CN219801656U - Grounding device of transformer substation - Google Patents

Abstract

The utility model discloses a transformer substation grounding device which comprises a grounding wire, a storage assembly and a driving piece, wherein the storage assembly comprises a rotating disc piece and a shell, the rotating disc piece comprises a first wheel disc, a second wheel disc and a rotating shaft, the first wheel disc and the second wheel disc are rotatably arranged in the shell through the rotating shaft, a part of the rotating shaft between the first wheel disc and the second wheel disc is provided with a through hole arranged along the radial direction of the rotating shaft, the grounding wire penetrates through the through hole, the grounding wire at one side of the through hole is a first section, the grounding wire at the other side of the through hole is a second section, the first section and the second section are coiled on the rotating shaft along the same direction, the first section and the second section can extend out of the shell, and after the first section and the second section extend out of the shell, the driving piece can control the rotating shaft to rotate so that the first section and the second section are coiled on the rotating shaft again. The transformer substation grounding device can rapidly complete the storage work of the grounding wire, and improves the maintenance efficiency of the transformer substation.

Description

Grounding device of transformer substation

Technical Field

The utility model relates to the technical field of power, in particular to a transformer substation grounding device.

Background

When the transformer substation is maintained, in order to ensure the operation safety, the transformer substation equipment needs to be kept in a power-off state and grounded by utilizing a grounding wire, so that electric power staff also need to carry the grounding wire when climbing to the high position of the transformer substation.

In the related art, after the maintenance of the transformer substation is finished, electric power staff still need to manually coil the wire at high altitude to retrieve the earth connection, or carry out manual coil recovery again with the earth connection handling to ground, waste time and energy, reduced transformer substation maintenance work efficiency.

Disclosure of Invention

The utility model aims to overcome the defects and shortcomings of the prior art, and provides the transformer substation grounding device which can enable a grounding wire to be coiled on a rotating shaft again only by rotating the rotating shaft through a driving piece, so that the ground wire accommodating work is completed rapidly, and the maintenance efficiency of a transformer substation is improved.

The transformer substation grounding device of the embodiment of the utility model comprises: the ground wire and the storage assembly comprise a rotating disc part and a shell, the rotating disc part comprises a first wheel disc, a second wheel disc and a rotating shaft, the first wheel disc and the second wheel disc are rotatably arranged in the shell through the rotating shaft, the first wheel disc and the second wheel disc are spaced apart in the axial direction along the rotating shaft, a part of the rotating shaft between the first wheel disc and the second wheel disc is provided with a through hole arranged along the radial direction of the rotating shaft, the ground wire penetrates through the through hole, the ground wire on one side of the through hole is a first section, the ground wire on the other side of the through hole is a second section, the first section and the second section are coiled on the rotating shaft along the same direction, the first section and the second section can extend out of the shell, the end part of the first section is suitable for being connected with a transformer station bracket, and the end part of the second section is suitable for being connected with the ground; and the driving piece can control the rotating shaft to rotate after the first section and the second section extend out of the shell so as to enable the first section and the second section to be coiled on the rotating shaft again.

According to the transformer substation grounding device provided by the embodiment of the utility model, the storage component comprises the rotary disc part and the shell, the rotary disc part comprises the first wheel disc, the second wheel disc and the rotary shaft, the first wheel disc and the second wheel disc are rotatably arranged in the shell through the rotary shaft, the first wheel disc and the second wheel disc are spaced apart in the axial direction along the rotary shaft, the part of the rotary shaft between the first wheel disc and the second wheel disc is provided with the through holes arranged along the radial direction of the rotary shaft, the grounding wire penetrates through the through holes, the grounding wire at one side of the through holes is a first section, the grounding wire at the other side of the through holes is a second section, the first section and the second section are coiled on the rotary shaft along the same direction, the first section and the second section can extend out of the shell, the end part of the first section is suitable for being connected with a transformer substation support, the end part of the second section is suitable for being connected with the ground, and after the first section and the second section extend out of the shell, the driving part can control the rotary shaft to enable the first section and the second section to be coiled on the rotary shaft, therefore, when the grounding wire is needed to be grounded, an electric power worker can first coil one end (namely the second section) on the ground wire on the transformer substation grounding device, the second section is fixed on the ground wire, and the other end of the rotary shaft can be pulled to the ground wire can be pulled to the ground, and the electric power station can be quickly coiled to the ground and pulled to the ground wire, and the working station can be simultaneously, and the working and can be quickly coiled and pulled to the ground and the ground wire can be completed.

