Food analysis, detection and cleaning device

Abstract

The invention relates to a food analysis, detection and cleaning device which comprises a cleaning box body, bearing plates are vertically and movably connected to the two sides of the cleaning box body, a containing box is rotationally connected between the two bearing plates, a turnover mechanism used for rotating the containing box is arranged in the bearing plate on one side, and a hollow disc is arranged below the cleaning box body. A plurality of spray needles are uniformly and fixedly arranged at the top of the hollow disc at intervals, sprayers are rotatably connected to the tops of the spray needles and can be driven by fluid sprayed by the spray needles to rotate, and the two sides of the bottom of the hollow disc are connected with a water source and a gas cylinder through a first connecting pipe and a second connecting pipe. A spray needle and a spray head at the top of the spray needle extend into a bottle from a bottle opening, high-pressure fluid sprayed by a tangentially inclined spray nozzle drives the spray head to rotate at a high speed, and after the sunken part of the bottom of the bottle and the periphery of the wall of the bottle are thoroughly washed, cleaned and cleaned, dry gas is switched to drive the spray head to continuously rotate for blowing, liquid in the bottle is thoroughly blown away and discharged, and the two modes are combined; and the cleaning and subsequent drying effects on the small sample injection bottle are improved.

Description

Technical Field

[0001] This invention relates to the field of food testing and cleaning equipment technology, and in particular to a food analysis and testing cleaning device. Background Technology

[0002] In the field of food safety analysis and testing, vials are core consumables for precision analytical instruments such as gas chromatography and liquid chromatography, and their cleanliness directly affects the accuracy and reproducibility of analytical results. Due to their small size, narrow opening, and recessed bottom, vials often retain high-boiling-point, non-volatile, or highly adsorbent sample matrices. Therefore, thorough cleaning of vials is crucial for the accuracy of food testing and analysis results.

[0003] Traditional manual cleaning methods, such as brushing or soaking in batches, are not only labor-intensive but also inefficient. Most cleaning devices for sample vials on the market use fixed spray pipes or simple insertion-type liquid injection structures, with a single water flow direction and limited flushing force on the vial walls, affecting the cleaning effect. Furthermore, after cleaning, the liquid is drained naturally by gravity. Due to the extremely small opening and concave bottom of the sample vials, the water inside is not easily drained due to the surface tension of the water, affecting the subsequent drying process of the sample vials. Based on this, a food analysis and testing cleaning device is proposed. Summary of the Invention

[0004] This invention provides a food analysis and testing cleaning device to solve the problems mentioned in the above-mentioned technical background. Existing cleaning devices for sample vials mostly use fixed spray pipes or simple insertion-type liquid injection structures, with a single water flow direction, limited flushing and cleaning effect on the vial wall, and after cleaning, they rely solely on gravity for natural drainage. Due to the extremely small mouth and concave bottom of the sample vial, the water inside the vial is not easily drained under the action of water surface tension, which affects the subsequent drying process of the sample vial.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a food analysis and testing cleaning device, comprising a cleaning chamber, wherein a support plate is vertically movable on both sides of the cleaning chamber, and a placement box is rotatably connected between the two support plates. The placement box is used to hold sample vials. A flipping mechanism for rotating the placement box is provided in one side of the support plate. A hollow disk is provided below the cleaning chamber. A plurality of spray needles are evenly spaced and fixed on the top of the hollow disk. The bottom end of the spray needle is connected to the internal cavity of the hollow disk. A nozzle is rotatably connected to the top of the spray needle. The nozzle can be driven to rotate by the fluid sprayed from the spray needle. A first connecting pipe is fixedly connected to one side of the bottom of the hollow disk. The first connecting pipe is sealed to a water source. A second connecting pipe is fixedly connected to the other side of the bottom of the hollow disk. A gas cylinder is fixedly provided on one outer wall of the cleaning chamber. The second connecting pipe passes through the cleaning chamber and is connected to the gas cylinder.

[0006] Preferably, the placement box is provided with a plurality of positioning holes for accommodating sample vials, and the positioning holes are configured one-to-one with the spray needles.

[0007] Preferably, the nozzle is rotatably connected to the tip of the nozzle needle via a micro-bearing, the outer ring of the micro-bearing is fixed to the nozzle needle, and the inner ring of the micro-bearing is fixedly connected to the outer wall of the nozzle.

