An installation device for a high-voltage cabinet of a power engineering

Abstract

The application provides a kind of installation device of power engineering high voltage cabinet, it relates to the field of power high voltage cabinet installation.The installation device of power engineering high voltage cabinet, including equipment main body frame, power component, stable carrying unit and hoisting unit, power component is installed at the bottom of equipment main body frame for supporting and transferring equipment main body frame, hoisting unit is installed at the top of equipment main body frame.The installation device of power engineering high voltage cabinet, two equipment are used simultaneously, can be used power component is close to the two sides of power high voltage cabinet, using stable carrying unit can hold power cabinet from below, and also can exert pressure on the side to protect the side of high voltage cabinet, cooperate with the hoisting of upper side, can realize that upper, middle and lower all protect power cabinet, so it is more stable when transferring, because multiple sliding type lifting devices are arranged on the upper side, therefore, single lifting lug, multiple lifting lug power cabinet is also applicable, therefore, stability is better, and transferring power cabinet is safer.

Description

Technical Field

[0001] This invention relates to the field of high-voltage switchgear installation, specifically to an installation device for high-voltage switchgear in power engineering. Background Technology

[0002] During the construction of power transmission and distribution projects, a large number of high-voltage switchgear and transformer boxes are required. In the specific installation process, they need to be installed on the mounting frame and fixed with bolts. In the traditional installation process, the high-voltage switchgear is manually moved to the mounting frame and kept at a certain height until the bolts are fixed before the workers can loosen the high-voltage switchgear. At present, existing technologies not only use manual handling to install power switchgear, but also use hoisting, clamping and other methods.

[0003] For example, existing patent application number CN202411950124.6 discloses a detachable portable gantry crane, relating to the field of power construction equipment technology, aiming to improve the problem of high pulling power and significant safety hazards associated with manual handling of protective cabinets. A detachable portable gantry crane includes two sets of legs and a crossbeam mounted on top of the two sets of legs. Several sets of directional wheels for movement are provided at the bottom of the legs. A lifting assembly is provided on the crossbeam for lifting goods. A connecting assembly is provided between the crossbeam and each set of legs for fixing the crossbeam and legs together.

[0004] The above-mentioned method only uses traction ropes and hooks to lift the power cabinet. During the transfer, the power cabinet is prone to shaking, which may cause danger. In addition, some power cabinets only have simple lifting rings installed in the middle of the top, which is not reliable in actual lifting. At present, the most stable method is still to move it by hand.

[0005] Alternatively, prior art application number CN202221004836.5 discloses an installation device for a high-voltage switchgear in power engineering, including a base. A fixed frame is vertically fixed to the upper rear side of the base. A placement mechanism is provided at the front end of the fixed frame. The placement mechanism includes a placement plate. A sliding groove is opened in the middle of the interior of the placement plate. A bidirectional threaded rod is rotatably connected inside the sliding groove. Clamping mechanisms are provided on both the front and rear sides of the sliding groove. Multiple slots are opened on both sides of the sliding groove inside the placement plate. Support rollers are rotatably connected inside each slot.

[0006] Although the aforementioned installation equipment has a certain degree of stability during use and achieves a certain degree of elevation effect for the high-voltage cabinet through the placement mechanism, its clamping mechanism is located on the surface of the placement plate, meaning that the clamping mechanism can only clamp the bottom of the high-voltage cabinet. Therefore, in actual use, since there are no effective clamping components on the upper part of the high-voltage cabinet, which is relatively tall, the high-voltage cabinet is prone to tilting when it shakes during the movement of the equipment, resulting in low safety when moving the high-voltage cabinet. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides an installation device for high-voltage switchgear in power engineering, which solves the problems mentioned in the background section.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solution: an installation device for a high-voltage switchgear in power engineering, comprising a main equipment frame, a power component, a stable handling unit, and a hoisting unit. The power component is installed at the bottom of the main equipment frame for supporting and transporting the main equipment frame, and the hoisting unit is installed at the top of the main equipment frame.

