Clamping assembly and lifting device of infusion puncture head

Abstract

The application discloses a kind of infusion puncture head clamping assembly and lifting device, belong to medical infusion related technical field, including mounting seat, the base of assembly on mounting seat, the adapter block of being equipped on base, adapter block is equipped with the clamping mechanism for clamping infusion puncture needle, clamping mechanism includes fixed jaw, rotatably connected on the dynamic jaw of adapter block, fixed jaw and dynamic jaw are oppositely arranged, and the clamping cavity for clamping puncture needle is formed by the two surrounding;Adapter block and base are equipped with the locking and unlocking assembly for controlling the opening and closing of dynamic jaw;It also includes the lifting drive assembly for driving mounting seat to move linearly along vertical direction.This application forms clamping cavity by fixed jaw and dynamic jaw cooperation, and it is accurate to be positioned that puncture needle is clamped firmly, locking and unlocking assembly action is reliable, and it is convenient to disassemble and assemble;While integrated lifting drive assembly, can drive mounting seat and clamping mechanism to move linearly smoothly, realize clamping and lifting integration.

Description

Technical Field

[0001] This invention belongs to the field of medical infusion related technology, specifically a clamping assembly and lifting device for an infusion puncture head. Background Technology

[0002] In automated infusion and intravenous puncture equipment, the puncture needle clamping assembly is a core component for ensuring stable fixation of the puncture needle and accurate execution of the puncture procedure. Its clamping reliability and ease of operation directly affect the puncture success rate and medical safety. Currently, most puncture needle clamping structures used in clinical practice and equipment only have a single clamping function and are relatively simple in design, which is no longer sufficient to meet the requirements of modern medical equipment.

[0003] Existing puncture needle clamping mechanisms generally have significant shortcomings: they mostly use clamps, bolts, or simple elastic buckles, which result in point or line contact during clamping, leading to uneven force distribution and easy radial and axial displacement of the puncture needle; changing the puncture needle is cumbersome, requiring tools for disassembly and assembly, resulting in low efficiency; some locking structures lack stable limits, making them prone to loosening during use and posing safety hazards.

[0004] Meanwhile, traditional clamping devices do not integrate lifting and adjustment functions. The puncture height and feed position need to be achieved by an external independent drive mechanism, resulting in a dispersed overall structure, large space occupation, poor motion synchronization, and insufficient stability and positioning accuracy during the lifting process. Therefore, it is necessary to develop a clamping component and lifting device for infusion puncture heads to solve the above technical problems. Summary of the Invention

[0005] To address the above problems, the present invention provides a clamping assembly and lifting device for an infusion puncture head, which solves the technical problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A clamping assembly and lifting device for an infusion puncture needle includes a mounting base, a base mounted on the mounting base, and a mating block disposed on the base. The mating block is provided with a clamping mechanism for clamping the infusion puncture needle.

[0008] The clamping mechanism includes a fixed clamping jaw fixedly mounted on the mating block and a movable clamping jaw rotatably connected to the mating block. The fixed clamping jaw and the movable clamping jaw are arranged opposite to each other, and the two together form a clamping cavity for clamping the puncture needle.

[0009] A locking and unlocking assembly for controlling the opening and closing of the movable gripper is provided between the mating block and the base. The locking and unlocking assembly includes a toggle block and an elastic element that provides a reset preload force to the toggle block.

[0010] It also includes a lifting drive assembly for driving the mounting base to move vertically in a linear motion. The lifting drive assembly includes a vertical guide structure and a drive structure connected to the mounting base and driving the mounting base to move vertically along the vertical guide structure.

[0011] As a further improvement to the above solution, the mounting base includes a connecting block, a base body is provided on one side of the connecting block, a stepped groove is provided in the base body, a pin for positioning the base is provided in the stepped groove, a first through hole is provided on one side of the base body, and a fastener for locking the mounting base and the base is provided in the first through hole.

