Chinese chestnut fresh-keeping packaging device
By designing a chestnut preservation packaging device, and utilizing manual operation and a limiting mechanism, convenient preservation packaging and transportation of chestnuts have been achieved, solving the problem that traditional methods cannot solve, and ensuring preservation effect and airtightness.
Patent Information
- Application Number
- CN202520361361.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-03-04
AI Technical Summary
Existing chestnut preservation packaging devices are not convenient for transportation, and traditional methods such as sand storage and freezing can only be used for storage in specific locations, which cannot meet transportation needs.
A chestnut preservation packaging device was designed. By manually operating the lever and clamping plate, and by rotating the support rod, connecting shaft and crank handle, the preservation film is evenly wrapped and fixed. Combined with the cutting of the hot melt knife, a preservation box that is easy to transport is formed.
It achieves convenient and fresh-keeping packaging for chestnuts, ensuring freshness during transportation, adapting to the needs of different sized cardboard boxes, and preventing the plastic wrap from sliding through a limiting mechanism to ensure the tightness and airtightness of the packaging.
Smart Images

Figure CN223778629U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural product preservation technology, and in particular to a chestnut preservation packaging device. Background Technology
[0002] Chestnut, also known as Chinese chestnut, is the fruit of a deciduous tree belonging to the genus Castanopsis in the family Fagaceae. Chestnuts are usually oblate or spherical in shape, varying in size, with a diameter generally between two and five centimeters. Their shells are hard, mostly dark brown or black in color, with many irregular bumps and hairs on the surface. The flesh of chestnuts is pale yellow or white, with a delicate texture, a sweet and delicious taste, and is rich in starch, protein, fat, vitamins, and minerals.
[0003] Chestnuts are rich in nutrients and have the effects of strengthening the spleen and stomach, replenishing qi and blood, strengthening muscles and bones, and anti-aging. They also help reduce the risk of cardiovascular disease. Moderate consumption is beneficial to health, so they are widely loved by people. However, chestnuts are not easy to store and are prone to mold and spoilage, so a chestnut preservation packaging device is needed.
[0004] The existing chestnut preservation packaging device has the following shortcomings:
[0005] Currently, there are no preservation packaging devices specifically designed for chestnuts on the market. In chestnut production areas, traditional sand storage and freezing methods are used, but these two preservation methods can only be used for centralized storage in specific locations, which is inconvenient for transportation.
[0006] Therefore, we propose a chestnut preservation packaging device to solve the problems mentioned above. Utility Model Content
[0007] When packaging chestnuts for preservation, the first step is to place the processed chestnuts into a special cardboard box. Then, manually and slowly turn the lever. The rotation of the lever, which is fixed to the outer shell, drives the connecting shaft, causing the fixing plate and the inner clamping plate to move towards the center of the cardboard box. At this point, the cardboard box is placed between the two clamping plates. Continue operating the lever until the clamping plates firmly fix the cardboard box. Then, pull out the plastic wrap from the outer shell and let it adhere to the cardboard box. Shake the lever again. Due to the rotation of the lever and the support block, the clamping plates and the cardboard box rotate synchronously. As the cardboard box rotates, the plastic wrap is pulled to wrap the chestnuts evenly. After completion, use a hot melt knife to cut the plastic wrap and fix the joint. The packaged chestnuts are then stored in the preservation cardboard box, which is convenient for transportation and solves the problems mentioned in the background technology.
[0008] To achieve the above objectives, the present invention adopts the following technical solution: a chestnut preservation packaging device, comprising a shell, a support rod fixedly connected to the outer side of the shell, a handle rotatably connected to the outer side of the support rod, a connecting shaft rotatably connected to the bottom of the handle, a first fixed plate fixedly connected to the connecting shaft, a clamping plate rotatably connected to the inner side of the first fixed plate, two limiting rods slidably connected to the bottom of the first fixed plate, a second fixed plate fixedly connected to the other end of the two limiting rods, a clamping plate rotatably connected to the inner side of the second fixed plate, a rocking handle rotatably connected to the inner side of the second fixed plate, the rocking handle passing through the second fixed plate and fixedly connected to the clamping plate, and a limiting mechanism provided inside the shell.
