Explosion-proof horn mouth

Abstract

The utility model relates to the field of explosion -proof, specifically is a kind of explosion -proof horn mouth, including sealing sleeve, the inside of sealing sleeve is provided with the connecting barrel matched therewith;The inside of connecting barrel is inserted with plugging piece, and the end of plugging piece is in abutment with sealing sleeve and limits plugging piece, prevents plugging piece from separating. In order to be able to install at least two wires in the inside of plugging piece, rotate sealing sleeve, the inner wall of sealing sleeve extrudes connecting barrel, and sealing sleeve is also in abutment with the tail end of plugging piece, prevents plugging piece from separating on sealing sleeve;When connecting barrel is extruded on plugging piece, the inner wall of plugging piece is extruded on wire, so that wire is pressed tightly, and there will not be gap between the wire and plugging piece of pressing tightly, the aperture size of horn mouth mounting hole will be greater than the inner diameter size of connecting barrel, less than the outer diameter size of connecting barrel, and horn mouth mounting hole will limit connecting barrel to be inserted into the inside of explosion -proof casing, so that the connecting barrel after installation is stable.

Description

Technical Field

[0001] This utility model relates to the field of explosion protection, specifically an explosion-proof horn. Background Technology

[0002] The existing explosion-proof horn can only be installed with one wire. If multiple wires are to be installed, multiple horn mounting holes need to be set on the explosion-proof housing. This not only increases the processing technology of the explosion-proof housing, but also poses a risk of leakage from other horn holes. Utility Model Content

[0003] To address the problems in the existing technology, this utility model provides an explosion-proof horn.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an explosion-proof horn, including a sealing sleeve, wherein a connecting cylinder that cooperates with the sealing sleeve is provided inside the sealing sleeve; a sealing member is inserted inside the connecting cylinder, the end of the sealing member abuts against the sealing sleeve and limits the sealing member to prevent the sealing member from falling off.

[0005] Preferably, the sealing member has at least two through holes for wires to pass through, and at least one block groove is provided on the sealing member, the block groove sliding on the connecting cylinder.

[0006] Preferably, the connecting cylinder is provided with external threads, and the end of the connecting cylinder is provided with multiple telescopic plates. When the telescopic plates are squeezed by the sealing sleeve, the telescopic plates will deform towards the center at the same time. The inner wall of the connecting cylinder is provided with extrusion blocks that correspond one-to-one with the block grooves, and the block grooves slide along the extrusion blocks.

[0007] Preferably, the sealing sleeve has an internal thread, and the internal thread and the external thread are helically engaged.

[0008] Preferably, the sealing sleeve has a hollow structure.

[0009] Beneficial effects:

[0010] To ensure that at least two wires can be installed inside the sealing component, the sealing sleeve is rotated. The inner wall of the sealing sleeve presses against the connecting cylinder, while the sealing sleeve also presses against the tail end of the sealing component to prevent it from detaching from the sealing sleeve. When the connecting cylinder presses against the sealing component, the inner wall of the sealing component presses against the wires, compressing them. Since the material of the end of the sealing component near the gasket is soft and the material of the end away from the gasket is harder, there will be no gap between the compressed wires and the sealing component. The diameter of the flared mounting hole will be larger than the inner diameter of the connecting cylinder but smaller than the outer diameter of the connecting cylinder. The flared mounting hole will restrict the connecting cylinder from extending into the explosion-proof housing, limiting the position of the connecting cylinder and ensuring its stability after installation. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is one of the exploded view diagrams of this utility model;

[0014] Figure 3 This is the second exploded view of this utility model;

[0015] Figure 4 This is a cross-sectional view of the sealing sleeve of this utility model.

[0016] In the diagram: 1. Sealing sleeve; 11. Internal thread; 2. Connecting sleeve; 21. External thread; 22. Expansion plate; 23. Extrusion block; 3. Sealing component; 31. Through hole; 32. Block groove. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] In one embodiment, please refer to the appendix to the specification. Figures 1-4 As shown, the explosion-proof horn of this utility model includes a sealing sleeve 1, a connecting cylinder 2 that cooperates with the sealing sleeve 1, a sealing member 3 inserted inside the connecting cylinder 2, the end of the sealing member 3 abutting against the sealing sleeve 1 and limiting the sealing member 3 to prevent the sealing member 3 from falling off.