[0012] As a further improvement to the above solution, an auxiliary block is provided at the lower end of the base, and a locking groove is provided in the middle of the auxiliary block.

[0013] As a further improvement to the above solution, the base includes a base body, on which a connecting post is provided for connecting to the mating block, and a plug is provided at the lower end of the base body. A plug hole for inserting a pin is provided at the bottom center of the plug, and a locking hole suitable for fasteners is provided at the side end of the base body.

[0014] As a further improvement to the above solution, the actuating block is provided with a plug pin, the middle of which is connected to the arc block via a support block, and the outer wall of the arc block is a smoothly transitioned arc surface; the side wall of the actuating block is provided with a protrusion for docking with an external drive.

[0015] As a further improvement to the above solution, the elastic element includes a first spring, which is a compression spring. The bottom end of the first spring abuts against the base, and the top end abuts against the actuating block, providing the actuating block with an axially upward reset preload force.

[0016] As a further improvement to the above solution, the mating block includes a mating block body, on which a step for placing a limiting piece is provided. The lower middle part of the step is provided with a straight section groove and an arc section groove for inserting a conduit. A column is provided at the side end of the mating block body. A second through hole is provided in the column, and a shaped groove communicating with the second through hole is provided at the bottom. The upper end of the insertion pin of the actuating block is inserted into the second through hole and slides in the shaped groove.

[0017] As a further improvement to the above solution, the fixed clamping jaw includes a fixed clamping jaw body, on which a first arc segment is formed facing the movable clamping jaw. The movable clamping jaw is provided with a movable clamping jaw body, on which a second arc segment is formed facing the fixed clamping jaw. The first arc segment and the second arc segment together form the clamping cavity. The radii of curvature of the first arc segment and the second arc segment are both matched with the outer diameter of the puncture needle to be clamped.

[0018] As a further improvement to the above solution, the movable gripper is provided with a locking hole that matches the upper end of the insertion pin. Under normal conditions, the insertion pin is inserted into the locking hole to limit the rotation of the movable gripper.

[0019] As a further improvement to the above solution, the lifting drive assembly includes a drive motor, a vertically arranged lead screw, and a guide rod parallel to the lead screw; the lead screw is driven by the mounting base, the guide rod is slidably engaged with the mounting base, and the output end of the drive motor is connected to the lead screw to drive the mounting base to move up and down along the guide rod.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. This invention forms a clamping cavity by cooperating with a fixed gripper and a moving gripper, which can firmly clamp the puncture needle and accurately position it. The locking and unlocking components are reliable and easy to install and disassemble. At the same time, it integrates a lifting drive component, which can drive the mounting base and clamping mechanism to lift smoothly in a straight line, realizing the integration of clamping and lifting. The structure is compact and the movement is precise, which significantly improves the stability and automation of puncture operation.

[0022] 2. The fixed and movable grippers of the present invention each have an arc segment, which together can just hold the puncture needle, firmly clamp the needle body, and lay the foundation for subsequent locking and guiding actions.

[0023] The through holes and irregular grooves on the mating block allow the pins on the actuating block to slide smoothly without jamming; the steps on the mating block can also be fitted with limiting plates to further fix the puncture needle and make the clamping more stable.

[0024] The pin of the actuating block can slide up and down and left and right along the through hole and irregular groove of the mating block. Normally, it is inserted into the locking hole of the moving jaw to lock it. When unlocking, it is pulled out to allow the moving jaw to open. The arc block can smoothly push the moving jaw without jamming or damaging the parts. The protrusion can also connect to the external drive to realize automatic operation.

[0025] The locking hole on the movable gripper is just big enough to insert the connector pin. Normally, it locks the movable gripper to prevent the puncture needle from coming loose. When unlocking, the connector pin comes out and the movable gripper can be opened, making it easy to load and unload the puncture needle and ensuring safe clamping.

