A vegetable cold-chain preservation device
By employing multiple blocking rods and a collection chamber design in the vegetable cold chain preservation device, combined with a cleaning mechanism, the problem of impurity blockage in the circulation system is solved, and the automatic processing of impurities is achieved, ensuring stable system operation and preservation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GANSU HUAMANXI AGRICULTURAL SCIENCE & TECHNOLOGY SERVICE CO LTD
- Filing Date
- 2026-03-27
- Publication Date
- 2026-06-02
AI Technical Summary
The circulation system of existing vegetable cold chain preservation devices is prone to clogging of pipes due to impurities, resulting in low water resource utilization and affecting the quality of preservation.
The design employs a plate-shaped impurity blocking structure composed of multiple blocking rods and a sedimentation chamber for impurities. Combined with a cleaning mechanism, this forms a three-stage impurity treatment system, enabling automated scraping and pushing of impurities, thus replacing the traditional filter screen filtration method.
It effectively prevents impurities from clogging the pipes, ensures the long-term stable operation of the circulating water system, adapts to the vegetable preservation needs of impurities such as residual leaves and mud, extends the preservation period, and reduces human intervention.
Smart Images
Figure CN122129852A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vegetable cold chain preservation equipment technology, and in particular to a vegetable cold chain preservation device. Background Technology
[0002] After harvesting, vegetables are prone to wilting, rotting, and spoilage due to their own respiration and the influence of the external environment. Cold chain preservation is the core means to extend the shelf life of vegetables.
[0003] Spray-type cold chain preservation devices are widely used in on-site harvesting and preservation scenarios due to their wide adaptability and ease of use. However, existing spray-type devices and other types of devices have significant defects in their filtration structures. During harvesting, vegetables easily produce residual leaves, peelings, and some soil. During preservation, the circulating water used for cooling is sprayed onto the surface of the vegetables, carrying away these impurities and returning with the circulating water. Traditional circulating devices typically use a single filter screen or sieve. After prolonged use, mixed impurities composed of broken vegetable leaves and dirt easily become embedded in the filter pores. These impurities are difficult to clean automatically, leading to filter clogging, which in turn causes blockage of pipes and spray heads. Ultimately, this results in problems such as the inability to properly transport circulating water and interruption of the preservation function. Furthermore, the decay of impurities breeds bacteria, contaminating the circulating water and affecting the quality of the preserved vegetables. Therefore, how to provide a vegetable cold chain preservation device is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention
[0004] One objective of this invention is to provide a vegetable cold chain preservation device that solves the technical problems of traditional vegetable cold chain preservation circulation systems being prone to pipe blockage due to impurities and having low water resource utilization.
[0005] This invention provides a vegetable cold chain preservation device, including a storage box and a top cover. The storage box and the top cover are connected by a hinge. A spraying assembly is provided on the inner side of the top cover along its own length. A recycling mechanism is provided on the inner side of the storage box. One end of the recycling mechanism is connected to a liquid conveying assembly. The outlet end of the liquid conveying assembly is connected to a cooling assembly. The cooling assembly is connected to the spraying assembly inside the top cover.
[0006] The recycling mechanism includes a water receiving box and a rectangular guide tube inserted at one corner of the water receiving box. The water receiving box is slidably set at the bottom of the storage box. A rotating rod is rotatably installed inside the rectangular guide tube. A blocking rod is rotatably installed on the outer wall of the rotating rod along the axis. Multiple blocking rods are spliced to form a plate-shaped impurity blocking structure. The blocking rod has filter holes inside. An arc-shaped plate is fixedly installed on the inner wall of the rectangular guide tube, and a collection cavity is formed on one side of the arc-shaped plate. The rotating rod is located on the axis of the collection cavity. The blocking rod is arranged radially along the collection cavity. The blocking rod is used to initially block impurities. The collection cavity is used to collect and block impurities for a secondary purpose. When the rotating rod rotates, it drives the blocking rod to scrape out the impurities inside the collection cavity. A cleaning mechanism is set in the upper half of the rectangular guide tube.
[0007] According to an embodiment of the present invention, a vegetable cold chain preservation device is provided at the bottom of the top cover and a positioning groove is provided at the top of the storage box. When the top cover is fastened to the top of the storage box, the limiting block is embedded in the positioning groove.
[0008] According to an embodiment of the present invention, a vegetable cold chain preservation device is provided inside the storage box, a support frame is provided on the inner side wall of the storage box, a support ring is sleeved on the outer wall of the guide rod, the end of the support frame is sleeved on the guide rod, and the support frame overlaps the upper surface of the support ring, and a spring is fixedly connected to the lower surface of the support ring, and the spring is fixedly connected to the storage box.
