Fence type steel ladder device for mounting power equipment

Abstract

The utility model discloses a fence type steel ladder device for electrical equipment installation, which comprises a support frame and a steel ladder, the bottom of the support frame is provided with walking wheels, the periphery of the top of the support frame is provided with a fence, the upper end of the steel ladder is rotatably connected with the top of the support frame, and the lower end of the steel ladder is rotatably connected with the top of the support frame. The fence corresponding to the upper end of the steel ladder is provided with an opening, workers can conveniently enter and exit from the fence, adjusting screw rods are evenly distributed at the bottom of the supporting frame, and the walking wheels can leave the ground by adjusting the adjusting screw rods. The supporting frame and the steel ladder are both of a combined structure, the overall height can be changed, and therefore the supporting frame is suitable for installation of electrical equipment of different heights. The walking wheels are arranged at the lower end of the supporting frame, moving is convenient, the fence is arranged at the upper end of the supporting frame, the protection effect is good, the situation that operators fall off due to errors is avoided, and safety is good.

Description

A fence-type steel ladder device for installing power equipment Technical Field

[0001] This utility model relates to a protective technology for the installation of power equipment, and in particular to a fence-type steel ladder device for the installation of power equipment. Background Technology

[0002] Electrical equipment is an essential infrastructure for production and daily life. It mainly includes two categories: power generation equipment and power supply equipment. Power generation equipment mainly includes power plant boilers, steam turbines, gas turbines, water turbines, generators, transformers, etc. Power supply equipment mainly includes transmission lines of various voltage levels, instrument transformers, contactors, etc. Power facilities are what we commonly see, such as high-voltage lines, substations, power towers, and transformers.

[0003] When installing electrical equipment, people need to use climbing aids to work. The most commonly used climbing aid is the ladder. The commonly used ladder consists of two long and thick poles as sides, with a horizontal bar in the middle suitable for climbing. Ladders are divided into two types: single ladders and A-frame ladders. However, traditional ladders cannot change the height, which limits their use.

[0004] Patent document CN222668089U discloses a ladder fixing device for installing power facilities, including: a ladder, a drawer slidably connected to the inner side of the ladder, turntables rotatably connected to both sides of the ladder, two connecting rods rotatably connected to the opposite sides of the two turntables, connecting columns rotatably connected to the other ends of the two connecting rods, and locking blocks fixedly connected to one side of each of the two connecting columns. The drawer has slots on both the front and rear sides that fit the locking blocks, and multiple locking blocks are movably inserted into the corresponding slots on their outer sides. L-shaped frames are slidably connected to the inner sides of the multiple locking blocks, and the tops of the multiple L-shaped frames are fixedly connected to the same inner wall of the top of the ladder. This invention, through the cooperation of the pivot, handwheel, locking blocks, connecting rods, and L-shaped plates, allows the ladder to be vertically adjusted, thus facilitating the user's maintenance of power equipment at higher locations.

[0005] The above technical solution has some problems: 1. The upper end of the ladder needs to be connected to the power equipment, which affects the installation progress and also poses a risk of wear and tear on the power equipment; 2. There is no protective mechanism at the upper end of the ladder, which poses a safety hazard of workers falling accidentally; 3. A base is set at the lower end of the ladder, but the base cannot be moved. When changing the installation position, the entire ladder needs to be moved, which is laborious and time-consuming. Summary of the Invention

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of existing calibration technology and provide a fence-type steel ladder device for the installation of power equipment that is reasonably designed, can be adjusted in height and moved back and forth, and also has a fence for protection.

[0007] The technical solution of this utility model is:

[0008] A fence-type steel ladder device for installing power equipment includes a support frame and a steel ladder. The bottom of the support frame is equipped with wheels, and the top of the support frame is surrounded by a fence. The upper end of the steel ladder is rotatably connected to the top of the support frame. The fence corresponding to the upper end of the steel ladder has an opening to facilitate workers to enter and exit the fence. Adjusting screws are evenly distributed at the bottom of the support frame, and adjusting the adjusting screws can lift the wheels off the ground.

[0009] Furthermore: a gate is provided at the opening of the fence, one side of the gate is rotatably connected to one side of the opening of the fence, and a lock is provided on the other side of the gate and the other side of the opening of the fence, the lock being a bolt or a padlock.

[0010] Furthermore, the fence is composed of spaced vertical bars and spaced horizontal bars connected to each other. The lower end of the vertical bar is fixedly connected to the top of the support frame, or the vertical bar is inserted into a fixed sleeve fixed to the top of the support frame, allowing for disassembly and assembly.

[0011] Furthermore, the support frame adopts a split connection structure, including a bottom support frame, at least one middle support frame and a top support frame. The bottom support frame and the adjacent middle support frame adopt a plug-in connection structure, the adjacent middle support frames adopt a plug-in connection structure, and the top support frame and the adjacent middle support frame adopt a plug-in connection structure.

[0012] Furthermore, a first fixing pin or a first connecting bolt is provided at the interlocking joint to prevent the interlocking joint from falling off.

