A bellows detection jig

CN224608616UActive Publication Date: 2026-08-07DONGGUAN KESIYU LIQUID COOLING TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN KESIYU LIQUID COOLING TECHNOLOGY CO LTD
Filing Date
2025-10-29
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0003]在测试过程中,需要对波纹管进行准确固定和定位、为波纹管提供准确的连接接口,因此需要使用检测治具辅助波纹管进行测试,然而现有使用的检测治具存在以下问题:(1)笨重,整体重量重;(2)收纳不便,占用较多空间;(3)长度调节不够便捷,不能根据波纹管的长度规格快速调整至合适的长度

Benefits of technology

[0009]将不锈钢波纹管产品的两端分别置于第一放置槽和第二放置槽内,通过滑动第一滑块和第二滑块能够快速调节第一装料板与第二装料板的间距,间距调节便捷,从而能够适应多种长度规格的不锈钢波纹管产品;该检测治具仅由滑轨组件、第一装料板、第二装料板、流体进入板和流体排出板等结构组成,整套检测治具装夹产品后整体重量轻,降低员工作业强度;该检测治具收纳方便,可将多个波纹管检测治具堆叠起来存放,更节约空间、更整齐。

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Abstract

The utility model discloses a corrugated pipe detection jig, including slide rail subassembly, first charging plate, second charging plate, fluid access board and fluid discharge board, the slide rail subassembly includes guide rail, first sliding block and second sliding block, a plurality of first placement grooves are equipped with on first charging plate, a plurality of second placement grooves are equipped with on second charging plate, a plurality of first corrugated pipe joints are equipped with on fluid access board, a plurality of second corrugated pipe joints are equipped with on fluid discharge board, and the both ends bottom of fluid access board and fluid discharge board is provided with the stacking support foot, the bottom of universal ball is equipped with on stacking support foot, and the both ends top of fluid access board and fluid discharge board is provided with stacking recess. The whole weight of the complete set of jig is light after clamping the product, can be stacked and stored, is convenient to store, can adapt to the stainless steel corrugated pipe product of multiple length specifications.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe production technology, and in particular to a corrugated pipe inspection fixture. Background Technology

[0002] Brazing of stainless steel corrugated pipes is a high-precision joining process. By heating and melting the brazing filler metal, a weld is formed at the contact surface between the stainless steel corrugated pipe and the joint or other components, thus achieving a strong and sealed connection. The brazed stainless steel corrugated pipes then undergo a series of tests to determine if they meet quality requirements, such as helium testing, high-pressure nitrogen testing, and particle size analysis. Helium testing involves filling the corrugated pipe with pressurized helium gas and placing it in a sealed detection chamber. If a leak is found, helium gas will permeate into the detection chamber, and a helium mass spectrometer can capture the helium molecules to quantify the leakage rate. High-pressure nitrogen testing involves filling the corrugated pipe with high-pressure nitrogen gas and maintaining it for a certain period, observing whether the pressure drops, and simultaneously checking for deformation, bulging, or other defects. Particle size analysis involves connecting the corrugated pipe to a particle size analyzer, flushing the hollow channels inside the corrugated pipe with a clean test solution, and simultaneously measuring the particle concentration in the flushing solution.

