Adjustable low-position transfer trolley for switch cabinet
By designing a low-level transfer truck for adjustable switch cabinets and adopting a dual adjustment mechanism, the problems of the height of the low-level transfer trucks in the existing technology are not adjustable or the adjustment range are small, and highly flexible adjustment and smooth transfer of functional handcars are achieved, which improves operating accuracy and safety.
Patent Information
- Application Number
- CN202421479419.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The height of the existing low-level transshipment truck is unadjustable or has a small adjustment range, resulting in a lack of accuracy and flexibility, complex operation, reduced safety, poor adaptability and inconvenient maintenance and use.
A low-level transfer truck for adjustable switch cabinets is designed, and a double adjustment mechanism is adopted. Through the combination of adjusting parts and pallet parts, the height of the functional handcart guide rails in the switch cabinet is flexibly adjusted.
It realizes flexibility to adapt to different height differences, ensures the smooth transportation of functional car, improves operation accuracy and safety, and reduces operation complexity and maintenance difficulty.
Smart Images
Figure CN223023908U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transfer vehicles, in particular to a low-position transfer vehicle for adjustable switch cabinets. Background Art
[0002] The low-position transfer vehicle for adjustable switch cabinets is used for the transfer work of various low-position function hand trucks in the switch cabinet. Various function hand trucks include lower PT hand trucks, lower lightning arrester hand trucks, etc. According to the current common domestic switch cabinet low-position function hand truck guide rail height, it is generally between 180 and 200 millimeters. Considering the actual situation of the civil construction of the distribution room, the height difference between the bottom installation foundation plane of the switch cabinet and the distribution room floor varies according to the actual requirements of each place, usually between 0 and 100 millimeters.
[0003] Most of the existing low-position transfer vehicles have non-adjustable or small adjustable height ranges, which will bring problems such as lack of accuracy and flexibility, increased operation complexity, reduced safety, poor adaptability, and inconvenient maintenance and use. These disadvantages not only affect the actual use effect of the low-position transfer vehicle, but also increase the operation difficulty and potential safety hazards.
[0004] In view of the above, this application proposes a low-position transfer vehicle for adjustable switch cabinets to solve the above problems, adopting a dual adjustment mechanism, which can better meet various requirements in practical applications. Content of the Utility Model
[0005] Aiming at the deficiencies of the prior art, the utility model provides a low-position transfer vehicle for adjustable switch cabinets, which solves the problems put forward in the above background art.
[0006] To achieve the above objectives, the utility model is realized through the following technical solutions:
[0007] A low-position transfer vehicle for adjustable switch cabinets, the low-position transfer vehicle is used to smoothly receive the function hand truck removed from the switch cabinet, including,
[0008] A chassis for supporting the low-position transfer vehicle, and casters are installed at its bottom for transfer work;
[0009] Four groups of support plates are distributed and installed on the upper surface of the chassis;
[0010] Adjusting parts are assembled on both sides of the chassis through the support plates;
[0011] A tray part is assembled and connected to the chassis through the adjusting parts for supporting and limiting the function hand truck;
[0012] Among them, the adjusting member includes an adjusting bracket, a screw rod, and a threaded disc. The adjusting bracket is installed on the chassis; the screw rod is inserted into the adjusting bracket and riveted to the support plate member through a rivet nut. The threaded disc is sleeved on the surface of the screw rod; when the threaded disc rotates, it drives the support plate member to make a linear adjustment up and down through the screw rod to adapt to the height of the functional trolley guide rail in the switch cabinet.
[0013] Optionally, the caster member includes two sets of universal wheels and two sets of directional wheels;
[0014] The two sets of universal wheels are arranged at both ends of the front side of the bottom of the chassis;
[0015] The two sets of directional wheels are arranged at both ends of the rear side of the bottom of the chassis.
[0016] Optionally, the support plate member includes a bottom plate, a locking plate, and a reset leaf spring;
[0017] The bottom plate is connected to the screw rod through a rivet nut;
[0018] The locking plate is horizontally inserted through the middle of the bottom plate;
[0019] The reset leaf spring is arranged at one end of the bottom plate close to the locking plate and is connected to the locking plate.
