Waterproof structure for cable wall-penetrating installation

Abstract

The utility model relates to the technical field of cable installation, in particular to a waterproof structure for cable wall-penetrating installation, which is applied to wall-penetrating installation of cables in an electric power cabinet and comprises an installation hole, an installation ring, a first sealing ring, a fixing mechanism and a clamping mechanism, the installation hole is arranged on the side wall of the electric power cabinet in a penetrating mode, and the installation ring is arranged in the installation hole in a sliding mode. The number of the first sealing rings is multiple, the multiple first sealing rings are fixedly arranged on the inner wall of the mounting ring, the fixing mechanism is arranged on the mounting ring and used for mounting and fixing the mounting ring and the power cabinet, and the clamping mechanism is arranged in the mounting ring, so that sealing between a cable and the mounting ring is conveniently achieved through the first sealing rings; meanwhile, sealing between the sealing ring and the power cabinet is achieved through the second sealing ring, the cable can be positioned and fixed in the mounting ring through the clamping mechanism, and therefore the problem that in the prior art, the cable is prone to being affected by external force and is disengaged from the interior of the power cabinet is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable installation, and particularly relates to a waterproof structure for cable through-wall installation. Background Art

[0002] Electrical appliances inside power equipment need to operate in a dry environment to avoid faults such as electric leakage and short circuit. Therefore, the boxes of power equipment used outdoors or in humid environments are all provided with waterproof sealing structures. During the cable setting process of power equipment, the through-wall installation of cables is often involved.

[0003] When there is no waterproof requirement, the cable usually directly passes through the wall hole for wiring installation; when there is a waterproof requirement, the traditional cable through-wall installation method is to set a sealing rubber ring or sealing rubber tube between the cable and the box wall to achieve waterproofing. This waterproof installation structure is simple and easy to operate, but it is prone to water leakage. Especially after the cable is accidentally pulled, it is easy to cause the displacement of the sealing rubber ring or sealing rubber tube, resulting in problems of loose sealing or sealing failure, so that the water vapor outside the box can enter the box along the wall hole and the cable, causing operation failures of the power equipment.

[0004] In order to improve the waterproof performance between the cable and the power equipment, after retrieval, Chinese Patent Publication No. CN215528533U discloses a waterproof structure for cable through-wall installation, including: a first sleeve, with a limiting convex ring provided at its first end and a first connection part provided at its second end, and the second end of the first sleeve is inserted into the installation hole from the first side of the box wall; a second sleeve, with a limiting convex ring provided at its first end and a second connection part provided at its second end, and the second end of the second sleeve is inserted into the installation hole from the second side of the box wall, and the second connection part is adaptively connected to the first connection part; two gaskets, respectively sleeved on the first sleeve and the second sleeve, located between the box wall and the first sleeve or the second sleeve; wherein, the first sleeve and the second sleeve are provided with coaxially connected wire passing holes, and a plurality of sealing edges are provided along the circumference on the inner wall of the wire passing holes, and the sealing edges are of flexible structures.

[0005] During the use of the above device, the sealing between the outer wall of the sleeve and the inner wall of the installation hole is achieved through the gasket, and at the same time, the effective sealing between the cable and the inner wall of the sleeve is achieved through the flexible sealing edge, so as to facilitate the sealing between the cable and the power equipment. However, since the cable is positioned in the sleeve only by the friction force between the flexible sealing edges, the cable will move in the sleeve when affected by external forces, so that the cable is easily pulled out of the power equipment due to external forces, resulting in the disconnection between the cable and the electrical equipment, and further affecting the normal operation of the power equipment. Summary of the Utility Model

[0006] The utility model provides a waterproof structure for cable through-wall installation, which solves the problem that the cable is easily pulled out of the power cabinet due to external forces in the prior art.

[0007] The technical solution of the present utility model is as follows: A waterproof structure for cable through-wall installation, which is applied to the through-wall installation of cables in a power cabinet, includes an installation hole, an installation ring, a first sealing ring, a fixing mechanism, and a clamping mechanism;

[0008] The installation hole is penetrated and arranged on the side wall of the power cabinet;

[0009] The installation ring is slidably arranged in the installation hole;

[0010] A plurality of the first sealing rings are provided, and the plurality of first sealing rings are fixedly arranged on the inner wall of the installation ring;

[0011] The fixing mechanism is arranged on the installation ring and is used for installing and fixing between the installation ring and the power cabinet;

[0012] The clamping mechanism is arranged in the installation ring and is used for clamping and fixing between the cable and the installation ring.

