An outdoor connector and its protective housing

Abstract

The present invention relates to an outdoor connector and its protective housing. The connector includes an external protection unit and an internal signal transmission unit. The signal transmission unit includes a tail cable and a cable restraint. The protection unit includes a housing and a connection cap fixed to the tail of the housing in an anti-stretching manner. The rear end of a deformable body assembled at the front end inside the housing and axially limited with the housing is limited by the inner cavity surface of the rear end of the connection cap. When the connection cap moves forward, it can provide axial and radial compressive forces to the deformable body, so that the deformable body shrinks inward until the fitting surface on its inner wall is in close contact with the cable restraint to achieve anti-tensile. The outdoor connector of the present invention realizes reliable sealing and clamping of the tail cable of the internal signal transmission unit through the setting of the deformable body, and meets the sealing and anti-tensile requirements of the connector.

Description

Technical Field

[0001] The present invention belongs to the technical field of connectors, and particularly relates to an outdoor connector and its protective housing. Background Art

[0002] Currently, in order to facilitate the application of ordinary indoor connectors to outdoor environments, a protective housing is added to the outside of ordinary indoor connectors to achieve the functions of protection and sealing.

[0003] The currently applied ordinary indoor connector assembly is combined with an externally added protective housing to achieve the outdoor application scenario. Although it can achieve the sealing function, it cannot provide sufficient tensile resistance. Since the tensile resistance requirement outdoors is higher than that indoors, such an application puts the assembly in a dangerous state, bringing risks to signal transmission. Summary of the Invention

[0004] To solve the above problems, the present invention provides an outdoor connector with a novel structure, which transfers the tensile force of the cable at the tail of the connector to the external protective housing by arranging a deformable body in the housing for the cable restraint to pass through and converting the axial movement of the connection cap at the tail of the housing into radial extrusion of the deformable body, thereby achieving the tensile resistance of the connector.

[0005] The object of the present invention and the technical problems it solves are achieved by adopting the following technical solutions. An outdoor connector according to the present invention includes an external protection unit and an internal signal transmission unit. The signal transmission unit includes a tail cable and a cable restraint. The protection unit includes a housing and a connection cap fixed to the tail of the housing in an anti-stretching manner. The rear end face of the deformable body, which is assembled in the housing and axially limited with the housing, is limited by the inner cavity face at the tail of the connection cap. The rear end of the claw, which is assembled between the deformable body and the connection cap and has axial limitation with the deformable body, is limited by the inner cavity face at the tail of the connection cap. And when the connection cap moves forward, it can provide axial and radial compressive forces for the claw to compress the deformable body, so that the deformable body shrinks inward until the fitting surface on its inner wall is closely attached to the cable restraint to achieve tensile resistance.

[0006] The object of the present invention and the technical problems it solves can also be further realized by adopting the following technical measures.

[0007] In the aforementioned outdoor connector, the connection cap converts the axial movement into radial and axial extrusion of the deformable body through the cooperation of the surface that gradually converges from front to back in its inner cavity and the corresponding slope surface on the claw.

[0008] In the aforementioned outdoor connector, the fitting surface on the inner wall of the deformable body includes a surface that fits with the outer peripheral surface of the cable restraint under external extrusion and a stepped surface that fits with and limits the rear end face of the cable restraint.

[0009] In the aforementioned outdoor connector, the inner wall of the deformable body is a smooth surface or a surface with concave-convex patterns for enhancing friction.

[0010] In the aforementioned outdoor connector, the tail of the cable restraint is fixed or integrally formed with a fixing sleeve having a convex and concave pattern on the outer circumference, and the fitting surface on the inner wall of the deformable body fits with the fixing sleeve under the action of the extrusion force.

[0011] In the aforementioned outdoor connector, the deformable body has a slit in the radial direction for facilitating its opening and clamping.

[0012] In the aforementioned outdoor connector, the clamping claw and the deformable body are an integrated structure.

