Leak-proof walnut oil storage device

By combining the protective cover with the gas cylinder and using reinforcing components, the problem of decreased sealing performance in walnut oil storage devices has been solved, achieving a highly efficient sealing effect, reducing the risk of oxidation and deterioration, and making it suitable for the storage and transportation of walnut oil.

CN224492307UActive Publication Date: 2026-07-14WALNUT RES INST OF LONGNAN ECONOMIC FOREST RES INST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WALNUT RES INST OF LONGNAN ECONOMIC FOREST RES INST
Filing Date
2025-08-13
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The sealing performance of walnut oil storage devices deteriorates, allowing air and moisture to enter and promoting the oxidation and deterioration of walnut oil.

Method used

The design combines a protective cover with an air cylinder, using a sealing airbag and rubber gasket to form a redundant seal. The airbag expansion is controlled by the air nozzle and piston rod to seal the feed pipe. Reinforcement components are used to improve connection stability, and a one-way ring and spring structure are used to ensure the sealing of the discharge pipe.

Benefits of technology

It effectively reduces the risk of oxidation and spoilage, improves the sealing performance of storage tanks, is suitable for frequent opening and closing and transportation scenarios, and meets the needs of food preservation.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a kind of leakage-proof walnut oil storage devices, specifically related to storage equipment field, including the storage tank of storing walnut oil, the feed pipe of being located at the top of storage tank and the discharge pipe with valve of being located at the bottom of storage tank, the outer surface of feed pipe is threadedly connected with protective cover, the inner top surface of protective cover is fixedly installed with gas cylinder. The utility model discloses a kind of leakage-proof walnut oil storage devices, by the thread inside protective cover, it is threadedly connected with the feed pipe of storage tank, gas cylinder and sealed air bag will be inserted into the inside of feed pipe by chance, manually push pusher to descend, make piston move towards the inner bottom of gas cylinder, the air in gas cylinder will enter sealed air bag by gas nozzle, make it swell, to seal feed pipe, to effectively improve the sealing performance of storage tank, effectively reduce the possibility that walnut oil is oxidized and deteriorated due to air and moisture into storage tank.
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Description

Technical Field

[0001] This utility model relates to the field of storage equipment, and in particular to a leak-proof walnut oil storage device. Background Technology

[0002] Walnuts have an oil content as high as 65% to 70%. Walnut oil is a natural fruit oil extracted from high-quality walnuts using special processing techniques.

[0003] Walnut oil storage devices typically use single-layer threaded caps for sealing the oil inlet. However, these threads wear down over time, reducing their sealing performance and allowing air and moisture to enter the storage device. Walnut oil is rich in polyunsaturated fatty acids (such as linoleic acid and α-linolenic acid), which are highly susceptible to oxidation. If the seal is not tight, oxygen infiltration promotes free radical generation, leading to rancidity (manifested as a rancid smell and darkening of color). Moisture infiltration can also trigger hydrolysis, accelerating spoilage. Therefore, to address these shortcomings, the inventors propose a leak-proof walnut oil storage device. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a leak-proof walnut oil storage device, which can effectively improve the sealing performance of the storage tank and effectively reduce the possibility of walnut oil oxidation and deterioration caused by air and moisture entering the storage tank.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A leak-proof walnut oil storage device includes a storage tank for storing walnut oil, an inlet pipe located at the top of the storage tank, and an outlet pipe with a valve located at the bottom of the storage tank. A protective cover is threaded onto the outer surface of the inlet pipe, and an air supply cylinder is fixedly installed on the inner top surface of the protective cover. A sealing airbag is fixedly installed on the outer surface of the air supply cylinder, and an air supply nozzle is fixedly connected between the air supply cylinder and the sealing airbag. A piston rod is slidably connected inside the air supply cylinder, and a piston is fixedly installed at one end of the piston rod inside the air supply cylinder.

[0007] Preferably, an air inlet pipe is fixedly installed on the outer bottom surface of the air cylinder, and a fixed cover is threadedly connected to the outer surface of the air inlet pipe. A rubber pad is fixedly installed at the bottom of the protective cover, and two limiting blocks are rotatably connected to the top surface of the protective cover. The top end of the piston rod extends to the outside of the protective cover and is fixedly installed with a push plate. Two limiting holes are opened on the top surface of the push plate.

