Non-return cable structure

Abstract

The utility model relates to a non-return cable structure, which comprises a shell sheath, a compensation gasket is embedded in the shell sheath, a connecting sleeve is arranged on the left side of the shell sheath, the connecting sleeve and the shell sheath are fixed through a thread structure, a pressing piece is arranged between the shell sheath and the connecting sleeve, and the connecting sleeve is connected with the shell sheath through a thread structure. The connecting sleeve is fixed on the shell sheath, the pressing piece is fixed on the connecting sleeve through a thread structure, the contact surfaces between the shell sheath and the pressing piece are both of a clamping non-return structure, when the shell sheath moves leftwards, the connecting sleeve extrudes the compensation gasket, so that the compensation gasket is deformed, and a non-return structure is formed through the thickened compensation gasket and the clamping non-return structure. And the connection between the male head and the female head is not easy to loosen.

Description

Technical Field

[0001] The utility model relates to a non-return cable structure. Background Art

[0002] When laying cable lines, cable connectors are needed to connect and fix the stripped cables. Commonly used cable connectors generally include a connector body and a clamping sleeve screwed onto the connector body. The clamping sleeve forces the connector body to deform to a certain extent to achieve connection and fixation of the cable.

[0003] The existing cable connector includes a male head and a female head structure, and a sealing gasket is arranged between the male head and the female head. In the prior art, the thickness of the sealing ring is between 1.3-1.4 mm, and it only has a sealing effect. The male head and the female head are connected by a bolt structure. The reliability of this connection structure is low. Once the thread is loose, the seal between the male head and the female head cannot be guaranteed.

[0004] Therefore, a non-return cable structure is needed, which has more reliable connection reliability than the existing technology and is not easy to loosen between the male head and the female head. Utility Model Content

[0005] The purpose of the utility model is to solve the deficiencies of the above prior art and provide a non-return cable structure. A non-return structure is formed by thickening the compensation gasket and the clamping non-return structure, so that the connection between the male head and the female head is not easy to loosen. The specific scheme is as follows:

[0006] A non-return cable structure comprises an outer shell sheath, wherein a compensating washer is embedded in the outer shell sheath, a connecting sleeve is provided on the left side of the outer shell sheath, the connecting sleeve and the outer shell sheath are fixed by a threaded structure, a clamping piece is provided between the outer shell sheath and the connecting sleeve, the clamping piece is fixed to the connecting sleeve by a threaded structure, the contact surfaces between the outer shell sheath and the clamping piece are both clamping non-return structures, and when the outer shell sheath moves to the left, the connecting sleeve will squeeze the compensating washer, causing the compensating washer to deform.

[0007] The non-return performance is enhanced by limiting the length relationship between the compensation gasket and the snap-on non-return structure. The thickness of the compensation gasket is n+m millimeters, the maximum height of the snap-on non-return structure is mx millimeters, the value range of n is 1.3-1.4, and the value range of x is 0-0.15. By changing the value of m, the thickness of the compensation gasket and the height of the snap-on non-return structure can be controlled.

[0008] In order to better fix it to the wall, an anti-skid gasket is provided between the pressing piece and the connecting sleeve. The anti-skid gasket is provided with anti-skid teeth. The material of the anti-skid gasket is copper, and the outer surface of the anti-skid gasket is plated with nickel.

[0009] In order to achieve stable elastic compensation, the compensation washer is an integral annular structure.

[0010] In order to achieve a better non-return effect, the clamping non-return structure is a wave-shaped concave-convex surface, and the clamping non-return structure has at least 4 protrusions.

[0011] In order to strengthen the elastic compensation of the compensation gasket and improve the non-return effect, the material of the compensation gasket is silicone rubber.

[0012] In order to make the pressing piece more durable and pressure-resistant, the pressing piece is made of copper, and the outer surface of the pressing piece is plated with nickel.

[0013] Beneficial effect: Through the threaded structure between the clamping piece and the connecting sleeve, the connecting sleeve can be fixed to the wall first, and then the outer shell sleeve can be fixed, which is convenient for the subsequent fixing of the outer shell sleeve. The outer shell sleeve needs to overcome the elastic force of the compensation washer to be tightened onto the connecting sleeve. During the tightening process, the friction between the snap-fit ​​check structure will become larger and larger until a certain torque is reached and it cannot be tightened. At this time, the outer shell sleeve and the connecting sleeve need to overcome the elastic force of the compensation washer to cause loosening under the fixation of the snap-fit ​​check structure, forming a check structure. Compared with the prior art, this connection structure can make the connection between the male head and the female head less likely to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the cross-sectional structure of the male connector of the non-return cable structure;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the female connector of the non-return cable structure;

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the compression sleeve of the non-return cable structure;

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the check cable structure after installation;

[0018] Figure 5 It is a schematic diagram of the unfolded structure of the clamping non-return structure of the non-return cable structure;

