gripping device

Abstract

The utility model relates to injection pump technical field, especially disclose a clamping device, clamping device includes clamping piece and damping mechanism, one end of clamping piece is used to be connected with infusion pole, and damping mechanism includes pivot, sleeve assembly and adjusting part, one end of pivot is connected with the other end of clamping piece, and one end of sleeve assembly is sleeved in the other end of pivot, and can rotate relative to pivot, and the other end of sleeve assembly is used to be connected with interventional injection pump, and adjusting part is installed in the outer circumferential side of sleeve assembly, to adjust the contact pressure of sleeve assembly and pivot radial direction, realize the adjustment of friction between both, ensure that interventional injection pump can stably maintain in the angle position after rotating to the designated position, thereby improved the work stability of interventional injection pump.

Description

Technical Field

[0001] This utility model relates to the field of injection pump technology, and in particular to a clamping device. Background Technology

[0002] Interventional infusion pumps require a clamping device to mount them on an IV stand at a specific angle. This angle is typically chosen to facilitate injection, but it hinders the venting process after injection. Furthermore, most interventional infusion pumps are fixedly connected to the IV stand, and their angle relative to the stand is not adjustable. Therefore, existing clamping devices cannot simultaneously achieve stable injection and efficient venting, leading to reduced pump efficiency. Utility Model Content

[0003] The main purpose of this invention is to propose a clamping device that aims to solve the problem that existing interventional injection pumps cannot rotate on their own, resulting in reduced working efficiency.

[0004] To solve the above problems, this utility model proposes a clamping device, comprising:

[0005] A clamping member, one end of which is used to connect to an infusion rod; and

[0006] A damping mechanism is provided, comprising a rotating shaft, a sleeve assembly, and an adjusting member. One end of the rotating shaft is connected to the other end of the clamping member. One end of the sleeve assembly is sleeved on the other end of the rotating shaft and can rotate relative to the rotating shaft. The other end of the sleeve assembly is used to connect to an interventional injection pump. The adjusting member is installed on the outer periphery of the sleeve assembly to adjust the radial contact pressure between the sleeve assembly and the rotating shaft.

[0007] In one embodiment, the sleeve assembly includes a cylinder and a first flange, the first flange being sleeved and rotatably connected to the other end of the rotating shaft, the cylinder being connected to the first flange, and the adjusting member being connected to the outer periphery of the cylinder.

[0008] In one embodiment, the rotating shaft includes a base and a first shaft body, the first shaft body being connected to the end of the base away from the clamping member, the first flange including a first base plate and a first extension, the first extension being connected to the end of the first base plate away from the base, the first base plate abutting against the base, the first extension being sleeved on the first shaft body, and the cylindrical body being sleeved on the first extension and connected to the first base plate.

[0009] In one embodiment, an adjustment hole is provided on the outer periphery of the cylinder, and the adjustment member is threadedly connected to the adjustment hole and abuts against the first extension.

[0010] In one embodiment, the damping mechanism further includes a protective plate disposed between the cylinder and the first extension, and the adjusting member abuts against the protective plate.

[0011] In one embodiment, a clearance groove is provided at the end of the first shaft away from the base, and a protrusion is provided on the inner wall of the cylinder. The protrusion rotates in the clearance groove and is limited to abut against the opposite groove wall of the clearance groove.

[0012] In one embodiment, either end of the cylinder and the first flange facing each other is provided with a snap-fit ​​protrusion, and the other end is provided with a corresponding snap-fit ​​hole, wherein the snap-fit ​​protrusion is inserted into the snap-fit ​​hole.

[0013] In one embodiment, the damping mechanism further includes a second flange, the second flange including a second base plate and a second extension connected to each other, the rotating shaft further includes a second shaft body, the second shaft body being connected to the end of the first shaft body away from the base, the second extension body being sleeved on the second shaft body, and the second base plate abutting against the end of the cylinder away from the base.

[0014] In one embodiment, the first flange is made of polyoxymethylene.

