Adjustable coal mine well ventilation device

Abstract

The utility model relates to the technical field of coal mine wells, in particular to an adjustable ventilation device for a coal mine well, which is characterized in that a fixed air guide frame is fixedly arranged in a ventilation frame, a movable air guide frame is movably arranged on the rear side of the fixed air guide frame in the ventilation frame, and a threaded adjusting rod is rotatably inserted at the bottom of the ventilation frame through a bearing; movable strips are fixedly arranged on the left side and the right side of the movable air guide frame, the upper end of the threaded adjusting rod is rotatably inserted into the movable air guide frame through threads, the motor is fixedly arranged in the right side wall of the ventilation frame, a sliding block is slidably arranged in a sliding groove, and a first two-way lead screw is rotatably connected into the lower sliding groove through a bearing; an output shaft of the motor is connected with one end of the first bidirectional lead screw, the moving rod is fixedly arranged between the two sliding blocks, the air speed adjusting process is simple and rapid, the ventilation position can be cleaned, and the situation that the ventilation effect is affected due to the fact that a large amount of dust is accumulated at the ventilation position in the long-term use process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine technology field, concretely relates to adjustable coal mine ventilation device. BACKGROUND

[0002] The coal mine environment is complex, and there are flammable and explosive gases such as gas and coal dust, and adverse conditions such as high temperature and high humidity, and a good ventilation system is the key link to ensure the safety production of coal mine,

[0003] A coal mine ventilation adjusting device is disclosed in a Chinese patent with publication number CN220059637U, which includes a ventilation cylinder arranged along the length direction of the underground roadway of the coal mine, a fan arranged in the ventilation cylinder, the ventilation cylinder is open at both ends, a fixing ring is detachably connected at both ends of the ventilation cylinder, a fixing disc is arranged at the center of each fixing ring, a plurality of wind baffles and ventilation screens are alternately arranged on the outer ring of each fixing disc in the circumferential direction, the free end of each wind baffle and each ventilation screen is fixedly connected with the corresponding fixing ring, the size of the overlapping channel of the ventilation screen and the ventilation opening can be changed to adjust the wind speed, but during the adjustment process, multiple limiting nuts need to be screwed one by one, the adjustment process is relatively cumbersome and inconvenient, and in the long-term ventilation process, dust and other impurities in the coal mine can accumulate at the ventilation place, affecting the ventilation effect, therefore, an adjustable coal mine ventilation device is urgently needed. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of adjustable coal mine ventilation devices with reasonable design, to solve the above problems.

[0005] To achieve the above object, the utility model adopts the following technical scheme: it contains fan, ventilation pipe and ventilation frame, fan is connected with ventilation pipe, and ventilation pipe is provided with ventilation frame at pipe opening;

[0006] It also contains:

[0007] Fixed wind guide frame, the fixed wind guide frame is fixedly arranged in the ventilation frame, and a movable wind guide frame is movably arranged at the rear side of the fixed wind guide frame in the ventilation frame, and a plurality of ventilation openings are arranged on the fixed wind guide frame and the movable wind guide frame.

[0008] Threaded adjusting rod, the threaded adjusting rod is rotatably inserted in the bottom of the ventilation frame through bearing, and movable strips are fixedly arranged on the left and right sides of the movable wind guide frame, the movable strips are movably arranged in the movable slot formed on the inner wall of the ventilation frame, and the upper end of the threaded adjusting rod is rotatably inserted in the movable wind guide frame through thread.

[0009] A motor is fixedly arranged in the side wall of the ventilation frame, a sliding groove is arranged on the upper and lower inner side walls of the ventilation frame at the front side of the fixed air guide frame, a sliding block is slidably arranged in the sliding groove, a first bidirectional screw rod is rotatably connected to the lower sliding groove through a bearing, the lower sliding block is rotatably sleeved on the first bidirectional screw rod through a thread, and the output shaft of the motor is connected to one end of the first bidirectional screw rod.

[0010] A moving rod is fixedly arranged between the two sliding blocks, and the moving rod is provided with a cleaning mechanism.

[0011] Further, the cleaning mechanism comprises:

[0012] A lifting bar is movably arranged in a lifting groove arranged at the rear side of the moving rod, the rear side wall of the lifting bar is provided with a brush, and the upper and lower ends of the lifting bar are fixedly provided with movable rods;

[0013] A spring is fixedly arranged in the lower sliding block, and the lower movable rod is movably inserted into the lower sliding block through the lifting bar and is fixedly connected with the spring;

[0014] A wave guide bar is fixedly arranged in a strip-shaped groove arranged in the top wall of the upper sliding groove, and the upper end of the upper movable rod is movably arranged in contact with the wave guide bar through the lifting bar and the upper sliding block.

