Opening and closing device for grain outlet of granary

Abstract

The utility model discloses an opening and closing device for a grain outlet of a granary, which comprises a grain outlet pipe, the bottom of the grain outlet pipe is communicated with the top of a bottom pipe, the side wall of the joint of the grain outlet pipe and the bottom pipe is provided with a communicated side pipe, the end part of the side pipe is fixedly connected with a support plate, the top of the support plate is provided with a sliding chute, and the top of the sliding chute is provided with an opening. A sliding block is slidably connected into the sliding groove, a motor is fixedly connected to the top of the sliding block, an air cylinder is fixedly connected to one end of the motor, a coupler is fixedly connected to the output end of the motor, a rotating shaft is fixedly connected to one end of the coupler, and spiral blades are fixedly connected to the side wall of the rotating shaft. The two sets of spiral blades are symmetrically arranged relative to the rotating shaft, a blade plate is arranged in the middle of each spiral blade, and the spiral blades are rotationally connected with the interior of the side pipe through the motor, so that the problem that the grain outlet of the granary needs to be closed through external force is solved, installation is convenient, and operation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of grain storage, in particular to an opening and closing device for a grain outlet of a granary. Background Art

[0002] my country is a big agricultural country, and grain storage is extremely important. Modern granary buildings focus on moisture-proof and insect-proof. Usually, the main body of the granary is erected at a certain height above the ground through a supporting structure, and the grain outlet is set at the bottom of the granary. A switch door is usually set at the closed part of the triangular structure at the bottom of the granary, which serves to close the grain outlet pipeline of the granary.

[0003] In the prior art, sliding doors are generally used for opening and closing doors. When using this type of door, due to the weight of the grain, the sliding door is difficult to insert, open or close, and often requires staff to close it manually. The closing time is long, and opening or closing is troublesome, resulting in a waste of human and material resources. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide an opening and closing device for a grain outlet of a granary to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A device for opening and closing a grain outlet of a granary, comprising a grain outlet pipe, the bottom of the grain outlet pipe being connected to the top of a bottom pipe, a side pipe being arranged on a side wall at a junction of the grain outlet pipe and the bottom pipe, a support plate being fixedly connected to the end of the side pipe, a slide groove being arranged on the top of the support plate, a slider being slidably connected to the inside of the slide groove, a motor being fixedly connected to the top of the slider, a cylinder being fixedly connected to one end of the motor, a coupling being fixedly connected to the output end of the motor, a rotating shaft being fixedly connected to one end of the coupling, a spiral blade being fixedly connected to the side wall of the rotating shaft, two groups of spiral blades being arranged symmetrically with respect to the rotating shaft, a blade plate being arranged in the middle of the spiral blade, and the spiral blade being rotationally connected to the inside of the side pipe through the motor.

[0007] Preferably, a spring is fixedly connected to the center of the blade, a buffer block is fixedly connected to one end of the spring, and the buffer block is slidably connected to the inside of the blade via the spring.

[0008] Preferably, the buffer blocks and the springs are provided in two groups and are symmetrically arranged relative to the center of the blade.

[0009] Preferably, the buffer block is made of rubber material, and the buffer block is located at the center of the blade.

[0010] Preferably, the front and rear end side walls of the rotating shaft are both fixedly connected with baffles, and the width of the sliding groove is the same as the width of the sliding block.

[0011] Preferably, the width of the blade is the same as the interval width of the spiral blade, and the blade is welded to the middle of the spiral blade.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model welds a blade with the same spacing width as the spiral blades in the middle of the two spiral blades, so that when the blade rotates parallel to the blade, the grain cannot fall and the grain outlet pipe can be easily closed. When the grain outlet pipe needs to be opened, the motor rotates in the opposite direction, and the cylinder drives the motor to gradually separate from the inside of the side pipe, which facilitates the opening and closing of the entire device, thereby solving the problem of needing external force to close and greatly reducing the waste of human and material resources.

[0014] 2. The utility model provides buffer blocks and springs on the front and back sides of the blade. Through the cooperation of the buffer blocks and the springs, when the blade is inserted into the grain, the spring bears the gravity of the falling grain to cause the buffer block to bend and deform, thereby causing the spring to slide inside the blade, thereby buffering the gravity of the falling grain on the blade and improving the service life of the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure of the spiral blades of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the blade of the utility model.

[0019] In the figure: 1. grain outlet pipe; 2. side pipe; 3. bottom pipe; 4. support plate; 5. cylinder; 6. motor; 7. coupling; 8. rotating shaft; 9. baffle; 10. spiral blade; 11. blade; 12. buffer block; 13. spring; 14. slide groove; 15. slider. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figures 1 to 3 As shown, an embodiment of the utility model provides an opening and closing device for a grain outlet of a granary, comprising a grain outlet pipe 1, the bottom of the grain outlet pipe 1 is connected to the top of the bottom pipe 3, the side wall of the joint of the grain outlet pipe 1 and the bottom pipe 3 is provided with a connected side pipe 2, the end of the side pipe 2 is fixedly connected with a support plate 4, the top of the support plate 4 is provided with a slide groove 14, the inside of the slide groove 14 is slidably connected with a slider 15, the top of the slider 15 is fixedly connected with a motor 6, one end of the motor 6 is fixedly connected with a cylinder 5, the output end of the motor 6 is fixedly connected with a coupling 7, one end of the coupling 7 is fixedly connected with a rotating shaft 8, the side wall of the rotating shaft 8 is fixedly connected with a spiral blade 10, the spiral blade 10 is provided with two groups and is symmetrically arranged relative to the rotating shaft 8, the middle part of the two spiral blades 10 is provided with a blade plate 11, and the spiral blade 10 is connected to the inside of the side pipe 2 through the motor 6 for rotation.