[0009] Preferably, it includes a first bracket, which is fixedly connected inside the housing. The top of the first bracket is rotatably connected to a rotating shaft, and another first bracket is provided at the other end of the rotating shaft. A sliding groove is provided on the inner side of this first bracket, and a sliding bolt is slidably connected to the inner side of the sliding groove. A moving block is slidably connected to the inner side of the housing, and a limit hook is rotatably connected to the inner side of the moving block.
[0010] Preferably, the bottom of the outer casing is fixedly connected to two second brackets, and the top of one of the brackets is rotatably connected to a connecting rod.
[0011] Preferably, a rotating rod is rotatably connected to the outer side of the connecting rod, and a rotating stake is fixedly connected to the top of the bracket on the other side, with a rotating block rotatably connected to the outer side of the rotating stake.
[0012] Preferably, a threaded bolt is provided on the inner side of the rotating block, and the threaded bolt is threadedly connected to the rotating block, and a base rod is fixedly connected to the inner side of the two second brackets.
[0013] Preferably, two sliding shafts are fixedly connected to the front side of the outer casing, and a hot melt knife is slidably connected to the outer side of the two sliding shafts. A support block is fixedly connected to the outer side of the outer casing, and the rocking handle passes through the support block and is rotatably connected to it.
[0014] Preferably, the outer side of the support rod is fixedly connected to an anti-disengagement bolt, and the outer side of the crank handle is rotatably connected to two bearings, with a handle sleeve rotatably connected to the outer side of the two bearings.
[0015] Preferably, a cover is rotatably connected to the top of the outer casing, a handle is fixedly connected to the top of the cover, and an anti-slip block is fixedly connected to the top of the sliding shaft.
[0016] Preferably, a sliding groove is provided on the inner side of the outer shell, and the sliding groove is slidably connected to the moving block.
[0017] Preferably, a rotating ring is fixedly connected to the outer side of the rotating pile, and a rotating groove is opened in the inner hole of the rotating block, and the rotating groove is rotatably connected to the rotating ring.
[0018] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0019] 1. In this utility model, when chestnuts need to be packaged for preservation, first, the cleaned chestnuts are placed in a specific cardboard box. Then, the handle is manually turned. Because the outer shell is fixed with a support rod, the support rod and the handle rotate. The support rod can limit the handle and ensure that the handle can rotate stably. The rotation between the rod and the support rod drives the connecting shaft, thereby pushing the fixed plate on the connecting shaft to move inward. The clamping plate inside the fixed plate also moves inward. At this time, the cardboard box containing chestnuts is placed between the two clamping plates. The rod is continued to be operated until the two clamping plates move inward. The clamping plate firmly holds the cardboard box. Then, the cling film inside the outer shell is pulled out and attached to the surface of the cardboard box. Then, the crank handle is turned. The crank handle and the support block rotate, and the crank handle is limited and stabilized by the block. This rotation drives the clamping plate on the block to rotate. The rotation of the clamping plate causes the cardboard box containing chestnuts to rotate. At the same time, the cling film on the cardboard box is pulled and rotates to wrap around the outside of the cardboard box. After wrapping, the hot melt knife is pulled to cut the cling film and fix the joint to the cardboard box. At this time, the packaged chestnuts are stored in the preservation cardboard box for easy transportation.
[0020] 2. In this utility model, when it is necessary to adapt to different sized cardboard boxes, the corresponding size of the cling film also needs to be changed. At this time, manually lift the limiting hook and move the sliding bolt along the sliding groove to release the limiting of the rotating shaft. After the rotating shaft is no longer limited, lift it and put the cling film of the appropriate size on the rotating shaft. Then put the rotating shaft back in its original position and then put the sliding bolt back in its original position to ensure that it is engaged with the rotating shaft and prevent it from shifting. If the size of the cling film changes, adjust the position of the two moving blocks as needed so that they can correctly limit the cling film. After adjustment, put the limiting hook back in its original position and place it on the rotating shaft to fix the cling film and prevent it from sliding left and right on the rotating shaft during use. This ensures that the box containing chestnuts is accurately aligned with the cling film and that there are no gaps after wrapping with cling film, thus not affecting the preservation effect. Attached Figure Description
[0021] Figure 1 This utility model provides a perspective view of the main structure of a chestnut preservation packaging device.
[0022] Figure 2 This utility model provides a three-dimensional structural breakdown view of a chestnut preservation packaging device.
