Grain blocking door opening and closing mechanism

Abstract

The utility model discloses a grain blocking door opening and closing mechanism, and relates to the technical field of grain blocking doors. The grain discharging device comprises a door frame, a door blocking assembly is installed on the inner wall of the door frame in a hinged mode, a material supporting assembly for supporting grains below a grain discharging opening is installed on the rear side of the door blocking assembly in a sliding mode, a lifting assembly for pulling up the material supporting assembly to ascend and descend is arranged on the front side of the door blocking assembly, and the lifting assembly is connected with the material supporting assembly. The servo motor drives the threaded rod to rotate, so that the sliding plate drives the material supporting assembly to move upwards, the lower supporting plate is lifted, most of grains below the grain discharging opening are supported by the lower supporting plate, the door blocking assembly is opened conveniently, the double-shaft motor drives the winding roller to rotate, the traction rope pulls the material supporting assembly to rotate, and the grain discharging opening is opened conveniently. When the grain blocking door is opened, one side of the lower supporting plate is lifted, so that grains supported on the lower supporting plate are discharged from the grain discharging opening, and the situation that the grains slide down and are accumulated in front of the door after the grain blocking door is opened is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of grain retaining doors, and particularly relates to an opening and closing mechanism for a grain retaining door. Background Art

[0002] The grain retaining door is also known as a thermal insulation door and a grain retaining board. The grain retaining door is often used at the opening of a granary and has a good airtight effect on the granary. It is divided into flat plate type, triangular type, arc type, etc. The grain retaining door mainly consists of a door frame, a door leaf, a grain discharging port, a handwheel locking device, etc. Chinese Patent with the publication number CN216741236U discloses a grain retaining door for a granary. In the utility model, a chute seat is respectively installed on two columns of the door frame through hinges. A vertical concave chute is arranged on the chute seat. One side of the short bottom door leaf is embedded in the concave chute and forms a clearance fit.

[0003] For this disclosed technology, it is necessary to discharge the grain behind the grain retaining door before opening the grain retaining door. To prevent the grain at the bottom of the grain discharging port from blocking the grain retaining door, depending on the liftable bottom door leaf, when the grain retaining door is opened, it passes over the top of the grain. However, when it is necessary to enter the granary for work, it is still necessary to clean and discharge the grain at the grain retaining door. Moreover, after the bottom door leaf is lifted, the grain piled up at the bottom will slide down and scatter to the ground due to the loss of one-side support, increasing the cleaning difficulty. Content of the Utility Model

[0004] To solve the above problems, the utility model provides an opening and closing mechanism for a grain retaining door.

[0005] The utility model specifically adopts the following technical solutions to achieve the above purpose: An opening and closing mechanism for a grain retaining door, including a door frame. A door retaining component is hingedly installed on the inner wall of the door frame. A material supporting component for lifting the grain below the grain discharging port is slidably installed at the rear side of the door retaining component. A lifting component for pulling up and down the material supporting component is arranged at the front side of the door retaining component, and the lifting component is connected to the material supporting component. A traction component for lifting and rotating the material supporting component is arranged at the front side of the door retaining component, and the traction component is connected to the material supporting component. A closing component is arranged on the surface of the material supporting component.

[0006] The door retaining component includes a door panel. The door panel is hingedly installed on the inner wall of the door frame. The number of the door panels is multiple groups, and multiple groups of door panels are arranged at equal intervals inside the door frame;

[0007] A handwheel locking piece is arranged on the surface of the door panel, and the handwheel locking piece is located between two groups of door panels. A grain discharging port is arranged on the surface of the door panel, and a discharge plate is slidably installed at the grain discharging port.

[0008] The material supporting component includes a lower baffle. The lower baffle is slidably installed at the rear side of the door panel. The bottom of the rear side of the lower baffle is hingedly installed with a lower supporting plate. A groove is arranged at the top of the lower supporting plate. A side supporting plate is fixedly installed on one side of the lower supporting plate.

[0009] The lifting assembly includes a sliding sleeve, a sliding sleeve is fixedly installed on the front side of the door panel, a servo motor is arranged on the top of the sliding sleeve, the output end of the servo motor penetrates through the top of the sliding sleeve and is fixedly connected with a threaded rod, a sliding plate is threadedly installed on the surface of the threaded rod, and the sliding plate is in fit with the inner wall of the sliding sleeve, and the bottom end of the sliding plate is fixedly connected with the front side of the lower baffle plate;

[0010] A guide rod is fixedly installed on the rear side of the door panel, and the guide rod is slidably inserted into the front side of the lower baffle plate.

