Nursery stock low-temperature culture room

Abstract

The utility model discloses a nursery stock low-temperature culture room, which relates to the technical field of nursery stock culture rooms, and comprises a box body and a box cover, the front surface of the box body is provided with a placing port, the box cover is arranged in the placing port, the front surface of the box body is provided with fastening components A at four corners of the box cover, the fastening components A fix the box cover and the box body, and a plurality of filter plates are arranged in the box body. An exhaust pipe is mounted below the bottommost filter plate on one side of the bottom end of the box body, and the exhaust pipe is communicated with the interior of the box body. Two low-temperature assemblies are installed at the upper end of the box body, and the upper ends of the low-temperature assemblies are located outside the box body. According to the nursery stock low-temperature culture chamber, the low-temperature assembly is arranged, when dry ice is added, only the piston in one sleeve needs to be taken out, then the dry ice is put in, when the dry ice is taken out, the interior of the box body is not communicated with the outside, and therefore severe temperature changes cannot be caused, the nursery stock culture environment cannot be affected, and the nursery stock culture efficiency is improved. And the stability of the growth state is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of seedling cultivation rooms, in particular to a seedling low-temperature cultivation room. Background Art

[0002] When fruit tree seedlings are propagated through asexual reproduction methods such as cuttings, layering, division, and grafting, virus-carrying propagation materials will transmit the virus to new plant individuals, which will continue to cause harm, resulting in a decrease in fruit tree yield, quality, and resistance. Studies have found that the distribution of viruses in plants is uneven, and usually the apical meristem of plants does not carry viruses or the virus concentration is very low. Therefore, it is possible to obtain virus-free seedlings through shoot tip culture. At present, the commonly used plant detoxification methods include heat treatment, shoot tip culture, and ultra-low temperature detoxification. Among them, the ultra-low temperature detoxification method has a significantly better detoxification rate and a production cycle of detoxified seedlings than other detoxification methods.

[0003] CN220965766U discloses a seedling ultra-low temperature detoxification culture room, comprising: a culture room, a fill light is installed inside the culture room, an infusion tube is connected to the top of the culture room, one end of the infusion tube is connected to a liquid tank, a pressure pump is arranged in the liquid tank, the other end of the infusion tube is connected to a spray pipe, a plurality of spray heads are arranged on the spray pipe, a liquid valve is arranged on the infusion tube, a culture rack is arranged inside the culture room, a support rack is installed at the bottom of the culture rack, geothermal is arranged on the floor of the culture room, a hot water pipe is connected to the geothermal, a hot water valve is arranged on the hot water pipe, a temperature sensor is arranged on the side wall of the culture room, and according to different types of seedlings, two methods of liquid nitrogen cooling and dry ice cooling can be selected for ultra-low temperature detoxification. For liquid nitrogen cooling and dry ice cooling, it can also be selected whether liquid nitrogen or dry ice enters the culture room for cooling to meet the ultra-low temperature detoxification needs of different types of seedlings, and the environment of the culture room is adjusted after detoxification to meet the need for continued cultivation.

[0004] However, the method of using a dry ice valve to release dry ice into the culture chamber is not suitable. Although the purpose is to extend the refrigeration time, storing dry ice in a dry ice can requires the dry ice can to maintain a good seal. The best way at present is to directly place the dry ice in the incubator to evaporate freely, but this method is likely to cause temperature imbalance inside the culture chamber when placing the dry ice. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a seedling low-temperature culture room, which includes a box body and a box cover, the front of the box body is provided with a placement opening, the box cover is located in the placement opening, the front of the box body is provided with fastening components A at the four corners of the box cover, the fastening components A fix the box cover and the box body, a plurality of filter plates are provided in the box body, an exhaust pipe is installed under the lowest filter plate on one side of the bottom end of the box body, and the exhaust pipe is connected to the box body. Two groups of low-temperature components are installed at the upper end of the box body, the upper ends of the low-temperature components are outside the box body, and the upper end of the box body is provided with a fastening component B between the low-temperature components, and the fastening component B fastens the low-temperature components and seals the low-temperature components.

[0006] Preferably, the low-temperature component includes a sleeve, a piston, a connecting plate, a sealing ring and an end cover. A connecting pipe is provided between the two sleeves. The two sleeves are connected by the connecting pipe. The sleeve is fixedly inserted on the upper end of the casing. A circle of through grooves communicating with the interior of the sleeve is provided on the outer side of the bottom end of the sleeve. The sealing ring is fixed on one end of the sleeve outside the casing. The end cover is arranged on the sealing ring. Two pistons are provided. The two pistons are arranged up and down. The connecting plate is between the two pistons and fixes the two pistons. The connecting plate is located on one side of the two pistons.

[0007] Preferably, the upper surface of the piston at the bottom is a groove-shaped structure, the piston is sealed with the inner wall of the sleeve, and a handle A is fixedly mounted on the uppermost piston.

