Early warning and protecting device for roof fall of coal face
The telescopic opening and closing structure and the spring-loaded structure protect the camera, solving the problem of camera damage and enabling safe roof monitoring and hazard removal operations, thus ensuring the safety and continuity of the coal mining face.
Patent Information
- Application Number
- CN202520646712.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-04-08
AI Technical Summary
In existing early warning and protection devices for roof collapse in coal mining faces, cameras are easily damaged by falling rocks from the coal face.
The system employs a telescopic opening and closing structure and a spring-loaded structure, which are used to protect the camera and handle loose rocks on the roof, respectively. The telescopic opening and closing structure uses a hydraulic cylinder and a gear and rack mechanism to extend and retract the camera, while the spring-loaded structure uses a stepper motor and a gear and rack mechanism to enable the rapid extension and retraction of a long rod to strike the loose rocks.
It effectively protects the cameras from damage and solves the problems of roof collapse and coal dust injuries during the process of checking the roof and walls to eliminate hazards, ensuring the continuity and safety of monitoring.
Smart Images
Figure CN223754135U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mine safety technical field, concretely is coal face roof fall early warning and protection device. BACKGROUND
[0002] The coal face roof fall slice help early warning protection device is advanced equipment that obtains clear, detailed image information, utilizes deep learning, computer vision and other artificial intelligence algorithms, carries out real -time analysis to the image that camera gathers, automatically identifies roof broken roof fall, slice help and so on abnormal condition, accurately judges the advanced equipment of roof fall slice help sign.
[0003] The existing coal face roof fall early warning and protection device has the following disadvantages: the camera is hit by the gangue that coal face falls in the working period of monitoring the coal face roof fall, slice help and so on abnormal condition, causes the damage of camera. UTILITY MODEL CONTENT
[0004] The utility model discloses a coal face roof fall early warning and protection device, to solve the problem that the camera is hit by the gangue that coal face falls in the working period of monitoring the coal face roof fall, slice help and so on abnormal condition, causes the damage of camera.
[0005] In order to achieve the above object, the utility model provides the following technical scheme: the coal face roof fall early warning and protection device, including main part, the bottom fixed mounting of main part has the support, and the support symmetry is provided with four groups;
[0006] The main part side is provided with telescopic open-close structure, is used for monitoring the coal face;
[0007] The main part top is provided with rebound structure, is used for handling the loose rock of coal face top;
[0008] Telescopic open-close structure includes the installation slot of being arranged in the main part side, is fixedly installed in the first hydraulic cylinder in the installation slot, and the first hydraulic cylinder end is fixedly connected with the first rack, and the first rack end is detachably installed with the camera, and the first rack both sides are connected with the first gear, and the first gear symmetry detachably installs two groups, and the first gear bottom is fixedly connected with the first connecting rod, and the first rod pin is fixedly installed in the installation slot bottom, and the first rod pin is in sequence and penetrates the first gear and first connecting rod, and the first connecting rod end is rotatably connected with the baffle, and the baffle bottom is rotatably connected with the second connecting rod, and the second connecting rod is located the outside of first connecting rod, and the second connecting rod end is rotatably connected on the main part, and the first rack bottom is provided with the limiting slot, and the limiting block that the limiting slot slides is fixedly installed in the installation slot bottom.
[0009] Preferably: the rebound structure comprises a shell detachably mounted on the top of the main body, a fixing box is fixedly arranged in the shell, a first through groove is formed in the side of the fixing box, a second through groove is formed in the top of the fixing box, a second rack is detachably mounted in the fixing box, a second gear is meshedly connected to the side of the second rack, a fixing seat is fixedly mounted on the side of the fixing box, a stepping motor is detachably mounted on the top of the fixing seat, the output shaft of the stepping motor is rotatably connected with the second gear, a first fixing block for rotatably connecting the second gear is fixedly mounted on the side of the fixing box, and the first fixing block is located above the fixing seat, a second fixing block is fixedly mounted on the top of the second rack, a third fixing block is fixedly mounted on the top of the fixing box, springs are detachably mounted on the second fixing block and the third fixing block, and a long rod is fixedly mounted on the end of the second rack.
