Control device for automatically opening and closing air door

Abstract

The utility model relates to the technical field of air door opening and closing control devices, in particular to an automatic air door opening and closing control device which comprises a door frame, a first door, a second door, an adjusting shaft, an adjusting gear, an adjusting toothed plate, an oil cylinder, a piston rod, an oil injection pipe, an oil return pipe, a pressure adjusting valve, a fixing assembly, a guide assembly and an adjusting assembly. The other adjusting shaft is arranged in one side of the second door, an oil injection pipe is arranged on the side wall of one end of the oil cylinder, an oil return pipe is arranged on the side wall of the other end of the oil cylinder, an adjusting valve is arranged on the side wall of the oil return pipe, a piston rod is arranged at the other end of the oil cylinder, and an adjusting toothed plate is arranged at one end of the piston rod. According to the automatic opening and closing air door control device, through precise mechanical design and a hydraulic transmission system, stable and orderly opening and closing of the air door are achieved, and meanwhile the tightness and stability of closing of the air door are further improved due to the fact that the pressure regulating valve is additionally arranged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a damper opening and closing control device technical field especially relates to a kind of control devices of automatic opening and closing damper. BACKGROUND

[0002] At present, mine ventilation system is unified according to double damper to realize, "damper control technology improvement in mine ventilation system", can completely solve the phenomenon such as wind blocking, skin damage and air leakage caused by improper closing sequence of damper, alarm state of monitoring and control system, improve effective air volume rate, and guarantee the stability and reliability of ventilation system.

[0003] In the process of mine ventilation system work, the damper in traditional mine ventilation system must be in complete state due to program setting, and damper can be closed in turn when closing, so as to achieve closed tight fitting state, in addition, in the process of opening and closing of damper, due to improper control of hydraulic oil return speed, damper is often closed too fast or too slow, even impact or close loosely, and other problems, which need to be improved urgently.

[0004] Therefore, aiming at the problem that damper cannot be opened and closed stably and orderly, a kind of control device of automatic opening and closing damper can be designed, the adjusting valve is installed on the injection pipe connecting end of brake cylinder of No. 1 door in the process of using damper opening and closing control device, which not only ensures the stability of damper opening and closing, but also effectively avoids the problems such as damper impact or close loosely caused by rapid oil return, the automatic opening and closing damper control device realizes the effect of damper opening and closing stably and orderly through precise mechanical design and hydraulic transmission system. CONTENT OF UTILITY MODEL

[0005] In order to overcome the problem that the control device of automatic opening and closing damper cannot be opened and closed stably and orderly in the process of using, the device will appear wrong closure damper shear damage wind blocking skin, or cannot be completely closed to cause damper air leakage, air flow short circuit, affect work surface or system effective air volume, at the same time, cause monitoring and control system damper opening and closing sensor abnormal, there is great security risk, which needs to be improved urgently, and then the damper cannot be opened and closed stably and orderly.

[0006] The utility model discloses a technical scheme for an automatic control device for opening and closing a damper, comprising a door frame, a first door, a second door, an adjusting shaft, an adjusting gear, an adjusting tooth plate, an oil cylinder, a piston rod, an oil injection pipe, an oil return pipe, a pressure regulating valve, a fixing assembly, a guide assembly and an adjusting assembly.

[0007] Preferably, during use of the damper opening and closing control device, the oil cylinder is first placed in the interior of the fixing assembly, and the adjusting assembly and the fixing assembly are closed through the guide assembly to ensure firm installation of the oil cylinder. During opening and closing of the damper, hydraulic oil is injected into the oil cylinder through the oil injection pipe to push the piston rod to move linearly, and the extension of the piston rod directly drives the adjusting tooth plate to move in parallel, and then, through the adjusting gear engaged therewith, the adjusting shaft is driven to rotate, which is immediately converted into rotation of the first door to achieve preliminary opening of the damper. In addition, the pressure regulating valve is installed at the oil injection pipe connecting end of the brake oil cylinder of the first door, which is designed to adjust the oil return speed of the hydraulic oil in the oil cylinder to slow down the closing speed of the first door and ensure smooth and tight closing of the damper according to the predetermined sequence. During the entire opening and closing cycle of the damper, the damper is closed in the normal sequence and tightly adheres. The normal closed state of the damper is that the windproof skin of the first door is stacked on the second door. When the damper is opened, the first door is opened first, and when it is opened to one third, the second door is immediately opened until it is fully opened. After the second door is fully opened, the first door is immediately fully opened. When closed, the second door is closed first, and after it is fully closed, the first door is immediately closed until it is fully closed. The two dampers are fully adhered. This design not only ensures the stability of the damper opening and closing, but also effectively avoids problems such as damper impact or improper closing caused by rapid oil return. In summary, the automatic damper opening and closing control device realizes smooth and orderly opening and closing of the damper through precise mechanical design and hydraulic transmission system. In addition, the pressure regulating valve further improves the tightness and stability of the damper closing.

