CN218586383U

CN218586383U - Transformer rectifier intermediate head protection copper shell

Info

Publication number: CN218586383U
Application number: CN202221845351.9U
Authority: CN
Inventors: 张正华
Original assignee: Yangzhou Xinlong Electric Co ltd
Current assignee: Yangzhou Xinlong Electric Co ltd
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2023-03-07
Anticipated expiration: 2032-07-18

Abstract

The utility model discloses a transformer rectifier intermediate head protection copper shell relates to transformer element technical field, including outer tube and neck bush, the neck bush is located the inside of outer tube, and be threaded connection between neck bush and the outer tube inner wall, the inside fixed mounting of outer tube has the collet stopper, the mounted position phase-match of neck bush end and collet stopper, and the outside fixed mounting that the collet stopper is close to the neck bush has the connection terminal, set up to the wiring end on the neck bush other end position, be provided with two line holes on the connection terminal, two line downthehole portions place the rubber circle that contracts in, the rubber circle that contracts in is located the one end position of neck bush inner wall and sets up to the inside lining portion. The utility model discloses at the in-process that uses, can tentatively fix the connector end of two cables simultaneously, prevent the problem that the end of a thread drops from appearing in the long-term use, in addition, adopt adjustable mounting means, both can guarantee the safety in utilization, can not influence subsequent circuit yet and overhaul the operation.

Description

Transformer rectifier intermediate head protection copper shell

Technical Field

The utility model relates to a transformer element technical field especially relates to a transformer rectifier intermediate head protection copper shell.

Background

The electric energy is transmitted from a power plant to thousands of households or production enterprises, a plurality of substations are required to be matched, the most important devices in the substations are transformers, rectifiers and the like, and each substation is connected together in a series connection or parallel connection mode through a cable so as to realize the transmission of the electric energy, and a copper shell for protection is sleeved at each cable connection joint position to protect the cable connection joint position;

aiming at the effect of protecting the copper shell, the problems possibly encountered in the use process of the transformer are combined, for the transformer exposed outdoors, the protective copper shell on the transformer is also exposed outdoors and can be influenced by moisture in the atmospheric environment, if a completely sealed mode is adopted, the subsequent maintenance operation of the transformer circuit is inconvenient, in addition, the cable has certain weight, after the cable connecting joint is connected, a certain end part of the cable bends and sags downwards under the action of gravity, the problem that a cable connecting joint falls off can be caused, and safety accidents are caused;

in view of the above technical problem, the present application proposes a solution.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the transformer rectifier intermediate head protection copper shell that provides, in the use, can tentatively fix the connector end of two cables simultaneously, prevent to appear that the end of a thread drops and the problem of emergence incident in the long-term use, adopt adjustable mounting means in addition, both can guarantee the safety in utilization, can not influence subsequent circuit yet and overhaul the operation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a transformer rectifier intermediate head protection copper shell, includes outer tube and neck bush, the neck bush is located the inside of outer tube, and is threaded connection between neck bush and the outer tube inner wall, the inside fixed mounting of outer tube has the collet stopper, the terminal mounted position phase-match of collet stopper, and the outside position fixed mounting that the collet stopper is close to the neck bush has the connection terminal, set up to the wiring end in the neck bush other end position, be provided with two line holes, two in the wiring hole inside placed the rubber circle that contracts, the rubber circle that contracts in is located the one end position of neck bush inner wall and sets up to the inside lining portion, and sets up to the outside lining portion in the rubber circle other end position that contracts, the mid portion that the rubber circle that contracts in sets up to threading portion.

Preferably, an insulating layer is coated between the wire holder and the bottom support plug, and a sealing ring strip is arranged on the outer wall of one side, close to the inner bushing, of the outer sleeve.

Preferably, a protective rubber ring is fixedly mounted on the inner wall of the inner bushing, a cavity is formed between the protective rubber ring and the inner wall of the inner bushing, a pressurization air nozzle is fixedly mounted on the outer wall of the inner bushing, the pressurization air nozzle is communicated with the cavity, and the cavity is communicated with the inner contracting rubber ring.

Preferably, collet stopper one end fixed mounting has the charging connector, the charging connector end extends to the inside of outer tube, and charging connector inner wall fixed mounting has a support ring frame, slidable mounting has the connecting rod on the support ring frame, fixed mounting has the stifled cap of rubber on the connecting rod terminal position, and fixed mounting has the baffle on the connecting rod circumference outer wall, fixed connection extension spring between baffle and the support ring frame.

Preferably, the diameter of the connecting rod is smaller than the inner diameter of the inflating nozzle, and the diameter of the rubber plugging cap is larger than the inner diameter of the inflating nozzle.

