On-off device of explosion-proof high-temperature-resistant electric tracing band

Abstract

The utility model discloses an explosion-proof high-temperature-resistant electric tracing band on-off device, which comprises a fixed plate, an on-off control box is fixedly arranged at the top of the right side of the fixed plate, a first controller is embedded and fixed on the right side of the on-off control box, an adjusting knob matched with the first controller is further arranged on the right side of the on-off control box, and the first controller is connected with the first controller. The right side of the fixing plate is fixedly connected with a mounting box with an opening in the right side, and the first controller is electrically connected with a connecting wire. According to the utility model, through the arrangement of a series of structures, the electric tracing band can directly penetrate into the connecting terminal, and the quick connection of the electric tracing band and the first controller is realized by matching with a pressing and fixing mode, and the connection mode does not need multiple penetrating actions and does not need winding operation, so that the operation of personnel is facilitated, and the connection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of switching equipment, in particular to a switching device for an explosion-proof and high-temperature resistant electric heating belt. Background Art

[0002] The electric heating tape has the characteristic of high temperature resistance. It is composed of a conductive polymer and two parallel metal wires and an insulating sheath. Its characteristics are that the conductive polymer has a very high positive temperature coefficient characteristic and is connected in parallel with each other. It can automatically adjust the output power as the temperature of the heated system changes, automatically limit the heating temperature, and can be arbitrarily shortened or extended within a certain range for use. It allows multiple cross-overlaps without the worry of high-temperature hot spots and burning. The Chinese patent publication number is CN207320812U. The name of the invention is an on-off device for an explosion-proof and high-temperature resistant electric heating tape. Its structure includes a fixing box, a protective shell, a fixing block, and a temperature detection device. The fixing box is embedded and connected to the upper surface of the protective shell and fixedly connected by a built-in buckle. The fixing block and the protective shell are connected to the fixing box. The protective shell is an integrally formed structure, the fixed blocks are connected to the surfaces of both sides of the protective shell, the temperature detection device is embedded and connected to the bottom of the inside of the protective shell and reinforced by built-in buckles, the fixed blocks are arranged below the two sides of the fixed box through the protective shell, the temperature detection device is arranged below the fixed box through the protective shell, the fixed box is provided with a display device, an adjustment knob, a fixing sheet, and a protruding block, the protruding block and the fixed box are an integrally formed structure, the protruding block is connected to the upper surface of the fixed box, the display device is embedded in the upper surface of the fixed box, and the display device and the fixed box are interference fit; however, the existing explosion-proof and high-temperature resistant electric heating belt on-off devices still have the problems of being inconvenient to disassemble, install and replace, inconvenient to thread the electric heating belt and poor explosion-proof effect;

[0003] For this purpose, application number: 201921486761.7 discloses an on-off device for explosion-proof and high-temperature resistant electric heating belt that is easy to disassemble and assemble, including an installation fixing plate, an on-off control box, a display, an adjustment knob, a controller, a fixing plate structure that is easy to disassemble and assemble, a lockable electric heating belt connecting pipe structure, an explosion-proof electric heating belt restraining plate structure, an explosion-proof box, a card slot, a shielding cover, an observation window, a hand pull ring, a buckle and a connecting pipe, and the on-off control box is screwed to the upper right position of the installation fixing plate; the setting of the fixed slide plate and the movable card block in the device is conducive to adjusting the position of the movable card block, meeting the needs of installation and fixing, and increasing convenience; the setting of the internal sealing tube and the embedded tube is conducive to the insertion, connection and fixing of the electric heating belt to ensure the normal operation of the electric heating belt; the setting of the temperature detector, the explosion-proof box, the shielding cover and the observation window is conducive to detecting the temperature around the electric heating belt and improving the safety of application;

