Foldable electric power overhaul ladder insulation support

Abstract

The utility model discloses a foldable electric power overhaul ladder insulating support, which relates to the technical field of electric power overhaul ladders and comprises a fixing plate, overhaul ladder supports are arranged at two ends of the fixing plate, a bearing pipe is fixedly connected inside the bottom end of each overhaul ladder support, and balance rods are rotatably connected to the left end and the right end inside each bearing pipe. Two clamping blocks are arranged at the end, close to the center of the bearing pipe, of the outer wall of the balance rod in an array mode, a clamping rod is fixedly connected to the end, located on the front side of the fixing plate, of the balance rod, the interior of the bearing pipe is meshed with the outer wall of the balance rod by forming an inserting hole, a limiting groove is formed in the side wall of the inserting hole, and a bearing frame is rotationally connected to the outer surface of the clamping rod. According to the utility model, the design structure is reasonable, the balance rod is rotated by a certain angle, the balance rod is pulled and the clamping block is driven to slide in the limiting groove until the bearing frame and the telescopic frame move to a proper supporting position, at the moment, the balance rod is reversely rotated by the same angle, and the balance rod is pushed and drives the clamping block to be meshed with the limiting groove, so that the storage is convenient.

Description

Technical Field

[0001] This utility model relates to the field of power maintenance ladder technology, specifically a foldable power maintenance ladder insulating bracket. Background Technology

[0002] Insulated ladders are specialized climbing tools used in power engineering, telecommunications engineering, electrical engineering, and hydropower engineering. Their excellent insulation properties maximize worker safety. Insulated ladders are manufactured using a pultrusion process combining unsaturated resin and glass fiber, with epoxy resin and pin technology. Steel shafts have a protective coating, and laminated insulating materials are treated with insulating paint. The ladder supports and feet have anti-slip designs to reduce fatigue. All parts have no sharp edges, ensuring high safety, strong insulation, low water absorption, and corrosion resistance.

[0003] A-frame insulated ladders are prone to swaying during operation or tilting in windy conditions. While ropes are used to limit the angle of the ladder, this method can lead to instability and threaten operator safety. Furthermore, existing insulated ladder support frames are often too large to store easily, making transporting and maintaining the ladder time-consuming and laborious. To address these issues, we offer a foldable insulated support frame for power maintenance ladders. Utility Model Content

[0004] 1) Technical problems to be solved

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a foldable insulating support for power maintenance ladders.

[0006] (ii) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a foldable electrical maintenance ladder insulating bracket, including a fixed plate, with maintenance ladder brackets at both ends of the fixed plate. A bearing tube is fixedly connected to the bottom of the maintenance ladder bracket, and a balance bar is rotatably connected to both ends of the bearing tube. Two locking blocks are arrayed at one end of the outer wall of the balance bar near the center of the bearing tube. A locking rod is fixedly connected to the end of the balance bar located on the front side of the fixed plate. The bearing tube engages with the outer wall of the balance bar through an insertion hole. A limit groove is formed on the side wall of the insertion hole. A bearing frame is rotatably connected to the outer surface of the locking rod. A limit plate is fixedly connected to the inner wall of the bearing frame. A telescopic frame is slidably connected inside the bearing frame. An insertion rod that engages with the limit plate is slidably connected inside the telescopic frame. A limit block is fixedly connected to the insertion rod near the side wall of the limit plate.

[0008] Furthermore, the top of the maintenance ladder support is rotatably connected to the fixed plate by a rotating rod, and the outer wall of the bearing tube is connected to the maintenance ladder support by a plate and bolts.

[0009] Furthermore, the limiting groove is L-shaped, and the outer wall of the card block and the inner wall of the limiting groove form a sliding connection.

[0010] Furthermore, the locking rod is located at one end away from the center of the bearing pipe, and a positioning pin is inserted between the top of the telescopic frame and the side wall of the maintenance ladder support. A contact frame is fixedly connected to the top of the telescopic frame, and a "U"-shaped groove is opened inside the contact frame.

[0011] Furthermore, the support frame has a sliding groove inside that is slidably connected to the outer wall of the telescopic frame, a baffle is fixedly connected to the side wall of the telescopic frame near the limiting block, and a positioning plate that engages with the baffle is provided on the side wall of the support frame.

[0012] Furthermore, the side wall of the limiting plate is provided with a fixing groove that engages with the limiting block, the inside of the telescopic frame is provided with a notch at the position of the limiting block, the outer wall of the telescopic frame is fixedly connected to the insertion rod at the position of the insertion rod, the insertion rod and the connecting frame form a sliding connection, and a return spring is sleeved on the outer surface of the insertion rod between the connecting frame and the limiting block.

[0013] Furthermore, the maintenance ladder support has several mounting holes inside, and contact plates are bolted into the mounting holes. A foot pedal is fixedly connected to the end of the contact plate away from the maintenance ladder support.

