CN215343204U

CN215343204U - Sealing device for mineral insulated cable

Info

Publication number: CN215343204U
Application number: CN202120594379.9U
Authority: CN
Inventors: 杜健; 周庆南; 任鹏
Original assignee: China Construction Second Bureau Installation Engineering Co Ltd
Current assignee: China Construction Second Bureau Installation Engineering Co Ltd
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2021-12-28
Anticipated expiration: 2031-03-24

Abstract

The utility model relates to the technical field of cable application, and discloses a sealing device for a mineral insulated cable, which comprises a sealing connection assembly and a connector lug sealing assembly, wherein the connector lug sealing assembly comprises a through-wire pipe, lantern rings are uniformly distributed on the outer side of the through-wire pipe, the lantern rings are sleeved on the outer side surface of the through-wire pipe, one side of each lantern ring is fixedly connected with a connection block, two ends of the connector lug sealing assembly are respectively provided with a first expansion ring, a second expansion ring is glued inside the first expansion ring, a waterproof sealing ring is arranged inside the second expansion ring, the sealing connection assembly is arranged at the symmetrical center of the through-wire pipe, an internal thread connector is screwed at a thread connector after connection is completed, the internal thread connector is screwed so that the sealing rubber rings can be tightly attached to the outer ring of the thread connector, and then line bodies at two ends of the through-wire pipe are tightly clamped through the matching of the first expansion ring and the second expansion ring, thereby avoiding the loose effect at the cable interface.

Description

Sealing device for mineral insulated cable

Technical Field

The utility model relates to the technical field of cable application, in particular to a sealing device for a mineral insulated cable.

Background

A mineral insulated cable, a kind of cable which uses copper sheath to wrap the copper conductor core wire, and uses magnesium oxide powder as inorganic insulating material to isolate the conductor and the sheath, the outmost layer can select proper protective sheath according to the need, it is called MICC or MI cable, there is a similar cable which uses metal to replace copper sheath to wrap the core wire and insulating material, it is called mineral insulated metal sheath cable, in the using process of the mineral insulated cable, the cable length is often not enough to need to connect, or when using, the insulating sheath at some place is damaged to need to reconnect, it is not critical to guarantee the insulation sealing of the cable in the process of broken connection, at the same time, it also needs to guarantee the stability of the cable connection, the existing connection technology is generally to wrap the insulating tape on the outside after the copper core wire is wound at the broken position, thus it is easy to cause the cable to appear short circuit or connect unstably to cause to disconnect under the condition of knotting and winding, affecting the safety of electricity utilization.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a sealing device for mineral insulated cables that solves the problems mentioned in the background above

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a sealing device for mineral insulated cable, includes sealing connection subassembly and connector lug sealing assembly, connector lug sealing assembly includes the through-wire pipe, the outside evenly distributed of through-wire pipe has the lantern ring, the lantern ring cover is established at through-wire pipe outside surface, one side fixedly connected with connecting block of the lantern ring, connector lug sealing assembly's both ends all are provided with first expansion ring, the inside veneer of first expansion ring has the second expansion ring, the inside waterproof sealing circle that is provided with of second expansion ring, through-wire pipe symmetry center department is provided with sealing connection subassembly.

Preferably, sealing connection subassembly includes female adapter, female adapter establishes the one end at the cross-section of lead pipe, the cross-section of lead pipe is provided with the hickey with the relative one end of female adapter.

Preferably, the annular mounting groove has been seted up to female adapter's inside, it has sealed rubber ring to embed in the inside annular mounting groove of female adapter, the internal diameter of sealed rubber ring is unanimous with the hickey, makes the laminating that sealed rubber ring can high degree of agreeing with in the outside of hickey, improves sealed effect.

Preferably, a wiring through hole is formed in the threaded connector, the female adapter is screwed with the threaded connector through threads, and the broken line is conveniently connected with a maintenance worker at the broken line position.

Preferably, connector lug seal assembly both sides cross connection has the connecting block, the draw-in groove has been seted up to the connecting block bottom, the inserted block is installed at the connecting block top, inserted block and draw-in groove size looks adaptation can arrange the orderly branch of cable of wiring department through the cooperation of inserted block and draw-in groove.

Preferably, the connecting block passes through lantern ring swing joint in the both sides of through-line pipe, the screw has been seted up on the surface of connecting block, can be with connecting sealing device main part fixed mounting on the wall body through the cooperation of screw and screw.

Compared with the prior art, the utility model provides a sealing device for a mineral insulated cable, which has the following beneficial effects:

the sealing device of the mineral insulated cable is characterized in that the port of the cable is inserted through two ends of the through-line pipe and penetrates out through the section of the symmetrical center of the through-line pipe, then the cable is connected, after the connection is finished, the internal thread joint is screwed at the threaded interface, the internal thread joint is screwed tightly, so that the sealing rubber ring can be tightly attached to the outer ring of the threaded interface, then the wire bodies at the two ends of the through wire pipe are tightly clamped by the matching of the first expansion ring and the second expansion ring, thereby avoiding the loosening effect at the cable interface, secondly, the working personnel can fixedly install the whole wiring sealing device on the wall body through the matching of the screw holes and the screws so as to avoid the wire body from scattering on the ground, and can arrange and install the wiring sealing device through the matching of the clamping grooves and the inserting blocks, thereby reached the line body and arranged neatly, avoided the effect because of the line body winding knot leads to the circuit trouble.

Drawings

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

FIG. 2 is a front view of the present invention;

fig. 3 is a side view of the female adapter of the present invention.

