Electrical isolation switch protection device

Abstract

The utility model discloses an electrical isolation switch protection device which comprises a protection box, a baffle plate and a fixing mechanism. The top of the protection box is open, and the electrical switch body is installed in the protection box. The baffle is horizontally inserted into the top opening of the protection box and can be horizontally drawn so as to open or close the opening of the protection box; according to the device, the electrical switch main body is protected through the protection box and the baffle, and the situation that when the electrical switch main body is in a disconnected state, the baffle is moved by external force, the electrical switch main body is touched and closed by the baffle, and a circuit is suddenly connected, so that a maintainer is injured is prevented.

Description

Technical Field

[0001] The utility model belongs to the field of polysilicon production, and particularly relates to an electrical isolation switch protection device. Background Art

[0002] The isolation switch is a switch device mainly used for functions of "isolating power supply, switching operation, and connecting and cutting off small current circuits", and is widely used in polysilicon production lines. The existing isolation switch has no protection box. During the maintenance process, the disconnected isolation switch is prone to the baffle falling due to reasons such as accidental touch and vibration, which presses down the electrical isolation switch to close. The sudden connection of the circuit will cause harm to the maintenance personnel.

[0003] For example, a Chinese patent for an electrical isolation switch (CN217933577U) discloses an electrical isolation switch, which includes an electrical isolation switch main body. A protective cover is sleeved outside the electrical isolation switch main body. A plurality of sealing strips are slidably matched with the inner wall of the lower end of the protective cover, and a baffle is rotatably connected to the inner wall of the upper end of the protective cover. By pulling up the pull ring, the pull ring can drive the L-shaped rod, so that the L-shaped rod can contact the inclined surface of the triangular block, and then the U-shaped limiting rod connected to the triangular block moves, and the front end of the U-shaped limiting rod slides out of the insertion slot, so that the baffle can be opened. However, after the electrical isolation switch main body is cut off, since one end of the baffle is rotatably connected to the protective cover through a rotating shaft, if the baffle falls due to reasons such as strong wind, vibration or accidental touch, and presses down the electrical isolation switch to close, a safety accident will occur. Summary of the Invention

[0004] Utility Model Objective: The technical problem to be solved by the present utility model is to provide an electrical isolation switch protection device to avoid the above accidents in view of the deficiencies of the prior art.

[0005] In order to achieve the above objective, the technical solution adopted by the present utility model is as follows:

[0006] An electrical isolation switch protection device includes a protection box, a baffle and a fixing mechanism; the top of the protection box is open, and an electrical switch main body is installed inside; the baffle is horizontally inserted at the top opening of the protection box and can be horizontally pulled to open or close the opening of the protection box; the fixing mechanism is arranged inside the baffle for fixing the baffle.

[0007] Specifically, the fixing mechanism includes a sliding shaft, a clamping block, a sliding plate, a clamping shaft and a first spring; the sliding shaft is horizontally arranged inside the baffle and can move back and forth inside the baffle; the clamping blocks are in a pair and are respectively arranged on both sides of the sliding shaft; a clip is arranged on the inner side of each clamping block, and clamping grooves are correspondingly arranged on both sides of the sliding shaft along the length direction; a sliding plate is respectively connected to the outer side of each clamping block; a pair of clamping shafts are respectively connected to both ends of the outer side of each sliding plate, and a first spring is connected to the middle of the outer side of each sliding plate; when the sliding shaft moves back and forth, the clamping blocks move horizontally through the sliding plates and the clamping shafts in sequence, and the clamping shafts are clamped into or out of the grooves on the side wall of the protection box.

[0008] Specifically, both the clamping block and the first spring are located on the central axis of the sliding plate, and the two clamping shafts are symmetrically connected to both ends of the sliding plate with the first spring as the symmetry axis.

[0009] Further, an axial track for the back-and-forth movement of the sliding shaft, a guide groove for the movement of the clamping block, a movable cavity for the movement of the sliding plate, a guide groove for the movement of the clamping shaft, and a spring cavity for installing the first spring are respectively arranged inside the baffle.

[0010] Further, a group of grooves are arranged on the inner side of the side wall of the protection box; when the clamping shaft moves out of the baffle, it can be correspondingly clamped into the grooves on the side wall of the corresponding protection box, so as to fix the baffle on the top of the protection box.

[0011] Further, one end of the sliding shaft protrudes from one side of the baffle, and the other end of the sliding shaft is connected to a second spring. The second spring is installed inside the baffle and is used to reset the sliding shaft after it moves.

