Protective cap for throwing type detection probe

By designing protective and disassembly components for the drop-type detection probe protective cap, the problem of thermocouple temperature sensing probe damage from external impacts is solved, ensuring measurement accuracy and safety, and improving detection efficiency and equipment lifespan.

CN223925852UActive Publication Date: 2026-02-17WUHAN CHANGJIN TECH DEV CO LTD
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Patent Information

Application Number
CN202520639312.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-02-17
Estimated Expiration
2035-04-07

AI Technical Summary

Technical Problem

Existing drop-type detection probes expose thermocouple temperature sensing probes to the external environment when not in use, making them susceptible to deformation, bending, twisting, or damage to the insulation layer due to impacts, which affects the accuracy and safety of temperature measurement.

Method used

A protective cap for a drop-type detection probe has been designed, comprising a protective component and a disassembly component. The protective component uses a buffer plate and a spring to cushion the impact force, while the disassembly component uses a threaded rod and a plug to enable quick installation and removal.

Benefits of technology

It effectively protects the thermocouple temperature sensing probe from impact damage, maintains measurement accuracy and insulation performance, improves detection efficiency, and extends the service life of the protective cap.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a protective cap for a throwing type detection probe, and particularly relates to the technical field of metallurgy, which comprises a mounting plate, a thermocouple temperature sensing probe is mounted at the bottom of the mounting plate, a penetrating block is fixedly connected to the center of the top of the mounting plate, and a protective assembly is arranged on the outer surface of the thermocouple temperature sensing probe. A dismounting assembly is arranged at the top of the mounting plate, the protection assembly comprises two connecting plates, and two inserting holes are formed in the bottom of the mounting plate. According to the utility model, through the arrangement of the protection assembly, when the thermocouple temperature sensing probe is impacted by other objects, the spring is extruded to deform, and the impact force is buffered and offset, so that the thermocouple wire is prevented from being deformed, bent, twisted and even fractured due to direct stress; the temperature sensitive characteristic and the thermoelectric conversion function are maintained, the insulation layer of the probe can be protected from being damaged by external collision, and the good insulation performance is maintained.
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Description

TECHNICAL FIELD

[0001] The utility model relates to metallurgical technology field, especially relate to a throw off type detection probe protection cap. BACKGROUND

[0002] In many fields such as industrial production, material research and quality control, the detection of object performance and quality is crucial. Precise detection can ensure that products meet standards, ensure production safety and promote technological innovation. With the continuous progress of science and technology and the rapid development of industry, the requirements for detection equipment and technology are also increasing, not only higher detection accuracy and efficiency are needed, but also detection equipment should be able to adapt to complex and variable detection environments and diversified detection objects.

[0003] The throw-off type detection probe adopts a unique throw-off detection method, which can approach the detected object through free fall motion without direct contact with the detected object, realizing remote detection. This method not only avoids damage to the surface of the object, but also expands the detection range, enabling effective detection of large objects, complex structure objects and difficult-to-access parts.

[0004] The thermocouple temperature sensing probe is usually directly exposed to the external environment when not in use, and may be collided by other objects in the external environment. Since the thermocouple temperature sensing probe is usually very precise, not only may the thermocouple wire be deformed, bent or twisted, resulting in inaccurate thermoelectric potential output of the thermocouple, and further causing large deviation in temperature measurement, but also the collision may damage the insulating layer of the probe, resulting in decreased insulation performance. Therefore, we propose a throw-off type detection probe protection cap to solve the above problems. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a throw-off type detection probe protection cap, which can effectively solve the above problems.

[0006] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0007] A throw-off type detection probe protection cap, comprising a mounting plate, a thermocouple temperature sensing probe mounted at the bottom of the mounting plate, a penetrating block fixedly connected at the center of the top of the mounting plate, a protection assembly provided on the outer surface of the thermocouple temperature sensing probe, and a dismounting assembly provided at the top of the mounting plate.

