Extensible safety protection device

Abstract

The utility model relates to an extensible safety protection device which comprises a protection plate, a movable clamping plate, a fixed clamping plate, a limiting tongue plate and a warning baffle, and the upper side and the lower side of the protection plate are connected with the movable clamping plate and the fixed clamping plate to form a U-shaped clamp capable of shielding a handle of an electrical switch. The movable clamping plate can move up and down relative to the fixed clamping plate and clamp the front side of the electrical switch, the limiting tongue plate is fixed to the protection plate and located in the U-shaped clamp to limit movement of a handle of the electrical switch, and a sliding groove extending in the left-right direction is formed in the protection plate. The warning baffle is arranged in the sliding groove and can slide out of the sliding groove leftwards or rightwards so as to provide shielding and anti-error warning for the electrical switches which are arranged side by side, and a warning slogan is arranged on the front side face of the warning baffle. The anti-misoperation device has the advantages that the protection range of the anti-misoperation device can be expanded by pulling out the warning baffle, so that one anti-misoperation device does not need to be clamped on each electrical switch, the number of the anti-misoperation devices carried and installed by a maintainer is reduced, and inconvenience caused by carrying a large number of the anti-misoperation devices and mounting and dismounting is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the electrical switch safety protection field, concretely relates to an extensible safety protection device. BACKGROUND

[0002] In the power system, low-voltage air switches often appear in the row, and the number of switches in each group is usually 4, 6, 8, etc. During maintenance, it is often necessary to completely open the multiple low-voltage air switches in the row, and to fix the anti-misoperation device and hang the "do not close" sign. However, the current anti-misoperation device only supports one switch test, and when multiple groups of switches are maintained, the maintenance personnel need to carry a large number of anti-misoperation devices and signs, which is not only inconvenient to carry and easy to lose, but also needs to fix the anti-misoperation device and hang the sign one by one after opening, and needs to take them down one by one when the switch can be closed, which is inconvenient and time-consuming. SUMMARY

[0003] The utility model provides an extensible safety protection device (anti-misoperation device), which aims to overcome the above-mentioned deficiencies in the prior art.

[0004] The utility model discloses a kind of extensible safety protection devices (anti-misoperation devices), which are as follows: the technical scheme for solving the above technical problems includes protective plate, movable clamping plate, fixed clamping plate, limiting tongue plate and warning baffle, the upper and lower sides of the protective plate are connected with the movable clamping plate and the fixed clamping plate to form U-shaped clamp that can shield electrical switch handle, the movable clamping plate can be moved up and down relative to the fixed clamping plate and clamps the front side of electrical switch, the limiting tongue plate is fixed on the protective plate and located in the U-shaped clamp to limit the activity of electrical switch handle, the protective plate is provided with sliding groove extending in left-right direction, the warning baffle is arranged in the sliding groove and can slide out of the sliding groove to the left or right to shield and prevent misoperation warning for each electrical switch in side by side, warning slogan is provided on the front side of the warning baffle.

[0005] Based on the above technical scheme, the utility model can also be improved as follows.

[0006] Further, the left side or the right side of the sliding groove is provided with a notch for one end of the warning baffle to slide outwards, the other end of the warning baffle is fixed with a protruding strip, and a limiting block is arranged in the sliding groove close to the notch to cooperate with the protruding strip to prevent the warning baffle from completely coming out of the sliding groove.

[0007] Further, a hand-tightening positioning bolt is threadedly connected to one side of the front side of the protective plate close to the notch, and the hand-tightening positioning bolt is tightened to press and position the warning baffle.

[0008] Further, the area corresponding to the warning baffle in the sliding groove on the front side of the protective plate is arranged as an observation window.

[0009] Further, the observation window is provided with transparent glass.

[0010] Further, the front side of the protective plate is provided with warning slogans.

[0011] Further, the warning baffle is a hard plastic plate or a wooden plate.

[0012] Further, one end of the warning baffle is provided with a pulling handle for facilitating pulling out of the chute.

