Handcart anti-warping device
By installing anti-tilting frames and pressure plate frames inside the handcart and switch cabinet, and using compression springs to provide elasticity, the handcart remains stable when entering the working position. This solves the problem of poor matching between the plum blossom contact and the stationary contact caused by the tilting of the handcart, and achieves accurate docking between the handcart and the stationary contact and reduces noise.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-04-10
AI Technical Summary
When the handcart is cranked into the working position, the center of gravity shifts and causes it to tilt, resulting in excessive resistance between the plum blossom contact and the stationary contact, which produces abnormal noise when they separate.
Anti-tilting frames and pressure plate frames are installed inside the handcart and switch cabinet. Compression springs provide elasticity to keep the handcart in a stable position when it enters the working position, ensuring accurate docking of the plum blossom contact and the stationary contact, and reducing separation noise.
The anti-tilting device keeps the handcart stable inside the switch cabinet, improves the accuracy of the connection between the plum blossom contact and the stationary contact, and reduces abnormal noise during separation.
Smart Images
Figure CN224110761U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field, and relates to a handcart anti-tilting device. BACKGROUND
[0002] The handcart is one of important components of the switch cabinet, and is used for setting the circuit breaker, grounding switch and the like to realize the closing and opening of the switch cabinet. In order to adapt to the use requirements in multiple scenes, the handcart needs to be loaded with more devices such as CT, PT and lightning arrester when being set, and needs to be raised to obtain a larger device installation space, however, the related changes will cause the problem of the gravity center deviation of the handcart, resulting in the phenomenon that the handcart tilts forward when being rocked into the working position, especially when the handcart wobbly contact and the cabinet inner static contact are connected, the wobbly contact and the static contact are deviated from each other, and the tilting further causes the difference in sound when the wobbly contact and the static contact are separated. SUMMARY
[0003] The utility model discloses a handcart anti-tilting device to overcome the defects of the prior art.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0005] A handcart anti-tilting device, comprising a pressing plate frame arranged on the handcart and a movable anti-tilting frame arranged in the switch cabinet, the pressing plate frame is formed with an abutting surface for abutting against the anti-tilting frame, and further comprising a compression spring, both ends of the compression spring are connected with the anti-tilting frame and the switch cabinet respectively, and the compression spring provides an elastic force to the anti-tilting frame in the direction of the pressing plate frame.
[0006] Further, a cross beam is fixedly arranged in the switch cabinet, a movable shaft is arranged on the cross beam, the anti-tilting frame is fixedly connected with one end of the movable shaft, the compression spring is sleeved on the outer periphery of the movable shaft, and both ends of the compression spring are connected with the other end of the movable shaft and the cross beam respectively.
[0007] Further, a roller is hingedly arranged at the end of the anti-tilting frame, and the wheel surface of the roller is used for forming abutment with the abutting surface.
[0008] Further, the movable shaft is arranged in the vertical direction, the abutting surface is arranged at the top of the pressing plate frame, and the bottom of the roller abuts against the abutting surface.
[0009] Further, a limiting pin is fixedly arranged on the cross beam, and the limiting pin is arranged through the anti-tilting frame.
[0010] In summary, the utility model has the advantages that:
[0011] The utility model discloses a structure that sets up anti -warp frame and pressboard frame on the cabinet body and handcart respectively, makes both abut when handcart enters the working position in the cabinet, and the flexible pressure that produces to handcart through compression spring makes the frame to receive pressure, effectively improves the situation that the frame is inclined in the cabinet body, makes plum blossom contact and static contact more accurate, reduces the separate heterophonic. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is the structure schematic diagram of the handcart in the cabinet of the utility model.
[0013] Figure 2 It is Figure 1 The enlarged structure schematic diagram of A.
[0014] Figure 3 It is Figure 2 The cross section structure schematic diagram of anti -warp device.
[0015] Marked in the drawing: 1, crossbeam;11, anti -warp frame;12, movable shaft;13, compression spring;14, gyro wheel;15, limit bolt;2, handcart;21, pressboard frame. DETAILED DESCRIPTION
[0016] The following through specific concrete example explains the embodiment of the utility model, and the person skilled in the art can easily understand the other advantages and effects of the utility model from the content disclosed in the specification. The utility model can also be implemented or applied by another different specific embodiment, and each detail in the specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the utility model. It should be noted that the following examples and features in the examples can be combined with each other without conflict.
[0017] It should be noted that the drawings provided in the following examples only illustrate the basic concept of the utility model in a schematic manner, and the drawings only show the components related to the utility model without drawing the number, shape and size of the components during actual implementation. The type, number and proportion of each component can be changed arbitrarily during actual implementation, and the component layout type can also be more complex.
[0018] All directional indications (such as up, down, left, right, front, back, transverse, longitudinal...) in the embodiments of the utility model are only used to explain the relative position relationship, motion condition and the like between the components in a certain specific posture. If the specific posture changes, the directional indication also changes accordingly.
[0019] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the utility model may actually be an approximate parallel relationship, and the vertical relationship may actually be an approximate vertical relationship.
[0020] The utility model provides a handcart anti -warping device, set up in the switch cabinet, refer to Figure 1 , for when handcart 2 enters the working position in the switch cabinet, to handcart 2 form acting force, make handcart 2 keep stable posture, ensure that the handcart 2's plum blossom contact and the switch cabinet's static contact accurate connection.
[0021] Refer to Figure 2 And Figure 3 , anti -warping device includes anti -warping frame 11, pressing plate frame 21, compression spring 13 and crossbeam 1, wherein, pressing plate frame 21 set up in the front end of handcart 2, and pressing plate frame 21 with handcart 2 form fixed connection, thus pressing plate frame 21 with handcart 2 synchronous action.
