Coal mine ventilation air duct protection device convenient to disassemble and assemble

Abstract

The invention relates to the technical field of air duct protection, in particular to a coal mine ventilation air duct protection device convenient to disassemble and assemble, which comprises an air duct, a protection sleeve arranged on the outer wall of the air duct in a sleeving manner, and protection mechanisms arranged on the outer walls of the two ends of the air duct in a sleeving manner, and an elastic mechanism for fixing the protection mechanism and the outer wall of the air duct and a sealing mechanism for releasing the protection mechanism and the outer wall of the air duct from a fixed state are arranged in the protection mechanism. While the air duct is protected, mounting and dismounting are facilitated, and dismounting and maintenance of the protection device are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of wind duct protection, in particular to a wind duct protection device for coal mine ventilation which is easy to assemble and disassemble. Background Art

[0002] Coal mine ventilation is to deliver enough fresh air underground to supply the miners with the oxygen they need to breathe, and to discharge the air diluted with harmful gases and mine dust to the ground, so as to ensure the air quality underground and limit the concentration of mine dust to a safe range. After the fresh air is delivered to the mine, it can adjust the climatic conditions of the underground tunnels and workplaces, meet the wind speed, temperature and humidity requirements specified underground, and create a good working environment.

[0003] The air ducts used for ventilating mines are relatively fragile due to their materials and the environment in which they are used. Once damaged, they will affect the ventilation effect in the mine and seriously affect construction safety.

[0004] The Chinese utility model patents with announcement numbers CN214887170U and CN211038711U both disclose a wind tube protective device. The above patents not only protect the wind tube but are also easy to install. However, once the protective device is damaged, the disassembly process is relatively inconvenient.

[0005] In view of this, it is necessary to develop a wind tube protective device for coal mine ventilation that is easy to disassemble and assemble, so as to solve the problem of rapid disassembly and assembly of the protective device and facilitate subsequent disassembly and maintenance. Summary of the invention

[0006] In view of the above problems, an object of the present invention is to provide a wind tube protection device that can be easily installed and disassembled.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a protective device for a wind tube for coal mine ventilation that is easy to disassemble and assemble, comprising: a wind tube and a protective sleeve sleeved on the outer wall of the wind tube and protective mechanisms sleeved on the outer walls at both ends of the wind tube, wherein the protective mechanism is provided with a loosening mechanism for fixing the protective mechanism to the outer wall of the wind tube, and a sealing mechanism for releasing the protective mechanism from the fixed state with the outer wall of the wind tube;

[0008] Furthermore, the tensioning mechanism includes a groove arranged on the outer surface of the protective mechanism and an annular groove arranged on the inner surface of the protective mechanism and arranged along the circumference of the protective mechanism, an air bag matching with the annular groove is arranged in the annular groove, an air pump is arranged in the groove, an output end of the air pump is connected with the air bag in the annular groove through a connecting pipe, and an air release pipe is also arranged on the air bag, and the air release pipe is blocked by a sealing mechanism;

[0009] Furthermore, the sealing mechanism comprises a rectangular groove arranged on the outer surface of the protective mechanism and a sealing block slidably arranged in the rectangular groove, the sealing block is provided with a pull rod protruding out of the rectangular groove, and the sealing block is close to the end surface of the airbag for blocking the deflation pipe of the airbag;

[0010] Furthermore, a fixing mechanism is provided between the two protection mechanisms, and the fixing mechanism includes a limit rod and a connecting rod located between the two protection mechanisms and parallel to the axis of the wind tube, one end of the limit rod is fixed to the side wall of one of the protection mechanisms, and the other end of the limit rod is provided with a slot, one end of the connecting rod is inserted into the slot, and the other end of the connecting rod is fixed to the side wall of the other protection mechanism;