[0011] The traction assembly includes a double-shaft motor, a double-shaft motor is arranged on the front side of the sliding sleeve through a support plate, the output end of the double-shaft motor is fixedly connected with a rotating shaft, a winding roller is rotatably installed on the front side of the door panel through a connecting plate, and one end of the winding roller is fixedly connected with the free end of the rotating shaft, a traction rope is wound on the surface of the winding roller, and the traction rope passes through the door panel and is connected with the top of the lower support plate;

[0012] The number of the rotating shaft, the winding roller and the traction rope is two groups, and the two groups are symmetrically arranged on both sides of the double-shaft motor.

[0013] The closing assembly includes a closing plate, a through groove is formed in the surface of the lower baffle plate, and the through groove corresponds to the grain discharging port of the door panel, a closing plate is slidably installed at the through groove, an electric push rod is fixedly installed on the rear side of the lower baffle plate, and the free end of the electric push rod is connected with the bottom of the electric push rod.

[0014] The number of the material supporting assemblies is two groups, and the two groups of material supporting assemblies are symmetrically arranged, and the two side supporting plates are in fit with each other when the door panel is closed.

[0015] The beneficial effects of the present utility model are as follows:

[0016] In the present utility model, the servo motor drives the threaded rod to rotate, so that the sliding plate drives the material supporting assembly to move upwards, the lower support plate is lifted, and most of the grains below the grain discharging port are supported by the lower support plate, which is convenient for opening the baffle door assembly and performing corresponding operations in the granary. The double-shaft motor drives the winding roller to rotate, so that the traction rope pulls the material supporting assembly to rotate, and one side of the lower support plate is lifted, so that the grains supported on the lower support plate are discharged from the grain discharging port, avoiding the situation that there are still a large number of grains after the grain baffle door is opened and the grains slide and accumulate in front of the door. The electric push rod drives the closing plate to move, opening the through groove at the lower baffle plate to communicate with the grain discharging port, and discharging the grains supported at the lower support plate. Description of the Drawings

[0017] Figure 1 is a first perspective three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 It is a schematic three-dimensional structure diagram of the second perspective of the present utility model;

[0019] Figure 3 It is a schematic diagram of the first partial structure of the present utility model;

[0020] Figure 4 It is a schematic diagram of the second partial structure of the present utility model.

[0021] Reference numerals: 1, door frame; 2, door blocking assembly; 201, door panel; 202, handwheel locking member; 203, discharge plate; 3, material supporting assembly; 301, lower baffle; 302, lower supporting plate; 303, groove; 304, side supporting plate; 4, lifting assembly; 401, sliding sleeve; 402, servo motor; 403, threaded rod; 404, sliding plate; 405, guide rod; 5, traction assembly; 501, double-shaft motor; 502, rotating shaft; 503, winding roller; 504, traction rope; 6, closing assembly; 601, closing plate; 602, electric push rod. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, 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.

[0023] As Figures 1-4 shown, a grain blocking door opening and closing mechanism includes a door frame 1. A door blocking assembly 2 is hingedly installed on the inner wall of the door frame 1. A material supporting assembly 3 for supporting the grain below the grain discharge opening is slidably installed at the rear side of the door blocking assembly 2. A lifting assembly 4 for pulling up the material supporting assembly 3 to lift is arranged at the front side of the door blocking assembly 2, and the lifting assembly 4 is connected to the material supporting assembly 3. A traction assembly 5 for lifting and rotating the material supporting assembly 3 is arranged at the front side of the door blocking assembly 2, and the traction assembly 5 is connected to the material supporting assembly 3. A closing assembly 6 is arranged on the surface of the material supporting assembly 3; specifically, the grain accumulated in the granary is protected by the door blocking assembly 2 to prevent it from sliding down. The lifting assembly 4 drives the material supporting assembly 3 to move upward, lifting the material supporting assembly 3, so that most of the grain below the grain discharge opening is supported by the material supporting assembly 3, facilitating the opening of the door blocking assembly 2 and performing corresponding operations in the granary. The traction assembly 5 drives the material supporting assembly 3 to rotate, lifting one side of the material supporting assembly 3, so that the grain supported by the material supporting assembly 3 is discharged from the grain discharge opening, avoiding the situation that there is still a large amount of grain after the grain blocking door is opened and the grain slides down and accumulates in front of the door. The closing assembly 6 opens the opening at the material supporting assembly 3 to communicate with the grain discharge opening, and discharges the grain supported at the material supporting assembly 3.

