Protective suite for brake resistance box

Abstract

The utility model relates to the technical field of brake electric boxes, in particular to a protective kit for a brake resistor box, which is arranged at the end of a resistor, the end of the resistor is provided with a mounting portion, one end of the mounting portion close to the resistor protrudes to form a limit portion, and the periphery of the mounting portion is provided with external threads. The protective sleeve comprises a fixing nut, a first anti-explosion fixing part and a second anti-explosion fixing part, the fixing nut is in threaded connection with the mounting part, a gap for mounting the support is formed between the fixing nut and the limiting part, the first anti-explosion fixing part is in threaded connection with the mounting part, the first anti-explosion fixing part wraps the mounting part, and the second anti-explosion fixing part wraps the mounting part. The fixing nut is located between the first anti-explosion fixing piece and the limiting part, the first anti-explosion fixing piece and the second anti-explosion fixing piece are in threaded connection, all parts which possibly generate sparks, electric arcs and dangerous temperature are sealed in the box body, the sealing performance is improved, the safety protection effect is achieved, and the use safety of the brake resistance box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brake electric boxes, in particular to a protection kit for a brake resistor box. Background Art

[0002] Brake box resistors are usually used in equipment and systems that require electrical braking. These equipment often work in explosive environments such as mines, petroleum, and chemicals. The resistors in the prior art lack protection at their ends, so that when the resistors are at high temperatures, the outer wrapping materials of the resistors may burn or generate sparks, which may cause explosions and dangerous accidents. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in order to overcome the problem in the prior art that the ends of the resistor lack protection, so that the resistor will cause the outer wrapping material of the resistor to burn or generate sparks under high temperature, thereby causing explosion and dangerous accidents, a protective kit for a brake resistor box is provided.

[0004] The utility model solves the technical problem by adopting the following technical solution: a protective kit for a brake resistor box, the brake resistor box comprising a box body and a resistor, the resistor being arranged in the box body through a bracket, the protective kit being arranged at the end of the resistor, the end of the resistor having a mounting portion, the mounting portion protruding on one end close to the resistor to form a limited position portion, the outer periphery of the mounting portion having an external thread,

[0005] The protection kit includes a fixing nut, a first explosion-proof fixing piece and a second explosion-proof fixing piece. The fixing nut is threadedly connected to the mounting portion. A gap is provided between the fixing nut and the limiting portion for bracket installation. The first explosion-proof fixing piece is threadedly connected to the mounting portion, and the first explosion-proof fixing piece covers the mounting portion. The fixing nut is located between the first explosion-proof fixing piece and the limiting portion. The threaded connection design of the first explosion-proof fixing piece and the second explosion-proof fixing piece seals all parts that may generate sparks, arcs and dangerous temperatures in the box body, improves the sealing performance, thereby playing a role of safety protection and improving the safety of the use of the brake resistor box. The double explosion-proof design forms a complete explosion-proof system, further enhancing the overall safety.

[0006] In order to solve the problem that the fixing nut may rotate relative to each other under the action of external force, causing the installation of the resistor on the bracket to become loose, the protective kit further includes two stop washers arranged at intervals, and a gap is provided between the two stop washers for arrangement therebetween, one of the stop washers is in contact with the limiting portion, and the other stop washer is in contact with the fixing nut, and the stop washer is located between the limiting portion and the fixing nut.

[0007] In order to solve the problem that the first explosion-proof fixing piece and the mounting portion are poorly connected or even fall off, the threaded hole of the first explosion-proof fixing piece is further filled with glue.

[0008] In order to solve the problem of poor connection between the first explosion-proof fixing piece and the mounting part, or even falling off, a built-in washer is further arranged in the threaded hole of the first explosion-proof fixing piece, and the built-in washer is located between the mounting part and the side wall of the threaded hole of the first explosion-proof fixing piece.

[0009] It further comprises a connecting portion protruding from one end of the first explosion-proof fixing piece away from the mounting portion, the outer periphery of the connecting portion is provided with an external thread, and the connecting portion is threadedly connected to the second explosion-proof fixing piece.

