10kv switch transfer trolley

Abstract

The invention discloses a 10 kv switch transfer trolley which comprises a frame, a lead screw assembly, a tray, a transmission assembly, a driving assembly and wheels. The frame is of a hollow tubular structure, and the upper portion of the frame is open. The two lead screw assemblies are symmetrically arranged on the two sides of the vehicle frame. The tray is located on the inner side of the frame, and the two ends of the tray are fixedly connected with the two lead screw assemblies respectively. The transmission assembly is arranged in a hollow pipe of the frame and connected with the lower ends of the two lead screw assemblies through bevel gears for transmission. The driving assembly is fixedly connected to the frame and is in transmission with the transmission assembly through a bevel gear; the four wheels are fixedly connected to the four corners of the lower end of the frame. Compared with a traditional carrying mode, the device has the advantages that the labor intensity is low, transferring is safe and efficient, the carrying process is stable and reliable, equipment collision and damage are avoided, and the safety of workers is guaranteed.

Description

Technical Field

[0007]

[0001] The present invention relates to the technical field of switch transfer trolleys, and particularly to a 10kV switch transfer trolley. Background Art

[0002] A 10kV switch transfer trolley is a special equipment used to take out a 10kV switch device from a switch cabinet and transfer it to the ground or a maintenance position in a power system. 10kV switches are usually large in size and heavy in weight (hundreds of kilograms to thousands of kilograms), and have a high value. The handling process requires stability and reliability to avoid bumping and damage. Existing handling methods mostly rely on manual labor or general forklifts. The former has a large labor intensity, low efficiency and safety hazards; the latter may not be safely operated due to size, operating space limitations or lack of special fixing devices, and is likely to cause equipment damage or personal injury. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a 10kV switch transfer trolley.

[0004] To solve the above technical problem, the technical solution of the present invention is as follows:

[0005] A 10kV switch transfer trolley includes: a frame, a screw rod assembly, a tray, a transmission assembly, a drive assembly and wheels; the frame adopts a hollow tubular structure, and the upper part of the frame is open; two groups of the screw rod assemblies are symmetrically arranged on both sides of the frame; the tray is located inside the frame, and its two ends are respectively fixedly connected to the two groups of screw rod assemblies; the transmission assembly is arranged in the hollow tube of the frame and is connected to the lower ends of the two groups of screw rod assemblies through bevel gears for transmission; the drive assembly is fixedly connected to the frame and is connected to the transmission assembly through bevel gears for transmission; the four wheels are fixedly connected to the four corners at the lower end of the frame.

[0006] Further, the frame includes a bottom frame, a front column, a middle column and a tail column; the bottom frame is in a "C" shape with one end open; on both sides of the open end of the bottom frame, a front column is vertically fixedly connected respectively, and on both sides of the bottom frame far from the front column, a middle column and a tail column are vertically fixedly connected in sequence.

[0007] Further, on the opposite surfaces of the two front columns, front column guide rails are fixedly connected respectively; a first slider is slidably connected in the front column guide rails; a positioning frame is detachably connected between the two first sliders.

[0008] Further, on the opposite surfaces of the two middle columns, middle column guide rails are fixedly connected respectively; on the opposite surfaces of the two tail columns, tail column guide rails are fixedly connected respectively; the tail column guide rails and the middle column guide rails have the same structure, and a second slider is slidably connected in the chute of the tail column guide rails and the middle column guide rails; the upper end of the tray is fixedly connected to the four second sliders respectively.

[0009] Furthermore, the upper ends of the frame are detachably connected to upper screw bearing seats on both sides, and the lower ends are detachably connected to lower screw bearing seats on both sides; the screw assembly includes a screw and a screw seat threadedly connected to the screw and detachably connected to both sides of the tray; the upper and lower parts of the screw are rotatably connected to the upper screw bearing seat and the lower screw bearing seat respectively.

