A wind tube that is easy to clean for coal mining

Abstract

The utility model discloses a coal mining air duct that is easy to clean, including a cylinder body, a connecting plate is slidably sleeved inside the left and right ends of the cylinder body, a through groove is provided inside the connecting plate, and the left and right ends of the cylinder body are in contact with a fixed plate, the fixed plate is fixedly connected to the connecting plate, a filter screen is arranged inside the fixed plate, and a fixing strip is fixedly connected to the inner wall of the cylinder body. The utility model can prevent dust from entering the air duct by designing the filter screen. During the operation of the air duct, when the gas flows inside the cylinder body, the blades can drive the rotating shaft to rotate under the influence of wind force, and the rotating shaft can drive the bristles to rotate along the filter screen. Since the bristles are relatively fine, they can penetrate into the filter holes of the filter screen, and impurities inside the filter screen can be swept away, so as to achieve the purpose of cleaning the filter screen and prevent the filter screen from being blocked. The bristles can be easily disassembled, so as to facilitate cleaning or replacement of the bristles.

Description

Technical Field

[0001] The utility model relates to the technical field of air ducts, in particular to an air duct which is easy to clean during coal mining. Background Art

[0002] Coal mines are areas where humans mine coal resources in coal-rich mining areas. Most coal mines are underground coal mines. When the coal seam is far from the surface, people generally choose to dig tunnels underground to mine coal. This is an underground coal mine. During the production process of coal mines, since coal mines are usually located underground, air ducts are required for ventilation.

[0003] The utility model patent with the patent authorization announcement number CN207892640U discloses a retractable wind duct for coal mining, which belongs to the technical field of coal mine wind duct equipment and apparatus, including a fixed wind duct, a locking top ring, a rotating sleeve, a movable sleeve, a fixed handle, a movable support plate, and a filter mesh body, characterized in that: a locking top ring is inserted at the rear edge of the top end surface of the fixed wind duct side, a rotating sleeve is inserted at the front of the top end surface of the fixed wind duct side, a movable sleeve is fixedly connected to the edges around the front top surface of the rotating sleeve, the top end surface of the movable sleeve side is symmetrically fixedly connected with fixed handles, a movable support plate is connected below the front edge of the top end surface of the movable sleeve side, and a filter mesh body is fixedly connected inside the center of the front top surface of the movable sleeve, so that the staff can prevent the side wall of the telescopic cylinder from being damaged, and can prevent the staff from inhaling the filtered dust when it falls on the ground.

[0004] In the above prior art, during the use of the air duct, the filter can be used to filter impurities. During the operation of the filter, some impurities will inevitably adhere to the filter, which is inconvenient to clean, causing the filter to be blocked, thereby affecting the air flow and further affecting the use of the air duct. Therefore, improvements are needed. Utility Model Content

[0005] The utility model aims to provide a coal mine air duct which is easy to clean, thereby solving the problem that it is inconvenient to clean the filter screen.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal mining air duct that is easy to clean, comprising a cylinder body, connecting plates are slidably sleeved inside the left and right ends of the cylinder body, a through groove is opened inside the connecting plate, the left and right ends of the cylinder body are in contact with fixed plates, the fixed plate is fixedly connected to the connecting plate, a filter is arranged inside the fixed plate, a fixing bar is fixedly connected to the inner wall of the cylinder body, the fixing bar is rotatably connected to a rotating shaft through a bearing, a cleaning mechanism is arranged on the filter, and a connecting mechanism is arranged on the fixed plate.

[0007] Preferably, the cleaning mechanism includes blades, the circumferential surface of the rotating shaft is fixedly connected with blades, the interior of the rotating shaft is fixedly connected with a fixed rod, the outer side of the fixed rod is provided with a first spring, the outer side of the fixed rod is slidably sleeved with two symmetrically distributed sliding rods, the sliding rods are slidably connected to the rotating shaft, the ends of the two sliding rods away from each other are fixedly connected with protrusions, the protrusions are slidably connected to the rotating shaft, the outer side of the protrusions is slidably sleeved with a connecting sleeve, the connecting sleeve is slidably connected to the rotating shaft, the outer side of the connecting sleeve is fixedly connected with a connecting strip, the connecting strip is in contact with the rotating shaft, the end of the connecting strip close to the filter is provided with bristles, the bristles are in contact with the filter. By designing the cleaning mechanism, it is convenient to clean the filter.

