Emergency repair ladder for power grid

Abstract

The invention discloses a power grid emergency repair ladder, belongs to the technical field of emergency repair ladders, and solves the problems that in the prior art, when an emergency repair ladder is used, the overall structure is unstable, and the emergency repair ladder is prone to inclination. The telescopic ladder mainly comprises a main ladder, a telescopic device is arranged at the top of the main ladder, the telescopic device comprises an auxiliary ladder, the auxiliary ladder is connected with the main ladder in a sliding mode, a plurality of transverse rods are arranged on the auxiliary ladder and the main ladder at equal intervals, a limiting block is arranged at the top of the auxiliary ladder, an upper locking device is hinged to the limiting block, and a lower locking device is hinged to the bottom of the main ladder. Through the sliding connection of the auxiliary ladder and the main ladder, the height of the ladder is adjustable, and the ladder meets the requirements of different operation heights. Due to double locking of the upper locking device and the lower locking device, the stability of the ladder in the using process is ensured, and the operation safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of emergency repair ladders, and in particular to an emergency repair ladder for a power grid. Background Art

[0002] The power grid repair ladder is an indispensable tool in power maintenance and emergency repair operations. Traditional repair ladders usually have a single function and cannot adapt to complex working environments, especially in remote mountainous areas or places with uneven terrain, where the use of traditional ladders is greatly restricted. In addition, traditional repair ladders have many shortcomings in height adjustment, stability, safety and portability, and these shortcomings are particularly prominent in emergency repair tasks. For example, the application with publication number CN117703250A discloses a power grid repair ladder, which includes a first limit device and a second limit device. Its operation is relatively complicated and requires manual participation. Therefore, it is of great practical significance to develop a height-adjustable and automated power grid repair ladder. Summary of the invention

[0003] The purpose of the present invention is to provide a power grid repair ladder to solve the problem that the overall structure of the repair ladder in the prior art is unstable and easy to tilt when in use.

[0004] The present invention is achieved through the following technical solutions:

[0005] A power grid repair ladder comprises a main ladder, wherein a telescopic device is provided on the top of the main ladder, wherein the telescopic device comprises an auxiliary ladder, wherein the auxiliary ladder is slidably connected to the main ladder, wherein a plurality of cross bars are equidistantly provided on the auxiliary ladder and the main ladder, wherein a limit block is provided on the top of the auxiliary ladder, wherein an upper locking device is hingedly provided on the limit block, and a lower locking device is hingedly provided on the bottom of the main ladder.

[0006] Furthermore, slots are provided at the tops of both ends of the main ladder, through slots are provided on the opposite sides of the outer walls at both ends of the main ladder, the auxiliary ladder is plugged into the slots, the tops of the auxiliary ladders are connected to limit blocks, a connecting rod is provided between the two limit blocks, and a hinged seat I is provided in the middle of the connecting rod.

[0007] Furthermore, an upper locking device is provided on the articulated seat I, and the upper locking device includes a double-slider cylinder, and the sliders of the double-slider cylinder are both provided with arc-shaped clamping rods I, and the two arc-shaped clamping rods I are arranged opposite to each other.

[0008] Furthermore, the lower locking device includes an articulated seat II, which is connected to the bottom of the main ladder. Two parallel connecting beams are provided on the articulated seat II. Locking cylinders are provided on the two connecting beams. Arc-shaped clamping rods II are provided on the locking cylinders. The two arc-shaped clamping rods II are arranged opposite to each other. The connecting beams are telescopically arranged.

[0009] Furthermore, support structures are hinged at the bottom of both ends of the main ladder.

[0010] Furthermore, the support structure includes a fixed seat and a rotating shaft column, grooves are provided at the bottoms of both ends of the ladder body, the rotating shaft column is rotatably connected to the grooves, and the fixed seat and the rotating shaft column are an integrally formed structure.

[0011] Furthermore, a non-slip pad is provided on the lower surface of the rotating shaft column.

