CN212614785U

CN212614785U - Coal mining tunnel protective bracket

Info

Publication number: CN212614785U
Application number: CN201922131982.9U
Authority: CN
Inventors: 张锋; 穆成; 张磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2021-02-26
Anticipated expiration: 2029-12-03

Abstract

The utility model provides a coal mining tunnel protective bracket relates to coal mining technology field, including the locating lever, protector includes first protection frame, and first protection frame cover is established on the locating lever and the locating lever rotates to be connected, and the cover is established and is rotated on the locating lever and be connected with second protection frame, and one side lateral wall of first protection frame is provided with strutting arrangement, and strutting arrangement's one end insert in the second protection frame and rather than inner wall sliding connection. Adopt protector and strutting arrangement, use bracing piece and second protection frame to support the tunnel, avoid the tunnel to collapse endanger user's safety to place the fixture block through the rack and effectively prevent that rubble and hack from falling into the tunnel, the device's the effective improve equipment's of application security and stability adopt fixing device, use the inserted bar to fix equipment, prevent that the tradition from fixing the maintenance in the equipment later stage of being not convenient for through the welded mode.

Description

Coal mining tunnel protective bracket

Technical Field

The utility model relates to a coal mining technology field especially relates to a coal mining tunnel protective bracket.

Background

Coal mining is that valuable coal is separated from underground or earth surface and transported away from the site, coal deposits are layered, the distribution range is wide, the reserves are large, the coal quality is crisp, the coal deposits are easy to cut and break, the mining is often accompanied with disasters such as water, fire, gas and the like, compared with mining other mineral reserves, the coal mining technology has different characteristics, and the mining modes are divided into open-pit mining and underground mining.

Along with the development of society, industry level's improvement, present most colliery is excavated and is mined, need protect the tunnel in the mining process, but present most tunnel is through welded fastening when the construction, the equipment later maintenance of being not convenient for.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a coal mining roadway protective support.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a coal mining roadway protection support comprises a positioning rod and a protection device, wherein the protection device comprises a first protection frame, the first protection frame is sleeved on the positioning rod and is in rotating connection with the positioning rod, a second protection frame is sleeved on the positioning rod and is in rotating connection with the positioning rod, and a supporting device is arranged on the inner wall of the first protection frame; the supporting device comprises a stress block, the side wall of the stress block is fixedly connected with the side wall of the first protection frame, the inner wall of the stress block is connected with a supporting rod in a rotating mode, the inner wall of the second protection frame is provided with a sliding groove, the sliding groove is connected with a sliding block in the sliding groove, the inner wall of the sliding block is provided with a fixing device, and one end of the supporting rod is connected with the inner wall of the sliding block in a rotating mode.

The fixing device comprises a compression spring, one end of the compression spring is fixedly connected with the inner cavity of the sliding block, one end of the compression spring is fixedly connected with an insertion rod, the side wall of the insertion rod is fixedly connected with a pull rod, the inner wall of the sliding groove is provided with a slot, and the insertion rod is inserted into the slot and is abutted to the inner wall of the slot.

The side wall of the sliding block is provided with a control groove, the pull rod penetrates through the control groove, and the side wall of the pull rod is connected with the inner wall of one side of the control groove in a sliding mode.

The lateral wall fixedly connected with dog of first protection frame, the dog is the arc, the outer wall of dog adopts abrasive paper to polish and handles.

The equal fixedly connected with lug that a plurality of equidistant settings of outer wall of first protection frame and second protection frame, the lug is triangle-shaped, the equal fixedly connected with rack of inner wall of first protection frame and second protection frame, the rack is the L type and adopts grey cast iron to pour and tailor and make. Advantageous effects

1. The utility model discloses in, adopt protector and strutting arrangement, use bracing piece and second protection frame to support the tunnel, avoid the tunnel to collapse endanger user's safety to place the fixture block through the rack and effectively prevent that rubble and hack from falling into the tunnel, the device's the effective improve equipment's of application security and stability.

