Nitrogen spring leakage detection device

By designing a nitrogen spring leakage detection device, and utilizing the cooperation of a stamping detection mechanism and a centering mechanism, the synchronous measurement and accurate detection of multiple nitrogen springs were achieved, solving the problem of low efficiency in existing devices and improving detection accuracy and efficiency.

CN223925927UActive Publication Date: 2026-02-17JIANGSU FEIRUIDA MOULD TECH CO LTD
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Patent Information

Application Number
CN202520599582.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-02-17
Estimated Expiration
2035-04-01

AI Technical Summary

Technical Problem

Existing nitrogen spring leakage detection devices typically perform leakage tests on a single spring, resulting in low detection efficiency and an inability to achieve simultaneous measurement and accuracy improvement for multiple nitrogen springs.

Method used

A nitrogen spring leakage detection device was designed. Through the cooperation of a stamping detection mechanism and a centering mechanism, multiple nitrogen springs are centered and measured. By using a fixed platform and a water tank with detection liquid, and by setting up a side pressure component and a nitrogen spring locking mechanism, the nitrogen springs are locked and pressurized for detection. The appearance of bubbles in the detection liquid indicates leakage.

Benefits of technology

It enables simultaneous measurement of multiple nitrogen springs, improving detection accuracy and efficiency, simplifying the judgment method, and enhancing the accuracy of nitrogen spring leakage detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a nitrogen spring leakage detection device, which relates to the technical field of nitrogen spring detection and comprises a stamping detection mechanism, centering mechanisms are fixedly arranged on two sides of the stamping detection mechanism, and a nitrogen spring clamping mechanism is fixedly arranged in the stamping detection mechanism. According to the nitrogen spring gas leakage detection device, the problems that the existing nitrogen spring gas leakage detection device needs to improve a nitrogen spring test device, realize synchronous measurement of a plurality of nitrogen springs and improve the test precision are solved, and the punching detection mechanism and the centering mechanism are arranged in a matched manner, so that centering and measurement of a plurality of groups of nitrogen springs are realized; through the arrangement of the nitrogen spring clamping mechanism, the nitrogen spring can be clamped between the connecting plate and the spring assembly, meanwhile, the movable frame is arranged at the lower end support bottom of the nitrogen spring, synchronous movement of the movable frame, the connecting plate and the spring assembly is achieved, stability is kept, and the arrangement of the detection liquid can help judge whether the nitrogen spring leaks gas or not.
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Description

Technical Field

[0001] This utility model relates to the field of nitrogen spring detection technology, specifically a nitrogen spring leakage detection device. Background Technology

[0002] Nitrogen springs are elastic elements widely used in various mechanical devices. They are filled with high-pressure nitrogen gas and achieve elasticity by compressing and expanding the nitrogen gas. Because the working environment of nitrogen springs is usually harsh, they are easily affected by external environmental factors such as temperature and humidity, which can lead to leakage. Leakage of nitrogen springs will reduce their elastic performance and affect the normal operation of mechanical equipment. Therefore, leakage detection of nitrogen springs is an important measure to ensure their normal operation.

[0003] Current nitrogen spring leakage detection devices typically perform leakage tests on individual springs to determine if a nitrogen spring is leaking. While this increases the precision of nitrogen spring detection, it also reduces efficiency. Therefore, there is a need to improve the nitrogen spring testing device to achieve simultaneous measurement of multiple nitrogen springs and improve testing accuracy.

[0004] To address the aforementioned issues, a nitrogen spring leakage detection device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a nitrogen spring leakage detection device, which solves the problem that current nitrogen spring leakage detection devices in the background technology perform leakage tests on individual springs to determine whether a nitrogen spring is leaking, which reduces efficiency and improves the precision of nitrogen spring detection. Therefore, it is necessary to improve the nitrogen spring testing device to achieve synchronous measurement of multiple nitrogen springs and improve the testing accuracy.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a nitrogen spring leakage detection device, comprising a stamping detection mechanism, with centering mechanisms fixedly arranged on both sides of the stamping detection mechanism for centering by compression, and a nitrogen spring engaging mechanism for measuring airtightness fixedly arranged inside the stamping detection mechanism, the stamping detection mechanism comprising a fixed platform, and a vertical plate vertically arranged at the upper end of the fixed platform, the centering mechanism comprising two sets of side pressure components arranged horizontally, the nitrogen spring engaging mechanism comprising a water tank connected to one side of the fixed platform, a movable frame slidably arranged inside the water tank, a connecting plate fixedly connected to the upper end of the movable frame, a spring assembly slidably engaging on the connecting plate, and one end of the spring assembly fixedly connected to the movable frame.