[0013] Preferably, the fixing mechanism includes:

[0014] A fixing ring, which is fixedly arranged on the installation ring;

[0015] A positioning groove, which is annularly arranged and is opened at one end of the installation ring far from the fixing ring;

[0016] Wherein, the side wall of the positioning groove is provided with an external thread;

[0017] A first positioning ring, the inner wall of which is provided with an internal thread, and the first positioning ring is arranged on the installation ring through thread fit;

[0018] A second positioning ring, which is fixedly arranged on the first positioning ring;

[0019] A limiting mechanism, which is arranged on the side wall of the first positioning ring and is used for limiting the rotation angle of the first positioning ring.

[0020] Furthermore, the clamping mechanism includes:

[0021] Clamping grooves, a plurality of clamping grooves are opened on the side wall of the installation ring;

[0022] Clamping through holes, which are opened at the bottom of the clamping grooves;

[0023] Clamping columns, two clamping columns are rotatably arranged in the clamping through holes;

[0024] A first conduction block, which is fixedly arranged on the clamping column;

[0025] A second conduction block is disposed on a side of the mounting ring away from the clamping groove, and the first conduction block is hinged to the second conduction block;

[0026] A clamping block is disposed in the clamping groove, and the clamping block is hinged to the first conduction block.

[0027] Furthermore, a first torsion spring is further included. The first torsion spring is sleeved on the clamping column, and two ends of the first torsion spring are respectively fixedly connected to the clamping column and a side wall of the clamping through hole.

[0028] Furthermore, the limiting mechanism includes:

[0029] A limiting groove is formed in a side wall of the first positioning ring;

[0030] A limiting post is rotatably disposed in the limiting groove;

[0031] A limiting block is fixedly disposed on the limiting post;

[0032] A driving block is fixedly disposed on the limiting post, and an end of the driving block away from the limiting post extends out of the limiting groove;

[0033] A second torsion spring is sleeved on the limiting post, and two ends of the second torsion spring are respectively connected to the limiting block and a side wall of the limiting groove;

[0034] A plurality of limiting through grooves are provided, and the plurality of limiting through grooves are formed in a side wall of the positioning groove.

[0035] On the basis of the above solution, a sealing assembly is further included. The sealing assembly includes a second sealing ring, and the second sealing ring is fixedly disposed on a side wall of the second positioning ring close to the mounting ring.

[0036] The working principle and beneficial effects of the present utility model are as follows:

[0037] In the utility model, through the setting of the fixing mechanism, the operator extends the installation ring into the through hole, and then the operator installs the first positioning ring in the positioning groove through threaded cooperation, and at the same time the operator continues to rotate the first positioning ring, so as to facilitate the second positioning ring to move, so as to facilitate the fixing of the installation ring through the contact between the second positioning ring and the fixing ring and the side wall of the power cabinet, and then the operator passes the cable through the installation ring, so as to facilitate the sealing between the cable and the installation ring through the first sealing ring, so as to achieve waterproof treatment between the cable and the installation ring; in the utility model, through the setting of the sealing assembly, the sealing between the second positioning ring and the power cabinet can be achieved through the second sealing ring in the process of the second positioning ring contacting the outer wall of the power cabinet, and then the sealing between the installation ring and the power cabinet is achieved, so as to prevent moisture in the external environment from entering the power cabinet; in the utility model, through the setting of the clamping mechanism, the operator can drive the installation ring to move in the process of rotating the first positioning ring, so that the inner wall of the power cabinet squeezes the second conduction block, and then drives the second conduction block to move, and the movement of the second conduction block can drive the first conduction block to adjust the angle around the clamping column, and then through the second conduction The angle change of the guide block drives the clamping block to move and clamp the cable, thereby preventing the cable from moving due to external force and escaping from the power cabinet; in the utility model, through the setting of the limit mechanism, the operator toggles the driving block to make the limit column rotate, and then controls the limit block to move around the limit column, so that the limit block extends into the limit groove, and then the operator controls the first positioning ring to rotate, when the first positioning ring and the second positioning ring move to the appropriate position, the operator releases the driving block, so that the limit block is reset under the action of the torsion spring, and then the limit block extends into the limit passage. The first locating ring is limited in the groove by the cooperation of the limiting block and the side wall of the limiting groove, thereby preventing the first locating ring from loosening or falling off in the locating groove; in the utility model, through the arrangement of the mounting hole, the mounting ring, the first sealing ring, the fixing mechanism and the clamping mechanism, it is convenient to realize the sealing between the cable and the mounting ring through the first sealing ring, and at the same time, the sealing between the sealing ring and the power cabinet is realized through the second sealing ring, and at the same time, the cable can be fixed in the mounting ring through the clamping mechanism, thereby solving the problem in the prior art that the cable is easily affected by external force and falls out of the power cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] Figure 1 It is a schematic diagram of the structure of the utility model;

