Electric lifting type transfer handcart

Abstract

The invention discloses an electric lifting type transfer handcart, and relates to the technical field of switch cabinet handcart transfer equipment, the electric lifting type transfer handcart comprises a handcart body frame, the handcart body frame comprises a left longitudinal beam and a right longitudinal beam which are arranged on the left side and the right side of the handcart body frame, guide rails extending in the vertical direction are fixedly arranged on the front sides of the left longitudinal beam and the right longitudinal beam, and a lifting platform is installed on the guide rails in a sliding mode; a lifting motor is mounted on the side part of the vehicle body frame and drives the lifting platform to move up and down along the guide rails; the lifting platform comprises a bearing plate horizontally arranged between the left longitudinal beam and the right longitudinal beam, and a left sliding rail and a right sliding rail are installed on the bearing plate in parallel. The front ends of the left slide rail and the right slide rail respectively extend out of the bearing plate, and positioning pins are fixedly arranged at the tail ends; an electric lifting structure is adopted, fine adjustment of a hand wheel is matched, the height of the lifting platform can be adjusted more easily and accurately, and time and labor are saved; and the width between the sliding rails is adjustable, so that the device is suitable for switch cabinet handcarts with different sizes.

Description

Technical Field

[0001] The present invention relates to the technical field of switch cabinet trolley transfer equipment, and in particular to an electric lifting transfer trolley. Background Art

[0002] Switchgear is used to open and close, control, and protect electrical equipment during the power generation, transmission, distribution, and energy conversion processes of power systems. The switchgear trolley is a core component installed within the switchgear and needs to be replaced promptly if a fault occurs. Currently, after the modules are assembled, due to their weight and the need to align them with the installation position during transportation, they cannot be completed by a single person and usually require the combined efforts of several people. This makes the workers' labor intensity very high and their work efficiency low.

[0003] In order to save manpower, a transfer trolley is needed in the process of transferring switch cabinet trolleys. However, the current transfer trolleys are either unable to be raised or lowered, or the lifting and lowering adjustment is not accurate, or the installation position is inconvenient to align, or the width of the slide rail is not adjustable and cannot adapt to switch cabinet trolleys of various sizes. Therefore, they need to be improved. Summary of the Invention

[0004] The purpose of the present invention is to provide an electric lifting transfer trolley, which adopts an electric lifting structure and cooperates with handwheel fine-tuning to more easily and accurately adjust the height of the lifting platform, saving time and effort; the width between the slide rails is adjustable to adapt to switch cabinet trolleys of different sizes.

[0005] The present invention includes a vehicle body frame, which includes a left longitudinal beam and a right longitudinal beam arranged on the left and right sides of the vehicle body frame, and the front sides of the left longitudinal beam and the right longitudinal beam are fixedly provided with guide rails extending in the vertical direction, and a lifting platform is slidably installed on the guide rails; a lifting motor is installed on the side of the vehicle body frame, and the lifting motor drives the lifting platform to move up and down along the guide rails; the lifting platform includes a load-bearing plate horizontally arranged between the left longitudinal beam and the right longitudinal beam, and a left slide rail and a right slide rail are installed in parallel on the load-bearing plate; the front ends of the left slide rail and the right slide rail respectively extend out of the load-bearing plate, and positioning pins are fixed at the ends.

[0006] After adopting the above structure, an electric lifting structure is used, and the handwheel fine-tuning is combined to make it easier and more accurate to adjust the height of the lifting platform. It is more energy-saving, environmentally friendly, quieter, saves time and effort, and is convenient for transferring the switch cabinet trolley. The positioning pin can be inserted into the positioning hole on the switch cabinet shell. During the transfer process, the positioning pin is used to position the switch cabinet shell to ensure that the transfer trolley can be aligned with the switch cabinet shell. On the one hand, it can prevent the transfer trolley from moving horizontally, and on the other hand, it ensures the accuracy of the connection between the transfer trolley and the switch cabinet shell.

[0007] Preferably, a left-side slide groove extending in the left-right direction is provided on the plate surface on the left side of the load-bearing plate, and there are two left-side slide grooves, which are arranged in parallel at the front and rear ends of the left side of the load-bearing plate; a slider that can slide left and right in the left-side slide groove is fixed to the lower part of the left slide rail.

[0008] Preferably, a right side slide groove extending in the left and right directions is provided on the plate surface on the right side of the load-bearing plate, and there are two right side slide grooves, which are arranged in parallel at the front and rear ends of the right side of the load-bearing plate; the lower part of the right slide rail is fixed with a slide that can slide left and right in the right side slide groove.