[0026] The coordinated function of the fixed gripper, moving gripper, actuating block, and mating block ensures stable clamping, precise guidance, unlocking operation, and locking protection, forming a complete workflow that makes the entire clamping assembly more precise, convenient, and safe to use. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the present invention.

[0028] Figure 2 This is a schematic diagram of the clamping component in this invention.

[0029] Figure 3 This is a first exploded view of the clamping component in this invention.

[0030] Figure 4 This is a second exploded view of the clamping component in this invention.

[0031] Figure 5 This is the third exploded view of the clamping component in this invention.

[0032] Figure 6 This is the fourth exploded view of the clamping component in this invention.

[0033] Figure 7 This is a schematic diagram of the actuating block of the clamping component in this invention.

[0034] Figure 8 This is a three-dimensional schematic diagram of another embodiment of the clamping component in this invention.

[0035] Figure 9 This is an exploded view of another embodiment of the clamping component in this invention.

[0036] Figure 10 This is a schematic diagram of the present invention (lifting device plus mounting housing).

[0037] In the diagram: 1. Mounting base; 101. Connecting block; 102. Base body; 103. Step groove; 104. Pin; 105. First through hole; 2. Base; 201. Connecting column; 202. Base body; 203. Insertion block; 204. Insertion hole; 205. Locking hole; 3. Auxiliary block; 301. Locking groove; 4. Bolt; 5. Matching block; 501. Matching block body; 502. Step; 503. Second through hole; 504. Column; 505. Irregular groove; 506. Straight section groove; 507. Arc section groove; 6. 601. Fixed gripper; 602. First arc segment; 7. Moving gripper; 701. Moving gripper body; 702. Second arc segment; 703. Locking hole; 8. Actuating block; 801. Insertion pin; 802. Arc block; 803. Protrusion; 804. Support block; 9. First spring; 10. Puncture needle; 11. Fixing pin; 12. Screw; 13. Pad; 14. Limiting piece; 15. Second spring; 16. Guide tube; 17. Lead screw; 18. Guide rod; 19. Drive motor; 20. Mounting housing. Detailed Implementation

[0038] To enable those skilled in the art to better understand the technical solution, the present invention will be described in detail below with reference to embodiments. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0039] like Figure 1-7As shown, the specific solution of this embodiment is as follows: a clamping assembly and lifting device for an infusion puncture head, including a mounting base 1 for docking with an external execution device, a base 2 mounted on the mounting base 1, and a mating block 5 provided on the base 2. The mating block 5 is provided with a clamping mechanism for clamping an infusion puncture needle 10. The clamping mechanism includes a fixed clamping claw 6 fixedly disposed on the mating block 5 and a movable clamping claw 7 rotatably connected to the mating block 5. The fixed clamping claw 6 and the movable clamping claw 7 are arranged opposite to each other, and the two together form a clamping cavity for clamping the puncture needle 10. A locking and unlocking assembly for controlling the opening and closing of the movable clamping claw 7 is provided between the mating block 5 and the base 2. The locking and unlocking assembly includes a toggle block 8 and an elastic member that provides a reset preload force for the toggle block 8.

[0040] like Figure 3 As shown, in a preferred embodiment of the above, the mounting base 1 includes a connecting block 101, a seat body 102 is provided on one side of the connecting block 101, a stepped groove 103 is provided in the seat body 102, a pin 104 for positioning the base 2 is provided in the stepped groove 103, a first through hole 105 is provided on one side of the seat body 102, and a fastener for locking the mounting base 1 and the base 2 is provided in the first through hole 105.

[0041] like Figure 5 As shown, in a preferred embodiment, the lower end of the base 102 is provided with an auxiliary block 3, and the middle part of the auxiliary block 3 is provided with a locking groove 301. The locking groove 301 is used to assist in limiting the catheter part of the infusion puncture needle 10, so as to avoid the catheter shaking and affect the puncture accuracy.

