CN117027924B - Underground safety refuge chamber - Google Patents
Underground safety refuge chamber Download PDFInfo
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- CN117027924B CN117027924B CN202311306033.4A CN202311306033A CN117027924B CN 117027924 B CN117027924 B CN 117027924B CN 202311306033 A CN202311306033 A CN 202311306033A CN 117027924 B CN117027924 B CN 117027924B
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- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 230000008093 supporting effect Effects 0.000 abstract description 21
- 239000003245 coal Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 7
- 239000011435 rock Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways
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- Health & Medical Sciences (AREA)
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Abstract
The application discloses an underground safety refuge chamber, which relates to the technical field of underground refuge of coal mines and comprises a chamber body, wherein a bottom box is arranged in the chamber body, fixing plates are fixedly arranged at the left corner and the right corner of the bottom box, rectangular sliding plates are arranged on the fixing plates, a pair of fixing blocks are fixedly arranged in the middle part of the bottom box, double-sided racks are arranged on the top surfaces of the fixing blocks, and the double-sided racks are connected with the pair of rectangular sliding plates on the corresponding side through a swing arm mechanism; the left side and the right side of the bottom box are provided with a pair of side boxes, the bottoms of the side boxes are fixedly provided with connecting plates, and the connecting plates are fixedly connected with the outer ends of a pair of rectangular sliding plates at the corresponding sides; an inner box is clamped in the side box, a lifting plate is clamped in the inner box, and the side box is connected with the lifting plate through a linkage mechanism; a U-shaped plate is fixedly arranged at the top end of the lifting plate, and a pair of arc-shaped supporting plates are arranged in the opening of the U-shaped plate. The application is suitable for the inner support operation of the chamber body with different sizes, and enhances the stability of the inner support of the chamber body.
Description
Technical Field
The application relates to the technical field of underground refuge of coal mines, in particular to an underground safety refuge chamber.
Background
Modern coal mine safety technology requires that a mine be provided with an underground safety refuge chamber so as to ensure that underground personnel can hide into the refuge chamber when underground accidents happen.
However, as the pushing and mining work of surrounding mining surfaces is finished, coal and rock in the later goaf gradually collapse and subside, the pressure conduction of the area where the refuge chamber is located is enhanced, the surrounding rock around the chamber is stressed and the risk of secondary collapse of the chamber exists; in order to solve the problem, the prior art adopts a mode of erecting an interlayer frame on two sides of the chamber to support, however, when the chamber contracts and deforms, the interlayer frame loses support to cause instability, and the supporting effect is poor.
Based on this, the prior art does need improvement.
Disclosure of Invention
The application aims to solve the defect that in the prior art, a chamber body is affected by goaf coal rock settlement and has a defect of a small effective protection support structure, and provides an underground safe refuge chamber.
In order to solve the problems existing in the prior art, the application adopts the following technical scheme:
the underground safety refuge chamber comprises a chamber body, wherein a plurality of bottom boxes which are distributed at equal intervals are arranged in the chamber body, the bottom boxes are rectangular box shapes with left and right sides open, fixing plates are fixedly arranged at the left and right corners of the bottom boxes, rectangular sliding holes are formed in each fixing plate, a rectangular sliding plate which penetrates through the rectangular sliding holes in a sliding mode is inserted into each fixing plate, a pair of fixing blocks are fixedly arranged in the middle of the bottom boxes, double-sided racks which penetrate through the fixing blocks in a sliding mode are arranged on the top faces of the fixing blocks, and each double-sided rack is connected with a pair of rectangular sliding plates on the corresponding side through a swing arm mechanism;
a pair of side boxes which are vertically and symmetrically distributed are arranged on the left side and the right side of the bottom box, the side boxes are rectangular boxes with top surfaces and opposite surfaces being open, the bottom of the inner side surface of each side box is fixedly provided with a connecting plate, and each connecting plate is fixedly connected with the outer end parts of a pair of rectangular sliding plates on the corresponding side;
the inner part of each side box is clamped with an inner box which is connected with the side box in a vertical sliding way, the inner box is in a rectangular box shape with an open top surface, the inner part of each inner box is clamped with a lifting plate which is connected with the side box in a vertical sliding way, and the side boxes are connected with the lifting plates through a linkage mechanism;
the top end of each lifting plate is fixedly provided with a U-shaped plate, a pair of arc-shaped supporting plates which are symmetrically distributed are arranged in openings of the U-shaped plates, and the outer arc surfaces of the pair of arc-shaped supporting plates are matched and abutted against the inner top wall of the chamber body.
