Automatic ventilation device

Abstract

The utility model relates to the technical field of ventilation equipment, in particular to an automatic ventilation device. An automatic ventilation device comprises a ventilation pipe, the upper portion of the ventilation pipe is connected with a connecting pipe communicated with the interior of the ventilation pipe, a circle of limiting ring is arranged on the outer wall, close to the front end, of the ventilation pipe, a circle of sealing ring is installed at the position, located on the front side of the limiting ring, of the front end of the ventilation pipe, and a plugging assembly is arranged in the ventilation pipe. And one side of the ventilation pipe is connected with an opening and closing assembly. By arranging the opening and closing assembly, the magnetic attraction lock head and the fastener, the sealing cover can be automatically opened and closed through the driving motor, operation is easy, and time and labor are saved. And secondly, by arranging the plugging assembly, a first semicircular block and a second semicircular block can play a role in plugging the ventilation pipeline when the sealing cover needs to be replaced or maintained, and meanwhile, the first semicircular block and the second semicircular block can also play a role in plugging impurities and insects entering the ventilation pipeline due to untight sealing of the sealing cover.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to an automatic ventilation device. Background Technique

[0002] Ventilation of grain depots is an essential measure for storing grains, which greatly improves the safety of grains. Special ventilation facilities need to be set up for grain depot ventilation to prevent grains from getting damp, mildewing and being damaged by pests, ensure that the grains maintain good quality during storage, extend the shelf life. Especially for national grain reserve depots, they are an important guarantee for the country's macroeconomic regulation and control and ensuring the normal circulation of the market.

[0003] Through retrieval, a heat-insulating double-sealed grain depot ventilation opening with the publication number of CN206061581U includes a ventilation cylinder and a sealing door. The sealing door is hinged to the side end of the ventilation cylinder through a connecting piece and fastened to the ventilation cylinder through a fastening piece; the ventilation cylinder includes a first sleeve and a second sleeve, a gap is arranged between the first sleeve and the second sleeve, and a first heat-insulating layer is arranged in the gap; a fumigation pipeline is arranged on the ventilation cylinder, and the fumigation pipeline is vertically communicated with the ventilation cylinder.

[0004] However, for the above heat-insulating double-sealed grain depot ventilation opening, the opening and closing of the sealing door still need to be manually operated by people, which is time-consuming and laborious. At the same time, no corresponding blocking component is arranged inside the ventilation pipe, which will cause foreign matters and mice from the outside to enter the ventilation pipe, affecting the quality of grains. Content of the Utility Model

[0005] Aiming at the existing problems, the utility model provides an automatic ventilation device to solve the problems mentioned in the background technique, that is, for the heat-insulating double-sealed grain depot ventilation opening, the opening and closing of the sealing door still need to be manually operated by people, which is time-consuming and laborious. At the same time, no corresponding blocking component is arranged inside the ventilation pipe, which will cause foreign matters and mice from the outside to enter the ventilation pipe, affecting the quality of grains.

[0006] To solve the existing problems, the present utility model provides an automatic ventilation device, which includes a ventilation pipe. A connecting pipe communicating with the inside of the ventilation pipe is connected to the upper part of the ventilation pipe. A limiting ring is arranged on the outer wall of the ventilation pipe near the front end. A sealing ring is installed at the front end of the ventilation pipe on the front side of the limiting ring. A plugging component is arranged inside the ventilation pipe, and an opening and closing component is connected to one side of the ventilation pipe; the plugging component includes two groups of limiting cards symmetrically connected to the inner wall of the ventilation pipe. A semi-circular filter screen is clamped between each group of limiting cards. A plugging block is installed on the front side of the semi-circular filter screen; the opening and closing component includes two L-shaped plates horizontally and symmetrically connected to the outer side wall of the ventilation pipe. The front ends of the L-shaped plates are connected by a vertical angle steel. A U-shaped frame is rotatably connected to the inner wall of the angle steel through two movable parts. A closing cover is fixedly connected to one side surface of the U-shaped frame. The closing cover can be sleeved on the front end of the ventilation pipe. A driving motor is installed on the outer wall of one side of the angle steel. The end of the output shaft at the lower part of the driving motor is fixedly connected with a driving arm. One end of the driving arm far from the output shaft of the driving motor is movably connected with one end of a driven arm through a pin. The other end of the driven arm is hinged to a fixed ear fixedly connected to the front surface of the closing cover.

