Flow-controllable solution preparation device

Abstract

The utility model discloses a flow-controllable solution preparation device. The flow-controllable solution preparation device comprises a shell, a solution bottle and a suction head, the shell sequentially comprises a connecting pipe, a shell body and a connector from top to bottom, the shell can be divided into two parts, namely a front shell and a rear shell, the front shell and the rear shell are respectively provided with same semicircular grooves, solution pipes are mounted in the semicircular grooves, the connecting pipe is connected with the solution bottle, and the connector is connected with a suction head; after the shell and the suction head of the solution bottle are installed, the upper moving rod is pressed down firstly, so that the solution in the solution bottle flows into the solution storage pipe from the upper circular pipe to be temporarily stored, meanwhile, the condition of the solution in the solution storage pipe can be checked through the observation opening, volume information is read through the scale marks, then the lower moving rod is pressed down, and the volume information is read through the scale marks. In this way, the solution in the liquid storage pipe can be discharged from the suction head, the amount discharged each time can be controlled through the liquid storage pipe, and the functions of flow regulation and control and solution measurement are achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of solution preparation devices, specifically a solution preparation device with controllable flow rate. Background Technology

[0002] Solution preparation refers to the process of dissolving a solute in a solvent to prepare a solution with a certain concentration and volume. This process often requires numerous tools, such as test tubes, beakers, graduated cylinders, and droppers. While these tools can meet the needs of preparing large quantities of solutions, nowadays, when preparing large batches of solutions, many test tubes need to be prepared. Equal amounts of solute are then added to the test tubes using a dropper, and the solution in the test tubes is then mixed with other solutions. In this process, the bottle containing the solute cannot meet the quantitative requirements, necessitating the use of test tubes or graduated cylinders for measurement. This adds many steps and makes the operation cumbersome for staff. Utility Model Content

[0003] To overcome the problems in the prior art, this utility model provides a solution preparation device with controllable flow rate.

[0004] The technical solution is as follows: A solution preparation device with controllable flow rate includes: a shell, a solution bottle, and a pipette tip; the shell consists of a connecting tube, a body, and a connector from top to bottom, and the shell can be divided into two parts, namely a front shell and a rear shell. The front shell and the rear shell are respectively provided with the same semi-circular groove, and an installation tube is installed in the semi-circular groove. The solution bottle is connected to the connecting tube, and the pipette tip is connected to the connector tip.

[0005] The semicircular groove has horizontally opened installation slots at the upper and lower positions. The right side of the installation slot penetrates the shell. The shape of the installation tube matches the semicircular groove. The installation tube consists of an upper circular tube, a liquid storage tube, a lower circular tube, and a liquid outlet tube from top to bottom. The upper and lower circular tubes are vertically provided with the same liquid stop tube. The one provided on the upper circular tube is the upper liquid stop tube, and the one provided on the lower circular tube is the lower liquid stop tube. The upper and lower liquid stop tubes are installed in the installation slots respectively. The liquid outlet tube is located inside the connector.

[0006] Furthermore, the stop tube is divided into two sections, separated by a partition. The partition is positioned slightly to the right and close to the center. The left side of the partition is a piston tube, and the right side is a moving tube. A circular hole is provided in the center of the partition. A stop rod is installed inside the stop tube. The stop rod consists of a piston, a connecting rod, and a moving rod. The piston is slidably installed inside the piston tube, the connecting rod is installed inside the circular hole, and the moving rod is slidably installed inside the moving tube. A compression spring is provided between the partition and the moving rod.

[0007] Furthermore, when the compression spring is in its initial state, the piston is located on the right side of the piston tube and close to the partition. At this time, the piston blocks the passage of the upper and lower round tubes. When the moving rod is pressed, the compression spring is compressed, and the piston slides to the left. At this time, the passage of the upper and lower round tubes is opened, the upper round tube is connected to the liquid storage tube, and the lower round tube is connected to the liquid outlet tube. When the moving rod is released, the compression spring rebounds, and the piston returns to the right side to block the passage of the upper and lower round tubes again.

[0008] Furthermore, the front housing has a slot linearly provided at the edge of the housing body, and the rear housing has a matching block corresponding to the slot. The front housing and the rear housing are installed together by the block and the slot fitting together.

[0009] Furthermore, an observation port is provided on the shell of the front housing, and the liquid storage tube is made of transparent material. The internal condition of the liquid storage tube can be directly seen through the observation port. At the same time, a scale line is provided on the side of the observation port to indicate the volume of liquid inside the liquid storage tube.

