A joint temperature rise detection device

Abstract

The utility model relates to joint temperature rise detection technical field discloses a joint temperature rise detection device, including sliding rheostat, the outside sliding connection of sliding rheostat has sliding ring, the rear end fixed connection of sliding ring has the limit post, the front end fixed connection of limit post has fixed link no.

Description

Technical Field

[0001] This utility model relates to the field of joint temperature rise detection technology, and in particular to a joint temperature rise detection device. Background Technology

[0002] A joint temperature rise detection device uses a temperature sensor and a handheld thermometer to monitor the surface temperature of the joint in real time. The data is processed by the acquisition module and transmitted to the control terminal. When the temperature exceeds the set threshold, the alarm unit triggers an audible and visual warning and can be linked to power-off protection. The device has the characteristics of high precision and fast response and is suitable for scenarios such as power components and industrial equipment, effectively preventing failures caused by joint overheating.

[0003] The connector temperature rise detection device consists of a temperature sensor, a signal conditioning circuit, a main control unit, and an alarm module. The temperature sensor collects the connector temperature in real time, and the signal is amplified and filtered before being sent to the main control chip for processing. When the temperature exceeds a set threshold, the main control chip drives an audible and visual alarm and can cut off the circuit via a relay. The entire device adopts an industrial-grade design and is suitable for overheat monitoring and protection in scenarios such as power equipment and industrial connectors.

[0004] In existing joint temperature rise detection devices for sliding rheostats, the connecting wires often loosen and fall off due to mechanical vibration during the movement of the sliding ring or material expansion caused by current heating, affecting the stability of current regulation. In addition, there is a lack of effective cable fixing structure, relying only on simple clamping or welding methods, which can easily lead to poor contact or even open circuit risk under long-term high current conditions. Therefore, a joint temperature rise detection device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a connector temperature rise detection device, which aims to improve the problem in the prior art where the connecting wires in the sliding rheostat often loosen and fall off due to mechanical vibration or material expansion caused by current heating during the movement of the sliding ring, thus affecting the stability of current regulation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A joint temperature rise detection device includes a sliding rheostat, a sliding ring slidably connected to the outer side of the sliding rheostat, a limit post fixedly connected to the rear end of the sliding ring, a fixing rod fixedly connected to the front end of the limit post, a rotating rod rotatably connected to the outer side of the fixing rod, a retractable disc fixedly connected to the outer side of the rotating rod, a retractable disc two slidably connected to the rear end of the retractable disc two, a housing fixedly connected to the bottom end of the retractable disc two, a connecting wire slidably connected to the bottom end of the housing, and a quick-change assembly fixedly connected to the outer side of the sliding rheostat.

[0008] As a further description of the above technical solution:

[0009] The quick-change assembly includes an auxiliary plate, a sliding rheostat fixedly connected to the inner side of the auxiliary plate, an upper locking block fixedly connected to the outer side of the auxiliary plate, a fixing block slidably connected to the inner side of the upper locking block, a spring fixedly connected inside the fixing block, a pressing rod fixedly connected to the front end of the spring, and a locking pin fixedly connected to the outer side of the pressing rod.

[0010] As a further description of the above technical solution:

[0011] The outer shell has two fixed rods 2 fixedly connected inside, and a retractable disc 1 is slidably connected to the outer side of the two fixed rods 2;

[0012] As a further description of the above technical solution:

[0013] A fixing rod is slidably connected to the inner side of the connecting line, and the outer side of the fixing rod is fixedly connected to the inner side of the outer shell.

[0014] As a further description of the above technical solution:

[0015] The outer side of the pressing rod is slidably connected to the inner side of the fixed block, and the bottom end of the fixed block is fixedly connected to a base plate;

[0016] As a further description of the above technical solution:

[0017] The inner side of the upper locking block is slidably connected to the outer side of the locking post, and the outer side of the locking post is slidably connected to the inner side of the fixing block.

[0018] As a further description of the above technical solution:

[0019] Four foot pads are fixedly connected to the bottom end of the base plate, and a connector is fixedly connected to the top end of the base plate.