[0009] According to an embodiment of the present invention, a vegetable cold chain preservation device is provided at the end of a rectangular guide pipe. The sealing plate is fastened to the junction of the rectangular guide pipe and the water receiving box. The rectangular guide pipe is connected to a flexible hose through the sealing plate. The flexible hose is connected to a water pump in the liquid delivery assembly. The axis of the collecting cavity is lower than the axis of the flexible hose to form a height difference, which is used to allow impurities in the water flow to settle in the collecting cavity.
[0010] According to an embodiment of the present invention, a vegetable cold chain preservation device is provided with a water outlet at the top of a rectangular guide pipe, and an inclined plate is fixedly connected to the end of an arc-shaped plate, with the end of the inclined plate fixedly connected to the edge of the water outlet.
[0011] According to an embodiment of the present invention, a vegetable cold chain preservation device is provided at the junction of an inclined plate and an arc plate. The auxiliary blocking strip is arranged radially along the collection cavity, and a second inclined portion is symmetrically provided at the edge of the auxiliary blocking strip. A first inclined portion is provided at the corner of the blocking rod, and the shape of the first inclined portion is adapted to the second inclined portion.
[0012] According to an embodiment of the present invention, a vegetable cold chain preservation device has a secondary shell fixedly installed on the side of a rectangular guide tube, and a micro motor fixedly installed inside the secondary shell. One end of the rotating rod and the output end of the micro motor are both fixedly connected to a bevel gear shaft, and the bevel gears at the ends of the two bevel gear shafts mesh with each other.
[0013] According to an embodiment of the present invention, a vegetable cold chain preservation device includes a cleaning mechanism located at the end of the junction of an inclined plate and an arc plate. The cleaning mechanism includes a partition plate and a movable push plate. The partition plate is integrally formed on the inner wall of a rectangular guide tube and is flush with the lowest point of the inclined plate. The movable push plate is slidably disposed on the upper surface of the partition plate.
[0014] According to an embodiment of the present invention, a vegetable cold chain preservation device is provided with a guide ridge on the inner side wall of the bent portion of the movable push plate. The movable push plate is slidably connected to the rectangular guide tube through the guide ridge, and a receiving groove is provided at the junction of the rectangular guide tube and the movable push plate.
[0015] According to an embodiment of the present invention, a vegetable cold chain preservation device is provided on the outer wall of the bent part of the movable push plate. The strip groove is vertically arranged. A transmission wheel is rotatably installed on the inner wall of the sub-shell. The transmission wheel is connected to the bevel gear shaft at the end of the rotating rod through a chain or transmission belt. A push rod is provided at the eccentric part on one side of the transmission wheel. The push rod is slidably connected inside the strip groove.
[0016] The beneficial effects of this invention are:
[0017] 1. This invention employs a plate-shaped impurity blocking structure composed of multiple blocking rods, combined with a settling chamber to collect impurities, and a cleaning mechanism to form a three-stage impurity treatment system. This replaces the traditional filter screen filtration method. It can intercept large particles of impurities through the filter holes of the blocking rods, while allowing fine impurities to settle in the settling chamber. This achieves automated scraping and pushing out of impurities, preventing impurities from clogging the pipeline at the source, ensuring the long-term stable operation of the circulating water system, and keeping the pipeline unobstructed without manual intervention. It solves the problem of impurity clogging at its source and is suitable for the preservation needs of freshly harvested vegetables with residual leaves and mud.
[0018] 2. The movable push plate in the cleaning mechanism of this invention can accelerate the flow rate of circulating water on the inclined plate and prevent impurities from flowing back. At the same time, a spring-loaded buffer frame is configured inside the storage box, combined with the limiting and sealing structure of the top cover and the storage box, which reduces damage to vegetables from compression, reduces leakage of cold air and circulating water, and synergistically extends the freshness period of vegetables. It is suitable for use in various scenarios such as on-site picking and short-distance transportation. Attached Figure Description
[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:
[0020] Figure 1 This is a schematic diagram of the overall structure of a vegetable cold chain preservation device proposed in this invention;
[0021] Figure 2This is a schematic diagram of the internal planar structure of the storage box of a vegetable cold chain preservation device proposed in this invention.
[0022] Figure 3 This is a three-dimensional structural diagram of the recycling mechanism of a vegetable cold chain preservation device proposed in this invention.
[0023] Figure 4 This is a schematic diagram of the internal structure of a rectangular guide tube in a vegetable cold chain preservation device proposed in this invention.
