Fireproof current-limiting protector short circuit test switch device

Abstract

The utility model discloses a short-circuit test switch device for a fireproof current-limiting protector. The short-circuit test switch device comprises a test assembly, the test assembly comprises a power supply and a first circuit board fixedly connected to the top end of the power supply. A movable assembly; the movable assembly comprises a supporting plate fixedly connected to the bottom end of the outer side of the power source, first telescopic springs fixedly connected to the two sides of the upper end of the supporting plate, fixing grooves formed in the lower ends of the two sides of the first supporting plate, a protection plate and hollow grooves formed in the bottom ends of the two sides of the protection plate. The second telescopic spring is fixedly connected to the inner position of the hollow groove, and the fixed block is fixedly connected to the outer end position of the second telescopic spring; and a security component. According to the utility model, the problem that when the existing fireproof current-limiting protector short-circuit test switch device is used, a test is carried out due to short circuit, and when a human body is in contact with the test switch device, current is in contact with the human body, so that the body of a tester is hurt is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, in particular to a short-circuit testing switch device for a fire-proof current-limiting protector. Background Art

[0002] The short-circuit test switch device for fire-proof current-limiting protectors is a special device designed for the short-circuit test needs of fire-proof current-limiting protectors. The device has the characteristics of compact structure, easy operation, stable performance, etc., and can be widely used in the testing and maintenance of various types of fire-proof current-limiting protectors.

[0003] However, it still has the following disadvantages in actual use:

[0004] When the existing fire-proof current-limiting protector short-circuit test switch device is in use, it will form a short circuit to perform the test. When the human body comes into contact with the test switch device, the current will come into contact with the human body, thereby causing harm to the tester.

[0005] Therefore, a new fire-proof current-limiting protector short-circuit test switch device is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a fireproof current limiting protector short-circuit test switch device to solve the problem proposed in the above background technology that the existing fireproof current limiting protector short-circuit test switch device will form a short circuit when in use to perform testing. When the human body comes into contact with the test switch device, the current will come into contact with the human body, thereby causing harm to the body of the tester.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model is a fire-proof current-limiting protector short-circuit test switch device, comprising:

[0009] A test assembly; the test assembly includes a power supply and a first circuit board fixedly connected to the top of the power supply;

[0010] Movable component; the movable component includes a support plate fixedly connected to the bottom end of the outer side of the power supply, a first telescopic spring fixedly connected to the two sides of the upper end of the support plate, a fixing groove opened at the lower end of both sides of the first support plate, a protective plate, a hollow groove opened at the bottom end of both sides of the protective plate, a second telescopic spring fixedly connected to the inner position of the hollow groove, and a fixed block fixedly connected to the outer end of the second telescopic spring;

[0011] The safety component is fixedly connected to the upper end of the first circuit board.

[0012] Furthermore, the test assembly also includes a second circuit board fixedly connected to the upper end of the first circuit board and a connector fixedly connected to the outer side of the second circuit board.

[0013] Furthermore, the support plate is an L-shaped structure, and the protective plate is located at the upper end of the support plate.

[0014] Furthermore, the top end of the first telescopic spring is fixedly connected to both sides of the bottom end of the protective plate, and the protective plate is made of a transparent material.

[0015] Furthermore, the fixing groove and the hollow groove are opened relative to the fixing block, and the top height of the protection plate exceeds the top height of the second circuit board.

[0016] Furthermore, the safety component includes a support frame fixedly connected to the upper end of the first circuit board, a fire extinguisher box fixedly connected to the central position of the upper end of the support frame, a nozzle fixedly connected to the central position of the bottom end of the support frame, and a temperature sensor fixedly connected to both sides of the bottom end of the support frame.

[0017] Furthermore, the temperature sensor is electrically connected to the fire extinguishing box through a line, and the fire extinguishing box is filled with carbon dioxide gas.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] 1. The utility model provides a movable component. When the test component itself forms a short circuit for testing, the protective plate moves upward to block both sides of the test component to prevent the tester from accidentally touching the component and coming into contact with the current, thereby avoiding injury to the tester.

