Coal mine underground ventilation structure convenient to fix

Abstract

The utility model discloses a coal mine underground ventilation structure convenient to fix in the technical field of ventilation devices, which comprises an adjusting mechanism, the adjusting mechanism comprises a moving box, an electric push rod is arranged in the moving box, a ventilation device is fixedly arranged at the extending end of the electric push rod, and two sealing plates are symmetrically arranged at the top of the inner wall of the moving box; the positioning mechanism comprises two internal thread pipes; ventilation equipment is conveniently pushed to move upwards through the electric push rod, the guide cylinder is driven to move, the inner threaded pipe is promoted to rotate along with movement of the guide cylinder, the positioning piece is promoted to move downwards, and therefore the positioning piece is promoted to be inserted into the ground, the position of the device is conveniently fixed, and the position of the device is more convenient to fix; and when the electric push rod pulls the ventilation pipe to move downwards, the steel cable loses tension, at the moment, the sealing plate is conveniently pushed through the spring to reset to seal the movable box, and therefore the ventilation equipment is conveniently protected through cooperation of the movable box and the sealing plate.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation devices, in particular to an underground ventilation structure for coal mines which is easy to fix. Background Art

[0002] In modern mines, when coal mining is carried out, the air inside is relatively scarce. In order to ensure that there is sufficient oxygen inside the mine for workers to breathe, multiple sets of ventilation equipment need to be installed inside the mine. By using the internal motor device to rotate the ventilation blades, the air circulation effect is increased.

[0003] An existing patent (Announcement No. CN221076023U) discloses a coal mine ventilation equipment adjustment device that effectively solves the problem of underground coal mine ventilation equipment being unable to quickly adjust its height and angle. The device comprises a base, a support plate located directly above the base, and two lifting frames located on the left and right sides of the base and the support plate, each of which is opposed to the other and can move the support plate up and down. By arranging the base, the support plate, and the lifting frames, the lifting frames can be used to move the support plate up and down, thereby achieving the purpose of adjusting the height of the air duct. However, this technical solution still has shortcomings, as follows:

[0004] This device uses shock-absorbing universal wheels at the bottom of the base to allow it to be moved. However, when the device is in use, the operator needs to lock the universal wheels and use a positioning mechanism to fix the device in the coal mine, which makes it difficult to fix the device in place. To address this problem, we propose a conveniently fixed underground coal mine ventilation structure to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the present invention to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] Therefore, the purpose of the present utility model is to provide a ventilation structure for coal mines that is easy to fix, which can solve the problem that the existing device can be moved by arranging shock-absorbing universal wheels at the bottom of the base. However, when the device is in use, the operator needs to lock the universal wheels and use a positioning mechanism to fix the device in the coal mine, so it is more troublesome to fix the position of the device.

[0007] In order to solve the above technical problems, the utility model provides a ventilation structure for coal mines that is easy to fix, and adopts the following technical solution: comprising an adjustment mechanism, which includes a movable box, an electric push rod is provided in the movable box, a ventilation device is fixedly provided at the extended end of the electric push rod, and two sealing plates are symmetrically provided on the top of the inner wall of the movable box;

[0008] The positioning mechanism includes two internally threaded tubes, which are symmetrically arranged at the bottom of the moving box. The tops of the outer walls of the two internally threaded tubes are provided with spiral grooves. The lower ends of the two internally threaded tubes are threadedly connected with positioning parts. The bottom of the ventilation equipment is provided with a guide cylinder corresponding to the internally threaded tube, and the guide cylinder is movably sleeved on the internally threaded tube.

[0009] By adopting the above technical solution, this solution uses an electric push rod to pull the ventilation equipment into the mobile box, and then closes the sealing plate, so that the mobile box and the sealing plate cooperate to protect the ventilation equipment, and as the guide cylinder moves downward, the internal threaded tube rotates, thereby causing the positioning part to move up and separate from the ground, thereby facilitating the operator to move the position of the device.

