Intelligent liquid injection device for injector

Abstract

The utility model provides an intelligent liquid injection device for an injector, which relates to the technical field of liquid injection equipment and comprises a first base, a test tube fixing seat, a second base and a liquid injection mechanism, the test tube fixing seat is arranged on the first base and provided with a fixing hole, and the liquid injection mechanism is arranged on the second base and provided with a fixing hole. The liquid injection mechanism is located above the test tube fixing seat and comprises a clamping assembly and a pushing assembly, the clamping assembly is used for fixing an injector above the fixing hole, the pushing assembly comprises a pushing driving part and a pushing head, and the pushing driving part is used for driving the pushing head to move towards the clamping assembly; therefore, the push head can push a piston push rod of the injector fixed in the clamping assembly. Therefore, after the test tube and the injector are effectively fixed, the push head can accurately push the piston push rod of the injector according to an external control signal by pushing the driving piece, so that liquid in the injector can be quantitatively injected into the test tube, and accurate quantitative control can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid injection equipment, in particular to an intelligent liquid injection device for a syringe. Background Art

[0002] In the laboratory, when quantitatively mixing the test solution, a syringe is often needed. For example, the test solution to be mixed is placed in a syringe and a test tube in advance. When quantitatively mixing, the staff needs to align the liquid outlet of the syringe head with the test tube, and then manually push the piston push rod at the tail of the syringe to allow the liquid in the syringe barrel to be injected into the test tube through the liquid outlet. The staff will achieve quantitative control according to the scale lines on the syringe.

[0003] However, due to the differences in the specifications and sizes of syringes, and the difficulty in controlling the thrust applied by the staff when pushing the piston push rod at the end of the syringe, it is impossible to accurately control the amount of liquid discharged from the syringe. Moreover, with the development of automation, the manual quantitative mixing of test solutions can no longer meet the automation requirements of the entire process of the laboratory. Utility Model Content

[0004] The utility model provides an intelligent liquid injection device for a syringe, which is used to solve the defects in the prior art that quantitative control cannot be achieved when quantitative mixing of test solutions is manually performed using a syringe, and the manual operation method cannot meet the automation use requirements of the entire process of the laboratory.

[0005] The utility model provides an intelligent liquid injection device for a syringe, comprising: a first base, a test tube fixing base, a second base and a liquid injection mechanism, wherein the test tube fixing base is arranged on the first base, the test tube fixing base is provided with a fixing hole for fixing the test tube, the liquid injection mechanism is arranged on the second base, and the liquid injection mechanism is located above the test tube fixing base.

[0006] The liquid injection mechanism comprises:

[0007] A clamping assembly, the clamping assembly is used to fix the syringe above the fixing hole,

[0008] The pushing assembly comprises a pushing driving member and a pushing head, wherein the pushing driving member is used to drive the pushing head to move toward the clamping assembly so that the pushing head can push the piston push rod of the syringe fixed in the clamping assembly.

[0009] According to an intelligent liquid injection device for a syringe provided by the utility model, the clamping assembly includes a transverse slide rail, a first clamping seat, a second clamping seat and a clamping drive component, the transverse slide rail is extended in a horizontal direction, the first clamping seat and the second clamping seat are movably arranged on the transverse slide rail, and the clamping drive component is used to drive the first clamping seat and the second clamping seat to move closer to or away from each other.

[0010] According to an intelligent liquid injection device for a syringe provided by the utility model, a first arc-shaped groove is provided on the side wall of the first clamping seat facing the second clamping seat, and a second arc-shaped groove is provided on the side wall of the second clamping seat facing the first clamping seat, and the first arc-shaped groove and the second arc-shaped groove are used to clamp the syringe.

[0011] According to the utility model, an intelligent liquid injection device for a syringe also includes a moving mechanism, which is arranged on the second base, the liquid injection mechanism is connected to the moving mechanism, and the moving mechanism is used to drive the liquid injection mechanism to approach or move away from the test tube fixing seat.