[0020] Optionally, the bottom plate includes two side plates and two bending plates. The two ends of the locking plate are in contact with the two bending plates, and a positioning sleeve for limiting the functional trolley is provided at the rear end of the surface of each of the two side plates.
[0021] Optionally, the front end of the locking plate is in a hook shape and is clamped with the switch cabinet. A limiting bolt is provided on each side of the surface of the locking plate; a ball handle is provided at a position where the rear end of the locking plate passes through the side plate.
[0022] Optionally, a handle is provided on one surface of one of the two side plates close to the positioning sleeve.
[0023] Optionally, a limiting sleeve for restricting the movement range of the screw rod is provided on the surface of the adjusting bracket; a limiting nut for preventing excessive movement is provided at the bottom of the screw rod.
[0024] Optionally, the adjusting bracket includes a support rod and an adjusting plate;
[0025] The support rod is installed on the chassis;
[0026] One side of the adjusting plate is connected to the support rod, and the other side is connected to the support plate.
[0027] The utility model provides an adjustable low-position transfer cart for a switch cabinet, which has the following beneficial effects:
[0028] 1. By adjusting the assembly effect between the chassis and the support plate through the adjusting member, it has an adjustable height function and can adapt to different height differences between the bottom installation base plane of the switch cabinet and the floor. This enables it to be used under various on-site conditions, with high flexibility to ensure the smooth progress of the work process.
[0029] 2. Through the cooperative setting among the support plate, the adjusting member, and the support plate member, it is possible to adjust the connection between the adjusting member and the support plate through the adjusting member itself to change the distance between the chassis and the support plate member. Also, when the adjusting member is fixed, the distance between the support plate member and the chassis can be changed through the screw, achieving two-part adjustment. The step-by-step adjustment design enables the transfer cart to adapt to these different height requirements and ensures the compatibility of various hand trucks. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is a schematic structural diagram of the present utility model;
[0031] Figure 2 It is a schematic side plane structural diagram of the present utility model;
[0032] Figure 3 It is a schematic structural diagram of the chassis of the present utility model;
[0033] Figure 4 It is a schematic structural diagram of the support plate member of the present utility model;
[0034] Figure 5 It is a schematic structural diagram of the adjusting member of the present utility model.
[0035] In the figure: 1. Chassis; 2. Support plate; 3. Adjusting member; 31. Adjusting bracket; 311. Support rod; 312. Adjusting plate; 32. Screw; 33. Threaded disc; 4. Support plate member; 41. Bottom plate; 42. Locking plate; 43. Reset leaf spring; 44. Positioning sleeve; 5. Rivet nut; 6. Caster member; 61. Swivel wheel; 62. Fixed wheel; 7. Limit bolt; 8. Ball handle; 9. Handle; 10. Limit sleeve; 11. Limit nut. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0036] In order to facilitate understanding of the technical means, creative features, achieved purposes, and effects of the present utility model, the present utility model will be further described below with reference to specific embodiments.
[0037] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "lateral", "longitudinal", "end", "edge", "side wall", "upper", "lower", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "end", "head", "tail", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the technical solutions of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0038] The present application provides an adjustable low-position transfer cart for switch cabinets, which is specifically as follows;
[0039] Reference can be made to Figures 1-5 , the present application mainly consists of a chassis 1 that plays a supporting role at the bottom, an adjusting member 3 connected to the chassis 1 through a support plate 2, and a pallet member 4 assembled between the adjusting member 3 and the chassis 1; through the cooperation between these components, the low-position transfer cart can be made to adapt to switch cabinets with different height requirements, ensuring the smooth transfer of the functional handcart.
[0040] Reference can be made to Figure 3 , the chassis 1 is processed from a steel plate bent on four sides, plays a supporting role, and a caster member 6 is installed at the bottom for transfer, and 4 rows of modulus holes are punched on each of the bent edges on both sides for assembly and connection with the adjusting member 3.
