Hand-operated power failure listing device for mining explosion-proof switch

Abstract

The utility model discloses a hand-operated power-off plate hanging device for a mining explosion-proof switch. The hand-operated power-off plate hanging device comprises a power-off plate, a power-off plate storage shell, a track, a track shell and a hand-operated mechanism, the power failure board is fixed on the track; the power failure board storage shell is fixed on the track shell; the track is in transmission connection with the track shell through a hand-cranking mechanism, so that the track slides out of or slides into the track shell, and the power failure board is rocked out of and taken back into the power failure board storage shell. The device is simple in structure and convenient to mount and dismount, the device is mounted on the surface of a mining explosion-proof switch shell for use, and the power failure board is shaken out or taken back by a worker through a hand-cranking mechanism, so that bad behaviors of randomly picking and hanging the power failure board and randomly cutting off and supplying power can be effectively reduced, and a good protection effect on the power failure board can also be achieved.

Description

Technical Field

[0001] The utility model relates to the field of coal mine electromechanical technology, and more specifically to a hand-cranked power-off hanging device for a mine explosion-proof switch. Background Art

[0002] At present, according to the requirements of the "Coal Mine Safety Regulations", the switch handle must be locked when the power is cut off, and a warning sign with the words "Someone is working, no power supply" must be hung. Only the person who performs this work has the right to remove the sign and supply power. However, in the actual operation process, due to the lack of the necessary power-off sign device and the influence of subjective factors of the operator, most mines do not hang power-off signs or randomly place power-off signs when inspecting explosion-proof switches, and it is common to see problems such as non-standard sign hanging, which leads to the bad behavior of arbitrarily stopping power supply, and such behavior is likely to pose a great safety hazard.

[0003] Therefore, how to provide a hand-cranked power-off sign-hanging device installed on the surface of the mining explosion-proof switch housing is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0004] In view of this, the utility model provides a hand-cranked power-off sign hanging device for a mine explosion-proof switch, which can be installed on the surface of the explosion-proof switch housing. The device warns the working status of the switch by shaking out or retracting the power-off sign, which can effectively reduce the safety hazards caused by improper hanging of the power-off sign.

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

[0006] A hand-cranked power-off sign-hanging device for a mining explosion-proof switch, comprising a power-off sign, a power-off sign storage shell, a track, a track shell and a hand-cranked mechanism;

[0007] The power outage sign is fixed on the track;

[0008] The power outage sign storage housing is fixed on the track housing;

[0009] The track and the track housing are connected by the hand-crank mechanism, so that the track can slide out or slide into the track housing, and the power-off sign can be shaken out and retracted into the power-off sign storage housing. The device has a simple structure and is easy to install and disassemble.

[0010] Furthermore, a rack is provided at the bottom of the track.

[0011] Furthermore, the hand-cranked mechanism includes a crank, a rocker and a gear;

[0012] The gear is installed in the track housing and meshes with the rack to form a simple transmission structure;

[0013] The rocker is fixedly connected to the gear;

[0014] The crank handle is engaged with the rocker arm to enable the track to slide out of or into the track housing.

[0015] Furthermore, the crank has a Z-shaped structure, which saves effort in operation.

[0016] Furthermore, the hand-holding position on the crank is covered with a rubber layer to prevent slipping and improve operational convenience.

[0017] Furthermore, a limit block is provided on one side of the track close to the inside of the power outage sign storage shell, and a limit column is provided on one end of the track shell close to the outlet of the power outage sign storage shell;

[0018] When the power-off sign is completely shaken out of the power-off sign storage shell, the limit block abuts against the limit column to prevent the track from falling off and causing unnecessary losses.

[0019] Furthermore, the power outage sign is made of PVC, acrylic or rubber, which are common and easily available, low in cost and environmentally friendly.

[0020] Furthermore, a layer of reflective film is provided on the power outage sign to improve the visibility of the warning message.

[0021] Furthermore, the power outage sign is also provided with a luminous layer, which can provide a good indication effect even in low light conditions.

[0022] Furthermore, the power outage sign storage shell is made of metal, stainless steel or alloy, which can better hide and protect the power outage sign.

