CN211038744U

CN211038744U - Coal mine safety door

Info

Publication number: CN211038744U
Application number: CN201921699832.1U
Authority: CN
Inventors: 赵仪强; 潘志鹏; 张舟
Original assignee: Inner Mongolia University of Science and Technology
Current assignee: Inner Mongolia University of Science and Technology
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-07-17
Anticipated expiration: 2029-10-12

Abstract

The utility model discloses a coal mine safety door, including base and fixed connection in the support frame of base, be equipped with the door plant in the support frame, be equipped with the confined chamber that holds in the base, it is equipped with the motor to hold the chamber right side, the motor shaft of motor passes through the shaft coupling and is connected with the connecting axle, the both sides key connection has first helical gear about the connecting axle, vertical direction establishes friend and first helical gear matched with second helical gear, the second helical gear of both sides respectively with first drive shaft, second drive shaft fixed connection, the upper end of first drive shaft, second drive shaft is worn out and is held the chamber upper wall and stretch into the spout, rotates with the throat groove at spout top and is connected, L type sliding plate has in the spout, the vertical board of sliding plate passes through bolt fixed connection in door plant lateral wall bottom, this device changes original rope control door plant drive mode, through the ascending decline of threaded connection mode control door plant, door plant separation when avoiding taking place proruption situation.

Description

Coal mine safety door

Technical Field

The utility model relates to an emergency exit technical field, concretely relates to coal mine emergency exit.

Background

The mine is a general name of a shaft way, an underground chamber, equipment, a ground building and a structure forming an underground coal mine production system, inclined shafts, vertical shafts, adit and the like in underground mining of the mine are also called as mines sometimes, the determination of the field range size, the mine production capacity and the service life of each mine is one of the key problems which must be solved in the mine self-body design, the mine is a very important channel for transportation personnel and materials, and in the transportation process, a well mouth safety door needs to be arranged at a well mouth in order to ensure the safety; the existing coal mine safety door is generally in a vertical sliding mode, and a driving motor is connected with a door plate only by a rope; when an emergency happens, the door plate is separated from the rope, and the door plate does not have anti-falling measures to lose weight and fall down, so that great hidden danger is brought to the safety of people.

Disclosure of Invention

An object of the utility model is to provide a coal mine emergency exit, this device change original rope control door plant drive mode, through the decline that rises of threaded connected mode control door plant, the door plant separation drops when avoiding taking place emergency.

The utility model adopts the technical scheme as follows: a coal mine safety door comprises a base and a support frame fixedly connected to the base, wherein a door plate is arranged in the support frame, a closed accommodating cavity is arranged in the base, a motor is arranged on the right side of the accommodating cavity, and the motor is fixedly connected to the lower wall of the accommodating cavity through a bolt; a motor shaft of the motor is connected with a connecting shaft through a coupler, the left side and the right side of the connecting shaft are in key connection with a first bevel gear, and a second bevel gear matched with the first bevel gear is arranged in the vertical direction; the second bevel gears on the left side and the right side are fixedly connected with the first driving shaft and the second driving shaft respectively; the left side and the right side of the accommodating cavity are respectively provided with a baffle with an inverted U-shaped section, and the first driving shaft and the second driving shaft penetrate through the center of the upper wall of the baffle; and a support plate is fixedly connected to the first drive shaft and the second drive shaft between the upper wall of the accommodating cavity and the baffle, and the lower wall of the support plate is in contact with the upper wall of the baffle.

The left side and the right side of the support frame are provided with sliding grooves, the upper ends of a first driving shaft and a second driving shaft penetrate through the upper wall of the accommodating cavity and extend into the sliding grooves and are rotatably connected with necking grooves at the tops of the sliding grooves, the first driving shaft and the second driving shaft which are positioned in the sliding grooves are provided with threaded structures, an L type sliding plate is arranged in the sliding grooves, threaded holes matched with the threaded structures of the first driving shaft and the second driving shaft are formed in a horizontal plate of the sliding plate, and a vertical plate of the sliding plate is fixedly connected to the bottom end of the side wall of the door.