[0008] Preferably, the fastening assembly B includes a rotating shaft, a swing plate and a screw rod. The rotating shaft is fixed to the box body and is located between two sleeves. The swing plate is installed on the rotating shaft and is rotationally connected thereto. Two screw rods are provided. The screw rods pass through the ends of the swing plate from top to bottom and are threadedly connected thereto. The lower end of the screw rod corresponds to the end cover.

[0009] Preferably, a handle B is installed on the upper end of the screw.

[0010] Preferably, the fastening assembly A includes a swing arm and a stud, the swing arm is mounted on the box body and is rotatably connected thereto, the stud passes through one end of the swing arm away from the box body and is threadedly connected thereto, and the stud contacts the box cover.

[0011] Preferably, the distances between the filter plates are the same, and the uppermost filter plate is located below the sleeve.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting up a low-temperature component, when adding dry ice, you only need to take out the piston inside one of the sleeves, and then put the dry ice in. When taking it out, the inside of the box is not connected to the outside world, so it will not cause drastic temperature changes, which can keep the environment for seedling cultivation unaffected and ensure the stability of its growth state.

[0014] 2. By setting up a filter plate, the seedling culture dish is placed on the filter plate and is not in direct contact with the dry ice. The temperature released by the dry ice can pass through the filter plate and act on the ecological environment, avoiding the situation in which dry ice falls and freezes the leaves of plants as described in the comparative documents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

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

[0017] Figure 2 This is a schematic diagram of the internal structure of the box of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the low-temperature component of the utility model;

[0019] Figure 4 This is a schematic diagram of the structural separation of the low-temperature component of the utility model;

[0020] Figure 5 For this utility model Figure 1 A schematic diagram of the enlarged structure at point A in the middle.

[0021] Description of reference numerals:

[0022] 1. Box body; 2. Box cover; 3. Fastening assembly A; 301. Swing arm; 302. Stud; 4. Filter plate; 5. Exhaust pipe; 6. Low-temperature assembly; 601. Sleeve; 602. Piston; 603. Connecting plate; 604. Sealing ring; 605. End cover; 606. Connecting pipe; 607. Handle A; 608. Through groove; 7. Fastening assembly B; 701. Rotating shaft; 702. Swing plate; 703. Screw; 704. Handle B. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] Reference Figure 1-5, which is an embodiment of the utility model, provides a seedling low-temperature culture room, which includes a box body 1 and a box cover 2. The front of the box body 1 is provided with a placement opening, and the box cover 2 is located in the placement opening. The front of the box body 1 is located at the four corners of the box cover 2 and are equipped with fastening components A3, and the fastening components A3 fix the box cover 2 and the box body 1. A plurality of filter plates 4 are provided in the box body 1. An exhaust pipe 5 is installed under the lowest filter plate 4 on one side of the bottom end of the box body 1, and the exhaust pipe 5 is connected to the box body 1. Two groups of low-temperature components 6 are installed at the upper end of the box body 1, and the upper ends of the low-temperature components 6 are outside the box body 1. The upper end of the box body 1 is located between the low-temperature components 6 and a fastening component B7 is installed, and the fastening component B7 fastens the low-temperature components 6 and seals the low-temperature components 6.

[0025] The box cover 2 is directly placed and installed. When all the fastening components A3 are loosened, the box cover 2 can be removed to facilitate the placement of the seedling planting pot. The exhaust pipe 5 needs to be installed with a valve before use, which can achieve both drainage and exhaust.

[0026] The cryogenic assembly 6 includes a sleeve 601, a piston 602, a connecting plate 603, a sealing ring 604 and an end cover 605. A connecting pipe 606 is provided between the two sleeves 601. The two sleeves 601 are connected by the connecting pipe 606. The sleeve 601 is fixedly plugged on the upper end of the box body 1. The outer side of the bottom end of the sleeve 601 is provided with a circle of through grooves 608 connected to the inside thereof. The sealing ring 604 is fixed on one end of the sleeve 601 outside the box body 1. The end cover 605 is arranged on the sealing ring 604. There are two pistons 602, which are arranged up and down. The connecting plate 603 is between the two pistons 602 and fixes the two pistons 602. The connecting plate 603 is located on one side of the two pistons 602. The upper surface of the piston 602 at the bottom is a groove-shaped structure. The piston 602 is sealed with the inner wall of the sleeve 601. The uppermost piston 602 is fixedly installed with a handle A607.

[0027] The piston 602 is covered with a piston ring on the outside, which cooperates with the sleeve 601. The two can achieve low-pressure sealing and prevent the two from sticking together due to low temperature. The through groove 608 at the bottom of the sleeve 601 can make the cold air quickly diffuse to the vicinity of the plant. The position of the connecting plate 603 does not affect the placement of dry ice, and the handle A607 can lift the two pistons 602 more conveniently.

[0028] The fastening assembly B7 includes a rotating shaft 701, a swing plate 702 and a screw rod 703. The rotating shaft 701 is fixed to the box body 1 and is located between the two sleeves 601. The swing plate 702 is mounted on the rotating shaft 701 and is rotatably connected thereto. Two screw rods 703 are provided. The screw rods 703 pass through the ends of the swing plate 702 from top to bottom and are threadedly connected thereto. The lower end of the screw rod 703 corresponds to the end cover 605. The upper ends of the screw rods 703 are all mounted with handles B704.

