A limiting device for maintenance of a thermal shock chamber

By designing the base plate, mounting components, and limiting components of the limiting device, the problem of easy movement of the movable chamber door during the maintenance of the thermal shock test chamber was solved, achieving a safe and reliable limiting effect and improving maintenance efficiency.

CN224445725UActive Publication Date: 2026-07-03GUANGDONG ZHONGKE LIDA TESTING EQUIPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG ZHONGKE LIDA TESTING EQUIPMENT CO LTD
Filing Date
2025-07-30
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

During the maintenance of thermal shock test chambers, the lack of effective limiting devices makes the movable chamber doors prone to movement, which may cause injury to staff and prolong maintenance time.

Method used

A limiting device comprising a base plate, mounting components, and limiting components was designed. By rotating a screw, clamping plate, rotating seat, and limiting clamp, the movable door can be adjusted and limited to ensure its stability.

Benefits of technology

It effectively prevents the movable door from moving during maintenance, ensuring the safety of staff, shortening maintenance time, and improving maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of maintenance tool technology, and in particular to a limiting device for repairing a thermal shock chamber. It includes a base plate, a mounting assembly, and a limiting assembly. The mounting assembly includes a rotating screw, a first clamping plate, and a second clamping plate. A threaded hole that mates with the rotating screw is opened on one side of the base plate. The first clamping plate is fitted onto the end of the rotating screw away from the threaded hole. The second clamping plate is located on the side of the base plate away from the rotating screw. The limiting assembly includes a limiting clamp, a rotating seat, and a receiving rod. The rotating seat is rotatably positioned below the base plate. The receiving rod is located on one side of the rotating seat, and an adjusting rod is provided at the end of the receiving rod away from the rotating seat. The limiting clamp is rotatably positioned at the end of the adjusting rod away from the receiving rod. In use, by rotating the limiting clamp and adjusting it to fit the angle of the movable chamber, the limiting clamp clamps the lower edge of the movable chamber, thus limiting the opening of the movable chamber.
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Description

Technical Field

[0001] This utility model relates to the field of maintenance tool technology, and in particular to a limiting device for the maintenance of a thermal shock chamber. Background Technology

[0002] A thermal shock test chamber is an environmental testing device used to test the performance stability of materials, electronic products, components, or complete machines under extreme and rapid temperature changes. It assesses the reliability, durability, and potential defects of products under the effects of thermal expansion and contraction by simulating drastic temperature changes.

[0003] During the maintenance of thermal shock test chambers, when repairing the movable doors of the machine tool, such as replacing sealing strips, adjusting hinges, or replacing observation windows, workers usually need to manually support and limit the movable doors to prevent them from moving during maintenance. Without a limiting device, repairing the movable doors can easily lead to accidental injury to workers and door shaking, prolonging the maintenance time. To address these issues, the inventor has proposed a limiting device for thermal shock chamber maintenance to solve the aforementioned technical problems. Utility Model Content

[0004] The purpose of this utility model is achieved through the following means: a limiting device for the maintenance of a thermal shock chamber, comprising a base plate, a mounting assembly, and a limiting assembly. Both the mounting assembly and the limiting assembly are connected to the base plate. The mounting assembly includes a rotating screw, a first clamping plate, and a second clamping plate. A threaded hole that mates with the rotating screw is opened on one side of the base plate. The rotating screw is rotatably disposed in the threaded hole. The first clamping plate is sleeved on the end of the rotating screw away from the threaded hole. A pressure plate is provided at the end of the rotating screw away from the threaded hole. The second clamping plate is disposed on the side of the base plate away from the rotating screw. The limiting assembly includes a limiting clamp, a rotating seat, and a receiving rod. The rotating seat is rotatably disposed below the base plate. The receiving rod is disposed on one side of the rotating seat. An adjusting rod is movably disposed at the end of the receiving rod away from the rotating seat. The limiting clamp is rotatably disposed at the end of the adjusting rod away from the receiving rod.

[0005] In the above description, as a further embodiment, the first clamping plate and the rotating screw are slidably fitted together. The first clamping plate is provided with a clearance hole that matches the rotating screw at the position near the rotating screw. The clamping plate is fixedly connected to the rotating screw, and a torsion position is provided on the side of the clamping plate away from the rotating screw. The torsion position allows the operator to control the rotating screw to achieve the clamping effect of driving the first clamping plate.