[0010] In order to solve the problem of poor connection effect and even falling off between the first explosion-proof fixing piece and the second explosion-proof fixing piece, the threaded hole of the second explosion-proof fixing piece is further arranged with a waterproof gasket, which is located between the connecting part and the side wall of the threaded hole of the second explosion-proof fixing piece.

[0011] The beneficial effect of the utility model is that the utility model provides a protective kit for a brake resistor box, which, through the design of the first explosion-proof component and the second explosion-proof component, seals all components that may generate sparks, arcs and dangerous temperatures in the box body, improves the sealing performance, thereby playing a role in safety protection and improving the safety of the use of the brake resistor box. The double explosion-proof design forms a complete explosion-proof system, further enhancing the overall safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 This utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0015] Figure 3 It is a schematic cross-sectional view of the protective kit of the utility model.

[0016] In the figure: 1. box body, 2. resistor, 21. installation part, 22. limiting part, 3. bracket, 4. fixing nut, 5. first explosion-proof fixing part, 51. connecting part, 6. second explosion-proof fixing part, 7. retaining washer, 8. built-in washer, 9. waterproof washer. DETAILED DESCRIPTION

[0017] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0018] like Figure 1 It is a structural schematic diagram of the utility model, a protective kit for a brake resistor box, the brake resistor box 2 includes a box body 1 and a resistor 2, the resistor 2 is arranged in the box body 1 through a bracket 3, the protective kit is arranged at the end of the resistor 2, the end of the resistor 2 has a mounting portion 21, the mounting portion 21 is protruded on one end close to the resistor 2 to form a limited portion 22, the outer periphery of the mounting portion 21 has an external thread,

[0019] like Figure 2 , Figure 3 As shown, the protective kit includes a fixing nut 4, a first explosion-proof fixing piece 5 and a second explosion-proof fixing piece 6, the first explosion-proof fixing piece 5 and the second explosion-proof fixing piece 6 can be explosion-proof joints, the first explosion-proof fixing piece 5 and the second explosion-proof fixing piece 6 are made of corrosion-resistant, high-temperature-resistant, and high-tensile-strength materials, such as stainless steel, copper alloy, etc., and the present application does not make specific limitations on this; the fixing nut 4 is threadedly connected to the mounting portion 21, and there is a gap between the fixing nut 4 and the limiting portion 22 for the installation of the bracket 3, the first explosion-proof fixing piece 5 is threadedly connected to the mounting portion 21, and the first explosion-proof fixing piece 5 covers the mounting portion 21, the fixing nut 4 is located between the first explosion-proof fixing piece 5 and the limiting portion 22, the first explosion-proof fixing piece 5 and the second explosion-proof fixing piece 6 are threadedly connected, all parts that may generate sparks, arcs and dangerous temperatures are sealed in the box body, the sealing is improved, thereby playing a role of safety protection, improving the safety of the use of the brake resistor box, and the double explosion-proof design forms a complete explosion-proof system, further enhancing the overall safety.

[0020] like Figure 2 , Figure 3 As shown, the protection kit also includes two spaced-apart stop washers 7, with a gap between the two stop washers 7 for arrangement therebetween, one of the stop washers 7 is in contact with the limiting portion 22, and the other stop washer 7 is in contact with the fixing nut 4, the stop washer 7 is located between the limiting portion 22 and the fixing nut 4, and the stop washer 7 can prevent the fixing nut 4 from loosening due to rotation due to external force by utilizing the cooperation of the stop ear and the fixing nut 4.

[0021] like Figure 2 , Figure 3As shown, the threaded hole of the first explosion-proof fixing piece 5 is filled with glue, and the first explosion-proof fixing piece 5 and the mounting portion 21 are sealed by glue filling to fill the tiny gaps between the threads, forming a continuous sealing layer, which effectively prevents external substances such as liquids, gases, and dust from entering the interior through the gaps, thereby enhancing the overall sealing performance; the friction between the first explosion-proof fixing piece 5 and the mounting portion 21 can be increased, and the strength and stability of the connection can be improved.