[0007] Preferably, the stamping testing mechanism further includes an upper pressure platform fixedly mounted on the upper part of the fixed platform, a stamping cylinder centrally mounted on the upper pressure platform, and a vertical plate connected to the output end of the stamping cylinder.

[0008] Preferably, a T-shaped pressure block is fixedly installed at the lower middle part of the vertical plate, and two sets of straight guide rods are connected to the upper end of the vertical plate. The straight guide rods pass through the upper pressure table, and a limiting sleeve for lifting and limiting is fixedly sleeved on the straight guide rods.

[0009] Preferably, the stamping testing mechanism further includes a water outlet pipe disposed at the lower end of the fixed platform, and a water pipe switch is connected to one side of the water outlet pipe.

[0010] Preferably, the centering mechanism further includes side blocks fixedly disposed on both sides of the upper end of the fixed platform, the side pressing assembly is connected to the upper end of the side blocks, horizontal rods are connected to both sides of the side pressing assembly, the horizontal rods are disposed through the side blocks, and the side pressing assembly includes a side-mounted cylinder disposed on one side of the side block and a straightening plate disposed at the output end of the side-mounted cylinder.

[0011] Preferably, the nitrogen spring engaging mechanism further includes a pulley component disposed on the upper end of the fixed platform for sliding and guiding the moving frame, straight rod components for driving the moving frame are disposed on both sides of the water tank, the moving frame includes an insert block connected to the output end of the straight rod component, a support plate slidably disposed on the upper end of the pulley component, and a U-shaped frame for supporting the nitrogen spring is fixedly disposed on the lower end of the support plate.

[0012] Preferably, the connecting plate has a partition in the middle for laterally fitting the nitrogen spring, and the connecting plate has side openings on both sides.

[0013] Preferably, the spring assembly includes a side spring connected to one side of the support plate, one end of which is connected to an H-shaped slider, which slidably engages with the connecting plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model provides a nitrogen spring leakage detection device. Through the coordinated arrangement of a stamping detection mechanism and a centering mechanism, it realizes the centering and measurement of multiple nitrogen springs. The fixed platform cooperates with the water tank to realize the holding of leakage detection liquid. The vertical plate is set at the upper end of the water tank for pressurization to realize leakage detection. The symmetrical arrangement of the side pressure component helps to center the nitrogen springs fixed in the nitrogen spring locking mechanism. It initially solves the problem that current nitrogen spring leakage detection devices need to be improved to realize the synchronous measurement of multiple nitrogen springs and improve the test accuracy.

[0016] 2. This utility model provides a nitrogen spring leakage detection device. Through the nitrogen spring locking mechanism, the sliding of the moving frame within the water tank facilitates the safe locking of the nitrogen spring. The moving frame and connecting plate are fixed to each other, and the spring assembly and connecting plate slide and lock together, allowing the nitrogen spring to be locked between the connecting plate and the spring assembly. Simultaneously, the moving frame is positioned at the lower end of the nitrogen spring to support it, achieving synchronous movement of the moving frame, connecting plate, and spring assembly to maintain stability. The elastic setting of the spring assembly enables centered pressurization. This structure allows for simultaneous measurement of two groups of nitrogen springs. The detection liquid helps determine if the nitrogen spring is leaking. If a large number of bubbles appear in the vertical plate pressurized detection liquid, a leak exists. The judgment method is simple and clear, solving the problem that current nitrogen spring leakage detection devices require improvements to the nitrogen spring testing device to achieve simultaneous measurement of multiple nitrogen springs and improve testing accuracy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0019] Figure 3 This is a schematic side view of the overall structure of this utility model. Figure 1 ;

[0020] Figure 4 This is a schematic side view of the overall structure of this utility model. Figure 2 ;

[0021] Figure 5 This is a schematic diagram of the nitrogen spring engaging mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram showing the disassembled structure of the nitrogen spring engaging mechanism of this utility model.

[0023] In the diagram: 1. Stamping inspection mechanism; 11. Fixed platform; 12. Upper press table; 13. Stamping cylinder; 14. Vertical plate; 141. T-shaped pressure block; 142. Straight guide rod; 143. Limiting sleeve; 15. Water outlet pipe; 151. Water pipe switch; 2. Centering mechanism; 21. Side block; 22. Side pressure assembly; 221. Side-mounted cylinder; 222. Pressing straight plate; 23. Horizontal rod; 3. Nitrogen spring locking mechanism; 31. Water tank; 32. Pulley assembly; 33. Straight rod assembly; 34. Moving frame; 341. Insert block; 342. Support plate; 343. U-shaped frame; 35. Connecting plate; 351. Partition plate; 352. Side opening; 36. Spring assembly; 361. Side-mounted spring; 362. H-shaped slide. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0026] Combination Figure 1 This utility model discloses a nitrogen spring leakage detection device, including a stamping detection mechanism 1, a centering mechanism 2 for squeezing and centering fixedly arranged on both sides of the stamping detection mechanism 1, and a nitrogen spring locking mechanism 3 for measuring air tightness fixedly arranged inside the stamping detection mechanism 1. The stamping detection mechanism 1 includes a fixed platform 11 and a vertical plate 14 that is raised and lowered to align with the upper end of the fixed platform 11. The centering mechanism 2 includes two sets of side pressure components 22 that are horizontally adjustable. The nitrogen spring locking mechanism 3 includes a water tank 31 connected to one side of the fixed platform 11. A movable frame 34 is slidably arranged inside the water tank 31. A connecting plate 35 is fixedly connected to the upper end of the movable frame 34. A spring assembly 36 is slidably locked on the connecting plate 35. One end of the spring assembly 36 is fixedly connected to the movable frame 34.

