Moisturizing cover for litchi grafting

Abstract

The utility model relates to the field of moisturizing covers, in particular to a moisturizing cover for litchi grafting. The technical problem is that an existing moisturizing cover cannot be used in the using process; generally, a plastic film is directly used for wrapping the grafting part of the litchi, and the plastic film is generally airtight, so that excessive water is easily accumulated at the grafting part, and germs are bred and the grafting part is rotted. According to the technical scheme, the moisturizing cover for litchi grafting comprises a right arc-shaped ventilation cover body, a left arc-shaped ventilation cover body, an arc-shaped rubber cover body and a telescopic attaching sleeve, through combination of multiple sets of ventilation holes and a moisturizing blocking piece, the grafting position of litchi wood and stock in a ventilation bin can keep ventilated and make contact with outside air, and therefore litchi grafting growth is promoted; meanwhile, moisture at the grafting position of the litchi wood and the stock is prevented from volatilizing from the ventilation holes through the moisturizing blocking piece, and the rubber extension soft sleeve and the telescopic attaching sleeve are combined, so that the arc-shaped rubber cover can adapt to different sizes of the litchi wood and the stock through the elasticity of the rubber extension soft sleeve.

Description

Technical Field

[0001] The utility model relates to the field of moisturizing covers, in particular to a moisturizing cover for litchi grafting. Background Art

[0002] Litchi is a tropical fruit that is widely cultivated and eaten. It has a spherical or ovoid fruit with a thin red or yellow skin. The flesh of the lychee is white or light pink, soft and juicy, with a sweet taste and a unique aroma. Litchi grafting is a technique of grafting lychee branches onto other fruit trees for propagating lychee trees or improving the quality of lychees. When lychees are grafted, a corresponding moisturizing device is usually required to maintain the humidity of the grafting position. The existing moisturizing cover, during use, usually directly uses a plastic film to wrap the grafting position of the lychee. Since the plastic film is usually not breathable, it is easy to cause excessive moisture to accumulate at the grafting position, causing the growth of pathogens and the rot of the grafting position. Therefore, we propose a moisturizing cover for lychee grafting to solve the above-mentioned problems. Utility Model Content

[0003] In order to overcome the existing moisturizing cover, during use, a plastic film is usually used to directly wrap the grafted part of the litchi. Since the plastic film is usually not breathable, it is easy to cause excessive moisture to accumulate in the grafted part, causing the growth of bacteria and rot of the grafted part.

[0004] The technical solution of the utility model is: a moisturizing cover for litchi grafting, comprising a right arc-shaped ventilation hood, a left arc-shaped ventilation hood, a arc-shaped rubber hood and a telescopic fitting sleeve, a left arc-shaped ventilation hood is matched with the right arc-shaped ventilation hood, a ventilation chamber for ventilating the litchi grafting position is opened between the right arc-shaped ventilation hood and the left arc-shaped ventilation hood, an arc-shaped rubber hood for elastically fitting to a rootstock is provided at the upper center of the right arc-shaped ventilation hood, and a telescopic fitting sleeve for fitting to litchi wood or a rootstock is provided at the upper end center of the arc-shaped rubber hood.

[0005] Preferably, by combining the rubber stretch soft cover with the telescopic fitting cover, the arc-shaped rubber cover can adapt to the sizes of different lychee wood and rootstock through the elasticity of the rubber stretch soft cover, and by fitting the telescopic fitting cover to the outer ends of the lychee wood and the rootstock, the gap between the arc-shaped rubber cover and the lychee wood is filled to prevent moisture and water from overflowing from the gap. By combining multiple groups of ventilation holes with moisturizing baffles, the grafting point of the lychee wood and the rootstock in the ventilation chamber can be kept ventilated and in contact with the outside air, thereby promoting the growth of the lychee grafting. At the same time, the moisturizing baffles can prevent moisture and water from evaporating from the ventilation holes at the grafting point of the lychee wood and the rootstock.

[0006] Preferably, the right arc-shaped ventilation hood includes a right hood body and a primary connecting strip, which is located at one side edge of the right hood body, a card block is provided on the inner side of the primary connecting strip, and a plurality of groups of card blocks are provided. The plurality of groups of card blocks are linearly arranged along the inner side of the primary connecting strip, and a connecting shaft is provided on the other side of the right hood body. A connecting block is provided between the right hood body and the connecting shaft, and the right hood body and the connecting shaft are fixedly connected by the connecting block. By combining the plurality of groups of card blocks with the primary connecting strip, the staff can make the right arc-shaped ventilation hood cooperate with the left arc-shaped ventilation hood, thereby protecting the grafting of the lychee wood and the rootstock, and preventing the moisture from evaporating too quickly at the grafting of the lychee wood and the rootstock.