[0010] Furthermore, the inner tube of the connecting tube is provided with an internal thread, and the bottle mouth of the solution bottle is provided with a matching external thread. The solution bottle is installed onto the connecting tube by screwing the external thread and the internal thread together.

[0011] The beneficial effects of this utility model are:

[0012] The installation tube of this device has the functions of regulating flow rate and measuring solution. After installing the shell, solution bottle, and pipette tip, first press the upper moving lever to allow the solution in the solution bottle to flow from the upper round tube into the storage tube for temporary storage. At the same time, the condition of the solution in the storage tube can be viewed through the observation port, and the volume information can be read through the scale. Then press the lower moving lever, so that the solution in the storage tube can be discharged from the pipette tip. The amount discharged each time can be controlled through the storage tube, realizing the functions of regulating flow rate and measuring solution. At the same time, this device has a simple structure, is plug-and-play, and can quickly complete the solution preparation work, reducing cumbersome steps in the preparation process, making it more convenient and easier for operators to use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0014] Figure 2 This is an explosion diagram of the device of this utility model;

[0015] Figure 3 This is a schematic diagram of the shell structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the rear shell structure of this utility model;

[0017] Figure 5This is a schematic diagram of the front shell structure of this utility model;

[0018] Figure 6 This is a schematic diagram of the mounting pipe structure of this utility model;

[0019] Figure 7 This is a schematic diagram of the internal structure of the mounting tube of this utility model;

[0020] Figure 8 This is a cross-sectional view of the interior of the casing of this utility model;

[0021] Figure 9 For the present utility model Figure 8 Enlarged view of part A in the middle;

[0022] Explanation of reference numerals in the attached figures:

[0023] 1-Shell, 11-Front shell, 111-Observation port, 112-Slot, 113-Scale line, 12-Rear shell, 121-Card block, 13-Semi-circular groove, 14-Mounting groove, 101-Connecting pipe, 102-Shell body, 103-Connector, 2-Solution bottle, 3-Pipe tip, 4-Mounting pipe, 41-Upper round pipe, 42-Storage pipe, 43-Lower round pipe, 44-Discharge pipe, 45-Stop pipe, 451-Upper stop pipe, 452-Lower stop pipe, 453-Piston pipe, 454-Moving pipe, 455-Baffle, 456-Round hole, 457-Compression spring, 5-Stop rod, 51-Piston, 52-Connecting rod, 53-Moving rod. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to limit the specific scope of the invention.

[0025] See Figures 1 to 9 This utility model provides a solution preparation device with controllable flow rate, comprising: a shell 1, a solution bottle 2, and a pipette tip 3; the shell 1 consists of a connecting pipe 101, a shell body 102, and a connector 103 from top to bottom, and the shell 1 can be disassembled into two parts, namely a front shell 11 and a rear shell 12. The front shell 11 and the rear shell 12 are each provided with an identical semi-circular groove 13, and an installation pipe 4 is installed in the semi-circular groove 13. The connecting pipe 101 is connected to the solution bottle 2, and the connector 103 is connected to the pipette tip 3; it should be noted that, see reference... Figure 2 , Figure 4 , Figure 5 , Figure 6As shown, this device is assembled from several small parts. The mounting tube 4 is the main device for holding the solution. The outer side surrounded by the front shell 11 and the rear shell 12 provides protection. During installation, first, the mounting tube 4 is installed into the semi-circular groove 13 of the rear shell 12. Then, the front shell 11 is snapped onto the rear shell 12, so that the front shell 11 and the rear shell 12 are combined into a shell 1. In this way, the mounting tube 4 can be completely contained in the shell 1. Then, the solution bottle 2 is installed onto the connecting tube 101, and the pipette tip 3 is installed onto the connector 103. This completes the assembly of the entire device.

[0026] The semicircular groove 13 has horizontally opened mounting grooves 14 at the upper and lower positions. The right side of the mounting groove 14 penetrates the shell 102. The shape of the mounting tube 4 matches the semicircular groove 13. The mounting tube 4 consists of an upper circular tube 41, a liquid storage tube 42, a lower circular tube 43, and a liquid outlet tube 44 from top to bottom. The upper circular tube 41 and the lower circular tube 43 are both vertically provided with the same liquid stop tube 45. The liquid stop tube 451 is provided on the upper circular tube 41, and the liquid stop tube 452 is provided on the lower circular tube 43. At the same time, the upper liquid stop tube 451 and the lower liquid stop tube 452 are installed in the mounting groove 14 respectively. The liquid outlet tube 44 is located inside the connector 103.

