Explosion-proof temperature controller

Abstract

The utility model discloses an explosion-proof temperature controller which comprises a box body, the box body comprises an upper shell and a lower shell which are buckled up and down, two ends of the box body are connected with end covers, the middle parts of the end covers are connected with pipeline ports, and two sides of the upper shell are provided with air dispersing ports along the length direction of the upper shell; wiring fixing pieces are connected between the top in the upper shell and the bottom in the lower shell, two groups of wiring fixing pieces are arranged close to pipeline ports at two ends, an anti-explosion wiring terminal is connected between the two groups of wiring fixing pieces, and a temperature sensor is arranged on the inner side wall of the lower shell close to the anti-explosion wiring terminal. Compared with the prior art, the explosion-proof temperature controller provided by the utility model has the advantages that the explosion-proof temperature controller is convenient to operate and use, can carry out flame-retardant protection and has a power-off function.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring protection, in particular to an explosion-proof temperature controller. Background Art

[0002] Temperature control is a means widely used in industry. Accurate temperature control is one of the key factors in industrial production.

[0003] During industrial applications, temperature control is often required at the wiring connection for high-temperature warning and protection. In the prior art, such control is mostly achieved through fuses. However, such operations can only provide power-off protection and cannot provide flame-retardant and explosion-proof protection. When used in a space with flammable and explosive substances, the safety is slightly poor, resulting in inconvenience in use. Summary of the Utility Model

[0004] (1) Problems to be Solved

[0005] The technical problem to be solved by the utility model is to overcome the above technical defects and provide an explosion-proof temperature controller that is convenient to operate and use, can provide flame-retardant protection, and has a power-off function.

[0006] (2) Technical Solutions

[0007] To solve the above technical problem, the technical solution provided by the utility model is: an explosion-proof temperature controller, including a box body, the box body includes an upper shell and a lower shell that are buckled up and down, both ends of the box body are connected with end covers, a pipeline port is connected in the middle of the end cover, and air-diffusing ports are arranged on both sides of the upper shell along its length direction;

[0008] A wiring fixing member is connected between the inner top of the upper shell and the inner bottom of the lower shell. There are two groups of wiring fixing members near the pipeline ports at both ends. An explosion-proof wiring terminal is connected between the two groups of wiring fixing members. A temperature sensor is arranged on the inner side wall of the lower shell near the explosion-proof wiring terminal;

[0009] A temperature control air-diffusing baffle is connected in the upper shell in cooperation with the air-diffusing port. A one-way air valve one is connected to the upper port of the upper shell, and a one-way air valve two is connected to the lower shell far away from the one-way air valve one.

[0010] As an improvement, a rubber sealing sleeve is sleeved on the outer port of the pipeline port.

[0011] As an improvement, the temperature control air-diffusing baffle includes a movable plate and an electric push rod one. The electric push rod one is connected and arranged on one side inside the upper shell. The telescopic end of the electric push rod one is fixedly connected to the end of the movable plate. A number of ventilation slots are arranged on the movable plate in cooperation with the air-diffusing port.

[0012] As an improvement, an inert gas conduit is connected to the air inlet of the one-way air valve 1, and the gas passage of the one-way air valve 2 flows from inside the box body to outside the box body.

[0013] As an improvement, the explosion-proof terminal includes a terminal part and an electric push rod 2. There are a number of mating wiring grooves recessed at both ends of the terminal part, and a conducting core is connected between the two groups of wiring grooves.

[0014] As an improvement, the wiring fixing part includes a pressing rod connected to the top of the upper shell and a fixing frame connected to the inside of the lower shell;

[0015] A number of notches for mating with the cable are recessed on the fixing frame. The pressing rod includes an outer rod and an inner rod that are slidably sleeved. The outer rod is fixedly arranged at the top inside the upper shell. The bottom end of the inner rod is fixedly connected with a pressing block. A return spring that abuts against the outer rod and the pressing block respectively is sleeved on the inner rod. A notch block is arranged at the bottom end of the pressing block to cooperate with the notch.