[0023] It can be seen from the above technical scheme that compared with the prior art, the utility model discloses a hand-cranked power-off sign device for a mine explosion-proof switch, which has a simple structure and is easy to install and disassemble. The device is installed on the surface of the mine explosion-proof switch housing for use. When the switch is shut down for maintenance, the staff uses the hand-cranked mechanism to shake the power-off sign out of the power-off sign housing to display the warning content on the power-off sign. When the switch is used normally, the power-off sign is shaken into the power-off sign housing to hide the warning content on the power-off sign. Through the use of this device, it can effectively reduce the bad behaviors of arbitrarily removing and hanging power-off signs and arbitrarily stopping power supply, and can also play a good protective role for the power-off signs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0025] Figure 1 The present invention is a schematic structural diagram of a hand-cranked power outage sign device provided by the utility model.

[0026] Figure 2 The utility model is a schematic diagram of the structure of a hand-cranked power-off sign-hanging device installed on a mining explosion-proof switch.

[0027] Figure 3 This is a schematic diagram of the structure of the hand-cranked mechanism provided by the utility model. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The utility model discloses a mine explosion-proof switch hand-cranked power-off hanging device, see attached Figure 1 , including: a power outage sign 1, a power outage sign storage shell 2, a track 3, a track shell 4 and a hand-crank mechanism 5; wherein the power outage sign 1 is fixedly mounted on the track 3; the power outage sign storage shell 2 is fixedly mounted on the track shell 4; the track 3 and the track shell 4 are transmission connected through the hand-crank mechanism 5, and by rotating the hand-crank mechanism, the track 3 can be driven to slide out or slide into the track shell 4, and the power outage sign can be driven to be shaken out and retracted into the power outage sign storage shell 2.

[0030] For details, see the attached Figure 2 The device is installed on the front of the explosion-proof switch housing. When the switch is in normal use, the power-off sign 1 is located in the power-off sign storage housing 2; when the explosion-proof switch is powered off and locked, the staff member operates the hand-crank mechanism 5 to shake the power-off sign 1 out of the power-off sign housing 2 for warning; after the maintenance is completed, the staff member operates the hand-crank mechanism 5 again to shake the power-off sign 1 into the power-off sign storage housing 2. The utility model has a simple structure and is easy to install and disassemble. By installing the device on the explosion-proof switch, the problem of random placement and irregular hanging of the power-off sign can be avoided, and the power-off sign can also be protected.

[0031] A rack is provided at the bottom of the track 3. The rack may be a separate component fixed to the bottom of the track 3 by a connector, or may be directly excavated from the track material, which is not specifically limited here.

[0032] See attached Figure 3 The hand-crank mechanism 5 includes a crank 51, a rocker 52 and a gear (not shown in the figure); the gear is installed in the track housing 4 and meshes with the rack, which is not shown in the figure; the rocker 52 is fixedly connected to the gear; the crank 51 is engaged with the rocker 52 to make the track 3 slide out or slide into the track housing 4. The crank is a Z-shaped structure, which saves effort in operation.

[0033] The hand-holding position on the crank is also covered with a rubber layer to prevent slipping and improve ease of operation.

[0034] Specifically, the gear and the rack are meshed to form a simple transmission structure; one end of the rocker is fixedly connected to the gear, and the other end is provided with a specific card interface; the crank is an independent component, which is kept by special staff. When it is necessary to operate the hand-cranked mechanism to shake the power outage sign out or into the power outage sign storage shell, the crank is connected to the rocker, and when the crank is turned clockwise, the rack is driven to move toward the outside of the power outage sign storage shell to display the power outage sign. Conversely, when the crank is turned counterclockwise, the power outage sign is hidden.

[0035] In this embodiment, a limit block is provided on one side of the track 3 near the inside of the power-off sign storage housing 2, and a limit column is provided on one end of the track housing 4 near the exit of the power-off sign storage housing 2; when the power-off sign 1 is completely shaken out of the power-off sign storage housing 2, the limit block abuts against the limit column. By providing the limit block and the limit column, the distance that the track slides in and out can be effectively limited, the track can be prevented from falling off, and the stability of the entire hand-cranked power-off sign hanging device can be ensured.