[0010] Furthermore, the transmission assembly includes a first transmission shaft, a second transmission shaft, a third transmission shaft and a fourth transmission shaft; one end of the first transmission shaft is connected to the lower end of a screw assembly through a bevel gear; the other end of the first transmission shaft is connected to one end of the second transmission shaft through a bevel gear; the other end of the second transmission shaft is connected to one end of the third transmission shaft through a bevel gear; the other end of the third transmission shaft is connected to the lower end of another screw assembly through a bevel gear; the connection between the first transmission shaft and the second transmission shaft is also connected to the lower end of the vertically arranged fourth transmission shaft through a bevel gear; the upper end of the fourth transmission shaft is connected to the drive assembly through a bevel gear for transmission.

[0011] Furthermore, a plurality of transmission shaft bearing seats for conveniently supporting transmission are rotatably connected to the first transmission shaft, the second transmission shaft, the third transmission shaft and the fourth transmission shaft; the outer sides of the transmission shaft bearing seats are fixedly connected to the inner sides of the hollow tubes of the vehicle frame.

[0012] Furthermore, the drive assembly includes a drive housing, a first rotating shaft, a second rotating shaft and a drive housing cover; the drive housing cover cooperates with the drive housing; the first rotating shaft is rotatably connected to the drive housing cover and extends into the drive housing; the second rotating shaft is located in the drive housing and is arranged parallel to the first rotating shaft; the first rotating shaft and the second rotating shaft are engaged through gears; a retractable locking piece is connected to the drive housing cover below the second rotating shaft; a rectangular protrusion that cooperates with the end of the locking piece is constructed in the drive housing; the locking piece can lock the second rotating shaft by engaging with the second rotating shaft through a gear and being sleeved on the rectangular protrusion.

[0013] Furthermore, one end of the first rotating shaft away from the driving housing is fixedly connected to a handle or a motor.

[0014] Furthermore, two positioning pins are symmetrically fixedly connected to the end surface of the positioning frame away from the tray; and two limiting bolts are fixedly connected to the end of the tray away from the positioning frame.

[0015] Beneficial effects of the present invention:

[0016] (1) The present invention adopts screw lifting, which has smooth transmission, reliable self-locking and strong load-bearing capacity; the guide rails (front column, middle column and tail column) are used for guidance, and the tray is lifted and lowered more smoothly, which is especially suitable for switchgear with a high center of gravity; the adjustable positioning frame is matched with the positioning pin / tongue to ensure that the equipment is accurately positioned and firmly fixed to prevent overturning and sliding; the centralized transmission and drive design has a compact structure and is easy to operate; the safety of transportation is guaranteed by the mechanical locking mechanism.

[0017] (2) Compared with traditional transportation methods, the present invention has low labor intensity, safe and efficient transportation, and a smooth and reliable transportation process, which avoids equipment collision and damage and ensures the safety of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 is a structural diagram of the frame;

[0020] Figure 3 This is a schematic diagram of the structure of the present invention after removing the frame;

[0021] Figure 4 Schematic diagram of the connection structure of the positioning frame;

[0022] Figure 5 Schematic diagram of the three-dimensional structure of the drive component;

[0023] Figure 6 This is a schematic diagram of the structure in which the drive assembly removes the housing and adopts a handle drive;

[0024] Figure 7 Schematic diagram of the structure in which the housing of the drive component is removed and the motor is used for driving;

[0025] Figure 8 It is a structural diagram of the drive housing.

[0026] In the figure,

[0027] 1-frame, 2-screw assembly, 3-tray, 4-transmission assembly, 5-drive assembly, 6-wheel, 7-front column guide rail, 8-tail column guide rail, 9-middle column guide rail, 10-positioning frame, 11-upper screw bearing seat, 12-lower screw bearing seat;

[0028] 101- chassis, 102- front pillar, 103- middle pillar, 104- tail pillar;

[0029] 201-screw, 202-screw seat;

[0030] 301-limit bolt;

[0031] 401-first transmission shaft, 402-second transmission shaft, 403-third transmission shaft, 404-fourth transmission shaft, 405-transmission shaft bearing seat;