[0012] Furthermore, the width of the cross bar is adapted to the width of the through slot, the outer diameter of the auxiliary ladder is adapted to the inner diameter of the slot, a plurality of screw holes are provided on the outer wall of the auxiliary ladder, and through holes are provided on the outer walls at both ends of the main ladder. The screw holes are fixed to the through holes by fixing bolts, the inner diameter of the through holes is adapted to the diameter of the fixing bolts, and the inner diameter of the screw holes is adapted to the diameter of the fixing bolts.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present application realizes the height adjustment of the ladder through the sliding connection between the auxiliary ladder and the main ladder to meet the needs of different working heights. The upper locking device and the lower locking device are double locked to ensure the stability of the ladder during use and improve the safety of operation. The design of the slot and the through groove ensures the precise docking of the auxiliary ladder with the main ladder, improving the smoothness and stability of the telescopic process. The support structure increases the contact area of ​​the ladder and improves the stability of the ladder, which is more important when working on soft or uneven ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the present invention;

[0016] Figure 2 It is a left side view of the present invention;

[0017] Figure 3 is a front view of the present invention in an extended state;

[0018] Figure 4 It is a left side view of the invention in the extended state.

[0019] In the figure: 1. main ladder; 2. auxiliary ladder; 3. limit block; 4. cross bar; 5. connecting beam; 6. arc clamping rod II; 7. arc clamping rod I; 8. articulated seat I; 9. supporting structure; 10. screw hole; 11. through hole; 12. articulated seat II. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Embodiment 1: A power grid repair ladder, such as Figure 1-Figure 4 As shown, it includes a main ladder 1, and a telescopic device is provided at the top of the main ladder 1. The telescopic device includes a secondary ladder 2, and the secondary ladder 2 is slidably connected to the main ladder 1. A plurality of cross bars 4 are equidistantly provided on the secondary ladder 2 and the main ladder 1. A limit block 3 is provided at the top of the secondary ladder 2, and an upper locking device is hingedly provided on the limit block 3. A lower locking device is hingedly provided at the bottom of the main ladder 1. The lower locking device includes an articulated seat Ⅱ12, and the articulated seat Ⅱ12 is connected to the bottom of the main ladder 1. Two parallel connecting beams 5 are provided on the articulated seat Ⅱ12, and locking cylinders are provided on the two connecting beams 5. The locking cylinders are provided with arc clamping rods Ⅱ6, and the two arc clamping rods Ⅱ6 are arranged opposite to each other. The two arc clamping rods Ⅱ6 arranged opposite to each other provide a bidirectional clamping force to ensure the stability of the bottom of the main ladder 1; the connecting beam 5 can be telescopically arranged. The top of both ends of the main ladder 1 is provided with slots, and the outer walls of both ends of the main ladder 1 are provided with through slots on the opposite sides. The auxiliary ladder 2 is plugged into the slots, and the top of the auxiliary ladder 2 is connected to the limit block 3. A connecting rod is provided between the two limit blocks, and a hinge seat Ⅰ8 is provided in the middle of the connecting rod. The hinge seat Ⅰ8 is provided with an upper locking device, which includes a double slider cylinder, and the sliders of the double slider cylinder are provided with an arc clamping rod Ⅰ7. The two arc clamping rods Ⅰ7 are arranged opposite to each other, and the two arc clamping rods Ⅰ7 arranged opposite to each other provide a bidirectional clamping force to ensure the stability of the auxiliary ladder 2. Through the sliding connection between the auxiliary ladder 2 and the main ladder 1, the height of the ladder is adjustable to meet the needs of different working heights.

[0023] Embodiment 2, a power grid repair ladder, the bottom of the two ends of the main ladder 1 is hinged with a support structure 9, the support structure 9 increases the contact area of ​​the ladder, the support structure 9 includes a fixed seat and a rotating shaft column, the bottom of the two ends of the ladder body are provided with grooves, the rotating shaft column is rotatably connected to the groove, the rotating connection design of the rotating shaft column and the groove allows the support structure 9 to rotate flexibly to adapt to different angles of the ground, the fixed seat and the rotating shaft column are an integrally formed structure; the lower surface of the rotating shaft column is provided with an anti-skid pad, the anti-skid pad increases the friction between the ladder and the ground, prevents the ladder from sliding, and improves the safety of the operation; the width of the cross bar 4 is the same as that of the passage The width of the slot is adapted, the outer diameter of the auxiliary ladder 2 is adapted to the inner diameter of the slot, a plurality of screw holes 10 are provided on the outer wall of the auxiliary ladder 2, and through holes 11 are provided on the outer walls of both ends of the main ladder 1. The screw holes 10 are fixed to the through holes 11 by fixing bolts, and the inner diameter of the screw holes 10 is adapted to the diameter of the fixing bolts, and the inner diameter of the through holes 11 is adapted to the diameter of the fixing bolts; the precise matching design of the cross bar 4 and the through slot, the auxiliary ladder 2 and the slot ensures the close connection of the various parts of the ladder and improves the stability of the overall structure. The screw holes 10 and the fixing bolts cooperate to ensure that the auxiliary ladder 2 can be firmly fixed after being extended to prevent sliding and improve the safety of operation. Others are the same as in Example 1.

