Wiring device for thermal resistor verification

Abstract

The utility model discloses a wiring device for thermal resistor verification, which belongs to the field of thermal resistor verification and comprises a thermal resistor and a detection clamp, the thermal resistor comprises a resistor module and a probe connected to the resistor module through an electric wire, the wiring device further comprises a wiring mechanism, and the wiring mechanism is arranged on one side of an upper terminal of the resistor module. The wiring mechanism comprises an insulating base and an insulating cover hinged to one side of the insulating base. According to the utility model, through the arrangement of the detection clamp, when the universal meter is used for detection, the insulation cover is opened, the exposed part of the probe wire is exposed, then the detection clamp is clamped at the exposed part of the probe wire, and the probe wire is clamped by the two pairs of plastic clamps, so that the probe wire can be prevented from loosening when being clamped by the detection clamp; and the lower end of the detection clamp is provided with the semicircular groove, so that the detection clamp is in full contact with the exposed part of the probe wire, the verification accuracy is improved, and the probe does not need to be taken out from the thermal resistor in the whole verification process.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance thermometer verification, in particular to a wiring device for resistance thermometer verification. Background Technique

[0002] A resistance thermometer is an industrial temperature measurement sensor, usually used in conjunction with display and pointer instruments, recording instruments, and industrial intelligent regulators. When the resistance thermometer has been used for a long time, it is necessary to verify the probe of the resistance thermometer with a multimeter to measure the indication error of the resistance thermometer for calibration.

[0003] Since the probe of the resistance thermometer is usually arranged in the thin tube of the resistance thermometer, it is necessary to draw out the probe of the resistance thermometer from the thin tube for wiring verification during the verification process. This process is rather troublesome and not conducive to the rapid verification of the resistance thermometer. Content of the Utility Model

[0004] To solve the defects existing in the prior art, the utility model provides a wiring device for resistance thermometer verification.

[0005] To solve the above technical problems, the utility model provides the following technical solutions:

[0006] A wiring device for resistance thermometer verification of the utility model includes a resistance thermometer and a detection clip. The resistance thermometer includes a resistance module and a probe connected to the resistance module through a wire. It further includes a wiring mechanism. The wiring mechanism is arranged on one side of the terminal at the upper end of the resistance module. The wiring mechanism includes an insulating seat and an insulating cover hinged on one side of the insulating seat. Two pairs of plastic clips for clamping the probe wire are arranged on the insulating seat, and slots matching the plastic clips are opened at the corresponding positions on the insulating cover.

[0007] As a preferred technical solution of the utility model, an insulating spring for helping the detection clip to reset is arranged on the detection clip, and a semi-circular groove matching the probe wire is arranged at the lower end of the detection clip.

[0008] As a preferred technical solution of the utility model, placing grooves corresponding to the probe wire are opened on both the insulating seat and the insulating cover, and supporting strips for supporting the probe wire are arranged on both the insulating seat and the insulating cover.

[0009] As a preferred technical solution of the utility model, a clamping frame is arranged at the edge of one side of the insulating seat, and a clamping plate matching the clamping frame is arranged at the edge of one side of the insulating cover.

[0010] As a preferred technical solution of the present utility model, convex grains are provided at four corners of the upper end of the insulating seat, and concave holes corresponding to the positions of the convex grains are provided on one side surface of the insulating cover corresponding to the insulating seat.

[0011] As a preferred technical solution of the present utility model, a sealing groove is provided on the upper surface of the insulating seat, and a sealing strip that is snap-fitted into the sealing groove is provided on one side surface of the insulating cover close to the insulating seat.

[0012] As a preferred technical solution of the present utility model, a metal ring sleeved on the terminal of the resistance module is provided on the wire of the probe, and a detection wire inserted into the multimeter is connected to the detection clip.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. For this wiring device for calibrating thermal resistors, by providing a detection clip, when using a multimeter for detection, the insulating cover is lifted to expose the bare part of the probe wire, and then the detection clip is clamped on the bare part of the probe wire. Since the probe wire is clamped by two pairs of plastic clips, it can prevent loosening when the detection clip clamps the probe wire. And because a semi-circular groove is provided at the lower end of the detection clip, the detection clip makes full contact with the bare part of the probe wire, improving the accuracy of calibration. The entire calibration process does not require removing the probe from the thermal resistor.