[0006] In the above description, as a further embodiment, the bottom surface of the substrate is provided with a thickened plate, the top surface of the thickened plate is fixedly connected to the bottom surface of the substrate, one side of the thickened plate is flush with one side of the substrate, and one side of the top surface of the thickened plate is provided with a reinforcing rib, which is fixedly connected to the side of the substrate; the thickened plate is used to provide the installation effect of the rotating seat.

[0007] In a further embodiment of the above description, the rotating seat is fitted to the bottom surface of the thickened plate. The bottom surface of the thickened plate is provided with a locking screw hole near the rotating seat. The bottom of the rotating seat is provided with a locking bolt. The screw of the locking bolt passes through the rotating seat and engages with the locking screw hole. The operator can use the locking bolt to adjust the rotation angle of the rotating seat and then tighten and lock it.

[0008] In a further embodiment of the above description, the storage rod has a receiving groove matching the adjusting rod at one end. The adjusting rod extends towards the receiving groove at one end. Positioning holes are distributed on the side of the adjusting rod. An insertion hole of the same diameter and concentric with the positioning holes is provided on the side of the storage rod near the receiving groove. A locking pin is provided near the insertion hole on the storage rod. The pin post of the locking pin extends towards the insertion hole and the positioning hole. The locking pin, insertion hole, and positioning hole are used to control the extension distance of the adjusting rod, thereby achieving the effect of adapting to different movable cabinet doors.

[0009] In a further embodiment of the above description, the end of the adjusting rod furthest from the extension rod is rotatably connected to the limiting clamp. A rotating disk is provided between the bottom of the limiting clamp and the adjusting rod. The limiting clamp is fixedly connected to the rotating disk, which is rotatably connected to the adjusting rod. A support plate is provided on the side of the limiting clamp near the adjusting rod. Guide posts are provided at both ends of the bottom surface of the support plate. A guide hole matching the guide post is provided on the top surface of the adjusting rod near the guide post. An upper bolt is provided in the middle of the bottom surface of the support plate. A control screw hole matching the upper bolt is provided on the adjusting rod near the upper bolt. The rotating disk is used to provide the rotation effect of the limiting clamp, so as to achieve the effect of fitting and clamping with the movable box door.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: Through the design of the limiting clamp, the storage rod, the adjusting rod, and the rotating seat, during use, the operator adjusts the distance of the rotating screw from the threaded hole to adapt the width of the chassis. Then, the rotating screw is controlled to reverse, shortening the distance between the first clamp and the second clamp until the chassis is clamped. The tilt angle of the rotating seat and the distance between the adjusting rod and the storage rod can then be adjusted. After the rotatable limiting clamp is adjusted to the angle that adapts to the movable box, the lower edge of the movable box is clamped by the limiting clamp, thus achieving the effect of limiting the movable box after it is opened. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of a limiting device for repairing a thermal shock chamber according to this utility model;

[0012] Figure 2 This is a three-dimensional structural diagram of a limiting device for repairing a thermal shock chamber, as presented in this utility model, from another perspective.

[0013] Figure 3 This is an exploded view of a limiting device for repairing a thermal shock chamber according to this utility model.

[0014] Figure 4 This is an exploded structural diagram of a limiting device for repairing a thermal shock chamber according to this utility model from another perspective.

[0015] Figure 5 This is a schematic diagram illustrating the usage effect of a limiting device for repairing a thermal shock chamber according to this utility model;

[0016] In the diagram: 1-substrate, 2-rotating screw, 3-first clamping plate, 4-second clamping plate, 5-threaded hole;

[0017] 6-Pressure plate, 7-Limit clamp, 8-Rotating seat, 9-Storage rod, 10-Adjusting rod, 11-Allowing hole;

[0018] 12-Torque position, 13-Thickened plate, 14-Reinforcing rib, 15-Locking screw hole, 16-Locking bolt;

[0019] 17-Receiving groove, 18-Positioning hole, 19-Insert hole, 20-Locking pin, 21-Rotating disk;