[0007] Preferably, the left arc-shaped ventilation hood includes a left hood body and a secondary connecting strip. The upper and lower ends of the left hood body are arranged the same as those of the right hood body. The secondary connecting strip is located at one side edge of the left hood body. A clamping hole is opened on the surface of the secondary connecting strip. There are multiple groups of clamping holes. The multiple groups of clamping holes are linearly arranged along the surface of the secondary connecting strip. The clamping holes and clamping blocks are matched and engaged with each other. The multiple groups of clamping holes are combined with the secondary connecting strip, so that when installing the moisturizing hood, the staff can align the left arc-shaped ventilation hood and the right arc-shaped ventilation hood with the grafting part of the lychee wood and the rootstock, put the grafting part of the lychee wood and the rootstock into the ventilation bin between the left arc-shaped ventilation hood and the right arc-shaped ventilation hood, and then insert the multiple groups of clamping blocks into the multiple groups of clamping holes, so that the left arc-shaped ventilation hood and the right arc-shaped ventilation hood can be connected and fixed together.

[0008] Preferably, a connecting sleeve is provided on the other side of the left cover body, and two groups of connecting sleeves are provided. The two groups of connecting sleeves are symmetrically arranged along the other side of the left cover body. A connecting hole is opened in the center of the connecting sleeve, and the connecting hole passes through the connecting sleeve. The connecting shaft is located between the two groups of connecting sleeves. Both ends of the connecting shaft extend to the interior of the central connecting holes of the two groups of connecting sleeves respectively. The two groups of connecting sleeves are combined with the connecting shaft, so that the left arc-shaped ventilation hood and the right arc-shaped ventilation hood can be opened and closed by rotating along the connecting hole through the connecting shaft, which is convenient for the staff to install the moisturizing cover or open the moisturizing cover.

[0009] Preferably, two groups of arc-shaped rubber covers are provided, and the two groups of arc-shaped rubber covers are respectively located at the upper ends of the right arc-shaped ventilation hood and the left arc-shaped ventilation hood. An arc-shaped limit strip is provided below the outer end of the arc-shaped rubber cover. Two groups of arc-shaped limit strips are provided, and a limit slot is provided between the two groups of arc-shaped limit strips. By combining the arc-shaped limit strip and the limit slot, the arc-shaped rubber cover can be clamped on the inner edges of the right cover body and the left cover body through the limit slot, so that the arc-shaped rubber covers at the upper ends of the right arc-shaped ventilation hood and the left arc-shaped ventilation hood can be covered on the outside of the lychee wood and the rootstock through their own elasticity, thereby ensuring that the right arc-shaped ventilation hood and the left arc-shaped ventilation hood can be fixed at the grafting of the lychee wood and the rootstock.

[0010] Preferably, a rubber stretch soft cover is provided at the upper end of the arc-shaped rubber cover, the telescopic fitting cover is located in the center of the rubber stretch soft cover, and a fitting groove is provided on the inner side of the telescopic fitting cover. By combining the rubber stretch soft cover with the telescopic fitting cover, the arc-shaped rubber cover can adapt to the sizes of different lychee wood and rootstock through the elasticity of the rubber stretch soft cover, and the gap between the arc-shaped rubber cover and the lychee wood is filled by fitting the telescopic fitting cover to the outer ends of the lychee wood and the rootstock, thereby preventing moisture and water from overflowing from the gap.

[0011] Preferably, ventilation holes are provided at the upper and lower ends of the right cover body and the left cover body, and a plurality of ventilation holes are provided. The plurality of ventilation holes are arranged around the upper and lower ends of the right cover body and the left cover body, and a moisturizing baffle is provided to match the ventilation holes. The moisturizing baffle is located above the ventilation holes, and a fixed block is provided on one side of the moisturizing baffle, and the fixed block is located at the upper ends of the right cover body and the left cover body. The moisturizing baffle is fixedly connected to the right cover body and the left cover body through the fixed block. The plurality of ventilation holes are combined with the moisturizing baffle, so that the grafting place of the lychee wood and the rootstock in the ventilation chamber can be kept ventilated and in contact with the outside air, thereby promoting the growth of the lychee grafting. At the same time, the moisturizing baffle is used to prevent moisture from evaporating from the ventilation holes at the grafting place of the lychee wood and the rootstock.

