CN113851949A

CN113851949A - Ring main unit

Info

Publication number: CN113851949A
Application number: CN202111270845.9A
Authority: CN
Inventors: 江海明; 石坚; 黄志伟; 曾文兵; 黄国威; 黄永宁; 林玉波
Original assignee: Guangdong Power Grid Co Ltd; Huizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Huizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2021-12-28

Abstract

The invention discloses a ring main unit, and belongs to the technical field of power distribution equipment. This looped netowrk cabinet includes looped netowrk cabinet body and butt joint subassembly, and the butt joint subassembly is including the butt joint body, has seted up the spout along the first direction on the butt joint body, is equipped with the guide in the spout, and the guide can stretch out for the butt joint body of one of them looped netowrk cabinet, and the spout of another looped netowrk cabinet can slide and locate on the guide to realize the direction that another looped netowrk cabinet removed, thereby improved the butt joint precision, avoid damaging the extension sleeve that extends joint and looped netowrk cabinet, reduced the extension cost. The looped netowrk cabinet still includes the rolling member, and the bottom of looped netowrk cabinet body is located to the rolling member, and can with ground butt to in the artifical direction that changes the looped netowrk cabinet, turn to the manual work of looped netowrk cabinet with the meticulous control of loop-crane class equipment, thereby reduce the butt joint degree of difficulty between a plurality of looped netowrk cabinets, improved butt joint efficiency.

Description

Ring main unit

Technical Field

The invention relates to the technical field of power distribution equipment, in particular to a ring main unit.

Background

The ring main unit is a group of electric equipment which is arranged in a metal or nonmetal insulating cabinet body or is made into an assembled interval ring main power supply unit. The looped netowrk cabinet can extend, when expanding a plurality of looped netowrk cabinets, is equipped with the extension sleeve on the looped netowrk cabinet, utilizes loop wheel machine class equipment and artifical supplementary removal looped netowrk cabinet for the extension sleeve of one of them looped netowrk cabinet is connected with the one end of extending the joint, and the extension sleeve of another looped netowrk cabinet is connected with the other end of extending the joint, in order to realize the extension of a plurality of looped netowrk cabinets.

However, the expansion process depends on crane equipment and manual control to realize the alignment of the expansion joint and the expansion sleeve, the alignment difficulty is high, the accuracy is poor, the expansion sleeve and the expansion joint are easily damaged in the expansion process, a large amount of time and labor are wasted in the expansion process, and the expansion cost is increased.

Therefore, it is desirable to provide a ring main unit to solve the above problems.

Disclosure of Invention

The invention aims to provide a ring main unit, which solves the problems of high difficulty and poor precision in the existing ring main unit butt joint process, improves the butt joint efficiency and the butt joint precision, and further reduces the expansion cost.

In order to realize the purpose, the following technical scheme is provided:

a ring main unit, comprising:

a ring main unit body;

the butt joint assembly is arranged on the ring main unit body along a first direction and comprises a butt joint body, a sliding groove is formed in the butt joint body along the first direction, a guide piece is arranged in the sliding groove and can extend out relative to the butt joint body of one ring main unit, and the sliding groove of the other ring main unit can be arranged on the guide piece in a sliding mode;

the rolling member, the rolling member is located the bottom of looped netowrk cabinet body, and can with ground butt, in order to realize turning to of looped netowrk cabinet.

As an alternative of the ring main unit, a plurality of first positioning holes are formed at intervals along the first direction at the bottom of the sliding groove, a second positioning hole is formed in the guide, and the positioning piece sequentially penetrates through the second positioning hole and the first positioning hole.

As an alternative of the ring main unit, the docking assembly is divided into a first docking assembly and a second docking assembly, the first docking assembly is disposed on the side wall of the ring main unit body, the second docking assembly is disposed at the bottom end of the ring main unit body, and the rolling member is connected to the second docking assembly.

As an alternative of the ring main unit, the docking body is divided into a first docking body and a second docking body, the first docking assembly includes the first docking body, and a side of the first docking body opposite to the chute is a plane; the second butt joint assembly comprises a second butt joint body, one side, far away from the sliding groove, of the second butt joint body is provided with a containing groove, and the rolling piece is arranged in the containing groove.

