Anchor cable anti-falling and anti-caving protection device

Abstract

The utility model discloses an anchor cable anti-falling and anti-caving protection device which comprises a first locking block and a second locking block which are fixedly connected to the outer side of an anchor cable, the upper surface of the first locking block abuts against a bearing plate used for supporting a top plate, and the lower surface of the bearing plate is fixedly connected with an elastic composite cylinder. And the lower end of the elastic composite barrel is erected on the upper surface of the second locking block, a buffer spring is arranged on the inner side of the elastic composite barrel, and a plurality of traction mechanisms for preventing the elastic composite barrel from falling are fixedly installed on the lower surface of the top plate. When the anchor cable is broken, instant impact force generated by the anchor cable can be transmitted to the buffer spring, the impact force can be transmitted to the elastic composite cylinder after being buffered by the buffer spring, the air in the annular groove can be compressed by the annular sealing ring due to the fact that the fixed cylinder slides in the annular groove, and the compressed air rebounds; and finally, the traction mechanism is used for pulling the movable cylinder body, so that the situation that field personnel are injured after the anchor cable falls and collapses is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to anchor cable technical field, concretely is a kind of anchor cable anti-falling and anti-collapse protection device. BACKGROUND

[0002] At present, in the process of coal mining, anchor net support is one of the most effective ways of roadway support, and anchor cable is one of the main support components of anchor net support, which plays a major anchoring stress role in anchor net support. With the increase of coal mining depth, the ground stress is getting bigger and bigger, and the ordinary geological conditions often show complex and nonlinear characteristics in deep part. Under this condition, especially under the impact condition or impact condition of the surrounding rock of roadway, the anchor cable under high stress state is prone to collapse, and the collapsed anchor cable will produce a huge impact force under certain conditions, which will cause property damage and personnel injury accidents.

[0003] Therefore, how to avoid the harm to workers caused by anchor cable falling and collapsing under high stress state is a problem to be solved in high ground stress and impact type roadway. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a kind of anchor cable anti-falling and anti-collapse protection device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of anchor cable anti-falling and anti-collapse protection device, including the first lock block and second lock block of fixed connection in the outer side of anchor cable, the upper surface of first lock block is tightly closed with the load-bearing plate for supporting roof, the lower surface of load-bearing plate is fixedly connected with elastic composite cylinder, and the lower end of elastic composite cylinder is arranged on the upper surface of second lock block, the inside of elastic composite cylinder is provided with buffer spring, and anchor cable is sequentially penetrated from top to bottom through roof, load-bearing plate, buffer spring and elastic composite cylinder, the lower surface of roof is fixedly installed with multiple traction mechanisms for preventing elastic composite cylinder from falling;

[0006] The elastic composite cylinder includes fixed cylinder body and movable cylinder body, the upper end of movable cylinder body is provided with annular groove, the lower end of fixed cylinder body is fixedly connected with annular sealing ring, and the annular sealing ring is slidably connected in annular groove.

[0007] Preferably, the inside of annular groove is filled with compressed air.

[0008] Preferably, the outside of movable cylinder body is fixedly connected with inflation tube, the inflation tube extends into annular groove, and one-way valve is arranged on inflation tube.

[0009] Preferably, the number of traction mechanisms is four groups, and four groups of traction mechanisms are annularly arrayed on the outside of elastic composite cylinder.

[0010] Preferably, the traction mechanism comprises a fixing piece, a supporting block, a shaft rod, a steel wire rope and two T-shaped pins, the fixing piece is fixedly connected to the lower surface of the top plate, the supporting block is fixedly connected to the lower end of the fixing piece, the shaft rod is rotatably connected to the inner side of the supporting block, the steel wire rope is wound around the shaft rod and both ends of the steel wire rope are fixedly connected with the T-shaped pins, the outer surface of the movable cylinder body is fixedly connected with a plurality of first ear plates and a plurality of second ear plates in an annular array, and the two T-shaped pins are respectively inserted on the first ear plates and the second ear plates.

[0011] Preferably, the fixing piece is a bolt welded on the anchor net.

[0012] Preferably, the outer surface of the shaft rod is sleeved with a pressure ring, the lower surface of the movable cylinder body is provided with an alarm, and the alarm is signal connected with the pressure ring.

[0013] Beneficial effects

[0014] The anchor cable anti-falling and anti-collapse protection device has the following beneficial effects:

[0015] 1. The anchor cable anti-falling and anti-collapse protection device, through the setting of the elastic composite cylinder, the buffer spring and the traction mechanism, when the anchor cable breaks, the instantaneous impact force generated by the anchor cable is transmitted to the buffer spring, after the buffering of the buffer spring, the impact force is transmitted to the elastic composite cylinder, the fixed cylinder body slides in the annular groove, the annular sealing ring compresses the air in the annular groove, and the air rebounds after being compressed, so that the impact force after the anchor cable breaks is further buffered, and finally the traction mechanism pulls the movable cylinder body, so that the harm to the workers caused by the falling and collapse of the anchor cable is effectively avoided.