[0003] During the testing process, it is necessary to accurately fix and position the corrugated pipe and provide accurate connection interfaces for the corrugated pipe. Therefore, it is necessary to use a testing fixture to assist the corrugated pipe in testing. However, the existing testing fixtures have the following problems: (1) they are bulky and heavy; (2) they are inconvenient to store and occupy a lot of space; (3) the length adjustment is not convenient and cannot be quickly adjusted to the appropriate length according to the length specifications of the corrugated pipe. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a corrugated pipe inspection fixture. The entire fixture is lightweight after clamping the product, can be stacked for storage, is easy to store, and can adapt to stainless steel corrugated pipe products of various lengths and specifications.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A corrugated pipe testing fixture includes a slide rail assembly, a first loading plate, a second loading plate, a fluid inlet plate, and a fluid outlet plate. The slide rail assembly includes a guide rail, a first slider, and a second slider. The first and second sliders are slidably connected to the guide rail. A first locking five-star handle is threadedly connected to the side wall of the first slider, and a second locking five-star handle is threadedly connected to the side wall of the second slider. The threaded posts of the first and second locking five-star handles are used to abut against the guide rail. The first loading plate is parallel to the second loading plate, and the first and second loading plates are respectively fixedly connected to the first and second sliders. The first loading plate is provided with a plurality of first placement grooves at intervals that match one end of a stainless steel corrugated pipe product. The second loading plate is provided with multiple second placement slots that match the other end of the stainless steel corrugated pipe product at intervals; the fluid inlet plate and the fluid outlet plate are connected in parallel to the outside of the first loading plate and the outside of the second loading plate, respectively. The fluid inlet plate is provided with multiple first corrugated pipe joints corresponding to the first placement slots on the side near the first loading plate, and the fluid outlet plate is provided with multiple second corrugated pipe joints corresponding to the second placement slots on the side near the second loading plate. The bottom ends of the fluid inlet plate and the fluid outlet plate are provided with stacking support feet vertically, and the bottom of the stacking support feet is equipped with universal ball bearings. The top ends of the fluid inlet plate and the fluid outlet plate are provided with stacking grooves that match the stacking support feet and universal ball bearings.

[0007] In some embodiments, a first flow channel is provided in the fluid inlet plate along the length direction, and a first quick-connect connector is also provided on one side of the fluid inlet plate. The first quick-connect connector and a plurality of first corrugated pipe connectors are in communication with the first flow channel. A second flow channel is provided in the fluid outlet plate along the length direction, and a second quick-connect connector is also provided on one side of the fluid outlet plate. The second quick-connect connector and a plurality of second corrugated pipe connectors are in communication with the second flow channel.

[0008] Compared with the prior art, this utility model achieves at least the following beneficial effects:

[0009] The two ends of the stainless steel corrugated pipe are placed in the first and second placement slots respectively. The distance between the first and second loading plates can be quickly adjusted by sliding the first and second sliders. The distance adjustment is convenient and can accommodate stainless steel corrugated pipe products of various lengths. The testing fixture consists only of a slide rail assembly, a first loading plate, a second loading plate, a fluid inlet plate, and a fluid outlet plate. The entire testing fixture is lightweight after clamping the product, reducing the workload of employees. The testing fixture is easy to store, and multiple corrugated pipe testing fixtures can be stacked for storage, saving space and making the work more organized. Attached Figure Description

[0010] One or more embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings, in which:

[0011] Figure 1This is a schematic diagram of the structure of an embodiment of this application;

[0012] Figure 2 This is a top view of an embodiment of this application;

[0013] Figure 3 This is an exploded view of an embodiment of this application;

[0014] Figure 4 This is a cross-sectional view of the first and second placement slots according to an embodiment of this application;

[0015] Figure 5 This is an exploded structural diagram of the push-pull quick clamp according to an embodiment of this application.

[0016] Figure 6 This is a schematic diagram of an embodiment of the present application in a stacked state.

[0017] The diagram is labeled as follows: 1. Slide rail assembly; 11. Guide rail; 12. First slider; 121. First locking five-star handle; 13. Second slider; 131. Second locking five-star handle; 2. First loading plate; 21. First placement slot; 211. First positioning step; 3. Second loading plate; 31. Second placement slot; 311. Second positioning step; 4. Fluid inlet plate; 41. First bellows connector; 411. First washer; 42. First quick-connect connector; 5. Fluid outlet plate; 51. Second bellows connector; 511. 52. Second quick-connect fitting; 6. Stacking support foot; 7. Universal ball bearing; 8. Stacking groove; 9. Ball bearing bushing guide assembly; 91. Outer sleeve; 92. Guide shaft; 10. Push-pull quick clamp; 101. Fixing seat; 102. Connecting shaft; 103. Y-type connecting seat; 104. Push-pull handle; 105. First connecting rod; 106. Second connecting rod; 20. Limit bolt; 30. Vertical retaining block; 301. Vertical reference groove; 302. Vertical reference plane; 40. Stainless steel corrugated pipe product. Detailed Implementation

[0018] The present invention will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present application may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of this application more complete and to fully convey the concept of the present application to those skilled in the art.