[0041] The caster member 6 includes two sets of universal wheels 61 and two sets of directional wheels 62; the two sets of universal wheels 61 are arranged at the front ends of the bottom of the chassis 1; the two sets of directional wheels 62 are arranged at the rear ends of the bottom of the chassis 1. This setting can enable both stable linear movement and flexible steering through the universal wheels in the front.
[0042] Reference can be made to Figure 3 , the support plate 2 is an L-shaped steel plate, with a total of 4 pieces. One side of the bottom is installed on the chassis 1, and the other side is assembled and connected with the adjusting member 3.
[0043] Reference can be made to Figures 1-5, the adjusting member 3 is assembled on both sides of the chassis 1 through the support plate 2 and is used to adjust the connection height between the pallet member 4 and the chassis 1; the adjusting member 3 includes an adjusting bracket 31, a screw 32 and a threaded disc 33. The adjusting bracket 31 is installed on the chassis 1. To facilitate the connection between the adjusting bracket 31, the chassis 1 and the support plate 2, the adjusting bracket 31 is set as a support rod 311 and an adjusting plate 312; the support rod 311 is an L-shaped iron plate with four rows of module holes on one side and is installed on the chassis 1. When installed, the module holes at different heights can be adjusted up and down according to needs; there are 4 adjusting plates 312 in total, which are L-shaped iron plates smaller than the support rod 311. Installation holes are opened on two surfaces and are respectively connected to the support rod 311 and the support plate 2. When installed, the module holes at different heights can be adjusted up and down according to needs. Thus, the preliminary adjustment of the height is realized through the module holes.
[0044] The screw 32 is inserted into the adjusting bracket 31 and fixed on the pallet member 4 through a rivet nut 5. The rivet nut is fixed on both sides of the middle plate 41 of the pallet member 4 by riveting to form a firm connection point for the installation of the screw 32; in order to control the movement range of the screw 32, a limit bushing 10 for restricting the movement range of the screw 32 is provided on the surface of the adjusting bracket 31 and a limit nut 11 for excessive movement is provided at the bottom of the screw 32; the limit bushing 10 and the limit nut 11 are respectively used to restrict the movement range of the screw 32 and fix the bottom position of the screw 32 to ensure that the screw 32 will not break away or move excessively during adjustment.
[0045] The threaded disc 33 is sleeved on the surface of the screw 32 and is fastened by thread connection; when the threaded disc 33 rotates, it can move up and down on the screw 32, and the fine adjustment of the height is realized through the pitch of the thread. Since the thread connection has a self-locking function, it can be stably maintained at the required height and will not change the height due to external force or vibration. The adjustment range is stepless adjustment from 0 to 90 mm, that is, precise height adjustment can be performed at any point.
[0046] In this application, the vertical distance (represented by height H) between the top platform of the adjustable switch cabinet low-position transfer vehicle and the ground is set to be adjustable between 180 and 300 mm, which also means that the adjustable height range is 120 mm; thus, it adapts to the different installation base plane heights of the switch cabinet.
[0047] To prevent the screw 32 from being too long and touching the ground, its length must be controlled. Therefore, the net adjustment amount of the height of 120 mm is divided into two parts for adjustment. This distribution method ensures that the screw 32 will not be too long and touch the ground, while meeting the requirements of height adjustment. The specific distribution is as follows:
[0048] The adjustment amount of the first part of the screw 32: 90 mm. By rotating the threaded disc 33 to adjust the screw 32, stepless adjustment can be performed between 0 and 90 mm.
[0049] The adjustment amount of the modular holes in the second part: 30 mm. It is achieved by adjusting the position of the modular holes between the chassis 1, the support rod 311 and the adjustment plate 312, realizing an additional 30-mm adjustment.