[0040] Figure 2 This is a schematic diagram of the cross-sectional structure of the installation ring of the utility model;

[0041] Figure 3 Schematic cross-sectional view of the first positioning ring of the present utility model;

[0042] Figure 4 Schematic structural view of the present utility model in the installed state.

[0043] In the figure: 1. mounting ring; 2. first sealing ring; 3. fixing ring; 4. first positioning ring; 5. second positioning ring; 6. clamping column; 7. first conduction block; 8. second conduction block; 9. clamping block; 10. limiting column; 11. limiting block; 12. driving block; 13. second torsion spring; 14. limiting through groove; 15. positioning groove. Specific embodiments

[0044] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0045] As Figures 1 to 4 shown, this embodiment proposes a waterproof structure for cable through-wall installation, which is applied to the through-wall installation of cables in a power cabinet, and includes a mounting hole, a mounting ring 1, a first sealing ring 2, a fixing mechanism, and a clamping mechanism. The mounting hole is penetrated and arranged on the side wall of the power cabinet. The mounting ring 1 is slidably arranged in the mounting hole. A plurality of first sealing rings 2 are arranged, and the plurality of first sealing rings 2 are fixedly arranged on the inner wall of the mounting ring 1. The fixing mechanism is arranged on the mounting ring 1 and is used for installing and fixing between the mounting ring 1 and the power cabinet. The clamping mechanism is arranged in the mounting ring 1 and is used for clamping and fixing between the cable and the mounting ring 1.

[0046] The above-mentioned fixing mechanism includes a fixing ring 3, a positioning groove 15, a first positioning ring 4, a second positioning ring 5 and a limiting mechanism. The fixing ring 3 is fixedly arranged on the mounting ring 1. The positioning groove 15 is arranged in an annular shape. The positioning groove 15 is arranged at the end of the mounting ring 1 away from the fixing ring 3. The side wall of the positioning groove 15 is provided with an external thread, and the inner wall of the first positioning ring 4 is provided with an internal thread. The first positioning ring 4 is arranged on the mounting ring 1 through threaded cooperation. The second positioning ring 5 is fixedly arranged on the first positioning ring 4. The limiting mechanism is arranged on the side wall of the first positioning ring 4, and is used to limit the rotation angle of the first positioning ring 4. The limiting mechanism includes It includes a limit groove, a limit column 10, a limit block 11, a driving block 12, a second torsion spring 13 and a limit through groove 14. The limit groove is arranged on the side wall of the first positioning ring 4, the limit column 10 is rotatably arranged in the limit groove, the limit block 11 is fixedly arranged on the limit column 10, the driving block 12 is fixedly arranged on the limit column 10, and one end of the driving block 12 away from the limit column 10 extends out of the limit groove, the second torsion spring 13 is sleeved on the limit column 10, and the two ends of the second torsion spring 13 are respectively connected to the limit block 11 and the side wall of the limit groove, and the limit through groove 14 is arranged in plurality, and the plurality of limit through grooves 14 are arranged on the side wall of the positioning groove 15.