[0008] Preferably, one end of the first spring is fixedly connected to one of the slide bars, and the other end of the first spring is fixedly connected to the other slide bar. By designing the first spring, the force of the first spring can act on the slide bar.

[0009] Preferably, the number of the connecting sleeves is two, and the two connecting sleeves are symmetrically distributed on the rotating shaft. By designing the connecting sleeves, the connecting strip can be connected to the rotating shaft.

[0010] Preferably, a groove is provided inside the connecting sleeve, and a protrusion is slidably connected inside the groove. The groove is designed so that the protrusion can be slidably inserted into the connecting sleeve.

[0011] Preferably, the connection mechanism includes a pressure block, the outer side of the fixed disk contacts two pressure blocks that are symmetrically distributed, the inner side of the pressure block is fixedly sleeved with an annular pull rod, the outer side of the pressure block is fixedly connected with a slide seat, the slide seat is slidably connected to the fixed disk, the inner side of the slide seat is fixedly sleeved with a guide rod, the outer side of the guide rod is slidably sleeved with a guide seat, the guide seat is fixedly connected to the cylinder, a second spring is arranged inside the guide seat, the inner side of the guide seat is slidably sleeved with a slider, and the slider is fixedly connected to the guide rod. By designing the connection mechanism, it is convenient to disassemble the connection strip.

[0012] Preferably, one end of the second spring is fixedly connected to the slider, and the other end of the second spring is fixedly connected to the guide seat. By designing the second spring, the force of the second spring can act on the slider.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model can prevent dust from entering the air duct by designing the filter. When the air flows inside the air duct during operation, the blades can drive the shaft to rotate under the influence of wind force, and the shaft can drive the bristles to rotate along the filter. Since the bristles are fine, they can penetrate into the filter holes of the filter to remove impurities inside the filter, thereby achieving the purpose of cleaning the filter and preventing the filter from being blocked. The bristles can be easily disassembled for easy cleaning or replacement.

[0015] 2. The utility model can limit the fixed disk by designing the pressure block, and the fixed disk can be connected to the cylinder for use. The pressure block and the fixed disk can be separated by stretching the annular pull rod outward. At this time, the fixed disk can be disassembled by horizontally moving the fixed disk and taking the connecting disk out of the cylinder, which is convenient for deep cleaning of the filter or replacement of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 A front cross-sectional view of the local structure of the cylinder;

[0018] Figure 3 For this utility model Figure 2 A magnified image of point A;

[0019] Figure 4 For this utility model Figure 1 A three-dimensional cross-sectional view of the local structure of the cylinder.

[0020] In the figure: 1. cylinder; 2. connecting plate; 3. through groove; 4. fixed plate; 5. filter screen; 6. fixing bar; 7. rotating shaft; 8. cleaning mechanism; 9. connecting mechanism; 81. blade; 82. fixing rod; 83. first spring; 84. sliding rod; 85. protrusion; 86. connecting sleeve; 87. groove; 88. connecting bar; 89. bristles; 91. pressing block; 92. annular pull rod; 93. sliding seat; 94. guide rod; 95. guide seat; 96. second spring; 97. sliding block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 , Figure 4 A coal mining air duct that is easy to clean includes a cylinder 1, connecting plates 2 are slidably sleeved inside the left and right ends of the cylinder 1, a through groove 3 is opened inside the connecting plate 2, the left and right ends of the cylinder 1 are in contact with fixed plates 4, the fixed plate 4 is fixedly connected to the connecting plate 2, a filter screen 5 is arranged inside the fixed plate 4, a fixing bar 6 is fixedly connected to the inner wall of the cylinder 1, a rotating shaft 7 is rotatably connected to the inside of the fixing bar 6 through a bearing, a cleaning mechanism 8 is arranged on the filter screen 5, and a connecting mechanism 9 is arranged on the fixed plate 4.

