A device for keeping vegetables fresh after being picked

Abstract

The invention relates to a post-picking vegetable illumination preservation device, which effectively solves the problem of short preservation time of existing broccoli in stores; the technical solution thereof comprises a vertical lamp tube, an annular cavity is arranged outside the lamp tube, a plurality of connecting rods are evenly distributed on the upper circumference of each annular cavity, a conical cylinder is rotatably mounted on the outer end of each connecting rod, a reel coaxially fixed with the conical cylinder is arranged below the connecting rod, a rope is wound on the reel, a coil spring which can reset and rotate the reel is coaxially fixed on the reel, a first piston cylinder is fixed at the lower end of each connecting rod, the free end of the rope is fixed on the piston of the first piston cylinder corresponding to the first piston cylinder, a first spring which can reset the first piston cylinder in a direction away from the reel is arranged on the piston of the first piston cylinder, the bottom of the first piston cylinder is connected with the annular cavity via an air pipe, a second piston cylinder is fixed below each connecting rod, and a second spring which can reset the second piston cylinder upward is arranged on the piston rod of the second piston cylinder.

Description

Technical Field

[0001] The invention relates to the field of fluorescent fresh-keeping equipment, in particular to a device for illuminating and preserving vegetables after they are picked. Background Art

[0002] Broccoli is a common economical vegetable. Under natural conditions, the shelf life of broccoli after picking is short. After the chlorophyll is decomposed, the appearance of the broccoli will turn from bright yellow to yellow, which will affect the later sales. During transportation and storage, refrigeration is usually used for preservation. However, when sold in shopping malls, refrigerators are inconvenient to display and have large costs. Studies have shown that the cellular aging rate of broccoli exposed to fluorescent light at room temperature is significantly slowed down, which can effectively achieve the preservation effect. However, traditional fresh-keeping shelves directly stack goods on the display racks, which makes the vegetable lighting surface uneven, resulting in partial staleness of the vegetables, thus affecting the overall quality of the vegetables. Therefore, at this stage, a display rack that can realize vegetable light preservation is needed to solve the problem of uneven vegetable preservation during the vegetable light preservation process. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a device for light preservation of vegetables after picking, which effectively solves the problem of short preservation time of broccoli in the existing market.

[0004] The technical solution to the problem includes a base, on which a vertical lamp tube is installed, and a hollow tube of transparent material is coaxially sleeved outside the lamp tube, and the hollow tube is evenly spaced with a plurality of annular cavities fixed on the hollow tube along its axial direction, and a plurality of connecting rods whose inner ends are hinged on the hollow tube are evenly distributed on the upper circumference of each annular cavity, and a conical cylinder with an opening facing upward is rotatably installed on the outer end of each connecting rod, and a reel coaxially fixed with the conical cylinder is provided below the connecting rod, a rope is wound on the reel, and a coil spring capable of resetting and rotating is coaxially fixed on the reel, and a first piston cylinder with an opening facing the reel is fixed at the lower end of each connecting rod, and the free end of the rope is fixed on the piston of the first piston cylinder corresponding to it, and the piston of the first piston cylinder is provided with a first spring capable of resetting it away from the reel, and the bottom of the first piston cylinder is connected with the annular cavity through an air pipe, and a second piston cylinder with a piston rod facing upward and connected with the annular cavity is fixed below each connecting rod, and the outer end of the connecting rod swings downward to squeeze the piston rod of the second piston cylinder, and the piston rod of the second piston cylinder is provided with a second spring capable of resetting it upward.

[0005] Furthermore, the hollow tube is provided with a plurality of hinge ears corresponding to the connecting rods one by one, the connecting rods are hinged on the hinge ears, and the hinge ears are provided with torsion springs that can make the free ends of the connecting rods swing upwards and reset.

[0006] Furthermore, a roller is rotatably mounted on the upper end of the piston rod of the second piston cylinder.

[0007] Furthermore, the medium in the first piston cylinder, the second piston cylinder and the annular cavity is liquid water.

[0008] Furthermore, one end of the first spring is fixed at the opening of the first piston cylinder, a stopper is provided at the opening of the first piston cylinder, and the other end is fixed to the piston of the first piston cylinder. One end of the second spring is fixed to the bottom of the second piston cylinder, and the other end is fixed to the bottom of the piston rod of the second piston cylinder. The elastic strength of the second spring is greater than the elastic strength of the first spring, and the elastic strength of the first spring is greater than the elastic strength of the coil spring.

