Improved sharpener

CN224776921UActive Publication Date: 2026-09-22THE FIRST AFFILIATED HOSPITAL OF ZHENGZHOU UNIV
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Patent Information

Application Number
CN202521043768.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-24
Publication Date
2026-09-22
Estimated Expiration
2035-05-24

AI Technical Summary

Technical Problem

[0003]现有技术中没有相应的提示利器盒容量即满的措施,临床医护人员工作繁忙时无法及时发现进行处置,造成利器盒过满,导致针刺伤,而处置废弃输液器前端针头时,需要另配剪刀将输液器前端针头剪掉,剪刀长时间药物腐蚀生锈,不好清洁,另在剪的过程中极易发生针刺伤,且目前所使用的利器盒无法放置于治疗车台面两侧,只能放置于治疗车底部,护士多次弯腰处置,十分不方便

Benefits of technology

[0013](1)本实用新型中将利器盒放置在定位座上,并将光电传感器对准薄塑料片卡在利器盒的后壁中,光电传感器通过透过薄塑料片发射和接收光信号,检测物料对光的反射或遮挡,从而确定利器盒中物料高度,其中薄塑料片采用如聚碳酸酯(PC)和聚甲基丙烯酸甲酯(PMMA)等能够允许足够光线通过的材质,光电传感器将光信号转化为电信号并传输至微处理器,当利器盒中物料达到与薄塑料片同等高度即利器盒内三分之二的高度时,微处理器控制报警器发出声响,提醒工作人员该利器盒需要更换,同时该利器盒使用过程中,工作人员将输液器前端插入通孔中,并通过安装轴转动,配合齿环和第一齿轮带动多组安装轴以及刀片同步转动,多组刀片同步合拢即可完成对于输液器针头的自动剪切。

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Abstract

The utility model discloses an improved sharp tool box, including sharp tool box, installation rod and locating seat, be equipped with microprocessor on the locating seat, be equipped with alarm on the locating seat, be equipped with photoelectric sensor on the locating seat, the upper portion of sharp tool box is equipped with through -hole, be equipped with the mounting ring in the through -hole, the mounting ring passes through bearing and sharp tool box rotation connection, be equipped with multiple groups annular distribution's blade in the through -hole, multiple groups the blade all are through the installation shaft and sharp tool box rotation connection, multiple groups the installation shaft all have the first gear sleeve joint, and photoelectric sensor emits and receives optical signal through the thin plastic sheet, and the reflection or obstruction of light of detecting material to material height in sharp tool box is determined in sharp tool box, and photoelectric sensor converts optical signal into electric signal and transmits to microprocessor, when the material in sharp tool box reaches the same height with the thin plastic sheet, namely the height of two -thirds in sharp tool box, and microprocessor controls the alarm to send the sound.
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Description

Technical Field

[0001] This utility model relates to the field of sharps box technology, specifically an improved sharps box. Background Technology

[0002] A sharps container is a medical storage box used to collect sharp instruments such as syringes, small glassware, blades, and suture needles. Sharps containers are for single use only and are required to be collected by a medical waste disposal unit within 24 hours and completely and safely incinerated within 48 hours. According to medical regulations, sharps containers should be disposed of promptly when they are 2 / 3 to 3 / 4 full.

[0003] There is no corresponding measure in the current technology to indicate when the sharps container is full. When clinical medical staff are busy, they cannot detect and deal with it in time, resulting in the sharps container being too full and causing needlestick injuries. When disposing of the needle tip of the infusion set, a separate pair of scissors is required to cut off the needle tip. The scissors are corroded and rusted by drugs over time, are difficult to clean, and are very easy to cause needlestick injuries during the cutting process. In addition, the sharps container currently used cannot be placed on the sides of the treatment cart, but can only be placed at the bottom of the treatment cart, which is very inconvenient for nurses to bend over multiple times. Utility Model Content

