Greenhouse roof ventilation device

Abstract

The utility model relates to the technical field of greenhouses, and provides a greenhouse roof ventilation device which comprises a support, a cross beam installed on the top of the support, at least one supporting beam installed on the support and close to the cross beam, a lower layer film arranged between the supporting beam and the bottom of the support, and ventilation holes formed between the supporting beam and the cross beam. A ventilation frame is movably installed at the ventilation hole and provided with an upper layer film, one end of the ventilation frame is installed on the cross beam in a hinged mode, the other end of the ventilation frame is in lap joint with the supporting beam, the bottom of the ventilation frame is connected with a ventilation driving mechanism driving the ventilation frame to be opened and closed, and the ventilation driving mechanism is installed on the support. The ventilation frame is hinged to the cross beam and is driven by the ventilation driving mechanism to be opened and closed, ventilation is convenient, and the ventilation effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of greenhouses, in particular to a greenhouse roof ventilation device. Background Art

[0002] A greenhouse, also known as a hothouse, refers to a room with facilities such as cold protection, heating and light transmission, which is used to cultivate thermophilic plants in winter. It can provide a growth period and increase yield in seasons that are not suitable for plant growth. It is mostly used for the cultivation or seedling cultivation of thermophilic vegetables, flowers, trees and other plants in low temperature seasons. It is a building that can control or partially control the growth environment of plants. It is mainly used for non-seasonal or non-regional plant cultivation, scientific research, generation breeding and ornamental plant cultivation.

[0003] Ventilation is very important during the use of the greenhouse, especially in summer. Good ventilation can reduce the temperature and humidity in the greenhouse, promote the growth of crops, reduce the occurrence of crop disease or death, and at the same time, avoid stuffiness in the greenhouse, which is not conducive to the work of the staff.

[0004] Greenhouse ventilation devices are mostly installed on one side of the greenhouse or on the roof. There are many greenhouse ventilation devices at present. For example, patent number CN201420394028.3, the patent name is a Chinese utility model patent for a greenhouse ventilation device. The scaffolding is surrounded by an impermeable layer on the outside, and the roof above the scaffolding has an opening. The scaffolding inside the two sides of the opening is respectively connected with a horizontal fixing rod; the movable cover is provided with four sleeves, which are vertical and respectively fixed on the two fixing rods, and each sleeve is respectively provided with a sliding rod The bottom end of the slide bar is provided with a gripping portion located horizontally in the shed, the top end of the slide bar is provided with a bracket that fits closely to the opening of the shed, the inner side of the bracket is provided with a reinforcing rod, and a waterproof film is covered on the bracket. The movable cover is controlled to move open or descend and close by the gripping portion, the slide bar and the sleeve to realize the ventilation function. Since the ventilated movable cover is located at the top of the greenhouse shed, manual operation is troublesome. At the same time, the ventilation method of moving the movable cover upward as a whole to open it has an unsatisfactory ventilation effect, and there is a gap between the movable cover and the opening of the shed, and the sealing is poor. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a greenhouse roof ventilation device, which is convenient for ventilation and has a good ventilation effect by hingedly connecting the ventilation frame to the crossbeam and driving the opening and closing through a ventilation drive mechanism.

[0006] In order to solve the above technical problems, the technical solution of the utility model is:

[0007] A greenhouse roof ventilation device comprises a bracket, a cross beam is installed on the top of the bracket, at least one supporting beam is installed on the bracket and close to the cross beam, a lower film is provided between the supporting beam and the bottom of the bracket, a ventilation hole is provided between the supporting beam and the cross beam, a ventilation frame is movably installed at the ventilation hole, an upper film is provided on the ventilation frame, one end of the ventilation frame is hingedly installed on the cross beam, and the other end is overlapped on the supporting beam, the bottom of the ventilation frame is connected to a ventilation drive mechanism for driving the ventilation frame to open and close, and the ventilation drive mechanism is installed on the bracket.

[0008] As an improved technical solution, the ventilation rack includes a plurality of support rods, one ends of the plurality of support rods are respectively hingedly mounted on a first connecting member, the first connecting members are all mounted on the cross beam, the other ends of the plurality of support rods are overlapped on the support beam, and adjacent support rods are connected by connecting rods, and the upper film is arranged between the connecting rods and the cross beam.