[0008] Preferably, a plurality of first nozzles are fixedly provided circumferentially on the sidewall of the nozzle, the first nozzles are inclined along the tangential direction of the outer circumferential sidewall of the nozzle, and the inclination direction of the first nozzles is consistent.

[0009] Preferably, two or three tangentially inclined first nozzles are evenly arranged circumferentially on the side wall of the nozzle, and the axis of the tangentially inclined first nozzles forms a downward angle of 5° to 10° with the horizontal plane.

[0010] Preferably, the top of the nozzle is provided with a second nozzle that is vertically upward or inclined upward, for impacting the bottom recess of the sample vial.

[0011] Preferably, the flipping mechanism includes a receiving groove formed in the support plate, a rotating motor is fixedly installed in the receiving groove, the output shaft of the rotating motor is fixedly connected to a rotating shaft, and the rotating shaft is fixedly connected to the side wall of the placement box.

[0012] Preferably, a perforated plate is fixedly provided at the bottom of the cleaning box, and threaded rods are rotatably connected to the top two sides of the perforated plate. Lifting blocks are threadedly connected to the threaded rods, and the lifting blocks are fixedly connected to the side wall of the support plate. Drive motors are fixedly provided on the top two sides of the cleaning box, and the top of the threaded rods is fixedly connected to the output shaft of the drive motor.

[0013] Preferably, a cleaning solution tank is fixedly installed on the top of the cleaning box, a cleaning tray is fixedly installed on the inner wall of the top of the cleaning box, a plurality of injection pipes are evenly fixedly installed on the bottom of the cleaning tray, the top of the injection pipes are connected to the internal cavity of the cleaning tray, the injection pipes are set one-to-one with the positioning holes on the placement box, an infusion pump is fixedly installed on one side of the top of the cleaning box, the inlet pipe of the infusion pump extends through into the cleaning solution tank, and the outlet pipe of the infusion pump is fixedly connected to one side of the top of the cleaning tray.

[0014] The beneficial effects of the food analysis and testing cleaning device of the present invention are as follows: This invention involves inserting a spray needle and its top nozzle into the bottle from the bottle opening. High-pressure fluid ejected from a tangentially inclined first nozzle drives the nozzle to rotate at high speed. The first and second nozzles on the nozzle thoroughly flush and clean the bottle bottom and the surrounding walls, improving cleaning efficiency and uniformity. After cleaning, the nozzle is switched to dry gas to continue rotating and blowing, completely blowing away and expelling the liquid inside the bottle. The combination of these two methods improves the cleanliness of the vials and the subsequent drying efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the connection structure of the hollow disc, spray needle, and nozzle of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a top view of the hollow disk structure of the present invention; Figure 5 This is a top view of the connection structure between the nozzle and the spray head of the present invention; Figure 6 This is a schematic diagram of the connection structure of the placement box of the present invention; Figure 7 This is a top view schematic diagram of the connection structure between the cleaning tray and the injection pipe of the present invention; Figure 8 This is a schematic diagram of the overall front view of the present invention.

[0016] In the diagram: 1. Cleaning box, 2. Support plate, 3. Placement box, 4. Hollow disc, 5. Spray needle, 6. Nozzle, 7. First connecting pipe, 8. Second connecting pipe, 9. Gas cylinder, 10. First nozzle, 11. Second nozzle, 12. Receptacle, 13. Rotating motor, 14. Rotating shaft, 15. Perforated plate, 16. Threaded rod, 17. Lifting block, 18. Drive motor, 19. Cleaning fluid tank, 20. Cleaning tray, 21. Injection pipe, 22. Infusion pump. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] like Figure 1-8As shown, a food analysis and testing cleaning device includes a cleaning chamber 1. A drain pipe with a control valve is located on one side of the bottom of the cleaning chamber 1. Support plates 2 are vertically movable on both sides of the cleaning chamber 1. A placement box 3 is rotatably connected between the two support plates 2. The placement box 3 is used to hold sample vials. A flipping mechanism for rotating the placement box 3 is provided inside one of the support plates 2. A hollow disk 4 is located below the cleaning chamber 1. A plurality of spray needles 5 are evenly spaced and fixed on the top of the hollow disk 4. The bottom ends of the spray needles 5 are flush with the interior of the hollow disk 4. The cavities are interconnected. The top of the spray needle 5 is rotatably connected to the nozzle 6. The nozzle 6 can be rotated by the fluid sprayed from the spray needle 5. A first connecting pipe 7 is fixedly connected to one side of the bottom of the hollow disc 4. The first connecting pipe 7 is sealed to the water source. A second connecting pipe 8 is fixedly connected to the other side of the bottom of the hollow disc 4. A gas cylinder 9 is fixedly installed on one outer wall of the cleaning box 1. A pressure valve is installed on the gas cylinder 9. The second connecting pipe 8 passes through the cleaning box 1 and is connected to the gas cylinder 9. Solenoid valves are fixedly installed on both the first connecting pipe 7 and the second connecting pipe 8.

