Opening and closing device and automatic opening and closing system

Abstract

The opening and closing device comprises a pressure relief mechanism and a traction mechanism, a panel blocks a space opening, and a channel is arranged on the surface of the panel and communicated with the inside and the outside of the space; the pressure relief mechanism is configured to cover or be away from the channel opening, a traction mechanism is arranged on the outer side of the panel, and the traction mechanism is configured to drive the panel to open or block the space opening. The utility model has the beneficial effects that the problems that the panel at the channel is difficult to open due to the wind pressure flowing from the channel to the space, and the impact on the opening of the space is large when the panel is closed are mainly solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mining technical field especially relates to a kind of opening and closing device and automatic opening and closing system. BACKGROUND

[0002] The air door in coal mine is mainly used to adjust the size and direction of air flow, to ensure the smooth air circulation in the mine, to meet the needs of normal breathing of staff and production operation. Since the air door itself is designed very heavy, plus the existence of wind pressure, it is very difficult to open the air door by manpower, and a slight carelessness can cause the staff to be clamped by the air door and lead to the occurrence of work injury accident.

[0003] The existing air door control in Zhu Jidong coal mine is realized by a pneumatic cylinder dragging the steel wire rope fixed on the door to open and close the air door. This method has simple mechanical device and low failure rate, and is a common air door opening and closing device. However, this air door opening and closing device has a problem: when the air door is closed, the air cylinder driven by the compressed air makes the push rod extend, and since the speed of the push rod extension is fast, the push rod has already extended completely when the air door starts to close, so the steel wire rope cannot drag the air door, and the air door is closed too fast under the combined action of gravity and wind pressure, and the air door will hit the door frame heavily every time it is closed, which has the risk of staff being clamped and the short service life of the air door.

[0004] The information disclosed in this background section is only intended to increase the understanding of the general background of the present utility model, and should not be considered as acknowledging or implying in any form that this information has been constructed as prior art known to those skilled in the art. CONTENT OF THE UTILITY MODEL

[0005] The technical problem to be solved by the utility model is to solve the difficulty of opening the panel and the problem of heavy impact on the space opening when closing.

[0006] The utility model solves the above technical problems by the following technical means:

[0007] The utility model requires protection of an opening and closing device, including pressure relief mechanism and traction mechanism, panel is blocked at space opening, panel surface sets passage, passage communicates inside and outside of space;

[0008] The pressure relief mechanism is configured to cover or move away from the passage, the traction mechanism is arranged on the outside of the panel, and the traction mechanism is configured to drive the panel to open or block at the space opening.

[0009] Preferably, the pressure relief mechanism comprises a first power assembly and a cover surface, the panel and the cover surface are parallel to each other, and the cover surface covers one end of the channel, and the channel opening matched with the cover surface constitutes the channel opening; the first power assembly is arranged on the panel located at one side of the cover surface, and the first power assembly is configured to drive the cover surface to generate a linear movement action close to or away from the channel opening.

[0010] Preferably, the pressure relief mechanism further comprises a guide assembly, the guide assembly is arranged between the cover surface and the panel, and the guide assembly is configured to guide the cover surface and the panel to form a sliding guide cooperation, and the guide direction of the guide assembly is parallel to the driving direction of the first power assembly.

[0011] Preferably, the first power assembly comprises a gear, a rack and a first power source, the first power source is arranged above the cover surface, the first power source driving shaft is provided with the gear, and the gear axis is perpendicular to the long side of the cover surface; the surface of the cover surface away from the space is provided with the rack engaged with the gear, and the rack is arranged along the long side of the cover surface; wherein, the first power source is configured to drive the gear to generate a rotary motion around the gear axis.

[0012] Preferably, the guide assembly comprises a sliding rail and a sliding block, the sliding rail is arranged below the cover surface, and the sliding rail is arranged along the length direction of the cover surface; the sliding block is arranged at the bottom of the cover surface, and the sliding block and the sliding rail form a guide rail guide cooperation along the length direction of the sliding rail.

[0013] Preferably, the sliding rail has a U-shaped cross-sectional configuration, and the sliding block is provided with a roller (6121) in rolling cooperation with the sliding rail.

[0014] Preferably, the traction mechanism comprises a traction member, a winding drum and a second power assembly, the winding drum is arranged at one side of the panel outside the space, the winding drum winds the traction member, one end of the traction member is connected to the panel, and the side of the panel away from the traction member is coupled to the space opening, wherein the second power assembly is configured to drive the winding drum to generate a rotary motion around the winding drum axis.

