CN217903468U

CN217903468U - 10 kilovolt distribution transformer rack prepackage type wiring subassembly

Info

Publication number: CN217903468U
Application number: CN202221525437.3U
Authority: CN
Inventors: 陈世宁; 国家栋
Original assignee: Nanning Power Supply Bureau of Guangxi Power Grid Co Ltd
Current assignee: Nanning Power Supply Bureau of Guangxi Power Grid Co Ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-11-25
Anticipated expiration: 2032-06-17

Abstract

The utility model discloses a 10 kilovolt joins in marriage transformer rack prepackage type lead wire subassembly, including a pair of restriction cover of dismantling the connection, it is right this be equipped with the centre gripping interval that is used for fixed lead wire and high-voltage cable between the restriction cover, be equipped with in the centre gripping interval and transfer the briquetting, one of them the lateral wall of restriction cover articulates there is the drive post, the utility model discloses well accessible drives the cooperation of section of thick bamboo post and traction lever, drives the activity of pressure regulating piece in order to realize temporarily loosening the action of lead wire and high-voltage cable, and when it is implemented, earlier with lead wire and high-voltage cable centre gripping here between the restriction cover, in case need to adjust the contact position of adjusting lead wire and high-voltage cable, can directly rotate and drive section of thick bamboo post, later drive section of thick bamboo post and can take the traction lever to slide along driving the post to order about that the pressure regulating piece is close to or keep away from this to increase or reduce the contact pressure of lead wire and high-voltage cable, from this alright adjust the position of lead wire and high-voltage cable under the condition that need not lift the restriction cover.

Description

10 kilovolt distribution transformer rack prepackage type wiring subassembly

Technical Field

The utility model relates to a distribution equipment technical field, concretely relates to 10 kilovolt join in marriage and become rack prepackage type wiring subassembly.

Background

In rural electric network construction transformation implementation process, 10 kilovolt pole frame type distribution transformer platform district is the last step-down equipment before the application of production and living, and the regulation requires that the drop switch interval must not be less than 0.5 meter, when using according to current mounting means, three drop switch are respectively through 3 support insulator installation fixed in on the cross arm, and switch, transformer and high-voltage cable are connected to the rethread lead wire at last, and lead wire and high-voltage cable are connected the time mostly through the fastener.

Most of the existing fasteners are connected and fixed through a hoop-sleeve type structure and the like, for example, patent document with application number of CN201920312775.0 discloses a prefabricated distribution transformer rack, and the document describes a wire self-locking connecting device which has an anti-falling power supply function, is simple in structure, convenient to detach and convenient to use.

However, the above-mentioned scheme has limitations in the dismounting operation in the face of maintenance, for example, when the equipment has faults such as aging and the like and needs maintenance, the lead fastener needs to be dismounted to perform lead aging maintenance, but when the fastener is remounted, in case of improper operation, the adjacent fastener is easy to cause a short distance, even the lead is twisted in case of serious conditions, so that the lead needs to be dismounted again to perform the distance adjustment action, but the operation is labor-intensive, if the fastener is loosened for a short time, the fastening degree of the lead and the cable connection cannot be well adjusted due to the fastener after the installation, and the phenomenon of insufficient contact is easy to occur.

Therefore, the lead wire assembly in the prior art is easy to adjust the fixed position of the fastener in the face of the dismounting operation in the maintenance process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a 10 kilovolt distribution transformer rack prepackage type wiring subassembly to solve among the prior art in the easy fastener fixed position regulation not smooth technical problem of dismouting operation when faced the maintenance.

In order to solve the technical problems, the utility model specifically provides the following technical scheme,

a preassembled type lead wire assembly of a 10 KV distribution transformer rack comprises a pair of limit sleeves which are detachably connected, a clamping area for fixing a lead wire and a high-voltage cable is arranged between the limit sleeves, a pressure regulating block is arranged in the clamping area, the outer side wall of one of the limit sleeves is hinged with a driving column, the outer side wall of the driving column is in threaded connection with a driving barrel column, and a traction rod connected with the pressure regulating block is arranged at one end, close to the limit sleeve, of the driving barrel column;

the draw bar can drive the pressure regulating block to be close to or far away from the axial lead direction of the clamping area so as to increase or reduce the contact pressure between the lead and the high-voltage cable.