[0022] Crossbeam 1 set up in the switch cabinet, and with the fixed connection of switch cabinet, anti -warping frame 11 is connected in crossbeam 1 through movable shaft 12, movable shaft 12 is along the vertical direction and is arranged in crossbeam 1, and anti -warping frame 11 is fixedly connected with the top end of movable shaft 12, so that anti -warping frame 11 can move within the vertical direction setting range, and compression spring 13 coaxially is sleeved on the outer periphery of movable shaft 12, and the both ends of compression spring 13 are respectively abutted or welded and connected to the lower end of movable shaft 12 and the inner wall of crossbeam 1, so that movable shaft 12 is maintained at the initial height position set by compression spring 13, and when movable shaft 12 moves along the vertical direction, the elastic force of compression spring 13 is acted on.
[0023] The lateral end of anti -warping frame 11 extends towards the direction of handcart 2, and the extension end is hingedly provided with a roller 14, and the top surface of pressing plate frame 21 is provided as an abutting surface for contacting the wheel surface of roller 14.
[0024] When handcart 2 does not enter the working position, pressing plate frame 21 does not contact with roller 14, at this time, anti -warping frame 11 is not affected by other external force, and is at the initial height position, and at this time, the bottom of the wheel surface of roller 14 is lower than the abutting surface, forming a set height difference.
[0025] During the process of handcart 2 shaking in until entering the working position, the movement of handcart 2 drives pressing plate frame 21 to approach anti -warping frame 11, until one end of the abutting surface contacts with the side position of the wheel surface of roller 14, and the further movement of handcart 2 makes the abutting surface form an abutting force to roller 14, drives anti -warping frame 11 and movable shaft 12 to lift up, until the bottom of the wheel surface of roller 14 contacts to the middle position of the abutting surface, and the lifting up of anti -warping frame 11 and movable shaft 12 forms compression to compression spring 13, so that the elastic force of compression spring 13 is reacted to pressing plate frame 21 through anti -warping frame 11, and the position of pressing plate frame 21 makes the front end of handcart 2 receive a continuous downward force, so as to limit handcart 2 to a stable posture, so that the plum blossom contact and the static contact can be accurately connected, and by increasing the accuracy of connection, the noise during connection and separation can be effectively reduced.
[0026] Further, the crossbeam 1 is further provided with a limiting bolt 15, the limiting bolt 15 is fixedly connected with the crossbeam 1 vertically, a head of the limiting bolt 15 is formed with a set height interval with the crossbeam 1, and a rod of the limiting bolt 15 is arranged in the anti-warping bracket 11, so that the deviation of the anti-warping bracket 11 is reduced, and the vertical action of the anti-warping bracket 11 is more stable.
[0027] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.
Claims
1. A hand truck anti-tilt device, comprising: The utility model relates to a kind of anti-warping frame for switch cabinet, including the pressing plate frame (21) being arranged on handcart (2) and movable anti-warping frame (11) being arranged in switch cabinet, the abutting surface for being formed on the pressing plate frame (21) and being resisted with the anti-warping frame (11), and further including compression spring (13), two ends of the compression spring (13) are connected with the anti-warping frame (11) and the switch cabinet respectively, and the compression spring (13) provides the elastic force of anti-warping frame (11) towards the direction of pressing plate frame (21).
2. A handcart anti-tilt device according to claim 1, wherein, The utility model relates to a kind of anti-warping frame for switch cabinet, including the pressing plate frame (21) being arranged on handcart (2) and movable anti-warping frame (11) being arranged in switch cabinet, the abutting surface for being formed on the pressing plate frame (21) and being resisted with the anti-warping frame (11), and further including compression spring (13), two ends of the compression spring (13) are connected with the anti-warping frame (11) and the switch cabinet respectively, and the compression spring (13) provides the elastic force of anti-warping frame (11) towards the direction of pressing plate frame (21).
3. A handcart anti-tilt device according to claim 2, wherein, The utility model relates to a kind of anti-warping frame for switch cabinet, including the pressing plate frame (21) being arranged on handcart (2) and movable anti-warping frame (11) being arranged in switch cabinet, the abutting surface for being formed on the pressing plate frame (21) and being resisted with the anti-warping frame (11), and further including compression spring (13), two ends of the compression spring (13) are connected with the anti-warping frame (11) and the switch cabinet respectively, and the compression spring (13) provides the elastic force of anti-warping frame (11) towards the direction of pressing plate frame (21).
4. A handcart anti-tilt device according to claim 3, wherein, The utility model relates to a kind of anti-warping frame for switch cabinet, including the pressing plate frame (21) being arranged on handcart (2) and movable anti-warping frame (11) being arranged in switch cabinet, the abutting surface for being formed on the pressing plate frame (21) and being resisted with the anti-warping frame (11), and further including compression spring (13), two ends of the compression spring (13) are connected with the anti-warping frame (11) and the switch cabinet respectively, and the compression spring (13) provides the elastic force of anti-warping frame (11) towards the direction of pressing plate frame (21).
5. A handcart anti-tilt device according to claim 2, wherein, The utility model relates to a kind of anti-warping frame for switch cabinet, including the pressing plate frame (21) being arranged on handcart (2) and movable anti-warping frame (11) being arranged in switch cabinet, the abutting surface for being formed on the pressing plate frame (21) and being resisted with the anti-warping frame (11), and further including compression spring (13), two ends of the compression spring (13) are connected with the anti-warping frame (11) and the switch cabinet respectively, and the compression spring (13) provides the elastic force of anti-warping frame (11) towards the direction of pressing plate frame (21).