Mechanical lock for safety vacuum feeder switch for mines

Abstract

The invention discloses a mechanical lock for a mine safety vacuum feeder switch, belongs to the technical field of mechanical locks for mine safety vacuum feeder switches, and is used for preventing misoperation of mine safety vacuum feeder switches. The mechanical lock comprises a connecting part, an inserting part and a locking part, one end of the inserting part is connected to the connecting part, the locking part comprises two locking pieces and a padlock arranged in parallel, one end of each of the locking pieces is connected to the connecting part, through holes are arranged on the two locking pieces, the two through holes constitute a lock hole structure, and the padlock passes through the lock hole structure and is connected to the two locking pieces; the structure is simple, the number of parts is small, and the addition and modification operation can be directly performed in a mining machine; after adding a simple mechanical lock, the phenomenon that maintenance personnel or other idlers privately open the mine safety vacuum feeder switch can be effectively prevented, the on-site operation of the hooking personnel is standardized, and the safety and reliability of the mine safety vacuum feeder switch is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical locks of vacuum feeder switches, is used for preventing misoperation of vacuum feeder switches, and relates to a mechanical lock of a mine-used safety vacuum feeder switch. Background Art

[0002] The mine safety vacuum feeder switch is mainly used for power transmission and power outage of the underground power supply system of coal mines. It mainly includes a flameproof enclosure with a flameproof cavity, a box door, and electrical components such as circuit breakers, transformers, protectors, relays and control components arranged in the flameproof cavity. The vacuum feeder switch is a very important equipment. The vacuum feeder switch cannot be operated at will, otherwise it will affect the production process, and in serious cases it will cause accidents in the mine. The original vacuum feeder switch is not equipped with a corresponding mechanical lock, which means that non-professionals can also operate it, and safety cannot be guaranteed. It is difficult and costly to weld a mechanical lock directly on the door of the vacuum feeder switch, and it is not convenient to directly modify the vacuum feeder switch in the mine. Summary of the invention

[0003] The purpose of the present invention is to provide a mechanical lock for a safe vacuum feeder switch for use in mines, which solves the problem that the original vacuum feeder switch is not provided with a corresponding locking device, resulting in non-professionals being able to operate it and safety cannot be guaranteed, while it is difficult and costly to directly weld the locking device on the door of the vacuum feeder switch, and it is inconvenient to directly modify the vacuum feeder switch in the mine.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A mechanical lock for a mine-use safety vacuum feeder switch, the mechanical lock comprising a connecting part, an inserting part and a locking part, one end of the inserting part is connected to the connecting part, the locking part comprises two parallel locking pieces and a padlock, one end of each of the locking pieces is connected to the connecting part, through holes are provided on the two locking pieces, the two through holes constitute a lock hole structure, and the padlock passes through the lock hole structure and is connected to the two locking pieces.

[0006] Preferably, one end of the cutting portion is welded to the connecting portion.

[0007] Preferably, one end of each locking piece is welded to the connecting portion.

[0008] Preferably, the locking piece is provided with two through holes, the number of the locking hole structures is two, and the number of the padlocks is two.

[0009] Preferably, the insertion portion and the locking piece are perpendicular to each other.

[0010] Preferably, the locking piece comprises a blocking piece and a locking piece, the width of the locking piece is smaller than the width of the blocking piece, one end of the blocking piece is connected to the connecting portion and the other end is connected to the locking piece, and the through hole is provided on the locking piece.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0012] 1. The mechanical lock of the mine safety vacuum feeder switch of the present invention has a simple structure, few parts, and can be directly added and modified in the mining machine. After adding a simple mechanical lock, it can effectively prevent maintenance personnel or other strangers from opening the mine safety vacuum feeder switch privately, standardize the on-site operation of the hooking personnel, and ensure the safety and reliability of the mine safety vacuum feeder switch.

[0013] 2. The mine-use safety vacuum feeder switch mechanical lock of the present invention has two through holes on each locking plate to form two lock hole structures, and two padlocks are configured to lock through the corresponding lock hole structures. The keys of the two padlocks are respectively controlled by different people, thereby increasing the conditions for opening the mechanical lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative work, among which:

[0015] Figure 1 It is a schematic diagram of the structure of an existing mine-used safety vacuum feeder switch;

[0016] Figure 2 It is a schematic diagram of the mechanical lock structure of the present invention;

[0017] Markings in the figure: 1-rotating part, 2-handle, 3-shell cover, 4-threaded groove, 5-interlocking rod, 6-mounting seat, 7-limiting block, 8-limiting hole, 9-padlock, 10-through hole, 11-locking piece, 12-insertion part, 13-connecting part. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0020] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0021] Example

[0022] A preferred embodiment of the present invention provides a mechanical lock for a mine-use safety vacuum feeder switch, wherein the mechanical lock includes a connecting portion 13, an inserting portion 12 and a locking portion, wherein one end of the inserting portion 12 is connected to the connecting portion 13, and the locking portion includes two parallel locking pieces 11 and a padlock 9, wherein one end of each of the locking pieces 11 is connected to the connecting portion 13, and through holes 10 are provided on the two locking pieces 11, wherein the two through holes 10 constitute a lock hole structure, and the padlock 9 passes through the lock hole structure and is connected to the two locking pieces 11.