Preferably, the swing arm mechanism comprises a first swing arm and a second swing arm, the front side and the rear side of the fixed block are provided with symmetrically distributed first swing arms which are arranged in a V shape, the inner end parts of a pair of the first swing arms are respectively inserted with a first pin shaft which vertically penetrates through and is fixedly connected, and the bottom end part of each first pin shaft is rotationally connected with the inner bottom wall of the bottom box;
the outer end part of the first swing arm is provided with a first U-shaped notch, the inner end part of the rectangular sliding plate is provided with a second U-shaped notch, and a second swing arm with two ends being movably hinged is arranged between the first U-shaped notch and the second U-shaped notch on the corresponding side.
Preferably, a pair of rectangular through holes are formed in the front side wall and the rear side wall of the bottom box, an elliptical hole is formed in the middle of the double-sided rack, an elliptical sliding block in sliding connection is clamped in the elliptical hole, and the bottom end of the elliptical sliding block is fixedly connected with the middle of the top surface of the fixed block;
the inner end parts of the pair of first swing arms are fixedly provided with notch gears, and the front side and the rear side of each double-sided rack are respectively connected with the pair of notch gears in a meshed mode.
Preferably, a pair of T-shaped connecting blocks are fixedly arranged at the inner ends of the pair of double-sided racks, and a pair of L-shaped racks which are distributed in a staggered manner are fixedly arranged between the inner ends of the pair of T-shaped connecting blocks;
the circular through hole is formed in the middle of the bottom wall in the bottom box, the servo motor with the upward output end is fixedly arranged in the circular through hole, the driving gear which is concentrically fixedly connected is sleeved at the end part of the motor shaft of the servo motor, the driving gear is positioned between a pair of L-shaped racks, and the driving gear is meshed and connected with the pair of L-shaped racks.
Preferably, the linkage mechanism comprises linkage belts, a pair of vertically symmetrically distributed linkage belts are arranged on the front side and the rear side of the outer side of the inner box, linkage belt pulleys connected in a synchronous transmission mode are sleeved at the upper end portion and the lower end portion of each linkage belt, a linkage shaft concentrically penetrating through and fixedly connected is inserted in the middle of each linkage belt pulley, and the inner end portion of each linkage shaft is inserted in the outer side wall of the inner box and connected in a rotating mode.
Preferably, the front side and the rear side of the opening of the outer side face of the side box are fixedly provided with symmetrically distributed fixed racks, the middle parts of a pair of linkage shafts positioned below are respectively sleeved with driven gears which are concentrically fixedly connected, and each driven gear is meshed and connected with the fixed rack on the corresponding side.
Preferably, a pair of oval through holes which are vertically and symmetrically distributed are formed in the outer side face of the inner box, each oval through hole is internally clamped with an L-shaped sliding block which is in sliding connection, the inner end portion of each L-shaped sliding block is fixedly connected with the bottom of the outer side wall of the corresponding lifting plate, and the outer end portion of each L-shaped sliding block is fixedly connected with a linkage belt on one side.
Preferably, a pair of hydraulic telescopic cylinders which are symmetrically distributed in the front and the rear are fixedly arranged on the front and the rear side walls of the side box, hydraulic connecting blocks are fixedly arranged at the end parts of hydraulic telescopic rods of each hydraulic telescopic cylinder, and each hydraulic connecting block is fixedly connected with the top of the inner box;
the U-shaped plate is characterized in that a plurality of equally distributed threaded holes are formed in the bottoms of the U-shaped plate and the arc-shaped supporting plate, and a plurality of bolts connected with the threaded holes are inserted into the outer side wall of the U-shaped plate.
