Mining flame-proof and intrinsic safety type switch interlocking mechanism

Abstract

The utility model provides a mining flame-proof and intrinsic safety type switch interlocking mechanism, and belongs to the field of switch interlocking mechanisms. The problems that an electric quick-opening mining switch is high in misoperation rate and complex in structure are solved. According to the technical scheme, the device comprises a box body, the box body comprises a door cover and a main control panel, a plurality of conversion handle assemblies, a plurality of stop button assemblies, a plurality of rack bases, a plurality of positive racks and a plurality of interlocking bases are arranged on the first end face of the main control panel, racks are arranged on the rack bases, and one ends of the racks are meshed with the positive racks; the main rack is fixedly connected with the handle, the stop button assembly comprises a stop button shaft and a stop button seat, a spring is arranged on the stop button shaft, the stop button shaft is in clearance fit with the stop button seat, and the stop button shaft is fixedly connected with a stop button shaft copper sleeve; one end of the handle rotating shaft sequentially penetrates through the interlocking disc, the handle shaft copper sleeve and the straight rack and then is connected with the handle seat; the utility model is applied to the mining switch interlocking mechanism.

Description

Technical Field

[0001] The utility model provides a mine-used flameproof and intrinsically safe switch interlocking mechanism, belonging to the technical field of switch interlocking mechanisms. Background Art

[0002] The mining lighting protection device is suitable for underground coal mines containing explosive gas. In order to ensure that the lighting comprehensive protection device can avoid power outages or failures caused by power supply equipment, at present, most of them use dual power supply lighting comprehensive protection devices. However, if they are misoperated when energized, it will increase the safety hazards of the staff. The mining switch in the prior art is an electric quick-open, which has a complex manufacturing process, a high misoperation rate, and high cost. The structure of the existing two-position interlocking mechanism is not simple enough, which is not convenient for maintenance and repair, and affects the reliability of the overall structure. Therefore, it is urgent to design an interlocking mechanism that can control the isolation switch of the dual power supply lighting comprehensive protection device. Utility Model Content

[0003] In order to solve the technical problem that the existing interlocking structure is not simple, the utility model proposes a mine flameproof and intrinsically safe switch interlocking mechanism, and aims to reduce the misoperation rate and ensure the safety of construction personnel by improving the hardware structure and / or circuit structure of the mine switch interlocking mechanism, while simplifying the structure of the switch interlocking mechanism.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a mining explosion-proof and intrinsically safe switch interlocking mechanism, including a box body, the box body includes a door cover and a main control panel, the first end surface of the main control panel is provided with a plurality of sets of conversion handle assemblies, each set of conversion handle assemblies is adapted to have a set of stop button assemblies, the structures of the plurality of sets of conversion handle assemblies are the same, and the structures of the plurality of sets of stop button assemblies are the same;

[0005] The conversion handle assembly includes a handle cover and a handle shaft, the handle cover is provided with a rotatable handle seat, the handle seat is fixedly provided with a blocking cover and a handle, and the handle seat is also fixedly connected with a spur rack; a plurality of interlocking seats and a plurality of rack bases are also provided on the first end surface of the main control panel, a rack is provided on the rack base, one end of the rack is meshed with the spur rack, and the other end of the rack passes through the interlocking seat;

[0006] The main control panel is also provided with a plurality of handle fixing seats, each of which is gap-matched with a handle shaft copper sleeve, and each of the handle fixing seats is provided with an interlocking disk, and the interlocking disk is provided with a groove and a hole, and the interlocking disk is located on the second end face side of the main control panel; the handle rotating shaft sequentially passes through the hole on the interlocking disk, the handle shaft copper sleeve and the spur rack and is fixedly connected to the handle seat; the limit device on the handle rotating shaft is meshed with the hole on the interlocking disk; each of the interlocking disks is movably connected to one end of a horizontal interlocking plate of an incoming line cavity, and the other end of each horizontal interlocking plate of the incoming line cavity is movably connected to one end of a short interlocking plate, and the other end of each short interlocking plate is movably connected to the same interlocking rod; the horizontal interlocking plate of the incoming line cavity is also provided with a through hole, and an interlocking mechanism positioning column is provided on the second end face of the main control panel, and the interlocking mechanism positioning column is gap-matched with the through hole;

