Loose joint assembly

Abstract

The utility model provides a loose joint assembly. The connector comprises an outer connector body and an inner connector body, a first through hole is formed in the outer connector body, a second through hole is formed in the inner connector body, and a supporting protrusion is arranged on the hole wall of the second through hole; one end of the outer joint is a connecting end, the connecting end is inserted into the second through hole, a mounting space is formed in the outer side wall of the connecting end, a sealing ring and two or more wear-resistant gaskets are mounted in the mounting space, the wear-resistant gaskets are distributed on the two sides of the supporting protrusion, and the sealing ring is extruded between the mounting space and the hole wall of the second through hole; therefore, the sealing between the outer joint and the inner joint is realized; the locking piece is positioned at the end part of the connecting end, and is used for locking the sealing ring and the wear-resistant gasket in the mounting space. According to the loose joint assembly of the structure, the machining process is simplified to the maximum extent, the manufacturing cost is greatly reduced, use is stable, and installation convenience is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a connector, in particular to a loose joint assembly. BACKGROUND

[0002] The common quick connector structure is like the utility model patent of a waist type hole steel ball locking realizes single-handed operation's quick connector of announcement number CN222122496U, it mainly includes female end shaft end cover, steel column locking cover, female end shaft end cover, steel ball locking cover between each other slip cover joint, still install female end main shaft cover in female end main shaft cover inside, be equipped with waist shape hole in female end main shaft cover one end, install steel ball in waist shape hole, steel ball is located between steel ball locking cover and female end main shaft cover.

[0003] When the male end main shaft cover is inserted into the female end main shaft cover, the steel ball will enter into the linear hole, at this time, the female end shaft end cover and the male end main shaft cover realize stable connection, on the contrary, push the steel ball locking cover, the steel ball locking cover loses the limiting action to the steel ball, then the male end main shaft cover can be smoothly pulled out from the female end shaft end cover.

[0004] Although the above type quick connector can realize the function of quick disassembly, but from the structure analysis, the male end main shaft cover and the female end main shaft cover have relatively complex shape structure, in addition, the steel ball, rubber ring and other accessories need to be installed in complex cooperation, and there is further simplification space. Utility model content

[0005] Therefore, the utility model aims at providing a loose joint assembly, which greatly simplifies the internal structure of the assembly, is convenient to install and has high use stability.

[0006] In order to solve the above technical problem, the technical scheme of the utility model is:

[0007] A loose joint assembly, comprising an outer connector and an inner connector, wherein the outer connector is provided with a first through hole, the inner connector is provided with a second through hole, and a supporting protrusion is arranged on the hole wall of the second through hole.

[0008] One end of the outer connector is a connecting end, the connecting end is inserted into the second through hole, a mounting space is arranged on the outer side wall of the connecting end, a sealing ring and two or more wear-resistant gaskets are installed in the mounting space, the wear-resistant gaskets are distributed on both sides of the supporting protrusion, and the sealing ring is pressed between the mounting space and the hole wall of the second through hole, so that the outer connector and the inner connector are sealed.

[0009] The locking member is arranged at the end of the connecting end, and is used for locking the sealing ring and the wear-resistant gaskets in the mounting space.

[0010] Through the technical scheme, in the processing link, only the outer joint and the inner joint need to be relatively simply machined; in use, the sealing ring and the wear-resistant gasket are sequentially placed into the installation space, the connecting end of the outer joint is inserted into the second penetrating hole of the inner joint, the supporting protrusion abuts against the wear-resistant gasket, then the other wear-resistant gasket is installed on the other side of the supporting protrusion, and finally the sealing ring and the wear-resistant gasket are locked by the locking member, so that the live joint assembly of the structure maximally simplifies the processing process, greatly reduces the manufacturing cost, is stable in use, and is high in installation convenience.

[0011] Preferably, the locking member comprises a flange, the flange is formed at the port of the connecting end, and the flange abuts against the corresponding wear-resistant gasket.

[0012] Through the technical scheme, only the port of the connecting end needs to be stamped to form the flange at the port of the connecting end, without the need to increase additional accessories, so that the installation is convenient and high in installation stability.

[0013] Preferably, a fixed plate is further arranged between the flange and the corresponding wear-resistant gasket.

[0014] Through the technical scheme, the flange first abuts against the fixed plate, and the fixed plate then abuts against the wear-resistant gasket, so that the effective contact area between the fixed plate and the wear-resistant gasket is effectively increased, and the installation stability is further improved; in addition, the flange can maximally reduce the extrusion damage to the wear-resistant gasket in the forming process.