[0010] Optionally, the bottom of the moving box is provided with self-locking rollers, and the side walls of the moving box are fixedly provided with pull rods.

[0011] By adopting the above technical solution, the present solution facilitates the operator to move the position of the device through the self-locking roller, and facilitates the operator to pull the device to move through the pull rod.

[0012] Optionally, the ventilation equipment includes a ventilation pipe and a fan, the fan is arranged in the ventilation pipe, the ventilation pipe is fixedly arranged at the protruding end of the electric push rod, and a filter plate is arranged in the ventilation pipe.

[0013] By adopting the above technical solution, this solution facilitates ventilation of the air in the coal mine through the cooperation of the fan and the ventilation pipe, and filters the dust in the coal mine through the filter plate.

[0014] Optionally, a motor is fixedly provided on the side wall of the filter plate, a rotating shaft of the motor passes through the filter plate and is fixedly provided with a plurality of scrapers, and the scrapers are slidably fitted with the side wall of the filter plate.

[0015] By adopting the above technical solution, the present solution facilitates the rotation of the scraper by the motor, and as the scraper rotates, it facilitates the scraping of dust attached to the surface of the filter plate.

[0016] Optionally, a water tank is fixedly connected to the bottom of the ventilation pipe, the internal space of the water tank is connected to the ventilation pipe, and the water tank is below the filter plate.

[0017] By adopting the above technical solution, when the scraper scrapes the dust down, the dust is soaked by the water in the water tank.

[0018] Optionally, the inner wall of the movable box is provided with two sliding grooves corresponding to the sealing plate, and limit blocks are fixedly provided at both ends of the sealing plate. The two limit blocks slide with the inner walls of the two sliding grooves respectively, and the limit blocks are connected to the inner walls of the sliding grooves by setting springs. A steel cable is fixedly provided at the bottom of the sealing plate, and the end of the steel cable away from the sealing plate passes through the movable box and is fixedly connected to the side wall of the ventilation pipe.

[0019] By adopting the above technical solution, when the electric push rod pushes the ventilation pipe to move, the steel cable is pulled to move. At this time, the steel cable pulls the sealing plate to move and prompts the movable box to open, while prompting the spring to compress and deform.

[0020] Optionally, the positioning member includes two screws and a connecting plate, the upper ends of the two screws are respectively threadedly inserted into two internal threaded tubes, the lower ends of the two screws are connected by a connecting plate, and a plurality of positioning pins are provided on the bottom surface of the connecting plate.

[0021] By adopting the above technical solution, this solution facilitates pushing the ventilation equipment upward and driving the guide cylinder to move through the electric push rod. As the guide cylinder moves, the internal threaded tube rotates. As the internal threaded tube rotates, the two screws drive the connecting plate and the positioning pin downward, thereby prompting the positioning pin to be inserted into the ground.

[0022] Optionally, a semicircular block is fixedly provided on the inner wall of the guide cylinder, and the semicircular block is slidably engaged with the inner wall of the spiral groove.

[0023] By adopting the above technical solution, when the guide cylinder moves, the semicircular block slides along the inner wall of the spiral groove, thereby prompting the internal threaded tube to rotate.

[0024] In summary, the present invention has at least one of the following beneficial effects:

[0025] The electric push rod facilitates the upward movement of the ventilation device and drives the guide cylinder to move. As the guide cylinder moves, the internal threaded tube rotates, causing the positioning piece to move downward, thereby causing the positioning piece to be inserted into the ground, thereby facilitating the fixing of the device position, and the device position fixing is more convenient;

[0026] When the electric push rod pulls the ventilation pipe downward, the steel cable loses its tension. At this time, the spring facilitates the restoration of the sealing plate to seal the movable box, thereby protecting the ventilation equipment through the cooperation of the movable box and the sealing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0029] Figure 2 This is a partial three-dimensional expanded structural cross-sectional view of the mobile box of the utility model;

[0030] Figure 3 This is a partial three-dimensional expanded structural cross-sectional view of the ventilation equipment of the present invention.