[0013] Furthermore, the steel ladder adopts a split connection structure, including a bottom steel ladder, at least one middle steel ladder, and a top steel ladder. The bottom steel ladder and the adjacent middle steel ladder are connected by a plug-in connection structure, the adjacent middle steel ladders are connected by a plug-in connection structure, and the top steel ladder and the adjacent middle steel ladder are connected by a plug-in connection structure. Each steel ladder segment includes a foot ladder frame and a handrail. The handrail is formed by connecting spaced vertical bars and spaced horizontal bars, and the lower end of the vertical bars is connected to the foot ladder frame.

[0014] Furthermore, a second fixing pin or a second connecting bolt is provided at the interlocking joint to prevent the interlocking joint from falling off.

[0015] Furthermore, the lower end of the steel ladder is fitted with a length adjustment rod, which slides together with the steel ladder, and a third fixing pin or a third connecting bolt is provided in contact with the rod.

[0016] The beneficial effects of this utility model are:

[0017] 1. The support frame of this utility model is equipped with wheels at the lower end for easy movement, and a railing is installed at the upper end of the support frame for good protection, preventing workers from falling due to mistakes, thus ensuring good safety.

[0018] 2. After the support frame is moved into place, the adjusting screw is adjusted so that the lower end of the adjusting screw contacts the ground, causing the traveling wheels to leave the ground and the support frame to be positioned in place, preventing accidental movement.

[0019] 3. The support frame and steel ladder of this utility model adopt a combined structure, which can change the overall height, thus making it suitable for the installation of power equipment at different heights. A pivot pin is set at the contact point to increase the firmness of the connection.

[0020] 4. The lower end of the steel ladder of this utility model is fitted with a length adjustment rod, which can make fine adjustments to the length of the steel ladder to achieve the purpose of precise adjustment.

[0021] 5. This utility model has a reasonable design, is quick to move, provides strong support, and has good protective effect. It is widely applicable to the installation of various types of power equipment, easy to promote and implement, and has good economic benefits. Attached Figure Description

[0022] Figure 1 is a structural diagram of a fence-type steel ladder device for the installation of power equipment;

[0023] Figure 2 is a left view of a fence-type steel ladder device for installing power equipment shown in Figure 1;

[0024] Figure 3 is an enlarged cross-sectional view of the structure at point A in Figure 1;

[0025] Figure 4 is an enlarged side sectional view of the structure at point A in Figure 1;

[0026] Figure 5 is an enlarged cross-sectional view of the structure at point B in Figure 1;

[0027] Figure 6 is an enlarged cross-sectional view of the structure at point C in Figure 1. Detailed Implementation

[0028] Example 1: Refer to Figures 1-6. In the figures, 1-walking wheel, 2-adjusting screw, 3-bottom support frame, 4-middle support frame, 5-top support frame, 6-fixing sleeve, 7-fence, 8-hinged seat, 9-top steel ladder, 10-middle steel ladder, 11-bottom steel ladder, 12-length adjusting rod, 13-first fixed axle pin, 14-second fixed axle pin, 15-third fixed axle pin.

[0029] A fence-type steel ladder device for installing power equipment includes a support frame and a steel ladder. The support frame has wheels 1 at its bottom and a fence 7 around its top. The upper end of the steel ladder is rotatably connected to the top of the support frame (the rotatable structure includes a hinge seat 8 and a hinge shaft; the hinge seat 8 is fixed to the support frame, and the upper end of the steel ladder has a shaft hole through which the hinge shaft passes and connects to the hinge seat 8). An opening is provided in the fence 7 corresponding to the upper end of the steel ladder to facilitate worker access. Adjusting screws 2 are evenly distributed at the bottom of the support frame (the support frame has adjusting nuts, and the adjusting screws 2 pass through the adjusting nuts, engaging with each other; there are at least four adjusting screws and nuts, distributed at the four corners of the bottom of the support frame). Adjusting the adjusting screws 7 allows the wheels 1 to leave the ground, preventing accidental movement and improving the accuracy and safety of the workers.

[0030] Preferred solution: A gate (not shown in the figure) is provided at the opening of the fence 7. One side of the gate is rotatably connected to the opening side of the fence 7, and the other side of the gate is equipped with a lock, which is a bolt or padlock. When the staff enters, the gate is opened and locked after entering to prevent the staff from falling.

[0031] Preferred solution: The fence 7 is composed of spaced vertical bars and spaced horizontal bars connected to each other. The lower end of the vertical bar is fixedly connected to the top of the support frame, or the vertical bar is inserted into the fixing sleeve 6 fixed to the top of the support frame, which can be disassembled.

[0032] Preferred solution: The support frame adopts a split connection structure, including a bottom support frame 3, at least one middle support frame 4, and a top support frame 5. The bottom support frame 3 and the adjacent middle support frame 4 are connected by a plug-in connection structure, as are two adjacent middle support frames 4, and the top support frame 5 is connected by a plug-in connection structure to the adjacent middle support frame 4. A first fixing pin 13 or a first connecting bolt is provided at each plug-in joint to prevent the joint from falling off.

