Maintenance device for operation and maintenance of power distribution network

Abstract

The invention discloses a maintenance device for operation and maintenance of a power distribution network, which relates to the field of power distribution network maintenance and comprises an electric drive base, an electric drive lifting unit is arranged above the electric drive base, a maintenance platform is arranged at the top of the electric drive lifting unit, and first guardrail frames are symmetrically arranged on two sides of the maintenance platform. A plurality of first handrails are sequentially installed on the inner side face of the first guardrail frame at equal intervals, second guardrail frames are symmetrically arranged on the other two sides of the maintenance platform, a plurality of second handrails are sequentially installed on the inner side faces of the second guardrail frames at equal intervals, and an access door is hinged to one of the first guardrail frames. According to the maintenance device for operation and maintenance of the power distribution network, the extension plates fixedly connected with the first guardrail frame and the second guardrail frame are arranged on the maintenance platform, so that the activity range can be properly enlarged when the activity range provided by the maintenance platform cannot meet the requirement, and the maintenance work can be continuously carried out.

Description

Technical Field

[0001] The present invention relates to a distribution network maintenance technology, and in particular to a maintenance device for distribution network operation and maintenance. Background Art

[0002] The distribution network is composed of overhead lines, cables, towers, distribution transformers, disconnectors, reactive power compensators and some ancillary facilities. It plays an important role in distributing electric energy in the power grid. When a fault occurs during the operation of the distribution network, maintenance personnel are required to carry out rapid repairs. The lifting work frame is an auxiliary maintenance equipment commonly used in the operation and maintenance of the distribution network. Especially for the maintenance of facilities at higher locations, it can provide maintenance personnel with a stable maintenance platform, allowing maintenance personnel to complete the repair of distribution network faults more efficiently.

[0003] The existing lifting work frame mainly consists of an electric drive base, an electric drive lifting unit, and a top maintenance platform. During use, the maintenance platform is lifted to a suitable height by the electric drive lifting unit to provide a stable maintenance work platform for maintenance personnel. However, in actual application, when the position of the maintenance platform cannot meet the needs of continued maintenance during maintenance personnel performing high-altitude operations, the maintenance platform is usually moved by the electric drive base to meet the needs of continued maintenance work. However, since most of the components of the distribution network are installed outdoors, the flatness of the road surface cannot be guaranteed. There may be stones or potholes on the road surface. Therefore, the electric drive base may cause the high-altitude maintenance platform to shake during movement. Since the height of the maintenance platform cannot be determined during operation, when the height is high, the shaking of the electric drive base can easily cause the maintenance platform to roll over, resulting in poor maintenance safety. In addition, when the maintenance platform is first lowered, then moved, and then raised, it takes a long time, resulting in low repair efficiency of the distribution network and easy to cause large economic losses. Summary of the Invention

[0004] The object of the present invention is to provide a maintenance device for distribution network operation and maintenance to solve the above-mentioned deficiencies in the prior art.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A maintenance device for distribution network operation and maintenance, comprising an electric drive base, an electric drive lifting unit provided above the electric drive base, an inspection platform provided on top of the electric drive lifting unit, first guardrail frames symmetrically provided on both sides of the inspection platform, a plurality of first railings equidistantly installed on the inner side surfaces of the first guardrail frames, second guardrail frames symmetrically provided on the remaining two sides of the inspection platform, a plurality of second railings equidistantly installed on the inner side surfaces of the second guardrail frames, and an entry / exit door hingedly connected to one of the first guardrail frames;

[0006] The side of the maintenance platform is provided with a translation groove corresponding to the first guardrail frame and the second guardrail frame respectively, and the inner side of the translation groove is slidably connected with an extension plate, and the first guardrail frame and the second guardrail frame are both provided with a control unit;

[0007] The control unit includes a vertical slot opened inside the extension plate, the inner wall of the vertical slot is fixedly connected to a compression spring, the bottom end of the compression spring is fixedly connected to a clamping strip, the inner wall of the translation slot is provided with a plurality of clamping slots equidistantly along the movable direction of the extension plate, the interior of the extension plate is provided with a wiring slot that passes through the first railing and the first guardrail frame in sequence and extends to the top of the inner wall of the first guardrail frame, the outside of the clamping strip is fixedly connected to a traction rope, and the end of the traction rope away from the clamping strip is fixedly connected to a pull ring.

[0008] Furthermore, the shape and size of the card slot are compatible with the card strip, and the card strip can be snapped into the interior of the card slot.

[0009] Furthermore, the wiring trough located on the second guardrail frame passes through the second railing and the second guardrail frame in sequence and extends to the top of the inner wall of the second guardrail frame.

