CN213341150U

CN213341150U - Waterproof power distribution cabinet

Info

Publication number: CN213341150U
Application number: CN202021807460.2U
Authority: CN
Inventors: 陈俊
Original assignee: Haikou Jiayuantai Electrical Equipment Co ltd
Current assignee: Haikou Jiayuantai Electrical Equipment Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-06-01
Anticipated expiration: 2030-08-26

Abstract

The utility model provides a waterproof power distribution cabinet, which comprises a cabinet body with an opening at the front side and a cabinet door hinged at the edge of the opening side of the cabinet body, wherein the cabinet body comprises a back plate, a side plate, a top plate and a bottom plate; the back plate is provided with a plurality of threading holes, and one end of each threading hole, which is positioned at the inner side of the back plate, is provided with a threading sealing device, wherein the threading sealing device comprises a threading sleeve, an elastic sealing ring and a fastening cover; the threading sleeve is coaxially arranged in the threading hole in a penetrating way, and the connecting end of the threading sleeve is fixedly connected with the inner circumferential surface of the threading hole; the elastic sealing ring coaxially penetrates through the threading sleeve, and the axial length of the elastic sealing ring is greater than that of the threading sleeve; the fastening cover comprises an annular rotary connecting cylinder and a cover plate, a central through hole is formed in the center of the cover plate, and internal threads are formed in the inner circumferential surface of the rotary connecting cylinder. The utility model discloses a seamless laminating between cable and the elastic sealing ring can effectively prevent that the rainwater is internal by through wires hole entering cabinet.

Description

Waterproof power distribution cabinet

Technical Field

The utility model relates to a switch board especially relates to a waterproof switch board.

Background

The switch board is a controlgear who is used for controlling opening or closing of various consumer, the inside various switches that are equipped with of switch board, control and metering equipment such as ammeter and outage ware, as a protection electrical equipment's device, the switch board need adapt to various complicated environment, there are some switch boards to set up outdoors, if meet great rainwater, traditional switch board includes the open cabinet body of a front side and articulates the cabinet door at cabinet body uncovered department one side border, be equipped with the through wires hole at the cabinet body, the electric wire penetrates behind the through wires hole, its cross-under department often leaves the space, the rainwater that meets heavy rain gets into inside the switch board through the through wires hole easily or the department of meeting of cabinet door and cabinet body, cause the inside electrical apparatus short circuit of switch board, thereby bring great loss.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a waterproof switch board to solve the current problem that is used for outdoor switch board existence because the inside rainwater of easily entering and the easy short circuit of electrical apparatus that leads to.

The utility model discloses a realize like this:

a waterproof power distribution cabinet comprises a cabinet body with an opening at the front side and a cabinet door hinged to the edge of one side of the opening of the cabinet body, wherein the cabinet body comprises a back plate, side plates, a top plate and a bottom plate;

the back plate is provided with a plurality of threading holes for threading cables, and one end of each threading hole, which is positioned on the inner side of the back plate, is provided with a threading sealing device, wherein the threading sealing device comprises a threading sleeve, an elastic sealing ring and a fastening cover; the cabinet body is characterized in that one axial end of the threading sleeve is a connecting end, the other axial end of the threading sleeve is a free end, the threading sleeve is coaxially arranged in the threading hole in a penetrating manner, the connecting end of the threading sleeve is fixedly connected with the inner circumferential surface of the threading hole, the free end of the threading sleeve extends into the cabinet body, and the outer circumferential surface of the free end of the threading sleeve is provided with an external thread; the elastic sealing ring coaxially penetrates through the threading sleeve, and the axial length of the elastic sealing ring is greater than that of the threading sleeve; the fastening cover comprises an annular rotary connecting cylinder and a cover plate vertically arranged at one axial end of the rotary connecting cylinder, a central through hole for penetrating a cable is formed in the center of the cover plate, and internal threads matched with the penetrating sleeve are formed in the inner circumferential surface of the rotary connecting cylinder.

The outer circumferential surface of the elastic sealing ring is attached to the inner circumferential surface of the threading sleeve, and one end of the elastic sealing ring, corresponding to the free end of the threading sleeve, protrudes out of the free end of the threading sleeve.