[0019] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this application. Furthermore, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] like Figures 1-6 As shown in the embodiment of this application, the bellows inspection fixture includes a slide rail assembly 1, a first loading plate 2, a second loading plate 3, a fluid inlet plate 4, and a fluid outlet plate 5.

[0021] The slide rail assembly 1 includes a guide rail 11, a first slider 12, and a second slider 13. The first slider 12 and the second slider 13 are slidably connected to the guide rail 11. The side wall of the first slider 12 is threadedly connected to a first locking five-star handle 121, and the side wall of the second slider 13 is threadedly connected to a second locking five-star handle 131. By tightening the first locking five-star handle 121 and the second locking five-star handle 131, the threaded posts of the first locking five-star handle 121 and the second locking five-star handle 131 abut against the guide rail 11, thereby fixing the first slider 12 and the second slider 13 to the guide rail 11.

[0022] The first loading plate 2 and the second loading plate 3 are parallel, and the first loading plate 2 and the second loading plate 3 are respectively fixedly connected to the first slider 12 and the second slider 13. The first loading plate 2 is provided with a plurality of first placement grooves 21 that match one end of the stainless steel corrugated pipe product 40 at intervals, and the second loading plate 3 is provided with a plurality of second placement grooves 31 that match the other end of the stainless steel corrugated pipe product 40 at intervals. By placing both ends of the stainless steel corrugated pipe product 40 in the first placement grooves 21 and the second placement grooves 31 respectively, the distance between the first loading plate 2 and the second loading plate 3 can be adjusted by sliding the first slider 12 and the second slider 13, thereby accommodating stainless steel corrugated pipe products 40 of various lengths.

[0023] The fluid inlet plate 4 and the fluid outlet plate 5 are connected in parallel to the outer sides of the first loading plate 2 and the second loading plate 3, respectively. The fluid inlet plate 4 is provided with a plurality of first corrugated pipe joints 41 corresponding to the first placement groove 21 on the side near the first loading plate 2, and the fluid outlet plate 5 is provided with a plurality of second corrugated pipe joints 51 corresponding to the second placement groove 31 on the side near the second loading plate 3. The two ends of the stainless steel corrugated pipe product 40 are connected to the first corrugated pipe joints 41 and the second corrugated pipe joints 51, respectively. During testing, the fluid (gas or liquid) enters the inner cavity of the stainless steel corrugated pipe product 40 from the fluid inlet plate 4 through the first corrugated pipe joints 41, and exits from the fluid outlet plate 5 through the second corrugated pipe joints 51, which facilitates the relevant test items. The bottom ends of the fluid inlet plate 4 and the fluid outlet plate 5 are vertically provided with stacking support feet 6. The bottom of the stacking support feet 6 is equipped with universal ball bearings 7, which allow the bellows inspection fixture to slide in all directions on the worktable. The top ends of the fluid inlet plate 4 and the fluid outlet plate 5 are provided with stacking grooves 8 that match the stacking support feet 6 and the universal ball bearings 7. When storing the bellows inspection fixture, multiple bellows inspection fixtures can be stacked together for storage, which saves more space and is more neat. The stacking support foot 6 of one bellows inspection fixture can be placed on the stacking groove 8 on the top of another bellows inspection fixture.

[0024] In this example, a first flow channel is provided along the length of the fluid inlet plate 4, and a first quick-connect connector 42 is also provided on one side of the fluid inlet plate 4. The first quick-connect connector 42 is used to connect to the fluid supply end, and the first quick-connect connector 42 and a plurality of first corrugated pipe connectors 41 are connected to the first flow channel. A second flow channel is provided along the length of the fluid outlet plate 5, and a second quick-connect connector 52 is also provided on one side of the fluid outlet plate 5. The second quick-connect connector 52 is used to connect to the fluid collection device, and the second quick-connect connector 52 and a plurality of second corrugated pipe connectors 51 are connected to the second flow channel.