As a preferred scheme of the utility model, the traction rod comprises a sliding rotating sleeve sleeved on the side wall of the driving cylinder close to one end of the limiting sleeve and at least one push-pull rod penetrating through the side wall of the limiting sleeve;

one end of each push-pull rod is hinged to the side wall of the sliding rotating sleeve, and the other end of each push-pull rod is hinged to the side wall of the pressure regulating block.

As an optimized proposal of the utility model, the inner side wall of the restriction sleeve is provided with a pull rod passing hole at the position corresponding to the push-pull rod.

As a preferred scheme of the utility model, it includes and overlaps the articulated head that rotates with the restriction to drive the post, the screw thread post that the cover was established in driving the section of thick bamboo post is installed to the restriction cover one side of keeping away from of rotating the head, the holding tank that holds the push-and-pull rod is seted up to the lateral wall that rotates the head.

As a preferred scheme of the utility model, the lateral wall of restriction cover is installed around the cover, set up in the pin joint outside that drives post and restriction cover around the cover, the guide arc groove has been seted up around the cover inner wall, the guide arc groove is used for the guide to drive the post along being on a parallel with the deflection of centre gripping interval axial lead direction.

As a preferred scheme of the utility model, the both sides that drive the post are provided with at least one respectively and around the return spare that the cover inside wall is connected, the return spare is used for driving the post and deflects to accomplish the back and promote the drive post and reset.

As a preferred scheme of the utility model, the pressure regulating piece is provided with prevents inclined to one side strip, the inside wall of restriction cover is seted up and is prevented inclined to one side spacing restriction groove of strip, prevent that inclined to one side strip is used for the restriction to transfer the position of piece.

Compared with the prior art, the utility model has the following advantages,

the utility model discloses the cooperation of well accessible drive section of thick bamboo post and traction lever, it loosens the action of lead wire and high-pressure cable with temporary realization to drive the activity of pressure regulating piece, thereby the contact position of supplementary regulation lead wire and high-pressure cable, during its concrete implementation, earlier with lead wire and high-pressure cable centre gripping here between the restriction cover, in case need adjust the contact position of regulation lead wire and high-pressure cable, but direct rotation drives the section of thick bamboo post, later drive the section of thick bamboo post can take the traction lever along driving the post to slide, so as to order about the pressure regulating piece and be close to or keep away from the interval axial lead direction of centre gripping, increase or reduce the contact pressure of lead wire and high-pressure cable from this, alright adjust the position of lead wire and high-pressure cable under the condition that need not lift the restriction cover down.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

Fig. 1 is a schematic structural view of a distribution transformer rack in an embodiment of the present invention;

fig. 2 is a side view of a distribution transformer rack in an embodiment of the present invention;

fig. 3 is a schematic structural view of a limiting sleeve installed on a distribution transformer rack in an embodiment of the present invention;

FIG. 4 is a schematic diagram of the pressure regulating block according to the embodiment of the present invention;

fig. 5 is an enlarged view of a portion a in fig. 3.

Reference numerals in the figures denote the following respectively,

1-a transformer; 2-a lead; 3-a restraining sleeve; 4-a push-pull rod; 5-pressure regulating block; 6-driving the column; 7-driving the cylinder; 8, a draw bar;

31-the tie rod passes through the hole; 32-surrounding shield; 33-guiding the arc groove; 34-a return member; 35-deviation prevention strips; 36-a restraining groove;

61-a rotating head; 62-a threaded post; 63-accommodating a tank;

81-sliding rotary sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-5, the utility model provides a 10 kv distribution transformer rack prepackage type lead wire assembly, which comprises a pair of limit sleeves 3 which can be disassembled for connection, a clamping area for fixing a lead wire 2 and a high-voltage cable is arranged between the pair of limit sleeves 3, a voltage adjusting block 5 is arranged in the clamping area, the outer side wall of one of the limit sleeves 3 is hinged with a driving column 6, the outer side wall of the driving column 6 is connected with a driving cylinder column 7 by screw thread, and one end of the driving cylinder column 7 close to the limit sleeve 3 is provided with a traction rod 8 connected with the voltage adjusting block 5;

the draw bar 8 can drive the pressure regulating block 5 to approach or leave the axial lead direction of the clamping area so as to increase or reduce the contact pressure between the lead 2 and the high-voltage cable.