Preferably, a plurality of connection slide holes are formed in the top of each arc-shaped supporting plate, a plurality of equidistant connecting rods are arranged between the tops of each arc-shaped supporting plate, each connecting rod is inserted into the corresponding connection slide hole in a sliding mode, a baffle ring fixedly connected with each connecting rod is sleeved in the middle of each connecting rod, and buffer springs fixedly connected with the baffle ring are sleeved on the left section and the right section of each connecting rod.
Compared with the prior art, the application has the beneficial effects that:
1. according to the application, after the wall of the chamber body is extruded, the pair of first swing arms are relatively folded through the cooperation of the swing arm mechanisms, the pair of second swing arms are driven to relatively fold, the side box is driven to outwards translate through the connecting plate and approach the inner side wall of the chamber body, the relative supporting width can be adjusted according to the shrinkage and deformation of the chamber body, the phenomenon of secondary collapse of the chamber body is avoided, and the safety of personnel and articles in the chamber body is ensured;
2. according to the application, through the cooperation of the linkage mechanism, the inner box slides upwards along the side box, and the lifting plate further slides upwards along the inner box, so that the U-shaped plate and the arc-shaped supporting plates are driven to rise upwards synchronously, a pair of arc-shaped supporting plates are propped against two sides of the inner top wall of the chamber body, and the inner wall of the chamber body is convenient and quick to install;
in summary, the application solves the problem that the effective protection support structure is lacking due to the influence of goaf coal rock settlement in the chamber body, is suitable for the chamber body internal support operation with different sizes, and enhances the stability of the chamber body internal support.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of the present application;
FIG. 2 is a schematic view of the connection of the bottom case to a pair of side cases and a pair of arcuate support plates in accordance with the present application;
FIG. 3 is an exploded view of FIG. 2 in accordance with the present application;
FIG. 4 is a schematic view of the connection of the bottom case to a pair of connection plates according to the present application;
FIG. 5 is a schematic top-side open view of FIG. 4 in accordance with the present application;
FIG. 6 is an exploded view of FIG. 5 in accordance with the present application;
FIG. 7 is an exploded view of a pair of arcuate support plates of the present application;
FIG. 8 is a schematic diagram of the connection of the side tanks, inner tanks and lifter plate structure of the present application;
FIG. 9 is an exploded view of FIG. 8 in accordance with the present application;
number in the figure: 1. a bottom box; 11. a fixing plate; 12. a rectangular slide plate; 13. a connecting plate; 14. a fixed block; 15. double-sided racks; 16. a first swing arm; 17. a second swing arm; 18. a notch gear; 19. an elliptical slider; 2. a side case; 21. an inner box; 22. a lifting plate; 23. a hydraulic telescopic cylinder; 24. a fixed rack; 25. a linkage shaft; 26. a linkage belt; 27. a driven gear; 28. an L-shaped sliding block; 3. a chamber body; 31. a U-shaped plate; 32. an arc-shaped supporting plate; 33. a connecting rod; 34. a servo motor; 35. a drive gear; 36. an L-shaped rack; 37. t-shaped connecting blocks.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments.
Embodiment one: the embodiment provides an underground safe refuge chamber, referring to fig. 1-9, specifically, the underground safe refuge chamber comprises a chamber body 3, a plurality of bottom boxes 1 distributed at equal intervals are arranged in the chamber body 3, the bottom boxes 1 are rectangular box shapes with left and right sides open, fixing plates 11 are fixedly arranged at left and right corners of the bottom boxes 1, rectangular sliding holes are formed in each fixing plate 11, a rectangular sliding plate 12 penetrating through sliding is inserted into each rectangular sliding hole, a pair of fixing blocks 14 are fixedly arranged in the middle of the inside of the bottom box 1, double-sided racks 15 penetrating through sliding transversely are arranged on the top surface of each fixing block 14, and each double-sided rack 15 is connected with a pair of rectangular sliding plates 12 on the corresponding side through a swing arm mechanism;
the left side and the right side of the bottom box 1 are provided with a pair of side boxes 2 which are vertically and symmetrically distributed, the side boxes 2 are rectangular boxes with open top surfaces and opposite sides, the bottom of the inner side surface of each side box 2 is fixedly provided with a connecting plate 13, and each connecting plate 13 is fixedly connected with the outer end parts of a pair of rectangular sliding plates 12 on the corresponding side;
the inner box 21 which is connected in a vertically sliding way is clamped in each side box 2, the inner box 21 is in a rectangular box shape with an open top surface, the lifting plate 22 which is connected in a vertically sliding way is clamped in each inner box 21, and the side boxes 2 are connected with the lifting plate 22 through a linkage mechanism;
the top end of each lifting plate 22 is fixedly provided with a U-shaped plate 31, a pair of symmetrically distributed arc-shaped supporting plates 32 are arranged in the openings of the U-shaped plates 31, and the outer cambered surfaces of the pair of arc-shaped supporting plates 32 are matched and abutted against the inner top wall of the chamber body 3.
