Automatic voltage isolation switch cabinet baffle plate

Abstract

The utility model belongs to the technical field of switch cabinets, and particularly relates to an automatic voltage isolation switch cabinet baffle plate, which comprises a first isolation plate, a second isolation plate and a third isolation plate, the first isolation plate, the second isolation plate and the third isolation plate are in linkage connection through a linkage assembly and form a foldable isolation baffle, the linkage assembly comprises a first connecting rod, a second connecting rod and a third connecting rod, and a middle bearing of the first connecting rod is installed on the outer wall of the front end of the second isolation plate; two ends of the first connecting rod are respectively hinged with a second connecting rod and a third connecting rod, the other end of the second connecting rod is hinged with the first isolation plate, and the other end of the third connecting rod is hinged with the third isolation plate. The isolation baffle plate has a folding function, is more convenient to open, and saves space.

Description

Technical Field

[0001] This utility model belongs to the field of switchgear technology, and in particular relates to an automatic voltage isolation switchgear baffle. Background Technology

[0002] Automatic voltage disconnect switchgear is an important piece of equipment in power systems, used to isolate and disconnect a section of electrical equipment in ring network circuits and branch circuits to facilitate maintenance and replacement. Among them, the baffle is an important component of the switchgear. The baffle is made of insulating material and is used to isolate live parts and prevent personnel from approaching high-voltage live parts.

[0003] Chinese utility model patent CN221487158U discloses an isolation baffle for a switchgear. This baffle incorporates an adjustment device to facilitate the adjustment of the positions of two sets of concave fixing brackets. Rotating a bidirectional screw drives relative movement of two sets of sleeves, which in turn moves the two sets of concave fixing brackets for adjustment, allowing the device to fix carriers in different positions. However, this isolation baffle lacks a folding function, has a large area, and is inconvenient to operate during opening and closing. Therefore, there is an urgent need to improve existing switchgear isolation baffles and provide an automatic voltage isolation switchgear baffle with a folding function. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of the existing technology by providing a reasonably designed, simple, foldable, and compact automatic voltage isolation switchgear baffle to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic voltage disconnect switchgear baffle includes a first isolation plate, a second isolation plate, and a third isolation plate stacked in a stepped manner. The first isolation plate, the second isolation plate, and the third isolation plate are linked together by a linkage assembly to form a foldable isolation baffle. The linkage assembly includes a first link, a second link, and a third link. The middle bearing of the first link is mounted on the front outer wall of the second isolation plate. The two ends of the first link are respectively hinged to the second link and the third link. The other end of the second link is hinged to the first isolation plate, and the other end of the third link is hinged to the third isolation plate.

[0007] Preferably, the upper and lower ends of the first and second isolation plates are provided with grooves on their rear outer walls, and the upper and lower ends of the second isolation plate are fixed with first slide rails of the same length. The first slide rails are engaged and slidably located in the grooves on the rear outer walls of the first isolation plate.

[0008] Preferably, the upper and lower ends of the third isolation plate are each fixed with a second slide rail of the same length, which engages and slides in a groove on the rear outer wall of the second isolation plate.

[0009] Preferably, the second link and the third link are of equal length and are both half the length of the first link, and the second link and the third link are always parallel to each other.

[0010] Preferably, the bottom right end of the first isolation plate is threaded with a positioning bolt, and the bottom front end of the second isolation plate has two positioning holes spaced at left and right intervals on its outer wall. The two positioning holes have the same diameter and are adapted to the positioning bolt.

[0011] Preferably, a fixing frame is fixed on the outer wall at the bottom right end of the third isolation plate.

[0012] Preferably, when the third isolation plate is in the closed state, the fixing frame is inserted into the fixing block provided on the bottom inner wall of the right end of the switch cabinet body.

[0013] Preferably, the first isolation plate, the second isolation plate, and the third isolation plate are all made of insulating material.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In this invention, by using the first link, the second link, and the third link, when the third isolation plate is controlled to slide left or right, the second isolation plate can be controlled to slide in the same direction. This allows the first, second, and third isolation plates to be expanded or contracted. Compared with the prior art, this isolation baffle has a folding function, making it more convenient and space-saving when opened.

[0016] This utility model has two positioning holes. When the isolation baffle is in the unfolded or folded state, the positioning bolts can be tightened so that one end of the positioning bolt is inserted into the corresponding positioning hole, which can achieve the positioning effect of the isolation baffle and ensure the stability of the isolation baffle when unfolded or folded. Moreover, the sliding grooves opened on the outer walls of the rear ends of the first and second isolation plates, as well as the first and second slide rails, facilitate the stability of the second and third isolation plates during the sliding adjustment process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings are described as follows:

[0018] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0019] Figure 2 This is a front view schematic diagram of the overall structure of the linkage component of this utility model;

[0020] Figure 3 This is a front view schematic diagram of the second isolation plate and the first slide rail of this utility model;

[0021] Figure 4 This is a rear view schematic diagram of the first isolation plate and the slide groove of this utility model;

[0022] Figure 5 This is a top view of the first isolation plate of this utility model in its rotated and open state.