[0009] Furthermore, a first permanent magnet is provided on the outside of each connecting rod, and a second permanent magnet is provided below the first permanent magnet, which can be adsorbed thereto and fixed on the cylinder body of the second piston cylinder. When the connecting rod rotates to a horizontal position, the first permanent magnet is adsorbed to the second permanent magnet.

[0010] Furthermore, the hollow tube may be made of transparent glass.

[0011] The present invention has novel concept, ingenious structure and strong practicality. After taking out a broccoli, the pressure accumulated in the second piston cylinder is released to make all the conical cylinders in this layer rotate, and the remaining broccoli rotates so that all sides of the broccoli are illuminated by fluorescent light, which promotes the preservation time. At the same time, there is no need to add additional power source, making the whole device more suitable for shopping malls. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front cross-sectional view of the present invention.

[0013] Figure 2 It is a top view of the cross section of the present invention.

[0014] Figure 3 For the present invention Figure 1 A partial enlarged view of area A.

[0015] Figure 4 For the present invention Figure 2 A partial enlarged view of area B in the middle. DETAILED DESCRIPTION

[0016] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0017] Depend on Figures 1 to 4It can be seen that the present invention includes a base 1, on which a vertical lamp tube 2 is installed, and a hollow tube 3 of transparent material is coaxially sleeved outside the lamp tube 2, and the hollow tube 3 is evenly spaced along its axial direction with multiple annular cavities 4 fixed on the hollow tube 3, and each annular cavity 4 is evenly distributed on the upper circumference with multiple connecting rods 5 whose inner ends are hinged on the hollow tube 3, and each connecting rod 5 is rotatably installed with a conical cylinder 6 with an opening facing upward at the outer end, and a reel 7 coaxially fixed with the conical cylinder 6 is provided below the connecting rod 5, and a rope 8 is wound on the reel 7, and a coil spring 9 that can reset and rotate the reel 7 is coaxially fixed on the reel 7, and each connecting rod 5 has a A first piston cylinder 10 with an opening facing the reel 7 is fixed at the lower end, and the free end of the rope 8 is fixed on the piston of the first piston cylinder 10 corresponding to it. The piston of the first piston cylinder 10 is provided with a first spring 11 that can reset it away from the reel 7. The bottom of the first piston cylinder 10 is connected with the annular cavity 4 through the air pipe 12. A second piston cylinder 13 with a piston rod facing upward and connected with the annular cavity 4 is fixed under each connecting rod 5. The outer end of the connecting rod 5 swings downward to squeeze the piston rod of the second piston cylinder 13, and the piston rod of the second piston cylinder 13 is provided with a second spring 14 that can reset it upward.

[0018] In order to realize the installation of the connecting rod 5 on the hollow tube 3 and facilitate the upward reset of the free end of the connecting rod 5, the hollow tube 3 is provided with a plurality of hinge ears corresponding to the connecting rod 5 one by one, the connecting rod 5 is hinged on the hinge ears, and the hinge ears are provided with a torsion spring 15 that can swing the free end of the connecting rod 5 upward and reset.

[0019] In order to realize the extrusion drive of the connecting rod 5 on the piston rod on the second piston cylinder 13, a roller 16 is rotatably mounted on the upper end of the piston rod of the second piston cylinder 13.

[0020] In order to realize the driving of the first piston cylinder 10 and the second piston cylinder 13 , the medium in the first piston cylinder 10 , the second piston cylinder 13 and the annular chamber 4 is liquid water.

[0021] In order to realize the installation of a spring and a second spring 14, one end of the first spring 11 is fixed at the opening of the first piston cylinder 10, a stopper is provided at the opening of the first piston cylinder 10, and the other end is fixed on the piston of the first piston cylinder 10. One end of the second spring 14 is fixed to the bottom of the second piston cylinder 13, and the other end is fixed to the bottom of the piston rod of the second piston cylinder 13. The elastic strength of the second spring 14 is greater than the elastic strength of the first spring 11, and the elastic strength of the first spring 11 is greater than the elastic strength of the coil spring 9.

