Multi-point temperature detection device easy to disassemble

Abstract

The utility model discloses an easily detachable multi-point temperature detection device, which belongs to the technical field of temperature detection and comprises a protective shell, a plurality of thermistors and a PLC (programmable logic controller) electrically connected with the thermistors are arranged in the protective shell, a connecting cylinder is arranged at the bottom of the protective shell, an electric connecting piece is arranged at the inner bottom of the connecting cylinder, and the electric connecting piece is connected with the protective shell. The bottom of the electric connecting piece is in threaded connection with a plurality of plastic pipes, the bottoms of the plastic pipes are provided with a plurality of sensor heads, the sensor heads are electrically connected with the thermistor through the electric connecting piece, and the outer wall of the protective shell is provided with a displayer electrically connected with the PLC. According to the utility model, the plastic pipe and the connecting cylinder are connected through the electrical connecting piece, the sensor head is convenient to disassemble and replace, the cover plate is connected through the hasp, and the cover plate is convenient to uncover to replace the thermistor.

Description

Technical Field

[0001] This utility model relates to the field of temperature detection technology, specifically to an easily detachable multi-point temperature detection device. Background Technology

[0002] In many industrial production processes, the temperature of materials has a crucial impact on the quality of the final product. For example, in the food processing industry, different materials require specific temperature environments at different processing stages. In chocolate production, processes such as roasting cocoa beans and refining chocolate liquor can lead to problems with the taste, color, and texture of the chocolate if the material temperature is not properly controlled. By monitoring the temperature of materials at multiple points, the temperature at each critical location can be accurately monitored, thereby ensuring the stability of product quality.

[0003] In chemical production, the rate of chemical reactions is closely related to the temperature of the materials. For large-scale reactors, accurate temperature monitoring at different points inside the material allows for optimization of reaction conditions. For example, in the production of ammonia, the reaction of the raw material gases needs to take place at a suitable temperature. Multi-point temperature monitoring helps to adjust heating or cooling equipment in a timely manner, ensuring efficient reaction, reducing production cycles, and improving overall production efficiency.

[0004] Existing multi-point temperature detection devices are mainly used for insertion-type detection of the temperature at different depths inside solid particles. However, if it is necessary to detect different points at the same level of liquids or gases, the outer shell needs to be disassembled so that multiple sensors are distributed in different locations in space. Existing devices are not easy to disassemble, especially when replacing or repairing electronic components such as protective thermistors, which is quite cumbersome. Therefore, an easy-to-disassemble multi-point temperature detection device is needed. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an easily detachable multi-point temperature detection device.

[0006] The technical solution of this utility model is: an easily detachable multi-point temperature detection device, including a protective shell, inside which are provided multiple thermistors and a PLC controller electrically connected to the thermistors; a connecting cylinder is provided at the bottom of the protective shell, and an electrical connector is provided at the bottom of the connecting cylinder; multiple plastic tubes are threaded to the bottom of the electrical connector, and multiple sensor heads are provided at the bottom of the plastic tubes; the sensor heads are electrically connected to the thermistors through the electrical connector; a display is provided on the outer wall of the protective shell and electrically connected to the PLC controller; and a battery module is provided inside the protective shell for powering the PLC controller, thermistors, sensor heads, and display.

[0007] The electrical connector includes a columnar block and a plurality of through holes disposed inside the columnar block. A metal cylinder with internal threads is disposed inside the through holes. An insulating block is disposed at the top of the metal cylinder. A positive electrode post is disposed in the middle of the insulating block. The metal cylinder and the positive electrode post are electrically connected to the negative and positive electrodes of the thermistor, respectively.

[0008] Furthermore, the plastic tube includes a tube body, an insulating block two is provided at the top of the tube body, a metal ring is provided on the outer wall of the insulating block two, a positive electrode post two is provided in the middle of the insulating block two, the metal ring is electrically threaded to the inner wall of the metal cylinder, the positive electrode post two is electrically contacted with the positive electrode post one, the metal ring and the positive electrode post are electrically connected to the negative and positive electrodes of the sensor head respectively, and an insulating ring is provided at the connection between the insulating block two and the plastic tube.

[0009] Explanation: The positive circuit is connected through positive terminal one and positive terminal two, and the negative circuit is connected through the threaded connection between the metal ring and the metal cylinder. The insulating ring can prevent liquid from entering the gap between the metal ring and the metal cylinder, which would cause inaccurate test results.

[0010] Furthermore, a snap-fit ​​cylinder is threadedly connected to the lower outer wall of the connecting cylinder, the middle part of the snap-fit ​​cylinder is snapped into the lower surface of the insulating ring, and a protective tube is threadedly connected to the lower inner wall of the snap-fit ​​cylinder.