[0013] The purpose of the present invention and the technical problem to be solved are achieved by adopting the following technical solutions. According to an outdoor connector protection shell proposed by the present invention, it includes a shell, a connecting cap connected and fixed to the rear of the shell in an anti-stretching manner, and a deformable body whose front end is assembled in the shell and axially limited with the shell, and the rear end face of the deformable body is limited by the inner cavity surface of the rear end of the connecting cap; the rear end of a clamping claw assembled between the deformable body and the connecting cap and axially limited with the deformable body is limited by the inner cavity surface of the rear end of the connecting cap, and when the connecting cap moves forward, it can provide axial and radial force for the clamping claw to squeeze the deformable body, so that the deformable body shrinks inward to the fitting surface on its inner wall and fits tightly with the tail component of the signal transmission unit penetrated therein to achieve tension resistance.

[0014] The purpose of the present invention and the solution to its technical problems can be further achieved by adopting the following technical measures.

[0015] In the aforementioned outdoor connector protection housing, the clamping claw and the deformable body are an integrated structure.

[0016] The outdoor connector protection shell mentioned above, wherein the deformable body has a slit in the radial direction for facilitating its opening and clamping.

[0017] Compared with the prior art, the present invention has obvious advantages and beneficial effects. By means of the above technical solution, the present invention can achieve considerable technical advancement and practicality, and has wide industrial utilization value, and has at least the following advantages:

[0018] The outdoor connector of the present invention realizes radial extrusion of the deformable body through axial movement of the connecting cap, thereby realizing reliable sealing and clamping of the rear cable of the internal signal transmission unit by the deformable body. When the cable is stretched by external force, the tensile force is transferred to the external protective shell due to the clamping of the deformable body, thereby realizing the sealing and tensile resistance requirements of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic structural diagram of the outdoor connector in Embodiment 1 of the present invention;

[0020] Figure 2A Schematic structural diagram of the deformable body of the outdoor connector in Embodiment 1 of the present invention;

[0021] Figure 2B Another schematic structural diagram of the deformable body of the outdoor connector in Embodiment 1 of the present invention;

[0022] Figure 3 Schematic structural diagram of the outdoor connector in Embodiment 2 of the present invention;

[0023] Figure 4A Schematic structural diagram of the fixing sleeve in Embodiment 2 of the present invention;

[0024] Figure 4B Another schematic structural diagram of the fixing sleeve in Embodiment 2 of the present invention.

[0025]

Description of Main Component Symbols

[0026] 1: Protection unit

[0027] 10: Housing

[0028] 11: Deformable body

[0029] 12: Claw

[0030] 13: Nut

[0031] 2: Signal transmission unit

[0032] 22: Cable restraint

[0033] 23: Cable

[0034] 3: Fixing sleeve Detailed implementation manners

[0035] To further elaborate on the technical means and effects adopted by the present invention to achieve the intended invention purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features and effects of the outdoor connector proposed according to the present invention as follows.

[0036] Please refer to Figure 1 -2, which are schematic diagrams of the respective parts of the outdoor connector in Embodiment 1 of the present invention. The outdoor connector includes an external protection unit 1 and an internal signal transmission unit 2. The protection unit includes a housing 10, a deformable body 11, a claw 12 and a nut 13; the signal transmission unit is a common indoor connector assembly, and the signal transmission unit includes a tail cable 23 and a cable restraint 22 fixed on the cable 23.

[0037] The connecting cap 13 is connected and fixed to the tail of the housing 10 in an anti-stretching manner, and the rear end of its inner cavity gradually contracts from front to back. In the embodiment of the present invention, the connecting cap is fixed to the housing 10 in an anti-stretching manner through the cooperation of the internal thread at its front end and the external thread at the tail of the housing 10, but it is not limited thereto.

