Fixing device for explosion-proof detection of stainless steel shell

By designing a fixing device that includes a worktable, an outer shaft, an inner shaft, steel balls, and an electric push rod, the problem of insufficient angle adjustment in the inspection of stainless steel shells was solved, realizing full scanning and stable clamping of stainless steel shells, and improving the accuracy and reliability of the inspection.

CN224239318UActive Publication Date: 2026-05-15LIDEOU FLUID TECHNOLOGY (SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIDEOU FLUID TECHNOLOGY (SUZHOU) CO LTD
Filing Date
2025-05-06
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

The existing fixing device for explosion-proof testing of stainless steel shells cannot adjust the angle of the stainless steel shell to be tested during the testing process, resulting in some areas not being fully scanned and key defects being missed.

Method used

A fixing device is designed, which includes a worktable, an outer shaft, an inner shaft, steel balls, an electric push rod, and a clamping assembly. The inner shaft rotates by rotating the outer shell, and the steel balls roll to adjust the angle of the stainless steel shell. The sliding rod and clamping arm are driven by the electric push rod to ensure that the shell does not shift after the angle is adjusted.

Benefits of technology

It achieves comprehensive scanning of stainless steel housings, reduces missed detection of critical defects, provides stable clamping and convenient operation, and ensures the accuracy and reliability of test data.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of stainless steel shell clamping, and discloses a stainless steel shell explosion-proof detection fixing device which comprises a workbench, an outer shaft is fixedly connected in the workbench, a steel ball is slidably connected in the outer shaft, the outer wall of the steel ball is slidably connected with an inner shaft, and the inner shaft is fixedly connected with the workbench. A shell is fixedly connected to the upper surface of the inner shaft, a first electric push rod is fixedly connected to the lower surface of the shell, a disc is fixedly connected to the output end of the first electric push rod, a clamping assembly is fixedly connected to the upper surface of the disc, and table legs are fixedly connected to the lower surface of the workbench. According to the utility model, the outer shell rotates to drive the inner shaft, the inner shaft is matched with the outer shaft, and when the inner shaft rotates, the steel ball rolls between the inner shaft and the outer shaft, so that the clamping assembly is driven to adjust the angle of the stainless steel shell, and the effects of comprehensively scanning the stainless steel shell and reducing missing detection of key defects can be achieved.
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Description

Technical Field

[0001] This utility model relates to the field of stainless steel shell clamping technology, and in particular to a fixing device for explosion-proof testing of stainless steel shells. Background Technology

[0002] Explosion-proof testing of stainless steel enclosures involves a series of tests to determine whether electrical equipment or other related equipment using stainless steel as its enclosure possesses explosion-proof performance. During the explosion-proof testing process, various tests are performed on the stainless steel enclosure, such as pressure tests and electrical performance tests. Fixing devices can stably secure the enclosure in a specific position, preventing it from shaking, shifting, or tipping over during testing, ensuring the accuracy and reliability of the test data.

[0003] Existing fixing devices for explosion-proof testing of stainless steel shells typically clamp the stainless steel shell to be tested before testing. However, they cannot adjust the angle of the stainless steel shell during the testing process, which can lead to some areas not being fully scanned and missing critical defects. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a fixing device for testing the explosion-proof properties of stainless steel shells. It aims to improve upon existing fixing devices for testing the explosion-proof properties of stainless steel shells, which cannot adjust the angle of the stainless steel shell to be tested during the testing process, thus preventing certain areas from being fully scanned and leading to missed detection of critical defects.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A fixing device for explosion-proof testing of stainless steel housing includes a workbench. An outer shaft is fixedly connected inside the workbench. A steel ball is slidably connected inside the outer shaft. An inner shaft is slidably connected to the outer wall of the steel ball. A housing is fixedly connected to the upper surface of the inner shaft. A first electric push rod is fixedly connected to the lower surface of the housing. A disc is fixedly connected to the output end of the first electric push rod. A clamping assembly is fixedly connected to the upper surface of the disc. Table legs are fixedly connected to the lower surface of the workbench.