[0012] Furthermore, a strip-shaped limiting block is installed on the rear side edge of the baffle. The limiting block is fixedly installed on the upper part of the baffle and extends upward into the opening at the top of the protection box. When the baffle is pulled out forward, the limiting block can be used for limiting to prevent the baffle from being pulled out from the inside of the protection box.

[0013] Furthermore, a cleaning mechanism is also arranged on the top of the protection box. The cleaning mechanism includes a cleaning plate and movable pins located at both ends of the cleaning plate; the cleaning plate is movably installed in the opening at the top of the protection box, and the bottom surface of the cleaning plate is attached to the top surface of the baffle; the movable pins are movably installed on both sides of the top of the protection box and can slide along the top of the protection box, so as to drive the cleaning plate to move and sweep the sediment on the surface of the baffle.

[0014] Furthermore, the cleaning mechanism also includes a pair of movable pin guide rails. The movable pin guide rails are installed on the opposite side edges of the top of the protection box; the movable pins are movably installed in the movable pin guide rails and can freely slide along the movable pin guide rails.

[0015] Furthermore, the cleaning plate and the movable pin at one end are connected by a connecting plate that arches upward, and a movable space for passing the limit block on the baffle is reserved below the connecting plate. Beneficial effects

[0016] (1) The protection box and the baffle of the present protection device are used to protect the electrical switch body. By pulling the sliding shaft, the sliding plate and the clamping shaft are moved through the first spring. The clamping shaft is pulled out from the groove of the protective cover, and the baffle is pulled out. After releasing the sliding shaft, under the action of the second spring, the sliding shaft returns to its original position, and the clamping shaft is re-locked in the groove of the protective cover to fix the baffle, preventing the baffle from being moved by external force when the electrical switch body is in the off state, resulting in the electrical switch body being touched and closed by the baffle, and suddenly connecting the circuit to cause injury to maintenance personnel.

[0017] (2) The present device can clean the sundries accumulated on the upper side of the baffle through the cleaning mechanism, preventing the sundries from being accumulated between the clamping block and the protective cover when the baffle moves, resulting in the clamping shaft being unable to extend into the groove of the protective cover and the fixing mechanism failing to fix the baffle. Description of the drawings

[0018] The following further specific description of the present utility model is made in conjunction with the drawings and specific embodiments, and the above and / or other advantages of the present utility model will become clearer.

[0019] Figure 1 is the overall structural schematic diagram of the present device.

[0020] Figure 2 is the cross-sectional view of the present device.

[0021] Figure 3 is the A-A cross-sectional view of the present device.

[0022] Figure 4 is the structural schematic diagram of the fixing mechanism of the present device.

[0023] Figure 5 is the structural schematic diagram of the cleaning mechanism of the present device.

[0024] 1. Protection box; 2. Fixing mechanism; 201. Sliding shaft; 202. Sliding plate; 203. Clamping shaft; 204. First spring; 205. Second spring; 206. Clamping block; 3. Baffle; 4. Cleaning mechanism; 401. Cleaning plate; 402. Connecting plate; 403. Movable pin; 404. Movable pin guide rail; 5. Limit block; 6. Electrical switch body. Specific embodiments

[0025] The present utility model can be better understood according to the following embodiments.

[0026] The structures, proportions, sizes, etc. shown in the attached drawings of the specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the efficacy that the present utility model can generate and the purpose that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, terms such as "upper", "lower", "front", "rear", "middle", etc. cited in this specification are only for the convenience of clear narration and are not used to limit the scope for the implementation of the present utility model. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope for the implementation of the present utility model.

[0027] As Figure 1 shown, the electrical disconnector protection device of the present utility model includes a protection box 1, a baffle 3, and a fixing mechanism 2; the top of the protection box 1 is open, and an electrical switch body 6 is installed inside; the baffle 3 is horizontally inserted at the top opening of the protection box 1 and can be horizontally pulled to open or close the opening of the protection box 1; the fixing mechanism 2 is arranged inside the baffle 3 and is used to fix the baffle 3.

[0028] Among them, the fixing mechanism 2 includes a sliding shaft 201, a clamping block 206, a sliding plate 202, a clamping shaft 203, and a first spring 204; the sliding shaft 201 is horizontally arranged inside the baffle 3 and can move back and forth inside the baffle 3; the clamping blocks 206 are a pair and are respectively arranged on both sides of the sliding shaft 201; clamping teeth are arranged on the inner sides of the clamping blocks 206, and trapezoidal clamping grooves are correspondingly arranged on both sides of the sliding shaft 201 along the length direction; sliding plates 202 are respectively connected to the outer sides of each clamping block 206; a pair of clamping shafts 203 are respectively connected to both ends of the outer side of each sliding plate 202, and a first spring 204 is connected to the middle of the outer side of each sliding plate 202; when the sliding shaft 201 moves back and forth, the clamping blocks 206 drive the sliding plates 202 and the clamping shafts 203 to move horizontally, and the clamping shafts 203 are clamped into or separated from the grooves on the side wall of the protection box 1.