[0020] 22-Support plate, 23-Guide post, 24-Through hole, 25-Top bolt, 26-Control screw hole. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] For this embodiment, please refer to Figures 1-5The invention relates to a limiting device for repairing a thermal shock chamber, comprising a base plate 1, a mounting assembly, and a limiting assembly. Both the mounting assembly and the limiting assembly are connected to the base plate 1. The mounting assembly includes a rotating screw 2, a first clamping plate 3, and a second clamping plate 4. A threaded hole 5 is provided on one side of the base plate 1 to cooperate with the rotating screw 2. The rotating screw 2 is rotatably disposed in the threaded hole 5. The first clamping plate 3 is sleeved on the end of the rotating screw 2 away from the threaded hole 5. A pressure plate 6 is provided on the end of the rotating screw 2 away from the threaded hole 5. The second clamping plate 4 is disposed on the side of the base plate 1 away from the rotating screw 2. The limiting assembly includes a limiting clamp 7, a rotating seat 8, and a receiving rod 9. The rotating seat 8 is rotatably disposed below the base plate 1. The receiving rod 9 is disposed on one side of the rotating seat 8. An adjusting rod 10 is movably disposed on the end of the receiving rod 9 away from the rotating seat 8. The limiting clamp 7 is rotatably disposed on the end of the adjusting rod 10 away from the receiving rod 9.

[0023] The first clamping plate 3 and the rotating screw 2 are slidably fitted together. The first clamping plate 3 is provided with a clearance hole 11 that matches the rotating screw 2 at the position near the rotating screw 2. The clamping plate 6 is fixedly connected to the rotating screw 2. The clamping plate 6 is provided with a torsion position 12 on the side away from the rotating screw 2.

[0024] The bottom surface of the substrate 1 is provided with a thickened plate 13, the top surface of the thickened plate 13 is fixedly connected to the bottom surface of the substrate 1, one side of the thickened plate 13 is flush with one side of the substrate 1, and one side of the top surface of the thickened plate 13 is provided with a reinforcing rib 14, which is fixedly connected to the side of the substrate 1.

[0025] The rotating seat 8 is in contact with the bottom surface of the thickened plate 13. The bottom surface of the thickened plate 13 is provided with a locking screw hole 15 near the rotating seat 8. The bottom of the rotating seat 8 is provided with a locking bolt 16. The screw of the locking bolt 16 passes through the rotating seat 8 and engages with the locking screw hole 15.

[0026] The storage rod 9 has a receiving groove 17 that matches the adjusting rod 10 at one end near the adjusting rod 10. The adjusting rod 10 extends toward the receiving groove 17 at one end near the receiving groove 17. Positioning holes 18 are distributed on the side of the adjusting rod 10. An insertion hole 19 with the same diameter and concentricity as the positioning hole 18 is provided on the side of the storage rod 9 near the receiving groove 17. A locking pin 20 is provided on the storage rod 9 near the insertion hole 19. The pin post of the locking pin 20 extends toward the insertion hole 19 and the positioning hole 18.

[0027] The end of the adjusting rod 10 away from the extension rod is rotatably connected to the limiting clamp 7. A rotating disk 21 is provided between the bottom of the limiting clamp 7 and the adjusting rod 10. The limiting clamp 7 is fixedly connected to the rotating disk 21. The rotating disk 21 is rotatably connected to the adjusting rod 10. A support plate 22 is provided on the side of the limiting clamp 7 near the adjusting rod 10. Guide posts 23 are provided at both ends of the bottom surface of the support plate 22. A through hole 24 matching the guide post 23 is provided on the top surface of the adjusting rod 10 near the guide post 23. An upper bolt 25 is provided in the middle of the bottom surface of the support plate 22. A control screw hole 26 cooperating with the upper bolt 25 is provided on the adjusting rod 10 near the upper bolt 25.

[0028] The working process of this utility model is as follows: When in use, open the movable box door, and drive the clamping plate 6 to rotate through the twisting position 12, which in turn drives the rotating screw 2 to rotate. This causes the rotating screw 2 to rotate out of the threaded hole 5, increasing the distance between the first clamping plate 3 and the second clamping plate 4. After the distance between the first clamping plate 3 and the second clamping plate 4 is the same as the distance between the side walls of the chassis, rotate the plate of the first clamping plate 3 to face the chassis. Then reverse the twisting position 12 to control the rotating screw 2 to move towards the threaded hole 5, reducing the distance between the first clamping plate 3 and the second clamping plate 4, and clamping the chassis. When installing, pay attention to the height between the limiting clamping plate and the lower edge of the movable box door.