[0036] In this embodiment, the power outage sign 1 can be made of durable materials such as PVC, acrylic or rubber according to actual conditions. Among them, the scientific name of PVC material is polyvinyl chloride, which is a kind of plastic with characteristics such as weather resistance, chemical resistance and wear resistance; acrylic material, also known as organic glass, has good durability and impact resistance; rubber material has good flexibility and low temperature resistance, and can adapt to a variety of complex environments. In the actual application process, various factors such as the use environment and economic cost can be considered to select the appropriate material to meet the durability and practicality requirements of the power outage sign, which is not specifically limited here.

[0037] In this embodiment, a layer of reflective film is provided on the power outage sign 1, which is a retro-reflective material. Covering the power outage sign, the power outage sign can be observed even in a dimly lit environment, effectively improving the visibility of the warning message.

[0038] In this embodiment, a luminous layer is also provided on the power outage sign 1, which is usually made of fluorescent powder or luminous pigment and has a longer luminous time and brightness. By covering the power outage sign with the luminous layer, the warning words can spontaneously glow in low light conditions, thereby playing a better warning role.

[0039] In this embodiment, the power outage sign storage housing 2 is made of a safer material such as metal, stainless steel or alloy, which can better hide and protect the power outage sign and increase the service life of the entire sign device.

[0040] The hand-cranked power-off sign-hanging device for a mine explosion-proof switch provided by the utility model has a simple structure and is easy to install and disassemble. In actual scenarios, the device is installed on the surface of the housing of the mine explosion-proof switch. When the switch is shut down for maintenance, the staff uses the hand-cranking mechanism to shake the power-off sign out of the housing of the power-off sign, and displays the warning content on the power-off sign to warn that power supply is prohibited; when the switch is in normal use, the power-off sign is shaken into the housing of the power-off sign, and the warning content on the power-off sign is hidden. This can effectively avoid the bad behavior of relevant personnel arbitrarily removing and hanging the power-off sign and arbitrarily stopping power supply, and also makes the storage of the power-off sign more standardized, thereby improving the use value of the power-off sign.

[0041] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0042] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hand-cranked power-off sign-out device for a mining explosion-proof switch, characterized in that: It comprises a power outage sign (1), a power outage sign storage shell (2), a track (3), a track shell (4) and a hand-cranked mechanism (5); The power outage sign (1) is fixed on the track (3); The power outage sign storage housing (2) is fixed on the track housing (4); The track (3) and the track housing (4) are connected in transmission via the hand-cranked mechanism (5), so that the track (3) can slide out or slide into the track housing (4), and the power-off sign can be shaken out and retracted into the power-off sign storage housing (2).

2. A mine explosion-proof switch hand-cranked power-off sign-out device according to claim 1, characterized in that: A rack is provided at the bottom of the track (3).

3. A mine explosion-proof switch hand-cranked power-off sign-out device according to claim 2, characterized in that: The hand-cranked mechanism (5) comprises a crank handle, a rocker and a gear; The gear is installed in the track housing (4) and meshes with the rack; The rocker is fixedly connected to the gear; The crank handle is engaged with the rocker arm, so that the track (3) slides out of or into the track housing (4).

4. A mine explosion-proof switch hand-operated power-off sign-out device according to claim 3, characterized in that: The crank is a Z-shaped structure.

5. A mine explosion-proof switch hand-cranked power-off sign-out device according to claim 4, characterized in that: The hand-holding position on the crank is also covered with a rubber layer.

6. A mine explosion-proof switch hand-cranked power-off sign-out device according to claim 1, characterized in that: The track (3) is also provided with a limit block on one side close to the inside of the power-off sign storage shell (2), and the track shell (4) is provided with a limit column on one end close to the outlet of the power-off sign storage shell (2); When the power-off sign (1) is completely shaken out of the power-off sign storage housing (2), the limiting block abuts against the limiting column.

7. A mine explosion-proof switch hand-operated power-off sign-out device according to claim 1, characterized in that: The power outage sign (1) is made of PVC, acrylic or rubber.

8. A mine explosion-proof switch hand-operated power-off sign-out device according to claim 1, characterized in that: The power outage sign (1) is provided with a layer of reflective film.

9. A mine explosion-proof switch hand-operated power-off sign-out device according to claim 1, characterized in that: The power outage sign (1) is also provided with a luminous layer.

10. A manual power-off sign-out device for a mining explosion-proof switch according to any one of claims 1 to 9, characterized in that: The power outage sign storage housing (2) is made of metal, stainless steel or alloy.

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