In a specific implementation process, as shown in fig. 5 and 6, the swing arm mechanism comprises a first swing arm 16 and a second swing arm 17, the front side and the rear side of the fixed block 14 are provided with symmetrically distributed first swing arms 16 which are arranged in a V shape, the inner end parts of the pair of first swing arms 16 are respectively inserted with a first pin shaft which vertically penetrates through and fixedly connected, and the bottom end part of each first pin shaft is rotationally connected with the inner bottom wall of the bottom box 1;
the outer end part of the first swing arm 16 is provided with a first U-shaped notch, the inner end part of the rectangular slide plate 12 is provided with a second U-shaped notch, and a second swing arm 17 with two ends being movably hinged is arranged between the first U-shaped notch and the second U-shaped notch on the corresponding side;
the pair of first swing arms 16 are folded relatively, the pair of second swing arms 17 are driven to be folded relatively, the rectangular sliding plate 12 is driven to slide outwards along the rectangular sliding hole, and the side box 2 is driven to translate outwards and approach the inner side wall of the chamber body 3 through the connecting plate 13.
In the specific implementation process, as shown in fig. 5 and 6, a pair of rectangular through holes are formed in the front and rear side walls of the bottom case 1, an elliptical smooth hole is formed in the middle of the double-sided rack 15, an elliptical slide block 19 in sliding connection is clamped in the elliptical slide hole, and the bottom end of the elliptical slide block 19 is fixedly connected with the middle of the top surface of the fixed block 14;
the inner end parts of the pair of first swing arms 16 are fixedly provided with notch gears 18, and the front side and the rear side of each double-sided rack 15 are respectively connected with the pair of notch gears 18 in a meshed manner;
when the double-sided rack 15 translates inwards along the elliptical slider 19, the double-sided rack 15 is meshed to drive the pair of notch gears 18 to rotate relatively, so that the pair of first swing arms 16 are folded relatively.
In the specific implementation process, as shown in fig. 5 and 6, a pair of T-shaped connecting blocks 37 are fixedly arranged at the inner ends of a pair of double-sided racks 15, and a pair of L-shaped racks 36 which are distributed in a staggered manner are fixedly arranged between the inner ends of the pair of T-shaped connecting blocks 37;
a circular through hole is formed in the middle of the inner bottom wall of the bottom box 1, a servo motor 34 with an upward output end is fixedly arranged in the circular through hole, a driving gear 35 which is concentrically fixedly connected is sleeved at the end part of a motor shaft of the servo motor 34, the driving gear 35 is positioned between a pair of L-shaped racks 36, and the driving gear 35 is in meshed connection with the pair of L-shaped racks 36;
the motor shaft of the servo motor 34 drives the driving gear 35 to synchronously rotate, the driving gear 35 is meshed to drive a pair of L-shaped racks 36 to carry out staggered relative translation, and then the T-shaped connecting block 37 drives the double-sided racks 15 to inwards translate along the elliptical sliding block 19.