[0031] Explanation of Reference Numerals: 100, adjustment mechanism; 101, moving box; 101a, self-locking roller; 101b, pull rod; 101c, slide; 102, electric push rod; 103, ventilation device; 103a, ventilation pipe; 103b, fan; 103c, filter plate; 103d, motor; 103e, scraper; 103f, water tank; 104, sealing plate; 104a, limit block; 104b, spring; 104c, steel cable;

[0032] 200, positioning mechanism; 201, internally threaded tube; 202, spiral groove; 203, positioning member; 203a, screw; 203b, connecting plate; 203c, positioning pin; 204, guide cylinder; 204a, semicircular block. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-Figure 3 The utility model is described in further detail.

[0034] Example 1, refer to Figure 1-Figure 3 In this embodiment, in order to solve the problem that the existing device is movable by providing shock-absorbing universal wheels at the bottom of the base, but when the device is in use, the operator needs to lock the universal wheels and use a positioning mechanism to fix the device in the coal mine, so it is troublesome to fix the position of the device, the utility model discloses a coal mine underground ventilation structure that is easy to fix.

[0035] It includes an adjustment mechanism 100, which includes a moving box 101. The bottom of the moving box 101 is provided with a self-locking roller 101a, and the side wall of the moving box 101 is fixedly provided with a pull rod 101b. The self-locking roller 101a facilitates the operator to move the position of the device, and the pull rod 101b facilitates the operator to pull the device to move.

[0036] An electric push rod 102 is provided in the mobile box 101, and a ventilation device 103 is fixedly provided at the protruding end of the electric push rod 102. The electric push rod 102 can be used to push the ventilation device 103 upward, thereby prompting the ventilation device 103 to move to the outside of the mobile box 101, and then the ventilation device 103 is started to facilitate ventilation inside the coal mine.

[0037] Two sealing plates 104 are symmetrically arranged on the top of the inner wall of the moving box 101. The ventilation equipment 103 is pulled into the moving box 101 by the electric push rod 102, and then the sealing plates 104 are closed, so that the ventilation equipment 103 is protected by the cooperation between the moving box 101 and the sealing plates 104.

[0038] The positioning mechanism 200 includes two internally threaded tubes 201, which are symmetrically arranged at the bottom of the mobile box 101. The top of the outer wall of the two internally threaded tubes 201 is provided with a spiral groove 202. The lower ends of the two internally threaded tubes 201 are threadedly connected with a positioning member 203. The bottom of the ventilation device 103 is provided with a guide cylinder 204 corresponding to the internally threaded tube 201. The positioning member 203 includes two screws 203a and a connecting plate 203b. The upper ends of the two screws 203a are respectively threadedly inserted into the two internally threaded tubes 20 1, the lower ends of the two screw rods 203a are connected by a connecting plate 203b, and a plurality of positioning pins 203c are provided on the bottom surface of the connecting plate 203b. The electric push rod 102 facilitates the upward movement of the ventilation device 103 and drives the guide cylinder 204 to move. As the guide cylinder 204 moves, the internal threaded tube 201 rotates. As the internal threaded tube 201 rotates, the two screw rods 203a drive the connecting plate 203b and the positioning pins 203c to move downward, thereby causing the positioning pins 203c to be inserted into the ground, thereby fixing the position of the device.

[0039] The guide cylinder 204 is movably mounted on the internal threaded tube 201. A semicircular block 204a is fixedly provided on the inner wall of the guide cylinder 204. The semicircular block 204a slides with the inner wall of the spiral groove 202. When the guide cylinder 204 moves, the semicircular block 204a slides along the inner wall of the spiral groove 202, thereby causing the internal threaded tube 201 to rotate, and then controlling the movement of the screw 203a, the connecting plate 203b and the positioning pin 203c.

