Vegetable greenhouse ventilation device

Abstract

The utility model belongs to the technical field of agricultural greenhouses, and particularly relates to a vegetable greenhouse ventilation device which comprises two fixing plates, a front ventilation frame and a plurality of rear ventilation frames, mounting plates are mounted on the fixing plates, a motor is fixedly connected to one side of one mounting plate, a threaded rod is fixedly connected to the driving end of the motor, and the threaded rod is fixedly connected to the other side of the mounting plate. One end of the front ventilation frame and one end of the rear ventilation frame are slidably connected with a front sliding frame and a rear sliding frame respectively, and two connecting blocks are fixedly connected to the front sliding frame; the position of a connecting block fixedly connected with the outer wall of a front sliding frame can be adjusted through a motor and a threaded rod, and a plurality of rear sliding frames and the front sliding frame can synchronously move in cooperation with a transverse rod, so that the device can rapidly enable a front ventilation frame and a rear ventilation frame to conduct ventilation, and meanwhile, the ventilation position can be rapidly closed to protect the front ventilation frame and the rear ventilation frame; and a sealing plate which is in sliding connection with the inner wall of the rear sliding frame or the front sliding frame can be independently opened for ventilation when other front ventilation frames or rear ventilation frames are closed.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural greenhouses, and particularly relates to a ventilation device for a vegetable greenhouse. Background Art

[0002] The ventilation device for a vegetable greenhouse is an important device to ensure a suitable environment inside the greenhouse and the healthy growth of crops. In areas with less wind resources or weaker wind power, the natural ventilation effect of the greenhouse is not good, and more exhaust fans are needed to strengthen ventilation. In areas where it is hot and stuffy and there is little wind in summer, multiple exhaust fans working together can better maintain a comfortable environment inside the greenhouse;

[0003] When using multiple groups of exhaust fans to connect the space inside the greenhouse with the outside world, when it is necessary to maintain the environment inside the greenhouse and the exhaust fans need to be closed, multiple groups of exhaust fans need to be closed, which is not convenient for the staff to quickly control the ventilation of the greenhouse. At the same time, when a small amount of ventilation is required inside the greenhouse and some of the exhaust fans need to be opened separately while the rest are airtight, it is not convenient to control each group of fans simultaneously and perform separate opening and closing, so the existing airtight exhaust fans are not conducive to the random control of the ventilation method of the greenhouse. Content of the Utility Model

[0004] The utility model provides a ventilation device for a vegetable greenhouse, which has the characteristic of solving the problem that the existing airtight exhaust fans are not conducive to the random control of the ventilation method of the greenhouse.

[0005] The utility model provides the following technical solution: It includes two fixing plates, a front ventilation frame and several rear ventilation frames. An installation plate is installed on the fixing plate. One side of one of the installation plates is fixedly connected with a motor, and the driving end of the motor is fixedly connected with a threaded rod. Support frames for connecting and supporting with the greenhouse wall are fixedly connected to the outer walls of the front ventilation frame and the rear ventilation frames. A front sliding frame and a rear sliding frame are respectively slidably connected to one ends of the front ventilation frame and the rear ventilation frames. Two connecting blocks are fixedly connected to the front sliding frame, and the threaded rod is threadedly connected with one of the connecting blocks. The front sliding frame and the rear sliding frame are connected by a cross bar, and several rear sliding frames are connected by the cross bar. Sealing plates are slidably connected to the inner walls of the rear sliding frame and the front sliding frame.

[0006] Wherein, corresponding connection holes are opened on the fixing plate and the installation plate, and the connection holes are connected by a connecting rod. One of the cross bars penetrates through the other installation plate.

[0007] Wherein, a support plate for supporting the rear sliding frame is fixedly connected to the bottom ends of several support frames. A sliding groove is opened at the top of the support plate, and a front sliding frame matching with the sliding groove is fixedly connected to the bottom end of the rear sliding frame.

[0008] Among them, one end of the rear sliding carriage and the front sliding carriage are both fixedly connected with limiting blocks. Limiting grooves are provided on the rear sliding carriage, the front sliding carriage and the limiting blocks. The outer wall of the sealing plate is fixedly connected with sliding blocks matching the limiting grooves. Filter meshes are installed on the inner walls of the front ventilation frame and the rear ventilation frame.

[0009] Among them, one side of one of the mounting plates is fixedly connected with a limiting rod, and the limiting rod is slidably connected with the other connecting block.

