CN112242677A

CN112242677A - Through hole plugging device for cable wire pipe special for power distribution cabinet

Info

Publication number: CN112242677A
Application number: CN201910655545.9A
Authority: CN
Inventors: 柯军明
Original assignee: Zhejiang Yuzheng Power Technology Co ltd
Current assignee: Zhejiang Yuzheng Power Technology Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2021-01-19

Abstract

The invention provides a through hole plugging device for a cable spool special for a power distribution cabinet, which comprises an elastic sealing sleeve and a connecting piece, wherein the elastic sealing sleeve is provided with a main channel in the axial direction, the side edge of the elastic sealing sleeve is provided with an opening in the height direction, the connecting piece is arranged at the opening of the elastic sealing sleeve, the elastic sealing sleeve comprises a rear sleeve head, a threaded sealing ring, a rear pressing ring, a front pressing ring and a connecting plate which are connected with each other, the connecting plate is arranged at the opening in the length direction of the elastic sealing sleeve, the rear sleeve head is arranged at the rear end side of the threaded sealing ring, the front pressing ring and the rear pressing ring are arranged at the front end side of. This scheme is through the integral type design of elastic sealing cover, only just can carry out the shutoff during the equipment and handle externally, and is sealed effectual, can plug the through-hole mouth of wearing the cable spool on the switch board effectively, has simple structure moreover, simple to operate does not need the technical characterstic of outage operation.

Description

Through hole plugging device for cable wire pipe special for power distribution cabinet

Technical Field

The invention relates to the field of cable application, in particular to a through hole plugging device for a cable wire pipe special for a power distribution cabinet.

Background

Along with the continuous deepening of city power grid transformation, a large amount of switch boards are applied to power lines and each distribution station district. In order to meet the requirements of standardization, miniaturization and outdoor type of low-voltage distribution devices, the power distribution cabinet integrates power distribution, metering, protection and capacitance reactive compensation. The special cable of switch board in the installation, need pass through barriers such as various walls, for avoid the harmful effects that the hole produced the wall and mouse, birds from the cable hole of wearing of switch board creeps into the switch board and cause destruction, more and more electric power office checks and accepts and requires shutoff entrance hole as far as possible, has worn the cable business turn over switch board, wears the sheath cushion, makes the shutoff.

The original plugging mode in the market is mud paste plugging, but the plugging effect is poor because the plugging is easy to crack and drop. At present, a power distribution cabinet plugging device is formed by splicing a middle column and an annular block, the middle column wraps cables inside the power distribution cabinet during plugging, the annular block is connected with the middle column outside the power distribution cabinet, and the plugging operation is performed by plugging the inner surface and the outer surface together and is carried out under the condition of power failure. Therefore, in the prior art, the power-off operation is still required when the plugging device of the power distribution cabinet is installed; the sealing performance of the split design is not ideal enough, and the fitting degree is influenced; the split occluder also adds operational complexity during installation.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide the through hole plugging device for the cable wire tube special for the power distribution cabinet, which is integrally designed, has good sealing effect, can effectively plug the through hole of the power distribution cabinet through the cable wire tube, and has the technical characteristics of simple structure, convenience in installation and no need of power-off operation.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

Through-hole plugging device of switch board private cable spool, including elasticity seal cover and connecting piece, the main entrance has been seted up at the axial direction to the elasticity seal cover, and its side is equipped with the opening along the direction of height, the connecting piece is arranged in the opening part of elasticity seal cover, the elasticity seal cover is including back pullover, threaded seal, back clamping ring, preceding clamping ring and the connecting plate that connects each other, the connecting plate is followed its opening part is arranged in to elasticity seal cover length direction, back pullover is arranged in threaded seal's rear end side, preceding clamping ring is arranged in with back clamping ring threaded seal's front end side, back pullover threaded seal the back clamping ring preceding clamping ring with connecting plate formula structure as an organic whole.

Further, the diameter of the main channel of the through hole plugging device is gradually increased along the direction from the rear sleeve head to the front pressure ring.

Furthermore, the diameter of one end, far away from the threaded sealing ring, of the rear sleeve head is smaller than the diameter of the rear sleeve head, close to the threaded sealing ring, the diameter of the rear sleeve head decreases progressively or changes progressively along the height direction, the outer diameter of the first end is smaller than that of the second end, and the second end of the rear sleeve head is fixedly connected with the first end of the threaded sealing ring.