[0015] 2. For this wiring device for calibrating thermal resistors, by providing a wiring mechanism, when connecting the wire on the probe to the terminal on the resistance module, the wire of the probe is placed on the insulating seat so that the wire of the probe is located in two pairs of plastic clips on the insulating seat, and then the insulating seat and the insulating cover are snap-fitted together. At this time, the two pairs of plastic clips on the insulating seat will snap into the corresponding slots on the insulating cover, clamping the probe wire with the two pairs of plastic clips to prevent it from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0017] Figure 1 is the front view structural schematic diagram of a wiring device for calibrating thermal resistors of the present utility model;

[0018] Figure 2 is the connection structural schematic diagram of the resistance module and the insulating seat of a wiring device for calibrating thermal resistors of the present utility model;

[0019] Figure 3 is the connection structural schematic diagram of the insulating seat and the insulating cover of a wiring device for calibrating thermal resistors of the present utility model;

[0020] Figure 4 Schematic diagram of the connection structure between the detection clip and the insulation base of a wiring device for calibrating a thermal resistor according to the present utility model;

[0021] Figure 5 Schematic diagram of the detection clip structure of a wiring device for calibrating a thermal resistor according to the present utility model.

[0022] In the figure: 1, resistance module; 2, probe; 3, detection clip; 4, insulation base; 5, insulation cover; 6, plastic clip; 7, slot; 8, insulation spring; 9, semi-circular groove; 10, placement groove; 11, support strip; 12, card frame; 13, card board; 14, convex particle; 15, concave hole; 16, sealing groove; 17, sealing strip. Specific embodiments

[0023] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present utility model, and are not used to limit the present utility model.

[0024] Embodiment: As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a wiring device for calibrating a thermal resistor according to the present utility model includes a thermal resistor and a detection clip 3. The thermal resistor includes a resistance module 1 and a probe 2 connected to the resistance module 1 through a wire. It further includes a wiring mechanism. The wiring mechanism is arranged on one side of the terminal of the resistance module 1. The wiring mechanism includes an insulation base 4 and an insulation cover 5 hinged to one side of the insulation base 4. The insulation base 4 is provided with two pairs of plastic clips 6 for clamping the wires of the probe 2, and slots 7 are provided at positions corresponding to the plastic clips 6 on the insulation cover 5.

[0025] Among them, an insulation spring 8 for helping the detection clip 3 to reset is arranged on the detection clip 3, and a semi-circular groove 9 matching the wires of the probe 2 is arranged at the lower end of the detection clip 3. By arranging the insulation spring 8, the elastic force of the insulation spring 8 is utilized to enable the detection clip 3 to clamp the wires of the probe 2. By arranging the semi-circular groove 9, it is convenient for the detection clip 3 to make full contact with the wires of the probe 2, improving the accuracy of calibration.

[0026] Placement grooves 10 corresponding to the wires of the probe 2 are provided on both the insulation base 4 and the insulation cover 5, and support strips 11 for supporting the wires of the probe 2 are arranged on both the insulation base 4 and the insulation cover 5. By arranging the placement grooves 10, it is convenient for the insulation base 4 and the insulation cover 5 to clamp the wires of the probe 2. By arranging the support strips 11, it is convenient for the insulation base 4 and the insulation cover 5 to fix the wires of the probe 2.

[0027] A clamping frame 12 is provided at one side edge of the insulating base 4, and a clamping plate 13 that cooperates with the clamping frame 12 is provided at one side edge of the insulating cover 5. By providing the clamping frame 12 and the clamping plate 13, the insulating base 4 and the insulating cover 5 can be clamped together.

[0028] Convex grains 14 are provided at the four corners at the upper end of the insulating base 4, and concave holes 15 corresponding to the positions of the convex grains 14 are provided on the side surface of the insulating cover 5 corresponding to the insulating base 4. By providing the convex grains 14 and the concave holes 15, it is convenient to align the insulating base 4 and the insulating cover 5 together.

[0029] A sealing groove 16 is provided on the upper surface of the insulating base 4, and a sealing strip 17 that is clamped in the sealing groove 16 is provided on the side surface of the insulating cover 5 close to the insulating base 4. By providing the sealing groove 16 and the sealing strip 17, the clamping effect between the insulating base 4 and the insulating cover 5 can be further improved.