[0012] Beneficial effects of the utility model:

[0013] 1. By combining multiple groups of card blocks with the primary connecting strip, the staff can make the right arc-shaped ventilation hood and the left arc-shaped ventilation hood cooperate with each other, so as to protect the grafting of lychee wood and the rootstock, and prevent the moisture in the grafting of lychee wood and the rootstock from evaporating too quickly. By combining multiple groups of card holes with the secondary connecting strip, the staff can align the left arc-shaped ventilation hood and the right arc-shaped ventilation hood with the grafting of lychee wood and the rootstock when installing the moisturizing hood, and put the grafting of lychee wood and the rootstock into the ventilation bin between the left arc-shaped ventilation hood and the right arc-shaped ventilation hood, and then insert multiple groups of card blocks into multiple groups of card holes, so that the left arc-shaped ventilation hood and the right arc-shaped ventilation hood can be connected and fixed together. By combining two groups of connecting sleeves with the connecting shaft, the left arc-shaped ventilation hood and the right arc-shaped ventilation hood can be rotated along the connecting hole through the connecting shaft to open and close, which is convenient for the staff to install the moisturizing hood or open the moisturizing hood.

[0014] 2. By combining the arc-shaped limit strip with the limit slot, the arc-shaped rubber cover can be clamped at the inner edge of the right cover body and the left cover body through the limit slot, so that the arc-shaped rubber cover at the upper end of the right arc-shaped ventilation cover and the left arc-shaped ventilation cover can be sleeved on the outside of the lychee wood and the rootstock through its own elasticity, thereby ensuring that the right arc-shaped ventilation cover and the left arc-shaped ventilation cover can be fixed at the grafting of the lychee wood and the rootstock, and by combining the rubber extension soft cover with the telescopic fitting cover, the arc-shaped rubber cover can adapt to the sizes of different lychee wood and rootstock through the elasticity of the rubber extension soft cover, and by fitting the telescopic fitting cover to the outer ends of the lychee wood and the rootstock, The gap between the arc-shaped rubber cover and the lychee wood is filled to prevent moisture and water from overflowing from the gap. Through the combination of multiple sets of ventilation holes and moisturizing baffles, the grafting place of the lychee wood and the rootstock in the ventilation chamber can be kept ventilated and contacted with the outside air, thereby promoting the growth of the lychee grafting. At the same time, the moisturizing baffle is used to prevent moisture and water from evaporating from the grafting place of the lychee wood and the rootstock from the ventilation holes, thereby solving the problem of existing moisturizing covers in use; usually, the grafting place of the lychee is directly wrapped with a plastic film. Since the plastic film is usually not breathable, it is easy to cause excessive moisture to accumulate in the grafting part, causing the growth of bacteria and rot of the grafting part. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of another angle of the present invention;

[0017] Figure 3 It is a diagram of a right arc-shaped ventilation hood and a left arc-shaped ventilation hood of the utility model;

[0018] Figure 4 It is a schematic diagram of the arc-shaped rubber cover of the utility model.

[0019] Explanation of the reference numerals in the accompanying drawings: 1. Right arc-shaped ventilation hood; 101. Ventilation chamber; 102. Right hood body; 103. Primary connecting strip; 104. Block; 105. Ventilation hole; 106. Connecting block; 107. Connecting shaft; 108. Fixed block; 109. Moisturizing baffle; 2. Left arc-shaped ventilation hood; 201. Left hood body; 202. Secondary connecting strip; 203. Block; 204. Connecting sleeve; 3. Arc-shaped rubber hood; 301. Arc-shaped limit strip; 302. Limiting slot; 303. Rubber extension soft cover; 4. Telescopic fitting cover; 401. Fitting slot. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] See also Figure 1-2The utility model provides an embodiment: a moisturizing cover for litchi grafting, comprising a right arc-shaped ventilation cover 1, a left arc-shaped ventilation cover 2, an arc-shaped rubber cover 3 and a telescopic fitting sleeve 4, a left arc-shaped ventilation cover 2 is matched with the right arc-shaped ventilation cover 1, a ventilation bin 101 for ventilating the litchi grafting position is provided between the right arc-shaped ventilation cover 1 and the left arc-shaped ventilation cover 2, an arc-shaped rubber cover 3 for elastically fitting a rootstock is provided at the upper center of the right arc-shaped ventilation cover 1, and a telescopic fitting sleeve 4 for fitting a litchi wood or a rootstock is provided at the upper end center of the arc-shaped rubber cover 3.