[0029] Then loosen the locking bolt 16, adjust the swing angle of the rotating seat 8, pull out the locking pin 20, unlock the locking relationship between the insertion hole 19 and the positioning hole 18, pull out the adjusting rod 10 until the limit clamp 7 is close to the lower edge of the movable box door. Then, because the locking bolt 16 has been loosened, there is a distance between the top surface of the rotating seat 8 and the bottom surface of the thickened area. Adjust the distance between the clamping blocks on the limit clamp 7 to ensure that the distance between the clamping blocks is greater than the lower edge of the movable box door. Then reverse the locking bolt 16 again, the rotating seat 8 moves up, and at the same time, the top surface of the rotating seat 8 is pressed against the bottom surface of the thickened area. At the same time, the limit clamp 7 moves up, so that the clamping blocks are at the lower edge of the movable box door. Tighten the limit clamp 7 to clamp the lower edge of the movable box door, thereby achieving the limiting effect of the movable box door.

[0030] When the movable box door swings, the locking of the rotating seat 8 and the limiting clamp 7 ensures that the movable box door will not move.

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions 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, 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.

[0032] Furthermore, in the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 utility model based on the specific circumstances. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "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 utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. These modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A limiting device for cold and hot shock box maintenance, comprising a base plate, a mounting assembly and a limiting assembly, characterized in that: Both the mounting assembly and the limiting assembly are connected to the base plate. The mounting assembly includes a rotating screw, a first clamping plate, and a second clamping plate. A threaded hole that mates with the rotating screw is opened on one side of the base plate. The rotating screw is rotatably disposed in the threaded hole. The first clamping plate is sleeved on the end of the rotating screw away from the threaded hole. A pressure plate is provided at the end of the rotating screw away from the threaded hole. The second clamping plate is disposed on the side of the base plate away from the rotating screw. The limiting assembly includes a limiting clamp, a rotating seat, and a storage rod. The rotating seat is rotatably disposed below the base plate. The storage rod is disposed on one side of the rotating seat. An adjusting rod is movably disposed at the end of the storage rod away from the rotating seat. The limiting clamp is rotatably disposed at the end of the adjusting rod away from the storage rod.

2. The limiting device for repairing the cold and hot shock box according to claim 1, characterized in that: The first clamping plate and the rotating screw are slidably fitted together. The first clamping plate is provided with a clearance hole that matches the rotating screw at the position near the rotating screw. The clamping plate is fixedly connected to the rotating screw, and the side of the clamping plate away from the rotating screw is provided with a torsion position.

3. The limiting device for repairing the cold and hot shock box according to claim 1, characterized in that: The bottom surface of the substrate is provided with a thickened plate, the top surface of the thickened plate is fixedly connected to the bottom surface of the substrate, one side of the thickened plate is flush with one side of the substrate, and one side of the top surface of the thickened plate is provided with a reinforcing rib, which is fixedly connected to the side of the substrate.

4. The position limiting device for repairing the cold and hot shock box according to claim 3, characterized in that: The rotating seat is in contact with the bottom surface of the thickened plate. The bottom surface of the thickened plate is provided with a locking screw hole near the rotating seat. The bottom of the rotating seat is provided with a locking bolt. The screw of the locking bolt passes through the rotating seat and engages with the locking screw hole.

5. The position limiting device for repairing the cold and hot shock box according to claim 1, characterized in that: The storage rod has a receiving groove matching the adjusting rod at one end. The adjusting rod extends toward the receiving groove at one end. Positioning holes are distributed on the side of the adjusting rod. An insertion hole with the same diameter and concentricity as the positioning hole is opened on the side of the storage rod near the receiving groove. A locking pin is provided on the storage rod near the insertion hole. The pin post of the locking pin extends toward the insertion hole and the positioning hole.

6. The position limiting device for repairing the cold and hot shock box according to claim 1, characterized in that: The end of the adjusting rod away from the extension rod is rotatably connected to the limiting clamp. A rotating disk is provided between the bottom of the limiting clamp and the adjusting rod. The limiting clamp is fixedly connected to the rotating disk, and the rotating disk is rotatably connected to the adjusting rod. A support plate is provided on the side of the limiting clamp near the adjusting rod. Guide posts are provided at both ends of the bottom surface of the support plate. A guide hole matching the guide post is provided on the top surface of the adjusting rod near the guide post. An upper bolt is provided in the middle of the bottom surface of the support plate. A control screw hole matching the upper bolt is provided on the adjusting rod near the upper bolt.