[0025] In this example, the first corrugated pipe joint 41 is cylindrical, and its inner diameter matches the outer diameter of one end of the stainless steel corrugated pipe product 40. The inner wall of the first corrugated pipe joint 41 is provided with a first annular step, and a first washer 411 is provided on the first annular step. One end of the stainless steel corrugated pipe product 40 is inserted into the first corrugated pipe joint 41. The second corrugated pipe joint 51 is cylindrical, and its front outer diameter matches the inner diameter of the other end of the stainless steel corrugated pipe product 40. The outer wall of the second corrugated pipe joint 51 is provided with a second annular step, and a second washer 511 is provided on the second annular step. The other end of the stainless steel corrugated pipe product 40 is sleeved on the second corrugated pipe joint 51.

[0026] In this example, multiple sets of ball bushing guide assemblies 9 are provided between the first loading plate 2 and the fluid inlet plate 4, and between the second loading plate 3 and the fluid outlet plate 5. Each ball bushing guide assembly 9 includes an outer sleeve 91, a ball bushing, and a guide shaft 92. The outer sleeve 91 is vertically mounted on the fluid inlet plate 4 or the fluid outlet plate 5. The ball bushing is coaxially disposed within the outer sleeve 91. One end of the guide shaft 92 is vertically mounted on the first loading plate 2 or the second loading plate 3, and the other end is coaxially connected to the ball bushing. The guide shaft 92 can move axially relative to the ball bushing, making the distance between the first loading plate 2 and the fluid inlet plate 4, and between the second loading plate 3 and the fluid outlet plate 5, adjustable, thus adjusting the loading space.

[0027] Furthermore, multiple push-pull quick clamps 10 are provided between the first loading plate 2 and the fluid inlet plate 4, and between the second loading plate 3 and the fluid outlet plate 5. Each push-pull quick clamp 10 includes a fixed base 101, a connecting shaft 102, a Y-shaped connecting base 103, a push-pull handle 104, a first connecting rod 105, and a second connecting rod 106. The fixed base 101 is fixedly connected to the fluid inlet plate 4 or the fluid outlet plate 5. One end of the connecting shaft 102 moves sequentially through the fixed base 101, the fluid inlet plate 4, and the first loading plate 2, or moves sequentially through the fixed base 101 and the fluid outlet plate 5. 5 and the second loading plate 3, and the through end of the connecting shaft 102 is provided with a stop block, the Y-shaped connecting seat 103 is hinged to the other end of the connecting shaft 102, the push-pull handle 104 is fixedly connected to the Y-shaped connecting seat 103, the first connecting rod 105 is parallel to the second connecting rod 106, and a connecting plate is fixedly connected between the bottom of the first connecting rod 105 and the second connecting rod 106, one end of the first connecting rod 105 and one end of the second connecting rod 106 are respectively hinged to the two sides of the fixed seat 101, and the other end of the first connecting rod 105 and the other end of the second connecting rod 106 are respectively hinged to the two sides of the Y-shaped connecting seat 103. By moving the push-pull handle 104, the connecting shaft 102 can be driven to reciprocate linearly along the axial direction. For example, after the stainless steel corrugated pipe product 40 is installed, pulling the push-pull handle 104 backward can pull the connecting shaft 102 outward through the Y-shaped connecting seat 103, thereby increasing the length of the connecting shaft 102 extending outward through the fixing seat 101. This reduces the distance between the first loading plate 2 and the fluid inlet plate 4, and between the second loading plate 3 and the fluid outlet plate 5, so that the first corrugated pipe joint 41 and the second corrugated pipe joint 51 are respectively pressed against the two ends of the stainless steel corrugated pipe product 40, achieving a tight connection.

[0028] Furthermore, multiple limiting bolts 20 are provided between the first loading plate 2 and the fluid inlet plate 4, and between the second loading plate 3 and the fluid outlet plate 5. The limiting bolts 20 are threaded onto the fluid inlet plate 4 or the fluid outlet plate 5, with the bolts extending out of the fluid inlet plate 4 and facing the first loading plate 2, or extending out of the fluid outlet plate 5 and facing the second loading plate 3. The limiting bolts 20 are used to limit the minimum distance between the first loading plate 2 and the fluid inlet plate 4, and between the second loading plate 3 and the fluid outlet plate 5.

[0029] In this example, the first placement groove 21 is provided with a first positioning step 211 that matches one end of the stainless steel corrugated pipe product 40, and the second placement groove 31 is provided with a second positioning step 311 that matches the other end of the stainless steel corrugated pipe product 40.