[0007] The stop button assembly includes a stop button shaft and a stop button seat; the stop button shaft passes through the handle cover, the stop button seat passes through the main control panel, and the stop button shaft and the stop button seat are clearance-matched; a spring is provided on the stop button shaft, and the stop button seat is also fixedly connected with a bump head, and the bump head is matched with the groove;

[0008] The handle rotating shaft is also connected with a reversing switch.

[0009] Furthermore, the handle and the handle seat are integrally arranged.

[0010] Furthermore, a small hole is provided on the rack.

[0011] Furthermore, the diameter of the handle shaft copper sleeve is smaller than the diameter of the handle fixing seat.

[0012] Furthermore, an interlocking hole is provided on the door cover.

[0013] Furthermore, the rack is clearance-matched with the interlocking hole.

[0014] Furthermore, a bushing is gap-fitted in the interlocking rod seat, and a flameproof joint surface is provided at the fitting position between the bushing and the interlocking rod.

[0015] Furthermore, the stop button shaft is also clearance-fitted with a stop button shaft copper sleeve.

[0016] Furthermore, the interlocking seat, the rack base and the interlocking mechanism positioning column are assembled and welded.

[0017] Furthermore, the short interlocking plate and the incoming line cavity transverse interlocking plate are movably connected via a pin.

[0018] The beneficial effects of the present invention compared with the prior art are as follows:

[0019] 1. The interlocking mechanism of the utility model has a simple structure and is easy to operate;

[0020] 2. The handles for controlling the two power supplies of the utility model can be turned only after the emergency stop button is pressed, which reduces the misoperation rate of construction workers;

[0021] 3. The handle of the utility model will be locked whether it is rotated to the closed state or the open state, and cannot be powered on or off at will. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0024] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0025] Figure 3 It is an exploded view of the utility model;

[0026] Figure 4 It is a structural exploded diagram of the components on the first end surface of the control panel of the utility model;

[0027] Figure 5 This is a structural exploded view of the components on the second end surface of the control panel of the utility model;

[0028] Figure 6 It is the front view of the utility model;

[0029] Figure 7 It is a top view of the utility model;

[0030] Figure 8 It is a partial cross-sectional view of the utility model;

[0031] Fig. 9 for Figure 8 A magnified view of part A;

[0032] Fig.10 This is a schematic diagram of the structure of the components on the second end surface of the control panel of the utility model;

[0033] Fig.11 It is a structural schematic diagram of the components on the first end surface of the control panel when the first handle of the utility model is rotated to the closing state;

[0034] Fig.12 It is a structural schematic diagram of the components on the second end surface of the control panel when the first handle of the utility model is rotated to the closing state;

[0035] Fig.13It is a structural schematic diagram of the components on the first end surface of the control panel when the second handle of the utility model is rotated to the closing state;

[0036] Fig.14 It is a structural schematic diagram of the components on the second end surface of the control panel when the second handle of the utility model is rotated to the closing state;

[0037] In the figure: 1 is the main control panel, 2 is the conversion handle assembly, 3 is the handle cover, 4 is the handle seat, 5 is the blocking cover, 6 is the interlocking seat, 7 is the rack, 8 is the rack base, 9 is the spur rack, 10 is the spring, 11 is the stop button shaft, 12 is the handle fixing seat, 13 is the stop button seat, 14 is the handle shaft copper sleeve, 15 is the stop button shaft copper sleeve, 16 is the interlocking disk, 17 is the impact head, 18 is the incoming line cavity horizontal interlocking plate, 19 is the interlocking mechanism positioning column, 20 is the handle shaft, 21 is the interlocking rod, 22 is the interlocking rod seat, 23 is the short interlocking plate, 24 is the handle, 25 is the through hole, 30 is the door cover, 31 is the interlocking hole, 32 is the explosion-proof joint surface, 33 is the stop button assembly, 34 is the pin, 35 is the bushing, 36 is the partition, 37 is the groove, and 39 is the small hole. DETAILED DESCRIPTION