[0008] Preferably, the protection assembly comprises two connecting plates, two insertion holes are formed at the bottom of the mounting plate, the top outer surfaces of the two connecting plates are inserted into the inner walls of the insertion holes on the same side, and the two connecting plates are symmetrically arranged left and right with the center of the mounting plate as the symmetric point.

[0009] Preferably, the mounting plate bottom is provided with six connecting blocks, the six connecting blocks are arranged in a circumferential array with the thermocouple temperature sensing probe center as the axis, the top of the six connecting blocks is fixedly connected with the bottom of the same side connecting plate, the bottom inner wall of the connecting block is rotatably connected with a rotating plate, and the bottom outer surface of the six rotating plates is threadedly connected with a nut.

[0010] Preferably, the inner wall of the rotating plate is fixedly connected with a plurality of cylinders, the plurality of cylinders are arranged in a linear array, one end of the plurality of cylinders close to the center of the thermocouple temperature sensing probe is fixedly connected with a support plate, and the end of the support plate away from the rotating plate is in close contact with the outer surface of the thermocouple temperature sensing probe.

[0011] Preferably, the inner wall of the rotating plate is fixedly connected with a plurality of cylinders, the plurality of cylinders are arranged in a linear array, one end of the plurality of cylinders close to the center of the thermocouple temperature sensing probe is fixedly connected with a support plate, and the end of the support plate away from the rotating plate is in close contact with the outer surface of the thermocouple temperature sensing probe.

[0012] Preferably, the dismounting assembly comprises a fixed block, the bottom of the fixed block is fixedly connected with the top of the mounting plate, and the inner wall of the fixed block is threadedly connected with a threaded rod.

[0013] Preferably, the front surface of the threaded rod is fixedly connected with a rotating block, and the back surface of the threaded rod is rotatably connected with a connecting frame.

[0014] Preferably, the back surface of the connecting frame is fixedly connected with two plug blocks, two sliding grooves are formed in the top of the mounting plate, and the inner walls of the two sliding grooves are slidably connected with the bottom outer surfaces of the same side plug blocks.

[0015] Preferably, the front surface of the top of the two fixed blocks is provided with a plug hole, and the inner wall of the plug hole is inserted with the back surface of the same side plug block.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] 1、The utility model discloses a protection assembly is arranged, and when the thermocouple temperature sensing probe is impacted by other objects, the spring is extruded to make it deform, and the impact force is buffered and offset, not only can the deformation, bending, distortion and even rupture of the thermocouple wire due to direct force be avoided, and the sensitive characteristic of temperature and the thermoelectric conversion function can be maintained, but also the insulating layer of the probe can be protected from the damage of external collision, and good insulation performance can be maintained.

[0018] 2. This utility model, by setting up a disassembly component, specifically, when the device needs to be used, rotating the rotating block counterclockwise causes the two insert blocks to slide, releasing the restriction on the two connecting plates and allowing them to be removed directly. This not only allows the probe to be put into use quickly, saving the time spent on disassembling the protective component and significantly improving the overall efficiency of the detection work, but also avoids damage to the protective cap caused by improper force or improper use of tools, extending the service life of the protective cap and reducing the frequency of replacement of the protective cap. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the bottom structure of the mounting plate of this utility model;

[0021] Figure 3 This is a schematic diagram of the overall structure of the connecting plate of this utility model;

[0022] Figure 4 This is a schematic diagram of the overall structure of the support plate of this utility model;

[0023] Figure 5 This is a schematic diagram of the front cross-sectional structure of the rotating plate of this utility model;

[0024] Figure 6 This is a schematic diagram of the front cross-sectional structure of the cylindrical part of this utility model;

[0025] Figure 7 This is a schematic diagram of the top structure of the mounting plate of this utility model.

