Constant volume device for digestion instrument

Abstract

The utility model discloses a constant volume device for a digestion instrument, which belongs to the field of digestion instruments and is characterized in that two adjacent buffer rings are connected through a connecting strip, test tubes penetrate through the buffer rings, and buffer protection is realized through the buffer rings; the upper end of the mounting base is connected with a constant-volume top plate through a connecting rod, a constant-volume through hole directly facing the test tube is formed in the constant-volume top plate, liquid is added to the test tube through the constant-volume through hole, and protective side plates are arranged on the two sides of the lower end of the constant-volume top plate. According to the constant volume device for the digestion instrument, the mounting seat, the buffer ring, the connecting strip and other structures are designed, so that a test tube is effectively prevented from being damaged by vibration and impact, the service life is prolonged, and the experiment stability is improved. The liquid adding process is simplified through the design of the through holes in the constant-volume top plate, and the experiment accuracy and repeatability are improved. The protective side plates prevent liquid from overflowing, and experiment safety is ensured. The constant-volume mechanism is easy to maintain and disassemble, through threaded connection, a user can maintain and replace parts conveniently, and the maintenance cost and time are reduced.

Description

Technical Field

[0001] This utility model relates to the field of digestion apparatus, and in particular to a volume-regulating device for a digestion apparatus. Background Technology

[0002] A digester is a commonly used sample pretreatment device, primarily used to degrade difficult-to-detect substances and convert them into easily detectable compounds or ions for subsequent analysis and detection. Digesters are widely used in research and experiments in various fields such as chemistry, environment, food, and biology. For example, they are used to digest environmental samples such as soil and water to analyze the content of pollutants such as heavy metals and organic matter; to digest food samples to detect the content of nutrients and additives; to digest biological tissues and cells for subsequent molecular biology research; to digest geological samples to analyze the content of elements and compounds; and to digest and analyze chemical products to understand their composition and properties.

[0003] While volume control devices are not typically standard equipment in digestion systems, some advanced digestion systems may be equipped with automatic volume control. Volume control devices generally involve precise liquid measurement and dispensing systems to ensure that the digested sample volume reaches the predetermined requirements. These devices may include traditional tools such as volume control bottles, pipettes, and burettes, or they may employ more advanced automated liquid handling systems.

[0004] Current volume-adjusting devices for digestion apparatus have a significant drawback in practical use: because of the top plate installed at the top of the test tube, operators must remove the top plate before performing volume adjustment. Removing the top plate is time-consuming and laborious, reducing work efficiency. Operators need to spend extra time and effort to complete this step, thus affecting the overall progress of the experiment or test.

[0005] Removing the top plate carries the risk of damaging test tubes or the apparatus. Improper handling could lead to test tube breakage or apparatus damage, negatively impacting experimental results. The presence of the top plate also limits the flexibility of volume adjustment procedures. In some cases, operators may need to perform volume adjustment without removing the top plate, but the current apparatus design does not meet this requirement. Utility Model Content

[0006] The main objective of this invention is to provide a volume-regulating device for a digester, which can effectively solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A constant volume device for a digestion instrument, comprising an instrument chassis, a heat dissipation port, a touch screen and test tubes. The heat dissipation port and the touch screen are distributed on the side wall and the front end of the instrument chassis, and the test tubes are inserted into the upper opening of the instrument chassis;

[0009] An installation seat is provided at the upper end of the instrument chassis. A plurality of buffer rings are provided at the upper opening of the installation seat. Two adjacent buffer rings are connected by a connecting strip. The test tube passes through the buffer rings and is buffered and protected by the buffer rings;

[0010] The upper end of the installation seat is connected with a constant volume top plate through a connecting rod. A constant volume through hole facing the test tube is provided on the constant volume top plate. Liquid is added to the test tube through the alignment of the constant volume through hole. Protective side plates are provided on both sides of the lower end of the constant volume top plate.