[0023] Figure 3 This utility model provides a partial structural perspective view of a chestnut preservation packaging device.
[0024] Figure 4 This utility model provides a three-dimensional structural breakdown of a limiting mechanism in a chestnut preservation packaging device.
[0025] Figure 5 This utility model provides a front view of a chestnut preservation packaging device;
[0026] Figure 6 A side view of a chestnut preservation packaging device is provided for this utility model.
[0027] Legend: 1. Outer shell; 2. Limiting mechanism; 201. First bracket; 202. Rotating shaft; 203. Limiting hook; 204. Moving block; 205. Sliding groove; 206. Sliding bolt; 3. Second bracket; 4. Base rod; 5. Connecting rod; 6. Rotating rod; 7. Rotating post; 8. Rotating block; 9. Threaded bolt; 10. Sliding shaft; 11. Hot melt knife; 12. Support rod; 13. Handle; 14. Connecting shaft; 15. First fixed plate; 16. Clamping plate; 17. Limiting rod; 18. Crank handle; 19. Bearing; 20. Handle sleeve; 21. Cover; 22. Handle; 23. Second fixed plate; 24. Support block. Detailed Implementation
[0028] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention can also be implemented in other ways than those described herein, and therefore the present invention is not limited to the specific embodiments disclosed in the following specification.
[0030] Example 1, as shown in the attached document Figure 1 , Figure 2 and Figure 3 As shown, a chestnut preservation packaging device includes an outer shell 1. A support rod 12 is fixedly connected to the outer side of the outer shell 1. A handle 13 is rotatably connected to the outer side of the support rod 12. A connecting shaft 14 is rotatably connected to the bottom of the handle 13. A first fixed plate 15 is fixedly connected to the connecting shaft 14. A clamping plate 16 is rotatably connected to the inner side of the first fixed plate 15. Two limiting rods 17 are slidably connected to the bottom of the first fixed plate 15. A second fixed plate 23 is fixedly connected to the other end of the two limiting rods 17. The clamping plate 16 is rotatably connected to the inner side of the second fixed plate 23. A rocking handle 18 is rotatably connected to the inner side of the second fixed plate 23. The rocking handle 18 passes through the second fixed plate 23 and is fixedly connected to the clamping plate 16. A limiting mechanism 2 is provided inside the outer shell 1.
[0031] The effect achieved by the entire embodiment 1 is as follows: when the lever 13 is manually turned, the lever 13 rotates with the support rod 12, which drives the connecting shaft 14 to push inward. The connecting shaft 14 drives the fixed plate on it to move inward. The clamping plate 16 on the inner side of the fixed plate also moves inward. The cardboard box containing chestnuts is placed between the two clamping plates 16. The lever 13 is turned until the two clamping plates 16 clamp the cardboard box. The plastic wrap is pulled out and attached to the surface of the cardboard box. The rocker handle 18 rotates with the support block 24. It is limited by the block and rotates stably, driving the clamping plate 16 on it to rotate. The rotation of the clamping plate 16 drives the cardboard box containing chestnuts to rotate. When the cardboard box rotates, the plastic wrap is pulled and rotated to wrap the plastic wrap around the outside of the cardboard box.
[0032] Example 2, as Figure 2 and Figure 4 As shown, it includes a first bracket 201, which is fixedly connected to the inside of the outer shell 1. The top of the first bracket 201 is rotatably connected to a rotating shaft 202. Another first bracket 201 is provided at the other end of the rotating shaft 202. A sliding groove 205 is provided on the inner side of this first bracket 201. A sliding bolt 206 is slidably connected to the inner side of the sliding groove 205. A moving block 204 is slidably connected to the inner side of the outer shell 1. A limit hook 203 is rotatably connected to the inner side of the moving block 204.
[0033] The effect achieved by the entire embodiment 2 is as follows: the limiting hook 203 is lifted manually, the sliding bolt 206 is moved to slide along the sliding groove 205 to release the limitation between it and the rotating shaft 202, the required size of the plastic wrap is put on the rotating shaft 202 and then the rotating shaft 202 is returned to its position, when the size of the plastic wrap changes, the two moving blocks 204 are moved as needed to limit the plastic wrap.
