A micro-syringe needle washer based on a crank-rocker mechanism and a flexible fixture

Abstract

The present invention discloses a micro-syringe needle washer based on a crank-rocker mechanism and a flexible fixture, belonging to the technical field of medical testing equipment. It includes a housing, a driving component is arranged inside the housing, and a cleaning component is connected to the outer wall of the housing. The cleaning component includes a transmission mechanism, an extrusion mechanism, a micro-syringe needle, a syringe needle fixture, a cleaning solvent bottle, and a cleaning solvent bottle fixture. One end of the transmission mechanism is connected to the driving component, and the other end of the transmission mechanism is fixed to the outer wall of the housing. The end of the transmission mechanism fixed to the outer wall of the housing is connected to the extrusion mechanism. The outer wall of the housing is also fixedly connected with a syringe needle fixture and a cleaning solvent bottle fixture. A micro-syringe needle is arranged on the syringe needle fixture, the extrusion mechanism is connected to the top of the micro-syringe needle, and a cleaning solvent bottle is arranged on the cleaning solvent bottle fixture. The present invention is provided with a driving component and a cleaning component, and the cleaning is more convenient and fast under the mutual cooperation of the driving component and the cleaning component, which can reduce the consumption of manpower and material resources.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical testing equipment, and particularly relates to a micro-injection needle washer based on a crank-rocker mechanism and a flexible fixture. Background Art

[0002] The LGR liquid water isotope analyzer can measure the ratios of 18O / 16O and D / H in liquid water samples with extremely high precision; the fully automatic sampler configured with the analyzer can continuously measure liquid water isotopes without manual work; the fully automatic sampler uses a Hamilton 1.2ul high-precision automatic injection needle to accurately extract test samples. Although the test water sample will be filtered through a 0.45um pore size needle filter, the sample still contains impurities such as salts, calcium, and grease. And with the test, the impurities will gradually accumulate in the injection needle, causing the inner core of the injection needle to stick together, resulting in test deviation, and even making it impossible to pull out the injection needle. Therefore, before running the analyzer, the injection needle needs to be manually cleaned with a needle washer (1-methyl-2-pyrrolidone) until it feels smooth, round, without strong friction and without obvious resistance when pulled. When cleaning the injection needle, it is necessary to always pay attention not to pull beyond the maximum range and not to impact the bottom of the injection needle vigorously, otherwise the needle washer will enter the inside of the needle body, affecting the extraction accuracy and reducing the service life of the injection needle. When washing the needle, it is also necessary to observe whether there are microbubbles generated at the needle tip immersed in the needle washer to judge whether there is adhesion in the inner core of the injection needle. Based on the above operation requirements, researchers choose manual cleaning. If the injection needle is rinsed through a large number of tests, it usually takes about 20 minutes to clean. If the injection needle has not been used for a long time, it needs to be manually washed for more than 2 hours. Therefore, how to provide an automatic cleaning micro-injection needle washer based on a crank-rocker mechanism and a flexible fixture is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0003] The main object of the present invention is to provide a micro-injection needle washer based on a crank-rocker mechanism and a flexible fixture to solve the above technical problems. The device is provided with a driving component and a cleaning component, and the cleaning is more convenient and fast under the mutual cooperation of the driving component and the cleaning component, and it can reduce the consumption of manpower and material resources and realize the automation of cleaning the micro-injection needle.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] A micro-injection needle washer based on a crank-rocker mechanism and a flexible fixture, comprising a housing, a driving cavity is arranged inside the housing, a driving component is arranged in the driving cavity, a cleaning component is connected to the outer wall of the housing, and the cleaning component is connected to the driving component;

[0006] The cleaning component includes a transmission mechanism, an extrusion mechanism, a micro-syringe, a syringe clamp, a cleaning solvent bottle, and a cleaning solvent bottle clamp. One end of the transmission mechanism is connected to the driving component, and the other end of the transmission mechanism is fixed to the outer wall of the housing. The end of the transmission mechanism fixed to the outer wall of the housing is connected to the extrusion mechanism. The outer wall of the housing is also fixedly connected with a syringe clamp and a cleaning solvent bottle clamp. A micro-syringe is arranged on the syringe clamp. The extrusion mechanism is connected to the top end of the micro-syringe. A cleaning solvent bottle is arranged on the cleaning solvent bottle clamp.