[0024] When transporting the power grid repair ladder of this embodiment, the staff will retract the auxiliary ladder 2, and the screw hole 10 of the auxiliary ladder 2 will be plugged into the slot, and the limit block 3 will be close to the top of the main ladder 1 to achieve overall shrinkage and storage, reduce the occupied space, and facilitate transportation. When in use, the auxiliary ladder 2 is pulled out, and the auxiliary ladder 2 is fixed by the cooperation of the fixing bolt, the screw hole 10 and the through hole 11, and then the arc clamping rod Ⅱ6 on the upper locking device is rotated and matched with the articulated seat Ⅱ12 through the rotating shaft, and then the lower locking device is rotated and matched with the articulated seat Ⅰ8, and the arc clamping rod Ⅱ6 and the arc clamping rod Ⅰ7 clamp the electric pole at the same time, and the staff can climb.

[0025] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A power grid repair ladder, comprising a main ladder (1), characterized in that: The top of the main ladder (1) is provided with a telescopic device, and the telescopic device comprises an auxiliary ladder (2), the auxiliary ladder (2) is slidably connected to the main ladder (1), a plurality of cross bars (4) are equidistantly provided on the auxiliary ladder (2) and the main ladder (1), a limit block (3) is provided on the top of the auxiliary ladder (2), an upper locking device is hingedly provided on the limit block (3), and a lower locking device is hingedly provided on the bottom of the main ladder (1).

2. The power grid repair ladder according to claim 1, characterized in that: The top of both ends of the main ladder (1) are provided with slots, and the outer walls of both ends of the main ladder (1) are provided with through slots on the sides opposite to each other. The auxiliary ladder (2) is plugged into the slots, and the top of the auxiliary ladder (2) is connected to a limit block (3). A connecting rod is provided between the two limit blocks (3), and a hinge seat I (8) is provided in the middle of the connecting rod.

3. The power grid repair ladder according to claim 2, characterized in that: The hinge seat Ⅰ (8) is provided with an upper locking device, which includes a double-slider cylinder. The sliders of the double-slider cylinder are both provided with arc-shaped clamping rods Ⅰ (7), and the two arc-shaped clamping rods Ⅰ (7) are arranged opposite to each other.

4. The power grid repair ladder according to claim 1, characterized in that: The lower locking device comprises an articulated seat II (12), which is connected to the bottom of the main ladder (1), and two parallel connecting beams (5) are arranged on the articulated seat II (12), and the two connecting beams (5) are each provided with a locking cylinder, and the locking cylinder is provided with an arc-shaped clamping rod II (6), and the two arc-shaped clamping rods II (6) are arranged opposite to each other; the connecting beam (5) can be telescopically arranged.

5. The power grid repair ladder according to claim 1, characterized in that: Support structures (9) are hinged at the bottom of both ends of the main ladder (1).

6. The power grid repair ladder according to claim 5, characterized in that: The support structure (9) comprises a fixed seat and a rotating shaft column. Grooves are provided at the bottoms of both ends of the main ladder (1). The rotating shaft column is rotatably connected to the grooves. The fixed seat and the rotating shaft column are an integrally formed structure.

7. The power grid repair ladder according to claim 6, characterized in that: The lower surface of the rotating shaft column is provided with an anti-skid pad.

8. The power grid repair ladder according to claim 2, characterized in that: The width of the cross bar (4) is matched with the width of the through slot, the outer diameter of the auxiliary ladder (2) is matched with the inner diameter of the slot, a plurality of screw holes (10) are provided on the outer wall of the auxiliary ladder (2), and through holes (11) are provided on the outer walls of both ends of the main ladder (1), the screw holes (10) are fixed to the through holes (11) by fixing bolts, the inner diameter of the through holes (11) is matched with the diameter of the fixing bolts, and the inner diameter of the screw holes (10) is matched with the diameter of the fixing bolts.

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