[0012] According to the intelligent liquid injection device for a syringe provided by the utility model, the moving mechanism includes a horizontal servo slide and a vertical servo slide.

[0013] Among them, the horizontal servo slide is connected to the second base, the vertical servo slide is connected to the horizontal servo slide, the horizontal servo slide is used to drive the vertical servo slide to move in the horizontal direction toward the test tube fixing seat, and the injection mechanism is connected to the vertical servo slide, and the vertical servo slide is used to drive the injection mechanism to move in the vertical direction toward the test tube fixing seat.

[0014] According to the intelligent liquid injection device for a syringe provided by the utility model, the test tube fixing seat is also provided with a silicone sheet, and the fixing hole is provided on the silicone sheet.

[0015] According to an intelligent liquid injection device for a syringe provided by the utility model, the silicone sheet is provided with a plurality of open grooves connected to the fixing hole, and the plurality of open grooves are arranged at intervals along the circumferential direction of the fixing hole.

[0016] According to the intelligent liquid injection device for a syringe provided by the utility model, there are multiple silicone sheets, and the multiple silicone sheets are arranged at intervals along the vertical direction, and the fixing holes on each silicone sheet correspond to each other in the vertical direction.

[0017] According to the intelligent liquid injection device for a syringe provided by the utility model, a sensor is arranged inside the test tube fixing seat, and the sensor is used to sense whether a test tube is placed in the fixing hole.

[0018] According to the intelligent liquid injection device for a syringe provided by the utility model, the sensor is arranged at the bottom of the fixing hole, and the sensor has a sensing spring. When the test tube is placed in the fixing hole, the bottom end of the test tube can touch the sensing spring.

[0019] The intelligent liquid injection device for syringes provided by the utility model can, after the test tube and the syringe are effectively fixed, push the driving part to allow the push head to accurately push the piston push rod of the syringe according to the external control signal, so that the liquid in the syringe can be quantitatively injected into the test tube, and accurate quantitative control can be achieved. Moreover, since the device does not require manual operation, it can be set as a part of the automation system, which can achieve quantitative injection and servo control, improve efficiency and sampling accuracy, can be better integrated into the intelligent system, and can effectively meet the automation use requirements of the entire process of the laboratory. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic structural diagram of an intelligent liquid injection device for a syringe according to one embodiment of the utility model.

[0022] Figure 2 yes Figure 1 A structural schematic diagram of the intelligent liquid injection device from another perspective is shown in FIG.

[0023] Figure 3 yes Figure 1 A schematic structural diagram of the clamping assembly in the intelligent liquid injection device is shown in FIG.

[0024] Figure 4 yes Figure 1 A schematic diagram of the structure of a test tube fixing seat in the intelligent liquid injection device is shown in FIG.

[0025] Figure 5 yes Figure 4 A cutaway view of the test tube holder shown in FIG.

[0026] Reference numerals:

[0027] 100, first base; 200, test tube fixing seat; 210, fixing hole; 220, silicone sheet; 230, opening slot; 240, sensor; 300, second base; 400, liquid injection mechanism; 410, clamping assembly; 411, transverse slide rail; 412, first clamping seat; 413, second clamping seat; 414, clamping drive; 420, pushing assembly; 421, pushing drive; 422, pushing head; 500, moving mechanism; 510, horizontal servo slide; 520, vertical servo slide. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are 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.

[0029] In one embodiment of the present invention, a smart injection device for a syringe is provided, the smart injection device comprises an injection mechanism, a clamping component in the injection mechanism can fix the syringe, and a pushing component in the injection mechanism can push the piston push rod of the syringe. The smart injection device can be used to automatically control the liquid in the syringe to be injected into the test tube. Figures 1 to 5 The figure further describes the intelligent injection device for the syringe in this embodiment.