[0011] Furthermore, the fixing mechanism is also provided with a locking device, which includes: a through hole arranged on the slot of the limiting rod, the through hole is connected to the slot, a rack is provided on the outer wall of one end of the connecting rod inserted into the slot, the rack is opposite to the through hole, and a first L-shaped plate is also provided on the limiting rod, one end of the rotating rod is rotatably fixedly connected to the first L-shaped plate through a bearing, and the other end of the rotating rod is provided with a gear, the gear passes through the through hole and meshes with the rack, one end of the second L-shaped plate is fixedly installed on the outer wall of the first L-shaped plate, and the other end of the second L-shaped plate is provided with a movable rod that passes through the second L-shaped plate, the movable rod is movably connected to the second L-shaped plate and is parallel to the rack; a clamping block is provided at one end of the movable rod close to the gear, and the clamping block is inserted in the tooth gap of the gear; the other end of the movable rod is a round block, and a second spring sleeved on the movable rod is provided between the round block and the second L-shaped plate, and the two ends of the second spring are respectively fixedly connected to the outer wall of the round block and the outer wall of the second L-shaped plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention provides a wind duct protection device for coal mine ventilation which is easy to assemble and disassemble. After the protection mechanism is put on, the air pumps on each of the devices are started. The air pumps inflate the airbags through the connecting pipes, so that the airbags expand and fix the protection mechanism on the wind duct to avoid separation, thereby enhancing the protection effect on the wind duct.

[0014] 2. The present invention provides a wind duct protective device for coal mine ventilation that is easy to disassemble and assemble. The sealing block is driven to move by pulling the pull rod. The sealing block does not seal the vent pipe, so that the gas in the air bag is released and the air bag is deflated, which is convenient for subsequent disassembly and the operation is simple and convenient.

[0015] 3. The present invention provides a wind duct protection device for coal mine ventilation which is easy to disassemble and assemble. The two protection mechanisms are respectively sleeved on the wind duct. When sleeved, the connecting rod is inserted into the slot, the rack is inserted into the through hole horizontally, and the gear is driven to rotate. When the connecting rod is fully inserted, the block is inserted into the tooth gap of the gear, thereby limiting the gear and preventing it from rotating. The installation of the two protection mechanisms can be completed, and the wind duct can be fully protected in combination with the protective cover.

[0016] 4. The present invention provides a wind duct protection device for coal mine ventilation that is easy to disassemble and assemble. The movable rod is driven to move by pulling the round block, and the movable rod drives the clamping block to disengage from the tooth gap of the gear, so that the gear is released from restriction, and the connecting rod can be pulled out respectively, so that the protection mechanism can be easily disassembled from the wind duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of the protective cover of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the protection mechanism of the present invention;

[0020] Figure 4 It is a structural cross-sectional view of the protection mechanism of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the sealing mechanism of the present invention;

[0022] Figure 6 for Figure 4 A magnified view of the structure at B in the middle;

[0023] Figure 7 It is a structural schematic diagram of the fixing mechanism and the locking device of the present invention;

[0024] Figure 8 for Figure 7 A magnified view of the structure at center A;

[0025] Fig. 9 It is a structural schematic diagram of the limiting rod of the present invention;

[0026] In the figure: 1, air cylinder; 11, protective sleeve; 2, first protective sub-sleeve; 3, second protective sub-sleeve; 4, limiting sleeve; 5, protective mechanism; 501, circular ring; 503, connecting rod; 504, limiting rod; 505, slot; 506, through hole; 507, rack; 508, gear; 509, rotating rod; 510, bearing; 511, first L-shaped plate; 512, second L-shaped plate; 513, movable rod; 514, block; 515, round block; 516, second spring; 6, tension mechanism; 601, groove; 602, air pump; 603, connecting pipe; 604, annular groove; 605, air bag; 606, deflation pipe; 7, sealing mechanism; 701, rectangular groove; 702, sealing block; 703, slider; 704, slide groove; 705, first spring; 706, pull rod. DETAILED DESCRIPTION

[0027] The technical solution adopted by the present invention is described in detail below in conjunction with the accompanying drawings and embodiments of the specification.

[0028] like Figure 1 As shown, the present invention is a wind duct protection device for coal mine ventilation that is easy to disassemble and assemble, comprising: a wind duct 1 and a protection sleeve 11 sleeved on the outer wall of the wind duct 1 and protection mechanisms 5 sleeved on the outer walls at both ends of the wind duct 1, the protection sleeve 11 is used to protect the outer wall of the wind duct 1, the two ends of the protection sleeve 11 are respectively pressed against the side walls of the corresponding protection mechanisms 5, the interior of the protection mechanism 5 is provided with an elastic mechanism 6 and a sealing mechanism 7, the elastic mechanism 6 is used to fix the protection mechanism 5 to the outer wall of the wind duct 1, and the sealing mechanism 7 is used to release the protection mechanism 5 and the outer wall of the wind duct 1 from a fixed state.