[0038] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0039] like Figures 1 to 14 As shown, the utility model provides an interlocking mechanism of a flameproof and intrinsically safe switch for mining, comprising a box body, the box body comprising a door cover 30 and a main control panel 1, two interlocking holes 31 are arranged on the end face of the door cover 30 close to the main control panel; two sets of conversion handle assemblies 2 are arranged on the first end face of the main control panel 1, and each set of conversion handle assemblies 2 is adapted to a set of stop button assemblies 33. In this embodiment, the two sets of conversion handle assemblies 2 have the same structure and size, and the two sets of stop button assemblies 33 have the same structure and size.

[0040] The conversion handle assembly 2 includes a handle cover 3, a rotatable handle seat 4 is provided on the shell of the handle cover 3, a plug cover 5 and a handle 24 are fixed on the handle seat 4, the handle 24 and the handle seat 4 are integrally provided, and a spur rack 9 is fixedly connected to the handle seat 4. An interlocking seat 6 is provided on the first end face of the main control panel 1 near the interlocking hole 31, a rack base 8 is fixedly provided on the first end face of the main control panel 1 corresponding to the handle cover 3, a movable rack 7 is provided on the rack base 8, one end of the rack 7 is meshed with the spur rack 9, the spur rack 9 is a gear, and the other end of the rack 7 can be inserted into the interlocking hole 31 after passing through the interlocking seat 6. A small hole 39 is provided on the rack 7. When the handle 24 is rotated to the closing state, the other end of the rack 7 is inserted into the interlocking hole 31, and the small hole 39 is now located between the interlocking seat 6 and the interlocking hole 31; when the handle 24 is rotated to the opening state, the other end of the rack 7 is pulled out of the interlocking hole 31, and at this time, the small hole 39 is located between the interlocking seat 6 and the handle cover 3.

[0041] A handle fixing seat 12 is provided through the main control panel 1, and a handle shaft copper sleeve 14 is provided in the gap inside the handle fixing seat 12. The lower end surface of the handle shaft copper sleeve 14 is on the same plane as the lower end surface of the handle fixing seat 12. An interlocking disk 16 is provided on the lower end surface of the handle fixing seat 12. The interlocking disk 16 is located on the second end surface side of the main control panel 1. A square hole is provided on the interlocking disk 16. The square hole, spur rack 9, and handle shaft copper sleeve 14 on the interlocking disk 16 are coaxially arranged. The handle shaft 20 is sequentially passed through the square hole, handle shaft copper sleeve 14, and spur rack 9 on the interlocking disk 16 and then fixedly connected with the handle seat 4 to ensure that when the handle seat 4 is rotated, the spur rack 9 rotates to drive the rack 7 to move on the rack base 8, and at the same time, the interlocking disk 16 can also rotate accordingly. The handle shaft 20 is also connected to a reversing switch.

[0042] The stop button assembly 33 includes a stop button shaft 11, which passes through the handle cover 3, one end face of the stop button shaft 11 protrudes from the outer surface of the handle cover 3 housing, one end of the stop button shaft 11 is sleeved with a spring 10, and the other end of the stop button shaft 11 is provided with a stop button shaft copper sleeve 15 in a clearance fit on the outside, the spring 10 matches the stop button shaft copper sleeve 15, and the stop button seat 13 is coaxially provided on the outside of the stop button shaft copper sleeve 15, and the other end face of the stop button shaft 11 is fixedly connected with a hit head 17, so that the stop button assembly 33 is a whole. The hit head 17 matches with the groove 37 provided on the interlocking disk 6, and when the stop button assembly 33 is in a normal state, the interlocking disk 16 cannot rotate, and when the stop button assembly 33 is pressed, the interlocking disk 6 cannot rotate.

