Lancet assembly device
The blood collection needle assembly equipment, designed with a rotary table and bevel gear meshing, achieves automated assembly of needle bodies and protective sleeves, solving the problems of low efficiency and safety hazards of existing equipment, and improving assembly efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIHAI KARMADE MEDICAL TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-03
AI Technical Summary
Existing blood collection needle assembly equipment has low assembly efficiency and poses safety hazards.
The design employs a combination of a rotary table, mounting box, support plate, mounting shaft, pressure sleeve, material distribution table, material feeding plate, material distribution trough, storage hopper, and electric push rod to achieve automated assembly of the needle body and protective sleeve. The synchronous rotation driven by the motor and the meshing of bevel gears ensure the corresponding position and stable connection.
This improved the efficiency of blood collection needle assembly, avoided safety hazards, ensured a stable connection between the needle body and the protective sleeve, and increased the assembly qualification rate.
Smart Images

Figure CN224445173U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to blood collection needles, and more particularly to blood collection needle assembly equipment. Background Technology
[0002] A blood collection needle is an instrument used in medical testing to collect blood samples. It mainly consists of a needle tip and a syringe, with the needle tip located at the head of the syringe. Assembly typically requires the assistance of assembly equipment to attach a protective sleeve to the needle tip.
[0003] Existing assembly equipment typically transports the blood collection needle and protective sleeve to the same location during needle casing assembly, and then assembles them manually. This not only results in low assembly efficiency but also poses safety hazards. Summary of the Invention
[0004] The purpose of this invention is to provide a blood collection needle assembly device that has the function of automatically assembling the needle body and protective sleeve, thereby improving assembly efficiency and avoiding safety hazards.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A blood collection needle assembly device is provided, comprising a rotating table and a dispensing table. An installation box and a support plate are fixedly connected to the upper end face of the rotating table. An installation shaft is fixedly connected to the upper end of the support plate. A pressure sleeve is rotatably sleeved around the installation shaft. A torsion spring is sleeved between the rotating cylinder of the pressure sleeve and the installation shaft. A needle body is sleeved between the pressure sleeve and the installation box. A material feeding disc is rotatably arranged inside the dispensing table. A dispensing groove is opened on the outer wall of the rotating table. A storage hopper is fixedly connected to the upper end of the dispensing table. A protective sleeve is provided inside the storage hopper. An electric push rod is fixedly connected to the rear end of the dispensing table near its lower end face. The output end of the electric push rod passes through the dispensing table.
[0006] Optionally, a drive shaft is rotatably connected to the center of the rotary table, and a drive bevel gear is fixedly connected to the outer wall of the drive shaft. A driven shaft is rotatably connected to the center of the material distribution table, and the material feeding disc is fixedly connected to the outer wall of the driven shaft. A driven bevel gear is fixedly connected to the outer wall of the driven shaft, and the driven bevel gear meshes with the drive bevel gear.
[0007] Optionally, a support platform is provided below the rotary table, a motor is fixedly connected to the lower end face of the support platform, the output end of the motor is fixedly connected to the drive shaft, an mounting plate is fixedly connected to the outer wall of the material distribution table, and the upper end of the drive shaft is rotatably connected to the mounting plate.
[0008] Optionally, there are multiple mounting boxes, and the multiple mounting boxes are evenly distributed on the upper surface of the rotary table near the side.
[0009] Optionally, there are multiple material distribution slots, and the multiple material distribution slots are evenly distributed on the outer wall of the material feeding plate. The number of the multiple material distribution slots is the same as the number of the multiple mounting boxes.
[0010] Optionally, the outer diameter of the output end of the electric push rod is smaller than the inner diameter of the material distribution trough, and the stroke length of the electric push rod is greater than the depth of the material distribution trough.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. This utility model, through the cooperation of a rotating table, mounting box, support plate, mounting shaft, pressure sleeve, dispensing table, feeding disc, dispensing trough, storage hopper, and electric push rod, enables multiple protective sleeves to be arranged and stored in advance through the storage hopper. Then, the feeding disc feeds the sleeves, moving them evenly to the bottom of the dispensing table. Finally, the electric push rod pushes the protective sleeves out, allowing them to be fitted onto the needle tip of the needle body located in the mounting box, achieving automatic assembly, improving assembly efficiency, and avoiding safety hazards. In addition, the mounting box has a slotted structure adapted to the needle body, ensuring that the needle body remains stable after being placed in the mounting box and pressed by the pressure sleeve, preventing the needle body from moving during the fitting process and causing the needle tip to pierce into the protective sleeve shell.