[0050] Among them, the adjustment amount of the screw rod 32 is 90 mm, which is determined by the length of the screw rod 32 and is stepless adjustment, that is, it can be adjusted within any size from 0 to 90 mm; the adjustment amount of the modular holes between the chassis 1, the support plate 2, the support rod 311 and the adjustment plate 312 is 30 mm. In actual use, if the height difference H between the bottom installation base plane of the switch cabinet in the on-site distribution room and the floor is not greater than 70 mm, then the modular holes between the chassis 1 and the support rod 311 are installed with "full-hole overlap", that is, the installation holes are installed one by one corresponding. If the height difference H between the bottom installation base plane of the switch cabinet in the on-site distribution room and the floor is greater than 70 mm, then the modular holes between the chassis 1 and the support rod 311 are installed with "half-hole overlap", that is, the upper 2 rows of modular holes of the chassis 1 and the lower 2 rows of modular holes of the support rod 311 are installed corresponding. In this way, the height H of the "half-hole overlap" is 30 mm higher than that of the "full-hole overlap". In one embodiment, if the height difference H between the bottom installation base plane of the switch cabinet in the distribution room and the floor is 50 mm, then the "full-hole overlap" is adopted, and the required height is set by adjusting the screw rod 32. In another embodiment, if the height difference H is 100 mm, then the "half-hole overlap" is adopted, and by further adjusting the screw rod 32, the height of the transfer cart is made consistent with the height of the guide rail.
[0051] By precisely adjusting the height H, it is ensured that the functional handcart can be smoothly transferred from inside the switch cabinet to the transfer cart, or transferred back from the transfer cart to inside the switch cabinet. This adjustment mechanism provides flexibility to adapt to different installation environments and height differences, ensuring that the equipment can work properly under various conditions.
[0052] For reference Figure 5 , under the working condition of the adjustment by the adjusting part 3, what is satisfied is the height adjustment of the pallet part 4, so that it adapts to the height difference between the bottom installation base plane of different switch cabinets and the floor.
[0053] Among them, the pallet part 4 is assembled on the chassis 1 through the adjusting part 3, playing the role of supporting and limiting the functional handcart; and the pallet part 4 includes a bottom plate 41, a locking plate 42 and a reset leaf spring 43; the bottom plate 41 is formed by bending a steel plate, mainly used for supporting and limiting the functional handcart, including two longitudinal bends and two transverse bends, where both ends of the locking plate 42 are in contact with the two transverse bends, and positioning sleeves 44 for limiting the functional handcart are provided at the rear ends of the bottom plate surface. The positioning bush 44 can prevent the functional handcart from exceeding the predetermined position. There are four rivet nuts 5 in total, which are divided into two groups and symmetrically arranged on both sides of the two side plates.
[0054] The locking plate 42 is installed in the slot of the bottom plate 41. There is a hook-shaped part at the front end that can lock the cabinet body of the switchgear to provide a locking function. And on both sides of the surface of the locking plate 42, a limit bolt 7 is provided. With the mutual cooperation between the limit bolt 7 and the positioning sleeve 44, additional limit protection is provided to ensure that the functional trolley moves within a predetermined position.
[0055] The reset leaf spring 43 is arranged at one end of the bottom plate 41 close to the locking plate 42. One end is fixed on the bottom plate 41, and the other end is connected to the locking plate 42. When the locking plate 42 is unlocked, the reset leaf spring 43 provides elastic force to reset the locking plate 42.
[0056] During operation, for the convenience of operation, a ball handle 8 is provided at a place where the rear end of the locking plate 42 passes through the side plate, which is used for manually operating the movement and locking functions of the locking plate. On one side surface of the two side plates close to the positioning bushing 44, a handle 9 is provided to provide convenience for holding and operating.
[0057] In the present utility model, the working steps of the device are as follows:
[0058] 1. First, adjust the height of the transfer cart. Measure the height difference between the installation base plane at the bottom of the switchgear and the floor. If the height difference is not greater than 70 mm, use the full-hole lapping method; if the height difference is greater than 70 mm, use the half-hole lapping method. By rotating the threaded disc 33, adjust the height of the screw rod 32 to achieve the required precise height. Ensure that the height of the transfer cart is consistent with the height of the switchgear guide rail.
[0059] 2. Secondly, dock the transfer cart with the switchgear. Push the transfer cart in front of the switchgear to ensure that the guide rail of the transfer cart is aligned with the guide rail inside the switchgear. Through the hook-shaped part of the locking plate 42, firmly lock the transfer cart on the cabinet body of the switchgear to prevent it from moving.
