Burette cleaning device for food detection

Abstract

The utility model relates to the technical field of glass instrument cleaning equipment for food detection, and discloses a burette cleaning device for food detection, which comprises a spray pipe and a cleaning table, and the spray pipe is vertically mounted at the upper end of the cleaning table; two spray head groups are arranged on the spray pipe in the axial direction, and a thin spray head is mounted at the top end of the spray pipe; a conical seat is connected to the outer wall, close to the lower end, of the spray pipe in a sleeved mode, and the conical seat comprises a conical base body and a plurality of annular silica gel rings connected to the outer wall of the conical base body in a sleeved mode. The nozzle group and the fine nozzle are matched to carry out targeted flushing on the pipe wall and valve gaps, waste liquid is collected into the filter box through the diversion trench to be filtered and subjected to acid-base neutralization treatment, the cleaning efficiency is effectively improved, cleaning dead corners are eliminated, meanwhile, safe treatment of the waste liquid is achieved, and operators are prevented from making contact with harmful waste liquid.

Description

Technical Field

[0001] This utility model relates to the technical field of glass instrument cleaning equipment for food testing, specifically a burette cleaning device for food testing. Background Technology

[0002] In food testing experiments, burettes are commonly used glass instruments for acid-base titrations, salt content determination, and other tests. Traditional cleaning methods for burettes mainly rely on manual brushing or soaking. Manual brushing requires operators to repeatedly insert a brush into the narrow tube wall, but the brush struggles to reach the narrow gap of the stopcock, and long-term residual solution can crystallize around the stopcock, causing it to jam. Immersion cleaning requires prolonged soaking in cleaning solution, which is time-consuming and requires extensive rinsing with water afterward, making it unsuitable for urgent testing needs. Furthermore, residual strong acids, alkalis, or organic solvents on the inner wall of the burette after use can easily volatilize and emit a pungent odor during pouring. Directly pouring these into a water tank can corrode the pipes. Collecting the waste liquid in a waste container and then transferring it for neutralization is cumbersome and carries the risk of spillage, posing safety hazards and operational inconvenience to laboratory personnel.

[0003] To address the aforementioned issues, this application proposes a burette cleaning device for food testing. Utility Model Content

[0004] The purpose of this invention is to provide a burette cleaning device for food testing, so as to solve the problems of low cleaning efficiency, dead corners, high safety risks of waste liquid treatment, and cumbersome operation in the prior art mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a burette cleaning device for food testing, comprising a spray pipe and a cleaning platform, wherein the spray pipe is vertically installed on the upper end of the cleaning platform; two nozzle groups are arranged axially on the spray pipe, and a fine nozzle is installed at the top of the spray pipe; a conical seat is sleeved on the outer wall near the lower end of the spray pipe, the conical seat comprising a conical base and multiple annular silicone rings sleeved on the outer wall of the conical base, the annular silicone rings being distributed from top to bottom along the axial direction of the conical base; multiple radially distributed guide grooves are formed on the conical surface of the conical base, the guide grooves extending from top to bottom along the axial direction of the conical base; a threaded end is provided on the outer wall at the lower end of the spray pipe, and the threaded end at the lower end of the spray pipe is threadedly connected to an adjusting screw ring, the adjusting screw ring being located at the lower end of the conical seat.

[0006] Preferably, the nozzle assembly consists of multiple nozzles evenly distributed around the circumference of the nozzle tube, with the nozzles spraying in an upward-sloping direction; the fine nozzles spray in a direction toward the valve body and tip of the burette.

[0007] Preferably, the upper end of the cleaning platform is provided with an annular water collection trough, which is located at the connection between the lower end of the spray pipe and the cleaning platform.

[0008] Preferably, the lower end of the spray pipe is connected to a water pump via a pipe, the water pump is installed inside the cleaning platform, and the water inlet end of the water pump is connected to a water inlet pipe.

[0009] Preferably, the bottom of the annular water collection tank is provided with a drain outlet that extends to the inside of the washing platform, and a filter screen is provided at the drain outlet; a filter box is slidably installed on the inside of the washing platform.

[0010] Preferably, the filter box is located directly below the drain outlet, and a handle is installed at the front end of the filter box; a drain pipe is connected to the bottom of the filter box, and the inlet end of the drain pipe is close to the bottom of the filter box.