[0010] Preferably: the first connecting rod and the baffle are rotatably connected with a second rod pin at the connecting position, the second connecting rod and the baffle are rotatably connected with a third rod pin at the connecting position, and the second connecting rod and the main body are rotatably connected with a fourth rod pin at the connecting position.
[0011] Preferably: the bracket is slidably connected with an extension rod at the bottom, and the extension rod is fixedly mounted with a pad plate at the bottom.
[0012] Preferably: the shell is fixedly mounted with a fifth fixing block at the upper end, the fifth fixing block is rotatably connected with a first hydraulic cylinder at the bottom, the first hydraulic cylinder is fixedly mounted on the main body at the bottom, the main body is fixedly provided with a fourth fixing block at the top, and the fourth fixing block is rotatably connected with the shell at the upper end and the lower end.
[0013] Preferably: the second gear and the first fixing block are rotatably connected with a fifth rod pin at the connecting position.
[0014] Preferably: the fourth fixing block and the shell are rotatably connected with a sixth rod pin at the connecting position, and the fifth fixing block and the second hydraulic cylinder are rotatably connected with a seventh rod pin at the connecting position.
[0015] Compared with the prior art, the rebound structure has the advantages that:
[0016] 1. The utility model discloses a first hydraulic cylinder is controlled slowly to move first rack when needing monitoring, and the limit slot of first rack bottom is stably slid on the fixed block fixedly installed in the bottom of installation groove, first rack drives the rotation of both sides meshing connection first gear in the process of sliding, and first gear drives the movement of first connecting rod front end, and through the first rod pin of penetrating rotation setting in first gear and first connecting rod, makes first gear and first connecting rod stable rotation, and first connecting rod drives the movement of two groups of baffle through second rod pin, and baffle drives the movement of second connecting rod front end through third rod pin, and through first connecting rod and second connecting rod, makes baffle can stably move, and the camera of first rack front end stretches out installation groove along with first rack in the process of first rack movement, and through telescopic opening and closing structure, solve the problem that camera is hit in the working period of camera and causes camera damage.
[0017] 2. When discovering that the roof has empty sound or loose rock, the operator adjusts the angle of the rebound structure through the second hydraulic cylinder, aligns the long rod front end with the loose rock, controls the stepper motor, and the stepper motor drives the counterclockwise rotation of the second gear through the output shaft, and the second gear drives the rear movement of the second rack through the gear teeth, and the second rack drives the long rod to retract into the fixed box, and in the process of the rear movement of the second rack, the spring is elongated to deform and accumulate energy, and in the process of the continuous counterclockwise rotation of the second gear, when the gear teeth part of the second gear and the second rack are disengaged, the spring drives the forward movement of the second rack through the second fixed block and the third fixed block, the second rack drives the quick extension of the long rod out of the fixed box, and the front end of the long rod hits the loose rock, completing the danger removal of the loose rock on the roof, and through the rebound structure, the problems of roof falling and floating coal injuring people in the process of knocking the roof and the wall for danger removal are solved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the whole structure schematic diagram of the coal face roof falling early warning and protection device that the utility model provides;
[0019] Figure 2 It is the telescopic opening and closing structure bottom view schematic diagram of the coal face roof falling early warning and protection device that the utility model provides;
[0020] Figure 3 It is the top view structure schematic diagram of the coal face roof falling early warning and protection device that the utility model provides;
[0021] Figure 4 It is the rebound structure schematic diagram of the coal face roof falling early warning and protection device that the utility model provides.
