Hard connection device for opening and closing air door

Abstract

The utility model provides a hard connecting device for opening and closing an air door, which relates to the technical field of air door control of a coal mine air shaft, and comprises an air door control cylinder, a first control connecting rod, a second control connecting rod and a handle, a first control connecting rod and a second control connecting rod are detachably installed on the sleeve, the handle is detachably installed on the back face of the air door, one end of the first control connecting rod is located above the handle, one end of the second control connecting rod is located below the handle, and the first control connecting rod is connected with one end of the second control connecting rod through a connecting piece. The air door control air cylinder, the first control connecting rod, the second control connecting rod and the handle are arranged, one end of the first control connecting rod is connected with one end of the second control connecting rod through the connecting piece, a hard connecting device used for opening and closing the air door can be formed, and opening and closing of the air door are controlled through retraction and extension of the air cylinder. The control process has the advantages of high stability and high safety.

Description

Technical Field

[0001] The utility model relates to the technical field of air door control in coal mines, in particular to a hard connection device for opening and closing air doors. Background Technique

[0002] The "Coal Mine Safety Regulations" stipulate that in each connecting roadway between the intake and return air shafts and between the main intake and return airways, permanent air walls must be built, and two interlocked forward air doors and two reverse air doors must be installed in each connecting roadway that needs to be used.

[0003] At present, in the existing technology, most of the underground air doors use locking steel wires to directly pull two air doors to achieve opening and closing. Due to the frequent use of the locking steel wires, the locking steel wires are prone to breakage, and personnel are required to reinstall the steel wires. Moreover, due to the large number of underground air doors, the maintenance workload is large, and the material waste is serious. Therefore, the utility model proposes a hard connection device for opening and closing air doors to solve the deficiencies in the existing technology. Content of the Utility Model

[0004] In view of the above problems, the purpose of the utility model is to provide a hard connection device for opening and closing air doors. By setting an air door control cylinder, a first control link, a second control link and a handle, and connecting one end between the first control link and the second control link through a connecting piece, a hard connection device for opening and closing air doors can be formed. The opening and closing of the air door are controlled by the retraction and extension of the cylinder, and the control process has the advantages of high stability and safety.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A hard connection device for opening and closing air doors, including an air door control cylinder, a first control link, a second control link and a handle. An assembly fixing part is arranged at the tail end of the air door control cylinder. The air door control cylinder is installed on the assembly wall through the assembly fixing part. An installation seat is arranged at the output end of the air door control cylinder. A rotating seat is arranged on the installation seat. A rotating groove is arranged on the rotating seat. A rotating shaft is arranged inside the rotating groove. A sleeve is arranged at the upper end of the rotating shaft. The first control link and the second control link are detachably installed on the sleeve. The handle is detachably installed on the back of the air door. One end of the first control link is located above the handle, and one end of the second control link is located below the handle. One end between the first control link and the second control link is connected through a connecting piece.

[0007] Further improvement lies in that: the assembly fixing part includes an assembly back plate and assembly bolts. The assembly back plate is arranged at the tail end of the air door control cylinder. Assembly bolts are arranged on the assembly back plate. There are multiple assembly bolts. The air door control cylinder is installed on the assembly wall through the assembly bolts on the assembly back plate.

[0008] A further improvement lies in that: a dust cover is provided on the outer wall of the lower end of the sleeve; connection rings are provided at one ends of the first control link and the second control link, the connection rings are sleeved outside the sleeve, fixing bolts are provided on the connection rings, and the connection rings are detachably connected to the sleeve through the fixing bolts.

[0009] A further improvement lies in that: the first control link and the second control link have the same structure and both include a first end solid tube, a second end solid tube and a middle hollow tube. The first end solid tube and the second end solid tube are symmetrically arranged. The middle hollow tube is arranged between the first end solid tube and the second end solid tube. Adjusting holes are provided on the middle hollow tube, and there are multiple adjusting holes. Adjusting bolts are provided in the adjusting holes. One ends of the first end solid tube and the second end solid tube are respectively inserted into both ends of the middle hollow tube, and the adjusting bolts connect one ends of the first end solid tube and the second end solid tube.