[0023] See also Figure 1 , Figure 2 , Figure 3 The cleaning mechanism 8 includes a blade 81, a blade 81 is fixedly connected to the circumferential surface of the rotating shaft 7, a fixed rod 82 is fixedly connected to the inside of the rotating shaft 7, a first spring 83 is arranged on the outside of the fixed rod 82, one end of the first spring 83 is fixedly connected to one of the slide rods 84, and the other end of the first spring 83 is fixedly connected to the other slide rod 84. By designing the first spring 83, the force of the first spring 83 can act on the slide rod 84. Two symmetrically distributed slide rods 84 are slidably sleeved on the outside of the fixed rod 82. The slide rods 84 are slidably connected to the rotating shaft 7. The ends of the two slide rods 84 that are away from each other are fixedly connected with a protrusion 85, and the protrusion 85 is slidably connected to the rotating shaft 7. The outer sliding sleeve is connected to a connecting sleeve 86, and a groove 87 is provided inside the connecting sleeve 86. The inside of the groove 87 is slidingly connected to a protrusion 85. By designing the groove 87, the protrusion 85 can be slidably inserted into the connecting sleeve 86. The connecting sleeve 86 is slidably connected to the rotating shaft 7. There are two connecting sleeves 86, and the two connecting sleeves 86 are symmetrically distributed on the rotating shaft 7. By designing the connecting sleeve 86, the connecting strip 88 can be connected to the rotating shaft 7. The outer side of the connecting sleeve 86 is fixedly connected to a connecting strip 88, and the connecting strip 88 is in contact with the rotating shaft 7. The end of the connecting strip 88 close to the filter 5 is provided with bristles 89, and the bristles 89 are in contact with the filter 5. By designing the cleaning mechanism 8, it is convenient to clean the filter 5.

[0024] See also Figure 1 , Figure 4The connecting mechanism 9 includes a pressing block 91. The outer side of the fixed disk 4 contacts with two pressing blocks 91 which are symmetrically distributed. The inner part of the pressing block 91 is fixedly sleeved with an annular pull rod 92. The outer side of the pressing block 91 is fixedly connected with a slide seat 93. The slide seat 93 is slidably connected to the fixed disk 4. The inner part of the slide seat 93 is fixedly sleeved with a guide rod 94. The outer side of the guide rod 94 is slidably sleeved with a guide seat 95. The guide seat 95 is fixedly connected to the cylinder 1. A second spring 96 is arranged inside the guide seat 95. One end of the second spring 96 is fixedly connected to the slider 97. The other end of the second spring 96 is fixedly connected to the guide seat 95. By designing the second spring 96, the force of the second spring 96 can act on the slider 97. The inner part of the guide seat 95 is slidably sleeved with a slider 97. The slider 97 is fixedly connected to the guide rod 94. By designing the connecting mechanism 9, it is convenient to disassemble the connecting strip 88.