As optimization, an auxiliary plate is arranged on one side of the sliding plate, which is far away from the door plate, the auxiliary plate is arranged in a sliding groove in the vertical direction, an accommodating groove matched with the auxiliary plate is arranged on the upper side of the sliding groove, a push block is arranged on one side of the auxiliary plate, which faces the door plate, and the width of the accommodating groove is equal to the whole width of the widest part of the auxiliary plate and the push block; auxiliary grooves are formed in the positions, corresponding to the push blocks, of the side walls of the door panel; the side wall of the accommodating groove is provided with a push rod channel, the push rod channel is of a structure with necking holes at two ends of a middle cylindrical cavity, a push rod penetrates through the push rod channel, a protrusion is arranged on the push rod, a compression spring penetrates between the protrusion and the necking hole of the push rod channel, one side, close to the door panel, of the push rod is coplanar with the side wall of the door panel, and one side, far away from the door panel, of the push rod is coplanar with the inner side of the auxiliary plate.

Preferably, the upper side of the sliding plate is fixedly connected with a threaded sleeve, and the threaded sleeve is matched with threaded structures on the first driving shaft and the second driving shaft.

Furthermore, one side of the push block, which is far away from the door panel, is an arc-shaped surface.

The beneficial effects of the utility model reside in that:

1. the door plate is controlled to ascend and descend in a threaded connection mode, so that the door plate is prevented from falling off and hurting people when an emergency occurs, and the overall safety factor is improved;

2. the push block is pushed to enter the auxiliary groove through the auxiliary plate, and when the sliding plate and the door plate are accidentally separated, the auxiliary plate plays a role of auxiliary support, prevents the door plate from falling off and injuring people, and improves the overall safety coefficient;

3. the connection strength of the sliding plate, the first driving shaft and the second driving shaft is enhanced through the threaded sleeves, and tripping is prevented.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic sectional view of the present invention.

Fig. 3 is a schematic view of the position of the push rod.

FIG. 4 is a schematic view of the door panel lifting effect.

Fig. 5 is a schematic view of a cambered surface push rod structure.

FIG. 6 is a schematic view of the position of the threaded sleeve.

In the figure: the sliding type door comprises a base 1, a supporting frame 2, a door panel 3, an accommodating cavity 4, a motor 5, a connecting shaft 6, a first bevel gear 7, a second bevel gear 8, a first driving shaft 9, a second driving shaft 10, a baffle plate 11, a supporting plate 12, a sliding groove 13, a necking groove 14, a sliding plate 15, a threaded hole 16, an auxiliary plate 17, an accommodating groove 18, a pushing block 19, an auxiliary groove 20, a pushing rod channel 21, a pushing rod 22, a protrusion 23, a compression spring 24 and a threaded sleeve 25.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings, which are only used for illustrating the technical solutions of the present invention and are not limited.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention; furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated; thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other; the specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

A coal mine safety door comprises a base 1 and a support frame 2 fixedly connected to the base 1, a door plate 3 is arranged in the support frame 2, the door plate 3 can be a solid door plate 1, the door plate 1 with a fence structure in the middle of connecting columns is arranged on the left side and the right side, a closed accommodating cavity 4 is arranged in the base 1, a motor 5 is arranged on the right side of the accommodating cavity 4, the motor 5 can be a speed reducing motor and ensures stable and slow rotating speed, the motor 5 is fixedly connected to the lower wall of the accommodating cavity 4 through bolts, a motor shaft of the motor 5 is connected with a connecting shaft 6 through a coupler, the left side and the right side of the connecting shaft 6 are in key connection with a first helical gear 7, a second helical gear 8 matched with the first helical gear 7 is arranged in the vertical direction, the second helical gear 8 is fixedly connected with a first driving shaft 9 and a second driving shaft 10 through a key connection or welded, baffles 11 with inverted U-shaped cross sections are arranged on the left side and the left side of the accommodating cavity 4, the first driving shaft 9 and the second helical gear 7 penetrate through a screw thread sliding plate 10, when the second helical gear 8 is fixedly connected with the sliding shaft 7, the sliding plate 7, the sliding mechanism is arranged on the sliding plate, the sliding mechanism is arranged on the sliding mechanism, when the sliding mechanism, the sliding mechanism is arranged on the sliding mechanism, the sliding mechanism is arranged on the sliding mechanism, the sliding mechanism is arranged.