[0010] The beneficial effects of the present utility model are as follows: Through the motor and the threaded rod, the position of the connecting block fixedly connected to the outer wall of the front sliding carriage can be adjusted. Cooperating with the cross bar, a plurality of rear sliding carriages and the front sliding carriage can be displaced synchronously. Thus, when the device enables the front ventilation frame and the rear ventilation frame to ventilate quickly, it can quickly close the ventilation position for protection. Additionally, cooperating with the sealing plate slidably connected to the inner wall of the rear sliding carriage or the front sliding carriage, when the other front ventilation frame or rear ventilation frame is closed, it can be opened independently for ventilation, enabling the greenhouse to conduct a small amount of ventilation work, which is beneficial for the staff to ventilate the inner cavity of the greenhouse.

[0011] The parts not involved in this device are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0013] Figure 2 is a movement schematic diagram of the rear sliding carriage and the front sliding carriage in the present utility model;

[0014] Figure 3 is a movement schematic diagram of the sealing plate in the present utility model;

[0015] Figure 4 is the present utility model Figure 1 an enlarged schematic diagram of A in;

[0016] Figure 5 is the present utility model Figure 3 an enlarged schematic diagram of B in.

[0017] In the figure: 1, fixed plate; 11, mounting plate; 12, connection hole; 13, connecting rod; 2, front ventilation frame; 21, rear ventilation frame; 22, support frame; 23, support plate; 231, chute; 24, rear sliding carriage; 241, front sliding carriage; 242, connecting block; 25, sealing plate; 251, sliding block; 26, limiting block; 261, limiting groove; 27, filter mesh; 3, motor; 31, threaded rod; 32, limiting rod; 33, cross bar. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Please refer to Figures 1 - 5, the present utility model provides the following technical solutions: It includes two fixed plates 1, a front ventilation frame 2 and several rear ventilation frames 21. An installation plate 11 is installed on the fixed plate 1. One side of one installation plate 11 is fixedly connected with a motor 3, and the driving end of the motor 3 is fixedly connected with a threaded rod 31. Support frames 22 for connecting and supporting with the greenhouse wall are fixedly connected to the outer walls of the front ventilation frame 2 and the rear ventilation frames 21. A front sliding frame 241 and a rear sliding frame 24 are respectively slidably connected to one end of the front ventilation frame 2 and the rear ventilation frames 21. Two connecting blocks 242 are fixedly connected to the front sliding frame 241, and the threaded rod 31 is threadedly connected to one of the connecting blocks 242. The front sliding frame 241 and the rear sliding frame 24 are connected by a cross bar 33. Several rear sliding frames 24 are connected by a cross bar 33. Sealing plates 25 are slidably connected to the inner walls of the rear sliding frame 24 and the front sliding frame 241.

[0019] In this implementation: The fixed plate 1 is the carrier of the loading device and is fixed to the side of the greenhouse frame through two fixed plates 1, so that the mounting plate 11 is installed and fixed on the fixed plate 1. One of the mounting plates 11 is used to install the motor 3, and the driving end of the motor 3 is connected to the threaded rod 31, so that the threaded rod 31 can rotate under the drive of the motor 3. A number of support frames 22 installed on the greenhouse frame can support the front ventilation frame 2 and the rear ventilation frame 21. A front ventilation frame 2 is located near the motor 3, and a number of rear ventilation frames 21 are evenly distributed on the side of the front ventilation frame 2. The front sliding frame 241 and the rear sliding frame 24 slidably connected to one side of the front ventilation frame 2 and the rear ventilation frame 21 can close the inner wall of the front ventilation frame 2, and the fan installed on the inner wall of the front ventilation frame 2 can extract the air in the greenhouse, so as to replace the air in the greenhouse and play a role in ventilation. When not in use, in order to ensure the temperature environment in the greenhouse, at this time, the rear sliding frame 24 and the front sliding frame 241 can be respectively located on one side of the rear ventilation frame 21 and the front ventilation frame 2 to close one side of them. When ventilation is required, at this time, the threaded rod 31 is threadedly connected to the connecting block 242 fixedly connected to the outer wall of the front sliding frame 241. When the threaded rod 31 rotates under the drive of the motor 3, the position of the connecting block 242 on the threaded rod 31 can be adjusted, so that the position of the front sliding frame 241 can be adjusted under the drive of the motor 3, so that it can be misaligned with the inner cavity of the front ventilation frame 2, and the internal space of the greenhouse can be communicated with the external air through the front ventilation frame 2, and cooperate with the fan in the front ventilation frame 2 to replace the air. At the same time, when the position of the front sliding frame 241 is adjusted, the front sliding frame 241 and the rear sliding frame 24 slidably connected to one side of the rear ventilation frame 21 are connected by a cross bar 33. When the front sliding frame 241 is displaced, the rear sliding frame 24 can perform synchronous displacement. At the same time, a number of rear sliding frames 24 are connected by a cross bar 33, so that a number of rear sliding frames 24 and the front sliding frame 241 can be synchronously corresponding or misaligned with the positions of the rear ventilation frame 21 and the front ventilation frame 2, so as to quickly adjust their positions and then start the fan to ventilate the inner cavity of the greenhouse. When small-displacement ventilation is required, the sealing plate 25 slides on the inner wall of the rear sliding frame 24. At this time, by pushing the sealing plate 25 outwards, the sealing plate 25 slidably connected to the inner walls of the rear sliding frame 24 and the front sliding frame 241 can be misaligned with them. At this time, according to actual needs, the number of the front ventilation frame 2 or the rear ventilation frame 21 that needs to be ventilated can be selected to adjust the position of the sealing plate 25, so that the device can quickly ventilate, while closing the ventilation position for protection and performing small-volume ventilation work, which is beneficial for the staff to ventilate the inner cavity of the greenhouse.

