Pressure reduction power assisting device for regulating and controlling damper door

Abstract

The invention relates to the technical field of roadway baffle door regulation and control, in particular to an air door baffle door regulation and control pressure reduction power assisting device which comprises two bases, the two bases are installed on the inner sides close to two baffle doors correspondingly, two bases are fixedly installed at the tops of the bases, and rotating shafts are movably connected to the inner circle centers of the bases through bearings; a first limiting disc and a second limiting disc are fixedly arranged on the outer side of the rotating shaft in a sleeving mode, the first limiting disc is located above the second limiting disc, corresponding limiting grooves are formed in the outer side of the first limiting disc and the outer side of the second limiting disc, and I-shaped sliding blocks are slidably connected into the limiting grooves in the outer side of the first limiting disc and the limiting grooves in the outer side of the second limiting disc. Compared with the prior art, intelligent switching of the transmission ratio is achieved through cooperation of the multi-track cambered surface block and the electric push rod, the opening and closing efficiency and labor saving performance of the air door under different air pressures are remarkably improved, energy consumption is reduced, the service life of equipment is prolonged, and the air door is particularly suitable for the high-air-pressure roadway environment.

Description

Technical Field

[0001] The present invention relates to the technical field of roadway baffle door regulation, and specifically to a decompression and boosting device for regulating a damper baffle door. Background Technique

[0002] The damper baffle door in the roadway is mainly used to adjust and control the air flow in the roadway to ensure the efficient operation of the ventilation system. By adjusting the opening degree of the baffle door, the air volume and air flow direction can be accurately controlled to meet the ventilation requirements of different working areas.

[0003] When it is necessary to isolate a specific area, closing the baffle door can effectively block the air flow, prevent the accumulation of harmful gases such as gas, and reduce potential safety hazards. In addition, in case of emergency, the baffle door can be quickly closed to form a safety barrier, providing guarantee for personnel evacuation and accident handling. It is an important device for realizing safe and efficient operation in the mine ventilation system.

[0004] However, traditional equipment relies on a fixed transmission ratio design and cannot dynamically adjust the transmission mode according to the direction of roadway wind pressure. When facing the wind, it cannot utilize the air flow speed increase, resulting in low efficiency. When against the wind, the torque is insufficient and high energy consumption is required for driving. Moreover, it lacks the ability of wind pressure perception and intelligent regulation, requires manual intervention and has high energy consumption. Especially in the case of against the wind, the motor is overloaded for a long time. These defects lead to great limitations of the existing device in terms of labor saving, stability and energy consumption control, and it is difficult to meet the high-efficiency regulation requirements especially in the high wind pressure roadway environment. Summary of the Invention

[0005] The purpose of the present invention is to provide a decompression and boosting device for regulating a damper baffle door to solve the problems mentioned in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A decompression and boosting device for regulating a damper baffle door, including two bases, which are respectively installed inside near two baffle doors. At the top of the base, two pedestals are fixedly installed. At the center of the inner circle of the pedestal, a rotating shaft is movably connected through a bearing. On the outer side of the rotating shaft, a first limiting disc and a second limiting disc are fixedly sleeved, and the first limiting disc is located above the second limiting disc.

[0007] Corresponding limiting grooves are respectively opened on the outer sides of the first limiting disc and the second limiting disc. In the limiting grooves on the outer sides of the first limiting disc and the second limiting disc, I-shaped sliders are slidably connected, and a first sliding seat and a second sliding seat are fixedly connected through the corresponding I-shaped sliders. One adjacent end of the first sliding seat and the second sliding seat is fixedly connected with a multi-track arc-shaped block.

[0008] Further, a frame is fixedly installed on the outer side of the base. The bottom of the frame is fixedly connected with an electric push rod, and a housing is installed on the outer side of the electric push rod. The output end of the electric push rod is fixedly connected with a cylindrical driving block. The top end cross-section of the rotating shaft is a regular polygon, and the top end of the rotating shaft is slidably connected with a sliding sleeve in a sleeved manner.

[0009] Further, a linkage frame is sleeved on the outer side of the sliding sleeve. The bottom end of the linkage frame is rotatably connected with a driving block one. On the top of the limiting disc one and on both sides of the limiting groove, brackets are fixedly installed. The interior of the brackets is movably connected with a rotating sleeve through bearings, and a connecting rod is fixedly connected to the outer side of the rotating sleeve;

[0010] The bottom end of the connecting rod is rotatably connected with a driving block two, and the end of the driving block two away from the connecting rod is rotatably connected with a multi-track arc-shaped block.