[0004] The purpose of this invention is to provide an improved weapon box to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an improved sharps box, comprising a sharps box, a mounting rod, and a positioning seat. The positioning seat is equipped with a microprocessor, an alarm, and a photoelectric sensor. A thin plastic sheet is embedded in the rear of the sharps box, and the photoelectric sensor is correspondingly positioned to the thin plastic sheet. A flip cover is rotatably mounted on the sharps box. A through hole is formed at the top of the sharps box, and a mounting ring is disposed within the through hole. The mounting ring is rotatably connected to the sharps box via a bearing. Multiple sets of annularly distributed blades are disposed within the through hole. Each set of blades is rotatably connected to the sharps box via a mounting shaft. A first gear is sleeved on each set of mounting shafts, and each set of first gears meshes with a gear ring. A first adjusting rod is slidably mounted within the mounting rod, and a second adjusting rod is slidably mounted within the first adjusting rod. The end of the second adjusting rod furthest from the mounting rod is fixedly connected to the positioning seat. The positioning seat is equipped with four symmetrically distributed limiting blocks, each set located at one of the four corners of the sharps box.

[0006] As a further preferred embodiment of this technical solution, two sets of symmetrically distributed first torsion springs are sleeved on both sides of the flip cover. The two ends of the two sets of first torsion springs are respectively fixedly connected to the flip cover and the sharps box. Two sets of symmetrically distributed ratchet wheels are sleeved on the mounting shaft on the right side. The sharps box is provided with two sets of symmetrically distributed pawls. The two sets of pawls are respectively engaged with the corresponding ratchet wheels. The two sets of pawls are rotatably connected to the sharps box through rotating rods. The lower ends of the two sets of rotating rods are sleeved with second gears. The sharps box is provided with two sets of racks corresponding to the rotating rods. The two sets of racks are fixedly connected to each other through a connecting frame. A positioning block is fixedly installed on the connecting frame.

[0007] As a further preferred embodiment of this technical solution, a second torsion spring is sleeved on each of the two sets of rotating rods. The two ends of the second torsion spring are fixedly connected to the pawl and the sharps box, respectively. The two sets of racks are respectively meshed with the corresponding second gears. The two sets of racks and the connecting frame are slidably connected to the sharps box.

[0008] As a further preferred embodiment of this technical solution, the sharps box is provided with positioning rods distributed corresponding to the positioning blocks. Two sets of symmetrically distributed positioning frames are rotatably mounted on the positioning rods. The two sets of positioning frames are movably engaged with the positioning rods. A third torsion spring is sleeved on the positioning rods. The two ends of the third torsion spring are fixedly connected to the positioning frames and the positioning rods, respectively.

[0009] As a further preferred embodiment of this technical solution, a screw is rotatably installed inside the mounting rod, and a screw tube is rotatably installed inside the first adjusting rod. The screw passes through the first adjusting rod and is threadedly connected to the first adjusting rod. The screw passes through the second adjusting rod and is threadedly connected to the second adjusting rod. Two sets of symmetrically distributed slots are provided on the screw, and two sets of symmetrically distributed blocks are provided inside the screw tube. The blocks are correspondingly arranged with the slots, and the screw tube is slidably sleeved with the screw through the blocks.

[0010] As a further preferred embodiment of this technical solution, two sets of symmetrically distributed first slide rods are slidably installed inside the positioning seat, and two sets of symmetrically distributed second slide rods are slidably installed inside the positioning seat. The two sets of first slide rods and the two sets of second slide rods are perpendicular to each other, and the four sets of limiting blocks are slidably connected to one set of first slide rods and one set of second slide rods, respectively.

[0011] As a further preferred embodiment of this technical solution, two sets of symmetrically distributed cylinders are provided between the two sets of first slide rods and between the two sets of second slide rods, and a solenoid valve is provided between the two sets of cylinders. The solenoid valve is fixedly connected to the inlet and outlet ports of the two sets of cylinders through connecting pipes.

[0012] This utility model provides an improved sharps box, which has the following beneficial effects:

[0013] (1) In this utility model, the sharps box is placed on the positioning seat, and the photoelectric sensor is aligned with the thin plastic sheet and clipped into the back wall of the sharps box. The photoelectric sensor emits and receives light signals through the thin plastic sheet, detects the reflection or blockage of light by the material, and thus determines the height of the material in the sharps box. The thin plastic sheet is made of materials such as polycarbonate (PC) and polymethyl methacrylate (PMMA) that allow sufficient light to pass through. The photoelectric sensor converts the light signal into an electrical signal and transmits it to the microprocessor. When the material in the sharps box reaches the same height as the thin plastic sheet, that is, two-thirds of the height inside the sharps box, the microprocessor controls the alarm to sound, reminding the staff that the sharps box needs to be replaced. At the same time, during the use of the sharps box, the staff inserts the front end of the infusion set into the through hole and rotates the mounting shaft. The gear ring and the first gear drive multiple sets of mounting shafts and blades to rotate synchronously. The multiple sets of blades close synchronously to complete the automatic cutting of the infusion set needle.