[0008] Preferably, the top surface of the storage tank is provided with two reinforcing components. The reinforcing components include a fixing rod fixedly installed on the top surface of the storage tank. A baffle is rotatably connected to the outer surface of the fixing rod, and a support hole is provided on one side of the top surface of the baffle.

[0009] Preferably, a connecting plate is slidably connected to one side of the outer surface of the fixing rod, and a support block matching the support hole is fixedly installed on the bottom surface of the connecting plate. A first spring is fixedly connected between the top surface of the fixing rod and the top surface of the connecting plate, and the first spring is sleeved on the outer end of the fixing rod. A dustproof cloth sleeve is fixedly connected between the top surface of the fixing rod and the top surface of the connecting plate, and the dustproof cloth sleeve is sleeved on the outer end of the first spring.

[0010] Preferably, a one-way ring is fixedly installed on the inner wall of the discharge pipe. The bottom surface of the one-way ring has two connecting holes, and a second spring is fixedly installed inside each of the two connecting holes. A connecting rod is slidably connected inside each of the two connecting holes, and the two second springs are respectively sleeved on the outer ends of the two connecting rods and fixedly connected to the top surfaces of the two connecting rods.

[0011] Preferably, the bottom ends of both connecting rods extend to the outer ends of the two connecting holes and are jointly fixedly installed with sealing plates.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This utility model discloses a leak-proof walnut oil storage device. By providing a protective cover and its internal threads, it connects to the feed pipe of the storage tank. An air pump and a sealing airbag are then inserted into the feed pipe. Manually pushing a push plate lowers the piston, moving it towards the bottom of the air pump. Air from the air pump then enters the sealing airbag through the air inlet, causing it to expand and seal the feed pipe. This solves the leakage problem caused by wear in traditional threaded covers. The rubber gasket (static seal) and the inflatable airbag (dynamic seal) form a redundant design, reducing the risk of oxidation. By blocking oxygen and moisture penetration, it effectively delays the oxidative rancidity of walnut oil, meeting food preservation requirements. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the protective cover of this utility model;

[0017] Figure 3 This is a top view of the protective cover structure of this utility model;

[0018] Figure 4 This is a side view of the storage tank structure of this utility model;

[0019] Figure 5 For the present utility model Figure 4 Enlarged view of section A in the middle;

[0020] Figure 6 This is a schematic diagram of the baffle structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the discharge pipe structure of this utility model;

[0022] Figure 8 For the present utility model Figure 7 Enlarged view of section B in the middle.

[0023] In the diagram: 1. Storage tank; 2. Protective cover; 3. Feed pipe; 4. Discharge pipe; 201. Rubber pad; 202. Air cylinder; 203. Sealing airbag; 204. Air nozzle; 205. Piston rod; 206. Piston; 207. Air inlet pipe; 208. Fixed cover; 2051. Push plate; 2052. Limiting hole; 2053. Limiting block; 101. Fixed rod; 102. Baffle; 103. First spring; 104. Dustproof cloth cover; 105. Connecting plate; 106. Support block; 1021. Support hole; 401. One-way ring; 402. Connecting hole; 403. Second spring; 404. Sealing plate; 405. Connecting rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model discloses a leak-proof walnut oil storage device, such as... Figure 1-8 As shown, the storage tank 1 for storing walnut oil includes an inlet pipe 3 located at the top of the storage tank 1 and an outlet pipe 4 with a valve located at the bottom of the storage tank 1. Walnut oil from the outside can enter the storage tank 1 through the inlet pipe 3 for storage, and the walnut oil that has entered the storage tank 1 can be discharged and used by opening the valve of the outlet pipe 4.

[0026] To improve the sealing performance between the protective cover 2 and the feed pipe 3, a protective cover 2 is threaded onto the outer surface of the feed pipe 3. An air supply cylinder 202 is fixedly installed on the inner top surface of the protective cover 2. A sealing airbag 203 is fixedly installed on the outer surface of the air supply cylinder 202. An air supply nozzle 204 is fixedly connected between the air supply cylinder 202 and the sealing airbag 203. A piston rod 205 is slidably connected inside the air supply cylinder 202. A piston 206 is fixedly installed at one end of the piston rod 205 inside the air supply cylinder 202. When the piston rod 205 moves, it will drive the piston 206 to move.

