Improved medical waste classified collection device

Abstract

The utility model relates to the technical field of medical treatment, in particular to an improved medical waste classified collection device. The classified collection device comprises a collection box, a partition plate, a separation mechanism, a grinding wheel, at least one telescopic rod, a liquid partition plate, a disinfection lamp and a driving mechanism, the partition plate divides a collection cavity into a needle box and a needle cylinder box, a cover body is arranged at the top of the needle box, and the partition plate is provided with a cylinder insertion through hole allowing a needle cylinder of an injector to be inserted. The separating mechanism comprises an eccentric wheel and a rotating wheel which are oppositely arranged on the two sides of a needle head of the injector. The grinding wheel is located on the side, away from the needle cylinder, of the needle of the injector. The telescopic rod abuts against the side, close to the needle, of the flange. The driving mechanism drives the eccentric wheel, the rotating wheel and the grinding wheel to rotate; the eccentric wheel and the rotating wheel rotate oppositely; in the rotating process of the eccentric wheel, when the minimum gap Dmin between the contact cambered surface and the peripheral surface of the rotating wheel is smaller than or equal to d, and d is the diameter of the needle head of the injector.

Description

Technical Field

[0001] The utility model relates to the field of medical technology, and more specifically, to an improved medical waste classification and collection device. Background Art

[0002] Hospitals generate a large amount of medical care waste every day. For some medical waste with needles, such as disposable syringes, it is necessary to separate the needles and syringes after use so that they can be sorted and processed.

[0003] Currently, improper handling of separated needles often causes injuries, and needles containing pathogens can cause disease infection to injured people, posing a medical safety hazard. In addition, needles and syringes need to be collected and sorted.

[0004] To this end, prior art announcement number CN205360157U (application number 201620092096.3) discloses a syringe needle extraction device, see Figure 1 The syringe needle extraction device includes a housing and a collection box. The collection box is fixed to the lower portion of the housing, and the upper end of the collection box is connected to the housing. A needle insertion slot is defined at the front end of the housing. Two side-by-side roller assemblies are located within the housing behind the needle insertion slot. Each roller assembly includes two upper and lower rollers that rotate relative to each other. Each roller is coated with a silicone layer, and the silicone layer of at least one roller has multiple grooves parallel to the axis of the roller. However, the spacing between the two rollers in the roller assembly is fixed, and the friction force exerted by the roller on the needle remains constant. The pressure exerted by the roller surface on the needle is relatively low, and the roller surface will wear after long-term operation, making it difficult to ensure that the outer surface of the roller can effectively drive the needle to separate from the syringe.

[0005] Prior art publication number CN113353493A (application number 202110715832.1) and CN216995965U applied on the same day disclose a separation device and a medical waste sorting and processing device including the separation device, wherein, see Figure 2, the separating device includes a support table, a separating knife, a sensor, and a blanking table mechanism. The separating knife has a U-shaped opening for accommodating the connecting part of the syringe needle. The syringe needle has a retaining piece, and the size of the U-shaped opening is smaller than the retaining piece of the syringe needle. The separating knife includes a first separating knife and a second separating knife; the separating driving device is fixed on the support table and is used to drive the first separating knife to move; the sensor is electrically connected to the separating driving device and is used to sense the syringe located on the separating knife; the second separating knife is fixed on the blanking table mechanism, and the blanking table mechanism has a V-shaped groove for accommodating the syringe barrel, and the V-shaped groove cooperates with the U-shaped opening; this separating device can automatically separate the needle and barrel of the syringe, avoiding the risk of medical exposure and infection caused by manual separation of the syringe. And a multi-functional sharp container provided by the prior art publication number CN215606333U (application number 202120799548.2) separates the needle of the syringe from the barrel through a needle-pulling assembly, and the needle falls into the needle collection bucket below for centralized collection. None of the above prior arts deal with the end of the needle, and the problem of the needle hurting people cannot be avoided.

[0006] The prior art publication number CN221266840U (application number 202321436289.2) discloses a sharp container for medical care, see Figure 3, the medical care sharp container includes a collection box, a sealing cover is threadedly connected above the collection box, and a feed pipe is fixedly installed on the top of the sealing cover; a first connecting rod is fixedly installed on the inner top wall of the sealing cover, and two scissor blades are movably connected to the outer side wall of the first connecting rod, and the two scissor blades are installed in a scissor shape; a driving mechanism is arranged on the top of the collection box, the output end of the driving mechanism is connected with a second connecting rod, and two elliptical plates are fixedly installed on the outer side wall of the second connecting rod, and the two elliptical plates are located between the two scissor blades; a sealing component, the sealing component includes a sealing plate movably inserted on the feed pipe; the medical care sharp container drives the first connecting rod to expand outwards through the driving mechanism so that the other ends of the scissor blades approach each other and shear the infusion tube with a needle in a scissor shearing manner for separation and recovery; the prior art can separate the needle and the syringe tube of the infusion tube. The prior art publication number CN212244773U (application number 202020741756.2) discloses a classified medical waste recycling bin, which is convenient for medical staff to cut and collect some hoses with needles by providing a swing rod, a blade and a placement box. The prior art publication number CN211282285U (201921241451.9) discloses a collection device for medical waste, which clamps the needle on the needle through a first clamping plate and a second clamping plate, removes the needle through a blade, and then throws it into the solid waste collection cavity to complete the collection and treatment of syringe waste. The prior art publication number CN221061383U (202321938723.7) discloses a separation kit for sharp medical waste, and the infusion set separation mechanism can cut and separate the needle and the infusion tube of the infusion set. The separation principles of the above prior arts for the needle and the syringe tube are similar, all of which are realized by shearing. However, part of the syringe tube will remain on the separated needle. When recycling the needle, it is necessary to process the part of the syringe tube remaining on the needle, which increases the recycling cost and procedure of the needle; in addition, the end of the needle cannot be processed, and the problem that the needle can hurt people cannot be avoided.

[0007] The prior art publication number CN111517015A (application number 202010259440.4) discloses a medical waste classification collection device. See Figure 4 , this medical waste classification collection device realizes the collection of lighter sundries in medical waste through a blast component and a top suction component, the collection of magnetic blades and needles through a soft magnetic material and a pushing component, and the glass fragments are poured into the glass collection cavity obliquely by a partition plate, realizing the classified collection of medical waste. However, this prior art only automatically classifies and collects medical waste with different physical properties. Due to the metal property of the needle, medical waste such as syringes will be collected into the sharp collection cavity, and the sharp collection cavity contains non-metallic medical waste such as syringe barrels. The classification method of this prior art is simple and rough, and cannot classify and collect needles and syringe barrels.

