10kv switch maintenance trolley device with height convenient to adjust

Abstract

The utility model discloses a 10kV switch maintenance trolley device of convenient height -adjusting, including the car body structure, the top of car body structure is connected switch receiving tray through front elevating gear and rear elevating gear, and front elevating gear and rear elevating gear all include two support seat with car body structure and switch receiving tray connection respectively and make switch receiving tray elevating X -shaped movable connecting piece, the both sides of support seat all are provided with guide rail, and the upper and lower fixed end of X -shaped movable connecting piece is fixed setting respectively in the guide rail one end in upper and lower support seat, and the upper and lower sides sliding end of X -shaped movable connecting piece can slide in the guide rail in upper and lower support seat, one end of support seat setting on the car body structure is provided with hand wheel transmission link and rotary hand wheel, and hand wheel transmission link passes through support seat one end, and is connected with the sliding end of X -shaped movable connecting piece, through the rotation of rotary hand wheel, makes hand wheel transmission link drive X -shaped movable connecting piece move in the guide rail, and then makes switch receiving tray go up and down.

Description

Technical Field

[0001] This utility model relates to the technical field of electrical switchgear or power distribution equipment in the electrical industry, and specifically to a 10kV switch maintenance trolley device with convenient height adjustment. Background Technology

[0002] The 10kV electrical switch maintenance trolley is a device used to adjust the status of a 10kV electrical switch in the maintenance or testing position. It is usually composed of screws, bolts, steering wheels, shafts, limit devices, etc. In use, the maintenance trolley is pushed to the corresponding position, and the limit devices are aligned by rotating the bolts on the four screws to fix the trolley, thereby achieving the purpose of adjusting the status of the 10kV electrical switch in the maintenance or testing position.

[0003] However, when adjusting the bolt alignment limit device on the screw, the two bolts at the front end are difficult to adjust due to space constraints caused by their proximity to the cabinet. Turning the bolts is time-consuming and laborious, making the alignment limit device quite troublesome. Therefore, a convenient height adjustment 10kV switch maintenance trolley device is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a convenient height-adjustable 10kV switch maintenance trolley device to address the aforementioned problems, thereby solving the time-consuming and laborious problem of aligning the limit device of the switch maintenance trolley when adjusting the status of the 10kV electrical switch in the maintenance or test position.

[0005] The technical solution of this utility model is as follows:

[0006] A convenient height-adjustable 10kV switch maintenance trolley device includes a trolley body structure. A switch receiving tray is connected to the top of the trolley body structure via a front lifting device and a rear lifting device. Both the front and rear lifting devices include two support seats connected to the trolley body structure and the switch receiving tray respectively, and an X-shaped movable connector for raising and lowering the switch receiving tray. Guide rails are provided on both sides of the support seats, and the upper and lower fixed ends of the X-shaped movable connector are respectively fixed to one end of the guide rails in the upper and lower support seats. The upper and lower sliding ends of the X-shaped movable connector can slide within the guide rails in the upper and lower support seats. A handwheel drive rod and a rotating handwheel are provided at one end of the support seat on the trolley body structure. The handwheel drive rod passes through one end of the support seat and connects to the sliding end of the X-shaped movable connector. By rotating the handwheel, the handwheel drive rod drives the X-shaped movable connector to move within the guide rails, thereby raising and lowering the switch receiving tray.

[0007] With the above structure, the X-shaped movable connector is constrained at both ends, and the upper and lower fixed ends are rigidly locked at the end of the support base guide rail, forming a stable rotation fulcrum. The sliding end is linearly constrained by the guide rail throughout its entire stroke, completely eliminating the lateral sway of the traditional scissor mechanism. The front and rear devices are independently controlled, and asynchronous leveling is achieved through the precision of the threaded transmission. Furthermore, the handwheel transmission rod is horizontally arranged on the side of the vehicle body, completely avoiding the restriction of the cabinet on the bottom operating space.

[0008] Furthermore, the rotating handwheel is fixedly connected to the handwheel transmission rod, and the surface of the handwheel transmission rod is provided with threads. By rotating the handwheel, the threads on the surface of the handwheel transmission rod cause the handwheel transmission rod to rotate in or out of the support seat, thereby causing the sliding end of the X-shaped movable connector to slide left and right in the guide rail.