[0007] Further, the driving component includes a motor, a storage battery, a storage battery fixing block, and a DC motor speed controller. The output end of the motor penetrates the outer wall of the housing and is connected to the transmission mechanism. The storage battery is fixed to the inner wall of the driving cavity through the storage battery fixing block. The DC motor speed controller is fixed in the driving cavity. The DC motor speed controller is electrically connected to the storage battery and the motor respectively.

[0008] Further, the transmission mechanism includes a crank and a rocker. A connection hole is arranged on the crank. The crank is connected to the output end of the motor through the connection hole. A first rocker mounting hole is also arranged on the crank. The crank is rotationally connected to one end of the rocker through the first rocker mounting hole and a screw. A bearing and a washer are also sleeved on the screw at the connection between the rocker and the crank. The end of the rocker away from the crank is rotationally connected to the extrusion mechanism through a screw. A bearing and a washer are also sleeved on the screw at the connection between the rocker and the extrusion mechanism.

[0009] Further, the extrusion mechanism includes a linear guide rail, a guide rail slider, a piston push rod flexible clamp, and a guide rail fixing block. The linear guide rail is fixedly arranged on the outer wall of the housing. A sliding connection groove is arranged on the guide rail slider. The guide rail slider is slidably connected to the linear guide rail through the sliding connection groove. The guide rail fixing block is fixed on the guide rail slider. An installation groove, a second rocker mounting hole, and a limiting groove are arranged on the guide rail fixing block. The guide rail fixing block is connected to the rocker through the second rocker mounting hole. The piston push rod flexible clamp is formed by sequentially connecting a top block structure, a flexible structure, and a bottom block structure. An installation protrusion is arranged on the top block structure at the top end of the piston push rod flexible clamp. The piston push rod flexible clamp is connected to the installation groove on the guide rail fixing block through the installation protrusion. An extrusion groove is arranged at the bottom end of the bottom block structure of the piston push rod flexible clamp. The piston push rod flexible clamp is connected to the top end of the micro-syringe through the extrusion groove at the bottom end of the piston push rod flexible clamp and the limiting groove at the bottom end of the guide rail fixing block. The flexible structure of the piston push rod flexible clamp is a mesh structure.

[0010] Further, the syringe needle clamp includes a syringe needle clamp bottom plate and a syringe needle clamp movable plate. One end of the syringe needle clamp bottom plate is hinged to one end of the syringe needle clamp movable plate. Corresponding first fixing holes are provided at the ends of the syringe needle clamp bottom plate and the syringe needle clamp movable plate away from the hinge, and the first fixing holes can be locked and fixed by screws. First syringe needle clamping grooves and second syringe needle clamping grooves are respectively provided on the sides of the syringe needle clamp bottom plate and the syringe needle clamp movable plate for clamping. The syringe needle clamp bottom plate is fixedly arranged on the outer wall of the housing. Moving grooves are provided on both sides of the first syringe needle clamping groove on the syringe needle clamp bottom plate, and moving grooves are provided on both sides of the second syringe needle clamping groove on the syringe needle clamp movable plate.

[0011] Further, the cleaning solvent bottle clamp includes a cleaning solvent bottle clamp bottom plate and a cleaning solvent bottle clamp movable plate. One end of the cleaning solvent bottle clamp bottom plate is hinged to one end of the cleaning solvent bottle clamp movable plate. Corresponding second fixing holes are provided at the ends of the cleaning solvent bottle clamp bottom plate and the cleaning solvent bottle clamp movable plate away from the hinge, and the second fixing holes can be locked and fixed by screws. First cleaning solvent bottle clamping grooves and second cleaning solvent bottle clamping grooves are respectively provided on the sides of the cleaning solvent bottle clamp bottom plate and the cleaning solvent bottle clamp movable plate for clamping. The cleaning solvent bottle clamp bottom plate is fixedly arranged on the outer wall of the housing. Moving grooves are provided on both sides of the first cleaning solvent bottle clamping groove on the cleaning solvent bottle clamp bottom plate, and moving grooves are provided on both sides of the second cleaning solvent bottle clamping groove on the cleaning solvent bottle clamp movable plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The present invention is provided with a driving component and a cleaning component. With the mutual cooperation of the driving component and the cleaning component, the cleaning is more convenient and fast, and the consumption of manpower and material resources can be reduced, realizing the automation of the cleaning of the micro syringe needle;