[0011] In a further preferred solution, the upper and lower ends of the connecting rod are respectively provided with a bolt head and a threaded part. The bolt head is integrally designed with the connecting rod. The threaded part is located at the lower end of the connecting rod. The threaded part is inserted into the opening of the installation seat and is threadedly fixed to the instrument chassis;

[0012] In a further preferred solution, a handle is provided at the center of the upper end of the constant volume top plate. The handle is a spherical handle. The protective side plate is snap-fitted on the constant volume top plate. A waist-shaped hole is provided on the side wall of the protective side plate. The protective side plate is a transparent protective plate. Protrusions are provided at the four corners of the constant volume top plate. The connecting rod is located at the opening of the protrusion;

[0013] In a further preferred solution, a round hole is provided on the installation seat. The round hole is directly opposite to the reagent tube placement port at the upper end of the instrument chassis. A plurality of reagent tube placement ports are distributed in a "mouth" shape. The screw holes on the installation seat are directly opposite to the screw holes at the upper end of the instrument chassis;

[0014] In a further preferred solution, a plurality of the buffer rings are distributed in a "mouth" shape. The buffer rings are integrally designed with the connecting strip. The buffer rings and the connecting strip are made of a buffer rubber material. The upper port of the buffer ring is designed as a flared port;

[0015] In a further preferred solution, the top view of the constant volume through hole is designed as a waist-shaped hole. The test tube passes through the constant volume through hole and is installed at the reagent tube placement port at the upper end of the instrument chassis. A constant volume dropper is inserted into the constant volume through hole to perform the constant volume operation of the test tube.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] By designing structures such as an installation seat, buffer rings and connecting strips, effective buffer protection for the test tubes is achieved. During the insertion and removal of the test tubes, the vibration and impact can be significantly reduced, effectively preventing the test tubes from being damaged due to excessive force, thereby improving the service life of the test tubes and the stability of the experiment.

[0018] The volume control through-hole design on the top plate makes liquid addition more precise and convenient. Users can directly add liquid to the test tube through the through-hole, greatly improving the accuracy and repeatability of the experiment. Meanwhile, the protective side plates not only provide protection but also effectively prevent liquid spillage, further ensuring the safety and accuracy of the experiment.

[0019] This volume control mechanism also boasts excellent maintainability and disassembly. It is securely fixed to the instrument housing via a threaded connection on the connecting rod, ensuring both robustness and ease of disassembly, facilitating user maintenance and component replacement. This design not only enhances the reliability and durability of the equipment but also reduces maintenance costs and time for users. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a front view of the overall structure of this utility model;

[0022] Figure 3 The diagram shows the mounting base, buffer ring, volume-fixing top plate, volume-fixing through hole, protective side plate, and connecting rod of this utility model.

[0023] Figure 4 This is an exploded view of the mounting base, buffer ring, top plate, through hole, protective side plate, and connecting rod of this utility model.

[0024] In the diagram: 1. Instrument chassis; 2. Heat dissipation vent; 3. Touch screen; 4. Mounting base; 5. Test tube; 6. Connecting strip; 7. Buffer ring; 8. Volume-fixing top plate; 9. Volume-fixing through hole; 10. Protective side plate; 11. Bolt head; 12. Connecting rod; 13. Threaded part. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1 - Figure 4 As shown, a volume control device for a digestion apparatus includes an instrument housing 1, a heat dissipation vent 2, a touch screen 3, and a test tube 5. The heat dissipation vent 2 and the touch screen 3 are located on the side wall and front end of the instrument housing 1, while the test tube 5 is designed to be inserted into the upper opening of the instrument housing 1. This design not only facilitates user operation but also ensures the heat dissipation performance of the instrument and the intuitiveness of the user interface.

[0027] At the upper end of the instrument housing 1, a mounting base 4 is provided, and multiple buffer rings 7 are designed at the upper opening of the mounting base 4. These adjacent buffer rings 7 are connected to each other by connecting strips 6. The test tube 5 can pass through these buffer rings 7, and the buffer rings 7 provide cushioning protection for the test tube 5. This design can effectively reduce the vibration and impact of the test tube 5 during insertion and removal, thereby protecting the test tube 5 from damage.