[0007] Preferably, the clamping assembly includes a first support rod, the lower surface of which is fixedly connected to the upper surface of the disk, a first connecting rod rotatably connected to the outer wall of the first support rod, a clamping claw rotatably connected to the outer wall of the first connecting rod, a fixed platform rotatably connected to the outer wall of the clamping claw, and the lower surface of the fixed platform fixedly connected to the upper surface of the outer shell.

[0008] Preferably, a second support rod is fixedly connected to the upper right surface of the workbench, a frame is fixedly connected to the upper surface of the second support rod, and a second electric push rod is fixedly connected inside the frame.

[0009] Preferably, the output end of the second electric push rod is fixedly connected to a slide rod, and a slide sleeve is slidably connected to the outer wall of the slide rod.

[0010] Preferably, the lower surface of the sliding sleeve is rotatably connected to a second connecting rod, and the upper surface of the second connecting rod is rotatably connected to the lower surface of the frame.

[0011] Preferably, a third connecting rod is rotatably connected to the upper surface of the sliding sleeve, and a clamping arm is rotatably connected to the lower surface of the third connecting rod.

[0012] Preferably, a soft rubber pad is fixedly connected to the outer wall of the clamping arm, and the outer wall of the clamping arm is slidably connected to the inside of the frame.

[0013] Preferably, the outer wall of the disk is slidably connected to the inside of the outer shell, and the outer wall of the first support rod is slidably connected to the inside of the fixed platform.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the inner shaft is driven by the rotation of the outer shell. The inner shaft cooperates with the outer shaft. When the inner shaft rotates, the steel ball rolls between the inner and outer shafts, thereby driving the clamping assembly to adjust the angle of the stainless steel shell, so as to achieve a comprehensive scan of the stainless steel shell and reduce the missed detection of key defects.

[0016] 2. In this utility model, the sliding rod is pushed by the second electric push rod, which in turn drives the sliding sleeve to slide, thereby causing the clamping arm to slide within the frame, further causing the clamping arm to hold the stainless steel shell, thus achieving the effect that the stainless steel shell will not shift after being adjusted to the correct angle and then clamped again. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a fixing device for explosion-proof testing of stainless steel housing proposed in this utility model;

[0018] Figure 2 This is a partial structural diagram of the first support rod of a fixing device for explosion-proof testing of stainless steel housing proposed in this utility model;

[0019] Figure 3 This is a partial structural diagram of the clamping arm of a fixing device for explosion-proof testing of stainless steel housing proposed in this utility model;

[0020] Figure 4 This is a partial structural diagram of the inner shaft of a fixing device for explosion-proof testing of stainless steel housing proposed in this utility model;

[0021] Figure 5 This is a partial structural diagram of the second support rod of a fixing device for explosion-proof testing of stainless steel housing proposed in this utility model.

[0022] Legend:

[0023] 1. Clamping claw; 2. First connecting rod; 3. Fixed platform; 4. Disc; 5. First electric push rod; 6. First support rod; 7. Second electric push rod; 8. Sliding sleeve; 9. Second connecting rod; 10. Clamping arm; 11. Frame; 12. Sliding rod; 13. Third connecting rod; 14. Soft rubber pad; 15. Inner shaft; 16. Outer shaft; 17. Outer shell; 18. Worktable; 19. Steel ball; 20. Table leg; 21. Second support rod. Detailed Implementation

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

[0025] Reference Figures 1-3 An embodiment of this utility model provides a fixing device for explosion-proof testing of stainless steel shells, including a workbench 18, an outer shaft 16 fixedly connected inside the workbench 18, a steel ball 19 slidably connected inside the outer shaft 16, an inner shaft 15 slidably connected to the outer wall of the steel ball 19, a shell 17 fixedly connected to the upper surface of the inner shaft 15, a first electric push rod 5 fixedly connected to the lower surface of the shell 17, a disc 4 fixedly connected to the output end of the first electric push rod 5, a clamping assembly fixedly connected to the upper surface of the disc 4, and table legs 20 fixedly connected to the lower surface of the workbench 18.