The description is as follows: in this embodiment, the bottoms of the U-shaped plate 31 and the arc-shaped support plate 32 are provided with a plurality of equally spaced threaded holes, and the outer side wall of the U-shaped plate 31 is inserted with a plurality of bolts connected with the threaded holes; the arc-shaped supporting plate 32 and the U-shaped plate 31 can be detached and replaced through bolts;
a plurality of connecting sliding holes are formed in the top of each arc-shaped supporting plate 32, a plurality of connecting rods 33 which are distributed at equal intervals are arranged between the tops of a pair of arc-shaped supporting plates 32, two end parts of each connecting rod 33 are inserted in the corresponding connecting sliding holes in a sliding mode, baffle rings which are fixedly connected with each other in a concentric mode are sleeved at the middle of each connecting rod 33, and buffer springs which are fixedly connected with the baffle rings are sleeved on the left section and the right section of each connecting rod 33;
when the pair of side cases 2 translate outwards, the pair of arc-shaped support plates 32 can be synchronously driven to translate away from each other, and the connecting rod 33 is driven to slide along the connecting sliding hole.
Embodiment two: the present embodiment further includes, on the basis of the first embodiment:
in the concrete implementation process, as shown in fig. 8 and 9, a pair of hydraulic telescopic cylinders 23 which are symmetrically distributed in front and back are fixedly arranged on the front and back side walls of the side case 2, hydraulic connecting blocks are fixedly arranged at the end parts of hydraulic telescopic rods of each hydraulic telescopic cylinder 23, and each hydraulic connecting block is fixedly connected with the top of the inner case 21; the telescopic rod of the hydraulic telescopic cylinder 23 slowly stretches, and the inner box 21 is driven by the hydraulic connecting block to slowly slide upwards along the side box 2;
the linkage mechanism comprises linkage belts 26, a pair of vertically symmetrically distributed linkage belts 26 are arranged on the front side and the rear side of the outer side of the inner box 21, linkage belt pulleys in synchronous transmission connection are sleeved on the upper end and the lower end of each linkage belt 26, a linkage shaft 25 concentrically penetrating and fixedly connected is inserted in the middle of each linkage belt pulley, and the inner end of each linkage shaft 25 is inserted in the outer side wall of the inner box 21 and is connected in a rotating manner;
when the driven gear 27 rotates, the driven gear 27 drives the linkage shaft 25, the linkage pulley, and the linkage belt 26 to synchronously rotate.
Embodiment III: the second embodiment further includes, on the basis of the second embodiment:
in the specific implementation process, as shown in fig. 8 and 9, two sides of the side case 2, which are front and back, at the opening of the outer side face are fixedly provided with symmetrically distributed fixed racks 24, the middle parts of a pair of linkage shafts 25 positioned below are respectively sleeved with driven gears 27 which are concentrically fixedly connected, and each driven gear 27 is in meshed connection with the fixed rack 24 at the corresponding side; when the inner box 21 is lifted, the driven gear 27 is driven to engage and rotate along the fixed rack 24.
Embodiment four: the second embodiment further includes, on the basis of the second embodiment:
in the specific implementation process, as shown in fig. 8 and 9, a pair of vertically symmetrically distributed elliptical through holes are formed in the outer side surface of the inner box 21, the inside of each elliptical through hole is clamped with an L-shaped sliding block 28 in sliding connection, the inner end part of each L-shaped sliding block 28 is fixedly connected with the bottom of the outer side wall of the corresponding lifting plate 22, and the outer end part of each L-shaped sliding block 28 is fixedly connected with a linkage belt 26 on the corresponding side;
when the linkage belt 26 rotates, the L-shaped sliding blocks 28 are driven to slide upwards along the elliptical through holes, the lifting plate 22 is driven to slide upwards further along the inner box 21, the U-shaped plates 31 and the arc-shaped supporting plates 32 are driven to rise upwards synchronously, and the pair of arc-shaped supporting plates 32 are propped against two sides of the inner top wall of the chamber body 3.