[0027] When the piston 206 moves toward the inner bottom of the air cylinder 202, the air inside the air cylinder 202 can be delivered to the sealing airbag 203 through the air inlet 204, causing the sealing airbag 203 to expand. The expanded sealing airbag 203 will then stick tightly to the inner wall of the feed pipe 3, thereby improving the sealing performance between the protective cover 2 and the feed pipe 3.

[0028] An air inlet pipe 207 is fixedly installed on the outer bottom surface of the air cylinder 202, and a fixing cover 208 is threadedly connected to the outer surface of the air inlet pipe 207. Before threading the protective cover 2 to the feed pipe 3, first open the fixing cover 208 and pull the piston rod 205 to move the piston 206 towards the inner top of the air cylinder 202, so that external air enters the air cylinder 202 through the air inlet pipe 207. Then thread the fixing cover 208 to the air inlet pipe 207, and then the protective cover 2 can be connected to the feed pipe 3.

[0029] A rubber pad 201 is fixedly installed at the bottom of the protective cover 2. When the protective cover 2 is threadedly connected to the feed pipe 3, the rubber pad 201 will be tightly attached to the outer top surface of the storage tank 1. The rubber pad 201 can improve the sealing performance between the protective cover 2 and the outer top surface of the storage tank 1.

[0030] Two limiting blocks 2053 are rotatably connected to the top surface of the protective cover 2. The top end of the piston rod 205 extends to the outside of the protective cover 2 and is fixedly mounted with a push plate 2051. Two limiting holes 2052 are opened on the top surface of the push plate 2051. When the operator manually pushes the push plate 2051 down to move the piston 206, the two limiting blocks 2053 will pass through the two limiting holes 2052. Then, the two limiting blocks 2053 are manually rotated so that they do not coincide with the two limiting holes 2052, thus effectively preventing the piston rod 205 from being accidentally raised due to accidental contact with the push plate 2051. Pressing down the push plate will trigger the airbag to inflate, without the need for additional tools, making it suitable for daily use scenarios with frequent opening and closing. The limiting blocks and limiting holes cooperate to fix the position of the push plate and prevent accidental loosening.

[0031] To increase the stability of the protective cover 2 connection, the top surface of the storage tank 1 is equipped with two reinforcing components. Each reinforcing component includes a fixing rod 101 fixedly installed on the top surface of the storage tank 1. A baffle 102 is rotatably connected to the outer surface of the fixing rod 101. The baffle 102 is rotatably connected to the fixing rod 101 via a bearing and can rotate around the fixing rod 101. A support hole 1021 is provided on one side of the top surface of the baffle 102. After the protective cover 2 is threadedly connected to the feed pipe 3, the baffle 102 can be manually rotated to rotate one side of the baffle 102 above and into contact with the protruding part at the bottom of the protective cover 2. This effectively prevents the protective cover 2 from rising along the feed pipe 3 due to loosening, thus increasing the stability of the protective cover 2 connection. The reinforcement components are designed to meet the requirements of transportation scenarios.

[0032] A connecting plate 105 is slidably connected to one side of the outer surface of the fixing rod 101, and a support block 106 matching the support hole 1021 is fixedly installed on the bottom surface of the connecting plate 105. A first spring 103 is fixedly connected between the top surface of the fixing rod 101 and the top surface of the connecting plate 105, and the first spring 103 is sleeved on the outer end of the fixing rod 101. A dustproof cloth cover 104 is fixedly connected between the top surface of the fixing rod 101 and the top surface of the connecting plate 105, and the dustproof cloth cover 104 is sleeved on the outer end of the first spring 103. The dustproof cloth cover 104 can effectively reduce dust or impurities entering the gap of the first spring 103, such as those in the process.

[0033] When one side of the baffle 102 rotates to above the protruding part at the bottom of the protective cover 2, the connecting plate 105 can be lowered to contact the top surface of the baffle 102 by the elasticity of the first spring 103, and then the support block 106 will be inserted into the support hole 1021 on the top surface of the baffle 102 to fix the rotated baffle 102.

