Micro-injection controller device for laboratory

Abstract

The utility model relates to the technical field of experimental instruments, in particular to a micro-injection controller device for a laboratory, which comprises a base station and an injector, a T-shaped block capable of moving up and down is arranged on the base station, the T-shaped block comprises a connecting block and an abutting block, the abutting block is used for pushing a piston handle of the injector, mounting columns are symmetrically arranged on two sides of the connecting block, and the mounting columns are arranged on the base station. Clamping blocks used for clamping the two sides of the end of the piston handle of the injector are arranged on the mounting column, the clamping blocks are used for driving the piston handle of the injector to do drawing movement when the T-shaped block moves downwards, and a clamping assembly used for driving the clamping blocks to conduct clamping is arranged in the mounting column. Through the arrangement of the mounting column, the clamping block and the clamping assembly, when an injector needs to extract a reagent from the outside, the clamping assembly in the mounting column drives the clamping block to clamp the upper side face of a piston handle, a motor drives the clamping block to move downwards so as to drive the piston handle to move downwards, and then the injector can extract the reagent from the outside.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental instruments, in particular to a micro-injection controller device for laboratories. Background Art

[0002] The main way to add materials to organic synthesis units in the laboratory is by syringe pump. The syringe pump is mainly used for the precise delivery of fluids. Usually a syringe is used as a container for the liquid. After the syringe is mounted on the syringe pump, the syringe piston handle is driven by the syringe push seat of the syringe pump to inject or extract the fluid.

[0003] For example, the patent with patent number CN213175954U discloses a laboratory injection pump, including a shell, a propulsion device is arranged on the top of the shell, a clamping device is arranged on the propulsion device, the propulsion device includes two fixed blocks, the two fixed blocks are respectively fixed on both sides of the top of the shell, a linear shaft is arranged between the two fixed blocks, a lead screw is arranged between the two linear shafts, both ends of the lead screw are rotatably connected with the two fixed blocks, a slider is passed through the lead screw, grooves are opened circumferentially on the side surfaces of both ends of one of the linear shafts, washers are sleeved in the grooves, so that the linear shaft is in an elastic floating state, although the injection pump can move radially within a certain range, eliminating operating noise and jamming, and does not affect the balance of the overall sliding of the slider and the stability after loading; however, the device has some shortcomings. In actual use, the propulsion device can only drive the syringe piston handle to do a propulsion movement to inject reagents, and cannot control the problem of the syringe extracting reagents from the outside, so it needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a laboratory microinjection controller device 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 laboratory microinjection controller device comprises a base and a syringe, wherein the base is provided with a T-block which can move up and down, the T-block comprises a connecting block and a stop block, the stop block is used to push the syringe piston handle, mounting columns are symmetrically provided on both sides of the connecting block, the mounting columns are provided with clamping blocks for clamping the two sides of the end of the syringe piston handle, the clamping blocks are used to drive the syringe piston handle to do a pulling and pulling movement when the T-block moves downward, and a clamping assembly for driving the clamping block to clamp is provided in the mounting column.

[0007] Furthermore, a cavity is formed at the top of the mounting column, a blocking cap is provided at the opening of the cavity, an L-shaped groove connected to the cavity is provided on the outer surface of the mounting column, the L-shaped groove includes a vertical groove and an arc groove, the clamping assembly includes a rotatable disc disposed in the cavity, the clamping block is connected to the side wall of the disc and extends out of the arc groove, and a spring is provided in the cavity for pushing the disc to drive the clamping block to clamp the syringe piston handle.

[0008] Furthermore, the disc is provided with a round rod with the upper end extending from the blocking cap, the round rod is used to drive the disc to rotate so that the clamping block slides from the arc groove to the vertical groove, and the top end of the round rod is provided with a rotating rod for rotating the round rod.

[0009] Furthermore, mounting plates are symmetrically arranged on the outer side surface of the base, and a clamping assembly for clamping and fixing the syringe is arranged between the mounting plates.