[0008] Preferably, both ends of the adjusting shaft are rotatably connected to the inner wall of the door frame, and both sides of the movable hoop are fixedly connected to the side walls of the two guide assemblies. The adjusting tooth plate is engaged with the adjusting gear.

[0009] As preferred, the fixing assembly comprises a fixing hoop and fixing threaded holes, the upper side wall of the door frame is provided with the fixing hoop, the side wall of the fixing hoop is provided with the fixing threaded holes, the fixing threaded holes are provided in multiple groups, and the oil cylinder is arranged in the inside of the fixing hoop.

[0010] As preferred, the fixing assembly further comprises a fixing bolt, another fixing threaded hole is arranged on the side wall of the door frame, the inside of the fixing threaded hole is provided with the fixing bolt, and the fixing bolt is threadedly connected with the fixing threaded hole.

[0011] As preferred, the guiding assembly comprises guiding grooves, guiding rods and guiding blocks, the upper side wall of the door frame is provided with two groups of the guiding grooves, the inside of the guiding grooves is provided with the guiding rods, and the side wall of the guiding rods is provided with the guiding blocks.

[0012] As preferred, the guiding assembly further comprises a reset spring, the outside of the guiding rod is provided with the reset spring, one end of the reset spring is fixedly connected with the inner wall of the guiding block, and the other end of the reset spring is fixedly connected with the inner wall of the guiding groove.

[0013] As preferred, the adjusting assembly comprises a movable hoop, the upper side wall of the door frame is provided with the movable hoop, the movable hoop is arranged above the fixing hoop, and the two sides of the movable hoop are fixedly connected with the side walls of the two groups of guiding blocks.

[0014] The utility model discloses beneficial effects:

[0015] When the air door opening and closing control device is in use, first, the oil cylinder is placed into the inside of the fixed assembly, and the adjusting assembly and the fixed assembly can be closed through the guide assembly, ensuring that the oil cylinder is firmly installed, in the opening and closing process of the air door, the hydraulic oil is injected into the oil cylinder through the oil injection pipe, pushing the piston rod to move linearly, the extension of the piston rod directly drives the adjusting tooth plate to move in parallel, and then through the adjusting gear meshed with it, the adjusting shaft is driven to rotate, this rotating action is immediately converted into the rotation of the first door, realizing the preliminary opening of the air door, in addition, the injection pipe connecting end of the brake oil cylinder of the first door is provided with a pressure regulating valve, which is designed to adjust the oil return speed of the hydraulic oil in the oil cylinder, so as to slow down the closing speed of the first door, ensure that the air door is closed smoothly and tightly according to the established order, in the whole opening and closing cycle of the air door, the air door is closed according to the normal order and tightly, the normal closing state of the air door is that the first door wind blocking piece is stacked on the second door, when the air door is opened, the first door is opened first, and when it is opened to one third, the second door is opened immediately, until it is completely opened, the first door is completely opened after the second door is completely opened, then the second door is closed first, and then the first door is closed immediately, until it is completely closed, the two air doors are completely closed, this design not only ensures the stability of the air door opening and closing, but also effectively avoids the problems of air door impact or closing not tightly caused by rapid oil return, and the like, as described above, the automatic opening and closing air door control device realizes the smooth and orderly opening and closing of the air door through the precise mechanical design and hydraulic transmission system, and the addition of the pressure regulating valve further improves the tightness and stability of the air door closing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A first three-dimensional structure schematic view of the control device of the automatic opening and closing air door is shown.

[0017] Figure 2 A first partial three-dimensional structure schematic view of the control device of the automatic opening and closing air door is shown.

[0018] Figure 3 A second partial three-dimensional structure schematic view of the control device of the automatic opening and closing air door is shown.

[0019] Figure 4 A third partial three-dimensional structure schematic view of the control device of the automatic opening and closing air door is shown.