[0007] Further, each group of limiting cards includes two limiting plates arranged at different positions on the inner wall of the ventilation pipe.

[0008] Further, the plugging block includes a first semi-circular block and a second semi-circular block. A handle is installed on the front surface of each of the first semi-circular block and the second semi-circular block. The first semi-circular block and the second semi-circular block can be spliced and separated.

[0009] Further, circular protrusions are arranged on the inner surface of the closing cover.

[0010] Further, a first stop bar is arranged at the front end of the diameter end side surface of the first semi-circular block, and a second stop bar is arranged at the rear end of the diameter end side surface of the second semi-circular block.

[0011] Further, the movable part includes two fixing pieces fixedly connected to the inner wall of the angle steel. A rotating shaft is rotatably connected between the two fixing pieces through a pin.

[0012] Further, a magnetic lock head is installed on one side of the closing cover. A fastener is installed on the side end of the limiting ring on one side of the magnetic lock head. The magnetic lock head is magnetically connected to the fastener.

[0013] Further, rubber layers are arranged on the arc-shaped edges of the first semi-circular block and the second semi-circular block.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. The utility model can automatically open and close the sealing cover through the setting of the opening and closing assembly, the magnetic suction lock head and the fastener, with simple operation, time-saving and labor-saving.

[0016] 2. By setting the blocking assembly, the first semi-circular block and the second semi-circular block can block the ventilation duct when the sealing cover needs to be replaced or repaired. At the same time, the first semi-circular block and the second semi-circular block can also block impurities and insects entering the ventilation duct due to the imperfect sealing of the sealing cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the overall structure of the utility model Figure 1 ;

[0018] Figure 2 Schematic diagram of the overall structure of the utility model Figure 2 ;

[0019] Figure 3 Schematic diagram of the partial structure of the present utility model;

[0020] Figure 4 Schematic diagram of the structure of the movable part of the utility model;

[0021] Figure 5 Schematic diagram of the first semi-circular block and the second semi-circular block of the utility model;

[0022] In the figure: 1, ventilation pipe; 2, connecting pipe; 3. Limiting ring; 4, sealing ring; 5, blocking assembly; 501, limiting card; 5011, limiting plate; 502, semi-circular filter screen; 503, blocking block; 5031, first semi-circular block; 50311, first blocking strip; 5032, second semi-circular block; 50321, second blocking strip; 5033, handle; 6, opening and closing assembly; 601, L-shaped plate; 602, angle steel; 6021, fixing piece; 6022, bolt; 603, movable part; 604, U-shaped frame; 605, sealing cover; 6051, protrusion; 606, driving motor; 607, driving arm; 608, bolt; 609, driven arm; 610, fixing ear; 7, magnetic suction lock head; 8, fastener; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5, an automatic ventilation device, comprising a ventilation pipe 1, the upper part of the ventilation pipe 1 is connected to a connecting pipe 2 connected to the inside of the ventilation pipe 1, a circle of limiting ring 3 is arranged on the outer wall of the ventilation pipe 1 near the front end, a circle of sealing ring 4 is installed at the front end of the ventilation pipe 1 on the front side of the limiting ring 3, a blocking component 5 is arranged inside the ventilation pipe 1, and an opening and closing component 6 is connected to one side of the ventilation pipe 1; the blocking component 5 includes two groups of limiting cards 501 symmetrically connected to the inner wall of the ventilation pipe 1, a semicircular filter 502 is clamped between each group of limiting cards 501, and a blocking block 503 is installed on the front side of the semicircular filter 502; the opening and closing component 6 includes two L-shaped plates horizontally symmetrically connected on the outer wall of the ventilation pipe 1 601, the front end of the L-shaped plate 601 is connected by a vertical angle steel 602, and a U-shaped frame 604 is rotatably connected to the inner wall of the angle steel 602 through two movable parts 603, and a closed cover 605 is fixedly connected to one side of the U-shaped frame 604, and the closed cover 605 can be sleeved on the front end of the ventilation pipe 1, and a driving motor 606 is installed on the outer wall of one side of the angle steel 602, and a driving arm 607 is fixedly connected to the output shaft end of the lower part of the driving motor 606, and one end of the driving arm 607 away from the output shaft of the driving motor 606 is movably connected to one end of a driven arm 609 through a pin 608, and the other end of the driven arm 609 is hinged to a fixed ear 610 fixedly connected to the front surface of the closed cover 605.

[0025] It should be noted that the connecting pipe 2 is used to connect the fumigation pipe.