[0009] Through the aforementioned structure, the threaded connection enables a high-precision conversion between rotary motion and linear motion, ensuring accurate and controllable lifting height. The inclined surface friction self-locking characteristic of the threaded pair (friction angle > thread helix angle) allows the lifting device to automatically lock at any height without the need for an additional braking mechanism. Furthermore, the handwheel can be turned to set different radii according to the required torque to meet the needs of the device.

[0010] Furthermore, the X-shaped movable connector adopts a double-layer steel plate reinforced structure or is provided with reinforcing ribs.

[0011] The above structure gives the X-shaped movable connector greater strength to support the switch receiving tray, and the X-shaped movable connector can be made into a more stable composite structure or have additional reinforcing ribs depending on the load-bearing requirements.

[0012] Furthermore, the front lifting device and the rear lifting device are symmetrically arranged along the center line of the vehicle body structure.

[0013] Furthermore, the front lifting device and the rear lifting device are enclosed in a fully enclosed rubber shell, with only part of the handwheel drive rod and the rotating handwheel exposed.

[0014] Through the above structure, the fully enclosed rubber shell can form a completely sealed structure for the lifting device, preventing dust, metal shavings, oil stains, etc. from entering the transmission components, avoiding mechanical jamming or wear, and extending the life of the device; and the enclosed structure isolates moving parts (such as the hinge points of X-shaped connectors), preventing operators' hands and clothing from being caught, eliminating the risk of pinching injuries; at the same time, the rubber shell absorbs vibrations and impacts during the lifting process (such as the instantaneous load when the switch is moved), protecting the internal precision transmission structure.

[0015] Furthermore, left and right limit plates for the switch are provided on the left and right sides of the switch receiving tray.

[0016] With the above structure, the left and right limit plates of the switch restrict the switch on the switch receiving tray to prevent it from falling.

[0017] Furthermore, the upper surface of the switch receiving tray is provided with left and right limit protrusions for the switch.

[0018] With the above structure, the left and right limit protrusions behind the switch can restrict the position of the switch on the switch receiving tray.

[0019] Furthermore, the front end of the switch receiving tray is rigidly connected to a columnar alignment device, and the front ends of the switch receiving tray are provided with flat plate alignment devices.

[0020] With the above structure, the column alignment device and the flat plate alignment device can be more easily aligned with the corresponding structure of the cabinet.

[0021] Furthermore, a metal rod is provided through the switch receiving tray, and the front end and rear end of the metal rod are respectively connected to a limit buckle front end buckle and a rear end operating handle.

[0022] With the above structure, a front limit buckle and a rear operating handle are provided. After the device is aligned, it enters the cabinet through the front limit buckle. By operating the rear operating handle of the limit buckle, the front limit buckle is locked, thereby fixing the switch maintenance trolley.

[0023] Furthermore, wheels are provided below the vehicle body structure, and the wheels are omnidirectional, with each wheel equipped with a pedal-operated braking device.

[0024] With the above structure, the omnidirectional wheels facilitate movement in all directions, and the pedal-operated braking device on the wheels can prevent the device from moving during operation.

[0025] Compared with existing technologies, the beneficial effects of this utility model are:

[0026] 1. The design is reasonable and the structure is simple and practical, making it easy for the switch maintenance trolley to use.

[0027] 2. Compared with traditional switch maintenance trolleys, the lifting device reduces the number of lifting operations from 4 to 2, thereby increasing the operation speed.

[0028] 3. Compared with traditional switch maintenance trolleys, the lifting device is adjusted from below the tray to the side, which improves the convenience of alignment and adjustment operations; due to cabinet limitations, existing technology has the following disadvantages: small adjustment range per operation, which makes it easy to bump hands.

[0029] 4. Lifting devices can be added or removed as needed according to load-bearing requirements, making it suitable for switch cabinets of various sizes. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the device in this application.

[0031] Figure 2 This is a right view of the overall structure of the device in this application.

[0032] Figure 3 This is a top view of the overall structure of the device in this application.