[0030] In this example, vertical retaining blocks 30 are provided at the bottom of the first loading plate 2 and the fluid inlet plate 4, and at the bottom of the second loading plate 3 and the fluid outlet plate 5. Each vertical retaining block 30 has a vertical reference groove 301 that matches the first loading plate 2 or the second loading plate 3, and a vertical reference plane 302 that matches the fluid inlet plate 4 or the fluid outlet plate 5. Connecting screws, threaded to the first loading plate 2 or the second loading plate 3, pass through the bottom of the vertical reference groove 301. The bottoms of the first loading plate 2 and the second loading plate 3 are mounted on the vertical reference groove 301 using connecting screws, while the bottoms of the fluid inlet plate 4 and the fluid outlet plate 5 press against the vertical reference plane 302, thereby ensuring that the first loading plate 2 and the fluid inlet plate 4 are perpendicular to the worktable, and ensuring that the second loading plate 3 and the fluid outlet plate 5 are perpendicular to the worktable.

[0031] The working principle of this utility model is as follows: the two ends of the stainless steel corrugated pipe product 40 are respectively placed in the first placement groove 21 and the second placement groove 31. By sliding the first slider 12 and the second slider 13, the distance between the first loading plate 2 and the second loading plate 3 can be quickly adjusted. The distance adjustment is convenient, so it can adapt to stainless steel corrugated pipe products 40 of various lengths. After the stainless steel corrugated pipe product 40 is installed, the push handle 104 is pulled back to reduce the distance between the first loading plate 2 and the fluid inlet plate 4, and between the second loading plate 3 and the fluid outlet plate 5, so that the first corrugated pipe joint 41 and the second corrugated pipe joint 51 are respectively pressed tightly at both ends of the stainless steel corrugated pipe product 40 to achieve a tight connection.

[0032] In summary, this utility model consists only of a slide rail assembly 1, a first loading plate 2, a second loading plate 3, a fluid inlet plate 4, and a fluid outlet plate 5. The entire fixture is lightweight after clamping the product, reducing the workload of employees. The first loading plate 2 has a first placement slot 21, and the second loading plate 3 has multiple second placement slots 31. This testing fixture can install multiple stainless steel corrugated pipe products 40 at a single testing station. The testing fixture is easy to store, and multiple corrugated pipe testing fixtures can be stacked for storage, saving space and making it neater. The testing fixture can achieve off-line clamping, that is, during equipment operation, the operator uses another set of fixtures to load materials off-line, which shortens the loading time. After the machine test is completed, the other set of fixtures can be quickly installed on the testing station, maximizing the production capacity of the testing equipment.

[0033] It should be understood that all the above embodiments are exemplary and not restrictive. Any modifications, equivalent changes and alterations made by those skilled in the art to the specific embodiments described above under the concept of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A bellows inspection fixture, characterized in that: It includes a slide rail assembly, a first loading plate, a second loading plate, a fluid inlet plate, and a fluid outlet plate; The slide rail assembly includes a guide rail, a first slider and a second slider. The first slider and the second slider are slidably connected to the guide rail. The side wall of the first slider is threaded with a first locking five-star handle, and the side wall of the second slider is threaded with a second locking five-star handle. The threaded posts of the first locking five-star handle and the second locking five-star handle are used to abut against the guide rail. The first loading plate is parallel to the second loading plate, and the first loading plate and the second loading plate are respectively fixedly connected to the first slider and the second slider. The first loading plate is provided with a plurality of first placement slots that match one end of the stainless steel corrugated pipe product at intervals, and the second loading plate is provided with a plurality of second placement slots that match the other end of the stainless steel corrugated pipe product at intervals. The fluid inlet plate and the fluid outlet plate are connected in parallel to the outer sides of the first loading plate and the second loading plate, respectively. The fluid inlet plate has multiple first corrugated pipe joints corresponding to the first placement slot on the side near the first loading plate, and the fluid outlet plate has multiple second corrugated pipe joints corresponding to the second placement slot on the side near the second loading plate. The bottom ends of the fluid inlet plate and the fluid outlet plate are vertically provided with stacking support feet, and the bottom of the stacking support feet is equipped with universal ball bearings. The top ends of the fluid inlet plate and the fluid outlet plate are provided with stacking grooves that match the stacking support feet and universal ball bearings.