[0020] 2. Based on the first beneficial effect, by setting a safety component, when the test component forms a short circuit, when there is no operator around or the short circuit causes combustion, it is sensed by the temperature sensor and the burning flame is extinguished by the carbon dioxide in the fire extinguishing phase, thereby avoiding the formation of fire and increasing safety during use.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is the front view of the utility model;

[0024] Figure 2 This is a structural diagram of the test assembly of the utility model;

[0025] Figure 3 This is a structural diagram of the active components of the utility model;

[0026] Figure 4 This is a structural diagram of the safety component of the utility model.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Test component; 11. Power supply; 12. First circuit board; 13. Second circuit board; 14. Connector; 2. Movable component; 21. Support plate; 22. First telescopic spring; 23. Fixed groove; 24. Protective plate; 25. Hollow groove; 26. Second telescopic spring; 27. Fixed block; 3. Safety component; 31. Support frame; 32. Fire extinguisher box; 33. Sprinkler; 34. Temperature sensor. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0031] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0032] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] Example 1

[0034] See also Figure 1-3 As shown, this embodiment is a short-circuit test switch device for a fire-proof current-limiting protector, comprising:

[0035] Test assembly 1; the test assembly 1 comprises a power supply 11 and a first circuit board 12 fixedly connected to the top position of the power supply 11;

[0036] The movable component 2 includes a support plate 21 fixedly connected to the bottom end of the outer side of the power source 11, a first telescopic spring 22 fixedly connected to both sides of the upper end of the support plate 21, a fixing groove 23 provided at the lower end of both sides of the first support plate 21, a protective plate 24, a hollow groove 25 provided at the bottom end of both sides of the protective plate 24, a second telescopic spring 26 fixedly connected to the inner position of the hollow groove 25, and a fixing block 27 fixedly connected to the outer end of the second telescopic spring 26;

[0037] The support plate 21 is used to support the protective plate 24, the first telescopic spring 22 is used to drive the protective plate 24 to move, the fixing groove 23 and the hollow groove 25 are used to place the fixing block 27, the protective plate 24 is used to block both sides of the test component 1, the second telescopic spring 26 is used to drive the fixing block 27 to move, and the fixing block 27 is used to limit the position of the protective plate 24;

[0038] The test assembly 1 further includes a second circuit board 13 fixedly connected to the upper end of the first circuit board 12 and a connector 14 fixedly connected to the outer side of the second circuit board 13;

[0039] The power supply 11 is used to increase the electric energy, the first circuit board 12 and the second circuit board 13 are used to form a short circuit, and the connector 14 is used to connect with the fire-proof current-limiting protector;

[0040] The support plate 21 is an L-shaped structure, and the protection plate 24 is located at the upper end of the support plate 21;

[0041] The protection plate 24 can move up and down inside the support plate 21;

[0042] The top of the first telescopic spring 22 is fixedly connected to both sides of the bottom of the protective plate 24, and the protective plate 24 is made of transparent material;

[0043] When the protective plate 24 moves downward, the first telescopic spring 22 is compressed, and when the first telescopic spring 22 rebounds upward, the protective plate 24 is driven to move upward, and the test assembly 1 can be observed through the protective plate 24;

[0044] The fixing groove 23 and the hollow groove 25 are opened relative to the fixing block 27, and the top height of the protection plate 24 exceeds the top height of the second circuit board 13;

[0045] When the fixing block 27 is located inside the fixing groove 23, the fixing groove 23 blocks the fixing block 27;

[0046] Working principle: When testing the fire-proof current-limiting protector, push the fixing block 27 inward to move the fixing block 27 inward and drive the second telescopic spring 26 to be compressed. At this time, the fixing block 27 is located outside the fixing groove 23. Under the elastic force of the first telescopic spring 22, the protective plate 24 moves upward to block both sides of the test assembly 1.

[0047] When use is completed, the protective plate 24 is moved downward, and the downward movement of the protective plate 24 drives the first telescopic spring 22 to be compressed. When the protective plate 24 drives the fixed block 27 to move to the position of the fixed groove 23, under the elastic force of the second telescopic spring 26, the fixed block 27 moves outward to the inside of the fixed groove 23. At this time, the fixed groove 23 blocks the fixed block 27, so that the protective plate 24 is fixed in the internal position of the support plate 21.