[0009] As an improved technical solution, the first connecting member comprises main body parts arranged opposite to each other, a first connecting part is arranged between the two main body parts, and a first connecting hole for connecting with the crossbeam is arranged on the first connecting part;

[0010] A second connecting part is respectively provided at one end of the two main bodies close to the support rod. The two second connecting parts are arranged opposite to each other and are arranged at an angle with the main body. The second connecting part is provided with a second connecting hole for hinged connection with the support rod.

[0011] As an improved technical solution, the first connecting portion is provided in a groove-shaped structure, and both ends of the groove-shaped structure are respectively connected to the main body, and the first connecting hole is provided at the bottom end of the groove-shaped structure of the first connecting portion;

[0012] The opposite sides of the two main body parts are respectively connected with folding plates, and one end of the folding plate away from the main body part is flush with the bottom end of the groove structure of the first connecting part.

[0013] As an improved technical solution, the main body, the first connecting portion and the second connecting portion are formed into an integral bent structure.

[0014] As an improved technical solution, the ventilation drive mechanism includes a rack, one end of the rack is hingedly mounted on a fixed component, the fixed component is mounted on the support rod, the other end of the rack passes through a drive frame, the drive frame is mounted on a drive shaft, a drive gear is rotatably mounted in the drive frame, the drive gear is fixedly mounted on the drive shaft and meshes with the rack for transmission, the drive shaft is rotatably mounted on a support plate, the support plate is mounted on the bracket, a reduction motor is also connected to the drive shaft, and the reduction motor is mounted on the bracket through a connecting frame.

[0015] As an improved technical solution, a roller is rotatably mounted in the driving frame via a support shaft, and the roller abuts against a side of the rack away from the saw teeth.

[0016] As an improved technical solution, the fixing assembly includes a second connecting member and a third connecting member connected to the second connecting member, the second connecting member is provided with a connecting ear hingedly connected to the rack, and the connecting ear is provided with a third connecting hole;

[0017] The third connecting member is in a U-shaped structure and is buckled on the supporting rod. The second connecting member and the third connecting member together form a fixed space.

[0018] After adopting the above technical solution, the beneficial effects of the utility model are:

[0019] By setting a bracket, a crossbeam is installed on the top of the bracket, at least one supporting beam is installed on the bracket and near the crossbeam, a lower film is arranged between the supporting beam and the bottom of the bracket, a ventilation hole is arranged between the supporting beam and the crossbeam, a ventilation frame is movably installed at the ventilation hole, an upper film is arranged on the ventilation frame, one end of the ventilation frame is hingedly installed on the crossbeam, and the other end is overlapped on the supporting beam, and a ventilation driving mechanism for driving the ventilation frame to open and close is connected to the bottom of the ventilation frame, and the ventilation frame is overlapped on the supporting beam, so that the edge part of the upper film can be overlapped on the lower film, so that the ventilation hole can be completely closed, thereby ensuring the sealing of the greenhouse, and the ventilation frame can be driven to rotate upward around the crossbeam by the ventilation driving mechanism, and the ventilation hole can be automatically opened, thereby ensuring the normal ventilation function of the greenhouse, and at the same time, because the ventilation frame is opened at an angle, it helps to increase the fluidity of the air and enhance the ventilation effect;

[0020] The ventilation rack includes a plurality of support rods, one end of each of the support rods is hingedly mounted on a first connecting member, and the first connecting members are all mounted on a crossbeam. The first connecting member is provided to facilitate the hinged connection between the support rod and the crossbeam, and the connection is convenient and fast, and the on-site assembly efficiency is high;

[0021] The ventilation drive mechanism includes a rack, one end of which is hingedly connected to the support rod through a fixed component, and the other end passes through a driving frame, which is installed on a driving shaft. A driving gear is rotatably installed in the driving frame, and the driving gear is fixedly installed on the driving shaft and meshes with the rack for transmission. A reduction motor is also connected to the driving shaft, and the reduction motor can drive the driving shaft to rotate. During the rotation of the driving shaft, the driving gear is driven to rotate synchronously. Since the driving gear is meshed with the rack for transmission, the rack is driven to move, and the support rod is pushed upward or downward to close the ventilation hole through the rack, thereby realizing the functions of ventilation and sealing.

[0022] In summary, the utility model provides a greenhouse roof ventilation device, which is convenient for ventilation and has a good ventilation effect by hingedly connecting the ventilation frame to the crossbeam and driving the ventilation drive mechanism to open and close the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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 prior art descriptions are 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 the structures shown in these drawings without creative work. In addition, in the drawings, the components or parts are not necessarily drawn according to the actual scale.