[0010] Further, the clamping assembly includes a rotatable screw rod disposed on a mounting plate, the screw rod is symmetrically provided with sliders that can move away from or approach each other, the mounting plate is symmetrically provided with limit plates, the limit plates are provided with limit grooves, both sides of the slider are provided with cross bars extending into the corresponding limit grooves, the slider is provided with a connecting rod, the connecting rod is provided with an arc block for clamping and fixing the syringe, and one end of the screw rod is provided with a turntable for driving the screw rod to rotate.

[0011] Furthermore, a cavity is provided in the base, a threaded rod is provided in the cavity, a motor for driving the threaded rod to rotate is provided on the base, a groove body connected to the cavity is provided on the outer side of the base and located at the bottom, and a driving block is threaded on the threaded rod and extends into the groove body for installing a T-block.

[0012] Furthermore, the clamping block is correspondingly provided with a pressing block for pressing both sides of the end of the syringe piston handle.

[0013] Furthermore, a three-way solenoid valve is provided on the base, the liquid outlet of the syringe is connected to the three-way solenoid valve, and a feed pipe and a discharge pipe are provided on the three-way solenoid valve.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model, through the arrangement of the cavity, the plugging cap, the vertical groove, the arc groove, the disc and the spring, when the upper side of the piston handle is clamped, the rotation of the disc drives the clamping block to rotate, so that the clamping block is located in the arc groove, and at the same time the clamping block abuts against the upper side of the piston handle, and the spring pushes the clamping block to clamp the upper side of the piston handle, so that when the clamping block moves downward, it can drive the piston handle to move downward, so that the syringe can extract the reagent from the outside.

[0016] 2. The utility model, through the setting of the connecting rod and the arc block, enables the slider to drive the connecting rod to approach each other, and the connecting rod drives the arc block to approach each other, so that the arc block clamps the syringe. When the syringe needs to be removed, the slider drives the connecting rod to move away from each other to release the fixation of the syringe. The movement of the arc block can adapt to syringes of different apertures, so that laboratory experiments can adapt to syringes of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the overall structure of a laboratory microinjection controller device.

[0018] Figure 2 It is a cross-sectional view of the base in the utility model.

[0019] Figure 3 It is a structural schematic diagram of the mounting column and the clamping assembly in the utility model.

[0020] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of part A.

[0021] The meanings of the numbers in the figure are as follows: 1. base; 2. syringe; 3. connecting block; 4. stop block; 5. piston handle; 6. mounting column; 7. clamping block; 100. plugging cap; 102. vertical groove; 103. arc groove; 104. disc; 105. spring; 106. round rod; 107. rotating rod; 108. pressing block; 200. mounting plate; 201. screw rod; 202. slider; 203. limit plate; 204. cross bar; 205. connecting rod; 206. arc block; 207. turntable; 300. threaded rod; 301. motor; 302. trough body; 303. drive block; 8. three-way solenoid valve; 9. feed pipe; 10. discharge pipe. DETAILED DESCRIPTION

[0022] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0023] The following is combined with Figure 1-Figure 4 This embodiment is described in further detail.

[0024] See also Figure 1-Figure 4A laboratory microinjection controller device in this embodiment includes a base 1 and a syringe 2. A T-block that can move up and down is provided on the base 1. The T-block includes a connecting block 3 and a stop block 4. The stop block 4 is used to push the piston handle 5 of the syringe 2. Mounting columns 6 are symmetrically provided on both sides of the connecting block 3. The mounting columns 6 are provided with clamping blocks 7 for clamping both sides of the end of the piston handle 5 of the syringe 2. The clamping block 7 is used to drive the piston handle 5 of the syringe 2 to make a pulling movement when the T-block moves downward. A clamping assembly for driving the clamping block 7 to clamp the piston handle 5 of the syringe 2 is provided in the mounting column 6.

[0025] In this embodiment, a cavity is opened in the base 1, a threaded rod 300 is arranged in the cavity, a motor 301 for driving the threaded rod 300 to rotate is arranged on the base 1, a groove 302 connected to the cavity is opened at the lower end of one side wall of the base 1, and a driving block 303 for installing a T-block is arranged on the threaded rod 300 and extends into the groove 302.