The utility model discloses well accessible drives the cooperation of a section of thick bamboo post 7 and traction lever 8, it loosens the action of lead wire and high-pressure cable with temporary realization to drive transfer block 5 activity, thereby the auxiliary regulating lead wire 2 and the contact position of high-pressure cable, during its concrete implementation, earlier with lead wire 2 and high-pressure cable centre gripping here to between the restriction cover 3, in case need adjust the contact position of adjusting lead wire 2 and high-pressure cable, but direct rotation drives a section of thick bamboo post 7, later drive a section of thick bamboo post 7 can take traction lever 8 to slide along driving post 6, in order to order about transfer block 5 to be close to or keep away from the interval axial lead direction of centre gripping, increase or reduce the contact pressure of lead wire 2 and high-pressure cable from this, alright adjust the position of lead wire and high-pressure cable under the condition that need not lift restriction cover 3 off.

Lead wire 2's effect is connected transformer 1 who sets up on electric wire cement pole among the prior art, refer to fig. 1 and fig. 2, and it has shown the concrete structure of the distribution transformer rack among the prior art, and the utility model discloses a concrete mounted position sets up at the lead wire 2 other end, that is to say that lead wire 2 one end is connected with the transformer, and the other end passes through the utility model discloses an subassembly is connected with high-voltage cable, and connects three lead wire 2 on the transformer 1, all installs an isolation switch, drop out fuse and column type arrester on every lead wire 2.

The common fasteners in the prior art are various and complicated, such as patent document CN201920312775.0, which discloses a prefabricated distribution transformer rack, and a wire self-locking connecting device described in the document has a function of preventing reverse power supply, but the fasteners are mainly used after being installed, but the problem of position adjustment in the installation process is not solved by a corresponding scheme.

And the utility model discloses to this problem, can realize carrying on the contact pressure of lead wire 2 and high-voltage cable after the fastener is installed and adjust the position that convenient quick adjustment fastener is in the high-voltage cable (the fastener of this department indicates this to restriction cover 3, and the fastener of other positions indicates the fastener among the prior art).

In order to enable the traction rod 8 to normally push and pull the pressure adjusting block 5 when the driving cylindrical column 7 rotates, preferably, the traction rod 8 comprises a sliding rotating sleeve 81 sleeved on the side wall of one end, close to the limiting sleeve 3, of the driving cylindrical column 7 and at least one push-pull rod 4 penetrating through the side wall of the limiting sleeve 3;

one end of each push-pull rod 4 is hinged with the side wall of the sliding rotating sleeve 81, and the other end of each push-pull rod 4 is hinged with the side wall of the pressure regulating block 5.

Once the pressure regulating block 5 needs to be driven, only the driving column 6 needs to be held and the barrel column 7 needs to be rotationally driven, at this time, the driving barrel column 7 can spirally feed the outer side wall of the driving column 6, when the driving barrel column 7 rotates, the sliding rotating sleeve 81 cannot rotate (the connection structure here can be realized through the prior art, for example, a ring sleeve is arranged on the side wall of the end part of the driving barrel column 7, and then an annular groove for clamping the ring sleeve is arranged on the inner side wall of the sliding rotating sleeve 81), and when the driving barrel column 7 moves towards one side of the limiting sleeve 3, the sliding rotating sleeve 81 can sequentially push the push-pull rod 4 and the pressure regulating block 5 to move towards the axial lead direction of the clamping area, so as to increase the pressure of the lead 2 and the high-voltage cable.

Because of the subassembly of the tight lead wire 2 of installation clamp and high-pressure cable among the prior art, operating personnel climbs manual operation on the cement pole mostly, its operating range is limited, especially during the position of adjusting part, can't promote the quick arrival assigned position of subassembly, so preferred, the lateral wall of restriction cover 3 is installed around cover 32, around cover 32 sets up in the pin joint outside that drives post 6 and restriction cover 3, guide arc groove 33 has been seted up around cover 32 inner wall, guide arc groove 33 is used for the guide to drive post 6 along being on a parallel with the deflection of the interval axial lead direction of centre gripping.