[0013] 2. This utility model, through the mutual cooperation of a motor, drive shaft, active bevel gear and driven bevel gear, enables a rotary table and a dispensing table of the same diameter to rotate synchronously, ensuring that the needle body and protective sleeve are in the same position each time, which facilitates the assembly of the blood collection needle housing. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the internal structure of the material distribution table of this utility model;
[0016] Figure 2 This is a schematic diagram of the main structure of this utility model;
[0017] Figure 3 This is a top view of the structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the internal structure of the rotating cylinder of the pressure sleeve of this utility model;
[0019] Figure 5 This is a front view structural diagram of the present invention.
[0020] In the diagram: 1. Rotary table; 2. Distributor table; 3. Support table; 4. Motor; 5. Drive shaft; 6. Mounting box; 7. Support plate; 8. Mounting shaft; 9. Pressure sleeve; 10. Needle body; 11. Feeding disc; 12. Distributor trough; 13. Storage hopper; 14. Protective sleeve; 15. Driven shaft; 16. Driven bevel gear; 17. Driven bevel gear; 18. Electric push rod; 19. Mounting plate; 20. Torsion spring. Detailed Implementation
[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0025] Reference Figure 1-5The blood collection needle assembly equipment provided in this embodiment of the present invention will now be described. The blood collection needle assembly equipment includes a rotary table 1 and a dispensing table 2. An mounting box 6 and a support plate 7 are fixedly connected to the upper end face of the rotary table 1. An mounting shaft 8 is fixedly connected to the upper end of the support plate 7. A pressure sleeve 9 is rotatably sleeved on the outside of the mounting shaft 8. A torsion spring 20 is sleeved between the rotating cylinder of the pressure sleeve 9 and the mounting shaft 8. A needle body 10 is sleeved between the pressure sleeve 9 and the mounting box 6. The torsion spring 20 ensures that the pressure sleeve 9 can automatically reset and press down after being lifted, facilitating the pressing and fixing of the needle body 10 within the mounting box 6. Because the groove in the mounting box 6 is matched to the needle body 10, it can prevent the needle body 10 from moving during the casing process, thus preventing the needle tip from piercing into the protective sleeve 14 and improving the casing fit. The material distribution platform 2 is equipped with a rotating material feeding plate 11. A material distribution groove 12 is provided on the outer wall of the rotating platform 1. A storage hopper 13 is fixedly connected to the upper end of the material distribution platform 2. A protective sleeve 14 is provided in the storage hopper 13. An electric push rod 18 is fixedly connected to the rear end of the material distribution platform 2 near the lower end face. The output end of the electric push rod 18 passes through the material distribution platform 2. By rotating the material feeding plate 11, multiple material distribution grooves 12 are driven to pass under the storage hopper 13 in sequence, thereby ensuring that multiple protective sleeves 14 fall into the material distribution grooves 12 in sequence and are brought to the lower part of the material distribution platform 2. Then, the electric push rod 18 is activated to push out the protective sleeve 14 so that it is fitted onto the needle head of the needle body 10, completing the assembly.
[0026] The blood collection needle assembly equipment provided by this utility model can automatically assemble the needle body 10 and the protective sleeve 14 compared with the prior art, which improves the assembly efficiency and avoids safety hazards.
[0027] In another embodiment of this utility model, please refer to Figures 2 to 5 A drive shaft 5 is rotatably connected to the center of the rotary table 1. A driving bevel gear 17 is fixedly connected to the outer wall of the drive shaft 5. A driven shaft 15 is rotatably connected to the center of the material distribution table 2. A material feeding disc 11 is fixedly connected to the outer wall of the driven shaft 15. A driven bevel gear 16 is fixedly connected to the outer wall of the driven shaft 15. The driven bevel gear 16 and the driving bevel gear 17 mesh. A support platform 3 is provided below the rotary table 1. A motor 4 is fixedly connected to the lower end face of the support platform 3. The output end of the motor 4 is fixedly connected to the drive shaft 5. A mounting plate 19 is fixedly connected to the outer wall of 2. The upper end of the drive shaft 5 is rotatably connected to the mounting plate 19. The drive shaft 5 is driven to rotate by the motor 4, which in turn drives the rotary table 1 to rotate. At the same time, the drive shaft 5 drives the active bevel gear 17 to rotate, which in turn drives the driven bevel gear 16 to rotate, which in turn drives the driven shaft 15 to rotate, which in turn drives the feeding disc 11 to rotate, so that the feeding disc 11 and the rotary table 1 can rotate synchronously, thereby ensuring that the mounting box 6 and the dispensing groove 12 can be aligned, which facilitates the assembly of the protective sleeve 14 and the needle body 10.