[0015] Preferably, a first limiting step is arranged on the outer side wall of the connecting end, and the fixed plate is fixed between the first limiting step and the flange.

[0016] Through the technical scheme, when the fixed plate is installed into the connecting end, the flange will generate a thrust force on one side of the fixed plate, and the other side of the fixed plate will be limited by the first limiting step, so that the fixed plate is relatively accurately positioned, which helps to reduce the extrusion damage of the fixed plate to the wear-resistant gasket.

[0017] Preferably, a second limiting step is arranged on the outer side wall of the connecting end, and the second limiting step, the outer side wall of the connecting end and the flange jointly form the installation space.

[0018] Through the technical scheme, the installation space can be formed by simple machining, the processing difficulty is small, the installation convenience is high, and the use stability is strong.

[0019] Preferably, the sealing ring is located between the second limiting step and the corresponding wear-resistant gasket.

[0020] Through the above technical solution, the sealing ring is effectively positioned, and the sealing ring itself can create a sealing effect between the outer joint and the inner joint.

[0021] Preferably, a third limiting step is provided on the outer side wall of the outer connector;

[0022] When the connecting end is inserted into the second through hole, the end of the inner connector abuts against the third limiting step.

[0023] With the above technical solution, when the outer connector is inserted into the inner connector, the end of the inner connector will abut against the third limiting step, thereby effectively limiting the outer connector and ensuring that each outer connector and inner connector has accurate installation positioning.

[0024] Preferably, the outer tube wall of the external connector is provided with external threads.

[0025] The above technical solution facilitates the interconnection of external accessories and external connectors.

[0026] Preferably, the second through hole has an internal thread on the inner wall opposite to the outer connector.

[0027] The above technical solution facilitates the interconnection of external accessories and internal connectors.

[0028] Preferably, the second through hole with internal threads is further provided with a fourth limiting step, and a washer is provided on the fourth limiting step.

[0029] With the above technical solution, when the external component and the internal thread of the internal connector are engaged, the end of the external component will abut against the washer, which helps to improve installation stability. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure after installation in the embodiment;

[0031] Figure 2 for Figure 1 AA cross-section view;

[0032] Figure 3 for Figure 2 Enlarged view of part B;

[0033] Figure 4 This is a schematic diagram of the external connector.

[0034] Reference signs: 1, outer joint; 2, inner joint; 3, first through hole; 4, second through hole; 5, supporting protrusion; 6, connecting end; 7, mounting space; 8, sealing ring; 9, wear-resistant gasket; 10, locking piece; 101, flange; 11, fixed plate; 12, first limiting step; 13, second limiting step; 14, third limiting step; 15, fourth limiting step; 16, external thread; 17, internal thread; 18, gasket. DETAILED DESCRIPTION

[0035] The specific embodiments of the utility model are further described in detail below in combination with the drawings, so that the technical scheme of the utility model is easier to understand and master.

[0036] A loose joint assembly comprises an outer joint 1 and an inner joint 2.

[0037] The outer joint 1 is provided with a first through hole 3, and one end of the outer joint 1 is a connecting end 6 which is inserted into the second through hole 4. The inner joint 2 is provided with a second through hole 4. The first through hole 3 and the second through hole 4 are in communication with each other.

[0038] A supporting protrusion 5 is arranged on the hole wall of the second through hole 4. The supporting protrusion 5 is preferably a circular annular protrusion. The circular annular protrusion and the second through hole 4 are concentric with each other.

[0039] A mounting space 7 is arranged on the outer side wall of the connecting end 6, and a sealing ring 8 and two or more wear-resistant gaskets 9 are mounted in the mounting space 7. In the embodiment, the number of wear-resistant gaskets 9 is two, and the two wear-resistant gaskets 9 are distributed on the two sides of the supporting protrusion 5. The sealing ring 8 is pressed between the mounting space 7 and the hole wall of the second through hole 4, so as to realize sealing between the outer joint 1 and the inner joint 2. Preferably, the material of the wear-resistant gasket 9 is polytetrafluoroethylene, which has certain self-lubricating performance.

[0040] A locking piece 10 is further arranged at the end of the connecting end 6, which is used to lock the sealing ring 8 and the wear-resistant gasket 9 in the mounting space 7. Specifically, the locking piece 10 comprises a flange 101 which is formed by stamping. The flange 101 is formed at the port of the connecting end 6, and abuts against the corresponding wear-resistant gasket 9.

[0041] A second limiting step 13 is arranged on the outer side wall of the connecting end 6, and the second limiting step 13, the outer side wall of the connecting end 6 and the flange 101 jointly form the mounting space 7. The sealing ring 8 is located between the second limiting step 13 and the corresponding wear-resistant gasket 9.