[0004] The above-mentioned patent with application number 201921486761.7 discloses that the internal sealing tube and the embedded tube are provided to facilitate the insertion, connection and fixation of the electric heating tape. However, it is relatively cumbersome to connect it with the controller. The electric heating tape must enter the explosion-proof box, be wrapped around the outer surface of the winding wheel as needed, and be clamped in the storage box. Under the action of the restraining card, it plays a further restraining and fixing role. Finally, the electric heating tape is passed upward through the series tube and connected to the controller in the on-off control box. The entire threading and connection process is relatively cumbersome. Due to the small space inside the explosion-proof box, it is inconvenient to operate when winding, and multiple penetration actions are required. Based on the above situation, it can be seen that the above-mentioned patent has the disadvantage that the electric heating tape cannot be quickly connected to the controller. To solve this problem, we propose an on-off device for explosion-proof and high-temperature resistant electric heating tape. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an on-off device for an explosion-proof and high-temperature resistant electric heating belt.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A switching device for an explosion-proof and high-temperature resistant electric heating tape, comprising a fixing plate, a switching control box is fixedly installed on the top right side of the fixing plate, a first controller is embedded and fixed on the right side of the switching control box, and an adjusting knob matched with the first controller is also installed on the right side of the switching control box. The principle of the adjustment knob matching with the first controller is the prior art and will not be elaborated on here. The right side of the fixing plate is fixedly connected to an installation box with an opening on the right side, the first controller is electrically connected to a connecting wire, the bottom end of the connecting wire extends into the installation box and is fixedly connected to a terminal connecting mechanism, the terminal connecting mechanism is connected to the electric heating tape, the first controller and the electric heating tape are connected through the terminal connecting mechanism and the connecting wire, and a penetration mechanism is embedded and fixed on the bottom of the installation box. The bottom end of the electric heating tape passes through the penetration mechanism, and the penetration mechanism is used to allow the electric heating tape to pass into the installation box. A thermal insulation pad is fixedly connected to the left inner wall of the installation box, and the right side of the thermal insulation pad is in active contact with the left side of the electric heating tape. A compression monitoring mechanism is in close contact with the right side of the electric heating tape. The compression monitoring mechanism is used to compress the electric heating tape and can also detect the temperature and compression force of the electric heating tape. The compression monitoring mechanism is electrically connected to the first controller. A circular frame is rotatably installed on the top right side of the installation box, and a transparent plate is fixedly sleeved in the circular frame. The transparent plate is sleeved on the compression monitoring mechanism. A reminder mechanism is fixedly connected to the top right side of the circular frame, and the reminder mechanism is electrically connected to the compression monitoring mechanism. The setting of the reminder mechanism can remind personnel after the electric heating tape is compressed.

[0008] Preferably, the terminal connection mechanism includes a connecting terminal fixedly connected to the bottom end of the connecting wire, the connecting end of the connecting terminal is in close contact with the top of the electric heating tape, an insulating block is fixedly connected to the left inner wall of the connecting terminal, the right side of the insulating block is in movably contact with the left side of the connecting part of the electric heating tape, the right side of the connecting part of the electric heating tape is in close contact with an insulating pressing bolt, the connecting terminal is threadedly sleeved on the insulating pressing bolt, and the electric heating tape and the connecting terminal can be fixedly connected by the cooperation of the insulating pressing bolt and the insulating block. The electric heating tape is electrically connected to the first controller by the cooperation of the connecting terminal and the connecting wire, which is a conventional wiring method in the prior art.

[0009] Preferably, the penetration mechanism includes a first connecting tube embedded and fixed at the bottom of the installation box, the top of the first connecting tube extends into the installation box, a connecting transverse tube is provided at the bottom of the installation box, the left end of the connecting transverse tube is connected and fixed to the bottom end of the first connecting tube by a same telescopic rubber sleeve, the elastic force of the telescopic rubber sleeve can be utilized to provide the connecting transverse tube with space for angular rotation, the bottom end of the electric heating tape passes through the first connecting tube, the telescopic rubber sleeve and the connecting transverse tube in sequence, the top of the electric heating tape is in close contact with a T-shaped compression bolt, the connecting transverse tube threaded sleeve is arranged on the T-shaped compression bolt, and the electric heating tape is pressed and fixed in the connecting transverse tube by the T-shaped compression bolt.