The inner circumferential surface of the threading sleeve is a conical surface, and the inner diameter of the free end of the threading sleeve is larger than that of the other end opposite to the free end of the threading sleeve.

The aperture of the central through hole of the fastening cover is larger than the inner diameter of the elastic sealing ring, and the aperture of the central through hole is smaller than the outer diameter of one end, corresponding to the free end of the threading sleeve, of the elastic sealing ring.

The open border department in front side of the cabinet body sets up and is used for the butt the door frame of cabinet door.

The door frame is provided with a sealing strip for sealing connection with the cabinet door.

And one side of the door frame, which faces the cabinet door, is concavely provided with a U-shaped groove for installing the sealing strip.

The sealing strip is a hollow sealing strip, the outside of one side of the cabinet door, which is far away from the sealing strip, is fixedly provided with an inserting convex strip, and the bottom of the U-shaped groove is provided with a strip-shaped through hole for penetrating the inserting convex strip.

The vertical surface of the door frame, which is abutted against the cabinet door, is positioned at the rear side of the vertical surface of the open side of the cabinet body.

An exhaust fan is arranged above one side plate of the cabinet body, and an air inlet filtering device is arranged below the other side plate of the cabinet body.

The utility model has the advantages that:

one, the inboard one end of backplate that is located in every through wires hole sets up threading sealing device, threading sealing device includes the threading sleeve, elastic sealing ring and fastening lid, the cable is worn to establish to the external outside of cabinet through elastic sealing ring by the internal, the cable is worn to locate behind the elastic sealing ring, screw up behind the threading sleeve with the fastening lid, elastic sealing ring is fastened the lid axial and is compressed tightly to the inboard of backplate like this, under the effect of elasticity, the cable is hugged closely to the elastic sealing ring, seamless laminating between cable and the elastic sealing ring has been realized, can effectively prevent the rainwater and get into the cabinet internally by the through wires hole.

Second, set up on the door frame be used for with cabinet door sealing connection's sealing strip, close the cabinet door back like this, can guarantee the sealed laminating between cabinet door and the cabinet body, can prevent that the rainwater from getting into the cabinet internally by the department of meeting of cabinet door and the cabinet body, played further waterproof effect.

Drawings

FIG. 1 is an external view of the present invention;

FIG. 2 is a rear view of FIG. 1;

FIG. 3 is a schematic view of the structure of the thread sealing device;

FIG. 4 is a schematic structural view of the sealing strip of the present invention;

fig. 5 is a left side view of fig. 1.

In the figure: 1. a cabinet body; 2. a cabinet door; 3. threading holes; 5. a door frame; 6. a sealing strip; 7. an exhaust fan; 8. an intake air filtering device; 11. a back plate; 12. a side plate; 13. a top plate; 14. a base plate; 41. a threading sleeve; 42. an elastic sealing ring; 43. a fastening cover; 431. a screwing cylinder; 432. a cover plate; 433. a central through hole; 51. a U-shaped groove; 52. an L-shaped slat; 61. inserting the convex strips.

Detailed Description

The present invention is further illustrated by the following examples, which are given by way of illustration only and are not intended to limit the scope of the present invention in any way.

As shown in fig. 1 and 2, the utility model discloses a waterproof switch board, including the open cabinet body of a front side 1 with articulated the cabinet door 2 that sets up at the border of the open one side of the cabinet body 1, the cabinet body 1 includes backplate 11, curb plate 12, roof 13 and bottom plate 14, roof 13, bottom plate 14 are located the top and the bottom of the cabinet body 1 respectively, the quantity of curb plate 12 is two, be located the left and right sides of the cabinet body 1 respectively, backplate 11 is located the rear side of the cabinet body 1, the cabinet body 1 includes backplate 11, curb plate 12, roof 13 and bottom plate 14 surround and constitute the open cuboid box column structure of a front side.