[0014] (iii) Beneficial effects:

[0015] Compared with existing technologies, this foldable electrical maintenance ladder insulation bracket has the following advantages:

[0016] I. This utility model rotates the balance bar at a certain angle, pulls the balance bar and causes the locking block to slide in the limiting groove until the support frame and telescopic frame move to a suitable support position. At this time, the balance bar is reversed at the same angle and pushed. The balance bar causes the locking block to engage with the limiting groove. This solves the problem that the support frames of existing insulated ladders are mostly large in size and inconvenient to store, which leads to time and effort when moving and repairing the ladder. It has the advantage of being easy to store.

[0017] II. This utility model separates the maintenance ladder supports on both sides of the fixed plate, pulls out the positioning pin, rotates the bearing frame and pulls the telescopic frame. The telescopic frame drives the contact frame to engage with the locking rod on the back of the fixed plate. Under the action of the return spring, the telescopic frame drives the limiting block to engage with the limiting plate. This solves the problem of unstable placement caused by the existing A-frame insulated ladder using ropes for angle limiting. It has the advantage of easy limiting. Attached Figure Description

[0018] Figure 1 This is a triaxial drawing of the present invention;

[0019] Figure 2 This is a schematic diagram of the bearing tube of this utility model;

[0020] Figure 3 This is a schematic diagram of the limiting groove of this utility model;

[0021] Figure 4 This is a schematic diagram of the limiting block of this utility model.

[0022] In the diagram: 1. Fixed plate; 2. Maintenance ladder bracket; 3. Bearing pipe; 4. Balance bar; 5. Locking block; 6. Locking rod; 7. Insertion hole; 8. Limiting groove; 9. Bearing frame; 10. Limiting plate; 11. Telescopic frame; 12. Inserting rod; 13. Limiting block; 14. Positioning pin; 15. Contact frame; 16. Baffle; 17. Connecting frame; 18. Return spring; 19. Mounting hole; 20. Foot pedal; 21. Contact plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-4 As shown, this utility model provides a technical solution: a foldable electrical maintenance ladder insulation bracket, including a fixed plate 1, with maintenance ladder brackets 2 at both ends of the fixed plate 1. A bearing tube 3 is fixedly connected to the bottom of the maintenance ladder bracket 2. The top of the maintenance ladder bracket 2 is rotatably connected to the fixed plate 1 by a rotating rod. The outer wall of the bearing tube 3 is connected to the maintenance ladder bracket 2 by a plate and bolts. Balance rods 4 are rotatably connected to both the left and right ends inside the bearing tube 3. Two locking blocks 5 are arranged in an array at one end of the outer wall of the balance rod 4 near the center of the bearing tube 3. A locking rod 6 is fixedly connected to the end of the balance rod 4 located on the front side of the fixed plate 1. The locking rod 6 is located at one end away from the center of the bearing tube 3. The bearing tube 3 has a insertion hole 7 that engages with the outer wall of the balance rod 4. A limiting groove 8 is opened on the side wall of the insertion hole 7. The limiting groove 8 is L-shaped. The outer wall of the locking block 5 and the inner wall of the limiting groove 8 are slidably connected. The shape of the limiting groove 8 facilitates the limiting of the balance rod 4 by the locking block 5.

[0025] The outer surface of the snap rod 6 is rotatably connected to the support frame 9. The inner wall of the support frame 9 is fixedly connected to the limit plate 10. The support frame 9 is slidably connected to the telescopic frame 11. The top of the telescopic frame 11 is inserted between the inner wall of the telescopic frame 11 and the side wall of the maintenance ladder support 2. The top of the telescopic frame 11 is fixedly connected to the contact frame 15. The contact frame 15 has a U-shaped groove inside. The contact frame 15 is designed to support the maintenance ladder support 2.

[0026] The support frame 9 has a sliding groove inside that forms a sliding connection with the outer wall of the telescopic frame 11. The telescopic frame 11 has a slidingly connected insertion rod 12 that engages with the limiting plate 10. A limiting block 13 is fixedly connected to the insertion rod 12 near the side wall of the limiting plate 10. A baffle 16 is fixedly connected to the side wall of the telescopic frame 11 near the limiting block 13. A positioning plate that engages with the baffle 16 is provided on the side wall of the support frame 9. A fixing groove that engages with the limiting block 13 is provided on the side wall of the limiting plate 10. A notch is provided inside the telescopic frame 11 at the position of the limiting block 13. A connecting frame 17 is fixedly connected to the outer wall of the telescopic frame 11 at the position of the insertion rod 12. The insertion rod 12 and the connecting frame 17 form a sliding connection. A return spring 18 is sleeved on the outer surface of the insertion rod 12 between the connecting frame 17 and the limiting block 13. The return spring 18 facilitates the engagement of the limiting block 13 with the limiting plate 10. Separate the maintenance ladder supports 2 on both sides of the fixed plate 1, pull out the positioning pin 14, rotate the bearing frame 9 and pull the telescopic frame 11. The telescopic frame 11 drives the contact frame 15 to engage with the locking rod 6 on the rear side of the fixed plate 1. Under the action of the return spring 18, the telescopic frame 11 drives the limiting block 13 to engage with the limiting plate 10. Several mounting holes 19 are opened inside the maintenance ladder support 2. The mounting holes 19 are bolted to the contact plate 21. The end of the contact plate 21 away from the maintenance ladder support 2 is fixedly connected to the foot pedal 20. Rotate the balance bar 4 at a certain angle, pull the balance bar 4 and drive the locking block 5 to slide in the limiting groove 8 until the bearing frame 9 and the telescopic frame 11 move to the appropriate support position. At this time, reverse the balance bar 4 by the same angle and push the balance bar 4. The balance bar 4 drives the locking block 5 to engage with the limiting groove 8, completing the overall laying of the maintenance ladder.