[0010] Preferably, the compression monitoring mechanism includes a compression plate, the left side of the compression plate is in close contact with the right side of the electric heating tape, and the electric heating tape is compressed by the compression plate. A temperature sensor is embedded and fixed on the left side of the compression plate, and the left side of the temperature sensor is a detection end and is in close contact with the right side of the electric heating tape. The temperature sensor monitors the temperature of the electric heating tape, and the temperature sensor is electrically connected to the first controller. A pressure sensor is embedded and fixed on the top left side of the compression plate, and the left side of the pressure sensor is in movably contact with the right side of the electric heating tape. The pressure sensor is used to detect the extrusion force during compression. A T-shaped screw is rotatably installed on the right side of the compression plate, and the right side of the T-shaped screw extends to the right side of the transparent plate. The transparent plate is threadedly sleeved on the T-shaped screw. The transparent plate is threadedly connected to the T-shaped screw in a manner that the T-shaped screw can be moved while the T-shaped screw rotates. Two L-shaped guide rods are fixedly connected to the top right side of the compression plate, and the transparent plate is slidably sleeved on the two L-shaped guide rods. The L-shaped guide rods have a lateral guiding effect on the compression plate.

[0011] Preferably, the reminder mechanism includes a second controller and an audible and visual alarm fixedly connected to the top right side of the circular frame, and the pressure sensor and the audible and visual alarm are both electrically connected to the second controller.

[0012] Preferably, a threaded groove is provided at the right bottom of the installation box, a T-shaped bolt is threadedly sleeved in the threaded groove, the circular frame is threadedly sleeved on the T-shaped bolt, and a fixed connection between the circular frame and the installation box is achieved through the T-shaped bolt.

[0013] Preferably, four L-shaped mounting rods are fixedly connected to the left side of the fixing plate, and two L-shaped mounting rods opposite to each other are symmetrically arranged. A first bolt hole is opened on the left inner wall of the L-shaped mounting rod, and a T-shaped fixing bolt is threadedly sleeved in the first bolt hole. The entire device can be fixed at a desired position by matching the L-shaped mounting rod and the T-shaped fixing bolt.

[0014] Compared with the existing technology, the beneficial effects of the utility model are:

[0015] 1. Through the cooperation of the terminal connection mechanism, the penetration mechanism, the compression monitoring mechanism, the circular frame and the transparent plate, the electric heating tape can be directly penetrated into the connection terminal, and the electric heating tape can be quickly connected to the first controller by the compression method. This connection method does not require multiple penetration actions and winding operations, which is convenient for personnel to operate, thereby improving the connection efficiency. In addition, with the setting of the reminder mechanism, it can remind personnel after the electric heating tape is safely compressed, which can effectively reduce the risk of the temperature sensor being squeezed and damaged due to the large compression force;

[0016] 2. Through the cooperation of the temperature sensor and the first controller, when the temperature is detected to be higher than the preset value, the first controller controls the electric heating cable to cut off the circuit, thereby achieving an explosion-proof effect;

[0017] The utility model can directly penetrate the electric heating tape into the connecting terminal through a series of structural settings, and realize the quick connection between the electric heating tape and the first controller by means of compression. This connection method does not require multiple penetration actions and does not require winding operations, which is convenient for personnel to operate, thereby improving connection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural schematic diagram of an on-off device of an explosion-proof and high-temperature resistant electric heating belt proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the main cross-sectional structure of an on-off device of an explosion-proof and high-temperature resistant electric heating belt proposed by the utility model;

[0020] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0021] Figure 4 The utility model is a schematic cross-sectional structure diagram of a circular frame and a transparent plate of an on-off device of an explosion-proof and high-temperature resistant electric heating belt, in a state where the circular frame and the transparent plate are flipped to the upper side.