[0019] In the figure: 1. outer shell sleeve, 2. snap-on non-return structure, 2-2. protrusion, 3. compensation washer, 4. connecting sleeve, 5. pressing piece, 6. anti-slip gasket. DETAILED DESCRIPTION

[0020] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0021] In this embodiment:

[0022] Please see Figure 1-Figure 5 A non-return cable structure comprises an outer shell sheath 1, a compensating washer 3 is embedded in the outer shell sheath 1, a connecting sleeve 4 is provided on the left side of the outer shell sheath 1, the connecting sleeve 4 and the outer shell sheath 1 are fixed by a threaded structure, a clamping piece 5 is provided between the outer shell sheath 1 and the connecting sleeve 4, the clamping piece 5 is fixed to the connecting sleeve 4 by a threaded structure, the contact surfaces between the outer shell sheath 1 and the clamping piece 5 are both clamping non-return structures 2, when the outer shell sheath 1 moves to the left, the connecting sleeve 4 will squeeze the compensating washer 3, causing the compensating washer 3 to deform.

[0023] The thickness of the compensation gasket 3 is n+m mm, the maximum height of the snap-in check structure 2 is mx mm, the value range of n is 1.3-1.4, the value range of x is 0-0.15, and m is the maximum deformation distance of the compensation gasket 3. By changing the value of m, the thickness of the compensation gasket 3 and the height of the snap-in check structure 2 can be controlled. In this embodiment, the thickness of the compensation gasket 3 is 1.8 mm, and the maximum height of the snap-in check structure 2 is 0.35 mm.

[0024] An anti-skid gasket 6 is provided between the clamping piece 5 and the connecting sleeve 4. The anti-skid gasket 6 is provided with anti-skid teeth. The material of the anti-skid gasket 6 is copper. The outer surface of the anti-skid gasket 6 is plated with nickel. The compensation gasket 3 is an integral annular structure. The snap-on check structure 2 is a wavy concave-convex surface. The snap-on check structure 2 has at least 4 protrusions 2-2. The material of the compensation gasket 3 is silicone rubber. The material of the clamping piece 5 is copper. The outer surface of the clamping piece 5 is plated with nickel.

[0025] The principle of this device is described below:

[0026] Through the threaded structure between the clamping piece 5 and the connecting sleeve 4, the connecting sleeve 4 can be fixed to the wall first, and then the outer shell sleeve 1 can be fixed, which is convenient for the subsequent fixing of the outer shell sleeve 1. The outer shell sleeve 1 needs to overcome the elastic force of the compensation washer 3 and be tightened onto the connecting sleeve 4. During the tightening process, since the maximum height of the snap-in check structure 2 is less than the maximum deformable distance of the compensation washer 3, the friction between the snap-in check structure 2 will become larger and larger until a certain torque is reached and it cannot be tightened. At this time, the outer shell sleeve 1 and the connecting sleeve 4 need to overcome the elastic force of the compensation washer 3 to cause loosening under the fixation of the snap-in check structure 2, thereby forming a check structure. Compared with the prior art, this connection structure can make the connection between the male head and the female head less likely to loosen.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A non-return cable structure, characterized in that: It includes an outer shell sleeve, in which a compensation gasket is embedded, a connecting sleeve is provided on the left side of the outer shell sleeve, the connecting sleeve and the outer shell sleeve are fixed by a threaded structure, a clamping piece is provided between the outer shell sleeve and the connecting sleeve, the clamping piece is fixed to the connecting sleeve by a threaded structure, the contact surfaces between the outer shell sleeve and the clamping piece are both snap-on check structures, when the outer shell sleeve moves to the left, the connecting sleeve will squeeze the compensation gasket, causing the compensation gasket to deform.

2. A non-return cable structure according to claim 1, characterized in that: The thickness of the compensation gasket is n+m millimeters, the maximum height of the snap-on check structure is mx millimeters, the value range of n is 1.3-1.4, and the value range of x is 0-0.

15. By changing the value of m, the thickness of the compensation gasket and the height of the snap-on check structure can be controlled.

3. The non-return cable structure according to claim 1, characterized in that: An anti-skid gasket is arranged between the pressing piece and the connecting sleeve, the anti-skid gasket is provided with anti-skid teeth, the material of the anti-skid gasket is copper, and the outer surface of the anti-skid gasket is plated with nickel.

4. The non-return cable structure according to claim 1, characterized in that: The compensation gasket is an integral annular structure.

5. The non-return cable structure according to claim 1, characterized in that: The clamping non-return structure is a wave-shaped concave-convex surface, and the clamping non-return structure has at least 4 protrusions.

6. The non-return cable structure according to claim 1, characterized in that: The material of the compensation gasket is silicone rubber.

7. The non-return cable structure according to claim 1, characterized in that: The material of the pressing piece is copper, and the outer surface of the pressing piece is plated with nickel.

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