[0034] Example 3, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the bottom of the outer casing 1 is fixedly connected to two second brackets 3. The top of one bracket is rotatably connected to a connecting rod 5, and the outside of the connecting rod 5 is rotatably connected to a rotating rod 6. The top of the other bracket is fixedly connected to a rotating post 7, and the outside of the rotating post 7 is rotatably connected to a rotating block 8. A threaded bolt 9 is provided on the inside of the rotating block 8, and the threaded bolt 9 is threadedly connected to the rotating block 8. The inside of the two second brackets 3 is fixedly connected to a bottom rod 4.
[0035] The effect achieved by the entire embodiment 3 is as follows: the plastic wrap is placed on the bottom rod 4, and then the rotating rod 6 is moved to be parallel to the bottom rod 4 by rotating the second bracket 3. At this time, the rotating block 8 is rotated so that the rotating block 8 is placed on the rotating rod 6. At this time, the threaded bolt 9 is turned downward until it contacts the rotating rod 6 and engages with it. When the plastic wrap is pulled out, it can ensure that the plastic wrap is in a taut state, so that the cardboard box containing chestnuts is wrapped more tightly. The rotation between the connecting rod 5 and the rotating rod 6 can reduce the friction between the plastic wrap and the rotating rod 6, which may damage the plastic wrap.
[0036] Example 4, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, two sliding shafts 10 are fixedly connected to the front side of the outer casing 1. A hot melt knife 11 is slidably connected to the outer side of the two sliding shafts 10. A support block 24 is fixedly connected to the outer side of the outer casing 1. A rocking handle 18 passes through the support block 24 and is rotatably connected to it. An anti-disengagement bolt is fixedly connected to the outer side of the support rod 12. Two bearings 19 are rotatably connected to the outer side of the rocking handle 18. A handle sleeve 20 is rotatably connected to the outer side of the two bearings 19. A cover 21 is rotatably connected to the top of the outer casing 1. A handle 22 is fixedly connected to the top of the cover 21. An anti-slip block is fixedly connected to the top of the sliding shaft 10. A sliding groove is opened on the inner side of the outer casing 1. The sliding groove is slidably connected to the moving block 204. A rotating ring is fixedly connected to the outer side of the rotating post 7. A rotating groove is opened in the inner hole of the rotating block 8. The rotating groove is rotatably connected to the rotating ring.
[0037] The overall effect of embodiment 4 is as follows: the hot melt knife 11 can fix the plastic wrap to the cardboard box while cutting the plastic wrap, preventing the plastic wrap from detaching from the cardboard box and leaking air. The anti-detachment buckle plays a limiting role, preventing the handle 13 from slipping off during operation. The rotation between the handle sleeve 20 and the bearing 19 facilitates the rotation of the rocker handle 18. The sliding groove opened on the inner side of the outer shell 1 allows the moving block 204 to slide. The rotating ring on the rotating post 7 can limit the rotating block 8 and prevent it from slipping off.
[0038] The working principle of the entire device is as follows: When chestnuts need to be packaged for preservation, first, the cleaned chestnuts are placed in a specific cardboard box. Then, the lever 13 is manually turned. The lever 13, through rotation with the support rod 12, drives the connecting shaft 14 inward. The connecting shaft 14 then moves the fixed plate on it inward, and the clamping plate 16 inside the fixed plate also moves inward. At this time, the cardboard box containing the chestnuts is placed between the two clamping plates 16. The lever 13 is turned again until the two clamping plates 16 are... The cardboard box is securely clamped. At this time, the cling film inside the outer shell 1 is pulled out and attached to the surface of the cardboard box. Then, the crank handle 18 is shaken. The crank handle 18 and the support block 24 rotate, and the crank handle 18 is limited and rotates stably, driving the clamping plate 16 on it to rotate. At this time, the rotation of the clamping plate 16 drives the cardboard box containing chestnuts to rotate. The cling film is attached to the cardboard box. When the cardboard box rotates, the cling film is pulled and rotated to wrap the cling film around the outside of the cardboard box. When the wrapping is completed, the hot melt knife 11 is pulled to cut the cling film and fix the joint to the cardboard box.