[0014] (2) This utility model completes the installation and fixation of the sharps box by using the positioning seat and the limiting block, and completes the adjustment of the height of the positioning seat by using the installation rod, the first adjustment rod and the second adjustment rod, so as to realize the adjustment of the height of the sharps box, which makes it convenient for staff to use according to actual needs and avoids the inconvenience caused by the low placement position. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the separation of the sharps container and the blade in this utility model.

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A;

[0018] Figure 4 This is a schematic diagram of the sharps box of this utility model;

[0019] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point -B;

[0020] Figure 6 This is a schematic diagram showing the separation of the positioning seat and the limiting block of this utility model;

[0021] In the diagram: 1. Sharps box; 2. Flip cover; 3. Thin plastic sheet; 4. First torsion spring; 5. Through hole; 6. Mounting ring; 7. Gear ring; 8. Blade; 9. Mounting shaft; 10. First gear; 11. Ratchet; 12. Pawl; 13. Rotating rod; 14. Second torsion spring; 15. Second gear; 16. Rack; 17. Connecting frame; 18. Positioning block; 19. Positioning rod; 20. Positioning frame; 21. Third torsion spring; 22. Microprocessor; 23. Alarm; 24. Photoelectric sensor; 25. Mounting rod; 26. First adjusting rod; 27. Second adjusting rod; 28. Screw; 29. ​​Slot; 30. Screw tube; 31. Locking block; 32. Positioning seat; 33. Limiting block; 34. First sliding rod; 35. Second sliding rod; 36. Cylinder; 37. Solenoid valve. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] This utility model provides a technical solution: such as Figures 1-5As shown, in this embodiment, an improved sharps box includes a sharps box 1, a mounting rod 25, and a positioning seat 32. The positioning seat 32 is equipped with a microprocessor 22, an alarm 23, and a photoelectric sensor 24. A thin plastic sheet 3 is embedded in the rear of the sharps box 1, and the photoelectric sensor 24 is correspondingly positioned to the thin plastic sheet 3. A flip cover 2 is rotatably mounted on the sharps box 1. A through hole 5 is opened at the top of the sharps box 1, and a mounting ring 6 is provided inside the through hole 5. The mounting ring 6 is rotatably connected to the sharps box 1 via a bearing. Multiple sets of annularly distributed blades 8 are provided inside the through hole 5. All sets of blades 8 are rotatably connected to the sharps box 1 via mounting shafts 9. First gears 10 are sleeved on each of the multiple sets of mounting shafts 9, and the multiple sets of first gears 10 are meshed with gear rings 7. The mounting rod 2... A first adjusting rod 26 is slidably installed inside the mounting rod 25, and a second adjusting rod 27 is slidably installed inside the first adjusting rod 26. The end of the second adjusting rod 27 away from the mounting rod 25 is fixedly connected to the positioning seat 32. The positioning seat 32 is provided with four sets of symmetrically distributed limiting blocks 33, which are located at the four corners of the sharps box 1. The sharps box 1 is placed on the positioning seat 32, and the photoelectric sensor 24 is aligned with the thin plastic sheet 3 and clipped into the rear wall of the sharps box 1. The photoelectric sensor 24 emits and receives light signals through the thin plastic sheet 3, detects the reflection or obstruction of light by the material, and thus determines the height of the material in the sharps box 1. The thin plastic sheet 3 is made of a material such as polycarbonate PC and polymethyl methacrylate PMMA that allows sufficient light to pass through. 4. The light signal is converted into an electrical signal and transmitted to the microprocessor 22. When the material in the sharps box 1 reaches the same height as the thin plastic sheet 3, that is, two-thirds of the height inside the sharps box 1, the microprocessor 22 controls the alarm 23 to sound, reminding the staff that the sharps box 1 needs to be replaced. At the same time, during the use of the sharps box 1, the staff inserts the front end of the infusion set into the through hole 5 and rotates it through the mounting shaft 9. This, in conjunction with the gear ring 7 and the first gear 10, drives multiple sets of mounting shafts 9 and blades 8 to rotate synchronously. The multiple sets of blades 8 close synchronously to complete the automatic cutting of the infusion set needle. Two sets of symmetrically distributed first torsion springs 4 are sleeved on both sides of the flip cover 2. The two ends of the two sets of first torsion springs 4 are respectively fixedly connected to the flip cover 2 and the sharps box 1. A mounting shaft 9 on the right side is sleeved with Two sets of symmetrically distributed ratchet wheels 11 are provided. Two sets of symmetrically distributed pawls 12 are provided inside the sharps container 1. The two sets of pawls 12 are respectively engaged with the corresponding ratchet wheels 11. Both sets of pawls 12 are rotatably connected to the sharps container 1 via rotating rods 13. A second gear 15 is sleeved on the lower end of each of the two rotating rods 13. Two sets of racks 16 are provided inside the sharps container 1, corresponding to the rotating rods 13. The two sets of racks 16 are fixedly connected by a connecting frame 17. A positioning block 18 is fixedly installed on the connecting frame 17. A second torsion spring 14 is sleeved on each of the two rotating rods 13. The two ends of the second torsion spring 14 are respectively fixedly connected to the pawls 12 and the sharps container 1. The two sets of racks 16 are respectively engaged with the corresponding second gears 15. The two sets of racks 16 and the connecting frame 17 are slidably connected to the sharps container 1.The sharps box 1 contains positioning rods 19 corresponding to positioning blocks 18. Two sets of symmetrically distributed positioning frames 20 are rotatably mounted on the positioning rods 19. The two sets of positioning frames 20 are movably engaged with the positioning rods 19. A third torsion spring 21 is sleeved on the positioning rods 19. The two ends of the third torsion spring 21 are fixedly connected to the positioning frames 20 and the positioning rods 19, respectively. Normally, the mounting shaft 9 cannot rotate when the pawl 12 and ratchet 11 are engaged. When it is necessary to rotate the mounting shaft 9, the connecting frame 17 pulls the two sets of racks 16, and during the movement of the racks 16, they cooperate with the two sets of second gears 15 to make the rotating rod 13 move. The corresponding pawl 12 deviates from its restriction on the ratchet 11. Under the action of the positioning block 18 and the positioning frame 20, the positions of the connecting frame 17 and the rack 16 are fixed, thereby realizing the rotation of the mounting shaft 9 and the closing of the multiple sets of blades 8, completing the shearing of the infusion tube needle. After shearing, the connecting frame 17 is pulled in the opposite direction, causing the positioning frame 20 to release its position restriction on the positioning block 18. Under the action of the second torsion spring 14, the rotating rod 13 drives the pawl 12 to return to its original position, continuing to limit the pawl 12. The mounting shaft 9 cannot rotate freely, and the multiple sets of blades 8 remain in a closed state, sealing the sharps box 1.