[0016] (III) Beneficial effects

[0017] The advantages of the present utility model compared with the prior art are as follows: In this application, a sealed space is formed in the box body by the temperature-controlled air-dissipating baffle and the two one-way valves. Inert gas is filled through the connected inert gas pipeline to prevent internal spontaneous combustion and ensure the use safety. Among them, the setting of the explosion-proof terminal can automatically disconnect the connection with the two side wire groups when the temperature reaches the threshold value, ensuring the temperature control and explosion-proof function of the controller. Description of the drawings

[0018] Figure 1 is a schematic structural diagram of an explosion-proof temperature controller.

[0019] Figure 2 is a schematic internal structural diagram of an explosion-proof temperature controller.

[0020] Figure 3 is a schematic cross-sectional structural diagram of the terminal part.

[0021] Figure 4 is a partial schematic structural diagram of the wiring fixing part.

[0022] As shown in the figure: 1. Upper shell; 2. Lower shell; 3. End cover; 4. Pipeline port; 5. Rubber sealing sleeve; 6. Air-dissipating port; 7. Explosion-proof terminal; 8. Temperature sensor; 9. One-way air valve 1; 10. One-way air valve 2; 11. Movable plate; 12. Electric push rod 1; 13. Ventilation slot; 14. Inert gas conduit; 15. Terminal part; 16. Electric push rod 2; 17. Wiring groove; 18. Pressing rod; 19. Fixing frame; 20. Notch; 21. Outer rod; 22. Inner rod; 23. Pressing block; 24. Return spring; 25. Notch block. Detailed implementation manners

[0023] The specific implementation manners of the present utility model will be further described below in conjunction with the accompanying drawings. The same components are denoted by the same reference numerals.

[0024] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0025] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] In order to make the content of the present utility model more clearly understood, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0028] Please refer specifically to the attached Figures 1-4 , an explosion-proof temperature controller, comprising a box body, the box body includes an upper shell 1 and a lower shell 2 which are buckled up and down, and end caps 3 are connected and provided at both ends of the box body. In order to ensure the stability of the connection, bolts and screw holes can also be added to fix each connection part.

[0029] A pipeline port 4 is connected and provided in the middle of the end cap 3, and a rubber sealing sleeve 5 is sleeved on the outer port of the pipeline port 4, so as to enhance the sealing effect after the pipeline is sleeved and connected.

[0030] A wiring fixing member is connected and provided between the inner top of the upper housing 1 and the inner bottom of the lower housing 2. There are two groups of pipeline ports 4 near both ends of the wiring fixing member. An explosion-proof wiring terminal 7 is connected between the two groups of wiring fixing members. A temperature sensor 8 is provided on the inner side wall of the lower housing 2 near the explosion-proof wiring terminal 7. At the same time, air vents 6 are provided on both sides of the upper housing 1 along its length direction. The setting of the air vents facilitates heat dissipation and temperature reduction during daily use. A temperature-controlled air vent baffle is connected and provided in the upper housing 1 in cooperation with the air vents 6. At the same time, a one-way air valve 9 is connected to the upper port of the upper housing 1, and a one-way air valve 10 is connected to the lower housing 2 far away from the one-way air valve 9.

[0031] In one embodiment:

[0032] The temperature-controlled air vent baffle includes a movable plate 11 and a first electric push rod 12. The first electric push rod 12 is connected and provided on one side inside the upper housing 1. The telescopic end of the first electric push rod 12 is fixedly connected to the end of the movable plate 11. A number of ventilation slots 13 are provided on the movable plate 11 in cooperation with the air vents 6. When the temperature threshold is reached, the movable plate 11 is controlled by the first electric push rod 12 to move, so as to block each air vent 6 and perform sealing treatment inside the box. The air inlet of the one-way air valve 9 is connected with an inert gas conduit 14. The gas passage of the one-way air valve 10 flows from inside the box to outside the box. After the temperature threshold is reached, inert gas is introduced through the inert gas conduit 14 for explosion-proof treatment. Among them, the explosion-proof gas tank can be externally connected with an electromagnetic valve, etc., and is connected to a controller in linkage control with the temperature sensor 8 for use.