[0027] Specifically, the fixed platform 11 cooperates with the water tank 31 to hold the leak detection liquid. The vertical plate 14 is set at the upper end of the water tank 31 for pressurization to achieve leak detection. The symmetrical arrangement of the side pressure component 22 helps to center the nitrogen spring fixed in the nitrogen spring locking mechanism 3. The sliding frame 34 is set in the water tank 31 to facilitate safe locking of the nitrogen spring. The sliding frame 34 and the connecting plate 35 are fixed to each other. The spring assembly 36 and the connecting plate 35 slide and engage, so that the nitrogen spring can be locked between the connecting plate 35 and the spring assembly 36. At the same time, the sliding frame 34 is set at the lower end of the nitrogen spring to support it, so that the synchronous movement of the sliding frame 34, the connecting plate 35 and the spring assembly 36 can be achieved to maintain stability. The elastic setting of the spring assembly 36 can achieve centered pressurization. This structure can achieve dual-group synchronous measurement of the nitrogen spring. The setting of the detection liquid can help to determine whether the nitrogen spring is leaking. If a large number of bubbles appear in the detection liquid pressurized by the vertical plate 14, there is a leak. The judgment method is simple and clear.

[0028] The present invention will be further described below with reference to the embodiments.

[0029] Example 1:

[0030] Combination Figures 2-4The stamping testing mechanism 1 also includes an upper pressure platform 12 fixedly installed on the upper end of the fixed platform 11. A stamping cylinder 13 is centrally installed on the upper pressure platform 12. A vertical plate 14 is connected to the output end of the stamping cylinder 13. The upper pressure platform 12 supports and fixes the stamping cylinder 13. The stamping cylinder 13 drives the vertical plate 14 to rise and fall to achieve the pressure test for air leakage.

[0031] A T-shaped pressure block 141 is fixedly installed at the lower center of the vertical plate 14. Two sets of straight guide rods 142 are connected to the upper end of the vertical plate 14. The straight guide rods 142 pass through the upper pressure table 12. A limiting sleeve 143 for lifting and limiting is fixedly sleeved on the straight guide rods 142. The T-shaped pressure block 141 realizes centered pressure, the straight guide rods 142 are set vertically for vertical guidance, and the limiting sleeve 143 performs lifting and limiting to prevent the centering mechanism 2 from conflicting with the vertical plate 14.

[0032] The stamping testing mechanism 1 also includes a water outlet pipe 15 located at the lower end of the fixed platform 11. A water pipe switch 151 is connected to one side of the water outlet pipe 15. The water pipe switch 151 controls the connection of the water outlet pipe 15 and is used to guide the test liquid.

[0033] The centering mechanism 2 also includes side blocks 21 fixedly installed on both sides of the upper end of the fixed platform 11. The side pressure assembly 22 is connected to the upper end of the side blocks 21. Horizontal rods 23 are connected to both sides of the side pressure assembly 22. The horizontal rods 23 are installed through the side blocks 21. The side pressure assembly 22 includes a side-mounted cylinder 221 installed on one side of the side block 21 and a straightening plate 222 installed at the output end of the side-mounted cylinder 221. The side blocks 21 play a fixing role. The horizontal rods 23 are used to guide the side pressure assembly 22. The side-mounted cylinder 221 drives the straightening plate 222 to move. The straightening plate 222 is relatively high. It is set to be aligned with the nitrogen spring to help fix the nitrogen spring vertically and facilitate pressure testing.

[0034] Example 2:

[0035] Combination Figures 4-6 The nitrogen spring locking mechanism 3 also includes a pulley 32 set on the upper end of the fixed platform 11 for sliding guide moving frame 34. Straight rods 33 for driving moving frame 34 are set on both sides of water tank 31. Moving frame 34 includes a plug 341 connected to the output end of straight rod 33. A support plate 342 is slidably set on the upper end of pulley 32. A U-shaped frame 343 for supporting nitrogen spring is fixedly set on the lower end of support plate 342. Pulley 32 reduces friction. Straight rod 33 drives support plate 342 to move through plug 341. U-shaped frame 343 realizes the movement of nitrogen spring and supports the bottom, preventing nitrogen spring after locking from being subjected to friction from the bottom fixed platform 11.