[0034] A one-way ring 401 is fixedly installed on the inner wall of the discharge pipe 4. Two connecting holes 402 are opened on the bottom surface of the one-way ring 401, and a second spring 403 is fixedly installed inside the two connecting holes 402. A connecting rod 405 is slidably connected inside the two connecting holes 402, and the two second springs 403 are respectively sleeved on the outer ends of the two connecting rods 405 and fixedly connected to the top surface of the two connecting rods 405.

[0035] The bottom ends of the two connecting rods 405 extend to the outer ends of the two connecting holes 402 and are fixedly installed with a sealing plate 404. When the valve of the discharge pipe 4 is opened to discharge oil, the walnut oil will enter the discharge pipe 4 and fall onto the top surface of the sealing plate 404, which will cause the connecting rods 405 to descend and squeeze the second spring 403. The stiffness of the second spring 403 can be determined through reasonable experiments, and the walnut oil will be discharged through the gap between the sealing plate 404 and the one-way ring 401.

[0036] All of the above-mentioned components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0037] The specific models and specifications of components such as the first spring 103, the second spring 403, and the sealing airbag 203 proposed in this application need to be selected and determined according to the actual specifications of the device. The specific selection calculation method and connection method all adopt the existing technology in this field, so they will not be described in detail here.

[0038] The various embodiments in this specification are described in a related manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A leak-proof walnut oil storage device, comprising a storage tank (1) for storing walnut oil, an inlet pipe (3) disposed at the top of the storage tank (1), and an outlet pipe (4) with a valve disposed at the bottom of the storage tank (1), characterized in that: The outer surface of the feed pipe (3) is threaded with a protective cover (2), and an air supply cylinder (202) is fixedly installed on the inner top surface of the protective cover (2). A sealing airbag (203) is fixedly installed on the outer surface of the air supply cylinder (202), and an air supply nozzle (204) is fixedly connected between the air supply cylinder (202) and the sealing airbag (203). A piston rod (205) is slidably connected inside the air supply cylinder (202), and a piston (206) is fixedly installed at one end of the piston rod (205) inside the air supply cylinder (202).

2. The leak-proof walnut oil storage device according to claim 1, characterized in that: An air inlet pipe (207) is fixedly installed on the outer bottom surface of the air cylinder (202), and a fixed cover (208) is threadedly connected to the outer surface of the air inlet pipe (207). A rubber pad (201) is fixedly installed at the bottom of the protective cover (2). Two limiting blocks (2053) are rotatably connected to the top surface of the protective cover (2). The top end of the piston rod (205) extends to the outside of the protective cover (2) and a push plate (2051) is fixedly installed. Two limiting holes (2052) are opened on the top surface of the push plate (2051).

3. The leak-proof walnut oil storage device according to claim 1, characterized in that: The top surface of the storage tank (1) is provided with two reinforcing components. The reinforcing components include a fixing rod (101) fixedly installed on the top surface of the storage tank (1). A baffle (102) is rotatably connected to the outer surface of the fixing rod (101), and a support hole (1021) is opened on one side of the top surface of the baffle (102).

4. The leak-proof walnut oil storage device according to claim 3, characterized in that: A connecting plate (105) is slidably connected to one side of the outer surface of the fixed rod (101), and a support block (106) matching the support hole (1021) is fixedly installed on the bottom surface of the connecting plate (105). A first spring (103) is fixedly connected between the top surface of the fixed rod (101) and the top surface of the connecting plate (105), and the first spring (103) is sleeved on the outer end of the fixed rod (101). A dustproof cloth sleeve (104) is fixedly connected between the top surface of the fixed rod (101) and the top surface of the connecting plate (105), and the dustproof cloth sleeve (104) is sleeved on the outer end of the first spring (103).

5. A leak-proof walnut oil storage device according to claim 1, characterized in that: A one-way ring (401) is fixedly installed on the inner wall of the discharge pipe (4). Two connecting holes (402) are opened on the bottom surface of the one-way ring (401), and a second spring (403) is fixedly installed inside the two connecting holes (402). A connecting rod (405) is slidably connected inside the two connecting holes (402), and the two second springs (403) are respectively sleeved on the outer ends of the two connecting rods (405) and fixedly connected to the top surface of the two connecting rods (405).

6. A leak-proof walnut oil storage device according to claim 5, characterized in that: The bottom ends of the two connecting rods (405) extend to the outer ends of the two connecting holes (402) and are jointly fixedly installed with sealing plates (404).