Box cover structure of explosion-proof power supply device for coal mine

Abstract

The utility model relates to the technical field of coal mine explosion-proof power supply devices, and discloses a coal mine explosion-proof power supply device box cover structure, which comprises a power supply box, two opening and closing mechanisms are arranged on the top of the power supply box, the opening and closing mechanisms are symmetrically arranged, and locking mechanisms are arranged on the sides, deviating from each other, of the two opening and closing mechanisms. According to the utility model, the defects in the prior art are overcome, the top of the power box is closed or opened by adopting the design that the opening and closing mechanism is matched with the locking mechanism, and when the top of the power box is closed by the first box cover and the second box cover of the opening and closing mechanism, the position of the first box cover can be locked by matching with the locking mechanism; and in addition, the second box cover is pressed by the first box cover at the same time, the first box cover and the second box cover can be effectively prevented from being opened, shaking of the first box cover and the second box cover is also avoided, and the stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof power supply devices for coal mines, and more specifically to a box cover structure of explosion-proof power supply devices for coal mines. Background Art

[0002] Coal mine explosion-proof power supply device is a power supply device specially designed for use underground in coal mines. It is designed for use in places where there is a risk of methane or coal dust explosion. These power supply devices have explosion-proof functions to ensure safe operation in flammable and explosive environments. Coal mine explosion-proof power supply devices mainly include two types: mining flameproof lithium-ion battery power supplies and explosion-proof special power supply devices.

[0003] Deficiencies of the prior art: Under the prior art, most explosion-proof power supply devices in coal mines are of a box-type structure, with a box cover that can be opened and closed on the top of the box. However, the existing box cover and the box body are usually connected by a single hinge. After the box cover is closed, it can still shake slightly, which is easy to loosen and has poor stability. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a box cover structure of a coal mine explosion-proof power supply device to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a box cover structure of a coal mine explosion-proof power supply device, comprising a power supply box, an opening and closing mechanism is installed on the top of the power supply box, two opening and closing mechanisms are symmetrically arranged, and locking mechanisms are arranged on the sides of the two opening and closing mechanisms facing away from each other.

[0006] The opening and closing mechanism includes a first box cover and a second box cover, a group of first connecting rods are installed on both sides of the first box cover, a group of second connecting rods are installed on both sides of the second box cover, a clamping strip is welded on the top of the first box cover, extension plates are welded on both ends of the clamping strip, and an extrusion strip is welded on the top of the second box cover.

[0007] The locking mechanisms are provided with two corresponding opening and closing mechanisms, and the locking mechanisms include a receiving plate and a rotating member.

[0008] Preferably, one end of the first connecting rod is hinged to the first box cover, the other end of the first connecting rod is hinged to the power box, one end of the second connecting rod is hinged to the second box cover, and the other end of the second connecting rod is hinged to the power box.

[0009] Preferably, each of the first box covers is provided with a positioning column, the positioning column is welded to an extension plate, a connecting hole is opened at the center of the positioning column, and the connecting hole passes through the extension plate, and an internal thread is provided in the connecting hole.

[0010] Preferably, a limiting ring is welded on the surface of the power box, and two limiting rings are provided corresponding to the positioning columns.

[0011] Preferably, a threaded column is welded on one side of the receiving plate, and a traction block is welded on the other side of the receiving plate. The surface of the threaded column is provided with an external thread, and the external thread matches the internal thread.

[0012] Preferably, a traction groove is provided at one end of the rotating member, and the traction groove matches the traction block.

[0013] Preferably, the first box cover and the second box cover are each provided with a group of air vents, and air vents are installed at the air vents.

[0014] Preferably, the ventilation assembly comprises a water retaining plate, the water retaining plate is welded to the top of the ventilation opening, a support plate is welded to the inner side of the water retaining plate, and a shielding cover is welded to the top of the support plate.

[0015] Technical effects and advantages of the utility model:

[0016] The utility model solves the shortcomings of the prior art and adopts an opening and closing mechanism in conjunction with a locking mechanism to close or open the top of the power box. When the first box cover and the second box cover of the opening and closing mechanism close the top of the power box, the locking mechanism can lock the position of the first box cover. In addition, the first box cover presses the second box cover at the same time, which can effectively prevent the first box cover and the second box cover from being opened, and also avoid the first box cover and the second box cover from shaking, thereby improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a partial structural schematic diagram of the utility model.

[0019] Figure 3 This is a schematic diagram of the first box cover structure of the utility model.