[0038] The front end of the deformable body 11 is assembled inside the housing 10 and is axially blocked and limited by the stepped surface inside the housing 10. The rear end extends out of the tail of the housing 10 and enters the inner cavity of the connecting cap 13 and is limited by the contracting end surface at the tail of the connecting cap 13. A through hole for the cable restraint 22 to pass through is axially provided inside the deformable body. The cable 23 passes through the through hole inside the deformable body and extends out from the connecting cap at the tail of the protection unit. At least part of the cable restraint 22 is disposed in the through hole inside the deformable body 11 and is axially limited with the deformable body 11. In the embodiment of the present invention, the inner wall of the deformable body 11 has a fitting surface that fits with the cable restraint 22 under the extrusion of an external force to achieve axial limitation of the two. Preferably, the rear end of the fitting surface is a stepped surface that blocks and limits the rear end surface of the cable restraint, that is, the cross section of the fitting surface is generally L-shaped. In the embodiment of the present invention, the stepped surface is the front end surface of the inner protrusion at the rear end of the deformable body 11, and the stepped surface is an inclined surface or a curved surface, but it is not limited thereto.

[0039] The inner wall of the deformable body 11 can be a smooth surface or can be provided with concave and convex patterns to enhance its frictional force.

[0040] In the embodiment of the present invention, the contracting surface of the connecting cap 13 in contact with the deformable body 11 is an inclined surface or an arc surface.

[0041] The claw 12 is tightly sleeved on the outer periphery of the deformable body 11 and is axially limited with the deformable body 11. The front end of the claw is located between the deformable body and the housing 10. The convex part at the rear end of the claw 12 has an outer peripheral surface adapted to the inner peripheral contracting surface of the connecting cap 13. When the connecting cap 13 moves forward, the inner peripheral contracting surface thereof squeezes the convex part at the rear end of the claw. Due to the existence of the contracting surface, the force received by the convex part at the rear end can be decomposed into an axial force and a radial force. Due to the existence of the axial limiting structure, the claw has no axial movement, but under the action of the radial force, it squeezes the deformable body 11 inward to make it deform inward to tightly hold the cable restraint 22 and the cable 23. And at this time, the fitting surface inside the deformable body 11 fits the cable restraint 22 on the cable 23 under the action of pressure, realizing anti-tensile.

[0042] In the embodiment of the present invention, the claw 11 is further provided with a catch for cooperating with the outer peripheral groove of the deformable body 11 to achieve axial limitation of the two. The outer peripheral surface of the front end of the catch has a slope surface adapted to the inner cavity contracting surface of the connecting cap for transmitting the axial force and the radial force.

[0043] In the embodiment of the present invention, the claw 11 is axially limited with the rear end face of the shell through the peripheral protrusion at the front end.

[0044] Please refer to Figures 2-4, which are schematic diagrams of the structures of various parts of Example 2 of the present invention. In this embodiment, a fixed sleeve 3 is fixedly provided at the tail of the cable restraint 22, and the fixed sleeve 3 is tightly attached to the tail of the cable restraint 22, and has an undulating texture on the outside to enhance its surface friction. The fitting surface on the inner wall of the deformable body fits on the outer periphery of the fixed sleeve 3 under the pressure of the connecting cap 13 to achieve tensile resistance. And the rear end of the fitting surface of the deformable body is a stepped surface that stops and limits with the rear end surface of the fixed sleeve to enhance the tensile resistance. In the embodiment of the present invention, the stepped surface that stops and limits with the rear end surface of the fixed sleeve is the front end surface of the inner convex ring at the rear end of the deformable body, and the inner diameter of the inner convex ring at the rear end is slightly larger than the outer diameter of the cable 23. The fixed sleeve 3 is a closed annular structure or an annular structure with one side open.

[0045] In another embodiment of the present invention, the fixing sleeve 3 is integrally formed at the tail of the cable restraint, that is, the tail of the cable restraint is provided with convex and concave patterns.

[0046] The deformable body 11 has slits in the radial direction to facilitate breaking it apart and clamping it on the cable 23 or the cable restraint 22 .

