Manual alignment device suitable for large length range
By designing a manual needle alignment device applicable to a wide range of lengths, the problem of inconsistent needle lengths in existing technologies has been solved, achieving stable placement and alignment of needles and enhancing the applicability and safety of the device.
Patent Information
- Application Number
- CN202520209718.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-10
AI Technical Summary
In the existing technology, horizontal alignment can be achieved when the needle length is 4~8cm, but non-standard needles of 20~38cm cannot guarantee consistent position and have limited applicability.
A manual needle alignment device suitable for a wide range of lengths was designed, including a machine base, a fixed plate, a needle pressing mechanism, and a needle ejector mechanism. By setting the first and second needle release bars in parallel, and in conjunction with a sliding shaft and a limiting block, the needle tubes can be stably placed and aligned.
It enables the horizontal placement and alignment of 4-8cm and non-standard 20-38cm needles, enhancing the applicability of the device, avoiding needle slippage and operational safety hazards, and improving the grinding effect.
Smart Images
Figure CN223762883U_ABST
Abstract
Description
Technical Field
[0001] This application relates to medical needles, and more particularly to manual needle alignment devices applicable to a wide range of lengths. Background Technology
[0002] Medical syringes are medical devices used for injection, sampling, or treatment, and are widely used in the medical field. During the manufacturing process, the needle tip needs to be ground to make it smooth and sharp, thus enhancing safety during use. In the previous technology described in this application, the needle grinding machine's needle-arranging mechanism aligned the steel needles to be ground and transported them to the clamping mechanism during the grinding process. This needle-arranging mechanism ensured the needles were in the same position, which is crucial for the needle grinding machine to achieve this.
[0003] As attached Figure 4 As shown, the existing needle-laying device includes a machine base 1, a fixed plate 2, a fixed cylinder 3, a needle-pressing mechanism 5, a needle-ejecting plate 6, and a needle-laying bar 7. The needle-laying bar 7 holds needles with a length of 4-8 cm. One end of the 4-8 cm needle faces the fixed plate 2, and the other end is aligned by the needle-ejecting plate 6. After alignment, the needle-pressing mechanism 5 applies pressure to fix the position of the needle, thus achieving a horizontal support for the needle. However, the existing technology cannot guarantee the horizontal position of non-standard 20-38 cm needles and cannot manually align them to the needle-ejecting plate, resulting in limited applicability. Utility Model Content
[0004] To facilitate the alignment of non-standard needles ranging from 20 to 38 cm, a manual alignment device suitable for a wide range of lengths is provided.
[0005] The above-mentioned objective of this application is achieved through the following technical solution:
[0006] A manual needle alignment device applicable to a wide range of lengths includes a machine base, a fixed plate, a needle pressing mechanism for pressing down and fixing needle tubes, and a needle ejector mechanism. The needle ejector mechanism includes a needle ejector plate and a needle oscillating mechanism for placing needle tubes. The needle oscillating mechanism includes a first needle release bar and a second needle release bar, which are parallel to each other. The needle ejector plate is parallel to the first needle release bar, and the second needle release bar and the needle ejector plate are located on both sides of the first needle release plate.
[0007] By adopting the above technical solution, the first and second needle-feeding strips can accommodate longer needle tubes and align them. The middle part of the long needle tube is placed on the second needle-feeding strip, one end of the long needle tube is placed on the first needle-feeding strip, and the other end is aligned by the ejector plate. This allows for the horizontal placement of existing 4-8cm long needle tubes, while also ensuring the horizontal placement of non-standard 20-38cm needle tubes and allowing for manual alignment onto the ejector plate, thus increasing applicability.
[0008] Optionally, raised limiting blocks are fixed at both ends of the upper surface of the first needle release bar and both ends of the upper surface of the second needle release bar.
[0009] By adopting the above technical solution, the limiting block plays a limiting role in the placement and laying of the needle tube. Since the first and second needle-laying strips are both smooth planes, the limiting block prevents the needle tube from slipping off the first and second needle-laying strips when the needle tube is placed and laid flat on them, thus preventing the needle tube from falling to the ground and causing difficulties in collection, and preventing safety hazards.
[0010] Optionally, the needle-swinging mechanism further includes a sliding shaft, the axis of which is perpendicular to the first needle-feeding bar, and both the first and second needle-feeding bars are slidably connected to the sliding shaft.