[0011] Further, a shaft sleeve is fixedly installed on the top of the sliding sleeve. The cylindrical driving block is fitted with the inner cavity of the shaft sleeve. The bottom of one of the limiting discs two on the top of the base is fixedly connected with a toothed ring, and the bottom of the toothed ring is in contact with the top of the base. An installation groove is opened at the top of the base and directly below one of the bases. A motor for driving the rotating shaft to rotate is installed in the installation groove.

[0012] Further, a top seat is installed directly above the base, and the top seat and the base are fixedly connected by multiple groups of support columns.

[0013] Further, corresponding positions on the adjacent sides of the base and the top seat are fixedly connected with guiding frames. One of the two side surfaces of each guiding frame is respectively provided with a chute one and a chute two. A sliding plate is slidably connected in the guiding frame, and the two corresponding sliding plates are fixedly connected by a connecting column.

[0014] Further, a driving arm is rotatably connected to the outer side of the sliding plate. The corresponding positions of the base and the top seat are movably connected with a middle transfer arm through bearings. One end of the driving arm is rotatably connected with the middle transfer arm. An installation frame is fixedly connected between the two middle transfer arms in the vertical direction. The installation frame is fixedly connected with a baffle door.

[0015] Further, a toothed plate meshing with the toothed ring is slidably connected in the chute two, and the toothed plate is fixedly connected with the side wall of the sliding plate.

[0016] Further, the correspondingly opened limiting grooves are respectively arranged in an annular array with the centers of the limiting disc one and the limiting disc two as the centers. A belt is connected to the outer side of the multi-track arc-shaped block.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. When the present invention is in use, through the collaborative design of the multi-track arc-shaped block and the electric push rod, labor-saving regulation of the air door under different air pressure environments is achieved. The device drives the sliding sleeve to move vertically along the rotating shaft through the electric push rod, controls the unfolding degree of the multi-track arc-shaped block, and dynamically adjusts the belt transmission radius: when facing the wind, the multi-track arc-shaped block with the toothed ring is contracted to a small gear, and the other base is extended to a large gear, so as to increase the opening speed with a transmission ratio > 1 and assist with the wind force; when facing against the wind, the multi-track arc-shaped block corresponding to the toothed ring is extended to a large gear, and the contraction of the other base is a small gear, so as to amplify the torque with a transmission ratio < 1 to overcome the wind resistance. At the same time, the meshing of the toothed ring and the toothed plate drives the sliding plate to slide along the guide frame, and the rotational motion is converted into the rotation of the baffle door through the driving arm and the transfer arm, ensuring a smooth and labor-saving opening process.

[0019] 2. In addition, the multi-track arc-shaped block automatically disengages from the belt contact in the normally closed / opened state, reducing the continuous tension loss of the elastic belt and extending the service life. The device significantly reduces the energy consumption of the air door operation, improves the regulation flexibility and equipment durability through the intelligent switching of the transmission ratio and the mechanical structure linkage, and is especially suitable for the high air pressure roadway environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] For the convenience of those skilled in the art to understand, the present invention will be further described below in conjunction with the drawings;

[0021] Figure 1 is the overall structure schematic diagram of the present invention;

[0022] Figure 2 is the structure schematic diagram of the connecting column in the present invention;

[0023] Figure 3 is the structure schematic diagram of the offset sliding plate in the present invention;

[0024] Figure 4 is the structure schematic diagram of the electric push rod in the present invention;

[0025] Figure 5 is the structure schematic diagram of the first limit disk and the second limit disk in the present invention;

[0026] Figure 6 is the structure schematic diagram of the connecting rod in the present invention;

[0027] Figure 7 is the structure schematic diagram of the bracket in the present invention;

[0028] Figure 8 is the cross-sectional view of the connection state of the cylindrical drive block, the shaft sleeve, the sliding sleeve and the rotating shaft in the present invention.

