A fixing device suitable for power knife switch hanging plate

Abstract

The application discloses a fixing device suitable for a power knife switch hanging plate, and relates to the technical field of fixing devices, which comprises a hook and a fixing plate fixed at the bottom of the hook, a movable plate is arranged in the fixing plate, a pressing part for mounting a signboard and an operating hole for cooperating with an operating rod are arranged on the movable plate, a locking device for closing the opening of the hook is arranged on the hook, the locking device comprises a rotating part, the rotating part is rotationally connected with the neck part of the hook, and the lower end of the rotating part is rotationally connected with a longitudinal shaft rod; the longitudinal shaft rod is vertically penetrated into the fixing plate from the end far from the rotating part and is connected with the movable plate; and the longitudinal shaft rod is slidingly connected with the fixing plate in the vertical direction. The fixing device is more reliable, can effectively avoid accidental falling, and is safer and more reliable.

Description

Technical Field

[0001] This application relates to the field of fixed device technology, and in particular to a fixed device suitable for tagging electric disconnect switches. Background Technology

[0002] When a 10kV or 20kV high-voltage switch is de-energized, a "Do Not Close" sign must be hung on the switch's operating handle according to technical requirements. However, existing signs are usually attached with wires or simple hooks, which pose a risk of being blown off by the wind during operation, potentially causing safety accidents. Therefore, this invention proposes a fixing device suitable for hanging signs on power disconnect switches. Summary of the Invention

[0003] This application provides a fixing device suitable for hanging tags on power disconnect switches, which makes the fixing more secure, effectively prevents accidental falling, and is safer and more reliable.

[0004] In view of this, this application provides a fixing device suitable for hanging tags on power disconnect switches, including: a hook and a fixing plate fixed to the bottom of the hook;

[0005] A movable plate is provided inside the fixed plate;

[0006] The movable plate is provided with clamping parts for installing signs and operating holes for cooperating with operating rods;

[0007] The hook is provided with a locking device for closing the hook opening;

[0008] The locking device includes a rotating component;

[0009] The rotating component is rotatably connected to the neck of the hook, and a longitudinal shaft is rotatably connected to the lower end of the rotating component.

[0010] The end of the longitudinal shaft away from the rotating component is vertically inserted into the fixed plate and connected to the movable plate;

[0011] The longitudinal shaft is slidably connected to the fixed plate in the vertical direction.

[0012] Optionally, a contact switch is provided at the end of the rotating member away from the longitudinal shaft;

[0013] The fixed plate is provided with a telescopic mechanism for automatically locking the operating state of the movable plate when the hook opening is closed;

[0014] A normally closed control switch is provided at the operating hole;

[0015] The contact switch is electrically connected to the normally closed control switch;

[0016] The normally closed control switch is electrically connected to the telescopic mechanism.

[0017] Optionally, a light-emitting tube is provided on the inner wall of the fixing plate;

[0018] The contact switch is electrically connected to the light-emitting diode;

[0019] The LED is connected in parallel with the normally closed control switch.

[0020] Optionally, a power supply is provided inside the fixing plate;

[0021] A power switch is provided on the top of the fixing plate;

[0022] The power supply is electrically connected to the power switch;

[0023] The power switch is electrically connected to the contact switch.

[0024] Optionally, the telescopic mechanism is an electromagnetic telescopic mechanism.

[0025] Optionally, a transverse shaft is fixed to the top of the movable plate;

[0026] The fixing plate has symmetrical guide grooves on its left and right inner sidewalls for cooperating with the transverse shaft.

[0027] The transverse shaft is slidably connected to the fixed plate via the guide groove;

[0028] The longitudinal shaft is fixedly connected to the movable plate via the transverse shaft.

[0029] Optionally, the number of clamping elements is two or more.

[0030] Optionally, the clamping element includes a pressure plate;

[0031] The pressure plate is fixed to the movable plate by bolts.

[0032] Optionally, the pressure plate is provided with an anti-slip structure on the side near the movable plate.

[0033] Optionally, the hook, the fixed plate, and the movable plate are all made of non-metallic insulating materials.