[0015] Preferably, the panel comprises a door panel body, a door shaft and a bearing, one side of the door panel body is connected to the space opening through the door shaft, and the bearing is arranged between the space and the door shaft.

[0016] The utility model requires protecting an automatic opening and closing system, and applies an opening and closing device, which comprises a second power source, a pipeline, a first gate valve, a control unit and an induction switch unit, the second power source is sequentially connected with the first gate valve and the control unit through the pipeline; the output end of the control unit is connected with the induction switch unit respectively, the induction switch unit is located at the opening limit position and the closing limit position of the panel respectively, and the induction switch unit is configured to control the second power assembly to open or close.

[0017] Preferably, the induction switch unit is a limit switch.

[0018] The utility model discloses a kind of advantages, which are as follows:

[0019] The utility model requires protection a kind of opening and closing device, mainly solve the panel at passageway, because by the wind pressure from passageway to space, leading to panel opening difficult, and the problem of big impact to space opening when closing, by arranging pressure relief mechanism, pressure relief mechanism is divided into two states, state one is covered at passageway, state two is away from passageway;Pressure relief mechanism state switching cooperates traction mechanism in opening or closing panel, specifically, when panel needs to open, pressure relief mechanism switches to state two, removes the pressure effect of wind pressure exerted on panel, and traction mechanism drives panel to open;When panel needs to close, pressure relief mechanism switches to state one, wind pressure effect cooperates panel self gravity, and then combined with traction mechanism reverse start, so that panel is blocked in space opening, because panel needs to close, traction mechanism effect and wind pressure effect are opposite, so that panel is close to space opening, and receives stable resistance effect, avoid the problem of strong impact of panel to space opening.

[0020] II, pressure relief mechanism is covered by being set at passageway one end, and the coincidence or misalignment of covering surface and passageway is realized by the first power component driving covering surface to move;Such design advantage is that, one, the misalignment degree change of covering surface and passageway is stable and uniform change, therefore, wind pressure is removed stably;Two, covering surface and panel are always guaranteed parallel state, so it will not affect the opening and closing of panel, and also avoids collision when personnel enters and exits.

[0021] III, the guiding effect of guide component not only guarantees the stable operation of covering surface and passageway, but also has limited effect on the adhesion of covering surface and panel, to avoid wind pressure leakage when covering surface covers passageway.

[0022] IV, in addition to the guiding effect when the covering surface slides, slide rail also forms supporting effect to covering surface, so that the gear and rack of the first power component are always kept in meshing state, guaranteeing the stable operation of the first power component.

[0023] V, slide rail is in U-shaped cross-sectional configuration, and roller is arranged at the bottom end of sliding block, so that the roller and slide rail form rolling cooperation, friction is reduced, and the first power source is adjusted conveniently.

[0024] VI, traction mechanism realizes the effect on panel by setting traction piece and winding drum, and the traction piece is preferably flexible traction piece, which mainly plays a compensation role when the panel opens and closes, reducing the interference when opening and closing.

[0025] Seven, the door plate body is connected to the space opening through the door shaft, so that the door plate body rotates around the door shaft when opening and closing, thereby being more stable, and the traction mechanism is connected to the other side of the door plate body, so that the door plate body always has an adjustable fulcrum, avoiding displacement, misplacement and slipping of the door plate body when the traction mechanism is pulled.

[0026] Eight, the utility model also requires protecting an automatic opening and closing system, mainly through the control unit cooperates the inductive switch unit control realizes the opening and closing of the panel, and the automation degree is high. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the control panel opening schematic diagram of the automatic opening and closing system of the utility model;

[0028] Figure 2 is the channel covering schematic diagram of the pressure relief mechanism of the utility model;

[0029] Figure 3 is the channel separating schematic diagram of the pressure relief mechanism of the utility model;

[0030] Figure 4 is the control panel closing schematic diagram of the automatic opening and closing system of the utility model.

[0031] 1, second power source; 2, pipeline; 3, first gate valve; 4, control unit; 51, first limit switch; 52, second limit switch;

[0032] 6101, gear; 6102, rack; 6103, first power source; 611, covering surface; 6120, slide rail; 6121, roller; 620, traction piece; 621, winding drum; 6220, pneumatic motor; 6221, worm reducer;

[0033] 70, channel; 71, door plate body; 72, door shaft; 73, bearing. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0035] Reference Figure 1The utility model requires protecting an automatic opening and closing system, including second power source 1, pipeline 2, first gate valve 3, control unit 4, inductive switch unit and opening and closing device.