[0026] Specifically, the first electric push rod 5 pushes the disk 4, thereby causing the first electric push rod 5 to drive the clamping assembly to clamp the stainless steel shell. The steel ball 19 slides under the clamping of the outer shaft 16 and the inner shaft 15, thereby causing the inner shaft 15 to rotate and drive the outer shell 17 to rotate, achieving a comprehensive scan of the stainless steel shell and reducing the missed detection of critical defects.

[0027] Reference Figures 2-3The clamping assembly includes a first support rod 6, the lower surface of which is fixedly connected to the upper surface of the disk 4. A first connecting rod 2 is rotatably connected to the outer wall of the first support rod 6. A clamping claw 1 is rotatably connected to the outer wall of the first connecting rod 2. A fixed platform 3 is rotatably connected to the outer wall of the clamping claw 1. The lower surface of the fixed platform 3 is fixedly connected to the upper surface of the outer shell 17. A second support rod 21 is fixedly connected to the upper right surface of the worktable 18. A frame 11 is fixedly connected to the upper surface of the second support rod 21. A second electric push rod 7 is fixedly connected inside the frame 11.

[0028] Specifically, the first electric push rod 5 pushes the disc 4 upward, which in turn pushes the first support rod 6 upward, causing the first support rod 6 to rotate upward, which in turn causes the first connecting rod 2 to rotate upward, further causing the first connecting rod 2 to rotate and drive the clamping claw 1 to open and close, achieving the effects of automatic centering, uniform clamping, and convenient operation. The outer shell 17 is used to protect its internal structure from external damage and to provide support to maintain its shape. The second support rod 21 is used to support the frame 11.

[0029] Reference Figures 3-5 The output end of the second electric push rod 7 is fixedly connected to a slide rod 12, and a slide sleeve 8 is slidably connected to the outer wall of the slide rod 12; a second connecting rod 9 is rotatably connected to the lower surface of the slide sleeve 8, and the upper surface of the second connecting rod 9 is rotatably connected to the lower surface of the frame 11; a third connecting rod 13 is rotatably connected to the upper surface of the slide sleeve 8, and a clamping arm 10 is rotatably connected to the lower surface of the third connecting rod 13; a soft rubber pad 14 is fixedly connected to the outer wall of the clamping arm 10, and the outer wall of the clamping arm 10 is slidably connected to the inside of the frame 11; the outer wall of the disc 4 is slidably connected to the inside of the outer shell 17, and the outer wall of the first support rod 6 is slidably connected to the inside of the fixed platform 3;

[0030] Specifically, the second electric push rod 7 pushes the slide rod 12 to slide, thereby causing the slide rod 12 to drive the second connecting rod 9 to rotate, which in turn causes the second connecting rod 9 to drive the sliding sleeve 8 to slide on the slide rod 12, which in turn drives the third connecting rod 13 to rotate, and further causes the third connecting rod 13 to drive the clamping arm 10 to slide within the frame 11, so as to achieve the effect that the stainless steel shell will not shift after the angle is adjusted and it is clamped again.