[0009] The stable transport unit includes a rectangular beam frame and two sets of protective supports. Both sets of protective supports are installed on the rectangular beam frame and can slide and adjust their positions along the Y-axis of the coordinate system. The rectangular beam frame is installed on the main frame of the equipment, and the main frame of the equipment can control the rectangular beam frame to slide and adjust its position along the X and Z axes of the coordinate system.

[0010] The hoisting unit includes a support beam installed at the top of the main frame of the equipment and multiple sliding hoists installed on the support beam. The support beam can slide and adjust its position along the Z-axis of the coordinate system along the main frame of the equipment. The sliding hoists can slide and adjust their position along the Y-axis of the coordinate system along the support beam. Any one of the sliding hoists can also be used to stabilize the upper end of the rectangular beam frame.

[0011] Preferably, the main frame of the equipment includes two longitudinal reinforcing beams, which are L-shaped in shape. The bottom of the two longitudinal reinforcing beams is fixed by connectors. A hydraulic cylinder A is fixedly installed on one side of the upper end of either longitudinal reinforcing beam. The supporting crossbeam is slidably connected to the two longitudinal reinforcing beams, and the output shaft of the hydraulic cylinder A is fixed to the end of the supporting crossbeam.

[0012] Two support arms are fixedly installed in the middle of any longitudinal reinforcement beam. A cross arm is slidably installed on each support arm. The cross arm slides along the X-axis of the coordinate system. A hydraulic cylinder B is fixedly installed on the lower support arm for pushing and pulling the cross arm. A rectangular beam frame is installed at the end of multiple cross arms away from the longitudinal reinforcement beam and can slide relative to it along the Z-axis of the coordinate system.

[0013] A hydraulic cylinder C is fixedly installed at the bottom end of each longitudinal reinforcement beam to lift the rectangular beam frame.

[0014] Preferably, a slide is fixedly installed at the end of the cross arm away from the longitudinal reinforcing beam, and the two vertical ends of the rectangular beam frame are slidably connected to the slide. An L-shaped top plate is fixedly installed at the bottom of the two vertical ends of the rectangular beam frame. The L-shaped top plate is located on the output shaft of the hydraulic cylinder C. When the rectangular beam frame is away from the longitudinal reinforcing beam, the L-shaped top plate always remains on the output shaft of the hydraulic cylinder C.

[0015] Preferably, a through-type long groove is provided on the horizontal end above the rectangular beam frame, and the hook of the sliding hoist can be hooked into the long groove and tighten the rectangular beam frame.

[0016] Preferably, the sliding hoist includes a pulley block and a ratchet hoist installed at the bottom of the pulley block. The pulley block is installed above and slidably connected to the support beam, and the ratchet hoist is located below the support beam.

[0017] Preferably, each of the protective brackets has a shovel plate fixedly installed at its bottom end, and a protective pad is provided on the inner side of the protective bracket.

[0018] Preferably, the supporting beam is located on one side of the longitudinal reinforcing beam, and an extension triangle is fixedly installed at each end of the supporting beam. The other end of the extension triangle is installed on the longitudinal reinforcing beam and slidably connected to it. The output shaft of the hydraulic cylinder A is fixed to the extension triangle.

[0019] Preferably, the power assembly includes a power box, a hydraulic cylinder D, and a universal drive wheel set. The power box is installed between the bottom ends of the two longitudinal reinforcement beams and is used for counterweight and to provide power to the hydraulic cylinder. There are two sets of hydraulic cylinders D, which are installed on both sides of the power box and correspond to the two longitudinal reinforcement beams respectively. The universal drive wheel set is installed on the output shaft of the hydraulic cylinder D. When the hydraulic cylinder D extends, it can ground the universal drive wheel set and lift the longitudinal reinforcement beam off the ground.