[0019] To allow at least two wires to be installed inside the sealing component 3, the sealing sleeve 1 is rotated. The inner wall of the sealing sleeve 1 presses against the connecting cylinder 2, while the sealing sleeve 1 also presses against the tail end of the sealing component 3 to prevent the sealing component 3 from detaching from the sealing sleeve 1. When the connecting cylinder 2 is pressed against the sealing component 3, the inner wall of the sealing component 3 presses against the wires, thus compressing the wires. Since the material of the end of the sealing component 3 near the washer is soft and the material of the end away from the washer is harder, there will be no gap between the compressed wires and the sealing component 3. The diameter of the flared mounting hole will be larger than the inner diameter of the connecting cylinder 2 and smaller than the outer diameter of the connecting cylinder 2. The flared mounting hole will restrict the connecting cylinder 2 from extending into the explosion-proof housing, limiting the connection cylinder 2 and making the connected cylinder 2 stable after installation.

[0020] The sealing component 3 has at least two through holes 31 for wires to pass through, and at least one block groove 32 is provided on the sealing component 3, which slides on the connecting cylinder 2.

[0021] The connecting cylinder 2 is provided with an external thread 21, and the end of the connecting cylinder 2 is provided with a plurality of telescopic plates 22. When the telescopic plate 22 is squeezed by the sealing sleeve 1, the telescopic plate 22 will deform towards the center at the same time. The inner wall of the connecting cylinder 2 is provided with a pressing block 23 corresponding to the block groove 32, and the block groove 32 slides along the pressing block 23.

[0022] The sealing sleeve 1 has an internal thread 11 inside, and the internal thread 11 and the external thread 21 are screwed together.

[0023] The sealing sleeve 1 has a hollow structure.

[0024] During installation, the wire is extended through the through hole 31 to the interior of the explosion-proof housing. When the sealing sleeve 1 is tightened, its internal frustum-shaped structure causes it to move under the interaction of the external thread 21 and the internal thread 11. The sealing sleeve 1 continuously compresses the telescopic piece 22, causing it to be compressed. This compression moves the compression block 23 located inside the telescopic piece 22. Since the sealing member 3 is made entirely of rubber, the compression block 23 is pressed into the groove 32, causing the sealing member 3 to deform. This creates a seal between the sealing member 3 and the wire. When the sealing sleeve 1 is tightened, it presses against the sealing member 3, causing the end of the sealing member 3 to deform, thus forming a seal between the end of the sealing member 3 and the sealing sleeve 1, achieving the explosion-proof effect.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof horn, characterized in that, The system includes a sealing sleeve (1), inside which a connecting sleeve (2) is provided to cooperate with it; a sealing element (3) is inserted inside the connecting sleeve (2), the end of the sealing element (3) abuts against the sealing sleeve (1) and limits the sealing element (3) to prevent the sealing element (3) from detaching; The sealing member (3) has at least two through holes (31) for wires to pass through, and at least one block groove (32) is provided on the sealing member (3), which slides on the connecting cylinder (2).

2. The explosion-proof horn according to claim 1, characterized in that, The connecting cylinder (2) is provided with an external thread (21), and the end of the connecting cylinder (2) is provided with a plurality of telescopic plates (22). When the telescopic plate (22) is squeezed by the sealing sleeve (1), the telescopic plate (22) will deform toward the center at the same time. The inner wall of the connecting cylinder (2) is provided with a pressing block (23) that corresponds one-to-one with the block groove (32), and the block groove (32) slides along the pressing block (23).

3. The explosion-proof horn according to claim 2, characterized in that, The sealing sleeve (1) has an internal thread (11) inside, and the internal thread (11) and the external thread (21) are helically engaged.

4. The explosion-proof horn according to claim 3, characterized in that, The sealing sleeve (1) has a hollow structure.

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