[0023] In the picture:

[0024] 1. First isolation plate; 2. Second isolation plate; 3. Third isolation plate; 4. Linkage assembly; 41. First connecting rod; 42. Second connecting rod; 43. Third connecting rod; 5. Positioning bolt; 6. First slide rail; 7. Positioning hole; 8. Second slide rail; 9. Slide groove; 10. Fixing frame; 11. Switch cabinet body; 12. Fixing block. Detailed Implementation

[0025] The embodiments described below are merely some embodiments of the present invention and do not represent all embodiments consistent with the present invention. Exemplary embodiments will now be described with reference to the accompanying drawings:

[0026] like Figure 1-5 As shown in the figure, the automatic voltage disconnect switchgear baffle of this utility model includes a first isolation plate 1, a second isolation plate 2, and a third isolation plate 3 stacked in a stepped manner. The first isolation plate 1, the second isolation plate 2, and the third isolation plate 3 are linked together by a linkage assembly 4 to form a foldable isolation baffle. The isolation baffle is rotatably installed on the left end of the switchgear body 11 and located inside the cabinet door via a rotating shaft. The linkage assembly 4 includes a first connecting rod 41, a second connecting rod 42, and a third connecting rod 43. The middle bearing of the first connecting rod 41 is installed on the front outer wall of the second isolation plate 2. The two ends of the first connecting rod 41 are respectively hinged to the second connecting rod 42 and the third connecting rod 43. The other end of the second connecting rod 42 is hinged to the first isolation plate 1, and the other end of the third connecting rod 43 is hinged to the third isolation plate 3.

[0027] In this embodiment, the linkage component 4 is used to facilitate the unfolding or retraction of the first isolation plate 1, the second isolation plate 2, and the third isolation plate 3. This isolation baffle has a folding function, which makes it more convenient and space-saving when opened. It also allows the first isolation plate 1, the second isolation plate 2, and the third isolation plate 3 to be combined to form an isolation baffle, which facilitates the isolation and protection effect.

[0028] As a preferred embodiment, based on the above structure, the first isolation plate 1, the second isolation plate 2 and the third isolation plate 3 are all made of insulating material, and the three are arranged in a stepped manner from front to back. The left end of the first isolation plate 1 is rotatably connected to the switch cabinet body 11 through a rotating shaft.

[0029] In a preferred embodiment, based on the above structure, further, the upper and lower ends of the first isolation plate 1 and the second isolation plate 2 are provided with sliding grooves 9 on their rear outer walls, and the upper and lower ends of the second isolation plate 2 are fixed with first slide rails 6 of the same length, which engage and slide in the sliding grooves 9 on the rear outer walls of the first isolation plate 1; the upper and lower ends of the third isolation plate 3 are fixed with second slide rails 8 of the same length, which engage and slide in the sliding grooves 9 on the rear outer walls of the second isolation plate 2.

[0030] In this embodiment, the use of the slide groove 9, the first slide rail 6 and the second slide rail 8 facilitates the stability of the second isolation plate 2 and the third isolation plate 3 during the sliding adjustment process.

[0031] As a preferred embodiment, based on the above structure, the second link 42 and the third link 43 are of equal length and are both half the length of the first link 41, and the second link 42 and the third link 43 are always in a parallel state.

[0032] As a preferred embodiment, based on the above structure, the bottom right end of the first isolation plate 1 is further provided with a positioning bolt 5 threaded on it, and the bottom front end outer wall of the second isolation plate 2 is provided with two positioning holes 7 spaced apart on the left and right sides. The two positioning holes 7 have the same diameter and are adapted to the positioning bolt 5.

[0033] In this embodiment, by using two positioning holes 7 and positioning bolts 5, the positioning bolts 5 can be tightened when the isolation baffle is in the unfolded or folded state, which facilitates the positioning effect of the isolation baffle and ensures the stability of the isolation baffle when unfolded or folded.

[0034] As a preferred embodiment, based on the above structure, a fixing frame 10 is fixed on the outer wall of the bottom right side of the third isolation plate 3, and a fixing block 12 is fixed on the inner wall of the bottom right side of the switch cabinet body 11. When the third isolation plate 3 is in the closed state, the fixing frame 10 and the fixing block 12 are inserted into each other.

[0035] In this embodiment, by using the insertion of the fixed frame 10 and the fixed block 12, the unfolded isolation baffle can be prevented from rotating inside the switch cabinet body 11, which facilitates stable isolation and ensures high safety.