[0015] Further, the upper end of the upper movable rod is rotatably connected with a roller through a rotating shaft, and the roller is movably arranged in contact with the wave guide bar.

[0016] Further, an organ case is fixedly arranged in the sliding groove, and one end of the organ case is fixedly connected with the sliding block.

[0017] Further, a synchronous rod is rotatably connected to the left side wall of the ventilation frame through a bearing, a second bidirectional screw rod is rotatably connected to the upper sliding groove through a bearing, the upper sliding block is rotatably sleeved on the second bidirectional screw rod through a thread, and the two ends of the synchronous rod are respectively drivingly connected with the first bidirectional screw rod and the second bidirectional screw rod through a bevel gear pair.

[0018] Further, vertical rods are fixedly arranged on the left and right sides of the bottom of the movable air guide frame, the vertical rods are movably arranged on the lower side wall of the ventilation frame, and the front side of the vertical rod is provided with a scale line.

[0019] Compared with the prior art, the adjustable coal mine ventilation device has the advantages that the adjustment process of the wind speed is simple and fast, the ventilation place can be cleaned, dust accumulation in the ventilation place is avoided in the long-term use process, and the ventilation effect is affected. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the utility model.

[0021] Figure 2 is the parts explosion drawing of the ventilation frame, the fixed air guide frame, the movable air guide frame, the threaded adjusting rod, the movable strip and the vertical rod in the utility model.

[0022] Figure 3 is the parts explosion drawing of the motor, the sliding block, the first bidirectional screw rod, the moving rod, the movable rod, the wave guide strip, the synchronous rod and the bidirectional screw rod in the utility model.

[0023] Figure 4 is the enlarged view of A part in Figure 3 .

[0024] Figure 5 is the sectional view of the sliding block and the moving rod in the utility model.

[0025] Figure 6 is the enlarged view of B part in Figure 5 .

[0026] Explanation of reference signs:

[0027] Fan 1, ventilation pipe 2, ventilation frame 3, fixed air guide frame 4, movable air guide frame 5, ventilation opening 6, threaded adjusting rod 7, movable strip 8, movable groove 9, motor 10, sliding groove 11, sliding block 12, first bidirectional screw rod 13, moving rod 14, cleaning mechanism 15, lifting strip 15-1, brush 15-2, movable rod 15-3, spring 15-4, wave guide strip 15-5, lifting groove 16, strip-shaped groove 17, roller 18, organ cover 19, synchronous rod 20, second bidirectional screw rod 21, vertical rod 22, scale line 23. DETAILED DESCRIPTION

[0028] The technical solutions in the utility model will be described clearly and completely in combination with the drawings, and the preferred embodiments in the description are only as examples, and all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0029] As shown in Figures 1-4 , the specific embodiment adopts the following technical solutions: it contains fan 1, ventilation pipe 2 and ventilation frame 3, the fan 1 is connected with the ventilation pipe 2, and the ventilation pipe 2 is provided with the ventilation frame 3 at the pipe opening;

[0030] It also contains:

[0031] The fixed air guide frame 4 is fixedly arranged in the air guide frame 3, the movable air guide frame 5 is movably arranged at the rear side of the fixed air guide frame 4 in the air guide frame 3, a plurality of air vents 6 are arranged on the fixed air guide frame 4 and the movable air guide frame 5, and the vertical rods 22 are fixedly arranged on the left and right sides of the bottom of the movable air guide frame 5 and movably arranged on the lower side wall of the air guide frame 3, the front side of the vertical rod 22 is provided with a scale line 23, the vertical rod 22 can not only provide auxiliary guidance for the movement of the movable air guide frame 5 and improve the stability of the movable air guide frame 5, but also can know the position height of the movable air guide frame 5 in the air guide frame 3 by cooperation of the scale line 23.

[0032] The threaded adjusting rod 7 is rotatably inserted into the bottom of the air guide frame 3, the movable strips 8 are fixedly arranged on the left and right sides of the movable air guide frame 5 and movably arranged in the movable grooves 9 formed in the inner side wall of the air guide frame 3, and the upper end of the threaded adjusting rod 7 is rotatably inserted into the movable air guide frame 5.

[0033] The motor 10 is fixedly arranged in the side wall of the air guide frame 3, the sliding grooves 11 are formed in the upper and lower inner side walls of the air guide frame 3 and located at the front side of the fixed air guide frame 4, the sliding blocks 12 are slidably arranged in the sliding grooves 11, the first bidirectional screw rod 13 is rotatably connected to the sliding groove 11 in the lower side by a bearing, the sliding block 12 in the lower side is rotatably sleeved on the first bidirectional screw rod 13 by a thread, the output shaft of the motor 10 is connected to one end of the first bidirectional screw rod 13, the piano cover 19 is fixedly arranged in the sliding groove 11 and fixedly connected to the sliding block 12, and the piano cover 19 can provide protection for the lower sliding groove 11 to avoid a large amount of dust from falling into the lower sliding groove 11 and affecting the sliding of the lower sliding block 12.

