Closed high-voltage switch cabinet handcart baffle plate unobstructed guide rail device
By using a ball bearing frame and steel ball structure in the guide rail of the closed high-voltage switchgear handcart, the problem of jamming and stuck door was solved, and smooth movement of the door was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 弓箭
- Filing Date
- 2025-04-18
- Publication Date
- 2026-05-19
AI Technical Summary
The existing enclosed switchgear handcart has problems with the movement door getting stuck, jammed, and unable to be fully turned.
A ball bearing holder is installed in a through-hole groove. The ball bearing groove contains steel balls, which contact the shaft to reduce friction. The gap between the slider and the shaft is small to prevent misalignment.
It effectively reduces friction when the sliding door moves, prevents jamming and sticking, and improves the smoothness of the sliding door's movement.
Smart Images
Figure CN224264545U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of barrier-free shaft guide rail technology, specifically a barrier-free guide rail device for a closed high-voltage switchgear handcart baffle. Background Technology
[0002] Currently, in 35 kV and 10 kV KYN-type enclosed switchgear for power systems, the rear wall contact box of the handcart type uses upper and lower partitions (valve) to shield the stationary contacts and ensure electrical safety distance. The valve is connected to two steel rails through oval holes, allowing the baffle (valve) to slide up and down, thus opening and closing the contact box of the switchgear.
[0003] Currently, the valves of 35kV and 10kV enclosed switchgear in substations are slid up and down by passing through elliptical holes and connecting to two steel rails. This often results in jamming, jamming, and deformation, and the circuit breaker trolley sometimes fails to reach its designated position. Therefore, a non-obstructive guide rail device for the valves of enclosed high-voltage switchgear trolleys is needed to address these issues. Utility Model Content
[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.
[0005] In view of the problems existing in the existing closed switchgear handcart unblocked shaft rod guide rail, this utility model is proposed.
[0006] Therefore, the purpose of this utility model is to provide a closed high-voltage switchgear handcart baffle-free guide rail device. The ball bearings installed in the through-hole groove can reduce the friction with the shaft, thereby effectively reducing the jamming and jamming of the movable door during movement. When the movable door moves, the steel balls in the ball bearing groove replace the contact with the shaft. Since the surfaces of the steel balls and the shaft are smooth, the friction is greatly reduced. Moreover, the gap between the slider and the shaft is small, and no deviation occurs during movement. Compared with the prior art, the practicality is greatly increased.
[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:
[0008] A closed high-voltage switchgear handcart baffle-free guide rail device, which includes a guide rail assembly;
[0009] The guide rail assembly includes a shaft and a slider. The slider has a through-hole groove, and a ball bearing frame is installed in the through-hole groove. The ball bearing frame has a ball groove, and steel balls are installed in the ball groove. Limiting rings are provided at both ends of the ball bearing frame, and the limiting rings are fixedly connected to the through-hole groove.
[0010] As a preferred embodiment of the enclosed high-voltage switchgear handcart baffle rail device of this utility model, wherein: the slider is provided with connecting holes on both sides, and the slider is fixedly connected to the movable door through the connecting holes and screws.
[0011] As a preferred embodiment of the enclosed high-voltage switchgear handcart baffle unobstructed guide rail device of this utility model, wherein: threads are provided at the openings at both ends of the through hole groove, and the limiting ring is screwed to the through hole groove by the threads.
[0012] As a preferred embodiment of the enclosed high-voltage switchgear handcart baffle-free guide rail device described in this utility model, the ball grooves are a plurality of ones, which are evenly distributed on the ball frame.
[0013] As a preferred embodiment of the enclosed high-voltage switchgear handcart baffle unobstructed guide rail device described in this utility model, there are several steel balls distributed in the ball groove and rotatably connected to the ball groove.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the ball bearing bracket installed in the through hole groove can reduce the friction with the shaft, thereby effectively reducing the jamming and jamming of the movable door during movement. When the movable door moves, the steel balls in the ball bearing groove replace itself in contact with the shaft. Since the surfaces of the steel balls and the shaft are smooth, the friction between the movable door and the shaft is greatly reduced. Moreover, the gap between the slider and the shaft is small, and no deviation will occur during movement. Compared with the prior art, the practicality is greatly increased. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the slider of this utility model;
[0018] Figure 3 This is a three-dimensional structural diagram of the through-hole groove of this utility model;
[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the ball bearing frame of this utility model.