[0016] 2. The anchor cable anti-falling and anti-collapse protection device, through the setting of the traction mechanism, the two T-shaped pins are pulled by the steel wire rope, and the T-shaped pins are limited by the first ear plates and the second ear plates, so that the four steel wire ropes can simultaneously exert pulling force on the eight points on the outer side of the fixed cylinder body, thereby effectively sharing the impact force and improving the safety performance of the protection device.

[0017] 3. The anchor cable anti-falling and anti-collapse protection device, through the setting of the pressure ring and the alarm, when the anchor cable breaks, the pressure borne by the pressure ring increases, a signal is sent to the alarm through the pressure ring, the alarm can be turned on, and the workers nearby can be warned. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole three-dimensional structure schematic view of the anchor cable anti-falling and anti-collapse protection device.

[0019] Figure 2 It is a sectional three-dimensional structure schematic view of the anchor cable anti-falling and anti-collapse protection device.

[0020] Figure 3 The utility model provides a kind of anchor cable anti-falling anti-collapse protection device's Figure 2 Amplification structure schematic view in middle A;

[0021] Figure 4 The utility model provides a kind of anchor cable anti-falling anti-collapse protection device's support block sectional structure schematic view.

[0022] In drawing:1, anchor cable;2, first lock block;3, second lock block;4, top plate;5, bearing plate;6, elastic composite cylinder;7, buffer spring;8, traction mechanism;9, fixed cylinder body;10, movable cylinder body;11, annular groove;12, annular sealing ring;13, inflatable pipe;14, one-way valve;15, fixed part;16, support block;17, shaft;18, steel wire rope;19, T-shaped pin;20, first ear plate;21, second ear plate;22, pressure ring;23, alarm. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] Embodiment 1, please refer to Figures 1-4The utility model provides a technical scheme: an anchor cable anti-falling and anti-collapse protection device, first locking block 2 and second locking block 3 are fixedly connected on the outside of anchor cable 1, the upper surface of first locking block 2 is tightly provided with the load bearing plate 5 for supporting roof 4, the lower surface of load bearing plate 5 is fixedly connected with elastic composite cylinder 6, and the lower end of elastic composite cylinder 6 is arranged on the upper surface of second locking block 3, the inside of elastic composite cylinder 6 is provided with buffer spring 7, and anchor cable 1 is sequentially penetrated from top to bottom roof 4, load bearing plate 5, buffer spring 7 and elastic composite cylinder 6, the lower surface of roof 4 is fixedly installed with a plurality of traction mechanism 8 of preventing the falling of elastic composite cylinder 6, and elastic composite cylinder 6 includes fixed cylinder body 9 and movable cylinder body 10, the upper end of movable cylinder body 10 is provided with annular groove 11, the lower end of fixed cylinder body 9 is fixedly connected with annular sealing ring 12, annular sealing ring 12 is slidably connected in annular groove 11, by setting elastic composite cylinder 6, buffer spring 7 and traction mechanism 8 etc., when anchor cable 1 breaks, the instantaneous impact force generated by anchor cable 1 will be transmitted to buffer spring 7, after the buffering of buffer spring 7, the impact force will be transmitted to elastic composite cylinder 6, by the sliding of fixed cylinder body 9 in annular groove 11, annular sealing ring 12 will compress the air in annular groove 11, and the rebound of air after compression can further buffer the impact force after the breakage of anchor cable 1, finally by traction mechanism 8 pulling movable cylinder body 10, effectively avoid the harm to staff after the falling and collapse of anchor cable 1.

[0025] The inside of annular groove 11 is filled with compressed air, the outside of movable cylinder body 10 is fixedly connected with inflation pipe 13, inflation pipe 13 extends to annular groove 11, and inflation pipe 13 is provided with one-way valve 14, by setting inflation pipe 13 and one-way valve 14, by inflating inflation pipe 13 with the inflator, the air in annular groove 11 can be filled, by one-way valve 14, the air leakage in annular groove 11 can be effectively avoided, thereby increasing the air pressure in annular groove 11.