[0036] Wherein, the opening and closing device includes pressure relief mechanism and traction mechanism, the panel is blocked at the space opening, the panel surface is provided with passageway 70, and the passageway 70 is communicated inside and outside the space.

[0037] Referring to Figure 1 And Figure 2 Wherein, the panel includes door plate body 71, door shaft 72 and bearing 73, one side of the door plate body 71 is connected to the space opening through the door shaft 72, and the bearing 73 is arranged between the space and the door shaft 72, one side of the door plate body 71 is connected to the space opening through the door shaft 72, so that the door plate body 71 always rotates around the door shaft 72 when opening and closing, thereby being more stable; Furthermore, the bearing 73 is arranged between the space and the door shaft 72, and the flexibility of the rotation of the door plate body 71 is increased.

[0038] Referring to Figures 1 to 3 Wherein, the pressure relief mechanism includes a first power assembly, a cover surface 611 and a guide assembly, the panel and the cover surface 611 are parallel to each other, and the cover surface 611 covers one end of the passageway 70, and the opening of the passageway 70 that is attached to the cover surface 611 constitutes the passageway 70; the first power assembly is arranged on the panel on one side of the cover surface 611, and the first power assembly is configured to drive the cover surface 611 to generate a linear movement action close to or away from the opening of the passageway 70, and the pressure relief mechanism is configured to drive the cover surface 611 to move through the first power assembly, so as to realize the coincidence or misalignment of the cover surface 611 and the passageway 70; the design has the following advantages: first, the misalignment degree of the cover surface 611 and the passageway 70 changes stably and uniformly, so that the wind pressure is removed stably; second, the cover surface 611 and the panel are always in parallel state, so that the opening and closing of the panel is not affected, and personnel access is avoided without collision.

[0039] Further, the first power assembly includes a gear 6101, a rack 6102 and a first power source 6103, the first power source 6103 is arranged above the cover surface 611, the driving shaft of the first power source 6103 is provided with the gear 6101, and the axis of the gear 6101 is perpendicular to the long side of the cover surface 611; the surface of the cover surface 611 away from the space is provided with the rack 6102 engaged with the gear 6101, and the rack 6102 is arranged along the long side of the cover surface 611, wherein the first power source 6103 is configured to drive the gear 6101 to generate a rotary motion around the axis of the gear 6101.

[0040] A guide assembly is arranged between the covering surface 611 and the panel, and the guide assembly is configured to guide the covering surface 611 to form a sliding guide cooperation with the panel, and the guide direction of the guide assembly is parallel to the driving direction of the first power assembly. The guide effect of the guide assembly not only ensures the stable operation of the covering surface 611 and the channel 70, but also limits the fit of the covering surface 611 and the panel, so as to avoid the wind pressure leakage of the covering surface 611 at the opening of the channel 70.

[0041] Further, the guide assembly includes a sliding rail 6120 and a sliding block. The sliding rail 6120 is arranged below the covering surface 611 and on the panel, and the sliding rail 6120 is arranged along the length direction of the covering surface 611. The sliding block is arranged at the bottom of the covering surface 611, and the sliding block and the sliding rail 6120 form a guide rail guide cooperation along the length direction of the sliding rail 6120. In addition to the guiding effect of the sliding rail 6120 on the sliding of the covering surface 611, the sliding rail 6120 also forms a supporting effect on the covering surface 611, so that the gear 6101 and the rack 6102 of the first power assembly always maintain the meshing state, and the stable operation of the first power assembly is ensured. The sliding rail 6120 has a U-shaped cross-sectional configuration, and the sliding block is provided with a roller 6121 which forms a rolling cooperation with the sliding rail 6120, so that the roller 6121 and the sliding rail 6120 form a rolling cooperation, the friction is reduced, and the first power source 6103 is adjusted.

[0042] The traction mechanism includes a traction member 620, a winding drum 621 and a second power assembly. The winding drum 621 is arranged on one side of the panel outside the space, the winding drum 621 winds the traction member 620, one end of the traction member 620 is connected to the panel, and the other side of the panel away from the traction member 620 is coupled to the opening of the space. The second power assembly is configured to drive the winding drum 621 to rotate around the axis of the winding drum 621. The traction mechanism winds or unwinds the traction member 620 by the winding drum 621 to act on the panel. The traction member 620 is preferably a flexible traction member 620, which mainly plays a compensation role when the panel is opened or closed, and reduces the interference when the panel is opened or closed.

