A fruit fumigation preservation device
By employing an array of trays and a pneumatic device in the fruit fumigation apparatus, the properties of methyl bromide gas are utilized to cause it to accumulate and flow at the bottom of the fruit trays, thus solving the problem of high methyl bromide gas consumption and improving fumigation efficiency and fruit processing capacity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG AOWEITE BIOTECH CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-09
AI Technical Summary
Existing fruit fumigation devices consume a large amount of methyl bromide gas and have low gas diffusion efficiency, which limits the quantity of fruit and the spacing between them.
The system employs an array-distributed tray structure and a pneumatic device. Methyl bromide gas is introduced through the pneumatic device, and taking advantage of the relatively large molecular mass of methyl bromide gas, it accumulates at the bottom of the fruit tray and flows outward through the gaps, achieving uniform fumigation.
It reduces the consumption of methyl bromide gas, improves fumigation efficiency, ensures that the fruit surface is fully in contact with the gas, and increases the quantity and spacing of the fruit.
Smart Images
Figure CN224330258U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fruit preservation technology, and in particular to a fruit fumigation and preservation device. Background Technology
[0002] Methyl bromide, also known as methyl bromide, is an organic compound mainly used as an insecticide and fumigant. To prevent harmful substances from spreading through fruits, methyl bromide is often used to fumigate fruits. Generally, the fruits are placed directly in a fumigation chamber, and then methyl bromide gas is injected to fumigate the fruits and remove the harmful substances attached to their surface.
[0003] During the fumigation process, the existing equipment is affected by factors such as gas diffusion efficiency, which limits the number of fruits in the fumigation equipment and the spacing between the fruits, while also increasing the consumption of methyl bromide gas.
[0004] In view of this, this application proposes a fruit fumigation and preservation device. Utility Model Content
[0005] The purpose of this invention is to solve the problem of high consumption of methyl bromide gas in the existing technology, and to propose a fruit fumigation and preservation device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A fruit fumigation and preservation device includes an outer shell, an array of tray structures slidably connected inside the outer shell, a pneumatic device installed inside the tray structures, and a braking structure corresponding to the pneumatic device installed inside the outer shell.
[0008] The tray structure includes a fruit tray, on which a tray frame is installed, and a movable top cover is slidably connected to the tray frame;
[0009] The pneumatic device includes mounting tubes arranged in a circumferential array on a fruit tray, with a sliding tube slidably connected inside the mounting tube, and a connecting piston slidably connected inside the sliding tube. The connecting piston is fixedly connected to a movable top cover.
[0010] As a further preferred embodiment of this technical solution, the fruit tray is equipped with symmetrically distributed support frames on its underside, and symmetrically distributed support bars are installed inside the outer shell. The support frames and support bars are slidably engaged, and the fruit tray is provided with an array of arc-shaped grooves.
[0011] As a further preferred embodiment of this technical solution, a reset tension spring is provided around the sliding tube between the sliding tube and the fruit tray. The sliding tube has circumferentially arrayed air vents. A limit slider is installed inside the sliding tube. A limit rod is slidably connected through the limit slider. The limit rod is installed inside the mounting tube. The mounting tube is connected to a connecting tube.
[0012] As a further preferred embodiment of this technical solution, the sliding tube is press-fitted with the movable top cover, and the sliding tube is connected to the mounting tube.
[0013] As a further preferred embodiment of this technical solution, the braking structure includes an air intake pipe array installed inside the outer casing, a connecting piston slidably connected inside the air intake pipe, the connecting piston having a circumferentially arrayed connecting holes, the connecting piston communicating with the air intake pipe, and the connecting piston and the connecting pipe being squeezed together.
[0014] As a further preferred embodiment of this technical solution, an mounting bracket is installed on the intake pipe, a brake slider is slidably connected to the mounting bracket, a brake spring is provided between the brake slider and the mounting bracket, the brake slider is in compression engagement with a connecting piston, and the connecting piston is in compression engagement with a connecting pipe.
[0015] This utility model has the following beneficial effects:
[0016] This invention introduces methyl bromide gas into the installation pipe through the air inlet pipe. The accumulation of methyl bromide gas causes the sliding pipe to slide upward, which in turn compresses the movable top cover to slide upward. The methyl bromide gas in the sliding pipe then flows into the fruit tray and tray frame through the air outlet. Due to the relatively large molecular mass of methyl bromide gas, it accumulates at the bottom of the fruit tray. As the methyl bromide gas accumulates, it forces the air in the fruit tray and tray frame outward through the gap between the tray frame and the movable top cover, ensuring that the methyl bromide gas fully contacts the fruit and thus reducing the consumption of methyl bromide gas. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a fruit fumigation and preservation device proposed in this utility model;
[0018] Figure 2 This is a schematic diagram of the internal structure of a fruit fumigation and preservation device proposed in this utility model;
[0019] Figure 3 This is a schematic diagram of the tray structure of a fruit fumigation and preservation device proposed in this utility model;
[0020] Figure 4 This is a schematic diagram of the pneumatic structure of a fruit fumigation and preservation device proposed in this utility model;
[0021] Figure 5 This is a cross-sectional view of the internal structure of the mounting pipe of a fruit fumigation and preservation device proposed in this utility model.