[0026] In this embodiment, a three-way solenoid valve 8 is provided on the outer surface of the base 1 , the liquid outlet of the syringe 2 is connected to the three-way solenoid valve 8 , and a feed pipe 9 and a discharge pipe 10 are provided on the three-way solenoid valve 8 .

[0027] In this embodiment, through the arrangement of the T-block, the threaded rod 300, the motor 301, the slot body 302 and the driving block 303, the T-block is fixedly connected to the driving block 303, the driving block 303 is threadedly connected to the threaded rod 300, and the threaded rod 300 is driven to rotate by the motor 301. Since the slot body 302 acts as a limit for the driving block 303, the rotation of the threaded rod 300 drives the driving block 303 to move up and down, and then drives the T-block to move up and down, so as to drive the piston handle 5 of the syringe 2 to move up and down;

[0028] In this embodiment, the syringe 2 can be installed on the outer surface of the base 1 through the arrangement of the base 1, the syringe 2, the connecting block 3, the stop block 4, the mounting column 6, the clamping block 7 and the clamping assembly. When the syringe 2 is injecting, the stop block 4 contacts the end of the piston handle 5 of the syringe 2, and the stop block 4 moves upward to push the piston handle 5 upward, thereby injecting the reagent; wherein, since the mounting column 6 is fixedly connected to the connecting block 3, when the syringe 2 needs to extract the reagent from the outside, the clamping assembly in the mounting column 6 drives the clamping block 7 to clamp the upper end surface of the piston handle 5 and the two sides, thereby better realizing the clamping and fixing of the piston handle 5 on the T-block. At this time, the motor 301 drives the clamping block 7 to move downward, which can drive the piston handle 5 to move downward, and the syringe 2 can extract the reagent from the outside.

[0029] In this embodiment, through the arrangement of the three-way solenoid valve 8, the feed pipe 9 and the discharge pipe 10, one end of the feed pipe 9 is connected to the external reagent bottle, and one end of the discharge pipe 10 is connected to the reaction bottle. When the clamping block 7 clamps the piston handle 5 and moves it downward, the three-way solenoid valve 8 is controlled so that the syringe 2 can extract the reagent from the external reagent bottle through the feed pipe 9. After the extraction is completed, the stop block 4 drives the piston handle 5 to move upward, and at the same time controls the three-way solenoid valve 8, so that the syringe 2 can inject the reagent into the reaction bottle through the discharge pipe 10. Therefore, the micro-syringe control device solves the problem that the existing propulsion device can only drive the piston handle 5 of the syringe 2 to do a propulsion movement to inject the reagent, but cannot control the syringe 2 to extract the reagent from the outside.

[0030] See also Figure 1-Figure 4 In this embodiment, a cavity is provided at the top of the mounting column 6, a blocking cap 100 is provided at the opening of the cavity, an L-shaped groove connected to the cavity is provided on the surface of the mounting column 6, the L-shaped groove includes a vertical groove 102 and an arc groove 103, the clamping assembly includes a rotatable disc 104 arranged in the cavity, the clamping block 7 is connected to the side wall of the disc 104 and extends out from the arc groove 103, and a spring 105 is provided in the cavity for pushing the disc 104 downward to drive the clamping block 7 to clamp.

[0031] In this embodiment, the disc 104 is provided with a round rod 106 whose upper end extends from the plugging cap 100. The round rod 106 is used to drive the disc 104 to rotate, so that the clamping block 7 slides from the arc groove 103 to the vertical groove 102, thereby facilitating the control of the clamping block 7 to clamp. Among them, the top of the round rod 106 is provided with a rotating rod 107 for rotating the round rod 106. The rotating rod 107 is preferably used to facilitate the operator to rotate the disc.

