Dropper for grain and oil product fatty acid value detection reagent

Abstract

The utility model relates to the technical field of grain and oil agricultural product fatty acid value detection, concretely to grain and oil agricultural product fatty acid value detection reagent dropwise adding device, including siphon assembly and sealing assembly, siphon assembly is by storage tube, dropping tube, micro siphon passage, check valve and reflux passage constitute, one end of storage tube is fixedly connected with dropping tube, one end edge of dropping tube is fixedly connected with one end of micro siphon passage with check valve. The grain and oil agricultural product fatty acid value detection reagent dropwise adding device, through the setting of storage tube, dropping tube, micro siphon passage, check valve and reflux passage, when the liquid in storage tube drops under the control of staff, the end of dropping tube may hang liquid, and the end of negative pressure will carry out reverse siphon to the liquid hanging through the micro siphon passage of dropping tube edge, let the liquid hanging be absorbed into the micro siphon passage, and the liquid will reflux to the storage tube along the reflux passage through check valve.

Description

Technical Field

[0001] This utility model relates to the field of fatty acid value detection technology for grain and oil agricultural products, specifically to a reagent dropper for detecting fatty acid value of grain and oil agricultural products. Background Technology

[0002] The fatty acid value test reagent dropper for grains and oils is a specialized device used in experiments to accurately control the dropping speed and amount of acid-base titration reagents (such as potassium hydroxide-ethanol standard solution) in the testing of fatty acid values ​​of grains and oils (such as wheat, corn, soybeans, etc.).

[0003] However, existing reagent dispensers for testing the fatty acid value of grains and oils have the following drawbacks:

[0004] (1) Existing reagent dispensers for testing fatty acid value of grain and oil agricultural products have weak anti-leaking function. In grain and oil testing, reagents (such as ethanol solutions) are prone to remain at the dispensing nozzle due to viscosity or surface tension, resulting in liquid residue. If the liquid residue is exposed to the outside environment for a long time, it may become contaminated. When dispensing again, the contaminated liquid residue will fall into the testing equipment, causing poor testing results.

[0005] (2) The existing reagent dispensers for testing fatty acid value of grain and oil agricultural products have weak sealing function. Most of the existing devices use a single negative pressure to extract liquid and drip it. This may cause the internal liquid to be contaminated due to excessive exposure of the device. Utility Model Content

[0006] The purpose of this invention is to provide a reagent dispenser for detecting fatty acid value in grains and oils, in order to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a reagent dispenser for detecting fatty acid value of grain and oil agricultural products, comprising a siphon assembly and a sealing assembly. The siphon assembly consists of a storage tube, a dripping tube, a micro siphon channel, a one-way valve, and a reflux channel. One end of the storage tube is fixedly connected to the dripping tube, and one end of the dripping tube, which has a micro siphon channel at one end, is fixedly connected to the one-way valve. One end of the one-way valve has a reflux channel.

[0008] A sealing assembly is provided, comprising a dripping channel located at the center of one end of a dripping tube, a fixing frame, a spring A, a sealing block, and a sealing groove. The fixing frame is fixedly connected to the inner sidewall edge of the dripping channel, a spring A is fixedly connected to one end edge of the fixing frame, a sealing block is fixedly connected to one end of the spring A, and a sealing groove is provided at one end of the inner sidewall of the dripping channel.

[0009] Preferably, a spring B is fixedly connected to the other edge of the storage tube, and a push rod is fixedly connected to one end of the spring B. When the operator presses the push rod, the push rod compresses the spring B, causing the liquid in the storage tube to drip out.

[0010] Preferably, a push plate is fixedly connected to one end of the push rod, and a rubber ring is fixedly connected to the outer surface of one end of the push plate. The push rod will drive the push plate to push, and the rubber ring on the push plate will improve the sealing between the push plate and the inner wall of the device.

[0011] Preferably, a damper is provided on the inner wall of the spring A, and one end of the damper is fixedly connected to the center of one end of the fixed frame. The damper can stabilize the spring A on the fixed frame to perform directional deformation.

[0012] Preferably, a pushing groove is provided at the center of the other end of the storage tube, and the inner wall of the pushing groove is slidably connected to one end of the outer surface of the push rod, so that the push rod will be pushed along the pushing groove on the storage tube.

[0013] Preferably, a through groove is provided on one side of the outer surface of the storage tube, and an observation window is fixedly connected to the inner wall of the through groove, so that the staff can understand the volume of liquid in the storage tube through the observation window.