[0047] Specifically, the operator toggles the driving block 12 to rotate the limit column 10, and then controls the limit block 11 to move around the limit column 10, so that the limit block 11 extends into the limit groove, and at the same time the operator extends the installation ring 1 into the through hole, and then the operator installs the first positioning ring 4 in the positioning groove 15 through threaded cooperation, and at the same time the operator continues to rotate the first positioning ring 4, so as to facilitate the relative movement of the second positioning ring 5 and the fixing ring 3, so as to facilitate the contact between the second positioning ring 5 and the fixing ring 3 and the side wall of the power cabinet to achieve the installation. After the mounting ring 1 is fixed, the operator passes the cable through the mounting ring 1, thereby facilitating the sealing between the cable and the mounting ring 1 through the first sealing ring 2, thereby achieving waterproof treatment between the cable and the mounting ring 1, and then the operator loosens the driving block 12, so that the limit block 11 is reset under the action of the torsion spring, and then the limit block 11 is extended into the limit groove 14, and then the first positioning ring 4 is limited by the cooperation between the limit block 11 and the side wall of the limit groove 14, thereby preventing the first positioning ring 4 from loosening or falling off in the positioning groove 15.

[0048] As described above, the clamping mechanism includes a clamping groove, a clamping through-hole, clamping columns 6, a first conduction block 7, a second conduction block 8, and a clamping block 9. A plurality of clamping grooves are provided, and the plurality of clamping grooves are formed on the side wall of the mounting ring 1. The clamping through-hole is formed at the bottom of the clamping groove. Two clamping columns 6 are rotatably arranged in the clamping through-hole. The first conduction block 7 is fixedly arranged on the clamping column 6. The second conduction block 8 is arranged on the side of the mounting ring 1 away from the clamping groove. The first conduction block 7 is hinged to the second conduction block 8. The clamping block 9 is arranged in the clamping groove, and the clamping block 9 is hinged to the first conduction block 7. A first torsion spring is further included. The first torsion spring is sleeved on the clamping column 6, and two ends of the first torsion spring are respectively fixedly connected to the clamping column 6 and the side wall of the clamping through-hole.

[0049] Specifically, during the process of the operator rotating the first positioning ring 4, the fixed ring 3 and the second positioning ring 5 can be driven to move relatively. During this process, the inner wall of the power cabinet can squeeze the second conduction block 8, thereby driving the second conduction block 8 to move. The movement of the second conduction block 8 can drive the first conduction block 7 to adjust the angle around the clamping column 6, and then drive the clamping block 9 to move through the angle change of the second conduction block 8 to clamp the cable, so as to prevent the cable from moving due to external forces and falling out of the power cabinet.

[0050] As described above, a sealing assembly is further included. The sealing assembly includes a second sealing ring. The second sealing ring is fixedly arranged on the side wall of the second positioning ring 5 close to the mounting ring 1.

[0051] Specifically, during the contact between the second positioning ring 5 and the outer wall of the power cabinet, the second positioning ring 5 and the power cabinet can be sealed through the second sealing ring, and then the mounting ring 1 and the power cabinet can be sealed, so as to prevent moisture in the external environment from entering the power cabinet.

[0052] In this embodiment, when in use, the operator extends the installation ring 1 into the through hole, the operator turns the driving block 12 to rotate the limit column 10, and then controls the limit block 11 to move around the limit column 10, so that the limit block 11 extends into the limit groove, and at the same time the operator installs the first positioning ring 4 in the positioning groove 15 through threaded cooperation, and at the same time the operator continues to rotate the first positioning ring 4, so as to facilitate the relative movement of the second positioning ring 5 and the fixing ring 3, so that the side wall of the power cabinet contacts the positioning ring and the second conduction block 8 respectively, in this process, the inner wall of the power cabinet can squeeze the second conduction block 8, thereby driving the second conduction block 8 to move, the movement of the second conduction block 8 can drive the first conduction block 7 to adjust the angle around the clamping column 6, and then drive the clamping block 9 to move and clamp the cable through the angle change of the second conduction block 8, thereby preventing the cable from moving due to external force and falling out of the power cabinet. After the cable is clamped, the second conducting block 8 and the second positioning ring 5 can be respectively contacted with the side wall of the power cabinet to fix the mounting ring 1. Then the operator passes the cable through the mounting ring 1, so as to facilitate the sealing between the cable and the mounting ring 1 through the first sealing ring 2, thereby realizing waterproof treatment between the cable and the mounting ring 1. Then the operator loosens the driving block 12, so that the limit block 11 is reset under the action of the torsion spring, and then the limit block 11 is extended into the limit groove 14, and then the first positioning ring 4 is limited by the cooperation between the limit block 11 and the side wall of the limit groove 14, thereby preventing the first positioning ring 4 from loosening or falling off in the positioning groove 15. At the same time, in the process of the second positioning ring 5 contacting the outer wall of the power cabinet, the second sealing ring can be used to achieve the sealing between the second positioning ring 5 and the power cabinet, thereby achieving the sealing between the mounting ring 1 and the power cabinet, thereby preventing moisture in the external environment from entering the power cabinet.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable wall installation waterproof structure, used for the wall installation of cables in power cabinets, characterized in that: include: A mounting hole, the mounting hole being arranged through the side wall of the power cabinet; A mounting ring (1), the mounting ring (1) being slidably disposed in the mounting hole; A first sealing ring (2), wherein the first sealing ring (2) is provided in plurality, and the plurality of first sealing rings (2) are fixedly arranged on the inner wall of the mounting ring (1); A fixing mechanism, the fixing mechanism being arranged on the mounting ring (1) and being used for installing and fixing the mounting ring (1) and the power cabinet; A clamping mechanism, the clamping mechanism is arranged in the mounting ring (1) and is used to clamp and fix the cable and the mounting ring (1).