[0022] In the figure: 1, main body; 11, support; 12, mounting groove; 13, telescopic rod; 14, pad plate; 2, telescopic opening and closing structure; 21, baffle; 22, camera; 23, first rack; 24, first gear; 25, first hydraulic cylinder; 26, first connecting rod; 27, second connecting rod; 28, first rod pin; 29, second rod pin; 210, third rod pin; 211, fourth rod pin; 212, limiting groove; 213, limiting block; 3, shell; 31, fixed box; 32, second rack; 33, second gear; 34, stepper motor; 35, fifth rod pin; 36, first fixed block; 37, fixed seat; 38, second fixed block; 39, third fixed block; 310, spring; 311, long rod; 312, first through groove; 313, second through groove; 4, fourth fixed block; 41, sixth rod pin; 5, second hydraulic cylinder; 6, fifth fixed block; 61, seventh rod pin. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. 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 fall within the protection scope of the utility model.
[0024] Embodiment one
[0025] Please refer to Figure 1 - Figure 4 The roof falling early warning and protection device of the coal mining face in the figure comprises a main body 1, the bottom of the main body 1 is fixedly provided with supports 11, and the supports 11 are symmetrically provided with four groups;
[0026] The main body 1 is provided with a telescopic opening and closing structure 2 on the side, which is used for monitoring the coal mining face;
[0027] The telescopic opening and closing structure 2 comprises a mounting groove 12 formed in the side surface of the main body 1, a first hydraulic cylinder 25 fixedly installed in the mounting groove 12, a first rack 23 fixedly connected to the end of the first hydraulic cylinder 25, a camera 22 detachably installed at the end of the first rack 23, a first gear 24 meshingly connected to the two sides of the first rack 23, two groups of the first gears 24 being symmetrically and detachably installed, a first connecting rod 26 fixedly connected to the bottom of the first gear 24, a first rod pin 28 fixedly installed at the bottom in the mounting groove 12, the first rod pin 28 sequentially penetrating through the first gear 24 and the first connecting rod 26, a baffle 21 rotationally connected to the end of the first connecting rod 26, a second connecting rod 27 rotationally connected to the bottom of the baffle 21 and located outside the first connecting rod 26, the end of the second connecting rod 27 being rotationally connected to the main body 1, the baffle 21 being stably opened and closed through the first connecting rod 26 and the second connecting rod 27, a limiting groove 212 being formed at the bottom of the first rack 23, a limiting block 213 fixedly installed at the bottom in the mounting groove 12 and sliding with the limiting groove 212, a second rod pin 29 rotationally connected to the connecting position of the first connecting rod 26 and the baffle 21, a third rod pin 210 rotationally connected to the connecting position of the second connecting rod 27 and the baffle 21, a fourth rod pin 211 rotationally connected to the connecting position of the second connecting rod 27 and the main body 1, and a telescopic rod 13 slidingly connected to the bottom of the bracket 11, so that the device is adapted to various working heights, and a pad 14 fixedly installed at the bottom of the telescopic rod 13, so that the main body 1 is more stable in working.
[0028] The main body 1 is provided with a rebound structure at the top, which is used for processing loose rocks on the top of the coal mining face.
[0029] The rebound structure comprises a shell 3 detachably mounted on the top of the main body 1, a fixed box 31 fixedly arranged in the shell 3, a first through groove 312 formed in the side of the fixed box 31, a second through groove 313 formed in the top of the fixed box 31, a second rack 32 detachably mounted in the fixed box 31, a second gear 33 meshingly connected to the side of the second rack 32, a fixed seat 37 fixedly mounted on the side of the fixed box 31, a stepping motor 34 detachably mounted on the top of the fixed seat 37, a output shaft of the stepping motor 34 and the second gear 33 being rotatably connected, a first fixed block 36 fixedly mounted on the side of the fixed box 31 for rotatable connection of the second gear 33, the first fixed block 36 being located above the fixed seat 37, a second fixed block 38 fixedly mounted on the top of the second rack 32, a third fixed block 39 fixedly mounted on the top of the fixed box 31, springs 310 detachably mounted on the second fixed block 38 and the third fixed block 39, a long rod 311 fixedly mounted on the end of the second rack 32, a fifth fixed block 6 fixedly mounted on the upper end of the shell 3, a first hydraulic cylinder 25 rotatably connected to the bottom of the fifth fixed block 6, the first hydraulic cylinder 25 being fixedly mounted on the main body 1, a fourth fixed block 4 fixedly arranged on the top of the main body 1, the fourth fixed block 4 being rotatably connected to the lower end of the shell 3, a fifth rod pin 35 rotatably connected to the connecting position of the second gear 33 and the first fixed block 36, a sixth rod pin 41 rotatably connected to the connecting position of the fourth fixed block 4 and the shell 3, and a seventh rod pin 61 rotatably connected to the connecting position of the fifth fixed block 6 and the second hydraulic cylinder 5.