[0030] Specifically, if Figure 1 and Figure 2 As shown, the intelligent liquid injection device for a syringe in this embodiment includes: a first base 100 , a test tube fixing base 200 , a second base 300 and a liquid injection mechanism 400 .

[0031] The test tube fixing seat 200 is disposed on the first base 100 , and is provided with a fixing hole 210 for fixing the test tube. The liquid injection mechanism 400 is disposed on the second base 300 , and is located above the test tube fixing seat 200 .

[0032] The injection mechanism 400 includes a clamping assembly 410 and a pushing assembly 420 .

[0033] The clamping assembly 410 is used to fix the syringe above the fixing hole 210, and the pushing assembly 420 includes a pushing drive 421 and a pushing head 422. The pushing drive 421 is used to drive the pushing head 422 to move toward the clamping assembly 410 so that the pushing head 422 can push the piston push rod of the syringe fixed in the clamping assembly 410.

[0034] Exemplarily, the first base 100 and the test tube fixing base 200 are used to fix the test tube. Figure 1 and Figure 2 As shown, the first base 100 may be a platform-like structure made of metal or non-metallic material, which can effectively support the test tube fixing base 200. The first base 100 may be fixed on the workbench by means of bolts and other structures.

[0035] The test tube fixing seat 200 is used to fix the test tube. The test tube fixing seat 200 can be made of metal or non-metallic material. For example, the test tube fixing seat 200 can be a cylindrical structure made of hard materials such as plastic, which can be fixed on the top of the first base 100 with the help of bolts and other structures. A fixing hole 210 is also provided on the top of the test tube fixing seat 200, and the test tube can be fixedly inserted in the fixing hole 210 in the vertical direction.

[0036] Exemplarily, the second base 300 and the injection mechanism 400 are used to fix the syringe and drive the piston push rod of the syringe so that the liquid in the syringe can enter the test tube. Figure 1 and Figure 2 As shown, the second base 300 may be a support structure made of metal or non-metal material, which can effectively support the injection mechanism 400. The second base 300 may also be fixed on the workbench by means of bolts or other structures.

[0037] In a specific embodiment, the second base 300 may include: a bottom plate, two vertical plates, and a mounting plate, wherein the two vertical plates are arranged in parallel and spaced apart on the top of the bottom plate, and the mounting plate is parallel to the bottom plate and connected to the tops of the two vertical plates. In actual use, the bottom plate may be fixed on a workbench by means of bolts or other structures, and the injection mechanism 400 may be arranged on the mounting plate.

[0038] Furthermore, in this embodiment, the liquid injection mechanism 400 is used to fix the syringe above the test tube, and it can also push the piston push rod of the syringe downward so that the liquid in the syringe can be injected into the test tube.

[0039] It can be understood that the syringe includes: a piston cylinder and a piston push rod, the piston cylinder has a liquid storage cavity, the rear of the piston cylinder has a plug hole, the piston push rod can be inserted into the piston cylinder from the rear of the piston cylinder, and the head of the piston cylinder has a liquid outlet, which is connected to the liquid storage cavity. During use, when it is necessary to absorb liquid, the liquid outlet can be placed in the liquid, and the piston push rod can be moved in a direction away from the head of the piston cylinder to absorb the liquid into the liquid storage cavity of the piston cylinder. When it is necessary to release the liquid, the piston push rod can be moved in a direction close to the head of the piston cylinder to discharge the liquid from the liquid outlet.

[0040] In this embodiment, the clamping assembly 410 can clamp the piston barrel of the syringe and allow the syringe to extend in a vertical direction and allow the head of the syringe to be located above the fixing hole 210 so that the liquid in the syringe can enter the test tube.

[0041] like Figure 1 and Figure 2 As shown, the pushing assembly 420 includes a pushing driving member 421 and a pushing head 422 . The pushing driving member 421 can drive the pushing head 422 to move toward the clamping assembly 410 , so that the pushing head 422 can push the piston push rod of the syringe.