[0042] like Figure 6 As shown, in a preferred embodiment of the above, the base 2 includes a base body 202, on which a connecting post 201 is provided for connection with the mating block 5. The connecting post 201 and the mating block 5 are connected by interference fit or threaded connection to ensure that the mating block 5 and the base 2 are firmly connected and to prevent relative shaking when clamping the puncture needle 10. The lower end of the base body 202 is provided with an insertion block 203, which is adapted to the stepped groove 103 of the base body 102 for insertion. The bottom center of block 203 is provided with a insertion hole 204 for inserting a pin 104. The pin 104 is inserted between the insertion hole 204 and the stepped groove 103 to achieve quick positioning of the base 2 and the mounting base 1 and prevent misalignment during assembly. The side end of the base body 202 is provided with a locking hole 205 suitable for fasteners. After the fastener passes through the first through hole 105, it cooperates with the locking hole 205 to achieve detachable locking and fixing of the mounting base 1 and the base 2.

[0043] like Figure 7As shown, in a preferred embodiment, the actuating block 8 is provided with a pin 801. The middle part of the pin 801 is connected to the arc block 802 through the support block 804. The outer wall of the arc block 802 is a smoothly transitioned arc surface, which reduces the frictional resistance between the actuating block 8 and the mating block 5 when the actuating block 8 moves, and ensures smooth actuation. The side wall of the actuating block 8 is provided with a protrusion 803 for docking with an external drive. The external drive mechanism drives the actuating block 8 to move up and down along the axial direction by driving the protrusion 803, thereby realizing the locking and unlocking of the moving gripper 7.

[0044] like Figure 6 As shown, in a preferred embodiment of the above, the elastic element includes a first spring 9, which is a compression spring. The bottom end of the first spring 9 abuts against the base 2, and the top end abuts against the actuating block 8, providing an axially upward reset preload force to the actuating block 8, ensuring that the actuating block 8 can remain locked under normal conditions, and preventing the moving gripper 7 from accidentally loosening.

[0045] like Figure 6 As shown, in a preferred embodiment, the mating block 5 includes a mating block body 501. The mating block body 501 has a step 502 for placing the limiting piece 14. The lower center of the step 502 has a straight section groove 506 and an arc section groove 507 for inserting the conduit 16. The straight section groove 506 and the arc section groove 507 are connected to achieve an orderly arrangement of the conduit 16. A column 504 is provided on the side end of the mating block body 501. A second through hole 503 is provided inside the column 504, and a shaped groove 505 communicating with the second through hole 503 is provided at the bottom. The upper end of the insertion pin 801 of the actuating block 8 is inserted into the second through hole 503 and slides within the shaped groove 505. The shaped groove 505 is L-shaped to guide the movement of the insertion pin 801, thereby controlling the opening and closing of the moving gripper 7. The base body 202 is fixedly connected to the mating block body 501 by screws.

[0046] like Figure 6 As shown, in a preferred embodiment of the above, the fixed gripper 6 includes a fixed gripper body 601, which is fixedly connected to the mating block 501 by screws. A first arc segment 602 is provided on the side of the fixed gripper body 601 facing the movable gripper 7. A movable gripper body 701 is provided on the movable gripper 7, which is rotatably connected to the mating block 5 by screws. A second arc segment 702 is provided on the side of the movable gripper body 701 facing the fixed gripper 6. The first arc segment 602 and the second arc segment 702 together form a clamping cavity. The radii of curvature of the first arc segment 602 and the second arc segment 702 are both matched with the outer diameter of the puncture needle 10 to be clamped, so that the clamping cavity fits tightly with the puncture needle 10, which can ensure firm clamping and avoid damage to the puncture needle 10 due to excessive clamping force.

[0047] like Figure 1 and Figure 10As shown, the lifting drive assembly includes a drive motor 19, a vertically arranged lead screw 17, and a guide rod 18 parallel to the lead screw 17; the lead screw 17 is in transmission engagement with the mounting base 1, the guide rod 18 is in sliding engagement with the mounting base 1, and the output end of the drive motor 19 is connected to the lead screw 17 to drive the mounting base 1 to move up and down along the guide rod 18.