[0020] Explanation of reference signs: 1, door frame; 2, No. 1 door; 3, No. 2 door; 4, adjusting shaft; 5, adjusting gear; 6, adjusting tooth plate; 7, oil cylinder; 8, piston rod; 9, oil injection pipe; 10, oil return pipe; 11, pressure regulating valve; 101, fixed hoop; 102, fixed threaded hole; 103, fixed bolt; 201, guide groove; 202, guide rod; 203, guide block; 204, return spring; 301, movable hoop. DETAILED DESCRIPTION

[0021] The utility model is further explained in connection with the drawings and examples.

[0022] Please refer to Figure 1 With Figure 2 The utility model provides an embodiment: a control device of automatic opening and closing air door, including door frame 1, No. 1 door 2, No. 2 door 3, adjusting shaft 4, adjusting gear 5, adjusting tooth plate 6, oil cylinder 7, piston rod 8, oil injection pipe 9, oil return pipe 10, pressure regulating valve 11, fixed assembly, guide assembly and adjusting assembly, the inside of door frame 1 is provided with No. 1 door 2, the inside of door frame 1 is provided with No. 2 door 3, the inside of No. 1 door 2 is provided with adjusting shaft 4 on one side, adjusting shaft 4 is provided with two groups, and the other adjusting shaft 4 is arranged in the inside of No. 2 door 3 on one side, and the upper lateral wall of door frame 1 is provided with fixed assembly, the upper lateral wall of door frame 1 is provided with adjusting assembly, the upper lateral wall of door frame 1 is provided with two groups of guide assembly, the inside of fixed assembly is provided with oil cylinder 7, the one end lateral wall of oil cylinder 7 is provided with oil injection pipe 9, the other end lateral wall of oil cylinder 7 is provided with oil return pipe 10, and the lateral wall of oil return pipe 10 is provided with adjusting valve, the other end of oil cylinder 7 is provided with piston rod 8, and the one end of piston rod 8 is provided with adjusting tooth plate 6.

[0023] Please refer to Figure 2 With Figure 3The two ends of the adjusting shaft 4 are rotationally connected with the inner wall of the door frame 1, the two sides of the movable hoop 301 are fixedly connected with the side walls of the two groups of guide assemblies, the adjusting tooth plate 6 is engaged with the adjusting gear 5, the adjusting tooth plate 6 can be driven to rotate by the adjusting gear 5 to realize the rotation of the adjusting shaft 4, the fixing assembly comprises a fixing hoop 101 and a fixing threaded hole 102, the fixing hoop 101 is arranged on the upper side wall of the door frame 1, the fixing threaded hole 102 is arranged on the side wall of the fixing hoop 101, a plurality of fixing threaded holes 102 are arranged on the fixing hoop 101, the oil cylinder 7 is arranged in the fixing hoop 101, first, the plurality of fixing threaded holes 102 in the fixing hoop 101 are aligned with the plurality of fixing threaded holes 102 in the side wall of the door frame 1, the fixing assembly further comprises a fixing bolt 103, another fixing threaded hole 102 is arranged on the side wall of the door frame 1, the fixing bolt 103 is arranged in the fixing threaded hole 102, the fixing bolt 103 is threadedly connected with the fixing threaded hole 102, then, the fixing bolt 103 is rotationally arranged in the fixing threaded hole 102, so that the fixing hoop 101 can be stably arranged on the upper side wall of the door frame 1.

[0024] Please refer to Figure 3 and Figure 4 The guide assembly comprises a guide groove 201, a guide rod 202 and a guide block 203, two groups of guide grooves 201 are arranged on the upper side wall of the door frame 1, the guide rod 202 is arranged in the guide groove 201, the guide block 203 is arranged on the side wall of the guide rod 202, the two side guide blocks 203 are guided to slide through the two side guide rods 202, the guide assembly further comprises a reset spring 204, the reset spring 204 is arranged outside the guide rod 202, one end of the reset spring 204 is fixedly connected with the inner wall of the guide block 203, the other end of the reset spring 204 is fixedly connected with the inner wall of the guide groove 201, according to the elastic characteristics of the two reset springs 204, the guide block 203 can be driven to move downward through the guide rod 202, the adjusting assembly comprises a movable hoop 301, the movable hoop 301 is arranged on the upper side wall of the door frame 1 and above the fixing hoop 101, the two sides of the movable hoop 301 are fixedly connected with the side walls of the two groups of guide blocks 203, upward pulling the movable hoop 301 can drive the two side guide blocks 203 to move upward through the two side guide rods 202, at this time, the two reset springs 204 are extruded to be deformed, then, the oil cylinder 7 is arranged in the fixing hoop 101, the movable hoop 301 is released, according to the elastic characteristics of the two reset springs 204, the guide block 203 can be driven to move downward with the movable hoop 301, and the movable hoop 301 can be closed with the fixing hoop 101, so that the oil cylinder 7 is firmly clamped between the fixing hoop 101 and the movable hoop 301, and the installation work of the oil cylinder 7 is completed.