In some embodiments, the driving member is a clockwork spring, the portion of the rotating shaft between the first wheel disc and the housing has a clamping groove, and/or the portion of the rotating shaft between the second wheel disc and the housing has a clamping groove, a rotating end of the clockwork spring is mounted in the clamping groove, a fixed end of the clockwork spring is connected with an inner wall of the housing, and when the first section and the second section extend out of the housing, the clockwork spring is in a tightened state, and when the first section and the second section are coiled on the rotating shaft, the clockwork spring is in a loosened state.

In some embodiments, the substation grounding apparatus further includes a stopping assembly including a ratchet wheel and a stopping pawl, an inner periphery of the ratchet wheel is connected to an outer periphery of the first wheel disc and/or the second wheel disc, one end of the stopping pawl is rotatably connected to an inner wall of the housing through an elastic member, the other end is fitted between teeth of the ratchet wheel, and the stopping pawl can prevent the ratchet wheel from reversing when the clockwork spring is in a contracted state.

In some embodiments, the stop pawl has a hook portion, the teeth of the ratchet have a beveled back face on which an outer side face of the hook portion is movable during forward rotation of the ratchet, and a stop face against which an inner side face of the hook portion abuts when the ratchet is stationary.

In some embodiments, the stop pawl is provided with a first connecting hinge seat, the inner wall of the shell is provided with a second connecting hinge seat, the first connecting hinge seat and the second connecting hinge seat are connected through a pin shaft, the elastic piece is a return spring, and the return spring is sleeved on the pin shaft.

In some embodiments, the stop assembly further comprises a push block, the housing has a mounting hole, the push block is connected with the stop pawl through the mounting hole, and the push block can drive the stop pawl to exit from the teeth of the ratchet wheel when the ratchet wheel is reversed.

In some embodiments, the housing has a first opening and a second opening, the first section and the second section extending out of the housing through the first opening and the second opening, respectively.

In some embodiments, the housing includes a ring wall and cover plates connected to two sides of the ring wall, and the first opening and the second opening are symmetrically disposed on the ring wall.

In some embodiments, the end of the first section is provided with a hanging rod, the top of the hanging rod is provided with a hook, and the end of the second section is provided with a grounding clip.

Drawings

Fig. 1 is a schematic structural view of a substation grounding device according to an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of a substation grounding device according to an embodiment of the utility model.

Fig. 3 is a schematic structural view of a housing assembly of a substation grounding device according to an embodiment of the present utility model.

Fig. 4 is an enlarged view of the structure of the portion a in fig. 3.

Reference numerals:

the ground wire 1, the first segment 11, the second segment 12, the hanger bar 13, the hanger 131, the ground clip 14, the housing assembly 2, the rotating disc 21, the first wheel disc 211, the second wheel disc 212, the rotating shaft 213, the through hole 214, the clamping groove 215, the housing 22, the first opening 221, the second opening 222, the cover plate 223, the annular wall 224, the driving member 3, the spring 31, the stop assembly 4, the ratchet 41, the inclined back 411, the stop surface 412, the stop pawl 42, the first connecting hinge seat 421, the second connecting hinge seat 422, the pin 423, the hook 424, the elastic member 43, the pressing block 44, and the nacelle 5.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

As shown in fig. 1 to 4, the transformer substation grounding device according to the embodiment of the present utility model includes a grounding wire 1, a housing assembly 2, and a driving member 3.

Specifically, the housing assembly 2 includes a rotating disc 21 and a housing 22, the rotating disc 21 includes a first wheel disc 211, a second wheel disc 212 and a rotating shaft 213, the first wheel disc 211 and the second wheel disc 212 are rotatably disposed in the housing 22 through the rotating shaft 213, the first wheel disc 211 and the second wheel disc 212 are spaced apart along an axial direction of the rotating shaft 213, a portion of the rotating shaft 213 between the first wheel disc 211 and the second wheel disc 212 has a through hole 214 disposed along a radial direction thereof, the ground wire 1 passes through the through hole 214, the ground wire 1 at one side of the through hole 214 is a first segment 11, the ground wire 1 at the other side of the through hole 214 is a second segment 12, the first segment 11 and the second segment 12 are wound around the rotating shaft 213 along the same direction, the first segment 11 and the second segment 12 can extend out of the housing 22, an end portion of the first segment 11 is adapted to be connected to a transformer station support, and an end portion of the second segment 12 is adapted to be connected to a ground, after the first segment 11 and the second segment 12 extend out of the housing 22, the driving member 3 can control the rotating shaft 213 to wind the first segment 11 and the second segment 12 around the rotating shaft 213 again around the rotating shaft 213.