[0019] The placement box 3 is provided with several positioning holes for accommodating sample vials. The positioning holes are arranged one-to-one with the spray needles 5. The placement box 3 consists of a box body and a box cover. The box body and the box cover are hinged together on one side by a hinge. The opposite side wall is provided with two locking buckles for locking. The box cover is evenly provided with through holes corresponding to the positioning holes. The size of the through holes is adapted to the size of the bottle mouth of the sample vial. When the sample vial to be cleaned is placed in the placement box 3, the bottle mouth of the sample vial corresponds to the through hole on the box cover.

[0020] The nozzle 6 is rotatably connected to the top of the nozzle needle 5 via a miniature bearing. The outer ring of the miniature bearing is fixed to the nozzle needle 5, and the inner ring of the miniature bearing is fixedly connected to the outer wall of the nozzle 6.

[0021] The nozzle 6 has a plurality of first nozzles 10 fixedly arranged on its side wall. The first nozzles 10 are inclined along the tangent direction of the outer side wall of the nozzle 6, and the inclination direction of the first nozzles 10 is consistent.

[0022] When high-pressure water or dry gas enters the internal cavity of the nozzle 6 through the nozzle needle 5, the fluid is ejected at high speed from the tangentially inclined first nozzle 10 opened on the side wall. Since the axis of the first nozzle 10 is tangentially arranged with the radial direction of the nozzle 6, the high-speed ejected fluid exerts a reaction force on the nozzle 6 opposite to the direction of the injection. The direction of this reaction force is along the tangential direction of the circumference of the nozzle 6. Driven by this reaction force, the nozzle 6 rotates continuously and stably around its axis under the support of the miniature bearing. The rotation of the nozzle 6 is driven entirely by the pressure energy of the fluid or gas itself, which makes the nozzle structure extremely simple, compact in size, and able to easily extend into narrow spaces such as sample vials.

[0023] Two or three tangentially inclined first nozzles 10 are evenly arranged circumferentially on the side wall of the nozzle 6, and the axis of the tangentially inclined first nozzles 10 forms a downward angle of 5° to 10° with the horizontal plane.

[0024] The uniform distribution ensures that the reaction forces ejected from each of the first nozzles 10 are balanced on the horizontal plane, avoiding severe vibrations caused by unilateral force. This ensures that the nozzle 6 remains stable during high-speed rotation and will not shake or impact the inner wall of the sample vial. The first nozzles 10 are tilted downwards, and the water flow is directed at a slight downward angle towards the transition area between the bottle wall and the bottle mouth. This allows the water flow to naturally flow towards the bottle mouth, helping to remove the detached dirt from the bottle during the cleaning process, rather than letting it tumble disorderly inside the bottle, thus improving the cleaning effect.

[0025] The nozzle 6 is equipped with a second nozzle 11 that is vertically upward or inclined upward, used to impact the bottom recess of the sample vial. The second nozzle 11 at the top is vertically upward and directly faces the center of the bottom recess of the sample vial, which can directly impact this dead corner in the form of a concentrated jet. It uses the kinetic energy of the water flow to peel off stubborn residues (such as dried protein, salt crystals or pigments) attached to the recess, ensuring that the bottom of the vial is thoroughly cleaned. Combined with the first nozzle 10 on the side, the water flow covers all surfaces inside the vial without dead corners, which significantly improves cleaning efficiency and uniformity.

[0026] The flipping mechanism includes a receiving groove 12 opened in the support plate 2, a rotating motor 13 is fixedly installed in the receiving groove 12, the output shaft of the rotating motor 13 is fixedly connected to a rotating shaft 14, and the rotating shaft 14 is fixedly connected to the side wall of the placement box 3.

