Portable temperature detection device
By designing a portable temperature detection device, which utilizes a PTC heating element and lithium battery power, the problems of cumbersome inspection operations and safety hazards of the spherical belt temperature measurement device are solved, achieving fast, safe, and energy-saving temperature detection results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-03-06
AI Technical Summary
The existing inspection methods for temperature measuring devices on the forming belt are cumbersome to operate and pose safety hazards, making it difficult to detect temperature quickly and safely.
A portable temperature detection device was designed, which uses a PTC heating element and a lithium battery for power supply. The circuit is controlled by a manual switch and equipped with a PTC protective cover and a heat-resistant handle. It can achieve rapid heating and maintain a constant temperature. The lithium battery power supply is lightweight and environmentally friendly and energy-saving.
It achieves rapid, safe, and energy-efficient temperature detection, avoiding the safety hazards of lighting torches on site. The device can be recharged repeatedly, has anti-scalding and anti-slip functions, and consumes little energy.
Smart Images

Figure CN223976755U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of temperature detection equipment, and more specifically, to a portable temperature detection device. Background Technology
[0002] A spherical belt temperature measuring device is a device used to monitor the temperature of materials on a belt conveyor. It is commonly used in industrial production, such as mining, power, metallurgy, ports, and logistics. The main purpose of this device is to ensure the safe operation of belt conveyors and prevent fires or other safety accidents caused by excessively high material temperatures.
[0003] In existing technologies, it is crucial that the temperature measuring device is in normal working condition. Staff need to regularly inspect the temperature measuring device. There are currently two inspection methods: one is to install a fixed heating device near the temperature measuring device, activate the heating device when inspection is needed, and then adjust the temperature measuring device to face the heating device to determine its working status; the other is to light a torch on-site and use the torch to test the temperature measuring device. The first method is relatively cumbersome to adjust the temperature measuring device, takes a long time to inspect, and has poor operability, while the second method has uncontrollable flame temperature and poses a significant safety hazard.
[0004] Therefore, a portable temperature detection device is proposed to address the above problems. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a portable temperature detection device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A portable temperature detection device, comprising a portable temperature measuring rod, a temperature measuring rod battery box, a PTC adapter, a PTC protective sleeve, and a lithium battery. The portable temperature measuring rod has the temperature measuring rod battery box at one end and is L-shaped. The PTC adapter is located at the end of the portable temperature measuring rod away from the temperature measuring rod battery box, and a PTC protective sleeve is provided on the outer diameter surface of the end of the portable temperature measuring rod away from the temperature measuring rod battery box. A lithium battery is housed inside the temperature measuring rod battery box. A heat-resistant handle is provided on the outer diameter surface of the portable temperature measuring rod. A PTC heating element is installed inside the PTC adapter. The portable temperature measuring rod has an asbestos pad on one side, and a fixing plate is provided at the end of the portable temperature measuring rod that contacts the battery box. The fixing plate is bolted to the battery box via a second nut, a first washer, a second washer, and a fourth screw. A manual switch is provided on the upper surface of the fixing plate. A rubber pad is provided on the contact surface between the lithium battery inside the battery box and the fixing plate. The PTC adapter is bolted to one end of the portable temperature measuring rod via a third screw and a first nut. The PTC protective sleeve is bolted to the outer diameter surface of one end of the portable temperature measuring rod via a second screw. The PTC heating element is bolted to the PTC adapter via a first screw.
[0007] Preferably, the lithium battery inside the battery box of the temperature measuring rod is electrically connected to the PTC adapter via a wire, the PTC adapter is electrically connected to the PTC heating element, the wire between the lithium battery and the PTC adapter is electrically connected to the manual switch, the side end face of the PTC adapter has a through hole for placing the wire, and the side end face of the PTC protective sleeve has a groove for placing the wire.
[0008] Preferably, the contact surfaces of the portable temperature measuring rod, the temperature measuring rod battery box, the PTC adapter, the PTC protective sleeve, and the fixing plate with the first screw, the second screw, the third screw, and the fourth screw are all provided with limiting holes.
[0009] Preferably, one end of the PTC adapter is fitted and placed on one end of the portable temperature measuring rod, and the heat-resistant glove is fitted and installed on the outer diameter surface of the portable temperature measuring rod.