[0014] Compared with this device, the beneficial effects of this utility model are:

[0015] 1. This reagent dispenser for testing the fatty acid value of grains and oils uses a storage tube, a dripping tube, a micro siphon channel, a one-way valve, and a reflux channel. When the operator controls the liquid to drip from the storage tube, liquid may remain at the end of the dripping tube. When the negative pressure ends, the micro siphon channel at the edge of the dripping tube will reverse the flow of liquid, drawing the liquid into the micro siphon channel. The liquid will then flow back into the storage tube through the one-way valve and the reflux channel (the one-way valve only allows liquid to flow in one direction and is not affected by the negative pressure during the dripping process, nor does it allow outside air to enter the storage tube along the reflux channel). This design prevents liquid from remaining at the end of the dripping tube for a long time, thus avoiding contamination during subsequent dripping and aspiration.

[0016] 2. This fatty acid value testing reagent dispenser for grains and oils uses a drip tube, drip channel, fixing frame, spring A, sealing block, and sealing groove. When the operator collects liquid, pressing the push rod creates negative pressure inside the storage tube, which simultaneously pushes the sealing block and sealing groove to separate, creating a gap. The liquid then enters the storage tube through this gap. After the negative pressure disappears, the internal and external air pressures of the device are balanced, and the sealing block is pushed back into the sealing groove by spring A to seal the liquid. When the operator drips liquid, the sealing block exerts force on the sealing groove again, causing spring A to deform and allowing the liquid to drip out along the gap. This design provides enhanced sealing for the liquid inside the device. Furthermore, the dual damping design allows for more precise dripping. Attached Figure Description

[0017] Figure 1 This is the front view of the present invention;

[0018] Figure 2 This is a schematic diagram of the storage tube of this utility model;

[0019] Figure 3 This is a schematic diagram of the miniature siphon channel of this utility model;

[0020] Figure 4 This is a schematic diagram of the push plate of this utility model.

[0021] In the diagram: 1. Siphon assembly; 101. Storage tube; 102. Dropping tube; 103. Miniature siphon channel; 104. One-way valve; 105. Return channel; 2. Sealing assembly; 201. Dropping channel; 202. Fixing bracket; 203. Spring A; 204. Sealing block; 205. Sealing groove; 3. Spring B; 4. Push rod; 5. Push plate; 6. Rubber ring; 7. Damper; 8. Observation window. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4As shown, this utility model provides a technical solution: a reagent dispenser for testing the fatty acid value of grain and oil agricultural products, including a siphon assembly 1 and a sealing assembly 2. The siphon assembly 1 consists of a storage tube 101, a dripping tube 102, a micro siphon channel 103, a one-way valve 104, and a return channel 105. One end of the storage tube 101 is fixedly connected to the dripping tube 102. One end of the dripping tube 102 has a micro siphon channel 103, and one end of the dripping tube 102 is fixedly connected to the one-way valve 104. One end of the one-way valve 104 has a return channel 105. Through the arrangement of the storage tube 101, the dripping tube 102, the micro siphon channel 103, the one-way valve 104, and the return channel 105... When the staff controls the liquid to drip out of the storage tube 101, liquid may remain at the end of the drip tube 102. When the negative pressure ends, the liquid will be reversed through the micro siphon channel 103 at the edge of the drip tube 102, so that the liquid is sucked into the micro siphon channel 103. The liquid will flow back into the storage tube 101 through the one-way valve 104 and the return channel 105. The one-way valve 104 only allows the liquid to flow in one direction and is not affected by the negative pressure when the device drips. It also prevents outside air from entering the storage tube 101 through the return channel 105. This setting can prevent the liquid from remaining at the end of the drip tube 102 for a long time, which would cause contamination during subsequent dripping and suction.

[0024] The sealing assembly 2 consists of a dripping channel 201 located at the center of one end of the dripping tube 102, a fixing frame 202, a spring A203, a sealing block 204, and a sealing groove 205. The fixing frame 202 is fixedly connected to the inner edge of the dripping channel 201, and a spring A203 is fixedly connected to one end of the fixing frame 202. A sealing block 204 is fixedly connected to one end of the spring A203. A sealing groove 205 is provided at one end of the inner wall of the dripping channel 201. Through the arrangement of the dripping tube 102, dripping channel 201, fixing frame 202, spring A203, sealing block 204, and sealing groove 205, when the operator collects the liquid... Pressing the push rod 4 creates a negative pressure inside the storage tube 101, which simultaneously pushes the sealing block 204 to separate from the sealing groove 205, creating a gap that allows liquid to enter the storage tube 101 along the gap. After the negative pressure disappears, it balances the air pressure inside and outside the device. At the same time, the sealing block 204 is pushed back into the sealing groove 205 by the spring A203 to seal the liquid. When the operator drips the liquid, the sealing block 204 will exert force on the sealing groove 205 again, causing the spring A203 to deform and allowing the liquid to drip out along the gap. This design can provide a stronger seal for the liquid inside the device. At the same time, the dual damping design allows for more precise dripping.