[0043] Since the structures of the two sets of conversion handle assemblies 2 are the same, two interlocking disks 6 are provided in the present embodiment, and each of the two interlocking disks 6 is movably connected to one end of a line inlet cavity cross interlocking plate 18, and the other end of each line inlet cavity cross interlocking plate 18 is movably connected to one end of a short interlocking plate 23 through a pin 34, and the other end of each short interlocking plate 23 is movably connected to one end of the same interlocking rod 21, and the interlocking rod 21 is gap-fittedly provided with an interlocking rod seat 22, and the interlocking rod seat 22 is fixedly nested on the partition 36 on the box body, and the interlocking rod seat 22 is gap-fittedly provided with a bushing 35, and an explosion-proof joint surface 32 is provided at the fitting position of the bushing 35 and the interlocking rod 21.

[0044] A through hole 25 is also provided on each incoming line cavity transverse interlocking plate 18, one of which is elliptical and the other is triangular. An interlocking mechanism positioning column 19 is provided on the second end face of the main control panel 1. The interlocking mechanism positioning column 19 is clearance-matched with the through hole 25 to control the incoming line cavity transverse interlocking plate 18 to move within a specified range.

[0045] The interlocking seat 6, the rack base 8 and the interlocking mechanism positioning column 19 are assembled and welded together to ensure that the conversion handle assembly 2 of the utility model works flexibly.

[0046] The working principle of this utility model:

[0047] In the normal state, the stop button assembly 33 has the collision head 17 matched with the groove 37 on the corresponding interlocking disk 16, so that the interlocking disk 16 cannot rotate, that is, the handle 24 corresponding to the interlocking disk 16 cannot rotate. When one of the stop button assemblies 33 is pressed, the conversion handle assembly 2 matched with the stop button assembly 33 can work normally, that is, when the handle 24 on the stop button assembly 33 is rotated, its interlocking disk 16 and spur rack 9 rotate accordingly. At this time, the interlocking disk 16 rotates and drives the incoming line cross interlocking plate 18, the short interlocking plate 23, and the interlocking rod 21 to move. Since the other set of stop button assemblies 33 is in a normal state, the handle on the other set of conversion handle assemblies 2 will not be driven to rotate. Therefore, the two sets of conversion handle assemblies will not control the closing or opening of the switch at the same time; since the handle shaft 20 is connected to the reversing switch, when the handle 24 is rotated, reversing is achieved to control the corresponding power supply to work; at the same time, the spur rack 9 rotates to drive the rack 7 to transmit, so that the rack 7 is inserted into the interlocking hole 31 or pulled out of the interlocking hole 31. When the rack 7 is inserted into the interlocking hole 31 or pulled out of the interlocking hole 31, a lock is passed through the small hole 39 to lock it to prevent accidental opening or closing.