[0014] The extrusion mechanism and the transmission mechanism are used to push the piston of the micro syringe needle up and down in cooperation with the driving component to realize the cleaning of the micro syringe needle;

[0015] The syringe needle clamp and the cleaning solvent bottle clamp can clamp the micro syringe needle and the cleaning solvent bottle to ensure the normal progress of the syringe needle cleaning;

[0016] With the mutual cooperation of the motor and the DC motor speed controller, the moving distance of the piston of the micro syringe needle in the present invention is more accurate;

[0017] The piston push rod flexible clamp adopts a flexible structure, which can protect the micro syringe needle and prevent the micro syringe needle from breaking when cleaning the micro syringe needle. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0019] Figure 1 It is a schematic structural diagram of the present invention.

[0020] Figure 2 It is a schematic structural diagram of the back of the present invention.

[0021] Figure 3 It is an exploded structural diagram of a crank-rocker mechanism.

[0022] Figure 4 It is a schematic structural diagram of a crank-rocker mechanism.

[0023] Figure 5 It is an exploded structural diagram of a sliding extrusion mechanism.

[0024] Figure 6 It is a schematic structural diagram of a sampling needle fixture.

[0025] Figure 7 It is a schematic structural diagram of a cleaning solvent bottle fixture.

[0026] Wherein, 1 - housing, 2 - crank, 2.1 - connecting hole, 3 - linear guide rail, 4 - rocker, 4.1 - bearing, 4.2 - washer, 5 - guide rail slider, 5.1 - sliding connection groove, 6 - piston push rod flexible fixture, 6.1 - extrusion groove, 6.2 - mounting protrusion, 7 - guide rail fixing block, 7.1 - limiting groove, 7.2 - mounting groove, 8 - micro-sampling needle, 9 - sampling needle fixture, 9.1 - sampling needle fixture bottom plate, 9.11 - first sampling needle clamping groove, 9.2 - sampling needle fixture movable plate, 9.21 - second sampling needle clamping groove, 10 - cleaning solvent bottle, 11 - cleaning solvent bottle fixture, 11.1 - cleaning solvent bottle fixture bottom plate, 11.11 - first cleaning solvent bottle clamping groove, 11.2 - cleaning solvent bottle fixture movable plate, 11.21 - second cleaning solvent bottle clamping groove, 12 - motor, 13 - driving cavity, 14 - storage battery, 15 - storage battery fixing block, 16 - DC motor speed regulator. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1

[0029] As Figures 1 to 7 shown, the present invention provides a micro-syringe needle washer based on a crank-rocker mechanism and a flexible fixture, including a housing 1. A driving cavity 13 is arranged inside the housing 1, and a driving component is arranged in the driving cavity 13. A cleaning component is connected to the outer wall of the housing 1, and the cleaning component is connected to the driving component.

[0030] The cleaning component includes a transmission mechanism, an extrusion mechanism, a micro-syringe needle 8, a syringe needle fixture 9, a cleaning solvent bottle 10, and a cleaning solvent bottle fixture 11. One end of the transmission mechanism is connected to the driving component, and the other end of the transmission mechanism is fixed to the outer wall of the housing 1. The end of the transmission mechanism fixed to the outer wall of the housing 1 is connected to the extrusion mechanism. The outer wall of the housing 1 is also fixedly connected with a syringe needle fixture 9 and a cleaning solvent bottle fixture 11. A micro-syringe needle 8 is arranged on the syringe needle fixture 9. The extrusion mechanism is connected to the top of the micro-syringe needle 8. A cleaning solvent bottle 10 is arranged on the cleaning solvent bottle fixture 11. Both the syringe needle fixture 9 and the cleaning solvent bottle fixture 11 are self-centering fixtures. After clamping the micro-syringe needle 8, it will ensure that the micro-syringe needle 8 is in the same movement direction as the washer. The cleaning solvent bottle 10 is used to hold the cleaning solvent. Specifically, alcohol is used in this embodiment.