2. The corrugated pipe inspection fixture according to claim 1, characterized in that: The fluid inlet plate has a first flow channel along its length, and a first quick-connect fitting is also provided on one side of the fluid inlet plate. The first quick-connect fitting and a plurality of first corrugated pipe fittings are connected to the first flow channel. The fluid outlet plate has a second flow channel along its length, and a second quick-connect fitting is also provided on one side of the fluid outlet plate. The second quick-connect fitting and a plurality of second corrugated pipe fittings are connected to the second flow channel.

3. The bellows inspection fixture according to claim 1, characterized in that: The first corrugated pipe joint is cylindrical, and its inner diameter matches the outer diameter of one end of the stainless steel corrugated pipe product. The inner wall of the first corrugated pipe joint is provided with a first annular step, and a first washer is provided on the first annular step. The second corrugated pipe joint is cylindrical, and its front outer diameter matches the inner diameter of the other end of the stainless steel corrugated pipe product. The outer wall of the second corrugated pipe joint is provided with a second annular step, and a second washer is provided on the second annular step.

4. The bellows inspection fixture according to claim 1, characterized in that: Multiple sets of ball bushing guide assemblies are provided between the first loading plate and the fluid inlet plate, and between the second loading plate and the fluid outlet plate. Each ball bushing guide assembly includes an outer sleeve, a ball bushing, and a guide shaft. The outer sleeve is vertically installed on the fluid inlet plate or the fluid outlet plate, and the ball bushing is coaxially disposed inside the outer sleeve. One end of the guide shaft is vertically installed on the first loading plate or the second loading plate, and the other end is coaxially connected to the ball bushing.

5. The bellows inspection fixture according to claim 4, characterized in that: Multiple push-pull quick clamps are provided between the first loading plate and the fluid inlet plate, and between the second loading plate and the fluid outlet plate. Each push-pull quick clamp includes a fixed base, a connecting shaft, a Y-shaped connecting seat, a push-pull handle, a first connecting rod, and a second connecting rod. The fixed base is fixedly connected to the fluid inlet plate or the fluid outlet plate. One end of the connecting shaft moves sequentially through the fixed base, the fluid inlet plate, and the first loading plate, or sequentially through the fixed base, the fluid outlet plate, and the second loading plate. A stop is provided at the protruding end of the connecting shaft. The Y-shaped connecting seat is hinged to the other end of the connecting shaft. The push-pull handle is fixedly connected to the Y-shaped connecting seat. The first connecting rod and the second connecting rod are parallel, and a connecting plate is fixedly connected between the bottom of the first connecting rod and the second connecting rod. One end of the first connecting rod and one end of the second connecting rod are respectively hinged to both sides of the fixed base. The other ends of the first connecting rod and the other ends of the second connecting rod are respectively hinged to both sides of the Y-shaped connecting seat.

6. The corrugated pipe inspection fixture according to claim 5, characterized in that: Multiple limiting bolts are provided between the first loading plate and the fluid inlet plate, and between the second loading plate and the fluid outlet plate. The limiting bolts are threadedly connected to the fluid inlet plate or the fluid outlet plate, and the bolts of the limiting bolts pass through the fluid inlet plate and face the first loading plate, or pass through the fluid outlet plate and face the second loading plate.

7. The bellows inspection fixture according to claim 1, characterized in that: The first placement groove is provided with a first positioning step that matches one end of the stainless steel corrugated pipe product, and the second placement groove is provided with a second positioning step that matches the other end of the stainless steel corrugated pipe product.

8. The corrugated pipe inspection fixture according to claim 1, characterized in that: The bottom of the first loading plate and the fluid inlet plate, and the bottom of the second loading plate and the fluid outlet plate are all provided with vertical retaining blocks. The vertical retaining blocks are provided with vertical reference grooves that match the first loading plate or the second loading plate, and also with vertical reference planes that match the fluid inlet plate or the fluid outlet plate. The bottom of the vertical reference groove is provided with connecting screws that are threaded to the first loading plate or the second loading plate.