[0036] The working principle of this utility model is as follows:

[0037] When using it, first install the isolation baffle bearing as follows: Figure 1 Inside the switch cabinet body 11 shown, when it is necessary to unfold the isolation baffle for isolation and protection, the third isolation plate 3 can be manually pushed to the right via the fixed frame 10. At this time, the third connecting rod 43 can pull the first connecting rod 41 to rotate clockwise, and the second connecting rod 42 can be rotated, which can push the second isolation plate 2 to move to the right simultaneously. This allows the first isolation plate 1, the second isolation plate 2, and the third isolation plate 3 to slide and unfold in a stepped manner. Figure 2 As shown in the diagram, the unfolded isolation barrier can achieve the purpose of safe isolation and protection;

[0038] During the process of controlling the sliding expansion or folding of the isolation baffles, the sliding grooves 9 opened on the outer rear ends of both the first isolation plate 1 and the second isolation plate 2, as well as the first slide rail 6 and the second slide rail 8, facilitate the stability of the second isolation plate 2 and the third isolation plate 3 during the left and right sliding adjustment process, and moreover... Figure 3 As shown, there are two positioning holes 7. When the isolation baffle is in the unfolded or folded state, the positioning bolts 5 can be tightened so that one end of the positioning bolts 5 can be inserted into the corresponding positioning holes 7, which can achieve the positioning effect of the isolation baffle and ensure the stability of the isolation baffle when unfolded or folded.

[0039] In summary, compared with existing technical solutions such as the prior art, this isolation baffle has a folding function, which is more convenient and saves space when opening. Moreover, when the isolation baffle is unfolded for isolation and protection, one end of the fixing block 12 can be inserted into the fixing frame 10, which can prevent the isolation baffle from rotating freely inside the switch cabinet body 11, making the protection and isolation stable and highly safe.

[0040] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any equivalent changes, modifications, substitutions, and variations made by those skilled in the art based on the concept of this utility model and on the basis of existing technology through logical analysis, reasoning, or limited experiments shall be within the scope of protection defined by the claims.

Claims

1. An automatic voltage disconnector cabinet shutter, characterized in that: It includes first isolation plate (1), second isolation plate (2) and third isolation plate (3) which are stacked in front and back in a step, the first isolation plate (1), second isolation plate (2) and third isolation plate (3) are connected by linkage assembly (4) and form foldable isolation baffle, linkage assembly (4) includes first connecting rod (41), second connecting rod (42) and third connecting rod (43), the middle part bearing of first connecting rod (41) is installed on the front end outer wall of second isolation plate (2), both ends of first connecting rod (41) are respectively hinged with second connecting rod (42) and third connecting rod (43), the other end of second connecting rod (42) is hinged with first isolation plate (1), the other end of third connecting rod (43) is hinged with third isolation plate (3).

2. The automatic voltage disconnector cabinet shutter according to claim 1, characterized in that: The rear outer wall of the upper and lower ends of the first isolation plate (1) and the second isolation plate (2) is provided with a sliding groove (9), the front outer wall of the upper and lower ends of the second isolation plate (2) is fixed with a first sliding rail (6) which is equal in length, the first sliding rail (6) is engaged and slid in the sliding groove (9) of the rear outer wall of the first isolation plate (1).

3. The automatic voltage disconnector cabinet shutter according to claim 2, characterized in that: The front outer wall of the upper and lower ends of the third isolation plate (3) is fixed with a second sliding rail (8) which is equal in length, the second sliding rail (8) is engaged and slid in the sliding groove (9) of the rear outer wall of the second isolation plate (2).

4. The automatic voltage disconnector cabinet shutter according to claim 1, characterized in that: The lengths of the second connecting rod (42) and the third connecting rod (43) are equal and are half of the length of the first connecting rod (41), the second connecting rod (42) and the third connecting rod (43) are always in parallel state.

5. The automatic voltage disconnector cabinet shutter according to claim 1, characterized in that: The right end bottom of the first isolation plate (1) is threadedly installed with a positioning bolt (5), the front outer wall of the bottom of the second isolation plate (2) is provided with two positioning holes (7) which are distributed at left and right, the diameters of the two positioning holes (7) are equal and are matched with the positioning bolt (5).

6. The automatic voltage disconnector cabinet shutter according to claim 1, characterized in that: The front outer wall of the right end bottom of the third isolation plate (3) is fixed with a fixed frame (10).

7. The automatic voltage disconnector cabinet shutter according to claim 6, characterized in that: When the third isolation plate (3) is in the closed state, the fixed frame (10) is inserted with the fixed block (12) which is arranged on the right end bottom inner wall of the switch cabinet body (11).

8. The automatic voltage disconnector cabinet shutter according to claim 1, characterized in that: The first isolation plate (1), the second isolation plate (2) and the third isolation plate (3) are all of insulating material.

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