As an alternative of the ring main unit, the ring main unit further comprises an adjusting member connected to the bottom end of the second docking body for adjusting whether the rolling member directly contacts with the ground.

As an alternative of the ring main unit, the bottom end of the second butt joint body is provided with a yielding protrusion, the adjusting element is an L-shaped plate, the L-shaped plate comprises a first plate and a second plate, the top end of the first plate is provided with a yielding groove, the second plate is provided with a through groove, the through groove is communicated with the accommodating groove, and when the yielding protrusion is arranged in the yielding groove, the rolling element is arranged in the accommodating groove and does not contact with the ground; when the groove wall of the abdicating groove is abutted against one side of the second butt joint body, which is provided with the sliding groove, the rolling piece penetrates through the through groove to be contacted with the ground.

As an alternative scheme of the ring main unit, a first fixing hole is formed in the abdicating protrusion, a second fixing hole is formed in the first plate, and the fastening piece can sequentially penetrate through the second fixing hole and the first fixing hole.

As an alternative of the ring main unit, the second fixing hole includes a first half hole and a second half hole, the first half hole is communicated with the second half hole, and when the fastening member passes through the first half hole and is connected with the first fixing hole, the rolling member is disposed in the accommodating groove; when the fastener passes through the second half hole to be connected with the first fixing hole, the rolling piece passes through the through groove to be in contact with the ground.

As an alternative of the ring main unit, two rolling members are provided, and the two rolling members are arranged at the bottom end of the ring main unit body at intervals along the second direction; the first direction and the second direction are vertically arranged in a horizontal plane.

As an alternative to the ring main unit, the rolling members are arranged in one-to-one correspondence with the second docking assemblies.

Compared with the prior art, the invention has the beneficial effects that:

the ring main unit comprises a ring main unit body and a butt joint assembly, wherein the butt joint assembly comprises a butt joint body, a sliding groove is formed in the butt joint body along a first direction, a guide piece is arranged in the sliding groove and can extend out relative to the butt joint body of one ring main unit, and the sliding groove of the other ring main unit can be arranged on the guide piece in a sliding mode so as to realize the guide of the movement of the other ring main unit, so that the butt joint precision is improved, an expansion joint and an expansion sleeve on the ring main unit are prevented from being damaged, and the expansion cost is reduced. The looped netowrk cabinet still includes the rolling member, and the bottom of looped netowrk cabinet body is located to the rolling member, and can with ground butt, reduced the bottom of looped netowrk cabinet and the frictional force on ground, improved the smoothness nature that the looped netowrk cabinet removed and turned to in the manual work changes the direction of looped netowrk cabinet, turn to the manual work of looped netowrk cabinet with the meticulous control of loop wheel machine class equipment transformation, thereby reduce the butt joint degree of difficulty between a plurality of looped netowrk cabinets, improved butt joint efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a ring main unit according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a docking process of two ring main units in the embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a second docking assembly in an embodiment of the invention;

FIG. 4 is an exploded view of a second docking assembly in a first view according to an embodiment of the present invention;

FIG. 5 is an exploded view of a second docking assembly from a second perspective in accordance with an embodiment of the present invention;

fig. 6 is an enlarged view of a portion a in fig. 5.

Reference numerals:

1. a ring main unit body; 2. a docking assembly; 3. a rolling member; 4. an adjustment member;

21. butting the bodies; 211. a chute; 2111. a first positioning hole; 212. a first docking body; 213. a second docking body; 2131. accommodating grooves; 2132. a abdication bulge; 2133. a first fixing hole; 2134. mounting holes; 22. a guide member; 221. a second positioning hole; 23. a positioning member; 24. a first docking assembly; 25. a second docking assembly; 26. a fastener;

31. a universal wheel; 32. mounting a boss;

41. a yielding groove; 42. a through groove; 43. a second fixing hole; 431. a first half-bore; 432. a second half-bore.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

As a common power distribution device, the ring main unit is required to be expanded sometimes under actual working conditions, namely, a plurality of ring main units are butted. Generally, the ring main units are moved through crane equipment and manual assistance, so that two ends of the expansion joint are respectively inserted into the expansion sleeves on the two ring main units to realize the butt joint of the plurality of ring main units.