[0022] In order to achieve radial support and limitation of the connecting rod 5 along the hollow tube 3, a first permanent magnet 17 is provided on the outer side of each connecting rod 5, and a second permanent magnet 18 is provided below the first permanent magnet 17, which can be adsorbed thereon and fixed on the cylinder body of the second piston cylinder 13. When the connecting rod 5 rotates to a horizontal position, the first permanent magnet 17 and the second permanent magnet 18 are adsorbed thereon.

[0023] The hollow tube 3 may be made of transparent glass.

[0024] The specific working process of the present invention is as follows: when the device is in use, the neck of the broccoli is placed in the conical tube 6, and the free end of the connecting rod 5 is moved downward and gradually tends to be horizontal through the mass of the broccoli and manual operation. At this time, the first permanent magnet 17 and the second permanent magnet 18 are attracted to each other to assist the connecting rod 5 to remain horizontal. In this process, the rotating torsion spring 15 of the connecting rod 5 is charged, and at the same time, the rotation of the connecting rod 5 causes the piston rod of the second piston cylinder 13 to be squeezed downward, and the second spring 14 is charged. The liquid water in the annular cavity 4 is absorbed into the second piston cylinder 13, and the pressure in the annular cavity 4 is reduced. The atmospheric pressure cooperates with the first spring 11 to push the liquid water in the first piston cylinder 10 into the annular cavity 4, and the rope 8 is stretched by the piston in the first piston cylinder 10, so that the rope 8 drives the reel 7 to rotate. At this time, the coil spring 9 on the reel 7 is stretched to make it have a reset tendency, and the lamp tube 2 is energized to emit light.

[0025] The broccoli on the display stand is randomly selected by the customer. After the broccoli is taken away by the customer, the conical tube 6 loses its counterweight. Since the stem of the broccoli is inserted into the conical tube 6, the customer will drive the connecting rod 5 to move upward when taking it. In this process, the first permanent magnet 17 and the second permanent magnet 18 are assisted to separate. Under the action of the loss of counterweight and the adsorption of the first permanent magnet 17 and the second permanent magnet 18, the connecting rod 5 is reset under the reset action of the torsion spring 15. In this process, the second piston cylinder 13 corresponding to the connecting rod 5 that has lost its counterweight no longer squeezes the piston rod of the second piston cylinder 13 when the outer end of the connecting rod 5 swings upward to reset. In this process, the second piston cylinder 13 corresponding to the connecting rod 5 that has lost its counterweight no longer squeezes the piston rod of the second piston cylinder 13 when the outer end of the connecting rod 5 swings upward to reset. Now the second spring 14 is reset to squeeze the liquid water in the second piston cylinder 13 into the annular cavity 4. The pressure in the annular cavity 4 increases, so that the annular cavity 4 squeezes the liquid water inside it into multiple first piston cylinders 10 connected with it. At this time, the piston in the second piston cylinder 13 is squeezed, and the first spring 11 is squeezed, and the rope 8 is loosened. Under the action of the winding spring 9, multiple reels 7 are rotated to tighten the rope 8. At the same time, the rotation of the reel 7 makes the multiple conical tubes 6 rotate at an angle. In this process, different outer edges of the broccoli can face the lamp tube 2 so that the broccoli can be fully illuminated for freshness preservation, wherein the light source of the lamp tube is at least but not limited to fluorescence, ultraviolet light, pulse light, and LED light.

[0026] Compared with traditional equipment, this device has the following advantages:

[0027] 1. In the device, every time a customer picks up a broccoli, the connecting rod 5 corresponding to the broccoli no longer squeezes the corresponding second piston cylinder 13 under the reset action of the torsion spring 15. The liquid water in the second piston cylinder 13 enters the annular cavity 4 under the action of the second spring 14. The pressure in the annular cavity 4 increases, so that the multiple first piston inner pistons connected thereto move outward. The rope 8 is relaxed, and the reel 7 is reset and rotated under the action of the winding spring 9, and the conical cylinder 6 is driven to rotate an angle. During this process, the remaining multiple broccoli rotate on their own, and the later the broccoli is picked, the more effectively its outer edge can be evenly contacted with the fluorescent light, which promotes its freshness preservation, thereby achieving an increase in the freshness-keeping period of the entire broccoli.