[0047] In another embodiment of the present invention, the claw and the deformable body are an integrated structure, that is, the outer peripheral surface of the rear end of the deformable body is provided with a surface that is adapted to the contraction surface of the connecting cap and can transmit the radial force caused by the axial movement of the connecting cap inward to achieve radial compression, so that its internal fitting surface is tightly attached to the fixed sleeve or the cable restraint to achieve the tensile resistance of the connector.

[0048] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An outdoor connector, which includes an external protection unit and an internal signal transmission unit, and is characterized in that: The signal transmission unit includes a tail cable and a cable restraint fixed on the tail cable; the protection unit includes a shell and a connecting nut fixed to the tail of the shell by the cooperation of the internal thread at its front end and the external thread at the rear end of the shell; the rear end of the deformable body whose front end is assembled in the shell and axially limited by the shell is limited by the rear end inner cavity surface of the connecting cap, and when the connecting cap moves forward, it can provide axial and radial compression force for the deformable body, so that the deformable body shrinks inward to the fitting surface on its inner wall and fits tightly with the cable restraint to achieve tensile resistance; the deformable body achieves axial and radial extrusion by the cooperation of the outer periphery of its rear end and the surface of the inner cavity at the rear end of the connecting cap that gradually converges from front to back; the fitting surface on the inner wall of the deformable body includes a surface that fits with the outer periphery of the cable restraint under external force extrusion and a stepped surface that fits with the rear end surface of the cable restraint.

2. The outdoor connector according to claim 1, wherein The rear end face of the deformable body is limited by the inner cavity surface of the connecting cap, and the rear end of the claw assembled between the deformable body and the connecting cap and having an axial limit with the deformable body is limited by the inner cavity surface of the tail part of the connecting cap, and can compress the deformable body forward and inward by cooperating with the surface of the inner cavity of the connecting cap that gradually converges from front to back when the connecting cap moves forward.

3. The outdoor connector according to claim 1 or 2, characterized in that, The inner wall of the deformable body is a smooth surface or a surface with concave-convex patterns for enhancing friction.

4. The outdoor connector according to claim 1 or 2, characterized in that, A fixing sleeve with convex and concave patterns on the outer periphery is fixed or integrally formed at the tail of the cable restraint, and the fitting surface on the inner wall of the deformable body fits with the fixing sleeve under the action of the extrusion force.

5. The outdoor connector according to claim 1 or 2, characterized in that, The deformable body has a slit in the radial direction for facilitating its opening and clamping.

6. An outdoor connector protection housing, characterized in that, It includes a shell, a connecting cap fixed at the rear end of the shell by cooperation between its front end internal thread and the rear end external thread of the shell, and a deformable body whose front end is assembled in the shell and axially limited by the shell, and the rear end of the deformable body is limited by the rear end inner cavity surface of the connecting cap; and when the connecting cap moves forward, it can provide forward and inward extrusion force for the deformable body, so that the deformable body shrinks inward to the fitting surface on its inner wall and fits tightly with the rear part of the signal transmission unit inserted therein to achieve tensile resistance, and the signal transmission unit includes a rear cable and a cable restraint fixed on the rear cable; the deformable body achieves axial and radial extrusion by cooperation between its rear end outer periphery and the surface of the rear end inner cavity of the connecting cap that gradually converges from front to back; the fitting surface on the inner wall of the deformable body includes a surface that fits with the outer periphery of the cable restraint under external force extrusion and a stepped surface that fits with the rear end surface of the cable restraint.

7. The outdoor connector protection housing according to claim 6, characterized in that, The rear end of the claw, which is assembled between the deformable body and the connecting cap and has an axial limit between the claw and the deformable body, is limited by the inner cavity surface of the rear end of the connecting cap, and the claw can compress the deformable body forward and inward by cooperating with the surface of the inner cavity of the connecting cap that gradually converges from front to back when the connecting cap moves forward.

8. The outdoor connector protection housing according to claim 6, characterized in that, The deformable body has a slit in the radial direction for facilitating its opening and clamping.

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