Example one

Therefore, as shown in fig. 1 to fig. 6, the present embodiment provides a ring main unit to solve the above problem. The looped netowrk cabinet includes looped netowrk cabinet body 1 and butt joint subassembly 2, butt joint subassembly 2 is located on looped netowrk cabinet body 1 along first direction (being the X direction in the attached drawing), butt joint subassembly 2 is including butt joint body 21, butt joint body 21 is gone up and has been seted up spout 211 along the first direction, be equipped with guide 22 in the spout 211, guide 22 can stretch out for the butt joint body 21 of one of them looped netowrk cabinet, the spout 211 of another looped netowrk cabinet can slide and locate on guide 22, in order to realize the direction that another looped netowrk cabinet removed, thereby the butt joint precision has been improved, avoid damaging the expansion sleeve that extends joint and looped netowrk cabinet, the cost is extended.

The looped netowrk cabinet still includes rolling member 3, and rolling member 3 locates the bottom of looped netowrk cabinet body 1, and can reduce the bottom of looped netowrk cabinet and the frictional force on ground with the ground butt, has improved the smoothness nature that the looped netowrk cabinet removed and turned to in the manual work changes the direction of looped netowrk cabinet, turns to the manual work of looped netowrk cabinet with the meticulous control of loop wheel machine class equipment transformation, thereby reduces the butt joint degree of difficulty between a plurality of looped netowrk cabinets, has improved butt joint efficiency.

Optionally, a plurality of first positioning holes 2111 are formed at intervals along the first direction at the bottom of the sliding groove 211, a second positioning hole 221 is formed in the guide 22, and the positioning element 23 sequentially passes through the second positioning hole 221 and the first positioning hole 2111, so that the guide 22 is fixed in the sliding groove 211, and the reduction of the docking accuracy due to the movement of the guide 22 in the sliding groove 211 is avoided. And the plurality of first positioning holes 2111 are provided so that the position of the guide 22 in the slide groove 211 is adjustable, so as to adjust the protruding amount of the guide 22 with respect to the docking body 21. Further optionally, a plurality of second positioning holes 221 are provided, the plurality of second positioning holes 221 are arranged at intervals along the first direction, and the positioning elements 23 and the second positioning holes 221 are arranged in a one-to-one correspondence manner, so as to improve the connection strength between the guide 22 and the docking body 21. Further, the positioning element 23 may be a bolt, a screw, a bolt, or other fastening elements, which are not described in detail herein.

Optionally, the docking assembly 2 is divided into a first docking assembly 24 and a second docking assembly 25, the first docking assembly 24 is disposed on the side wall of the ring main unit body 1, the second docking assembly 25 is disposed at the bottom end of the ring main unit body 1, and the rolling member 3 is connected to the second docking assembly 25. Further optionally, the first docking assembly 24 is provided with a plurality of first docking assemblies 24, and the plurality of first docking assemblies 24 are arranged at intervals along the vertical direction (i.e. the Z direction in the drawing). The increase of butt joint subassembly 2 can improve the stability of butt joint between a plurality of looped netowrk cabinets.

Specifically, the docking body 21 is divided into a first docking body 212 and a second docking body 213, the first docking assembly 24 includes the first docking body 212, and one side of the first docking body 212 opposite to the sliding groove 211 is a plane, so that the first docking assembly 24 is conveniently installed on the side wall of the ring main unit body 1. The second docking assembly 25 includes a second docking body 213, a receiving groove 2131 is formed on one side of the second docking body 213 away from the sliding groove 211, and the rolling element 3 is disposed in the receiving groove 2131. Further optionally, a mounting hole 2134 is formed in a groove wall of the accommodating groove 2131, which is in contact with the bottom end of the ring main unit body 1, a mounting protrusion 32 is formed at the top end of the rolling member 3, and the mounting protrusion 32 can be arranged in the mounting hole 2134, so that the rolling member 3 is connected with the second butt joint component 25. The bottom of rolling member 3 is rotated and is equipped with universal wheel 31, and universal wheel 31 can with ground butt, has reduced the looped netowrk cabinet butt joint in-process, the frictional force on bottom and ground has improved the smoothness nature that the looped netowrk cabinet removed and turned to in the butt joint in-process adjustment looped netowrk cabinet's position. Further optionally, a plurality of mounting holes 2134 are provided, and the mounting protrusions 32 are disposed in one-to-one correspondence with the mounting holes 2134 to enhance the stability of the mounting of the rolling elements 3 in the receiving grooves 2131.