[0011] By adopting the above technical solution, the first needle release bar and the second needle release bar can be slidably adjusted on the sliding shaft, which can adapt to needle tubes of different sizes and increase the applicability of the needle swing mechanism.
[0012] Optionally, the number of sliding shafts may be multiple.
[0013] By adopting the above technical solution, multiple sliding shafts are installed. When the first and second needle release bars slide together on multiple sliding shafts, both sides can slide simultaneously in the horizontal direction, avoiding the first and second needle release bars from tilting and causing the needle tube to fall off, and reducing the hidden danger of the first and second needle release bars not being parallel to the ejector plate.
[0014] Optionally, the oscillating needle mechanism further includes a support frame, one end of which is fixedly connected to the machine base, and the other end of which has a sliding hole, and the sliding shaft is slidably connected in the sliding hole along its own axial direction.
[0015] By adopting the above technical solution, the sliding adjustment range of the first and second needle release bars on the sliding shaft is limited. The sliding shaft can be slidably adjusted within the sliding hole of the support frame, which increases the adjustment range of the first and second needle release bars, enabling them to accommodate longer needle tubes and enhancing applicability.
[0016] Optionally, the support frame has a connecting seam and a positioning hole on the end away from the machine platform, and the connecting seam is connected to the sliding hole, and the positioning hole is connected to the connecting seam. A fastening bolt is installed on the support frame, and one end of the fastening bolt is inserted into the support frame, passes through the connecting seam, and is threadedly connected to the support frame.
[0017] By adopting the above technical solution, on the one hand, the sliding shaft can be fixed by fastening bolts to prevent it from sliding out of the sliding hole and affecting the stability of the first and second needle release bars; on the other hand, fastening bolts are provided on only one side, and the connection between the sliding shaft and the sliding hole can be loosened without disassembling the entire support frame, which facilitates the disassembly and assembly of the sliding shaft and increases convenience.
[0018] Optionally, the first needle bar has a first through hole, the second needle bar has a second through hole, one end of the sliding shaft is fixed with a snap-fit block larger than the first through hole, and the other end of the sliding shaft passes through the first through hole and the second through hole in sequence and is slidably connected to the hole wall along the axial direction.
[0019] By adopting the above technical solution, the first needle-releasing plate is located between the two support frames. On the one hand, the two support frames block the sliding of the first needle-releasing strip, preventing the first needle-releasing plate from slipping off when it slides. On the other hand, the second needle-releasing strip is located on the side of the locking block facing the fixed plate, preventing the second needle-releasing strip from slipping off the sliding shaft, thus enhancing its applicability.
[0020] Optionally, the needle pressing mechanism includes a needle pressing strip, a support plate, and a needle pressing cylinder. The needle pressing cylinder is fixedly connected to the side of the support plate facing away from the fixed plate, and the piston rod of the needle pressing cylinder is fixedly connected to the needle pressing strip.
[0021] By adopting the above technical solution, the pressure bar applies pressure to the second needle release bar, which can make the needle tubes on both sides of the second needle release bar more evenly stressed, preventing uneven stress on both sides and positional deviation of the needle tubes on the second needle release bar, which would affect the grinding effect of the subsequent needle grinding machine.
[0022] Optionally, a fixed cylinder is also included, wherein the piston rod of the fixed cylinder extends horizontally and is fixedly connected to the support plate on the side opposite to the needle cylinder.
[0023] By adopting the above technical solution, the support plate is adjusted by the fixed cylinder. When it is necessary to place the needle on the first needle bar or the second needle bar, the fixed cylinder drives the piston rod to retract the support plate, providing a larger operating space for placing the needle. This prevents the operator from colliding with the needle bar when placing the needle, improves the efficiency of placing the needle, and reduces the safety hazards caused by the collision between the operator and the needle bar.
[0024] In summary, this application has at least the following beneficial effects:
[0025] 1. It enables the horizontal placement of existing 4-8cm long needle tubes, while also ensuring the horizontal placement of non-standard 20-38cm needle tubes, and allows for manual alignment with the ejector plate, thus increasing applicability.