[0032] 501 - drive housing, 502 - first rotating shaft, 503 - second rotating shaft, 504 - drive housing cover, 505 - locking member, 506 - handle, 507 - motor;

[0033] 701-first slider, 702-handbrake;

[0034] 801-second slider;

[0035] 1001- positioning pin, 1002- positioning tongue;

[0036] 5011-Rectangular protrusion. DETAILED DESCRIPTION

[0037] The following is a further description of specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is intended to facilitate understanding of the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0038] Reference Figure 1-8 As shown, the present invention provides a 10kV switch transfer trolley, which is mainly used for safely and conveniently transferring 10kV voltage-level switchgear (such as vacuum circuit breakers, load switches, etc.) at power equipment maintenance and installation sites. The 10kv switch transfer trolley includes: a frame 1, which adopts a hollow tubular structure with an open upper portion; a screw assembly 2, with two sets of screw assemblies 2 symmetrically arranged on both sides of the frame 1; a tray 3, which is located on the inner side of the frame 1, and its two ends are respectively fixedly connected to the two sets of screw assemblies 2; a transmission assembly 4, which is arranged in the hollow tube of the frame 1 and is connected to the lower ends of the two sets of screw assemblies 2 through bevel gears for transmission; a drive assembly 5, which is fixedly connected to the frame 1 and transmits power to the transmission assembly 4 through bevel gears; and wheels 6, with four wheels 6 fixedly connected to the four corners of the lower end of the frame 1.

[0039] It should be noted that the frame 1 forms the main support structure of the trolley and utilizes a hollow tubular structure (for example, welded from rectangular or square steel tubes) to ensure structural strength while reducing weight. The upper portion of the frame 1 is designed to be open, facilitating the placement and removal of switchgear. The tray 3 is located inside the frame 1 and directly supports the bottom of the switchgear. The upper end surface (load-bearing surface) of the tray 3 is secured to four second sliders 801 (one each for the left center column, right center column, left tail column, and right tail column) via connectors (e.g., bolts). Therefore, the tray 3 is slidably connected to the center column guide rail 9 and tail column guide rail 8 via the four second sliders 801. Its lifting and lowering motion is guided by these four points, ensuring smooth movement. Two sets of screw rod assemblies 2 are symmetrically located on the left and right sides of the frame 1 to facilitate the raising and lowering of the tray 3. The transmission assembly 4 is located within the hollow tube of the frame 1 (primarily within the base frame 101) and synchronously transmits power from the drive assembly 5 to the lower ends of the screw rods 201 on both sides. The drive assembly 5 is fixedly connected (e.g., bolted) to the frame 1, typically located at the upper rear portion of the frame 1 for easy access. Four wheels 6 (preferably universal wheels with bearings, at least two of which have brakes) are fixedly connected to the four corners of the lower end of the frame 1 (typically connected below the four endpoints of the base frame 101) via mounting plates or brackets. The wheels 6 should have sufficient load-bearing capacity and flexibility to facilitate pushing and steering on indoor and outdoor surfaces. Wheels with brakes can lock the trolley when parked. Four wheels 6 (preferably universal wheels with bearings, at least two of which have brakes) are fixedly connected to the four corners of the lower end of the frame 1 (typically connected below the four endpoints of the base frame 101) via mounting plates or brackets. The wheels 6 should have sufficient load-bearing capacity and flexibility to facilitate pushing and steering on indoor and outdoor surfaces. Wheels with brakes can lock the trolley when parked.