[0022] In the figure: 100, fixing plate; 101, L-shaped mounting rod; 102, on-off control box; 103, first controller; 104, adjusting knob; 105, mounting box; 106, electric heating tape; 1, first connecting pipe; 2, connecting horizontal pipe; 3, telescopic rubber sleeve; 4, circular frame; 5, transparent plate; 6, pressing plate; 7, temperature sensor; 8, T-shaped screw; 9, L-shaped guide rod; 10, pressure sensor; 11, thermal insulation pad; 12, second controller; 13, sound and light alarm; 14, connecting terminal; 15, connecting wire; 16, insulating block; 17, insulating pressing bolt. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-4, an explosion-proof high-temperature resistant electric heating tape on-off device, comprising a fixing plate 100, wherein four L-shaped mounting rods 101 are fixedly connected to the left side of the fixing plate 100, and two L-shaped mounting rods 101 opposite to each other are symmetrically arranged, and a first bolt hole is opened on the left inner wall of the L-shaped mounting rod 101, and a T-shaped fixing bolt is arranged in the thread sleeve of the first bolt hole. The whole device can be fixed in a desired position by matching the L-shaped mounting rod 101 and the T-shaped fixing bolt; the fixing plate 100 is fixed on the top of the right side of the fixing plate 100. There is an on-off control box 102, and a first controller 103 is embedded and fixed on the right side of the on-off control box 102. An adjusting knob 104 that matches the first controller 103 is also installed on the right side of the on-off control box 102. The principle of the adjustment knob 104 matching the first controller 103 is a prior art and is not specifically described here. The right side of the fixing plate 100 is fixedly connected to a mounting box 105 with an opening on the right side. The first controller 103 is electrically connected to a connecting wire 15, and the bottom end of the connecting wire 15 extends to A terminal connection mechanism is fixedly connected in the installation box 105, and an electric heating tape 106 is connected in the terminal connection mechanism, wherein the terminal connection mechanism includes a connection terminal 14 fixedly connected to the bottom end of the connection line 15, and the connection end of the connection terminal 14 is in close contact with the top end of the electric heating tape 106. An insulating block 16 is fixedly connected to the left inner wall of the connection terminal 14, and the right side of the insulating block 16 is in active contact with the left side of the connection part of the electric heating tape 106. An insulating pressing bolt 17 is in close contact with the right side of the connection part of the electric heating tape 106, and the connection terminal 14 is threadedly sleeved on the insulating pressing bolt 17, wherein a second bolt hole is opened on the right inner wall of the connection terminal 14, and the second bolt hole is threadedly connected with the insulating pressing bolt 17. The electric heating tape 106 can be fixedly connected to the connection terminal 14 through the cooperation of the insulating pressing bolt 17 and the insulating block 16. The electric heating tape 106 is electrically connected to the first controller 103 through the cooperation of the connection terminal 14 and the connection line 15, which is a conventional wiring method in the prior art;

[0025] A penetration mechanism is embedded and fixed at the bottom of the installation box 105, and the bottom end of the electric heating belt 106 penetrates the penetration mechanism. The penetration mechanism includes a first connecting pipe 1 embedded and fixed at the bottom of the installation box 105, and the top of the first connecting pipe 1 extends into the installation box 105, wherein a first mounting hole for fixing and installing the first connecting pipe 1 is opened on the bottom inner wall of the installation box 105, and a connecting transverse pipe 2 is provided below the installation box 105, and the left end of the connecting transverse pipe 2 is connected and fixed to the bottom end of the first connecting pipe 1 by a same telescopic rubber sleeve 3. The elastic force of the telescopic rubber sleeve 3 can be used to provide the connecting transverse pipe 2 with space for rotation. The bottom end of the electric heating belt 106 passes through the first connecting pipe 1, the telescopic rubber sleeve 3 and the connecting transverse pipe 2 in sequence. The top of the electric heating belt 106 is in close contact with a T-shaped compression bolt. The connecting transverse pipe 2 is threadedly sleeved on the T-shaped compression bolt. A third bolt hole is opened on the top inner wall of the connecting transverse pipe 2. The third bolt hole is threadedly connected with the T-shaped compression bolt. The electric heating belt 106 is pressed and fixed in the connecting transverse pipe 2 by the T-shaped compression bolt.

