Lifting device for maintenance of subway substation equipment

Abstract

The utility model discloses a lifting device for maintenance of subway substation equipment, which comprises a jack, a steel pipe, a screw and a jacking, the steel pipe is vertically arranged, and the bottom end of the steel pipe is detachably connected to the top end of a telescopic rod of the jack; the screw is slidably connected to an inner cavity of the steel pipe; the jacking is fixed to the end face, away from the steel pipe, of the screw. The jacking support can support a hanging bracket of equipment to be lifted, the height of the lifting device can be roughly adjusted through sliding of the screw rod relative to the steel pipe so that the lifting device can meet the height requirement of the equipment, the equipment and the hanging bracket can be integrally lifted through the jack, and the equipment in a subway substation can be lifted in a limited space and site. And installation of the equipment bottom insulation cushion block is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of subway substation maintenance, and more specifically to a lifting device used for subway substation equipment maintenance. Background Art

[0002] During the long-term operation of the subway, rust and dirt accumulated between the equipment and the insulation board in the substation, which could not be cleaned during daily maintenance. The thickness of the insulation board on site was 5mm, and the rust was close to the channel steel, resulting in low frame insulation. It is known that adding insulation pads between the equipment and the insulation board has a more obvious effect. In order to facilitate and quickly install the insulation pads, the edge of the equipment needs to be raised by one centimeter on site. For this reason, we conducted research on existing technologies.

[0003] Although the crowbar has a simple structure and is easy to operate, its lifting capacity is limited and it is incapable of precisely controlling the lifting position. Thirdly, since the bottom of the cabinet is not a solid structure, the use of the crowbar also has considerable uncertainty and safety hazards, which can easily cause deformation of the equipment and damage to the floor tiles. In addition, the crowbar requires a large amount of manpower during use. For the lifting of large equipment, it is easy to cause damage to the equipment and fatigue of the operator, affecting work efficiency and safety. Although the pulley system can assist in lifting by changing the direction of the force, its stability is affected by the mass of the rope and pulley, and it is relatively difficult to install and adjust in a small or complex space. In the substation environment, the design of the pulley system was not considered at the beginning of construction, so the ceiling heights in different substations are significantly different. It is extremely difficult to install the pulley system later, and the pulley system may also be difficult to perform at its best due to space limitations. As a heavy lifting equipment, the crane has a strong lifting capacity and high work efficiency. However, its large size and complex installation process make it difficult to move and deploy flexibly inside the substation. In addition, cranes require professional operators to operate and have a large impact on the surrounding environment, which may affect sensitive equipment in the substation. Forklifts are widely used in logistics and warehousing. Their mobility and flexibility make them excellent in flat transportation and short-distance lifting. However, the lifting height and load capacity of forklifts usually cannot meet the needs of cabinet lifting in substations. At the same time, the tires and body structure of forklifts may slip on the hard ground of substations, affecting operational stability.

[0004] Although these traditional lifting devices are generally capable of performing lifting tasks, their limitations become particularly evident in special environments such as subway substations.

[0005] Therefore, how to provide a lifting device for maintenance of subway substation equipment to meet the requirements of high precision, high safety and minimal interference to the equipment in the working environment of the subway substation and reduce the potential risks to the substation equipment is an urgent problem that technical personnel in this field need to solve. Utility Model Content

[0006] In view of this, the utility model provides a lifting device for maintenance of subway substation equipment, aiming to solve the above technical problems.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A lifting device for maintenance of subway substation equipment, comprising:

[0009] jack,

[0010] A steel pipe, the steel pipe is arranged vertically and the bottom end of the steel pipe is detachably connected to the top end of the telescopic rod of the jack;

[0011] A screw rod, the screw rod being slidably connected to the inner cavity of the steel pipe;

[0012] A jacking support is fixed to the end face of the screw rod away from the steel pipe.

[0013] The beneficial effect of the above technical solution is that the jacking can support the hanger of the equipment to be lifted, and the height of the lifting device can be roughly adjusted by sliding the screw relative to the steel pipe to meet the height requirement of the equipment. The equipment and the hanger can be lifted as a whole using a jack. The equipment in the subway substation can be lifted in a limited space and site, which facilitates the installation of the insulating pads at the bottom of the equipment.