[0010] The technical effects and advantages of this utility model are as follows:
[0011] Compared with existing technologies, this portable temperature detection device uses a PTC heating element to heat the device. Once the temperature reaches the set value, it remains constant, offering advantages such as rapid heating, energy saving, and safety. Powered by a lithium battery, it is lightweight, rechargeable, and environmentally friendly. The device consists of a PTC protective case, a PTC heating element, a heat-resistant handle, a lithium battery, a temperature measuring rod battery box, a manual switch, and several screws. The lithium battery powers the PTC heating element, and the manual switch connects and disconnects the circuit. The PTC protective case protects the heating element from impacts, and the heat-resistant handle is made of rubber, providing anti-scalding and anti-slip functions. After the switch is turned on, the PTC protective case heats up to the predetermined temperature in approximately a few seconds. Then, the resistance of the thermistor increases dramatically, the current in the circuit decreases, and the thermistor temperature remains constant. Because the thermistor is only in contact with air, heat conduction is slow, resulting in low energy consumption and effective energy saving. Attached Figure Description
[0012] Figure 1 This is a side view of the structure of this utility model.
[0013] Figure 2 This is a top view of the structure of this utility model.
[0014] Figure 3 This is a three-dimensional structural diagram of the PTC adapter of this utility model.
[0015] Figure 4 This is a three-dimensional structural diagram of the PTC protective sleeve of this utility model.
[0016] The attached diagram is labeled as follows: 1. Portable temperature measuring rod; 2. Temperature measuring rod battery box; 3. PTC adapter; 4. PTC protective cover; 5. Lithium battery; 6. PTC heating element; 7. Asbestos pad; 8. Rubber pad; 9. Heat-resistant handle glove; 10. Manual switch; 11. First screw; 12. Second screw; 13. Third screw; 14. First nut; 15. Second nut; 16. First washer; 17. Second washer; 18. Fixing plate; 19. Fourth screw; 20. Placement slot. Detailed Implementation
[0017] 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.
[0018] Example
[0019] As attached Figures 1 to 4The portable temperature detection device shown includes a portable temperature measuring rod 1, a temperature measuring rod battery box 2, a PTC adapter 3, a PTC protective sleeve 4, and a lithium battery 5. The portable temperature measuring rod 1 has the temperature measuring rod battery box 2 attached to one end, and the portable temperature measuring rod 1 is L-shaped. The PTC adapter 3 is attached to the end of the portable temperature measuring rod 1 away from the temperature measuring rod battery box 2, and the PTC protective sleeve 4 is provided on the outer diameter surface of the end of the portable temperature measuring rod 1 away from the temperature measuring rod battery box 2. The lithium battery 5 is housed inside the temperature measuring rod battery box 2. A heat-resistant handle glove 9 is provided on the outer diameter surface of the portable temperature measuring rod 1. A PTC heating element 6 is installed inside the PTC adapter 3, and an asbestos pad 7 is provided on one side of the PTC heating element 6. The portable temperature measuring rod 1 and the temperature measuring rod battery box... A fixing plate 18 is provided at one end of the contact point, and the fixing plate 18 is bolted to the temperature measuring rod battery box 2 via a second nut 15, a first washer 16, a second washer 17, and a fourth screw 19. A manual switch 10 is provided on the upper surface of the fixing plate 18. A rubber pad 8 is provided on the contact surface between the lithium battery 5 inside the temperature measuring rod battery box 2 and the fixing plate 18. The PTC adapter 3 is bolted to one end of the portable temperature measuring rod 1 via a third screw 13 and a first nut 14. The PTC protective sleeve 4 is bolted to the outer diameter surface of one end of the portable temperature measuring rod 1 via a second screw 12. The PTC heating element 6 is bolted to the PTC adapter 3 via a first screw 11. Heating is achieved through the PTC heating element 6, avoiding the inconvenience of lighting a torch and adjusting the temperature measurement on site. Once the temperature reaches the set value, it will stop rising and remain constant. It features rapid heating, energy saving, and safety. Powered by a lightweight, rechargeable lithium battery (5), it is environmentally friendly and energy-efficient. The device consists of a PTC protective sleeve (4), a PTC heating element (6), a heat-resistant handle glove (9), a lithium battery (5), a temperature measuring rod battery box (2), a manual switch (10), and several screws. The lithium battery (5) powers the PTC heating element (6). The manual switch (10) connects and disconnects the circuit. The PTC protective sleeve (4) protects the PTC heating element (6) from damage. The heat-resistant handle glove (9) is a rubber sleeve that provides anti-scalding and anti-slip properties. After the switch is turned on, the PTC protective sleeve (4) heats up to the predetermined temperature in approximately 10 seconds. Then, the thermistor resistance increases stepwise, and the current in the circuit decreases. The thermistor maintains a constant temperature. Because the thermistor only contacts the air, its heat conduction is slow and its energy consumption is low, thus achieving effective energy saving. The lithium battery 5 inside the battery box 2 of the temperature measuring rod is electrically connected to the PTC adapter 3 via a wire. The PTC adapter 3 is electrically connected to the PTC heating element 6. The wire between the lithium battery 5 and the PTC adapter 3 is electrically connected to the manual switch 10. The side end face of the PTC adapter 3 has a through hole for placing the wire. The side end face of the PTC protective sleeve 4 has a groove 20 for placing the wire. Limiting holes are drilled on the contact surfaces of the portable temperature measuring rod 1, the battery box 2 of the temperature measuring rod, the PTC adapter 3, the PTC protective sleeve 4, and the fixing plate 18 with the first screw 11, the second screw 12, the third screw 13, and the fourth screw 19.One end of the PTC adapter 3 is fitted and placed on one end of the portable temperature measuring rod 1, and the heat-resistant glove 9 is specifically fitted and installed on the outer diameter surface of the portable temperature measuring rod 1.
