Mining anti-impact personnel limiting device

Abstract

The utility model provides a mining scour-preventing and person-limiting device which comprises a bearing door box, an active door body and a folding door body, and the rotatable active door body is arranged on one side of the bearing door box; the folding door body is arranged on the side, away from the bearing door box, of the active door body through a hinge mechanism, a rotary connecting rod mechanism is arranged at the top of the active door body and the top of the folding door body, and the folding door body is folded or opened along with the action of the active door body under the action of the rotary connecting rod mechanism; lifting supporting leg sets are arranged on the front side and the rear side of the bottom of the bearing door box correspondingly, and each lifting supporting leg set comprises two lifting supporting legs and a manual assembly used for controlling the two lifting supporting legs to ascend and descend synchronously. According to the mining scour-preventing and person-limiting device, the active door body and the folding door body are arranged on one side of the bearing door box in a suspended mode, the lifting supporting legs are fixed to the bottom of the bearing door box, the distance between the active door body and the roadway ground and the distance between the folding door body and the roadway ground are adjusted through the lifting supporting legs, and it is guaranteed that rotation of the door bodies is not affected by the roadway ground.

Description

TECHNICAL FIELD

[0001] The utility model relates to mine security equipment field, especially is involved in a mine anti -impact limit device. BACKGROUND

[0002] Rock burst is one of the most serious natural disasters in coal mine in the world, its suddenness and danger constitute a great threat to the safety of miners. With the increasing depth of mine exploitation, mine pressure appears frequently, and the anti -impact work has become increasingly important, especially the prevention and management of anti -impact of kilometer deep well, and the anti -impact management will determine the survival of the mine.

[0003] In order to ensure the life of the operating personnel, the underground mining working face adopts the limit management measure, at present, the coal mine with rock burst

[0004] The coal mine with rock burst generally sets up the gate machine as the limit device to limit personnel access in the rock burst dangerous area. However, due to the uneven ground of the roadway, the slope of different positions is also different, so the gate machine needs to be installed after the ground is leveled, and the whole process is relatively time -consuming and labor -intensive. SUMMARY

[0005] The utility model provides a mine anti -impact limit device, rotatable suspension type door body is arranged in the one side of bearing door box, and the lifting support leg is fixed in the bottom of bearing door box, the distance between door body and roadway ground is adjusted by using lifting support leg, and it is ensured that the rotation of door body is not affected by roadway ground.

[0006] The utility model adopts the technical scheme that:

[0007] A mine anti -impact limit device, including bearing door box, initiative door body, folding door body, the one side of bearing door box is provided with rotatable initiative door body, and the initiative door body is driven to open and close by first motor;The folding door body is arranged in the side of initiative door body away from bearing door box through hinge mechanism, and the top of initiative door body and folding door body is provided with rotary connecting rod mechanism, and the folding door body is folded or opened under the action of rotary connecting rod mechanism with the action of initiative door body;The bottom front side and rear side of bearing door box are provided with lifting support leg group respectively, and the lifting support leg group includes two lifting support legs, and the manual assembly for controlling the synchronous up and down of two lifting support legs.

[0008] As preferred, the upper and lower ends of the door box are respectively provided with an upper seat and a lower seat, the bottom of the upper seat is provided with a universal bearing seat, the top of the active door body is provided with a top connecting plate, the top connecting plate is rotationally connected with the universal bearing seat through a top fixing shaft, the top of the lower seat is provided with a bearing seat, the bottom of the active door body is provided with a bottom connecting plate, a fixing shaft at the bottom surface of the bottom connecting plate penetrates into the bearing seat and extends downward, a driven wheel is connected with the bearing seat and the lower seat, the first motor is arranged in the door box and has a driving wheel connected with its shaft end, and a belt is arranged around the driving wheel and the driven wheel.

[0009] As preferred, the outer side of the lower seat is provided with a protective shell for protecting the driven wheel, and the protective shell cooperates with the lower seat to form a closed space.

[0010] As preferred, the lifting leg comprises an outer frame sleeve fixed at the bottom of the door box and an inner frame sleeve slidingly arranged in the inner frame sleeve, the bottom of the inner frame sleeve is provided with a ring of mounting plates, the inner end of the inner frame sleeve is fixed with a moving nut, the moving nut is threadedly connected with a lead screw, the lower end of the lead screw is located in the inner frame sleeve, the manual assembly comprises a rotating shaft and a hand lever, the inner bottom surface of the door box is provided with two L-shaped plates, the vertical part and the horizontal part of the two L-shaped plates are respectively provided with a first bearing and a second bearing, the rotating shaft penetrates into the first bearing of the two L-shaped plates and extends out of the door box to be connected with the hand lever, the rotating shaft is provided with a first bevel gear close to the second bearing, the upper end of the lead screw penetrates through the door box and is fixed in the second bearing and extends out of the second bearing to be connected with a second bevel gear, and the second bevel gear cooperates with the first bevel gear.