[0024] Figure 5 This is a schematic diagram of the inclined plate, the collection cavity, and the blocking rod of a vegetable cold chain preservation device proposed in this invention.
[0025] Figure 6 This is a schematic diagram showing the positions of the inclined plate and cleaning mechanism of a vegetable cold chain preservation device proposed in this invention.
[0026] Figure 7 For the present invention Figure 6 Enlarged structural diagram of part A.
[0027] Figure 8 This is a schematic diagram showing the connection and structure of the micro motor and cleaning mechanism of the present invention.
[0028] In the diagram: 1. Storage box; 2. Top cover; 3. Liquid delivery assembly; 4. Cooling assembly; 5. Recycling mechanism; 51. Water receiving box; 52. Sealing plate; 53. Rectangular guide pipe; 54. Hose; 55. Sub-shell; 56. Water outlet; 57. Cleaning mechanism; 571. Divider plate; 572. Movable push plate; 573. Receiving groove; 574. Guide ridge; 575. Transmission wheel; 576. Strip groove; 58. Rotating rod; 59. Blocking rod; 510. First inclined part; 511. Inclined plate; 512. Arc plate; 513. Gathering cavity; 514. Auxiliary blocking strip; 515. Second inclined part; 516. Micro motor; 517. Bevel gear shaft; 6. Bearing frame; 7. Guide rod; 8. Support ring; 9. Spring; 10. Limiting block; 11. Positioning groove. Detailed Implementation
[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.
[0030] Example 1
[0031] like Figure 1 , Figure 3 and Figure 5As shown, a vegetable cold chain preservation device includes a storage box 1 and a top cover 2. The storage box 1 and the top cover 2 are connected by a hinge. A spray assembly is provided on the inner side of the top cover 2 along its own length. A recycling mechanism 5 is provided on the inner side of the storage box 1. One end of the recycling mechanism 5 is connected to a liquid conveying assembly 3. The outlet end of the liquid conveying assembly 3 is connected to a cooling assembly 4. The cooling assembly 4 is connected to the spray assembly inside the top cover 2.
[0032] The recycling mechanism 5 includes a water receiving box 51 and a rectangular guide pipe 53 inserted at one corner of the water receiving box 51. The water receiving box 51 is slidably disposed at the bottom of the storage box 1. A rotating rod 58 is rotatably installed inside the rectangular guide pipe 53. A blocking rod 59 is rotatably installed on the outer wall of the rotating rod 58 along the axial direction. Multiple blocking rods 59 are spliced to form a plate-shaped impurity blocking structure. Filter holes are opened inside the blocking rod 59. An arc-shaped plate 512 is fixedly installed on the inner wall of the rectangular guide pipe 53, and a collection cavity 513 is formed on one side of the arc-shaped plate 512. The rotating rod 58 is located on the axis of the collection cavity 513. The blocking rod 59 is arranged radially along the collection cavity 513. The blocking rod 59 is used to initially block impurities, and the collection cavity 513 is used to collect and block impurities for a secondary purpose. When the rotating rod 58 rotates, it drives the blocking rod 59 to scrape out the impurities inside the collection cavity 513. A cleaning mechanism 57 is provided in the upper half of the rectangular guide pipe 53.
[0033] It should be noted that the cooling component 4 adopts a small compressor refrigeration structure, and the spray component includes a spray main pipe and several evenly distributed atomizing spray heads. The water inlet end of the spray main pipe is sealed and connected to the water outlet end of the cooling component 4. The blocking rod 59 is rotatably connected to the rotating rod 58 through a torsion spring. The initial state of the torsion spring keeps the blocking rod 59 in a spliced state to block impurities in the water flow. The liquid conveying component 3 is a closed-loop fluid conveying structure, including a centrifugal pump, a flow regulating valve, a check valve, and pipelines. Each component is detachably connected through a sealed joint.
[0034] In this embodiment, the specific implementation scenario is as follows: suitable for fresh storage when picking vegetables on site. When using it, the vegetables to be preserved are placed in the storage box 1 and the top cover 2 is closed. Then, the cooling component 4 is activated to cool the circulating water to 2-5℃. The liquid delivery component 3 pumps the circulating water to the spray component and sprays it evenly on the surface of the vegetables through the atomizing spray head to achieve cooling, moisturizing and fresh preservation.