[0040] The specific working principle is as follows: first, the electric push rod 102 pulls the ventilation device 103 into the movable box 101, and then closes the sealing plate 104, so that the movable box 101 and the sealing plate 104 cooperate to protect the ventilation device 103. As the guide cylinder 204 moves downward, the internal threaded tube 201 rotates, which causes the positioning member 203 to move upward and separate from the ground, thereby facilitating the operator to move the device.

[0041] The electric push rod 102 facilitates the upward movement of the ventilation device 103 and drives the guide cylinder 204 to move. As the guide cylinder 204 moves, the internal threaded tube 201 rotates and the positioning member 203 moves downward, thereby prompting the positioning member 203 to be inserted into the ground, thereby facilitating the fixation of the position of the device, and the position fixation of the device is more convenient.

[0042] Example 2, refer to Figure 2-Figure 3 In order to solve the problem of troublesome dust cleaning in some existing ventilation devices, in this embodiment, based on the same concept as the above-mentioned embodiment 1, the coal mine underground ventilation structure that is easy to fix also includes:

[0043] The ventilation equipment 103 includes a ventilation pipe 103a and a fan 103b. The fan 103b is arranged in the ventilation pipe 103a. The ventilation pipe 103a is fixedly arranged at the protruding end of the electric push rod 102. A filter plate 103c is arranged in the ventilation pipe 103a. The fan 103b cooperates with the ventilation pipe 103a to facilitate ventilation of the air in the coal mine, and the dust in the coal mine is filtered through the filter plate 103c, thereby reducing the dust content of the air inside the coal mine.

[0044] A motor 103d is fixedly installed on the side wall of the filter plate 103c. The rotating shaft of the motor 103d passes through the filter plate 103c and is fixed with a number of scrapers 103e. The scrapers 103e slide in cooperation with the side wall of the filter plate 103c. The motor 103d can easily drive the scrapers 103e to rotate. As the scrapers 103e rotate, the dust attached to the surface of the filter plate 103c can be scraped away, thereby reducing the possibility of dust clogging the filter plate 103c.

[0045] A water tank 103f is fixedly connected to the bottom of the ventilation pipe 103a, and the internal space of the water tank 103f is connected to the ventilation pipe 103a. The water tank 103f is below the filter plate 103c. When the scraper 103e scrapes the dust down, the dust is soaked by the water in the water tank 103f, thereby reducing the possibility of dust flowing back into the ventilation pipe 103a.

[0046] The specific working principle is: the air in the coal mine is ventilated by cooperating with the fan 103b and the ventilation pipe 103a, and the dust in the coal mine is filtered by the filter plate 103c, thereby reducing the dust content of the air inside the coal mine. The motor 103d is used to drive the scraper 103e to rotate. As the scraper 103e rotates, it is easy to scrape the dust attached to the surface of the filter plate 103c. When the scraper 103e scrapes the dust down, the dust is soaked by the water in the water tank 103f, thereby reducing the possibility of dust flowing back into the ventilation pipe 103a.

[0047] Example 3, refer to Figure 2Based on the same concept as the first embodiment, the fixed underground ventilation structure for coal mines further includes:

[0048] The inner wall of the moving box 101 is provided with two slide grooves 101c corresponding to the sealing plate 104. Limit blocks 104a are fixedly provided at both ends of the sealing plate 104. The two limit blocks 104a slide with the inner walls of the two slide grooves 101c respectively. The limit blocks 104a are connected to the inner walls of the slide grooves 101c by setting a spring 104b. A steel cable 104c is fixedly provided at the bottom of the sealing plate 104. The end of the steel cable 104c away from the sealing plate 104 passes through the moving box 101 and is fixedly connected to the side wall of the ventilation pipe 103a.