[0048] The lead screw 17 and the guide rod 18 are located inside the mounting housing 20, with the guide rod 18 parallel to the lead screw 17.

[0049] like Figure 9 As shown, the movable gripper 7 has a locking hole 703 that matches the upper end of the insertion pin 801. Normally, the insertion pin 801 is inserted into the locking hole 703, limiting the rotation of the movable gripper 7. At this time, the movable gripper 7 and the fixed gripper 6 are closed, and the clamping cavity is locked to securely hold the puncture needle 10. When it is necessary to unlock and remove the puncture needle 10, the external drive mechanism drives the actuating block 8 to move axially downwards via the protrusion 803, thereby causing the insertion pin 801 to move axially downwards synchronously. The first spring 9 is compressed, and the insertion pin 801... 1. The needle 10 is disengaged from the locking hole 703 and moves to the side of the groove 505 (adapting to the trajectory design of the groove 505 to achieve smooth displacement of the insertion pin 801), completely releasing the rotation limit on the moving jaw 7. The moving jaw 7 can rotate around the mating block 5 to open the clamping cavity. After the puncture needle 10 is removed, the external driving force is released, the first spring 9 resets and pushes the actuating block 8 to move axially upward, driving the insertion pin 801 to reset along the groove 505 and re-insert into the locking hole 703, thus locking the moving jaw 7 again. In summary, the general working principle of this clamping assembly is: the opening and closing of the clamping mechanism is controlled by the locking and unlocking assembly to achieve stable clamping and convenient removal and placement of the puncture needle 10. The mounting base 1 and the base 2 are reliably assembled by different fasteners, adapting to external execution equipment to complete the infusion puncture operation. The following examples illustrate the specific implementation of different fasteners.

[0050] Example 1

[0051] like Figure 3 As shown, the difference between this embodiment and the subsequent embodiment 2 is that the locking method of the mounting base 1 and the base 2 is different. The structure, connection relationship and working principle of the other components are the same as those of the basic embodiment above. The specific locking structure is as follows: the bolt 4 is a fastener that passes through the first through hole 105 on the mounting base 1 body 102. The first through hole 105 is a smooth hole. The screw part of the bolt 4 is inserted into the locking hole 205 on the base 2 body 202. The locking hole 205 is a countersunk hole.

[0052] The assembly process of this embodiment is as follows: First, insert the plug 203 of the base 2 into the stepped groove 103 of the mounting base 1, so that the pin 104 is inserted into the insertion hole 204 to achieve initial positioning; then, pass the bolt 4 through the first through hole 105, align it with the locking hole 205 of the base 2 and tighten it clockwise until the bolt head is fully embedded in the countersunk hole and the mating surfaces of the mounting base 1 and the base 2 are tightly fitted.

[0053] The working principle of this embodiment is as follows: the mounting base 1 and the base 2 are locked together by bolts 4, which are firmly connected and easy to disassemble. When it is necessary to maintain, repair or replace the clamping components, simply loosen the bolts 4 counterclockwise to separate the base 2 from the mounting base 1. The operation is convenient. The working principle of the clamping mechanism and the locking and unlocking components is the same as that of the basic embodiment. Under normal conditions, the moving jaw 7 is locked by the first spring 9 to clamp the puncture needle 10. The external drive toggle block 8 drives the insertion pin 801 to move along the irregular groove 505 to unlock, thus completing the picking and putting away of the puncture needle 10 and ensuring the stability and reliability of the puncture process.

[0054] Example 2

[0055] like Figures 8-9 As shown, in this embodiment, the fastener is a fixing pin 11, and the specific implementation is as follows:

[0056] A fixing pin 11 is provided between the mounting base 1 and the base 2. The fixing pin 11 is set as a stepped pin. The mounting base 1 and the base 2 are radially and circumferentially positioned by the fixing pin 11 to prevent relative rotation or radial offset between the mounting base 1 and the base 2.