[0034] As can be seen from the above technical solutions, the embodiments of this application have the following advantages: This fixing device for hanging tags on power disconnect switches utilizes an operating rod inserted into the operating hole during the tag-hanging process. This facilitates lifting the device to the required position. During lifting, under the influence of gravity, the hook and fixing plate move downwards together. At this time, the hook's locking device opens (i.e., the rotating part rotates, opening the hook opening), making it easy to hook the hook into the disconnect switch operating ring. After the device is hooked into the disconnect switch operating ring, the operating rod is removed, detaching it from the operating hole. Under the influence of gravity, the movable plate moves downwards, causing the rotating part to rotate and close the hook opening, thus locking the locking device and ensuring the tag is securely hung on the disconnect switch, effectively preventing accidental drops and making it safer and more reliable. When the device needs to be removed, simply reinsert the operating rod into the operating hole and lift the entire device. Under the influence of gravity, the hook's locking device will reopen, allowing the entire device to be quickly removed, making it more convenient to use. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the fixing device for hanging tags on power disconnect switches in the embodiments of this application;

[0036] Figure 2 This is a schematic diagram of the structure of the operating hole and normally closed control switch in the embodiments of this application;

[0037] Figure 3 This is a schematic diagram showing the positions of the longitudinal shaft and the fixing plate in an embodiment of this application;

[0038] Figure 4 This is a schematic diagram of the connection structure between the transverse shaft and the fixed plate in an embodiment of this application;

[0039] Figure 5 This is a schematic diagram of the structure inside the pressure plate in an embodiment of this application;

[0040] Figure 6 This is a schematic diagram of the electromagnetic telescopic mechanism in the embodiments of this application;

[0041] Figure 7 This is a circuit control diagram of a fixing device for attaching tags to power disconnect switches, as described in this application embodiment.

[0042] The attached figures are labeled as follows:

[0043] 1-Hook, 2-Fixed plate, 3-Modible plate, 4-Rotating component, 5-Longitudinal shaft, 6-Transverse shaft, 7-Contact switch, 8-Normally closed control switch, 9-Electromagnetic telescopic mechanism, 10-Power switch, 11-Light-emitting tube, 12-Pressure plate, 13-Bolt, 14-Operating hole, 15-Guide groove, 16-Anti-slip structure, 17-Telescopic part, 18-Coil, 19-Spring, 20-Power supply. Detailed Implementation

[0044] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0045] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0047] This application provides an embodiment of a fixing device suitable for tagging power disconnect switches. Please refer to the following for details. Figures 1 to 3 .

[0048] The fixing device for hanging tags on power disconnect switches in this embodiment includes: a hook 1 and a fixing plate 2 fixed to the bottom of the hook 1. A movable plate 3 is provided inside the fixing plate 2. The movable plate 3 is provided with a clamping member for installing the tag and an operating hole 14 for cooperating with the operating rod. The hook 1 is provided with a locking device for closing the opening of the hook 1. The locking device includes a rotating member 4, which is rotatably connected to the neck of the hook 1. The lower end of the rotating member 4 is rotatably connected to a longitudinal shaft 5. The end of the longitudinal shaft 5 away from the rotating member 4 is vertically inserted into the fixing plate 2 and connected to the movable plate 3. The longitudinal shaft 5 is slidably connected to the fixing plate 2 in the vertical direction.

[0049] It should be noted that this fixing device for hanging tags on power disconnect switches utilizes an operating rod inserted into the operating hole 14 during the tag-hanging process. This allows the device to be easily lifted to the desired position. During lifting, under the influence of gravity, hook 1 and fixing plate 2 will move downwards together. At this time, the locking device of hook 1 opens (i.e., the rotating part 4 rotates, opening the hook 1), making it easy to hook hook 1 into the disconnect switch operating ring. After the device is hooked into the disconnect switch operating ring, the operating rod is removed, disengaging it from the operating hole 14. At this time, under the influence of gravity, the movable plate 3 moves downwards, causing the rotating part 4 to rotate and close the hook 1 opening, thus locking the locking device and ensuring that the tag is securely hung on the disconnect switch, effectively preventing accidental falls and making it safer and more reliable. When it is necessary to remove the device, simply reinsert the operating rod into the operating hole 14 and lift the entire device. Under the influence of gravity, the locking device of hook 1 will reopen, allowing the entire device to be quickly removed, making it more convenient to use.