For convenience of understanding, the method of using the grounding device of the transformer substation according to the present utility model will be described with reference to the structure of the grounding device of the present utility model, for example, when the transformer substation is to be grounded, an electric power worker may fix one end (i.e., the second section 12) of the grounding wire 1 on the ground, and the other end (i.e., the first section 11) of the grounding wire 1 may be pulled to the high position of the transformer substation for connection, during the process of pulling the grounding wire 1 outwards, the rotation shaft 213 is rotated forward under the driving of the grounding wire 1, and when the transformer substation maintenance is completed, the electric power worker only needs to rotate the rotation shaft 213 through the driving member 3, so that the first section 11 and the second section 12 of the grounding wire 1 can be wound onto the rotation shaft 213 again at the same time, thereby completing the storage work of the grounding wire 1 rapidly and improving the maintenance efficiency of the transformer substation.

It can be appreciated that the ground wire 1 is coiled in the interval space between the first wheel disc 211 and the second wheel disc 212, so that the ground wire 1 can be coiled only in one circle by changing the interval distance between the first wheel disc 211 and the second wheel disc 212, the ground wire 1 can not extend out due to random coiling is avoided, and the applicability of the device is improved.

It should be noted that, when the ground wire 1 is pulled out by an external force and the ground wire 1 extends, the ground wire 1 also drives the rotating shaft 213 to rotate forward due to the connection relationship between the ground wire 1 and the rotating shaft 213, otherwise, the rotating shaft 213 rotates backward to rotate the ground wire 1 back to the rotating shaft 213.

It can be understood that, in the transformer substation grounding device of the present utility model, the housing assembly 2 can house the grounding wire in the housing 22 through the rotating disc member 21, the housing 22 can avoid the grounding wire 1 from being extruded by external collision during the handling process, and the durability of the grounding wire 1 is improved.

According to the transformer substation grounding device provided by the embodiment of the utility model, the storage component comprises the rotary disc part and the shell, the rotary disc part comprises the first wheel disc, the second wheel disc and the rotary shaft, the first wheel disc and the second wheel disc are rotatably arranged in the shell through the rotary shaft, the first wheel disc and the second wheel disc are spaced apart in the axial direction along the rotary shaft, the part of the rotary shaft between the first wheel disc and the second wheel disc is provided with the through holes arranged along the radial direction of the rotary shaft, the grounding wire penetrates through the through holes, the grounding wire at one side of the through holes is a first section, the grounding wire at the other side of the through holes is a second section, the first section and the second section are coiled on the rotary shaft along the same direction, the first section and the second section can extend out of the shell, the end part of the first section is suitable for being connected with a transformer substation support, the end part of the second section is suitable for being connected with the ground, and after the first section and the second section extend out of the shell, the driving part can control the rotary shaft to enable the first section and the second section to be coiled on the rotary shaft, therefore, when the grounding wire is needed to be grounded, an electric power worker can first coil one end (namely the second section) on the ground wire on the transformer substation grounding device, the second section is fixed on the ground wire, and the other end of the rotary shaft can be pulled to the ground wire can be pulled to the ground, and the electric power station can be quickly coiled to the ground and pulled to the ground wire, and the working station can be simultaneously, and the working and can be quickly coiled and pulled to the ground and the ground wire can be completed.

Further, as shown in fig. 3, the driving member 3 is a clockwork spring 31, a portion of the rotating shaft 213 located between the first wheel disc 211 and the housing 22 has a clamping groove 215, and/or a portion of the rotating shaft 213 located between the second wheel disc 212 and the housing 22 has a clamping groove 215, a rotating end of the clockwork spring 31 is mounted in the clamping groove 215, a fixed end of the clockwork spring 31 is connected with an inner wall of the housing 22, and the clockwork spring 31 is in a contracted state when the first section 11 and the second section 12 extend out of the housing 22, and the clockwork spring 31 is in a relaxed state when the first section 11 and the second section 12 are wound around the rotating shaft 213.