[0033] The explosion-proof wiring terminal 7 includes a terminal member 15 and a second electric push rod 16. A number of mutually cooperating wiring grooves 17 are recessed at both ends of the terminal member 15. A conducting core is connected between the two groups of wiring grooves 17. After the second electric push rod 16 rises, the wires on both sides cannot be disconnected, so as to perform disconnection and power-off treatment.

[0034] In order to ensure the effect of fixing the wire during daily use, the wiring fixing member includes a pressing rod 18 connected to the top of the upper housing 1 and a fixing frame 19 connected to the inside of the lower housing 2. A number of notches 20 for cooperating with the cable are recessed on the fixing frame 19. The pressing rod 18 includes an outer rod 21 and an inner rod 22 that are slidably sleeved. The outer rod 21 is fixedly provided on the inner top of the upper housing 1. The bottom end of the inner rod 22 is fixedly connected with a pressing block 23. A return spring 24 that abuts against the outer rod 21 and the pressing block 23 respectively is sleeved on the inner rod 22. A notch block 25 is provided at the bottom end of the pressing block 23 in cooperation with the notch 20. When the upper housing 1 and the lower housing 2 are buckled, the notch block presses the wire core in the notch 20, thereby completing the fixing of the cable, and the pressing and fixing effect is ensured by the return spring.

[0035] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0036] All the standard parts used in the present utility model can be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt the conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0037] The above has described the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and design, without creative efforts, a structural manner and an embodiment similar to the technical solution without departing from the creative purpose of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. An explosion-proof temperature controller, characterized in that: The box body comprises an upper shell (1) and a lower shell (2) which are buckled together, both ends of the box body are connected with end covers (3), the middle of the end covers (3) are connected with a pipeline port (4), and both sides of the upper shell (1) are provided with air dispersion ports (6) along the length direction thereof; A wiring fixture is connected between the top of the upper shell (1) and the bottom of the lower shell (2); two groups of wiring fixtures are provided near the pipeline openings (4) at both ends; explosion-proof wiring terminals (7) are connected between the two groups of wiring fixtures; and a temperature sensor (8) is provided on the inner wall of the lower shell (2) near the explosion-proof wiring terminals (7); A temperature-controlled air diffusion baffle is provided in the upper shell (1) in conjunction with the air diffusion port (6); a one-way air valve (9) is provided at the upper port of the upper shell (1); and a one-way air valve (10) is provided on the lower shell (2) away from the one-way air valve (9).

2. An explosion-proof temperature controller according to claim 1, characterized in that: The outer end of the pipeline port (4) is sleeved with a rubber sealing sleeve (5).

3. An explosion-proof temperature controller according to claim 1, characterized in that: The temperature-controlled air diffusion baffle comprises a movable plate (11) and an electric push rod (12). The electric push rod (12) is connected to one side of the upper shell (1). The telescopic end of the electric push rod (12) is fixedly connected to the end of the movable plate (11). The movable plate (11) is provided with a plurality of ventilation slots (13) in cooperation with the air diffusion port (6).

4. An explosion-proof temperature controller according to claim 3, characterized in that: The air inlet of the one-way air valve (9) is connected to an inert gas conduit (14), and the gas channel of the one-way air valve (10) flows from inside the box body to outside the box body.

5. An explosion-proof temperature controller according to claim 4, characterized in that: The explosion-proof terminal (7) comprises a terminal piece (15) and two electric push rods (16). The two ends of the terminal piece (15) are concavely provided with a plurality of matching wiring grooves (17). A guide core is connected between two groups of wiring grooves (17).

6. An explosion-proof temperature controller according to claim 1, characterized in that: The wiring fixture comprises a holding rod (18) connected to the top of the upper housing (1) and a fixing frame (19) connected to the inside of the lower housing (2); The fixing frame (19) is provided with a plurality of recessed notches (20) for matching with the cable arrangement. The holding rod (18) comprises an outer rod (21) and an inner rod (22) which are slidably sleeved. The outer rod (21) is fixedly arranged at the top of the upper shell (1). A pressure block (23) is fixedly connected to the bottom end of the inner rod (22). A return spring (24) is sleeved on the inner rod (22) and is respectively abutted against the outer rod (21) and the pressure block (23). A groove block (25) is provided at the bottom end of the pressure block (23) for matching with the notches (20).

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