Plum fresh-keeping storage device
By designing a plum preservation and storage device, a mechanical structure is used to achieve rapid film covering, which solves the problem of low plum preservation and storage efficiency, improves storage efficiency and fruit quality, and reduces labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-04-03
AI Technical Summary
Existing technologies for plum preservation and storage are inefficient and have poor results, especially during long-distance transportation and long-term storage, resulting in significant losses. Furthermore, traditional film covering methods require intensive manual labor and are inefficient.
A plum preservation and storage device is designed, including components such as side support frame, cross frame, frame, hanging rod, preservation film roll, inner support plate and bearing frame. It achieves fast and precise film covering through mechanical structure linkage, adopts double-layer design and coordinated operation of operating components, simplifies manual operation and improves efficiency.
It enables rapid and accurate covering with plastic wrap, significantly extending the shelf life of plums, reducing labor costs, improving industrial production efficiency, and ensuring fruit integrity and quality.
Smart Images

Figure CN224075819U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of plum preservation technology, specifically to a plum preservation and storage device. Background Technology
[0002] In the current booming fruit industry, plums are one of the most popular fruits among consumers. Common simple packaging and preservation methods, such as using only cardboard boxes or plastic baskets to store plums, are almost unable to effectively control key factors such as temperature, humidity, and gas composition in the storage environment. As a result, plums will dry out and rot in a short period of time due to moisture loss and increased respiration, which greatly shortens the shelf life and causes a lot of fruit loss. The losses are even more severe during long-distance transportation and long-term storage.
[0003] When preserving plums, they are usually covered with plastic wrap to prevent moisture loss and external interference, thus maximizing freshness and preventing quality issues during transportation. However, this covering method typically involves manually pulling the plastic wrap to cover the plums before cutting them. This process requires strenuous work, is not conducive to long hours of labor, and is inefficient with inconsistent wrapping quality, ultimately affecting overall storage efficiency and effectiveness.
[0004] Therefore, there is a need for a device that allows workers to quickly and easily apply a preservation film, thereby improving the efficiency and effectiveness of plum preservation and storage. Summary of the Invention
[0005] In response to the aforementioned technical problems, this application solves the problems of low efficiency and poor effect in the preservation and storage of plums in the prior art.
[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: a plum preservation and storage device, including a side support frame, a crossbar fixedly mounted on the side support frame, a frame fixedly mounted on the crossbar, a hanging rod slidably mounted on the frame, an installation plate fixedly mounted on the side support frame, a roll of preservation film fixedly mounted on the installation plate, an inner support plate fixedly mounted on the hanging rod, a bearing frame slidably mounted on the inner support plate, and a stop bar mounted on the bearing frame.
[0007] To better realize this application, the frame is further provided with two inner control rods slidably arranged, each inner control rod having a short connecting rod slidably arranged on it, and a long connecting rod rotatably arranged on the short connecting rod. Two support blocks are fixedly arranged on the frame, and the end of the long connecting rod away from the short connecting rod is rotatably connected to the support block.
[0008] To better realize this application, a limit frame is further fixedly provided on the inner control rod, and the short connecting rod slides within the space restricted by the limit frame.
[0009] To better realize this application, the frame is further provided with a sliding lower shaft, a limit rod is fixedly provided on the sliding lower shaft, a lower spring is sleeved on the sliding lower shaft, the lower spring is fixedly connected to the limit rod and the frame, and a one-way tooth is fixedly provided on the limit rod.
[0010] To better realize this application, further, an outer control rod and an upper sliding rod are slidably arranged on the inner support plate, a cutting tool is fixedly arranged on the outer control rod, the upper sliding rod is fixedly connected to the outer control rod, an upper spring is sleeved on the upper sliding rod, and the upper spring is fixedly connected to the inner support plate and the outer control rod.
