Sample diluting device for inspection

Abstract

The utility model relates to the technical field of sample diluting equipment, in particular to a sample diluting device for inspection, which comprises a main body, the main body comprises a top cover and a diluting barrel, the top surface of the top cover is provided with a sample inlet hole and a diluent hole, a liquid inlet hopper is fixedly inserted into the inner wall of the sample inlet hole, a liquid inlet pipe is fixedly inserted into the inner wall of the diluent hole, and a liquid outlet pipe is fixedly inserted into the liquid inlet pipe. The top end of the liquid inlet pipe communicates with a diluent container, a first electromagnetic valve is fixedly connected to the outer wall of the liquid inlet pipe in a sleeving mode, a double-shaft motor is fixedly connected to the interior of the top cover, and a first motor shaft of the double-shaft motor is in transmission connection with a first gear. According to the device disclosed by the utility model, the top cover, the diluent container, the double-shaft motor, the stirring unit, the diluting barrel, the gear I, the electric telescopic rod, the one-way bearing, the gear II, the turntable, the plurality of sample containers and the electromagnetic valve II are arranged in a matched manner, so that the device can be used for automatically stirring and diluting by driving the double-shaft motor; and an operator does not need to repeatedly add or replace the sample container, so that the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sample dilution equipment, in particular to a sample dilution device for testing. Background Art

[0002] In laboratories and industrial production, sample dilution is a common and crucial step. Whether it is chemical analysis, biological testing or other types of inspection work, it is usually necessary to dilute the original sample to an appropriate concentration to meet the requirements of the test instrument or method.

[0003] Traditional sample dilution methods mainly rely on manual operations, such as using pipettes, measuring cylinders and other tools for sampling and dilution. Although this method is simple and easy, it has many defects. First, manual stirring is easily affected by human factors, resulting in inaccurate dilution ratios, thereby affecting the reliability of test results. Secondly, when multiple groups of test tubes need to be diluted with liquid, the operator's arms will ache and become fatigued, making it inconvenient to operate and not conducive to improving work efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a sample dilution device for testing to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sample dilution device for inspection comprises a main body, wherein the main body comprises a top cover and a dilution barrel, wherein a sample injection hole and a diluent hole are provided on the top surface of the top cover, a liquid inlet hopper is plugged and fixed to the inner wall of the sample injection hole, a liquid inlet pipe is plugged and fixed to the inner wall of the diluent hole, the top end of the liquid inlet pipe is connected to a diluent container, a solenoid valve 1 is sleeved and fixed to the outer wall of the liquid inlet pipe, a dual-axis motor is fixedly connected to the inside of the top cover, a motor shaft 1 of the dual-axis motor is transmission-connected to a gear 1, a motor shaft 2 of the dual-axis motor is transmission-connected to a stirring unit, and a threaded groove is provided on the outer wall of the top cover near the bottom.

[0007] Furthermore, the stirring unit includes a stirring shaft, the top end of the stirring shaft is transmission-connected to the second motor shaft of the dual-shaft motor, the outer wall of the stirring shaft is rotationally connected to the bottom surface of the top cover, a plurality of stirring rods are provided at equal angles on the outer wall of the stirring shaft, a circular ring is sleeved and fixed on the outer wall of the stirring shaft, and four scrapers are provided at equal angles on the bottom surface of the circular ring.

[0008] Further, three legs are fixedly connected to the bottom surface of the dilution barrel at equal angles, the outer wall of the dilution barrel is connected to a drain pipe, the outer wall of the drain pipe is sleeved and fixed with a solenoid valve three, the inner wall of the dilution barrel near the top is provided with a threaded groove, the threaded groove on the inner wall of the dilution barrel and the threaded groove on the outer wall of the top cover are matched with each other, and the inner wall of the dilution barrel and the outer wall of the top cover are screwed together.

[0009] Preferably, an observation window is provided on the outer wall of the dilution barrel, and anti-slip pads are adhered to the bottom surfaces of the three legs.