[0029] Reference numerals: 1, base; 2, pedestal; 3, frame; 301, first limiting disc; 302, second limiting disc; 401, first sliding seat; 402, second sliding seat; 403, multi-track arc block; 5, electric push rod; 6, cylindrical drive block; 7, rotating shaft; 8, sliding sleeve; 9, linkage frame; 101, first drive block; 102, second drive block; 103, connecting rod; 11, bracket; 12, bushing; 13, toothed ring; 14, top seat; 15, guide frame; 16, sliding plate; 17, connecting column; 181, drive arm; 182, transfer arm; 19, mounting frame; 20, baffle door; 21, toothed plate; 22, belt. Detailed implementation manners

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment 1: As Figures 1 - 8 shown, a decompression and boosting device for regulating a damper baffle door includes two bases 1, and the two bases 1 are respectively installed inside near the two baffle doors 20. Two pedestals 2 are fixedly installed on the top of the base 1. A rotating shaft 7 is movably connected to the center of the inner circle of the pedestal 2 through a bearing. A first limiting disc 301 and a second limiting disc 302 are sleeved and fixed on the outer side of the rotating shaft 7, and the first limiting disc 301 is located above the second limiting disc 302;

[0032] Corresponding limiting grooves are provided on the outer sides of the first limiting disc 301 and the second limiting disc 302. I-shaped sliders are slidably connected in the limiting grooves on the outer sides of the first limiting disc 301 and the second limiting disc 302, and a first sliding seat 401 and a second sliding seat 402 are fixedly connected through the corresponding I-shaped sliders. One adjacent end of the first sliding seat 401 and the second sliding seat 402 is fixedly connected with a multi-track arc block 403;

[0033] As Figure 6 shown, the multi-track arc block 403 has two tracks for belt 22 transmission. When one of the tracks is damaged, it can be quickly switched to the other track for transmission. The corresponding limiting grooves are respectively arranged in an annular array with the centers of the first limiting disc 301 and the second limiting disc 302 as the centers. The outer side of the multi-track arc block 403 is connected with a belt 22.

[0034] A frame 3 is fixedly installed on the outer side of the base 2. The bottom of the frame 3 is fixedly connected to an electric push rod 5, and a housing is installed on the outer side of the electric push rod 5. The output end of the electric push rod 5 is fixedly connected to a cylindrical drive block 6. The top cross-section of the rotating shaft 7 is a regular polygon, and the top of the rotating shaft 7 is slidably connected in a sleeved manner with a sliding sleeve 8.

[0035] A linkage frame 9 is sleeved on the outer side of the sliding sleeve 8. The bottom end of the linkage frame 9 is rotatably connected to a drive block one 101. On the top of the limit disk one 301 and on both sides of the limit groove, brackets 11 are fixedly installed. A rotating sleeve is movably connected inside the brackets 11 through bearings, and a connecting rod 103 is fixedly connected to the outer side of the rotating sleeve.

[0036] The bottom end of the connecting rod 103 is rotatably connected to a drive block two 102. One end of the drive block two 102 away from the connecting rod 103 is rotatably connected to a multi-track arc-shaped block 403. A bushing 12 is fixedly installed on the top of the sliding sleeve 8, and the cylindrical drive block 6 is in fit with the inner cavity of the bushing 12. It should be explained here that the multi-track arc-shaped blocks 403 are arranged in a circular array centered on the center of the limit disk one 301.

[0037] When all the multi-track arc-shaped blocks 403 are in contact with each other, it is a complete circle at this time. When the multi-track arc-shaped blocks 403 move outward in multiple directions from the center of the rotating shaft 7 and disperse, the elastic belt 22 will be driven to expand outward at this time. The multi-group multi-track arc-shaped blocks 403 on the tops of the two bases 2 on the same base 1 are all controlled by the corresponding electric push rods 5, so as to realize the independent control of the expansion of the multi-track arc-shaped blocks 403 on the top of each base 2.

[0038] A gear ring 13 is fixedly connected to the bottom of one of the limit disks two 302 on the top of the base 1, and the bottom of the gear ring 13 is in contact with the top of the base 2. An installation groove is opened at the top of the base 1 and directly below one of the bases 2. A motor for driving the rotation of the rotating shaft 7 is installed in the installation groove. It should be explained here that the motor is not installed below the base 2 under the gear ring 13, but below the other base 2.

[0039] Embodiment 2: A top seat 14 is installed directly above the base 1, and the top seat 14 and the base 1 are fixedly connected by multiple support columns.

[0040] Guide frames 15 are fixedly connected to the corresponding positions on the adjacent sides of the base 1 and the top seat 14. A sliding groove one and a sliding groove two are respectively opened on two of the side surfaces of the guide frame 15. A sliding plate 16 is slidably connected in the guide frame 15, and the two corresponding sliding plates 16 are fixedly connected by a connecting column 17.

[0041] A drive arm 181 is rotatably connected to the outer side of the skateboard 16. The corresponding positions of the base 1 and the top seat 14 are both movably connected with a transfer arm 182 through bearings. One end of the drive arm 181 is rotatably connected to the transfer arm 182. A mounting frame 19 is fixedly connected between two transfer arms 182 corresponding to two perpendicular directions. The mounting frame 19 is fixedly connected to the baffle door 20. A toothed plate 21 meshing with the toothed ring 13 is slidably connected in the second chute, and the toothed plate 21 is fixedly connected to the side wall of the skateboard 16.