[0026] A thermal insulation pad 11 is fixedly connected to the left inner wall of the installation box 105, and the right side of the thermal insulation pad 11 is in active contact with the left side of the electric heating tape 106. The right side of the electric heating tape 106 is in close contact with a compression monitoring mechanism, and the compression monitoring mechanism is electrically connected to the first controller 103. A circular frame 4 is rotatably installed on the top right side of the installation box 105, wherein a same hinge is threadedly fixed between the top right side of the installation box 105 and the top left side of the circular frame 4, and the circular frame 4 is rotatably installed with the installation box 105 through the hinge, and a threaded groove is provided at the bottom right side of the installation box 105, and a T-shaped bolt is threadedly sleeved in the threaded groove, and the circular frame 4 is threadedly sleeved on the T-shaped bolt, and the fixed connection between the circular frame 4 and the installation box 105 is achieved by the T-shaped bolt, and the circular frame 4 is screwed in the circular frame 4. The fixing sleeve is provided with a transparent plate 5, wherein the compression monitoring mechanism includes a compression plate 6, the left side of the compression plate 6 is in close contact with the right side of the electric heating tape 106, the left side of the compression plate 6 is bonded and fixed with an anti-skid rubber, the left side of the anti-skid rubber is in close contact with the electric heating tape 106, the electric heating tape 106 is compressed by the compression plate 6, and the setting of the anti-skid rubber can effectively reduce the slipping during the compression process, a temperature sensor 7 is embedded and fixed on the left side of the compression plate 6, a first embedding groove is provided on the left side of the compression plate 6, the right inner wall of the first embedding groove is fixedly connected to the right side of the temperature sensor 7, the left side of the temperature sensor 7 is a detection end and is in close contact with the right side of the electric heating tape 106, a first through hole connected to the first embedding groove is provided on the left side of the anti-skid rubber, The temperature sensor 7 is located in the first through hole and does not contact the inner wall of the first through hole. The temperature sensor 7 monitors the temperature of the electric heating belt 106. The temperature sensor 7 is electrically connected to the first controller 103. A pressure sensor 10 is embedded and fixed on the top left side of the pressing plate 6, wherein a second embedding groove for fixing the pressure sensor 10 is provided on the top left side of the pressing plate 6. The left side of the pressure sensor 10 is in active contact with the right side of the electric heating belt 106. A second through hole connected to the second embedding groove is provided on the left side of the anti-slip rubber. The pressure sensor 10 is located in the second through hole and does not contact the inner wall of the second through hole. The pressure sensor 10 is used to detect the extrusion force during pressing. A T-shaped screw is rotatably installed on the right side of the pressing plate 6. Rod 8, wherein the right side of the pressing plate 6 is fixedly connected with a bearing, the inner side of the inner ring of the bearing is fixedly connected with the outer side of the T-shaped screw 8, and the bearing serves the effect of allowing the T-shaped screw 8 to be rotatably installed, and the right side of the T-shaped screw 8 extends to the right side of the transparent plate 5, and the transparent plate 5 is threadedly sleeved on the T-shaped screw 8, wherein the right side of the transparent plate 5 is provided with a threaded hole threadedly connected with the T-shaped screw 8, and the transparent plate 5 and the T-shaped screw 8 are threadedly connected through the threaded hole, so that the position can be moved while the T-shaped screw 8 rotates, and two L-shaped guide rods 9 are fixedly connected to the top of the right side of the pressing plate 6, and the transparent plate 5 is slidably sleeved on the two L-shaped guide rods 9, wherein the right side of the transparent plate 5 is provided with two guide holes, and the inner wall of the guide hole is in sliding contact with the outer side of the corresponding L-shaped guide rod 9,The L-shaped guide rod 9 plays a role in lateral guidance of the pressing plate 6;

[0027] A reminder mechanism is fixedly connected to the top right side of the circular frame 4, wherein the reminder mechanism includes a second controller 12 and an audible and visual alarm 13 fixedly connected to the top right side of the circular frame 4. The pressure sensor 10 and the audible and visual alarm 13 are electrically connected to the second controller 12, and can alarm and remind personnel through the audible and visual alarm 13 when the pressing force reaches a preset value; the utility model can directly penetrate the electric heating tape 106 into the connecting terminal 14 through a series of structural settings, and realize the rapid connection of the electric heating tape 106 and the first controller 103 by means of pressing. This connection method does not require multiple penetration actions and does not require winding operations, which is convenient for personnel to operate, thereby improving connection efficiency.