[0027] It should be noted that, for reference Figure 6 , Figure 7 , Figure 8 As shown, during installation, the mounting tube 4 is completely contained in the semi-circular groove 13, and the stop tubes 45 are respectively clamped in the upper and lower mounting grooves 14. The stop tubes 45 are mainly used to set the stop rod 5. The upper stop tube 451 is mainly responsible for blocking the solution flowing from the upper circular tube 41 of the solution bottle 2. After the upper stop tube 451 is opened, the solution flows directly into the storage tube 42 for temporary storage. The lower stop tube 452 is used to block the solution flowing down in the storage tube 42. When the lower stop tube 452 is opened, the solution in the storage tube 42 can flow out from the outlet tube 44.

[0028] In this embodiment, the stop tube 45 is divided into two sections, separated by a partition 455. The partition 455 is positioned slightly to the right and close to the center. The left side of the partition 455 is a piston tube 453, and the right side is a moving tube 454. A circular hole 456 is provided in the center of the partition 455. A stop rod 5 is installed inside the stop tube 45. The stop rod 5 consists of a piston 51, a connecting rod 52, and a moving rod 53. The piston 51 is slidably disposed inside the piston tube 453, the connecting rod 52 is installed inside the circular hole 456, and the moving rod 53 is slidably disposed inside the moving tube 454. A compression spring 457 is provided between the partition 455 and the moving rod 53.

[0029] In this embodiment, when the compression spring 457 is in its initial state, the piston 51 is located on the right side of the piston tube 453 and close to the partition plate 455. At this time, the piston 51 blocks the passage of the upper round tube 41 and the lower round tube 43. When the moving rod 53 is pressed, the compression spring 457 is compressed, and the piston 51 slides to the left. At this time, the passage of the upper round tube 41 and the lower round tube 43 is opened. The upper round tube 41 is connected to the liquid storage tube 42, and the lower round tube 43 is connected to the liquid outlet tube 44. When the moving rod 53 is released, the compression spring 457 rebounds, and the piston 51 returns to the right side to block the passage of the upper round tube 41 and the lower round tube 43 again.

[0030] It should be noted that, for reference Figure 7 , Figure 8 , Figure 9 As shown, the principle of opening and closing the pipeline by the stop valve 45 is as follows:

[0031] When the compression spring 457 is initially extended, it pushes the moving rod 53 to the right. At this time, the piston 51 is located on the right side of the piston tube 453 and is close to the partition plate 455. Since the upper round tube 41 and the lower round tube 43 are both located at the center of the stop tube 45, the piston 51 blocks the channels of the upper round tube 41 and the lower round tube 43, thus closing the channel from the solution bottle 2 to the storage tube 42 and from the storage tube 42 to the outlet tube 44. When the operator presses the moving rod 53, the moving rod 53 moves to the left and compresses the compression spring 457, pushing the piston 51 to slide to the left. At this time, the piston 51 is no longer in its initial state. In the initial position, the channels of the upper circular tube 41 and the lower circular tube 43 are opened, allowing the solution to flow. That is, the solution in solution bottle 2 can flow to the storage tube 42, and the solution in the storage tube 42 can flow to the outlet tube 44. When the moving rod 53 is released, the compressed spring 457 rebounds quickly, pushing the moving rod 53 to the right. In this way, the moving rod 53 drives the piston 51 to slide to the right. When the compressed spring 457 is fully extended and returns to the initial state, the piston 51 also returns to the initial position and sticks to the partition 455, blocking the channels of the upper circular tube 41 and the lower circular tube 43, cutting off the flow of the solution, and closing the stop tube 45.

[0032] In this embodiment, the front housing 11 has a slot 112 linearly provided at the edge of the shell body 102, and the rear housing 12 has a matching block 112 corresponding to the slot 112. The front housing 11 and the rear housing 12 are installed together by the block 121 fitting into the slot 112.

[0033] In this embodiment, the front housing 11 has an observation port 111 on its shell 102. The liquid storage tube 42 is made of transparent material. The inside of the liquid storage tube 42 can be directly seen through the observation port 111. At the same time, the side of the observation port 111 is provided with scale lines 113 to indicate the volume of liquid inside the liquid storage tube 42.

[0034] In this embodiment, the inner tube of the connecting pipe 101 is provided with an internal thread, and the bottle mouth of the solution bottle 2 is provided with a matching external thread. The solution bottle 2 is installed on the connecting pipe 101 by screwing the external thread and the internal thread together.