[0026] 2. The first and second needle-feeding bars are slidably connected to the sliding shaft, and the sliding shaft is slidably connected to the sliding hole of the support frame. This increases the sliding range of the sliding shaft, the first and second needle-feeding bars, and can accommodate longer needle tubes, thus enhancing applicability. Attached image description:
[0027] Figure 1 A schematic diagram of a manual alignment device suitable for a wide range of lengths;
[0028] Figure 2 This is a partial structural diagram of a manual alignment device;
[0029] Figure 3 In order to be in Figure 2 A partial exploded view above;
[0030] Figure 4 This refers to the existing needle alignment device.
[0031] Reference numerals: 1. Machine base; 2. Fixing plate; 21. Mounting part; 22. Connecting part; 3. Fixing cylinder; 4. Needle-swinging mechanism; 41. First needle-feeding bar; 411. First through hole; 42. Second needle-feeding bar; 421. Second through hole; 43. Sliding shaft; 431. Snap-fit block; 432. Round block; 44. Limiting block; 45. Support frame; 451. Protruding end; 452. Connecting end; 453. Sliding hole; 454. Joint; 455. Positioning hole; 5. Ejector needle mechanism; 51. Ejector needle plate; 6. Pressing needle mechanism; 61. Support plate; 62. Pressing needle bar; 63. Pressing needle cylinder; 7. Needle-feeding component. Detailed implementation method:
[0032] The following section provides a more detailed description, in conjunction with the accompanying diagrams:
[0033] As attached Figure 1 As shown, a manual needle alignment device applicable to a wide range of lengths includes a machine base 1, a fixed plate 2, a fixed cylinder 3, a needle-swinging mechanism 4 for placing needle tubes, a needle-lifting mechanism 5, and a needle-pressing mechanism 6 for pressing down and fixing the needle tubes.
[0034] As attached Figure 1 and attached Figure 2 As shown, the fixed plate 2 is L-shaped and includes a mounting part 21 and a connecting part 22. The connecting part 22 is fixedly connected to the upper surface of the machine base 1, and the mounting part 21 is fixedly connected to the connecting part 22.
[0035] The oscillating needle mechanism 4 includes a support frame 45 and a sliding shaft 43.
[0036] As attached Figure 2 and attached Figure 3As shown, there are four support frames 45 here. Each group consists of two parallel support frames 45. The distribution direction of each group of support frames 45 is perpendicular to the mounting portion 21 of the fixing plate 2, and the two groups of support frames 45 are parallel. The support frame 45 is convex in shape, with a protruding end 451 at the top and a connecting end 452 at the bottom. The connecting end 452 is fixedly connected to the machine base 1 by bolts. A sliding hole 453 is also provided on the protruding end 451, and the axis of the sliding hole 453 is perpendicular to the fixing plate 2.
[0037] There are two sliding shafts 43, each installed in the same set of support frames 45. The sliding shaft 43 is cylindrical and passes through two sliding holes 453 in the same set of support frames 45, and the sliding shaft 43 is slidably connected to the hole wall of the sliding hole 453.
[0038] A locking block 431 is fixed to the end of the sliding shaft 43 away from the fixed plate 2. The size of the locking block 431 is larger than the radial interface size of the sliding shaft 43. The locking block 431 is a circular block 432 with a diameter larger than that of the sliding shaft 43. When the sliding shaft 43 slides toward the fixed plate 2, the locking block 431 moves closer to the sliding hole 453 until the locking block 431 abuts against the wall surface of the protruding end 451. This limits the sliding distance of the sliding shaft 43 toward the fixed plate 2 and prevents the sliding shaft 43 from sliding out of the sliding hole 453.
[0039] As attached Figure 1 and attached Figure 2 As shown, the needle-swinging mechanism 4 also includes a first needle-releasing bar 41, a second needle-releasing bar 42, and a limiting block 44.
[0040] As attached Figure 2 and attached Figure 3 As shown, both sides of the first needle release bar 41 are located between the same group of support frames 45, and the second needle release bar 42 is located at one end of the sliding shaft 43 near the snap-fit block 431, and is located on the side of the snap-fit block 431 facing the fixed plate 2. The first needle release bar 41 and the second needle release bar 42 are parallel.
[0041] The first needle-laying bar 41 has a first through hole 411 that is horizontal and perpendicular to the support frame 45, and the second needle-laying bar 42 has a second through hole 421 that is horizontal and perpendicular to the support frame 45. The first through hole 411 is located on both sides of the first needle-laying bar 41, and the second through hole 421 is located on both sides of the second needle-laying bar 42. The sliding hole 453, the first through hole 411, and the second through hole 421 are aligned.