[0024] like Figure 6 As shown, a screw 28 is rotatably installed inside the mounting rod 25, and a screw tube 30 is rotatably installed inside the first adjusting rod 26. The screw 28 passes through the first adjusting rod 26 and is threadedly connected to it. The screw tube 30 passes through the second adjusting rod 27 and is threadedly connected to it. Two sets of symmetrically distributed slots 29 are provided on the screw 28, and two sets of symmetrically distributed locking blocks 31 are provided inside the screw tube 30. The locking blocks 31 are correspondingly set with the slots 29, and the screw tube 30 is slidably sleeved with the screw 28 through the locking blocks 31. Two sets of symmetrically distributed first sliding rods 34 are slidably installed inside the positioning seat 32, and two sets of symmetrically distributed second sliding rods 35 are slidably installed inside the positioning seat 32. The two sets of first sliding rods 34 and the two sets of second sliding rods 35 are perpendicularly distributed. Four sets of limiting blocks 33 are slidably connected to one set of first sliding rods 34 and one set of second sliding rods 35, respectively. The two sets of first sliding rods 34 are perpendicular to each other. Two sets of symmetrically distributed cylinders 36 are provided between the second slide rods 35. A solenoid valve 37 is provided between the two sets of cylinders 36. The solenoid valve 37 is fixedly connected to the inlet and outlet ports of the two sets of cylinders 36 through connecting pipes. Through the cooperation of the solenoid valve 37 and the cylinders 36, the two sets of first slide rods 34 or second slide rods 35 slide inward or outward synchronously, thereby realizing the adjustment of the distance between the four sets of limit blocks 33, and realizing the quick fixing or disassembly of the sharps box 1. During use, the motor in the mounting rod 25 is activated according to the actual required usage height to drive the screw 28 to rotate. Under the limiting action of the locking block 31 and the locking groove 29, the screw tube 30 rotates synchronously with the screw 28. Therefore, under the limiting action of the mounting rod 25, the first adjusting rod 26 slides, and under the limiting action of the first adjusting rod 26, the second adjusting rod 27 slides, thereby adjusting the height of the positioning seat 32.