[0028] The upper end of the mounting base 4 is connected to the volume-fixing top plate 8 via a connecting rod 12. The volume-fixing top plate 8 has a volume-fixing through hole 9 facing the test tube 5, through which liquid can be added to the test tube 5. In addition, protective side plates 10 are provided on both sides of the lower end of the volume-fixing top plate 8. The protective side plates 10 not only serve a protective function, but also prevent liquid from overflowing.

[0029] The connecting rod 12 has a bolt head 11 and a threaded part 13 at its upper and lower ends, respectively. The bolt head 11 is integrally designed with the connecting rod 12, while the threaded part 13 is located at the lower end of the connecting rod 12. The threaded part 13 is inserted into the opening of the mounting base 4 and threadedly fixed to the instrument housing 1; this connection method is both firm and easy to disassemble, facilitating maintenance and replacement of parts.

[0030] A handle, spherical in shape, is designed at the center of the upper end of the volume-fixing top plate 8 for easy gripping. A protective side plate 10 is snapped onto the volume-fixing top plate 8. The side wall of the protective side plate 10 has a perforation, and the protective side plate 10 is a transparent protective plate, allowing clear observation of liquid changes within the test tube 5. Protrusions are located at the four corners of the volume-fixing top plate 8, with the connecting rod 12 positioned at the openings in these protrusions; this design increases the stability and durability of the device.

[0031] The mounting base 4 has a round hole that aligns with the reagent tube placement port at the top of the instrument housing 1. Multiple reagent tube placement ports are arranged in a U-shape, and the screw holes on the mounting base 4 align with the screw holes at the top of the instrument housing 1. This layout simplifies and speeds up the placement and securing of reagent tubes, improving work efficiency.

[0032] Multiple buffer rings 7 are arranged in a "U" shape, and the buffer rings 7 and connecting strips 6 are designed as a single unit. The buffer rings 7 and connecting strips 6 are made of buffer rubber material, and the upper end of the buffer rings 7 is designed with a flared opening; this material and design can effectively absorb vibration and protect the test tube 5 during insertion and removal.

[0033] The top view of the volume-fixing through-hole 9 is designed as a waist-shaped opening. Test tube 5 passes through the volume-fixing through-hole 9 and is installed at the reagent tube placement port on the upper end of the instrument housing 1. A volume-fixing dropper is inserted into the volume-fixing through-hole 9 to achieve the volume-fixing operation of test tube 5. This design makes the volume-fixing operation precise and convenient, greatly improving the accuracy and repeatability of the experiment.

[0034] Assembly Process: Place the heat dissipation vent 2 on the side wall of the instrument housing 1. Place the touch screen 3 at the front end of the instrument housing 1. Fix the mounting base 4 to the upper opening of the instrument housing 1. Install multiple buffer rings 7 at the upper opening of the mounting base 4, connecting them to each other via connecting strips 6. Connect the upper end of the connecting rod 12 to the volume-fixing top plate 8. Insert the threaded portion 13 of the lower end of the connecting rod 12 into the opening of the mounting base 4 and thread it to the instrument housing 1. Create a volume-fixing through hole 9 on the volume-fixing top plate 8, directly opposite the test tube 5. Attach the protective side plate 10 to the volume-fixing top plate 8, ensuring that the side wall of the protective side plate 10 has a waist-shaped opening and is a transparent protective plate. Create a round hole on the mounting base 4, directly opposite the reagent tube placement opening at the top of the instrument housing 1. Ensure that the multiple reagent tube placement openings are arranged in a "U" shape and aligned with the screw holes at the top of the instrument housing 1. Arrange the multiple buffer rings 7 in a "U" shape; the buffer rings 7 are integrated with the connecting strips 6. Ensure the upper end of the buffer ring 7 has a flared design and is made of cushioning rubber material. A ball-shaped handle is installed at the center of the upper end of the top plate 8 for easy gripping. Protrusions are provided at the four corners of the top plate 8, with the connecting rod 12 located at the openings of these protrusions.