[0014] Preferably, it further comprises an adjusting handle, the adjusting handle is provided on the outer wall of the top end of the steel pipe and is rotatably connected thereto, the inner wall of the adjusting handle is provided with an internal thread; the screw rod sequentially penetrates the adjusting handle and the inner cavity of the steel pipe from top to bottom, and the rod wall thereof is screwed to the inner wall of the adjusting handle. The rotation of the adjusting handle can realize the upward and downward extension of the screw rod in the inner cavity of the steel pipe.

[0015] Preferably, a bearing is fixed to the outer wall of the top of the steel pipe, the bottom of the adjusting handle is sleeved on the outer ring of the bearing, and the inner wall of the top is provided with the internal thread. The adjusting handle realizes its rotation ability through the bearing, and the adjusting handle drives the screw to slide upward or downward along the inner cavity of the steel pipe during the rotation process.

[0016] Preferably, the bottom end of the steel pipe is fastened to the top end of the telescopic rod of the jack by an anti-drop cap, which facilitates the assembly and disassembly of the steel pipe and the jack and improves the working efficiency.

[0017] Preferably, it also includes a longitudinal tube, the number of the jacks is four and they are symmetrically arranged along the front and rear sides of the distribution cabinet, the number of the longitudinal tubes is two and they are arranged in parallel, the two longitudinal tubes are respectively inserted into the lifting rings on the left and right sides of the top surface of the distribution cabinet and their outer walls are in contact with the top support. The longitudinal tube is inserted into the lifting ring on the top of the distribution cabinet and is in contact with the top support. When the jack is lifted, the overall structure formed by the steel pipe, the screw rod and the top support will be lifted, which will lift the longitudinal tube and the distribution cabinet as a whole. The setting of four jacks can achieve unilateral lifting or overall lifting, and the operation is more flexible and changeable.

[0018] Preferably, the jacking bracket includes a fixing block and a U-shaped seat, the bottom surface of the fixing block is fixed to the top surface of the screw, the U-shaped seat is fixed to the top surface of the fixing block, and the outer wall of the longitudinal tube is clamped in the U-shaped groove of the U-shaped seat. The U-shaped cavity of the U-shaped seat can clamp the equipment hanger to prevent instability caused by the sliding of the longitudinal tube during the lifting process of the equipment.

[0019] Preferably, it further comprises a transverse tube, wherein the number of the transverse tubes is two and they are arranged in parallel, and the two transverse tubes are respectively inserted into the lifting rings on the front and rear sides of the top face of the power distribution cabinet, and the two transverse tubes and the two longitudinal tubes are arranged perpendicular to each other and the outer walls are abutted to form a cross-shaped hanger. The transverse tube can reinforce the longitudinal tube to prevent it from bending and deforming, and at the same time can ensure uniform force during the lifting process of the power distribution cabinet, and prevent deformation or damage to the internal structure of the power distribution cabinet due to excessive local force during the lifting process.

[0020] Preferably, the longitudinal tube and the transverse tube are both connected to the lifting ring via a retaining spring, so as to prevent the transverse rod or the longitudinal tube from sliding during the lifting process and causing accidents.

[0021] It can be seen from the above technical scheme that compared with the prior art, the utility model discloses a lifting device for maintenance of subway substation equipment. The lifting device is used to lift the distribution station equipment in a "palanquin" manner, thereby reducing labor intensity, and can achieve unilateral lifting or overall lifting. The lifting method is more free and flexible, and the installation and disassembly are convenient and the manufacturing is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of the lifting device provided by the utility model;

[0024] Figure 2This is a front view of the installation of the lifting device provided by the utility model;

[0025] Figure 3 A side view of the installation of the lifting device provided by the utility model;

[0026] Figure 4 This is a top view of the installation of the lifting device provided by the utility model.

[0027] in,

[0028] 1- jack; 2- anti-drop cap; 3- steel pipe; 4- adjustment handle; 5- screw rod; 6- top support; 7- vertical pipe; 8- distribution cabinet; 9- horizontal pipe. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See attached Figures 1 to 4 The utility model discloses a lifting device for maintenance of subway substation equipment, comprising:

[0031] Jack 1,

[0032] The steel pipe 3 is arranged vertically and its bottom end is detachably connected to the top of the telescopic rod of the jack 1;

[0033] The screw rod 5 is slidably connected to the inner cavity of the steel pipe 3;

[0034] The jacking support 6 is fixed on the end surface of the screw rod 5 away from the steel pipe 3 .