[0022] Please continue reading Figure 1-2 In this embodiment, the right arc-shaped ventilation hood 1 includes a right hood body 102 and a primary connecting strip 103. The primary connecting strip 103 is located at one side edge of the right hood body 102. A card block 104 is provided on the inner side of the primary connecting strip 103. The card block 104 is provided in multiple groups. The multiple groups of card blocks 104 are linearly arranged along the inner side of the primary connecting strip 103. A connecting shaft 107 is provided on the other side of the right hood body 102. A connecting block 106 is provided between the right hood body 102 and the connecting shaft 107. The right hood body 102 and the connecting shaft 107 are fixedly connected through the connecting block 106. By combining the multiple groups of card blocks 104 with the primary connecting strip 103, the staff can make the right arc-shaped ventilation hood 1 cooperate with the left arc-shaped ventilation hood 2, so as to protect the grafting of the lychee wood and the rootstock, and at the same time avoid the excessive evaporation of moisture at the grafting of the lychee wood and the rootstock. The right hood body 102 and the left hood body 201 The upper and lower ends of the right cover 102 and the left cover 201 are both provided with ventilation holes 105, and the ventilation holes 105 are provided with multiple groups. The multiple groups of ventilation holes 105 are arranged around the upper and lower ends of the right cover body 102 and the left cover body 201, and a moisturizing baffle 109 is provided to match the ventilation holes 105. The moisturizing baffle 109 is located above the ventilation holes 105, and a fixing block 108 is provided on one side of the moisturizing baffle 109. The fixing block 108 is located at the upper ends of the right cover body 102 and the left cover body 201, and the moisturizing baffle 109 is fixedly connected to the right cover body 102 and the left cover body 201 through the fixing block 108. The multiple groups of ventilation holes 105 are combined with the moisturizing baffle 109, so that the grafting place of the lychee wood and the rootstock in the ventilation bin 101 can be kept ventilated and in contact with the outside air, thereby promoting the growth of the lychee grafting, and at the same time, the moisturizing baffle 109 is used to prevent moisture from volatilizing from the grafting place of the lychee wood and the rootstock from volatilizing from the ventilation holes 105.

[0023] See also Figure 1-3In the present embodiment, the left arc-shaped ventilation hood 2 includes a left hood body 201 and a secondary connecting strip 202. The upper end and the lower end of the left hood body 201 are arranged in the same manner as the right hood body 102. The secondary connecting strip 202 is located at one side edge of the left hood body 201. A clamping hole 203 is opened on the surface of the secondary connecting strip 202. The clamping hole 203 is provided with a plurality of groups. The plurality of groups of clamping holes 203 are linearly arranged along the surface of the secondary connecting strip 202. The clamping holes 203 and the clamping blocks 104 are matched and engaged with each other. The plurality of groups of clamping holes 203 are combined with the secondary connecting strip 202, so that when installing the moisturizing hood, the staff can align the left arc-shaped ventilation hood 2 and the right arc-shaped ventilation hood 1 with the grafting part of the lychee wood and the stock, put the grafting part of the lychee wood and the stock into the ventilation bin 101 between the left arc-shaped ventilation hood 2 and the right arc-shaped ventilation hood 1, and then Insert multiple groups of card blocks 104 into multiple groups of card holes 203, so that the left arc-shaped ventilation hood 2 and the right arc-shaped ventilation hood 1 can be connected and fixed together, a connecting sleeve 204 is provided on the other side of the left cover body 201, and two groups of connecting sleeves 204 are provided. The two groups of connecting sleeves 204 are symmetrically arranged along the other side of the left cover body 201, and a connecting hole is opened in the center of the connecting sleeve 204. The connecting hole passes through the connecting sleeve 204, and the connecting shaft 107 is located between the two groups of connecting sleeves 204. The two ends of the connecting shaft 107 extend to the interior of the central connecting holes of the two groups of connecting sleeves 204 respectively. The two groups of connecting sleeves 204 are combined with the connecting shaft 107, so that the left arc-shaped ventilation hood 2 and the right arc-shaped ventilation hood 1 can be opened and closed by rotating along the connecting hole through the connecting shaft 107, which is convenient for the staff to install the moisturizing cover or open the moisturizing cover.