2. The utility model discloses in, adopt fixing device, use the inserted bar to fix equipment, prevent that the tradition from fixing the maintenance in the equipment later stage of being not convenient for through welded mode, the device's use effectively improves equipment's life.

Drawings

Fig. 1 is a front view of a coal mining roadway protection bracket provided by the utility model;

FIG. 2 is a bottom view of the coal mining roadway protective bracket of the present invention;

FIG. 3 is a rear view of a coal mining roadway protective bracket according to the present invention;

fig. 4 is the utility model provides a fixing device's in coal mining tunnel protective bracket structural schematic.

Illustration of the drawings: 1. a guard; 11. a first protective frame; 12. a second protective frame; 2. a support device; 21. a chute; 22. a slider; 23. a support bar; 24. a stress block; 3. placing a rack; 4. positioning a rod; 5. A stopper; 6. a bump; 7. a fixing device; 71. a compression spring; 72. a pull rod; 73. and (4) inserting the rod.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

The specific embodiment is as follows:

referring to fig. 1-4, a coal mining roadway protection bracket comprises a positioning rod 4, a protection device 1 comprises a first protection frame 11, a stop block 5 is fixedly connected to the top end of the outer wall of the first protection frame 11, the stop block 5 is arc-shaped, the side wall of the stop block 5 is polished by abrasive paper, the first protection frame 11 is sleeved on the positioning rod 4 and is rotatably connected with the positioning rod 4, a second protection frame 12 is sleeved on the positioning rod 4 and is rotatably connected with the positioning rod 4, a plurality of protruding blocks 6 which are arranged at equal intervals are fixedly connected to the outer walls of the first protection frame 11 and the second protection frame 12, the protruding blocks 6 are triangular, a placing frame 3 is fixedly connected to the inner walls of the first protection frame 11 and the second protection frame 12, the placing frame 3 is L-shaped and is made by pouring and cutting gray cast iron, a support device 2 is arranged on the inner wall of the first protection frame 11, the support device 2 comprises a stress block 24, one side wall of the stress, the inner wall of the stress block 24 is rotatably connected with a supporting rod 23, the inner wall of the second protection frame 12 is provided with a sliding groove 21, a sliding block 22 is slidably connected in the sliding groove 21, the side wall of the sliding block 22 is provided with a control groove, a pull rod 72 penetrates through the control groove, the side wall of the pull rod 72 is slidably connected with the inner wall of the control groove, the inner wall of the sliding block 22 is provided with a fixing device 7, the side wall of the supporting rod 23 is rotatably connected with the inner wall of the sliding block 22, when the device is used, the device is placed in a coal mining roadway, the first protection frame 11 and the convex block 6 are abutted against the inner wall of the coal mining roadway, the supporting rod 23 and the sliding block 22 are pushed in the direction away from the stop block 5, the sliding block 22 slides in the sliding groove 21, the second protection frame 12 rotates along with the device and is propped against the other side of the coal mining roadway, the stop block 5 is abutted against the inner top wall of the coal, use bracing piece 23 and second protection frame 12 to support the tunnel, avoid the tunnel to collapse endangers user's safety to place the fixture block through rack 3 and effectively prevent rubble and hack from falling into the tunnel, the device's application effectively improves equipment's security and stability.

The fixing device 7 comprises a compression spring 71, one end of the compression spring 71 is fixedly connected with an inner cavity of the sliding block 22, one end of the compression spring 71 is fixedly connected with an inserting rod 73, one side wall of the inserting rod 73 is fixedly connected with a pull rod 72, the inner wall of the sliding groove 21 is provided with an inserting groove, the inserting rod 73 is inserted into the inserting groove and is abutted against the inner wall of the inserting groove, when the fixing device is fixed, the sliding block 22 slides and props open the second protection frame 12, the compression spring 71 loses constraint and pushes the inserting rod 73 to eject into the inserting groove to fix the sliding block 22 and the support rod 23, when the dismounting device is used, the pull rod 72 is pulled towards the direction far away from the second protection frame 12 to drive the inserting rod 73 to displace, the compression spring 71 deforms to generate elastic force, when the dismounting device is used for remounting, the sliding block 22 is only needed to be pushed and fixed through the inserting rod 73, through the arrangement of, the application of the device effectively prolongs the service life of the equipment.