[0031] In this embodiment, the driving component includes a motor 12, a storage battery 14, a storage battery fixing block 15, and a DC motor speed regulator 16. The output end of the motor 12 penetrates the outer wall of the housing 1 and is connected to the transmission mechanism. The storage battery 14 is fixed to the inner wall of the driving cavity 13 through the storage battery fixing block 15. The DC motor speed regulator 16 is fixed in the driving cavity 13. The DC motor speed regulator 16 is electrically connected to the storage battery 14 and the motor 12 respectively. The DC motor speed regulator 16 can adjust the rotation speed of the motor 12. The motor 12 is driven by a 545 reduction motor with a maximum rotation speed of 200 revolutions per minute.

[0032] In this embodiment, the transmission mechanism includes a crank 2 and a rocker 4. The crank 2 is provided with a connecting hole 2.1, and the crank 2 is connected to the output end of the motor 12 through the connecting hole 2.1. The crank 2 is also provided with a first rocker mounting hole. The crank 2 is rotatably connected to one end of the rocker 4 through the first rocker mounting hole and a screw. A bearing 4.1 and a washer 4.2 are also sleeved on the screw at the connection between the rocker 4 and the crank 2. The end of the rocker 4 away from the crank 2 is rotatably connected to the extrusion mechanism through a screw. A bearing 4.1 and a washer 4.2 are also sleeved on the screw at the connection between the rocker 4 and the extrusion mechanism. The bearing 4.1 and the washer 4.2 are used for the mutual cooperation of the crank 2, the rocker 4 and the guide rail fixing block 7 to ensure the normal operation of the rocker 4 and the guide rail fixing block 7 when the crank 2 rotates.

[0033] In this embodiment, the extrusion mechanism includes a linear guide 3, a guide slider 5, a piston push rod flexible clamp 6 and a guide fixing block 7. The linear guide 3 is fixedly arranged on the outer wall of the shell 1. The guide slider 5 is provided with a sliding connection groove 5.1. The guide slider 5 is slidably connected to the linear guide 3 through the sliding connection groove 5.1. The guide fixing block 7 is fixed on the guide slider 5. The guide fixing block 7 is provided with a mounting groove 7.2, a second rocker mounting hole and a limit groove 7.1. The guide fixing block 7 is connected to the rocker 4 through the second rocker mounting hole. The piston push rod flexible clamp 6 is formed by connecting a top block structure, a flexible structure and a bottom block structure in sequence. The top block structure at the top of the piston push rod flexible clamp 6 is provided with a mounting protrusion 6.2. The piston push rod flexible clamp 6 is connected to the mounting groove 7.2 on the guide rail fixing block 7 through the mounting protrusion 6.2. The bottom end of the bottom block structure of the piston push rod flexible clamp 6 is provided with an extrusion groove 6.1, which is connected to the top of the micro-injection needle 8 through the extrusion groove 6.1 at the bottom end of the piston push rod flexible clamp 6 and the limiting groove 7.1 at the bottom end of the guide rail fixing block 7. The flexible structure of the piston push rod flexible clamp 6 is a mesh structure; the flexible structure is made of ABS material, and a mesh structure with multiple trapezoidal holes is provided, which can have a certain bending deformation when subjected to force; when the resistance of the micro-injection needle 8 is large, there will be a flexible and recoverable deformation of 3mm to protect the micro-injection needle 8 from being damaged; when the resistance of the micro-injection needle 8 is too large or stuck, the piston top block of the micro-injection needle 8 will be broken from the root.