[0008] Prior art announcement number CN111703779B (application number 202010647657.2) discloses a comprehensive recycling device for waste in a nurse station, see Figure 5 The comprehensive waste recycling device of the nurse station includes a recycling cabinet and a waste syringe processing mechanism, a waste infusion bag processing mechanism and a waste cotton swab processing mechanism arranged on the recycling cabinet. The recycling cabinet includes a cabinet body, which is divided into three chambers by a T-shaped partition. The waste syringe processing mechanism, the waste infusion bag processing mechanism and the waste cotton swab processing mechanism are respectively arranged in the three chambers. This existing technology can process discarded syringes. The waste syringe processing mechanism can realize the disassembly of the needle and the syringe. After the needle and the syringe are separated, they are recycled separately. In order to prevent the discarded needle from being recycled and reused, the needle can be bent during the disassembly process to realize the destruction of the needle. At the same time, in order to prevent the needle from stabbing the recycling staff during the recycling process, the needle tip can also be bent while the needle is bent, thereby minimizing the probability of the needle tip injuring people. However, the needle of the prior art may still hook or prick a person. The needle and the syringe are separated by cutting the disassembled rod. Part of the needle tube will remain on the separated needle. When the needle is recycled, the part of the needle tube remaining on the needle needs to be processed, which increases the recycling cost and procedures of the needle.

[0009] Prior art publication number CN217660167U discloses a portable medical sharps container, comprising a medical sharps container body, a connecting block, a handle, a fixed column, and a detachable movable assembly. The medical sharps container body is mounted with the connecting block, the handle is mounted on the connecting block, and the bottom of the medical sharps container body is mounted with a fixed column. The bottom of the fixed column has a threaded hole, and the detachable movable assembly can be threadedly fixed to the fixed column through the threaded hole. The detachable movable assembly facilitates the sliding of the medical sharps container body on the ground, making it easier to use. This invention solves a different technical problem than the present application, has a different technical solution, and has different technical effects. Utility Model Content

[0010] In view of this, the utility model provides an improved medical waste sorting and collection device, which aims to improve the insecurity and inefficiency of the sorting and collection of syringe-type medical waste, and enhance the safety and efficiency of the sorting and collection of high-syringe-type medical waste.

[0011] The utility model provides an improved medical waste classification and collection device, comprising: a collection box, a partition plate, a separation mechanism, a grinding wheel, a telescopic rod, a liquid partition plate, a disinfection lamp and a driving mechanism, wherein:

[0012] The collection box has a collection chamber;

[0013] The partition board is arranged in the collection chamber along a direction perpendicular to the horizontal plane to divide the collection chamber into a needle head box and a syringe barrel box. Both the syringe barrel box and the needle head box have open-top structures. A cover body is arranged on the top of the needle head box. Drainage holes are provided at the bottoms of both the needle head box and the syringe barrel box; the partition board is provided with an insertion barrel through hole for inserting the syringe barrel of the syringe, and the axis of the insertion barrel through hole is parallel to the horizontal plane;

[0014] The separation mechanism includes an eccentric wheel and a rotating wheel. Both the eccentric wheel and the rotating wheel are rotatably installed on the cover body; in a direction parallel to the horizontal plane and perpendicular to the axis of the insertion barrel through hole, the eccentric wheel and the rotating wheel are relatively arranged on both sides of the needle head of the syringe;

[0015] The grinding wheel is rotatably installed on the cover body. The grinding wheel is located on the side of the needle head of the syringe away from the syringe barrel, and a grinding layer is provided on the outer peripheral surface of the grinding wheel;

[0016] The number of the telescopic rods is at least one. One end of the telescopic rod is connected to the partition board. A flange is provided on the outer peripheral wall of the syringe barrel of the syringe, and the other end of the telescopic rod abuts against the side of the flange close to the needle head;

[0017] The liquid separation board is arranged in the needle head box and the syringe barrel box, and at least two liquid separation through holes are provided on the liquid separation board;

[0018] The disinfection lamp is arranged in the needle head box and the syringe barrel box;

[0019] The driving mechanism is installed on the cover body, and the driving mechanism drives the eccentric wheel, the rotating wheel and the grinding wheel to rotate;

[0020] The eccentric wheel and the rotating wheel rotate towards each other; the outer peripheral surface of the eccentric wheel includes a disengaging arc surface, a transition arc surface and a contact arc surface which are connected in sequence. One end of the transition arc surface is connected to the disengaging arc surface, and the other end of the transition arc surface is connected to the contact arc surface; the distance between the contact arc surface and the eccentricity of the eccentric wheel is L, the distance between the transition arc surface and the eccentricity of the eccentric wheel is m, and the distance between the disengaging arc surface and the eccentricity of the eccentric wheel is n, where L>m>n;

[0021] During the rotation of the eccentric wheel, the minimum gap between the contact arc surface and the outer peripheral surface of the rotating wheel is D min , D min ≤d, where d is the diameter of the needle head of the syringe.

[0022] Optionally, the eccentric wheel is rotatably installed on the cover body through an eccentric connecting shaft, the rotating wheel is rotatably installed on the cover body through a rotating connecting shaft, and the grinding wheel is rotatably installed on the cover body through a grinding connecting shaft;

[0023] The cover body is provided with an eccentric through hole, a rotating through hole and a grinding through hole;

[0024] The eccentric connecting shaft is installed in the eccentric through-hole through a rotating bearing, the rotating connecting shaft is installed in the rotating through-hole through a rotating bearing, and the frosted connecting shaft is installed in the frosted through-hole through a rotating bearing;

[0025] The driving mechanism includes a motor, a driving pulley, a driven pulley, a driving gear, a driven gear and a transmission belt. The motor is installed on the cover body, and the motor, the driving pulley, the driven pulley, the driven gear and the transmission belt are all located outside the syringe head box;

[0026] The output shaft of the motor is connected to the rotating connecting shaft. The rotating connecting shaft is provided with a driving gear and a driving pulley. The eccentric connecting shaft is provided with a driven gear, and the driven gear meshes with the driving gear. The frosted connecting shaft is provided with a driven pulley, and the driving pulley and the driven pulley are connected by a transmission belt.

[0027] Optionally, the number of the telescopic rods is at least two, and the plurality of telescopic rods are uniformly distributed along the circumferential direction on the outer periphery of the syringe barrel.

[0028] Optionally, silicone layers are provided on the outer peripheral surface and the contact arc surface of the rotating wheel.