[0015] In one embodiment, the damping mechanism further includes a mounting block, and the clamping member has a corresponding mounting groove. The mounting block is mounted on one end of the rotating shaft and inserted into the mounting groove.

[0016] This invention proposes a clamping device, including a clamping component and a damping mechanism. The damping mechanism includes a rotating shaft, a sleeve assembly, and an adjusting component. One end of the rotating shaft is connected to the other end of the clamping component, and one end of the sleeve assembly is fitted onto the other end of the rotating shaft. The other end of the sleeve assembly is used to connect to an interventional infusion pump. When the interventional infusion pump needs to change its function, the sleeve assembly can be rotated relative to the rotating shaft, thereby causing the interventional infusion pump to rotate. This ensures that the interventional infusion pump is at the optimal angle during injection and venting, thus improving the working efficiency of the interventional infusion pump. In addition, the adjusting component can adjust the radial contact pressure between the sleeve assembly and the rotating shaft, thereby adjusting the friction between them and ensuring that the interventional infusion pump can stably maintain that angle position after rotating to the designated position, thus improving the working stability of the interventional infusion pump. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort.

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the clamping device of this utility model;

[0019] Figure 2 for Figure 1 Exploded view of the structure in the Chinese embodiment;

[0020] Figure 3 for Figure 1 Cross-sectional view of the damping mechanism in the Chinese embodiment;

[0021] Figure 4 for Figure 1 Exploded view of the damping mechanism in the Chinese embodiment;

[0022] Figure 5 for Figure 1 A schematic diagram of the rotating shaft in the embodiment;

[0023] Figure 6 for Figure 1 A schematic diagram of the structure of the cylinder in the Chinese embodiment;

[0024] Figure 7 for Figure 1 A schematic diagram of the structure of the first flange in the Chinese embodiment.

[0025] Explanation of icon numbers:

[0026] 10. Clamping component; 11. Clamping body; 12. Adjusting screw; 13. Mounting groove; 20. Damping mechanism; 21. Rotating shaft; 211. Base; 212. First shaft; 2121. Clearance groove; 213. Second shaft; 22. Sleeve assembly; 221. Cylinder; 2211. Adjusting hole; 2212. Protrusion; 2213. Snap-fit ​​protrusion; 222. First flange; 2221. First base plate; 2222. First extension; 2223. Snap-fit ​​hole; 23. Adjusting component; 24. Protective plate; 25. Second flange; 251. Second base plate; 252. Second extension; 26. Mounting block;

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without inventive effort are within the protection scope of the present utility model.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] Interventional infusion pumps require a clamping device to mount them on an IV stand at a specific angle. This angle is typically chosen to facilitate injection, but it hinders the venting process after injection. Furthermore, most interventional infusion pumps are fixedly connected to the IV stand, and their angle relative to the stand is not adjustable. Therefore, existing clamping devices cannot simultaneously achieve stable injection and efficient venting, leading to reduced pump efficiency.

[0032] To address the aforementioned problems, this invention proposes a clamping device, which aims to solve the problem that existing interventional injection pumps cannot rotate on their own, resulting in reduced working efficiency.

[0033] like Figure 1 and Figure 2In one embodiment, the clamping device includes a clamping member 10 and a damping mechanism 20. One end of the clamping member 10 is used to connect to the infusion rod. The damping mechanism 20 includes a rotating shaft 21, a sleeve assembly 22, and an adjusting member 23. One end of the rotating shaft 21 is connected to the other end of the clamping member 10. One end of the sleeve assembly 22 is sleeved on the other end of the rotating shaft 21 and can rotate relative to the rotating shaft 21. The other end of the sleeve assembly 22 is used to connect to the interventional infusion pump. The adjusting member 23 is installed on the outer periphery of the sleeve assembly 22 to adjust the contact pressure of the sleeve assembly 22 and the rotating shaft 21 in the radial direction.