[0042] A fixed plate 11 is further arranged between the flange 101 and the corresponding wear-resistant gasket 9.

[0043] The first limiting step 12 is arranged on the outer wall of the connecting end 6, and the fixing plate 11 is fixed between the first limiting step 12 and the flange 101.

[0044] The third limiting step 14 is arranged on the outer wall of the outer joint 1, and the end of the inner joint 2 abuts against the third limiting step 14 when the connecting end 6 is inserted into the second through hole 4.

[0045] In addition, in order to further improve the flexibility of the joint assembly and the external components, the outer thread 16 is arranged on the outer wall of the outer joint 1, and the inner thread 17 is arranged on the inner wall of the second through hole 4.

[0046] The fourth limiting step 15 is arranged on the wall of the second through hole 4 with the inner thread 17, and the gasket 18 is arranged on the fourth limiting step 15, and the gasket 18 is made of PVC.

[0047] The installation process of the joint assembly is as follows: the sealing ring 8 and the wear-resistant gasket 9 are sequentially sleeved into the installation space 7, the connecting end 6 of the outer joint 1 is inserted into the second through hole 4 of the inner joint 2, until the supporting protrusion 5 abuts against the wear-resistant gasket 9, the wear-resistant gasket 9 is pressed against the second limiting step 13, the third limiting step 14 abuts against the end of the inner joint 2, then another wear-resistant gasket 9 is sleeved into the connecting end 6, the wear-resistant gasket 9 abuts against the supporting protrusion 5, the fixing plate 11 is also sleeved into the connecting end 6, the fixing plate 11 abuts against the first limiting step 12, the end of the connecting end 6 is stamped by a pressing machine, so that the flange 101 is formed on the end of the connecting end 6, the flange 101 abuts against the fixing plate 11, and the fixing plate 11 stably fixes the wear-resistant gasket 9 on the connecting end 6.

[0048] Of course, the above is only a typical example of the present application, and in addition to this, the present application can have other various specific implementation manners, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.

Claims

1. A union assembly, comprising an outer connector (1) and an inner connector (2), wherein the outer connector (1) has a first through hole (3) and the inner connector (2) has a second through hole (4), characterized in that: The second through hole (4) has a support protrusion (5) on its hole wall; One end of the external connector (1) is a connecting end (6), which is inserted into the second through hole (4). An installation space (7) is provided on the outer side wall of the connecting end (6). A sealing ring (8) and two or more wear-resistant gaskets (9) are installed in the installation space (7). The wear-resistant gaskets (9) are distributed on both sides of the support protrusion (5). The sealing ring (8) is pressed between the installation space (7) and the hole wall of the second through hole (4), thereby achieving a seal between the external connector (1) and the internal connector (2). It also includes a locking member (10) located at the end of the connecting end (6), the locking member (10) being used to lock the sealing ring (8) and the wear-resistant gasket (9) within the installation space (7).

2. The live joint assembly according to claim 1, characterized in that: The locking member (10) includes a flange (101) formed at the port of the connecting end (6) and the flange (101) abuts against the corresponding wear-resistant pad (9).

3. A live joint assembly according to claim 2, characterized in that: It also includes a fixing plate (11) located between the flange (101) and the corresponding wear-resistant pad (9).

4. A live joint assembly according to claim 3, characterized in that: The outer side wall of the connecting end (6) is provided with a first limiting step (12), and the fixing plate (11) is fixed between the first limiting step (12) and the flange (101).

5. A live joint assembly according to claim 2, characterized in that: The outer wall of the connecting end (6) is provided with a second limiting step (13), and the second limiting step (13), the outer wall of the connecting end (6), and the flange (101) together form the installation space (7).

6. A live joint assembly according to claim 5, characterized in that: The sealing ring (8) is located between the second limiting step (13) and the corresponding wear-resistant gasket (9).

7. A live joint assembly according to any one of claims 1-6, characterized in that: The outer wall of the outer connector (1) is provided with a third limiting step (14); When the connecting end (6) is inserted into the second through hole (4), the end of the inner connector (2) abuts against the third limiting step (14).

8. A live joint assembly according to any one of claims 1-5, characterized in that: The outer pipe wall of the external connector (1) is provided with an external thread (16).

9. A live joint assembly according to any one of claims 1-5, characterized in that: The second through hole (4) has an internal thread (17) on its inner wall away from the outer connector (1).

10. A live joint assembly according to claim 9, characterized in that: The second through hole (4) with internal thread (17) is also provided with a fourth limiting step (15) on the hole wall, and a washer (18) is provided on the fourth limiting step (15).

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