[0035] It should be noted that the circulating water after spraying falls into the water receiving box 51 at the bottom of the collection box 1. After the circulating water gathers in the water receiving box 51, it flows back through the rectangular guide pipe 53. During the backflow process, the blocking rods 59 block vegetable leaves, mud, and other impurities through the filter holes. Some small impurities settle into the collection chamber 513 with the water flow. Multiple blocking rods 59 are connected to the rotating rod 58 through torsion springs. In the initial state, the torsion springs keep the blocking rods 59 radially extended along the collection chamber 513, splicing them into a plate-shaped impurity blocking structure that completely covers the water flow channel of the rectangular guide pipe 53. When the circulating water in the water receiving box 51 flows into the rectangular guide pipe 53, the water flows through the filter holes on the blocking rods 59. Large particles of impurities such as vegetable leaves and mud are intercepted by the plate-shaped impurity blocking structure, achieving preliminary filtration and preventing large particles of impurities from directly entering the subsequent pipeline and causing blockage. At the same time, the collection chamber 513 formed by the arc-shaped plate 512 changes the cross-section of the water flow channel, and the water flow velocity increases during the accumulation process. The flow naturally slows down within the collecting chamber 513, causing the fine impurities that were originally suspended with the water flow to lose their support and gradually settle to the bottom of the collecting chamber 513, completing secondary filtration. Subsequently, the rotating rod 58 drives the blocking rod 59. During the rotation, the blocking rod 59 slides against the inner wall of the arc-shaped plate 512, thoroughly scraping away the fine impurities that have settled at the bottom of the collecting chamber 513. The scraped-off impurities are pushed to the cleaning mechanism 57 area, allowing the impurities to completely detach from the circulating water channel of the rectangular guide pipe 53, preventing impurities from accumulating and clogging the pipes at the source, and ensuring that the circulation efficiency of the circulating water system is not affected. The purified circulating water re-enters the liquid conveying component 3 for recycling. The water receiving box 51 is slidably set at the bottom of the storage box 1 and can be easily pulled out. When a small amount of sediment remains in the box, the water receiving box 51 can be directly pulled out for cleaning without disassembling the entire circulation system. The operation is convenient and efficient, greatly reducing the maintenance difficulty and frequency of the device, and adapting to the usage needs of different scenarios.
[0036] It should be added that, such as Figure 1 and Figure 2 As shown, a limiting block 10 is provided at the bottom of the top cover 2, and a positioning groove 11 is provided at the top of the storage box 1. When the top cover 2 is fastened to the top of the storage box 1, the limiting block 10 is embedded in the positioning groove 11. When the top cover 2 is fastened to the top of the storage box 1 around the hinge, the limiting block 10 is embedded in the positioning groove 11, forming a mechanical limiting fixation. On the one hand, it can prevent the top cover 2 from shifting due to transportation vibration or external force after it is closed, ensuring the stability of the closed state of the device. On the other hand, by fitting together, it fills the closing gap between the top cover 2 and the storage box 1, helping to improve the sealing performance of the device, reducing the leakage of circulating water and the loss of cold air in the box, and providing a sealed environment for vegetable preservation.
[0037] It should also be noted that, such as Figure 1 and Figure 2As shown, the storage box 1 has a support frame 6 inside, and a guide rod 7 is installed on the inner wall of the storage box 1. A support ring 8 is sleeved on the outer wall of the guide rod 7. The end of the support frame 6 is sleeved on the guide rod 7, and the support frame 6 overlaps the upper surface of the support ring 8. A spring 9 is fixedly connected to the lower surface of the support ring 8. The spring 9 is fixedly connected to the storage box 1. The support frame 6 is centrally located inside the storage box 1. The support frame 6 adopts a hollow structure design, which can provide stable support for vegetables and ensure that the low-temperature circulating water sprayed by the spray component penetrates evenly to all layers of the vegetables, avoiding insufficient local cooling and affecting the preservation effect. The guide rod 7 is set on the inner wall of the storage box 1 at the positions corresponding to the two ends of the support frame 6. The support frame 6 is used to determine the position of the vegetables. When storing vegetables, the support frame 6 moves downward under the pressure of the vegetables and transmits the force to the spring 9 below. The spring 9 supports the support frame 6 through the support ring 8, forming an elastic buffer. The shock-absorbing support system effectively reduces the vibration and impact forces generated during short-distance transport and handling, preventing damage to vegetables such as skin breakage and leaf drop due to hard collisions and squeezing. It is especially suitable for the preservation needs of fragile vegetables such as leafy vegetables and fruit vegetables. At the same time, the extension and contraction characteristics of the spring 9 can adaptively adjust the height of the support frame 6 according to the weight of the vegetables, adapting to the carrying needs of different storage volumes of vegetables and ensuring placement stability. When the amount of vegetables stored is small, the spring 9 contracts less, and the support frame 6 is in a higher position, reducing the path of circulating water spray. When the amount of vegetables stored is large, the spring 9 contracts moderately, and the support frame 6 moves down accordingly, ensuring that the vegetables can be placed stably and do not exceed the closed range of the storage box 1. This achieves flexible adaptation to different storage volumes of vegetables, always ensuring the stability and safety of vegetable placement. In addition, the bottom edge of the support frame 6 smoothly overlaps the upper surface of the support ring 8, forming a balanced support structure and ensuring that the support frame 6 is subjected to uniform force.