Further optionally, two rolling members 3 are provided, and the two rolling members 3 are arranged at the bottom end of the ring main unit body 1 at intervals along the second direction (i.e. the Y direction in the attached drawing) so as to improve the stability of the ring main unit in the docking process. Wherein the first direction and the second direction are vertically arranged in a horizontal plane. Further optionally, the rolling members 3 and the second docking assemblies 25 are arranged in a one-to-one correspondence manner, so that each rolling member 3 can be accommodated in the second docking assembly 25, the rolling members 3 are prevented from being exposed and being always in contact with the ground, and the position of the ring main unit is prevented from being deviated after the docking is completed.

The ring main unit has two states, one is that the rolling part 3 is directly contacted with the ground in the butt joint process, which is convenient for the ring main unit to turn; one is that the rolling part 3 is not contacted with the ground after the butt joint is finished so as to be convenient for the stable placement of the ring main unit on the ground. Therefore, optionally, the ring main unit further includes an adjusting member 4 connected to the bottom end of the second docking body 213 for adjusting whether the rolling member 3 is in direct contact with the ground.

Specifically, the bottom end of the second butt joint body 213 is provided with a yielding protrusion 2132, the adjusting element 4 is an L-shaped plate, the L-shaped plate comprises a first plate and a second plate, the top end of the first plate is provided with a yielding groove 41, the second plate is provided with a through groove 42, the through groove 42 is communicated with the accommodating groove 2131, and when the yielding protrusion 2132 is arranged in the yielding groove 41, the rolling element 3 is arranged in the accommodating groove 2131 and does not contact with the ground; when the groove wall of the receding groove 41 abuts against the side of the second abutting body 213 where the sliding groove 211 is provided, the rolling member 3 passes through the through groove 42 and contacts the ground. As can be seen from the above, by adjusting the different positions of the adjusting member 4 on the second docking body 213, the switching between the contact between the rolling member 3 and the ground can be achieved. Further, when the rolling member 3 is not in contact with the ground, the adjusting member 4 is in contact with the ground, so that the ring main unit is stably placed on the ground. Further, the bottom of regulating part 4 is equipped with a plurality of rag bolts, and rag bolt can be connected with ground to realize the fixed of looped netowrk cabinet position.

Further optionally, a first fixing hole 2133 is formed in the abdicating protrusion 2132, a second fixing hole 43 is formed in the first plate, and the fastener 26 can sequentially penetrate through the second fixing hole 43 and the first fixing hole 2133, so that the adjusting piece 4 can be connected with the second butting body 21321. Further optionally, the first fixing holes 2133 and the second fixing holes 43 are provided in plurality and spaced apart along the first direction, so as to improve the stability of the connection between the adjusting member 4 and the second docking body 213. Further, the fastening member 26 may be a bolt, a screw, or other fastening components, which are not described in detail herein.

Further optionally, the second fixing hole 43 includes a first half hole 431 and a second half hole 432, the first half hole 431 is communicated with the second half hole 432, when the fastening member 26 passes through the first half hole 431 and is connected with the first fixing hole 2133, the rolling member 3 is arranged in the accommodating groove 2131, so that the bottom end of the adjusting member 4 is connected with the ground, and stable placement of the ring main unit is facilitated; when the fastening member 26 passes through the second half-hole 432 and is connected with the first fixing hole 2133, the rolling member 3 passes through the through-groove 42 and contacts with the ground, so that the rolling member 3 abuts against the ground, and the ring main unit is convenient to turn and move.

Example two

The difference between this embodiment and the first embodiment is the adjustment manner of the rolling element 3, and other parts are the same, which will not be described herein. The manner of adjustment of the rolling elements 3 is discussed below:

optionally, the holding tank 2131 has been seted up on the cell wall that is close to ground and has been led to the groove 42, and rolling member 3 still includes the telescopic link, and the top of telescopic link links to each other with the cell wall that holding tank 2131 is close to the looped netowrk cabinet, and the bottom of telescopic link is equipped with universal wheel 31, and universal wheel 31 can locate in holding tank 2131 or pass logical groove 42 and ground contact. As described above, the position of the universal wheel 31 can be adjusted by extending and retracting the extendable rod.