[0034] In this embodiment, the clamping member 10 is used to achieve a stable connection between the entire clamping device and the infusion rod. The clamping member 10 includes a clamping body 11 and an adjusting screw 12. The clamping body 11 is a U-shaped jaw, and the adjusting screw 12 is threadedly connected to one clamping end of the jaw. In use, the U-shaped jaw is first positioned on the outer periphery of the infusion rod, and then the adjusting screw 12 is rotated so that the screw-in end of the adjusting screw 12 tightly abuts against the infusion rod. This achieves a tight connection between the other clamping end of the clamping member 10 and the screw-in end of the adjusting screw 12 with the infusion rod body, thereby ensuring a stable connection between the entire clamping device and the infusion rod. When the clamping device needs to be detached from the infusion rod, simply loosen the adjusting screw 12 to complete the separation.

[0035] The damping mechanism 20 is a mechanism that enables relative rotation between the clamping member 10 and the interventional injection pump and provides damping force. It mainly includes a rotating shaft 21, a sleeve assembly 22, and an adjusting component 23. One end of the rotating shaft 21 is connected to the other end of the clamping member 10, and the connection method can be a snap-fit ​​or threaded connection. The shaft is made of a material with good wear resistance to ensure it can withstand repeated rotation and stress. The sleeve assembly 22 is fitted onto the other end of the rotating shaft 21, and the two can be clearance-fitted to allow the sleeve assembly 22 to rotate freely relative to the rotating shaft 21. The other end of the sleeve assembly 22 is connected to the interventional injection pump, and the connection method can be adapted according to the interface design of the interventional injection pump, such as a snap-fit ​​connection or a threaded connection. Adjusting component 23 is installed on the outer periphery of sleeve assembly 22. It can be a bolt or a knob. When adjusting component 23 is tightened, it generates radial pressure on sleeve assembly 22, increasing the contact pressure between the inner wall of sleeve assembly 22 and rotating shaft 21, thereby increasing the friction between them, i.e., increasing the damping force. When adjusting component 23 is loosened, the contact pressure decreases, and the damping force also decreases. The setting of adjusting component 23 realizes the adjustment of the contact pressure between sleeve assembly 22 and rotating shaft 21, thereby realizing the adjustment of damping force. When precise angle adjustment is required, the damping force can be increased so that the interventional injection pump can be stably maintained in the desired position after adjustment; when rapid angle adjustment is required, the damping force can be decreased, making rotation smoother and less strenuous. This adjustability greatly improves the applicability and ease of use of the clamping device.

[0036] The clamping device proposed in this utility model includes a clamping member 10 and a damping mechanism 20. The damping mechanism 20 includes a rotating shaft 21, a sleeve assembly 22, and an adjusting member 23. One end of the rotating shaft 21 is connected to the other end of the clamping member 10, and one end of the sleeve assembly 22 is sleeved on the other end of the rotating shaft 21. The other end of the sleeve assembly 22 is used to connect to the interventional infusion pump. When the interventional infusion pump needs to change its function, the sleeve assembly 22 can be rotated relative to the rotating shaft 21, thereby causing the interventional infusion pump to rotate. This ensures that the interventional infusion pump is at the optimal angle during injection and venting, thus improving the working efficiency of the interventional infusion pump. In addition, the adjusting member 23 can also adjust the radial contact pressure between the sleeve assembly 22 and the rotating shaft 21, thereby adjusting the friction between the two and ensuring that the interventional infusion pump can stably maintain that angle position after rotating to the designated position, thus improving the working stability of the interventional infusion pump.

[0037] like Figures 1 to 3 In one embodiment, the sleeve assembly 22 includes a cylinder 221 and a first flange 222. The first flange 222 is sleeved and rotatably connected to the other end of the rotating shaft 21. The cylinder 221 is connected to the first flange 222, and the adjusting member 23 is connected to the outer periphery of the cylinder 221.