[0026] In the diagram: 1. Mounting plate; 11. Thermocouple temperature probe; 12. Insertion block; 2. Protection assembly; 21. Connecting plate; 22. Connecting block; 221. Rotating plate; 23. Cylinder; 231. Sliding rod; 232. Buffer plate; 233. Spring; 24. Support plate; 25. Nut; 3. Disassembly assembly; 31. Fixing block; 32. Threaded rod; 321. Rotating block; 33. Connecting frame; 34. Insertion block. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] Example 1:

[0029] like Figures 1-7As shown, this embodiment provides a protective cap for a drop-type detection probe, including a mounting plate 1. A thermocouple temperature probe 11 is mounted on the bottom of the mounting plate 1. An insertion block 12 is fixedly connected to the center of the top of the mounting plate 1. A protective component 2 is provided on the outer surface of the thermocouple temperature probe 11. A disassembly component 3 is provided on the top of the mounting plate 1.

[0030] The aforementioned thermocouple temperature probe 11 is a K-type 25, composed of nickel-chromium alloy and nickel-silicon alloy, and is currently the most widely used base metal thermocouple. Its measurement range is typically from -200℃ to 1300℃, and it has advantages such as good linearity, large thermoelectric potential, high sensitivity, good stability and uniformity, strong oxidation resistance, and low price. It can be used in oxidizing and inert atmospheres.

[0031] Specifically, in order to protect the thermocouple temperature probe when it is not in use, please refer to... Figure 3 and Figure 4 In this embodiment, the protection component 2 includes two connecting plates 21. The bottom of the mounting plate 1 has two insertion holes. The top outer surfaces of the two connecting plates 21 are inserted into the inner walls of the insertion holes on the same side. The two connecting plates 21 are arranged symmetrically to the left and right with the center of the mounting plate 1 as the center point.

[0032] Further reading Figure 3 In this embodiment, the bottom of the mounting plate 1 is provided with six connecting blocks 22. The six connecting blocks 22 are arranged in a circular array with the center of the thermocouple temperature probe 11 as the axis. The top of each of the six connecting blocks 22 is fixedly connected to the bottom of the connecting plate 21 on the same side. A rotating plate 221 is rotatably connected to the inner wall of the bottom of the connecting block 22. Nuts 25 are threadedly connected to the outer surface of the bottom of the six rotating plates 221.

[0033] During implementation, when it is necessary to inspect the thermocouple temperature probe 11, the nut 25 is turned counterclockwise to remove it, so that several rotating plates 221 can be released from their constraints. After the constraints are released, the rotating plates 221 can be rotated to move them away from the outer surface of the thermocouple temperature probe 11 without removing the protective cap, thus improving the practicality of the device.

[0034] Further reading Figure 4 and Figure 5 In this embodiment, a plurality of cylinders 23 are fixedly connected to the inner wall of the rotating plate 221. The plurality of cylinders 23 are arranged in a linear array. A support plate 24 is fixedly connected to one end of the plurality of cylinders 23 near the center of the thermocouple temperature probe 11. The end of the support plate 24 away from the rotating plate 221 is in close contact with the outer surface of the thermocouple temperature probe 11.

[0035] Further reading Figure 5 and Figure 6In this embodiment, a sliding rod 231 is slidably connected to the inner wall of several cylinders 23. A buffer plate 232 is fixedly connected to the end of several sliding rods 231 away from the thermocouple temperature probe 11. A spring 233 is fixedly connected to the end of several sliding rods 231 near the thermocouple temperature probe 11. The end of several springs 233 near the thermocouple temperature probe 11 is fixedly connected to the inner wall of the cylinder 23 on the same side.

[0036] During implementation, when the thermocouple temperature probe 11 is struck by another object, the object first contacts the surface of the corresponding buffer plate 232. Due to inertia, the buffer plate 232 moves towards the thermocouple temperature probe 11. During the movement of the buffer plate 232, it pushes several sliding rods 231 to slide in the inner wall of the corresponding cylinder 23. While the sliding rods 231 slide, they squeeze the spring 233, causing it to deform. The deformed spring 233 generates an elastic force opposite to the movement of the sliding rod 231. The elastic force generated by the spring 233 is proportional to the degree of deformation. The elastic force generated by the spring 233 buffers and cancels the impact force on the buffer plate 232. This not only prevents the thermocouple wire from deforming, bending, twisting, or even breaking due to direct force, ensuring that the thermocouple wire can maintain its normal structure and shape, maintain its temperature sensitivity and thermoelectric conversion function, but also protects the probe's insulation layer from damage by external impacts, maintains good insulation performance, and prevents problems such as leakage and short circuits caused by insulation failure.