[0030] Working principle:
[0031] In use, the operator controls the first hydraulic cylinder 25 to slowly push the first rack 23 forward, the limiting groove 212 at the bottom of the first rack 23 stably slides forward on the limiting block 213 fixedly installed at the bottom in the mounting groove 12, in the process of sliding forward, the first rack 23 drives the first gear 24 meshedly connected on both sides to rotate, the first gear 24 drives the front end of the first connecting rod 26 to move away, the first gear 24 and the first connecting rod 26 stably rotate through the first rod pin 28 penetratingly and rotationally arranged in the first gear 24 and the first connecting rod 26, the first connecting rod 26 drives the two groups of baffle plates 21 to move away through the second rod pin 29, the baffle plates 21 drive the front end of the second connecting rod 27 to move away through the third rod pin 210, the baffle plates 21 stably realize away movement through the first connecting rod 26 and the second connecting rod 27, in the process of the forward movement of the first rack 23, the baffle plates 21 simultaneously open to both sides, the camera 22 at the front end of the first rack 23 stretches out of the mounting groove 12 with the first rack 23, the operator monitors the treatment condition of the coal mining face roof loose rock and whether the mine environment has roof fall accident through the camera 22, after the monitoring is completed, the operator controls the first hydraulic cylinder 25 to slowly pull the first rack 23 backward, in the process of sliding backward, the first rack 23 drives the first gear 24 meshedly connected on both sides to rotate in the opposite direction, the first gear 24 drives the front end of the first connecting rod 26 to move toward each other, the first connecting rod 26 drives the two groups of baffle plates 21 to move toward each other through the second rod pin 29, the baffle plates 21 drive the front end of the second connecting rod 27 to move toward each other through the third rod pin 210, in the process of the first rack 23 driving the camera 22 to retract into the mounting groove 12, the baffle plates 21 simultaneously fold inward and close, the camera 22 retraction protection is completed, through the telescopic opening and closing structure, the problem that the camera 22 is easily hit by the coal mine working face caving gangue during work and causes the camera 22 to be damaged is solved.
[0032] When the operator finds loose rocks or empty sound in the roof, the operator adjusts the angle of the rebound structure through the second hydraulic cylinder 5, so that the front end of the long rod 311 is aligned with the loose rocks, the operator controls the step motor 34, the step motor 34 drives the second gear 33 to rotate counterclockwise through the output shaft, the second gear 33 drives the second rack 32 to move backward through the gear teeth, the second rack 32 drives the long rod 311 to retract into the fixed box 31, in the process of the backward movement of the second rack 32, the spring 310 is elongated and deformed to accumulate energy, in the process of the continuous counterclockwise rotation of the second gear 33, when the gear teeth of the second gear 33 and the second rack 32 disengage, the spring 310 drives the second rack 32 to move forward through the second fixed block 38 and the third fixed block 39, the second rack 32 drives the long rod 311 to quickly extend out of the fixed box 31, the front end of the long rod 311 hits the loose rocks, in the process of the continuous work of the step motor 34, the rebound structure continuously reciprocates to complete the danger removal of the loose rocks in the roof, through the rebound structure, the problems of roof falling and floating coal injuring people in the process of knocking the roof and the wall to remove the danger are solved.