[0011] Note: The snap-fit ​​sleeve is engaged with the lower surface of the insulating ring to prevent the plastic tube from loosening.

[0012] Furthermore, the protective shell includes a shell and a cover hinged to the bottom of the shell, the cover having a sealing strip on its inner side, and the top of the cover being connected to the shell via a snap fastener.

[0013] Note: The above-mentioned latch is existing technology. This solution does not impose any special limitations. The connection method using latches makes disassembly easier when repairing or replacing internal electronic components.

[0014] The beneficial effects of this utility model are:

[0015] This invention connects the plastic tube and the connecting cylinder with an electrical connector, which facilitates the disassembly and replacement of the sensor head. The cover plate is connected by a snap fastener, which makes it easy to open the cover plate to replace the thermistor. In this invention, multiple plastic tubes can be bent at will, thereby realizing multi-point temperature detection at the same or different horizontal planes. Alternatively, the protective tube can be inserted into the material to be measured by threaded connection to detect temperature changes at different depths. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2This is a cross-sectional view of the connection between the electrical connector of this utility model and multiple plastic tubes.

[0018] Figure 3 This is a cross-sectional view of the connection between the through hole and a single plastic tube in this utility model.

[0019] Figure 4 This is a bottom view of the snap-fit ​​cylinder and insulating ring of this utility model.

[0020] Among them, 1-protective shell, 2-thermometer, 3-PLC controller, 4-connecting cylinder, 5-electrical connector, 6-plastic tube, 7-sensor head, 8-display, 9-battery module, 51-columnar block, 52-through hole, 53-metal cylinder, 54-insulating block one, 55-positive electrode post one, 61-tube body, 62-insulating block two, 63-metal ring, 64-positive electrode post two, 65-insulating ring, 56-clamping cylinder, 57-protective tube, 11-shell, 12-shell cover, 13-sealing strip, 14-fastener. Detailed Implementation

[0021] Example 1:

[0022] like Figure 1 As shown, an easily detachable multi-point temperature detection device includes a protective shell 1. Inside the protective shell 1, there are multiple thermistors 2 and a PLC controller 3 electrically connected to the thermistors 2. The bottom of the protective shell 1 is provided with a connecting cylinder 4. The bottom of the connecting cylinder 4 is provided with an electrical connector 5. The bottom of the electrical connector 5 is threaded with multiple plastic tubes 6. The bottom of the plastic tubes 6 is provided with multiple sensor heads 7. The sensor heads 7 are electrically connected to the thermistors 2 through the electrical connector 5. The outer wall of the protective shell 1 is provided with a display 8 electrically connected to the PLC controller 3. Inside the protective shell 1, there is a battery module 9 for powering the PLC controller 3, thermistors 2, sensor heads 7, and display 8.

[0023] like Figure 2 As shown, the electrical connector 5 includes a columnar block 51 and a plurality of through holes 52 disposed inside the columnar block 51. A metal cylinder 53 with internal threads is disposed inside the through hole 52. An insulating block 54 is disposed at the top of the metal cylinder 53. A positive electrode post 55 is disposed in the middle of the insulating block 54. The metal cylinder 53 and the positive electrode post 55 are electrically connected to the negative and positive electrodes of the thermistor 2, respectively.

[0024] This structure allows the plastic tube 6 to be connected by a threaded connection, while ensuring that the positive and negative terminals of the electrical connection are not affected.

[0025] like Figure 3As shown, the plastic tube 6 includes a tube body 61, an insulating block 62 at the top of the tube body 61, a metal ring 63 on the outer wall of the insulating block 62, a positive electrode post 64 in the middle of the insulating block 62, the metal ring 63 being electrically threaded to the inner wall of the metal cylinder 53, the positive electrode post 64 being electrically contacted with the positive electrode post 55, the metal ring 63 and the positive electrode post 55 being electrically connected to the negative and positive electrodes of the sensor head 7 respectively, and an insulating ring 65 at the connection between the insulating block 62 and the plastic tube 6.

[0026] The positive terminal is connected by positive terminal 55 and positive terminal 64, and the negative terminal is connected by the threaded connection between metal ring 63 and metal cylinder 53. The insulating ring 65 can prevent liquid from entering the gap between metal ring 63 and metal cylinder 53, which would lead to inaccurate test results.

[0027] Example 2:

[0028] like Figure 4 As shown, the difference between this embodiment and embodiment 1 is that in this embodiment, a snap-fit ​​cylinder 56 is threadedly connected to the lower outer wall of the connecting cylinder 4, the middle part of the snap-fit ​​cylinder 56 is snapped with the lower surface of the insulating ring 65, and a protective tube 57 is threadedly connected to the lower inner wall of the snap-fit ​​cylinder 56.