[0038] In this embodiment, the cylindrical body 221 is a cylindrical structure with one end closed and the other open, and its interior is hollow, forming a mounting cavity. This mounting cavity provides space for the first flange 222 and the rotating shaft 21. The length and inner diameter of the cylindrical body 221 can be adapted to the length and diameter of the rotating shaft 21 to ensure that the rotating shaft 21 and the first flange 222 can be installed smoothly without affecting relative rotation. The main structure of the first flange 222 is disc-shaped, with a through hole in the center that matches the rotating shaft 21, so as to fit and rotate onto the other end of the rotating shaft 21. The first flange 222 is made of wear-resistant material, and the connection between the first flange 222 and the cylindrical body 221 can be achieved by snap-fit ​​or threaded connection. When the adjusting member 23 is tightened, it generates radial compressive force on the cylindrical body 221. This force is transmitted to the first flange 222, increasing the contact pressure between the first flange 222 and the rotating shaft 21, thereby increasing the damping force. When the adjusting member 23 is loosened, the contact pressure decreases, and the damping force decreases accordingly. Meanwhile, the design of the first flange 222 avoids direct contact between the cylinder 221 and the rotating shaft 21, preventing hard friction between the two from damaging the cylinder 221, thereby improving the service life of the sleeve assembly 22.

[0039] like Figures 1 to 4 Furthermore, the rotating shaft 21 includes a base 211 and a first shaft 212. The first shaft 212 is connected to the end of the base 211 away from the clamping member 10. The first flange 222 includes a first base plate 2221 and a first extension 2222. The first extension 2222 is connected to the end of the first base plate 2221 away from the base 211. The first base plate 2221 abuts against the base 211. The first extension 2222 is sleeved on the first shaft 212. The cylindrical body 221 is sleeved on the first extension 2222 and connected to the first base plate 2221.

[0040] In this embodiment, the base 211 and the first shaft 212 are concentrically arranged, and their connection method can be welding or integral design to ensure the stability of the connection between them. The base 211 can be disc-shaped or columnar, with a cross-sectional area larger than the first shaft 212 to ensure sufficient support strength. The first shaft 212 is connected to the end of the base 211 away from the clamping member 10 and has a columnar structure. Correspondingly, the first substrate 2221 and the first extension 2222 are also concentrically arranged, and their connection method can also be welding or integral design to ensure the stability of the connection between them. The first substrate 2221 is the base part of the first flange 222. It is disc-shaped and its cross-sectional area is adapted to the cross-sectional area of ​​the base 211 to ensure that it can completely cover the base 211. The first extension 2222 is connected to the end of the first substrate 2221 away from the base 211. It is a hollow columnar structure and its inner diameter matches the outer diameter of the first shaft 212 so that it can be fitted onto the first shaft 212 and form a rotational fit with it. At the same time, the opening edge of the cylinder 221 is connected to the first substrate 2221.

[0041] With the above configuration, the first substrate 2221 abuts against and completely covers the base 211, while the first extension 2222 completely covers the first shaft 212. This ensures that the cylinder 221 will not directly contact the rotating shaft 21 in either the radial or axial direction, completely avoiding hard friction between the two and further improving the service life of the sleeve assembly 22.

[0042] like Figures 1 to 4 In one embodiment, an adjustment hole 2211 is provided on the outer periphery of the cylinder 221, and the adjustment member 23 is threadedly connected to the adjustment hole 2211 and abuts against the first extension 2222.

[0043] In this embodiment, the adjusting hole 2211 is formed on the outer periphery of the cylinder 221 and is a hole-like structure for installing the adjusting member 23. The inner wall of the adjusting hole 2211 is provided with an internal thread, which matches the external thread of the adjusting member 23 to achieve a threaded connection between the two. The adjusting hole 2211 is usually located in the area of ​​the cylinder 221 near the first extension 2222 to ensure that the adjusting member 23 can smoothly abut against the first extension 2222. The number of adjusting holes 2211 can be set to one or more according to actual needs. Multiple adjusting holes 2211 can be evenly distributed along the circumference of the cylinder 221 to achieve more uniform pressure adjustment of the first extension 2222. In this embodiment, the adjusting member 23 is installed in the adjusting hole 2211 by threaded connection, with one end abutting against the first extension 2222. When the adjusting member 23 is tightened, it moves inward into the cylinder 221, generating radial pressure on the first extension 2222. This increases the contact pressure between the inner wall of the first extension 2222 and the first shaft 212, thereby increasing the friction between them and thus increasing the damping force. When the adjusting member 23 is loosened, it moves outward from the cylinder 221, reducing the radial pressure on the first extension 2222. The contact pressure between the first extension 2222 and the first shaft 212 also decreases, reducing the damping force. The use of a threaded connection allows for precise control of the pressure on the first extension 2222 by the adjusting member 23, thus achieving precise adjustment of the damping force. Simultaneously, the threaded connection has self-locking properties, ensuring that the adjusting member 23 remains stably in its current position after adjustment, preventing pressure changes due to vibration or other factors and guaranteeing the stability of the damping force.

