Thermal resistor anti-theft structure and thermal resistor set

Abstract

The utility model relates to a thermal resistor antitheft structure and a thermal resistor suit, the thermal resistor antitheft structure comprises a thermistor and a support part, the support part comprises a pedestal, an end cover and a lead seal, the pedestal is internally provided with an accommodating cavity, and the thermistor is embedded in the accommodating cavity; the end cover is buckled at the port of the base, and the end cover is connected with the base through a bolt; an anti-theft ring is arranged on the surface of the side, close to the base, of the end cover, a pair of anti-theft holes is formed in the side wall of the end, close to the end cover, of the base, the lead seal comprises a seal body and a seal line, and the seal line penetrates through the seal body and is connected with the anti-theft holes and the anti-theft ring. The anti-theft ring in the end cover and the anti-theft hole in the base are connected through the lead seal, when the bolt between the end cover and the base is loosened and detached, it can be guaranteed that the end cover is buckled on the base, a certain anti-theft protection measure is achieved, and the cable connector is protected from being manually detached. If the lead seal fails, the failure can be found in time, metering errors and metering objection are prevented, and the production cost is prevented from being influenced.

Description

A thermistor anti-theft structure and thermistor kit Technical Field

[0001] This utility model relates to the field of RTD packaging technology, and in particular to an anti-theft structure and RTD kit. Background Technology

[0002] Resistance temperature detectors (RTDs) measure temperature and temperature-related parameters based on the property that the resistance of a conductor or semiconductor changes with temperature. A certain current is passed through a resistive element, a data acquisition device records the voltage across the element, and Ohm's law is used to calculate the resistance value, from which the temperature is derived.

[0003] In existing technologies, the installation of a resistance temperature detector (RTD) involves encapsulating the resistive element in a dedicated housing to form an RTD kit, which is then installed at the detection potential. To facilitate wiring to the internal resistive element, the entire kit housing is designed as a detachable unit. However, in critical applications, such as trade measurement, the measured value of the RTD directly impacts the settlement amount. If the RTD kit is disassembled and not detected promptly, it can easily lead to measurement discrepancies, negatively impacting the company's economic interests. Summary of the Invention

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the defect in the prior art that the thermal resistance kit cannot be detected in time after being disassembled, which easily leads to measurement discrepancies.

[0005] To solve the above-mentioned technical problems, this utility model provides a thermistor anti-theft structure, comprising:

[0006] Thermistor;

[0007] The support includes a base, an end cap, and a lead seal. The base has an internal cavity in which the thermistor is embedded. The end cap is fastened to the port of the base and is connected to the base by bolts. An anti-theft ring is provided on the surface of the end cap near the base. A pair of anti-theft holes are provided on the side wall of the base near the end cap. The lead seal includes a sealing body and a sealing wire. The sealing wire passes through the sealing body and connects the anti-theft holes and the anti-theft ring.

[0008] In one embodiment of this utility model, the anti-theft ring is disposed at the center position of the end cap surface.

[0009] In one embodiment of this utility model, a card platform is provided in the accommodating cavity, and the end face of the thermistor is attached to the card platform.

[0010] In one embodiment of this utility model, both the end cap and the base are provided with connecting holes that mate with the bolts.

[0011] In one embodiment of this utility model, a wire hole is provided on the side wall of the base near the end cap.

[0012] In one embodiment of this utility model, a sealing ring is provided between the end cap and the base.

[0013] In one embodiment of the present invention, the surface of the end cap is provided with a first sealing groove, the surface of the base is provided with a second sealing groove, and the sealing ring is pressed between the first sealing groove and the second sealing groove.

[0014] In one embodiment of this utility model, the surface of the base is provided with external threads in the circumferential direction.

[0015] In one embodiment of the present invention, a sealing boss is provided on the surface of the base, the sealing boss is disposed close to the external thread, and the sealing boss is disposed at the end of the external thread near the end cap.

[0016] A resistance temperature detector (RTD) kit, including the aforementioned RTD anti-theft structure.