[0022] Figure 6 This is a cross-sectional view of the braking structure of a fruit fumigation and preservation device proposed in this utility model.
[0023] In the diagram: 1. Outer casing;
[0024] 2. Tray structure; 21. Fruit tray; 22. Tray frame; 23. Movable top cover; 24. Support frame; 25. Support strip;
[0025] 3. Pneumatic device; 31. Mounting pipe; 32. Connecting pipe; 33. Sliding pipe; 34. Connecting piston; 35. Return spring; 36. Limiting slider; 37. Limiting slide rod; 38. Air outlet;
[0026] 4. Braking structure; 41. Intake pipe; 42. Connecting piston; 43. Connecting hole; 44. Mounting bracket; 45. Brake slider; 46. Brake spring. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0028] This utility model provides the following technical solution:
[0029] like Figures 1 to 6As shown, a fruit fumigation and preservation device includes an outer casing 1, with an array of tray structures 2 slidably connected inside the outer casing 1. A pneumatic device 3 is installed inside the tray structures 2, and a braking structure 4 corresponding to the pneumatic device 3 is installed inside the outer casing 1. The tray structure 2 includes a fruit tray 21, with a tray frame 22 mounted on it. A movable top cover 23 is slidably connected to the tray frame 22. The pneumatic device 3 includes mounting tubes 31 arranged in a circumferential array on the fruit tray 21. A sliding tube 33 is slidably connected inside the mounting tubes 31, and a connecting piston 34 is slidably connected inside the sliding tubes 33. The connecting piston 34 is fixedly connected to the movable top cover 23. It should be noted that the fruit to be fumigated is placed on the fruit tray 21, and then the fruit tray 21 is placed into the outer casing. Inside body 1, the door of outer casing 1 is closed, and methyl bromide gas is introduced into braking structure 4, then enters the mounting pipe 31 connected to braking structure 4. The methyl bromide gas accumulated in mounting pipe 31 compresses sliding pipe 33 to slide upward, and then sliding pipe 33 compresses movable top cover 23 upward along connecting piston 34. Methyl bromide gas is released into fruit tray 21 and tray frame 22 through sliding pipe 33 to fumigate the fruit on fruit tray 21. Due to the relatively large molecular mass of methyl bromide gas, it preferentially accumulates at the bottom of fruit tray 21, gradually gathers upward, and finally flows into outer casing 1 through the gap between tray frame 22 and movable top cover 23, achieving the effect of fumigating the fruit on fruit tray 21, and thus completing the purpose of removing bacteria from the fruit.
[0030] like Figure 3 As shown, the fruit tray 21 has symmetrically distributed support frames 24 installed on its lower side, and symmetrically distributed support bars 25 installed inside the outer casing 1. The support frames 24 and support bars 25 slide together. The fruit tray 21 has an array of arc-shaped grooves. It should be noted that the arc-shaped grooves on the fruit tray 21 are used to place fruit. Since the bottom of the fruit cannot perfectly fit the arc-shaped grooves, it is ensured that the bottom of the fruit is fumigated after the methyl bromide gas enters the fruit tray 21. The support frames 24 and support bars 25 at the bottom of the fruit tray 21 cooperate to allow the tray structure 2 to slide inside the outer casing 1, thereby reducing the force required for workers to load and unload the tray structure 2.
[0031] like Figure 4 and 5As shown, a return spring 35 is provided around the sliding tube 33 between the sliding tube 33 and the fruit tray 21. A circumferentially arrayed array of air vents 38 is provided inside the sliding tube 33. A limit slider 36 is installed inside the sliding tube 33, and a limit rod 37 is slidably connected through the limit slider 36. The limit rod 37 is installed inside the mounting tube 31, which is connected to a connecting tube 32. The sliding tube 33 is press-fitted with the movable top cover 23, and the sliding tube 33 is connected to the mounting tube 31. It should be noted that, through the circumferentially arrayed array of air vents 38 on the sliding tube 33, when the amount of methyl bromide gas in the mounting tube 31 increases, it enters the sliding tube 33. Because the sliding tube 33 is tightly attached to the mounting tube 31, the gas inside the sliding tube 33 cannot flow out through the air vents 38, and the accumulated methyl bromide gas pushes the sliding tube 33 upwards. When the sliding tube 33 slides upward along the connecting piston 34 until it is in contact with the movable top cover 23, it pushes the movable top cover 23 upward a certain distance. At this time, the air outlet 38 is connected to the outside of the mounting tube 31, and the accumulated bromomethane gas flows into the fruit tray 21. When the accumulated bromomethane gas is insufficient to push the sliding tube 33, the sliding tube 33 slides downward to reset under the tension of the return spring 35, thus forming the up-and-down reciprocating sliding of the sliding tube 33, which drives the movable top cover 23 to slide up and down. At the same time, bromomethane gas is intermittently input into the fruit tray 21 and the tray frame 22. Since the bromomethane gas has a relatively large molecular mass, as the amount of bromomethane increases, the remaining gas in the fruit tray 21 and the tray frame 22 is squeezed outward through the up-and-down reciprocating sliding of the movable top cover 23, thus ensuring the full fumigation effect of the fruit.