[0040] Specifically, the vehicle frame 1 includes a chassis 101, a front column 102, a middle column 103, and a tail column 104; the chassis 101 is in a "C" shape with one end open; on both sides of the open end of the chassis 101, the front columns 102 are vertically and fixedly connected respectively, and on both sides of the chassis 101 away from the front columns 102, the middle columns 103 and the tail columns 104 are vertically and fixedly connected in sequence. It is in a "C" shape (or U shape) with one end open, and its closed end forms the rear end of the trolley, and the open end forms the front end of the trolley. The horizontal part of the chassis 101 is used to carry the transmission component 4 and provide lower support. The two front columns 102 are respectively vertically and fixedly connected to both sides of the open end (front end) of the chassis 101 and extend upward. The front column 102 is the main support structure at the front of the vehicle frame 1. The two middle columns 103 are respectively vertically and fixedly connected to the chassis 101 at a certain distance behind the front columns 102 (that is, in the direction away from the front columns 102). The two tail columns 104 are respectively vertically and fixedly connected to the chassis 101, behind the middle columns 103, and usually close to the closed end (rear end) of the chassis 101. The middle columns 103 and the tail columns 104 together form the support structure in the middle and rear of the vehicle frame 1. Preferably, the chassis 101, the front columns 102, the middle columns 103, and the tail columns 104 are fixedly connected by welding to ensure overall rigidity and stability. The internal space of the hollow tube of the vehicle frame 1 is used to accommodate and protect the transmission component 4.

[0041] Specifically, front pillar guide rails 7 are fixedly attached to the opposing surfaces of the two front pillars 102. First sliders 701 are slidably connected within the front pillar guide rails 7. A positioning bracket 10 is detachably connected between the two first sliders 701. A handbrake 702 is provided on one of the first sliders 701 to limit the sliding movement of the first slider 701 and the front pillar guide rail 7. The front pillar guide rails 7 are fixedly mounted on the opposing (inner) surfaces of the two front pillars 102. The front pillar guide rails 7 are preferably linear guides (e.g., ball bearing guides or sliding guides), with their length extending vertically. A first slider 701 is slidably connected within the guide groove of each front pillar guide rail 7. The positioning bracket 10 is detachably connected between the two first sliders 701 (one on each side) via a connector (e.g., bolts). The positioning bracket 10 is used to abut and position the front end (typically the operating mechanism side) of the switchgear during transport, preventing it from sliding forward or tipping over. Two symmetrical locating pins 1001 are fixedly attached to the end surface of the positioning frame 10 facing away from the tray 3 (i.e., facing the front of the trolley). These locating pins 1001 are designed to be inserted into pre-defined mounting holes or locating holes on the front of the switchgear, achieving precise circumferential positioning. Preferably, a locating tongue 1002 (or hook) extending upward or forward can be provided in the middle of the positioning frame 10 to hook onto a crossbeam or raised structure on the front of the switchgear, providing additional anti-tilt protection. A handbrake 702 is provided at (or adjacent to) one of the first sliders 701. This handbrake 702 limits the sliding movement of the first slider 701 within the front column guide rail 7, thereby locking the height of the positioning frame 10. The handbrake 702 can be implemented in the form of a butterfly bolt with a friction block, a latch-type locking mechanism, or a quick-release clamp. When the handbrake 702 is released, the height of the positioning frame 10 can be manually adjusted to accommodate the height of the locating holes on the front of different switchgear models. Once adjusted to the desired height, the handbrake 702 is locked securely.

[0042] Specifically, the two center posts 103 are each secured to opposing surfaces with center post guide rails 9; the two tail posts 104 are each secured to opposing surfaces with tail post guide rails 8. The tail post guide rails 8 and center post guide rails 9 have identical structures, and second sliders 801 are slidably connected within the guide grooves of the tail post guide rails 8 and center post guide rails 9. The upper end of the tray 3 is secured to four second sliders 801. The tail post guide rails 8 and center post guide rails 9 have identical structures, preferably also employing linear guides, with their guide grooves similarly oriented in the vertical direction. Second sliders 801 are slidably connected within the guide grooves of the tail post guide rails 8 and center post guide rails 9.