[0042] When the sliding shaft 43 slides toward the fixed plate 2, the snap-fit block 431 moves toward the sliding hole 453. The round block passes through and connects with the second through hole 421, the sliding hole 453, the first through hole 411, and the sliding hole 453 in sequence. The axial direction of the sliding shaft 43 is perpendicular to the first needle release bar 41, and both the first needle release bar 41 and the second needle release bar 42 are slidably connected to the sliding shaft 43.
[0043] The support frame 45 of the same group blocks the sliding direction of the first needle bar 41 to prevent the risk of slippage when the first needle bar 41 is sliding. At the same time, the locking block 431 at one end of the sliding shaft 43 and the support frame 45 block the sliding direction of the second needle bar 42 to prevent the second needle bar 42 from slipping off the sliding shaft 43.
[0044] Both the upper end face of the first needle-releasing strip 41 and the upper end face of the second needle-releasing strip 42 are fixed with raised limiting blocks 44. There are four limiting blocks 44 here, which are respectively fixedly connected to both ends of the first needle-releasing strip 41 and both ends of the second needle-releasing strip 42. When the needle tube is placed and laid flat on the first needle-releasing strip 41 and the second needle-releasing strip 42, the limiting blocks 44 prevent the needle tube from slipping off the first needle-releasing strip 41 and the second needle-releasing strip 42.
[0045] The protruding end 451 of the support frame 45 is also provided with a connecting seam 454 and a positioning hole 455. The width of the connecting seam 454 is 0.1~1mm. The connecting seam 454 is located on the opposite side of the two support frames 45. The connecting seam 454 is connected to the sliding hole 453 and the positioning hole 455. A fastening bolt is installed on the support frame 45. One end of the fastening bolt is inserted into the support frame 45 and passes through the connecting seam 454 before being threaded to the support frame 45.
[0046] When it is necessary to adjust the sliding shaft 43 to slide within the sliding hole 453, simply loosen the fastening bolts to slide the sliding shaft 43 at the insertion end 462 toward the direction away from the fixed plate 2, making adjustment more convenient. At the same time, without disassembling the support frame 45 as a whole, the first needle release bar 41, the second needle release bar 42, and the sliding shaft 43 can be disassembled, which facilitates the replacement and maintenance of the first needle release bar 41, the second needle release bar 42, and the sliding shaft 43 after long-term use.
[0047] As attached Figure 1 and attached Figure 2 As shown, the ejector mechanism 5 includes an ejector plate 51. The ejector plate 51 is parallel to the first needle-releasing bar 41 and the second needle-releasing bar 42. The upper surface of the second needle-releasing bar 42 is higher than the lower edge of the ejector plate 51, and the upper surface of the second needle-releasing bar 42 is lower than the upper edge of the ejector plate 51.
[0048] When the operator places and lays the needle tubes on the first needle release bar 41 and the second needle release bar 42, the sliding ejector plate 51 moves horizontally toward the second needle release bar 42. The needle tip of the needle tube abuts against the side of the ejector plate 51 toward the fixed plate 2. The pushing force of the ejector plate 51 aligns the needle tips of the needle tubes on the second needle release bar 42.
[0049] As attached Figure 1 and attached Figure 2As shown, the needle pressing mechanism 6 includes a support plate 61, a needle pressing cylinder 63, and a needle pressing bar 62.
[0050] A fixing cylinder 3 is installed on the mounting part 21 of the fixing plate 2 on the side facing away from the machine base 1. The piston rod of the fixing cylinder 3 is fixedly connected to the side of the support plate 61 facing the fixing plate 2. A needle pressing cylinder 63 is also installed on the side of the support plate 61 facing away from the fixing plate 2. The needle pressing cylinder 63 is located in the middle of the support plate 61, and the piston rod of the needle pressing cylinder 63 is fixedly connected to the needle pressing strip 62.
[0051] The needle pressing strip 62 is elongated and parallel to the second needle releasing strip 42, located directly above its upper surface. The length of the needle pressing strip 62 is equal to the distance between the two limiting blocks 44 on the second needle releasing strip 42. The needle pressing strip 62 applies pressure from the needle pressing cylinder 63 towards the center of the second needle releasing strip 42, resulting in more even force distribution on the needle tubes on both sides of the second needle releasing strip 42 and greater stability of the needle tubes on the second needle releasing strip 42.