[0010] Furthermore, the traction rope passes through the inside of the wiring groove.

[0011] Furthermore, the second guardrail frame includes a movable guardrail frame and a fixed guardrail frame, the movable guardrail frame and the fixed guardrail frame are respectively arranged on both sides of the maintenance platform, the fixed guardrail frame is fixedly connected to the maintenance platform, and the movable guardrail frame is fixedly connected to the extension plate.

[0012] Furthermore, a storage groove is provided on the side where the first guardrail frame and the movable guardrail frame are close to each other, and on the side of the fixed guardrail frame close to the first guardrail frame. The first baffle is slidably connected to the inner side surface of the storage groove on the second guardrail frame, the second baffle is slidably connected to the inner side surface of the storage groove on the first guardrail frame, and a third baffle is fixedly connected to the side of the first guardrail frame away from the second baffle. The adjacent first baffles and second baffles, as well as the adjacent first baffles and third baffles, are fixedly connected.

[0013] Furthermore, the first baffle and the second baffle respectively correspond to corresponding extension plate length values.

[0014] Compared with the prior art, the maintenance device for distribution network operation and maintenance provided by the present invention has the following beneficial effects:

[0015] 1. The maintenance device for distribution network operation and maintenance, by arranging extension plates fixedly connected to the first guardrail frame and the second guardrail frame on the maintenance platform, can appropriately increase the range of movement when the range of movement provided by the maintenance platform cannot meet the requirements, thereby meeting the needs of continuous maintenance work.

[0016] 2. The maintenance device for distribution network operation and maintenance, through the use of the control unit, can stably limit the movement of the extension plate during the non-adjustment process, and can effectively adjust the extension plate when adjustment is required, thereby meeting the needs of different working conditions.

[0017] 3. The maintenance device for distribution network operation and maintenance sets the top outlet of the wiring trough at the top of the inner wall of the first guardrail frame and the top of the inner wall of the second guardrail frame, so that the position of the pull ring can be hidden under the top cross bar of the first guardrail frame or the second guardrail frame, making it difficult to be accidentally touched during normal operation, so that the extension plate can always remain stable in the non-adjustment state.

[0018] 4. The maintenance device for distribution network operation and maintenance, through the mutual cooperation between the first baffle, the second baffle and the storage slot, can ensure that there is always a continuous fence mechanism between the first guardrail frame or the second guardrail frame during the position adjustment process, so that after the extension plate is adjusted, the maintenance personnel can still be effectively protected, making the maintenance personnel's work safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the first guardrail frame in an adjustment state according to an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of a partial cross-section of the maintenance platform, the first guardrail frame, and the first railing provided in an embodiment of the present invention;

[0023] Figure 4 The embodiment of the present invention provides Figure 3 The middle part of the structure is enlarged schematic diagram;

[0024] Figure 5 The embodiment of the present invention provides Figure 4A in the middle is an enlarged structural diagram;

[0025] Figure 6 A schematic diagram of a partial cross-sectional structure of a first guardrail frame and a first railing provided in an embodiment of the present invention;

[0026] Figure 7 The embodiment of the present invention provides Figure 6 Enlarged structural diagram at point B in the middle.

[0027] Description of reference numerals:

[0028] 1. Electric drive base; 2. Electric drive lifting unit; 3. Maintenance platform; 31. First guardrail frame; 32. First railing; 33. Second guardrail frame; 331. Movable guardrail frame; 332. Fixed guardrail frame; 34. Second railing; 35. Entry and exit door; 4. Translation slot; 41. Extension plate; 42. Vertical slot; 43. Extrusion spring; 44. Card strip; 45. Card slot; 46. Wiring slot; 47. Traction rope; 48. Pull ring; 5. Storage slot; 51. First baffle; 52. Second baffle; 53. Third baffle. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Example 1:

[0031] See also Figure 1-Figure 7 A maintenance device for distribution network operation and maintenance includes an electric drive base 1, an electric drive lifting unit 2 is provided above the electric drive base 1, and an inspection platform 3 is provided on the top of the electric drive lifting unit 2. First guardrail frames 31 are symmetrically provided on both sides of the inspection platform 3, and a plurality of first railings 32 are equidistantly installed on the inner side surfaces of the first guardrail frames 31. Second guardrail frames 33 are symmetrically provided on the other two sides of the inspection platform 3, and a plurality of second railings 34 are equidistantly installed on the inner side surfaces of the second guardrail frames 33. An entry and exit door 35 is hingedly connected to one of the first guardrail frames 31.