[0010] A further improvement lies in that: supports are symmetrically provided on both side walls of the air door control cylinder. Telescopic support legs are provided inside the supports through a turning shaft. Magnetic attraction seats are provided on both side walls of the air door control cylinder. One end of the telescopic support leg is magnetically fixed to the magnetic attraction seat after rotating around the turning shaft by a certain angle.

[0011] A further improvement lies in that: the connecting member includes a connecting pin and a nut. Pin holes are provided at one ends of the second end solid tubes of the first control link and the second control link. The connecting pin penetrates through the two pin holes, and nuts are threadedly connected to both the upper end and the lower end of the connecting pin.

[0012] The beneficial effects of the present utility model are as follows: by providing an air door control cylinder, a first control link, a second control link and a handle, and connecting one ends of the first control link and the second control link through a connecting member, a hard connection device for opening and closing the air door can be formed. The opening and closing of the air door are controlled by the retraction and extension of the cylinder. The control process has the advantages of high stability and safety. Since one ends of the first control link and the second control link are connected to the handle installed on the back of the air door through a connecting member to form a movable structure, the connection between the hard connection device of the present utility model and the air door can be separated by disassembling the connecting member. When it is impossible to open and close the air door using the hard connection device in case of special circumstances, the air door can be manually opened, thereby improving the safety of controlling the opening and closing of the underground air door. Description of the Drawings

[0013] Figure 1 It is a three-dimensional structure diagram of the present utility model (in the state of controlling the closing of the air door);

[0014] Figure 2 It is a schematic structural principle diagram of the present utility model (in the state of controlling the opening of the air door);

[0015] Figure 3 Schematic three-dimensional view of the assembly fixing part structure of the present utility model;

[0016] Figure 4 Schematic three-dimensional view of the first control link and the second control link structures of the present utility model;

[0017] Figure 5 Exploded schematic view of the installation structure of the rotating shaft of the present utility model;

[0018] Figure 6 Exploded schematic view of the connecting part structure of the present utility model.

[0019] Wherein: 1, air damper control cylinder; 2, first control link; 3, second control link; 4, handle; 5, assembly fixing part; 501, assembly back plate; 502, assembly bolt; 6, mounting seat; 7, rotating seat; 8, rotating shaft; 9, sleeve; 10, connecting part; 1001, connecting pin; 1002, nut; 11, dust cover; 12, connecting ring; 13, fixing bolt; 14, first end solid tube; 15, second end solid tube; 16, middle hollow tube; 17, adjustment hole; 18, adjustment bolt; 19, support; 20, turning shaft; 21, telescopic support leg; 22, magnetic attraction seat; 23, pin hole. Specific embodiments

[0020] To deepen the understanding of the present utility model, the following will further describe the present utility model in conjunction with embodiments. These embodiments are only used to explain the present utility model and do not limit the protection scope of the present utility model.

[0021] According to Figures 1-6 As shown, this embodiment provides a hard connection device for opening and closing an air damper, including an air damper control cylinder 1, a first control link 2, a second control link 3, and a handle 4. The tail end of the air damper control cylinder 1 is provided with an assembly fixing part 5. The air damper control cylinder 1 is installed on the assembly wall through the fixing part. The output end of the air damper control cylinder 1 is provided with a mounting seat 6. The mounting seat 6 is provided with a rotating seat 7. The rotating seat 7 is provided with a rotating groove. The rotating shaft 8 is arranged inside the rotating groove. The upper end of the rotating shaft 8 is provided with a sleeve 9. The first control link 2 and the second control link 3 are detachably installed on the sleeve 9. The handle 4 is detachably installed on the back of the air damper. One end of the first control link 2 is above the handle 4, and one end of the second control link 3 is below the handle 4. One ends of the first control link 2 and the second control link 3 are connected by a connecting part 10.