[0042] Exemplarily, the push drive 421 can be a servo motor, a hydraulic cylinder or a servo slide, etc. The push drive 421 can be electrically connected to an external control device, which can accurately push the push head 422 toward the clamping assembly 410 through the received control signal, so that the push head 422 can accurately push the piston push rod of the syringe, and finally the liquid in the syringe can be quantitatively injected into the test tube.

[0043] As an implementation method, the push assembly 420 also includes a ball screw structure, and the push drive member 421 can be a servo motor, the output end of the servo motor is connected to the threaded rod of the ball screw structure, the push head 422 is connected to the sliding seat of the ball screw structure, and the sliding seat is threadedly connected to the threaded rod. At this time, according to the external control signal, the servo motor can accurately drive the threaded rod to rotate to drive the sliding seat to move downward, and then the push head 422 can be accurately controlled to push the piston push rod of the syringe downward, and finally the amount of liquid injected into the test tube by the syringe can be effectively controlled.

[0044] Exemplarily, a push plate is provided at the end of the push head 422 facing the fixing hole 210. When the push head 422 moves downward toward the fixing hole 210, the push plate can abut against the tail of the piston push rod of the syringe. Since the piston cylinder of the syringe is fixed to the clamping assembly 410, during the downward movement of the push head 422, the piston push rod of the syringe can continue to move downward relative to the piston cylinder, thereby squeezing out the liquid in the piston cylinder.

[0045] When actually performing quantitative mixing of liquids, the test tube can be first inserted into the fixing hole 210 of the test tube fixing seat 200, and then the syringe can be fixed to the clamping assembly 410. At this time, the head of the syringe is facing the test tube, and then, under the control of an external signal, the driving member 421 can accurately control the push head 422 to push the piston push rod of the syringe, so that the liquid in the syringe can finally enter the test tube quantitatively.

[0046] It can be seen that, with the help of the intelligent liquid injection device for syringes in this embodiment, after the test tube and the syringe are effectively fixed, the driving member 421 can accurately push the piston push rod of the syringe according to the external control signal, so that the liquid in the syringe can be quantitatively injected into the test tube, and accurate quantitative control can be achieved. Moreover, since the device does not require manual operation, it can be set as a part of the automation system, which can achieve quantitative injection and servo control, improve efficiency and sampling accuracy, can be better integrated into the intelligent system, and can effectively meet the automation use requirements of the entire process of the laboratory.

[0047] Further, in order to effectively clamp the syringe, in one embodiment, as Figure 3 As shown, the clamping assembly 410 includes a transverse slide rail 411, a first clamping seat 412, a second clamping seat 413 and a clamping drive 414. The transverse slide rail 411 is extended in a horizontal direction, the first clamping seat 412 and the second clamping seat 413 are movably arranged on the transverse slide rail 411, and the clamping drive 414 is used to drive the first clamping seat 412 and the second clamping seat 413 to move closer to or away from each other.

[0048] Exemplarily, the transverse slide rail 411 can be extended substantially in the horizontal direction, and a U-shaped slide groove is provided on the side of the transverse slide rail 411, and the first clamping seat 412 and the second clamping seat 413 can be movably provided in the U-shaped slide groove. Moreover, in order to prevent the first clamping seat 412 and the second clamping seat 413 from falling off from the U-shaped slide groove, the upper and lower inner walls opposite to each other in the U-shaped slide groove are provided with limiting grooves extending in the horizontal direction, and the upper and lower outer walls of the first clamping seat 412 and the second clamping seat 413, which are respectively placed in the U-shaped slide groove, are respectively provided with limiting flanges, and the limiting flanges can be clamped in the limiting grooves.

[0049] The clamping drive member 414 may be a cylinder having an output shaft that can extend outward or retract inward. There are two clamping drive members 414, which are fixedly arranged on the transverse slide rail 411 by means of bolts or other structures, and the output shafts of the two clamping drive members 414 are respectively connected to the first clamping seat 412 and the second clamping seat 413. Thus, the first clamping seat 412 and the second clamping seat 413 can be driven to move on the transverse slide rail 411 by means of the two clamping drive members 414.

