Anti-freezing device for pear tree trunk
By designing a combined structure for the protective sleeve, the problem of existing pear tree trunk antifreeze devices not being suitable for trunks of different thicknesses was solved, achieving effective antifreeze protection for pear tree trunks and improving the applicability and flexibility of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-04-03
AI Technical Summary
Existing anti-freezing devices for pear tree trunks are not suitable for trunks of different thicknesses, which reduces the applicability and flexibility of the devices.
A combined structure including a protective sleeve, a wrapping tape, a connecting block, a fixing groove, a partition, a fixing rod, an adjusting block, a pull plate, an elastic element, a moving block, a through-hole, and a rubber block is designed. The protective sleeve wraps around the pear tree trunk, and the wrapping tape and rubber block are used for positioning and fixing, which can adapt to tree trunks of different thicknesses.
It achieves effective frost protection for pear tree trunks, improves the applicability and flexibility of the protective sleeve, and ensures the wrapping effect for trunks of different thicknesses.
Smart Images

Figure CN224069321U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tree trunk antifreeze technology, specifically an antifreeze device for pear tree trunks. Background Technology
[0002] China's pear cultivation area and yield are second only to apples. Hebei, Shandong, and Liaoning provinces are the main pear-producing areas in my country, accounting for about half of the country's pear cultivation and 60% of its yield. Hebei province alone accounts for about one-third of China's annual output. Pear fruit is edible and has high nutritional and medicinal value. The bark of young trees is smooth, but it becomes rougher, cracked, or peels as the tree ages. Since most pear orchards are located in northern regions, winter frost protection for pear tree trunks is essential to ensuring pear production.
[0003] According to application number CN202223024136.5, a windproof and frost-proof device for seedling planting is disclosed, which relates to the field of seedling planting technology. It includes a seedling trunk, two fixed frames are provided on the outer surface of the seedling trunk, the rear ends of the two fixed frames are hinged together by a pin, the inner wall of the two fixed frames is equipped with a heat insulation sleeve, and the inner wall of the heat insulation sleeve is in contact with the outer surface of the seedling trunk, the outer surface of the two fixed frames is equipped with a handle, the outer surface of the two handles is equipped with an anti-slip sleeve, and two snap-fit components are installed between the two fixed frames.
[0004] The antifreeze devices for tree trunks in the above cases are not convenient for protecting tree trunks of different thicknesses, thus reducing the applicability and flexibility of the antifreeze devices. Therefore, we provide an antifreeze device for pear tree trunks. Utility Model Content
[0005] The purpose of this invention is to provide an antifreeze device for pear tree trunks to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a frost protection device for pear tree trunks, comprising a protective sleeve, the protective sleeve being composed of a waterproof outer layer and an inner layer, two wrapping tapes sewn onto the left side of the protective sleeve, and a connecting block provided on the right side of the protective sleeve, the inner layer being composed of a flame-retardant layer, a heat-insulating layer, a thermal insulation layer, and a mildew-proof layer, the heat-insulating layer being disposed on the inner wall of the flame-retardant layer, the thermal insulation layer being disposed on the inner wall of the heat-insulating layer, and the mildew-proof layer being disposed on the inner wall of the thermal insulation layer, and further comprising a fixing groove, the fixing groove being formed in the connecting block. On the right side, a partition is installed on the inner wall of the fixing groove. A fixing rod is installed on the top and bottom of the partition. The end of the fixing rod away from the partition is fixedly connected to the inner wall of the fixing groove. An adjusting block is slidably connected to the surface of the fixing rod. A pull plate is installed on the right side of the adjusting block. An elastic element is sleeved on the surface of the fixing rod. A moving block is installed on the side of the two adjusting blocks that are far apart from each other. Two through holes are opened on the top and bottom of the front of the connecting block. The side of the moving block near the through hole passes through the fixing groove and the through hole in sequence and extends into the interior of the through hole.
[0007] Preferably, a rubber block for use with the wrapping tape is installed on the side of the movable block away from the adjusting block, and the left side of the connecting block is sewn to the protective sleeve through three connecting cloths. By setting the rubber block, it is convenient to limit and fix the wrapping tape passing through the opening, and to make it convenient to wrap the protective sleeve around the tree trunk for protection.