[0038] Example 2
[0039] like Figure 2 and Figure 3 As shown, a sealing plate 52 is provided at the end of the rectangular guide pipe 53. The sealing plate 52 is fastened to the junction of the rectangular guide pipe 53 and the water receiving box 51. The rectangular guide pipe 53 is connected to a hose 54 through the sealing plate 52. The hose 54 is connected to the water pump in the liquid delivery assembly 3. The axis of the collecting cavity 513 is lower than the axis of the hose 54 to form a height difference, which is used to allow impurities in the water flow to settle in the collecting cavity 513.
[0040] It should be noted that after the sealing plate 52 is snapped on, it fits perfectly against the junction of the rectangular guide pipe 53 and the water receiving box 51. This ensures the sealing performance of the connection and prevents leakage of circulating water. The snap-on structure also allows for quick disassembly and assembly, facilitating cleaning and maintenance of the interior of the rectangular guide pipe 53. The height difference between the axis of the collecting chamber 513 and the axis of the hose 54 causes the water flow to slow down naturally due to gravity and changes in the channel cross-section after entering the collecting chamber 513. Fine impurities such as mud, sand, and vegetable scraps that were originally suspended with the water flow lose their flow momentum and gradually settle to the bottom of the collecting chamber 513. This ensures that mud, sand, and vegetable scraps settle completely, preventing them from entering the hose 54 with the water flow and causing pipe blockage. It also prevents pump impeller jamming, ensuring the service life and operational stability of all components of the circulation system and ensuring smooth and unobstructed circulation of water.
[0041] It should also be noted that, such as Figure 3 , Figure 4 and Figure 5 As shown, the top of the rectangular guide pipe 53 is provided with an outlet 56, and the end of the arc plate 512 is fixedly connected to an inclined plate 511. The end of the inclined plate 511 is fixedly connected to the edge of the outlet 56. During the circulating water return filtration process, vegetable leaves, mud and other impurities intercepted by the blocking rod 59 and separated by the sedimentation of the collection chamber 513 will gradually move towards the junction of the arc plate 512 and the inclined plate 511 under the continuous push of the circulating water. During the continuous flow of water, these impurities will be discharged from the outlet 56 to the outside of the rectangular guide pipe 53 along the slope of the inclined plate 511. The impurities can be automatically cleaned without manual intervention. This method can ensure that the inside of the collection chamber 513 is always clean and will not affect the water flow speed and filtration effect due to the accumulation of impurities. At the same time, the cooperation between the outlet 56 and the inclined plate 511 ensures that the impurity discharge path and the circulating water flow path do not interfere with each other, which not only ensures the thoroughness of impurity discharge, but also does not affect the normal return purification of circulating water.
[0042] Example 3
[0043] like Figure 4 and Figure 7 As shown, a sub-shell 55 is fixedly installed on the side of the rectangular guide tube 53. A micro motor 516 is fixedly installed inside the sub-shell 55. A bevel gear shaft 517 is fixedly connected to one end of the rotating rod 58 and the output end of the micro motor 516. The bevel gears at the ends of the two bevel gear shafts 517 mesh with each other.
[0044] It should be noted that the sub-shell 55 is used to prevent circulating water from seeping into the interior and corroding the micro motor 516 and the bevel gear shaft 517. The micro motor 516 is a low-power DC motor, which is adapted to the power supply requirements of the device in the cold chain preservation scenario. It can achieve forward and reverse rotation and speed adjustment through an external controller. Through the transmission between the bevel gear shafts 517, it drives the rotating rod 58 to accurately complete the impurity scraping action.