[0043] Specifically, upper screw bearing blocks 11 are detachably connected to the upper and lower ends of the frame 1, while lower screw bearing blocks 12 are detachably connected to the lower ends. The screw assembly 2 includes a screw 201 and screw blocks 202, which are threadedly connected to the screw 201 and detachably attached to the sides of the tray 3. The upper and lower portions of the screw 201 are rotatably connected to the upper and lower screw bearing blocks 11 and 12, respectively. The upper and lower screw bearing blocks 11 and 12 stably secure the screw assembly 2 to the frame 1. When the screw 201 rotates, the screw blocks 202 drive the tray 3 to move up and down along the guide rails (center column guide rail 9 and tail column guide rail 8). Preferably, the screw 201 utilizes a self-locking trapezoidal thread (e.g., Tr30×6) to prevent the tray 3 from falling under load.

[0044] Specifically, the transmission assembly 4 includes a first transmission shaft 401, a second transmission shaft 402, a third transmission shaft 403 and a fourth transmission shaft 404; the first transmission shaft 401, the second transmission shaft 402, the third transmission shaft 403 and the fourth transmission shaft 404 can evenly transmit the power of the driving assembly 5 to the screw assembly 2, ensuring that the two groups of screw assemblies 2 move smoothly at the same time; one end of the first transmission shaft 401 is connected to the lower end of a screw assembly 2 through a bevel gear; the other end of the first transmission shaft 401 is connected to one end of the second transmission shaft 402 through a bevel gear; the other end of the second transmission shaft 402 is connected to one end of the third transmission shaft 403 through a bevel gear; the other end of the third transmission shaft 403 is connected to the lower end of another screw assembly 2 through a bevel gear; the connection between the first transmission shaft 401 and the second transmission shaft 402 is also connected to the lower end of the vertically arranged fourth transmission shaft 404 through a bevel gear; the upper end of the fourth transmission shaft 404 is connected to the driving assembly 5 through a bevel gear for transmission. Several drive shaft bearing blocks 405 are rotatably connected to the first, second, third, and fourth drive shafts 401, 402, 403, and 404 to facilitate transmission support. The outer sides of these bearing blocks 405 are fixedly attached to the inner side of the hollow tube of the vehicle frame 1. These bearing blocks 405 support the drive shafts, reducing friction and ensuring smooth transmission. The outer sides (bases) of these bearing blocks 405 are fixedly attached to the inner sidewall of the hollow tube of the vehicle frame 1 via bolts or other means.

[0045] Specifically, the drive assembly 5 includes a drive housing 501, a first rotating shaft 502, a second rotating shaft 503 and a drive housing cover 504; the drive housing cover 504 cooperates with the drive housing 501; the first rotating shaft 502 is rotatably connected to the drive housing cover 504 and extends into the drive housing 501; the second rotating shaft 503 is located in the drive housing 501 and is arranged parallel to the first rotating shaft 502; the first rotating shaft 502 and the second rotating shaft 503 are engaged through gears; a retractable locking member 505 is connected to the drive housing cover 504 below the second rotating shaft 503; a rectangular protrusion 5011 is constructed in the drive housing 501 to cooperate with the end of the locking member 505; the locking member 505 can be engaged with the second rotating shaft 503 through a gear and is sleeved on the rectangular protrusion 5011 to lock the second rotating shaft 503. When locking member 505 is pushed or moved inward (toward second rotating shaft 503), its end engages with the gear teeth on second rotating shaft 503 (for example, the end of locking member 505 is designed as a rack or ratchet), directly blocking the gear rotation. Simultaneously, it fits (or snaps into) rectangular protrusion 5011, which restricts the movement of locking member 505, thereby doubly locking second rotating shaft 503 and preventing it from rotating. This ensures that tray 3 can be securely locked at any height, preventing it from accidentally falling.

[0046] Specifically, a handle 506 or motor 507 is fixedly connected to the end of the first rotating shaft 502 away from the drive housing 501. The handle 50 is manually operated, making it convenient for use when there is no power on site. The motor 507 is electrically operated (e.g., a DC reduction motor), which improves efficiency and reduces operator effort. The motor 507 is controlled by a control box (including a forward / reverse switch). This is preferably an optional feature or a design that allows for quick switching.