[0029] Specifically, both the clamping blocks 206 and the first spring 204 are located on the central axis of the sliding plate 202, and the two clamping shafts 203 are symmetrically connected to both ends of the sliding plate 202 with the first spring 204 as the axis of symmetry.

[0030] Furthermore, shaft tracks for the front and back movement of the sliding shaft 201, guide grooves for the movement of the clamping blocks 206, activity cavities for the movement of the sliding plates 202, guide grooves for the movement of the clamping shafts 203, and spring cavities for installing the first spring 204 are respectively arranged inside the baffle 3.

[0031] Further, a set of grooves are provided on the inner side of the side wall of the protection box 1; when the clamping shaft 203 moves out of the baffle 3, it can be correspondingly clamped into the grooves on the side wall of the corresponding protection box 1, so as to fix the baffle 3 on the top of the protection box 1.

[0032] Further, one end of the sliding shaft 201 is exposed from one side of the baffle 3, and the other end of the sliding shaft 201 is connected to the second spring 205. The second spring 205 is installed inside the baffle 3 and is used to reset the sliding shaft 201 after it moves.

[0033] Furthermore, a strip-shaped limiting block 5 is installed on the rear side edge of the baffle 3. The limiting block 5 is fixedly installed on the upper part of the baffle 3 and extends upward into the opening at the top of the protection box 1. When the baffle 3 is pulled out forward, the limiting block 5 can be used for limiting to prevent the baffle 3 from being pulled out from the inside of the protection box 1.

[0034] Furthermore, a cleaning mechanism 4 is further provided on the top of the protection box 1. The cleaning mechanism 4 includes a cleaning plate 401 and movable pins 403 located at both ends of the cleaning plate 401. The cleaning plate 401 is movably installed in the opening at the top of the protection box 1, and the bottom surface of the cleaning plate 401 is attached to the top surface of the baffle 3. The movable pins 403 are movably installed on both sides of the top of the protection box 1 and can slide along the top of the protection box 1, so as to drive the cleaning plate 401 to move and sweep the deposits on the surface of the baffle 3.

[0035] Furthermore, the cleaning mechanism 4 further includes a pair of movable pin guide rails 404. The movable pin guide rails 404 are installed on the opposite side edges of the top of the protection box 1. The movable pins 403 are movably installed into the movable pin guide rails 404 and can freely slide along the movable pin guide rails 404.

[0036] Furthermore, the cleaning plate 401 is connected to the movable pin 403 at one end through an upward-arching connecting plate 402. A movable space for passing the limiting block 5 on the baffle 3 is reserved below the connecting plate 402.

[0037] During use, pull the sliding shaft 201 to align the groove on the sliding shaft 201 with the clamping block 206. Under the action of the first spring 204, the sliding plate 202 pushes the clamping block 206 to engage with the sliding shaft 201. The clamping shaft 203 moves with the sliding plate 202 and is withdrawn from the inner groove of the protective cover 1. At this time, the baffle 3 can be pulled out until the limit block 5 fits against the edge of the protective box 1 to prevent the baffle 3 from being pulled out, and the electrical switch body 6 is presented in front of the maintenance personnel. After the maintenance is completed, release the sliding shaft 201. Under the action of the second spring 205, the sliding shaft 201 resets. When the sliding shaft 201 resets, it pushes the clamping block 206 to reset, causing the sliding plate 202 to push the clamping shaft 203 to move. The clamping shaft 203 is inserted into the inner groove of the protective box 1 to fix the baffle 3, preventing the baffle 3 from being moved by an external force when the electrical switch body 6 is in the off state, resulting in the sudden closing of the electrical switch body 6 and the energization of the circuit, causing harm to the maintenance personnel.

[0038] Meanwhile, push the movable pin 403. Through the connection between the connecting plate 402 and the cleaning plate 401, the movable pin 403 moves along the movable pin guide rail 404, causing the cleaning plate 401 to slide on the upper side of the baffle 3 and push the debris on the upper side of the baffle 3 to one side and discharge it through the side hole of the protective box 1, preventing excessive debris from accumulating on the upper side of the baffle 3. When the clamping block 5 fits against the protective box 1, due to the debris, the fit is not tight, resulting in the problem that the clamping shaft 203 cannot be inserted into the upper groove of the protective box 1 and the baffle 3 cannot be fixed.