[0044] like Figures 1 to 4 In one embodiment, the damping mechanism 20 further includes a protective plate 24, which is disposed between the cylinder 221 and the first extension 2222, and the adjusting member 23 abuts against the protective plate 24.

[0045] In this embodiment, the protective plate 24 is a sheet-like structure disposed between the cylinder 221 and the first extension 2222. Its material can be a material with certain elasticity and wear resistance, or a friction plate can be used directly as the protective plate 24. The shape of the protective plate 24 is usually adapted to the contact area between the cylinder 221 and the first extension 2222, and can be circular, arc-shaped, or annular, etc., to ensure complete coverage of the contact area between the adjusting member 23 and the first extension 2222. The thickness of the protective plate 24 is designed according to actual needs, so that it has sufficient strength to withstand the pressure of the adjusting member 23 on the one hand, and a certain degree of elasticity to provide a buffering effect on the other. The provision of the protective plate 24 ensures that the adjusting member 23 no longer directly abuts against the first extension 2222, but rather against the protective plate 24. When the adjusting member 23 is tightened, it applies pressure to the protective plate 24. The protective plate 24 deforms under this pressure, uniformly transmitting the pressure to the first extension 2222, increasing the contact pressure between the first extension 2222 and the first shaft 212, thereby increasing the damping force. When the adjusting member 23 is loosened, the deformation of the protective plate 24 returns to normal, reducing the pressure on the first extension 2222, and consequently decreasing the damping force. The protective plate 24 ensures more uniform pressure transmission from the adjusting member 23 to the first extension 2222, while preventing direct contact between the adjusting member 23 and the first extension 2222. This prevents scratches, indentations, or other damage to the outer surface of the first extension 2222 during tightening, thus extending the service life of the first extension 2222 and reducing maintenance costs due to component damage.

[0046] like Figure 4 and Figure 5 In one embodiment, the first shaft 212 has a relief groove 2121 at one end away from the base 211, and the inner wall of the cylinder 221 is provided with a corresponding protrusion 2212, which rotates within the relief groove 2121.

[0047] In this embodiment, an annular clearance groove 2121 is provided at the end of the first shaft 212 facing away from the base 211, and a protrusion 2212 with an arc-shaped outer contour is provided on the inner wall of the cylinder 221. The clearance groove 2121 and the protrusion 2212 limit the rotation angle of the sleeve assembly 22 relative to the rotating shaft 21. When the protrusion 2212 rotates to one extreme position of the clearance groove 2121, the sleeve assembly 22 drives the interventional injection pump to rotate to the optimal injection position; when the protrusion 2212 rotates to the other extreme position of the clearance groove 2121, the sleeve assembly 22 drives the interventional injection pump to rotate to the optimal venting position. This achieves precise switching of the interventional injection pump between two working states, and is easy to operate, requiring only the protrusion 2212 to rotate to the two extreme positions of the clearance groove 2121, thereby improving the ease of operation for the operator.

[0048] like Figure 6 and Figure 7 In one embodiment, either end of the cylinder 221 and the first flange 222 facing each other is provided with a snap-fit ​​protrusion 2213, and the other end is provided with a snap-fit ​​hole 2223, with the snap-fit ​​protrusion 2213 inserted into the snap-fit ​​hole 2223.