[0050] The above is Embodiment 1 of a fixing device for hanging tags on power disconnect switches provided in this application. The following is Embodiment 2 of a fixing device for hanging tags on power disconnect switches provided in this application. Please refer to the following for details. Figures 1 to 7 .

[0051] The fixing device for hanging tags on power disconnect switches in this embodiment includes: a hook 1 and a fixing plate 2 fixed to the bottom of the hook 1. A movable plate 3 is provided inside the fixing plate 2. The movable plate 3 is provided with a clamping member for installing the tag and an operating hole 14 for cooperating with an operating rod. The hook 1 is provided with a locking device for closing the opening of the hook 1. The locking device includes a rotating member 4, which is rotatably connected to the neck of the hook 1, and a longitudinal shaft 5 is rotatably connected to the lower end of the rotating member 4. The end of the longitudinal shaft 5 away from the rotating member 4 is vertically inserted into the fixing plate 2 and connected to the movable plate 3. The longitudinal shaft 5 is slidably connected to the fixing plate 2 in the vertical direction. Specifically, the rotating member 4 is rotatably connected to the neck of the hook 1 via a rotating shaft.

[0052] A contact switch 7 is provided at the end of the rotating part 4 away from the longitudinal shaft 5. A telescopic mechanism is provided inside the fixed plate 2 to automatically lock the running state of the movable plate 3 when the opening of the hook 1 is closed. A normally closed control switch 8 is provided at the operation hole 14. The contact switch 7 is electrically connected to the normally closed control switch 8, and the normally closed control switch 8 is electrically connected to the telescopic mechanism.

[0053] It should be noted that, to further ensure the device's secure fixation and prevent accidental drops, a contact switch 7 can be installed at the contact position between the rotating component 4 and the hook 1. A telescopic mechanism for limiting the movement of the movable plate 3 is also installed within the fixed plate 2. When the locking device is engaged (the rotating component 4 closes the opening of the hook 1), the circuit is activated, causing the telescopic part 17 of the telescopic mechanism to extend and limit the movement of the movable plate 3. When unlocking is required, an operating rod can be directly inserted into the operating hole 14 to open the normally closed control switch 8. At this time, the telescopic mechanism automatically resets after power failure, allowing the movable plate 3 to move automatically.

[0054] A light-emitting tube 11 is provided on the inner wall of the fixed plate 2. The contact switch 7 is electrically connected to the light-emitting tube 11, and the light-emitting tube 11 is connected in parallel with the normally closed control switch 8.

[0055] It should be noted that when the locking device is locked, the light tube 11 will automatically light up. This serves as a warning and allows staff to visually confirm whether the device is properly engaged, making it more convenient to use.

[0056] Specifically, a power supply 20 is installed inside the fixing plate 2, and a power switch 10 is installed on the top of the fixing plate 2. The power supply 20 is electrically connected to the power switch 10, and the power switch 10 is electrically connected to the contact switch 7. In use, the power switch 10 can be turned on first, and then the device can be hung up.

[0057] Understandably, by setting up the power switch 10, the locking state of the movable plate 3 can also be released directly through the power switch 10 during use; the conductive circuit of this device can be built into the hook 1 and the fixed plate 2 to hide the wiring, making it more aesthetically pleasing and stable.

[0058] The telescopic mechanism can be an electromagnetic telescopic mechanism 9, which includes a coil 18, a telescopic part 17 made of permanent magnet material, and a spring 19. When the coil 18 is energized, it generates an electromagnetic force, and the telescopic part 17 will extend under the action of the electromagnetic force. When the coil 18 is de-energized, the electromagnetic force disappears, and the telescopic part 17 will return to its original position under the action of the spring 19.