[0029] The swing plate 702 can rotate. After the rotation, it does not affect the removal of the end cover 605. When tightening, the end cover 605 can be pressed tightly, so that the end cover 605 is in close contact with the sealing tube to seal.

[0030] The fastening assembly A3 includes a swing arm 301 and a stud 302 . The swing arm 301 is mounted on the box body 1 and is rotationally connected thereto. The stud 302 penetrates one end of the swing arm 301 away from the box body 1 and is threadedly connected thereto. The stud 302 contacts the box cover 2 .

[0031] The distances between the filter plates 4 are the same, and the uppermost filter plate 4 is located below the sleeve 601. The mesh size of the filter plate 4 needs to be smaller than the minimum size that the dry ice chips can damage the blades.

[0032] During use, one of the screw rods 703 is rotated to remove the end cover 605 from the sealing ring 604. At this time, the sleeve 601 is opened, and the handle A607 is pulled to remove the piston 602 from the sleeve 601. When the upper piston 602 is removed from the sleeve 601, the stop is stopped. At this time, dry ice is placed on the lower piston 602 to complete the adding work. Since the lower piston 602 is still inside the sleeve 601 when the piston 602 is taken out, the interior of the box body 1 is connected to the outside. The connecting pipe 606 can be used to transport cold air into the other sleeve 601 to prevent the ecological temperature around the seedlings corresponding to the sleeve 601 from changing. The seedlings need to be placed on the filter plate 4, and the top filter plate 4 is not used for planting. The top filter plate 4 can prevent dry ice chips from falling onto the leaves of the plants, and the exhaust pipe 5 can be opened regularly to exhaust air and condensed water.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A seedling low-temperature culture room, comprising a box (1), characterized in that: It also includes a box cover (2), a placement opening is provided on the front of the box body (1), the box cover (2) is located in the placement opening, and fastening components A (3) are installed at the four corners of the box cover (2) on the front of the box body (1), and the fastening components A (3) fix the box cover (2) and the box body (1), and a plurality of filter plates (4) are provided in the box body (1), and an exhaust pipe (5) is installed under the lowest filter plate (4) on one side of the bottom end of the box body (1), and the exhaust pipe (5) is connected to the inside of the box body (1), and two groups of low-temperature components (6) are installed on the upper end of the box body (1), and the upper ends of the low-temperature components (6) are located outside the box body (1), and fastening components B (7) are installed between the low-temperature components (6) on the upper end of the box body (1), and the fastening components B (7) fasten the low-temperature components (6) and seal the low-temperature components (6); The low temperature assembly (6) comprises a sleeve (601), a piston (602), a connecting plate (603), a sealing ring (604) and an end cover (605). A connecting pipe (606) is provided between the two sleeves (601). The sleeves (601) are fixedly plugged into the upper end of the casing (1). A through groove (608) communicating with the interior of the sleeve (601) is provided on the outer side of the bottom end of the sleeve (601). The sealing ring (604) is fixed to one end of the sleeve (601) outside the casing (1). The end cover (605) is provided with a connecting pipe (606). The sealing ring (604) is placed on the sealing ring. Two pistons (602) are provided. The two pistons (602) are arranged up and down. The connecting plate (603) is located between the two pistons (602) and fixes the two pistons (602). The connecting plate (603) is located on one side of the two pistons (602). The upper surface of the piston (602) at the bottom is a groove-shaped structure. The piston (602) is sealed with the inner wall of the sleeve (601). A handle A (607) is fixedly installed on the uppermost piston (602).

2. The seedling low temperature culture chamber according to claim 1, characterized in that: The fastening assembly B (7) comprises a rotating shaft (701), a swing plate (702) and a screw rod (703); the rotating shaft (701) is fixed to the housing (1) and is located between the two sleeves (601); the swing plate (702) is mounted on the rotating shaft (701) and is rotatably connected thereto; two screw rods (703) are provided, and the screw rods (703) penetrate the ends of the swing plate (702) from top to bottom and are threadedly connected thereto; the lower ends of the screw rods (703) correspond to the end caps (605).

3. The seedling low temperature culture chamber according to claim 2, characterized in that: A handle B (704) is mounted on the upper end of each screw rod (703).

4. The seedling low temperature culture chamber according to claim 1, characterized in that: The fastening assembly A (3) comprises a swing arm (301) and a stud (302); the swing arm (301) is mounted on the box body (1) and is rotatably connected thereto; the stud (302) passes through an end of the swing arm (301) away from the box body (1) and is threadedly connected thereto; and the stud (302) is in contact with the box cover (2).

5. The seedling low temperature culture chamber according to claim 1, characterized in that: The distances between the filter plates (4) are all the same, and the top filter plate (4) is located below the sleeve (601).

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