[0045] It should also be noted that, such as Figure 5 , Figure 6 and Figure 7 As shown, an auxiliary blocking strip 514 is provided at the junction of the inclined plate 511 and the arc plate 512. The auxiliary blocking strip 514 is arranged radially along the collection cavity 513, and a second inclined portion 515 is symmetrically provided at the edge of the auxiliary blocking strip 514. A first inclined portion 510 is provided at the corner of the blocking rod 59. The shape of the first inclined portion 510 is adapted to the second inclined portion 515. When the rotating rod 58 drives the blocking rod 59, the first inclined portion 510 on the blocking rod 59 fits against the second inclined portion 515 on the auxiliary blocking strip 514. Since the auxiliary blocking strip 514 is a fixed structure, under its rigid obstruction, the blocking rod 59 cannot continue to rotate linearly in the original direction and can only be forced to rotate around the connection point with the rotating rod 58. This rotation will cause the filter of the blocking rod 59 to be affected. The pore surface forms an angle of 30°-45° with the direction of circulating water flow, which completely changes the contact state between impurities and filter holes, allowing the water flow to flush away impurities and prevent impurities from adhering to the surface of the baffle rod 59 and causing filter hole blockage. During this process, the auxiliary baffle bar 514 and the baffle rod 59 are spliced together to still form a plate-shaped filter structure to block impurities, ensuring the continuity of filtration and preventing filtration gaps from appearing due to the rotation of the baffle rod 59. When the baffle rod 59 leaves the auxiliary baffle bar 514, the rebound of the torsion spring will bounce the baffle rod 59 back to its initial angle, pulling the baffle rod 59 back to its initial radially extended position, so that it can be spliced with other baffle rods 59 to form a complete plate-shaped impurity blocking structure, realizing the automatic reset and circulating filtration of the baffle rod 59, and maintaining a high-efficiency filtration state without manual intervention.
[0046] Example 4
[0047] like Figure 4 and Figure 5 As shown, the cleaning mechanism 57 is located at the end of the junction of the inclined plate 511 and the arc plate 512. The cleaning mechanism 57 includes a partition plate 571 and a movable push plate 572. The partition plate 571 is integrally formed on the inner wall of the rectangular guide tube 53. The partition plate 571 is flush with the lowest point of the inclined plate 511. The movable push plate 572 is slidably disposed on the upper surface of the partition plate 571.
[0048] It should be noted that the partition plate 571 divides the inlet of the rectangular guide pipe 53 into two areas: the lower side is the water flow channel and the upper side is the impurity temporary storage channel. With the forced circulation water, it can only flow into the rectangular guide pipe 53 from the lower channel. During this process, by using the natural thrust of the inclined water flow, the scraped impurities are driven to move towards the inclined plate 511. During the circulation water flow, the movable push plate 572 will continuously push the circulation water, thereby ensuring that the impurities can flow away from the inclined plate 511 and preventing the scraped impurities from falling back into the collection chamber 513.
[0049] It should also be noted that, such as Figure 5 As shown, a guide rib 574 is provided on the inner side wall of the bent part of the movable push plate 572. The movable push plate 572 is slidably connected to the rectangular guide pipe 53 through the guide rib 574. A receiving groove 573 is provided at the junction of the rectangular guide pipe 53 and the movable push plate 572. The receiving groove 573 provides the movable push plate 572 with a moving space. At the same time, the presence of the guide rib 574 determines the moving path of the movable push plate 572. The sliding of the movable push plate 572 will directly push the circulating water on the surface of the partition plate 571, thereby increasing the local water flow velocity and forming a directional thrust. This thrust can ensure that impurities move smoothly along the slope of the inclined plate 511, while avoiding the accumulation of impurities at the junction and forcing the impurities to be discharged from the outlet 56.
[0050] It should be added that, such as Figure 8 As shown, a strip groove 576 is provided on the outer side wall of the bent part of the movable push plate 572. The strip groove 576 is vertically arranged. A transmission wheel 575 is rotatably installed on the inner side wall of the sub-shell 55. The transmission wheel 575 is connected to the bevel gear shaft 517 at the end of the rotating rod 58 through a chain or transmission belt. A push rod is provided at the eccentric part on one side of the transmission wheel 575. The push rod is slidably connected inside the strip groove 576. When the micro motor 516 drives the bevel gear shaft 517 to rotate the rotating rod 58 to scrape off impurities, the bevel gear shaft 517 transmits power synchronously to the transmission wheel 575 through the chain or transmission belt, so that the transmission wheel 575 rotates synchronously with the bevel gear shaft 517. Because the push rod is eccentrically mounted on the transmission wheel 575, the circular motion of the transmission wheel 575 drives the push rod to perform eccentric circular motion. The push rod is slidably connected inside the strip groove 576. Under the limiting action of the strip groove 576, the eccentric circular motion is precisely converted into the linear reciprocating motion of the movable push plate 572 along the surface of the partition plate 571. The direction of motion is completely consistent with the impurity discharge path. The impurity scraping action of the rotating rod 58 is completely synchronized with the pushing action of the movable push plate 572. The scraped impurities can be pushed out immediately, avoiding the accumulation and coagulation of impurities in the cavity and improving cleaning efficiency.