In other words, when the first segment 11 and the second segment 12 are pulled by an external force and gradually extend out of the housing 22, the rotating shaft 213 is driven by the ground wire 1, so that the rotating end of the spring 31 is synchronously rotated to gradually tighten, when the extending length of the ground wire 1 meets the requirement, the end of the first segment 11 can be fixed on the transformer substation support, the end of the second segment 12 can be fixed on the ground, so that the tightening state of the spring 31 is maintained, when the ground wire 1 is recovered in the housing 22, the first segment 11 and the second segment 12 can be gradually loosened, and at this time, the resilience force of the spring 31 drives the rotating shaft 213 to rotate in the opposite direction automatically, so that the first segment 11 and the second segment 12 can be coiled on the rotating shaft 213 again, thereby saving time and labor and improving the maintenance work efficiency of the transformer substation.

Further, as shown in fig. 4, the substation grounding apparatus further includes a stopping assembly 4, the stopping assembly 4 including a ratchet 41 and a stopping pawl 42, an inner periphery of the ratchet 41 being coupled to an outer periphery of the first wheel disc 211 and/or the second wheel disc 212, one end of the stopping pawl 42 being rotatably coupled to an inner wall of the housing 22 through an elastic member 43, the other end being fitted between teeth of the ratchet 41, and the stopping pawl 42 preventing the ratchet 41 from reversing when the clockwork spring 31 is in a contracted state.

It will be appreciated that when the clockwork spring 31 is in the tightened state, the resilience force of the clockwork spring 31 drives the rotation shaft 213 to rotate reversely, and the first wheel disc 211 or the second wheel disc 212 and the housing 22 are mutually matched in the form of the ratchet wheel 41 and the pawl, so that the stop assembly 4 can stop the rotation shaft 213 from rotating reversely and simultaneously allow the rotation shaft 213 to rotate continuously, that is, when the ground wire 1 is pulled by external force, the ground wire 1 can extend out of the housing 22 without obstruction, and when the ground wire 1 is loosened, the stop pawl 42 can stop the ratchet wheel 41 from rotating to stop the clockwork spring 31 to drive the rotation shaft 213 to rotate reversely, thereby avoiding the ground wire 1 from being torn by external force for a long time and prolonging the service life of the ground wire 1.

Further, as shown in fig. 4, the stopping pawl 42 has a hook portion 424, the teeth of the ratchet 41 have a beveled back face 411 and a stop face 412, the outer side face of the hook portion 424 is movable on the beveled back face 411 when the ratchet 41 is rotated forward, and the inner side face of the hook portion 424 is stopped against the stop face 412 when the ratchet 41 is stationary.

It will be appreciated that the hook 424 increases the reliability of the engagement of the stop pawl 42 with the teeth of the ratchet wheel 41, prevents the stop pawl 42 from coming out of the ratchet wheel 41 due to excessive resilience of the spring 31, and improves the applicability of the stop assembly 4.

Further, as shown in fig. 4, the stop pawl 42 is provided with a first connecting hinge seat 421, the inner wall of the housing 22 is provided with a second connecting hinge seat 422, the first connecting hinge seat 421 and the second connecting hinge seat 422 are connected by a pin shaft 423, the elastic member 43 is a return spring, and the return spring is sleeved on the pin shaft 423.

It will be appreciated that the form of engagement of the connecting hinge support with the pin 423 enhances the stability of the connection of the stop pawl 42 to the housing 22, prevents the stop pawl 42 from disengaging from the housing 22 during repeated swinging, and improves the applicability of the stop assembly 4.

Further, as shown in fig. 4, the stopping assembly 4 further includes a pressing block 44, the housing 22 has a mounting hole (not shown), the pressing block 44 is connected to the stopping pawl 42 through the mounting hole, and the pressing block 44 can drive the stopping pawl 42 to withdraw from between teeth of the ratchet wheel 41.

It can be understood that the ratchet 41 can be in the non-blocking state by pressing quickly, and the resilience force of the spring 31 can drive the rotating shaft 213 to rotate, so that the ground wire 1 is quickly rewound on the rotating shaft 213, and the accommodating work of the ground wire 1 is completed.

Further, as shown in fig. 2, the housing 22 has a first opening 221 and a second opening 222, and the first section 11 and the second section 12 correspondingly extend out of the housing 22 through the first opening 221 and the second opening 222, so that two ends of the ground wire 1 extend out of the housing 22 from the first opening 221 and the second opening 222 respectively, thereby avoiding a knotting phenomenon that may occur when the first section 11 and the second section 12 extend out of the housing 22 from the same opening, and improving the applicability of the device.

Further, as shown in fig. 2 and 3, the housing 22 includes a circumferential wall 224 and cover plates 223 connected to both sides of the circumferential wall 224, and the first opening 221 and the second opening 222 are symmetrically disposed on the circumferential wall 224.