[0011] As preferred, a plurality of groups of corresponding through holes are formed in the front and rear sides of the inner frame sleeve, the through holes are located on both sides of the lead screw, locking holes are formed in the front and rear sides of the outer frame sleeve and cooperate with the through holes, and the two rod bodies of the concave rod pass through the locking holes on one side of the outer frame sleeve, the through holes in the front and rear sides of the inner frame sleeve and the locking holes on the other side of the outer frame sleeve in sequence to fix the inner frame sleeve and the outer frame sleeve.

[0012] As preferred, the top of the door box is provided with a fixed frame capable of rotating in a circumferential direction, and the fixed frame is provided with a display screen.

[0013] As preferred, the inner top end of the door box is provided with a second motor, the second motor extends out of the top of the door box to be connected with a driving wheel, the top of the door box is provided with a slewing bearing engaged with the driving wheel, the fixed frame is mounted on the top of the slewing bearing and can rotate with the slewing bearing.

[0014] As preferred, the folding door body is provided with an adjustable extension door body away from the side of the main door body, the folding door body is composed of two vertical pipes and several horizontal pipes arranged between the two vertical pipes, the top horizontal pipe and the lower horizontal pipe of the folding door body are provided with several positioning through holes penetrating the upper and lower sides thereof; the extension door body is composed of a vertical pipe and several horizontal pipes arranged on one side of the vertical pipe, the horizontal rod of the extension door body is capable of sliding back and forth by being arranged in the interior of the horizontal rod of the folding door body, and the top horizontal pipe and the lower horizontal pipe of the extension door body are provided with fixing through holes matched with the positioning through holes at the top thereof, and the fixing through holes are locked by bolts and nuts.

[0015] Compared with the prior art, the beneficial effects of the utility model lie in that the mine-used anti-collision personnel limiting device suspends the main door body and the folding door body on one side of the bearing door box, fixes the lifting legs at the bottom of the bearing door box, adjusts the distance between the main door body, the folding door body and the roadway ground by the lifting legs, ensures that the rotation of the door body is not affected by the roadway ground, arranges the first motor for driving the main door body to open and close in the bearing door box, can effectively prevent dust and increase the service life thereof, and arranges the display screen on the top of the bearing door box by the circumferentially rotatable fixing frame, can adjust the angle of the display screen according to the use requirement, and is convenient for personnel to check. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model.

[0017] Figure 2 It is a structural schematic view of the bearing door box.

[0018] Figure 3 It is a partial structural exploded schematic view of the bearing door box.

[0019] Figure 4 It is a structural schematic view of the lifting leg.

[0020] Figure 5 It is a structural schematic view of the main door body, the folding door body and the extension door body.

[0021] In the figure: 1, bearing door box; 2, active door body; 3, folding door body; 4, first motor; 5, hinge mechanism; 6, rotary link mechanism; 7, lifting leg; 8, manual assembly; 9, upper seat; 10, lower seat; 11, universal bearing seat; 12, top connecting plate; 13, bearing seat; 14, bottom connecting plate; 15, driven wheel; 16, driving wheel; 17, protective shell; 18, through hole; 19, locking hole; 20, concave rod; 21, fixing frame; 22, display screen; 23, driving wheel; 24, rotary bearing; 25, extended door body; 26, positioning hole; 51, first hinge; 52, second hinge; 53, hinge shaft; 61, short rod; 62, rigid elbow; 63, pull rod; 71, outer frame sleeve; 72, inner frame sleeve; 73, moving nut; 74, lead screw; 75, second bevel gear; 81, rotating shaft; 82, hand lever; 83, first bearing; 84, second bearing; 85, first bevel gear. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model is further explained below in combination with specific embodiments. Among them, the drawings are only used for example explanation, and the representation is only a schematic diagram, and not a physical drawing, and it cannot be understood as the limitation of the patent; for the skilled in the art, it is understandable that some known structures and their description in the drawings can be omitted.