[0051] Working principle of the invention:
[0052] When using the device, first place the vegetables to be preserved on the support frame 6 inside the storage box 1. The weight of the vegetables presses down, causing the support ring 8 to compress the spring 9. The spring 9 forms a buffer protection through elastic deformation, preventing the vegetables from being squeezed and bumped due to the vibration of the device. It can also adaptively adjust the bearing height according to the weight of the vegetables. Then close the top cover 2. The limiting block 10 at the bottom of the top cover is embedded into the positioning groove 11 at the top of the storage box 1 to form a mechanical limiting and fixing, fill the closing gap, improve the sealing of the device, reduce the loss of cold air, and provide a stable low-temperature sealed environment for vegetable preservation.
[0053] Start the liquid delivery component 3 and the cooling component 4. The cooling component 4 cools the circulating water to the optimal temperature range of 2-5℃ for vegetable preservation. The centrifugal pump in the liquid delivery component 3 sends the low-temperature circulating water into the spray component of the top cover 2. It is then delivered to each atomizing spray head through the spray pipe and sprayed evenly onto the surface of the vegetables to achieve cooling, moisturizing and preservation. The circulating water after spraying falls into the water collection box 51 at the bottom of the storage box 1. After being filtered and purified by the rectangular guide pipe 53, it flows back to the liquid delivery component 3 through the hose 54.
[0054] It should be noted that the junction of the rectangular guide pipe 53 and the water receiving box 51 is sealed by the sealing plate 52. After the circulating water flows into the rectangular guide pipe 53, the filter holes of the blocking rod 59 can intercept large particles of impurities such as vegetable leaves and mud, achieving preliminary filtration. At the same time, the axis of the collecting chamber 513 is lower than the axis of the hose 54, and the resulting height difference slows down the water flow, causing fine impurities to settle to the bottom of the chamber, completing secondary filtration.
[0055] Then, the low-power micro motor 516 inside the sub-shell 55 is started. The power is transmitted to the rotating rod 58 through two meshing bevel gear shafts 517, which drives the blocking rod 59 to rotate. During the rotation, the first inclined part 510 at the corner of the blocking rod 59 is in contact with the second inclined part 515 on the edge of the auxiliary blocking strip 514. The auxiliary blocking strip 514 forces the blocking rod 59 to rotate, thereby changing the contact angle between the impurities on the side of the blocking rod 59 and the water flow, making it easier for the water flow to flush away the attached impurities. During the rotation, the auxiliary blocking strip 514 and the blocking rod 59 are still spliced together to maintain the plate-shaped filter structure, preventing impurities from flowing back.
[0056] After the blocking rod 59 leaves the auxiliary blocking bar 514, the torsion spring causes it to rebound to the initial angle. While the rotating rod 58 rotates, the bevel gear shaft 517 at its end drives the transmission wheel 575 through a chain or transmission belt. The push rod at the eccentric part of the transmission wheel 575, through the cooperation of the strip groove 576, converts the circular motion into the linear reciprocating motion of the movable push plate 572. The movable push plate 572 slides along the receiving groove 573 of the rectangular guide pipe 53 through the guide protrusion 574, which accelerates the flow rate of the circulating water on the surface of the partition plate 571 to prevent impurities from falling back into the collection chamber 513. Finally, the impurities are discharged from the outlet 56 along the slope of the inclined plate 511.
[0057] The purified circulating water re-enters the liquid delivery assembly 3 through the hose 54, completing the closed-loop circulation. Throughout the process, the water receiving box 51 can be slidably pulled out to facilitate the cleaning of residual impurities and ensure the long-term stable operation of the device.
[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A vegetable cold chain preservation device, comprising a storage box (1) and a top cover (2), wherein the storage box (1) and the top cover (2) are connected by a hinge, and a spray assembly is provided on the inner side of the top cover (2) along its length, characterized in that, The storage box (1) is provided with a recycling mechanism (5) on the inside. One end of the recycling mechanism (5) is connected to a liquid conveying component (3). The outlet end of the liquid conveying component (3) is connected to a cooling component (4). The cooling component (4) is connected to a spraying component inside the top cover (2). The recycling mechanism (5) includes a water receiving box (51) and a rectangular guide tube (53) inserted at one corner of the water receiving box (51). The water receiving box (51) is slidably disposed at the bottom of the storage box (1). A rotating rod (58) is rotatably installed inside the rectangular guide tube (53). A blocking rod (59) is rotatably installed on the outer wall of the rotating rod (58) along the axial direction. Multiple blocking rods (59) are spliced together to form a plate-shaped impurity blocking structure. Filter holes are opened inside the blocking rods (59). A filter is fixedly installed on the inner wall of the rectangular guide tube (53). There is an arc plate (512), and a gathering cavity (513) is formed on one side of the arc plate (512). The rotating rod (58) is located on the axis of the gathering cavity (513). The blocking rod (59) is arranged radially along the gathering cavity (513). The blocking rod (59) is used to initially block impurities. The gathering cavity (513) is used to gather and block impurities for a second time. When the rotating rod (58) rotates, it drives the blocking rod (59) to scrape out the impurities inside the gathering cavity (513). A cleaning mechanism (57) is provided in the upper half of the rectangular guide tube (53).