[0047] Specifically, two positioning pins 1001 are symmetrically fixed to the end face of the positioning frame 10 away from the tray 3; and two limiting bolts 301 are fixed to the end of the tray 3 away from the positioning frame 10. A positioning tongue 1002 for hooking the switch cabinet can also be provided in the middle of the positioning frame 10. Two limiting bolts 301 are fixed to the end (i.e., the rear end) of the tray 3 away from the positioning frame 10. The screws of these two limiting bolts 301 can extend upward to a certain height from the load-bearing surface of the tray to block the rear end of the switch device and prevent it from sliding backward during transportation. The height of the limiting bolt 301 can be adjusted by a nut. It is also preferred that the positioning tongue 1002 hooks the device.

[0048] Working principle of the present invention:

[0049] Push the transfer trolley to the front of the 10kV switchgear. Adjust the height of the positioning frame 10 so that the positioning pins 1001 are roughly aligned with the positioning holes on the switchgear panel. Lock the handbrake 702. Use the drive assembly 5 (manually turn the handle 506 or start the motor 507) to lower the tray 3 to the desired height (below the switchgear rail). Push the trolley so that the positioning pins 1001 precisely insert into the positioning holes on the switchgear panel, securing the trolley to the switchgear. Unlock the switch fixture inside the cabinet. Operate the drive assembly 5 to slowly lift the tray 3 until it contacts the bottom of the switch. Continue lifting, smoothly lifting the switch off the cabinet rail. Then, pull the switch out of the cabinet, fully onto the tray 3, with the rear end of the switch resting against the stop bolts 301. If provided, ensure that the positioning tongue 1002 engages the top of the switch. Insert the locking member 505 of the drive assembly 5 outside the rectangular protrusion 5011 to lock the lifting mechanism. Release the positioning frame handbrake 702 and lower the positioning frame 10 (optional, to prevent interference). Lock the wheels 6 (or partially brake them) and safely move the trolley out of the cabinet and to its destination. The process is the reverse of moving out. Once the trolley is positioned, unlock the lifting mechanism and operate the drive assembly 5 to raise or lower the switch until it aligns with the rails inside the cabinet. Push the switch in and secure it. Finally, lower the tray 3 off the bottom of the switch and remove the trolley.

[0050] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A 10kv switch transfer trolley, characterized in that: Comprising: A frame (1), the frame (1) adopts a hollow tubular structure, and the upper part of the frame (1) is open; A screw rod assembly (2), two groups of the screw rod assemblies (2) are symmetrically arranged on both sides of the frame (1); A tray (3), the tray (3) is located inside the frame (1), and both ends thereof are fixedly connected to the two groups of screw rod assemblies (2) respectively; A transmission assembly (4), the transmission assembly (4) is arranged in the hollow tube of the frame (1), and is connected to the lower ends of the two groups of screw rod assemblies (2) through bevel gears for transmission; A drive assembly (5), the drive assembly (5) is fixedly connected to the frame (1), and is connected to the transmission assembly (4) through bevel gears for transmission; Wheels (6), four of the wheels (6) are fixedly connected to the four corners at the lower end of the frame (1).

2. The 10kV switch transfer vehicle according to claim 1 is characterized in that: The frame (1) includes a bottom frame (101), a front column (102), a middle column (103) and a tail column (104); the bottom frame (101) is in a "C" shape with one end open; on both sides of the open end of the bottom frame (101), a front column (102) is vertically fixedly connected respectively, and on both sides of the bottom frame (101) far from the front column (102), a middle column (103) and a tail column (104) are vertically fixedly connected in sequence.

3. The 10kV switch transfer vehicle according to claim 2 is characterized in that: On the opposite surfaces of the two front columns (102), a front column guide rail (7) is fixedly connected respectively; a first slider (701) is slidably connected in the front column guide rail (7); a positioning frame (10) is detachably connected between the two first sliders (701).