[0050] In actual use, the clamping drive 414 can drive the first clamping seat 412 and the second clamping seat 413 to approach each other or move away from each other. When the first clamping seat 412 and the second clamping seat 413 are close to each other, the syringe can be clamped between the first clamping seat 412 and the second clamping seat 413. When the first clamping seat 412 and the second clamping seat 413 are away from each other, the syringe can be removed.

[0051] Further, in order to conveniently hold the cylindrical syringe, as Figure 3 As shown, a first arcuate groove is provided on the side wall of the first clamping seat 412 facing the second clamping seat 413, and a second arcuate groove is provided on the side wall of the second clamping seat 413 facing the first clamping seat 412. The first arcuate groove and the second arcuate groove are used to clamp the syringe.

[0052] Exemplarily, the first arc groove and the second arc groove are both extended in the vertical direction, and the cross-sections of the first arc groove and the second arc groove are both arc-shaped. When the first clamping seat 412 and the second clamping seat 413 are close to each other, the first arc groove and the second arc groove can simultaneously abut against the outer wall surface of the syringe, thereby effectively clamping the syringe.

[0053] In one embodiment, in order to prevent the syringe from falling off between the first arc groove and the second arc groove, the inner wall surfaces of the first arc groove and the second arc groove can also be provided with an anti-slip surface, which can increase the friction force when the first arc groove and the second arc groove contact the outer wall surface of the syringe.

[0054] Furthermore, in this embodiment, the intelligent liquid injection device also includes a moving mechanism 500, which is disposed on the second base 300, and the liquid injection mechanism 400 is connected to the moving mechanism 500, and the moving mechanism 500 is used to drive the liquid injection mechanism 400 to approach or move away from the test tube fixing seat 200.

[0055] It can be understood that the liquid injection mechanism 400 can be disposed on the second base 300 via the moving mechanism 500 , and the moving mechanism 500 can drive the liquid injection mechanism 400 to move.

[0056] In actual use, the moving mechanism 500 can be used to first position the injection mechanism 400 away from the test tube mounting seat to reserve enough space for installing the test tube. When mixing the solutions, the moving mechanism 500 can be used to position the injection mechanism 400 close to the test tube mounting seat so that the liquid in the syringe can be effectively injected into the test tube.

[0057] In a specific embodiment, as 1 and Figure 2 As shown, the moving mechanism 500 includes a horizontal servo slide 510 and a vertical servo slide 520 .

[0058] Among them, the horizontal servo slide 510 is connected to the second base 300, the vertical servo slide 520 is connected to the horizontal servo slide 510, the horizontal servo slide 510 is used to drive the vertical servo slide 520 to move in the horizontal direction toward the test tube fixing seat, and the injection mechanism 400 is connected to the vertical servo slide 520, and the vertical servo slide 520 is used to drive the injection mechanism 400 to move in the vertical direction toward the test tube fixing seat.

[0059] Exemplarily, the horizontal servo slide 510 can be fixed on the second base 300 by means of bolts and other structures, a horizontal slide is arranged on the top of the horizontal servo slide 510, and the horizontal servo slide 510 can drive the horizontal slide to move in the horizontal direction, the vertical servo slide 520 can be fixed on the horizontal slide by means of bolts and other structures, a vertical slide is arranged on the side of the vertical servo slide 520, and the vertical servo slide 520 can drive the vertical slide to move in the vertical direction, and the injection mechanism 400 is fixed on the vertical slide.

[0060] Therefore, with the help of the horizontal servo slide 510 and the vertical servo slide 520 , the liquid injection mechanism 400 can be moved in the horizontal direction and the vertical direction, so that the liquid injection mechanism 400 can be close to or away from the test tube fixing seat 200 .