Further, preceding clamping ring is kept away from threaded seal's one end diameter is greater than preceding clamping ring and is close to threaded seal diameter, the periphery avris of preceding clamping ring is equipped with rather than coaxial ring groove, draw-in groove and switch board thickness adaptation.

Furthermore, the connecting plate is provided with a plurality of rivet holes, the connecting piece comprises rivets, and the rivets penetrate through the rivet holes.

Furthermore, the number of the riveting holes is 7, and the number of the riveting holes is 7.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme application integral type design, with the mouth of pipe department of elastic sealing cover concatenation at cable protection pipe, rethread bolt locking pushes away the hole with the plugging device again, can plug the through-hole mouth of wearing the cable spool on the switch board effectively, realizes from outer inside shutoff, because need not contact the switch board the inside, so do not need the outage just can operate, reduced the installation complexity.

(2) This scheme provides integral type elastic sealing cover, and the cabinet body laminating degree is high, and is sealed effectual, can shutoff cable protection tube's the mouth of pipe effectively.

(3) This scheme simple structure, production is easy, and the installation is also very convenient.

Drawings

Fig. 1 is a schematic structural diagram of a through hole stopper for a cable conduit dedicated to a power distribution cabinet according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a through hole stopper of a cable conduit for a power distribution cabinet according to an embodiment of the present invention;

fig. 3 is a schematic view of a rivet structure of the through hole plugging device for the cable conduit of the distribution cabinet according to an embodiment of the invention.

The reference numbers in the figures illustrate:

the device comprises an elastic sealing sleeve 1, a rear sleeve head 2, a front press ring 3, a main channel 4, a connecting plate 5, a clamping groove 6, a thread sealing ring 7, a rear press ring 8, a rivet fastener 9 and a rivet fastener hole 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Exemplary embodiments according to the present invention will be described below with reference to the accompanying drawings.

Referring to fig. 1-3, the through hole plugging device for the cable conduit special for the power distribution cabinet comprises an elastic sealing sleeve 1 and a connecting piece, wherein the elastic sealing sleeve 1 is provided with a main channel 4 in the axial direction, the side edge of the elastic sealing sleeve is provided with an opening in the height direction, the connecting piece is arranged at the opening of the elastic sealing sleeve 1, the elastic sealing sleeve 1 comprises a rear sleeve head 2, a threaded sealing ring 7, a rear pressing ring 8, a front pressing ring 3 and a connecting plate 5 which are connected with each other, the connecting plate 5 is arranged at the opening of the elastic sealing sleeve 1 in the length direction, the rear sleeve head 2 is arranged at the rear end side of the threaded sealing ring 7, the front pressing ring 3 is arranged at the front end side of the threaded sealing ring 7, the rear sleeve.

The diameter of a main channel 4 of the through hole plugging device is gradually increased along the direction from the rear sleeve head 2 to the front pressure ring 3, and the rear sleeve head 2 is used for protecting a cable wire pipe outside the power distribution cabinet.

Specifically, the diameter of one end, away from the threaded seal ring 7, of the rear sleeve head 2 is smaller than the diameter of the end, close to the threaded seal ring 7, of the rear sleeve head 2, the diameter of the rear sleeve head 2 is gradually decreased or gradually changed along with the height direction, the outer diameter of the first end is smaller than that of the second end, and the second end of the rear sleeve head 2 is fixedly connected with the first end of the threaded seal ring 7.

Similarly, the diameter of one end of the front pressing ring 3, which is far away from the threaded sealing ring 7, is larger than the diameter of the front pressing ring 3, which is close to the threaded sealing ring 7, the outer peripheral side of the front pressing ring 3 is provided with an annular clamping groove 6 which is coaxial with the front pressing ring, and the size of the clamping groove 6 is matched with the thickness of the power distribution cabinet.

In an embodiment the connection comprises a rivet 9. The height direction setting of rivet 9 is in the outer wall of elastic sealing cover 1, and connecting plate 5 is equipped with a plurality of rivet hole 10, and rivet 9 matches the shape and the size of rivet hole 10, and rivet 9 passes rivet hole 10 and connects elastic sealing cover 1. The elastic sealing sleeve 1 is made of elastic materials and can be elastically expanded and restored to the original shape within a certain range.