[0033] Reference numerals: 1-Rotating handwheel, 2-Guide rail, 3-Handwheel transmission rod, 4-X-shaped movable connector, 5-Columnar alignment device, 6-Plate alignment device, 7-Limit buckle front buckle, 8-Rear operating handle, 9-Left and right limit protrusions after switch, 10-Rear lifting device, 11-Front lifting device, 12-Car body structure, 13-Wheel, 14-Switch receiving tray. Detailed Implementation

[0034] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0036] Please see Figure 1-3 A convenient height-adjustable 10kV switch maintenance trolley device, such as... Figure 1 As shown, the device includes a vehicle body structure 12. A switch receiving tray 14 is connected to the top of the vehicle body structure 12 via a front lifting device 11 and a rear lifting device 10. Both the front lifting device 11 and the rear lifting device 10 include two support seats connected to the vehicle body structure 12 and the switch receiving tray 14, respectively, and an X-shaped movable connector 4 for raising and lowering the switch receiving tray 14. Guide rails 2 are provided on both sides of the support seats, and the upper and lower fixed ends of the X-shaped movable connector 4 are respectively fixed to one end of the guide rail in the upper and lower support seats. The upper and lower sliding ends of the X-shaped movable connector 4 can slide within the guide rail in the upper and lower support seats. A handwheel transmission rod 3 and a rotating handwheel 1 are provided at one end of the support seat on the vehicle body structure 12. The handwheel transmission rod 3 passes through one end of the support seat and is connected to the sliding end of the X-shaped movable connector 4. By rotating the handwheel 1, the handwheel transmission rod 3 drives the X-shaped movable connector 4 to move in the guide rail 2, thereby raising and lowering the switch receiving tray 14.

[0037] In addition, at least two reserved standardized installation interfaces (such as ISO holes) are provided at equal intervals on the upper part of the vehicle body structure 12 and the lower part of the switch receiving tray 14, which can be used to install the front lifting device 11 or the rear lifting device 10.

[0038] The handwheel 1 is fixedly connected to the handwheel transmission rod 3, and the surface of the handwheel transmission rod is threaded. By rotating the handwheel, the thread on the surface of the handwheel transmission rod causes the handwheel transmission rod to rotate in or out of the support seat, thereby causing the sliding end of the X-shaped movable connector to slide left and right in the guide rail.

[0039] The X-shaped movable connector adopts a double-layer steel plate reinforced structure or is equipped with reinforcing ribs. The front and rear lifting devices are symmetrically arranged along the centerline of the vehicle body structure. The front and rear lifting devices are enclosed in a fully enclosed rubber shell, with only part of the handwheel drive rod and the rotating handwheel exposed.

[0040] like Figure 2 and Figure 3 As shown, left and right limit plates for the switch are provided on both sides of the switch receiving tray. A rear left and right limit protrusion is provided at one end of the upper surface of the switch receiving tray. A cylindrical alignment device is rigidly connected to the front end of the switch receiving tray, and flat alignment devices are provided on both sides of the front end of the switch receiving tray. A tapered guide head (which is detachable) is added to the end of the cylindrical alignment device to improve the success rate of insertion into the cabinet guide groove; a scale is provided on the surface of the flat alignment device to assist visual positioning. A metal rod runs through the switch receiving tray, with a limit buckle at the front end and an operating handle at the rear end of the metal rod. The combined design of the cylindrical alignment device and the flat alignment device allows for quick alignment of the cabinet structure, reducing repeated adjustment time.

[0041] The wheels are located beneath the vehicle body structure and are omnidirectional, each equipped with a pedal-operated braking device. The vehicle body frame is constructed from welded square steel, with key weld points subjected to ultrasonic flaw detection.

[0042] Working principle: The switch maintenance trolley is moved to the vicinity of the switch cabinet to be operated. After the moving trolley structure 12 aligns the columnar alignment device 5 and the flat plate alignment device 6 roughly with the corresponding positions on the cabinet, the handwheels 1 of the rear lifting device 10 and the front lifting device 11 are rotated. Through the handwheel transmission rod 3, the X-shaped movable connecting piece 4 is raised and lowered, which in turn raises and lowers the switch receiving tray 14, so that the columnar alignment device 5 and the flat plate alignment device 6 are aligned with the corresponding structures on the cabinet. This pushes the trolley structure 12, causing the front end of the limit latch 7 to enter the cabinet. By operating the limit latch... The rear operating handle 8 engages the front latch 7 of the limit buckle, thereby securing the switch maintenance trolley and simultaneously activating the foot brake of the wheel 13. The switch is moved onto the switch receiving tray 14 and secured to the switch receiving tray 14 by the left and right limit protrusions 9. The rear operating handle 8 of the limit buckle disengages the front latch 7 from the cabinet, releasing the foot brake of the wheel 13. The trolley structure 12 is pulled backward, causing the column alignment device 5 and the flat alignment device 6 to disengage from the cabinet, thus completing one operation.