[0024] The door blocking assembly 2 includes a door panel 201. The door panel 201 is hingedly installed on the inner wall of the door frame 1. The number of the door panels 201 is multiple groups, and the multiple groups of door panels 201 are arranged at equal intervals inside the door frame 1;

[0025] The surface of the door panel 201 is provided with a handwheel locking member 202, and the handwheel locking member 202 is located between two groups of door panels 201. A grain discharge opening is formed on the surface of the door panel 201, and a discharge plate 203 is slidably installed at the grain discharge opening; specifically, the door panel 201 is used to block the accumulation of grain in the granary from sliding down to protect it, the handwheel locking member 202 makes the two side door panels 201 closely connected, and the discharge plate 203 controls the opening and closing of the grain discharge opening.

[0026] The material supporting component 3 includes a lower baffle 301. The lower baffle 301 is slidably installed at the rear side of the door panel 201. The bottom of the rear side of the lower baffle 301 is hinged with a lower supporting plate 302. A groove 303 is formed at the top of the lower supporting plate 302. A side supporting plate 304 is fixedly installed on one side of the lower supporting plate 302; specifically, the lower supporting plate 302 is used to support and convey the grain below the grain discharge opening, scoop it up, which is convenient for discharging the grain at this place to prevent situations such as the grain sliding to the outside when the grain blocking door is opened.

[0027] The lifting component 4 includes a sliding sleeve 401. The sliding sleeve 401 is fixedly installed at the front side of the door panel 201. A servo motor 402 is arranged at the top of the sliding sleeve 401. The output end of the servo motor 402 penetrates through the top of the sliding sleeve 401 and is fixedly connected with a threaded rod 403. A slide plate 404 is threadedly installed on the surface of the threaded rod 403, and the slide plate 404 is in close fit with the inner wall of the sliding sleeve 401. The bottom end of the slide plate 404 is fixedly connected with the front side of the lower baffle 301;

[0028] A guide rod 405 is fixedly installed at the rear side of the door panel 201, and the guide rod 405 is slidably inserted into the front side of the lower baffle 301; specifically, the servo motor 402 drives the threaded rod 403 to rotate, the threaded rod 403 drives the slide plate 404 to slide inside the sliding sleeve 401, thereby pulling the lower baffle 301 to move up and down, and the guide rod 405 makes the up and down movement process of the lower baffle 301 more stable.

[0029] The traction component 5 includes a double-shaft motor 501. The double-shaft motor 501 is arranged at the front side of the sliding sleeve 401 through a support plate. The output end of the double-shaft motor 501 is fixedly connected with a rotating shaft 502. A winding roller 503 is rotatably installed at the front side of the door panel 201 through a connecting plate, and one end of the winding roller 503 is fixedly connected with the free end of the rotating shaft 502. A traction rope 504 is wound around the surface of the winding roller 503, and the traction rope 504 passes through the door panel 201 and is connected with the top of the lower supporting plate 302;

[0030] There are two sets of the rotating shaft 502, the winding roller 503 and the towing rope 504, and the two sets are symmetrically arranged on both sides of the double-shaft motor 501. Specifically, the double-shaft motor 501 drives the rotating shaft 502 to rotate, the rotating shaft 502 drives the winding roller 503 to rotate, and the winding roller 503 winds the towing rope 504 thereon, so that the towing rope 504 pulls the lower support plate 302 to rotate along the rear bottom of the lower baffle 301.

[0031] The closing assembly 6 includes a closing plate 601. A through groove is formed on the surface of the lower baffle 301, and the through groove corresponds to the grain discharging port of the door panel 201. The closing plate 601 is slidably installed at the through groove, and an electric push rod 602 is fixedly installed at the rear side of the lower baffle 301. The free end of the electric push rod 602 is connected to the bottom of the electric push rod 602. Specifically, the electric push rod 602 drives the closing plate 601 to slide inside the through groove to control the opening and closing of the through groove, so as to discharge the grain accumulated on the lower support plate 302 from the grain discharging port.

[0032] There are two sets of the material supporting assemblies 3, and the two sets of the material supporting assemblies 3 are symmetrically arranged. The two side support plates 304 are in a fitting arrangement when the door panel 201 is closed.

[0033] In summary, when the present utility model is in use, when the staff needs to open the grain baffle door, first open the discharge plate 203 to discharge the grain accumulated at the rear side of the grain baffle door from the grain discharging port. After the grain above the grain discharging port is discharged, start the servo motor 402 to drive the threaded rod 403 to rotate, so that the sliding plate 404 drives the lower baffle 301 to slide upward on the rear side of the door panel 201. The lower support plate 302 and the side support plates 304 lift most of the grain thereon to the grain discharging port. Start the electric push rod 602 on one side of the door panel 201 to drive the closing plate 601 to move upward, communicate the through groove with the grain discharging port, and at the same time start the double-shaft motor 501 to drive the rotating shaft 502 to rotate, so that the towing rope 504 on the winding roller 503 is tightened, pulling one side of the lower support plate 302 to lift, guiding and promoting the grain on the lower support plate 302 to be discharged from the grain discharging port. After the grain on one side of the lower support plate 302 and the side support plates 304 is discharged, then start the lifting assembly 4 and the towing assembly 5 at the other side of the door panel 201 to discharge the grain at that place, avoiding the situation that after the grain baffle door is opened, a large amount of grain accumulates below the grain discharging port and slides to the outside.