[0028] In another embodiment of this utility model, please refer to Figures 1 to 3There are multiple mounting boxes 6, and the multiple mounting boxes 6 are evenly distributed on the upper end face of the rotating table 1 near the side. There are multiple material distribution grooves 12, and the multiple material distribution grooves 12 are evenly distributed on the outer wall of the feeding plate 11. The number of multiple material distribution grooves 12 is the same as the number of multiple mounting boxes 6, to ensure that the needle of the needle body 10 and the protective sleeve 14 can be stably connected.
[0029] In another embodiment of this utility model, please refer to Figure 1 and Figure 3 The outer diameter of the output end of the electric push rod 18 is smaller than the inner diameter of the dispensing groove 12, which makes it easier for the electric push rod 18 to push the protective sleeve 14 to move. The stroke length of the electric push rod 18 is greater than the depth of the dispensing groove 12, ensuring that the electric push rod 18 can completely push the protective sleeve 14 out of the dispensing table 2 so that it fits onto the needle.
[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A blood collection needle assembly device, comprising a rotary table (1) and a dispensing table (2), characterized in that: The upper end face of the rotary table (1) is fixedly connected to the mounting box (6) and the support plate (7). The upper end of the support plate (7) is fixedly connected to the mounting shaft (8). The mounting shaft (8) is rotatably sleeved with a pressure sleeve (9). A torsion spring (20) is sleeved between the rotating cylinder of the pressure sleeve (9) and the mounting shaft (8). A needle body (10) is sleeved between the pressure sleeve (9) and the mounting box (6). A material feeding plate (11) is rotatably arranged inside the material distribution table (2). A material distribution groove (12) is opened on the outer wall of the rotary table (1). A storage hopper (13) is fixedly connected to the upper end of the material distribution table (2). A protective sleeve (14) is arranged inside the storage hopper (13). An electric push rod (18) is fixedly connected to the rear end of the material distribution table (2) near the lower end face. The output end of the electric push rod (18) is set through the material distribution table (2).
2. The lancet assembly device of claim 1, wherein: The rotating table (1) is rotatably connected to a drive shaft (5) in the middle. A drive bevel gear (17) is fixedly connected to the outer wall of the drive shaft (5). The material distribution table (2) is rotatably connected to a driven shaft (15) in the middle. The material feeding disc (11) is fixedly connected to the outer wall of the driven shaft (15). A driven bevel gear (16) is fixedly connected to the outer wall of the driven shaft (15). The driven bevel gear (16) and the drive bevel gear (17) mesh.
3. The lancet assembly device of claim 2, wherein: A support platform (3) is provided below the rotary table (1). A motor (4) is fixedly connected to the lower end face of the support platform (3). The output end of the motor (4) is fixedly connected to the drive shaft (5). An installation plate (19) is fixedly connected to the outer wall of the material distribution table (2). The upper end of the drive shaft (5) is rotatably connected to the installation plate (19).
4. The lancet assembly device of claim 1 wherein: The number of mounting boxes (6) is multiple, and the multiple mounting boxes (6) are evenly distributed on the upper surface of the rotating table (1) near the side.
5. The lancet assembly device of claim 1 wherein: The number of the material distribution grooves (12) is multiple, and the multiple material distribution grooves (12) are evenly distributed on the outer wall of the material feeding plate (11). The number of the multiple material distribution grooves (12) is the same as the number of the multiple mounting boxes (6).
6. The lancet assembly device of claim 1 wherein: The outer diameter of the output end of the electric push rod (18) is smaller than the inner diameter of the material distribution groove (12), and the stroke length of the electric push rod (18) is greater than the depth of the material distribution groove (12).