A sealing ring quick change mechanism of a pipeline joint airtight test tool

Abstract

The utility model relates to advanced manufacturing and automation technical field, concretely relates to a pipeline joint air tight test frock sealing washer quick change mechanism, include: the base with ring groove in middle portion of apron, and the outer groove wall of ring groove is equipped with sealing washer groove, apron with base between is provided with at least one set of positioning guide structure, and at least part of positioning guide structure sets up on apron, and the remaining part of positioning guide structure sets up on base, and positioning guide structure locks and dismounts through quick -lock structure. In the utility model, positioning is ensured through positioning guide structure, and convenient locking and dismounting are realized in combination with quick -lock structure, and sealing washer replacement does not need to use screw locking work piece, reduces the time of sealing washer replacement in production process, reduces downtime, improves production efficiency, improves replacement convenience.

Description

Technical Field

[0001] This utility model relates to the field of advanced manufacturing and automation technology. Specifically, it relates to a quick-change mechanism for sealing rings in a pipe joint airtightness testing fixture, which is mainly used for air sealing during airtightness testing of male connectors in cooling pipe joints of new energy vehicle batteries. Background Technology

[0002] Currently, the airtightness test for male connectors on the market generally uses an air-sealing method. The sealing of the workpiece mainly relies on screw tightening fixtures to compress the sealing ring to achieve a sealing effect. However, since the sealing ring itself is a consumable component, it is prone to wear or aging during frequent use, thus requiring frequent replacement. Each replacement of the sealing ring is not only complex and time-consuming, severely impacting testing efficiency, but also requires a high degree of concentricity during installation. Improper installation can easily lead to a poor seal, resulting in unstable airtightness test results, or even test failure, affecting overall production quality and testing reliability. Utility Model Content

[0003] In view of this, the present invention provides a quick-change mechanism for the sealing ring of a pipe joint airtightness testing fixture, which aims to solve the technical problem of low replacement efficiency of the sealing ring of the airtightness testing fixture and difficulty in ensuring the concentricity requirement of the installation.

[0004] This utility model discloses a quick-change mechanism for a sealing ring in a pipe joint airtightness testing fixture, comprising a cover plate and a base with an annular groove in the middle, wherein a sealing ring groove is provided on the outer wall of the annular groove; at least one set of positioning guide structures is provided between the cover plate and the base, wherein at least a portion of the positioning guide structure is provided on the cover plate and the remaining portion of the positioning guide structure is provided on the base, and the positioning guide structure is locked and disassembled by a quick-locking structure.

[0005] Preferably, the outer wall of the annular groove is provided with an annular stepped portion, and the sealing ring groove is formed between the cover plate and the annular stepped portion.

[0006] Preferably, the positioning and guiding structure is arranged in two symmetrical sets.

[0007] Preferably, the positioning guide structure includes a positioning guide block and a positioning guide groove, with at least a portion of the positioning guide block extending into the positioning guide groove; one of the positioning guide block and the positioning guide groove is disposed on the base, and the other is disposed on the cover plate.

[0008] Preferably, the quick-release structure includes a quick-release pin and a positioning hole, the positioning hole penetrating the positioning guide structure, and the pin shaft of the quick-release pin passing through the positioning hole and being locked and disassembled by a spring plunger.

[0009] Preferably, at least a portion of the positioning hole is disposed on the positioning guide block, and the remaining portion is disposed on the positioning guide groove.

[0010] Preferably, the port portion of the positioning hole that communicates with the outside is an arc surface.

[0011] Preferably, the sealing ring groove is in communication with the annular groove.

[0012] Preferably, the base is provided with a vent hole that communicates with the annular groove.

[0013] Preferably, the base is provided with a compressed air inlet, and the compressed air inlet passes through the annular groove and communicates with the vent hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are that the cover plate and the base are accurately positioned through the positioning guide structure, and the quick-lock structure enables convenient locking and disassembly. There is no need to use screws to lock the workpiece for sealing ring replacement, which reduces the time for sealing ring replacement during the production process, reduces downtime, improves production efficiency, and improves replacement convenience. Attached Figure Description

[0015] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A three-dimensional structural schematic diagram of a quick-change sealing ring mechanism for a pipe joint airtightness testing fixture provided for an embodiment of this utility model; Figure 2 A three-dimensional structural diagram of the cover plate and base provided in an embodiment of this utility model; Figure 3 A cross-sectional view of the base provided in an embodiment of this utility model; Figure 4 A cross-sectional view of the cover plate and base provided in an embodiment of this utility model; Figure 5 A three-dimensional structural diagram of the quick-release pin provided in an embodiment of this utility model.