[0039] The present invention provides an idea and method for an electrical isolation switch protection device. There are many methods and ways to specifically implement this technical solution. The above description is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. Each component not clearly defined in this embodiment can be implemented using existing technologies.

Claims

1. An electrical isolating switch protection device, characterized in that: The invention comprises a protection box (1), a baffle (3) and a fixing mechanism (2); the protection box (1) is open at the top and an electrical switch body (6) is installed inside; the baffle (3) is horizontally plugged into the top opening of the protection box (1) and can be pulled horizontally to open or close the opening of the protection box (1); the fixing mechanism (2) is arranged inside the baffle (3) and is used to fix the baffle (3).

2. The electrical isolating switch protection device according to claim 1, characterized in that: The fixing mechanism (2) comprises a sliding shaft (201), a clamping block (206), a sliding plate (202), a clamping shaft (203) and a first spring (204); the sliding shaft (201) is horizontally arranged inside the baffle (3) and is capable of moving forward and backward inside the baffle (3); the clamping blocks (206) are a pair, and are arranged on both sides of the sliding shaft (201) respectively; a clamp is arranged on the inner side of the clamping block (206); and the sliding shaft (201) is arranged on both sides along the length direction. A corresponding card slot is provided; the outer side of each card block (206) is respectively connected to a sliding plate (202); the outer ends of each sliding plate (202) are respectively connected to a pair of card shafts (203), and the middle part of the outer side of each sliding plate (202) is connected to a first spring (204); when the sliding shaft (201) moves forward and backward, the card block (206) moves the sliding plate (202) and the card shaft (203) horizontally in turn, and causes the card shaft (203) to be stuck in or out of the groove of the side wall of the protection box (1).

3. The electrical isolating switch protection device according to claim 2, characterized in that: The clamping block (206) and the first spring (204) are both located on the central axis of the sliding plate (202), and the two clamping axes (203) are symmetrically connected to the two ends of the sliding plate (202) with the first spring (204) as a symmetry axis.

4. The electrical isolating switch protection device according to claim 2, characterized in that: The baffle plate (3) is provided with an axis track for the sliding axis (201) to move forward and backward, a guide groove for the block (206) to move, a movable cavity for the sliding plate (202) to move, a guide groove for the block (203) to move, and a spring cavity for installing a first spring (204).

5. The electrical isolating switch protection device according to claim 2, characterized in that: A group of grooves are provided on the inner side of the side wall of the protection box (1); when the clamping shaft (203) moves out of the baffle plate (3), it can be clamped into the corresponding grooves of the side wall of the protection box (1), thereby fixing the baffle plate (3) on the top of the protection box (1).

6. The electrical isolating switch protection device according to claim 2, characterized in that: One end of the sliding shaft (201) is exposed from one side of the baffle (3), and the other end of the sliding shaft (201) is connected to a second spring (205). The second spring (205) is installed inside the baffle (3) and is used to achieve reset of the sliding shaft (201) after movement.

7. The electrical isolating switch protection device according to claim 1, characterized in that: A strip-shaped limit block (5) is installed on the rear end side edge of the baffle (3); the limit block (5) is fixedly installed on the upper part of the baffle (3) and extends upward into the top opening of the protection box (1); when the baffle (3) is pulled forward, the limit block (5) can be used to limit the position, thereby preventing the baffle (3) from being pulled out from the inside of the protection box (1).

8. The electrical isolating switch protection device according to claim 1, characterized in that: The top of the protection box (1) is also provided with a cleaning mechanism (4), and the cleaning mechanism (4) comprises a cleaning plate (401) and movable pins (403) located at both ends of the cleaning plate (401); the cleaning plate (401) is movably mounted in the top opening of the protection box (1), and the bottom surface of the cleaning plate (401) is in contact with the top surface of the baffle (3); the movable pins (403) are movably mounted on both sides of the top of the protection box (1), and can slide along the top of the protection box (1), thereby driving the cleaning plate (401) to movably sweep away the sediment on the surface of the baffle (3).

9. The electrical isolating switch protection device according to claim 8, characterized in that: The cleaning mechanism (4) further comprises a pair of movable pin guide rails (404), wherein the movable pin guide rails (404) are mounted on two opposite sides of the top of the protection box (1); the movable pin (403) is movably mounted in the movable pin guide rails (404) and is capable of sliding freely along the movable pin guide rails (404).

10. The electrical isolating switch protection device according to claim 8, characterized in that: The cleaning plate (401) is connected to a movable pin (403) at one end via an upwardly arched connecting plate (402), and a movable space is reserved below the connecting plate (402) for a limit block (5) on the baffle plate (3) to pass through.

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