After the lead 2 and the high-voltage cable are fixed in the clamping area, once the contact position between the lead 2 and the high-voltage cable needs to be adjusted, the barrel column 7 is driven to rotate only in the temporary reverse direction, so that the barrel column 7 is driven to move towards the side far away from the limiting sleeve 3, then the pressure regulating block 5 releases the lead 2 and the high-voltage cable (in order to prevent the lead 2 from directly falling off from the pressure regulating block 5 at the moment, a clamp for fixing the lead 2 can be installed on the pressure regulating block 5), at the moment, an operator can hold the driving column 6 to start deflecting along the guiding arc groove 33, namely, at the moment, the driving column 6 deflects in the guiding arc groove 33 by taking the hinge point of the driving column 6 and the limiting sleeve 3 as a rotation center, and applies force along the driving column 6 in the deflecting process to push the limiting sleeve 3 to drive the lead 2 to move along the side wall of the high-voltage cable until the lead 2 slides to a proper position, and then rotates the driving column 7 again, so that the driving column 7 moves towards the side of the limiting sleeve 3, so as to increase the pressure between the lead 2 and the high-voltage cable.

The inner side wall of the limiting sleeve 3 is provided with a pull rod through hole 31 at the position corresponding to the push-pull rod 4.

The reason for this through hole 31 is that the push-pull rod 4 will deflect when the driving post 6 deflects, and if the pull rod does not pass through the hole 31, the push-pull rod 4 will easily restrict the driving post 6 from deflecting.

In order to prevent the push-pull rod 4 from being blocked by the driving column 6 in the deflection process, the situation that the deflection amplitude of the whole driving column 6 is too small is caused, preferably, the driving column 6 comprises a rotating head 61 hinged with the limiting sleeve 3, one side, away from the limiting sleeve 3, of the rotating head 61 is provided with a threaded column 62 sleeved in the driving cylinder 7, and the side wall of the rotating head 61 is provided with a containing groove 63 containing the push-pull rod 4.

When the holding threaded column 62 deflects, the holding threaded column 62 rotates with the joint of the rotating head 61 and the limiting sleeve 3 as a rotating fulcrum, and the rotating threaded column 62 also deflects with the push-pull rod 4, at this time, the push-pull rod 4 also deflects with the joint between the push-pull rod 4 and the pressure regulating block 5 as a rotating center, and once the deflection amplitude is large, the push-pull rod 4 is clamped into the accommodating groove 63.

In order to prevent the driving post 6 from being continuously swayed by wind under normal conditions, preferably, at least one return member 34 (preferably a spring) connected to the inner side wall of the surrounding cover 32 is respectively disposed on two sides of the driving post 6, and the return member 34 is used for pushing the driving post 6 to return after the driving post 6 is completely deflected.

The force is simultaneously applied to the two sides of the rotating head 61 through the plurality of return pieces 34, so that the rotating head 61 cannot easily shake.

The pressure regulating block 5 is provided with an anti-deviation strip 35, a limiting groove 36 for limiting the anti-deviation strip 35 is formed in the inner side wall of the limiting sleeve 3, and the anti-deviation strip 35 is used for limiting the position of the pressure regulating block 5.

The deviation-preventing bar 35 can be clamped in the limiting groove 36, so that when the push-pull rod 4 deflects, the pressure-regulating block 5 cannot be driven by the inclined push-pull rod 4 to slide out of the limiting sleeve 3.

To sum up, the utility model discloses when specifically using:

firstly clamping the lead 2 and the high-voltage cable between the pair of limiting sleeves 3, then holding the threaded column 62, and rotating to drive the cylinder column 7, at the moment, driving the cylinder column 7 to spirally feed on the outer side wall of the threaded column 62 and move towards one side of the limiting sleeves 3, at the moment, the sliding rotating sleeve 81 can sequentially push the push-pull rod 4 and the pressure regulating block 5 to move towards the axial lead direction of the clamping area, so that the pressure of the lead 2 and the high-voltage cable is increased, and the fixed connection of the lead 2 and the high-voltage cable is realized.