[0052] The effect of this embodiment:
[0053] The first needle-laying bar 41 and the second needle-laying bar 42 are arranged parallel to each other. For longer needle tubes, the middle part of the needle tube is placed on the second needle-laying bar 42, with one end of the needle tube resting on the first needle-laying bar 41 facing the fixing plate 2, and the other end facing the ejector plate 51. The first needle-laying bar 41 and the second needle-laying bar 42 can provide space for longer needle tubes, making them more suitable for non-standard needle tubes of 20-38cm. At the same time, the first needle-laying bar 41 and the second needle-laying bar 42 are slidably connected to the sliding shaft 43, which is slidably connected to the sliding hole 453 along its own axis. This facilitates the movement of the positions of the first needle-laying bar 41 and the second needle-laying bar 42, increases the adjustable range of the first needle-laying bar 41 and the second needle-laying bar 42, and changes the distance between the first needle-laying bar 41 and the second needle-laying bar 42, making it suitable for more sizes of needle tubes and improving applicability.
[0054] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of protection claimed in this application.
Claims
1. A manual pin aligning device suitable for a large length range, comprising a machine table (1), a fixed plate (2), a pin pressing mechanism (6) for pressing a fixed pin tube, and a pin lifting mechanism (5), wherein the pin lifting mechanism (5) comprises a pin lifting plate (51), characterized in that, The needle placing mechanism (4) for needle tube placement includes a first needle placing strip (41) and a second needle placing strip (42), the first needle placing strip (41) is parallel to the second needle placing strip (42), the needle plate (51) is parallel to the first needle placing strip (41), and the second needle placing strip (42) and the needle plate (51) are respectively located on both sides of the first needle placing strip (41).
2. The manual pin alignment device for large length range according to claim 1, wherein, The upper surface of the first needle placing strip (41) and the upper surface of the second needle placing strip (42) are fixed with raised limiting blocks (44) at both ends.
3. The manual pin alignment device for large length range according to claim 1, wherein, The needle placing mechanism (4) further includes a sliding shaft (43), the axial direction of the sliding shaft (43) is perpendicular to the first needle placing strip (41), and the first needle placing strip (41) and the second needle placing strip (42) are both in sliding connection with the sliding shaft (43).
4. The manual pin alignment device for large length range according to claim 3, wherein, The number of the sliding shaft (43) is multiple.
5. The manual pin alignment device for large length range according to claim 3, wherein, The needle placing mechanism (4) further includes a support frame (45), one end of the support frame (45) is fixedly connected with the machine table (1), the other end of the support frame (45) is provided with a sliding hole (453), and the sliding shaft (43) is in sliding connection with the sliding hole (453) along the axial direction of the sliding shaft (43).
6. The manual pin alignment device for use with a large length range as claimed in claim 5, wherein, The end of the support frame (45) away from the machine table (1) is provided with a connecting slot (454) and a positioning hole (455), the connecting slot (454) penetrates through the sliding hole (453), the positioning hole (455) penetrates through the connecting slot (454), a fastening bolt is installed on the support frame (45), one end of the fastening bolt is inserted into the support frame (45) and penetrates through the connecting slot (454), and the fastening bolt is in threaded connection with the support frame (45).
7. The manual pin alignment device for use with a large length range as claimed in claim 6, wherein, The first needle placing strip (41) is provided with a first through hole (411), the second needle placing strip (42) is provided with a second through hole (421), one end of the sliding shaft (43) is fixedly connected with a clamping block (431) with a size larger than the first through hole, and the other end of the sliding shaft (43) penetrates through the first through hole (411) and the second through hole (421) in sequence and is in axial sliding connection with the hole walls.
8. The manual pin alignment device for large length range according to claim 1, wherein, The needle pressing mechanism (6) includes a needle pressing strip (62), a support plate (61) and a needle pressing cylinder (63), the needle pressing cylinder (63) is fixedly connected with the support plate (61) on the side away from the fixed plate (2), and the piston rod of the needle pressing cylinder (63) is fixedly connected with the needle pressing strip (62).
9. The manual pin alignment device for use with a large length range as claimed in claim 8, wherein, The fixed cylinder (3) is further included, the piston rod of the fixed cylinder (3) extends horizontally and is fixedly connected with the support plate (61) on the side away from the needle pressing cylinder (63).