[0011] The technical solution provided in this application has the following advantages compared with the prior art:
[0012] 1. This application achieves precise film covering of plum crates through the coordinated operation of components such as hanging rods, plastic wrap rolls, and support frames. During storage, it can quickly and accurately wrap each crate of plums with plastic wrap, effectively blocking direct contact between outside air, dust, and the fruit. This greatly slows down the respiration and moisture evaporation rate of the plums, significantly extends the shelf life, reduces the risk of fruit drying out and rotting, and ensures that the plums remain fresh and juicy after long-term storage, maintaining good taste and appearance quality.
[0013] 2. This application adopts a double-layer design, equipped with corresponding support frames and operating components, making full use of vertical space. Two workers can operate independently on both sides of the device at the same time without interfering with each other. The plum frames are placed on the upper and lower support frames respectively, and the processes of film covering, lifting, and cutting are completed simultaneously, realizing efficient assembly line operation.
[0014] 3. Compared with the traditional single-station, single-layer storage mode, this application greatly increases the amount of plums processed per unit time, and is especially suitable for batch operation scenarios such as large-scale plantations and fruit distribution centers, effectively improving industrial production efficiency and reducing labor costs.
[0015] 4. The stop bar designed on the support frame of this application can accurately position the plum frame after it is pushed in, firmly limiting its back-and-forth swaying and preventing damage to the fruit from collisions and displacements during the process. At the same time, the inner support plate provides stable support for the support frame, ensuring that the plum frame remains stable during dynamic operations such as covering and lifting, protecting the integrity of the fruit in all aspects, reducing the defect rate, and improving the product qualification rate.
[0016] 5. This application utilizes a series of interconnected mechanical structures, including an internal control rod, long connecting rod, short connecting rod, sliding shaft, and limit rod. Operators can achieve precise lifting and lowering of the support frame simply by manually operating the internal control rod, making operation convenient and intuitive. Furthermore, the one-way locking mechanism formed by the sliding shaft and limit rod automatically locks after the support frame is raised to its position, preventing accidental slippage. When resetting is required, pressing the limit rod easily releases the lock, allowing gravity and spring force to quickly reset all components, preparing for the next operation. The entire process is efficient and smooth, reducing operational difficulty and labor intensity.
[0017] 6. The external control rod and cutting blade set on the inner support plate of this application, together with the spring, can accurately cut the plastic wrap at the moment when the plastic wrap is covered and tightly attached to the plum frame. The cut is neat and clean, which not only avoids wasting plastic wrap material, but also ensures the covering effect. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this application;
[0019] Figure 2 This is a schematic diagram of the structure of the cling film roll in this application;
[0020] Figure 3 This is a schematic diagram of the cutting tool of this application;
[0021] Figure 4 for Figure 3 Enlarged view of the local structure at point A;
[0022] In the diagram: 101-Side support frame; 102-Horizontal frame; 103-Cling film roll; 104-Mounting plate; 105-Frame; 106-Hanging rod; 107-Bearing frame; 108-Stop bar; 109-Inner support plate; 110-Inner control rod; 111-Limiting frame; 112-Short connecting rod; 113-Long connecting rod; 114-Support block; 115-Limiting rod; 116-Sliding shaft; 117-Lower spring; 118-Outer control rod; 119-Cut blade; 120-Upper sliding rod; 121-Upper spring. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0024] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0025] like Figures 1 to 4 As shown, a plum preservation and storage device includes a side support frame 101, a crossbar 102 fixedly mounted on the side support frame 101, a frame 105 fixedly mounted on the crossbar 102, a hanging rod 106 slidably mounted on the frame 105, an mounting plate 104 fixedly mounted on the side support frame 101, a plastic wrap roll 103 fixedly mounted on the mounting plate 104, an inner support plate 109 fixedly mounted on the hanging rod 106, a carrier frame 107 slidably mounted on the inner support plate 109, and a stop bar 108 mounted on the carrier frame 107.