[0020] As a further description of the above technical solution:

[0021] The bottom of the foot pad is fixedly connected to a base, and a thermometer is placed on the top of the base.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, through the linkage design of the limiting post and the rotating rod, the connecting wire is firmly clamped between the sliding ring and the outer shell by the squeezing action of the first fixed rod and the second fixed rod. This effectively solves the problem of easy detachment and loosening of the connecting wire of the traditional sliding rheostat, ensuring the connection stability during high current testing. At the same time, the rotating rod's twisting operation simplifies the fastening process and improves the installation efficiency.

[0024] 2. In this utility model, the upper locking block can be quickly unlocked and locked by the cooperation of the pressing rod and the spring. The sliding rheostat can be disassembled or installed by simply pressing the pressing rod, avoiding the cumbersome operation of traditional bolt fixing and significantly shortening the maintenance time. The self-resetting design of the spring further ensures the tight engagement of the locking post and the locking groove, taking into account both the convenience of operation and safety. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a joint temperature rise detection device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the base plate of the joint temperature rise detection device proposed in this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0029] Legend:

[0030] 1. Base; 2. Thermometer; 3. Connector; 4. Connecting wire; 5. Sliding rheostat; 6. Sliding ring; 7. Base plate; 8. Auxiliary plate; 9. Foot pad; 10. Limiting post; 11. Rotating rod; 12. Retracting disc one; 13. Retracting disc two; 14. Fixing rod one; 15. Fixing rod two; 16. Outer shell; 17. Pressing rod; 18. Fixing block; 19. Locking post; 20. Upper locking block; 21. Spring. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1 to 3One embodiment of this utility model includes a sliding rheostat 5, which controls the circuit current by adjusting the resistance value, thereby changing the load being detected and simulating the current change under actual working conditions. A sliding ring 6 is slidably connected to the outer side of the sliding rheostat 5. The sliding ring 6 can slide flexibly on the surface of the sliding rheostat 5. By changing the contact position with the rheostat, the current can be precisely adjusted, ensuring the stability and controllability of the current parameters during the detection process. A limit post 10 is fixedly connected to the rear end of the sliding ring 6. The limit post 10 can limit the offset of the sliding ring 6 during the sliding process, ensuring that it slides smoothly along the axis of the rheostat and preventing the detection data deviation caused by shaking.

[0033] The fixing rod 14 provides a stable connection base for the connecting wire 4. Its structural design can withstand a certain amount of tension, preventing the connecting wire 4 from falling off during device operation. A rotating rod 11 is rotatably connected to the outer side of the fixing rod 14. The rotating rod 11 tightens or loosens the fixing rod 14 through rotation. The operation is simple and convenient, allowing users to quickly complete the installation and removal of the connecting wire 4. A retractable disc 12 is fixedly connected to the outer side of the rotating rod 11. A retractable disc 2 13 is slidably connected to the rear end of the retractable disc 12. The retractable disc 12 and the retractable disc 2 13 cooperate with each other. The gap between the two can be reduced by squeezing, which enhances the clamping force on the fixing rod 14 and ensures the reliability of the connection of the connecting line 4. When the retracting plate 13 is subjected to external force, it forms a tight fit with the retracting plate 12, which further improves the fixing effect of the connecting line 4 and effectively prevents it from loosening during sliding. The bottom end of the retracting plate 13 is fixedly connected to the outer shell 16. The outer shell 16 provides a protective barrier for the entire device, which can effectively block external interference factors, ensure the stable operation of internal components, and also provide installation support for the internal structure.

[0034] A connecting wire 4 is slidably connected to the bottom of the outer casing 16. As a key component for circuit transmission, the sliding connection of the connecting wire 4 with the outer casing 16 allows the connecting wire 4 to move smoothly when adjusting the position of the sliding ring 6, without affecting the detection operation due to jamming. A quick-replacement component is fixedly connected to the outside of the sliding rheostat 5. This component greatly improves the maintenance efficiency of the device. When the sliding rheostat 5 fails, the user can complete the replacement in a short time, reducing equipment downtime. A fixing rod 14 is fixedly connected to the front end of the limiting post 10. Two fixing rods 15 are fixedly connected inside the outer casing 16. The fixing rods 14 are limited and squeezed from multiple directions to ensure that the connecting wire 4 will not be displaced under any working conditions. A retractable disc 12 is slidably connected to the outside of the two fixing rods 15. During the sliding process, the retractable disc 12 achieves dynamic fastening of the fixing rods 14 through frictional resistance and squeezing action with the fixing rods 15, adapting to the installation requirements of connecting wires 4 of different specifications.