[0026] Each set of limit cards 501 includes two limit plates 5011 staggeredly arranged on the inner wall of the ventilation pipe 1 .

[0027] By setting the limit card 501 , the two limit plates 5011 of the limit card 501 can limit the semicircular filter screen 502 .

[0028] It should be noted that the position of the limit card 501 on the inner wall of the ventilation duct 1 is higher than the central axis of the duct in the vertical direction.

[0029] The blocking block 503 includes a first semicircular block 5031 and a second semicircular block 5032. A handle 5033 is installed on the front surface of each of the first semicircular block 5031 and the second semicircular block 5032. The first semicircular block 5031 and the second semicircular block 5032 can be spliced ​​and separated.

[0030] By providing the first semicircular block 5031 and the second semicircular block 5032, secondary sealing of the ventilation duct 1 can be achieved. When the closing cover 605 or the opening and closing component 6 is replaced or repaired, the two semicircular blocks can seal the ventilation duct 1. Secondly, the first semicircular block 5031 and the second semicircular block 5032 can also seal impurities and insects that enter the ventilation duct 1 due to the loose sealing of the closing cover 605.

[0031] Among them, a circular protrusion 6051 is provided on the inner surface of the closed cover 605.

[0032] Setting the protrusion 6051 can make the outer edge of the protrusion in close contact with the inner surface of the sealing ring 4, playing a sealing role.

[0033] Among them, a first stop strip 50311 is provided at the front end of the diameter end side of the first semi-circular block 5031, and a second stop strip 50321 is provided at the rear end of the diameter end side of the second semi-circular block 5032.

[0034] By setting the first stop strip 53311 and the second stop strip 50321, the second stop strip 50321 of the second semi-circular block 5032 can lean against the front surface of the diameter end of the first semi-circular block 5031, and the first stop strip 50311 of the first semi-circular block 5031 can lean against the rear surface of the diameter end of the second semi-circular block 5032, so that the sealing performance of the two semi-circular blocks is better.

[0035] Among them, the movable part 603 includes two fixing pieces 6021 fixedly connected to the inner wall of the angle steel 602, and a rotating shaft 6022 is rotatably connected between the two fixing pieces 6021 through a pin.

[0036] Among them, a magnetic lock head 7 is installed on one side of the closed cover 605, and a fastener 8 is installed on the side of the magnetic lock head 7 and at the side end of the limiting ring 3. The magnetic lock head 7 is magnetically connected to the fastener 8.

[0037] By energizing the magnetic lock head 7, the magnetic lock head 7 can be tightly connected to the fastener 8. At this time, the closed cover 605 is further tightly pressed and closed at the front end of the ventilation duct 1.

[0038] Among them, rubber layers are provided on the arc-shaped edges of the first semi-circular block 5031 and the second semi-circular block 5032.

[0039] By setting the rubber layers, the arc-shaped edges of the first semi-circular block 5031 and the second semi-circular block 5032 can better fit and seal with the inner wall of the air duct 1.

[0040] Embodiment 1:

[0041] Refer to Figures 1-5, the rear end of the ventilation pipe 1 is installed on the wall of the grain storage warehouse. When the grain storage warehouse needs ventilation, the control system will control the magnetic lock 7 to cut off the power, so that the magnetic lock 7 is disconnected from the fastener 8. At the same time, the control system will control the output shaft of the driving motor 606 to rotate, thereby driving the driving arm 607 connected to the output shaft to rotate. The driving arm 607 rotates and then drives the driven arm 609 to move through the pin 608. The driven arm 609 pulls the closing cover 605 through the fixed ear 610, so that the closing cover 605 rotates along with the U-shaped frame connected to it along the movable part 603. At this time, the front end of the ventilation pipe 1 will open. Then, hold the handles 5033 on the first semi-circular block 5031 and the second semi-circular block 5032 with both hands, and take out the first semi-circular block 5031 and the second semi-circular block 5032 from the ventilation pipe 1. At this time, only two semi-circular filters 502 are left in the ventilation pipe 1.

[0042] When cold storage ventilation is required for the grain pile in the warehouse in winter, the fan located in the warehouse will suck cold air from the outside into the grain pile through the ventilation pipe buried in the grain pile via the ventilation pipe 1, so as to carry out cold storage ventilation for the grain pile in the warehouse, which can effectively inhibit the heating and mildew of grains and delay the change of grain quality.