[0026] Specifically, when it is necessary to preserve the plums in a crate, the crate is placed on the support frame 107 and pushed in so that the crate is fully inside the support frame 107. At this time, the crate is blocked by the two stops 108 on the support frame 107, limiting its back-and-forth swaying. Then, the hanging rod 106 is moved. In the initial state, the hanging rod 106 is on the side of the frame 105 near the plastic wrap roll 103. When moving, the hanging rod 106 slides along the shape of the outer wall of the frame 105. The hanging rod 106 first contacts the film on the plastic wrap roll 103 and then pulls the film on the plastic wrap roll 103 through the protrusion on the hanging rod 106, thereby causing the plastic wrap roll 103 to rotate on the mounting plate 104, so that the film on the plastic wrap roll 103 can be pulled out.
[0027] The pulled-out film follows the movement of the hanging rod 106, covering the frame on the support frame 107. When the hanging rod 106 moves to the left side of the frame 105, it stops moving. Then, the support frame 107 slides upwards on the inner support plate 109, causing the frame on the support frame 107 to contact the film of the cling film roll 103 tightly, thus covering the frame and ensuring subsequent preservation. When the frame needs to be removed, the cutter on the inner support plate 109 cuts the cling film roll 103. Before cutting the film of 03, the stop bar 108 needs to be controlled to continue moving on the frame 105. As the moving distance of the hanging bar 106 increases, the hanging bar 106 disengages from the film of the plastic wrap roll 103 and moves back to the area below the film pulled out of the plastic wrap roll 103 through the trajectory of the outer wall of the frame 105, and contacts the film. The hanging bar 106 hooks the film, and after cutting, the hanging bar 106 can continue to drive the film of the plastic wrap roll 103 body to move for the next film covering.
[0028] In use, two workers are required to complete the task. The two workers are positioned on the outside of the two frames 105 respectively. They place the frames onto the support frame 107 from their respective directions and push them in. One worker places their head on the upper support frame 107 and the other on the lower support frame 107, without interfering with each other. After placement, the two workers jointly control the two hanging rods 106 to slide on their respective frames 105, thereby pulling the two plastic wrap rolls 103. They also jointly control the support frame 107 to move upward to achieve film covering. After film covering, the frames are removed. To remove them, the worker only needs to control the end of the frame closest to them to lift it above the stop bar 108, and then pull the frame out of the support frame 107 to remove the frames. This process is repeated to achieve assembly line operation and improve work efficiency.
[0029] like Figure 2 and Figure 3 As shown, two inner control rods 110 are slidably arranged on the frame 105, and a short connecting rod 112 is slidably arranged on each inner control rod 110. A long connecting rod 113 is rotatably arranged on the short connecting rod 112. Two support blocks 114 are fixedly arranged on the frame 105. The end of the long connecting rod 113 away from the short connecting rod 112 is rotatably connected to the support block 114.
[0030] A limit frame 111 is fixedly installed on the inner control rod 110, and the short connecting rod 112 slides within the space restricted by the limit frame 111.
[0031] Specifically, when it is necessary to control the upward movement of the support frame 107, the operator manually controls the inner control rod 110 on one side to slide on the frame 105. The inner control rod 110 pushes the left end of the long connecting rod 113 through the short connecting rod 112, causing the right end of the long connecting rod 113 to rotate on the support block 114, thereby lifting the left end of the long connecting rod 113. The left end of the long connecting rod 113 is provided with a protrusion. By pushing the lower end of the support frame 107 through the protrusion, the support frame 107 slides upward on the inner support plate 109, thereby lifting.
[0032] like Figure 2 and Figure 3 As shown, a sliding shaft 116 is slidably arranged on the frame 105, a limit rod 115 is fixedly arranged on the sliding shaft 116, a lower spring 117 is sleeved on the sliding shaft 116, the lower spring 117 is fixedly connected to the limit rod 115 and the frame 105, and a one-way tooth is fixedly arranged on the limit rod 115.