[0023] The utility model discloses a mine anti -collision limit device, including bearing door box 1, active door body 2, folding door body 3, the one side of bearing door box 3 is provided with rotatable active door body 2, active door body 2 is driven by first motor 4 and is opened and closed, folding door body 3 is set up in the side of active door body 2 away from bearing door box 1 through hinge mechanism 5, the top of active door body 2 and folding door body 3 is provided with rotary link mechanism 6, and folding door body 3 is folded or opened with the action of active door body 2 under the action of rotary link mechanism, the bottom front side, rear side of bearing door box 1 is provided with lifting leg group respectively, and the lifting leg group includes two lifting legs 7, and the manual assembly 8 for controlling two lifting legs synchronous up and down.

[0024] The active door body is arranged on one side of the bearing door box to rotate. The upper and lower ends of the bearing door box 1 are respectively provided with an upper seat 9 and a lower seat 10. The bottom of the lower seat 10 is provided with a universal bearing seat 11. The top of the active door body 2 is provided with a top connecting plate 12. The top connecting plate 12 is rotationally connected with the universal bearing seat 11 through a top fixing shaft. The top of the lower seat 10 is provided with a bearing seat 13. The bottom of the active door body 2 is provided with a bottom connecting plate 14. The bottom fixing shaft of the bottom connecting plate penetrates the bearing seat 13 and extends downward. A driven wheel 15 is connected with the bearing seat and the lower seat. The first motor 4 is arranged in the bearing door box 1 and has a driving wheel 16 connected with the shaft end. A belt is arranged between the driving wheel 16 and the driven wheel 15. An opening is formed in the bearing door box for the belt to pass through. In consideration of the quick installation of the door body in the later stage, the bearing seat and the driven wheel are fixed on the fixing shaft of the bottom connecting plate in advance. An opening slot is formed in the lower seat for the fixing shaft of the bottom connecting plate to pass through. The bottom connecting plate is arranged at the bottom of the active door body during installation. The universal bearing seat is fixed on the fixing shaft of the top connecting plate in advance. The top connecting plate is arranged at the top of the active door body during installation. The universal bearing seat is detachably arranged on the upper seat through bolts. The universal bearing seat can be adjusted left and right by loosening the bolts. The upper seat is detachably arranged on the side wall of the bearing door box through bolts. The upper seat can be adjusted front and back by loosening the bolts. During assembly, the lower bearing seat of the active door body is fixed first. The universal bearing seat and the upper seat are adjusted left and right and front and back to ensure that the active door body is vertically installed.

[0025] Further, the outer side of the lower seat 10 is provided with a protective shell 17 for protecting the driven wheel. The protective shell cooperates with the lower seat to form a rectangular closed space. An adaptive baffle is arranged at a position corresponding to the opening slot of the lower seat. After the adaptive baffle is blocked, a space for the fixing shaft of the bottom connecting plate to pass through is left in the opening slot.

[0026] The manual assembly controls the lifting of the two lifting legs. The lifting leg 7 comprises an outer sleeve 71 fixed at the bottom of the bearing door box 1, and an inner sleeve 72 slidably arranged in the outer sleeve 71. The bottom of the inner sleeve 72 is provided with a ring-shaped mounting plate, and the mounting plate is fixed by means of foundation bolts, thereby fixing the lifting leg. The upper end of the inner sleeve 72 is fixed with a moving nut 73, the moving nut 73 is threadedly connected with a lead screw 74, and the lower end of the lead screw 74 is located in the inner sleeve 72. The manual assembly 8 comprises a rotating shaft 81 and a hand lever 82. The inner bottom surface of the bearing door box is provided with two L-shaped plates, and the vertical parts and horizontal parts of the two L-shaped plates are respectively provided with first bearings 83 and second bearings 84. The rotating shaft 81 is arranged in the first bearings 83 of the two L-shaped plates, and one end of the rotating shaft 81 extends out of the bearing door box and is connected with the hand lever 82. First bevel gears 85 are arranged on the rotating shaft 81 near the second bearings 84. The upper end of the lead screw 74 is fixed in the second bearings 84 and extends out of the second bearings 84 and is connected with a second bevel gear 75. The second bevel gear 75 cooperates with the first bevel gears 85. The rotating shaft is rotated by the hand lever, the two first bevel gears on the rotating shaft are rotated, the two first bevel gears drive the respective second bevel gears to rotate, thereby causing the corresponding lead screws to rotate. The moving nut threadedly connected with the lead screw moves up and down, thereby causing the inner sleeve to move up and down in the outer sleeve, retracting or extending out of the outer sleeve, thereby shortening or increasing the lifting leg group. By adjusting the distance between the bottom of the bearing door box and the ground of the tunnel, the distance between the active door body, the folding door body and the ground of the tunnel is adjusted, so that it is suitable for tunnels with different unevenness.