In other words, the housing 22 is in a shape of a circular box, the first opening 221 and the first opening 221 are symmetrically arranged, so that the first section 11 and the second section 12 are prevented from being mutually wound outside when the grounding wire 1 is recovered while the appearance aesthetic property of the housing 22 is improved, and the applicability of the device is improved.

Further, as shown in fig. 1 and 2, the end of the first section 11 is provided with a hanging rod 13, the top of the hanging rod 13 is provided with a hook 131, and the end of the second section 12 is provided with a grounding clip 14.

It will be appreciated that the hanging rod 13 at the end of the first section 11 is convenient for the power plant staff to carry about, so that the power plant staff can climb the transformer substation bracket and pull the grounding wire 1 to the transformer substation high position, and the hanging hook 131 at the top of the hanging rod 13 is convenient for the power plant staff to connect the grounding wire 1 on the transformer substation bracket, and the grounding clamp 14 at the end of the second section 12 is convenient for the power plant staff to connect the grounding wire 1 with the ground rapidly, so as to improve the grounding firmness.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (9)

1. A substation grounding device, comprising:

the ground wire and the storage assembly comprise a rotating disc part and a shell, the rotating disc part comprises a first wheel disc, a second wheel disc and a rotating shaft, the first wheel disc and the second wheel disc are rotatably arranged in the shell through the rotating shaft, the first wheel disc and the second wheel disc are spaced apart in the axial direction along the rotating shaft, a part of the rotating shaft between the first wheel disc and the second wheel disc is provided with a through hole arranged along the radial direction of the rotating shaft, the ground wire penetrates through the through hole, the ground wire on one side of the through hole is a first section, the ground wire on the other side of the through hole is a second section, the first section and the second section are coiled on the rotating shaft along the same direction, the first section and the second section can extend out of the shell, the end part of the first section is suitable for being connected with a transformer station bracket, and the end part of the second section is suitable for being connected with the ground;

and the driving piece can control the rotating shaft to rotate after the first section and the second section extend out of the shell so as to enable the first section and the second section to be coiled on the rotating shaft again.

2. A substation grounding arrangement according to claim 1, characterized in that the driving member is a clockwork spring, the part of the rotating shaft between the first wheel disc and the housing is provided with a clamping groove, and/or the part of the rotating shaft between the second wheel disc and the housing is provided with a clamping groove, the rotating end of the clockwork spring is arranged in the clamping groove, the fixed end of the clockwork spring is connected with the inner wall of the housing, and when the first section and the second section extend out of the housing, the clockwork spring is in a tightened state, and when the first section and the second section are coiled on the rotating shaft, the clockwork spring is in a loosened state.

3. The substation grounding apparatus according to claim 2, further comprising a stopper assembly including a ratchet wheel and a stopper pawl, an inner periphery of said ratchet wheel being connected to an outer periphery of said first wheel disc and/or said second wheel disc, one end of said stopper pawl being rotatably connected to an inner wall of said housing by an elastic member, and the other end being fitted between teeth of said ratchet wheel, and said stopper pawl preventing reverse rotation of said ratchet wheel when said clockwork spring is in a contracted state.

4. A substation grounding device according to claim 3, wherein the stop pawl has a hook portion, the teeth of the ratchet wheel having a beveled back face on which an outer side face of the hook portion is movable during forward rotation of the ratchet wheel and a stop face against which an inner side face of the hook portion stops when the ratchet wheel is stationary.

5. A substation grounding device according to claim 3, wherein the stop pawl is provided with a first connection hinge support, the inner wall of the housing is provided with a second connection hinge support, the first connection hinge support and the second connection hinge support are connected by a pin shaft, the elastic member is a return spring, and the return spring is sleeved on the pin shaft.

6. A substation grounding arrangement according to claim 3, wherein said stop assembly further comprises a push block, said housing having a mounting hole through which said push block is connected to said stop pawl, said push block driving said stop pawl out of between teeth of said ratchet wheel upon reversal of said ratchet wheel.

7. The substation grounding arrangement according to any one of claims 1-6, wherein said housing has a first opening and a second opening, said first and second sections protruding out of said housing through said first and second openings, respectively.

8. The substation grounding arrangement according to claim 7, wherein said housing comprises a ring wall and cover plates connected to both sides of said ring wall, said first opening and said second opening being symmetrically arranged on said ring wall.

9. The substation grounding device according to any one of claims 1-6, wherein the end of said first segment is provided with a hanger bar, the top of said hanger bar is provided with a hook, and the end of said second segment is provided with a grounding clip.