[0020] Preferably, the omnidirectional drive wheel assembly includes a wheel frame mounted on a hydraulic cylinder D and a hydraulic drive wheel capable of rotating at a 90-degree angle relative to the wheel frame.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The installation device for the high-voltage switchgear in this power project uses two devices simultaneously. The power components can be used to approach both sides of the high-voltage switchgear together, and the stable handling unit can support the switchgear from below. It can also apply pressure to the sides to protect the sides of the switchgear. Combined with the hoisting from above, the switchgear can be protected from top to bottom, making it more stable during transportation.

[0023] The installation device for the high-voltage switchgear in this power project is equipped with multiple sliding hoists, making it suitable for both single-lug and multi-lug power switchgear. The remaining sliding hoists can also be used to hang the upper end of the rectangular beam frame, keeping the upper part of the rectangular beam frame under load. This allows for both lifting of the high-voltage switchgear and lifting of the rectangular beam frame. The rectangular beam frame is subjected to top pressure, upward tension, and lateral compression, resulting in better stability and safer transport of the power switchgear.

[0024] The installation device for the high-voltage switchgear in this power project can first lift the switchgear, then insert the protective bracket to transport it. Even when facing a switchgear with a seamless bottom, it can be lifted stably.

[0025] The installation device for the high-voltage switchgear in this power project is equipped with a power component. When the two devices are used together, they can simultaneously exert a force to move towards the power switchgear. During transportation, the difference in speed between the two electric drive wheels can better hold the power switchgear in place and facilitate relocation. Even if the width of the power switchgear is different, it will not be affected. This overcomes the shortcomings of existing transportation equipment that requires sufficient width to accommodate power switchgear of different specifications. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structural state of the present invention;

[0027] Figure 2 This is a front view of the structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the second structural state of the present invention;

[0029] Figure 4 This is a schematic diagram of the three structural states of the present invention;

[0030] Figure 5 For the present invention Figure 4 Enlarged view of the structure at point A in the middle;

[0031] Figure 6 This is a schematic diagram of the structure of the stable transport unit of the present invention;

[0032] Figure 7 For the present invention Figure 6 Enlarged view of the structure at point B;

[0033] Figure 8 This is a schematic diagram of the hoisting unit and supporting beam of the present invention;

[0034] Figure 9 This is a partial structural diagram of the hoisting unit of the present invention.

[0035] In the diagram: 1. Main frame of the equipment; 101. Longitudinal reinforcing beam; 102. Hydraulic cylinder A; 103. Support arm; 104. Cross arm; 105. Hydraulic cylinder B; 106. Hydraulic cylinder C; 107. Slide table; 108. L-shaped top plate; 2. Power assembly; 201. Power box; 202. Hydraulic cylinder D; 203. Universal drive wheel set; 2031. Wheel frame; 2032. Hydraulic drive wheel; 3. Stable handling unit; 301. Rectangular beam frame; 302. Protective bracket; 303. Long groove; 304. Protective pad; 305. Shovel plate; 4. Lifting unit; 401. Support beam; 402. Sliding hoist; 4021. Pulley block; 4022. Ratchet hoist; 403. Extension tripod. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0037] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0038] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0040] like Figure 1-9As shown, an installation device for a high-voltage switchgear in power engineering includes a main equipment frame 1, a power component 2, a stable handling unit 3, and a hoisting unit 4. The power component 2 is installed at the bottom of the main equipment frame 1 to support and transport the main equipment frame 1, and the hoisting unit 4 is installed at the top of the main equipment frame 1.

[0041] The stable handling unit 3 includes a rectangular beam frame 301 and two sets of protective supports 302. Both sets of protective supports 302 are installed on the rectangular beam frame 301 and can slide and adjust their positions along the Y-axis of the coordinate system. The rectangular beam frame 301 is installed on the main frame 1 of the equipment. The main frame 1 of the equipment can control the rectangular beam frame 301 to slide and adjust its position along the X and Z axes of the coordinate system.