[0009] Preferably, one end of the left slide rail and the right slide rail is provided with a through hole that passes through the upper and lower sides of the slide rail; on the plate surface of the load-bearing plate, corresponding to the through holes, a number of threaded holes are spaced apart, and the several threaded holes are arranged in a straight line along the left and right directions of the load-bearing plate.

[0010] Preferably, lock noses are rotatably installed on the outer sides of the left and right slide rails, and sockets for inserting the lock noses are provided on the surface of the load-bearing plate at corresponding positions of the lock noses, and the number and positions of the sockets correspond one-to-one to the threaded holes.

[0011] Preferably, the cross-sections of the left and right slide rails are both L-shaped, and the left and right slide rails are symmetrically arranged on the left and right sides of the load-bearing plate, and one of the right-angled sides of the left and right slide rails is relatively arranged on the outside of the load-bearing plate.

[0012] Preferably, a control box is further installed on the vehicle body frame, the control box is connected to the lifting motor, and a hand wheel is also installed on the control box.

[0013] Preferably, the left and right ends of the lower portion of the vehicle body frame are provided with front legs extending toward the front side of the vehicle body frame, and the front moving wheels are mounted on the front legs.

[0014] Preferably, rear moving wheels are installed on the rear sides of the front legs.

[0015] Preferably, a locking plate is installed on the rear moving wheel.

[0016] In summary, the present invention has the following beneficial effects:

[0017] 1. The electric lifting structure and handwheel fine-tuning make it easier and more accurate to adjust the height of the lifting platform. It is more energy-saving, environmentally friendly, quieter, time-saving and labor-saving, and convenient for transferring the switch cabinet trolley. The positioning pin can be inserted into the positioning hole on the switch cabinet shell. During the transfer process, the positioning pin is used to position the switch cabinet shell to ensure that the transfer trolley can be aligned with the switch cabinet shell. On the one hand, it can prevent the transfer trolley from moving horizontally, and on the other hand, it ensures the accuracy of the connection between the transfer trolley and the switch cabinet shell.

[0018] 2. The distance between the left and right slide rails can be adjusted to accommodate switchgear trolleys of different sizes. In addition, the left and right slide rails can be adjusted independently, so that the switchgear trolley is always in the middle of the load-bearing plate. Compared with the structure in which only one side of the slide rail can be adjusted, this structure is more reasonable and less likely to cause eccentricity of the load-bearing plate.

[0019] 3. The slide rails are fixed by bolts and lock noses, which is simple, convenient, easy to use and cost-effective. The number and position of the sockets correspond to the threaded holes one by one, ensuring that after each adjustment of the slide rails, the slide rails are always perpendicular to the load-bearing plate, and the left and right slide rails are parallel to each other. In this way, the switch cabinet trolley is not easily stuck when moving on the slide rails. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a side view of an electric lifting transfer trolley of the present invention;

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is a top view of an electric lifting transfer trolley of the present invention;

[0023] Figure 4 for Figure 3 A partially enlarged cross-section view with the right slide rail removed;

[0024] Figure 5 This is a structural schematic diagram of an electric lifting transfer trolley of the present invention after being installed with a switch cabinet trolley.

[0025] In the figure: 1. Car body frame; 2. Left longitudinal beam; 3. Right longitudinal beam; 4. Lifting platform; 5. Lifting motor; 6. Load-bearing plate; 7. Left slide rail; 8. Right slide rail; 9. Locating pin; 10. Left slide groove; 11. Right slide groove; 12. Through hole; 13. Threaded hole; 14. Lock nose; 15. Jack; 16. Control box; 17. Handwheel; 18. Front support leg; 19. Front moving wheel; 20. Rear moving wheel; 21. Locking plate; 100. Switch cabinet trolley. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] The orientations mentioned in this specification are based on the orientations of the electric lifting transfer trolley of the present invention during normal operation, and do not limit the orientations during storage and transportation. They only represent relative positional relationships, not absolute positional relationships.