[0029] Optionally, D min The range of the difference between D and d is 0.05 mm to 0.01 mm.

[0030] Compared with the prior art, an improved medical waste classification and collection device provided by the present utility model at least achieves the following beneficial effects:

[0031] In this application, before collecting the syringe in the medical waste, the eccentric wheel is in the initial state, that is, the disengaging arc surface of the eccentric wheel rotates to the side of the syringe needle, and the closest distance between the outer peripheral surface of the eccentric wheel and the outer peripheral surface of the rotating wheel is D max , and the outer peripheral surface of the eccentric wheel does not contact the syringe needle. At this time, the length of the telescopic rod is R0. When collecting the syringe in the medical waste, the syringe needle is inserted into the insertion barrel through-hole in the direction of the syringe head box until the flange provided on the outer peripheral wall of the syringe barrel abuts against the telescopic rod. At this time, the length of the telescopic rod is R0. The driving mechanism is started and drives the eccentric wheel, the rotating wheel and the grinding wheel to rotate. The eccentric wheel rotates, the disengaging arc surface gradually moves away from the rotating wheel, the transition surface gradually approaches the rotating wheel, and the distance D between the outer peripheral surface of the eccentric wheel and the outer peripheral surface of the rotating wheel gradually decreases. At this time, the length of the telescopic rod is R0. The eccentric wheel continues to rotate until the contact arc surface rotates to the side of the syringe needle. At this time, the distance D between the outer peripheral surface of the eccentric wheel and the outer peripheral surface of the rotating wheel is the smallest. At this time, D = D min , and D min≤d, the outer peripheral surface of the rotating wheel and the contact arc surface both exert pressure on the needle of the syringe, and frictional forces are generated both between the contact arc surface and the outer surface of the needle and between the outer peripheral surface of the rotating wheel and the outer surface of the needle. Moreover, this frictional force is directed away from the barrel of the syringe. Thus, the frictional forces exerted by the outer peripheral surface of the rotating wheel and the contact arc surface on the outer surface of the needle can drive the needle to move, and at the same time, the telescopic rod adaptively shortens, with its length being R1, where R1 < R0. The telescopic rod remains in contact with the flange, and the barrel remains relatively stationary. Thus, this frictional force drives the separation of the needle from the barrel, which is conducive to the separate recycling of the needle and the barrel; during the entire process from the start of the needle's movement to the separation between the needle and the barrel, the needle moves towards the grinding wheel and comes into contact with the grinding wheel. The outer peripheral surface of the grinding wheel can grind the needle of the syringe, and the tip of the needle is ground flat. The cover prevents grinding debris from splashing out of the needle box; afterwards, the needle falls into the needle box under the action of gravity for collection. At the same time, the telescopic rod extends, and the other end of the telescopic rod pushes the flange to move away from the grinding wheel, which can eject the barrel from the insertion barrel through-hole. The length of the telescopic rod is R2, where R2 > R0. The barrel falls into the barrel box under the action of gravity for collection; the needle and the barrel will respectively land on the liquid separation plates arranged in the needle box and the barrel box. The disinfection lamps in the needle box and the barrel box respectively perform disinfection treatment on the needle and the barrel. The residual liquid in the needle and the barrel can flow through the liquid separation through-holes to the lower part of the liquid separation plate, and the liquid below the liquid separation plate can flow out through the liquid discharge holes. The improved medical waste classification and collection device provided by this application can simultaneously achieve the separation of the needle from the barrel and the effect of needle tip grinding in one operation process. The needle and the barrel can be automatically classified and collected, the residual liquid is centrally processed, and the needle and the barrel are disinfected. The whole process is continuous and automatically completed, improving the treatment efficiency of waste syringes, avoiding infection of the staff, and ensuring the safety of the staff.

[0032] Of course, any product implementing the present utility model does not necessarily need to simultaneously achieve all the above-mentioned technical effects.

[0033] Through the following detailed description of the exemplary embodiments of the present utility model with reference to the accompanying drawings, other features and advantages of the present utility model will become clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.

[0035] Figure 1 Shown is a schematic structural diagram of a device for pulling out the needle of a syringe disclosed in the prior art (publication number CN215606333U);

[0036] Figure 2The figure shows a schematic structural diagram of a separation device disclosed in the prior art (publication number CN113353493A);

[0037] Figure 3 The figure shows a schematic structural diagram of a sharp instrument box for medical care disclosed in the prior art (publication number CN221266840U);

[0038] Figure 4 The figure shows a schematic structural diagram of a medical waste classification and collection device disclosed in the prior art (publication number CN111517015A);

[0039] Figure 5 The figure shows a schematic structural diagram of a comprehensive recycling device for waste at the nurse station disclosed in the prior art (publication number CN111703779B);

[0040] Figure 6 The figure shows a front view of an improved medical waste classification and collection device provided by an embodiment of the present invention;

[0041] Figure 7 The figure shows Figure 6 a partial enlarged view in;

[0042] Figure 8 The figure shows a schematic structural diagram of a syringe in an embodiment of the present invention;

[0043] Figure 9 The figure shows a top view schematic diagram of a driving mechanism in an embodiment of the present invention;

[0044] Figure 10 The figure shows a top view schematic diagram of an eccentric wheel in an embodiment of the present invention;

[0045] Figure 11 The figure shows a bottom view schematic diagram of a separation mechanism in an embodiment of the present invention;

[0046] Figure 12 The figure shows another bottom view schematic diagram of a separation mechanism in an embodiment of the present invention;

[0047] Figure 13 The figure shows another bottom view schematic diagram of a separation mechanism in an embodiment of the present invention;

[0048] Figure 14 The figure shows another bottom view schematic diagram of a separation mechanism in an embodiment of the present invention;

[0049] Figure 15 The figure shows another bottom view schematic diagram of a separation mechanism in an embodiment of the present invention.

[0050] Brief Description of the Drawings: 001 - syringe, 011 - barrel of the syringe, 012 - needle of the syringe, 013 - flange, 100 - collection box, 101 - collection chamber, 110 - needle box, 120 - barrel box, 102 - liquid discharge hole, 130 - cover, 200 - partition board, 201 - insertion barrel through hole, 400 - separation mechanism, 410 - eccentric wheel, 411 - disengaging arc surface, 412 - transition arc surface, 413 - contact arc surface, 414 - eccentric connecting shaft, 420 - rotating wheel, 421 - rotating connecting shaft, 500 - grinding wheel, 501 - grinding connecting shaft, 510 - grinding layer, 600 - telescopic rod, 700 - liquid separation board, 701 - liquid separation through hole, 800 - disinfection lamp, 900 - driving mechanism, 910 - motor, 920 - driving gear, 930 - driving pulley, 940 - driven gear, 950 - driven pulley, 960 - transmission belt. Detailed Description of the Embodiments

[0051] Now, various exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that: Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

[0052] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way limits the present invention, its application, or its use.