[0032] It should be added that a locking member is provided between the access door 35 and the first guardrail frame 31. The locking member includes an L-shaped frame fixedly connected to the first guardrail frame 31, and a limiting groove is formed between the L-shaped frame and the first guardrail frame 31. The surface of the access door 35 is rotatably connected to a limiting rod corresponding to the limiting groove. The limiting rod can be rotatably engaged with the inside of the limiting groove, thereby limiting the free rotation of the access door 35.

[0033] The side of the maintenance platform 3 is provided with a translation slot 4 corresponding to the first guardrail frame 31 and the second guardrail frame 33 respectively. The inner side of the translation slot 4 is slidably connected to an extension plate 41. The first guardrail frame 31 and the second guardrail frame 33 are both provided with a control unit;

[0034] The control unit includes a vertical slot 42 opened inside the extension plate 41, the inner wall of the vertical slot 42 is fixedly connected to an extrusion spring 43, the bottom end of the extrusion spring 43 is fixedly connected to a clamping strip 44, the inner wall of the translation slot 4 is provided with a plurality of clamping slots 45 equidistantly along the movable direction of the extension plate 41, the interior of the extension plate 41 is provided with a wiring slot 46 that passes through the first railing 32 and the first guardrail frame 31 in sequence and extends to the top of the inner wall of the first guardrail frame 31, the outside of the clamping strip 44 is fixedly connected to a traction rope 47, and the end of the traction rope 47 away from the clamping strip 44 is fixedly connected to a pull ring 48.

[0035] It should be added that the shape and size of the card slot 45 are compatible with the card strip 44 , and the card strip 44 can be snapped into the interior of the card slot 45 .

[0036] Furthermore, the wiring trough 46 located on the second guardrail frame 33 passes through the second railing 34 and the second guardrail frame 33 in sequence and extends to the top of the inner wall of the second guardrail frame 33.

[0037] Furthermore, the traction rope 47 passes through the interior of the wiring groove 46.

[0038] It should be noted that by setting the top outlet of the wiring trough 46 at the top of the inner wall of the first guardrail frame 31 and the top of the inner wall of the second guardrail frame 33, the position of the pull ring 48 can be hidden under the top cross bar of the first guardrail frame 31 or the second guardrail frame 33, so that it is not easy to be accidentally touched during normal operation, so that the extension plate 41 can always remain stable in the non-adjustment state.

[0039] When the maintenance personnel are required to move the maintenance platform 31 and the maintenance personnel 31, the maintenance personnel 31 can move the maintenance platform 31 and the maintenance personnel 31. When the maintenance personnel are required to move the maintenance platform 31 and the maintenance personnel 31, the maintenance personnel 31 can move the maintenance platform 31 and the maintenance personnel 31.

[0040] During the adjustment process, when the operator releases the pull ring 48, the traction force is lost. Under the action of the rebound force of the extrusion spring 43, the card strip 44 can quickly react and move, thereby being locked into the card slot 45 and restricting the continued movement of the extension plate 41. Therefore, when the movement speed is too fast or other problems occur during the adjustment of the extension plate 41, the movement of the extension plate 41 can be quickly restricted, so that the safety of the extension plate 41 during the adjustment process remains high.

[0041] Example 2:

[0042] See also Figure 2 This embodiment provides a technical solution based on the above embodiment: the second guardrail frame 33 includes a movable guardrail frame 331 and a fixed guardrail frame 332. The movable guardrail frame 331 and the fixed guardrail frame 332 are respectively arranged on both sides of the maintenance platform 3, the fixed guardrail frame 332 is fixedly connected to the maintenance platform 3, and the movable guardrail frame 331 is fixedly connected to the extension plate 41.

[0043] In this embodiment, a receiving groove 5 is provided on the side where the first guardrail frame 31 and the movable guardrail frame 331 are close to each other, and on the side of the fixed guardrail frame 332 close to the first guardrail frame 31. The first baffle 51 is slidably connected to the inner side surface of the receiving groove 5 on the second guardrail frame 33, and the second baffle 52 is slidably connected to the inner side surface of the receiving groove 5 on the first guardrail frame 31. A third baffle 53 is fixedly connected to the side of the first guardrail frame 31 away from the second baffle 52, and adjacent first baffles 51 and second baffles 52, as well as adjacent first baffles 51 and third baffles 53, are all fixedly connected.

[0044] It should be supplemented that the first baffle 51 and the second baffle 52 respectively correspond to the length values ​​of the corresponding extension plate 41.