[0035] The inner side of the connecting line 4 is slidably connected to the fixing rod 14. This connection method allows the connecting line 4 to fit tightly against the fixing rod 14, reducing contact resistance when transmitting current, reducing heat loss, and improving the accuracy of detection data. The outer side of the fixing rod 14 is fixedly connected to the inner side of the outer shell 16, providing a reliable support point for the entire fixing structure of the connecting line 4, ensuring that the internal structure remains stable during the operation of the device.

[0036] Reference Figure 2 , Figure 4 The quick-change component includes an auxiliary plate 8, which assists in fixing and positioning the sliding rheostat 5, enabling it to quickly find its correct position during installation and improving replacement efficiency. The inner side of the auxiliary plate 8 is fixedly connected to the outer side of the sliding rheostat 5, and an upper locking block 20 is fixedly connected to the outer side of the auxiliary plate 8. A fixing block 18 is slidably connected to the inner side of the upper locking block 20, and a spring 21 is fixedly connected inside the fixing block 18. A pressing rod 17 is fixedly connected to the front end of the spring 21, and a locking post 19 is fixedly connected to the outer side of the pressing rod 17. The fixing block 18 provides installation space for the locking post 19 and the spring 21. Its internal sliding groove design allows the locking post 19 to slide flexibly within a specified range, realizing locking and unlocking functions. The spring 21 can store elastic potential energy after being compressed by external force. When the external force is removed, the potential energy is released to push the locking post 19 to reset, automatically locking the sliding rheostat 5, making the operation very convenient.

[0037] The upper locking block 20 and the locking post 19 cooperate to form a locking structure, which can firmly fix the sliding rheostat 5 and ensure that it will not loosen due to vibration or other factors during operation. The pressing rod 17 provides the user with an operating force point. The user only needs to press the pressing rod 17 to easily control the movement of the locking post 19, so as to quickly replace the sliding rheostat 5. The operation process is labor-saving and efficient. The locking post 19 cooperates with the locking groove of the upper locking block 20 to achieve mechanical locking of the sliding rheostat 5. This locking method has a simple structure, high reliability, and can effectively ensure the safe operation of the device.

[0038] The outer side of the pressing rod 17 is slidably connected to the inner side of the fixing block 18. The sliding process of the pressing rod 17 within the fixing block 18 is smooth and stable, ensuring a comfortable feel for the user during operation. It also ensures the accuracy of each movement of the locking post 19, preventing situations where the locking is not in place. The bottom end of the fixing block 18 is fixedly connected to the base plate 7. The base plate 7 provides a stable installation foundation for the entire quick-change assembly, dispersing the pressure generated during device operation and enhancing the stability of the overall structure. The bottom end of the base plate 7 is fixedly connected to four foot pads 9, and the bottom end of the foot pads 9 is fixedly connected to the base 1. The foot pads 9 can effectively reduce the vibration transmission between the device and the base 1, while increasing friction to prevent the device from shifting during operation, providing a stable operating environment for testing. The base 1, as the supporting component of the device, with its large area and stable structural design, can withstand the entire weight and external force of the device during operation, ensuring that the device is placed stably.

[0039] A connector 3 is fixedly connected to the top of the base plate 7. The connector 3 is the access point for detecting the current. Together with the sliding rheostat 5, connecting wire 4 and other components, it forms a complete detection circuit to ensure that the current can pass smoothly and achieve effective detection of temperature rise. A thermometer 2 is placed on the top of the base 1. The thermometer 2 is used to monitor the temperature change of the connector 3 in real time. Its high-precision sensing element can quickly and accurately capture temperature data and feed the data back to the operator, providing a reliable basis for temperature rise detection. The inner side of the upper locking block 20 is slidably connected to the outer side of the locking post 19, and the outer side of the locking post 19 is slidably connected to the inner side of the fixing block 18. This double sliding connection structure makes the locking and unlocking process between the upper locking block 20 and the fixing block 18 smooth and unobstructed, and can provide strong clamping force in the locked state to ensure that the sliding rheostat 5 is installed firmly.