[0024] See also Figure 1-4 In this embodiment, two groups of arc-shaped rubber covers 3 are provided, and the two groups of arc-shaped rubber covers 3 are respectively located at the upper ends of the right arc-shaped ventilation cover 1 and the left arc-shaped ventilation cover 2. An arc-shaped limiting strip 301 is provided below the outer end of the arc-shaped rubber cover 3. Two groups of arc-shaped limiting strips 301 are provided, and a limiting card slot 302 is provided between the two groups of arc-shaped limiting strips 301. By combining the arc-shaped limiting strip 301 with the limiting card slot 302, the arc-shaped rubber cover 3 can be clamped at the inner edge of the right cover body 102 and the left cover body 201 through the limiting card slot 302, so that the arc-shaped rubber cover 3 at the upper end of the right arc-shaped ventilation cover 1 and the left arc-shaped ventilation cover 2 can be sleeved on the lychee wood and the anvil through its own elasticity. The outside of the wood is ensured to ensure that the right arc-shaped ventilation hood 1 and the left arc-shaped ventilation hood 2 can be fixed at the grafting place of the lychee wood and the rootstock. The upper end of the arc-shaped rubber hood 3 is provided with a rubber extension soft sleeve 303, and the telescopic fitting sleeve 4 is located at the center of the rubber extension soft sleeve 303. The inner side of the telescopic fitting sleeve 4 is provided with a fitting groove 401. The rubber extension soft sleeve 303 is combined with the telescopic fitting sleeve 4, so that the arc-shaped rubber hood 3 can adapt to the sizes of different lychee wood and rootstock through the elasticity of the rubber extension soft sleeve 303, and the gap between the arc-shaped rubber hood 3 and the lychee wood is filled by fitting the telescopic fitting sleeve 4 to prevent moisture and water from overflowing from the gap.

[0025] When working, the staff first rotates the left arc-shaped ventilation hood 2 and the right arc-shaped ventilation hood 1 along the connecting hole through the connecting shaft 107 to open them, and then aligns the left arc-shaped ventilation hood 2 and the right arc-shaped ventilation hood 1 with the grafting part of the lychee wood and the rootstock, and puts the grafting part of the lychee wood and the rootstock into the ventilation bin 101 between the left arc-shaped ventilation hood 2 and the right arc-shaped ventilation hood 1, and then inserts multiple groups of card blocks 104 into multiple groups of card holes 203, so that the left arc-shaped ventilation hood 2 and the right arc-shaped ventilation hood 1 can be connected and fixed together.

[0026] Next, the staff will use their own elasticity to put the curved rubber covers 3 on the upper ends of the right curved ventilation hood 1 and the left curved ventilation hood 2 onto the outside of the lychee wood and the rootstock, so that the right curved ventilation hood 1 and the left curved ventilation hood 2 can be fixed at the grafting of the lychee wood and the rootstock, and through the combination of multiple groups of ventilation holes 105 and moisturizing baffles 109, the grafting of the lychee wood and the rootstock in the ventilation chamber 101 can be kept ventilated and in contact with the outside air, thereby promoting the growth of the lychee grafting, and at the same time, the moisturizing baffles 109 can prevent moisture at the grafting of the lychee wood and the rootstock from evaporating from the ventilation holes 105.

[0027] According to the above steps, the staff first rotates the left arc-shaped ventilation hood 2 and the right arc-shaped ventilation hood 1 along the connecting hole to open them through the connecting shaft 107, and then puts the grafting part of the lychee wood and the stock into the ventilation chamber 101 between the left arc-shaped ventilation hood 2 and the right arc-shaped ventilation hood 1, and then inserts the multiple groups of card blocks 104 into the multiple groups of card holes 203. At the same time, the arc-shaped rubber cover 3 can be put on the outside of the lychee wood and the stock through its own elasticity, so that the right arc-shaped ventilation hood 1 and the left arc-shaped ventilation hood 2 can be fixed at the grafting part of the lychee wood and the stock, and the multiple groups of ventilation holes 105 are combined with the moisturizing baffle 109, so that the grafting part of the lychee wood and the stock in the ventilation chamber 101 can keep ventilated and in contact with the outside air, thereby promoting the growth of the lychee grafting, and at the same time, the moisturizing baffle 109 is used to prevent moisture in the grafting part of the lychee wood and the stock from evaporating from the ventilation hole 105.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A moisturizing cover for litchi grafting, comprising a right arc-shaped ventilation cover (1); characterized in that: The invention also comprises a left arc-shaped ventilation hood (2), an arc-shaped rubber hood (3) and a telescopic fitting sleeve (4); the left arc-shaped ventilation hood (2) is matched with the right arc-shaped ventilation hood (1); a ventilation chamber (101) for ventilating the litchi grafting site is provided between the right arc-shaped ventilation hood (1) and the left arc-shaped ventilation hood (2); a arc-shaped rubber hood (3) for elastically fitting a rootstock is provided at the center of the upper part of the right arc-shaped ventilation hood (1); and a telescopic fitting sleeve (4) for fitting a litchi wood or a rootstock is provided at the center of the upper end of the arc-shaped rubber hood (3).