[0048] Regarding the specific structure of the utility model, it should be explained that the connection relationship between the various component modules adopted in the utility model is definite and feasible. Except for special instructions in the embodiments, the specific connection relationship can bring corresponding technical effects and solve the technical problems raised by the utility model without relying on the execution of corresponding software programs. The components, modules, models of specific components and the connection methods between each other appearing in the utility model, as well as the conventional use methods and expected technical effects brought about by the above-mentioned technical features, except for specific instructions, all belong to the disclosed contents in patents, journal articles, technical manuals, technical dictionaries, and textbooks that can be obtained by technical personnel in this field before the application date, or belong to the existing technologies such as conventional technologies and common knowledge in this field, and there is no need to elaborate, so that the technical solution provided in this case is clear, complete and feasible, and the corresponding physical products can be reproduced or obtained according to the technical means.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A mining flameproof and intrinsically safe switch interlocking mechanism, characterized in that: The invention comprises a box body, wherein the box body comprises a door cover (30) and a main control panel (1), wherein a first end surface of the main control panel (1) is provided with a plurality of sets of conversion handle assemblies (2), each set of conversion handle assemblies (2) is adapted to be equipped with a set of stop button assemblies (33), and the plurality of sets of conversion handle assemblies (2) have the same structure, and the plurality of sets of stop button assemblies (33) have the same structure; The conversion handle assembly (2) comprises a handle cover (3) and a handle shaft (20); a rotatable handle seat (4) is arranged on the handle cover (3); a blocking cover (5) and a handle (24) are fixedly arranged on the handle seat (4); and a spur rack (9) is fixedly connected to the handle seat (4); a plurality of interlocking seats (6) and a plurality of rack bases (8) are also arranged on the first end surface of the main control panel (1); a rack (7) is arranged on the rack base (8); one end of the rack (7) is meshed with the spur rack (9), and the other end of the rack (7) passes through the interlocking seat (6); The main control panel (1) is also provided with a plurality of handle fixing seats (12) penetrating therethrough, each handle fixing seat (12) being loosely fitted with a handle shaft copper sleeve (14), each handle fixing seat (12) being provided with an interlocking disk (16), the interlocking disk (16) being provided with a groove (37) and a hole, the interlocking disk (16) being located on the second end surface side of the main control panel (1); the handle rotating shaft (20) sequentially passes through the hole on the interlocking disk (16), the handle shaft copper sleeve (14) and the spur rack (9) and is then fixedly connected to the handle seat (4); the limit stop on the handle rotating shaft (20) The device meshes with a hole on the interlocking disk (16); each of the interlocking disks (16) is movably connected to one end of a line inlet cavity transverse interlocking plate (18), and the other end of each line inlet cavity transverse interlocking plate (18) is movably connected to one end of a short interlocking plate (23), and the other end of each short interlocking plate (23) is movably connected to the same interlocking rod (21); a through hole (25) is also provided on the line inlet cavity transverse interlocking plate (18), and an interlocking mechanism positioning column (19) is provided on the second end surface of the main control panel (1), and the interlocking mechanism positioning column (19) is clearance-matched with the through hole (25); The stop button assembly (33) comprises a stop button shaft (11) and a stop button seat (13); the stop button shaft (11) passes through the handle cover (3), the stop button seat (13) passes through the main control panel (1), and the stop button shaft (11) and the stop button seat (13) are clearance-matched; a spring (10) is provided on the stop button shaft (11), and the stop button seat (13) is also fixedly connected to a collision head (17), and the collision head (17) matches the groove (37); The handle rotating shaft (20) is also connected to a reversing switch.

2. The interlocking mechanism of a flameproof and intrinsically safe switch for mining according to claim 1 is characterized in that: The handle (24) and the handle base (4) are integrally arranged.

3. The interlocking mechanism of a flameproof and intrinsically safe switch for mining according to claim 1 is characterized in that: The rack (7) is provided with a small hole (39).

4. The interlocking mechanism of a flameproof and intrinsically safe switch for mining according to claim 1 is characterized in that: The diameter of the handle shaft copper sleeve (14) is smaller than the diameter of the handle fixing seat (12).

5. The interlocking mechanism of a flameproof and intrinsically safe switch for mining according to claim 1 is characterized in that: The door cover (30) is provided with an interlocking hole (31).

6. The interlocking mechanism of a flameproof and intrinsically safe switch for mining according to claim 5 is characterized in that: The rack (7) and the interlocking hole (31) are clearance-matched.

7. The interlocking mechanism of a flameproof and intrinsically safe switch for mining according to claim 1 is characterized in that: The interlocking rod (21) is provided with an interlocking rod seat (22) in a clearance fit, the interlocking rod seat (22) is provided with a bushing (35) in a clearance fit, and a flameproof joint surface (32) is provided at the fitting position of the bushing (35) and the interlocking rod (21).

8. The interlocking mechanism of a flameproof and intrinsically safe switch for mining according to claim 1 is characterized in that: The interlocking seat (6), the rack base (8) and the interlocking mechanism positioning column (19) are assembled and welded together.

9. The interlocking mechanism of a flameproof and intrinsically safe switch for mining according to claim 1, characterized in that: The short interlocking plate (23) is movably connected to the incoming line chamber transverse interlocking plate (18) via a pin (34).

10. The interlocking mechanism of a flameproof and intrinsically safe switch for mining according to claim 1, characterized in that: The stop button shaft (11) is also clearance-fitted with a stop button shaft copper sleeve (15).

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