[0025] When the air door opening and closing control device is in use, first, align the multiple sets of fixed threaded holes 102 inside the fixed hoop 101 with the multiple sets of fixed threaded holes 102 on the side wall of the door frame 1, then rotate and install the fixed bolts 103 inside the fixed threaded holes 102, then the fixed hoop 101 can be stably installed on the upper side wall of the door frame 1,

[0026] Then, pulling up the movable hoop 301 can drive the two guide blocks 203 to move upwards through the two guide rods 202, at this time, the two reset springs 204 are extruded and deformed, then the oil cylinder 7 is placed inside the fixed hoop 101, then the movable hoop 301 is released, according to the elastic characteristics of the two reset springs 204, the guide blocks 203 drive the movable hoop 301 to move downwards, and the movable hoop 301 and the fixed hoop 101 can achieve a closed state, ensuring that the oil cylinder 7 is firmly clamped between the fixed hoop 101 and the movable hoop 301, then the installation of the oil cylinder 7 is completed,

[0027] During the opening and closing of the air door, hydraulic oil is injected into the oil cylinder 7 through the oil injection pipe 9, pushing the piston rod 8 to move linearly, the extension of the piston rod 8 directly drives the adjustment gear plate 6 to move in parallel, and then through the adjustment gear 5 meshing with it, drives the adjustment shaft 4 to rotate, this rotating action is immediately converted into the rotation of the No. 2 door 2, realizing the preliminary opening of the air door, in addition, the No. 3 door 3 is opened through another set of oil cylinder 7 opening and closing structure,

[0028] In addition, the connection end of the oil injection pipe 9 of the brake oil cylinder 7 of the No. 1 door 2 is provided with a pressure regulating valve 11, which is designed to adjust the oil return speed of the hydraulic oil in the oil cylinder 7, so as to slow down the closing speed of the No. 1 door 2, ensure that the air door closes smoothly and tightly according to the established order, and promote the air door to close normally and tightly in the whole opening and closing cycle of the air door,

[0029] The normal closing state of the air door is that the No. 1 door 2 wind deflector is stacked on the No. 3 door 3, when the air door is opened, the No. 1 door 2 is opened first, and when it is opened to one third, the No. 3 door 3 is opened immediately, until it is completely opened, the No. 1 door 2 is completely opened after the No. 3 door 3 is completely opened, then the No. 3 door 3 is closed first, then the No. 1 door 2 is closed immediately after it is completely closed, until it is completely closed, the two air doors are completely closed. This design not only ensures the stability of the air door opening and closing, but also effectively avoids the problems of air door impact or closing not tightly caused by rapid oil return,

[0030] In summary, the automatic opening and closing air door control device realizes the smooth and orderly opening and closing of the air door through precise mechanical design and hydraulic transmission system, and the addition of the pressure regulating valve 11 further improves the tightness and stability of the air door closing.

[0031] Through the above steps, when the damper opening and closing control device is in use, first, the oil cylinder 7 is placed in the inside of the fixed assembly, and the adjusting assembly can be closed with the fixed assembly through the guide assembly, ensuring that the oil cylinder 7 is firmly installed. In the opening and closing process of the damper, the hydraulic oil is injected into the oil cylinder 7 through the oil injection pipe 9, pushing the piston rod 8 to move linearly, and the extension of the piston rod 8 directly drives the adjusting tooth plate 6 to move in parallel, and then through the adjusting gear 5 engaged therewith, the adjusting shaft 4 is driven to rotate, which is immediately converted into the rotation of the No. 1 door 2, realizing the preliminary opening of the damper. In addition, the oil injection pipe 9 connecting end of the brake oil cylinder 7 of the No. 1 door 2 is provided with a pressure regulating valve 11, which is designed to adjust the oil return speed of the hydraulic oil in the oil cylinder 7, so as to slow down the closing speed of the No. 1 door 2, and ensure that the damper is closed smoothly and tightly according to the established order. In the whole opening and closing cycle of the damper, the damper is closed according to the normal order and tightly, and the normal closing state of the damper is that the No. 1 door 2 is stacked on the No. 2 door 3. When the damper is opened, the No. 1 door 2 is opened first, and when it is opened to one third, the No. 2 door 3 is opened immediately, and then the No. 1 door 2 is completely opened. When closing, the No. 2 door 3 is closed first, and then the No. 1 door 2 is closed immediately after the No. 2 door 3 is completely closed, and then the No. 2 door 3 is completely closed. The design not only ensures the stability of the damper opening and closing, but also effectively avoids the problems of damper impact or closing not tightly caused by rapid oil return. In summary, the automatic opening and closing damper control device realizes the stable and orderly opening and closing of the damper through precise mechanical design and hydraulic transmission system. At the same time, the addition of the pressure regulating valve 11 further improves the tightness and stability of the damper closing.

