A heat cycle ventilation device for greenhouse seedling raising

Abstract

This utility model discloses a heat circulation ventilation device for greenhouse seedling cultivation, belonging to the field of seedling planting technology. The device further includes a one-way air inlet valve embedded at the left end of the circulation box, away from the corrugated pipe. Four perforated plates are snapped onto the inner side of the circulation box corresponding to the one-way air inlet valve. A dust collection bag is slidably connected to the circulation box below the four perforated plates to collect dust sliding off the perforated plates. An air extraction pump is installed on the right side of the circulation box near the baffle, and a partition is provided between the air extraction pump and the heating block. A ventilation groove is opened at the upper end of the partition. The input end of the air extraction pump passes through the ventilation groove, and the output end of the air extraction pump passes through the circulation box and connects to the corrugated pipe. By setting up the perforated plates, the air is purified by using the perforated plates in conjunction with the dust collection bag to remove dust from the air, improving the heat circulation efficiency while preventing dust from being generated during heat circulation.

Description

Technical Field

[0001] This utility model belongs to the field of seedling cultivation technology, and more specifically, relates to a heat circulation ventilation device for greenhouse seedling cultivation. Background Technology

[0002] A seedling greenhouse, also known as a hothouse, is a room equipped with facilities for frost protection, heating, and light transmission. It is used to cultivate warm-loving plants during winter. In seasons when plants are not suitable for growth, it can provide a growing period and increase yield. It is often used for the cultivation or seedling raising of warm-loving vegetables, flowers, trees, and other plants during cold seasons.

[0003] Common heat circulation ventilation devices used in seedling greenhouses only include the function of heat circulation ventilation, which can circulate heat and ventilate the greenhouse. However, they lack the function of adjusting the air inlet angle, which cannot guarantee that the air inlet angle can be changed according to the cultivation needs of different plants. This can easily lead to hot air blowing directly at the same angle onto seedlings with different cultivation needs, causing some seedlings to wither and affecting the seedling yield.

[0004] A heat circulation ventilation device for a seedling greenhouse, as described in patent publication number CN222340141U, includes a supporting base plate. Four rectangular universal pulleys are bolted to the four corners of the base plate. A first side plate and a second side plate are symmetrically arranged on the top two sides of the base plate. A connecting plate is located on the side of the first side plate, and an adjusting ring is located beside the connecting plate. A gooseneck tube is located beside the adjusting ring. An air inlet box is located beside the first side plate, and an air outlet box is located beside the second side plate. The air inlet box and the air outlet box are welded together. This invention uses a motor to drive a rotating shaft, which in turn drives the adjusting ring to rotate, thereby changing the angle of the hot air blown into the greenhouse, ensuring that the air inlet angle can be adjusted according to the cultivation needs of different plants.

[0005] However, the aforementioned heat circulation ventilation device for seedling greenhouses may generate dust during operation. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a heat circulation ventilation device for greenhouse seedling cultivation, which avoids dust generation during heat circulation.

[0007] This utility model discloses a heat circulation ventilation device for greenhouse seedling cultivation, comprising a circulation box; a baffle plate fixedly connected to the inner side of the circulation box; a ventilation slot formed between the baffle plate and the circulation box; a corrugated pipe fixedly connected to the rear right side of the circulation box; a heating block fixedly connected to the right side portion of the circulation box; a one-way air inlet valve embedded at the left end of the circulation box away from the corrugated pipe; four perforated plates snapped onto the inner side of the circulation box corresponding to the one-way air inlet valve; a dust collection bag slidably connected to the circulation box below the four perforated plates to collect dust sliding off the perforated plates; an air extraction pump installed on the right side of the circulation box near the baffle plate; a partition plate between the air extraction pump and the heating block; a ventilation slot formed at the upper end of the partition plate; the input end of the air extraction pump passing through the ventilation slot; and the output end of the air extraction pump passing through the circulation box and connected to the corrugated pipe.

[0008] Preferably, a pressure reducing valve is embedded in the circulation box corresponding to the heating block; the pressure reducing valve and the one-way air intake valve are on the same end face of the circulation box.

[0009] Preferably, the circulation box is located outside the bellows and is fixedly connected to four electric cylinders; the output end of each electric cylinder is fixedly connected to the end of the bellows away from the circulation box.

[0010] Preferably, the dust collection bag is made of sheepskin.

[0011] Preferably, the lower end of each of the perforated plates is snapped onto a crossbeam; there are slots between the crossbeam and the lower end of the circulation box to collect dust that slides off the perforated plates.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] (1) By setting up a perforated plate, the perforated plate, together with the dust collection bag, can purify the dust in the air, which improves the efficiency of heat circulation and prevents dust from being generated during heat circulation.

[0014] (2) By setting up electric cylinders and bellows, the orientation of the bellows can be adjusted by utilizing the length of the output end of the four electric cylinders, thereby improving the efficiency of the heat cycle.

[0015] (3) By setting a one-way air intake valve, air can only enter the inside of the circulation box in one direction and be discharged through the bellows, which improves safety. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 4 This is an enlarged schematic diagram of the structure at point A of this utility model.