[0028] Working principle: When in use, the entire device can be installed in the required position by cooperating with the L-shaped installation rod 101 and the T-shaped fixing bolt. Before the electric heating tape 106 is connected to the connecting terminal 14, when connecting, first rotate the T-shaped bolt in the opposite direction to move it out of the threaded groove to release the fixation of the circular frame 4 and the transparent plate 5, and then rotate the circular frame 4 and the transparent plate 5 to the upper right to release the obstruction of the right side of the installation box 105. The transparent plate 5 also drives the compression monitoring mechanism to move out of the installation box 105, and then peel off the insulating protective skin on the connecting end of the electric heating tape 106, and rotate the connecting transverse pipe 2 according to the direction of the electric heating tape 106. While the connecting transverse pipe 2 is rotating, the telescopic rubber sleeve 3 is compressed. When the connecting transverse pipe 2 is rotated to align with the electric heating tape 106, the connecting end of the electric heating tape 106 can be passed through the connecting transverse pipe 2 in sequence. The horizontal pipe 2, the telescopic rubber sleeve 3 and the first connecting pipe 1 are inserted into the installation box 105. When the connecting end of the electric heating tape 106 is inserted into the connecting terminal 14, the pulling of the electric heating tape 106 can be stopped, and the insulating pressing bolt 17 is rotated forward. While the insulating pressing bolt 17 is rotated, the electric heating tape 106 is squeezed, and the electric heating tape 106 moves to the left until it is in close contact with the right side of the insulating block 16, so that the electric heating tape 106 is fixed by the insulating pressing bolt 17 and the insulating block 16. At this time, the electric heating tape 106 is electrically connected to the first controller 103 through the connecting line 15 and the connecting terminal 14 in turn, and then the T-shaped pressing bolt is rotated forward. The T-shaped pressing bolt is rotated and moved to be in close contact with the electric heating tape 106, so that the electric heating tape 106 is fixed in the connecting horizontal pipe 2 through the T-shaped pressing bolt;

[0029] Then, the circular frame 4 is rotated downward, and the circular frame 4 drives the transparent plate 5 to rotate downward to vertically to cover the right side of the installation box 105. Then, the T-shaped bolt is rotated forward and moved into the thread groove to fix the circular frame 4. While the transparent plate 5 rotates, it drives the compression monitoring mechanism to rotate into the installation box 105. Then, the T-shaped screw 8 is rotated forward. While the T-shaped screw 8 rotates, it drives the compression plate 6 to move to the left. The compression plate 6 drives the two L-shaped guide rods 9 to move to the left. The compression plate 6 also drives the temperature sensor 7 and the pressure sensor 10 to move to the left. When the temperature sensor 7 and the pressure sensor 10 are moved to close contact with the right side of the electric heating belt 106, the pressure sensor 10 detects the extrusion force. , and transmits the detected squeezing force to the second controller 12. The second controller 12 controls the sound and light alarm 13 to send out a sound and light alarm to remind the personnel. After receiving the reminder, the personnel can stop rotating the T-shaped screw 8, thereby completing the safe fixation of the electric heating belt 106 after connection. By directly passing the electric heating belt 106 through the connecting terminal 14, the electric heating belt 106 is quickly connected to the first controller 103 in a pressing manner. This connection method does not require personnel to perform winding operations and does not require multiple penetration actions, thereby improving the connection efficiency. After the electric heating belt 106 is safely pressed, the method of reminding personnel can effectively reduce the risk of squeezing the temperature sensor 7 due to the large pressing force.

[0030] When used after connection, the temperature of the electric heating tape 106 is detected by the temperature sensor 7, and the detected temperature value is transmitted to the first controller 103. When it is detected that the temperature is higher than the preset value, the first controller 103 controls the electric heating tape 106 to perform a circuit breaking operation, thereby achieving an explosion-proof effect. The specific explosion-proof principle has been disclosed in the patent document with application number 201921486761.7, and will not be elaborated in detail. In addition, high temperature resistance is a characteristic of the electric heating tape 106 itself.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An on-off device for an explosion-proof and high-temperature resistant electric heating tape, comprising a fixing plate (100), a on-off control box (102) being fixedly mounted on the top right side of the fixing plate (100), characterized in that: The right side of the on-off control box (102) is embedded with a first controller (103), and the right side of the on-off control box (102) is also equipped with an adjustment knob (104) that matches the first controller (103). The right side of the fixing plate (100) is fixedly connected to a mounting box (105) with an opening on the right side. The first controller (103) is electrically connected to a connecting wire (15). The bottom end of the connecting wire (15) extends into the mounting box (105) and is fixedly connected to a terminal connecting mechanism. The terminal connecting mechanism is connected to an electric heating tape (106). The bottom of the mounting box (105) is embedded with a penetration mechanism. The electric heating tape (106) is 06) penetrates the penetration mechanism, a heat insulation pad (11) is fixedly connected to the left inner wall of the installation box (105), the right side of the heat insulation pad (11) is in active contact with the left side of the electric heating belt (106), the right side of the electric heating belt (106) is in close contact with a compression monitoring mechanism, the compression monitoring mechanism is electrically connected to the first controller (103), a circular frame (4) is rotatably installed on the top right side of the installation box (105), a transparent plate (5) is fixedly sleeved in the circular frame (4), the transparent plate (5) is sleeved on the compression monitoring mechanism, a reminder mechanism is fixedly connected to the top right side of the circular frame (4), and the reminder mechanism is electrically connected to the compression monitoring mechanism.