[0024] Figure 1 This is a schematic diagram of the structure of the greenhouse roof ventilation device of the utility model;

[0025] Figure 2 This is a structural schematic diagram of the greenhouse roof ventilation device of the utility model from another angle;

[0026] Figure 3 It is a structural schematic diagram of the ventilation frame and ventilation drive mechanism of the utility model;

[0027] Figure 4 This is a schematic diagram of the connection structure between the first connecting member, the crossbeam and the support rod in the utility model;

[0028] Figure 5 It is a structural schematic diagram of the first connecting member in the utility model;

[0029] Figure 6 It is a schematic diagram of the structure of the driving frame and the rack in the utility model;

[0030] Figure 7 It is a structural schematic diagram of the fixing assembly and the rack in the utility model;

[0031] Reference numerals:

[0032] 1. Bracket, 2. Crossbeam, 3. Support beam, 4. Ventilation rack, 401. Support rod, 402. First connecting piece, 4021. Main body, 4022. First connecting part, 4023. First connecting hole, 4024. Second connecting part, 4025. Second connecting hole, 4026. Folding plate, 403. Connecting rod, 5. Ventilation drive mechanism, 501. Rack, 502. Fixing assembly, 5021. Second connecting piece, 5022. Connecting ear, 5023. Third connecting piece, 503. Drive rack, 504. Drive shaft, 505. Drive gear, 506. Support plate, 507. Reduction motor, 508. Connecting rack, 6. Roller. DETAILED DESCRIPTION

[0033] 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 of 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.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0036] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0037] like Figure 1-Figure 3As shown, a greenhouse roof ventilation device includes a bracket 1, a crossbeam 2 is installed on the top of the bracket 1, at least one supporting beam 3 is installed on the bracket 1 and near the crossbeam 2, a lower film is arranged between the supporting beam 3 and the bottom of the bracket 1, and a ventilation hole is arranged between the supporting beam 3 and the crossbeam 2, a ventilation frame 4 is movably installed at the ventilation hole, an upper film is arranged on the ventilation frame 4, one end of the ventilation frame 4 is hingedly installed on the crossbeam 2, and the other end is overlapped on the supporting beam 3, and a ventilation driving mechanism 5 for driving the ventilation frame 4 to open and close is connected to the bottom of the ventilation frame 4, and the ventilation driving mechanism 5 is installed on the bracket 1, and the ventilation frame 4 is overlapped on the supporting beam 3, so that the edge part of the upper film can be overlapped on the lower film, so that the ventilation hole can be completely closed, thereby ensuring the sealing of the greenhouse, and the ventilation frame 4 can be driven to rotate upward around the crossbeam 2 by the ventilation driving mechanism 5, and the ventilation hole can be automatically opened, thereby ensuring the normal ventilation function of the greenhouse, and at the same time, because the ventilation frame 4 is opened at an angle, it helps to increase the fluidity of the air and enhance the ventilation effect.

[0038] like Figure 1-Figure 3 As shown, the ventilation rack 4 includes a plurality of support rods 401, one ends of the plurality of support rods 401 are hingedly mounted on the first connecting member 402 through a connecting shaft, the first connecting member 402 is installed on the beam 2 through bolts, the other ends of the plurality of support rods 401 are overlapped on the support beam 3, and adjacent support rods 401 are connected by a connecting rod 403, an upper film is arranged between the connecting rod 403 and the beam 2, and the first connecting member 402 is arranged to facilitate the hinged connection between the support rod 401 and the beam 2, and the connection is convenient and fast, and the on-site assembly efficiency is high. At the same time, since one end of the support rod 401 is hinged to the beam 2 and the other end is overlapped on the support beam 3, the support rod 401 can be rotated when subjected to external force, thereby realizing the opening of the ventilation rack 4.

[0039] like Figure 3-Figure 5 As shown, the first connecting member 402 includes body parts 4021 arranged opposite to each other, a first connecting part 4022 is provided between the two body parts 4021, and a first connecting hole 4023 for connecting with the crossbeam 2 is provided on the first connecting part 4022, and the first connecting member 402 is conveniently connected and fixed to the crossbeam 2 by bolts and nuts through the first connecting hole 4023;

[0040] A second connecting portion 4024 is respectively provided at one end of the two main bodies 4021 close to the support rod 401, and the two second connecting portions 4024 are arranged opposite to each other and are both arranged at an angle to the main body 4021. In this embodiment, the second connecting portion 4024 is arranged at 90° to the main body 4021, and a second connecting hole 4025 for hinged connection with the support rod 401 is provided on the second connecting portion 4024, so that the first connecting member 402 is conveniently connected and fixed to the support rod 401 through the second connecting hole 4025.