[0045] It should be noted that the length value of the extension plate 41 connected to the first guardrail frame 31 is adapted to the length value of the first baffle 51, and the length value of the extension plate 41 connected to the movable guardrail frame 331 is adapted to the length value of the second baffle 52, so that the length values ​​of the first baffle 51 and the second baffle 52 can meet the needs of adjusting the maximum moving stroke of the extension plate 41.

[0046] During the position adjustment process of the first guardrail frame 31, its movement will drive the first baffle 51 to slide along the inner wall of the storage groove 5 on the movable guardrail frame 331, and during the position adjustment process of the movable guardrail frame 331, its movement will drive the second baffle 52 to slide along the inner wall of the storage groove 5 on the first guardrail frame 31, so that there is always a continuous fence mechanism between the first guardrail frame 31 and the second guardrail frame 33, so that after the extension plate 41 is adjusted, the maintenance personnel can still be effectively protected, making the maintenance personnel's work safer.

[0047] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A maintenance device for power distribution network operation and maintenance, comprising an electric drive base (1), an electric drive lifting unit (2) is arranged above the electric drive base (1), and a maintenance platform (3) is arranged on the top of the electric drive lifting unit (2), characterized in that: The inspection platform (3) is symmetrically provided with first guardrail frames (31) on both sides, and a plurality of first railings (32) are equidistantly installed on the inner side surfaces of the first guardrail frames (31); the inspection platform (3) is symmetrically provided with second guardrail frames (33) on the other two sides, and a plurality of second railings (34) are equidistantly installed on the inner side surfaces of the second guardrail frames (33); and an entry and exit door (35) is hingedly connected to one of the first guardrail frames (31); The side of the maintenance platform (3) is provided with a translation groove (4) corresponding to the first guardrail frame (31) and the second guardrail frame (33), respectively, and the inner side of the translation groove (4) is slidably connected with an extension plate (41), and the first guardrail frame (31) and the second guardrail frame (33) are both provided with a control unit; The control unit comprises a vertical slot (42) provided inside the extension plate (41); an inner wall of the vertical slot (42) is fixedly connected to a compression spring (43); a bottom end of the compression spring (43) is fixedly connected to a clamping strip (44); a plurality of clamping slots (45) are provided on the inner wall of the translation slot (4) at equal intervals along the movable direction of the extension plate (41); a wiring slot (46) is provided inside the extension plate (41) and passes through the first railing (32) and the first guardrail frame (31) in sequence and extends to the top of the inner wall of the first guardrail frame (31); a traction rope (47) is fixedly connected to the outside of the clamping strip (44); and a pull ring (48) is fixedly connected to one end of the traction rope (47) away from the clamping strip (44).

2. A maintenance device for distribution network operation and maintenance according to claim 1, characterized in that: The shape and size of the card slot (45) are compatible with the card strip (44), and the card strip (44) can be snapped into the interior of the card slot (45).

3. A maintenance device for distribution network operation and maintenance according to claim 1, characterized in that: The wiring trough (46) located on the second guardrail frame (33) passes through the second railing (34) and the second guardrail frame (33) in sequence and extends to the top of the inner wall of the second guardrail frame (33).

4. A maintenance device for distribution network operation and maintenance according to claim 1, characterized in that: The traction rope (47) passes through the inside of the wiring groove (46).

5. A maintenance device for distribution network operation and maintenance according to claim 1, characterized in that: The second guardrail frame (33) comprises a movable guardrail frame (331) and a fixed guardrail frame (332), wherein the movable guardrail frame (331) and the fixed guardrail frame (332) are respectively arranged on both sides of the maintenance platform (3), the fixed guardrail frame (332) is fixedly connected to the maintenance platform (3), and the movable guardrail frame (331) is fixedly connected to the extension plate (41).

6. A maintenance device for distribution network operation and maintenance according to claim 5, characterized in that: A receiving groove (5) is provided on the side where the first guardrail frame (31) and the movable guardrail frame (331) are close to each other, and on the side of the fixed guardrail frame (332) close to the first guardrail frame (31); a first baffle (51) is slidably connected to the inner side of the receiving groove (5) on the second guardrail frame (33); a second baffle (52) is slidably connected to the inner side of the receiving groove (5) on the first guardrail frame (31); a third baffle (53) is fixedly connected to the side of the first guardrail frame (31) away from the second baffle (52); adjacent first baffles (51) and second baffles (52) as well as adjacent first baffles (51) and third baffles (53) are fixedly connected.

7. A maintenance device for distribution network operation and maintenance according to claim 6, characterized in that: The first baffle (51) and the second baffle (52) respectively correspond to the length values ​​of the corresponding extension plates (41).

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