2. The moisturizing cover for litchi grafting according to claim 1, characterized in that: The right arc-shaped ventilation hood (1) comprises a right hood body (102) and a primary connecting strip (103), wherein the primary connecting strip (103) is located at one side edge of the right hood body (102), a clamping block (104) is provided on the inner side of the primary connecting strip (103), a plurality of groups of clamping blocks (104) are provided, and the plurality of groups of clamping blocks (104) are linearly arranged along the inner side of the primary connecting strip (103), a connecting shaft (107) is provided on the other side of the right hood body (102), a connecting block (106) is provided between the right hood body (102) and the connecting shaft (107), and the right hood body (102) and the connecting shaft (107) are fixedly connected via the connecting block (106).

3. The moisturizing cover for litchi grafting according to claim 2, characterized in that: The left arc-shaped ventilation hood (2) comprises a left hood body (201) and a secondary connecting strip (202). The upper end and the lower end of the left hood body (201) are arranged in the same manner as the right hood body (102). The secondary connecting strip (202) is located at a side edge of the left hood body (201). A clamping hole (203) is provided on the surface of the secondary connecting strip (202). The clamping holes (203) are provided in a plurality of groups. The plurality of groups of clamping holes (203) are linearly arranged along the surface of the secondary connecting strip (202). The clamping holes (203) and the clamping blocks (104) are arranged to match and engage with each other.

4. The moisturizing cover for litchi grafting according to claim 3, characterized in that: A connecting sleeve (204) is provided on the other side of the left cover body (201), and two groups of connecting sleeves (204) are provided. The two groups of connecting sleeves (204) are symmetrically arranged at intervals along the other side of the left cover body (201), and a connecting hole is opened at the center of the connecting sleeve (204), and the connecting hole passes through the connecting sleeve (204). The connecting shaft (107) is located between the two groups of connecting sleeves (204), and the two ends of the connecting shaft (107) respectively extend to the inside of the central connecting holes of the two groups of connecting sleeves (204).

5. The moisturizing cover for litchi grafting according to claim 1, characterized in that: There are two groups of arc-shaped rubber covers (3), which are respectively located at the upper ends of the right arc-shaped ventilation cover (1) and the left arc-shaped ventilation cover (2). An arc-shaped limiting strip (301) is provided below the outer end of the arc-shaped rubber cover (3). There are two groups of arc-shaped limiting strips (301), and a limiting slot (302) is provided between the two groups of arc-shaped limiting strips (301).

6. The moisturizing cover for litchi grafting according to claim 5, characterized in that: The upper end of the arc-shaped rubber cover (3) is provided with a rubber extension soft cover (303), the telescopic fitting cover (4) is located at the center of the rubber extension soft cover (303), and a fitting groove (401) is provided on the inner side of the telescopic fitting cover (4).

7. The moisturizing cover for litchi grafting according to claim 3, characterized in that: The upper and lower ends of the right cover body (102) and the left cover body (201) are both provided with ventilation holes (105), and a plurality of ventilation holes (105) are provided. The plurality of ventilation holes (105) are arranged around the upper and lower ends of the right cover body (102) and the left cover body (201), and a moisturizing baffle (109) is provided to match the ventilation holes (105). The moisturizing baffle (109) is located above the ventilation holes (105), and a fixing block (108) is provided on one side of the moisturizing baffle (109). The fixing block (108) is located at the upper ends of the right cover body (102) and the left cover body (201), and the moisturizing baffle (109) is fixedly connected to the right cover body (102) and the left cover body (201) through the fixing block (108).

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