[0042] The hoisting unit 4 includes a support beam 401 installed at the top of the main frame 1 and multiple sliding hoists 402 installed on the support beam 401. The support beam 401 can slide along the Z-axis of the coordinate system to adjust its position along the main frame 1. The sliding hoists 402 can slide along the Y-axis of the coordinate system to adjust their position along the support beam 401. Any one of the sliding hoists 402 can also be used to stabilize the upper end of the rectangular beam frame 301.

[0043] The device is normally used in pairs, but can also be used alone in special circumstances. The rectangular beam frame 301 has a square structure, and the protective bracket 302 is set longitudinally. The protective bracket 302 has sliders installed on the top and bottom of one side. The sliders are locked on the rectangular beam frame 301 and can be manually pulled left and right. Lubricant needs to be applied between the sliders and the rectangular beam frame 301 regularly to ensure that there is enough friction when sliding manually.

[0044] The supporting beam 401 is a linear guide rail structure, and the sliding hoist 402 can slide manually on the linear guide rail. The sliding connection between the two is also coated with grease to maintain low frictional resistance.

[0045] In an optional embodiment, the main frame 1 of the equipment includes two longitudinal reinforcing beams 101, which are generally L-shaped. The bottom of the two longitudinal reinforcing beams 101 is fixed by a connector. A hydraulic cylinder A102 is fixedly installed on one side of the upper end of either longitudinal reinforcing beam 101. The support beam 401 is slidably connected to the two longitudinal reinforcing beams 101, and the output shaft of the hydraulic cylinder A102 is fixed to the end of the support beam 401.

[0046] Two support arms 103 are fixedly installed in the middle of any longitudinal reinforcing beam 101. A cross arm 104 is slidably installed on each support arm 103. The cross arm 104 slides along the X-axis of the coordinate system. A hydraulic cylinder B105 is fixedly installed on the lower support arm 103 for pushing and pulling the cross arm 104. A rectangular beam frame 301 is installed at one end of the multiple cross arms 104 away from the longitudinal reinforcing beam 101 and can slide relative to it along the Z-axis of the coordinate system.

[0047] A hydraulic cylinder C106 is fixedly installed at the bottom end of any longitudinal reinforcing beam 101 to lift the rectangular beam frame 301.

[0048] In this embodiment, the bottom end of the longitudinal reinforcing beam 101 is a right-angle corner structure, and the bottom plane structure of the longitudinal reinforcing beam 101 is in a rough state. When grounded, it can generate strong resistance with the ground, preventing the overall equipment from shifting after being subjected to reaction force.

[0049] The support arm 103 is bolted to the longitudinal reinforcing beam 101, and the cross arm 104 is perpendicular to the support arm 103.

[0050] In an optional embodiment, a slide table 107 is fixedly installed at one end of the cross arm 104 away from the longitudinal reinforcing beam 101. The two vertical ends of the rectangular beam frame 301 are slidably connected to the slide table 107. An L-shaped top plate 108 is fixedly installed at the bottom of each of the two vertical ends of the rectangular beam frame 301. The L-shaped top plate 108 is located on the output shaft of the hydraulic cylinder C106. When the rectangular beam frame 301 is away from the longitudinal reinforcing beam 101, the L-shaped top plate 108 always remains on the output shaft of the hydraulic cylinder C106.

[0051] In this embodiment, both vertical ends of the rectangular beam frame 301 are linear guide rail structures. The two vertical end structures of the rectangular beam frame 301 cooperate with the slide table 107. The L-shaped top plate 108 is fixed to the rectangular beam with bolts. The L-shaped top plate 108 has a certain length. When it is far away from the longitudinal reinforcing beam 101, the L-shaped top plate 108 is always above the hydraulic cylinder C106. Within the movement range of the L-shaped plate, the output force of the hydraulic cylinder C106 is sufficient to lift the rectangular beam frame 301.

[0052] In an optional embodiment, a through-type long slot 303 is provided on the horizontal end above the rectangular beam frame 301, and the hook of the sliding hoist 402 can hook into the long slot 303 and tighten the rectangular beam frame 301.