[0053] Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be regarded as part of the specification.

[0054] In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0055] Without departing from the spirit or scope of the present invention, various modifications and variations can be made to the present invention, which will be apparent to those skilled in the art. Therefore, the present invention is intended to cover modifications and variations of the present invention that fall within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in the embodiments of the present invention can be combined with each other without conflict.

[0056] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0057] Embodiment 1

[0058] Figure 6 The figure shows the front view of an improved medical waste classification and collection device provided by an embodiment of the present invention. Figure 7 As shown Figure 6 in the partial enlarged view of Figure 8 The figure shows the structural schematic diagram of a syringe in an embodiment of the present invention. Figure 9 The figure shows the top view schematic diagram of a driving mechanism in an embodiment of the present invention. Figure 10 The figure shows the top view schematic diagram of an eccentric wheel in an embodiment of the present invention. Figure 11 The figure shows the bottom view schematic diagram of a separation mechanism in an embodiment of the present invention. Figure 12 The figure shows another bottom view schematic diagram of a separation mechanism in an embodiment of the present invention. Figure 13 The figure shows another bottom view schematic diagram of a separation mechanism in an embodiment of the present invention. Figure 14 The figure shows another bottom view schematic diagram of a separation mechanism in an embodiment of the present invention. Figure 15 The figure shows another bottom view schematic diagram of a separation mechanism in an embodiment of the present invention.

[0059] Please refer to Figures 6 to 15 , an embodiment of the present invention provides an improved medical waste classification and collection device, including: a collection box 100, a partition board 200, a separation mechanism 400, a grinding wheel 500, a telescopic rod 600, a liquid separation board 700, a disinfection lamp 800 and a driving mechanism 900, wherein,

[0060] The collection box 100 has a collection chamber 101;

[0061] The partition board 200 is arranged in the collection chamber 101 along a direction perpendicular to the horizontal plane to divide the collection chamber 101 into a needle head box 110 and a syringe barrel box 120. Both the syringe barrel box 120 and the needle head box 110 are open-top structures. A cover body 130 is arranged at the top of the needle head box 110. Drain holes 102 are provided at the bottoms of both the needle head box 110 and the syringe barrel box 120; The partition board 200 is provided with an insertion barrel through hole 201 for inserting the syringe barrel 012 of the syringe, and the axis of the insertion barrel through hole 201 is parallel to the horizontal plane;

[0062] The separation mechanism 400 includes an eccentric wheel 410 and a rotating wheel 420. Both the eccentric wheel 410 and the rotating wheel 420 are rotatably installed on the cover body 130; In a direction parallel to the horizontal plane and perpendicular to the axis of the insertion barrel through hole 201, the eccentric wheel 410 and the rotating wheel 420 are oppositely arranged on both sides of the needle head 011 of the syringe;

[0063] The grinding wheel 500 is rotatably installed on the cover body 130. The grinding wheel 500 is located on the side of the needle head 011 of the syringe away from the syringe barrel 012, and a grinding layer 510 is provided on the outer peripheral surface of the grinding wheel 500;

[0064] The number of the telescopic rods 600 is at least one. One end of the telescopic rod 600 is connected to the partition plate 200. A flange is provided on the outer peripheral wall of the syringe barrel 012. The other end of the telescopic rod 600 abuts against the side of the flange close to the needle head 011.

[0065] The liquid separation plate 700 is arranged in the needle head box 110 and the syringe barrel box 120. The liquid separation plate 700 is provided with at least two liquid separation through holes 701.

[0066] The disinfection lamp 800 is arranged in the needle head box 110 and the syringe barrel box 120.

[0067] The driving mechanism 900 is installed on the cover body 130. The driving mechanism 900 drives the eccentric wheel 410, the rotating wheel 420 and the grinding wheel 500 to rotate.

[0068] The eccentric wheel 410 and the rotating wheel 420 rotate towards each other. The outer peripheral surface of the eccentric wheel 410 includes a disengaging arc surface 411, a transition arc surface 412 and a contact arc surface 413. One end of the transition arc surface 412 is connected to the disengaging arc surface 411, and the other end of the transition arc surface 412 is connected to the contact arc surface 413. The distance between the contact arc surface 413 and the eccentricity of the eccentric wheel 410 is L, the distance between the transition arc surface 412 and the eccentricity of the eccentric wheel 410 is m, and the distance between the disengaging arc surface 411 and the eccentricity of the eccentric wheel 410 is n, where L > m > n.

[0069] During the rotation of the eccentric wheel 410, the minimum gap between the outer peripheral surface of the rotating wheel 420 and the contact arc surface 413 is D min , D min ≤ d, where d is the diameter of the needle head 011 of the syringe.