[0042] Combining Embodiment 1 and Embodiment 2, the working principle of the present invention is as follows:

[0043] Initial state and power transmission system: Before the device starts, the two baffle doors 20 are respectively connected to the transfer arms 182 of the base 1 and the top seat 14 through the mounting frame 19. Two pedestals 2 on the top of the base 1 are installed with a limit disk 301 and a limit disk 302 through a rotating shaft 7. A multi-track arc block 403 is connected between the two pedestals 2 through a belt 22. The electric push rod 5 is in a contracted state. The sliding sleeve 8 is located at the top end of the rotating shaft 7. The multi-track arc blocks 403 are closely attached to form a complete circle in the limit groove, and the belt 22 is loose.

[0044] When the motor drives the rotating shaft 7 to rotate, the limit disk 301 and the limit disk 302 rotate synchronously, driving the multi-track arc block 403 to rotate. The electric push rod 5 can push the shaft sleeve 12 through the cylindrical drive block 6, so that the sliding sleeve 8 slides down along the rotating shaft 7. The sliding sleeve 8 drives the linkage frame 9 to descend. The drive block 101 forces the connecting rod 103 to deflect around the bracket 11. The drive block 202 pushes the multi-track arc block 403 to expand outward along the limit groove, and the belt 22 is tensioned. On the contrary, when the electric push rod 5 retracts, the multi-track arc block 403 contracts under the action of the spring force, and the belt 22 is loose.

[0045] By controlling the vertical position of the sliding sleeve 8, the device can dynamically adjust the expansion degree of the multi-track arc block 403, thereby changing the transmission radius of the belt 22;

[0046] Air door opening assistance mechanism - downwind opening mode: When the air flow direction in the roadway is consistent with the opening direction of the baffle door 20, the electric push rod 5 pushes the sliding sleeve 8 to descend, so that the multi-track arc block 403 corresponding to the limit disk 302 with the toothed ring 13 contracts into a small gear driven wheel, and the multi-track arc block 403 of the other pedestal 2 expands into a large gear driving wheel. The motor drives the rotating shaft 7 to drive the driven wheel through the belt 22 with a transmission ratio > 1, increasing the opening speed of the baffle door 20. At this time, the toothed ring 13 meshes with the toothed plate 21, driving the skateboard 16 to slide along the first chute of the guide frame 15, and synchronously moving the skateboard 16 of the top seat 14 through the connecting column 17.

[0047] The skateboard 16 pulls the driving arm 181, and the driving arm 181 pushes the transfer arm 182 to deflect around the bearing. The mounting bracket 19 converts the rotation into the horizontal deflection of the baffle door 20, and uses wind assistance to achieve quick and labor-saving opening.

[0048] Upwind opening mode: If the air flow direction is opposite to the opening direction, the electric push rod 5 controls the sliding sleeve 8 to rise, so that the multi-track arc surface block 403 corresponding to the toothed ring 13 expands into a large gear driven wheel, and the multi-track arc surface block 403 of the other base 2 contracts into a small gear driving wheel. The motor drives the rotating shaft 7 through the belt 22 to drive the driven wheel with a transmission ratio <1, amplifying the torque to overcome the wind resistance. After the toothed ring 13 meshes with the toothed plate 21, the skateboard 16 slides reversely along the second chute, and the driving arm 181 pushes the transfer arm 182 to deflect slowly. The mounting bracket 19 drives the baffle door 20 to push outwards. Since the transmission radius increases after the multi-track arc surface block 403 expands, the elastic deformation of the belt 22 absorbs part of the impact force, ensuring smooth opening under high resistance.

[0049] When the baffle door 20 is normally closed or normally open, the two groups of multi-track arc surface blocks 403 on the top of the same base 1 are close to each other, prompting them to disengage from the belt 22, keeping the belt 22 in a natural state of tightness and extending its service life.

[0050] The above content is only an example and description of the structure of the present invention. Those skilled in the art of this technology make various modifications or supplements to the described specific embodiments or use similar ways to replace them. As long as they do not deviate from the structure of the invention or exceed the scope defined by this claim book, they should all belong to the protection scope of the present invention.

[0051] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0052] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not elaborate all the details, nor limit the invention to only the specific implementation manners. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claim book and its full scope and equivalents.