Considering that when the sliding plate 15 is suddenly and accidentally disconnected with the side wall of the door panel 2, the door panel is separated and falls to hurt people; an auxiliary plate 17 is arranged on one side of the sliding plate 15, which is far away from the door plate 3, the auxiliary plate 17 is vertically arranged in the sliding groove 13, an accommodating groove 18 matched with the auxiliary plate 17 is arranged on the upper side of the sliding groove 13, a push block 19 is arranged on one side of the auxiliary plate 17, which faces the door plate 3, and the width of the accommodating groove 18 is equal to the whole width of the widest part of the auxiliary plate 17 and the push block 19; an auxiliary groove 20 is formed in the side wall of the door panel 3 corresponding to the push block 19; the vertical length of the auxiliary groove 20 is larger than that of the push block 19; a push rod channel 21 is arranged on the side wall of the accommodating groove 18, the push rod channel 21 is of a structure with two end necking of a middle cylindrical cavity, a push rod 22 penetrates through the push rod channel 21, a protrusion 23 is arranged on the push rod 22, a compression spring 24 penetrates between the protrusion 23 and the necking of the push rod channel 21, one side, close to the door plate 3, of the push rod 22 is coplanar with the side wall of the door plate 3, and one side, far away from the door plate 3, of the push rod 22 is coplanar with the inner side of the auxiliary plate 17; one side of the push rod 22 far away from the door panel 3 is an arc-shaped surface; when the door panel 3 rises slowly, the auxiliary plate 17 moves towards the accommodating groove 18, the push block 19 pushes the push rod 22 to move towards the auxiliary groove 20, and even if the movable plate 15 is suddenly and accidentally disconnected with the side wall of the door panel 2, the push rod 22 can also clamp the upper wall of the accommodating groove 18 to prevent the door panel 3 from falling; when the door panel descends, the push block 19 leaves the push rod 22, and the push rod 22 is restored to the original position due to the action of the compression spring 24.

In order to increase the connection strength of the sliding plate 15 with the first driving shaft 9 and the second driving shaft 10, the tripping is prevented; the upper side of the sliding plate 15 is fixedly connected with a threaded sleeve 25, and the threaded sleeve 25 is matched with the threaded structures on the first driving shaft 9 and the second driving shaft 9.

Although the present invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that various changes and modifications can be made in the embodiments described above, or equivalent changes and modifications can be made to some of the technical features of the embodiments described above, and any changes, equivalents, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a coal mine emergency exit, includes base and fixed connection in the support frame of base, be equipped with door plant, its characterized in that in the support frame: a closed accommodating cavity is formed in the base, a motor is arranged on the right side of the accommodating cavity, and the motor is fixedly connected to the lower wall of the accommodating cavity through a bolt; a motor shaft of the motor is connected with a connecting shaft through a coupler, the left side and the right side of the connecting shaft are in key connection with a first bevel gear, and a second bevel gear matched with the first bevel gear is arranged in the vertical direction; the second bevel gears on the left side and the right side are fixedly connected with the first driving shaft and the second driving shaft respectively; the left side and the right side of the accommodating cavity are respectively provided with a baffle with an inverted U-shaped section, and the first driving shaft and the second driving shaft penetrate through the center of the upper wall of the baffle; a support plate is fixedly connected to the first drive shaft and the second drive shaft between the upper wall of the accommodating cavity and the baffle plate, and the lower wall of the support plate is in contact with the upper wall of the baffle plate;

2. A coal mine safety door according to claim 1, wherein: an auxiliary plate is arranged on one side of the sliding plate, which is far away from the door plate, the auxiliary plate is arranged in the sliding groove in the vertical direction, an accommodating groove matched with the auxiliary plate is arranged on the upper side of the sliding groove, a push block is arranged on one side of the auxiliary plate, which faces the door plate, and the width of the accommodating groove is equal to the whole width of the widest part of the auxiliary plate and the push block; auxiliary grooves are formed in the positions, corresponding to the push blocks, of the side walls of the door panel; the side wall of the accommodating groove is provided with a push rod channel, the push rod channel is of a structure with necking holes at two ends of a middle cylindrical cavity, a push rod penetrates through the push rod channel, a protrusion is arranged on the push rod, a compression spring penetrates between the protrusion and the necking hole of the push rod channel, one side, close to the door panel, of the push rod is coplanar with the side wall of the door panel, and one side, far away from the door panel, of the push rod is coplanar with the inner side of the auxiliary plate.

3. A coal mine safety door according to any one of claims 1 to 2, wherein: the upper side of the sliding plate is fixedly connected with a threaded sleeve which is matched with threaded structures on the first driving shaft and the second driving shaft.

4. A coal mine safety door according to claim 2, wherein: one side of the push block, which is far away from the door plate, is an arc-shaped surface.