It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A ring main unit, comprising:

a ring main unit body (1);

the butt joint assembly (2) is arranged on the ring main unit body (1) along a first direction, the butt joint assembly (2) comprises a butt joint body (21), a sliding groove (211) is formed in the butt joint body (21) along the first direction, a guide piece (22) is arranged in the sliding groove (211), the guide piece (22) can extend out relative to the butt joint body (21) of one ring main unit, and the sliding groove (211) of the other ring main unit can be arranged on the guide piece (22) in a sliding mode;

rolling member (3), rolling member (3) are located the bottom of looped netowrk cabinet body (1), and can with ground butt, in order to realize turning to of looped netowrk cabinet.

2. The ring main unit according to claim 1, wherein a plurality of first positioning holes (2111) are formed at intervals along the first direction at the bottom of the sliding groove (211), a second positioning hole (221) is formed on the guide (22), and the positioning member (23) sequentially passes through the second positioning hole (221) and the first positioning hole (2111).

3. The ring main unit according to claim 1, wherein the docking assembly (2) is divided into a first docking assembly (24) and a second docking assembly (25), the first docking assembly (24) is disposed on a side wall of the ring main unit body (1), the second docking assembly (25) is disposed at a bottom end of the ring main unit body (1), and the rolling member (3) is connected to the second docking assembly (25).

4. The ring main unit as claimed in claim 3, wherein the docking body (21) is divided into a first docking body (212) and a second docking body (213), the first docking assembly (24) comprises the first docking body (212), and a side of the first docking body (212) opposite to the sliding groove (211) is a plane; the second butt joint assembly (25) comprises a second butt joint body (213), one side, far away from the sliding groove (211), of the second butt joint body (213) is provided with a containing groove (2131), and the rolling piece (3) is arranged in the containing groove (2131).

5. Ring main unit according to claim 4, characterized in that it further comprises an adjusting member (4) connected to the bottom end of said second docking body (213) for adjusting whether said rolling member (3) is in direct contact with the ground.

6. The ring main unit as claimed in claim 5, wherein the bottom end of the second butt joint body (213) is provided with a yielding protrusion (2132), the adjusting member (4) is an L-shaped plate, the L-shaped plate comprises a first plate and a second plate, the top end of the first plate is provided with a yielding groove (41), the second plate is provided with a through groove (42), the through groove (42) is communicated with the accommodating groove (2131), and when the yielding protrusion (2132) is arranged in the yielding groove (41), the rolling member (3) is arranged in the accommodating groove (2131) and does not contact with the ground; when the groove wall of the receding groove (41) is abutted against one side of the second butt joint body (213) provided with the sliding groove (211), the rolling piece (3) penetrates through the through groove (42) to be in contact with the ground.

7. The ring main unit as claimed in claim 6, wherein the abdicating projection (2132) is provided with a first fixing hole (2133), the first plate is provided with a second fixing hole (43), and a fastening member (26) can sequentially pass through the second fixing hole (43) and the first fixing hole (2133).

8. The ring main unit as claimed in claim 7, wherein the second fixing hole (43) comprises a first half hole (431) and a second half hole (432), the first half hole (431) is communicated with the second half hole (432), when the fastening member (26) passes through the first half hole (431) to be connected with the first fixing hole (2133), the rolling member (3) is arranged in the receiving groove (2131); when the fastener (26) passes through the second half hole (432) and is connected with the first fixing hole (2133), the rolling piece (3) passes through the through groove (42) and is contacted with the ground.

9. The ring main unit according to claim 3, wherein there are two rolling members (3), and the two rolling members (3) are arranged at the bottom end of the ring main unit body (1) at intervals along the second direction; the first direction and the second direction are vertically arranged in a horizontal plane.

10. Ring main unit according to claim 9, wherein said rolling members (3) are arranged in a one-to-one correspondence with said second docking assemblies (25).