[0017] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0018] This utility model discloses an anti-theft structure and set for resistance temperature detectors (RTDs). The anti-theft ring inside the end cap and the anti-theft hole on the base are connected by a lead seal. Even after the bolts between the end cap and the base are loosened and removed, the end cap remains securely fastened to the base, providing a certain level of anti-theft protection and preventing unauthorized removal of the cable connector. If the lead seal fails, it can be detected promptly, preventing measurement errors and discrepancies, and avoiding impacts on production costs. Attached Figure Description

[0019] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 is a schematic diagram of the overall internal structure of this utility model;

[0021] Figure 2 is a schematic diagram of the base in Figure 1;

[0022] Figure 3 is a schematic diagram of the end cap in Figure 1;

[0023] Figure 4 is a schematic diagram of the lead seal in Figure 1;

[0024] Explanation of reference numerals in the accompanying drawings: 1. Thermistor; 2. Support; 21. Base; 22. End cap; 23. Lead seal; 24. Bolt; 25. Sealing ring; 26. Connecting hole; 211. Receiving cavity; 212. Anti-theft hole; 213. Locking platform; 214. Wire passage hole; 215. Second sealing groove; 216. External thread; 217. Sealing boss; 221. Anti-theft ring; 222. First sealing groove; 231. Seal body; 232. Sealing wire. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0026] Referring to Figures 1-4, this utility model discloses a thermistor anti-theft structure, comprising:

[0027] Thermistor 1;

[0028] The support part 2 includes a base 21, an end cap 22, and a lead seal 23. The base 21 has an internal cavity 211, and the thermistor 1 is embedded in the cavity 211. The end cap 22 is fastened to the port of the base 21, and the end cap 22 is connected to the base 21 by bolts 24. An anti-theft ring 221 is provided on the surface of the end cap 22 near the base 21. A pair of anti-theft holes 212 are provided on the side wall of the base 21 near the end cap 22. The lead seal 23 includes a sealing body 231 and a sealing line 232. The sealing line 232 passes through the sealing body 231 and connects the anti-theft holes 212 and the anti-theft ring 221.

[0029] In this utility model, the base 21 serves as the main support component, one end of the end cap 22 is used for sealing, the base 21 and the end cap 22 are detachably connected by bolts 24, one end of the base 21 is used to connect to the device under test; the thermistor 1 is embedded in the accommodating cavity 211 of the base 21 as a detection unit, and during the installation of the thermistor 1, the detection end extends into the base 21.

[0030] Specifically, an anti-theft ring 221 is provided on the side of the end cap 22 near the base 21, and a pair of anti-theft holes 212 are provided on the side wall of the base 21. The function of the lead seal 23 is to connect the anti-theft ring 221 to the anti-theft holes 212. In the actual assembly process, the thermistor 1 is first placed into the cavity of the base 21, and then wired. Then the sealing wire 232 is passed through one of the anti-theft holes 212 into the interior of the base 21, then through the anti-theft ring 221, and finally out through the other anti-theft hole 212, and locked and fixed by the seal body 231; finally, the end cap 22 and the base 21 are connected by bolts 24. The lead seal 23 is a one-time locking component with anti-tampering properties, and its structure must ensure that once sealed, it cannot be opened by non-destructive means.

[0031] This invention connects the anti-theft ring 221 inside the end cap 22 and the anti-theft hole 212 on the base 21 via a lead seal 23. Even after the bolt 24 between the end cap 22 and the base 21 is loosened and removed, the end cap 22 can still be secured to the base 21, achieving a certain level of anti-theft protection and preventing the cable connector from being tampered with. If the lead seal 23 fails, it can be detected promptly, preventing measurement errors and discrepancies, and avoiding impact on production costs.

[0032] Furthermore, the anti-theft ring 221 is located at the center of the surface of the end cap 22.

[0033] Specifically, the anti-theft ring 221 is placed at the center of the end cap 22, which can prevent radial displacement of the end cap 22 after the bolt 24 is removed. As a preferred embodiment of this utility model, a sealing ring can also be provided on the side of the cover facing the base 21. The outer diameter of the sealing ring is the same as the inner diameter of the port of the base 21, which can also prevent radial displacement of the end cap 22.

[0034] Furthermore, a card stage 213 is provided inside the accommodating cavity 211, and the end face of the thermistor 1 is in contact with the card stage 213.

[0035] Specifically, during the installation process, the thermistor 1 is attached to the mounting plate 213 to ensure the stability of the thermistor 1 installation and prevent the thermistor 1 from shaking internally during use, which would affect the accuracy of the measurement values.

[0036] Furthermore, both the end cap 22 and the base 21 are provided with connection holes 26 that mate with the bolts 24.

[0037] Specifically, in the actual assembly process, after the end cap 22 is fastened to the base 21, the bolt 24 is inserted into the connecting hole 26 to connect the end cap 22 and the base 21.

[0038] Furthermore, a wire hole 214 is provided on the side wall of the base 21 near the end cap 22.

[0039] Specifically, during the actual assembly process, after the thermistor 1 is placed inside the base 21, the signal wire is threaded through the wire hole 214 and then connected to the thermistor 1. The value measured by the thermistor 1 is fed back to the host computer via the signal wire.