[0034] In this embodiment, the sampling needle clamp 9 includes a sampling needle clamp bottom plate 9.1 and a sampling needle clamp movable plate 9.2. One end of the sampling needle clamp bottom plate 9.1 is hinged to one end of the sampling needle clamp movable plate 9.2. First fixing holes are correspondingly provided at the ends of the sampling needle clamp bottom plate 9.1 and the sampling needle clamp movable plate 9.2 away from the hinge, and the first fixing holes can be locked and fixed by screws. First sampling needle clamping grooves 9.11 and second sampling needle clamping grooves 9.21 are respectively correspondingly provided on the sides of the sampling needle clamp bottom plate 9.1 and the sampling needle clamp movable plate 9.2 for clamping. The sampling needle clamp bottom plate 9.1 is fixedly arranged on the outer wall of the housing 1. Moving grooves are provided on both sides of the first sampling needle clamping groove 9.11 on the sampling needle clamp bottom plate 9.1, and moving grooves are provided on both sides of the second sampling needle clamping groove 9.21 on the sampling needle clamp movable plate 9.2. The sampling needle clamp 9 is made of 3D printing PLA material consumables. The moving grooves provided on the sampling needle clamp 9 can cooperate with the adjacent first sampling needle clamping groove 9.11 or second sampling needle clamping groove 9.21, so that the first sampling needle clamping groove 9.11 and the second sampling needle clamping groove 9.21 are softer when clamping, and when clamping a glass sampling needle, the sampling needle can be prevented from being broken due to excessive clamping force, and continuous clamping force is provided.

[0035] In this embodiment, the cleaning solvent bottle clamp 11 includes a cleaning solvent bottle clamp bottom plate 11.1 and a cleaning solvent bottle clamp movable plate 11.2. One end of the cleaning solvent bottle clamp bottom plate 11.1 is hinged to one end of the cleaning solvent bottle clamp movable plate 11.2. Second fixing holes are correspondingly provided at the ends of the cleaning solvent bottle clamp bottom plate 11.1 and the cleaning solvent bottle clamp movable plate 11.2 away from the hinge, and the second fixing holes can be locked and fixed by screws. First cleaning solvent bottle clamping grooves 11.11 and second cleaning solvent bottle clamping grooves 11.21 are respectively correspondingly provided on the sides of the cleaning solvent bottle clamp bottom plate 11.1 and the cleaning solvent bottle clamp movable plate 11.2 for clamping. The cleaning solvent bottle clamp bottom plate 11.1 is fixedly arranged on the outer wall of the housing 1. Moving grooves are provided on both sides of the first cleaning solvent bottle clamping groove 11.11 on the cleaning solvent bottle clamp bottom plate 11.1, and moving grooves are provided on both sides of the second cleaning solvent bottle clamping groove 11.21 on the cleaning solvent bottle clamp movable plate 11.2. The cleaning solvent bottle clamp 11 is made of 3D printing PLA material consumables. The moving grooves provided on the cleaning solvent bottle clamp 11 can cooperate with the adjacent first cleaning solvent bottle clamping groove 11.11 and second cleaning solvent bottle clamping groove 11.21, so that the first cleaning solvent bottle clamping groove 11.11 and the second cleaning solvent bottle clamping groove 11.21 are softer when clamping, and the cleaning solvent bottle can be prevented from being broken due to excessive clamping force, and continuous clamping force is provided.

[0036] Usage method of a micro-syringe needle washer based on a crank-rocker mechanism and a flexible fixture:

[0037] Step 1, start needle washing. Place the machine flat on the table, open the piston push rod flexible fixture 6, and clamp the piston rod at the top of the micro-syringe needle 8 in the piston push rod flexible fixture 6; clamp the micro-syringe needle 8 in the syringe needle fixture 9, and slightly tighten the nut on the screw in the syringe needle fixture 9 so that the micro-syringe needle 8 can slide slightly in the syringe needle fixture 9;

[0038] Step 2, turn on the switch of the storage battery 14, and adjust the speed of the motor 12 to 10% of the motor 12 itself through the DC motor speed regulator 16, so that the rocker 4 rotates one circle. After pushing the micro-syringe needle 8 to the lowest point of the stroke, turn off the machine;

[0039] Step 3, tighten the nut on the syringe needle clamp 9 to fix the micro-syringe needle 8;

[0040] Step 4, insert the needle tip of the micro-syringe needle 8 into the cleaning solvent bottle 10, and at the same time clamp the cleaning solvent bottle 10 on the cleaning solvent bottle fixture 11;

[0041] Step 5, turn on the machine and adjust the speed to start needle washing.

[0042] Step 6, remove the needle after cleaning. Turn off the machine and place it flat, remove the cleaning solvent bottle 10, open the syringe needle fixture 9 and the piston push rod flexible fixture 6, and remove the piston rod at the top of the micro-syringe needle 8 from the piston push rod flexible fixture 6.