[0057] Screw 12 is inserted through washer 13 and threadedly connected to mounting base 1 to lock mounting base 1, further improving the structural stability of mounting base 1 and preventing loosening during long-term use;

[0058] A second spring 15 is inserted and fitted on the fixing pin 11. The two ends of the second spring 15 abut against the steps of the mounting base 1 and the fixing pin 11, respectively, to provide axial preload for the two to cooperate, ensuring that the fixing pin 11 is always tightly engaged with the locking hole 205 and preventing the fixing pin 11 from falling off.

[0059] The assembly process of this embodiment is as follows: First, insert the insert block 203 of the base 2 into the stepped groove 103, so that the pin 104 passes through the insertion hole 204, and achieve the initial positioning of the base 2 and the mounting base 1; then place the pad block 13 on the side of the first through hole 105 of the mounting base 1, and fit the second spring 15 into the first through hole 105. After passing the fixing pin 11 through the first through hole 105 and fitting the second spring 15, lock it in place in the locking hole 205.

[0060] The working principle of this embodiment is as follows: Under normal conditions, the first spring 9 pushes the actuating block 8 to move upward, and the insertion pin 801 is inserted into the locking hole 703 of the moving jaw 7. The moving jaw 7 and the fixed jaw 6 are closed, and the clamping cavity is in a locked state. The infusion puncture needle 10 can be placed into the clamping cavity. The first arc segment 602 and the second arc segment 702 fit together with the puncture needle 10 to achieve a firm clamping. The catheter 16 is placed in the straight section groove 506 and the arc segment groove 507 for limitation.

[0061] The locking hole 205 is designed as a stepped hole, which is compatible with the stepped structure of the fixing pin 11, further improving the stability of the fit between the fixing pin 11 and the locking hole 205, and ensuring that the axial preload is transmitted evenly.

[0062] When the puncture needle 10 needs to be replaced, the external drive mechanism presses down on the protrusion 803, causing the actuating block 8 to move downward. The first spring 9 is compressed, and the insertion pin 801 is dislodged from the locking hole 703 and moves to the side of the irregular groove 505 (adapting to the trajectory design of the irregular groove 505 to achieve smooth displacement of the insertion pin 801). This releases the limit on the moving jaw 7. Rotating the moving jaw 7 opens the clamping cavity, allowing the old puncture needle 10 to be removed and the new puncture needle 10 to be inserted. After the protrusion 803 is released, the first spring 9 returns to its original position, the actuating block 8 moves upward, the insertion pin 801 is reinserted into the locking hole 703, and the moving jaw 7 closes and locks, completing the replacement of the puncture needle 10.

[0063] It should be noted that, in this document, the terms "including," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of the present invention. These examples are merely for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be pointed out that, due to the limitations of written expression and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or variations without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A clamping assembly and lifting device for an infusion puncture head, comprising a mounting base (1), a base (2) mounted on the mounting base (1), and a mating block (5) disposed on the base (2), wherein the mating block (5) is provided with a clamping mechanism for clamping an infusion puncture needle (10), characterized in that: The clamping mechanism includes a fixed clamping jaw (6) fixedly disposed on the mating block (5) and a movable clamping jaw (7) rotatably connected to the mating block (5). The fixed clamping jaw (6) and the movable clamping jaw (7) are arranged opposite to each other, and the two together form a clamping cavity for clamping the puncture needle (10). A locking and unlocking assembly for controlling the opening and closing of the moving gripper (7) is provided between the mating block (5) and the base (2). The locking and unlocking assembly includes a toggle block (8) and an elastic element that provides a reset preload force to the toggle block (8). It also includes a lifting drive assembly for driving the mounting base (1) to move vertically in a straight line. The lifting drive assembly includes a vertical guide structure and a drive structure connected to the mounting base (1) and driving the mounting base (1) to move vertically along the vertical guide structure.