[0016] In the diagram: 1. Cover plate; 11. Clearance area; 2. Base; 21. Protruding post; 211. Vent hole; 22. Annular groove; 221. Annular step; 23. Sealing ring groove; 25. Compressed air inlet; 3. Positioning guide structure; 31. Positioning guide block; 32. Positioning guide groove; 41. Quick release pin; 411. Unlock button; 42. Positioning hole; 421. Arc surface; 43. Spring plunger. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0018] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0019] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] Example 1

[0022] Combination Figure 1 , Figure 2 and Figure 4 As shown in the figure, the quick-change mechanism for the sealing ring of the pipe joint airtightness test fixture provided in this embodiment includes a cover plate 1 and a base 2 with an annular groove 22 in the middle. The outer groove wall of the annular groove 22 is provided with a sealing ring groove 23. At least one set of positioning guide structures 3 is provided between the cover plate 1 and the base 2. At least a part of the positioning guide structure 3 is provided on the cover plate 1, and the remaining part of the positioning guide structure 3 is provided on the base 2. The positioning guide structure 3 is locked and disassembled by a quick-locking structure.

[0023] Specifically, a sealing ring is installed in the sealing ring groove 23. The cover plate 1 is locked and disassembled with the base 2 through the positioning guide structure 3 and the quick-locking structure. When the cover plate 1 and the base 2 are locked, the sealing ring is fixed in the sealing ring groove 23. When the cover plate 1 and the base 2 are opened, the sealing ring in the sealing ring groove 23 can be quickly replaced. At the same time, since the sealing ring groove 23 is located on the outer groove wall of the annular groove 22 in the base 2, the sealing ring is exposed to the outside when the base 2 is opened, which facilitates replacement.

[0024] Specifically, the base 2 has a protruding post 21 in the middle, an annular groove 22 is provided on the outer periphery of the protruding post 21, and the cover plate 1 has a clearance position 11 in the middle to avoid the protruding post 21.

[0025] Understandably, the positioning guide structure 3 guides the cover plate 1 and base 2 along a predetermined trajectory during installation, reducing deviations and ensuring accurate relative positioning, thus meeting the concentricity requirements for the installation of the cover plate 1 and base 2. Simultaneously, it ensures the relative position between the cover plate 1 and base 2 is fixed, preventing movement or skew during processing, assembly, or use, and guaranteeing relative positional accuracy. The positioning guide structure 3 ensures accurate positioning between the cover plate 1 and base 2, and combined with the quick-lock structure, enables convenient locking and disassembly, improving assembly efficiency and structural stability, and facilitating subsequent maintenance and replacement of the sealing ring.

[0026] Preferably, the outer wall of the annular groove 22 is provided with an annular step portion 221, and a sealing groove 23 is formed between the cover plate 1 and the annular step portion 221.

[0027] Specifically, the sealing ring groove 23 is formed by the annular stepped portion 221 of the outer groove wall of the annular groove 22 and the side adjacent to the cover plate 1, that is, the sealing ring is set on the annular stepped portion 221. After the cover plate 1 and the base 2 are locked together by the positioning guide structure 3 and the quick-locking structure, the sealing ring is fixed. After the cover plate 1 and the base 2 are opened, the sealing ring can be quickly replaced.

[0028] Preferably, the positioning guide structure 3 is symmetrically arranged in two sets.

[0029] Understandably, the two sets of symmetrical positioning and guiding structures 3 can ensure uniform force distribution, avoid deviation, and improve the overall balance and stability of the structure.

[0030] Preferably, the positioning guide structure 3 includes a positioning guide block 31 and a positioning guide groove 32, with at least a portion of the positioning guide block 31 extending into the positioning guide groove 32; one of the positioning guide block 31 and the positioning guide groove 32 is disposed on the base 2, and the other is disposed on the cover plate 1.

[0031] It is understood that at least a portion of the positioning guide block 31 extends into the positioning guide groove 32 to form a tight fit, thereby achieving positioning and guidance between the base 2 and the cover plate 1, thus ensuring stability and accuracy during installation and operation.

[0032] Preferred, combined Figure 2 and 5 As shown, the quick-release structure includes a quick-release pin 41 and a positioning hole 42. The positioning hole 42 passes through the positioning guide structure 3, and the pin shaft of the quick-release pin 41 passes through the positioning hole 42 and is locked and disassembled by the spring plunger 43.

[0033] Specifically, the quick-release pin 41, also known as a quick-pull precision positioning pin, is locked and disassembled via a spring plunger 43, or by the extension and retraction of a spherical self-locking ball. The quick-release pin 41 has an unlocking button 411; pressing the unlocking button 411 retracts the spherical self-locking ball, allowing the quick-release pin 41 to be inserted or removed. When one end of the quick-release pin 41 is inserted into and passes through the positioning hole 42 of the positioning guide structure 3, the spherical self-locking ball resets, thus locking and securing the cover plate 1 and the base 2.

[0034] Preferably, at least a portion of the positioning hole 42 is disposed on the positioning guide block 31, and the remaining portion is disposed on the positioning guide groove 32. A through channel is formed between the positioning guide block 31 and the positioning hole 42 on the positioning guide groove 32, thereby ensuring the insertion and removal operation of the quick release pin 41.