[0043] The opening and closing device mainly solves the problems that the panel at the passage 70 is difficult to open and has a large impact on the space opening when closing due to the wind pressure flowing from the passage 70 to the space. The pressure relief mechanism is arranged in two states, state one covers the passage 70, and state two is away from the passage 70. The state switching of the pressure relief mechanism cooperates with the traction mechanism to open or close the panel. Specifically, when the panel needs to be opened, the pressure relief mechanism is switched to state two to remove the pressure of the wind pressure acting on the panel, and the traction mechanism drives the panel to open. When the panel needs to be closed, the pressure relief mechanism is switched to state one, the wind pressure acts in cooperation with the gravity of the panel, and the traction mechanism is reversely started to make the panel block the space opening. When the panel needs to be closed, the traction mechanism acts in the opposite direction of the wind pressure, so that the panel receives stable resistance when closing to the space opening, thereby avoiding the problem that the panel has a strong impact on the space opening.

[0044] The second power source 1 is connected with the first gate valve 3 and the control unit 4 in sequence through the pipeline 2. The output end of the control unit 4 is connected with the inductive switch unit respectively. The inductive switch unit is located at the opening limit position and the closing limit position of the panel respectively. The inductive switch unit is configured to control the opening and closing of the second power assembly. The opening and closing of the panel are realized through the control of the control unit and the inductive switch unit, and the degree of automation is high.

[0045] The utility model provides a kind of concrete application scene, for example, the air door of opening and closing mine, panel is air door, air door is height, width and thickness is 60mm wooden door, and the ground inclination angle 10 °.

[0046] The first power source 6103 is preferably an electric motor. The second power assembly includes a pneumatic motor 6220 and a worm reducer 6221. The pneumatic motor 6220 is preferably a horizontal pneumatic motor 6220 with a model number of HFV16 / 2000, a rotating speed of 2000r / min, an output shaft diameter of 28mm, a rated power of 7kW and a torque of 34N.m. The pneumatic motor 6220 is used to drive the worm reducer 6221. The worm reducer 6221 is preferably a worm reducer with a model number of NMRV110 / 100, an input end hole diameter of 28mm, an output end hole diameter of 42mm and a reduction ratio of 100:1. The worm reducer 6221 is connected with the pneumatic motor 6220 through a key shaft and is driven by the pneumatic motor 6220 to rotate in forward and reverse directions. The winding drum 621 is preferably a steel wire rope winding drum 621, which is connected with the worm reducer 6221 through a key shaft. The winding drum has a diameter of 100mm and a circumference of 314mm.

[0047] The inductive switch unit is preferably a roller type pneumatic limit switch with a model number of JM-07. The control unit 4 is preferably a mine-used intrinsically safe pneumatic control box with a model number of KXH-18. The second power source 1 is preferably a wind source. The pipeline 2 is preferably an air pipe.

[0048] Referring again to Figure 1 In actual use, it is divided into two states of opening and closing the air door. Taking the opening air door as an example, the following steps are included:

[0049] The pressure relief mechanism acts in the positive direction, the first power source 6103 drives the gear 6101 to rotate in the positive direction, the gear 6101 meshes with the rack 6102, so that the cover surface 611 is staggered with the channel 70, and the wind pressure flows into the space, i.e. the mine, from the channel 70, reducing the negative pressure inside the mine.

[0050] The automatic opening and closing system acts in the positive direction, opening the first gate valve 3, pressing the “open” button on the control unit 4, the compressed air enters the A port of the first limit switch 51 through the air pipe, and is output from the P port of the first limit switch 51 to the A port of the pneumatic motor 6220. At this time, the pneumatic motor 6220 rotates in the positive direction to drive the worm reducer 6221 to rotate in the positive direction, and the worm reducer 6221 drives the winding drum 621 to rotate in the positive direction after deceleration. The winding drum 621 drives the traction member 620 by winding to gradually open the panel. When the panel is completely opened, the first limit switch 51 contact is triggered, the air source is disconnected, and the pneumatic motor 6220 stops rotating in the positive direction, and the panel opening process is completed.

[0051] When closing the air door, the following steps are included:

[0052] Referring again to Figure 4 , the pressure relief mechanism acts in the reverse direction, the first power source 6103 drives the gear 6101 to rotate in the reverse direction, the gear 6101 meshes with the rack 6102, so that the cover surface 611 covers the channel 70, and the wind pressure acts on the panel surface.