[0010] Furthermore, the top surface of the top cover is rotatably connected to an electric telescopic rod, the top end of the electric telescopic rod is fixedly connected to a turntable, the outer wall of the electric telescopic rod near the bottom end is sleeved and fixed with a one-way bearing, the outer wall of the one-way bearing is sleeved and fixed with a gear 2, and the gear 2 is meshed with the gear 1 for transmission.

[0011] Furthermore, a plurality of notches are provided at equal angles on the top surface of the turntable, sample containers are inserted and fixed in a plurality of the notches, and a second electromagnetic valve is sleeved and fixed at the bottom ends of a plurality of the sample containers.

[0012] Preferably, the plurality of sample containers are made of transparent glass, and outer walls of the plurality of sample containers are provided with scale lines.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Through the coordinated arrangement of the top cover, the injection hole, the diluent hole, the diluent container, the double-axis motor, the stirring shaft, the stirring rod, the ring, the scraper, the dilution barrel and the discharge pipe, the device can stir and dilute by driving the double-axis motor, thereby ensuring the accuracy of the dilution ratio and improving the dilution efficiency.

[0015] 2. Through the coordination of the dual-axis motor, gear 1, electric telescopic rod, one-way bearing, gear 2, turntable, several sample containers and solenoid valve 2, it is unnecessary for operators to repeatedly add or replace sample containers, thereby reducing the complexity of operators' work and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a sample dilution device for testing of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the top cover in the utility model;

[0018] Figure 3 It is a schematic diagram of the external structure of the top cover in the utility model;

[0019] Figure 4It is a schematic diagram of the structure of the stirring unit in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the dilution barrel in the utility model.

[0021] In the figure: 100, main body; 110, top cover; 111, injection hole; 112, diluent hole; 113, liquid inlet bucket; 120, diluent container; 121, liquid inlet pipe; 122, solenoid valve one; 130, double-axis motor; 131, gear one; 140, electric telescopic rod; 141, gear two; 142, turntable; 143, sample container; 144, solenoid valve two; 150, stirring unit; 151, stirring shaft; 152, stirring rod; 153, ring; 154, scraper; 160, dilution barrel; 161, support leg; 162, drain pipe; 163, observation window; 164, solenoid valve three. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 5 In an embodiment of the utility model, a sample dilution device for inspection includes a main body 100, which includes a top cover 110 and a dilution barrel 160. A sample injection hole 111 and a diluent hole 112 are provided on the top surface of the top cover 110. A liquid inlet hopper 113 is fixedly connected to the inner wall of the sample injection hole 111, and a liquid inlet pipe 121 is fixedly connected to the inner wall of the diluent hole 112. The top of the liquid inlet pipe 121 is connected to a diluent container 120, and an electromagnetic valve 122 is fixedly connected to the outer wall of the liquid inlet pipe 121. A dual-axis motor 130 is fixedly connected inside the top cover 110, and a motor shaft 1 of the dual-axis motor 130 is transmission-connected to a gear 131, and a motor shaft 2 of the dual-axis motor 130 is transmission-connected to a stirring unit 150. A threaded groove is provided on the outer wall of the top cover 110 near the bottom.

[0024] Specifically, the sample is put into the dilution barrel 160 through the liquid inlet hopper 113. According to the required dilution ratio, the solenoid valve 122 is controlled to open, so that the dilution liquid in the dilution liquid container 120 falls into the dilution barrel 160, and then the motor shaft of the dual-axis motor 130 is driven to rotate clockwise, so that the stirring unit 150 fully stirs the mixed liquid in the dilution barrel 160 to dilute it, and finally the diluted sample is discharged.