[0035] In this embodiment, the sliding of the screw is achieved through the adjusting handle 2. The adjusting handle 4 is sleeved on the outer wall of the top end of the steel pipe 3 and is rotatably connected thereto. The inner wall of the adjusting handle 4 is provided with an internal thread. The screw 5 penetrates the inner cavity of the adjusting handle 4 and the steel pipe 3 from top to bottom in sequence, and its rod wall is screwed to the inner wall of the adjusting handle 4.

[0036] The adjusting handle comprises a rotating sleeve and a rotating handle. The bottom end of the rotating sleeve is sleeved on the outer wall of the top end of the steel pipe. The handle is symmetrically fixed on the outer wall of the rotating sleeve. The inner wall of the top end of the rotating sleeve is provided with an internal thread.

[0037] When the adjusting handle is turned, the outer wall of the screw is screwed with the internal thread of the adjusting handle, so the adjusting handle and the screw form a ball screw pair, which can drive the screw to slide up and down along the inner cavity of the steel pipe while rotating.

[0038] In order to further optimize the above technical solution and better realize the rotation of the adjusting handle, a bearing is fixed to the outer wall of the top end of the steel pipe 3, the bottom end of the adjusting handle 4 is sleeved on the outer ring of the bearing, and an internal thread is opened on the inner wall of the top end.

[0039] In order to further optimize the above technical solution, the bottom end of the steel pipe 3 and the top end of the telescopic rod of the jack 1 are fastened by an anti-drop cap 2. The anti-drop cap can fasten the steel pipe and the telescopic rod of the jack, making it easy to disassemble, and prevent the steel pipe from falling off during use, ensuring that the axis of the steel pipe coincides with the axis of the telescopic rod of the jack, and ensuring the verticality of the lifting device.

[0040] There is an anti-drop cap design between the jack and the steel pipe. During operation, you only need to operate the jack to easily lift the equipment without much effort, which greatly reduces the labor intensity. In addition, the combination of the jack, steel pipe and screw can accurately control the lifting distance. There is an adjustment handle with a bearing in the middle. The screw can be adjusted during rotation to facilitate coarse height adjustment.

[0041] In this embodiment, it also includes a longitudinal pipe 7. The number of jacks 1 is four and they are symmetrically arranged along the front and back sides of the distribution cabinet 8. The number of longitudinal pipes 7 is two and they are arranged in parallel. The two longitudinal pipes 7 are respectively inserted into the lifting rings on the left and right sides of the top surface of the distribution cabinet 8 and their outer walls are in contact with the top support 6.

[0042] The length of the longitudinal pipe exceeds the top surface of the distribution cabinet. Four lifting devices are located in front and behind the distribution cabinet to act as "palanquin bearers". The longitudinal pipe is equivalent to the lifting rod of the sedan chair. The lifting device and the distribution cabinet form a "palanquin bearer" to lift the distribution cabinet.

[0043] In order to further optimize the above technical solution and prevent instability during use, the top support 6 includes a fixed block and a U-shaped seat, the bottom surface of the fixed block is fixed to the top surface of the screw 5, the U-shaped seat is fixed to the top surface of the fixed block, and the outer wall of the longitudinal tube 7 is clamped in the U-shaped groove of the U-shaped seat.

[0044] The U-shaped seat clamps the longitudinal pipe to fix it and prevent it from displacement. During the lifting process, the cabinet body and internal components are not prone to deformation or damage caused by excessive local force.

[0045] In order to further optimize the above technical solution, it also includes transverse tubes 9. There are two transverse tubes 9 and they are arranged in parallel. The two transverse tubes 9 are respectively inserted into the lifting rings on the front and rear sides of the top of the distribution cabinet 8. The two transverse tubes 9 and the two longitudinal tubes 7 are arranged perpendicular to each other and the outer walls are abutted to form a criss-cross shape hanger.

[0046] The criss-cross hanger ensures that the distribution cabinet is evenly stressed during the lifting process, which not only improves the safety of the operation, but also ensures the stability of the cabinet and steel pipe during the lifting process, avoiding accidents caused by unbalanced force.

[0047] In order to further optimize the above technical solution and further improve the stability of the distribution cabinet during lifting, the longitudinal pipe 7 and the transverse pipe 9 are both connected to the lifting ring through a retaining spring.