[0070] In this embodiment, before collecting the syringe in the medical waste, refer to Figure 11 , the eccentric wheel 410 is in the initial state, that is, the disengaging arc surface 411 of the eccentric wheel 410 rotates to the side of the needle head 012 of the syringe. The closest distance between the outer peripheral surface of the eccentric wheel 410 and the outer peripheral surface of the rotating wheel 420 is D max , the outer peripheral surface of the eccentric wheel 410 does not contact the needle head 012 of the syringe. At this time, the length of the telescopic rod 600 is R0. When collecting the syringe in the medical waste, refer to Figure 12 , the needle head 012 of the syringe is inserted into the insertion cylinder through hole 201 towards the needle head box 110 until the flange provided on the outer peripheral wall of the syringe barrel 011 abuts against the telescopic rod 600. At this time, the length of the telescopic rod 600 is R0. Refer to Figure 13, the drive mechanism 900 starts and drives the eccentric wheel 410, the rotating wheel 420 and the grinding wheel 500 to rotate. As the eccentric wheel 410 rotates, the disengaging arc surface 411 gradually moves away from the rotating wheel 420, and the transition surface 412 gradually approaches the rotating wheel 420. The distance D between the outer peripheral surface of the eccentric wheel 410 and the outer peripheral surface of the rotating wheel 420 gradually decreases. At this time, the length of the telescopic rod 600 is R0. Refer to Figure 14 , the eccentric wheel 410 continues to rotate until the contact arc surface 413 rotates to one side of the needle 012 of the syringe. At this time, the distance D between the outer peripheral surface of the eccentric wheel 410 and the outer peripheral surface of the rotating wheel 420 is the smallest. At this time, D = D min , and D min ≤d. In specific implementation, D min is slightly smaller than the diameter d of the needle 011. For example, D min The range of the difference from d is 0.05 mm to 0.01 mm. The outer peripheral surface of the rotating wheel 420 and the contact arc surface 413 both exert pressure on the needle 012 of the syringe. Frictional forces are generated both between the contact arc surface 413 and the outer surface of the needle 012 and between the outer peripheral surface of the rotating wheel 420 and the outer surface of the needle 012. And this frictional force is in the direction away from the barrel 011 of the syringe. Furthermore, the frictional forces exerted by the outer peripheral surface of the rotating wheel 420 and the contact arc surface 413 on the outer surface of the needle 012 can drive the needle 012 to move. At the same time, the telescopic rod 600 adaptively shortens, and its length is R1, R1 < R0. The telescopic rod 600 remains in contact with the flange 013. The barrel 011 is relatively stationary. Thus, this frictional force drives the needle 012 to separate from the barrel 011, which is beneficial to the separate recycling of the needle 012 and the barrel 011; during the entire process from the start of the movement of the needle 012 to the separation between the needle 012 and the barrel 011, the needle 012 moves towards the grinding wheel 500 and contacts the grinding wheel 500. The outer peripheral surface of the grinding wheel 500 can grind the needle 012 of the syringe, and the tip of the needle 012 is ground flat, which can avoid the situation that the needle 012 harms the staff and causes cross-infection. This embodiment can simultaneously achieve the separation of the needle 012 and the barrel 011 and the effect of grinding the needle 012 in one operation process, which can greatly improve the treatment efficiency of waste syringes.

[0071] In this embodiment, after the separation mechanism 400 separates the needle 012 of the syringe from the barrel 011, under the action of gravity, the needle 012 can fall into the needle box 110 for collection. At the same time, refer to Figure 15, the telescopic rod 600 extends, and the other end of the telescopic rod 600 pushes the flange 013 to move away from the grinding wheel 500. At this time, the syringe barrel 011 can be disengaged from the insertion barrel through hole 201. At this time, the length of the telescopic rod 600 is R2, and R2 > R0. Further, under the action of gravity, the syringe barrel 011 can fall into the syringe barrel box 120 for collection, that is, the separated needle head 012 and syringe barrel 011 can be automatically sorted and collected without manual sorting, saving manpower and being convenient and efficient.

[0072] In this embodiment, liquid separation plates 700 are provided in the needle head box 110 and the syringe barrel box 120. In this way, after the needle head 012 and the syringe barrel 011 are separated, the needle head 012 can fall on the liquid separation plate 700 provided in the needle head box 110, and the syringe barrel 011 can fall on the liquid separation plate 700 provided in the syringe barrel box 120; and the liquid separation plate 700 is provided with a plurality of liquid separation through holes. In the needle head box 110, the residual liquid in the needle head 012 can flow through the liquid separation through holes to the lower part of the liquid separation plate 700; in the syringe barrel box 120, the residual liquid in the syringe barrel 011 can flow through the liquid separation through holes to the lower part of the liquid separation plate 700. Finally, the liquid below the liquid separation plate 700 can flow out through the liquid discharge hole 102; in this embodiment, through the liquid separation plate 700, the residual liquid in the syringe can be separated from the needle head 012 and the syringe barrel 011 for subsequent centralized treatment of the residual liquid. In addition, in this embodiment, disinfection lamps 800 are also provided in the needle head box 110 and the syringe barrel box 120. The disinfection lamp 800 in the needle head box 110 can perform sterilization and disinfection treatment on the needle head 012, and the disinfection lamp 800 in the syringe barrel box 120 can perform sterilization and disinfection treatment on the syringe barrel 011, avoiding infection of the staff during the classified collection of syringes and ensuring the safety of the staff.

[0073] In this embodiment, the needle head box 110 is of an open-top structure, and a cover body 130 is provided at the top of the needle head box 110. In this way, the cover body 130 can protect the staff, and during the grinding of the needle head 012 of the syringe by the grinding wheel 500, it can avoid the grinding debris from splashing out of the needle head box 110, further ensuring the safety of the staff.

[0074] Embodiment Two

[0075] Please refer to Figures 6 to 15 , the embodiment of the present utility model provides an improved medical waste classification and collection device, including: a collection box 100, a partition plate 200, a separation mechanism 400, a grinding wheel 500, a telescopic rod 600, a liquid separation plate 700, a disinfection lamp 800, and a driving mechanism 900, wherein,

[0076] The collection box 100 has a collection chamber 101;

[0077] The partition plate 200 is disposed in the collection chamber 101 along a direction perpendicular to the horizontal plane to divide the collection chamber 101 into a needle head box 110 and a syringe barrel box 120. Both the syringe barrel box 120 and the needle head box 110 are open-top structures. A cover body 130 is provided at the top of the needle head box 110. Drainage holes 102 are provided at the bottoms of both the needle head box 110 and the syringe barrel box 120. The partition plate 200 is provided with an insertion barrel through hole 201 for inserting the syringe barrel 012 of the syringe. The axis of the insertion barrel through hole 201 is parallel to the horizontal plane.

[0078] The separation mechanism 400 includes an eccentric wheel 410 and a rotating wheel 420. Both the eccentric wheel 410 and the rotating wheel 420 are rotatably mounted on the cover body 130. In a direction parallel to the horizontal plane and perpendicular to the axis of the insertion barrel through hole 201, the eccentric wheel 410 and the rotating wheel 420 are oppositely arranged on both sides of the needle head 011 of the syringe.

[0079] The grinding wheel 500 is rotatably mounted on the cover body 130. The grinding wheel 500 is located on the side of the needle head 011 of the syringe away from the syringe barrel 012. The outer peripheral surface of the grinding wheel 500 is provided with an abrasive layer 510.

[0080] The number of the telescopic rods 600 is at least one. One end of the telescopic rod 600 is connected to the partition plate 200. A flange is provided on the outer peripheral wall of the syringe barrel 012 of the syringe. The other end of the telescopic rod 600 abuts against the side of the flange close to the needle head 011.

[0081] The liquid separation plate 700 is disposed in the needle head box 110 and the syringe barrel box 120. The liquid separation plate 700 is provided with at least two liquid separation through holes 701.

[0082] The disinfection lamp 800 is disposed in the needle head box 110 and the syringe barrel box 120.

[0083] The driving mechanism 900 is mounted on the cover body 130. The driving mechanism 900 drives the eccentric wheel 410, the rotating wheel 420 and the grinding wheel 500 to rotate.