[0028] like Figures 1 to 5As shown together, an electric lifting transfer trolley includes a body frame 1, which is a rectangular frame welded from steel structural parts. The body frame 1 includes a left longitudinal beam 2 and a right longitudinal beam 3 arranged on the left and right sides of the body frame 1. The front sides of the left longitudinal beam 2 and the right longitudinal beam 3 are fixed with guide rails extending in the vertical direction, and a lifting platform 4 is slidably installed on the guide rails; a lifting motor 5 is installed on the side of the body frame 1. In this embodiment, the lifting motor 5 is connected to the lifting platform 4 through a reduction mechanism, gears, worm gears and other components. The lifting motor 5 rotates to drive the lifting platform 4 to move up and down along the guide rails, thereby moving the lifting platform 4 to the same height as the installation port of the switch cabinet trolley 100, which is convenient for moving the switch cabinet trolley 100, eliminating manual handling, saving time and effort; in other embodiments, the lifting platform 4 can also be driven up and down by other methods. This part of the structure is a prior art and will not be described here one by one.

[0029] Furthermore, the lifting platform 4 includes a load-bearing plate 6 horizontally arranged between the left longitudinal beam 2 and the right longitudinal beam, and a left slide rail 7 and a right slide rail 8 are installed in parallel on the load-bearing plate 6; the distance between the left slide rail 7 and the right slide rail 8 is the same as the distance between the bottom rollers of the switch cabinet trolley 100 to be transferred. When the switch cabinet trolley 100 needs to be moved to the transfer trolley, the left slide rail 7 and the right slide rail 8 are aligned with the rollers at the bottom of the switch cabinet trolley 100, so that the switch cabinet trolley 100 can be easily slid, saving time and effort.

[0030] Furthermore, the front ends of the left slide rail 7 and the right slide rail 8 respectively extend out of the load-bearing plate 6, and a positioning pin 9 is fixed at the end; the positioning pin 9 can be inserted into the positioning hole on the switch cabinet housing, and is positioned with the switch cabinet housing through the positioning pin 9 during the transfer process to ensure that the transfer trolley can be aligned with the switch cabinet housing. On the one hand, it can prevent the transfer trolley from moving horizontally, and on the other hand, it ensures the accuracy of the connection between the transfer trolley and the switch cabinet housing.

[0031] The left and right sides of the trolleys 10 are respectively provided with a left side slot 10 and a right side slot 11, and a right side slot 11 is provided on the left side of the trolleys 10, so that the trolleys 10 are always in the middle of the trolleys 10, and the left and right sides of the trolleys 10 are respectively provided with a left side slot 10 and a right side slot 11.

[0032] Furthermore, one end of the left slide rail 7 and the right slide rail 8 is provided with a through hole 12 that passes through the upper and lower sides of the slide rail. On the plate surface of the load-bearing plate 6, a number of threaded holes 13 are provided at intervals at positions corresponding to the through holes 12. The spacing between the threaded holes 13 is set according to needs, and the several threaded holes 13 are arranged in a straight line along the left and right directions of the load-bearing plate 6; after adjusting the left slide rail 7 or the right slide rail 8 to a suitable position, the bolts are inserted into the through holes 12 and the threaded holes 13, and the nuts are tightened to achieve the fixation of one end of the left slide rail 7 or the right slide rail 8.

[0033] The outer sides of the left and right slide rails 7 and 8 are rotatably mounted with locking noses 14. On the surface of the bearing plate 6, at the corresponding positions of the locking noses 14, there are insertion holes 15 for the locking noses 14 to be inserted. The locking noses 14 can rotate around their rotation axes. When the locking noses 14 are rotated downward and inserted into the insertion holes 15 on the bearing plate 6, the other ends of the left and right slide rails 7 and 8 can be fixed to prevent the slide rails from moving left and right. When the locking noses 14 are rotated upward and moved out of the insertion holes 15, the nuts are unscrewed at the same time to realize the movement of the slide rails. The number and positions of the insertion holes 15 correspond one-to-one to the threaded holes 13, ensuring that after each adjustment of the slide rails, the slide rails are always arranged perpendicular to the bearing plate 6, and the left and right slide rails 7 and 8 are parallel to each other. In this way, the switch cabinet trolley 100 is not easily stuck when moving on the slide rails.

[0034] Furthermore, the cross-sections of the left slide rail 7 and the right slide rail 8 are both "L"-shaped structures. The left slide rail 7 and the right slide rail 8 are symmetrically arranged on the left and right sides of the support plate. One of the right-angled sides of the left slide rail 7 and the right slide rail 8 is relatively arranged on the outside of the support plate. The outer right-angled side can guide the switch cabinet trolley 100 and also limit it.

[0035] Furthermore, a control box 16 is installed on the vehicle body frame 1, the control box 16 is connected to the lifting motor 5, and a hand wheel 17 is installed on the control box 16; by operating the hand wheel 17, the height of the lifting platform 4 can be fine-tuned to facilitate the alignment of the positioning pin 9 with the positioning hole on the switch cabinet, thereby improving work efficiency.