[0027] In this embodiment, the lead screw and the moving nut are trapezoidal lead screws and corresponding nuts that can be self-locking. Of course, in order to further ensure that the lead screw and the moving nut do not move after self-locking, a plurality of groups of corresponding through holes 18 are formed in the front and rear sides of the inner sleeve 72, and the through holes are located on both sides of the lead screw. Locking holes 19 are formed in the front and rear sides of the outer sleeve 71 and cooperate with the through holes 18. The two rod bodies of the concave rod 20 pass through the locking holes on one side of the outer sleeve, the through holes on the front and rear sides of the inner sleeve, and the locking holes on the other side of the outer sleeve in sequence, thereby fixing the inner sleeve and the outer sleeve. When the height of the lifting leg group is adjusted by the manual assembly, the concave rod needs to be taken out first, and then inserted after adjustment.

[0028] In addition, the personnel limit display screen for displaying the personnel situation is usually fixed on the sidewall of the tunnel, which is not eye-catching and intuitive. Therefore, in this embodiment, a fixed frame 21 capable of rotating in a circumferential direction is arranged on the top of the bearing door box 1, and a display screen 22 is arranged on the fixed frame 21. The angle of the display screen can be adjusted according to the use requirement, which is convenient for personnel to view. The fixed frame is composed of a fixed plate and two fixed arms arranged on one side of the fixed plate, and the display screen is detachably mounted on the fixed arms.

[0029] The fixed frame is arranged on the top of the bearing door box. Specifically, a second motor is arranged at the top end of the bearing door box, the second motor extends out of the top of the bearing door box and is connected with a driving wheel 23, the top of the bearing door box is provided with a slewing bearing 24 engaged with the driving wheel 23, and the fixed frame 21 is installed on the top of the slewing bearing 24 and can rotate with the slewing bearing. The slewing bearing is a product of the prior art, and currently has an inner ring fixed and an outer ring rotated. The fixed frame is fixed to the outer ring of the slewing bearing, and the driving wheel is engaged with the outer ring. The second motor rotates to drive the outer ring of the slewing bearing to rotate through the driving wheel, thereby driving the fixed frame to rotate, and further driving the display screen arranged on the fixed frame to rotate.

[0030] Considering that the widths of different tunnels may be different, the folding door body 3 is provided with an adjustable extension door body 25 away from the active door body 2. The folding door body 3 is composed of two vertical pipes and a plurality of horizontal pipes arranged between the two vertical pipes. A plurality of positioning through holes 26 are formed in the top horizontal pipe and the lower horizontal pipe of the folding door body 3. The extension door body 25 is composed of a vertical pipe and a plurality of horizontal pipes arranged on one side of the vertical pipe. The horizontal rods of the extension door body slide in and out of the vertical pipe of the folding door body 3. A fixing through hole is formed in the top horizontal pipe and the lower horizontal pipe of the extension door body 25 and cooperates with the positioning through hole 26. The extension door body 25 is locked by a bolt and a nut. When the width of the extension door body is adjusted, the nut is removed and the bolt is unscrewed. The extension door body is pulled outwards or pushed inwards. When the positioning through hole is aligned with the fixing through hole, the bolt is inserted and locked by the nut.

[0031] Further, the slewing linkage mechanism 6 is a product of the prior art, which specifically includes a short rod 61 movably connected with the folding door body 3, a rigid elbow 62 movably connected with the other end of the short rod, the rigid elbow 62 including three end points not on the same straight line, one end point of the rigid elbow 62 movably connected with the short rod 61, the other end point movably connected with the active door body 2, and a pull rod 63 movably connected with the middle end point and movably connected with a protruding shaft on the fixed plate of the bearing door box.

[0032] Further, the hinge mechanism 5 includes two first hinges 51, two second hinges 52, and a hinge shaft 53. The two first hinges 51 are fixed to the upper end and the lower end of the side of the active door body away from the bearing door box, and the sleeves of the first hinges extend out of the side wall of the active door body. The two second hinges 52 are fixed to the upper end and the lower end of the side of the folding door body close to the active door body, and the sleeves of the second hinges are located between and correspond to the sleeves of the first hinges. The hinge shaft 53 is arranged in the sleeves of the first hinges and the second hinges, and the two ends of the hinge shaft are locked by limiting screws.