[0031] Working principle: Activating the first electric push rod 5 causes the disc 4 to move upwards, which in turn pushes the first support rod 6 upwards. The first support rod 6 then rotates the first connecting rod 2, causing the clamping jaws 1 to open and allowing the stainless steel housing to be placed on them. Subsequently, the first electric push rod 5 retracts, causing the disc 4 to move downwards, which in turn moves the first support rod 6 downwards. This causes the first support rod 6 to pull back the first connecting rod 2, causing it to rotate and close the clamping jaws 1, thus securing the stainless steel housing. This achieves automatic centering, uniform clamping, and convenient operation. Then, the push rod... The outer casing 17 rotates, causing the inner shaft 15 to rotate. The inner shaft 15 cooperates with the outer shaft 16. When the inner shaft 15 rotates, the steel ball 19 rolls between the inner shaft 15 and the outer shaft 16, thereby adjusting the angle of the stainless steel casing by rotating the clamping assembly. Then, the second electric push rod 7 is activated, which pushes the slide rod 12 to slide. The slide rod 12 drives the second connecting rod 9 to rotate, further causing the sliding sleeve 8 to slide on the outer wall of the slide rod 12. The sliding sleeve 8 further drives the third connecting rod 13 to rotate, and the third connecting rod 13 further pushes the clamping arm 10 to slide and clamp the stainless steel casing within the frame 11, thereby achieving the effect that the stainless steel casing will not shift after being clamped again after the angle is adjusted.

[0032] Finally, it should be noted that the above description is only 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 fixing device for testing the explosion-proof properties of a stainless steel housing, comprising a workbench (18), characterized in that: An outer shaft (16) is fixedly connected inside the workbench (18). A steel ball (19) is slidably connected inside the outer shaft (16). An inner shaft (15) is slidably connected to the outer wall of the steel ball (19). A housing (17) is fixedly connected to the upper surface of the inner shaft (15). A first electric push rod (5) is fixedly connected to the lower surface of the housing (17). A disc (4) is fixedly connected to the output end of the first electric push rod (5). A clamping assembly is fixedly connected to the upper surface of the disc (4). A table leg (20) is fixedly connected to the lower surface of the workbench (18).

2. The fixing device for explosion-proof testing of stainless steel housing according to claim 1, characterized in that: The clamping assembly includes a first support rod (6), the lower surface of which is fixedly connected to the upper surface of the disk (4), a first connecting rod (2) is rotatably connected to the outer wall of the first support rod (6), a clamping claw (1) is rotatably connected to the outer wall of the first connecting rod (2), a fixed platform (3) is rotatably connected to the outer wall of the clamping claw (1), and the lower surface of the fixed platform (3) is fixedly connected to the upper surface of the outer shell (17).

3. The fixing device for explosion-proof testing of stainless steel housing according to claim 1, characterized in that: A second support rod (21) is fixedly connected to the upper right surface of the workbench (18), and a frame (11) is fixedly connected to the upper surface of the second support rod (21). A second electric push rod (7) is fixedly connected inside the frame (11).

4. The fixing device for explosion-proof testing of stainless steel housing according to claim 3, characterized in that: The output end of the second electric push rod (7) is fixedly connected to a slide rod (12), and a sliding sleeve (8) is slidably connected to the outer wall of the slide rod (12).

5. A fixing device for explosion-proof testing of stainless steel housing according to claim 4, characterized in that: The lower surface of the sliding sleeve (8) is rotatably connected to a second connecting rod (9), and the upper surface of the second connecting rod (9) is rotatably connected to the lower surface of the frame (11).

6. The fixing device for explosion-proof testing of stainless steel housing according to claim 4, characterized in that: The upper surface of the sliding sleeve (8) is rotatably connected to a third connecting rod (13), and the lower surface of the third connecting rod (13) is rotatably connected to a clamping arm (10).

7. A fixing device for explosion-proof testing of stainless steel housing according to claim 6, characterized in that: The outer wall of the clamping arm (10) is fixedly connected to a soft rubber pad (14), and the outer wall of the clamping arm (10) is slidably connected to the inside of the frame (11).

8. A fixing device for explosion-proof testing of stainless steel housing according to claim 2, characterized in that: The outer wall of the disc (4) is slidably connected to the inside of the outer shell (17), and the outer wall of the first support rod (6) is slidably connected to the inside of the fixed platform (3).