[0029] Compared to Embodiment 1, this embodiment prevents the plastic tube 6 from loosening by engaging the snap-fit ​​cylinder 56 with the lower surface of the insulating ring 65.

[0030] Example 3:

[0031] The difference between this embodiment and embodiment 2 is that the protective shell 1 in this embodiment includes a shell 11 and a shell cover 12 hinged to the bottom of the shell 11. The inner side of the shell cover 12 is provided with a sealing strip 13, and the top of the shell cover 12 is connected to the shell 11 by a buckle 14.

[0032] Compared to Embodiment 2, in this embodiment, the buckle 14 is existing technology. This solution is not particularly limited. The connection is made through the buckle 14, which makes it easier to disassemble when repairing or replacing internal electronic components.

[0033] The working method of the above embodiments includes the following steps:

[0034] S1. Open the cover 12 by unfastening the latch 14, and then replace the internal thermistor 2, PLC controller 3, display 8 and battery module 9.

[0035] S2. Through the threaded connection between the metal cylinder 53 and the metal ring 63, the sensor head 7 is connected to the negative circuit, and at the same time, the plastic tube 6 is fixed to the electrical connector, and the positive terminal 1 55 and the positive terminal 2 64 are in contact, thereby connecting the sensor head 7 to the negative circuit.

[0036] S3. The snap-fit ​​tube 56 is threadedly connected to the outer wall of the electrical connector 5. The middle part of the snap-fit ​​tube 56 is snapped into the lower surface of the insulating ring 65, thereby preventing the plastic tube 6 from loosening during use. When it is necessary to test multiple points at the same or different levels of the material to be tested, the plastic tube 6 can be bent to perform temperature testing at multiple points at the same time. When measuring the temperature at different depths of the material, the protective tube 57 can be directly inserted into the material for testing through threaded connection.

[0037] In the above embodiments, the thermistor 2, PLC controller 3, display 8, sensor head 7, and battery module 9 are all commercially available products. As long as they can achieve the functions of this utility model, they are acceptable. Those skilled in the art can choose to use them based on common sense, and no special limitations are made here.

Claims

1. A detachable multi-point temperature detecting device, characterized in that, The utility model provides a temperature sensor, including protection shell (1), a plurality of thermistor (2) and a PLC controller (3) are equipped inside protection shell (1) and are electrically connected with thermistor (2), the bottom of protection shell (1) is equipped with connecting cylinder (4), the inner bottom of connecting cylinder (4) is equipped with electric connection piece (5), the bottom of electric connection piece (5) is threadedly connected with a plurality of plastic tube (6), the bottom of plastic tube (6) is equipped with a plurality of sensor head (7), sensor head (7) is electrically connected with thermistor (2) through electric connection piece (5), the outer wall of protection shell (1) is equipped with display (8) and is electrically connected with PLC controller (3), protection shell (1) is equipped with battery module (9) for the power supply of PLC controller (3), thermistor (2), sensor head (7), display (8), Electric connection piece (5) includes cylindrical block (51) and a plurality of through holes (52) in cylindrical block (51), the through hole (52) is equipped with metal cylinder (53) with internal thread, the top of metal cylinder (53) is equipped with insulating block one (54), the middle part of insulating block one (54) is equipped with anode column one (55), and metal cylinder (53) and anode column one (55) are electrically connected with the negative pole and the positive pole of thermistor (2) respectively.

2. The easily detachable multi-point temperature detecting device according to claim 1, wherein, Plastic tube (6) includes pipe body (61), the top of pipe body (61) is equipped with insulating block two (62), the outer wall of insulating block two (62) is equipped with metal ring (63), the middle part of insulating block two (62) is equipped with anode column two (64), metal ring (63) is electrically connected with the inner wall of metal cylinder (53) in screw thread, anode column two (64) is electrically connected with anode column one (55), metal ring (63) and anode column one (55) are electrically connected with the negative pole and the positive pole of sensor head (7) respectively, and insulating ring (65) is arranged at the connecting place of insulating block two (62) and plastic tube (6).

3. The easily detachable multi-point temperature detecting device according to claim 2, wherein, The outer wall of connecting cylinder (4) is threadedly connected with clamping cylinder (56) below, the middle part of clamping cylinder (56) is clamped with the lower surface of insulating ring (65), and the lower inner wall of clamping cylinder (56) is threadedly connected with protection tube (57).

4. The easily detachable multi-point temperature detecting device according to claim 1, wherein, The protection shell (1) includes a shell body (11) and a shell cover (12) hinged to the bottom of the shell body (11), a sealing strip (13) is arranged on the inner side of the shell cover (12), and the shell cover (12) is connected to the shell body (11) by a buckle (14) on the top.

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