[0033] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications, combinations and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A rock bolting and personnel protection device, characterised in that: The utility model provides a door box, active door body, folding door body are included, one side of the door box is provided with rotatable active door body, and the active door body is driven to open and shut by first motor, and the folding door body is arranged in the side of active door body away from the door box through hinge mechanism, and the top of active door body and folding door body is provided with rotary link mechanism, and the folding door body is folded or opened under the action of rotary link mechanism with the action of active door body, and the bottom of door box is provided with lifting support group respectively in front side and rear side, and the lifting support group includes two lifting support legs, manual assembly for controlling two lifting support legs synchronous up and down.

2. A bump protection and personnel limiting device for use in a mine as claimed in claim 1, characterised in that: The upper end and the lower end of the door box are respectively provided with an upper seat and a lower seat, the bottom of the upper seat is provided with a universal bearing seat, the top of the active door body is provided with a top connecting plate, the top connecting plate is rotatably connected with the universal bearing seat through a top fixing shaft thereof, the top of the lower seat is provided with a bearing seat, the bottom of the active door body is provided with a bottom connecting plate, a fixing shaft on the bottom surface of the bottom connecting plate penetrates into the bearing seat and extends downward out of the bearing seat, a driven wheel is connected to the bearing seat and the lower seat, the first motor is arranged in the door box and has a driving wheel connected to the shaft end thereof, and a belt is wound around the driving wheel and the driven wheel.

3. A bump protection and personnel restraint device for use in a mine as claimed in claim 2, characterised in that: The outer side of the lower seat is provided with a protective shell for protecting the driven wheel, and the protective shell cooperates with the lower seat to form a closed space.

4. A bashing and personnel limiting device for use in a mine as claimed in claim 1, characterised in that: The lifting support leg comprises an outer frame sleeve fixed to the bottom of the door box and an inner frame sleeve slidably arranged in the inner frame sleeve, a circle of mounting plates is arranged on the bottom of the inner frame sleeve, a moving nut is fixed to the inner end of the inner frame sleeve, a lead screw is threadedly connected to the moving nut, and the lower end of the lead screw is located in the inner frame sleeve, the manual assembly comprises a rotating shaft and a hand lever, two L-shaped plates are arranged on the inner bottom surface of the door box, first bearings and second bearings are respectively arranged on the vertical parts and horizontal parts of the two L-shaped plates, the rotating shaft penetrates into the first bearings of the two L-shaped plates and is connected to the hand lever at one end, first bevel gears are arranged on the rotating shaft close to the second bearings, the upper end of the lead screw penetrates through the door box and is fixed in the second bearings, a second bevel gear is connected to the lead screw extending out of the second bearings, and the second bevel gear cooperates with the first bevel gears.

5. A surge protection and personnel barrier device for use in a mine as claimed in claim 4 wherein: A plurality of corresponding through holes are formed in the front and rear sides of the inner frame sleeve, the through holes are located on both sides of the lead screw, locking holes are formed in the front and rear sides of the outer frame sleeve and cooperate with the through holes, and the two rod bodies of the concave rod pass through the locking holes on one side of the outer frame sleeve, the through holes in the front and rear sides of the inner frame sleeve and the locking holes on the other side of the outer frame sleeve in sequence, so that the inner frame sleeve and the outer frame sleeve are fixed.

6. A surge protection and personnel barrier device for use in a mine as defined in claim 1, wherein: A fixed frame capable of rotating in a circumferential direction is arranged on the top of the door box, and a display screen is arranged on the fixed frame.

7. A surge protection and access control device for a mine as claimed in claim 6 wherein: A second motor is arranged at the inner top end of the door box, the second motor extends out of the top of the door box and is connected to a driving wheel, a rotary support is arranged on the top of the door box and engages with the driving wheel, the fixed frame is arranged on the top of the rotary support and can rotate with the rotary support.

8. A bashing and personnel limiting device for use in a mine as claimed in claim 1 characterised in that: The folding door body is provided with adjustable extension door body away from one side of the main door body, the folding door body is composed of two vertical pipes and several horizontal pipes arranged between the two vertical pipes, the top horizontal pipe and the lower horizontal pipe of the folding door body are provided with several positioning through holes penetrating the upper and lower sides; the extension door body is composed of a vertical pipe and several horizontal pipes arranged on one side of the vertical pipe, the horizontal rod of the extension door body is slidably arranged in the vertical pipe of the folding door body, and the top horizontal pipe and the lower horizontal pipe of the extension door body are provided with fixed through holes matched with the positioning through holes and locked by bolts and nuts.

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