Compensation opening and closing indication board structure

Abstract

The utility model discloses a compensation opening and closing indication board structure which comprises an operation shaft and a support, the operation shaft rotates along the axial direction, one end of the operation shaft is connected with a grounding switch, the other end of the operation shaft is arranged on the support in a penetrating mode, the axial end of an indication board is provided with a rotating shaft, the rotating shaft is arranged on the support in a penetrating mode, and the support is provided with a linkage structure. Two ends of the linkage structure are respectively connected with the rotating shaft and the operating shaft; the indication board is respectively provided with a switching-on identifier and a switching-off identifier which are used for indicating switching-on and switching-off of the grounding switch. According to the utility model, the operation shaft is linked with the grounding switch and the indication board, and the grounding knife action of the grounding switch is synchronously matched with the action of the indication board, so that a user can clearly obtain the current state of the grounding switch and the information about whether the action is in place by observing the position of the indication board, and the electrical five-prevention requirement can be better met.

Description

Technical Field

[0001] The utility model belongs to the field of switch cabinet equipment and relates to a compensation closing and opening indicator structure. Background Art

[0002] According to the requirements of electrical five-prevention, when the handcart in the switch cabinet is in the working position, it is strictly prohibited to close the grounding switch. When the grounding switch is closed, it is strictly prohibited to roll the handcart into the working position.

[0003] The operating device of the grounding switch of the existing switch cabinet products is usually arranged inside. When the user operates the closing and opening of the grounding switch, it is generally realized by the cooperation of an external manual structure and a transmission structure to achieve the internal action, or by setting a motor drive and cooperating with an external key switch form to control. The current method does not provide reasonable feedback to the user on whether the grounding knife inside the switch cabinet has moved in place, whether it has been fully closed or opened. Especially affected by the machining error, assembly error of the transmission parts, and the transmission loss during long-term use, the user cannot clearly know the feedback of the grounding switch state in place, so it cannot meet the requirements of electrical five-prevention. Content of the Utility Model

[0004] The utility model aims to overcome the deficiencies of the prior art and provides a compensation closing and opening indicator structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A compensation closing and opening indicator structure includes an operating shaft that rotates axially and a bracket. One end of the operating shaft is connected to the grounding switch, and the other end passes through the bracket. A rotating shaft is provided at the axial end of the indicator board, and the rotating shaft passes through the bracket. A linkage structure is provided on the bracket, and both ends of the linkage structure are respectively connected to the rotating shaft and the operating shaft; a closing indicator and an opening indicator for indicating the closing and opening of the grounding switch are respectively arranged on the indicator board, and the closing indicator and the opening indicator are arranged along the circumferential direction of the indicator board.

[0007] Furthermore, it further includes a front plate, and an observation window is penetratedly opened on the front plate. The observation window faces the indicator board. During the rotation of the indicator board, one of the closing indicator and the opening indicator is located in the observation window.

[0008] Furthermore, the linkage structure includes a dial. The dial is fixedly connected to one end of the rotating shaft. A torsion spring is sleeved on the rotating shaft, and both ends of the torsion spring are respectively connected to the bracket and the rotating shaft; a turntable sleeved on the operating shaft is also included. A connecting rod is hinged on the turntable, and a dial rod is provided on the dial, and the dial rod passes through the connecting rod.

[0009] Further, the rotation range of the paddle includes a first position and a second position. In the first position, the closing identification is aligned with the observation window, and in the second position, the opening identification is aligned with the observation window.

[0010] Further, the first position and the second position form an angle of °.

[0011] Further, a chute is provided on the connecting rod, and the lever passes through the chute and can move within the chute.

[0012] Further, a limiting rod is fixedly connected to the bracket, and the paddle abuts against the limiting rod in the second position.

[0013] In summary, the beneficial effects of the present utility model are as follows:

[0014] The present utility model adopts the method of linking the earthing switch and the indicating plate through the operating shaft, synchronously coordinating the action of the earthing knife of the earthing switch and the action of the indicating plate, enabling the user to clearly obtain the current state of the earthing switch and the information on whether the action is in place by observing the position of the indicating plate, so as to better implement the requirements of the five electrical anti-maloperation measures; and using the rotation of the operating shaft as the transmission for the actions of the earthing knife and the indicating plate, the transmission structure is further simplified, effectively improving the transmission efficiency and reducing the influence of machining errors, assembly errors and transmission losses; further, in the linkage structure of the operating shaft and the indicating plate, an action compensation of the operating shaft relative to the indicating plate is reserved, so that even if there is transmission loss on the operating shaft, it does not affect the action in place of the indicating plate, ensuring that the indicating plate can correctly indicate the state information of the earthing switch and ensuring the requirements of the five electrical anti-maloperation measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic connection structure diagram of the earthing switch, operating shaft and linkage structure in the present utility model.