[0025] Embodiment 1

[0026] like Figure 5 As shown, in this embodiment, three legs 161 are fixedly connected to the bottom surface of the dilution barrel 160 at equal angles, the outer wall of the dilution barrel 160 is connected to a drain pipe 162, and a solenoid valve 164 is fixedly sleeved on the outer wall of the drain pipe 162, a threaded groove is provided on the inner wall of the dilution barrel 160 near the top, the threaded groove on the inner wall of the dilution barrel 160 and the threaded groove on the outer wall of the top cover 110 are matched with each other, the inner wall of the dilution barrel 160 and the outer wall of the top cover 110 are screwed together, an observation window 163 is provided on the outer wall of the dilution barrel 160, and anti-slip pads are adhered to the bottom surfaces of the three legs 161.

[0027] In this embodiment, the threaded groove on the inner wall of the top end of the dilution barrel 160 and the threaded groove on the outer wall of the bottom end of the top cover 110 match in size, so that the dilution barrel 160 and the top cover 110 can be screwed together, so that the stirring and dilution process is in a sealed state to prevent splashing and contamination of the liquid during the mixing process. The internal stirring and dilution conditions can be observed through the observation window 163. The bottom surface of the support leg 161 is adhered with an anti-slip pad of a certain thickness to increase friction and prevent the device from moving due to vibration generated by stirring. After the stirring and dilution is completed, the solenoid valve three 164 is opened to discharge the internally diluted sample.

[0028] like Figure 2 and Figure 4 As shown, in this embodiment, the stirring unit 150 includes a stirring shaft 151, the top end of the stirring shaft 151 is transmission connected to the second motor shaft of the dual-axis motor 130, the outer wall of the stirring shaft 151 is rotatably connected to the bottom surface of the top cover 110, a plurality of stirring rods 152 are provided at equal angles on the outer wall of the stirring shaft 151, a circular ring 153 is sleeved and fixed on the outer wall of the stirring shaft 151, and four scrapers 154 are provided at equal angles on the bottom surface of the circular ring 153.

[0029] During specific implementation, the motor shaft of the dual-axis motor 130 is driven clockwise to the stirring shaft 151, so that the stirring shaft 151 and the stirring rod 152 rotate, and the mixed liquid inside the dilution barrel 160 is stirred and mixed, thereby avoiding manual stirring by the operator, greatly reducing the workload of the operator, and improving the dilution quality and efficiency; a circular ring 153 is fixedly sleeved on the outer wall of the stirring shaft 151, and four scrapers 154 are provided at equal angles on the bottom surface of the circular ring 153, and the sides of the scrapers 154 are in contact with the inner wall of the dilution barrel 160, so that when the stirring shaft 151 rotates, the circular ring 153 and the scrapers 154 will also rotate, so that the scrapers 154 scrape the inner wall of the dilution barrel 160 to avoid the sample adhering to the inner wall of the dilution barrel 160 and affecting the dilution effect, and at the same time, it is also convenient for subsequent cleaning of the device.

[0030] Embodiment 2

[0031] On the basis of the first embodiment, in order to make up for the defect in the first embodiment that samples need to be added again or the sample container 143 needs to be replaced every time a group of samples is diluted.

[0032] like Figure 2-3 As shown, in this embodiment, the top surface of the top cover 110 is rotatably connected to an electric telescopic rod 140, the top of the electric telescopic rod 140 is fixedly connected to a turntable 142, the outer wall of the electric telescopic rod 140 near the bottom end is sleeved and fixed with a one-way bearing, the outer wall of the one-way bearing is sleeved and fixed with a gear 2 141, the gear 2 141 and the gear 1 131 are meshed for transmission, a plurality of notches are provided at equal angles on the top surface of the turntable 142, sample containers 143 are inserted and fixed in the plurality of notches, the bottom ends of the plurality of sample containers 143 are sleeved and fixed with a solenoid valve 2 144, the plurality of sample containers 143 are made of transparent glass, and the outer walls of the plurality of sample containers 143 are provided with scale lines.