[0053] In this embodiment, the long groove 303 occupies 80% of the width of the rectangular beam frame 301, and the hook can always be inside the long groove 303 when the sliding hoist 402 slides along the supporting beam 401.

[0054] In an optional embodiment, the sliding hoist 402 includes a pulley block 4021 and a ratchet hoist 4022 mounted on the bottom of the pulley block 4021. The pulley block 4021 is mounted above and slidably connected to the support beam 401, and the ratchet hoist 4022 is located below the support beam 401.

[0055] In this embodiment, the ratchet lifter 4022 can be an electric hoist from the prior art, which can withstand a large pulling force. After it stops rotating, it is not unlocked and it is difficult to pull downward in the opposite direction. The bottom of the pulley block 4021 is also equipped with a force plate, which can withstand the pressure of the pulley block 4021 on the support beam 401, and avoid damage to the wheel axle and bearing of the pulley block 4021.

[0056] In an optional embodiment, a shovel plate 305 is fixedly installed at the bottom of the protective bracket 302, and a protective pad 304 is provided on the inner side of the protective bracket 302.

[0057] In this embodiment, the shovel plate 305 is vertically positioned at the bottom of the protective bracket 302. One end of the shovel plate 305 is relatively thin and can be inserted into the gap at the bottom of the high-voltage switchgear. The protective pad 304 is generally made of rubber, but can also be made of sponge. When in use, the protective bracket 302 is in close contact with the side of the high-voltage switchgear. The protective pad 304 will not scratch the high-voltage switchgear, nor will it cause the high-voltage switchgear to be squeezed and deformed.

[0058] In an optional embodiment, the support beam 401 is located on one side of the longitudinal reinforcement beam 101, and an extension triangle 403 is fixedly installed at each end of the support beam 401. The other end of the extension triangle 403 is installed on the longitudinal reinforcement beam 101 and slidably connected thereto. The output shaft of the hydraulic cylinder A102 is fixed to the extension triangle 403.

[0059] In this embodiment, a slider is fixedly installed at the end of the extended tripod 403 away from the supporting beam 401, and the slider slides on the longitudinal reinforcing beam 101.

[0060] In an optional embodiment, the power assembly 2 includes a power box 201, a hydraulic cylinder D202, and a universal drive wheel set 203. The power box 201 is installed between the bottom ends of two longitudinal reinforcing beams 101 for counterweighting and providing power to the hydraulic cylinder. Two sets of hydraulic cylinders D202 are provided, respectively installed on both sides of the power box 201 and corresponding to the two longitudinal reinforcing beams 101. The universal drive wheel set 203 is installed on the output shaft of the hydraulic cylinder D202. When the hydraulic cylinder D202 is extended, it can ground the universal drive wheel set 203 and lift the longitudinal reinforcing beams 101 off the ground.

[0061] In this embodiment, the power box 201 is equipped with hydraulic components, navigation components, safety components, etc., and also has an electrical system installed inside, which can realize automated and manual control of the equipment operation.

[0062] In an optional embodiment, the omnidirectional drive wheel assembly 203 includes a wheel frame 2031 mounted on a hydraulic cylinder D202 and a hydraulic drive wheel 2032 capable of rotating 90 degrees relative to the wheel frame 2031.

[0063] In this embodiment, the hydraulic drive wheel 2032 is powered by hydraulic components inside the power box. The hydraulic drive wheel 2032 can be controlled to steer, which facilitates turning of the equipment and transfer in complex environments.

[0064] When in use, first move the two devices to the vicinity of the high-voltage switchgear. The universal drive wheel set 203 of the power assembly 2 can be used to transfer the devices, and move them as close as possible to the side of the high-voltage switchgear. Then, if there is a lifting ring on the top of the high-voltage switchgear, move the sliding hoist 402 to the vicinity of the lifting ring, pull down the hook, and hang the hook on the lifting ring. Then start the sliding hoist 402 to tighten the wire rope. Finally, lift the entire power switchgear upwards. If there is a gap at the bottom of the power switchgear that can be inserted, then it is only necessary to tighten the wire rope, and there is no need to lift the power switchgear off the ground.