[0032] In this embodiment, the plugging cap 100 is threadedly connected to the cavity through the arrangement of the cavity, the plugging cap 100, the vertical groove 102, the arc groove 103, the disk 104 and the spring 105, so that the plugging cap 100 can be disassembled and assembled at the opening of the cavity, thereby installing the internal components of the cavity; wherein, the side wall of the disk 104 is slidably connected to the inner wall of the cavity, the spring 105 is arranged between the plugging cap 100 and the disk 104, the clamping block 7 and the disk 104 are fixedly connected, and when it is necessary to clamp the two sides of the upper end surface of the piston handle 5, the rotation of the disk 104 drives the clamping block 7 to rotate, so that the clamping block 7 slides from the vertical groove 102 into the arc groove 103, so that the clamping block 7 is against the upper side surface of the piston handle 5, and the spring 105 pushes the clamping block 7 to clamp the upper side surface of the piston handle 5, so that when the clamping block 7 moves downward, it can drive the piston handle 5 to move downward to extract reagents from the outside.

[0033] In this embodiment, the spring 105 can press the disc 104 , so that the clamping block 7 clamps and fixes the piston handle 5 more stably.

[0034] See also Figure 1-Figure 4 In this embodiment, mounting plates 200 are symmetrically arranged on the outer side surface of the base 1, and a clamping assembly for clamping and fixing the syringe 2 is arranged between the mounting plates 200.

[0035] In this embodiment, the clamping assembly includes a screw rod 201 which is rotatable and is arranged on the mounting plate 200, and sliders 202 which can move away from or approach each other are symmetrically arranged on the screw rod 201, and limit plates 203 are symmetrically arranged on the mounting plate 200, and limit grooves are provided on the limit plates 203. Both sides of the slider 202 are provided with cross bars 204 extending into the corresponding limit grooves, and the slider 202 is provided with a connecting rod 205, and the connecting rod 205 is provided with an arc block 206 for clamping and fixing the syringe 2, and one end of the screw rod 201 is provided with a turntable 207 for driving the screw rod 201 to rotate.

[0036] In this embodiment, by setting the mounting plate 200, the screw rod 201, the slider 202, the limiting plate 203, the limiting groove, the cross bar 204 and the turntable 207, the screw rod 201 is rotatably connected to the mounting plate 200, the limiting plate 203 is fixedly connected to the mounting plate 200, the cross bar 204 is fixedly connected to the slider 202, the part of the cross bar 204 extending into the limiting groove is slidingly connected to the limiting groove, the slider 202 is threadedly connected to the screw rod 201, and the screw rod 201 is provided with threads in opposite directions. The screw rod 201 is driven to rotate by rotating the turntable 207. Since the limiting groove limits the cross bar 204, the rotation of the screw rod 201 can drive the sliders 202 to move away from or closer to each other.

[0037] In this embodiment, by setting the connecting rod 205 and the arc block 206, the connecting rod 205 is fixedly connected to the slider 202, and the arc block 206 is fixedly connected to the connecting rod 205. When the syringe 2 is installed and fixed on the base 1, the slider 202 drives the connecting rod 205 to approach each other, and the connecting rod 205 drives the arc block 206 to approach each other, so that the arc block 206 clamps the syringe 2. When the syringe 2 needs to be removed, the slider 202 drives the connecting rod 205 away from each other to release the fixation of the syringe 2. The movement of the arc block 206 can adapt to syringes 2 of different apertures, so that laboratory experiments can adapt to syringes 2 of different sizes.

[0038] In this embodiment, an anti-slip pad is provided on the arc block 206 to make the installation of the syringe 2 more stable. Multiple groups of clamping components can be provided to enhance the stability of the syringe 2.

[0039] See also Figure 1-Figure 4 In this embodiment, a pressing block 108 for pressing the two sides of the end of the piston handle 5 of the syringe 2 is correspondingly provided on the clamping block 7.

[0040] In this embodiment, the pressure block 108 is fixedly connected to the clamping block 7 by the setting of the pressure block 108. The contact area with both sides of the end of the piston handle 5 is increased by the pressure block 108, so that the clamping block 7 can more stably drive the piston handle 5 to move downward.

[0041] In this embodiment, an anti-skid pad is provided on the pressing block 108 so that it can be better fixed on both sides of the end of the piston handle 5.