As shown in fig. 2 and 3, the back plate 11 is provided with a plurality of threading holes 3 for threading cables, in this embodiment, the threading holes 3 are located at the lower part of the back plate 11, the number of the threading holes is 4, and the distance between the centers of two adjacent threading holes is 100 mm. A threading sealing device is arranged at one end of each threading hole 3 positioned at the inner side of the back plate 11. The threading sealing device comprises a threading sleeve 41, an elastic sealing ring 42 and a fastening cover 43, wherein the elastic sealing ring 42 is a rubber sealing ring or a silica gel sealing ring. The axial one end of threading sleeve 41 is the link, and the axial other end of threading sleeve 41 is the free end, and in threading hole 3 was worn to locate by the coaxial threading sleeve 41, circumferential fixed connection in threading sleeve 41's link and the threading hole 3, the terminal surface of threading sleeve 41's link and the outside wall parallel and level of the cabinet body 1. The free end of the threading sleeve 41 extends into the cabinet 1, that is, the free end of the threading sleeve 41 protrudes out of the inner wall surface of the cabinet 1, and the outer circumferential surface of the free end of the threading sleeve 41 is provided with an external thread. The elastic sealing ring 42 is coaxially inserted into the threading sleeve 41, and the axial length of the elastic sealing ring 42 is greater than that of the threading sleeve 41. The outer circumferential surface of the elastic sealing ring 42 is attached to the inner circumferential surface of the threading sleeve 41, one end of the elastic sealing ring 42 corresponding to the free end of the threading sleeve 41 protrudes out of the free end of the threading sleeve 41, and the other end of the elastic sealing ring 42 is flush with the connecting end of the threading sleeve 41. The inner circumferential surface of the threading sleeve 41 is a conical surface, the inner diameter of the free end of the threading sleeve 41 is larger than the inner diameter of the other end opposite to the free end, that is, the inner diameter of the free end of the threading sleeve 41 is larger than the inner diameter of the connection end, so that the inner circumferential surface of the threading sleeve 41 can generate a horizontal pressure towards the fastening cover 43 and a vertical downward pressure on the elastic sealing ring 42, meanwhile, the outer circumferential surface of the elastic sealing ring 42 is a conical surface attached to the inner circumferential surface of the threading sleeve 41, and the inner circumferential surface of the elastic sealing ring 42 is a cylindrical surface. Therefore, the elastic sealing ring can be tightly pressed on the cable, no gap is left between the threading hole and the cable, and rainwater is prevented from overflowing into the cabinet body 1 from the threading hole. The fastening cover 43 includes an annular screwing cylinder 431 and a cover plate 432 vertically disposed at one axial end of the screwing cylinder 431, a central through hole 433 for threading the cable is disposed at the center of the cover plate 432, and an internal thread for matching with the threading sleeve 41 is disposed at the inner circumferential surface of the screwing cylinder 431. The aperture of the central through hole 433 of the fastening cover 43 is greater than the inner diameter of the elastic sealing ring 42, and the aperture of the central through hole 433 is less than the outer diameter of the end of the elastic sealing ring 42 corresponding to the free end of the threading sleeve 41, so that the cover plate 432 of the fastening cover 43 can press and support the elastic sealing ring 42, and the elastic sealing ring 42 can tightly hold the cable. The outer diameter of the cover plate 432 is larger than that of the screwing cylinder 431, and a plurality of grooves are formed in the outer circumference of the cover plate 432, so that an operator can conveniently grasp and screw the cover plate.