[0025] The specific implementation process of the utility model is as follows: when in use, the filter screen 5 can prevent dust from entering the air duct. During the operation of the air duct, when the gas flows inside the cylinder 1, the blade 81 can be affected by the wind force to drive the shaft 7 to rotate, and the shaft 7 can drive the connecting strip 88 to rotate. The connecting strip 88 drives the bristles 89 to rotate along the filter screen 5. Since the bristles 89 are relatively thin, they can penetrate into the filter holes of the filter screen 5, and the impurities inside the filter screen 5 can be swept away, so as to achieve the purpose of cleaning the filter screen 5 and prevent the filter screen 5 from being blocked. When the filter screen 5 needs to be disassembled, the annular pull rod 92 is stretched outward, and the annular pull rod 92 drives the slide seat 93 and the guide rod 94 to move horizontally, and the guide rod 94 drives the slide block 97 to slide along the guide seat 95, and the guide seat 95 squeezes the second spring 96, so that the pressure block 91 is separated from the fixed disk 4, and then the fixed disk 4 is moved horizontally, and the fixed disk 4 drives the connecting disk 2 to move and is taken out from the cylinder 1 to disassemble the fixed disk 4, so as to facilitate the deep cleaning of the filter screen 5 or the replacement of the filter screen 5. When the fixed plate 4 is disassembled, the connecting strip 88 can be pulled horizontally, and the connecting strip 88 can drive the connecting sleeve 86 to slide along the rotating shaft 7, so that the connecting sleeve 86 can be removed from the rotating shaft 7, so that the bristles 89 can be cleaned or replaced.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mining easy-to-clean wind tube, comprising a cylinder body (1), characterized in that: The left and right ends of the cylinder (1) are both slidably sleeved with connection disks (2), the connection disks (2) are provided with through grooves (3), the left and right ends of the cylinder (1) are both in contact with fixed disks (4), the fixed disks (4) are fixedly connected to the connection disks (2), a filter screen (5) is provided inside the fixed disks (4), a fixing bar (6) is fixedly connected to the inner wall of the cylinder (1), the fixing bar (6) is rotatably connected to a rotating shaft (7) via a bearing, a cleaning mechanism (8) is provided on the filter screen (5), and a connecting mechanism (9) is provided on the fixed disk (4).

2. The easy-to-clean wind tube for coal mining according to claim 1, characterized in that: The cleaning mechanism (8) comprises a blade (81), the circumferential surface of the rotating shaft (7) is fixedly connected with the blade (81), the interior of the rotating shaft (7) is fixedly connected with a fixing rod (82), the outer side of the fixing rod (82) is provided with a first spring (83), the outer side of the fixing rod (82) is slidably sleeved with two symmetrically distributed sliding rods (84), the sliding rods (84) are slidably connected to the rotating shaft (7), and the ends of the two sliding rods (84) that are away from each other are fixedly connected A protrusion (85) is connected, the protrusion (85) is slidably connected to the rotating shaft (7), the outer side of the protrusion (85) is slidably sleeved with a connecting sleeve (86), the connecting sleeve (86) is slidably connected to the rotating shaft (7), the outer side of the connecting sleeve (86) is fixedly connected with a connecting strip (88), the connecting strip (88) is in contact with the rotating shaft (7), and bristles (89) are provided at one end of the connecting strip (88) close to the filter screen (5), and the bristles (89) are in contact with the filter screen (5).

3. The easy-to-clean wind tube for coal mining according to claim 2, characterized in that: One end of the first spring (83) is fixedly connected to one of the sliding rods (84), and the other end of the first spring (83) is fixedly connected to the other sliding rod (84).

4. The easy-to-clean wind tube for coal mining according to claim 2, characterized in that: The number of the connecting sleeves (86) is two, and the two connecting sleeves (86) are symmetrically distributed on the rotating shaft (7).

5. The easy-to-clean wind tube for coal mining according to claim 2, characterized in that: The connection sleeve (86) is provided with a groove (87) inside, and a protrusion (85) is slidably connected inside the groove (87).

6. The easy-to-clean wind tube for coal mining according to claim 1, characterized in that: The connecting mechanism (9) comprises a pressure block (91), the outer side of the fixed disk (4) is in contact with two symmetrically distributed pressure blocks (91), the inner side of the pressure block (91) is fixedly sleeved with an annular pull rod (92), the outer side of the pressure block (91) is fixedly connected with a slide seat (93), the slide seat (93) is slidably connected to the fixed disk (4), the inner side of the slide seat (93) is fixedly sleeved with a guide rod (94), the outer side of the guide rod (94) is slidably sleeved with a guide seat (95), the guide seat (95) is fixedly connected to the cylinder (1), a second spring (96) is arranged inside the guide seat (95), the inner side of the guide seat (95) is slidably sleeved with a slider (97), and the slider (97) is fixedly connected to the guide rod (94).

7. The easy-to-clean wind tube for coal mining according to claim 6, characterized in that: One end of the second spring (96) is fixedly connected to the slider (97), and the other end of the second spring (96) is fixedly connected to the guide seat (95).

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