After the lead wire 2 and the high-voltage cable are fixed in the clamping area, once the contact position between the lead wire 2 and the high-voltage cable needs to be adjusted, the barrel post 7 is driven to rotate only in the temporary reverse direction, so that the barrel post 7 is driven to move towards the side away from the limiting sleeve 3, then the pressure adjusting block 5 releases the lead wire 2 and the high-voltage cable, an operator can hold the threaded post 62 to start deflecting along the guiding arc groove 33, namely, the threaded post 62 rotates by taking the hinged part of the rotating head 61 and the limiting sleeve 3 as a rotating fulcrum, the rotating threaded post 62 also deflects with the push-pull rod 4, the push-pull rod 4 also deflects at the pull-rod through hole 31 by taking the hinged part between the push-pull rod 4 and the pressure adjusting block 5 as a rotating center, and once the deflection amplitude is large, the push-pull rod 4 is clamped in the accommodating groove 63.

At this time, the user can apply force along the inclined threaded post 62 to push the pair of restricting sleeves 3 to bring the lead wires 2 along the side wall of the high-voltage cable until the pair of restricting sleeves slide to a proper position, and then rotate the driving cylinder 7 again to move the driving cylinder 7 towards one side of the restricting sleeves 3 to increase the pressure of the lead wires 2 and the high-voltage cable.

The two sides of the rotating head 61 are simultaneously forced by the plurality of return pieces 34 when the threaded columns 62 are released, so that the rotating head 61 cannot easily shake.

The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.

Claims

1. A10 kV distribution transformer rack prepackage type lead wire assembly is characterized by comprising a pair of limit sleeves (3) which are detachably connected, a clamping area used for fixing a lead (2) and a high-voltage cable is arranged between the pair of limit sleeves (3), a pressure regulating block (5) is arranged in the clamping area, the outer side wall of one limit sleeve (3) is hinged with a driving column (6), the outer side wall of the driving column (6) is in threaded connection with a driving barrel column (7), and a draw bar (8) connected with the pressure regulating block (5) is arranged at one end, close to the limit sleeves (3), of the driving barrel column (7);

the draw bar (8) can drive the pressure regulating block (5) to be close to or far away from the axial lead direction of the clamping area so as to increase or reduce the contact pressure between the lead (2) and the high-voltage cable.

2. The preassembly type lead wire assembly of a 10 kV distribution transformer stand according to claim 1, wherein the draw bar (8) comprises a sliding rotating sleeve (81) sleeved on the side wall of one end, close to the limiting sleeve (3), of the driving barrel column (7) and at least one push-pull rod (4) penetrating through the side wall of the limiting sleeve (3);

one end of each push-pull rod (4) is hinged to the side wall of the sliding rotating sleeve (81), and the other end of each push-pull rod (4) is hinged to the side wall of the pressure regulating block (5).

3. The preassembled lead wire assembly of a 10 kilovolt distribution transformer stand according to claim 1, characterized in that a surrounding cover (32) is installed on the outer side wall of the limiting sleeve (3), the surrounding cover (32) is arranged outside the hinge point of the driving column (6) and the limiting sleeve (3), a guide arc groove (33) is formed in the inner wall of the surrounding cover (32), and the guide arc groove (33) is used for guiding the driving column (6) to deflect along the direction parallel to the axial lead of the clamping section.

4. The preassembled lead assembly of a 10 kilovolt distribution transformer stand according to claim 3, characterized in that both sides of the driving post (6) are respectively provided with at least one return member (34) connected with the inner side wall of the surrounding cover (32), and the return members (34) are used for pushing the driving post (6) to return after the driving post (6) is deflected.

5. The preassembled wiring assembly of claim 2, wherein the limiting sleeve (3) has a pull rod through hole (31) at a position corresponding to the push-pull rod (4).

6. The preassembly type lead wire assembly of the 10 kV distribution and transformation rack according to claim 2, wherein the driving column (6) comprises a rotating head (61) hinged to the limiting sleeve (3), a threaded column (62) sleeved in the driving barrel column (7) is mounted on one side of the rotating head (61) away from the limiting sleeve (3), and a receiving groove (63) for receiving the push-pull rod (4) is formed in a side wall of the rotating head (61).

7. The preassembly type lead wire assembly of the 10 kV distribution and transformation rack according to claim 2, wherein the voltage regulating block (5) is provided with an anti-deviation strip (35), a limiting groove (36) for limiting the anti-deviation strip (35) is formed in the inner side wall of the limiting sleeve (3), and the anti-deviation strip (35) is used for limiting the position of the voltage regulating block (5).