[0020] The working process of this utility model is as follows: The PTC heating element 6 heats the material until it reaches a set temperature, at which point the temperature stops rising and remains constant. Powered by a lithium battery 5, it is lightweight, rechargeable, environmentally friendly, and energy-saving. The system consists of a PTC protective sleeve 4, a PTC heating element 6, a heat-resistant handle glove 9, a lithium battery 5, a temperature measuring rod battery box 2, a manual switch 10, and several screws. The lithium battery 5 supplies power to the PTC heating element 6. The manual switch 10 can connect and disconnect the circuit. The PTC protective sleeve 4 protects the PTC heating element 6 from impacts and damage. The heat-resistant handle glove 9 is a rubber sleeve with anti-scalding and anti-slip functions. After the switch is turned on, the PTC protective sleeve 4 reaches the predetermined temperature in approximately 10 seconds. Then, the resistance of the thermistor increases stepwise, the current in the circuit decreases, and the thermistor temperature remains constant. Because the thermistor only contacts the air, heat conduction is slow, energy consumption is low, and the inconvenience of lighting torches and adjusting the temperature measurement is avoided.
Claims
1. A portable temperature detection device, comprising a portable temperature detection long rod (1), a temperature detection rod battery box (2), a PTC adapter (3), a PTC protective sleeve (4) and a lithium battery (5), characterized in that: The portable temperature measuring long rod (1) is provided with a temperature measuring rod battery box (2) at one end, and the portable temperature measuring long rod (1) is L-shaped, the portable temperature measuring long rod (1) is provided with a PTC adapter (3) at the end away from the temperature measuring rod battery box (2), and the outer diameter surface of the end of the portable temperature measuring long rod (1) away from the temperature measuring rod battery box (2) is provided with a PTC protective sleeve (4), the inner cavity of the temperature measuring rod battery box (2) is provided with a lithium battery (5), the outer diameter surface of the portable temperature measuring long rod (1) is provided with a heat-resistant handle sleeve (9), the inner side of the PTC adapter (3) is mounted with a PTC heating sheet (6), one side of the PTC heating sheet (6) is provided with an asbestos pad (7), one end of the portable temperature measuring long rod (1) in contact with the temperature measuring rod battery box (2) is provided with a fixed plate (18), and the fixed plate (18) is bolted with the temperature measuring rod battery box (2) through a second nut (15), a first washer (16), a second washer (17) and a fourth screw (19), the upper end surface of the fixed plate (18) is provided with a manual switch (10), the contact surface of the lithium battery (5) in the temperature measuring rod battery box (2) and the fixed plate (18) is provided with a rubber pad (8), the PTC adapter (3) is bolted with one end of the portable temperature measuring long rod (1) through a third screw (13) and a first nut (14), the PTC protective sleeve (4) is bolted with the outer diameter surface of one end of the portable temperature measuring long rod (1) through a second screw (12), and the PTC heating sheet (6) is bolted with the PTC adapter (3) through a first screw (11).
2. The portable temperature detection device of claim 1, wherein: The lithium battery (5) in the inner cavity of the temperature measuring rod battery box (2) is electrically connected with the PTC adapter (3) through a wire, the PTC adapter (3) is electrically connected with the PTC heating sheet (6), the wire between the lithium battery (5) and the PTC adapter (3) is electrically connected with the manual switch (10), and the side end surface of the PTC adapter (3) is provided with a wire placing hole.
3. The portable temperature detection device of claim 1, wherein: The contact surfaces of the portable temperature measuring long rod (1), the temperature measuring rod battery box (2), the PTC adapter (3), the PTC protective sleeve (4) and the fixed plate (18) and the first screw (11), the second screw (12), the third screw (13) and the fourth screw (19) are provided with limiting holes.
4. The portable temperature detection device of claim 1, wherein: One end of the PTC adapter (3) is connected with the portable temperature measuring long rod (1), and the heat-resistant handle sleeve (9) is specifically sleeved and mounted on the outer diameter surface of the portable temperature measuring long rod (1).