[0040] During actual installation, the installation position of the RTD kit varies. To minimize the impact of the environment on the measured values, it is necessary to ensure the airtightness of the connection between the end cap 22 and the base 21. Specifically, a sealing ring 25 is provided between the end cap 22 and the base 21. The sealing ring 25 is pressed between the end cap 22 and the base 21, which can effectively prevent the entry of moisture.

[0041] Furthermore, the surface of the end cap 22 is provided with a first sealing groove 222, the surface of the base 21 is provided with a second sealing groove 215, and the sealing ring 25 is pressed between the first sealing groove 222 and the second sealing groove 215.

[0042] Specifically, during the actual assembly process, the sealing ring 25 is embedded in the first sealing groove 222, and the positions of the first sealing groove 222 and the second sealing groove 215 are corresponding. After the end cap 22 and the base 21 are engaged, the sealing ring 25 is pressed into the first sealing groove 222 and the second sealing groove 215 to seal the connection.

[0043] Furthermore, the surface of the base 21 is provided with external threads 216.

[0044] Specifically, during the actual installation process, one end of the base 21 is connected to the point to be measured, and the base 21 is detachably connected to the point to be measured through the external thread 216 on the surface of the base 21.

[0045] Furthermore, a sealing boss 217 is provided on the surface of the base 21. The sealing boss 217 is provided in close contact with the external thread 216, and the sealing boss 217 is located at the end of the external thread 216 near the end cap 22.

[0046] Specifically, during the actual installation process, the external thread 216 of the base 21 is connected to the point to be measured. After the connection, the sealing boss 217 can seal the connection between the base 21 and the point to be measured, preventing steam and other substances in the point to be measured from leaking from the connection and affecting the accuracy of the measurement results.

[0047] A resistance temperature detector (RTD) kit includes the anti-theft structure of the RTD described above.

[0048] In summary, this utility model introduces an anti-theft structure and a set of resistance temperature detectors (RTDs). This utility model uses a lead seal 23 to connect the anti-theft ring 221 inside the end cap 22 to the anti-theft hole 212 on the base 21. Even after the bolt 24 between the end cap 22 and the base 21 is loosened and removed, the end cap 22 can still be secured to the base 21, achieving a certain level of anti-theft protection and preventing the cable connector from being tampered with. If the lead seal 23 fails, it can be detected promptly, preventing measurement errors and discrepancies, and avoiding impact on production costs. Furthermore, the sealing ring 25 between the end cap 22 and the base 21 prevents rainwater from entering the set during rain, thus avoiding rainwater affecting the measurement values ​​of the RTD.

[0049] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A thermistor anti-theft structure, characterized in that, include: Thermistor; The support includes a base, an end cap, and a lead seal. The base has an internal cavity in which the thermistor is embedded. The end cap is fastened to the port of the base and is connected to the base by bolts. An anti-theft ring is provided on the surface of the end cap near the base. A pair of anti-theft holes are provided on the side wall of the base near the end cap. The lead seal includes a sealing body and a sealing wire. The sealing wire passes through the sealing body and connects the anti-theft holes and the anti-theft ring.

2. The anti-theft structure of the thermal resistor according to claim 1, characterized in that: The anti-theft ring is located at the center of the end cap surface.

3. The anti-theft structure of the thermal resistor according to claim 1, characterized in that: A card plate is provided inside the accommodating cavity, and the end face of the thermistor is attached to the card plate.

4. The anti-theft structure of the thermal resistor according to claim 1, characterized in that: Both the end cap and the base are provided with connection holes that mate with the bolts.

5. The anti-theft structure of the thermal resistor according to claim 1, characterized in that: The base has a wire hole on the side wall near the end cap.

6. The anti-theft structure of the thermal resistor according to claim 1, characterized in that: A sealing ring is provided between the end cap and the base.

7. The anti-theft structure of the thermal resistor according to claim 6, characterized in that: The end cap has a first sealing groove on its surface, the base has a second sealing groove on its surface, and the sealing ring is pressed between the first sealing groove and the second sealing groove.

8. The anti-theft structure of the thermal resistor according to claim 1, characterized in that: The base has external threads on its circumferential surface.

9. The anti-theft structure of the thermal resistor according to claim 8, characterized in that: The base has a sealing boss on its surface. The sealing boss is closely attached to the external thread and is located at the end of the external thread near the end cap.

10. A resistance temperature detector (RTD) kit, characterized in that, Including the thermal resistance anti-theft structure as described in any one of claims 1-9.

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