[0020] Corresponding connection holes 12 are provided on both the fixing plate 1 and the mounting plate 11. The connection holes 12 are connected by a connecting rod 13. One of the cross bars 33 penetrates through the other mounting plate 11. The connection holes 12 provided on the fixing plate 1 and the mounting plate 11 are used to enable the fixing plate 1 and the mounting plate 11 to be connected through the connecting rod 13 to the connection holes 12, so that the mounting plate 11 is fixed on the fixing plate 1, and the motor 3 is mounted and fixed, so that the front sliding frame 241 can be supported on one side of the front ventilation frame 2. The cross bar 33 fixedly connected to one side of the last rear sliding frame 24 penetrates through the other mounting plate 11, so that the cross bar 33 can slide on the other mounting plate 11, and several rear sliding frames 24 can be effectively limited by the cross bar 33. Ensure that when it is displaced, it corresponds to one end face of the rear ventilation frame 21, and ensure that when it is reset, one side of the rear ventilation frame 21 and the front ventilation frame 2 is closed.

[0021] A plurality of support frames 22 are fixedly connected to the bottom end with a support plate 23 for supporting the rear sliding frame 24. A sliding groove 231 is provided at the top of the support plate 23. The bottom end of the rear sliding frame 24 is fixedly connected with a front sliding frame 241 that matches the sliding groove 231. The support plate 23 fixedly connected to the bottom end of the support frame 22 can support the sliding of the rear sliding frame 24, so that it cooperates with the limit of the cross bar 33 to ensure the horizontal displacement of the rear sliding frame 24. When the rear sliding frame 24 slides on the support plate 23, the front sliding frame 241 is limited to the inner wall of the sliding groove 231 to ensure that the rear sliding frame 24 is limited when sliding.

[0022] Limit blocks 26 are fixedly connected to one end of both the rear sliding frame 24 and the front sliding frame 241. Limit grooves 261 are provided on the rear sliding frame 24, the front sliding frame 241 and the limit block 26. A slider 251 that matches the limit groove 261 is fixedly connected to the outer wall of the sealing plate 25. A filter screen 27 is installed on the inner walls of the front ventilation frame 2 and the rear ventilation frame 21. The limit blocks 26 fixedly connected to one end of the rear sliding frame 24 and the front sliding frame 241 are used to limit the sliding of the sealing plate 25, and support and limit the slider 251 fixedly connected to the outer wall of the sealing plate 25 through the provided limit grooves 261, so that the sealing plate 25 can slide horizontally and separate from the inner wall of the rear sliding frame 24 or the front sliding frame 241. After the sealing plate 25 is displaced from it, the front ventilation frame 2 can communicate the external space with the cavity inside the greenhouse. The filter screen 27 is used to filter the gas when it passes through the front ventilation frame 2, to avoid impurities, flying insects, etc. from entering the greenhouse, and to ensure the protection of the crops in the greenhouse.