[0043] Working principle: The piston connecting rod part at the top of the micro-syringe needle 8 is fixed through the extrusion groove 6.1 and the limit groove 7.1, the main body part of the micro-syringe needle 8 is clamped and fixed through the syringe needle fixture 9, the cleaning solvent bottle 10 is clamped and fixed through the cleaning solvent bottle fixture 11. Activity grooves are provided beside the first syringe needle clamping groove 9.11, the second syringe needle clamping groove 9.21, the first cleaning solvent bottle clamping groove 11.11 and the second cleaning solvent bottle clamping groove 11.21, which can prevent damage to the micro-syringe needle 8 and the cleaning solvent bottle 10 caused by excessive clamping pressure. The needle tip part at the bottom of the micro-syringe needle 8 is located directly above the opening of the cleaning solvent bottle 10. When in use, start the storage battery 14 and the motor 12, the DC motor speed regulator 16 can adjust the speed of the motor. The rotation of the motor 12 drives the crank 2 to rotate, the rotation of the crank 2 drives the rocker 4 to swing, and at the same time the rocker 4 drives the guide rail slider 5, the guide rail fixed block 7 and the piston push rod flexible fixture 6 to move up and down. The guide rail fixed block 7 and the piston push rod flexible fixture 6 will drive the piston connecting rod part at the top of the micro-syringe needle 8 to move up and down to achieve needle washing.

[0044] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts among the embodiments can be referred to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0045] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A micro-injection needle washer based on a crank rocker mechanism and a flexible clamp, characterized in that: It comprises a shell (1), a driving chamber (13) is arranged inside the shell (1), a driving assembly is arranged inside the driving chamber (13), a cleaning assembly is connected to the outer wall of the shell (1), and the cleaning assembly is connected to the driving assembly; The cleaning component comprises a transmission mechanism, an extrusion mechanism, a micro-injection needle (8), an injection needle fixture (9), a cleaning solvent bottle (10) and a cleaning solvent bottle fixture (11); one end of the transmission mechanism is connected to the driving component, and the other end of the transmission mechanism is fixed to the outer wall of the shell (1); one end of the transmission mechanism fixed to the outer wall of the shell (1) is connected to the extrusion mechanism; the outer wall of the shell (1) is also fixedly connected to the injection needle fixture (9) and the cleaning solvent bottle fixture (11); the micro-injection needle (8) is arranged on the injection needle fixture (9); the extrusion mechanism is connected to the top end of the micro-injection needle (8); and the cleaning solvent bottle fixture (11) is arranged on the cleaning solvent bottle (10); The drive assembly comprises a motor (12), a battery (14), a battery fixing block (15), and a DC motor speed regulator (16); the output end of the motor (12) passes through the outer wall of the housing (1) and is connected to the transmission mechanism; the battery (14) is fixed to the inner wall of the drive cavity (13) via the battery fixing block (15); the DC motor speed regulator (16) is fixed in the drive cavity (13); and the DC motor speed regulator (16) is electrically connected to the battery (14) and the motor (12) respectively; The transmission mechanism comprises a crank (2) and a rocker (4); a connecting hole (2.1) is provided on the crank (2); the crank (2) is connected to the output end of the motor (12) via the connecting hole (2.1); a first rocker mounting hole is also provided on the crank (2); the crank (2) is rotatably connected to one end of the rocker (4) via the first rocker mounting hole and a screw; a bearing (4.1) and a washer (4.2) are sleeved on the screw at the connection between the rocker (4) and the crank (2); an end of the rocker (4) away from the crank (2) is rotatably connected to the extrusion mechanism via the screw; a bearing (4.1) and a washer (4.2) are sleeved on the screw at the connection between the rocker (4) and the extrusion mechanism; The injection needle fixture (9) comprises an injection needle fixture base plate (9.1) and an injection needle fixture movable plate (9.2), one end of the injection needle fixture base plate (9.1) is hinged to one end of the injection needle fixture movable plate (9.2), and the injection needle fixture base plate (9.1) and the injection needle fixture movable plate (9.2) are both provided with a first fixing hole at the ends away from the hinge, and the first fixing hole can be fixed by screw locking, and the injection needle fixture base plate (9.1) and the injection needle fixture movable plate (9.2) are respectively provided with a first fixing hole. The clamp movable plate (9.2) is provided with a first injection needle clamp groove (9.11) and a second injection needle clamp groove (9.21) on one side thereof for clamping. The injection needle clamp base plate (9.1) is fixedly arranged on the outer wall of the housing (1). The injection needle clamp base plate (9.1) is provided with movable grooves on both sides of the first injection needle clamp groove (9.11). The injection needle clamp movable plate (9.2) is provided with movable grooves on both sides of the second injection needle clamp groove (9.21).