[0033] Specifically, when the inner control rod 110 moves toward the support block 114, the lower end of the inner control rod 110 slides on the one-way teeth on the limiting rod 115. Because the direction of the one-way teeth on the limiting rod 115 is inclined toward the support block 114, the inner control rod 110 pushes the one-way teeth of the limiting rod 115 when it approaches the support block 114. This causes the limiting rod 115 to push the sliding shaft 116 to slide downward on the frame 105 and compress the lower spring 117 on the sliding shaft 116. When the inner control rod 110 moves into the gap between the one-way teeth of the limiting rod 115, the limiting rod 115 resets under the action of the lower spring 117, thus restricting the inner control rod 110 and preventing accidental movement when it is not actively driven by an external force. When the film contacts the frame and the support frame 107 needs to be moved downward and removed from the frame, press the limit rod 115 to make the sliding shaft 116 slide downward and compress the lower spring 117, so that the one-way tooth disengages from the inner control rod 110. Under the action of gravity, the support frame 107 returns to its original position and pushes the left end of the long connecting rod 113 downward, so that the long connecting rod 113 and the inner control rod 110 return to their original positions.
[0034] like Figure 1 and Figure 3 As shown, an outer control rod 118 and an upper slide rod 120 are slidably disposed on the inner support plate 109. A cutting tool 119 is fixedly disposed on the outer control rod 118. The upper slide rod 120 is fixedly connected to the outer control rod 118. An upper spring 121 is sleeved on the upper slide rod 120. The upper spring 121 is fixedly connected to the inner support plate 109 and the outer control rod 118.
[0035] Specifically, after the support frame 107 is raised and the plastic wrap roll 103 is in close contact with the frame, the operator controls the outer control rod 118 to move downwards on the inner support plate 109. This causes the outer control rod 118 to slide the upper sliding rod 120 on the inner support plate 109, stretching the upper spring 121. The cutting blade 119 on the outer control rod 118 then cuts the plastic wrap roll 103, and the upper spring 121 returns it to its original position. During the cutting process, the upper spring 121 also pulls on the film on the frame, stretching it and further stabilizing the contact between the film and the frame. When the upper spring 119 returns to its original position, the film contracts, causing it to adhere tightly to the frame, thus preventing detachment.
[0036] The upper outer control rod 118 and other parts cut the film of the lower plastic wrap roll 103.
[0037] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A plum fresh-keeping storage device, comprising a side support frame (101), a cross frame (102) is fixedly arranged on the side support frame (101), and a frame (105) is fixedly arranged on the cross frame (102), characterized in that: The frame (105) is slidably provided with a hanging rod (106), the side support frame (101) is fixedly provided with a mounting plate (104), the mounting plate (104) is fixedly provided with a preservative film roll (103), the hanging rod (106) is fixedly provided with an inner support plate (109), the inner support plate (109) is slidably provided with a bearing frame (107), and the bearing frame (107) is provided with a stop rod (108).
2. The plum fresh-keeping storage device according to claim 1, characterized in that: The frame (105) is slidably provided with two inner control rods (110), each of which is slidably provided with a short connecting rod (112), the short connecting rod (112) is rotatably provided with a long connecting rod (113), the frame (105) is fixedly provided with two support blocks (114), and the long connecting rod (113) is rotatably connected with the support block (114) at an end away from the short connecting rod (112).
3. The plum fresh-keeping storage device according to claim 2, characterized in that: The inner control rod (110) is fixedly provided with a limiting frame (111), and the short connecting rod (112) slides in a space limited by the limiting frame (111).
4. The plum fresh-keeping storage device according to claim 1, characterized in that: The frame (105) is slidably provided with a lower sliding shaft (116), the lower sliding shaft (116) is fixedly provided with a limiting rod (115), the lower sliding shaft (116) is sleeved with a lower spring (117), the lower spring (117) is fixedly connected with the limiting rod (115) and the frame (105), and the limiting rod (115) is fixedly provided with a one-way tooth.
5. The plum fresh-keeping storage device according to claim 1, characterized in that: The inner support plate (109) is slidably provided with an outer control rod (118) and an upper sliding rod (120), the outer control rod (118) is fixedly provided with a cutting tool (119), the upper sliding rod (120) is fixedly connected with the outer control rod (118), the upper sliding rod (120) is sleeved with an upper spring (121), and the upper spring (121) is fixedly connected with the inner support plate (109) and the outer control rod (118).