[0013] Further, the protective plate is provided with a vertical slot for accommodating a spring, the movable clamping plate is connected with the protective plate through a connecting rod bolt with a nut, the connecting rod bolt is sequentially threaded through the protective plate and the movable clamping plate through the vertical slot and is threadedly connected with the nut, the spring is sleeved on the connecting rod bolt, one end of the spring is abutted against the head of the end of the connecting rod bolt away from the nut, and the other end is abutted against the inner end wall of the vertical slot.

[0014] Further, the left and right sides of the protective plate are respectively provided with the vertical slots, the vertical slots are cylindrical slots, the spring and the connecting rod bolt are both entered into the vertical slots from one end, a through hole is formed in the center of the inner end wall of the vertical slot for the end of the connecting rod bolt to pass out, and the inner diameter of the through hole is smaller than the inner diameter of the vertical slot.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The anti-misoperation device is clamped in front of an electrical switch through the movable clamping plate and the fixed clamping plate, the electrical switches adjacent to and arranged side by side and spaced apart can be shielded and warned through the warning baffle pulled out of the chute of the protective plate, that is, the protection range of the anti-misoperation device is expanded through the pulled-out warning baffle, so that it is not necessary to clamp an anti-misoperation device on each electrical switch, the number of anti-misoperation devices carried and installed by maintenance personnel is reduced, and the inconvenience of carrying and installing and disassembling in large quantities is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model provides the shaft measurement graph of the expandable safety protection device;

[0018] Figure 2 The utility model provides the shaft measurement graph of the expandable safety protection device; Figure 1 The utility model provides the shaft measurement graph of the expandable safety protection device;

[0019] Figure 3 The utility model provides the shaft measurement graph of the expandable safety protection device; Figure 1 The utility model provides the shaft measurement graph of the expandable safety protection device; Figure 1 The pulling handle is not shown);

[0020] Figure 4For Figure 3 the structure shown in the figure, the front side of the guard plate is provided with an observation window, and the front view of the structure is shown in the figure.

[0021] Figure 5 For Figure 3 the structure shown in the figure, the front side of the guard plate is provided with an observation window, and the front view of the structure is shown in the figure.

[0022] Figure 6 For Figure 5 the structure shown in the figure, the front side of the guard plate is provided with an observation window, and the front view of the structure is shown in the figure.

[0023] Figure 7 For Figure 3 the structure shown in the figure, the front side of the guard plate is provided with an observation window, and the front view of the structure is shown in the figure.

[0024] In the drawings, the components represented by each reference numeral are listed as follows:

[0025] 1, guard plate; 2, movable clamping plate; 3, fixed clamping plate; 4, limiting tongue plate; 5, warning baffle; 6, sliding groove; 7, convex strip; 8, hand-tightening positioning bolt; 9, observation window; 10, pulling handle; 11, spring; 12, nut; 13, connecting rod bolt. DETAILED DESCRIPTION

[0026] The principles and characteristics of the present application will be described below in conjunction with the drawings, and the examples are only used to explain the present application and are not used to limit the scope of the present application.

[0027] In the description of the present application, if the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "top", "bottom", "inside", "outside" are used, the indicated orientation or position relationship is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the device or element to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0028] As Figures 1 to 7As shown, the utility model provides a kind of extensible safety protection device, it includes protective plate 1, movable clamp plate 2, fixed clamp plate 3, limiting tongue plate 4 and warning baffle 5, the upper and lower sides of the protective plate 1 are connected movable clamp plate 2 and fixed clamp plate 3 to form the U-shaped clamp that can shield electrical switch handle, movable clamp plate 2 can be moved up and down relative to fixed clamp plate 3 and clamp the front side of electrical switch, limiting tongue plate 4 is fixed on protective plate 1 and located in U-shaped clamp to limit electrical switch handle activity, protective plate 1 is equipped with the sliding groove 6 extending in left and right directions, warning baffle 5 is located in the sliding groove 6 and can slide out the sliding groove 6 to the left or right to provide shielding and prevent false warning for each electrical switch side by side, warning baffle 5 front side is equipped with warning slogan.

[0029] It needs to be explained that, the front side of protective plate is preferably designed into rectangle, the whole protective plate is cuboid plate, the rectangle long side of front side is 2 times or more than the width, and the long side extends along left and right directions, so that the relatively long sliding groove and warning baffle can be set, to ensure that there is greater space to extend protection by pulling out warning baffle to one side.