[0035] During use: Ensure all components are correctly installed and secured. Check that the ventilation vents 2 of the instrument housing 1 are unobstructed to ensure proper heat dissipation. Pass the test tube 5 through the buffer ring 7 of the mounting base 4, ensuring the test tube 5 is aligned with the reagent tube placement port at the top of the instrument housing 1. Slowly insert the test tube 5, utilizing the buffer ring 7's cushioning function to reduce vibration and impact. Add liquid to the test tube 5 through the volume-changing through-hole 9 on the volume-changing top plate 8. Use a volume-changing dropper inserted into the volume-changing through-hole 9 for precise volume-changing. Observe the liquid changes inside the test tube 5 through the transparent protective plate 10. Use the touch screen 3 to set up operations and monitor the experimental process. If maintenance or replacement of parts is required, disassemble and re-secure them through the threaded portion 13 of the connecting rod 12. Ensure all connections are secure to prevent loosening from affecting experimental accuracy. After completing the experiment, remove the test tube 5 by reversing the steps. Clean and maintain the equipment to ensure accuracy for the next use.

[0036] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0037] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A volume-regulating device for a digestion apparatus, comprising an instrument housing (1), a heat dissipation vent (2), a touch screen (3), and a test tube (5), wherein the heat dissipation vent (2) and the touch screen (3) are distributed on the side wall and front end of the instrument housing (1), and the test tube (5) is inserted into the upper opening of the instrument housing (1), characterized in that: The upper end of the instrument chassis (1) is provided with a mounting seat (4). At the upper end opening of the mounting seat (4), there are multiple buffer rings (7). Two adjacent buffer rings (7) are connected by a connecting strip (6). The test tube (5) passes through the buffer rings (7) and is buffer - protected by the buffer rings (7). The upper end of the mounting seat (4) is connected with a constant - volume top plate (8) through a connecting rod (12). A constant - volume through - hole (9) facing the test tube (5) is opened on the constant - volume top plate (8). Liquid is added to the test tube (5) by aligning the constant - volume through - hole (9). On both sides of the lower end of the constant - volume top plate (8), there are protective side plates (10).

2. The volume-regulating device for a digester according to claim 1, characterized in that: The upper and lower ends of the connecting rod (12) are respectively provided with a bolt head (11) and a threaded part (13). The bolt head (11) is integrally designed with the connecting rod (12). The threaded part (13) is located at the lower end of the connecting rod (12). The threaded part (13) is inserted into the opening of the mounting seat (4) and is thread - fixed to the instrument chassis (1).

3. The volume-regulating device for a digester according to claim 2, characterized in that: At the center of the upper end of the constant - volume top plate (8), there is a handle, and this handle is a spherical handle. The protective side plate (10) is snap - fitted on the constant - volume top plate (8). A waist - shaped hole is opened on the side wall of the protective side plate (10). The protective side plate (10) is a transparent protective plate. At the four corners of the constant - volume top plate (8), there are protruding parts, and the connecting rod (12) is located at the openings of the protruding parts.

4. The volume-regulating device for a digester according to claim 3, characterized in that: A round hole is opened on the mounting seat (4), and this round hole is facing the reagent tube placement opening at the upper end of the instrument chassis (1). Multiple reagent tube placement openings are distributed in a "mouth" shape. The screw holes on the mounting seat (4) are facing the screw holes at the upper end of the instrument chassis (1).

5. A volume-regulating device for a digester according to claim 4, characterized in that: Multiple buffer rings (7) are distributed in a "mouth" shape. The buffer rings (7) and the connecting strip (6) are integrally designed, and the buffer rings (7) and the connecting strip (6) are made of buffer rubber material. The upper port of the buffer ring (7) is designed as a flared opening.

6. The volume-regulating device for a digester according to claim 5, characterized in that: The top - view of the constant - volume through - hole (9) is designed as a waist - shaped hole. The test tube (5) passes through the constant - volume through - hole (9) and is installed at the reagent tube placement opening at the upper end of the instrument chassis (1). A constant - volume dropper is inserted into the constant - volume through - hole (9) to perform the constant - volume operation of the test tube (5).

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