2. The vegetable cold chain preservation device according to claim 1, characterized in that, The bottom of the top cover (2) is provided with a limiting block (10), and the top of the storage box (1) is provided with a positioning groove (11). When the top cover (2) is fastened to the top of the storage box (1), the limiting block (10) is embedded in the positioning groove (11).
3. The vegetable cold chain preservation device according to claim 1, characterized in that, The storage box (1) is provided with a support frame (6) inside. A guide rod (7) is provided on the inner side wall of the storage box (1). A support ring (8) is sleeved on the outer wall of the guide rod (7). The end of the support frame (6) is sleeved on the guide rod (7), and the support frame (6) overlaps the upper surface of the support ring (8). A spring (9) is fixedly connected to the lower surface of the support ring (8). The spring (9) is fixedly connected to the storage box (1).
4. The vegetable cold chain preservation device according to claim 1, characterized in that, The rectangular guide pipe (53) is provided with a sealing plate (52) at its end. The sealing plate (52) is fastened to the junction of the rectangular guide pipe (53) and the water receiving box (51). The rectangular guide pipe (53) is connected to a hose (54) through the sealing plate (52). The hose (54) is connected to the water pump in the liquid delivery assembly (3). The axis of the collecting cavity (513) is lower than the axis of the hose (54) to form a height difference, which is used to allow impurities in the water flow to settle in the collecting cavity (513).
5. A vegetable cold chain preservation device according to claim 1, characterized in that, The top of the rectangular guide pipe (53) is provided with an outlet (56), and the end of the arc plate (512) is fixedly connected to an inclined plate (511), the end of the inclined plate (511) is fixedly connected to the edge of the outlet (56).
6. A vegetable cold chain preservation device according to claim 5, characterized in that, An auxiliary blocking strip (514) is provided at the junction of the inclined plate (511) and the arc plate (512). The auxiliary blocking strip (514) is arranged radially along the gathering cavity (513), and a second inclined part (515) is symmetrically provided at the edge of the auxiliary blocking strip (514). A first inclined part (510) is provided at the corner of the blocking rod (59), and the shape of the first inclined part (510) is adapted to the second inclined part (515).
7. A vegetable cold chain preservation device according to claim 1, characterized in that, A sub-shell (55) is fixedly installed on the side of the rectangular guide tube (53). A micro motor (516) is fixedly installed inside the sub-shell (55). A bevel gear shaft (517) is fixedly connected to one end of the rotating rod (58) and the output end of the micro motor (516). The bevel gears at the ends of the two bevel gear shafts (517) mesh with each other.
8. A vegetable cold chain preservation device according to claim 1, characterized in that, The cleaning mechanism (57) is located at the end of the junction of the inclined plate (511) and the arc plate (512). The cleaning mechanism (57) includes a partition plate (571) and a movable push plate (572). The partition plate (571) is integrally formed on the inner wall of the rectangular guide tube (53). The partition plate (571) is flush with the lowest point of the inclined plate (511). The movable push plate (572) is slidably disposed on the upper surface of the partition plate (571).
9. A vegetable cold chain preservation device according to claim 8, characterized in that, The inner sidewall of the bent portion of the movable push plate (572) is provided with a guide protrusion (574). The movable push plate (572) is slidably connected to the rectangular guide tube (53) through the guide protrusion (574). A receiving groove (573) is provided at the junction of the rectangular guide tube (53) and the movable push plate (572).
10. A vegetable cold chain preservation device according to claim 9, characterized in that, A strip groove (576) is provided on the outer wall of the bent part of the movable push plate (572). The strip groove (576) is vertically arranged. A transmission wheel (575) is rotatably installed on the inner wall of the sub-shell (55). The transmission wheel (575) is connected to the bevel gear shaft (517) at the end of the rotating rod (58) by a chain or transmission belt. A push rod is provided at the eccentric part on one side of the transmission wheel (575). The push rod is slidably connected inside the strip groove (576).