[0016] Figure 2 is a schematic structure diagram of the indicating plate structure of the present utility model.

[0017] Figure 3 is Figure 2 the schematic explosion structure diagram in.

[0018] Figure 4 is Figure 2 the schematic structure diagram of the closing state and opening state in the A direction in.

[0019] Figure 5 is Figure 2 the schematic structure diagram of the closing state in the B direction in.

[0020] Figure 6 is Figure 5Schematic structural diagram of the switching process from the closing state to the opening state. Identifications in the figure: 1. Linkage structure; 11. Bracket; 12. Indicator plate; 121. Identification; 13. Rotating shaft; 131. Pin shaft; 14. Torsion spring; 15. Paddle; 151. Poking rod; 16. Limiting rod; 17. Observation window; 2. Operating shaft; 21. Turntable; 22. Connecting rod; 221. Chute; 3. Earthing switch. Specific implementation mode

[0021] The following uses specific specific examples to illustrate the implementation modes of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation modes. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0022] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present utility model in a schematic manner. Therefore, only the components related to the present utility model are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0023] All directional indicators (such as up, down, left, right, front, back, horizontal, vertical...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture. If this specific posture changes, then the directional indicators will also change accordingly.

[0024] Due to reasons such as installation errors, the parallel relationship referred to in the embodiments of the present utility model may actually be an approximate parallel relationship, and the vertical relationship may actually be an approximate vertical relationship.

[0025] The present utility model provides a compensation opening and closing indicator plate structure, which is arranged inside the switch cabinet and is mainly used to make the movement of the indicator plate 12 correctly correspond to the current state of the earthing switch when the earthing switch 3 that controls the opening and closing of the earthing switch is linked.

[0026] The switch cabinet set in this embodiment refers to Figure 1, the sign 12 is arranged at the front end of the switch cabinet, while the moving part in the earthing switch, that is, the earthing knife 3, is arranged at the rear end of the switch cabinet. The earthing knife 3 is connected and driven to the sign 12 through an operating shaft 2. For the on / off of the earthing switch, in this embodiment, an electric structure can be arranged at the rear end to directly drive the movement of the earthing knife 3, and then drive the rotation of the operating shaft 2 through the earthing knife 3 to transmit to the front end, and then indicate the current state of the earthing switch through the position of the sign 12.

[0027] Specifically, referring to Figure 2 and Figure 3 , the sign 12 is arranged on a linkage structure 1. The linkage structure 1 includes a bracket 11. One end of the operating shaft 2 penetrates through the bracket 11. A rotating shaft 13 is arranged on the sign 12 along the axial direction. The rotating shaft 13 penetrates through the bracket 11. The sign 12 is provided with marks 121 for indicating the open and closed states of the earthing switch respectively, including an open mark and a closed mark arranged circumferentially along the sign 12.

[0028] A torsion spring 14 is sleeved on the rotating shaft 13. A pin shaft 131 is radially penetrated through the rotating shaft 13. Two ends of the torsion spring 14 are respectively connected to the bracket 11 and the pin shaft 131 to provide corresponding circumferential torque to the rotating shaft 13.

[0029] A front plate is further arranged on the front side of the bracket 11. An observation window 17 penetrating axially along the rotating shaft 13 is opened on the front plate. The observation window 17 is located on the front side of the sign 12 and is directly opposite to the circumferential area of the sign 12. During the rotation of the sign 12, only one of the open mark and the closed mark will be directly opposite to the observation window 17 for the user to view at the front end. Referring to Figure 4 as shown.

[0030] One end of the rotating shaft 13 far from the sign 12 is fixedly connected with a dial 15. The dial 15 rotates synchronously with the rotating shaft 13 as the center. The dial 15 is further provided with a dial rod 151. The dial rod 151 is located radially on the rotating shaft 13 and is set at a set distance from the rotating shaft 13.

[0031] A turntable 21 is sleeved on the operating shaft 2. The turntable 21 is fixedly connected with the operating shaft 2. It further includes a connecting rod 22. One end of the connecting rod 22 is hinged to the turntable 21, and the hinged position is located radially on the operating shaft 2 and is set at a set distance from the operating shaft 2. The dial rod 151 penetrates through the other end of the connecting rod 22. The dial rod 151 and the other end of the connecting rod 22 can be hinged or other movable connection methods.

[0032] When the grounding switch is in the opening and closing state, the earth knife 3 drives the operating shaft 2 to rotate, drives the rotating disk 21 to rotate to drive the connecting rod 22 to move, and further the connecting rod 22 moves to rotate the paddle 15, thereby rotating the rotating shaft 13 to rotate the indicating disk.

[0033] In this embodiment, the closing of the grounding switch is taken as the initial state. Figure 5 At this time, the paddle 15 is located at the first position and is held by the connecting rod 22 , the torsion spring 14 is in a tightened state, and the closing mark on the indicator plate 12 is opposite to the observation window 17 .