Claims

1. A pressure reducing booster device for regulating a damper door, comprising two bases (1), the two bases (1) being respectively mounted on the inner sides of two damper doors (20), characterized in that: Two bases (2) are fixedly mounted on the top of the base (1); a rotating shaft (7) is movably connected to the inner center of the base (2) via a bearing; a first limiting plate (301) and a second limiting plate (302) are fixedly sleeved on the outer side of the rotating shaft (7); and the first limiting plate (301) is located above the second limiting plate (302); The outer sides of the limiting plate 1 (301) and the limiting plate 2 (302) are both provided with corresponding limiting grooves, and the limiting grooves on the outer sides of the limiting plate 1 (301) and the limiting plate 2 (302) are both slidably connected with an I-shaped slider, and the sliding seat 1 (401) and the sliding seat 2 (402) are fixedly connected through the corresponding I-shaped sliders, and the adjacent ends of the sliding seat 1 (401) and the sliding seat 2 (402) are fixedly connected with a multi-track arc surface block (403).

2. A pressure reducing booster device for regulating a damper door according to claim 1, characterized in that: A frame (3) is fixedly mounted on the outer side of the base (2); an electric push rod (5) is fixedly connected to the bottom of the frame (3); a cover is mounted on the outer side of the electric push rod (5); a cylindrical driving block (6) is fixedly connected to the output end of the electric push rod (5); the top end of the rotating shaft (7) has a regular polygonal cross section; and a sliding sleeve (8) is slidably connected to the top end of the rotating shaft (7) in a sleeve-type manner.

3. A pressure reducing booster device for regulating a damper door according to claim 2, characterized in that: The outer side of the sliding sleeve (8) is provided with a linkage frame (9), the bottom end of the linkage frame (9) is rotatably connected to a driving block (101), a bracket (11) is fixedly installed on the top of the limiting plate (301) and on both sides of the limiting groove, the interior of the bracket (11) is movably connected to a rotating sleeve via a bearing, and the outer side of the rotating sleeve is fixedly connected to a connecting rod (103); The bottom end of the connecting rod (103) is rotatably connected to a second driving block (102), and one end of the second driving block (102) away from the connecting rod (103) is rotatably connected to a multi-track arc surface block (403).

4. A pressure reducing booster device for regulating a damper door according to claim 2, characterized in that: A shaft sleeve (12) is fixedly mounted on the top of the sliding sleeve (8), the cylindrical driving block (6) fits in the inner cavity of the shaft sleeve (12), a gear ring (13) is fixedly connected to the bottom of one of the limit plates (302) at the top of the base (1), and the bottom of the gear ring (13) is in contact with the top of the base (2), and an installation groove is provided at the top of the base (1) and directly below one of the bases (2), and a motor for driving the rotating shaft (7) to rotate is installed in the installation groove.

5. The pressure reducing booster device for regulating a damper door according to claim 1, characterized in that: A top seat (14) is installed directly above the base (1), and the top seat (14) and the base (1) are fixedly connected via a plurality of groups of support columns.

6. The pressure reducing booster device for regulating a damper door according to claim 1, characterized in that: A guide frame (15) is fixedly connected to corresponding positions on one side of the base (1) and the top seat (14), and two side surfaces of the guide frame (15) are respectively provided with a first slide groove and a second slide groove. A slide plate (16) is slidably connected inside the guide frame (15), and two corresponding slide plates (16) are fixedly connected by a connecting column (17).

7. A pressure reducing booster device for regulating a damper door according to claim 6, characterized in that: The outer side of the slide plate (16) is rotatably connected to a driving arm (181); corresponding positions of the base (1) and the top seat (14) are movably connected to a middle transfer arm (182) via a bearing; one end of the driving arm (181) is rotatably connected to the middle transfer arm (182); a mounting frame (19) is fixedly connected between two middle transfer arms (182) corresponding to each other in two vertical directions; and the mounting frame (19) is fixedly connected to the baffle door (20).

8. The pressure reducing booster device for regulating a damper door according to claim 6, characterized in that: A tooth plate (21) meshingly connected with the tooth ring (13) is slidably connected in the second slide groove, and the tooth plate (21) is fixedly connected to the side wall of the slide plate (16).

9. The pressure reducing booster device for regulating a damper door according to claim 1, characterized in that: The corresponding limiting grooves are arranged in a circular array with the center of the limiting disk 1 (301) and the limiting disk 2 (302) respectively, and the outer side of the multi-track arc surface block (403) is connected with a belt (22).

Images