[0053] The automatic opening and closing system acts in the reverse direction, opening the first gate valve 3, pressing the “close” button on the control unit 4, the compressed air enters the A port of the second limit switch 52 through the air pipe, and is output from the P port of the second limit switch 52 to the A port of the pneumatic motor 6220. At this time, the pneumatic motor 6220 rotates in the reverse direction to drive the worm reducer 6221 to rotate in the reverse direction, and the worm reducer 6221 drives the winding drum 621 to rotate in the reverse direction after deceleration. The winding drum 621 gradually unwinds the traction member 620 by winding, and the wind pressure acts on the panel itself and the gravity of the panel itself, which will drive the panel to close. Combined with the winding drum 621 gradually unwinding the traction member 620, the panel gradually closes. Because the traction force of the traction member 620 on the panel is always uniform, the closing speed of the panel is stable. When the panel is completely closed, the second limit switch 52 contact is triggered, the air source is disconnected, and the pneumatic motor 6220 stops rotating in the reverse direction, and the panel closing process is completed.

[0054] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An opening and closing device characterized by comprising: The panel is closed at the space opening, and a channel (70) is arranged on the panel surface. The pressure relief mechanism is configured to cover or move away from the channel (70) opening, and the traction mechanism is arranged on the outer side of the panel and is configured to drive the panel to open or close at the space opening.

2. A closure device according to claim 1, wherein The pressure relief mechanism includes a first power component and a covering surface (611), and the panel and the covering surface (611) are parallel to each other, and the covering surface (611) covers one end of the channel (70). The opening of the channel (70) that is attached to the covering surface (611) constitutes the channel (70) opening. The first power component is arranged on the panel on one side of the covering surface (611), and the first power component is configured to drive the covering surface (611) to produce a linear movement action close to or away from the channel (70) opening.

3. A closure device according to claim 2, wherein The pressure relief mechanism further includes a guide component arranged between the covering surface (611) and the panel, and the guide component is configured to guide the covering surface (611) and the panel to form a sliding guide cooperation, and the guide direction of the guide component is parallel to the driving direction of the first power component.

4. An opening and closing device according to claim 2, characterized in that The first power component includes a gear (6101), a rack (6102), and a first power source (6103). The first power source (6103) is arranged above the covering surface (611), and the driving shaft of the first power source (6103) is provided with the gear (6101). The axis of the gear (6101) is perpendicular to the long side of the covering surface (611). The surface of the covering surface (611) away from the space is provided with the rack (6102) engaged with the gear (6101), and the rack (6102) is arranged along the long side of the covering surface (611). The first power source (6103) is configured to drive the gear (6101) to produce a rotary action around the axis of the gear (6101).

5. An opening and closing device according to claim 3, characterized in that The guide component includes a slide rail (6120) and a sliding block. The slide rail (6120) is arranged below the covering surface (611) and is arranged along the length direction of the covering surface (611). The bottom of the covering surface (611) is provided with a sliding block, and the sliding block and the slide rail (6120) form a guide rail guide cooperation along the length direction of the slide rail (6120).

6. An opening and closing device according to claim 5, characterised in that The slide rail (6120) has a U-shaped cross-sectional configuration, and the bottom end of the sliding block is provided with a roller (6121) that forms a rolling cooperation with the slide rail (6120).

7. An opening and closing device according to claim 1, characterized in that The traction mechanism includes a traction member (620), a winding drum (621), and a second power component. The winding drum (621) is arranged on one side of the panel outside the space, and the winding drum (621) winds the traction member (620). One end of the traction member (620) is connected to the panel, and the side of the panel away from the traction member (620) is coupled to the space opening. The second power component is configured to drive the winding drum (621) to produce a rotary action around the axis of the winding drum (621).

8. An opening and closing device according to claim 1, characterized in that The panel includes a door panel body (71), a door shaft (72), and a bearing (73). One side of the door panel body (71) is connected to the space opening through the door shaft (72), and the bearing (73) is arranged between the space and the door shaft (72).

9. An automatic opening and closing system using the opening and closing device according to any one of claims 1 to 8, characterized by The utility model relates to a kind of second power source (1), pipeline (2), first gate valve (3), control unit (4) and inductive switch unit, second power source (1) is sequentially connected first gate valve (3) and control unit (4) by pipeline (2);The output end of control unit (4) is connected inductive switch unit respectively, inductive switch unit is located panel opening limit position and closing limit position respectively, and inductive switch unit is configured to control second power assembly opening or closing.

10. An automatic opening and closing system according to claim 9, characterized in that The inductive switch unit is a limit switch.

Images