The utility model provides a pair of transformer rectifier intermediate head protection copper shell, beneficial effect lies in:

1. when the structure is used for connecting cables, the two cables are fixed at the same position, and the inner-contracting rubber ring at the position is used for fixing the cables, so that when the two cables are connected, the acting point of the cables is not at the joint of the cables but at the position of the inner-contracting rubber ring, and the problem that a cable connector falls off due to the influence of gravity sag is avoided;

2. when the cable is connected, the compressed rubber ring and the protective rubber ring are pressurized and expanded through the pressurizing air tap, so that the part of the cable, which is positioned at the wiring end, is fastened, and the protective rubber ring is ensured to be positioned in the middle of the inner bushing;

3. in addition, inert gas can be input into the structure through the inflating nozzle, so that the cable head cannot generate the problem of spontaneous combustion under the condition that a short circuit possibly occurs.

Drawings

Fig. 1 is a schematic structural diagram of a transformer rectifier intermediate head protection copper shell according to the present invention;

fig. 2 is a sectional view of fig. 1 in a transformer rectifier intermediate head protection copper shell according to the present invention;

fig. 3 is a sectional view of a bottom plug part in the transformer rectifier intermediate joint protection copper shell provided by the utility model;

fig. 4 is the utility model provides a cut-away view of terminal part in transformer rectifier intermediate head protection copper shell.

In the figure: 1. an outer sleeve; 2. an inner liner; 3. a terminal; 4. pressurizing an air tap; 5. an inflation nozzle; 6. a bottom bracket plug; 7. an inner contracting rubber ring; 701. an inner liner portion; 702. threading part; 703. an outer liner portion; 8. a wire holder; 9. sealing the ring strip; 10. protecting the rubber ring; 11. a connecting rod; 12. a support ring frame; 13. an extension spring; 14. a baffle plate; 15. a rubber plugging cap.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example one

The part is to solve the problem that the cable connector is sagged and falls off due to the influence of gravity after two cables are connected, and the problem is mainly solved by changing the force application point positions of the two cables.

Referring to fig. 1, fig. 2 and fig. 4, a transformer rectifier intermediate head protection copper shell, including outer sleeve 1 and inner bush 2, inner bush 2 is located inside outer sleeve 1, and be threaded connection between inner bush 2 and the outer sleeve 1 inner wall, outer sleeve 1 is inside fixed mounting has collet stopper 6, the terminal mounted position phase-match with collet stopper 6 of inner bush 2, and collet stopper 6 is close to the outside fixed mounting of position of inner bush 2 has wire holder 8, set up to be wiring terminal 3 on the other end position of inner bush 2, be provided with two line holes on wiring terminal 3, the inside rubber ring 7 that contracts of placing of two line holes, the rubber ring 7 that contracts in is located to set up to inner liner 701 on the one end position of inner bush 2 inner wall, and set up to outer liner 703 on the other end position of rubber ring 7 that contracts, the middle part of the rubber ring 7 that contracts sets up to be threading portion 702, scribble the insulating layer between wire holder 8 and the collet stopper 6, be provided with sealing ring 9 on the outer wall position of one side that inner bush 1 and inner bush 2 are close to each other.

Working principle/use principle and advantages: separating the outer sleeve 1 and the inner sleeve 2, respectively passing two cables to be connected through the wiring end 3, respectively passing the cables through the threading part 702 on the middle section of the inner contracting rubber ring 7, and connecting the connecting ends of the two cables to the wiring seat 8, wherein the wiring seat 8 is a current electrical connector, such as a connector on a power panel, and the like, and belongs to common electrical elements, and the details are not repeated herein;

then the outer sleeve 1 and the inner sleeve 2 are connected together in a threaded connection manner, and the intersection of the outer sleeve 1 and the inner sleeve 2 can be ensured to be in a relatively sealed state under the action of the sealing ring strip 9;

it should be noted that: different from the current connection mode, the two cables can be understood as being fixed on the same position, and in the structure, the two cables are fixed in the inward-contracting rubber ring 7, so that after the cable connection work is completed, the acting points of the cables are not on the positions of the connectors of the two cables, and the two cables cannot sag due to the influence of gravity, and the problem that the two cable connectors fall off is caused.

Example two

The part aims at the problems that when the cable is short-circuited and the like, the temperature of the local position of the circuit is too high, and if the fire source is ignited at the moment, potential safety hazards such as spontaneous combustion and the like can occur, so that an inflation protection mode is adopted, and the operation is required to be carried out after the first embodiment is completed.