[0033] The central support frame 4 can be a rod-shaped structure or a truss structure. Using a rod-shaped structure is simple, easy to implement, and has a lower cost, while using a truss structure provides better structural strength.

[0034] Preferred solution: The steel ladder adopts a split connection structure, including a bottom steel ladder 11, at least one middle steel ladder 10, and a top steel ladder 9. The bottom steel ladder 11 and the adjacent middle steel ladder 10 are connected by a plug-in connection structure, as are two adjacent middle steel ladders 10, and the top steel ladder 9 and the adjacent middle steel ladder 10. Each steel ladder segment includes a footboard and a handrail. The handrail is formed by connecting spaced vertical bars and spaced horizontal bars, with the lower end of the vertical bars connected to the footboard. A second fixing pin 14 or a second connecting bolt is provided at the plug-in joints to prevent the joints from falling off.

[0035] Preferred solution: The lower end of the steel ladder is fitted with a length adjusting rod 12, which slides together with the steel ladder. A third fixing pin 15 or a third connecting bolt is also provided in contact with the rod. When adding or removing the middle steel ladder 10 is insufficient to form a suitable steel ladder length, the extension length of the length adjusting rod 12 can be adjusted to achieve a suitable steel ladder length. Of course, multiple through holes are provided on the length adjusting rod 12 at intervals, or multiple through holes are provided at intervals at the lower end of the steel ladder to achieve the purpose of multi-level adjustment of the length adjusting rod 12.

[0036] During use, the height and length of the support frame and steel ladder are adjusted according to the height of the electrical equipment. The support frame is moved to the installation position of the electrical equipment using the wheels 1. To fix the support frame in place, the adjusting screw 2 is adjusted to lift the wheels 1 off the ground. Workers ascend the steel ladder step by step until they enter the enclosure 7 at the top of the support frame to install the electrical equipment. The enclosure 7 improves worker safety. After completion, workers descend the steel ladder, reverse the adjustment screw 2, and the wheels 1 re-establish contact with the ground, allowing them to move to the next work station to continue working.

[0037] Example 2: This example is basically the same as Example 1, and the similarities will not be repeated. The difference is that the support frame and steel ladder adopt an integral structure. This method is suitable for the installation requirements of power equipment of a certain height, while simplifying the structure and reducing production costs.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications made based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A caged steel ladder arrangement for electrical equipment installation comprising a support frame and a steel ladder, characterised in that: The support frame is equipped with wheels at the bottom and a fence around the top. The upper end of the steel ladder is rotatably connected to the top of the support frame. The fence corresponding to the upper end of the steel ladder has an opening to facilitate workers to enter and exit. Adjusting screws are evenly distributed at the bottom of the support frame. Adjusting the adjusting screws can lift the wheels off the ground.

2. A fence-type steel ladder device for power equipment installation according to claim 1, characterized in that: The fence has an opening with a gate. One side of the gate is rotatably connected to the opening of the fence, and the other side of the gate is connected to the opening of the fence with a lock, which is a bolt or a padlock.

3. A fence-type steel ladder device for installing power equipment according to claim 1, characterized in that: The fence is composed of spaced vertical bars and spaced horizontal bars connected to each other. The lower end of the vertical bar is fixedly connected to the top of the support frame, or the vertical bar is inserted into a fixed sleeve fixed to the top of the support frame, allowing for disassembly and assembly.

4. A fence-type steel ladder device for power equipment installation according to claim 1, characterized in that: The support frame adopts a split connection structure, including a bottom support frame, at least one middle support frame and a top support frame. The bottom support frame and the adjacent middle support frame are connected by a plug-in connection structure, the adjacent middle support frames are connected by a plug-in connection structure, and the top support frame is connected by a plug-in connection structure to the adjacent middle support frame.

5. A fence-type steel ladder device for installing power equipment according to claim 4, characterized in that: The interlocking joints are equipped with a first fixing pin or a first connecting bolt to prevent the interlocking joints from falling off.

6. A fence-type steel ladder device for installing power equipment according to claim 1, characterized in that: The steel ladder adopts a split connection structure, including a bottom steel ladder, at least one middle steel ladder, and a top steel ladder. The bottom steel ladder and the adjacent middle steel ladder are connected by a plug-in connection structure, the adjacent middle steel ladders are connected by a plug-in connection structure, and the top steel ladder and the adjacent middle steel ladder are connected by a plug-in connection structure. Each steel ladder segment includes a foot ladder frame and a handrail. The handrail is formed by connecting spaced vertical bars and spaced horizontal bars, and the lower end of the vertical bars is connected to the foot ladder frame.

7. A caged steel ladder arrangement for electrical equipment installation according to claim 6, characterised in that: A second fixing pin or a second connecting bolt is provided at the interlocking joint to prevent the interlocking joint from falling off.

8. A fence-type steel ladder device for power equipment installation according to claim 1, characterized in that: The lower end of the steel ladder is fitted with a length adjustment rod, which slides together with the ladder, and a third fixing pin or a third connecting bolt is provided in contact with the ladder.

Images