[0023] A limit rod 32 is fixedly connected to one side of one of the mounting plates 11. The limit rod 32 is slidably connected to another connecting block 242. The limit rod 32 fixedly connected to one side of the mounting plate 11 is used to limit another connecting block 242 fixedly connected to the outer wall of the front sliding frame 241, so as to ensure that when the front sliding frame 241 is rotated and adjusted in position by the threaded rod 31, it is limited by the limit rod 32, and ensure its horizontal displacement and dislocation from the front ventilation frame 2.

[0024] The working principle and usage process of the present utility model are as follows: The front sliding frame 241 and the rear sliding frame 24 are respectively slidably connected to one side of the front ventilation frame 2 and the rear ventilation frame 21. Then, the rear sliding frame 24 and the front sliding frame 241 are connected by the cross bar 33. The cross bar 33 is slidably mounted on the mounting plate 11 at one end, and the mounting plate 11 at the other end supports and mounts the motor 3, enabling the motor 3 to drive the threaded rod 31. The threaded rod 31 can drive the connection block 242 fixedly connected to the front sliding frame 241 to be threadedly connected, so that the position of the front sliding frame 241 on one side of the front ventilation frame 2 can be adjusted by the motor 3 and the threaded rod 31. Thus, under the connection of the cross bar 33, the rear sliding frame 24 and the front sliding frame 241 are adjusted synchronously, and their displacements are moved to positions misaligned with the front ventilation frame 2 and the rear ventilation frame 21, so that the front ventilation frame 2 and the rear ventilation frame 21 can be opened simultaneously for ventilation work, and can also be closed simultaneously to seal the inner cavity space of the greenhouse. When a small amount of ventilation is required, at this time, the sealing plate 25 slidably connected to the inner wall of a single rear sliding frame 24 or front sliding frame 241 can be slid outwards, so that the corresponding front ventilation frame 2 or rear ventilation frame 21 can perform ventilation work independently. Thus, the device can ventilate quickly, and at the same time, the ventilation position can be closed for protection, and small amount of ventilation work can be carried out, which is beneficial for the staff to ventilate the inner cavity of the greenhouse.

Claims

1. A vegetable greenhouse ventilation device, comprising two fixing plates (1), a front ventilation frame (2) and a plurality of rear ventilation frames (21), characterized in that: A mounting plate (11) is mounted on the fixed plate (1), one side of the mounting plates (11) is fixedly connected to a motor (3), a driving end of the motor (3) is fixedly connected to a threaded rod (31), the outer walls of the front ventilation frame (2) and the rear ventilation frame (21) are fixedly connected to a support frame (22) for connecting and supporting with the greenhouse wall, one end of the front ventilation frame (2) and the rear ventilation frame (21) are slidably connected to a front slide (241) and a rear slide (24) respectively, two connecting blocks (242) are fixedly connected to the front slide (241), the threaded rod (31) is threadedly connected to one of the connecting blocks (242), the front slide (241) and the rear slide (24) are connected via a cross bar (33), a plurality of the rear slides (24) are connected via the cross bar (33), and the inner walls of the rear slide (24) and the front slide (241) are slidably connected to a sealing plate (25).

2. A vegetable greenhouse ventilation device according to claim 1, characterized in that: The fixing plate (1) and the mounting plate (11) are both provided with corresponding connection holes (12), and the connection holes (12) are connected by a connection rod (13), wherein one of the cross rods (33) passes through the other mounting plate (11).

3. A vegetable greenhouse ventilation device according to claim 1, characterized in that: A plurality of support frames (22) are fixedly connected at their bottom ends with support plates (23) for supporting the rear slide (24), a slide groove (231) is provided at the top of the support plate (23), and a front slide (241) matching the slide groove (231) is fixedly connected at the bottom end of the rear slide (24).

4. A vegetable greenhouse ventilation device according to claim 1, characterized in that: One end of the rear slide (24) and the front slide (241) are fixedly connected to a limiting block (26); a limiting groove (261) is provided on the rear slide (24), the front slide (241) and the limiting block (26); a sliding block (251) matching the limiting groove (261) is fixedly connected to the outer wall of the sealing plate (25); and a filter screen (27) is installed on the inner wall of the front ventilation frame (2) and the rear ventilation frame (21).

5. A vegetable greenhouse ventilation device according to claim 1, characterized in that: A limiting rod (32) is fixedly connected to one side of one of the mounting plates (11), and the limiting rod (32) is slidably connected to the other connecting block (242).

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