[0042] Working principle: When the laboratory microinjection controller device is in use, the liquid outlet of the syringe 2 is connected to the three-way solenoid valve 8, so that the end of the piston handle 5 contacts the stop block 4, and then the rotating rod 107 is rotated to drive the disc 104 to rotate, and the disc 104 drives the clamping block 7 to rotate so that the pressing block 108 is pressed tightly against the upper side of the piston handle 5. The rotating disk 207 drives the sliders 202 to approach each other, and the sliders 202 drive the connecting rods 205 to approach each other, and the connecting rods 205 drive the arc blocks 206 to approach each other, so that the arc blocks 206 clamp and fix the syringe 2, and then the motor 301 is started, and the motor 301 drives the threaded rod 300 to rotate, and the threaded rod 300 drives the T-block to move up and down, which can drive the piston handle 5 to extract or inject the reagent.

[0043] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A laboratory microinjection controller device, comprising a base station (1) and a syringe (2), characterized in that: The base (1) is provided with a T-shaped block that can move up and down, and the T-shaped block includes a connecting block (3) and a stop block (4). The stop block (4) is used to push the piston handle (5) of the syringe (2). The connecting block (3) is symmetrically provided with mounting columns (6) on both sides. The mounting columns (6) are provided with clamping blocks (7) for clamping the two sides of the end of the piston handle (5) of the syringe (2). The clamping blocks (7) are used to drive the piston handle (5) of the syringe (2) to make a pulling and pulling movement when the T-shaped block moves downward. The mounting columns (6) are provided with a clamping assembly for driving the clamping blocks (7) to clamp.

2. A laboratory microinjection controller device according to claim 1, characterized in that: A cavity is formed at the top of the mounting column (6), a plugging cap (100) is provided at the opening of the cavity, an L-shaped groove connected to the cavity is provided on the outer surface of the mounting column (6), the L-shaped groove includes a vertical groove (102) and an arc groove (103), the clamping assembly includes a rotatable disc (104) disposed in the cavity, the clamping block (7) is connected to the side wall of the disc (104) and extends out from the arc groove (103), and a spring (105) is provided in the cavity for pushing the disc (104) to drive the clamping block (7) to clamp the piston handle (5) of the syringe (2).

3. A laboratory microinjection controller device according to claim 2, characterized in that: The disc (104) is provided with a round rod (106) whose upper end extends from the blocking cap (100). The round rod (106) is used to drive the disc (104) to rotate so that the clamping block (7) slides from the arc groove (103) to the vertical groove (102). The top end of the round rod (106) is provided with a rotating rod (107) for rotating the round rod (106).

4. A laboratory microinjection controller device according to claim 1, characterized in that: Mounting plates (200) are symmetrically arranged on the outer side surface of the base (1), and a clamping assembly for clamping and fixing the syringe (2) is arranged between the mounting plates (200).

5. A laboratory microinjection controller device according to claim 4, characterized in that: The clamping assembly comprises a screw rod (201) which is rotatably arranged on a mounting plate (200), the screw rod (201) is symmetrically provided with sliders (202) which can move away from or approach each other, the mounting plate (200) is symmetrically provided with limit plates (203), the limit plates (203) are provided with limit grooves, both sides of the slider (202) are provided with cross bars (204) which extend into the corresponding limit grooves, the slider (202) is provided with a connecting rod (205), the connecting rod (205) is provided with an arc block (206) for clamping and fixing the syringe (2), and one end of the screw rod (201) is provided with a turntable (207) for driving the screw rod (201) to rotate.

6. A laboratory microinjection controller device according to claim 1, characterized in that: The base (1) has a cavity formed therein, a threaded rod (300) is formed therein, the base (1) has a motor (301) for driving the threaded rod (300) to rotate, the base (1) has a groove (302) in communication with the cavity formed therein, and the threaded rod (300) has a driving block (303) threadedly formed thereon and extending into the groove (302) for mounting a T-block.

7. A laboratory microinjection controller device according to claim 1, characterized in that: The clamping block (7) is correspondingly provided with a pressing block (108) for pressing the two sides of the end of the piston handle (5) of the syringe (2).

8. A laboratory microinjection controller device according to claim 1, characterized in that: A three-way solenoid valve (8) is provided on the base (1), the liquid outlet of the syringe (2) is connected to the three-way solenoid valve (8), and a feed pipe (9) and a discharge pipe (10) are provided on the three-way solenoid valve (8).

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