[0022] When the on-off air door hard connection device of the present utility model is in operation, when the air door is in the closed state, the output end of the air door control cylinder 1 is in the reset state. When it is necessary to open the air door, the output end of the air door control cylinder 1 is controlled to extend. During this process, the rotating shaft 8 starts to rotate under the action of the first control link 2 and the second control link 3, so as to realize that the air door is pulled open by the first control link 2 and the second control link 3 during the extension of the output end of the air door control cylinder 1.

[0023] The assembly fixing part 5 includes an assembly back plate 501 and an assembly bolt 502. The tail end of the air door control cylinder 1 is provided with an assembly back plate 501, and the assembly back plate 501 is provided with assembly bolts 502. There are multiple assembly bolts 502, and the air door control cylinder 1 is installed on the assembly wall through the assembly bolts 502 on the assembly back plate 501. By setting the assembly fixing part 5, the convenient disassembly of the device of the present utility model can be realized.

[0024] A dust-proof cover 11 is provided on the outer wall of the lower end of the sleeve 9. One end of each of the first control link 2 and the second control link 3 is provided with a connecting ring 12. The connecting ring 12 is sleeved outside the sleeve 9, and a fixing bolt 13 is provided on the connecting ring 12. The connecting ring 12 is detachably connected to the sleeve 9 through the fixing bolt 13. The first control link 2 and the second control link 3 have the same structure and both include a first end solid tube 14, a second end solid tube 15 and a middle hollow tube 16. The first end solid tube 14 and the second end solid tube 15 are symmetrically arranged, and the middle hollow tube 16 is arranged between the first end solid tube 14 and the second end solid tube 15. An adjusting hole 17 is provided on the middle hollow tube 16, and there are multiple adjusting holes 17. An adjusting bolt is provided in the adjusting hole 17. One end of each of the first end solid tube 14 and the second end solid tube 15 is inserted into both ends of the middle hollow tube 16, and the adjusting bolt 18 connects one end of the first end solid tube 14 and the second end solid tube 15. Through the above settings, the lengths of the first control link 2 and the second control link 3 can be adjusted, so that the on-off air door hard connection device of the present utility model can be installed and used in cooperation with different air doors, and the first control link 2 and the second control link 3 can be integrally disassembled and replaced.

[0025] On both side walls of the air door control cylinder 1, supports 19 are symmetrically arranged. Inside the supports 19, telescopic support legs 21 are arranged through a turning shaft 20. Magnetic absorption seats 22 are arranged on both side walls of the air door control cylinder 1. After the telescopic support legs 21 rotate around the turning shaft 20 by a certain angle, one end of each telescopic support leg 21 is magnetically fixed to the magnetic absorption seat 22. In the utility model, by arranging the telescopic support legs 21, when the air door control cylinder 1 is installed on an assembled wall through the assembly bolts 502 on the assembly back plate 501, the four telescopic support legs 21 can be turned out to support the air door control cylinder 1, so as to facilitate the fixation of the air door control cylinder 1.

[0026] The connecting member 10 includes a connecting pin 1001 and nuts 1002. One end of the solid tube 15 at the second end of the first control link 2 and the second control link 3 is provided with a pin hole 23. The connecting pin 1001 passes through the two pin holes 23, and nuts 1002 are threadedly connected to the upper and lower ends of the connecting pin 1001 respectively. After the connecting pin 1001 is inserted into the pin hole 23 at one end of the solid tube 15 at the second end of the first control link 2 and the second control link 3, the nuts 1002 are used to limit both ends of the connecting pin 1001 to prevent the connecting pin 1001 from disengaging from the pin hole 23.

[0027] In the utility model, the air circuits of the air door control cylinders 1 of the same set of forward and reverse air doors are connected in series, and the air circuits between the two air doors are connected in parallel. When the first forward air door is opened, the reverse air door will also be opened accordingly. At this time, the second air door will be locked due to the short circuit of the air circuit, and there is no power source for the second air door, so neither the forward air door nor the reverse air door can be opened. Thus, it is avoided that the two air doors are opened simultaneously due to misoperation by personnel.