[0039] When the size of a specific cardboard box changes, and a corresponding size of cling film needs to be replaced, manually lift the limiting hook 203 and move the sliding bolt 206 to slide along the sliding groove 205 to release the limiting relationship between it and the rotating shaft 202. After the rotating shaft 202 is no longer limited, lift the rotating shaft 202, put the cling film of the required size on the rotating shaft 202, and then return the rotating shaft 202 to its original position. Then, return the sliding bolt 206 to its original position to lock the rotating shaft 202 in place and prevent it from shifting. When the size of the cling film changes, move the two moving blocks 204 as needed so that the moving blocks 204 can limit the cling film. After the moving blocks 204 are in the correct position, return the limiting hook 203 to its original position on the rotating shaft 202 to limit the cling film and prevent it from sliding left and right on the rotating shaft 202 during use.
[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A chestnut preservation packaging device, characterized in that: The enclosure includes a shell (1), a support rod (12) is fixedly connected to the outer side of the shell (1), a handle (13) is rotatably connected to the outer side of the support rod (12), a connecting shaft (14) is rotatably connected to the bottom of the handle (13), a first fixed plate (15) is fixedly connected to the connecting shaft (14), a clamping plate (16) is rotatably connected to the inner side of the first fixed plate (15), two limiting rods (17) are slidably connected to the bottom of the first fixed plate (15), a second fixed plate (23) is fixedly connected to the other end of the two limiting rods (17), a clamping plate (16) is rotatably connected to the inner side of the second fixed plate (23), a rocking handle (18) is rotatably connected to the inner side of the second fixed plate (23), the rocking handle (18) passes through the second fixed plate (23) and is fixedly connected to the clamping plate (16), and a limiting mechanism (2) is provided inside the shell (1).
2. The chestnut preservation packaging device according to claim 1, characterized in that: Includes a first bracket (201), which is fixedly connected inside the outer shell (1). The top of the first bracket (201) is rotatably connected to a rotating shaft (202). Another first bracket (201) is provided at the other end of the rotating shaft (202). A sliding groove (205) is provided on the inner side of this first bracket (201). A sliding bolt (206) is slidably connected to the inner side of the sliding groove (205). A moving block (204) is slidably connected to the inner side of the outer shell (1). A limit hook (203) is rotatably connected to the inner side of the moving block (204).
3. The chestnut preservation packaging device according to claim 1, characterized in that: The bottom of the outer shell (1) is fixedly connected to two second brackets (3), and the top of one side of the bracket is rotatably connected to a connecting rod (5).
4. The chestnut preservation packaging device according to claim 3, characterized in that: A rotating rod (6) is rotatably connected to the outside of the connecting rod (5), and a rotating pile (7) is fixedly connected to the top of the second bracket (3) on the other side. A rotating block (8) is rotatably connected to the outside of the rotating pile (7).
5. A chestnut preservation packaging device according to claim 4, characterized in that: The inner side of the rotating block (8) is provided with a threaded bolt (9), which is threadedly connected to the rotating block (8). The inner sides of the two second brackets (3) are fixedly connected with a base rod (4).
6. The chestnut preservation packaging device according to claim 1, characterized in that: Two sliding shafts (10) are fixedly connected to the front side of the outer shell (1), and a hot melt knife (11) is slidably connected to the outer side of the two sliding shafts (10). A support block (24) is fixedly connected to the outer side of the outer shell (1), and the rocking handle (18) passes through the support block (24) and is rotatably connected to it.
7. The chestnut preservation packaging device according to claim 1, characterized in that: The outer side of the support rod (12) is fixedly connected with an anti-disengagement bolt, and the outer side of the rocking handle (18) is rotatably connected with two bearings (19), and the outer side of the two bearings (19) is rotatably connected with a handle sleeve (20).
8. A chestnut preservation packaging device according to claim 6, characterized in that: The top of the outer shell (1) is rotatably connected to a cover (21), the top of the cover (21) is fixedly connected to a handle (22), and the top of the sliding shaft (10) is fixedly connected to an anti-slip block.
9. A chestnut preservation packaging device according to claim 2, characterized in that: The inner side of the outer shell (1) is provided with a sliding groove, which is slidably connected to the moving block (204).
10. A chestnut preservation packaging device according to claim 4, characterized in that: The rotating pile (7) is fixedly connected to a rotating ring on its outer side, and the rotating block (8) has a rotating groove in its inner hole, which is rotatably connected to the rotating ring.