[0040] Working principle: In order to connect the connecting wire 4 to the sliding ring 6 on the sliding rheostat 5, which controls the current adjustment by sliding back and forth, and to ensure that it will not fall off during the sliding process, a limiting post 10 is fixedly connected to the rear end of the sliding ring 6. The connecting wire 4 is inserted into the outside of the fixing rod 14 fixed inside the limiting post 10. At this time, the user rotates the rotating rod 11 to press the fixing rod 15 inward. Since the bottom end of the outer shell 16 is fixed to the inside of the outer shell 16, the two will be squeezed to reduce the gap between them until the fixing rod 14 is completely fixed. At this time, the connecting wire 4 located at the bottom end of the outer shell 16 and the front end of the sliding ring 6 is fastened between the two and will not be affected by sliding or other shaking factors.

[0041] During long-term use, the sliding rheostat 5 may be damaged due to the frequent passage of currents of various intensities. In this case, it needs to be replaced or repaired. In order to quickly realize the operation and ensure personnel safety, a quick replacement component is provided at the connection between the auxiliary plate 8 at both ends and the base plate 7. The user only needs to press the pressing rod 17 to release the upper locking block 20 from the fixed block 18. By pressing the pressing rod 17 inward, the locking pin 19 located inside the pressing rod 17 will move backward until it reaches the bottom of the slide groove. The locking slot of the upper locking block 20 will disengage from the locking pin 19. At this time, the upper locking block 20 can be pulled upward to cancel the fixation and replace or repair the sliding rheostat 5. When replacing with a new sliding rheostat 5, simply press the pressing rod 17, put the upper locking block 20 on the fixed block 18, and the spring 21 located at the bottom of the pressing rod 17 will release the pressure and lock the locking pin 19 into the locking slot of the upper locking block 20.

[0042] 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 joint temperature rise detection device, comprising a sliding rheostat (5), characterized in that: A sliding ring (6) is slidably connected to the outside of the sliding rheostat (5). A limit post (10) is fixedly connected to the rear end of the sliding ring (6). A fixing rod (14) is fixedly connected to the front end of the limit post (10). A rotating rod (11) is rotatably connected to the outside of the fixing rod (14). A retractable disc (12) is fixedly connected to the outside of the rotating rod (11). A retractable disc (13) is slidably connected to the rear end of the retractable disc (12). A housing (16) is fixedly connected to the bottom end of the retractable disc (13). A connecting wire (4) is slidably connected to the bottom end of the housing (16). A quick-change assembly is fixedly connected to the outside of the sliding rheostat (5).

2. The joint temperature rise detection device according to claim 1, characterized in that: The quick-change assembly includes an auxiliary plate (8), the inner side of which is fixedly connected to the outer side of the sliding rheostat (5). An upper locking block (20) is fixedly connected to the outer side of the auxiliary plate (8). A fixing block (18) is slidably connected to the inner side of the upper locking block (20). A spring (21) is fixedly connected inside the fixing block (18). A pressing rod (17) is fixedly connected to the front end of the spring (21). A locking post (19) is fixedly connected to the outer side of the pressing rod (17).

3. The joint temperature rise detection device according to claim 1, characterized in that: The outer shell (16) is internally fixedly connected to two fixing rods (15), and the outer sides of the two fixing rods (15) are slidably connected to a retractable disc (12).

4. The joint temperature rise detection device according to claim 1, characterized in that: The inner side of the connecting line (4) is slidably connected to a fixing rod (14), and the outer side of the fixing rod (14) is fixedly connected to the inner side of the outer shell (16).

5. The joint temperature rise detection device according to claim 2, characterized in that: The outer side of the pressing rod (17) is slidably connected to the inner side of the fixed block (18), and the bottom end of the fixed block (18) is fixedly connected to the base plate (7).

6. The joint temperature rise detection device according to claim 2, characterized in that: The inner side of the upper locking block (20) is slidably connected to the outer side of the locking post (19), and the outer side of the locking post (19) is slidably connected to the inner side of the fixing block (18).

7. The joint temperature rise detection device according to claim 5, characterized in that: The bottom end of the base plate (7) is fixedly connected with four foot pads (9), and the top end of the base plate (7) is fixedly connected with a connector (3).

8. The joint temperature rise detection device according to claim 7, characterized in that: The bottom of the foot pad (9) is fixedly connected to a base (1), and a thermometer (2) is placed on the top of the base (1).

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