[0049] The specific working principle is: the slide groove 101c cooperates with the limit block 104a to increase the stability of the sealing plate 104 when it moves. When the electric push rod 102 pushes the ventilation pipe 103a to move, it pulls the steel cable 104c to move. At this time, the steel cable 104c pulls the sealing plate 104 to move and prompts the movable box 101 to open, while prompting the spring 104b to compress and deform. When the electric push rod 102 pulls the ventilation pipe 103a to move downward, the steel cable 104c loses its tension. At this time, the spring 104b facilitates the restoration of the sealing plate 104 to seal the movable box 101.

[0050] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A ventilation structure for underground coal mines that is easy to fix, characterized by: include, An adjusting mechanism (100) comprises a moving box (101), an electric push rod (102) is provided in the moving box (101), a ventilation device (103) is fixedly provided at the protruding end of the electric push rod (102), and two sealing plates (104) are symmetrically provided on the top of the inner wall of the moving box (101); A positioning mechanism (200) comprises two internally threaded tubes (201), the two internally threaded tubes (201) being symmetrically arranged at the bottom of a moving box (101), a spiral groove (202) being provided at the top of the outer wall of the two internally threaded tubes (201), a positioning member (203) being threadedly connected to the lower end of the two internally threaded tubes (201), a guide cylinder (204) corresponding to the internally threaded tube (201) being provided at the bottom of the ventilation device (103), and the guide cylinder (204) being movably sleeved on the internally threaded tube (201).

2. The easy-to-fix coal mine underground ventilation structure according to claim 1, characterized in that: The bottom of the moving box (101) is provided with a self-locking roller (101a), and the side wall of the moving box (101) is fixedly provided with a pull rod (101b).

3. The easy-to-fix underground coal mine ventilation structure according to claim 1, characterized in that: The ventilation device (103) comprises a ventilation pipe (103a) and a fan (103b), wherein the fan (103b) is arranged in the ventilation pipe (103a), the ventilation pipe (103a) is fixedly arranged at the protruding end of the electric push rod (102), and a filter plate (103c) is arranged in the ventilation pipe (103a).

4. The easily fixed underground coal mine ventilation structure according to claim 3, characterized in that: A motor (103d) is fixedly provided on the side wall of the filter plate (103c); a rotating shaft of the motor (103d) passes through the filter plate (103c) and is fixedly provided with a plurality of scrapers (103e); the scrapers (103e) are in sliding engagement with the side wall of the filter plate (103c).

5. The easy-to-fix coal mine underground ventilation structure according to claim 4, characterized in that: A water storage tank (103f) is fixedly plugged into the bottom of the ventilation pipe (103a); the internal space of the water storage tank (103f) is in communication with the ventilation pipe (103a); and the water storage tank (103f) is located below the filter plate (103c).

6. The easily fixed underground coal mine ventilation structure according to claim 3, characterized in that: The inner wall of the movable box (101) is provided with two sliding grooves (101c) corresponding to the sealing plate (104), and both ends of the sealing plate (104) are fixedly provided with limit blocks (104a), and the two limit blocks (104a) are respectively slidably matched with the inner walls of the two sliding grooves (101c), and the limit blocks (104a) are connected to the inner walls of the sliding grooves (101c) by setting springs (104b), and a steel cable (104c) is fixedly provided at the bottom of the sealing plate (104), and the end of the steel cable (104c) away from the sealing plate (104) passes through the movable box (101) and is fixedly connected to the side wall of the ventilation pipe (103a).

7. The easy-to-fix underground coal mine ventilation structure according to claim 1, characterized in that: The positioning member (203) comprises two screw rods (203a) and a connecting plate (203b), wherein the upper ends of the two screw rods (203a) are respectively threadedly inserted into two internally threaded tubes (201), and the lower ends of the two screw rods (203a) are connected via a connecting plate (203b), and a plurality of positioning pins (203c) are provided on the bottom surface of the connecting plate (203b).

8. The easily fixed underground coal mine ventilation structure according to claim 1, characterized in that: A semicircular block (204a) is fixedly provided on the inner wall of the guide cylinder (204), and the semicircular block (204a) is in sliding engagement with the inner wall of the spiral groove (202).

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