[0020] Figure 4 This is a schematic diagram of the second box cover structure of the utility model.

[0021] Figure 5 For this utility model Figure 2 A magnified view of the structure in Figure 2.

[0022] Figure 6 For this utility model Figure 3 Enlarged view of the structure at point B in the figure.

[0023] Figure 7 It is a schematic diagram of the receiving plate structure of the utility model.

[0024] Figure 8 This is a schematic diagram of the structure of the rotating part of the utility model.

[0025] The accompanying drawings are marked as follows: 1. power box; 11. limit ring; 2. opening and closing mechanism; 21. first box cover; 211. clamping strip; 212. first connecting rod; 213. extension plate; 214. positioning column; 215. connecting hole; 22. second box cover; 221. extrusion strip; 222. second connecting rod; 23. ventilation component; 231. water retaining panel; 232. support plate; 233. shielding cover; 3. locking mechanism; 31. receiving plate; 311. threaded column; 312. traction block; 32. rotating part; 321. traction groove. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The box cover structure of a coal mine explosion-proof power supply device involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0027] The utility model provides a box cover structure of a coal mine explosion-proof power supply device, comprising a power supply box 1. An opening and closing mechanism 2 is installed on the top of the power supply box 1. Two opening and closing mechanisms 2 are symmetrically arranged. A locking mechanism 3 is arranged on one side of the two opening and closing mechanisms 2 facing away from each other.

[0028] The opening and closing mechanism 2 includes a first box cover 21 and a second box cover 22. A group of first connecting rods 212 are installed on both sides of the first box cover 21, and a group of second connecting rods 222 are installed on both sides of the second box cover 22. A clamping strip 211 is welded on the top of the first box cover 21, and extension plates 213 are welded on both ends of the clamping strip 211. An extrusion strip 221 is welded on the top of the second box cover 22.

[0029] Two locking mechanisms 3 are provided corresponding to the opening and closing mechanisms 2 , and the locking mechanisms 3 include a receiving plate 31 and a rotating member 32 .

[0030] Furthermore, one end of the first connecting rod 212 is hinged to the first box cover 21, the other end of the first connecting rod 212 is hinged to the power box 1, one end of the second connecting rod 222 is hinged to the second box cover 22, and the other end of the second connecting rod 222 is hinged to the power box 1. The staff can push the first box cover 21 and the second box cover 22 by hand. Under the action of the first connecting rod 212 and the second connecting rod 222, the first box cover 21 and the second box cover 22 can be pushed from the left and right sides of the power box 1 to the top of the power box 1. At this time, the bottom of the clamping strip 211 and the top of the extrusion strip 221 conflict with each other, and the positioning column 214 is aligned with the limit ring 11.

[0031] Furthermore, a positioning post 214 is provided on each first box cover 21. The positioning post 214 is welded to an extension plate 213. A communication hole 215 is provided at the center of the positioning post 214, and the communication hole 215 penetrates through the extension plate 213. Internal threads are provided in the communication hole 215. A limiting ring 11 is welded to the surface of the power supply box 1. Two limiting rings 11 are provided corresponding to the positioning post 214. A threaded post 311 is welded to one side of the bearing plate 31, and a traction block 312 is welded to the other side of the bearing plate 31. External threads are provided on the surface of the threaded post 311, and the external threads are matched with the internal threads. When one end of the threaded post 311 passes through the communication hole 215 and enters the limiting ring 11, the threaded post 311 and the limiting ring 11 cooperate with each other to lock the position of the first box cover 21, and the first box cover 21 cannot be rotated and opened any more.

[0032] Furthermore, a traction groove 321 is provided at one end of the rotating member 32. The traction groove 321 is matched with the traction block 312. The operator can sleave the traction groove 321 on the rotating member 32 onto the surface of the traction block 312. By screwing the rotating member 32, the operator can make the threaded post 311 rotate around its own axis.

[0033] Furthermore, a set of ventilation openings are provided on both the first box cover 21 and the second box cover 22. A ventilation component 23 is installed at the ventilation openings. The ventilation component 23 includes a water-blocking apron 231. The water-blocking apron 231 is welded to the top of the ventilation opening. A support plate 232 is welded to the inner side of the water-blocking apron 231. A shielding cover 233 is welded to the top of the support plate 232. There are gaps between the bottom of the shielding cover 233 and the top of the first box cover 21 and between the bottom of the shielding cover 233 and the top of the second box cover 22. The setting of the gaps enables the inside of the power supply box 1 to communicate with the outside through the ventilation openings, ensuring breathability. And the shielding cover 233 can shield the ventilation openings. Together with the water-blocking apron 231, it can reduce the entry of dust, water, etc. from the outside through the ventilation openings into the inside of the power supply box 1.