[0049] In this embodiment, a snap-fit ​​protrusion 2213 is provided at one end of the cylinder 221, and a snap-fit ​​hole 2223 is provided at the first flange 222, with the two facing each other. The shape of the snap-fit ​​protrusion 2213 can be cylindrical, square, trapezoidal, or barbed, etc. The size of the snap-fit ​​hole 2223 is adapted to the shape of the snap-fit ​​protrusion 2213 to ensure that the snap-fit ​​protrusion 2213 can be smoothly inserted into the snap-fit ​​hole 2223, while forming a tight fit, thereby realizing a stable connection between the cylinder 221 and the first flange 222. At the same time, the operation is simple; the connection between the cylinder 221 and the first flange 222 can be completed simply by aligning the protrusion with the hole and inserting it, which greatly shortens the assembly time and improves production efficiency.

[0050] like Figures 1 to 4 In one embodiment, the damping mechanism 20 further includes a second flange 25, which includes a second base plate 251 and a second extension 252 connected to each other. The rotating shaft 21 also includes a second shaft body 213, which is connected to the end of the first shaft body 212 away from the base 211. The second extension 252 is sleeved on the second shaft body 213, and the second base plate 251 abuts against the end of the cylinder 221 away from the base 211.

[0051] In this embodiment, the damping mechanism 20 further includes a second flange 25, which is integrally designed and manufactured from a second base plate 251 and a second extension 252. The second base plate 251 is disc-shaped, and the second extension 252 is concentrically connected to the side of the second base plate 251 facing the cylinder 221, forming a hollow columnar structure. Its inner diameter is adapted to the outer diameter of the second shaft 213, allowing it to be fitted onto the second shaft 213 and form a rotational fit. The second shaft 213 is an extension of the rotating shaft 21, integrally connected to the end of the first shaft 212 away from the base 211, and has a columnar structure. The diameter of the second shaft 213 is smaller than the diameter of the first shaft 212, and its length is determined according to the length of the second extension 252 and the overall structural requirements. Additionally, a mounting groove 13 is provided at the end of the cylinder 221 away from the base 211. A through hole is provided in the center of the mounting groove 13. Threaded holes are provided at the centers of the second flange 25 and the second shaft 213 respectively. When the second flange 25 is installed in the designated position, the second base plate 251 abuts against the bottom wall of the mounting groove 13. The second extension 252 passes through the through hole and is sleeved on the second shaft 213. A bolt is then used to pass through the threaded holes of the second flange 25 and the second shaft 213 in sequence to tightly connect the second flange 25 to the end face of the cylinder 221. The arrangement of the second flange 25 and the first base plate 2221 of the first flange 222 form a bidirectional axial clamping of the cylinder 221, which can effectively limit the axial displacement of the cylinder 221 and avoid axial movement of the cylinder 221 due to long-term use or stress. This enhances the overall stability of the damping mechanism 20, ensuring that the interventional infusion pump maintains a stable position during rotation and use, and improving the safety of treatment.

[0052] In one embodiment, the first flange 222 is made of polyoxymethylene.

[0053] In this embodiment, polyoxymethylene (POM) is an engineering plastic with excellent comprehensive performance, possessing high strength, rigidity, and hardness, approaching the mechanical properties of metallic materials, while also exhibiting good wear resistance, self-lubrication, and fatigue resistance. POM has a low coefficient of friction, maintaining good sliding performance even under unlubricated conditions. These properties allow the first flange 222 to reduce frictional loss and rotational resistance when rotating relative to the first shaft 212, thanks to its excellent wear resistance and self-lubrication. This reduces the increase in clearance caused by wear, ensuring long-term stable rotational fit accuracy between the two components, thereby extending the service life of the clamping device and reducing maintenance frequency and costs.

[0054] like Figure 1 and Figure 2 In one embodiment, the damping mechanism 20 further includes a mounting block 26, and the clamping member 10 is provided with a mounting groove 13. The mounting block 26 is mounted on one end of the rotating shaft 21 and inserted into the mounting groove 13.