[0033] In specific implementation, a plurality of sample containers 143 can be used to place samples to be diluted. The bottom end of each sample container 143 is sleeved and fixed with a solenoid valve 2 144. When the motor shaft of the dual-axis motor 130 is driven to rotate clockwise, the one-way bearing is in a relaxed state, and the gear 2 141 will not mesh and rotate with the gear 1 131. When it is necessary to dilute the sample in another sample container 143, the electric telescopic rod 140 is first driven to extend to make the bottom end of the sample container 143 away from the top of the liquid inlet bucket 113, and the motor shaft of the dual-axis motor 130 is driven to rotate counterclockwise. At this time, the one-way bearing is locked, and the rotation The rotating gear 131 and the gear 2 141 are meshed and transmitted, so that the electric telescopic rod 140 drives the turntable 142 to rotate, so that another sample container 143 is transferred to the position corresponding to the liquid inlet bucket 113, and then the dual-axis motor 130 is turned off to drive the electric telescopic rod 140 to retract, so that the bottom end of the replaced sample container 143 and the top end of the liquid inlet bucket 113 are engaged, and then the corresponding solenoid valve 2 144 is opened to allow the sample inside to fall into the dilution bucket 160. This structure avoids the operator from repeatedly adding or replacing the sample to be diluted, reduces the operator's workload, and improves work efficiency.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sample dilution device for testing, characterized in that: The invention comprises a main body, which comprises a top cover and a dilution barrel. A sample injection hole and a diluent hole are provided on the top surface of the top cover. A liquid inlet hopper is fixedly connected to the inner wall of the sample injection hole. A liquid inlet pipe is fixedly connected to the inner wall of the dilution hole. The top end of the liquid inlet pipe is connected to a dilution container. A solenoid valve 1 is fixedly connected to the outer wall of the liquid inlet pipe. A dual-axis motor is fixedly connected inside the top cover. A motor shaft 1 of the dual-axis motor is transmission-connected with a gear 1. A motor shaft 2 of the dual-axis motor is transmission-connected with a stirring unit. A threaded groove is provided on the outer wall of the top cover near the bottom.

2. A sample dilution device for testing according to claim 1, characterized in that: The stirring unit includes a stirring shaft, the top end of the stirring shaft is transmission-connected to the second motor shaft of the dual-shaft motor, the outer wall of the stirring shaft is rotationally connected to the bottom surface of the top cover, a plurality of stirring rods are provided at equal angles on the outer wall of the stirring shaft, a circular ring is sleeved and fixed on the outer wall of the stirring shaft, and four scrapers are provided at equal angles on the bottom surface of the circular ring.

3. A sample dilution device for testing according to claim 1, characterized in that: The bottom surface of the dilution barrel is fixedly connected with three legs at equal angles, the outer wall of the dilution barrel is connected with a drainage pipe, the outer wall of the drainage pipe is sleeved and fixed with a solenoid valve three, the inner wall of the dilution barrel near the top is provided with a threaded groove, the threaded groove on the inner wall of the dilution barrel and the threaded groove on the outer wall of the top cover are matched with each other, and the inner wall of the dilution barrel and the outer wall of the top cover are screwed together.

4. A sample dilution device for testing according to claim 3, characterized in that: An observation window is provided on the outer wall of the dilution barrel, and anti-skid pads are adhered to the bottom surfaces of the three legs.

5. The sample dilution device for testing according to claim 1, characterized in that: The top surface of the top cover is rotatably connected to an electric telescopic rod, the top of the electric telescopic rod is fixedly connected to a turntable, the outer wall of the electric telescopic rod near the bottom end is sleeved and fixed with a one-way bearing, the outer wall of the one-way bearing is sleeved and fixed with gear 2, and gear 2 is meshed with gear 1 for transmission.

6. A sample dilution device for testing according to claim 5, characterized in that: The top surface of the rotating disk is provided with a plurality of slots at equal angles, and sample containers are inserted and fixed in the plurality of slots, and electromagnetic valves 2 are sleeved and fixed at the bottom ends of the plurality of sample containers.

7. A sample dilution device for testing according to claim 6, characterized in that: Several of the sample containers are made of transparent glass, and the outer walls of several of the sample containers are provided with scale lines.

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