[0008] Preferably, the flame-retardant layer is made of aramid fiber, the heat insulation layer is made of polyester fiber, the thermal insulation layer is made of thermal insulation cotton, and the mildew-proof layer is made of kapok fiber.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0010] This utility model utilizes the cooperation of a protective sleeve, a wrapping tape, a connecting block, a fixing groove, a partition, a fixing rod, an adjusting block, a pull plate, an elastic element, a moving block, a through-hole, a rubber block, and a connecting cloth to easily wrap the protective sleeve around the pear tree trunk, providing protection and warmth, and achieving an antifreeze effect. Furthermore, the wrapping tape passes through the through-hole and is limited by the rubber block, allowing the protective sleeve to wrap and protect tree trunks of different thicknesses, thus improving the applicability and flexibility of the protective sleeve during use. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0012] Figure 2 This is a structural cross-sectional view of the connecting block, fixing groove, rubber block, and connecting cloth of this utility model from the front view.
[0013] Figure 3This is a top view of the structure of the protective sleeve of this utility model;
[0014] Figure 4 This is a top-view cross-sectional view of the structure of the inner layer of this utility model.
[0015] In the diagram: 1 Protective cover, 2 Waterproof outer fabric, 3 Inner layer, 31 Flame retardant layer, 32 Heat insulation layer, 33 Warm insulation layer, 34 Anti-mildew layer, 4 Wrapping tape, 5 Connecting block, 6 Fixing groove, 7 Partition block, 8 Fixing rod, 9 Adjusting block, 10 Pull plate, 11 Elastic element, 12 Moving block, 13 Through opening, 14 Rubber block, 15 Connecting fabric. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figure 1-4 A frost protection device for pear tree trunks includes a protective sleeve 1, which consists of a waterproof outer layer 2 and an inner layer 3. By setting the waterproof outer layer 2, the waterproof effect of the surface of the protective sleeve 1 is improved. Two wrapping tapes 4 are sewn on the left side of the protective sleeve 1, and a connecting block 5 is set on the right side of the protective sleeve 1.
[0018] It also includes a fixing groove 6, which is located on the right side of the connecting block 5. A partition 7 is fixedly connected to the inner wall of the fixing groove 6. A fixing rod 8 is fixedly connected to both the top and bottom of the partition 7. The end of the fixing rod 8 away from the partition 7 is fixedly connected to the inner wall of the fixing groove 6. An adjusting block 9 is slidably connected to the surface of the fixing rod 8. A pull plate 10 is fixedly connected to the right side of the adjusting block 9. The left side of the pull plate 10 is in slidable contact with the right side of the connecting block 5. An elastic element 11 is sleeved on the surface of the fixing rod 8. The elastic element 11 is made of a spring, as shown in the figure. At this time, the spring has the function of driving the adjustment. The force of the movement of the segment block 9 away from the spacer block 7 is fixedly connected to the moving block 12 on the side of the two adjusting blocks 9 that are far apart from each other. The top and bottom of the front of the connecting block 5 are opened with two through holes 13. The side of the moving block 12 near the through hole 13 passes through the fixing groove 6 and the through hole 13 in sequence and extends into the inside of the through hole 13. The side of the moving block 12 away from the adjusting block 9 is fixedly connected to a rubber block 14 that works with the winding tape 4. The surface of the rubber block 14 slides in contact with the inner wall of the through hole 13. The left side of the connecting block 5 is sewn to the protective sleeve 1 through three connecting cloths 15.
[0019] Through the cooperation of the protective sleeve 1, the wrapping tape 4, the connecting block 5, the fixing groove 6, the partition block 7, the fixing rod 8, the adjusting block 9, the pull plate 10, the elastic element 11, the moving block 12, the opening 13, the rubber block 14, and the connecting cloth 15, the protective sleeve 1 can be easily wrapped around the pear tree trunk to protect and keep it warm, thus achieving the effect of frost prevention. Moreover, the wrapping tape 4 passes through the opening 13 and is limited by the rubber block 14, so that the protective sleeve 1 can wrap and protect tree trunks of different thicknesses, improving the applicability and flexibility of the protective sleeve 1 during use.