[0084] The eccentric wheel 410 and the rotating wheel 420 rotate towards each other. The outer peripheral surface of the eccentric wheel 410 includes a disengaging arc surface 411, a transition arc surface 412 and a contact arc surface 413. One end of the transition arc surface 412 is connected to the disengaging arc surface 411, and the other end of the transition arc surface 412 is connected to the contact arc surface 413. The distance between the contact arc surface 413 and the eccentricity of the eccentric wheel 410 is L, the distance between the transition arc surface 412 and the eccentricity of the eccentric wheel 410 is m, and the distance between the disengaging arc surface 411 and the eccentricity of the eccentric wheel 410 is n, where L > m > n.

[0085] During the rotation of the eccentric wheel 410, the minimum clearance between the outer peripheral surface of the rotating wheel 420 and the contact arc surface 413 is D min , D min≤d, where d is the diameter of the syringe needle.

[0086] In this embodiment, the driving mechanism 900 drives the eccentric wheel 410, the rotating wheel 420 and the grinding wheel 500 to rotate. When the eccentric wheel 410 rotates, when the contact arc surface 413 rotates to the side of the needle 012 of the syringe, the distance D between the outer peripheral surface of the eccentric wheel 410 and the outer peripheral surface of the rotating wheel 420 is the smallest. The outer peripheral surface of the rotating wheel 420 and the contact arc surface 413 both apply pressure to the needle 012 of the syringe. The friction force applied by the outer peripheral surface of the rotating wheel 420 and the contact arc surface 413 to the outer surface of the needle 012 can drive The needle 012 moves, driving it to separate from the syringe 011. During the entire process from the needle 012's initial movement to its separation from the syringe 011, the needle 012 moves toward the grinding wheel 500 and contacts the grinding wheel 500. The outer surface of the grinding wheel 500 can grind the syringe needle 012. This embodiment can simultaneously achieve the effects of separating the needle 012 from the syringe 011 and grinding the needle 012 in a single operation, greatly improving the efficiency of handling discarded syringes. Subsequently, under the action of gravity, the needle 012 can fall into the syringe box 110 for collection. At the same time, the telescopic rod 600 pushes the flange 013, which can remove the syringe 011 from the insertion barrel through hole 201, achieving automatic classification and collection of the needle 012 and syringe 011, eliminating the need for manual sorting, saving manpower, and being convenient and efficient.

[0087] Alternatively, see Figure 7 、 5 and Figure 11 The eccentric wheel 410 is rotatably mounted on the cover body 130 via the eccentric connecting shaft 414, the rotating wheel 420 is rotatably mounted on the cover body 130 via the rotating connecting shaft 421, and the grinding wheel 500 is rotatably mounted on the cover body 130 via the grinding connecting shaft 501;

[0088] The cover 130 is provided with an eccentric through hole, a rotating through hole and a frosted through hole;

[0089] The eccentric connecting shaft 414 is installed in the eccentric through hole through a rotating bearing, the rotating connecting shaft 421 is installed in the rotating through hole through a rotating bearing, and the frosted connecting shaft 501 is installed in the frosted through hole through a rotating bearing;

[0090] The drive mechanism 900 includes a motor 910, a driving gear 920, a driving pulley 930, a driven gear 940, a driven pulley 950, and a transmission belt 960. The motor 910 is mounted on the cover 130. The motor 910, the driving pulley 930, the driven pulley 950, the driven gear 940, and the transmission belt 960 are all located outside the needle box 110.

[0091] The output shaft of the motor 910 is connected to the rotating connecting shaft 421. The rotating connecting shaft 421 is provided with a driving gear 920 and a driving pulley 930. The eccentric connecting shaft 414 is provided with a driven gear 940, and the driven gear 940 meshes with the driving gear 920. The grinding connecting shaft 501 is provided with a driven pulley 950, and the driving pulley 930 and the driven pulley 950 are connected by a transmission belt 960.

[0092] In this embodiment, the motor 910, the driving pulley 930, the driven pulley, the driven gear 940, and the transmission belt 960 are all located outside the needle box 110. During the grinding of the syringe needle 012 by the grinding wheel 500, it can prevent grinding debris from splashing into the driving mechanism 900 and affecting the normal operation of the driving mechanism 900, and can improve the service life of the driving mechanism 900. Specifically, when the motor 910 is started, the output shaft of the motor 910 drives the rotating connecting shaft 421 to rotate. At the same time, the driving gear 920 and the driving pulley 930 rotate. The driving gear 920 drives the driven gear 940 to rotate, the eccentric wheel 410 can rotate, and the driving pulley drives the driven pulley 950 to rotate through the transmission belt 960, and the grinding wheel 500 can rotate, realizing the reasonable utilization of the output power of the motor 910.

[0093] Embodiment Three

[0094] Please refer to Figures 6 to 15 , the embodiment of the present utility model provides an improved medical waste classification collection device, including: a collection box 100, a partition plate 200, a separation mechanism 400, a grinding wheel 500, a telescopic rod 600, a liquid separation plate 700, a disinfection lamp 800, and a driving mechanism 900, wherein,

[0095] The collection box 100 has a collection chamber 101;

[0096] The partition plate 200 is arranged in the collection chamber 101 along a direction perpendicular to the horizontal plane to divide the collection chamber 101 into a needle box 110 and a syringe barrel box 120. Both the syringe barrel box 120 and the needle box 110 are open-top structures. A cover body 130 is provided at the top of the needle box 110. Drain holes 102 are provided at the bottoms of both the needle box 110 and the syringe barrel box 120. The partition plate 200 is provided with an insertion barrel through hole 201 for inserting the syringe barrel 012 of the syringe, and the axis of the insertion barrel through hole 201 is parallel to the horizontal plane;

[0097] The separation mechanism 400 includes an eccentric wheel 410 and a rotating wheel 420. Both the eccentric wheel 410 and the rotating wheel 420 are rotatably installed on the cover body 130; in a direction parallel to the horizontal plane and perpendicular to the axis of the insertion barrel through hole 201, the eccentric wheel 410 and the rotating wheel 420 are relatively arranged on both sides of the syringe needle 011;

[0098] The grinding wheel 500 is rotatably mounted on the cover 130. The grinding wheel 500 is located on the side of the syringe needle 011 away from the syringe barrel 012. The outer peripheral surface of the grinding wheel 500 is provided with an abrasive layer 510;

[0099] The number of the telescopic rods 600 is at least one. One end of the telescopic rod 600 is connected to the partition plate 200. A flange is provided on the outer peripheral wall of the syringe barrel 012. The other end of the telescopic rod 600 abuts against the side of the flange close to the needle 011;