[0022] Through the above-mentioned structural arrangement, when it is necessary to close the grain outlet pipe 1 of the granary, the spiral blades 10 are symmetrically arranged at the bottom of the grain outlet pipe 1 and the top of the bottom pipe 3 in a spiral structure with the same diameter. Since the grain outlet pipe 1 and the bottom pipe 3 are pipe sleeve structures with the same diameter, when it is necessary to close, the motor 6 is turned on and the cylinder 5 is started at the same time, so that the motor 6 slides inside the slide groove 14 through the slider 15, and then enters the inside of the side pipe 2. When the driving shaft 8 and the spiral blades 18 are inserted into the grain, the rotational force thereof is greater than the gravity of the material being discharged. A blade plate 11 with the same diameter as the spiral blades 10 is arranged in the middle of the two spiral blades 10. When rotating parallel to the blade plate 11, the grain cannot fall, and the grain outlet pipe 1 can be easily closed. When it is necessary to open the grain outlet pipe 1 of the granary, the motor 6 rotates in the opposite direction, and the cylinder 5 drives the motor 6 to gradually separate from the inside of the side pipe 2, so that the opening and closing of the entire device are convenient and quick, saving human and material resources.

[0023] On the basis of the above embodiment, a spring 13 is fixedly connected to the center of the inside of the blade 11, and a buffer block 12 is fixedly connected to one end of the spring 13. The buffer block 12 is slidably connected to the inside of the blade 11 through the spring 13. There are two groups of buffer blocks 12 and springs 13, and they are symmetrically arranged relative to the center of the blade 11. Through the cooperation of the buffer blocks 12 and the springs 13, when the device is inserted into the falling grain, the spring 13 bears the gravity of the falling grain to make the buffer block 12 bend and deform, so that the spring 13 slides inside the blade 11, thereby being able to buffer the gravity of the falling grain on the blade 11.

[0024] Specifically, the buffer block 12 is made of rubber material, and the buffer block 12 is located in the center of the blade 11. Since rubber is a material with a certain energy absorption effect, it can effectively buffer the impact force and vibration of the falling food, thereby increasing the service life of the blade 11. Of course, the buffer block 12 can also be made of other materials, and the utility model does not make specific limitations here.

[0025] like Figure 2 As shown, the front and rear end side walls of the rotating shaft 8 are fixedly connected with baffles 9, and the width of the chute 14 is the same as the width of the slider 15. The setting of the baffle 9 can effectively prevent the dust generated by the grain from flowing into the air when working inside the side tube 2, effectively protecting the health of the staff, and at the same time can also withstand the gravity of the grain on the spiral blade 10 and the blade 11, further play a supporting role, and ensure the overall stability of the device. In addition, by setting the chute 14 and the slider 15, it is easy to enter and exit the internal components of the side tube 2, achieving an effect of easy control.

[0026] In addition, the width of the blade 11 is the same as the spacing width between the two spiral blades 10. The blade 11 is welded to the middle of the two spiral blades 10 and is inserted into the interior of the side tube 2 in a spiral manner. During insertion, the spiral blades 10 and the blade 11 can be used as a switch door to withstand falling grain, thereby solving the problem of requiring external force to close. The installation is convenient and the operation is simple.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An opening and closing device for a grain outlet of a granary, comprising a grain outlet pipe (1), characterized in that: The bottom of the grain outlet pipe (1) is connected to the top of the bottom pipe (3); a side pipe (2) connected to the grain outlet pipe (1) is provided on the side wall of the joint between the grain outlet pipe (1) and the bottom pipe (3); a support plate (4) is fixedly connected to the end of the side pipe (2); a slide groove (14) is provided on the top of the support plate (4); a slider (15) is slidably connected to the inside of the slide groove (14); a motor (6) is fixedly connected to the top of the slider (15); a cylinder (5) is fixedly connected to one end of the motor (6); a coupling (7) is fixedly connected to the output end of the motor (6); a rotating shaft (8) is fixedly connected to one end of the coupling (7); a spiral blade (10) is fixedly connected to the side wall of the rotating shaft (8); two groups of spiral blades (10) are provided and are symmetrically arranged relative to the rotating shaft (8); a blade plate (11) is provided in the middle of the spiral blade (10); and the spiral blade (10) is rotatably connected to the inside of the side pipe (2) through the motor (6).

2. The opening and closing device for the grain outlet of a granary according to claim 1, characterized in that: A spring (13) is fixedly connected to the center of the blade (11), one end of the spring (13) is fixedly connected to a buffer block (12), and the buffer block (12) is slidably connected to the inside of the blade (11) via the spring (13).

3. The opening and closing device for the grain outlet of a granary according to claim 2, characterized in that: The buffer blocks (12) and the springs (13) are provided in two groups and are symmetrically arranged relative to the center of the blade (11).

4. The opening and closing device for the grain outlet of a granary according to claim 2, characterized in that: The buffer block (12) is made of rubber material, and the buffer block (12) is located at the center of the blade (11).

5. The opening and closing device for the grain outlet of a granary according to claim 1, characterized in that: The front and rear end side walls of the rotating shaft (8) are both fixedly connected to baffles (9), and the width of the sliding groove (14) is the same as the width of the sliding block (15).

6. The opening and closing device for the grain outlet of a granary according to claim 1, characterized in that: The width of the blade (11) is the same as the spacing width of the spiral blade (10), and the blade (11) is welded to the middle of the spiral blade (10).

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