[0011] Preferably, the inner side of the filter box is provided with a first filter layer and a second filter layer from top to bottom; the first filter layer is a solid impurity interception layer, and the second filter layer is an acid-base neutralization packing layer.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes the elastic deformation of multiple annular silicone rings on the outer wall of a conical substrate to achieve adaptive clamping and automatic centering of burettes of different diameters. Combined with the adjustment of the lifting and lowering of the adjusting screw ring, it can accommodate burettes of different lengths, solving the problems of difficult fixation and inaccurate centering in traditional cleaning methods. It ensures the coaxiality of the spray nozzle and the burette, thereby ensuring that the spray water flow evenly covers the inner wall without dead corners.

[0014] This invention employs two nozzle groups that spray upwards at an angle to form a rotating water curtain that circumferentially flushes the pipe wall. Combined with a fine nozzle, it provides targeted rinsing of the valve body and nozzle tip, achieving targeted cleaning of the entire burette area. This effectively removes residues from valve gaps and nozzle dead corners, significantly improving cleaning efficiency and cleanliness.

[0015] This invention collects waste liquid through a ring-shaped water collection tank. After preliminary filtration through a drain outlet filter screen, the waste liquid enters a filter box. The first filter layer intercepts solid impurities, and the second filter layer contains an acid-base neutralizing agent for neutralization. This achieves integrated collection, treatment, and compliant discharge of waste liquid, avoiding operator contact with harmful waste liquid and ensuring experimental safety and environmental friendliness. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a burette cleaning device for food testing according to the present invention;

[0017] Figure 2 This is a schematic diagram of the upper end structure of the spray nozzle in a burette cleaning device for food testing according to this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the cleaning table in a burette cleaning device for food testing according to this utility model;

[0019] Figure 4 This is a cross-sectional view of the cleaning table and filter box in a burette cleaning device for food testing according to this utility model.

[0020] Figure 5 This is a schematic diagram of the conical seat in a burette cleaning device for food testing according to this utility model;

[0021] Figure 6 This is an exploded view of the conical seat in a burette cleaning device for food testing according to this utility model;

[0022] In the diagram: 1. Spray pipe; 2. Cleaning platform; 3. Spray head assembly; 4. Fine spray head; 5. Conical seat; 6. Water pump; 7. Inlet pipe; 8. Annular water collection tank; 9. Drain outlet; 10. Filter screen; 11. Filter box; 12. Handle; 13. Drain pipe; 14. First filter layer; 15. Second filter layer; 51. Conical base; 52. Annular silicone ring; 53. Guide groove; 54. Adjusting screw ring. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-6This utility model provides a technical solution: a burette cleaning device for food testing, including a nozzle 1 and a cleaning platform 2. The nozzle 1 is vertically installed on the upper end of the cleaning platform 2. Two nozzle groups 3 are arranged axially on the nozzle 1, and a fine nozzle 4 is installed at the top of the nozzle 1. A conical seat 5 is sleeved on the outer wall near the lower end of the nozzle 1. The conical seat 5 includes a conical base 51 and a plurality of annular silicone rings 52 sleeved on the outer wall of the conical base 51. The annular silicone rings 52 are distributed from top to bottom along the axial direction of the conical base 51. A plurality of radially distributed guide grooves 53 are opened on the conical surface of the conical base 51. The guide grooves 53 extend from top to bottom along the axial direction of the conical base 51. A threaded end is provided on the lower outer wall of the nozzle 1, and the threaded end of the lower end of the nozzle 1 is threadedly connected to an adjusting screw ring 54. The adjusting screw ring 54 is located at the lower end of the conical seat 5. In use, the burette to be cleaned is inverted, with its opening facing downwards, and fitted onto the conical seat 5 at the upper end of the nozzle 1. The inner wall of the burette opening forms multi-point elastic contact with multiple annular silicone rings 52 on the outer wall of the conical base 51. Since the annular silicone rings 52 are distributed from top to bottom along the axial direction of the conical base 51 and have elastic deformation capability, when burettes of different diameters are fitted, the edge of the opening will press on the annular silicone rings 52 at different heights. Each annular silicone ring 52 produces uniform radial elastic deformation, forming an adaptive grip on the burette. At the same time, since multiple annular silicone rings 52 are continuously distributed circumferentially, the resultant force they generate automatically adjusts the axis of the burette to coincide with the axis of the nozzle 1. Automatic centering and fixing of the burette is achieved to ensure that the burette remains stable and centered throughout the subsequent cleaning process. The rotating adjusting screw 54 can move up and down along the threaded end of the lower end of the nozzle 1, pushing the conical seat 5 to rise and fall along the axial direction of the nozzle 1 to adjust the installation height of the conical seat 5, thereby adapting to the cleaning needs of burettes of different lengths. After the water pump 6 is started, the water flows through the water inlet pipe 7 into the water pump 6, is pressurized and delivered to the nozzle 1. The water flow is sprayed out from the two nozzle groups 3 and the fine nozzle 4 to rinse the inner wall of the burette. The waste liquid after rinsing flows down along the inner wall of the burette and is guided by the guide groove 53 on the conical surface of the conical base 51 to drip into the annular water collection tank 8 at the upper end of the cleaning table 2 for collection.