[0034] Working principle of the utility model: During actual operation, when it is necessary to close the opening and closing mechanism 2, the staff manually push the first box cover 21 and the second box cover 22. Under the action of the first connecting rod 212 and the second connecting rod 222, the first box cover 21 and the second box cover 22 are pushed from both sides of the power supply box 1 to the top of the power supply box 1. At this time, the bottom of the pressing strip 211 abuts against the top of the extrusion strip 221, and the positioning column 214 aligns with the limiting ring 11. The staff insert the threaded column 311 on the bearing plate 31 into the communication hole 215, and put the traction groove 321 on the rotating member 32 over the surface of the traction block 312. The staff rotate the rotating member 32 to make the threaded column 311 rotate around its own axis. Under the mutual cooperation of the external thread and the internal thread, one end of the threaded column 311 passes through the communication hole 215 and enters the limiting ring 11. The threaded column 311 and the limiting ring 11 cooperate with each other to lock the position of the first box cover 21, and the first box cover 21 cannot be rotated and opened anymore. Since the second box cover 22 is pressed by the first box cover 21, the position of the second box cover 22 is also locked.

[0035] Finally, the following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0036] Second: In the attached drawings of the disclosed embodiments of the utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0037] Finally: The above are only the preferred embodiments of the utility model, and are not used to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A box cover structure for an explosion-proof power supply device in a coal mine, comprising a power supply box (1), characterized in that: An opening and closing mechanism (2) is installed on the top of the power box (1), two opening and closing mechanisms (2) are symmetrically arranged, and a locking mechanism (3) is arranged on the side of the two opening and closing mechanisms (2) facing away from each other; The opening and closing mechanism (2) comprises a first box cover (21) and a second box cover (22); a group of first connecting rods (212) are installed on both sides of the first box cover (21); a group of second connecting rods (222) are installed on both sides of the second box cover (22); a pressing strip (211) is welded on the top of the first box cover (21); extension plates (213) are welded on both ends of the pressing strip (211); and an extrusion strip (221) is welded on the top of the second box cover (22); The locking mechanisms (3) are provided with two corresponding opening and closing mechanisms (2), and the locking mechanisms (3) include a receiving plate (31) and a rotating member (32).

2. A box cover structure for a coal mine explosion-proof power supply device according to claim 1, characterized in that: One end of the first connecting rod (212) is hinged to the first box cover (21), and the other end of the first connecting rod (212) is hinged to the power box (1); one end of the second connecting rod (222) is hinged to the second box cover (22), and the other end of the second connecting rod (222) is hinged to the power box (1).

3. The box cover structure of a coal mine explosion-proof power supply device according to claim 1, characterized in that: Each of the first box covers (21) is provided with a positioning column (214), the positioning column (214) is welded to an extension plate (213), a connecting hole (215) is opened at the center of the positioning column (214), and the connecting hole (215) passes through the extension plate (213), and an internal thread is provided in the connecting hole (215).

4. The box cover structure of a coal mine explosion-proof power supply device according to claim 1, characterized in that: A limiting ring (11) is welded on the surface of the power box (1), and two limiting rings (11) are provided corresponding to the positioning columns (214).

5. The box cover structure of a coal mine explosion-proof power supply device according to claim 1, characterized in that: A threaded column (311) is welded on one side of the receiving plate (31), and a traction block (312) is welded on the other side of the receiving plate (31). The surface of the threaded column (311) is provided with an external thread, and the external thread matches the internal thread.

6. The box cover structure of a coal mine explosion-proof power supply device according to claim 1, characterized in that: A traction groove (321) is provided at one end of the rotating member (32), and the traction groove (321) matches the traction block (312).

7. The box cover structure of a coal mine explosion-proof power supply device according to claim 1, characterized in that: The first box cover (21) and the second box cover (22) are both provided with a group of air vents, and air vent components (23) are installed at the air vents.

8. The box cover structure of a coal mine explosion-proof power supply device according to claim 7, characterized in that: The vent assembly (23) comprises a water retaining plate (231), the water retaining plate (231) is welded to the top of the vent, a support plate (232) is welded inside the water retaining plate (231), and a shielding cover (233) is welded on the top of the support plate (232).

Images