2. The on-off device of an explosion-proof and high-temperature resistant electric heating belt according to claim 1 is characterized in that: The terminal connection mechanism comprises a connection terminal (14) fixedly connected to the bottom end of the connection line (15), the connection end of the connection terminal (14) is in close contact with the top end of the electric heating belt (106), an insulating block (16) is fixedly connected to the left inner wall of the connection terminal (14), the right side of the insulating block (16) is in movably contact with the left side of the connection part of the electric heating belt (106), the right side of the connection part of the electric heating belt (106) is in close contact with an insulating clamping bolt (17), and the connection terminal (14) is threadedly sleeved on the insulating clamping bolt (17).

3. The on-off device of an explosion-proof and high-temperature resistant electric heating belt according to claim 2 is characterized in that: The penetration mechanism comprises a first connecting pipe (1) embedded and fixed at the bottom of the installation box (105), the top end of the first connecting pipe (1) extends into the installation box (105), a connecting transverse pipe (2) is provided below the installation box (105), the left end of the connecting transverse pipe (2) and the bottom end of the first connecting pipe (1) are connected and fixed with a same telescopic rubber sleeve (3), the bottom end of the electric heating belt (106) penetrates the first connecting pipe (1), the telescopic rubber sleeve (3) and the connecting transverse pipe (2) in sequence, the top of the electric heating belt (106) is in close contact with a T-shaped compression bolt, and the connecting transverse pipe (2) is threadedly sleeved on the T-shaped compression bolt.

4. The on-off device of the explosion-proof and high temperature resistant electric heating belt according to claim 3 is characterized in that: The compression monitoring mechanism comprises a compression plate (6), the left side of the compression plate (6) is in close contact with the right side of the electric heating belt (106), a temperature sensor (7) is embedded and fixed on the left side of the compression plate (6), the left side of the temperature sensor (7) is a detection end and is in close contact with the right side of the electric heating belt (106), the temperature sensor (7) is electrically connected to the first controller (103), a pressure sensor (10) is embedded and fixed on the top of the left side of the compression plate (6), the left side of the pressure sensor (10) is in movably contact with the right side of the electric heating belt (106), a T-shaped screw (8) is rotatably installed on the right side of the compression plate (6), the right side of the T-shaped screw (8) extends to the right side of the transparent plate (5), the transparent plate (5) is threadedly sleeved on the T-shaped screw (8), and two L-shaped guide rods (9) are fixedly connected to the top of the right side of the compression plate (6), and the transparent plate (5) is slidably sleeved on the two L-shaped guide rods (9).

5. The on-off device of the explosion-proof and high temperature resistant electric heating belt according to claim 4 is characterized in that: The reminder mechanism comprises a second controller (12) and an audible and visual alarm (13) fixedly connected to the top right side of the circular frame (4); the pressure sensor (10) and the audible and visual alarm (13) are both electrically connected to the second controller (12).

6. The on-off device of an explosion-proof and high-temperature resistant electric heating belt according to claim 1, characterized in that: The right bottom of the installation box (105) is provided with a threaded groove, a T-shaped bolt is threadedly sleeved in the threaded groove, and the circular frame (4) is threadedly sleeved on the T-shaped bolt.

7. The on-off device of the explosion-proof and high temperature resistant electric heating belt according to claim 1 is characterized in that: Four L-shaped mounting rods (101) are fixedly connected to the left side of the fixing plate (100), two L-shaped mounting rods (101) facing each other up and down are symmetrically arranged, a first bolt hole is opened on the left inner wall of the L-shaped mounting rod (101), and a T-shaped fixing bolt is threadedly sleeved in the first bolt hole.

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