[0029] The present invention protects the outer wall of the wind tube 1 by sleeve-arranging a protective sleeve 11 matching the outer wall of the wind tube 1 on the outer wall of the wind tube 1, and protective mechanisms 5 are also provided on the outer walls at both ends of the wind tube 1. The protective sleeve 11 is fixed by the protective mechanisms 5 at both ends of the outer wall of the wind tube 1. At the same time, a tightening mechanism 6 and a sealing mechanism 7 are also provided inside the protective mechanism 5. The tightening mechanism 6 can fix the protective mechanism 5 on the outer wall of the end of the wind tube 1, and thereby clamp the protective sleeve 11 on the outer wall of the wind tube 1 between the two protective mechanisms 5, thus completing the installation of the wind tube protective device provided by the present invention;

[0030] When it is necessary to remove the protective cover 11 on the outer wall of the wind duct 1, it is only necessary to control the sealing mechanism 7 to release the protective mechanism 5 and the outer wall of the wind duct 1 from the fixed state, and then remove the protective mechanism 5 and the protective cover 11 from the outer wall of the wind duct 1 in turn to complete the removal of the wind duct protective device provided by the present invention.

[0031] In this embodiment, the shape of the protection mechanism 5 is preferably a circular ring 501 .

[0032] like Figure 2 As shown, as a preferred technical solution, the protective cover 11 can be formed by docking the first protective sub-cover 2 and the second protective sub-cover 3, that is, the protective cover 11 is set as a detachable structure, so that when the protective cover 11 is partially damaged, only the corresponding part needs to be replaced, avoiding waste of materials.

[0033] Furthermore, the outer wall of the first protective sub-cover 2 is fixedly connected to the limiting cover 4, and the left side of the second protective sub-cover 3 is arranged inside the limiting cover 4. By arranging the limiting cover 4, the connection between the first protective sub-cover 2 and the second protective sub-cover 3 can be strengthened.

[0034] Further, such as Figure 3-4 As shown, the tensioning mechanism 6 includes a groove 601 arranged on the outer surface of the ring 501 and an annular groove 604 arranged on the inner surface of the ring 501 and arranged along the entire circumference of the ring 501. An air bag 605 matching with it is arranged in the annular groove 604. An air pump 602 is arranged in the groove 601. The output end of the air pump 602 is connected to the air bag 605 located in the annular groove 604 through a connecting pipe 603. The air bag 605 is also provided with an air release pipe 606, which is blocked by a sealing mechanism 7.

[0035] Specifically, in this embodiment, the protective mechanism 5 inflates the air bag 605 disposed in the annular groove 604 on the inner surface thereof through the air pump 602 disposed in the groove 601 on the outer surface thereof, that is, the entire protective mechanism 5 is fixed to the outer wall of the wind tube 1 through the air bag 605 filled with air;

[0036] like Figure 4-6 As shown, the sealing mechanism 7 includes a rectangular groove 701 arranged on the outer surface of the ring 501 and a sealing block 702 slidably arranged in the rectangular groove 701. The sealing block 702 is provided with a pull rod 706 protruding out of the rectangular groove 701. The end surface of the sealing block 702 close to the airbag 605 is used to block the deflation pipe 606 of the airbag 605.

[0037] Specifically, in this embodiment, the end surface of the sealing block 702 in the rectangular groove 701 blocks the deflation pipe 606 of the airbag 605. When the pull rod 706 is pulled to drive the sealing block 702 to slide out of the rectangular groove 701, the end surface of the sealing block 702 will no longer block the deflation pipe 606 of the airbag 605, and the gas in the airbag 605 will be discharged from the deflation pipe 606, that is, the entire protective mechanism 5 and the outer wall of the wind tube 1 are released from the fixed state;

[0038] Furthermore, two sides of the rectangular groove 701 are symmetrically provided with slide grooves 704, and a first spring 705 is provided in the slide groove 704. Two sides of the sealing block 702 are provided with sliders 703 extending into the slide groove 704. One end of the first spring 705 is fixed in the slide groove 704, and the other end thereof is fixed on the slider 703.

[0039] Specifically, during the sliding process of the sealing block 702 out of the rectangular groove 701, the sliding groove 704 and the slider 703 limit the sliding of the sealing block 702, so that the sealing block 702 can stably slide in the rectangular groove 701. Meanwhile, during the sliding process of the sealing block 702, the sliders 703 on both sides of the sealing block 702 compress the first spring 705 in the sliding groove 704. When the sliding stops, the compressed first spring 705 can play a role in resetting the sealing block 702. That is, the sealing block 702 can be driven to reset by the first spring 705 to block the vent pipe 606 again.