[0028] 2. The broccoli that can be sold using this device must be of high quality, with relatively uniform flowers and relatively large mass. It is placed on the outside of the connecting rod 5, and its gravity is amplified by the lever structure and combined with the adsorption limit of the permanent magnet to effectively store force on the torsion spring 15. At the same time, the piston rod of the second piston cylinder 13 is compressed so that the second spring is compressed. After the broccoli is taken away, the outer end of the connecting rod 5 retracts upward, which can block the light source on the one hand, and does not hinder customers from selecting other broccoli on the other hand.

[0029] 3. After placing broccoli on the device, it takes on a cylindrical shape with uniform distribution of circumference. It is lush and green under the illumination of light. In addition to the basic functions of display and sales, it also has the functions of preservation and beautification, which can further improve the environment of the store.

Claims

1. A device for preserving vegetables after harvesting by illumination, comprising a base (1), characterized in that: A vertical lamp tube (2) is mounted on the base (1), a hollow tube (3) made of transparent material is coaxially mounted outside the lamp tube (2), a plurality of annular cavities (4) fixed on the hollow tube (3) are evenly distributed along the axial direction of the hollow tube (3), a plurality of connecting rods (5) whose inner ends are hinged to the hollow tube (3) are evenly distributed on the upper circumference of each annular cavity (4), a conical cylinder (6) with an opening facing upward is rotatably mounted on the outer end of each connecting rod (5), a reel (7) coaxially fixed to the conical cylinder (6) is provided below the connecting rod (5), a rope (8) is wound around the reel (7), a coil spring (9) is coaxially fixed to the reel (7) for enabling the reel to return to rotation, and the lower end of each connecting rod (5) is provided with a spring. A first piston cylinder (10) is fixed with an opening facing the reel (7), the free end of the rope (8) is fixed on the piston of the first piston cylinder (10) corresponding thereto, a first spring (11) is provided on the piston of the first piston cylinder (10) for returning the piston to a direction away from the reel (7), the bottom of the first piston cylinder (10) is connected to the annular cavity (4) via an air pipe (12), a second piston cylinder (13) is fixed below each connecting rod (5) with a piston rod facing upward and connected to the annular cavity (4), the outer end of the connecting rod (5) swings downward to squeeze the piston rod of the second piston cylinder (13), and a second spring (14) is provided on the piston rod of the second piston cylinder (13) for returning the piston to an upward direction; The hollow tube (3) is provided with a plurality of hinge ears corresponding one to one with the connecting rod (5), the connecting rod (5) is hinged on the hinge ears, and the hinge ears are provided with a torsion spring (15) that can make the free end of the connecting rod (5) swing upward and reset; A first permanent magnet (17) is provided on the outer side of each connecting rod (5), and a second permanent magnet (18) is provided below the first permanent magnet (17) and can be adsorbed thereon and fixed on the cylinder body of the second piston cylinder (13), and when the connecting rod (5) rotates to a horizontal position, the first permanent magnet (17) and the second permanent magnet (18) are adsorbed thereon; When the broccoli on the conical cylinder (6) is removed, the connecting rod (5) is driven to move upward, the first permanent magnet (17) is separated from the second permanent magnet (18), the connecting rod (5) is reset under the reset action of the torsion spring (15), and the second spring (14) is reset upward to push the piston rod of the second piston cylinder (13) to reset upward.

2. The device for preserving vegetables after harvesting according to claim 1, characterized in that: A roller (16) is rotatably mounted on the upper end of the piston rod of the second piston cylinder (13).

3. The device for preserving vegetables after harvesting according to claim 1, characterized in that: The medium in the first piston cylinder (10), the second piston cylinder (13) and the annular chamber (4) is liquid water.

4. The device for preserving vegetables after harvesting according to claim 1, characterized in that: One end of the first spring (11) is fixed to the opening of the first piston cylinder (10), a stopper is provided at the opening of the first piston cylinder (10), and the other end is fixed to the piston of the first piston cylinder (10); one end of the second spring (14) is fixed to the bottom of the second piston cylinder (13), and the other end is fixed to the bottom of the piston rod of the second piston cylinder (13); the elastic strength of the second spring (14) is greater than the elastic strength of the first spring (11), and the elastic strength of the first spring (11) is greater than the elastic strength of the coil spring (9).

5. The device for preserving vegetables after harvesting according to claim 1, characterized in that: The hollow tube (3) is made of transparent glass.

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