[0100] The liquid separation plate 700 is arranged in the needle box 110 and the syringe barrel box 120. The liquid separation plate 700 is provided with at least two liquid separation through holes 701;

[0101] The disinfection lamp 800 is arranged in the needle box 110 and the syringe barrel box 120;

[0102] The driving mechanism 900 is mounted on the cover 130. The driving mechanism 900 drives the eccentric wheel 410, the rotating wheel 420 and the grinding wheel 500 to rotate;

[0103] The eccentric wheel 410 and the rotating wheel 420 rotate towards each other. The outer peripheral surface of the eccentric wheel 410 includes a disengaging arc surface 411, a transition arc surface 412 and a contact arc surface 413. One end of the transition arc surface 412 is connected to the disengaging arc surface 411, and the other end of the transition arc surface 412 is connected to the contact arc surface 413. The distance between the contact arc surface 413 and the eccentricity of the eccentric wheel 410 is L, the distance between the transition arc surface 412 and the eccentricity of the eccentric wheel 410 is m, and the distance between the disengaging arc surface 411 and the eccentricity of the eccentric wheel 410 is n. Among them, L>m>n;

[0104] During the rotation of the eccentric wheel 410, the minimum gap between the outer peripheral surface of the rotating wheel 420 and the contact arc surface 413 is D min ,D min ≤d, where d is the diameter of the syringe needle 011.

[0105] In this embodiment, the driving mechanism 900 drives the eccentric wheel 410, the rotating wheel 420, and the grinding wheel 500 to rotate. When the eccentric wheel 410 rotates, when the contact arc surface 413 rotates to one side of the needle 012 of the syringe, the distance D between the outer peripheral surface of the eccentric wheel 410 and the outer peripheral surface of the rotating wheel 420 is the smallest. The outer peripheral surface of the rotating wheel 420 and the contact arc surface 413 both apply pressure to the needle 012 of the syringe. The frictional force applied by the outer peripheral surface of the rotating wheel 420 and the contact arc surface 413 to the outer surface of the needle 012 can drive the movement of the needle 012, driving the separation of the needle 012 from the syringe barrel 011. During the entire process from the start of the movement of the needle 012 to the separation between the needle 012 and the syringe barrel 011, the needle 012 moves towards the grinding wheel 500 and contacts the grinding wheel 500. The outer peripheral surface of the grinding wheel 500 can grind the needle 012 of the syringe. This embodiment can simultaneously achieve the separation of the needle 012 from the syringe barrel 011 and the effect of grinding the needle 012 in one operation process, which can greatly improve the processing efficiency of waste syringes. Subsequently, under the action of gravity, the needle 012 can fall into the needle box 110 for collection. At the same time, the telescopic rod 600 pushes the flange 013, which can eject the syringe barrel 011 from the insertion barrel through hole 201, realizing the automatic classification and collection of the needle 012 and the syringe barrel 011, without manual classification, saving manpower, and being convenient and efficient.

[0106] Optionally, referring to Figure 7 , the number of telescopic rods 600 is multiple, and the multiple telescopic rods 600 are evenly distributed circumferentially on the outer periphery of the syringe barrel 011. In this way, the syringe barrel 011 can be evenly stressed circumferentially, which is more conducive to the ejection of the syringe barrel 011 from the insertion barrel through hole 201 and improves the ejection efficiency.

[0107] Embodiment 4

[0108] Please refer to Figures 6 to 15 , this embodiment of the present invention provides an improved medical waste classification and collection device, including: a collection box 100, a partition plate 200, a separation mechanism 400, a grinding wheel 500, a telescopic rod 600, a liquid separation plate 700, a disinfection lamp 800, and a driving mechanism 900, wherein,

[0109] The collection box 100 has a collection chamber 101;

[0110] The partition plate 200 is arranged in the collection chamber 101 along a direction perpendicular to the horizontal plane to divide the collection chamber 101 into a needle box 110 and a syringe barrel box 120. Both the syringe barrel box 120 and the needle box 110 are open-top structures. A cover body 130 is provided at the top of the needle box 110. Drainage holes 102 are provided at the bottoms of both the needle box 110 and the syringe barrel box 120. The partition plate 200 is provided with an insertion barrel through hole 201 for inserting the syringe barrel 012 of the syringe, and the axis of the insertion barrel through hole 201 is parallel to the horizontal plane;

[0111] The separating mechanism 400 includes an eccentric wheel 410 and a rotating wheel 420. Both the eccentric wheel 410 and the rotating wheel 420 are rotatably mounted on the cover body 130. In a direction parallel to the horizontal plane and perpendicular to the axis of the insertion cylinder through-hole 201, the eccentric wheel 410 and the rotating wheel 420 are oppositely arranged on both sides of the syringe needle 011.

[0112] The grinding wheel 500 is rotatably mounted on the cover body 130. The grinding wheel 500 is located on the side of the syringe needle 011 away from the syringe barrel 012. The outer peripheral surface of the grinding wheel 500 is provided with an abrasive layer 510.

[0113] The number of the telescopic rods 600 is at least one. One end of the telescopic rod 600 is connected to the partition plate 200. A flange is provided on the outer peripheral wall of the syringe barrel 012. The other end of the telescopic rod 600 abuts against the side of the flange close to the needle 011.

[0114] The liquid separation plate 700 is arranged in the needle head box 110 and the syringe barrel box 120. The liquid separation plate 700 is provided with at least two liquid separation through-holes 701.

[0115] The disinfection lamp 800 is arranged in the needle head box 110 and the syringe barrel box 120.

[0116] The driving mechanism 900 is mounted on the cover body 130. The driving mechanism 900 drives the eccentric wheel 410, the rotating wheel 420 and the grinding wheel 500 to rotate.

[0117] The eccentric wheel 410 and the rotating wheel 420 rotate towards each other. The outer peripheral surface of the eccentric wheel 410 includes a disengaging arc surface 411, a transition arc surface 412 and a contact arc surface 413. One end of the transition arc surface 412 is connected to the disengaging arc surface 411, and the other end of the transition arc surface 412 is connected to the contact arc surface 413. The distance between the contact arc surface 413 and the eccentricity of the eccentric wheel 410 is L, the distance between the transition arc surface 412 and the eccentricity of the eccentric wheel 410 is m, and the distance between the disengaging arc surface 411 and the eccentricity of the eccentric wheel 410 is n, where L > m > n.