[0043] Compared to traditional switch maintenance trolleys, the lifting device, adjusted from below the tray to the side, significantly improves the ease of alignment and adjustment, overcoming the inconvenience of height adjustment caused by the original cabinet distance limitations. Compared to traditional switch maintenance trolleys, the lifting device, with its handwheel adjustment, allows for greater adjustment range per operation, reducing workload and enhancing the device's overall convenience.

[0044] The embodiments described above merely illustrate specific implementation methods of this application, and while the descriptions are detailed and specific, they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the technical solution of this application, and these modifications and improvements all fall within the scope of protection of this application.

Claims

1. A convenient height-adjustable 10kV switch maintenance trolley device, characterized in that, The system includes a vehicle body structure (12), on which a switch receiving tray (14) is connected via a front lifting device (11) and a rear lifting device (10). Both the front lifting device (11) and the rear lifting device (10) include two support seats that are respectively connected to the vehicle body structure (12) and the switch receiving tray (14), and an X-shaped movable connector (4) that raises and lowers the switch receiving tray (14). Guide rails (2) are provided on both sides of the support seats, and the upper and lower fixed ends of the X-shaped movable connector (4) are respectively fixedly installed on the upper and lower sides. At one end of the guide rail in the support base, the upper and lower sliding ends of the X-shaped movable connector (4) can slide within the guide rail in the upper and lower support bases; at one end of the support base set on the vehicle body structure (12), there is a handwheel transmission rod (3) and a rotating handwheel (1). The handwheel transmission rod (3) passes through one end of the support base and is connected to the sliding end of the X-shaped movable connector (4); by rotating the handwheel (1), the handwheel transmission rod (3) drives the X-shaped movable connector (4) to move in the guide rail (2), thereby causing the switch receiving tray (14) to rise and fall.

2. The 10kV switch maintenance trolley device with convenient height adjustment according to claim 1, characterized in that, The rotating handwheel (1) is fixedly connected to the handwheel transmission rod (3), and the surface of the handwheel transmission rod (3) is provided with threads. By rotating the handwheel (1), the threads on the surface of the handwheel transmission rod (3) cause the handwheel transmission rod (3) to rotate in or out of the support seat, thereby causing the sliding end of the X-shaped movable connector (4) to slide left and right in the guide rail (2).

3. A convenient height-adjustable 10kV switch maintenance trolley device according to claim 1 or 2, characterized in that, The X-shaped movable connector (4) adopts a double-layer steel plate reinforced structure or is provided with reinforcing ribs.

4. The 10kV switch maintenance trolley device with convenient height adjustment according to claim 1, characterized in that, The front lifting device (11) and the rear lifting device (10) are symmetrically arranged along the center line of the vehicle body structure (12).

5. A convenient height-adjustable 10kV switch maintenance trolley device according to claim 1 or 4, characterized in that, The front lifting device (11) and the rear lifting device (10) are enclosed in a fully enclosed rubber shell, with only part of the handwheel drive rod (3) and the rotating handwheel (1) exposed.

6. The 10kV switch maintenance trolley device with convenient height adjustment according to claim 1, characterized in that, The left and right limit plates (15) of the switch receiving tray (14) are provided on the left and right sides.

7. A convenient height-adjustable 10kV switch maintenance trolley device according to claim 6, characterized in that, The upper surface of the switch receiving tray (14) is provided with a left and right limit protrusion (9) for the switch.

8. A convenient height-adjustable 10kV switch maintenance trolley device according to claim 7, characterized in that, The front end of the switch receiving tray (14) is rigidly connected to a columnar alignment device (5), and the front ends of the switch receiving tray (14) are provided with flat plate alignment devices (6).

9. A convenient height-adjustable 10kV switch maintenance trolley device according to claim 8, characterized in that, A metal rod is provided through the switch receiving tray (14), and the front end and rear end of the metal rod are respectively connected to the front end buckle (7) of the limit buckle and the rear end operating handle (8).

10. A convenient height-adjustable 10kV switch maintenance trolley device according to claim 1, characterized in that, The vehicle body structure (12) is provided with wheels (13) below it, and the wheels (13) are omnidirectional wheels, each wheel is provided with a pedal-type braking device.

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