[0048] Example 2

[0049] See also Figure 4 As shown, this embodiment is based on the above embodiment 1 and also includes:

[0050] The safety component 3 is fixedly connected to the upper end of the first circuit board 12;

[0051] The safety component 3 includes a support frame 31 fixedly connected to the upper end of the first circuit board 12, a fire extinguishing box 32 fixedly connected to the center of the upper end of the support frame 31, a nozzle 33 fixedly connected to the center of the bottom end of the support frame 31, and a temperature sensor 34 fixedly connected to both sides of the bottom end of the support frame 31;

[0052] The support frame 31 is used to support the fire extinguishing box 32 and the nozzle 33. The fire extinguishing box 32 is used to place the fire extinguishing gas. The nozzle 33 is used to spray the fire extinguishing gas outward. The temperature sensor 34 is used to sense the temperature of the first circuit board 12 and the second circuit board 13.

[0053] The temperature sensor 34 is electrically connected to the fire extinguishing box 32 through a line, and the fire extinguishing box 32 is filled with carbon dioxide gas;

[0054] When the temperature sensor 34 measures that the temperature of the first circuit board 12 and the second circuit board 13 is abnormal, the nozzle 33 is controlled to start;

[0055] Working principle: When the test component 1 is performing a short-circuit test, high temperature or even combustion will be generated due to the short circuit. At this time, the temperature sensor 34 senses the first circuit board 12 and the second circuit board 13. When high temperature or combustion occurs, the temperature sensor 34 is activated and the nozzle 33 is controlled to be activated. The nozzle 33 sprays the carbon dioxide inside the fire extinguishing box 32 outward, thereby avoiding high-temperature combustion.

[0056] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. Fire-proof current-limiting protector short-circuit test switch device, characterized in that: include: A test assembly (1); the test assembly (1) comprises a power supply (11) and a first circuit board (12) fixedly connected to the top position of the power supply (11); A movable component (2); the movable component (2) comprises a support plate (21) fixedly connected to the bottom end position of the outer side of the power source (11), a first telescopic spring (22) fixedly connected to the upper and lower sides of the support plate (21), a fixing groove (23) provided at the lower end positions of both sides of the first support plate (21), a protective plate (24), a hollow groove (25) provided at the bottom end positions of both sides of the protective plate (24), a second telescopic spring (26) fixedly connected to the inner position of the hollow groove (25), and a fixing block (27) fixedly connected to the outer end position of the second telescopic spring (26); The safety component (3) is fixedly connected to the upper end of the first circuit board (12).

2. The short-circuit test switch device for fire-proof current-limiting protector according to claim 1, characterized in that: The test assembly (1) also includes a second circuit board (13) fixedly connected to the upper end of the first circuit board (12) and a connector (14) fixedly connected to the outer side of the second circuit board (13).

3. The short-circuit test switch device for fire-proof current-limiting protector according to claim 1, characterized in that: The support plate (21) is an L-shaped structure, and the protection plate (24) is located at the upper end of the support plate (21).

4. The short-circuit test switch device for fire-proof current-limiting protector according to claim 1, characterized in that: The top end of the first telescopic spring (22) is fixedly connected to the two sides of the bottom end of the protection plate (24), and the protection plate (24) is made of a transparent material.

5. The short-circuit test switch device for fire-proof current-limiting protector according to claim 1, characterized in that: The fixing groove (23) and the hollow groove (25) are opened relative to the fixing block (27), and the top height of the protection plate (24) exceeds the top height of the second circuit board (13).

6. The short-circuit test switch device for fire-proof current-limiting protector according to claim 1, characterized in that: The safety component (3) comprises a support frame (31) fixedly connected to the upper end of the first circuit board (12), a fire extinguishing box (32) fixedly connected to the central position of the upper end of the support frame (31), a nozzle (33) fixedly connected to the central position of the bottom end of the support frame (31), and temperature sensors (34) fixedly connected to positions on both sides of the bottom end of the support frame (31).

7. The short-circuit test switch device for fire-proof current-limiting protector according to claim 6, characterized in that: The temperature sensor (34) is electrically connected to the fire extinguishing box (32) via a line, and the interior of the fire extinguishing box (32) is filled with carbon dioxide gas.

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