2. According to claim 1, a micro-injection needle washer based on a crank rocker mechanism and a flexible clamp is characterized in that: The extrusion mechanism comprises a linear guide rail (3), a guide rail slider (5), a piston push rod flexible clamp (6) and a guide rail fixing block (7); the linear guide rail (3) is fixedly arranged on the outer wall of the housing (1); the guide rail slider (5) is provided with a sliding connection groove (5.1); the guide rail slider (5) is slidably connected to the linear guide rail (3) via the sliding connection groove (5.1); the guide rail fixing block (7) is fixed to the guide rail slider (5); the guide rail fixing block (7) is provided with a mounting groove (7.2), a second rocker mounting hole and a limit groove (7.1); the guide rail fixing block (7) is connected to the rocker (4) via the second rocker mounting hole; the piston push rod flexible clamp (6) is fixedly arranged on the outer wall of the housing (1); the guide rail slider (5) is provided with a sliding connection groove (5.1); the guide rail slider (5) is slidably connected to the linear guide rail (3) via the sliding connection groove (5.1); the guide rail fixing block (7) is fixed to the guide rail slider (5); the guide rail fixing block (7) is provided with a mounting groove (7.2), a second rocker mounting hole and a limit groove (7.1); the guide rail fixing block (7) is connected to the rocker (4) via the second rocker mounting hole; The flexible clamp (6) is formed by connecting a top block structure, a flexible structure and a bottom block structure in sequence. The top block structure at the top of the piston push rod flexible clamp (6) is provided with a mounting protrusion (6.2). The piston push rod flexible clamp (6) is connected to a mounting groove (7.2) on a guide rail fixing block (7) via the mounting protrusion (6.2). The bottom end of the bottom block structure of the piston push rod flexible clamp (6) is provided with an extrusion groove (6.1). The piston push rod flexible clamp (6) is connected to the top of a microinjection needle (8) via the extrusion groove (6.1) at the bottom end of the piston push rod flexible clamp (6) and the limit groove (7.1) at the bottom end of the guide rail fixing block (7). The flexible structure of the piston push rod flexible clamp (6) is a mesh structure.

3. According to claim 1, a micro-injection needle washer based on a crank rocker mechanism and a flexible clamp is characterized in that: The cleaning solvent bottle clamp (11) comprises a cleaning solvent bottle clamp base plate (11.1) and a cleaning solvent bottle clamp movable plate (11.2), one end of the cleaning solvent bottle clamp base plate (11.1) is hinged to one end of the cleaning solvent bottle clamp movable plate (11.2), and the cleaning solvent bottle clamp base plate (11.1) and the cleaning solvent bottle clamp movable plate (11.2) are both provided with a second fixing hole at the end away from the hinge, and the second fixing hole can be fixed by screw locking, and the cleaning solvent bottle clamp base plate (11.1) and the cleaning solvent bottle clamp movable plate (11.2) are respectively provided with a second fixing hole. The first cleaning solvent bottle clamp groove (11.11) and the second cleaning solvent bottle clamp groove (11.21) are respectively provided on one side of the clamping of the cleaning solvent bottle clamp movable plate (11.2); the cleaning solvent bottle clamp bottom plate (11.1) is fixedly arranged on the outer wall of the shell (1); movable grooves are provided on both sides of the first cleaning solvent bottle clamp groove (11.11) on the cleaning solvent bottle clamp bottom plate (11.1); movable grooves are provided on both sides of the second cleaning solvent bottle clamp groove (11.21) on the cleaning solvent bottle clamp movable plate (11.2).

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