[0040] Furthermore, the present invention further provides a fixing mechanism between the two protection mechanisms 5 at both ends of the outer wall of the wind tube 1, and the fixing mechanism is used to fix the two protection mechanisms 5 together, thereby further strengthening the integrity of the entire protection device;

[0041] like Figure 7-9 As shown, the fixing mechanism includes: a limiting rod 504 and a connecting rod 503 located between the two protection mechanisms 5 and parallel to the axis of the wind tube 1, one end of the limiting rod 504 is fixed to the side wall of one of the protection mechanisms 5, and the other end thereof is provided with a slot 505, one end of the connecting rod 503 is inserted into the slot 505, and the other end of the connecting rod 503 is fixed to the side wall of the other protection mechanism 5;

[0042] Specifically, in this embodiment, a limit rod 504 and a connecting rod 503 are provided between the two protection mechanisms 5, so that the protection mechanisms 5 located at both ends of the outer wall of the wind tube 1 are connected together, and the limit rod 504 and the connecting rod 503 are plugged in, which is also convenient for installation and disassembly.

[0043] In addition, as a preferred technical solution, in this embodiment, two fixing mechanisms are symmetrically arranged between the two protection mechanisms 5 .

[0044] Furthermore, on the basis of the plugging of the limiting rod 504 and the connecting rod 503, a locking device can be provided at the plugging place of the limiting rod 504 and the connecting rod 503 to further improve the firmness of the plugging of the limiting rod 504 and the connecting rod 503;

[0045] Specifically, the locking device includes: a through hole 506 opened on the slot 505 of the limiting rod 504, that is, the through hole 506 is connected to the slot 505, a rack 507 is provided on the outer wall of one end of the connecting rod 503 inserted into the slot 505, and the rack 507 is directly opposite to the through hole 506, and the limiting rod 504 is also provided with a first L-shaped plate 511, and the first L-shaped plate 511 is rotatably fixedly connected to one end of a rotating rod 509 through a bearing 510, and the other end of the rotating rod 509 is provided with a gear 508, and the gear 508 passes through the through hole 506 and meshes with the rack 507, and one end of a second L-shaped plate 512 is fixedly installed on the outer wall of the first L-shaped plate 511, and the other end of the second L-shaped plate 512 is provided with a movable rod 513 that penetrates the second L-shaped plate 512, and the movable rod 513 is movably connected to the second L-shaped plate 512 and is parallel to the rack 507;

[0046] A clamping block 514 is provided at one end of the movable rod 513 close to the gear 508. The clamping block 514 is inserted into the tooth gap of the gear 508. That is, the gear 508 can be limited by providing the clamping block 514. After being inserted into the tooth gap of the gear 508, the gear 508 can be prevented from rotating.

[0047] The other end of the movable rod 513 is a round block 515, and a second spring 516 is provided between the round block 515 and the second L-shaped plate 512 and is sleeved on the movable rod 513. The two ends of the second spring 516 are respectively fixedly connected to the outer wall of the round block 515 and the outer wall of the second L-shaped plate 512. That is, by setting the second spring 516, when an external force pulls the round block 515 to drive the block 514 to separate from the tooth gap of the gear 508, the second spring 516 is pulled at this time. After the external force disappears, the pulled second spring 516 will drive the block 514 to reset and reinsert it into the tooth gap of the gear 508.

[0048] That is, the locking of the plug-in connection between the limit rod 504 and the connecting rod 503 is achieved through the cooperation between the clamping block 514 and the tooth gap of the gear 508 .

[0049] The above is only an embodiment of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A wind tube protective device for coal mine ventilation that is easy to disassemble and assemble, comprising: A wind tube (1) and a protective sleeve (11) sleeved on the outer wall of the wind tube (1), and a protective mechanism (5) sleeved on the outer walls at both ends of the wind tube (1), characterized in that a tightening mechanism (6) and a sealing mechanism (7) are provided inside the protective mechanism (5), the tightening mechanism (6) is used to fix the protective mechanism (5) to the outer wall of the wind tube (1), and the sealing mechanism (7) is used to release the protective mechanism (5) from the fixed state with the outer wall of the wind tube (1).