[0059] A transverse shaft 6 is fixed to the top of the movable plate 3. Guide grooves 15 are symmetrically formed on the left and right inner sidewalls of the fixed plate 2 to cooperate with the transverse shaft 6. The transverse shaft 6 is slidably connected to the fixed plate 2 through the guide grooves 15. The longitudinal shaft 5 is fixedly connected to the movable plate 3 through the transverse shaft 6. When the transverse shaft 6 is at the top of the guide groove 15, the rotating component 4 is fully open; when the transverse shaft 6 is at the bottom of the guide groove 15, the rotating component 4 completely closes the opening of the hook 1.

[0060] It should be noted that by setting the transverse axis 6, the longitudinal axis 5 can be effectively prevented from swinging arbitrarily, making the movement of the movable plate 3 more stable.

[0061] The number of clamping parts can be two or more.

[0062] Specifically, the clamping component includes a pressure plate 12, which is fixed to the movable plate 3 by bolts 13. When in use, the bolts 13 can be loosened first, then the sign can be placed between the pressure plate 12 and the movable plate 3, and then the bolts 13 can be tightened again to fix the sign.

[0063] An anti-slip structure 16 is provided on the side of the pressure plate 12 near the movable plate 3, which can effectively prevent the sign from falling off. Specifically, the anti-slip structure 16 can be an anti-slip texture or an anti-slip material fixed to the pressure plate 12, such as rubber.

[0064] Hook 1, fixed plate 2, and movable plate 3 can all be made of non-metallic insulating materials to ensure insulation and non-conductivity during operation, making it safer.

[0065] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A fixing device suitable for hanging tags on power disconnect switches, characterized in that, include: Hook and fixing plate fixed to the bottom of the hook; A movable plate is provided inside the fixed plate; The movable plate is provided with clamping parts for installing signs and operating holes for cooperating with operating rods; The hook is provided with a locking device for closing the hook opening; The locking device includes a rotating component; The rotating component is rotatably connected to the neck of the hook, and a longitudinal shaft is rotatably connected to the lower end of the rotating component. The end of the longitudinal shaft away from the rotating component is vertically inserted into the fixed plate and connected to the movable plate; The longitudinal shaft is slidably connected to the fixed plate in the vertical direction; A contact switch is provided at the end of the rotating component away from the longitudinal shaft; The fixed plate is provided with a telescopic mechanism for automatically locking the operating state of the movable plate when the hook opening is closed; A normally closed control switch is provided at the operating hole; The contact switch is electrically connected to the normally closed control switch; The normally closed control switch is electrically connected to the telescopic mechanism.

2. The fixing device for tagging electric disconnect switches according to claim 1, characterized in that, A light-emitting tube is provided on the inner wall of the fixing plate; The contact switch is electrically connected to the light-emitting diode; The LED is connected in parallel with the normally closed control switch.

3. The fixing device for tagging electric disconnect switches according to claim 1, characterized in that, A power supply is installed inside the fixing plate; A power switch is provided on the top of the fixing plate; The power supply is electrically connected to the power switch; The power switch is electrically connected to the contact switch.

4. The fixing device for tagging electric disconnect switches according to claim 1, characterized in that, The telescopic mechanism is an electromagnetic telescopic mechanism.

5. The fixing device for tagging electric disconnect switches according to claim 1, characterized in that, A transverse shaft is fixed to the top of the movable plate; The fixing plate has symmetrical guide grooves on its left and right inner sidewalls for cooperating with the transverse shaft. The transverse shaft is slidably connected to the fixed plate via the guide groove; The longitudinal shaft is fixedly connected to the movable plate via the transverse shaft.

6. The fixing device for tagging electric disconnect switches according to claim 1, characterized in that, The number of clamping components is two or more.

7. The fixing device for tagging electric disconnect switches according to claim 1, characterized in that, The clamping component includes a pressure plate; The pressure plate is fixed to the movable plate by bolts.

8. The fixing device for tagging electric disconnect switches according to claim 7, characterized in that, The pressure plate has an anti-slip structure on the side near the movable plate.

9. The fixing device for tagging electric disconnect switches according to claim 1, characterized in that, The hook, the fixed plate, and the movable plate are all made of non-metallic insulating materials.

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