[0035] Preferably, the port portion of the positioning hole 42 that communicates with the outside is an arc surface 421. The arc surface structure can better guide and accommodate the quick-release pin 41, reducing friction and resistance during assembly and making the connection smoother. Secondly, the arc surface structure can disperse stress, improving durability and impact resistance.

[0036] Preferred, combined Figure 3 As shown, the base 2 has a vent 211 communicating with the annular groove 22, and the vent 211 is located inside the protruding post 21 in the middle of the base 2. The base 2 has a compressed air inlet 25, which passes through the annular groove 22 and communicates with the vent 211. The sealing ring groove 23 communicates with the annular groove 22.

[0037] Specifically, the compressed air inlet 25 provides a source of compressed air, and the vent 211 communicates with the annular groove 22 to allow gas flow. Furthermore, through the synergistic effect of structures such as the annular groove 22, the vent 211, the compressed air inlet 25, and the protruding column 21, gas transmission, pressure balance, and stable connection of components are achieved.

[0038] Specifically, the working principle of the quick-change mechanism for the sealing ring of the pipe joint airtightness testing fixture in this embodiment is as follows: When the production line needs to replace the seals: Press the unlock button 411 on the quick-release pin 41. The spherical self-locking ball retracts. Lift the quick-release pin 41 upwards and remove it from the positioning guide structure 3. Then, remove the cover plate 1 and manually remove the sealing ring from the sealing ring groove 23. Replace it with a new sealing ring and install it into the sealing ring groove 23. Holding the cover plate 1, align the positioning guide block 31 and insert it into the positioning guide groove 32. Remove the quick-release pin 41 and press the unlock button 411. After the spherical self-locking ball retracts, align the quick-release pin 41 with the positioning hole 42 in the positioning guide block 31 and the positioning guide groove 32 and insert it. Release the unlock button 411, and the spherical self-locking ball will reset and lock in place. The entire quick-change process for the sealing ring is now complete.

[0039] It will be understood by those skilled in the art that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-change mechanism for sealing rings in a pipe joint airtightness testing fixture, comprising a cover plate (1) and a base (2) having an annular groove (22) in the middle, characterized in that, The outer wall of the annular groove (22) is provided with a sealing ring groove (23); at least one set of positioning guide structures (3) is provided between the cover plate (1) and the base (2), at least part of the positioning guide structure (3) is provided on the cover plate (1), the remaining part of the positioning guide structure (3) is provided on the base (2), and the positioning guide structure (3) is locked and disassembled by a quick-locking structure.

2. The quick-change mechanism for the sealing ring of the pipe joint airtightness testing fixture according to claim 1, characterized in that, The outer wall of the annular groove (22) is provided with an annular step portion (221), and the sealing ring groove (23) is formed between the cover plate (1) and the annular step portion (221).

3. The quick-change mechanism for the sealing ring of the pipe joint airtightness testing fixture according to claim 1, characterized in that, The positioning and guiding structure (3) is symmetrically arranged in two sets.

4. A quick-change mechanism for the sealing ring of a pipeline joint airtightness testing fixture according to claim 1 or 3, characterized in that, The positioning guide structure (3) includes a positioning guide block (31) and a positioning guide groove (32), at least a portion of the positioning guide block (31) extends into the positioning guide groove (32); one of the positioning guide block (31) and the positioning guide groove (32) is disposed on the base (2), and the other is disposed on the cover plate (1).

5. The quick-change mechanism for the sealing ring of a pipe joint airtightness testing fixture according to claim 4, characterized in that, The quick-release structure includes a quick-release pin (41) and a positioning hole (42). The positioning hole (42) passes through the positioning guide structure (3). The pin shaft of the quick-release pin (41) passes through the positioning hole (42) and is locked and disassembled by a spring plunger (43).

6. The quick-change mechanism for the sealing ring of a pipe joint airtightness testing fixture according to claim 5, characterized in that, At least a portion of the positioning hole (42) is disposed on the positioning guide block (31), and the remaining portion is disposed on the positioning guide groove (32).

7. The quick-change mechanism for the sealing ring of a pipe joint airtightness testing fixture according to claim 6, characterized in that, The port portion of the positioning hole (42) that communicates with the outside is an arc surface (421).

8. The quick-change mechanism for the sealing ring of the pipe joint airtightness testing fixture according to claim 1, characterized in that, The sealing ring groove (23) is connected to the annular groove (22).

9. The quick-change mechanism for the sealing ring of a pipe joint airtightness testing fixture according to claim 1, characterized in that, The base (2) is provided with a vent (211) that communicates with the annular groove (22).

10. The quick-change mechanism for the sealing ring of a pipe joint airtightness testing fixture according to claim 9, characterized in that, The base (2) is provided with a compressed air inlet (25), and the compressed air inlet (25) passes through the annular groove (22) and communicates with the vent (211).

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