[0048] The utility model can accurately lift the power distribution cabinet to a specified height according to actual needs. It can easily cope with single-sided or multi-sided lifting. The detachable mode of the jack and the steel pipe facilitates the transportation and storage of the lifting device. The lifting device can be quickly assembled and disassembled before and after the operation, which improves the working efficiency. The components are easy to carry, thereby greatly reducing the space occupied by the equipment and reducing the transportation cost.

[0049] The flexibility of this design provides great convenience for the maintenance work of subway substations. Whether working inside or outside the substation, it can be easily handled. It perfectly meets the special requirements of the substation working environment, greatly improves work efficiency, and at the same time ensures extremely high safety.

[0050] The lifting device provided by the utility model has a simple structure, and the manufacturing process does not require complicated process flow, and even does not require designated equipment and tools, thereby reducing manufacturing costs; at the same time, the detachability allows the device to quickly replace damaged parts when it is damaged or needs repair, without replacing the entire device, further saving maintenance costs; in addition, because the device is relatively easy to assemble, only two people are required to operate the device during the lifting process to quickly lift the device to a specified height, and the efficient working performance improves the operating efficiency, shortens the operating time, reduces the number of operators, and thus saves labor. The use of this device greatly improves the safety of operations. Through uniform force, precise control, and no impact on the surrounding environment and equipment, it effectively reduces the risks in the operation process and ensures the life safety of operators. It plays an obvious role in the process of handling insulation problems in the power supply system frame of the rail transit industry, and can be extended to equipment failure handling in similar environments, with significant social benefits.

[0051] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0052] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lifting device for maintenance of subway substation equipment, characterized in that: include: Jack (1), A steel pipe (3), the steel pipe (3) is arranged vertically and the bottom end of the steel pipe (3) is detachably connected to the top end of the telescopic rod of the jack (1); A screw rod (5), the screw rod (5) being slidably connected to the inner cavity of the steel pipe (3); A jacking support (6) is fixed to the end surface of the screw rod (5) away from the steel pipe (3).

2. A lifting device for maintenance of subway substation equipment according to claim 1, characterized in that: It also comprises an adjusting handle (4), the adjusting handle (4) being sleeved on the outer wall of the top end of the steel pipe (3) and being rotatably connected thereto, the inner wall of the adjusting handle (4) being provided with an internal thread; the screw rod (5) passing through the inner cavity of the adjusting handle (4) and the steel pipe (3) in sequence from top to bottom, and the rod wall thereof being screwed to the inner wall of the adjusting handle (4).

3. A lifting device for maintenance of subway substation equipment according to claim 2, characterized in that: A bearing is fixed to the outer wall of the top end of the steel pipe (3); the bottom end of the adjustment handle (4) is sleeved on the outer ring of the bearing, and the inner wall of the top end is provided with the internal thread.

4. A lifting device for maintenance of subway substation equipment according to claim 1, characterized in that: The bottom end of the steel pipe (3) is fastened to the top end of the telescopic rod of the jack (1) via an anti-drop cap (2).

5. A lifting device for maintenance of subway substation equipment according to any one of claims 1 to 4, characterized in that: It also includes longitudinal tubes (7), the number of the jacks (1) is four and they are symmetrically arranged along the front and rear sides of the power distribution cabinet (8), the number of the longitudinal tubes (7) is two and they are arranged in parallel, the two longitudinal tubes (7) are respectively inserted into the lifting rings on the left and right sides of the top surface of the power distribution cabinet (8) and their outer walls are in contact with the top support (6).

6. A lifting device for maintenance of subway substation equipment according to claim 5, characterized in that: The top support (6) comprises a fixed block and a U-shaped seat, the bottom surface of the fixed block is fixed to the top surface of the screw rod (5), the U-shaped seat is fixed to the top surface of the fixed block, and the outer wall of the longitudinal tube (7) is clamped in the U-shaped groove of the U-shaped seat.

7. A lifting device for maintenance of subway substation equipment according to claim 6, characterized in that: It also includes a transverse tube (9), the number of which is two and which are arranged in parallel, the two transverse tubes (9) are respectively inserted into the lifting rings on the front and rear sides of the top of the power distribution cabinet (8), and the two transverse tubes (9) and the two longitudinal tubes (7) are arranged perpendicular to each other and the outer walls are abutted to form a cross-shaped hanger.

8. A lifting device for maintenance of subway substation equipment according to claim 7, characterized in that: The longitudinal tube (7) and the transverse tube (9) are both connected to the lifting ring via a retaining spring.

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