[0041] like Figure 5 As shown, the first connection part 4022 is provided in a slot-shaped structure, and both ends of the slot-shaped structure are respectively connected to the main body 4021, and the first connection hole 4023 is provided at the bottom end of the slot-shaped structure of the first connection part 4022;

[0042] The relatively divergent sides of the two main body parts 4021 are respectively connected with folding plates 4026, and the end of the folding plate 4026 away from the main body part 4021 is flush with the bottom end of the groove structure of the first connecting part 4022. By designing the first connecting part 4022 as a groove structure and arranging the folding plates 4026 on the relatively divergent sides of the main body part 4021, the structural strength and structural stability of the first connecting member 402 are enhanced.

[0043] like Figure 5 As shown, the main body 4021, the first connection part 4022 and the second connection part 4024 are formed into an integral bending structure. The first connecting member 402 is formed by integrally bending the main body 4021, the first connection part 4022 and the second connection part 4024, which is easy to process, simple in manufacturing process, and saves steps.

[0044] like Figure 1-Figure 3 and Figure 6-Figure 7 As shown, the ventilation drive mechanism 5 includes a rack 501, one end of the rack 501 is hingedly mounted on a fixing assembly 502, the fixing assembly 502 is fixedly mounted on a support rod 401, the other end of the rack 501 passes through a driving frame 503, the driving frame 503 is mounted on a driving shaft 504, a driving gear 505 is rotatably mounted in the driving frame 503, the driving gear 505 is fixedly mounted on the driving shaft 504 by bolts, and meshes with the rack 501 for transmission, the driving shaft 504 is rotatably mounted on a support plate 506, and the support plate 506 is rotatably mounted on the support plate 506. 06 is installed on the bracket 1 by bolts, and a reduction motor 507 is also connected to the driving shaft 504. The reduction motor 507 is installed on the bracket 1 through the connecting frame 508. The reduction motor 507 can drive the driving shaft 504 to rotate. During the rotation of the driving shaft 504, the driving gear 505 is driven to rotate synchronously. Since the driving gear 505 is meshed with the rack 501 for transmission, the rack 501 is driven to move, and the support rod 401 is pushed by the rack 501 to open the ventilation hole upward or close the ventilation hole downward, thereby realizing the ventilation and sealing functions.

[0045] like Figure 6 As shown, a roller 6 is rotatably installed in the driving frame 503 via a support shaft. Two rollers 6 are provided. The rollers 6 abut against a side of the rack 501 away from the saw teeth. The rollers 6 are provided to enhance the smoothness of the movement of the rack 501 in the driving frame 503.

[0046] like Figure 7As shown, the fixing assembly 502 includes a second connecting member 5021 and a third connecting member 5023 connected to the second connecting member 5021, the second connecting member 5021 is provided with a connecting ear 5022 hingedly connected to the rack 501, and the connecting ear 5022 is provided with a third connecting hole, and the third connecting hole is provided to facilitate the hinged connection between the rack 501 and the second connecting member 5021;

[0047] The third connecting member 5023 is in a U-shaped structure and is buckled on the support rod 401 . The second connecting member 5021 and the third connecting member 5023 together form a fixed space, thereby firmly fixing the second connecting member 5021 on the support rod 401 .

[0048] For ease of understanding, the working process of this embodiment is given below:

[0049] like Figure 1-Figure 7 As shown, first, the cross beam 2 is fixedly installed on the top of the bracket 1, and the support beam 3 is fixedly installed on one side of the bracket 1 and close to the cross beam 2, and the lower film is covered between the support beam 3 and the bottom of the bracket 1. Then, the first connecting member 402 is fixedly installed on the cross beam 2 by bolts, and then one end of the support rod 401 is hingedly connected to the second connecting portion 4024 of the first connecting member 402, and the other end is overlapped on the support beam 3 and connected with the connecting rod 403, and the upper film is covered between the connecting rod 403 and the cross beam 2. When the support rod 401 is overlapped on the support beam 3, the edge of the upper film overlaps on the lower film;