[0034] The moving rod 14 is fixedly arranged between the two sliding blocks 12, the cleaning mechanism 15 is arranged on the moving rod 14, the synchronous rod 20 is rotatably connected to the left side wall of the air guide frame 3 by a bearing, the second bidirectional screw rod 21 is rotatably connected to the upper sliding groove 11 by a bearing, the sliding block 12 in the upper side is rotatably sleeved on the second bidirectional screw rod 21 by a thread, the two ends of the synchronous rod 20 are respectively connected to the first bidirectional screw rod 13 and the second bidirectional screw rod 21 through a bevel gear pair, and the movement of the upper sliding block 12 can be realized synchronously in the movement of the lower sliding block 12 through cooperation of the second bidirectional screw rod 21, the synchronous rod 20 and the bevel gear pair, so that the inclination of the moving rod 14 is avoided.

[0035] The cleaning mechanism 15 comprises:

[0036] Lifting bar 15-1, the lifting bar 15-1 is movably arranged in the lifting groove 16 opened in the rear side of the moving rod 14, the rear side wall of the lifting bar 15-1 is provided with the brush 15-2, and the upper and lower ends of the lifting bar 15-1 are fixedly provided with the movable rod 15-3;

[0037] Spring 15-4, the spring 15-4 is fixedly arranged in the lower sliding block 12, the lower movable rod 15-3 is movably inserted into the lower sliding block 12 through the lifting bar 15-1 and is fixedly connected with the spring 15-4;

[0038] Wavy guide bar 15-5, the wavy guide bar 15-5 is fixedly arranged in the strip-shaped groove 17 opened in the top wall of the upper sliding groove 11, the upper end of the upper movable rod 15-3 is movably arranged through the lifting bar 15-1 and the upper sliding block 12, is rotationally connected with the roller 18 through a rotating shaft, and the roller 18 is movably arranged in abutment with the wavy guide bar 15-5, the rotation of the roller 18 can avoid abrasion between the upper movable rod 15-3 and the wavy guide bar 15-5, when the moving rod 14 moves back and forth, the brush 15-2 can be moved on the fixed air guide frame 4 through the lifting bar 15-1, so that the cleaning of the fixed air guide frame 4 is realized, and through the cooperation of the movable rod 15-3, the spring 15-4 and the wavy guide bar 15-5, the brush 15-2 can be moved up and down reciprocatingly in the process of moving left and right, so that the cleaning effect of the brush 15-2 on the fixed air guide frame 4 is improved.

[0039] When the utility model is used, the threaded adjusting rod 7 can be rotated, the movable strip 8 is used to move in the movable groove 9, the position height of the movable air guide frame 5 in the air guide frame 3 is adjusted, the size of the position where the fixed air guide frame 4 and the movable air guide frame 5 are communicated with the air vent 6 is adjusted, under the condition that the fan 1 keeps constant air flow, the speed of the air can be adjusted, when the dust on the front side of the fixed air guide frame 4 needs to be cleaned, the motor 10 is started, the motor 10 drives the first bidirectional screw rod 13 to rotate, the first bidirectional screw rod 13 drives the synchronous rod 20 to rotate through the bevel gear pair, the synchronous rod 20 drives the second bidirectional screw rod 21 to rotate through the bevel gear pair, and then the synchronous rotation of the first bidirectional screw rod 13 and the second bidirectional screw rod 21 is realized, at this time, the two sliding blocks 12 move back and forth synchronously, the sliding block 12 drives the moving rod 14 to move back and forth, the moving rod 14 drives the brush 15-2 to move back and forth, the brush 15-2 cleans the dust on the fixed air guide frame 4, and in the process, the roller 18 rolls on the wavy guide bar 15-5, and through the cooperation of the movable rod 15-3 and the spring 15-4, the lifting bar 15-1 can move up and down reciprocatingly in the process of moving left and right, and the brush 15-2 moves up and down reciprocatingly with the lifting bar 15-1, so that the cleaning effect of the brush 15-2 on the fixed air guide frame 4 is improved.