[0028] In the utility model, by arranging the air door control cylinder 1, the first control link 2, the second control link 3 and the handle 4, and connecting one end between the first control link 2 and the second control link 3 through the connecting member 10, a hard connection device for opening and closing the air door can be formed. The opening and closing of the air door are controlled by the retraction and extension of the cylinder. The control process has the advantages of high stability and safety. Since one end between the first control link 2 and the second control link 3 forms a movable structure with the handle 4 installed on the back of the air door through the connecting member 10, by disassembling the connecting member 10, the connection between the hard connection device of the utility model and the air door can be separated. When it is impossible to open and close the air door by using the hard connection device in case of special circumstances, the air door can be manually opened, so as to improve the safety of the control of the underground air door opening and closing.

[0029] The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A device for hard connection of opening and closing damper, characterized in that: The invention comprises a damper control cylinder (1), a first control link (2), a second control link (3) and a handle (4). The tail end of the damper control cylinder (1) is provided with an assembly fixing part (5). The damper control cylinder (1) is installed on the assembly wall through the assembly fixing part. The output end of the damper control cylinder (1) is provided with a mounting seat (6). The mounting seat (6) is provided with a rotating seat (7). The rotating seat (7) is provided with a rotating groove. A rotating shaft (8) is provided inside the rotating groove. A sleeve (9) is provided at the upper end of the rotating shaft (8). The sleeve (9) is detachably provided with the first control link (2) and the second control link (3). The handle (4) is detachably installed on the back of the damper. One end of the first control link (2) is located above the handle (4). One end of the second control link (3) is located below the handle (4). One end of the first control link (2) and one end of the second control link (3) are connected by a connecting member (10).

2. A damper opening and closing hard connection device according to claim 1, characterized in that: The assembly fixing member (5) comprises an assembly back plate (501) and assembly bolts (502); the rear end of the damper control cylinder (1) is provided with an assembly back plate (501); the assembly back plate (501) is provided with assembly bolts (502); a plurality of assembly bolts (502) are provided; the damper control cylinder (1) is mounted on the assembly wall via the assembly bolts (502) on the assembly back plate (501).

3. A damper opening and closing hard connection device according to claim 1, characterized in that: A dust cover (11) is provided on the outer wall of the lower end of the sleeve (9); one end of each of the first control link (2) and the second control link (3) is provided with a connecting ring (12); the connecting ring (12) is sleeved on the outer side of the sleeve (9); a fixing bolt (13) is provided on the connecting ring (12); the connecting ring (12) is detachably connected to the sleeve (9) via the fixing bolt (13).

4. A damper opening and closing hard connection device according to claim 1, characterized in that: The first control link (2) and the second control link (3) have the same structure, and both comprise a first end solid tube (14), a second end solid tube (15) and an intermediate hollow tube (16); the first end solid tube (14) and the second end solid tube (15) are symmetrically arranged; the intermediate hollow tube (16) is arranged between the first end solid tube (14) and the second end solid tube (15); an adjustment hole (17) is provided on the intermediate hollow tube (16); a plurality of adjustment holes (17) are provided; an adjustment bolt is provided in the adjustment hole (17); one end of the first end solid tube (14) and the second end solid tube (15) are respectively inserted into two ends of the intermediate hollow tube (16); and the adjustment bolt (18) connects one end of the first end solid tube (14) and one end of the second end solid tube (15).

5. The device for hard connection of opening and closing dampers according to claim 1, characterized in that: Supports (19) are symmetrically arranged on both side walls of the damper control cylinder (1), telescopic support legs (21) are arranged inside the support (19) via a turning axis (20), magnetic seats (22) are arranged on both side walls of the damper control cylinder (1), and one end of the telescopic support leg (21) is magnetically fixed to the magnetic seat (22) after turning around the turning axis (20) to an angle.

6. A damper opening and closing hard connection device according to claim 4, characterized in that: The connecting member (10) comprises a connecting pin (1001) and a nut (1002); a pin hole (23) is provided at one end of the second end solid tube (15) of the first control link (2) and the second control link (3); the connecting pin (1001) passes through the two pin holes (23); and the upper and lower ends of the connecting pin (1001) are both threadedly connected with nuts (1002).

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