Explosion-proof connector with high reliability

Abstract

The explosion-proof connector comprises a first main body and a second main body, the front end of the first main body is provided with a first connecting part, the rear end of the first main body is provided with a second connecting part, the front end of the first connecting part is in threaded connection with a pressing sleeve, and the inner wall of one end, far away from the first main body, of the pressing sleeve is provided with a pressing ring; a connecting groove is formed in the front end of the first connecting part, a connecting boss is arranged at the rear end of the second main body, a check ring is arranged on the outer wall of the end, close to the connecting boss, of the second main body, the connecting boss is clamped and embedded into the connecting groove, the pressing ring abuts against the check ring, and a first sealing groove is formed in the outer wall of the connecting boss; and sealing rings are embedded in the first sealing groove and the second sealing groove. According to the utility model, the first main body and the second main body are tightly pressed and locked through the pressing cap, so that the loosening phenomenon between the first main body and the second main body is avoided, the overall sealing effect of the connector is improved, and the use reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to an explosion-proof connector with high reliability. Background Art

[0002] Explosion-proof connectors are special electrical connectors that are mainly used in hazardous environments, such as petroleum, chemical, pharmaceutical, mining and other industries. In these places, due to the presence of flammable and explosive gases or dust, ordinary electrical equipment is prone to fire or explosion, so explosion-proof electrical connectors are needed to ensure the safe operation of electrical equipment.

[0003] Existing explosion-proof connectors are usually composed of two main bodies, which are generally connected by a threaded structure during assembly. This structure makes it easy for the two main bodies to rotate during use, causing the threaded connection to loosen or even come loose. In addition, since the connection adopts a threaded structure, it is inconvenient to install a seal at the connection, which leads to a low sealing effect and low reliability of the connector. Utility Model Content

[0004] The utility model provides an explosion-proof connector with high reliability to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A highly reliable explosion-proof connector comprises a first body and a second body, wherein the front end of the first body is provided with a first connecting portion, the rear end of the first body is provided with a second connecting portion, the front end of the first connecting portion is threadedly connected with a compression sleeve, the inner wall of an end of the compression sleeve away from the first body is provided with a compression ring, the front end of the first connecting portion is provided with a connecting groove, the rear end of the second body is provided with a connecting boss, the outer wall of an end of the second body close to the connecting boss is provided with a retaining ring, the connecting boss is embedded in the connecting groove, the compression ring abuts against the retaining ring, the outer wall of the connecting boss is provided with a first sealing groove, the outer wall of the second connecting portion is provided with a second sealing groove, and sealing rings are embedded in both the first sealing groove and the second sealing groove.

[0007] Preferably, a compression sealing sleeve is provided inside the front end of the first main body, a clamping claw sleeve is sleeved outside the compression sealing sleeve, and a dust cover is embedded in the front end of the compression sealing sleeve.

[0008] Preferably, a compression cap is threadedly connected to the front end of the second main body.

[0009] Preferably, the surface of the compression sleeve is provided with anti-slip grooves.

[0010] Beneficial Effects

[0011] The above one or more technical solutions in the highly reliable explosion-proof connector provided by the embodiment of the utility model have at least one of the following technical effects:

[0012] The utility model adopts the above technical scheme, when the first body and the second body are connected, the connecting boss card is embedded in the connecting groove, and the clamping ring is pressed against the retaining ring by tightening the clamping sleeve, so as to complete the clamping and fixing between the first body and the second body. This structure ensures that even if the second body and the first body rotate, there will be no loosening or even loosening. Moreover, a sealing ring is provided on the connecting boss, and the connecting boss card is embedded in the connecting groove. This structure not only improves the sealing performance of the connection between the connecting boss and the connecting groove, but also does not cause interference to the connection, solves the problem that it is inconvenient to install a seal at the connection of the existing explosion-proof connector, improves the sealing effect between the first body and the second body, and greatly improves the reliability of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0016] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0017] 1. First body; 2. Second body; 3. First connecting part; 4. Second connecting part; 5. Compression sleeve; 6. Compression ring; 7. Connecting groove; 8. Connecting boss; 9. Retaining ring; 10. First sealing groove; 11. Second sealing groove; 12. Sealing ring; 13. Compression sealing sleeve; 14. Clamping claw sleeve; 15. Compression cap; 16. Anti-slip pattern. DETAILED DESCRIPTION

[0018] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0020] 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.