[0022] like Figure 2 , Figure 3 As shown, a built-in washer 8 is arranged in the threaded hole of the first explosion-proof fixing piece 5, and the built-in washer 8 is located between the mounting portion 21 and the side wall of the threaded hole of the first explosion-proof fixing piece 5. Through the design of the built-in washer 8, the contact area between the first explosion-proof fixing piece 5 and the mounting portion 21 can be significantly increased, thereby effectively dispersing the pressure generated when the bolts are tightened and extending the service life; the friction between the first explosion-proof fixing piece 5 and the mounting portion 21 can be increased, thereby improving the anti-loosening performance of the connection; the built-in washer 8 can absorb vibration and impact.

[0023] like Figure 2 , Figure 3 As shown, a connecting portion 51 is formed on the end of the first explosion-proof fixing member 5 away from the mounting portion 21, and an external thread is provided on the outer periphery of the connecting portion 51. The connecting portion 51 is threadedly connected to the second explosion-proof fixing member 6. A waterproof gasket 9 is arranged in the threaded hole of the second explosion-proof fixing member 6. The waterproof gasket 9 is located between the connecting portion 51 and the side wall of the threaded hole of the second explosion-proof fixing member 6. The waterproof gasket 9 can increase the friction between the first explosion-proof fixing member 5 and the second explosion-proof fixing member 6, thereby improving the anti-loosening performance of the connection; the waterproof gasket 9 can form a waterproof barrier to effectively prevent liquid from leaking from the connection; the waterproof gasket 9 can absorb vibration and impact.

[0024] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A protective kit for a brake resistor box, the brake resistor (2) box comprising a box body (1) and a resistor (2), the resistor (2) being arranged in the box body (1) via a bracket (3), characterized in that: The protective kit is arranged at the end of the resistor (2), the end of the resistor (2) has a mounting portion (21), one end of the mounting portion (21) close to the resistor (2) protrudes to form a limiting portion (22), and the outer periphery of the mounting portion (21) has an external thread. The protective kit comprises a fixing nut (4), a first explosion-proof fixing piece (5) and a second explosion-proof fixing piece (6); the fixing nut (4) is threadedly connected to a mounting portion (21); a gap is provided between the fixing nut (4) and a limiting portion (22) for mounting a bracket (3); the first explosion-proof fixing piece (5) is threadedly connected to the mounting portion (21); the first explosion-proof fixing piece (5) covers the mounting portion (21); the fixing nut (4) is located between the first explosion-proof fixing piece (5) and the limiting portion (22); and the first explosion-proof fixing piece (5) is threadedly connected to the second explosion-proof fixing piece (6).

2. A protective kit for a brake resistor box as claimed in claim 1, characterized in that: The protective kit also includes two stop washers (7) arranged at intervals, with a gap between the two stop washers (7) for arrangement therebetween, one of the stop washers (7) being in contact with the limiting portion (22), and the other stop washer (7) being in contact with the fixing nut (4), the stop washer (7) being located between the limiting portion (22) and the fixing nut (4).

3. A protective kit for a brake resistor box as claimed in claim 1, characterized in that: The threaded hole of the first explosion-proof fixing member (5) is filled with glue.

4. A protective kit for a brake resistor box as claimed in claim 1, characterized in that: An internal washer (8) is arranged in the threaded hole of the first explosion-proof fixing piece (5), and the internal washer (8) is located between the mounting portion (21) and the side wall of the threaded hole of the first explosion-proof fixing piece (5).

5. The protective kit for a brake resistor box according to claim 1, characterized in that: A connecting portion (51) is formed on one end of the first explosion-proof fixing piece (5) away from the mounting portion (21), and an outer circumference of the connecting portion (51) is provided with an external thread. The connecting portion (51) is threadedly connected to the second explosion-proof fixing piece (6).

6. A protection kit for a brake resistor box as claimed in claim 5, characterized in that: The threaded hole of the second explosion-proof fixing piece (6) is provided with a waterproof gasket (9), and the waterproof gasket (9) is located between the connecting portion (51) and the side wall of the threaded hole of the second explosion-proof fixing piece (6).

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