Buckle type gas pipe joint

Abstract

The utility model relates to the technical field of air pipe joints, in particular to a buckle type air pipe joint which comprises a connecting sleeve, a locking mechanism and a fixing mechanism, a first limiting groove and a second limiting groove are formed in the inner circumferential face of the connecting sleeve, and the locking mechanism comprises a locking sleeve and a circular ring clamp spring. The circular ring clamp spring is fixed in the first limiting groove through a fixing mechanism, the locking sleeve is connected in the connecting sleeve in a sliding mode, a limiting block is arranged on the locking sleeve, the limiting block is located in the second limiting groove, and the locking sleeve abuts against the circular ring clamp spring; the pressing ring is pushed to enable the locking sleeve to move in the connecting sleeve to extrude the circular ring clamp spring, the circular ring clamp spring is expanded, the air supply pipe is inserted and connected, at the moment, the pressing ring is loosened, the locking sleeve moves upwards, the circular ring clamp spring recovers deformation, meanwhile, a limiting block on the locking sleeve is clamped in a second limiting groove, and insertion of the air pipe is completed.

Description

Technical Field

[0001] The present application relates to the technical field of trachea joints, and in particular to a snap-on trachea joint. Background Art

[0002] The snap-on air pipe joint can quickly connect pipe fittings and has the advantages of flexible use, good sealing performance and stable connection. Therefore, the snap-on air pipe joint is widely used in pneumatic systems.

[0003] Traditional trachea joints require the trachea and the joint to be threaded together. The trachea is difficult to install in a narrow space. Long-term use may cause the trachea and the joint to be tightly adhered and difficult to remove, resulting in damage to the trachea, thereby reducing the air tightness of the trachea joint, thereby reducing the use effect of the trachea joint. For this reason, we designed a snap-on trachea joint. Utility Model Content

[0004] A snap-on trachea connector provided in an embodiment of the present application can solve the technical problem that the trachea is difficult to install in a narrow space, and long-term use may cause the trachea to stick tightly to the connector and be difficult to disassemble, resulting in damage to the trachea.

[0005] The embodiment of the present application provides a bayonet-type air pipe joint including a connecting sleeve, a locking mechanism and a fixing mechanism, wherein a first limiting groove and a second limiting groove are provided on the inner circumferential surface of the connecting sleeve, the locking mechanism includes a locking sleeve and a circular retaining spring, the circular retaining spring is fixed in the first limiting groove by the fixing mechanism, the locking sleeve is slidably connected in the connecting sleeve, a limiting block is provided on the locking sleeve, the limiting block is located in the second limiting groove, and the locking sleeve abuts against the circular retaining spring;

[0006] The above-mentioned technical solution in the embodiment of the present application pushes the pressing ring to move the locking sleeve in the connecting sleeve to squeeze the circular retaining spring when inserting and connecting the trachea, so that the inner diameter of the circular retaining spring becomes large enough to allow the trachea to pass through, and then the pressing ring is released to complete the trachea clamping.

[0007] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0008] 1. The present application pushes the pressing ring to move the locking sleeve in the connecting sleeve to squeeze the circular retaining spring, causing the circular retaining spring to deform and complete the insertion and removal of the trachea.

[0009] 2. The present application provides a plurality of anti-skid grooves on the connecting sleeve and a sealing ring on the rubber ring to prevent the connecting sleeve from sliding and affecting the air pipe connection when the pressing ring is pushed, while ensuring the sealing performance.

[0010] In some embodiments, a folded edge is provided on the circular retaining spring, the folded edge is connected to the first limiting groove, and the folded edge is integrally formed with the circular retaining spring.

[0011] In some embodiments, a pressing ring is provided at one end of the locking sleeve away from the annular retaining spring.

[0012] In some embodiments, the fixing mechanism includes a fixing ring seat and a rubber ring, one end of the fixing ring seat is fixedly connected to an end of the connecting sleeve away from the pressing ring, and the fixing ring seat abuts against the folded edge, and the rubber ring is arranged on the end of the fixing ring seat away from the folded edge.

[0013] In some embodiments, a clamping block is provided at one end of the fixing ring seat away from the annular retaining spring, a clamping groove is provided on the rubber ring, and the clamping block is clamped in the clamping groove.

[0014] In some embodiments, a plurality of anti-slip grooves are evenly arranged on the connecting sleeve.