As shown in fig. 1 and 4, a door frame 5 for abutting against the cabinet door 2 is disposed at the edge of the front opening of the cabinet body 1. The door frame 5 is provided with a sealing strip 6 which is used for being connected with the cabinet door 2 in a sealing way. The side of the door frame 5 facing the cabinet door 2 is concavely provided with a U-shaped groove 51 for installing the sealing strip 6. The sealing strip 6 is a hollow sealing strip 6. In this embodiment, the cross section of u-shaped groove 51 perpendicular to the axial direction thereof is a square, and the cross section of bead 6 perpendicular to the axial direction thereof is a circular cross section. The external diameter of sealing strip 6 is greater than the length of side of U-shaped groove 51, and like this cabinet door 2 can be sufficient partial pressure to support sealing strip 6, has realized the sealed of cabinet door 2 with door frame 5. The outside of the side of the sealing strip 6 away from the cabinet door 2 is fixedly provided with an inserting convex strip 61, and the bottom of the U-shaped groove 51 is provided with a strip-shaped through hole for penetrating and connecting the inserting convex strip 61. Grafting sand grip 61 includes column connecting portion and joint portion, the one end and the sealing strip 6 fixed connection of column connecting portion, and the other end and the joint portion of column connecting portion are connected, and the column connecting portion are a cylinder structure, and the external diameter of column connecting portion slightly is less than the width of the bar through-hole of U-shaped groove 51, and the minimum dimension of joint portion is greater than the width of the bar through-hole of U-shaped groove 51, can avoid droing of sealing strip 6. The vertical surface of the door frame 5, on which the side abutting against the cabinet door 2 is located, is located at the rear side of the vertical surface on which the open side of the cabinet body 1 is located. The edge of the top plate 13 at the open side of the cabinet body is an L-shaped strip plate 52 bent towards the rear side of the cabinet body, and the L-shaped strip plate 52 is integrally connected with one side of the U-shaped groove 51 at the periphery of the door frame. As shown in fig. 1 and 5, an exhaust fan 7 is disposed above one side plate 12 of the cabinet 1, an intake filter 8 is disposed below the other side plate 12 of the cabinet 1, and the intake filter 8 includes an intake hole disposed on the side plate 12 and a filter screen disposed at the intake hole for filtering dust in air. The exhaust fan 7 and the intake filter device 8 are arranged diagonally, each element in the cabinet body is easy to generate a large amount of heat when in long-term operation, the exhaust fan 7 can suck external air into the cabinet body through the intake filter device 8 to absorb the heat generated by each element, and air flow carrying a large amount of heat is discharged out of the room through the exhaust fan 7. In addition, the exhaust fan is arranged above the cabinet body, and attracts airflow in the cabinet body when the exhaust fan operates, so that the pressure at the position is higher than the pressure outside the cabinet body, and rainwater can be prevented from splashing into the cabinet body through the position.

The above description in this specification is merely illustrative of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. A waterproof power distribution cabinet is characterized by comprising a cabinet body with an opening at the front side and a cabinet door hinged to the edge of one side of the opening of the cabinet body, wherein the cabinet body comprises a back plate, side plates, a top plate and a bottom plate;

2. The waterproof power distribution cabinet according to claim 1, wherein the outer circumferential surface of the elastic sealing ring is attached to the inner circumferential surface of the threading sleeve, and one end of the elastic sealing ring, corresponding to the free end of the threading sleeve, protrudes out of the free end of the threading sleeve.

3. The watertight power distribution cabinet according to claim 2, wherein the inner circumferential surface of the threading sleeve is a conical surface, and the inner diameter of the free end of the threading sleeve is larger than that of the other end opposite to the free end.

4. The watertight power distribution cabinet according to claim 1, wherein the aperture of the central through hole of the fastening cover is larger than the inner diameter of the elastic sealing ring, and the aperture of the central through hole is smaller than the outer diameter of the end of the elastic sealing ring corresponding to the free end of the threading sleeve.

5. The waterproof power distribution cabinet according to claim 1, wherein a door frame for abutting against the cabinet door is arranged at the edge of the front opening of the cabinet body.

6. The waterproof power distribution cabinet according to claim 5, wherein a sealing strip for sealing connection with the cabinet door is arranged on the door frame.

7. The waterproof power distribution cabinet according to claim 6, wherein a U-shaped groove for installing the sealing strip is concavely formed in one side of the door frame facing the cabinet door.

8. The waterproof power distribution cabinet of claim 7, wherein the sealing strips are hollow sealing strips, insertion convex strips are fixedly arranged on the outer sides of the sealing strips on the sides away from the cabinet door, and strip-shaped through holes for penetrating the insertion convex strips are formed in the bottoms of the U-shaped grooves.

9. The waterproof power distribution cabinet according to claim 5, wherein a vertical surface of the door frame, on which the side abutting against the cabinet door is located, is located at a rear side of a vertical surface on which an open side of the cabinet body is located.

10. The waterproof power distribution cabinet according to claim 1, wherein an exhaust fan is arranged above one side plate of the cabinet body, and an intake air filtering device is arranged below the other side plate of the cabinet body.