[0033] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0034] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and deformations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A roof falling early warning and protection device for a coal mining face, comprising a main body (1), characterized in that: The bottom of the main body (1) is fixedly provided with a support (11), and the support (11) is symmetrically provided with four groups; The side of the main body (1) is provided with a telescopic opening and closing structure (2) for monitoring the coal mining face; The top of the main body (1) is provided with a rebound structure for processing loose rocks on the top of the coal mining face; The telescopic opening and closing structure (2) comprises a mounting groove (12) formed in the side of the main body (1), a first hydraulic cylinder (25) fixedly installed in the mounting groove (12), a first rack (23) fixedly connected to the end of the first hydraulic cylinder (25), a camera (22) detachably installed at the end of the first rack (23), a first gear (24) meshingly connected to the two sides of the first rack (23), two groups of the first gears (24) being symmetrically and detachably installed, a first connecting rod (26) fixedly connected to the bottom of the first gear (24), a first rod pin (28) fixedly installed at the bottom of the mounting groove (12), the first rod pin (28) sequentially penetrating through the first gear (24) and the first connecting rod (26), a baffle (21) rotationally connected to the end of the first connecting rod (26), a second connecting rod (27) rotationally connected to the bottom of the baffle (21) and located outside the first connecting rod (26), and the end of the second connecting rod (27) being rotationally connected to the main body (1), a limiting groove (212) formed in the bottom of the first rack (23), and a limiting block (213) fixedly installed in the bottom of the mounting groove (12) and sliding with the limiting groove (212).
2. The coal mining face roof falling early warning and protection device according to claim 1, characterized in that: The rebound structure comprises an outer shell (3) detachably installed on the top of the main body (1), a fixed box (31) fixedly arranged in the outer shell (3), a first through groove (312) formed in the side of the fixed box (31), a second through groove (313) formed in the top of the fixed box (31), a second rack (32) detachably installed in the fixed box (31), a second gear (33) meshingly connected to the side of the second rack (32), a fixed seat (37) fixedly installed on the side of the fixed box (31), a stepping motor (34) detachably installed on the top of the fixed seat (37), the output shaft of the stepping motor (34) being rotationally connected with the second gear (33), a first fixed block (36) fixedly installed on the side of the fixed box (31) and rotationally connected with the second gear (33), the first fixed block (36) being located above the fixed seat (37), a second fixed block (38) fixedly installed on the top of the second rack (32), a third fixed block (39) fixedly installed on the top of the fixed box (31), a spring (310) detachably connected between the second fixed block (38) and the third fixed block (39), and a long rod (311) fixedly installed on the end of the second rack (32).
3. The coal mining face roof falling early warning and protection device according to claim 1, characterized in that: A second rod pin (29) is rotationally connected at the connection between the first connecting rod (26) and the baffle (21), a third rod pin (210) is rotationally connected at the connection between the second connecting rod (27) and the baffle (21), and a fourth rod pin (211) is rotationally connected at the connection between the second connecting rod (27) and the main body (1).
4. The coal mining face roof falling early warning and protection device according to claim 1, characterized in that: The support (11) bottom sliding connection has telescopic link (13), telescopic link (13) bottom fixed mounting has a backing plate (14).
5. The coal face roof falling early warning and protection device according to claim 2, characterized in that: The fifth fixed block (6) is fixedly installed on the upper end of the shell (3), the first hydraulic cylinder (25) is rotatably connected to the bottom of the fifth fixed block (6), the bottom of the first hydraulic cylinder (25) is fixedly installed on the main body (1), the fourth fixed block (4) is fixedly arranged on the top of the main body (1), and the lower end of the shell (3) is rotatably connected to the upper end of the fourth fixed block (4).
6. The coal face roof falling early warning and protection device according to claim 2, characterized in that: The fifth rod pin (35) is rotatably connected to the connection between the second gear (33) and the first fixed block (36).
7. The coal face roof falling early warning and protection device according to claim 5, characterized in that: The sixth rod pin (41) is rotatably connected to the connection between the fourth fixed block (4) and the shell (3), and the seventh rod pin (61) is rotatably connected to the connection between the fifth fixed block (6) and the second hydraulic cylinder (5).