[0060] 3. Then loosen the fixing device of the functional trolley, pull out the functional trolley from the switchgear guide rail, and smoothly transfer it to the transfer cart guide rail; or ensure that the transfer cart is firmly docked with the switchgear and the guide rails are aligned, and push the functional trolley from the transfer cart guide rail into the switchgear guide rail to ensure smooth placement.
[0061] 4. Finally, unlock the locking plate 42, move the transfer cart away from in front of the switchgear, and complete the transfer work.
[0062] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope claimed by the present utility model. The scope claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. An adjustable low-position transfer vehicle for a switch cabinet, the low-position transfer vehicle is used to smoothly receive a functional handcart removed from the switch cabinet, characterized in that: include, A chassis (1) is used to support the low-position transfer vehicle, and a caster (6) is installed at the bottom of the chassis (1), and the chassis (1) is provided with a plurality of rows of modular holes; The support plates (2) are provided in four groups and are distributed and installed on the upper surface of the chassis, and the support plates (2) are provided with multiple rows of modular holes; The adjusting member (3) is provided with two groups and is assembled on both sides of the chassis (1) through the supporting plate (2); A support plate (4) is assembled and connected to the chassis (1) via an adjustment member (3) and is used for supporting and limiting the trolley; The adjusting member (3) comprises an adjusting bracket (31), a screw (32) and a threaded disc (33); the adjusting bracket (31) is mounted on the chassis (1); the adjusting bracket (31) is provided with a plurality of rows of modular holes; the screw (32) is inserted into the adjusting bracket (31) and riveted to the support plate member (4) via a rivet nut (5); the threaded disc (33) is sleeved on the surface of the screw (32); when the threaded disc (33) rotates, the screw (32) drives the support plate member (4) to perform vertical linear adjustment to adapt to the height of the functional trolley guide rail in the switch cabinet.
2. The adjustable low-position transfer vehicle for switch cabinet according to claim 1 is characterized in that: The caster member (6) comprises two sets of universal wheels (61) and two sets of fixed wheels (62); The two sets of universal wheels (61) are arranged at two ends of the front side of the bottom of the chassis (1); The two sets of directional wheels (62) are arranged at two ends of the rear side of the bottom of the chassis (1).
3. The adjustable low-position transfer vehicle for switch cabinet according to claim 1 is characterized in that: The support plate member (4) comprises a bottom plate (41), a locking plate (42) and a return leaf spring (43); The bottom plate (41) is connected to the screw rod (32) via a rivet nut (5); The locking plate (42) is transversely arranged through the middle of the bottom plate (41); The return leaf spring (43) is arranged at one end of the bottom plate (41) close to the lock plate (42) and is connected to the lock plate (42).
4. The adjustable low-position transfer vehicle for switch cabinet according to claim 3 is characterized in that: The bottom plate (41) comprises two longitudinal bends and two transverse bends, wherein two ends of the locking plate (42) are in contact with the two transverse bends, and a positioning sleeve (44) for a trolley with a limiting function is provided at the rear end of the bottom plate surface.
5. The adjustable low-position transfer vehicle for switch cabinet according to claim 3 is characterized in that: The front end of the lock plate (42) is hook-shaped and clamped with the switch cabinet, and a limit bolt (7) is provided on both sides of the surface of the lock plate (42); and a ball handle (8) is provided at a point where the rear end of the lock plate (42) passes through the side plate.
6. The adjustable low-position transfer vehicle for switch cabinet according to claim 5 is characterized in that: A handle (9) is provided on one surface of the two side panels close to the positioning sleeve (44).
7. The adjustable low-position transfer vehicle for switch cabinet according to claim 1 is characterized in that: The surface of the adjustment bracket (31) is provided with a limiting sleeve (10) for limiting the movement range of the screw rod (32); the bottom of the screw rod (32) is provided with a limiting nut (11) for excessive movement.
8. The adjustable low-position transfer vehicle for switch cabinet according to claim 1 is characterized in that: The adjustment bracket (31) comprises a support rod (311) and an adjustment plate (312); The support rod (311) is mounted on the chassis (1); One side of the adjustment plate (312) is connected to the support rod (311), and the other side is connected to the support plate (2).