[0040] Compared with the prior art, the utility model has the beneficial effects that:

[0041] 1、 through the cooperation of screw adjusting rod 7 and movable strip 8, conveniently operating can be realized the adjustment of the position height of movable air deflector 5 in air deflector 3, the size of the position of the air vent 6 of fixed air deflector 4 and movable air deflector 5 is adjusted, and then the adjustment of ventilation wind speed is realized;

[0042] 2、 through the cooperation of motor 10, sliding block 12, No. 1 bidirectional screw 13, moving rod 14 and cleaning mechanism 15, the front side of fixed air deflector 4 can be cleaned, avoid the accumulation of dust and affect the ventilation effect;

[0043] 3、 through the cooperation of No. 2 screw, synchronous rod 20 and bevel gear pair, the movement of lower sliding block 12 can be realized simultaneously in the process of the movement of upper sliding block 12, avoid the inclination of moving rod 14;

[0044] 4、 through the rotation of gyro wheel 18, the abrasion between upper movable rod 15-3 and wave guide strip 15-5 can be avoided.

[0045] For the person skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, equivalent replacement of partial technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An adjustable coal mine ventilation device, comprising a fan (1), a ventilation pipe (2) and a ventilation frame (3), the fan (1) is connected with the ventilation pipe (2), and the ventilation pipe (2) is provided with the ventilation frame (3) at the pipe opening; characterized in that It also contains: A fixed wind guide frame (4) is fixedly arranged in the ventilation frame (3), a movable wind guide frame (5) is movably arranged at the rear side of the fixed wind guide frame (4) in the ventilation frame (3), and a plurality of ventilation openings (6) are arranged on the fixed wind guide frame (4) and the movable wind guide frame (5) in cooperation; A threaded adjusting rod (7) is rotatably inserted into the bottom of the ventilation frame (3) through a bearing, movable strips (8) are fixedly arranged on the left and right sides of the movable wind guide frame (5), the movable strips (8) are movably arranged in the movable grooves (9) formed on the inner side walls of the ventilation frame (3), and the upper end of the threaded adjusting rod (7) is rotatably inserted into the movable wind guide frame (5) through a threaded connection; A motor (10) is fixedly arranged in the side wall of the ventilation frame (3), a sliding groove (11) is formed on the upper and lower inner side walls of the ventilation frame (3) at the front side of the fixed wind guide frame (4), a sliding block (12) is slidably arranged in the sliding groove (11), a first bidirectional screw (13) is rotatably connected to the lower sliding groove (11) through a bearing, the lower sliding block (12) is rotatably sleeved on the first bidirectional screw (13) through a threaded connection, and the output shaft of the motor (10) is connected with one end of the first bidirectional screw (13); A moving rod (14) is fixedly arranged between the two sliding blocks (12), and the moving rod (14) is provided with a cleaning mechanism (15).

2. An adjustable mine ventilation device according to claim 1, characterised in that: The cleaning mechanism (15) contains: A lifting strip (15-1) is movably arranged in the lifting groove (16) formed at the rear side of the moving rod (14), a brush (15-2) is arranged on the rear side wall of the lifting strip (15-1), and movable rods (15-3) are fixedly arranged at the upper and lower ends of the lifting strip (15-1); A spring (15-4) is fixedly arranged in the lower sliding block (12), the lower movable rod (15-3) is movably inserted into the lower sliding block (12) through the lifting strip (15-1) and is fixedly connected with the spring (15-4); A wave guide strip (15-5) is fixedly arranged in the strip-shaped groove (17) formed in the top wall of the upper sliding groove (11), and the upper end of the upper movable rod (15-3) is movably arranged in the wave guide strip (15-5) after passing through the lifting strip (15-1) and the upper sliding block (12).

3. An adjustable mine ventilation device according to claim 2, characterised in that: The upper end of the upper movable rod (15-3) is rotatably connected with a roller (18) through a rotating shaft, and the roller (18) is movably arranged on the wave guide strip (15-5).

4. An adjustable mine ventilation device according to claim 1, characterised in that: An organ cover (19) is fixedly arranged in the sliding groove (11), and one end of the organ cover (19) is fixedly connected with the sliding block (12).

5. An adjustable mine ventilation device according to claim 1, characterised in that: The left side wall of the ventilation frame (3) is rotatably connected with a synchronous rod (20) through a bearing, the upper slide groove (11) is rotatably connected with a second bidirectional screw rod (21) through a bearing, the upper slide block (12) is rotatably sleeved on the second bidirectional screw rod (21) through threads, and the two ends of the synchronous rod (20) are respectively connected with the first bidirectional screw rod (13) and the second bidirectional screw rod (21) through a bevel gear pair.

6. An adjustable mine ventilation device according to claim 1, characterised in that: The left and right sides of the bottom of the movable air guide frame (5) are fixedly provided with vertical rods (22), the vertical rods (22) are movably arranged on the lower side wall of the ventilation frame (3), and the front side of the vertical rod (22) is provided with a scale line (23).

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