[0050] Afterwards, the reduction motor 507 is installed on the bracket 1 through the connecting frame 508, and the driving shaft 504 is also installed on the bracket 1 through the supporting plate 506, and the driving shaft 504 is connected to the reduction motor 507 in transmission. Afterwards, the driving frame 503 is installed on the driving shaft 504, and the driving gear 505 in the driving frame 503 is fixedly connected to the driving shaft 504. Afterwards, one end of the rack 501 is hingedly connected to the support rod 401 through the fixing component 502, and the other end passes through the driving frame 503 and meshes with the driving gear 505 for transmission. The driving shaft 504 is driven to rotate by the reduction motor 507, and the driving gear 505 is driven to rotate synchronously during the rotation of the driving shaft 504. The driving gear 505 drives the rack 501 to move, and pushes the support rod 401 to open the ventilation hole upward or close the ventilation hole downward through the rack 501, thereby realizing the ventilation and sealing functions.

[0051] In summary, the utility model provides a greenhouse roof ventilation device, which is convenient for ventilation and has a good ventilation effect by hingedly connecting the ventilation frame to the crossbeam and driving the ventilation drive mechanism to open and close.

[0052] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.

Claims

1. A greenhouse roof ventilation device, characterized in that: It includes a bracket, a crossbeam is installed on the top of the bracket, at least one supporting beam is installed on the bracket and close to the crossbeam, a lower film is arranged between the supporting beam and the bottom of the bracket, a ventilation hole is arranged between the supporting beam and the crossbeam, a ventilation frame is movably installed at the ventilation hole, an upper film is arranged on the ventilation frame, one end of the ventilation frame is hingedly installed on the crossbeam, and the other end is overlapped on the supporting beam, the bottom of the ventilation frame is connected to a ventilation drive mechanism for driving the ventilation frame to open and close, and the ventilation drive mechanism is installed on the bracket.

2. The greenhouse roof ventilation device according to claim 1, characterized in that: The ventilation rack includes a plurality of support rods, one ends of which are respectively hingedly mounted on the first connecting members, which are all mounted on the crossbeam, the other ends of which are overlapped on the support beam, and adjacent support rods are connected by connecting rods, and the upper film is arranged between the connecting rods and the crossbeam.

3. The greenhouse roof ventilation device according to claim 2, characterized in that: The first connecting member comprises main body parts arranged opposite to each other, a first connecting part is arranged between the two main body parts, and a first connecting hole for connecting with the crossbeam is arranged on the first connecting part; A second connecting part is respectively provided at one end of the two main bodies close to the support rod. The two second connecting parts are arranged opposite to each other and are arranged at an angle with the main body. The second connecting part is provided with a second connecting hole for hinged connection with the support rod.

4. The greenhouse roof ventilation device according to claim 3, characterized in that: The first connection part is provided in a slot-shaped structure, and both ends of the slot-shaped structure are respectively connected to the main body, and the first connection hole is provided at the bottom end of the slot-shaped structure of the first connection part; The opposite sides of the two main body parts are respectively connected with folding plates, and one end of the folding plate away from the main body part is flush with the bottom end of the groove structure of the first connecting part.

5. The greenhouse roof ventilation device according to claim 3, characterized in that: The main body, the first connecting portion and the second connecting portion are formed into an integral bending structure.

6. The greenhouse roof ventilation device according to claim 2, characterized in that: The ventilation drive mechanism includes a rack, one end of the rack is hingedly mounted on a fixed component, the fixed component is mounted on the support rod, the other end of the rack passes through a drive frame, the drive frame is mounted on a drive shaft, a drive gear is rotatably mounted in the drive frame, the drive gear is fixedly mounted on the drive shaft and meshes with the rack for transmission, the drive shaft is rotatably mounted on a support plate, the support plate is mounted on the bracket, a reduction motor is also connected to the drive shaft, and the reduction motor is mounted on the bracket through a connecting frame.

7. The greenhouse roof ventilation device according to claim 6, characterized in that: A roller is rotatably mounted in the driving frame via a supporting shaft, and the roller abuts against a side of the rack away from the saw teeth.

8. The greenhouse roof ventilation device according to claim 6, characterized in that: The fixing assembly comprises a second connecting member and a third connecting member connected to the second connecting member, the second connecting member is provided with a connecting ear hingedly connected to the rack, and the connecting ear is provided with a third connecting hole; The third connecting member is in a U-shaped structure and is buckled on the supporting rod. The second connecting member and the third connecting member together form a fixed space.

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