[0061] Further, in one embodiment, in order to enable the test tube holder 200 to effectively fix the test tube, as Figure 4 and Figure 5 As shown, the test tube fixing seat 200 is further provided with a silicone sheet 220 , and the fixing hole 210 is provided on the silicone sheet 220 .

[0062] Exemplarily, the silicone sheet 220 can be roughly arranged in a horizontal plane, and a through hole is arranged in the middle of the silicone sheet 220 , and the through hole is the fixing hole 210 , and the test tube can be inserted into the fixing hole 210 .

[0063] It can be understood that since the silicone sheet 220 has a certain deformation ability, the radial dimension of the fixing hole 210 can be slightly smaller than the outer diameter of the test tube. When the test tube is inserted into the fixing hole 210, the fixing hole 210 can be squeezed to become larger. At this time, the silicone sheet 220 can fit tightly to the outer wall of the test tube, thereby effectively fixing the test tube.

[0064] In one embodiment, in order to facilitate the removal of the test tube from the silicone sheet 220, as shown in FIG. Figure 4 As shown, the silicone sheet 220 is provided with a plurality of open grooves 230 connected to the fixing hole 210 , and the plurality of open grooves 230 are arranged at intervals along the circumferential direction of the fixing hole 210 .

[0065] Exemplarily, the opening grooves 230 can be arranged at intervals along the circumferential direction of the fixing hole 210. For example, in this embodiment, the number of the opening grooves 230 is four, and the four opening grooves 230 are evenly spaced on the circumferential side of the fixing hole 210. One side of the opening groove 230 is connected to the fixing hole 210, and the other side extends outward along the radial direction of the fixing hole 210.

[0066] Therefore, after the test tube is inserted into the fixing hole 210, since the aperture of the fixing hole 210 is smaller than the outer diameter of the test tube, the silicone between the adjacent opening grooves 230 can easily produce elastic deformation and can effectively abut against the outer wall of the test tube, so that the test tube can be effectively positioned. Moreover, when the test tube needs to be taken out, it is only necessary to pull the test tube out from the fixing hole 210. At this time, the silicone between the adjacent opening grooves 230 can also easily produce elastic deformation, which will not hinder the removal of the test tube.

[0067] In one embodiment, in order to better fix the test tube, as Figure 5 As shown, there are multiple silicone sheets 220, and the multiple silicone sheets 220 are arranged at intervals in the vertical direction, and the fixing holes 210 on each silicone sheet 220 correspond in the vertical direction. Exemplarily, the test tube holder 200 can be provided with three or other numbers of silicone sheets 220, and the fixing holes 210 on these silicone sheets 220 are coaxially arranged in the vertical direction.

[0068] Therefore, when installing the test tube, the test tube can be inserted into the fixing holes 210 of multiple silicone sheets 220 from top to bottom in sequence. With the help of the multiple silicone sheets 220, the test tube can be ensured to be in a vertical state, and at the same time, the test tube can be stably placed in the test tube fixing seat 200.

[0069] In one embodiment, in order to effectively sense whether a test tube is placed in the fixing hole 210 of the test tube fixing seat 200, as shown in FIG. Figure 5 As shown, a sensor 240 is disposed inside the test tube fixing seat 200 , and the sensor 240 is used to sense whether a test tube is placed in the fixing hole 210 .

[0070] Exemplarily, the sensor 240 may be a photoelectric sensor 240 or a displacement sensor 240 , etc. After the test tube is inserted into the fixing hole 210 , the test tube can trigger the sensor 240 , and the sensor 240 can then send a signal to an external control device.

[0071] As a specific implementation method, Figure 5 As shown, the sensor 240 is arranged at the bottom of the fixing hole 210 , and the sensor 240 has a sensing spring. When the test tube is placed in the fixing hole 210 , the bottom end of the test tube can touch the sensing spring.

[0072] It is understandable that the sensor 240 can output different signals by sensing the position state of the spring.