[0025] A spring B3 is fixedly connected to the other end edge of the storage tube 101, and a push rod 4 is fixedly connected to one end of the spring B3. With the arrangement of the storage tube 101, the spring B3 and the push rod 4, when in use, the operator presses the push rod 4 to compress the spring B3, causing the liquid in the storage tube 101 to drip out.

[0026] A push plate 5 is fixedly connected to one end of the push rod 4, and a rubber ring 6 is fixedly connected to the outer surface of one end of the push plate 5. With the push rod 4, the push plate 5 and the rubber ring 6, the push rod 4 will drive the push plate 5 to push during use, and the rubber ring 6 on the push plate 5 will improve the sealing between the push plate 5 and the inner wall of the device.

[0027] A damper 7 is provided on the inner wall of the spring A203. One end of the damper 7 is fixedly connected to the center of one end of the fixed frame 202. Through the arrangement of the spring A203, the damper 7 and the fixed frame 202, the damper 7 can stabilize the spring A203 on the fixed frame 202 to perform directional deformation during use.

[0028] A push groove is provided at the center of the other end of the storage tube 101. The inner wall of the push groove is slidably connected to one end of the outer surface of the push rod 4. With the storage tube 101 and the push rod 4, the push rod 4 will be pushed along the push groove on the storage tube 101 during use.

[0029] A through groove is provided on one side of the outer surface of the storage tube 101, and an observation window 8 is fixedly connected to the inner wall of the through groove. With the setting of the storage tube 101 and the observation window 8, the staff can understand the volume of liquid in the storage tube 101 through the observation window 8 during use.

[0030] In this invention, the working steps of the device are as follows:

[0031] First step: When the staff takes liquid, press the push rod 4 to create a negative pressure in the storage tube 101. At the same time, it will push the sealing block 204 to separate from the sealing groove 205 to create a gap, allowing the liquid to enter the storage tube 101 along the gap. After the negative pressure disappears, it will balance the air pressure inside and outside the device. At the same time, the sealing block 204 will be pushed back into the sealing groove 205 by the spring A203 to seal the liquid.

[0032] The second step: When the staff drips the liquid, the sealing block 204 will exert force on the sealing groove 205 again, causing the spring A203 to deform and the liquid to drip out along the gap.

[0033] Third step: When the staff controls the liquid to drip out of the storage tube 101, liquid may be left on the end of the drip tube 102. When the negative pressure ends, the liquid will be reversed through the micro siphon channel 103 at the edge of the drip tube 102, so that the liquid is sucked into the micro siphon channel 103. The liquid will flow back into the storage tube 101 through the one-way valve 104 and along the return channel 105.

[0034] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0035] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

Claims

1. A reagent dispenser for testing fatty acid value of grain and oil agricultural products, comprising a siphon assembly (1) and a sealing assembly (2), characterized in that: The siphon assembly (1) consists of a storage tube (101), a drip tube (102), a micro siphon channel (103), a one-way valve (104), and a return channel (105). One end of the storage tube (101) is fixedly connected to the drip tube (102). One end of the drip tube (102) is provided with a micro siphon channel (103), and one end of the drip tube (102) is fixedly connected to the one-way valve (104). One end of the one-way valve (104) is provided with a return channel (105). The sealing assembly (2) consists of a dripping channel (201) opened at the center of one end of the dripping tube (102), a fixing frame (202), a spring A (203), a sealing block (204), and a sealing groove (205). The fixing frame (202) is fixedly connected to the inner sidewall edge of the dripping channel (201), and the spring A (203) is fixedly connected to one end edge of the fixing frame (202). The sealing block (204) is fixedly connected to one end of the spring A (203), and a sealing groove (205) is opened at one end of the inner sidewall of the dripping channel (201).

2. The dropper for detecting fatty acid value of grain and oil agricultural products according to claim 1, characterized in that: A spring B (3) is fixedly connected to the other end edge of the storage tube (101), and a push rod (4) is fixedly connected to one end of the spring B (3).

3. The dropper for detecting fatty acid value of grain and oil agricultural products according to claim 2, characterized in that: One end of the push rod (4) is fixedly connected to a push plate (5), and a rubber ring (6) is fixedly connected to the outer surface of one end of the push plate (5).

4. The dropper for detecting fatty acid value of grain and oil agricultural products according to claim 1, characterized in that: The inner wall of the spring A (203) is provided with a damper (7), and one end of the damper (7) is fixedly connected to the center of one end of the fixing frame (202).

5. The dropper for detecting fatty acid value of grain and oil agricultural products according to claim 1, characterized in that: The storage tube (101) has a push groove at the center of the other end, and the inner wall of the push groove is slidably connected to one end of the outer surface of the push rod (4).

6. The dropper for detecting fatty acid value of grain and oil agricultural products according to claim 1, characterized in that: A through groove is provided on one side of the outer surface of the storage tube (101), and an observation window (8) is fixedly connected to the inner wall of the through groove.

Images