[0036] The connecting plate 35 has a partition 351 in the middle for laterally fitting the nitrogen spring. The connecting plate 35 has side openings 352 on both sides. The partition 351 is centered and the side openings 352 are the snap-fit ​​openings for the nitrogen spring.

[0037] The spring assembly 36 includes a side spring 361 connected to one side of the support plate 342. One end of the side spring 361 is connected to an H-shaped slider 362. The H-shaped slider 362 is slidably engaged with the connecting plate 35. The side spring 361 provides elastic clamping force for the H-shaped slider 362. The H-shaped arrangement of the H-shaped slider 362 fits against the connecting plate 35 to prevent displacement.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nitrogen spring gas leakage detection device comprising a stamping detection mechanism (1), characterized in that: The punch detection mechanism (1) is fixedly provided with a centering mechanism (2) for extruding the center on both sides, and the inside of the punch detection mechanism (1) is fixedly provided with a nitrogen spring clamping mechanism (3) for measuring air tightness. The punch detection mechanism (1) comprises a fixed platform (11), a vertical plate (14) which is vertically arranged on the upper end of the fixed platform (11), the centering mechanism (2) comprises two groups of side pressing assemblies (22) which are horizontally adjusted, and the nitrogen spring clamping mechanism (3) comprises a water tank (31) which is connected to one side of the fixed platform (11), a moving frame (34) which is slidably arranged in the water tank (31), a connecting plate (35) which is fixedly connected to the upper end of the moving frame (34), a spring assembly (36) which is slidably clamped on the connecting plate (35), and one end of the spring assembly (36) is fixedly connected to the moving frame (34).

2. The nitrogen gas spring gas leakage detection device according to claim 1, wherein: The punch detection mechanism (1) further comprises an upper pressing table (12) which is fixedly arranged on the upper end of the fixed platform (11), and a punch cylinder (13) which is centrally arranged on the upper pressing table (12), and the vertical plate (14) is connected to the output end of the punch cylinder (13).

3. The nitrogen gas spring leakage detection device of claim 1, wherein: The lower end of the vertical plate (14) is fixedly provided with a T-shaped pressing block (141), and the upper end of the vertical plate (14) is connected with two groups of straight guide rods (142), the straight guide rods (142) penetrate through the upper pressing table (12), and a limiting sleeve block (143) for lifting limiting is fixedly sleeved on the straight guide rods (142).

4. The nitrogen gas spring gas leakage detection device of claim 1, wherein: The punch detection mechanism (1) further comprises a water outlet pipe (15) which is arranged at the lower end of the fixed platform (11), and a water pipe switch (151) which is connected to one side of the water outlet pipe (15).

5. The nitrogen gas spring leak detection apparatus of claim 1, wherein: The centering mechanism (2) further comprises side blocks (21) which are fixedly arranged on both sides of the upper end of the fixed platform (11), the side pressing assemblies (22) are connected to the upper end of the side blocks (21), horizontal rods (23) are connected to both sides of the side pressing assemblies (22), the horizontal rods (23) penetrate through the side blocks (21), and the side pressing assemblies (22) comprise side cylinders (221) which are arranged on one side of the side blocks (21) and straight pressing plates (222) which are arranged at the output end of the side cylinders (221).

6. The nitrogen gas spring leak detection apparatus of claim 1, wherein: The nitrogen spring clamping mechanism (3) further comprises a pulley piece (32) which is arranged at the upper end of the fixed platform (11) and used for sliding guide of the moving frame (34), straight rod pieces (33) which are arranged at both sides of the water tank (31) and used for driving the moving frame (34), the moving frame (34) comprises an insertion block (341) which is connected to the output end of the straight rod piece (33), a supporting plate (342) which is slidably arranged at the upper end of the pulley piece (32), and a U-shaped frame (343) which is fixedly arranged at the lower end of the supporting plate (342) and used for supporting nitrogen springs.

7. The nitrogen gas spring leak detection apparatus of claim 1, wherein: The middle part of the connecting plate (35) is provided with a partition plate (351) for lateral fitting of nitrogen springs, and side openings (352) are formed at both sides of the connecting plate (35).

8. The nitrogen gas spring gas leakage detection device of claim 6, wherein: The spring assembly (36) comprises a side spring (361) connected to one side of the supporting plate (342), one end of the side spring (361) is connected with an H-shaped sliding piece (362), and the H-shaped sliding piece (362) is slidingly and claspingly connected with the connecting plate (35); and the side spring (361) is the H-shaped sliding piece.