[0073] In actual use, when no test tube is placed in the test tube holder 200, the sensing spring can be in an upwardly protruding state, and at this time, the sensor 240 can output a signal indicating that there is no test tube based on the protruding state of the sensing spring. When the test tube is inserted into the fixing hole 210 of the test tube holder 200, the bottom of the test tube can squeeze the sensing spring, causing the sensing spring to move downward, and at this time, the sensor 240 can output a signal indicating that there is a test tube based on the downward movement of the sensing spring.

[0074] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An intelligent liquid injection device for a syringe, characterized in that: include: A first base, a test tube fixing base, a second base and a liquid injection mechanism, wherein the test tube fixing base is arranged on the first base, the test tube fixing base is provided with a fixing hole for fixing the test tube, the liquid injection mechanism is arranged on the second base, and the liquid injection mechanism is located above the test tube fixing base, The liquid injection mechanism comprises: A clamping assembly, the clamping assembly is used to fix the syringe above the fixing hole, The pushing assembly comprises a pushing driving member and a pushing head, wherein the pushing driving member is used to drive the pushing head to move toward the clamping assembly so that the pushing head can push the piston push rod of the syringe fixed in the clamping assembly.

2. The intelligent liquid injection device for a syringe according to claim 1, characterized in that: The clamping assembly includes a transverse slide rail, a first clamping seat, a second clamping seat and a clamping drive member. The transverse slide rail is extended in a horizontal direction. The first clamping seat and the second clamping seat are movably arranged on the transverse slide rail. The clamping drive member is used to drive the first clamping seat and the second clamping seat to move closer to or away from each other.

3. The intelligent liquid injection device for a syringe according to claim 2, characterized in that: The side wall of the first clamping seat facing the second clamping seat is provided with a first arc-shaped groove, and the side wall of the second clamping seat facing the first clamping seat is provided with a second arc-shaped groove, and the first arc-shaped groove and the second arc-shaped groove are used to clamp the syringe.

4. The intelligent liquid injection device for a syringe according to claim 1, characterized in that: It also includes a moving mechanism, which is arranged on the second base, and the injection mechanism is connected to the moving mechanism, and the moving mechanism is used to drive the injection mechanism to approach or move away from the test tube fixing seat.

5. The intelligent liquid injection device for a syringe according to claim 4, characterized in that: The moving mechanism includes a horizontal servo slide and a vertical servo slide. Among them, the horizontal servo slide is connected to the second base, the vertical servo slide is connected to the horizontal servo slide, the horizontal servo slide is used to drive the vertical servo slide to move in the horizontal direction toward the test tube fixing seat, and the injection mechanism is connected to the vertical servo slide, and the vertical servo slide is used to drive the injection mechanism to move in the vertical direction toward the test tube fixing seat.

6. The intelligent liquid injection device for a syringe according to claim 1, characterized in that: The test tube fixing seat is also provided with a silicone sheet, and the fixing holes are arranged on the silicone sheet.

7. The intelligent liquid injection device for a syringe according to claim 6, characterized in that: The silicone sheet is provided with a plurality of open grooves connected to the fixing hole, and the plurality of open grooves are arranged at intervals along the circumferential direction of the fixing hole.

8. The intelligent liquid injection device for a syringe according to claim 6, characterized in that: There are multiple silicone sheets, and the multiple silicone sheets are arranged at intervals along the vertical direction, and the fixing holes on each silicone sheet have corresponding positions in the vertical direction.

9. The intelligent liquid injection device for a syringe according to claim 1, characterized in that: A sensor is arranged inside the test tube fixing seat, and the sensor is used to sense whether a test tube is placed in the fixing hole.

10. The intelligent liquid injection device for a syringe according to claim 9, characterized in that: The sensor is arranged at the bottom of the fixing hole, and the sensor has a sensing spring. When the test tube is placed in the fixing hole, the bottom end of the test tube can touch the sensing spring.

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