Claims

1. A grain blocking door opening and closing mechanism, characterized in that: The invention comprises a door frame (1), the inner wall of the door frame (1) is hingedly mounted with a door blocking assembly (2), the rear side of the door blocking assembly (2) is slidably mounted with a material supporting assembly (3) for supporting grain below a grain outlet, the front side of the door blocking assembly (2) is provided with a lifting assembly (4) for pulling up and lowering the material supporting assembly (3), and the lifting assembly (4) is connected to the material supporting assembly (3), the front side of the door blocking assembly (2) is provided with a traction assembly (5) for lifting and rotating the material supporting assembly (3), and the traction assembly (5) is connected to the material supporting assembly (3), and the surface of the material supporting assembly (3) is provided with a closing assembly (6).

2. A grain blocking door opening and closing mechanism according to claim 1, characterized in that: The door-blocking assembly (2) comprises a door panel (201), the inner wall of the door frame (1) being hingedly mounted with the door panel (201), the door panels (201) being provided in a plurality of groups, and the plurality of groups of door panels (201) being arranged at equal distances inside the door frame (1); A handwheel locking member (202) is provided on the surface of the door panel (201), and the handwheel locking member (202) is located between the two groups of door panels (201). A grain discharge opening is opened on the surface of the door panel (201), and a discharge plate (203) is slidably installed at the grain discharge opening.

3. A grain blocking door opening and closing mechanism according to claim 2, characterized in that: The material supporting assembly (3) comprises a lower baffle (301), the lower baffle (301) is slidably mounted on the rear side of the door panel (201), a lower support plate (302) is hingedly mounted on the rear bottom of the lower baffle (301), a groove (303) is formed on the top of the lower support plate (302), and a side support plate (304) is fixedly mounted on one side of the lower support plate (302).

4. A grain blocking door opening and closing mechanism according to claim 2, characterized in that: The lifting assembly (4) comprises a sliding sleeve (401), the sliding sleeve (401) is fixedly mounted on the front side of the door panel (201), a servo motor (402) is arranged on the top of the sliding sleeve (401), the output end of the servo motor (402) passes through the top of the sliding sleeve (401) and is fixedly connected to a threaded rod (403), a slide plate (404) is threadedly mounted on the surface of the threaded rod (403), and the slide plate (404) is arranged to fit the inner wall of the sliding sleeve (401), and the bottom end of the slide plate (404) is fixedly connected to the front side of the lower baffle (301); A guide rod (405) is fixedly mounted on the rear side of the door panel (201), and the guide rod (405) is slidably plugged into the front side of the lower baffle (301).

5. A grain blocking door opening and closing mechanism according to claim 4, characterized in that: The traction assembly (5) comprises a double-axis motor (501), the front side of the sliding sleeve (401) is provided with a double-axis motor (501) via a support plate, the output end of the double-axis motor (501) is fixedly connected to a rotating shaft (502), the front side of the door panel (201) is rotatably provided with a winding roller (503) via a connecting plate, and one end of the winding roller (503) is fixedly connected to the free end of the rotating shaft (502), a traction rope (504) is wound around the surface of the winding roller (503), and the traction rope (504) passes through the door panel (201) and is connected to the top of the lower support plate (302); The rotating shaft (502), the winding roller (503) and the traction rope (504) are provided in two groups, and the two groups are symmetrically arranged on both sides of the double-axis motor (501).

6. A grain blocking door opening and closing mechanism according to claim 3, characterized in that: The closing assembly (6) comprises a closing plate (601), a through groove is provided on the surface of the lower baffle plate (301), and the through groove is arranged corresponding to the grain discharge opening of the door plate (201), the closing plate (601) is slidably installed at the through groove, and an electric push rod (602) is fixedly installed on the rear side of the lower baffle plate (301), and the free end of the electric push rod (602) is connected to the bottom of the electric push rod (602).

7. A grain blocking door opening and closing mechanism according to claim 3, characterized in that: The number of the supporting components (3) is two groups, and the two groups of supporting components (3) are symmetrically arranged, and the two groups of side supporting plates (304) are arranged in close contact when the door panel (201) is closed.

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