Push-pull type ventilation device of sunlight greenhouse

Abstract

The utility model relates to the technical field of greenhouse ventilation, in particular to a push-pull type ventilation device of a sunlight greenhouse, which comprises a fixing plate, guide plates are connected to two ends of the lower portion of the front side of the fixing plate, telescopic rods are hinged to two ends of the middle of the front side of the fixing plate, and the output ends of the telescopic rods are detachably connected with limiting heads. The limiting head is slidably connected with the guide plate through a connecting rod, a push rod is fixedly connected to the position, between the two telescopic rods, of the fixing plate, and the output end of the push rod is detachably connected with a fixing clamp. The laminating film is fixed through the fixing clamps, the limiting heads arranged at the two ends are matched, the inclination direction of the guide plate is adjusted through the connecting piece, the movement direction of the telescopic rod is further limited, the laminating film can be pushed away to the maximum extent, an air outlet is reserved, meanwhile, protrusions arranged in the limiting grooves of the limiting heads are utilized, and the laminating film is prevented from being separated from the device when the laminating film is taken back. And the reliability of the device is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of greenhouse ventilation, and specifically to a push-pull type air vent for a solar greenhouse. Background Art

[0002] Greenhouse ventilation refers to promoting the convection of air currents inside and outside the greenhouse to effectively control the temperature and humidity inside the greenhouse, creating suitable environmental conditions for crop growth, which is an indispensable part of the greenhouse planting process. Currently, greenhouse air venting is mainly manual operation and intelligent greenhouse air vents. Manual operation is not conducive to improving production efficiency, while intelligent greenhouse air vents have high upfront investment costs, require certain technical support and maintenance experience, and are not conducive to ordinary farmers' use. Therefore, there is a need to develop a push-pull type air vent device for solar greenhouses with a simple structure, low cost, and easy operation. Content of the Utility Model

[0003] In view of the above technical problems, the utility model provides a push-pull type air vent device for a solar greenhouse with a simple structure, low cost, and easy operation, so as to solve the problems of low efficiency of manual operation for existing greenhouse air venting and high cost and complex operation of intelligent greenhouse air vents.

[0004] To solve the above technical problems, a push-pull type air vent for a solar greenhouse of the utility model includes a fixed plate. At both ends of the lower part of the front side of the fixed plate, there are connected guiding plates. At both ends of the middle part of the front side of the fixed plate, there are hinged telescopic rods. The output end of the telescopic rod is detachably connected with a limiting head. The limiting head is slidably connected with the guiding plate through a connecting rod. On the fixed plate, between the two telescopic rods, there is fixedly connected a push rod. The output end of the push rod is detachably connected with a fixed clamp.

[0005] Further, a limiting groove is opened at the front end of the limiting head, and staggered arc-shaped protrusions are connected to the upper and lower sides inside the limiting groove.

[0006] Further, the connecting rod is fixedly connected to the bottom of the limiting head, and a slider is fixedly connected to the bottom of the connecting rod. A groove matching the slider is opened on the guiding plate, and the slider is slidably connected with the groove.

[0007] Further, at both ends of the bottom of the fixed plate, there are fixedly connected connecting pieces. The main body of the connecting piece is "U"-shaped, and the connecting piece and one end of the guiding plate are connected by bolts.

[0008] The utility model has the following advantages compared with the prior art:

[0009] The utility model fixes the film covering through a fixing clip, and with the limiting heads arranged at both ends, by using a push rod and a telescopic rod, the film covering can be pushed open to leave an air outlet. The air venting structure is simple and easy to operate. By using a connecting piece fixedly connected to a fixing plate, cooperating with a guiding plate and a bolt, the flexible adjustment of the inclination direction of the guiding plate can be achieved. Through the bolt on the connecting piece, the direction of the adjusted guiding plate can be fixed. By using a telescopic rod hinged to the fixing plate, cooperating with the limiting head at the front end of the telescopic rod connected to the guiding plate through a connecting rod, it ensures that the movement direction of the telescopic rod is consistent with the guiding plate, and the flexible adjustment of the size of the air outlet can be achieved; by using the protrusions arranged in the limiting groove of the limiting head, it avoids the film covering detaching from the device when the film covering is retracted, ensuring the reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a top view of the utility model.