[0032] like Figure 6As shown, the braking structure 4 includes an array of air intake pipes 41 installed inside the outer casing 1. A connecting piston 42 is slidably connected inside the air intake pipes 41. The connecting piston 42 has circumferentially arrayed connecting holes 43. The connecting piston 42 communicates with the air intake pipes 41 and is in a pressing fit with the connecting pipe 32. A mounting bracket 44 is installed on the air intake pipes 41, and a brake slider 45 is slidably connected to the mounting bracket 44. A brake spring 46 is provided between the brake slider 45 and the mounting bracket 44. The brake slider 45 is in a pressing fit with the connecting piston 42, and the connecting piston 42 is in a pressing fit with the connecting pipe 32. It should be noted that since the air intake pipes 41 are filled with methyl bromide gas, there is a continuous upward pressing force on the connecting piston 42. At the same time, the brake slider 45 restricts the connection between the piston and the connecting pipe 32. The height of the plug 42 is adjusted to ensure that the connecting hole 43 cannot be connected to the outside of the air intake pipe 41. When the tray structure 2 is placed inside the outer casing 1, the connecting pipe 32 is aligned with the air intake pipe 41. The connecting pipe 32 then squeezes the connecting piston 42, causing the connecting piston 42 to slide downward. At the same time, the connecting pipe 32 squeezes the brake slider 45. When the connecting pipe 32 is aligned with the air intake pipe 41, the connecting piston 42 slides into the connecting pipe 32, thereby connecting the connecting pipe 32 and the air intake pipe 41 through the connecting hole 43. When the connecting pipe 32 slides out of the outer casing 1, it squeezes the connecting piston 42 to slide downward. The brake slider 45 returns to its original position under the elastic force of the brake spring 46 as the connecting pipe 32 slides, thereby limiting the height of the connecting piston 42 again and resealing the air intake pipe 41.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A fruit fumigation and preservation device, comprising an outer casing (1), wherein an array of tray structures (2) are slidably connected within the outer casing (1), a pneumatic device (3) is installed within the tray structures (2), and a braking structure (4) corresponding to the pneumatic device (3) is installed within the outer casing (1), characterized in that: in, The tray structure (2) includes a fruit tray (21), a tray frame (22) is installed on the fruit tray (21), and a movable top cover (23) is slidably connected to the tray frame (22). The pneumatic device (3) includes mounting tubes (31) arranged in a circumferential array on a fruit tray (21), a sliding tube (33) slidably connected inside the mounting tube (31), a connecting piston (34) slidably connected inside the sliding tube (33), and the connecting piston (34) fixedly connected to the movable top cover (23).
2. The fruit fumigation and preservation device according to claim 1, characterized in that: The fruit tray (21) is equipped with symmetrically distributed support frames (24) on its lower side, and symmetrically distributed support bars (25) are installed inside the outer shell (1). The support frames (24) and support bars (25) are slidably engaged, and the fruit tray (21) is provided with an array of arc-shaped grooves.
3. The fruit fumigation and preservation device according to claim 1, characterized in that: A reset spring (35) is provided around the sliding tube (33) and the fruit tray (21). The sliding tube (33) has vent holes (38) arranged in a circumferential array. A limit slider (36) is installed in the sliding tube (33). A limit rod (37) is slidably connected through the limit slider (36). The limit rod (37) is installed in the mounting tube (31). The mounting tube (31) is connected to a connecting tube (32).
4. The fruit fumigation and preservation device according to claim 3, characterized in that: The sliding tube (33) is pressed together with the movable top cover (23), and the sliding tube (33) is connected to the mounting tube (31).
5. The fruit fumigation and preservation device according to claim 1, characterized in that: The braking structure (4) includes an air intake pipe (41) arrayed inside the outer casing (1). A connecting piston (42) is slidably connected inside the air intake pipe (41). A connecting hole (43) is provided on the connecting piston (42) in a circumferential array. The connecting piston (42) is connected to the air intake pipe (41). The connecting piston (42) and the connecting pipe (32) are pressed together.
6. The fruit fumigation and preservation device according to claim 5, characterized in that: An mounting bracket (44) is installed on the air intake pipe (41). A brake slider (45) is slidably connected on the mounting bracket (44). A brake spring (46) is provided between the brake slider (45) and the mounting bracket (44). The brake slider (45) is pressed into the connecting piston (42). The connecting piston (42) is pressed into the connecting pipe (32).