[0037] Example 2:

[0038] This embodiment adds a disassembly component based on embodiment one.

[0039] Specifically, to enable the rapid installation and removal of protection components, please refer to... Figure 1 and Figure 7 In this embodiment, the disassembly component 3 includes a fixing block 31, the bottom of which is fixedly connected to the top of the mounting plate 1, and a threaded rod 32 is threadedly connected to the inner wall of the fixing block 31.

[0040] Further reading Figure 7 In this embodiment, a rotating block 321 is fixedly connected to the front of the threaded rod 32, and a connecting frame 33 is rotatably connected to the outer surface of the back of the threaded rod 32.

[0041] Further reading Figure 7 In this embodiment, two insert blocks 34 are fixedly connected to the back of the connecting frame 33, and two sliding grooves are opened on the top of the mounting plate 1. The inner walls of the two sliding grooves are slidably connected to the bottom outer surface of the insert block 34 on the same side.

[0042] Further reading Figure 7In this embodiment, both of the two fixing blocks 31 have insertion holes on their top front surfaces, and the inner walls of the two insertion holes are inserted into the outer surface of the back side of the insertion block 34 on the same side.

[0043] During implementation, when the device needs to be used, rotating the rotating block 321 counterclockwise causes the threaded rod 32 to rotate on the inner wall of the fixed block 31. As the threaded rod 32 rotates counterclockwise, it also causes the connecting frame 33 to move forward. During the movement of the connecting frame 33, it causes the two insert blocks 34 to slide forward in the inner wall of the corresponding sliding groove. After the insert block 34 slides a certain distance, its back outer surface will separate from the inner wall of the insertion hole opened on the top front of the connecting plate 21, releasing the restriction on the two connecting plates 21 and allowing them to be removed directly. This not only allows the probe to be put into use quickly, saving the time spent on disassembling the protective components and significantly improving the overall efficiency of the detection work, but also avoids damage to the protective cap caused by improper force or improper use of tools, extending the service life of the protective cap and reducing the replacement frequency of the protective cap.

[0044] The working principle of this utility model is as follows: When the thermocouple temperature sensing probe 11 is impacted by other objects, the objects will first come into contact with the surface of the corresponding buffer plate 232. Due to inertia, the buffer plate 232 will move towards the thermocouple temperature sensing probe 11. During the movement of the buffer plate 232, it will push several sliding rods 231 to slide in the inner wall of the corresponding cylinder 23. While the sliding rods 231 are sliding, they will squeeze the spring 233 to deform it. The deformed spring 233 will generate an elastic force opposite to the movement of the sliding rod 231. The elastic force generated by the spring 233 is proportional to the degree of deformation. The elastic force generated by the spring 233 will buffer and cancel the impact force on the buffer plate 232. This not only prevents the thermocouple wire from deforming, bending, twisting or even breaking due to direct force, but also ensures that the thermocouple wire can maintain its normal structure and shape, maintain its temperature sensitivity and thermoelectric conversion function. Furthermore, it can protect the probe's insulation layer from damage by external impacts, maintain good insulation performance, and prevent leakage, short circuit and other problems caused by insulation failure.

[0045] When it is necessary to inspect the thermocouple temperature probe 11, turn the nut 25 counterclockwise to remove it, so that the several rotating plates 221 can be released from their constraints. After the constraints are released, the rotating plates 221 can be rotated to move them away from the outer surface of the thermocouple temperature probe 11 without removing the protective cap, thus improving the practicality of the device.