[0065] Then, the hydraulic cylinder B105 pushes the cross arm 104, causing the rectangular beam frame 301 to move closer to the power cabinet. The protective bracket 302 is then placed against the side of the power cabinet, and the shovel plate 305 at the bottom of the protective bracket 302 is inserted into the gap at the bottom of the power cabinet. Then, the hydraulic cylinder C106 is controlled to lift, and the shovel plate 305 at the bottom of the protective bracket 302 can be used to lift the entire power cabinet off the ground. During this process, the universal drive wheel sets 203 of the two devices can be applied with opposite rotational forces, so that the two devices can always be in contact with the power cabinet and will not be separated from the power cabinet due to external forces. Since the power box 201 is relatively heavy, the hydraulic drive wheel 2032 can be controlled to stop, so the stability is good.

[0066] While hydraulic cylinder C106 lifts the power cabinet, hydraulic cylinder B105 continuously applies top pressure to the rectangular beam frame 301, thus maintaining the clamping of the power cabinet between the two devices in conjunction with the universal drive wheel set 203. Simultaneously with hydraulic cylinder C106 lifting the power cabinet off the ground, the sliding hoist 402 begins lifting the equipment, achieving both upward and downward lifting. At this point, the equipment cannot be immediately moved; the remaining hooks of the sliding hoist 402 are then pulled down and hooked onto the rectangular beam frame 301. After hooking the top, tighten the lifting equipment to make the wire rope taut. Generally, the lifting ring is located at the top of the equipment and is a certain distance from the side. Therefore, after tightening the hook, the upper end of the rectangular beam frame 301 can be pulled to make it close to the power cabinet, so that the sliding hoist 402 and the rectangular beam frame 301 are integrated. At this time, control the hydraulic cylinder A102 to extend, so that the support beam 401 is lifted upward as a whole. With the top pressure of the hydraulic cylinder C106, there is basically no pressure when lifting the power cabinet.

[0067] By controlling the rotation of the hydraulic drive wheel 2032, two devices can work together to transport equipment. The hydraulic drive wheel 2032 can also turn 90 degrees, enabling the equipment to be transported in various ways, such as straight, lateral, and diagonal, making it suitable for almost all installation environments.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0069] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0070] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An installation device for a high-voltage switchgear in power engineering, characterized in that: It includes a main frame (1), a power assembly (2), a stable handling unit (3), and a hoisting unit (4). The power assembly (2) is installed at the bottom of the main frame (1) to support and transport the main frame (1). The hoisting unit (4) is installed at the top of the main frame (1). The stable transport unit (3) includes a rectangular beam frame (301) and two sets of protective supports (302). Both sets of protective supports (302) are installed on the rectangular beam frame (301) and can slide and adjust their positions along the Y-axis of the coordinate system. The rectangular beam frame (301) is installed on the main frame of the equipment (1). The main frame of the equipment (1) can control the rectangular beam frame (301) to slide and adjust its position along the X and Z axes of the coordinate system. The hoisting unit (4) includes a support beam (401) installed at the top of the main frame (1) of the equipment and a plurality of sliding hoists (402) installed on the support beam (401). The support beam (401) can slide along the Z-axis of the coordinate system along the main frame (1) of the equipment and the sliding hoist (402) can slide along the Y-axis of the coordinate system along the support beam (401). Any one of the sliding hoists (402) can also be used to stabilize the upper end of the rectangular beam frame (301). The main frame (1) of the equipment includes two longitudinal reinforcing beams (101). The longitudinal reinforcing beams (101) are L-shaped in general. The bottom of the two longitudinal reinforcing beams (101) is fixed with connectors. A hydraulic cylinder A (102) is fixedly installed on one side of the upper end of any one of the longitudinal reinforcing beams (101). The support beam (401) is slidably connected to the two longitudinal reinforcing beams (101). The output shaft of the hydraulic cylinder A (102) is fixed to the end of the support beam (401). Two support arms (103) are fixedly installed in the middle of any longitudinal reinforcement beam (101). A cross arm (104) is slidably installed on each support arm (103). The cross arm (104) slides along the X-axis of the coordinate system. A hydraulic cylinder B (105) is fixedly installed on the lower support arm (103) for pushing and pulling the cross arm (104). A rectangular beam frame (301) is installed at the end of the multiple cross arms (104) away from the longitudinal reinforcement beam (101) and can slide relative to it along the Z-axis of the coordinate system. Hydraulic cylinder C (106) is fixedly installed at the bottom end of any longitudinal reinforcing beam (101) to lift the rectangular beam frame (301).