[0025] This utility model provides an improved sharps box, the specific working principle of which is as follows: The sharps box 1 is placed on the positioning seat 32, and the photoelectric sensor 24 is aligned with the thin plastic sheet 3 and clipped into the rear wall of the sharps box 1. The photoelectric sensor 24 emits and receives light signals through the thin plastic sheet 3, detects the reflection or obstruction of light by the material, and thus determines the height of the material in the sharps box 1. The thin plastic sheet 3 is made of a material that allows sufficient light to pass through, such as polycarbonate PC or polymethyl methacrylate PMMA. The photoelectric sensor 24 converts the light signal into an electrical signal and transmits it to the microprocessor 22. When the material in the sharps box 1 reaches the same height as the thin plastic sheet 3, the sharps box is ready for use. When the sharps box 1 is two-thirds full, the microprocessor 22 controls the alarm 23 to sound, reminding the staff that the sharps box 1 needs to be replaced. During use, the staff inserts the infusion set tip into the through hole 5 and rotates the mounting shaft 9. This, in conjunction with the gear ring 7 and the first gear 10, drives multiple sets of mounting shafts 9 and blades 8 to rotate synchronously. The multiple sets of blades 8 then close synchronously to automatically cut the infusion set needle. Normally, the mounting shaft 9 cannot rotate when the pawl 12 and ratchet 11 are engaged. When rotation of the mounting shaft 9 is required, the connecting bracket 17 pulls two sets of racks 16, and during the movement of the racks 16... Two sets of second gears 15 cause the rotating rod 13 to drive the corresponding pawl 12 to deviate from the restriction on the ratchet 11. Under the action of the positioning block 18 and the positioning frame 20, the positions of the connecting frame 17 and the rack 16 are fixed, thereby realizing the rotation of the mounting shaft 9 and the closing of multiple sets of blades 8, completing the shearing of the infusion tube needle. After shearing, the connecting frame 17 is pulled in the opposite direction, causing the positioning frame 20 to release the position restriction on the positioning block 18. Under the action of the second torsion spring 14, the rotating rod 13 drives the pawl 12 to return to its original position, continuing to limit the pawl 12. The mounting shaft 9 cannot rotate freely, and the multiple sets of blades 8 remain in a closed state, sealing the sharps box 1. When closed, the two sets of first slide rods 34 or second slide rods 35 slide synchronously inward or outward through the cooperation of solenoid valve 37 and cylinder 36, thereby adjusting the distance between the four sets of limit blocks 33 and realizing the quick fixing or disassembly of the sharps box 1. During use, the motor in the mounting rod 25 is activated to drive the screw 28 to rotate according to the actual required usage height. Under the limiting action of the locking block 31 and the locking groove 29, the screw tube 30 rotates synchronously with the screw 28. Therefore, under the limiting action of the mounting rod 25, the first adjusting rod 26 slides, and under the limiting action of the first adjusting rod 26, the second adjusting rod 27 slides, thereby adjusting the height of the positioning seat 32.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An improved sharps holder, comprising a sharps holder (1), a mounting rod (25), and a positioning base (32), characterized in that: The positioning base (32) is equipped with a microprocessor (22), an alarm (23), and a photoelectric sensor (24). A thin plastic sheet (3) is embedded in the rear side of the sharps box (1). The photoelectric sensor (24) is correspondingly arranged with the thin plastic sheet (3). A flip cover (2) is rotatably installed on the sharps box (1). A through hole (5) is opened on the top of the sharps box (1). An installation ring (6) is provided in the through hole (5). The installation ring (6) is rotatably connected to the sharps box (1) through a bearing. Multiple sets of ring-shaped blades (8) are provided in the through hole (5). Each piece (8) is rotatably connected to the sharps box (1) via a mounting shaft (9). Each of the mounting shafts (9) is fitted with a first gear (10), and each of the first gears (10) meshes with a gear ring (7). A first adjusting rod (26) is slidably installed inside the mounting rod (25), and a second adjusting rod (27) is slidably installed inside the first adjusting rod (26). The end of the second adjusting rod (27) away from the mounting rod (25) is fixedly connected to the positioning seat (32). The positioning seat (32) is provided with four sets of symmetrically distributed limiting blocks (33), and the four sets of limiting blocks (33) are located at the four corners of the sharps box (1).