[0055] In this embodiment, the mounting block 26 is installed on the base 211 near the clamping member 10. The connection method can be snap-fit ​​or threaded connection to ensure the stability of the connection between the two. The clamping body 11 of the clamping member 10 has a corresponding mounting groove 13. The shape and size of the mounting groove 13 are adapted to the mounting block 26 to ensure that the mounting block 26 can be fully inserted and form a stable connection. The inner wall of the mounting groove 13 may also be provided with anti-slip textures or positioning holes, which cooperate with the positioning protrusions on the mounting block 26 to further enhance the stability of the connection and prevent the mounting block 26 from rotating or sliding within the mounting groove 13. In this embodiment, the damping mechanism 20 is detachably connected to the clamping member 10 via the mounting block 26 and the mounting groove 13. This ensures the stability of the connection between the rotating shaft 21 and the clamping member 10 while allowing the assembly and disassembly of the damping mechanism 20 and the clamping member 10 without the need for complex tools, greatly reducing maintenance difficulty and cost, and improving the maintainability of the equipment.

[0056] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A clamping device for use in interventional infusion pumps, characterized in that, The clamping device includes: A clamping member, one end of which is used to connect to an infusion rod; and A damping mechanism is provided, comprising a rotating shaft, a sleeve assembly, and an adjusting member. One end of the rotating shaft is connected to the other end of the clamping member. One end of the sleeve assembly is sleeved on the other end of the rotating shaft and can rotate relative to the rotating shaft. The other end of the sleeve assembly is used to connect to an interventional injection pump. The adjusting member is installed on the outer periphery of the sleeve assembly to adjust the radial contact pressure between the sleeve assembly and the rotating shaft.

2. The clamping device as described in claim 1, characterized in that, The sleeve assembly includes a cylinder and a first flange. The first flange is sleeved and rotatably connected to the other end of the rotating shaft. The cylinder is connected to the first flange, and the adjusting member is connected to the outer periphery of the cylinder.

3. The clamping device as described in claim 2, characterized in that, The rotating shaft includes a base and a first shaft, the first shaft being connected to the end of the base away from the clamping member; The first flange includes a first base plate and a first extension. The first extension is connected to the end of the first base plate away from the base. The first base plate abuts against the base. The first extension is sleeved on the first shaft. The cylinder is sleeved on the first extension and connected to the first base plate.

4. The clamping device as described in claim 3, characterized in that, An adjustment hole is provided on the outer periphery of the cylinder, and the adjustment component is threadedly connected to the adjustment hole and abuts against the first extension.

5. The clamping device as described in claim 4, characterized in that, The damping mechanism further includes a protective plate, which is disposed between the cylinder and the first extension, and the adjusting member abuts against the protective plate.

6. The clamping device as described in claim 5, characterized in that, The first shaft has a clearance groove at one end away from the base, and the inner wall of the cylinder has a corresponding protrusion. The protrusion rotates in the clearance groove and is limited to abut against the opposite groove wall of the clearance groove.

7. The clamping device as described in any one of claims 3 to 6, characterized in that, The cylinder and the first flange are provided with a snap-fit ​​protrusion at one end and a snap-fit ​​hole at the other end, and the snap-fit ​​protrusion is inserted into the snap-fit ​​hole.

8. The clamping device as described in any one of claims 3 to 6, characterized in that, The damping mechanism further includes a second flange, which includes a second base plate and a second extension connected to each other. The rotating shaft also includes a second shaft body, which is connected to the end of the first shaft body away from the base. The second extension is sleeved on the second shaft body, and the second base plate abuts against the end of the cylinder body away from the base.

9. The clamping device according to any one of claims 1 to 6, characterized in that, The first flange is made of polyoxymethylene.

10. The clamping device according to any one of claims 1 to 6, characterized in that, The damping mechanism further includes a mounting block, and the clamping member has a corresponding mounting groove. The mounting block is installed at one end of the rotating shaft and inserted into the mounting groove.

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