[0011] Figure 2 It is a side view of the utility model.

[0012] In the figure: 1, fixing plate; 2, guiding plate; 3, telescopic rod; 4, limiting head; 5, connecting rod; 6, push rod; 7, fixing clip; 8, connecting piece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The following further describes the utility model in conjunction with the drawings.

[0014] As Figure 1 , Figure 2 shown, a push - type air vent for a solar greenhouse includes a fixing plate 1. At both ends of the lower part of the front side of the fixing plate 1, guiding plates 2 are connected. At both ends of the middle part of the front side of the fixing plate 1, telescopic rods 3 are hinged. The output end of the telescopic rod 3 is detachably connected with a limiting head 4. The limiting head 4 is slidably connected with the guiding plate 2 through a connecting rod 5. On the fixing plate 1, a push rod 6 is fixedly connected between the two telescopic rods 3. The output end of the push rod 6 is detachably connected with a fixing clip 7 through a connecting piece.

[0015] In order to ensure a certain fixing effect on the film covering and prevent the film covering from slipping out, a limiting groove is opened at the front end of the limiting head 4, and staggered arc - shaped protrusions are connected to the upper and lower sides in the limiting groove.

[0016] In order to ensure that the two telescopic rods 3 slide in the expected direction, a connecting rod 5 is fixedly connected to the bottom of the limiting head 4, a slider is fixedly connected to the bottom of the connecting rod 5, and a groove matching the slider is opened on the guiding plate 2, and the slider is slidably connected with the groove.

[0017] In order to ensure the largest possible air venting range, connecting pieces 8 are fixedly connected to both ends of the bottom of the fixing plate 1. The main body of the connecting piece 8 is in a "C" shape, and one end of the connecting piece 8 is connected to the guiding plate 2 through a bolt.

[0018] The working process of this embodiment is as follows:

[0019] Fix the fixing plate 1 to the greenhouse frame, remove the bolts on the connector 8, adjust the direction of the guide plate 2 fixedly connected to the end of the connector 8 according to the size of the opening, and fix the bolts back to the connector 8 after determining the tilt direction. With the push rod 6 and telescopic rod 3 fully retracted, fix the film in the middle position of the vent through the fixing clamp 7. Place the film at the corresponding position of the two telescopic rods 3 into the groove set on the limiting head 4. When ventilation is required, simultaneously start the push rod 6 and telescopic rod 3. The telescopic rod 3 slides to both sides in the direction of the guide plate 2, which can push the film open to the maximum extent for ventilation. After ventilation is completed, retract the push rod 6 and telescopic rod 3, and the film returns to its original position. Due to the interlaced arc protrusions in the limiting groove of the limiting head 4, the film will still not fall off the limiting head 4 at this time.

Claims

1. A push-pull ventilator for a solarium, characterized in that: The utility model relates to a kind of fixed plate (1), the fixed plate (1) front side lower two ends are connected with guide plate (2), the fixed plate (1) front side middle part two ends are hinged with telescopic rod (3), the telescopic rod (3) output end is detachably connected with limit head (4), the limit head (4) is slidably connected with the guide plate (2) by connecting rod (5), the fixed plate (1) is fixedly connected with push rod (6) on two telescopic rod (3) middle part, the push rod (6) output end is detachably connected with fixed clamp (7).

2. Push-pull ventilator for a daylight greenhouse according to claim 1, characterized in that The limit head (4) is provided with a limiting groove in the front end, and the limiting groove is connected with the arc-shaped protrusions arranged alternately on the upper and lower sides.

3. Push-pull ventilator for a daylight greenhouse according to claim 1, characterized in that: The limit head (4) is fixedly connected with the connecting rod (5) at the bottom, the connecting rod (5) is fixedly connected with a sliding block at the bottom, the guide plate (2) is provided with a groove matched with the sliding block, and the sliding block is slidably connected with the groove.

4. Push-pull ventilator for a daylight greenhouse according to claim 1, characterized in that: The fixed plate (1) is fixedly connected with a connecting piece (8) at the bottom, the connecting piece (8) is in the shape of " ", and the connecting piece (8) is connected with one end of the guide plate (2) by bolts.

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