2. The improved sharps box according to claim 1, characterized in that: Two sets of symmetrically distributed first torsion springs (4) are sleeved on both sides of the flip cover (2). The two ends of the two sets of first torsion springs (4) are respectively fixedly connected to the flip cover (2) and the sharps box (1). Two sets of symmetrically distributed ratchet wheels (11) are sleeved on the mounting shaft (9) on the right side. Two sets of symmetrically distributed pawls (12) are provided in the sharps box (1). The two sets of pawls (12) are respectively engaged with the corresponding ratchet wheels (11). The two sets of pawls (12) are rotatably connected to the sharps box (1) through the rotating rod (13). The lower end of the two sets of rotating rods (13) is sleeved with a second gear (15). The sharps box (1) is provided with two sets of racks (16) corresponding to the rotating rods (13). The two sets of racks (16) are fixedly connected to each other through the connecting frame (17). The connecting frame (17) is fixedly installed with a positioning block (18).

3. The improved sharps box according to claim 2, characterized in that: Both sets of rotating rods (13) are fitted with second torsion springs (14), and the two ends of the second torsion springs (14) are fixedly connected to the pawl (12) and the sharps box (1) respectively. Both sets of racks (16) are meshed with the corresponding second gears (15), and both sets of racks (16) and the connecting frame (17) are slidably connected to the sharps box (1).

4. The improved sharps box according to claim 1, characterized in that: The sharps box (1) is provided with positioning rods (19) corresponding to the positioning block (18). Two sets of symmetrically distributed positioning frames (20) are rotatably installed on the positioning rods (19). The two sets of positioning frames (20) are movably engaged with the positioning rods (19). A third torsion spring (21) is sleeved on the positioning rods (19). The two ends of the third torsion spring (21) are fixedly connected to the positioning frames (20) and the positioning rods (19) respectively.

5. The improved sharps box according to claim 1, characterized in that: A screw (28) is rotatably installed inside the mounting rod (25), and a screw tube (30) is rotatably installed inside the first adjusting rod (26). The screw (28) passes through the first adjusting rod (26) and is threadedly connected to the first adjusting rod (26). The screw tube (30) passes through the second adjusting rod (27) and is threadedly connected to the second adjusting rod (27). Two sets of symmetrically distributed slots (29) are provided on the screw (28), and two sets of symmetrically distributed blocks (31) are provided inside the screw tube (30). The blocks (31) are correspondingly arranged with the slots (29), and the screw tube (30) is slidably sleeved with the screw (28) through the blocks (31).

6. The improved sharps box according to claim 1, characterized in that: Two sets of symmetrically distributed first slide rods (34) are slidably installed inside the positioning seat (32), and two sets of symmetrically distributed second slide rods (35) are slidably installed inside the positioning seat (32). The two sets of first slide rods (34) and the two sets of second slide rods (35) are perpendicularly distributed. The four sets of limiting blocks (33) are slidably connected to one set of first slide rods (34) and the second slide rods (35) respectively.

7. The improved sharps box according to claim 6, characterized in that: Two sets of symmetrically distributed cylinders (36) are provided between the first slide rod (34) and the second slide rod (35). A solenoid valve (37) is provided between the two sets of cylinders (36). The solenoid valve (37) is fixedly connected to the inlet and outlet ports of the two sets of cylinders (36) through connecting pipes.