[0036] Furthermore, front legs 18 extending toward the front side of the vehicle frame 1 are provided at the left and right ends of the lower part of the vehicle frame 1, and front moving wheels 19 are installed on the front legs 18 to maintain the balance of the vehicle body; rear moving wheels 20 are installed on the rear sides of the front legs 18 to facilitate the movement of the vehicle body; locking plates 21 are installed on the rear moving wheels 20. By stepping on the locking plates 21, the moving wheels can be prevented from moving, thereby keeping the vehicle body stable.

[0037] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. An electric lifting transfer trolley, characterized by: The invention comprises a vehicle body frame (1), wherein the vehicle body frame (1) comprises a left longitudinal beam (2) and a right longitudinal beam (3) arranged on the left and right sides of the vehicle body frame (1), the front sides of the left longitudinal beam (2) and the right longitudinal beam (3) are fixedly provided with guide rails extending in the vertical direction, and a lifting platform (4) is slidably installed on the guide rails; a lifting motor (5) is installed on the side of the vehicle body frame (1), and the lifting motor (5) drives the lifting platform (4) to move up and down along the guide rails; the lifting platform (4) comprises a load-bearing plate (6) horizontally arranged between the left longitudinal beam (2) and the right longitudinal beam, and a left slide rail (7) and a right slide rail (8) are installed in parallel on the load-bearing plate (6); the front ends of the left slide rail (7) and the right slide rail (8) respectively extend out of the load-bearing plate (6), and positioning pins (9) are fixed at the ends.

2. The electric lifting transfer trolley according to claim 1, characterized in that: A left side slide groove (10) extending in the left-right direction is provided on the plate surface on the left side of the load-bearing plate (6), and two left side slide grooves (10) are provided. The two left side slide grooves (10) are arranged in parallel at the front and rear ends of the left side of the load-bearing plate (6); a slider capable of sliding left and right in the left side slide groove (10) is fixed to the lower part of the left slide rail (7).

3. The electric lifting transfer trolley according to claim 2, characterized in that: A right side slide groove (11) extending in the left-right direction is provided on the plate surface on the right side of the load-bearing plate (6), and two right side slide grooves (11) are provided. The two right side slide grooves (11) are arranged in parallel at the front and rear ends of the right side of the load-bearing plate (6); the lower part of the right slide rail (8) is fixed with a slide that can slide left and right in the right side slide groove (11).

4. The electric lifting transfer trolley according to claim 3, characterized in that: One end of the left slide rail (7) and the right slide rail (8) is provided with a through hole (12) penetrating the upper and lower sides of the slide rail; on the plate surface of the load-bearing plate (6), corresponding positions of the through holes (12) are provided with a plurality of threaded holes (13) at intervals, and the plurality of threaded holes (13) are arranged in a straight line along the left and right directions of the load-bearing plate (6).

5. The electric lifting transfer trolley according to claim 4, characterized in that: The outer sides of the left slide rail (7) and the right slide rail (8) are both rotatably mounted with locking noses (14). On the plate surface of the load-bearing plate (6), corresponding positions of the locking noses (14) are provided with insertion holes (15) for inserting the locking noses (14). The number and positions of the insertion holes (15) correspond to the threaded holes (13) one by one.

6. The electric lifting transfer trolley according to claim 1, characterized in that: The cross sections of the left slide rail (7) and the right slide rail (8) are both L-shaped structures. The left slide rail (7) and the right slide rail (8) are symmetrically arranged on the left and right sides of the load-bearing plate (6). One of the right-angled sides of the left slide rail (7) and the right slide rail (8) is relatively arranged on the outer side of the load-bearing plate (6).

7. The electric lifting transfer trolley according to claim 1, characterized in that: A control box (16) is also installed on the vehicle body frame (1), the control box (16) is connected to the lifting motor (5), and a hand wheel (17) is also installed on the control box (16).

8. The electric lifting transfer trolley according to claim 1, characterized in that: Front legs (18) extending toward the front side of the vehicle body frame (1) are provided at the left and right ends of the lower portion of the vehicle body frame (1), and front moving wheels (19) are installed on the front legs (18).

9. The electric lifting transfer trolley according to claim 8, characterized in that: The rear side of the front supporting leg (18) is equipped with a rear moving wheel (20).

10. The electric lifting transfer trolley according to claim 9, characterized in that: A locking plate (21) is installed on the rear moving wheel (20).

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