[0020] Furthermore, the inner layer 3 is composed of a flame-retardant layer 31, a heat insulation layer 32, a thermal insulation layer 33, and a mildew-proof layer 34. The flame-retardant layer 31 is made of aramid fiber. The heat insulation layer 32 is disposed on the inner wall of the flame-retardant layer 31 and is made of polyester fiber. The thermal insulation layer 33 is disposed on the inner wall of the heat insulation layer 32 and is made of thermal insulation cotton. The mildew-proof layer 34 is disposed on the inner wall of the thermal insulation layer 33 and is made of kapok fiber.
[0021] Furthermore, by setting a flame-retardant layer 31, the flame-retardant effect of the protective sleeve 1 is improved, preventing external fires from easily igniting the protective sleeve 1 and avoiding damage to the tree trunk. By setting a heat insulation layer 32, the heat insulation effect of the tree trunk is improved, preventing heat loss from the tree trunk surface through the protective sleeve 1. By setting a heat-insulating layer 33, the heat-insulating effect of the protective sleeve 1 is improved, thereby improving the effect of frost protection for the tree trunk. By setting an anti-mildew layer 34, the anti-mildew effect inside the protective sleeve 1 is improved.
[0022] In use, the protective sleeve 1 is wrapped around the surface of the pear tree trunk. Then, the two pull plates 10 are pulled closer together. The pull plates 10 are pressed by the adjusting block 9 to move closer to the elastic element 11 and the spacer 7. The adjusting block 9 moves the rubber block 14 closer to the spacer 7 through the moving block 12. Then, the wrapping tape 4 passes through the opening 13, so that the protective sleeve 1 tightly wraps the tree trunk. Then, the pull plates 10 are released. Through the restoring force of the elastic element 11, the adjusting block 9 moves the moving block 12 and the rubber block 14 closer to the wrapping tape 4, so that the rubber block 14 presses and fixes the wrapping tape 4, thus completing the wrapping of the pear tree trunk and achieving the effect of frost protection.
[0023] In summary, this antifreeze device for pear tree trunks solves the problems mentioned in the background art through the cooperation of the protective sleeve 1, the wrapping tape 4, the connecting block 5, the fixing groove 6, the partition block 7, the fixing rod 8, the adjusting block 9, the pull plate 10, the elastic element 11, the moving block 12, the opening 13, the rubber block 14, and the connecting cloth 15.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A frost protection device for pear tree trunks, characterized in that: The system includes a protective sleeve (1), which is composed of a waterproof outer fabric (2) and an inner layer (3). Two wrapping tapes (4) are sewn on the left side of the protective sleeve (1). A connecting block (5) is provided on the right side of the protective sleeve (1). The inner layer (3) is composed of a flame-retardant layer (31), a heat insulation layer (32), a thermal insulation layer (33), and a mildew-proof layer (34). The heat insulation layer (32) is located on the inner wall of the flame-retardant layer (31), the thermal insulation layer (33) is located on the inner wall of the heat insulation layer (32), and the mildew-proof layer (34) is located on the inner wall of the thermal insulation layer (33). The system also includes a fixing groove (6), which is located on the right side of the connecting block (5). The inner wall of the fixing groove (6) is used for mounting... There is a partition (7), and a fixing rod (8) is installed on the top and bottom of the partition (7). The end of the fixing rod (8) away from the partition (7) is fixedly connected to the inner wall of the fixing groove (6). An adjusting block (9) is slidably connected to the surface of the fixing rod (8). A pull plate (10) is installed on the right side of the adjusting block (9). An elastic element (11) is sleeved on the surface of the fixing rod (8). A moving block (12) is installed on the side of the two adjusting blocks (9) that are far apart from each other. Two through holes (13) are opened on the top and bottom of the front of the connecting block (5). The side of the moving block (12) near the through hole (13) passes through the fixing groove (6) and the through hole (13) in sequence and extends into the interior of the through hole (13).
2. The antifreeze device for pear tree trunks according to claim 1, characterized in that: The movable block (12) is equipped with a rubber block (14) that works with the winding tape (4) on the side away from the adjusting block (9), and the left side of the connecting block (5) is sewn to the protective sleeve (1) by three connecting cloths (15).
3. The antifreeze device for pear tree trunks according to claim 1, characterized in that: The flame retardant layer (31) is made of aramid fiber, the heat insulation layer (32) is made of polyester fiber, the heat insulation layer (33) is made of heat insulation cotton, and the mildew-proof layer (34) is made of kapok fiber.
Citation Information
Patent Citations
Wind shielding and anti-freezing device for nursery stock planting
CN218680620U