[0027] The rotating motor 13 drives the rotating shaft 14 to rotate, and the rotating shaft 14 drives the placement box 3 to flip, switching between the loading state with the bottle mouth facing upward and the cleaning or drainage state with the bottle mouth facing downward. When loading, the bottle mouth faces upward, making it convenient and quick to pick up and put down the bottle. When cleaning, the bottle mouth faces downward, which is conducive to liquid discharge and gas purging.

[0028] A perforated plate 15 is fixedly installed below the cleaning box 1. Threaded rods 16 are rotatably connected to the top two sides of the perforated plate 15. Lifting blocks 17 are threadedly connected to the threaded rods 16. The lifting blocks 17 are fixedly connected to the side wall of the bearing plate 2. Drive motors 18 are fixedly installed on the top two sides of the cleaning box 1. The top of the threaded rods 16 is fixedly connected to the output shaft of the drive motors 18.

[0029] The synchronous start of the two drive motors 18 drives the two threaded rods 16 to rotate synchronously in the same direction, which causes the lifting block 17 on the threaded rod 16 to move the support plate 2 and the placement box 3 up and down. The placement box 3 moves downward to facilitate the insertion of the spray needle 5 and the top nozzle 6 into the sample vial, and the placement box 3 moves upward to separate the two.

[0030] A cleaning solution tank 19 is fixedly installed on the top of the cleaning box 1. A cleaning tray 20 is fixedly installed on the inner wall of the top of the cleaning box 1. A hanging rod is fixedly installed in the middle of the top of the cleaning box 1. The bottom of the hanging rod is fixedly connected to the top of the cleaning tray. A plurality of injection tubes 21 are evenly fixedly installed on the bottom of the cleaning tray 20. The top of the injection tubes 21 are connected to the internal cavity of the cleaning tray 20. The injection tubes 21 are set one-to-one with the positioning holes on the placement box 3. An infusion pump 22 is fixedly installed on one side of the top of the cleaning box 1. The inlet pipe of the infusion pump 22 extends through into the cleaning solution tank 19. The outlet pipe of the infusion pump 22 is fixedly connected to one side of the top of the cleaning tray 20.

[0031] Place the vial to be cleaned into the placement box 3, move the support plate 2 upward, causing the placement box 3 to move upward and the upper injection tube 21 to penetrate into the vial. Start the infusion pump 22 to pump the cleaning solution in the cleaning solution tank 19 into the cleaning tray 20 and inject it into the vial through the injection tube 21. This provides initial soaking and pre-washing of the vial, effectively softening stubborn residues (such as denatured proteins, salt crystals, pigments, etc.) on the inner wall and bottom of the vial, making it easier for subsequent rinsing and cleaning to remove them completely.

[0032] Limiting grooves are provided on the inner walls of both sides of the cleaning box 1. Limiting blocks are fixedly connected to the side walls of the support plate 2. The limiting blocks are slidably connected in the limiting grooves to limit the maximum distance that the support plate 2 can move upward or downward, so as to prevent the placement box 3 on the support plate 2 from moving excessively, causing the sample vial in the placement box 3 to come into excessive contact with the spray needle 5 and the liquid injection tube 21, resulting in damage.

[0033] The cleaning chamber 1 has a sealed door hinged to one side. A control panel is fixed on the sealed door. The control panel is electrically connected to the solenoid valve, the rotary motor 13, the drive motor 18, and the infusion pump 22, which facilitates the operation of the operator.

[0034] In use, place the vial to be cleaned into the placement box 3, lock it after placement, start the drive motor 18 to drive the threaded rod 16 to rotate, so that the lifting block 17 drives the support plate 2 and the placement box 3 to move upward, so that the liquid injection tube 21 at the bottom of the cleaning tray 20 enters the vial. Start the infusion pump 22 to pump the cleaning solution in the cleaning solution tank 19 into the vial, and soak the vial for a certain period of time. After soaking, move the placement box 3 downward to the middle position of the cleaning box 1. The flipping mechanism drives the placement box 3 to flip 180° so that the bottle mouth of the vial is facing down, so that the cleaning solution flows out. Continue to move the placement box downward so that the spray needle 5 and the top nozzle 6 enter the vial. Open the first connecting tube. The solenoid valve on the first connecting pipe 7 allows external water to enter the nozzle 5 and the nozzle 6. Water is then sprayed out by the first nozzle 10 on the side wall and the second nozzle 11 on the top of the nozzle 6. The reaction force generated by the high-speed spray from the first nozzle, which is tangentially inclined on the side wall of the nozzle 6, drives the nozzle 6 to rotate, thereby thoroughly rinsing and cleaning the bottom depression and the surrounding walls of the bottle, improving the cleaning efficiency and uniformity. After cleaning, the solenoid valve on the first connecting pipe 7 closes and the solenoid valve on the second connecting pipe 8 opens, supplying clean air to the nozzle 5 and the nozzle 6 and driving the nozzle 6 to rotate. The rotating airflow performs a comprehensive dynamic sweep of the inner wall of the bottle. Using the dual action of centrifugal force and high-speed airflow, residual water droplets are completely blown away and discharged, facilitating the subsequent drying of the vial.