[0020] The following are the labels in the diagram: 10. Circulation box; 11. Dust collection bag; 12. Corrugated pipe; 13. One-way air inlet valve; 14. Pressure reducing valve; 15. Electric cylinder; 16. Mesh plate; 17. Crossbeam; 18. Ventilation slot; 19. Air pump; 20. Heating block; 21. Partition plate; 22. Air exchange slot; 23. Baffle plate. Detailed Implementation

[0021] Specific Implementation Example 1: Please refer to Figure 1-4 A heat circulation ventilation device for greenhouse seedling cultivation includes a circulation box 10; a baffle 23 is fixedly connected to the inner side of the circulation box 10; a ventilation slot 18 is formed between the baffle 23 and the circulation box 10; a corrugated pipe 12 is fixedly connected to the rear right side of the circulation box 10; a heating block 20 is fixedly connected to the right side portion of the circulation box 10; a one-way air inlet valve 13 is embedded at the left end of the circulation box 10 away from the corrugated pipe 12; four perforated plates 16 are snapped onto the inner side of the circulation box 10 corresponding to the one-way air inlet valve 13; the circulation box 10 is slidably connected to the four perforated plates 16 below the four perforated plates 16. A dust collection bag 11 is used to collect dust that slides off the perforated plate 16. An air pump 19 is installed in the circulation box 10 to the right of the baffle 23. A partition 21 is installed between the air pump 19 and the heating block 20. An air exchange groove 22 is opened at the upper end of the partition 21. The input end of the air pump 19 passes through the air exchange groove 22. The output end of the air pump 19 passes through the circulation box 10 and is connected to the corrugated pipe 12. By setting the perforated plate 16, the perforated plate 16 and the dust collection bag 11 are used to purify the dust in the air, which improves the heat circulation efficiency and prevents dust from being generated during heat circulation.

[0022] Please see Figure 3 A pressure reducing valve 14 is embedded in the circulation box 10 corresponding to the heating block 20; the pressure reducing valve 14 and the one-way air intake valve 13 are on the same end face of the circulation box 10.

[0023] Please see Figure 2 The circulation box 10 is located outside the bellows 12 and is fixedly connected to four electric cylinders 15; the output end of each electric cylinder 15 is fixedly connected to the end of the bellows 12 away from the circulation box 10; by setting electric cylinders 15 and bellows 12, the orientation of the bellows 12 can be adjusted by using the length of the extension of the output ends of the four electric cylinders 15, thereby improving the efficiency of heat circulation.

[0024] Please see Figure 1-2 The dust collection bag 11 is made of sheepskin.

[0025] Please see Figure 2Each of the perforated plates 16 has its lower end snapped into a crossbeam 17; there are slots between the crossbeam 17 and the lower end of the circulation box 10 to collect dust that slides off the perforated plates 16; by setting a one-way air inlet valve 13, air can only enter the inside of the circulation box 10 in one direction and be discharged through the bellows 12, which improves safety.

[0026] During operation, the air pump 19 is started, generating suction to draw air from inside the circulation box 10. The heating block 20 is then activated to heat the air inside the circulation box 10. As the air inside the circulation box 10 is drawn out by the air pump 19, the air pressure inside the circulation box 10 is lower than the outside air pressure. The one-way air inlet valve 13 is opened, allowing outside air to enter the circulation box 10 through the one-way air inlet valve 13. The air first passes through four perforated plates 16, where dust is blocked and falls into the dust collection bag 11. After passing through the last perforated plate 16, the purified air passes through the ventilation slot 18 and the air exchange slot 22, and is then heated by the heating block 20. The heated air is then drawn into the air pump 19 and discharged through the output end of the air pump 19.

[0027] When blowing hot air onto the seedlings, the electric cylinder 15 is activated. The extension of the output end of the electric cylinder 15 drives the angle of the bellows 12 opening to change, thereby changing the direction of the air blowing from the bellows 12.

[0028] When the air pressure on the upper side of the heating block 20 is too high, the excess air is discharged through the pressure reducing valve 14, which improves safety.

[0029] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0030] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0031] The foregoing description presents and describes several preferred embodiments of this application. However, as mentioned above, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A heat circulation ventilation device for greenhouse seedling cultivation, comprising a circulation box (10); a baffle (23) is fixedly connected to the inner side of the circulation box (10); a ventilation slot (18) is formed between the baffle (23) and the circulation box (10); a corrugated pipe (12) is fixedly connected to the rear right side of the circulation box (10); a heating block (20) is fixedly connected to the right side portion of the circulation box (10); characterized in that, It also includes a one-way air inlet valve (13) embedded at the left end of the circulation box (10) away from the corrugated pipe (12); four mesh plates (16) are snapped into the inner side of the circulation box (10) corresponding to the one-way air inlet valve (13); the circulation box (10) is slidably connected to the dust collection bag (11) under the four mesh plates (16) to receive the dust that slides off the mesh plates (16); the circulation box (10) is provided with a suction pump (19) on the right side of the baffle (23), and a partition (21) is provided between the suction pump (19) and the heating block (20); an air exchange groove (22) is opened at the upper end of the partition (21); the input end of the suction pump (19) passes through the air exchange groove (22); the output end of the suction pump (19) passes through the circulation box (10) and is connected to the corrugated pipe (12).

2. The heat cycle ventilation device for greenhouse seedling raising according to claim 1, characterized in that: A pressure reducing valve (14) is embedded in the circulation box (10) at the position corresponding to the heating block (20); the pressure reducing valve (14) and the one-way air intake valve (13) are on the same end face of the circulation box (10).

3. The heat cycle ventilation device for greenhouse seedlings according to claim 1, characterized in that: The circulation box (10) is located outside the bellows (12) and is fixedly connected to four electric cylinders (15); the output end of each electric cylinder (15) is fixedly connected to the end of the bellows (12) away from the circulation box (10).

4. The heat cycle ventilation device for greenhouse seedlings according to claim 1, characterized in that: The dust collection bag (11) is made of sheepskin.

5. The heat cycle ventilation device for greenhouse seedlings according to claim 1, characterized in that: The lower end of each of the perforated plates (16) is snapped onto a crossbeam (17); there are slots between the crossbeam (17) and the lower end of the circulation box (10) to collect dust that slips off the perforated plates (16).

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