[0027] Working principle: When using this foldable power maintenance ladder insulation support, separate the maintenance ladder supports 2 on both sides of the fixed plate 1, pull out the positioning pin 14, rotate the bearing frame 9 and pull the telescopic frame 11. The telescopic frame 11 drives the contact frame 15 to engage with the locking rod 6 on the rear side of the fixed plate 1. Under the action of the return spring 18, the telescopic frame 11 drives the limiting block 13 to engage with the limiting plate 10. At the same time, rotate the balance rod 4 at a certain angle, pull the balance rod 4 and drive the locking block 5 to slide in the limiting groove 8 until the bearing frame 9 and the telescopic frame 11 move to the appropriate support position. At this time, reverse the balance rod 4 by the same angle and push the balance rod 4. The balance rod 4 drives the locking block 5 to engage with the limiting groove 8, completing the overall laying of the maintenance ladder.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foldable insulating support for an electrical maintenance ladder, comprising a fixing plate (1), characterized in that: Both ends of the fixed plate (1) are provided with maintenance ladder brackets (2). The bottom end of the maintenance ladder bracket (2) is fixedly connected to a bearing tube (3). The left and right ends of the bearing tube (3) are rotatably connected to balance bars (4). Two locking blocks (5) are arranged in an array at one end of the outer wall of the balance bar (4) near the center of the bearing tube (3). The end of the balance bar (4) located on the front side of the fixed plate (1) is fixedly connected to a locking rod (6). The bearing tube (3) is connected to a insertion hole (7) through which insertion holes are opened. The plug hole (7) engages with the outer wall of the balance bar (4). A limiting groove (8) is opened on the side wall of the plug hole (7). A bearing frame (9) is rotatably connected to the outer surface of the snap rod (6). A limiting plate (10) is fixedly connected to the inner wall of the bearing frame (9). A telescopic frame (11) is slidably connected inside the bearing frame (9). A plug rod (12) that engages with the limiting plate (10) is slidably connected inside the telescopic frame (11). A limiting block (13) is fixedly connected to the plug rod (12) near the side wall of the limiting plate (10).

2. The foldable electrical maintenance ladder insulation bracket according to claim 1, characterized in that: The top of the maintenance ladder support (2) is connected to the fixed plate (1) by a rotating rod, and the outer wall of the bearing tube (3) is connected to the maintenance ladder support (2) by a plate and bolts.

3. The foldable electrical maintenance ladder insulation bracket according to claim 1, characterized in that: The limiting groove (8) is L-shaped, and the outer wall of the card block (5) and the inner wall of the limiting groove (8) are slidably connected.

4. The foldable electrical maintenance ladder insulation bracket according to claim 1, characterized in that: The snap rod (6) is located at one end away from the center of the bearing pipe (3). A positioning pin (14) is inserted between the top of the telescopic frame (11) and the side wall of the maintenance ladder bracket (2). A contact frame (15) is fixedly connected to the top of the telescopic frame (11). A U-shaped groove is opened inside the contact frame (15).

5. The foldable electrical maintenance ladder insulation bracket according to claim 1, characterized in that: The support frame (9) has a sliding groove inside that is slidably connected to the outer wall of the telescopic frame (11). A baffle (16) is fixedly connected to the side wall of the telescopic frame (11) near the limiting block (13). A positioning plate that engages with the baffle (16) is provided on the side wall of the support frame (9).

6. The foldable electrical maintenance ladder insulation bracket according to claim 1, characterized in that: The side wall of the limiting plate (10) is provided with a fixing groove that engages with the limiting block (13). The inside of the telescopic frame (11) is provided with a notch at the position of the limiting block (13). The outer wall of the telescopic frame (11) is fixedly connected to the insertion rod (12). The insertion rod (12) and the connecting frame (17) form a sliding connection. A return spring (18) is sleeved on the outer surface of the insertion rod (12) between the connecting frame (17) and the limiting block (13).

7. The foldable electrical maintenance ladder insulation bracket according to claim 1, characterized in that: The maintenance ladder bracket (2) has several mounting holes (19) inside. A contact plate (21) is inserted into the mounting hole (19) by bolts. A foot pedal (20) is fixedly connected to the end of the contact plate (21) away from the maintenance ladder bracket (2).

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