In the figure: 1. sealing the connecting assembly; 101. a wiring through hole; 102. a threaded interface; 103. an internal thread joint; 104. sealing the rubber ring; 2. a lug seal assembly; 201. connecting blocks; 202. a collar; 203. a through pipe; 204. a screw hole; 205. a card slot; 206. a first expansion loop; 207. a second expansion loop; 208. a waterproof sealing ring; 209. and (5) inserting the blocks.

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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a sealing device for a mineral insulated cable comprises a sealing connection assembly 1 and a connector lug sealing assembly 2, wherein the connector lug sealing assembly 2 comprises a through pipe 203, lantern rings 202 are uniformly distributed on the outer side of the through pipe 203, the lantern rings 202 are sleeved on the outer side surface of the through pipe 203, a connection block 201 is fixedly connected to one side of each lantern ring 202, first expansion rings 206 are arranged at two ends of the connector lug sealing assembly 2, second expansion rings 207 are glued inside the first expansion rings 206, waterproof sealing rings 208 are arranged inside the second expansion rings 207, the sealing connection assembly 1 is arranged at the symmetrical center of the through pipe 203, the sealing connection assembly 1 comprises an internal thread connector 103, the internal thread connector 103 is sleeved on one end of the cross section of the through pipe 203, and a threaded connector 102 is arranged at one end of the cross section of the through pipe 203, which is opposite to the internal thread connector 103.

An annular mounting groove is formed in the inner part of the female connector 103, a sealing rubber ring 104 is embedded in the annular mounting groove in the female connector 103, the inner diameter of the sealing rubber ring 104 is consistent with that of the threaded connector 102, the sealing rubber ring 104 can be attached to the outer side of the threaded connector 102 with high engagement degree, the sealing effect is improved, a wiring through hole 101 is formed in the threaded connector 102, the female connector 103 is screwed with the threaded connector 102 through threads, a broken line part is convenient for maintenance personnel to connect the broken line part, connecting blocks 201 are connected to two sides of the connector sealing assembly 2 in a crossed manner, a clamping groove 205 is formed in the bottom of each connecting block 201, an inserting block 209 is mounted at the top of each connecting block 201, the inserting block 209 is matched with the clamping groove 205 in size, cables at the wiring part can be arranged in orderly rows through the matching of the inserting block 209 and the clamping groove 205, the connecting blocks 201 are movably connected to two sides of the wiring pipe 203 through lantern rings 202, and screw holes 204 are formed in the surface of the connecting blocks 201, the connection sealing device main body can be fixedly arranged on a wall body through the matching of the screw holes 204 and the screws.

The working principle is as follows: before the use, a user needs to check the switching device, check whether each component in the switching device is normally installed or not, and use the switching device after the check is completed, firstly, a worker needs to insert a cable port through two ends of the through-tube 203, penetrate through a cross section of a symmetric center of the through-tube 203, then connect a cable, screw the female adapter 103 at the threaded interface 102 after the connection is completed, screw the female adapter 103, enable the sealing rubber ring 104 to be tightly attached to an outer ring of the threaded interface 102, then clamp line bodies at two ends of the through-tube 203 through the matching of the first expansion ring and the second expansion ring, so as to avoid the loosening effect at the cable interface, secondly, the worker can fixedly install the whole wiring sealing device on a wall body through the matching of the screw holes 204 and the screws, avoid the line bodies from scattering on the ground, and arrange the wiring sealing device through the matching of the clamping grooves 205 and the inserting blocks 209, thereby reached the line body and arranged neatly, avoided the effect because of the line body winding knot leads to the circuit trouble.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A sealing arrangement for mineral insulated cables, comprising a sealing connection assembly (1) and a lug sealing assembly (2), characterized in that: connector lug seal assembly (2) is including through-line pipe (203), the outside evenly distributed of through-line pipe (203) has the lantern ring (202), the cover is established at through-line pipe (203) outside surface in lantern ring (202), one side fixedly connected with connecting block (201) of the lantern ring (202), the both ends of connector lug seal assembly (2) all are provided with first expansion ring (206), the inside veneer of first expansion ring (206) has second expansion ring (207), second expansion ring (207) inside is provided with waterproof sealing circle (208), through-line pipe (203) center of symmetry department is provided with sealing connection assembly (1).

2. A sealing device for mineral insulated cables according to claim 1, characterized in that: sealing connection subassembly (1) includes female connection (103), female connection (103) cover is established in the sectional one end of pipe (203) that leads to, the pipe (203) section is provided with hickey (102) with the relative one end of female connection (103).

3. A sealing device for mineral insulated cables according to claim 2, characterized in that: an annular mounting groove is formed in the inner portion of the female adapter (103), a sealing rubber ring (104) is embedded in the annular mounting groove in the inner portion of the female adapter (103), and the inner diameter of the sealing rubber ring (104) is consistent with that of the threaded connector (102).

4. A sealing device for mineral insulated cables according to claim 2, characterized in that: a wiring through hole (101) is formed in the threaded interface (102), and the internal thread joint (103) is screwed with the threaded interface (102) through threads.

5. A sealing device for mineral insulated cables according to claim 1, characterized in that: the connector lug sealing assembly (2) both sides cross connection has connecting block (201), draw-in groove (205) have been seted up to connecting block (201) bottom, inserted block (209) are installed at connecting block (201) top, inserted block (209) and draw-in groove (205) size looks adaptation.

6. A sealing device for mineral insulated cables according to claim 5, characterized in that: connecting block (201) pass through lantern ring (202) swing joint in the both sides of through-line pipe (203), screw (204) have been seted up on the surface of connecting block (201).