[0023] like Figure 1 As shown, the side of the existing mine safety vacuum feeder switch is provided with a switching device for switching the circuit breaker, a U-shaped mounting seat 6 and an interlocking rod 5, the switching device includes a rotating part 1 connected to the circuit breaker, a handle 2 connected to the rotating part 1, and a shell 3 arranged on the upper half of the rotating part 1, the rotating part 1 is provided with a thread groove 4, and the shell 3 is provided with a groove corresponding to the gear position; both ends of the U-shaped mounting seat 6 are provided with mounting holes, the interlocking rod 5 passes through the mounting holes in sequence and is connected to the U-shaped mounting seat 6, the interlocking rod 5 moves back and forth on the U-shaped mounting seat 6 to extend into the thread groove 4 and be threadedly connected to the rotating part 1 or extend out of the thread groove 4 and separate from the rotation, thereby realizing the locking and unlocking of the rotating part 1. A limit block 7 is provided on the door panel of the mine safety vacuum feeder switch, and a limit hole 8 is provided on the limit block 7, and the interlocking rod 5 moves back and forth on the U-shaped mounting seat 6 to extend into or extend out of the limit hole 8, thereby realizing the locking and unlocking of the door panel.

[0024] like Figure 2 As shown, when the present invention is used, the state of the interlocking rod 5 is to extend into the thread groove 4 and connect with the rotating part 1 to achieve locking, and extend out of the limiting hole 8 to achieve locking of the rotating part 1, and insert the cutting part 12 into the U-shaped mounting seat 6 from the top or bottom. At this time, the limiting block 7 is located between the two locking pieces 11, and the lock hole structure is located below or above the limiting block 7, and the locking piece 11 blocks the limiting hole 8, and then the padlock 9 passes through the lock hole structure and connects with the two locking pieces 11, closes the padlock 9, and pulls out the key to achieve locking. At this time, the limiting block 7 is limited between the padlock 9 and the connecting part 13, and the interlocking rod 5 cannot move on the U-shaped mounting seat 6. The structure is simple, the parts are few, and the addition and modification operation can be directly performed in the mining machine. After adding a simple mechanical lock, it can effectively prevent the maintenance personnel or other idle people from privately opening the mine safety vacuum feeder switch, standardize the on-site operation of the hooking personnel, and ensure the safety and reliability of the mine safety vacuum feeder switch.

[0025] Preferably, one end of the cutting part 12 is welded to the connecting part 13. During implementation, it is convenient for the cutting part 12 to be stably connected to the connecting part 13. It should be noted that the present application does not limit the specific connection relationship between the cutting part 12 and the connecting part 13, as long as the cutting part 12 and the connecting part 13 can be stably connected, for example, the cutting part 12 and the connecting part 13 can be an integrally formed structure, or fixedly connected by means of screw connection or the like.

[0026] Preferably, one end of the locking piece 11 is welded to the connecting portion 13. During implementation, it is convenient for the locking piece 11 to be stably connected to the connecting portion 13. It should be noted that the present application does not limit the specific connection relationship between the locking piece 11 and the connecting portion 13, as long as the locking piece 11 and the connecting portion 13 can be stably connected, for example, the cutting portion 12 and the connecting portion 13 can be an integrally formed structure, or fixedly connected by means of screw connection or the like.

[0027] Preferably, the locking piece 11 is provided with two through holes 10, the lock hole structures are two, and the padlocks 9 are two. In implementation, the two lock hole structures correspond to two padlocks 9, that is, the mode of two padlocks 9, so that the maintenance personnel and the monitoring manhole each have one key, and the vacuum feed switch can only be operated when the locks are unlocked at the same time, thereby protecting the personal safety of the maintenance personnel to the maximum extent.

[0028] Preferably, the cutting portion 12 is perpendicular to the locking piece 11. In practice, the cutting portion 12 is thinner, which saves material and facilitates the cutting portion 12 to be engaged with the two ends of the U-shaped mounting seat 6 without directly contacting and extruding the interlocking rod 5.

[0029] Preferably, the locking piece 11 includes a blocking piece and a locking piece, the width of the locking piece is smaller than the width of the blocking piece, one end of the blocking piece is connected to the connecting portion 13, and the other end is connected to the locking piece, and the through hole 10 is provided on the locking piece. During implementation, it is convenient to block the limiting hole 8 by the blocking piece and lock it by the locking piece, wherein the width of the locking piece is smaller than the width of the blocking piece, so as to facilitate the configuration of a suitable padlock 9, and avoid the need to select a larger padlock 9 due to the excessive width of the locking piece.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made by any technician familiar with the field within the spirit and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. Mine safety vacuum feeder switch mechanical lock, characterized by: The mechanical lock comprises a connecting part, a cutting part and a locking part, one end of the cutting part is connected to the connecting part, the locking part comprises two locking pieces and a padlock arranged in parallel, one end of each of the locking pieces is connected to the connecting part, a through hole is arranged on each of the two locking pieces, the two through holes constitute a lock hole structure, and the padlock passes through the lock hole structure and is connected to the two locking pieces; The cutting portion and the locking piece are perpendicular to each other; The cutting part is inserted into the U-shaped mounting seat, the limit block is located between the two locking pieces, the locking piece blocks the limit hole, the limit block is limited between the padlock and the connecting part, and the interlocking rod cannot move on the U-shaped mounting seat; The cutting part is engaged with both ends of the U-shaped mounting seat.

2. The mine safety vacuum feeder switch mechanical lock according to claim 1 is characterized by: One end of the cutting part is welded to the connecting part.

3. The mine safety vacuum feeder switch mechanical lock according to claim 1 is characterized in that: One end of the locking piece is welded to the connecting portion.

4. The mine safety vacuum feeder switch mechanical lock according to claim 1 is characterized in that: The locking pieces are each provided with two through holes, the number of the locking hole structures is two, and the number of the padlocks is two.

5. The mine safety vacuum feeder switch mechanical lock according to claim 1 is characterized by: The locking piece comprises a blocking piece and a locking piece, the width of the locking piece is smaller than the width of the blocking piece, one end of the blocking piece is connected to the connecting portion, and the other end is connected to the locking piece, and the through hole is arranged on the locking piece.

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