[0043] When heat dissipation is required in summer, the heat in the grain pile in the warehouse will be discharged to the external environment through the ventilation pipe 1.

[0044] Embodiment 2:

[0045] Refer to Figure 1 — Figure 5 , when the semi-circular filter 502 needs to be replaced, rotate the two semi-circular filters 502 along the two limit plates 5011, and turn the diameter ends of the two semi-circular filters 502 to the horizontal direction. At this time, the two ends of the lower semi-circular filter 502 will be disengaged from the two limit cards 5011. At this time, the lower semi-circular filter 502 can be taken out of the ventilation pipe 1, and then the upper filter 502 is also turned to the lower side. Similarly, the two ends of this semi-circular filter 502 will be disengaged from the two limit cards 5011, and this semi-circular filter 502 can also be taken out of the ventilation pipe 1.

[0046] The above is only the preferred embodiment of the present invention, and does not impose any form of limitation on the present invention; any ordinary technician in the industry can smoothly implement the present invention according to the instructions in the attached drawings and the above description; however, any slight changes, modifications and equivalent changes made by those skilled in the art within the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An automatic ventilation device, comprising a ventilation pipe (1), the upper part of the ventilation pipe (1) being connected to a connecting pipe (2) communicating with the interior of the ventilation pipe (1), characterized in that: A circle of limiting ring (3) is arranged on the outer wall of the ventilation pipe (1) near the front end, a circle of sealing ring (4) is installed at the front end of the ventilation pipe (1) in front of the limiting ring (3), a blocking component (5) is arranged inside the ventilation pipe (1), and an opening and closing component (6) is connected to one side of the ventilation pipe (1); The blocking assembly (5) comprises two groups of limit cards (501) symmetrically connected to the inner wall of the ventilation pipe (1), a semicircular filter screen (502) is clamped between each group of limit cards (501), and a blocking block (503) is installed on the front side of the semicircular filter screen (502); The opening and closing assembly (6) comprises two L-shaped plates (601) connected horizontally and symmetrically on the outer wall of the ventilation pipe (1); the front ends of the L-shaped plates (601) are connected via a vertical angle steel (602); a U-shaped frame (604) is rotatably connected to the inner wall of the angle steel (602) via two movable parts (603); a closing cover (605) is fixedly connected to one side of the U-shaped frame (604); and the closing cover (605) can be sleeved on the ventilation pipe (1). A driving motor (606) is installed on the outer wall of one side of the angle steel (602), and a driving arm (607) is fixedly connected to the end of the output shaft at the lower part of the driving motor (606). One end of the driving arm (607) away from the output shaft of the driving motor (606) is movably connected to one end of a driven arm (609) through a latch (608), and the other end of the driven arm (609) is hinged to a fixing ear (610) fixedly connected to the front surface of the closing cover (605).

2. An automatic ventilation device according to claim 1, characterized in that: Each set of the limit cards (501) comprises two limit plates (5011) staggeredly arranged on the inner wall of the ventilation pipe (1).

3. An automatic ventilation device according to claim 1, characterized in that: The blocking block (503) comprises a first semicircular block (5031) and a second semicircular block (5032), and a handle (5033) is installed on the front surface of each of the first semicircular block (5031) and the second semicircular block (5032), and the first semicircular block (5031) and the second semicircular block (5032) can be spliced ​​and separated.

4. An automatic ventilation device according to claim 1, characterized in that: A circular protrusion (6051) is provided on the inner surface of the closing cover (605).

5. The automatic ventilation device according to claim 3, characterized in that: A first stop bar (50311) is provided at the front end of the diameter end side surface of the first semicircular block (5031), and a second stop bar (50321) is provided at the rear end of the diameter end side surface of the second semicircular block (5032).

6. An automatic ventilation device according to claim 1, characterized in that: The movable member (603) comprises two fixing plates (6021) fixedly connected to the inner wall of the angle steel (602), and a rotating shaft (6022) is rotatably connected between the two fixing plates (6021) via a latch.

7. An automatic ventilation device according to claim 1, characterized in that: A magnetic lock head (7) is installed on one side of the closure cover (605), and a fastener (8) is installed on one side of the magnetic lock head (7) and at the side end of the limiting ring (3), and the magnetic lock head (7) is magnetically connected to the fastener (8).

8. An automatic ventilation device according to claim 3, characterized in that: The arc-shaped edges of the first semicircular block (5031) and the second semicircular block (5032) are provided with a rubber layer.

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