[0030] A metal ring that is sleeved on the terminal of the resistance module 1 is provided on the wire of the probe 2, and a detection wire that is inserted into the multimeter is connected to the detection clip 3. By providing the metal ring on the probe 2, it is convenient to connect the probe 2 to the terminal of the resistance module 1.

[0031] During operation, the outer insulating skin is peeled off at a suitable position on the wire of the probe 2, and then the wire on the probe 2 is connected to the terminal on the resistance module 1, so that the wire of the probe 2 is located in the two pairs of plastic clips 6 on the insulating base 4. Then, the insulating base 4 and the insulating cover 5 are clamped together through the clamping frame 12 and the clamping plate 13. The exposed section of the wire of the probe 2 will be clamped by the two support strips 11 on the insulating base 4 and the insulating cover 5, and the two pairs of plastic clips 6 on the insulating base 4 will be clamped into the corresponding slots 7 on the insulating cover 5. The two pairs of plastic clips 6 will further clamp the wire of the probe 2 to prevent it from loosening, ensuring that the connection between the resistance module 1 and the probe 2 will not become loose when the thermal resistor is in use;

[0032] When it is necessary to calibrate the thermal resistor, only need to loosen the plastic screw that fastens the terminal of the resistance module 1 and the metal ring on the probe 2, so that the metal ring on the probe 2 is separated from the terminal of the resistance module 1, then the resistance module 1 and the probe 2 can be disconnected. Then, lift the insulating cover 5, and then clamp the detection clip 3 inserted into the multimeter on the exposed part of the wire of the probe 2. Because the wire of the probe 2 is clamped by the two pairs of plastic clips 6, it can prevent loosening when the detection clip 3 clamps the wire of the probe 2. And because a semi-circular groove 9 is provided at the lower end of the detection clip 3, the detection clip 3 is in full contact with the exposed part of the wire of the probe 2, improving the accuracy of the calibration. The whole calibration process does not require taking out the probe 2 from the thermal resistor.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A wiring device for thermal resistance calibration, characterized in that: The invention comprises a thermal resistor and a detection clamp (3), wherein the thermal resistor comprises a resistor module (1) and a probe (2) connected to the resistor module (1) via an electric wire, and further comprises a wiring mechanism, wherein the wiring mechanism is arranged on one side of a terminal on the resistor module (1), and the wiring mechanism comprises an insulating seat (4) and an insulating cover (5) hinged on one side of the insulating seat (4), wherein the insulating seat (4) is provided with two pairs of plastic clips (6) for clamping the electric wires of the probe (2), and the insulating cover (5) is provided with matching slots (7) at positions corresponding to the plastic clips (6).

2. A wiring device for thermal resistance verification according to claim 1, characterized in that: The detection clamp (3) is provided with an insulating spring (8) for helping the detection clamp (3) to reset, and the lower end of the detection clamp (3) is provided with a semicircular groove (9) that matches the wire of the probe (2).

3. A thermal resistance calibration wiring device according to claim 1, characterized in that: The insulating seat (4) and the insulating cover (5) are both provided with a placement groove (10) corresponding to the probe (2) wire, and the insulating seat (4) and the insulating cover (5) are both provided with a support bar (11) for supporting the probe (2) wire.

4. A wiring device for thermal resistance verification according to claim 1, characterized in that: A card frame (12) is provided at one side edge of the insulating seat (4), and a card plate (13) matching with the card frame (12) is provided at one side edge of the insulating cover (5).

5. A thermal resistance calibration wiring device according to claim 1, characterized in that: The four corners of the upper end of the insulating seat (4) are all provided with protrusions (14), and a concave hole (15) corresponding to the position of the protrusion (14) is opened on a side surface of the insulating cover (5) corresponding to the insulating seat (4).

6. A thermal resistance calibration wiring device according to claim 1, characterized in that: The upper surface of the insulating seat (4) is provided with a sealing groove (16), and a sealing strip (17) which is engaged in the sealing groove (16) is provided on a side surface of the insulating cover (5) close to the insulating seat (4).

7. A wiring device for thermal resistance verification according to claim 1, characterized in that: The electric wire of the probe (2) is provided with a metal ring which is sleeved on the terminal of the resistance module (1), and the detection clip (3) is connected to a detection wire which is inserted into a multimeter.

Images