Fifth embodiment: specifically, the working principle and the operation method of the application are as follows:
firstly, centering the bottom box 1 at a proper position according to the deformation condition of surrounding rock in the chamber body 3, starting a servo motor 34, driving a driving gear 35 to synchronously rotate by a motor shaft of the servo motor 34, driving a pair of L-shaped racks 36 to carry out staggered relative translation by meshing of the driving gear 35, and driving a double-sided rack 15 to carry out inward translation along an elliptical slider 19 by a T-shaped connecting block 37;
step two, when the double-sided rack 15 translates inwards, the double-sided rack 15 is meshed to drive a pair of notch gears 18 to rotate relatively, so that a pair of first swing arms 16 are folded relatively, a pair of second swing arms 17 are further driven to fold relatively, and further the rectangular sliding plate 12 is driven to slide outwards along the rectangular sliding hole, and then the side box 2 is driven to translate outwards and approach the inner side wall of the chamber body 3 through the connecting plate 13;
step three, two pairs of hydraulic telescopic cylinders 23 are synchronously started, telescopic rods of the hydraulic telescopic cylinders 23 slowly extend, the inner box 21 is driven by the hydraulic connecting blocks to slowly slide upwards along the side boxes 2, the driven gear 27 is driven to engage and rotate along the fixed racks 24, and the driven gear 27 drives the linkage shaft 25, the linkage belt pulley and the linkage belt 26 to synchronously rotate;
and step four, when the linkage belt 26 rotates, the L-shaped sliding blocks 28 are driven to slide upwards along the elliptical through holes, the lifting plates 22 are driven to slide upwards further along the inner box 21, the U-shaped plates 31 and the arc-shaped support plates 32 are driven to rise upwards synchronously, and the pair of arc-shaped support plates 32 are propped against two sides of the inner top wall of the chamber body 3.
The application solves the problem that the chamber body lacks a protective supporting structure under the influence of goaf coal rock settlement, is suitable for the chamber body internal supporting operation with different sizes, and enhances the stability of the chamber body internal supporting.
The foregoing is only a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art, who is within the scope of the present application, should make equivalent substitutions or modifications according to the technical scheme of the present application and the inventive concept thereof, and should be covered by the scope of the present application.
Claims (8)
1. The utility model provides a safe refuge chamber in pit, includes chamber body (3), its characterized in that: a plurality of bottom boxes (1) which are distributed at equal intervals are arranged in the chamber body (3), the bottom boxes (1) are rectangular boxes with left and right sides open, fixing plates (11) are fixedly arranged at the left and right corners of the bottom boxes (1), rectangular sliding holes are formed in each fixing plate (11), rectangular sliding plates (12) which are penetrated in a sliding mode are inserted into the rectangular sliding holes, a pair of fixing blocks (14) are fixedly arranged in the middle of the bottom boxes (1), double-sided racks (15) which are penetrated in a sliding mode are arranged on the top surfaces of the fixing blocks (14), and each double-sided rack (15) is connected with a pair of rectangular sliding plates (12) on the corresponding side through a swing arm mechanism;
a pair of side boxes (2) which are vertically and symmetrically distributed are arranged on the left side and the right side of the bottom box (1), the side boxes (2) are rectangular boxes with open top surfaces and opposite surfaces, a connecting plate (13) is fixedly arranged at the bottom of the inner side surface of each side box (2), and each connecting plate (13) is fixedly connected with the outer end parts of a pair of rectangular sliding plates (12) on the corresponding side;
an inner box (21) which is connected in a vertically sliding way is clamped in each side box (2), the inner box (21) is in a rectangular box shape with an open top surface, a lifting plate (22) which is connected in a vertically sliding way is clamped in each inner box (21), and the side boxes (2) are connected with the lifting plate (22) through a linkage mechanism;
the top end of each lifting plate (22) is fixedly provided with a U-shaped plate (31), a pair of symmetrically distributed arc-shaped support plates (32) are arranged in the openings of the U-shaped plates (31), and the outer cambered surfaces of the pair of arc-shaped support plates (32) are matched and abutted against the inner top wall of the chamber body (3);
the swing arm mechanism comprises a first swing arm (16) and a second swing arm (17), the front side and the rear side of the fixed block (14) are provided with symmetrically distributed first swing arms (16) which are arranged in a V shape, the inner end parts of a pair of the first swing arms (16) are respectively inserted with a first pin shaft which vertically penetrates through and fixedly connected, and the bottom end part of each first pin shaft is rotationally connected with the inner bottom wall of the bottom box (1);
the outer end part of the first swing arm (16) is provided with a first U-shaped notch, the inner end part of the rectangular sliding plate (12) is provided with a second U-shaped notch, and a second swing arm (17) with two ends being movably hinged is arranged between the first U-shaped notch and the second U-shaped notch on the corresponding side.