2. The clamping assembly and lifting device for an infusion puncture head according to claim 1, characterized in that, The mounting base (1) includes a connecting block (101), a seat body (102) is provided on one side of the connecting block (101), a stepped groove (103) is provided in the seat body (102), a pin (104) for positioning the base (2) is provided in the stepped groove (103), a first through hole (105) is provided on one side of the seat body (102), and a fastener for locking the mounting base (1) and the base (2) is provided in the first through hole (105).

3. The clamping assembly and lifting device for an infusion puncture head according to claim 2, characterized in that, An auxiliary block (3) is provided at the lower end of the base (102), and a slot (301) is provided in the middle of the auxiliary block (3).

4. The clamping assembly and lifting device for an infusion puncture head according to claim 2, characterized in that, The base (2) includes a base body (202), on which a connecting post (201) is provided to connect with the mating block (5), and a plug (203) is provided at the lower end of the base body (202). A plug hole (204) for inserting a pin (104) is provided at the bottom center of the plug (203), and a locking hole (205) suitable for fasteners is provided at the side end of the base body (202).

5. The clamping assembly and lifting device for an infusion puncture head according to claim 1, characterized in that, The actuating block (8) is provided with a plug pin (801), and the middle part of the plug pin (801) is connected to the arc block (802) through the support block (804). The outer wall of the arc block (802) is a smoothly transitioned arc surface. The side wall of the actuating block (8) is provided with a protrusion (803) for docking with an external drive.

6. The clamping assembly and lifting device for an infusion puncture head according to claim 1, characterized in that, The elastic element includes a first spring (9), which is a compression spring. The bottom end of the first spring (9) abuts against the base (2), and the top end abuts against the actuating block (8), providing an axially upward reset preload force to the actuating block (8).

7. The clamping assembly and lifting device for an infusion puncture head according to claim 1, characterized in that, The mating block (5) includes a mating block body (501), on which a step (502) for placing a limiting piece (14) is provided. The lower middle part of the step (502) is provided with a straight section groove (506) and an arc section groove (507) for inserting a conduit (16). A column (504) is provided on the side end of the mating block body (501). A second through hole (503) is provided in the column (504), and a shaped groove (505) communicating with the second through hole (503) is provided at the bottom. The upper end of the insertion pin (801) of the actuating block (8) is inserted into the second through hole (503) and slides in the shaped groove (505).

8. The clamping assembly and lifting device for an infusion puncture head according to claim 1, characterized in that, The fixed clamp (6) includes a fixed clamp body (601), a first arc segment (602) is provided on the side of the fixed clamp body (601) facing the movable clamp (7), the movable clamp (7) is provided with a movable clamp body (701), the movable clamp body (701) is provided with a second arc segment (702) on the side of the movable clamp body (701) facing the fixed clamp (6), the first arc segment (602) and the second arc segment (702) together form the clamping cavity, and the radii of curvature of the first arc segment (602) and the second arc segment (702) are both matched with the outer diameter of the puncture needle (10) to be clamped.

9. The clamping assembly and lifting device for an infusion puncture head according to claim 5, characterized in that, The movable gripper (7) has a locking hole (703) that is adapted to the upper end of the insertion pin (801). Under normal conditions, the insertion pin (801) is inserted into the locking hole (703) to limit the rotation of the movable gripper (7).

10. The clamping assembly and lifting device for an infusion puncture head according to claim 1, characterized in that, The lifting drive assembly includes a drive motor (19), a vertically arranged lead screw (17), and a guide rod (18) parallel to the lead screw (17). The lead screw (17) is driven to the mounting base (1), and the guide rod (18) is slidably engaged with the mounting base (1). The output end of the drive motor (19) is connected to the lead screw (17) and is used to drive the mounting base (1) to move up and down along the guide rod (18).

Images