[0021] like Figure 1-3 As shown, it is a structural schematic diagram of a highly reliable explosion-proof connector in a preferred embodiment of the utility model;

[0022] In this embodiment, a first main body 1 and a second main body 2 are included. The front end of the first main body 1 is integrally provided with a first connecting portion 3, and the rear end of the first main body 1 is integrally provided with a second connecting portion 4. The front end of the first connecting portion 3 is threadedly connected with a compression sleeve 5, and the inner wall of the end of the compression sleeve 5 away from the first main body 1 is integrally provided with a compression ring 6. The front end of the first connecting portion 3 is provided with a connecting groove 7, and the rear end of the second main body 2 is provided with a connecting boss 8. The outer wall of the end of the second main body 2 close to the connecting boss 8 is integrally provided with a retaining ring 9. The inner diameter of the compression ring 6 is smaller than the outer diameter of the retaining ring 9. The connecting boss 8 is embedded in the connecting groove 7, and the outer wall of the connecting boss 8 is tightly fitted with the inner wall of the connecting groove 7. The clamping ring 6 is in contact with the retaining ring 9, and the clamping sleeve 5 is screwed so that the clamping ring 6 on the clamping sleeve 5 is pressed against the retaining ring 9 on the second main body 2, thereby pressing and fixing the first main body 1 and the second main body 2. This structure ensures that even if the second main body 2 and the first main body 1 rotate, they will not loosen or even come loose. The outer wall of the connecting boss 8 is provided with a first sealing groove 10, and the outer wall of the second connecting portion 4 is provided with a second sealing groove 11. The first sealing groove 10 and the second sealing groove 11 are both embedded with sealing rings 12. The sealing ring 12 inside the first sealing groove 10 is tightly fitted with the inner wall of the connecting groove 7, and the sealing effect between the first main body 1 and the second main body is improved by the sealing ring 12.

[0023] In this embodiment, a compression sealing sleeve 13 is provided inside the front end of the first main body 1, and a clamping claw sleeve 14 is provided outside the compression sealing sleeve 13. The compression sealing sleeve 13 enhances the sealing effect when the cable is inserted into the first main body 1, and the clamping claw sleeve 14 is used to clamp the cable to prevent it from retreating.

[0024] In this embodiment, a clamping cap 15 is threadedly connected to the front end of the second body 2, and the clamping cap 15 is used to squeeze the clamping claw sleeve 14 so that the clamping claw sleeve 14 clamps the cable, thereby preventing the cable from retreating.

[0025] In this embodiment, the surface of the compression sleeve 5 is provided with anti-skid patterns 16 , and the anti-skid patterns 16 play an anti-skid role when the compression sleeve 5 is tightened.

[0026] The utility model provides an explosion-proof connector with high reliability. Its installation method, connection method or setting method are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0027] Technologies not described in detail in the present invention are all well-known technologies. Those skilled in the art can easily implement the present invention based on understanding this specification, and the contents shown in the drawings are part of this specification.

[0028] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A highly reliable explosion-proof connector, characterized in that: The invention comprises a first main body (1) and a second main body (2), wherein the front end of the first main body (1) is provided with a first connecting portion (3), the rear end of the first main body (1) is provided with a second connecting portion (4), the front end of the first connecting portion (3) is threadedly connected with a compression sleeve (5), the inner wall of the end of the compression sleeve (5) away from the first main body (1) is provided with a compression ring (6), the front end of the first connecting portion (3) is provided with a connecting groove (7), the rear end of the second main body (2) is provided with a connecting boss (8), the outer wall of the end of the second main body (2) close to the connecting boss (8) is provided with a retaining ring (9), the connecting boss (8) is embedded in the connecting groove (7), the compression ring (6) and the retaining ring (9) are in contact with each other, the outer wall of the connecting boss (8) is provided with a first sealing groove (10), the outer wall of the second connecting portion (4) is provided with a second sealing groove (11), and sealing rings (12) are embedded in both the first sealing groove (10) and the second sealing groove (11).

2. The explosion-proof connector with high reliability according to claim 1, characterized in that: A compression sealing sleeve (13) is provided inside the front end of the first main body (1), a clamping claw sleeve (14) is sleeved outside the compression sealing sleeve (13), and a dust cover is embedded in the front end of the compression sealing sleeve (13).

3. The explosion-proof connector with high reliability according to claim 1, characterized in that: A compression cap (15) is threadedly connected to the front end of the second main body (2).

4. The explosion-proof connector with high reliability according to claim 1, characterized in that: The surface of the compression sleeve (5) is provided with anti-slip grooves (16).

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