[0030] Specifically, in actual production, two specifications of extensible safety protection device (false-proof device) can be considered, one is small specification false-proof device, which can hold two groups of electrical switches and expand to protect four groups of electrical switches after pulling out warning baffle, and the other is large specification false-proof device, which can hold three groups of electrical switches and expand to protect six groups of electrical switches after pulling out warning baffle. The two can be combined at will, and the protection range is from two groups of switches to ten groups of switches, covering most brands of electrical switches.

[0031] In an embodiment of the utility model, the left side or the right side of the sliding groove 6 is provided with a slot for one end of the warning baffle 5 to slide outwards, as shown in the figure, Figure 5 As shown, the other end of the warning baffle 5 is fixed with a protruding strip 7, and the sliding groove 6 is provided with a limiting block near the slot to cooperate with the protruding strip 7 to prevent the warning baffle 5 from completely coming out of the sliding groove.

[0032] It can be understood that the limiting block is arranged at the slot of the sliding groove, when the protruding strip moves to the slot along with the warning baffle, the protruding strip is stopped by the limiting block, at this time, the warning baffle cannot be pulled outwards any more, and the protruding strip cooperates with the limiting block to prevent the warning baffle from completely coming out of the sliding groove.

[0033] In an embodiment of the utility model, the front side of the protective plate 1 is threadedly connected with a hand-tightening positioning bolt 8 on the side close to the slot, and the hand-tightening positioning bolt 8 is tightened to press and position the warning baffle 5.

[0034] It should be noted that the warning baffle can be appropriately extracted according to the number of side electrical switches to be protected, and it is not necessarily extracted to the extreme position. When stopped at any position, it can be compressed and positioned by tightening the hand-tightening positioning bolt. If the warning baffle is often not fully extracted during use, the warning slogans on the warning baffle are preferably sized and spaced in multiple groups that can be clearly viewed when close, and should not be too large or too small. If it is too large, the partial slogans will be blocked by the protective plate, which will produce the opposite semantic ambiguity. If it is too small, it is not easy to be noticed and cannot play a warning role.

[0035] In an embodiment of the present application, the front side of the protective plate 1 and the area corresponding to the warning baffle 5 in the chute 6 are provided with an observation window 9. Preferably, the observation window 9 is provided with transparent glass.

[0036] As shown in Figure 5 and 6 When the warning baffle is fully retracted into the chute, the warning slogans on the warning baffle can still be seen through the observation window, which is more convenient. The observation window can be completely transparent without transparent glass, or it can be more beautiful with transparent glass.

[0037] In an embodiment of the present application, as shown in Figure 7 The front side of the protective plate 1 is provided with warning slogans.

[0038] It should be noted that in addition to the warning slogans on the front side of the protective plate, warning slogans can also be provided on the warning baffle.

[0039] In an embodiment of the present application, the warning baffle 5 is a hard plastic plate or a wooden plate.

[0040] In an embodiment of the present application, one end of the warning baffle 5 is provided with a pulling handle 10 for easy pulling out of the chute 6.

[0041] It should be noted that the pulling handle can be cylindrical as shown in Figure 3 Figure 1 , or it can be ring-shaped, outwardly flanged or other shapes, which will not be listed here.

[0042] In an embodiment of the present application, the protective plate 1 is provided with a vertical slot for accommodating a spring 11, the movable clamping plate 2 is connected to the protective plate 1 through a connecting rod bolt 13 with a nut 12, the connecting rod bolt 13 passes through the protective plate 1 and the movable clamping plate 2 in sequence through the vertical slot and is threadedly connected to the nut 12, the spring 11 is sleeved on the connecting rod bolt 13, one end of the spring 11 abuts against the end head of the connecting rod bolt 13 away from the nut 12, and the other end abuts against the inner end wall of the vertical slot.

[0043] It should be noted that the entire anti-misoperation device is preferably made of insulating material with good weather resistance and non-conductivity, which not only ensures good durability, but also ensures no risk of electric leakage and improves safety. The curved arc shape of the movable clamping plate is provided at one end for clamping the electrical switch, thereby facilitating clamping of the electrical switch. The spring realizes the telescopic property of the entire anti-misoperation device and provides clamping force to the electrical switch, and gives the anti-misoperation device compatibility with different specifications of products.