[0025] The nozzle assembly 3 consists of multiple nozzles evenly distributed around the circumference of the nozzle tube 1, with the nozzles spraying water at an upward angle. The fine nozzle 4 sprays water towards the valve body and tip of the burette. When water is flowing through the nozzle tube 1, the multiple nozzles in the lower nozzle assembly 3 are evenly distributed around the circumference and spray water at an upward angle, forming a rotating and rising water curtain that circumferentially flushes the inner wall of the lower section of the burette. At the same time, the fine nozzle 4 at the top sprays water upward specifically to rinse the valve body and tip of the burette, ensuring that residues in the valve gaps and dead corners of the tip are thoroughly removed.

[0026] An annular water collection trough 8 is provided at the upper end of the cleaning platform 2. The annular water collection trough 8 is located at the connection between the lower end of the spray pipe 1 and the cleaning platform 2. When the rinsing waste liquid drips from the base of the spray pipe 1, it falls directly into the annular water collection trough 8 located at the connection between the lower end of the spray pipe 1 and the cleaning platform 2. The annular water collection trough 8 is arranged around the base of the spray pipe 1 to fully collect the dripping waste liquid and prevent the waste liquid from splashing out or flowing onto the surface of the cleaning platform 2.

[0027] The lower end of the spray nozzle 1 is connected to a water pump 6 via a pipe. The water pump 6 is installed inside the cleaning platform 2, and the water inlet end of the water pump 6 is connected to a water inlet pipe 7. After the water pump 6 is started, it draws external water through the water inlet pipe 7, pressurizes it, and then delivers it to the spray nozzle 1 through the pipe, providing a continuous and stable pressurized water flow for the entire cleaning process, ensuring that the nozzle assembly 3 and the fine nozzle 4 have sufficient scouring force.

[0028] The bottom of the annular water collection tank 8 has a drain outlet 9 that extends to the inside of the cleaning platform 2, and a filter screen 10 is installed at the drain outlet 9. A filter box 11 is slidably installed on the inside of the cleaning platform 2. The waste liquid collected by the annular water collection tank 8 flows downward through the drain outlet 9 at the bottom. The filter screen 10 at the drain outlet 9 performs preliminary filtration of the waste liquid, intercepting large particulate impurities. The filtered waste liquid falls into the filter box 11 directly below. The filter box 11 is slidably installed on the inside of the cleaning platform 2 for easy removal for cleaning or maintenance.

[0029] The filter box 11 is located directly below the drain outlet 9, and a handle 12 is installed at the front end of the filter box 11. A drain pipe 13 is connected to the bottom of the filter box 11, with the inlet end of the drain pipe 13 close to the bottom of the filter box 11. After the waste liquid enters the filter box 11, it is temporarily stored inside the box, and solid impurities settle at the bottom. When the liquid level rises to the height of the inlet end of the drain pipe 13, the supernatant is discharged outside the device through the drain pipe 13. The handle 12 is located at the front end of the filter box 11 to facilitate the operator to pull out the filter box 11 for cleaning or replacement.

[0030] like Figure 4 As shown, the inner side of the filter box 11 is equipped with a first filter layer 14 and a second filter layer 15 from top to bottom. The first filter layer 14 is a solid impurity interception layer, and the second filter layer 15 is an acid-base neutralization packing layer. After the waste liquid enters the filter box 11, it flows through the first filter layer 14 and the second filter layer 15 in sequence. The first filter layer 14, as a solid impurity interception layer, physically intercepts suspended particulate matter in the waste liquid, while the second filter layer 15, as an acid-base neutralization packing layer, contains a solid acid-base neutralizing agent to neutralize acidic or alkaline components in the waste liquid, so that the final discharged wastewater meets the safety discharge standards.