4. The 10kV switch transfer vehicle according to claim 2, characterized in that: On the opposite surfaces of the two middle columns (103), a middle column guide rail (9) is fixedly connected respectively; on the opposite surfaces of the two tail columns (104), a tail column guide rail (8) is fixedly connected respectively; the tail column guide rail (8) and the middle column guide rail (9) have the same structure, and a second slider (801) is slidably connected in the chute of the tail column guide rail (8) and the middle column guide rail (9); the upper end of the tray (3) is fixedly connected to the four second sliders (801) respectively.

5. The 10kV switch transfer vehicle according to claim 2 is characterized in that: On both sides of the upper end of the frame (1), an upper screw rod bearing seat (11) is detachably connected respectively, and on both sides of the lower end of the frame (1), a lower screw rod bearing seat (12) is detachably connected respectively; the screw rod assembly (2) includes a screw rod (201) and a screw rod seat (202) that is threadedly connected to the screw rod (201) and is detachably connected to both sides of the tray (3); the upper and lower parts of the screw rod (201) are rotatably connected to the upper screw rod bearing seat (11) and the lower screw rod bearing seat (12) respectively.

6. The 10kV switch transfer vehicle according to claim 1, characterized in that: The transmission assembly (4) comprises a first transmission shaft (401), a second transmission shaft (402), a third transmission shaft (403) and a fourth transmission shaft (404); one end of the first transmission shaft (401) is connected to the lower end of a screw assembly (2) through a bevel gear; the other end of the first transmission shaft (401) is connected to one end of the second transmission shaft (402) through a bevel gear; the other end of the second transmission shaft (402) is connected to one end of the third transmission shaft (403) through a bevel gear; the other end of the third transmission shaft (403) is connected to the lower end of another screw assembly (2) through a bevel gear; the connection between the first transmission shaft (401) and the second transmission shaft (402) is also connected to the lower end of a fourth transmission shaft (404) arranged vertically through a bevel gear; the upper end of the fourth transmission shaft (404) is connected to the driving assembly (5) through a bevel gear for transmission.

7. The 10kV switch transfer vehicle according to claim 1 is characterized in that: A plurality of transmission shaft bearing seats (405) for conveniently supporting transmission are rotatably connected to the first transmission shaft (401), the second transmission shaft (402), the third transmission shaft (403) and the fourth transmission shaft (404); the outer sides of the transmission shaft bearing seats (405) are fixedly connected to the inner sides of the hollow tubes of the vehicle frame (1).

8. The 10kV switch transfer vehicle according to any one of claims 1 to 7, characterized in that: The driving assembly (5) comprises a driving housing (501), a first rotating shaft (502), a second rotating shaft (503) and a driving housing cover (504); the driving housing cover (504) cooperates with the driving housing (501); the first rotating shaft (502) is rotatably connected to the driving housing cover (504) and extends into the driving housing (501); the second rotating shaft (503) is located in the driving housing (501) and is arranged parallel to the first rotating shaft (502); the second rotating shaft (503) is located in the driving housing (501) and is arranged parallel to the first rotating shaft (502); A rotating shaft (502) is meshed with a second rotating shaft (503) via a gear; a retractable locking member (505) is connected to a driving housing cover (504) below the second rotating shaft (503); a rectangular protrusion (5011) is constructed in the driving housing (501) and is matched with the end of the locking member (505); the locking member (505) can be meshed with the second rotating shaft (503) via a gear and is sleeved on the rectangular protrusion (5011) to lock the second rotating shaft (503).

9. The 10kV switch transfer vehicle according to claim 8, characterized in that: One end of the first rotating shaft (502) away from the driving housing (501) is fixedly connected to a handle (506) or a motor (507).

10. The 10kV switch transfer vehicle according to claim 3, characterized in that: Two positioning pins (1001) are symmetrically fixedly connected to the end surface of the positioning frame (10) away from the tray (3); and two limiting bolts (301) are fixedly connected to the end of the tray (3) away from the positioning frame (10).

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