure and the clamping piece 400, the installation and disassembly process of the pipe body 100 becomes simple and quick, which not only improves work efficiency, but also reduces installation and maintenance costs, and can also ensure that it can remain in a fixed state for a long time after installation, and is not loosened due to external factors.

[0053] Embodiment 2:

[0054] An embodiment of the present application provides a gas bellows. In addition to the above-mentioned technical features, the gas bellows of the embodiment of the present application also includes the following technical features.

[0055] like Figures 1 to 3 As shown, the locking member 300 includes a first body 310, and further includes:

[0056] External connecting member 320;

[0057] Internal connector 330;

[0058] The mounting ring groove 340 is disposed between the outer connecting member 320 and the inner connecting member 330 , and a docking member 350 adapted to the mounting ring groove 340 is disposed on the pipe body 100 ;

[0059] The outer connecting member 320 is provided with an external thread, and the inner connecting member 330 is provided with a reinforcing member 360 which is in contact with the inner wall of the docking member 350 .

[0060] In the embodiment of the present application, by providing an external connector 320 and providing an external thread on the external connector 320, the locking member 300 can be connected to the joint 200 to achieve overall fixation. The internal connector 330 is provided with a reinforcing member 360 that fits the inner wall of the docking member 350. The reinforcing member 360 can fit tightly with the inner wall of the docking member 350 on the pipe body 100 to form a stable support, thereby further ensuring the stability and firmness of the connection. At the same time, the setting of the mounting groove 340 can make the docking member 350 fit tightly with the mounting groove 340 when the pipe body 100 is inserted into the mounting groove 340 to form a stable connection structure, which can prevent the pipe body 100 from twisting or deforming at the connection to a certain extent, and ensure the reliability and durability of the connection.

[0061] Moreover, the reinforcing member 360 is constrained at the edge of the opening of the inner connecting member 330 and is composed of a plurality of bendable plates, and the plurality of plates are evenly arranged.

[0062] In some embodiments of the present application, the bending of the reinforcement 360 needs to rely on the assistance of corresponding equipment. After the locking member 300 is connected to the tube body 100, the plate body is bent by the corresponding equipment so that each plate body is tightly attached to the inner wall of the docking member 350 on the tube body 100, thereby completing the installation between the locking member 300 and the tube body 100, effectively ensuring the firmness of the connection between the locking member 300 and the tube body 100, and further improving the overall connection strength and sealing effect. After that, it is only necessary to install the sealing structure 500 and the clamping member 400 in sequence, and finally tighten the joint 200 and the locking member 300.

[0063] Embodiment 3:

[0064] An embodiment of the present application provides a gas bellows. In addition to the above-mentioned technical features, the gas bellows of the embodiment of the present application also includes the following technical features.

[0065] like Figure 1 and Figure 2 As shown, the joint 200 includes a second body 210, and further includes:

[0066] An internal thread, provided on the second body 210 and adapted to the external thread on the external connection member 320;

[0067] A supporting concave ring 230 is disposed on an end of the second body 210 away from the internal thread;

[0068] The supporting concave ring 230 contacts the clamping member 400 and is used to support the clamping member 400 .

[0069] In the embodiment of the present application, the internal thread is arranged on the second body 210, and is adapted to the external thread on the external connection member 320, so that the joint 200 and the locking member 300 can be tightly fixed by threaded connection, forming a firm connection structure, and the internal density structure and the clamping member 400 are fixed, and the adaptation of the internal thread and the external thread can also provide additional sealing performance to ensure that the gas will not leak from the connection. The supporting concave ring 230 is arranged on the end of the second body 210 away from the internal thread, contacts with the clamping member 400 and is used to support the clamping member 400, providing a stable support point for the clamping member 400, and can ensure that the clamping member 400 will not shift or deform during the locking process, thereby maintaining its original clamping force and sealing.

[0070] Embodiment 4:

[0071] An embodiment of the present application provides a gas bellows. In addition to the above-mentioned technical features, the gas bellows of the embodiment of the present application also includes the following technical features.

[0072] like Figure 1 and Figure 2 As shown, the clamping member 400 includes a third body 410 and a plurality of abutment rings 420 disposed in the third body 410 . The abutment rings 420 are engaged with the outer wall of the tube body 100 . A limiting ring 430 adapted to the supporting recessed ring 230 is disposed on the outer wall of the third body 410 .

[0073] In the embodiment of the present application, by providing the clamping member 400, the sealing structure 500 can continue to be supported, ensuring that the sealing structure 500 can stably achieve a sealing effect. The clamping member 400 includes a third body 410 and a plurality of abutment rings 420 disposed therein, which can provide additional stability and sealing performance. The third body 410 is used for support and protection, and the abutment ring 420 is disposed in the third body 410 and is clamped with the outer wall of the tube body 100 to form a tight structure, further enhancing the stability and sealing of the connection. At the same time, the provision of the limiting ring 430 enables the clamping member 400 to be accurately aligned with the joint 200 during installation, and to be stably fixed on the supporting recessed ring 230.