[0020] In the diagram: 100 guide rail assembly, 110 shaft, 120 slider, 130 through hole groove, 140 ball bearing holder, 150 ball bearing groove, 160 steel ball, 170 limit ring, 180 connecting hole. Detailed Implementation
[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0023] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0025] This utility model provides the following technical solution: a closed high-voltage switchgear handcart baffle guide rail device. During use, the ball bearing frame installed in the through hole groove can reduce the friction with the shaft, thereby effectively reducing the jamming and jamming of the movable door when it moves. When the movable door moves, the steel balls in the ball bearing groove replace itself to contact the shaft. Since the surfaces of the steel balls and the shaft are smooth, the friction is greatly reduced. Moreover, the gap between the slider and the shaft is small, and no deviation will occur when it moves. Compared with the prior art, the practicality is greatly increased.
[0026] Figures 1-4 The diagram shown is a structural schematic of the first embodiment of the unobstructed guide rail device for the baffle of a closed high-voltage switchgear. Please refer to [link / reference]. Figures 1-4 The main body of the enclosed high-voltage switchgear handcart baffle unobstructed guide rail device of this embodiment includes a guide rail assembly 100.
[0027] The guide rail assembly 100 includes a shaft 110 and a slider 120. The slider 120 has a through hole groove 130. A ball bearing 140 is installed in the through hole groove 130. The ball bearing 140 has a ball groove 150. A steel ball 160 is installed in the ball groove 150. Limiting rings 170 are provided at both ends of the ball bearing 140. The limiting rings 170 are fixedly connected to the through hole groove 130.
[0028] The slider 120 has connecting holes 180 on both sides. The slider 120 is fixedly connected to the partition through the connecting holes 180 and screws. The through hole groove 130 has threads at both ends. The limiting ring 170 is screwed to the through hole groove 130 through the threads. There are several ball grooves 150, which are evenly distributed on the ball frame 140. There are several steel balls 160, which are distributed in the ball grooves 150 and are rotatably connected to the ball grooves 150.
[0029] The guide rail assembly 100 is used to prevent the movable door from jamming or getting stuck during movement. Specifically, it consists of a shaft 110 and a slider 120. The shaft 110 is used to connect the slider 120 and support the slider 120 for movement. The slider 120 is used to connect the movable door to ensure smooth movement of the movable door. The slider 120 is provided with a through-hole groove 130 to support the ball bearing frame 140. The ball bearing frame 140 is composed of several ball grooves 150 and several steel balls 160. The ball bearing frame 140 is used to connect the slider 120 and the shaft 110 to achieve smooth sliding between the slider 120 and the shaft 110. The ball grooves 150 are used to support the steel balls 160, which are used to contact the shaft 110. The limiting ring 170 is used to fix the ball bearing frame 140 in the inner cavity of the through-hole groove 130 to prevent it from falling off. The connecting hole 180 is used to connect the movable door and the slider 120 with screws.
[0030] The ball bearing bracket 140 installed in the through-hole groove 130 can reduce the friction with the shaft 110, thereby effectively reducing the possibility of jamming or jamming when the movable door moves. When the movable door moves, the steel ball 160 in the ball bearing groove 150 takes over the contact with the shaft 110. Since the surfaces of the steel ball 160 and the shaft 110 are both smooth, the friction is greatly reduced. In addition, the gap between the gap slider 120 and the shaft 110 is small, so there will be no deviation when moving. Compared with the prior art, the practicality is greatly increased.
[0031] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A closed-type high-voltage switchgear handcart baffle-free guide rail device, characterized in that: Includes guide rail assembly (100); The guide rail assembly (100) includes a shaft (110) and a slider (120). The slider (120) has a through hole groove (130). A ball bearing frame (140) is installed in the through hole groove (130). The ball bearing frame (140) has a ball groove (150). A steel ball (160) is installed in the ball groove (150). Limiting rings (170) are provided at both ends of the ball bearing frame (140). The limiting rings (170) are fixedly connected to the through hole groove (130).
2. The unobstructed guide rail device for the baffle of a closed high-voltage switchgear according to claim 1, characterized in that: The slider (120) has connecting holes (180) on both sides, and the slider (120) is fixedly connected to the partition through the connecting holes (180) and screws.
3. The unobstructed guide rail device for the baffle of a closed high-voltage switchgear according to claim 1, characterized in that: The through-hole groove (130) has threads at both ends of its opening, and the limiting ring (170) is screwed into the through-hole groove (130) by the threads.
4. The unobstructed guide rail device for the baffle of a closed high-voltage switchgear according to claim 1, characterized in that: There are several ball grooves (150), which are evenly distributed on the ball frame (140).
5. The unobstructed guide rail device for the baffle of a closed high-voltage switchgear according to claim 1, characterized in that: There are several steel balls (160), which are distributed in the ball groove (150) and are rotatably connected to the ball groove (150).