[0015] In some embodiments, a sealing ring is provided on the rubber ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic diagram of the separation structure of a snap-on trachea connector provided in an embodiment of the present application;

[0018] Figure 2 An overall schematic diagram of a snap-on tracheal joint provided in an embodiment of the present application;

[0019] Figure 3 A cross-sectional view of a snap-on trachea connector provided in an embodiment of the present application;

[0020] Figure 4 for Figure 3 Enlarged view of part A.

[0021] Among them, the figure marks in the figure are: 1. connecting sleeve; 12. first limiting groove; 13. second limiting groove; 14. anti-slip groove; 2. locking mechanism; 21. locking sleeve; 211. limiting block; 212. pressing ring; 22. circular retaining spring; 221. folding edge; 3. fixing mechanism; 31. fixing ring seat; 312. clamping block; 32. rubber ring; 321. clamping groove; 322. sealing ring. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0028] It should be noted that, in the present application, words such as "in the present embodiment", "exemplarily", "for example", etc. are used to indicate examples, illustrations or explanations. Any embodiment or design described in the present application as "in the present embodiment", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in the present embodiment", "exemplarily", "for example", etc. is intended to present related concepts in a concrete way, meaning that specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the above words in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0029] The bayonet connector combines the advantages of quick connectors and threaded connectors. It is easy to install and disassemble, and has high sealing performance. It adopts the bayonet connection method, and the connection is achieved through the close fit of the ferrule and the air pipe. This connector is suitable for pneumatic systems in medium and low pressure and general working environments.

[0030] The trachea joint in the related technology requires the trachea and the joint to be threadedly connected. The trachea is difficult to install in a narrow space. Long-term use may cause the trachea and the joint to stick tightly and be difficult to disassemble, resulting in damage to the trachea, thereby reducing the air tightness of the trachea joint, thereby reducing the use effect of the trachea joint.

[0031] Based on this, in order to improve the problem in the related art that the trachea is difficult to install in a small space, and long-term use may cause the trachea to stick tightly to the joint and be difficult to disassemble, resulting in damage to the trachea, the embodiment of the present application provides the following solution.

[0032] See also Figures 1 to 4 A snap-on trachea connector includes a connecting sleeve 1, a locking mechanism 2 and a fixing mechanism 3. The connection or separation of the snap-on trachea connector and the trachea is achieved through the locking mechanism 2. The fixing mechanism 3 is used to fix the connecting sleeve 1 and the locking mechanism 2.

[0033] See also Figures 1 to 4The locking mechanism 2 includes a locking sleeve 21 and a circular retaining spring 22. The circular retaining spring 22 is fixed in the first limiting groove 12 by a fixing mechanism 3. The locking sleeve 21 is slidably connected in the connecting sleeve 1. A limiting block 211 is provided on the locking sleeve 21. The limiting block 211 is located in the second limiting groove 13. The locking sleeve 21 abuts against the circular retaining spring 22. A folded edge 221 is provided on the circular retaining spring 22. The folded edge 221 is connected to the first limiting groove 12, and the folded edge 221 is integrally formed with the circular retaining spring 22. A pressing ring 212 is provided at one end of the locking sleeve 21 away from the circular retaining spring 22. A plurality of anti-slip grooves 14 are evenly provided on the connecting sleeve 1.

[0034] With such arrangement, when the trachea is connected, the locking sleeve 21 is moved in the connecting sleeve 1 by pushing the pressing ring 212, and the locking sleeve 21 stretches the annular retaining spring 22 from the inside to the outside, so as to facilitate the insertion of the trachea into the annular retaining spring 22. At this time, the pressing ring 212 is released, and the locking sleeve 21 is reset, so that the annular retaining spring 22 can be contracted to clamp the trachea. When the trachea needs to be pulled out, the pressing ring 212 is pushed to stretch the annular retaining spring 22 again.

[0035] The effect of this arrangement is that the expansion or contraction of the circular retaining spring 22 is controlled by the pressing ring 212, corresponding to the release and clamping of the trachea, which can make the insertion and removal or fixation of the trachea simple and convenient, while preventing the trachea from being damaged due to the trachea and the joint being tightly adhered to each other for a long time and difficult to disassemble.

[0036] The fixing mechanism 3 includes a fixing ring seat 31 and a rubber ring 32. One end of the fixing ring seat 31 is fixedly connected to the end of the connecting sleeve 1 away from the pressing ring 212, and the fixing ring seat 31 abuts against the folded edge 221. The rubber ring 32 is arranged on the end of the fixing ring seat 31 away from the folded edge 221. A clamping block 312 is arranged on the end of the fixing ring seat 31 away from the circular retaining ring 22. A clamping groove 321 is opened on the rubber ring 32. The clamping block 312 is clamped in the clamping groove 321. A sealing ring 322 is arranged on the rubber ring 32.