2. The underground safety refuge chamber of claim 1, wherein: a pair of rectangular through holes are formed in the front side wall and the rear side wall of the bottom box (1), an elliptical hole is formed in the middle of the double-sided rack (15), an elliptical sliding block (19) in sliding connection is clamped in the elliptical hole, and the bottom end part of the elliptical sliding block (19) is fixedly connected with the middle of the top surface of the fixed block (14);
the inner ends of the pair of first swing arms (16) are fixedly provided with notch gears (18), and the front side and the rear side of each double-sided rack (15) are respectively connected with the pair of notch gears (18) in a meshed mode.
3. The underground safety refuge chamber of claim 2, wherein: a pair of T-shaped connecting blocks (37) are fixedly arranged at the inner ends of the pair of double-sided racks (15), and a pair of L-shaped racks (36) which are distributed in a staggered manner are fixedly arranged between the inner ends of the pair of T-shaped connecting blocks (37);
the novel automatic lifting device is characterized in that a circular through hole is formed in the middle of the inner bottom wall of the bottom box (1), a servo motor (34) with an upward output end is fixedly arranged in the circular through hole, a driving gear (35) concentrically fixedly connected with the end part of a motor shaft of the servo motor (34) is sleeved, the driving gear (35) is located between a pair of L-shaped racks (36), and the driving gear (35) is meshed and connected with the pair of L-shaped racks (36).
4. A downhole safety refuge chamber according to claim 3, wherein: the linkage mechanism comprises linkage belts (26), a pair of vertical symmetrically-distributed linkage belts (26) are arranged on the front side and the rear side of the outer side of the inner box (21), linkage pulleys connected in a synchronous transmission mode are sleeved on the upper end portion and the lower end portion of each linkage belt (26), linkage shafts (25) concentrically penetrating through the middle portions of the linkage pulleys are inserted into the middle portions of the linkage pulleys, and the inner end portions of the linkage shafts (25) are inserted into the outer side wall of the inner box (21) and are connected in a rotating mode.
5. The underground safety refuge chamber of claim 4, wherein: fixed racks (24) which are symmetrically distributed are fixedly arranged on the front side and the rear side of an opening of the outer side face of the side box (2), driven gears (27) which are concentrically fixedly connected are sleeved at the middle parts of a pair of linkage shafts (25) positioned below, and each driven gear (27) is meshed and connected with the corresponding fixed rack (24).
6. The underground safety refuge chamber of claim 5, wherein: a pair of vertically symmetrically distributed elliptical through holes are formed in the outer side face of the inner box (21), each elliptical through hole is internally clamped with an L-shaped sliding block (28) in sliding connection, the inner end portion of each L-shaped sliding block (28) is fixedly connected with the bottom of the outer side wall of a corresponding lifting plate (22), and the outer end portion of each L-shaped sliding block (28) is fixedly connected with a linkage belt (26) on one side.
7. The underground safety refuge chamber of claim 6, wherein: a pair of hydraulic telescopic cylinders (23) which are symmetrically distributed in the front and the rear are fixedly arranged on the front and the rear side walls of the side box (2), hydraulic connecting blocks are fixedly arranged at the end parts of hydraulic telescopic rods of each hydraulic telescopic cylinder (23), and each hydraulic connecting block is fixedly connected with the top of the inner box (21);
the U-shaped plate (31) and the arc-shaped support plate (32) are provided with a plurality of equally distributed threaded holes at the bottoms, and a plurality of bolts connected with the threaded holes are inserted into the outer side wall of the U-shaped plate (31).
8. The underground safety refuge chamber of claim 7, wherein: every a plurality of connection slide holes have all been seted up at the top of arc backup pad (32), a pair of be equipped with connecting rod (33) that a plurality of equidistance distribute between the top of arc backup pad (32), every both ends portion of connecting rod (33) all slides and inserts and establish in the connection slide hole that corresponds, every the middle part of connecting rod (33) all overlaps the baffle ring that is equipped with concentric rigid coupling, every all overlap on the left and right sides two sections of connecting rod (33) be equipped with the buffer spring with the baffle ring rigid coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311306033.4A CN117027924B (en) | 2023-10-10 | 2023-10-10 | Underground safety refuge chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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