2. The easily disassembled coal mine ventilation wind tube protection device according to claim 1 is characterized in that: The tensioning mechanism (6) comprises a groove (601) arranged on the outer surface of the protective mechanism (5) and an annular groove (604) arranged on the inner surface of the protective mechanism (5) and arranged along the circumference of the protective mechanism (5); an air bag (605) matching with the annular groove (604) is arranged in the annular groove (604); an air pump (602) is arranged in the groove (601); an output end of the air pump (602) is connected to the air bag (605) located in the annular groove (604) through a connecting pipe (603); an air release pipe (606) is also arranged on the air bag (605); and the air release pipe (606) is blocked by a sealing mechanism (7).

3. The easily disassembled coal mine ventilation wind tube protection device according to claim 2 is characterized in that: The sealing mechanism (7) comprises a rectangular groove (701) arranged on the outer surface of the protective mechanism (5) and a sealing block (702) slidably arranged in the rectangular groove (701); the sealing block (702) is provided with a pull rod (706) protruding out of the rectangular groove (701); the sealing block (702) is close to the end surface of the airbag (605) and is used to seal the deflation pipe (606) of the airbag (605).

4. The easily disassembled coal mine ventilation wind tube protection device according to claim 3 is characterized in that: The rectangular groove (701) is symmetrically provided with sliding grooves (704) on both sides, and a first spring (705) is provided in the sliding groove (704). The sealing block (702) is provided with sliding blocks (703) extending into the sliding groove (704) on both sides. One end of the first spring (705) is fixed in the sliding groove (704), and the other end thereof is fixed on the sliding block (703).

5. The easily disassembled coal mine ventilation wind tube protection device according to claim 4 is characterized in that: A fixing mechanism is also provided between the two protection mechanisms (5), the fixing mechanism comprising a limiting rod (504) and a connecting rod (503) located between the two protection mechanisms (5) and parallel to the axis of the wind tube (1); one end of the limiting rod (504) is fixed to the side wall of one of the protection mechanisms (5); the other end of the limiting rod (504) is provided with a slot (505); one end of the connecting rod (503) is inserted into the slot (505); the other end of the connecting rod (503) is fixed to the side wall of the other protection mechanism (5).

6. The easily disassembled coal mine ventilation wind tube protection device according to claim 5 is characterized in that: The fixing mechanism is also provided with a locking device, which comprises: a through hole (506) arranged on the slot (505) of the limiting rod (504), the through hole (506) being connected to the slot (505), a rack (507) being provided on the outer wall of one end of the connecting rod (503) inserted into the slot (505), the rack (507) being directly opposite to the through hole (506), and a first L-shaped plate (511) being provided on the limiting rod (504), and the first L-shaped plate (511) being rotatable via a bearing (510) One end of a rotating rod (509) is fixedly connected to the first L-shaped plate (511), and a gear (508) is provided at the other end of the rotating rod (509). The gear (508) passes through the through hole (506) and meshes with the rack (507). One end of a second L-shaped plate (512) is fixedly installed on the outer wall of the first L-shaped plate (511), and a movable rod (513) passing through the second L-shaped plate (512) is provided at the other end of the second L-shaped plate (512). The movable rod (513) is movably connected to the second L-shaped plate (512) and is parallel to the rack (507); A clamping block (514) is provided at one end of the movable rod (513) close to the gear (508), and the clamping block (514) is inserted into the tooth gap of the gear (508); the other end of the movable rod (513) is a round block (515), and a second spring (516) sleeved on the movable rod (513) is provided between the round block (515) and the second L-shaped plate (512), and the two ends of the second spring (516) are respectively fixedly connected to the outer wall of the round block (515) and the outer wall of the second L-shaped plate (512).

7. The easily disassembled wind tube protection device for coal mine ventilation according to claim 6 is characterized in that: The two fixing mechanisms are symmetrically arranged between the two protection mechanisms (5).

8. The easily disassembled wind tube protection device for coal mine ventilation according to claim 7 is characterized in that: The protection mechanism (5) is in the shape of a circular ring (501).

9. The easily disassembled wind tube protection device for coal mine ventilation according to claim 8 is characterized in that: The protective cover (11) is composed of a first protective sub-cover (2) and a second protective sub-cover (3) which are butt-jointed.

10. The easily disassembled wind tube protection device for coal mine ventilation according to claim 9, characterized in that: The outer wall of the first protective sub-cover (2) is fixedly connected to the limiting cover (4), and the second protective sub-cover (3) extends into the interior of the limiting cover (4) and butts with the first protective sub-cover (2).

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