[0044] In an embodiment of the present application, the left and right sides of the protective plate 1 are respectively provided with the vertical channels, which are cylindrical grooves, the spring 11 and the connecting rod bolt 13 are both inserted into the vertical channels from one end, a through hole is formed in the center of the inner end wall of the vertical channel for the one end of the connecting rod bolt 13 to pass through, and the inner diameter of the through hole is smaller than the inner diameter of the vertical channel.

[0045] It can be understood that the vertical channel is a blind groove rather than a through groove, and the through hole does not belong to the vertical channel. The inner diameter of the through hole is smaller than the vertical channel, so a circular annular surface is formed at the inner end wall of the vertical channel and abuts against one end of the spring.

[0046] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An extensible security protection device, characterized in that, The utility model provides an electric switch handle protection device, which comprises a protection plate (1), a movable clamping plate (2), a fixed clamping plate (3), a limiting tongue plate (4) and a warning baffle (5), the movable clamping plate (2) and the fixed clamping plate (3) are connected to the upper and lower sides of the protection plate (1) to form a U-shaped clamp capable of shielding the electric switch handle, the movable clamping plate (2) can move up and down relative to the fixed clamping plate (3) and clamp the front side of the electric switch, the limiting tongue plate (4) is fixed to the protection plate (1) and located in the U-shaped clamp to limit the movement of the electric switch handle, a sliding groove (6) extending in the left-right direction is arranged on the protection plate (1), the warning baffle (5) is arranged in the sliding groove (6) and can slide out of the sliding groove (6) to the left or the right to shield and prevent the misoperation warning of the electric switch arranged side by side on the left and right sides, and warning slogans are arranged on the front side of the warning baffle (5).

2. The scalable security device of claim 1, wherein, A slot is formed on the left side or the right side of the sliding groove (6) to allow one end of the warning baffle (5) to slide outwards, the other end of the warning baffle (5) is fixed with a protruding strip (7), and a limiting block is arranged in the sliding groove (6) near the slot to cooperate with the protruding strip (7) to prevent the warning baffle (5) from being completely pulled out of the sliding groove (6).

3. The scalable security device of claim 2, wherein, A hand-tightening positioning bolt (8) is threadedly connected to the side of the protection plate (1) near the slot, and the hand-tightening positioning bolt (8) is tightened to press and position the warning baffle (5).

4. The scalable security device of claim 1, wherein, An observation window (9) is arranged in the region corresponding to the warning baffle (5) in the sliding groove (6) on the front side of the protection plate (1).

5. The scalable security device of claim 4, wherein, Transparent glass is arranged in the observation window (9).

6. The scalable security device of claim 1, wherein, Warning slogans are arranged on the front side of the protection plate (1).

7. The scalable security device of claim 1, wherein, The warning baffle (5) is made of hard plastic or wood.

8. The expandable safety protection device according to any one of claims 1 to 7, characterized in that, A pulling handle (10) is arranged at one end of the warning baffle (5) to facilitate pulling the warning baffle (5) out of the sliding groove (6).

9. The scalable security device of claim 8, wherein, A vertical groove is arranged in the protection plate (1) to accommodate a spring (11), the movable clamping plate (2) and the protection plate (1) are connected by a connecting rod bolt (13) with a nut (12), the connecting rod bolt (13) passes through the protection plate (1) and the movable clamping plate (2) in sequence through the vertical groove and is threadedly connected with the nut (12), the spring (11) is sleeved on the connecting rod bolt (13), one end of the spring (11) abuts against the head of the end of the connecting rod bolt (13) away from the nut (12), and the other end of the spring (11) abuts against the inner end wall of the vertical groove.

10. The scalable security device of claim 9, wherein, The vertical grooves are arranged on the left and right sides of the protection plate (1) respectively, the vertical grooves are cylindrical grooves, the spring (11) and the connecting rod bolt (13) enter the vertical grooves from one end, a through hole is formed in the center of the inner end wall of the vertical groove to allow the one end of the connecting rod bolt (13) to pass out, and the inner diameter of the through hole is smaller than the inner diameter of the vertical groove.

Images