[0031] When using this device, first rotate the adjusting screw 54 according to the length of the burette. The adjusting screw 54 moves up and down along the threaded end of the lower end of the nozzle 1, pushing the conical seat 5 to rise and fall to a suitable height. Then, invert the burette to be cleaned so that its opening faces downwards and fits onto the conical seat 5. The inner wall of the burette opening makes elastic contact with multiple annular silicone rings 52 on the outer wall of the conical base 51. Burettes of different diameters are pressed on annular silicone rings 52 at different heights. The annular silicone rings 52 generate radial elastic deformation to form an adaptive clamping effect on the burette. At the same time, the combined force of multiple annular silicone rings 52 automatically adjusts the axis of the burette to coincide with the nozzle 1, achieving automatic centering and fixation. Start the water pump 6. Water flows through the inlet pipe 7 into the water pump 6, is pressurized, and then delivered to the nozzle 1. The water is sprayed out from the two nozzle groups 3 and the fine nozzle 4. Multiple nozzles in nozzle assembly 3 are evenly distributed circumferentially and spray upwards at an angle, forming a rotating, rising water curtain that annularly scours the inner wall of the lower section of the burette. Fine nozzles 4 spray upwards specifically targeting the valve body and tip of the burette for precise rinsing. The rinsed waste liquid flows downwards along the inner wall of the burette, guided by the guide groove 53 on the conical surface of the conical base 51, and drips into the annular collection tank 8. The waste liquid flows downwards through drain outlet 9, where the filter screen 10 intercepts large particles before falling into the filter box 11. Within the filter box 11, the waste liquid flows sequentially through the first filter layer 14 and the second filter layer 15. The first filter layer 14 physically traps suspended particles, while the solid acid-base neutralizing agent in the second filter layer 15 neutralizes the waste liquid. The treated wastewater is discharged outside the device through drain pipe 13. After cleaning, pull handle 12 to remove the filter box 11 for cleaning and maintenance.

[0032] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A burette cleaning device for food testing, characterized in that: The system includes a spray pipe (1) and a cleaning platform (2). The spray pipe (1) is vertically installed on the upper end of the cleaning platform (2). Two nozzle assemblies (3) are arranged axially on the spray pipe (1), and a fine nozzle (4) is installed at the top of the spray pipe (1). A conical seat (5) is fitted onto the outer wall of the spray pipe (1) near its lower end. The conical seat (5) includes a conical base (51) and multiple annular silicone rings (52) fitted onto the outer wall of the conical base (51). The silicone ring (52) is distributed from top to bottom along the axial direction of the conical base (51); multiple radially distributed guide grooves (53) are provided on the conical surface of the conical base (51), and the guide grooves (53) extend from top to bottom along the axial direction of the conical base (51); the lower end of the nozzle (1) is provided with a threaded end, and the threaded end of the lower end of the nozzle (1) is threadedly connected to the adjusting screw ring (54), and the adjusting screw ring (54) is located at the lower end of the conical seat (5).

2. The burette cleaning device for food testing according to claim 1, characterized in that: The nozzle assembly (3) consists of multiple nozzles evenly distributed around the nozzle tube (1), with the nozzles spraying upwards; the fine nozzle (4) sprays towards the valve body and tip of the burette.

3. The burette cleaning device for food testing according to claim 1, characterized in that: The upper end of the cleaning platform (2) is provided with an annular water collection trough (8), which is located at the connection between the lower end of the spray pipe (1) and the cleaning platform (2).

4. The burette cleaning device for food testing according to claim 1, characterized in that: The lower end of the nozzle (1) is connected to a water pump (6) via a pipe. The water pump (6) is installed inside the cleaning platform (2). The water inlet end of the water pump (6) is connected to a water inlet pipe (7).

5. The burette cleaning device for food testing according to claim 3, characterized in that: The bottom of the annular water collection tank (8) is provided with a drain outlet (9) that extends to the inside of the cleaning platform (2), and a filter screen (10) is provided at the drain outlet (9); a filter box (11) is slidably installed on the inside of the cleaning platform (2).

6. The burette cleaning device for food testing according to claim 5, characterized in that: The filter box (11) is located directly below the drain outlet (9), and a handle (12) is installed at the front end of the filter box (11); a drain pipe (13) is connected to the bottom of the filter box (11), and the inlet end of the drain pipe (13) is close to the bottom of the filter box (11).

7. A burette cleaning device for food testing according to claim 5, characterized in that: The filter box (11) is equipped with a first filter layer (14) and a second filter layer (15) from top to bottom on the inner side; the first filter layer (14) is a solid impurity interception layer, and the second filter layer (15) is an acid-base neutralization packing layer.

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