2. The installation device for high-voltage switchgear in power engineering according to claim 1, characterized in that: A slide table (107) is fixedly installed at the end of the cross arm (104) away from the longitudinal reinforcing beam (101). The two vertical ends of the rectangular beam frame (301) are slidably connected to the slide table (107). An L-shaped top plate (108) is fixedly installed at the bottom of the two vertical ends of the rectangular beam frame (301). The L-shaped top plate (108) is located on the output shaft of the hydraulic cylinder C (106). When the rectangular beam frame (301) is away from the longitudinal reinforcing beam (101), the L-shaped top plate (108) always remains on the output shaft of the hydraulic cylinder C (106).

3. The installation device for high-voltage switchgear in power engineering according to claim 2, characterized in that: The rectangular beam frame (301) has a through-type long slot (303) on the horizontal end above it, and the hook of the sliding hoist (402) can be hooked into the long slot (303) and tighten the rectangular beam frame (301).

4. The installation device for high-voltage switchgear in power engineering according to claim 3, characterized in that: The sliding hoist (402) includes a pulley block (4021) and a ratchet hoist (4022) installed at the bottom of the pulley block (4021). The pulley block (4021) is installed above and slidably connected to the support beam (401), and the ratchet hoist (4022) is located below the support beam (401).

5. The installation device for high-voltage switchgear in power engineering according to claim 4, characterized in that: Each of the protective brackets (302) has a shovel plate (305) fixedly installed at its bottom end, and a protective pad (304) is provided on the inner side of the protective bracket (302).

6. The installation device for high-voltage switchgear in power engineering according to claim 5, characterized in that: The supporting beam (401) is located on one side of the longitudinal reinforcing beam (101). An extension triangle (403) is fixedly installed at the end of the supporting beam (401). The other end of the extension triangle (403) is installed on the longitudinal reinforcing beam (101) and slidably connected to it. The output shaft of the hydraulic cylinder A (102) is fixed to the extension triangle (403).

7. The installation device for high-voltage switchgear in power engineering according to claim 6, characterized in that: The power assembly (2) includes a power box (201), a hydraulic cylinder D (202), and a universal drive wheel set (203). The power box (201) is installed between the bottom ends of two longitudinal reinforcing beams (101) for counterweight and to provide power to the hydraulic cylinder. There are two sets of hydraulic cylinders D (202), which are installed on both sides of the power box (201) and correspond to the two longitudinal reinforcing beams (101) respectively. The universal drive wheel set (203) is installed on the output shaft of the hydraulic cylinder D (202). When the hydraulic cylinder D (202) extends, it can make the universal drive wheel set (203) ground and make the longitudinal reinforcing beam (101) leave the ground.

8. The installation device for high-voltage switchgear in power engineering according to claim 7, characterized in that: The universal drive wheel assembly (203) includes a wheel frame (2031) mounted on a hydraulic cylinder D (202) and a hydraulic drive wheel (2032) capable of rotating 90 degrees relative to the wheel frame (2031).

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