[0037] With such arrangement, by pushing the pressing ring 212, the locking sleeve 21 moves in the connecting sleeve 1 to squeeze the circular retaining spring 22 and stretch the circular retaining spring 22. At this time, the fixed ring seat 31 abuts against the folded edge 221 on the circular retaining spring 22 to prevent the circular retaining spring 22 from moving. When the air pipe is connected for ventilation, the rubber ring 32 connected to the fixed ring seat 31 prevents the gas in the air pipe from leaking.

[0038] The effect of such a setting is that when air pipes of different thicknesses need to be connected, the fixed ring seat 31 abuts against the folded edge 221 on the circular retaining ring 22 to prevent the circular retaining ring 22 from moving, so that the air pipes can be connected normally, which increases the stability of the device. The sealing ring 322 on the rubber ring 32 can ensure the sealing of the device, so that the device can be used normally.

[0039] From the above, we can see that the working principle of this application is as follows:

[0040] When the trachea is connected, the pressing ring 212 is pushed to make the locking sleeve 21 move in the connecting sleeve 1 to squeeze the circular retaining spring 22, so that the circular retaining spring 22 is stretched open, and the air supply pipe is inserted and connected. At this time, the pressing ring 212 is released, and the locking sleeve 21 moves upward, so that the circular retaining spring 22 recovers its deformation. At the same time, the limiting block 211 on the locking sleeve 21 is clamped in the second limiting groove 13, and the insertion of the trachea is completed. When the trachea needs to be pulled out, the pressing ring 212 is pushed to make the locking sleeve 21 move in the connecting sleeve 1 to squeeze the circular retaining spring 22, so that the circular retaining spring 22 is deformed and the inner diameter becomes larger, and the trachea is pulled out;

[0041] When the pressing ring 212 is pushed to make the locking sleeve 21 move in the connecting sleeve 1, the circular retaining spring 22 is squeezed and the circular retaining spring 22 is stretched open. At this time, the fixed ring seat 31 abuts against the folded edge 221 on the circular retaining spring 22 to prevent the circular retaining spring 22 from moving. When the air pipe is connected for ventilation, the rubber ring 32 connected to the fixed ring seat 31 prevents the gas in the air pipe from leaking.

[0042] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A snap-on trachea joint, characterized in that: The invention comprises a connecting sleeve (1), a locking mechanism (2) and a fixing mechanism (3); a first limiting groove (12) and a second limiting groove (13) are provided on the inner circumferential surface of the connecting sleeve (1); the locking mechanism (2) comprises a locking sleeve (21) and a circular retaining spring (22); the circular retaining spring (22) is fixed in the first limiting groove (12) by the fixing mechanism (3); the locking sleeve (21) is slidably connected in the connecting sleeve (1); a limiting block (211) is provided on the locking sleeve (21); the limiting block (211) is located in the second limiting groove (13); the locking sleeve (21) abuts against the circular retaining spring (22).

2. A snap-on trachea joint according to claim 1, characterized in that: The annular retaining spring (22) is provided with a folded edge (221), the folded edge (221) is connected to the first limiting groove (12), and the folded edge (221) and the annular retaining spring (22) are integrally formed.

3. A snap-on air pipe joint according to claim 2, characterized in that: A pressing ring (212) is provided at one end of the locking sleeve (21) away from the annular retaining spring (22).

4. A snap-on air pipe joint according to claim 3, characterized in that: The fixing mechanism (3) comprises a fixing ring seat (31) and a rubber ring (32); one end of the fixing ring seat (31) is fixedly connected to an end of the connecting sleeve (1) away from the pressing ring (212), and the fixing ring seat (31) abuts against the folded edge (221); and the rubber ring (32) is arranged on an end of the fixing ring seat (31) away from the folded edge (221).

5. A snap-on air pipe joint according to claim 4, characterized in that A clamping block (312) is provided at one end of the fixing ring seat (31) away from the annular retaining spring (22), a clamping groove (321) is provided on the rubber ring (32), and the clamping block (312) is clamped in the clamping groove (321).

6. The snap-on air pipe joint according to claim 1, characterized in that: The connecting sleeve (1) is evenly provided with a plurality of anti-slip grooves (14).

7. The snap-on air pipe joint according to claim 5, characterized in that: A sealing ring (322) is provided on the rubber ring (32).

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