In the embodiment, the connecting plate 5 is provided with 2 pieces, and the connecting plate 5 is locked by a rivet 9 and a rivet hole 10. In one embodiment of the present invention, there are 7

rivet holes

10 and 7 rivets 9.

In an embodiment of the present invention, the integral elastic sealing sleeve 1 is integrally formed and made of rubber. The shape of the rivet 9 is big end and small end, and the rivet 9 is made of plastic.

The thread sealing ring 1 is integrally formed by elastic materials. During assembly, the cable tube is connected and extends out of the power distribution cabinet, the elastic sealing sleeve 1 is firstly pulled out of the power distribution cabinet, then sleeved on the cable tube and completely wrapped on the cable tube, and the connecting plate 5 of the elastic sealing sleeve 1 is locked through the rivet 9; then, the front pressing ring 3 is aligned with the corresponding pipe orifice and pushed into the pipeline, so that the inner edge of the hole is just clamped at the clamping groove 6. Because elastic sealing sleeve 1 is prepared by elastic material, can ensure that even the diameter ratio of preceding clamping ring 3 is big than the switch board through-hole, also can push preceding clamping ring 3 into the switch board through-hole. After the installation, the elastic sealing sleeve 1 can be bent along with the bending of the cable conduit outside, and because the power distribution cabinet door does not need to be opened in the assembling process to operate the internal cable protection pipe, the plugging work can be completed only outside, so that the power distribution cabinet is not required to be powered off during installation.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.

Claims

1. Through-hole plugging device of switch board private cable spool, its characterized in that: comprises an elastic sealing sleeve (1) and a connecting piece, wherein the elastic sealing sleeve (1) is provided with a main channel (4) in the axial direction, the side edge of the elastic sealing sleeve is provided with an opening along the height direction, the connecting piece is arranged at the opening of the elastic sealing sleeve (1), the elastic sealing sleeve (1) comprises a rear sleeve head (2), a thread sealing ring (7), a rear pressing ring (8), a front pressing ring (3) and a connecting plate (5) which are connected with each other, the connecting plate (5) is arranged at the opening of the elastic sealing sleeve (1) along the length direction of the elastic sealing sleeve, the rear sleeve head (2) is arranged at the rear end side of the thread sealing ring (7), the front press ring (3) and the rear press ring (8) are arranged on the front end side of the threaded seal ring (7), the rear sleeve head (2), the threaded sealing ring (7), the rear pressing ring (8), the front pressing ring (3) and the connecting plate (5) are of an integrated structure.

2. The through hole plugging device for the cable conduit special for the power distribution cabinet according to claim 1, wherein: the diameter of a main channel (4) of the through hole plugging device (1) is gradually increased along the direction from the rear sleeve head (2) to the front pressing ring (3).

3. The through hole plugging device for the cable conduit special for the power distribution cabinet according to claim 2, wherein: the diameter of one end, far away from the threaded sealing ring (7), of the rear sleeve head (2) is smaller than that of the rear sleeve head (2) close to the threaded sealing ring (7), and the diameter of the rear sleeve head (2) is gradually changed along with the height direction.

4. The through hole plugging device for the cable conduit special for the power distribution cabinet according to claim 3, wherein: the second end of the rear sleeve head (2) is fixedly connected with the first end of the threaded sealing ring (7), and the outer diameter of the first end of the rear sleeve head (2) is smaller than that of the second end.

5. The through hole plugging device for the cable conduit special for the power distribution cabinet according to claim 1, wherein: the diameter of one end of the front pressing ring (3) far away from the threaded sealing ring (7) is larger than that of the front pressing ring (3) close to the threaded sealing ring (7).

6. The through hole plugging device for the cable conduit special for the power distribution cabinet according to claim 1, wherein an annular clamping groove (6) coaxial with the front pressing ring (3) is formed in the outer peripheral side of the front pressing ring, and the clamping groove (6) is matched with the thickness of the power distribution cabinet.

7. The through hole plugging device for the cable conduit special for the power distribution cabinet according to claim 7, wherein: the connecting plate (5) is provided with a plurality of rivet holes (10), the connecting piece comprises rivets (9), and the rivets (9) penetrate through the rivet holes (10).

8. The through hole plugging device for the cable conduit special for the power distribution cabinet according to any one of claims 1 to 7, wherein: the number of the riveting holes (10) is 7, and the number of the riveting buttons (9) is 7.