[0035] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A food analysis and testing cleaning device, comprising a cleaning chamber, characterized in that: The cleaning chamber has vertically movable support plates on both sides, and a placement box is rotatably connected between the two support plates. The placement box is used to hold sample vials. One of the support plates is equipped with a flipping mechanism for rotating the placement box. A hollow disk is provided at the bottom of the cleaning chamber. Several spray needles are evenly spaced and fixed on the top of the hollow disk. The bottom end of the spray needle is connected to the internal cavity of the hollow disk. A nozzle is rotatably connected to the top of the spray needle. The nozzle can be driven to rotate by the fluid sprayed from the spray needle. A first connecting pipe is fixedly connected to one side of the bottom of the hollow disk. The first connecting pipe is sealed to a water source. A second connecting pipe is fixedly connected to the other side of the bottom of the hollow disk. A gas cylinder is fixedly installed on one outer wall of the cleaning chamber. The second connecting pipe passes through the cleaning chamber and is connected to the gas cylinder.

2. The food analysis and testing cleaning device according to claim 1, characterized in that: The placement box is provided with several positioning holes for accommodating sample vials, and each positioning hole is set in a one-to-one correspondence with the spray needle.

3. The food analysis and testing cleaning device according to claim 1, characterized in that: The nozzle is rotatably connected to the top of the nozzle needle via a miniature bearing. The outer ring of the miniature bearing is fixed to the nozzle needle, and the inner ring of the miniature bearing is fixedly connected to the outer wall of the nozzle.

4. The food analysis and testing cleaning device according to claim 3, characterized in that: The nozzle sidewall is fixedly provided with a plurality of first nozzles, which are inclined along the tangential direction of the outer peripheral sidewall of the nozzle, and the inclination direction of the first nozzles is consistent.

5. The food analysis and testing cleaning device according to claim 4, characterized in that: Two or three tangentially inclined first nozzles are evenly arranged circumferentially on the side wall of the nozzle head, and the axis of the tangentially inclined first nozzles forms a downward angle of 5° to 10° with the horizontal plane.

6. The food analysis and testing cleaning device according to claim 5, characterized in that: The top of the nozzle is equipped with a second nozzle that is vertically or obliquely upward, used to impact the concave bottom of the sample vial.

7. The food analysis and testing cleaning device according to claim 1, characterized in that: The flipping mechanism includes a receiving groove formed in the support plate, a rotating motor is fixedly installed in the receiving groove, the output shaft of the rotating motor is fixedly connected to a rotating shaft, and the rotating shaft is fixedly connected to the side wall of the placement box.

8. The food analysis and testing cleaning device according to claim 1, characterized in that: A perforated plate is fixedly installed at the bottom of the cleaning box. Threaded rods are rotatably connected to the top two sides of the perforated plate. Lifting blocks are threadedly connected to the threaded rods. The lifting blocks are fixedly connected to the side wall of the support plate. Drive motors are fixedly installed on the top two sides of the cleaning box. The top of the threaded rods is fixedly connected to the output shaft of the drive motor.

9. The food analysis and testing cleaning device according to claim 1, characterized in that: A cleaning solution tank is fixedly installed on the top of the cleaning box, and a cleaning tray is fixedly installed on the inner wall of the top of the cleaning box. Several injection tubes are evenly fixed on the bottom of the cleaning tray. The top of the injection tubes is connected to the internal cavity of the cleaning tray. The injection tubes are set one-to-one with the positioning holes on the placement box. An infusion pump is fixedly installed on one side of the top of the cleaning box. The inlet pipe of the infusion pump extends through into the cleaning solution tank, and the outlet pipe of the infusion pump is fixedly connected to one side of the top of the cleaning tray.

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