Referring to fig. 2, 3 and 4, a protective rubber ring 10 is fixedly mounted on the inner wall of the neck bush 2, a cavity is formed between the protective rubber ring 10 and the inner wall of the neck bush 2, a pressurizing air nozzle 4 is fixedly mounted on the outer wall of the neck bush 2, the pressurizing air nozzle 4 is communicated with the cavity, the cavity is communicated with the retracted rubber ring 7, an inflating nozzle 5 is fixedly mounted at one end of a bottom support plug 6, the tail end of the inflating nozzle 5 extends into the outer sleeve 1, a support ring frame 12 is fixedly mounted on the inner wall of the inflating nozzle 5, a connecting rod 11 is slidably mounted on the support ring frame 12, a rubber plug cap 15 is fixedly mounted on the tail end of the connecting rod 11, a baffle 14 is fixedly mounted on the circumferential outer wall of the connecting rod 11, an extension spring 13 is fixedly connected between the baffle 14 and the support ring frame 12, the diameter of the connecting rod 11 is smaller than the inner diameter of the inflating nozzle 5, and the diameter of the rubber plug cap 15 is larger than the inner diameter of the inflating nozzle 5.

Working principle/use principle and advantages: in the use process, in combination with the thread end connection manner in the first embodiment, by connecting a pressurization device, such as a pressurization pump, to the pressurization air faucet 4, and by blowing air to the protective rubber ring 10, the protective rubber ring 10 is expanded, so that the two cables can be accommodated in the middle position of the protective rubber ring 10 without touching the inner wall position of the inner bushing 2, and when pressurization is continued, the retracted rubber ring 7 can be retracted and expanded, the two cables are fixed at the threading portion 702, and the inner lining portion 701 and the outer lining portion 703 are provided to prevent the retracted rubber ring 7 from falling off from the terminal 3;

finally, the inflating nozzle 5 is connected with a structure such as an air pump and the like for inputting non-flame-retardant gas such as carbon dioxide and the like into the inner liner 2, in the process of gas transmission, the gas pushes the rubber plug cap 15 to move towards the inner liner 2, at the moment, the extension spring 13 is in a stretched state, and the inflating nozzle 5 is communicated with the inner part of the inner liner 2; non-flame-retardant gas such as carbon dioxide enters the inner lining 2, and when gas transmission is stopped, firstly, the rubber plug cap 15 is enabled to plug the charging connector 5 by the thrust of the air pressure in the inner lining 2 and the resilience force of the extension spring 13;

the spontaneous combustion problem occurs when the two cable connector positions are locally heated and contact the fire source due to possible problems such as short circuit of the lines, but the problem of spontaneous combustion does not occur because the inner liner 2 is filled with non-flame-retardant gas such as carbon dioxide and the like due to lack of oxygen.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a transformer rectifier intermediate head protection copper shell, includes outer tube (1) and neck bush (2), its characterized in that, neck bush (2) are located the inside of outer tube (1), and be threaded connection between neck bush (2) and outer tube (1) inner wall, the inside fixed mounting of outer tube (1) has collet stopper (6), the mounted position phase-match of neck bush (2) end and collet stopper (6), and collet stopper (6) are close to outside position fixed mounting of neck bush (2) have connection terminal (8), set up to wiring terminal (3) on the other end position of neck bush (2), be provided with two line holes on wiring terminal (3), two the inside rubber circle that contracts (7) of having placed of line hole, the rubber circle that contracts (7) are located to set up to inside lining portion (701) on the one end position of neck bush (2) inner wall, and set up to outside lining portion (703) on the other end position of rubber circle that contracts (7), the mid portion of the rubber circle that contracts (7) sets up to threading portion (702).

2. The transformer rectifier intermediate joint protection copper shell according to claim 1, characterized in that an insulating layer is coated between the wire holder (8) and the bottom support plug (6), and a sealing ring strip (9) is arranged on the outer wall of the outer sleeve (1) and the inner sleeve (2) at the side close to each other.

3. The transformer rectifier intermediate joint protection copper shell according to claim 1, characterized in that a protection rubber ring (10) is fixedly installed on the inner wall of the inner bushing (2), a cavity is formed between the protection rubber ring (10) and the inner wall of the inner bushing (2), a pressurization air nozzle (4) is fixedly installed on the outer wall of the inner bushing (2), the pressurization air nozzle (4) is communicated with the cavity, and the cavity is communicated with the retracted rubber ring (7).

4. The transformer rectifier intermediate head protection copper shell according to claim 1, wherein an inflation nozzle (5) is fixedly installed at one end of the bottom support plug (6), the end of the inflation nozzle (5) extends into the outer sleeve (1), a support ring frame (12) is fixedly installed on the inner wall of the inflation nozzle (5), a connecting rod (11) is slidably installed on the support ring frame (12), a rubber plug cap (15) is fixedly installed at the end position of the connecting rod (11), a baffle (14) is fixedly installed on the circumferential outer wall of the connecting rod (11), and a tension spring (13) is fixedly connected between the baffle (14) and the support ring frame (12).

5. The transformer rectifier intermediate joint protection copper shell according to claim 4, characterized in that the diameter of the connecting rod (11) is smaller than the inner diameter of the charging connector (5), and the diameter of the rubber plug cap (15) is larger than the inner diameter of the charging connector (5).