[0035] It should be noted that, for reference Figure 1 , Figure 4 , Figure 5 As shown, during installation of housing 1, the front housing 11 and rear housing 12 are installed together by the engagement of the locking block 121 and the locking slot 112. This connection is seamless and ensures that the front housing 11 and rear housing 12 fit together tightly, which also facilitates the subsequent installation of solution bottle 2 and pipette tip 3. In order to observe the internal condition of the liquid storage tube 42 in real time, the observation port 111 is provided for direct observation. The liquid storage tube 42 is made of transparent material, and the amount of solution can be directly seen by checking the scale line 113. By comparison, the volume of solution in the liquid storage tube 42 can be determined, which also facilitates flow control. The amount discharged each time can be controlled through the liquid storage tube 42, realizing the functions of flow regulation and solution measurement. At the same time, this device has a simple structure, is plug-and-play, and can quickly complete the solution preparation work, reducing the tedious steps in the preparation process, making it more convenient and easier for the staff to use.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A flow-controlled solution preparation device, characterized in that, Include: The shell (1), solution bottle (2), suction head (3); the shell (1) is from top to bottom in turn connecting pipe (101), shell body (102), connecting head (103), while the shell (1) can be divided into two pieces, respectively, front shell (11) and rear shell (12), the front shell (11) and rear shell (12) are provided with the same semicircular groove (13) respectively, the semicircular groove (13) is installed with installation pipe (4), the connecting pipe (101) is connected with the solution bottle (2), the connecting head (103) is connected with suction head (3); The upper and lower positions of the semicircular groove (13) are provided with installation groove (14) transversely, the right side of the installation groove (14) penetrates the shell body (102), the shape of the installation pipe (4) is matched with the semicircular groove (13), the installation pipe (4) is from top to bottom in turn upper circular pipe (41), liquid storage pipe (42), lower circular pipe (43), liquid outlet pipe (44), the upper circular pipe (41) and lower circular pipe (43) are vertically provided with the same liquid stop pipe (45), the upper circular pipe (41) is provided with upper liquid stop pipe (451), the lower circular pipe (43) is provided with lower liquid stop pipe (452), and the upper liquid stop pipe (451) and lower liquid stop pipe (452) are correspondingly installed in the installation groove (14), the liquid outlet pipe (44) is arranged in the connecting head (103).

2. A flow controllable solution dispensing device according to claim 1, wherein, The liquid stop pipe (45) is divided into two sections, which are separated by a partition (455), wherein the partition (455) is arranged at a right position and close to the center, the left side of the partition (455) is a piston pipe (453), the right side of the partition (455) is a moving pipe (454), a circular hole (456) is formed in the center of the partition (455), a liquid stop rod (5) is installed in the liquid stop pipe (45), the liquid stop rod (5) is composed of a piston (51), a connecting rod (52) and a moving rod (53), the piston (51) is slidably arranged in the piston pipe (453), the connecting rod (52) is installed in the circular hole (456), the moving rod (53) is slidably installed in the moving pipe (454), and a compression spring (457) is arranged between the partition (455) and the moving rod (53).

3. A flow controllable solution dispensing device according to claim 2, wherein, When the compression spring (457) is in the initial state, the piston (51) is located at the right side of the piston pipe (453) and tightly abuts against the partition (455), at this time, the piston (51) blocks the passages of the upper circular pipe (41) and the lower circular pipe (43), when the moving rod (53) is pressed, the compression spring (457) is compressed, the piston (51) slides to the left, at this time, the passages of the upper circular pipe (41) and the lower circular pipe (43) are opened, the upper circular pipe (41) is communicated with the liquid storage pipe (42), the lower circular pipe (43) is communicated with the liquid outlet pipe (44), the moving rod (53) is released, the compression spring (457) rebounds, and the piston (51) returns to the right side to block the passages of the upper circular pipe (41) and the lower circular pipe (43).

4. A flow controlled solution compounding device according to claim 1, wherein, The shell body (102) of the front shell (11) is linearly provided with a clamping groove (112) at the edge position, the rear shell (12) is provided with a matching clamping block (121) corresponding to the clamping groove (112), and the front shell (11) and the rear shell (12) are installed together by embedding the clamping block (121) and the clamping groove (112).

5. A flow controllable solution dispensing device according to claim 1, wherein, An observation port (111) is formed on the shell body (102) of the front shell (11), the liquid storage tube (42) is made of a transparent tube body, the inside of the liquid storage tube (42) can be directly observed through the observation port (111), and the side of the observation port (111) is provided with a scale line (113) for marking the capacity of the liquid in the liquid storage tube (42).

6. A flow controllable solution dispensing device according to claim 1, wherein, The inner tube of the connecting pipe (101) is provided with an internal thread, the bottle opening of the solution bottle (2) is provided with a matching external thread, and the solution bottle (2) is screwed and installed on the connecting pipe (101) through the external thread and the internal thread.

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