[0034] When the grounding switch is switched to the opening position, the grounding knife 3 drives the operating shaft 2 to rotate, and the turntable 21 rotates to drive the connecting rod 22 to shift. At this time, the paddle 15 is no longer supported by the connecting rod 22, so that the torque of the torsion spring 14 is released to drive the rotating shaft 13 and the paddle 15 to rotate until the paddle 15 rotates to the second position, and the opening mark on the indicator plate 12 is opposite to the observation window 17.

[0035] When the grounding switch is switched to the closed position again, similarly to the above, the action of the connecting rod 22 pushes the paddle 15 to rotate to the first position and tightens the torsion spring 14 .

[0036] In this embodiment, during the process of the grounding switch switching from the closed state to the open state, the theoretical rotation angle of the operating shaft 2 is set to ninety degrees. However, due to inevitable component processing errors and assembly errors, there will be losses in the movement of the operating shaft 2 in actual operation, causing its rotation angle to fluctuate within the range of 70-90°. Furthermore, when the angle formed between the open mark and the closed mark on the indicator sign 12 is designed to be ninety degrees, the open mark or the closed mark cannot be aligned with the observation window 17 in the corresponding state because the operating shaft 2 has not been rotated into place, and the opening and closing information indication is unclear, which can easily lead to misjudgment by the operator and cause danger.

[0037] Therefore, based on the grounding switch being closed in place, the angle of the second position relative to the first position is set to 70°. Figure 6 In one embodiment, the state of the torsion spring 14 can be set so that when the paddle 15 is rotated to the second position, the torsion spring 14 is in a completely relaxed state. Alternatively, in another embodiment, a fixed limiting rod 16 is provided on the bracket 11, and when the paddle 15 is rotated to the second position, it abuts against the limiting rod 16 and cannot rotate further.

[0038] A chute 221 is formed on the connecting rod 22, and the shifting lever 151 is inserted into the chute 221. The shifting lever 151 can slide within the range of the chute 221. Therefore, when the earthing switch is switched from closing to opening, when the operating shaft 2 rotates to the position of 70°, the shifting piece 15 has rotated to the second position, completing the identification switching at the indicating plate 12. During the remaining angular rotation of the operating shaft 2, the movement of the connecting rod 22 no longer drives the movement of the shifting piece 15, but is replaced by the relative movement between the shifting lever 151 and the chute 221, thereby achieving the effects of eliminating transmission loss and automatic compensation.

[0039] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Claims

1. A compensation opening / closing indicator sign structure, characterized in that, It includes an operating shaft (2) performing an axial rotation action and a bracket (11). One end of the operating shaft (2) is connected to an earthing switch, and the other end passes through the bracket (11). A rotating shaft (13) is provided at the axial end of the indicating plate (12), and the rotating shaft (13) passes through the bracket (11). A linkage structure (1) is provided on the bracket (11), and both ends of the linkage structure (1) are respectively connected to the rotating shaft (13) and the operating shaft (2); on the indicating plate (12), a closing mark and an opening mark for indicating the closing and opening of the earthing switch are respectively provided, and the closing mark and the opening mark are arranged along the circumferential direction of the indicating plate (12).

2. The structure of a compensation split and merge sign according to claim 1, wherein, It further includes a front plate, and an observation window (17) is penetrated and opened on the front plate. The observation window (17) faces the indicating plate (12). During the rotation of the indicating plate (12), one of the closing mark and the opening mark is located at the observation window (17).

3. The structure of a compensation split and merge sign according to claim 2, characterized in that, The linkage structure (1) includes a dial (15). The dial (15) is fixedly connected to one end of the rotating shaft (13). A torsion spring (14) is sleeved on the rotating shaft (13), and both ends of the torsion spring (14) are respectively connected to the bracket (11) and the rotating shaft (13); it further includes a turntable (21) sleeved on the operating shaft (2). A connecting rod (22) is hinged on the turntable (21). A dial rod (151) is provided on the dial (15), and the dial rod (151) passes through the connecting rod (22).

4. A compensation separation and combination sign structure according to claim 3, characterized in that The rotation range of the dial (15) includes a first position and a second position. In the first position, the closing mark faces the observation window (17). In the second position, the opening mark faces the observation window (17).

5. A compensation split and merge sign structure according to claim 4, characterized in that, The first position and the second position form a 70° angle.

6. A compensation split and merge sign structure according to any one of claims 3-5, characterized in that, A chute (221) is opened on the connecting rod (22), and the dial rod (151) passes through the chute (221) and can move within the chute (221).

7. The structure of a compensation split and merge sign according to claim 6, characterized in that, A limiting rod (16) is fixedly connected to the bracket (11), and the dial (15) abuts against the limiting rod (16) in the second position.

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