The utility model discloses a theory of operation: when the device is used, the device is placed in a coal mining roadway, the first protection frame 11 and the convex block 6 are abutted against the inner wall of the coal mining roadway, the support rod 23 and the slide block 22 are pushed in the direction far away from the stop block 5, the slide block 22 slides in the sliding groove 21, the second protection frame 12 rotates along with the rotation and is propped open towards the other side of the coal mining roadway, the stop block 5 is abutted against the inner top wall of the coal mining roadway to prop up the roadway, a plurality of devices are matched and insert the fixture blocks into the placing frame 3, the roadway is supported by the support rod 23 and the second protection frame 12 by arranging the protection device 1 and the support device 2, the collapse of the roadway is avoided, the safety of a user is endangered, and the fixture blocks are placed by the placing frame 3 to effectively prevent broken stones and broken soil from falling into the roadway, the application of the device effectively improves the safety and stability of the device, when the device is fixed, the slide block 22 slides and props up the second protection frame 12, the compression spring 71 loses constraint and, when dismantling to the direction pulling pull rod 72 of keeping away from second protection frame 12 and drive inserted bar 73 displacement, compression spring 71 warp and produce elasticity, only need during the reinstallation with slider 22 promote and fixed through inserted bar 73 can, through setting up fixing device 7, use inserted bar 73 to fix equipment, prevent that the tradition from fixing the maintenance of the equipment later stage of being not convenient for through the welded mode, the device's use effectively improves the life of equipment.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a coal mining tunnel protective bracket, includes locating lever (4), its characterized in that: the protection device (1) is arranged, the protection device (1) comprises a first protection frame (11), the first protection frame (11) is sleeved on the positioning rod (4) and is rotatably connected with the positioning rod (4), the positioning rod (4) is sleeved and rotatably connected with a second protection frame (12), and a supporting device (2) is arranged on the inner wall of the first protection frame (11);

support arrangement (2) are including atress piece (24), the lateral wall of atress piece (24) and the lateral wall fixed connection of first protection frame (11), the inner wall of atress piece (24) rotates and is connected with bracing piece (23), spout (21) have been seted up to the inner wall of second protection frame (12), sliding connection has slider (22) in spout (21), the inner wall of slider (22) is provided with fixing device (7), the one end of bracing piece (23) rotates with the inner wall of slider (22) and is connected.

2. The coal mining roadway protection bracket according to claim 1, characterized in that: fixing device (7) include compression spring (71), the one end of compression spring (71) and the inner chamber fixed connection of slider (22), the one end fixedly connected with inserted bar (73) of compression spring (71), lateral wall fixedly connected with pull rod (72) of inserted bar (73), the slot has been seted up to the inner wall of spout (21), inserted bar (73) insert in the slot and offset rather than the inner wall.

3. A coal mining roadway protective bracket according to claim 2, characterized in that: the lateral wall of slider (22) has seted up the control groove, pull rod (72) run through the control groove, the lateral wall of pull rod (72) and one side inner wall sliding connection in control groove.

4. The coal mining roadway protection bracket according to claim 1, characterized in that: lateral wall fixedly connected with dog (5) of first protection frame (11), dog (5) are the arc, the outer wall of dog (5) adopts abrasive paper to polish and handles.

5. The coal mining roadway protection bracket according to claim 1, characterized in that: the outer wall of first protection frame (11) and second protection frame (12) is equal a plurality of lug (6) that the equidistant setting of fixedly connected with, lug (6) are triangle-shaped, the equal fixedly connected with rack (3) of inner wall of first protection frame (11) and second protection frame (12), rack (3) are the L type and adopt grey cast iron to pour and tailor and make.