[0032] The embodiments of the utility model are described in detail above combined with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of those skilled in the art without departing from the purpose of the utility model.

Claims

1. A control device for automatically opening and closing a damper, comprising a door frame (1), characterized in that: It also includes a No. 1 door (2), a No. 2 door (3), an adjusting shaft (4), an adjusting gear (5), an adjusting tooth plate (6), a hydraulic cylinder (7), a piston rod (8), an oil injection pipe (9), an oil return pipe (10), a pressure regulating valve (11), a fixing assembly, a guide assembly, and an adjusting assembly. The No. 1 door (2) is installed inside the door frame (1), and the No. 2 door (3) is installed inside the door frame (1). An adjusting shaft (4) is installed inside one side of the No. 1 door (2). There are two sets of adjusting shafts (4), and another adjusting shaft (4) is installed on one side of the No. 2 door (3). Inside the side, a fixing component is provided on the upper side wall of the door frame (1), an adjusting component is provided on the upper side wall of the door frame (1), two sets of guide components are provided on the upper side wall of the door frame (1), a hydraulic cylinder (7) is provided inside the fixing component, an oil injection pipe (9) is provided on one side wall of the hydraulic cylinder (7), a return oil pipe (10) is provided on the other side wall of the hydraulic cylinder (7), an adjusting valve is provided on the side wall of the return oil pipe (10), a piston rod (8) is provided on the other end of the hydraulic cylinder (7), and an adjusting tooth plate (6) is provided on one end of the piston rod (8).

2. The control device for automatically opening and closing a damper according to claim 1, characterized in that: Both ends of the adjusting shaft (4) are rotatably connected to the inner wall of the door frame (1), both sides of the movable hoop (301) are fixedly connected to the side walls of the two sets of guide components, and the adjusting tooth plate (6) meshes with the adjusting gear (5).

3. The control device for automatically opening and closing a damper according to claim 1, characterized in that: The fixing component includes a fixing hoop (101) and a fixing threaded hole (102). The fixing hoop (101) is provided on the upper side wall of the door frame (1). The fixing threaded hole (102) is provided on the side wall of the fixing hoop (101). Multiple sets of fixing threaded holes (102) are provided. The oil cylinder (7) is located inside the fixing hoop (101).

4. The control device for automatically opening and closing a damper according to claim 3, characterized in that: The fixing assembly also includes a fixing bolt (103), and another fixing threaded hole (102) is provided on the side wall of the door frame (1). The fixing bolt (103) is provided inside the fixing threaded hole (102), and the fixing bolt (103) is threadedly connected to the fixing threaded hole (102).

5. The control device for automatically opening and closing a damper according to claim 3, characterized in that: The guide assembly includes a guide groove (201), a guide rod (202) and a guide block (203). Two sets of guide grooves (201) are provided on the upper side wall of the door frame (1). A guide rod (202) is provided inside the guide groove (201), and a guide block (203) is provided on the side wall of the guide rod (202).

6. The control device for automatically opening and closing a damper according to claim 5, characterized in that: The guide assembly also includes a reset spring (204). The reset spring (204) is provided on the outside of the guide rod (202). One end of the reset spring (204) is fixedly connected to the inner wall of the guide block (203), and the other end of the reset spring (204) is fixedly connected to the inner wall of the guide groove (201).

7. The control device for automatically opening and closing a damper according to claim 5, characterized in that: The adjustment assembly includes a movable hoop (301). The movable hoop (301) is provided on the upper side wall of the door frame (1). The movable hoop (301) is located above the fixed hoop (101). Both sides of the movable hoop (301) are fixedly connected to the side walls of two sets of guide blocks (203).

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