2. A cable wall-mounted waterproof structure according to claim 1, characterized in that: The fixing mechanism comprises: A fixing ring (3), the fixing ring (3) being fixedly arranged on the mounting ring (1); A positioning groove (15), the positioning groove (15) being arranged in an annular shape, and the positioning groove (15) being arranged at an end of the mounting ring (1) away from the fixing ring (3); Wherein, the side wall of the positioning groove (15) is provided with an external thread; A first positioning ring (4), wherein an inner wall of the first positioning ring (4) is provided with an internal thread, and the first positioning ring (4) is arranged on the mounting ring (1) by means of threaded fitting; a second positioning ring (5), the second positioning ring (5) being fixedly arranged on the first positioning ring (4); A limiting mechanism, wherein the limiting mechanism is arranged on the side wall of the first positioning ring (4) and is used to limit the rotation angle of the first positioning ring (4).

3. A cable wall-mounted waterproof structure according to claim 2, characterized in that: The clamping mechanism comprises: A clamping groove, wherein a plurality of the clamping grooves are provided, and the plurality of the clamping grooves are opened on the side wall of the mounting ring (1); A clamping through hole, wherein the clamping through hole is provided at the bottom of the clamping groove; A clamping column (6), two clamping columns (6) being rotatably arranged in the clamping through hole; A first conducting block (7), the first conducting block (7) being fixedly arranged on the clamping column (6); a second conduction block (8), the second conduction block (8) being arranged on a side of the mounting ring (1) away from the clamping groove, the first conduction block (7) being hingedly connected to the second conduction block (8); A clamping block (9), wherein the clamping block (9) is arranged in the clamping groove, and the clamping block (9) is hingedly connected to the first conducting block (7).

4. A cable wall-mounted waterproof structure according to claim 3, characterized in that: It also includes a first torsion spring, which is sleeved on the clamping column (6), and two ends of the first torsion spring are respectively fixedly connected to the clamping column (6) and the side wall of the clamping through hole.

5. A cable wall-mounted waterproof structure according to claim 4, characterized in that: The limiting mechanism comprises: A limiting groove, the limiting groove being formed on the side wall of the first positioning ring (4); A limiting post (10), the limiting post (10) being rotatably disposed in the limiting groove; A limit block (11), the limit block (11) being fixedly arranged on the limit column (10); A driving block (12), the driving block (12) being fixedly disposed on the limiting column (10), and an end of the driving block (12) away from the limiting column (10) extending out of the limiting groove; a second torsion spring (13), wherein the second torsion spring (13) is sleeved on the limiting column (10), and two ends of the second torsion spring (13) are respectively connected to the limiting block (11) and the side wall of the limiting groove; A limiting through groove (14), wherein the limiting through groove (14) is provided in plurality, and the plurality of limiting through grooves (14) are opened on the side wall of the positioning groove (15).

6. A cable wall-mounted waterproof structure according to claim 5, characterized in that: It also includes a sealing assembly, the sealing assembly including a second sealing ring, the second sealing ring being fixedly arranged on a side wall of the second positioning ring (5) close to the mounting ring (1).

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