[0074] Embodiment 5:

[0075] An embodiment of the present application provides a gas bellows. In addition to the above-mentioned technical features, the gas bellows of the embodiment of the present application also includes the following technical features.

[0076] like Figure 1 and Figure 2 As shown, the sealing structure 500 includes:

[0077] The first sealing member 510 includes a ring body 511 and an inserting portion 512 disposed on the ring body 511, wherein the outer wall of the inserting portion 512 is in close contact with the inner wall of the external connecting member 320;

[0078] The second sealing member 520 is disposed between the first sealing member 510 and the clamping member 400, and has an inner wall provided with a protrusion 521 that contacts the outer wall of the tube body 100;

[0079] A deformation groove 530 is provided on the outer wall of the first sealing member 510 .

[0080] In the embodiment of the present application, by providing a first sealing member 510, the first sealing member 510 includes a ring body 511 and an inserting portion 512 provided on the ring body 511, and the outer wall of the inserting portion 512 is in close contact with the inner wall of the outer connecting member 320, forming a tight sealing interface, which can effectively prevent the gas from leaking from the gap between the outer connecting member 320 and the pipe body 100. A deformation groove 530 is provided on the outer wall of the first sealing member 510, so that the first sealing member 510 can be deformed to a certain extent when subjected to pressure, so as to better adapt to pipe bodies 100 of different sizes and shapes, and ensure the tightness and reliability of the seal.

[0081] By setting the second sealing member 520, the second sealing member 520 is located between the first sealing member 510 and the clamping member 400, and a protrusion 521 is provided on the inner wall of the second sealing member 520 for contacting the outer wall of the tube body 100. The protrusion 521 can form a plurality of contact points with the outer wall of the tube body 100, thereby increasing the surface area of ​​the seal and improving the sealing effect, thereby further preventing the gas from leaking from the gap between the tube body 100 and the clamping member 400.

[0082] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0083] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A gas bellows, characterized in that: include: tube body(100); A locking structure, comprising a joint (200) and a locking member (300) connected to the joint (200), wherein a mounting hole (370) is provided in the locking member (300); A clamping member (400) is disposed outside the tube body (100) and connected to the locking member (300); A sealing structure (500) is disposed between the joint (200), the locking member (300), the clamping member (400) and the tube body (100); A protective sheath (110) is further provided outside the tube body (100), and one end of the tube body (100) passes through the clamping member (400) and the sealing structure (500) in sequence and then enters the installation hole (370).

2. A gas bellows according to claim 1, characterized in that: The locking member (300) comprises a first body (310), and further comprises: External connecting member (320); Internal connecting member (330); An installation annular groove (340) is arranged between the outer connecting member (320) and the inner connecting member (330), and a docking member (350) adapted to the installation annular groove (340) is arranged on the pipe body (100); The external connecting member (320) is provided with an external thread, and the internal connecting member (330) is provided with a reinforcing member (360) that fits with the inner wall of the docking member (350).

3. A gas bellows according to claim 2, characterized in that: The reinforcing member (360) is arranged at the edge of the opening of the inner connecting member (330), and is composed of a plurality of bendable plates, and the plurality of plates are evenly distributed.

4. A gas bellows according to claim 3, characterized in that: The joint (200) comprises a second body (210), and further comprises: An internal thread, provided on the second body (210) and adapted to the external thread on the external connecting member (320); A supporting concave ring (230) is arranged on an end of the second body (210) away from the internal thread; The supporting concave ring (230) contacts the clamping member (400) and is used to support the clamping member (400).

5. A gas bellows according to claim 4, characterized in that: The clamping member (400) comprises a third body (410) and a plurality of abutment rings (420) arranged in the third body (410), the abutment rings (420) being engaged with the outer wall of the tube body (100), and a limiting ring (430) adapted to the supporting recessed ring (230) is arranged on the outer wall of the third body (410).

6. A gas bellows according to claim 5, characterized in that: The sealing structure (500) comprises: A first sealing member (510) comprises a ring body (511) and an inserting portion (512) disposed on the ring body (511), wherein the outer wall of the inserting portion (512) is in close contact with the inner wall of the external connecting member (320); A second sealing member (520) is disposed between the first sealing member (510) and the clamping member (400), and has an inner wall provided with a protrusion (521) in contact with an outer wall of the tube body (100); Wherein, a deformation groove (530) is provided on the outer wall of the first sealing member (510).

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