[0026] The number of traction mechanisms 8 is four groups, and the four groups of traction mechanisms 8 are arranged in an annular array on the outside of the elastic composite cylinder 6, the traction mechanism 8 comprises a fixing piece 15, a supporting block 16, a shaft rod 17, a steel wire rope 18 and two T-shaped pins 19, the fixing piece 15 is fixedly connected to the lower surface of the top plate 4, the supporting block 16 is fixedly connected to the lower end of the fixing piece 15, the shaft rod 17 is rotatably connected to the inner side of the supporting block 16, the steel wire rope 18 is wound around the shaft rod 17 and both ends are fixedly connected with the T-shaped pins 19, and the outer surface of the movable cylinder body 10 is fixedly connected with a plurality of first ear plates 20 and a plurality of second ear plates 21 in an annular array, and the two T-shaped pins 19 are respectively inserted on the first ear plate 20 and the second ear plate 21, and the fixing piece 15 is a bolt welded on the anchor net, by setting the traction mechanism 8, the two T-shaped pins 19 are pulled by the steel wire rope 18, and then the T-shaped pins 19 are limited by the first ear plate 20 and the second ear plate 21, so that the four steel wire ropes 18 can simultaneously exert a pulling force on the eight points on the outside of the fixed cylinder body 9, thereby effectively sharing the impact force and improving the safety performance of the protection device.

[0027] By setting the shaft rod 17, the steel wire rope 18 can be moved by rotating the shaft rod 17, so that the steel wire rope 18 is taut to form a triangular structure, thereby improving the stability.

[0028] Embodiment 2, please refer to Figures 1-4 , including embodiment 1, and on the basis of embodiment 1, the utility model provides a technical scheme: the outer surface of the shaft rod 17 is sleeved with a pressure ring 22, and the lower surface of the movable cylinder body 10 is provided with an alarm 23, and the alarm 23 is signal connected with the pressure ring 22, by setting the pressure ring 22 and the alarm 23, when the anchor cable 1 breaks, the pressure borne by the pressure ring 22 will increase, and the alarm 23 can be started by sending a signal to the alarm 23 through the pressure ring 22, so as to warn the nearby workers.

[0029] The utility model discloses the embodiment in the drawing, only relate to the structure involved in the embodiment of the disclosure, other structures can refer to the usual design, under the condition of not conflicting, the same embodiment and different embodiments of the utility model can be combined with each other;

[0030] Finally: the above only for preferred embodiment of the utility model has, and does not use for limiting the utility model, any modification, equivalent replacement, improvement etc. that is made in the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. An anchor cable anti-falling and anti-collapse protection device, comprising a first locking block (2) and a second locking block (3) fixedly connected on the outside of an anchor cable (1), characterized in that: The upper surface of the first locking block (2) abuts against a bearing plate (5) for supporting a top plate (4), the lower surface of the bearing plate (5) is fixedly connected with an elastic composite cylinder (6), and the lower end of the elastic composite cylinder (6) is arranged on the upper surface of the second locking block (3), the inner side of the elastic composite cylinder (6) is provided with a buffer spring (7), and the anchor cable (1) penetrates the top plate (4), the bearing plate (5), the buffer spring (7) and the elastic composite cylinder (6) from top to bottom, and the lower surface of the top plate (4) is fixedly provided with a plurality of traction mechanisms (8) for preventing the elastic composite cylinder (6) from falling. The elastic composite cylinder (6) comprises a fixed cylinder body (9) and a movable cylinder body (10), the upper end of the movable cylinder body (10) is provided with an annular groove (11), and the lower end of the fixed cylinder body (9) is fixedly connected with an annular sealing ring (12) which is slidably connected in the annular groove (11).

2. The kind of anchor cable anti-dropping and anti-collapse protection device according to claim 1, characterized in that: The annular groove (11) is filled with compressed air.

3. The fall and collapse protection device of claim 2, wherein: The outer side of the movable cylinder body (10) is fixedly connected with an inflation pipe (13) which extends into the annular groove (11), and the inflation pipe (13) is provided with a one-way valve (14).

4. The cable anti-falling and anti-collapse protection device according to claim 1, characterized in that: The number of the traction mechanisms (8) is four groups, and the four groups of traction mechanisms (8) are arranged in an annular array on the outer side of the elastic composite cylinder (6).

5. The fall and collapse protection device of claim 4, wherein: The traction mechanism (8) comprises a fixed part (15), a supporting block (16), a shaft rod (17), a steel wire rope (18) and two T-shaped pins (19), the fixed part (15) is fixedly connected to the lower surface of the top plate (4), the supporting block (16) is fixedly connected to the lower end of the fixed part (15), the shaft rod (17) is rotatably connected to the inner side of the supporting block (16), the steel wire rope (18) is wound around the shaft rod (17) and both ends are fixedly connected with the T-shaped pins (19), the outer surface of the movable cylinder body (10) is fixedly connected with a plurality of first ear plates (20) and a plurality of second ear plates (21) in an annular array, and the two T-shaped pins (19) are respectively inserted into the first ear plates (20) and the second ear plates (21).

6. The fall and collapse protection device of claim 5, wherein: The fixed part (15) is a bolt welded on the anchor net.

7. The cable anti-falling and anti-collapse protection device according to claim 5, characterized in that: The outer surface of the shaft rod (17) is sleeved with a pressure ring (22), the lower surface of the movable cylinder body (10) is provided with an alarm (23), and the alarm (23) is signal connected with the pressure ring (22).

Images