[0046] When the device is needed, rotating the rotating block 321 counterclockwise causes the threaded rod 32 to rotate on the inner wall of the fixed block 31. As the threaded rod 32 rotates counterclockwise, it also causes the connecting frame 33 to move forward. During the movement of the connecting frame 33, it causes the two insert blocks 34 to slide forward in the inner wall of the corresponding sliding groove. After the insert block 34 slides a certain distance, its back outer surface will separate from the inner wall of the insertion hole opened on the top front of the connecting plate 21, releasing the restriction on the two connecting plates 21 and allowing them to be removed directly. This not only allows the probe to be put into use quickly, saving the time spent on disassembling the protective components and significantly improving the overall efficiency of the detection work, but also avoids damage to the protective cap caused by improper force or improper use of tools, extending the service life of the protective cap and reducing the replacement frequency of the protective cap.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A protective cap for a drop-type detection probe, comprising a mounting plate (1), wherein a thermocouple temperature sensing probe (11) is mounted on the bottom of the mounting plate (1), and an insert block (12) is fixedly connected to the center of the top of the mounting plate (1), characterized in that: The outer surface of the thermocouple temperature probe (11) is provided with a protective component (2), and the top of the mounting plate (1) is provided with a disassembly component (3); The protective component (2) includes two connecting plates (21). The mounting plate (1) has two insertion holes at its bottom. The top outer surfaces of the two connecting plates (21) are inserted into the inner walls of the insertion holes on the same side. The two connecting plates (21) are arranged symmetrically to the left and right with the center of the mounting plate (1) as the center.

2. The protective cap for the drop-type detection probe according to claim 1, characterized in that: The mounting plate (1) has six connecting blocks (22) at its bottom. The six connecting blocks (22) are arranged in a circular array with the center of the thermocouple temperature probe (11) as the axis. The top of each of the six connecting blocks (22) is fixedly connected to the bottom of the connecting plate (21) on the same side. A rotating plate (221) is rotatably connected to the inner wall of the bottom of the connecting block (22). The outer surface of the bottom of the six rotating plates (221) is threaded with a nut (25).

3. The protective cap for the drop-type detection probe according to claim 2, characterized in that: The inner wall of the rotating plate (221) is fixedly connected to a plurality of cylinders (23), which are arranged in a linear array. The ends of the plurality of cylinders (23) near the center of the thermocouple temperature probe (11) are fixedly connected to a support plate (24). The end of the support plate (24) away from the rotating plate (221) is in close contact with the outer surface of the thermocouple temperature probe (11).

4. The protective cap for the drop-type detection probe according to claim 3, characterized in that: Each of the cylinders (23) has a sliding rod (231) slidably connected to its inner wall. The ends of the sliding rods (231) away from the thermocouple temperature probe (11) are all fixedly connected to a buffer plate (232). The ends of the sliding rods (231) near the thermocouple temperature probe (11) are all fixedly connected to a spring (233). The ends of the springs (233) near the thermocouple temperature probe (11) are all fixedly connected to the inner wall of the cylinder (23) on the same side.

5. The protective cap for the drop-type detection probe according to claim 1, characterized in that: The disassembly assembly (3) includes a fixing block (31), the bottom of which is fixedly connected to the top of the mounting plate (1), and a threaded rod (32) is threadedly connected to the inner wall of the fixing block (31).

6. The protective cap for the drop-type detection probe according to claim 5, characterized in that: The threaded rod (32) is fixedly connected to a rotating block (321) on its front side, and a connecting frame (33) is rotatably connected to the outer surface of the back side of the threaded rod (32).

7. The protective cap for the drop-type detection probe according to claim 6, characterized in that: The back of the connecting frame (33) is fixedly connected to two inserts (34), and the top of the mounting plate (1) has two sliding grooves. The inner walls of the two sliding grooves are slidably connected to the bottom outer surface of the inserts (34) on the same side.

8. The protective cap for the drop-type detection probe according to claim 7, characterized in that: Both of the fixing blocks (31) have insertion holes on their top front sides, and the inner walls of both insertion holes are inserted into the outer surface of the back side of the insertion block (34) on the same side.