[0118] During the rotation of the eccentric wheel 410, the minimum gap between the outer peripheral surface of the rotating wheel 420 and the contact arc surface 413 is D min , D min ≤ d, where d is the diameter of the syringe needle 011.

[0119] In this embodiment, the driving mechanism 900 drives the eccentric wheel 410, the rotating wheel 420 and the grinding wheel 500 to rotate. When the eccentric wheel 410 rotates, when the contact arc surface 413 rotates to one side of the needle 012 of the syringe, the distance D between the outer peripheral surface of the eccentric wheel 410 and the outer peripheral surface of the rotating wheel 420 is the smallest. The outer peripheral surface of the rotating wheel 420 and the contact arc surface 413 both exert pressure on the needle 012 of the syringe. The frictional force exerted on the outer surface of the needle 012 by the outer peripheral surface of the rotating wheel 420 and the contact arc surface 413 can drive the needle 012 to move, driving the needle 012 to separate from the syringe barrel 011. During the entire process from the start of the movement of the needle 012 to the separation between the needle 012 and the syringe barrel 011, the needle 012 moves towards the grinding wheel 500 and contacts the grinding wheel 500. The outer peripheral surface of the grinding wheel 500 can grind the needle 012 of the syringe. This embodiment can simultaneously achieve the separation of the needle 012 from the syringe barrel 011 and the effect of grinding the needle 012 in one operation process, which can greatly improve the processing efficiency of waste syringes. Subsequently, under the action of gravity, the needle 012 can fall into the needle box 110 for collection. At the same time, the telescopic rod 600 pushes the flange 013, which can eject the syringe barrel 011 from the insertion barrel through hole 201, realizing the automatic classification and collection of the needle 012 and the syringe barrel 011, without manual classification, saving manpower and being convenient and efficient.

[0120] Optionally, silicone layers are provided on the outer peripheral surface of the rotating wheel 420 and the contact arc surface 413, increasing the dynamic friction coefficient between the outer peripheral surface of the rotating wheel 420 and the contact arc surface 413 and the outer surface of the needle 012. In this way, it is more conducive to the separation between the syringe barrel 011 and the needle 012 of the syringe.

[0121] In summary, an improved medical waste classification and collection device provided by the present application has at least achieved the following beneficial effects:

[0122] In the present application, before collecting the syringe in the medical waste, the eccentric wheel 410 is in an initial state, that is, the disengaging arc surface 411 of the eccentric wheel 410 rotates to one side of the needle 012 of the syringe, and the closest distance between the outer peripheral surface of the eccentric wheel 410 and the outer peripheral surface of the rotating wheel 420 is D max, the outer peripheral surface of the eccentric wheel 410 does not contact the needle 012 of the syringe. At this time, the length of the telescopic rod 600 is R0. When collecting the syringe in the medical waste, the needle 012 of the syringe is inserted into the insertion cylinder through hole 201 in the direction of the needle box 110 until the flange provided on the outer peripheral wall of the syringe barrel 011 abuts against the telescopic rod 600. At this time, the length of the telescopic rod 600 is R0. The driving mechanism 900 is started and drives the eccentric wheel 410, the rotating wheel 420 and the grinding wheel 500 to rotate. As the eccentric wheel 410 rotates, the disengagement arc surface 411 gradually moves away from the rotating wheel 420, and the transition surface 412 gradually approaches the rotating wheel 420. The distance D between the outer peripheral surface of the eccentric wheel 410 and the outer peripheral surface of the rotating wheel 420 gradually decreases. At this time, the length of the telescopic rod 600 is R0. The eccentric wheel 410 continues to rotate until the contact arc surface 413 rotates to one side of the needle 012 of the syringe. At this time, the distance D between the outer peripheral surface of the eccentric wheel 410 and the outer peripheral surface of the rotating wheel 420 is the smallest. At this time, D = D min , and D min≤d, the outer peripheral surface of the rotating wheel 420 and the contact arc surface 413 both exert pressure on the syringe needle 012, generating frictional forces between the contact arc surface 413 and the outer surface of the needle 012 and between the outer peripheral surface of the rotating wheel 420 and the outer surface of the needle 012. Moreover, these frictional forces are directed away from the syringe barrel 011. Thus, the frictional forces exerted by the outer peripheral surface of the rotating wheel 420 and the contact arc surface 413 on the outer surface of the needle 012 can drive the movement of the needle 012. Meanwhile, the telescopic rod 600 adaptively shortens, with its length being R1, where R1 < R0. The telescopic rod 600 remains in contact with the flange 013, and the syringe barrel 011 remains stationary. Consequently, these frictional forces drive the separation of the needle 012 from the syringe barrel 011, facilitating the separate recycling of the needle 012 and the syringe barrel 011. During the entire process from the start of the movement of the needle 012 to its separation from the syringe barrel 011, the needle 012 moves towards the grinding wheel 500 and comes into contact with it. The outer peripheral surface of the grinding wheel 500 can grind the syringe needle 012, and the tip of the needle 012 is ground flat. The cover 130 prevents grinding debris from splashing out of the needle box 110. Subsequently, the needle 012 falls into the needle box 110 under the action of gravity for collection. At the same time, the telescopic rod 600 extends, and the other end of the telescopic rod 600 pushes the flange 013 to move away from the grinding wheel 500, enabling the syringe barrel 011 to be disengaged from the insertion barrel through-hole 201. The length of the telescopic rod 600 is R2, where R2 > R0. The syringe barrel 011 falls into the syringe barrel box 120 under the action of gravity for collection. The needle 012 and the syringe barrel 011 respectively land on the liquid separation plates 700 provided in the needle box 110 and the syringe barrel box 120. The disinfection lamps 800 in the needle box 110 and the syringe barrel box 120 respectively perform disinfection treatment on the needle 012 and the syringe barrel 011. The residual liquid in the needle 012 and the syringe barrel 011 can flow through the liquid separation through-holes to the lower part of the liquid separation plate 700, and the liquid below the liquid separation plate 700 can flow out through the liquid discharge hole 102. In this way, the improved medical waste classification and collection device provided by this application can simultaneously achieve the separation of the needle 012 from the syringe barrel 011 and the effect of grinding the needle tip in one operation process. The needle 012 and the syringe barrel 011 can be automatically classified and collected, the residual liquid can be centrally processed, and the needle 012 and the syringe barrel 011 can be disinfected. The entire process is continuous and automatically completed, improving the treatment efficiency of waste syringes, avoiding infection of staff, and ensuring the safety of staff.

[0123] There is a relationship of mutual cooperation and functional support among the various technical features of the present utility model, that is, the technical solution is not a "simple superposition" of the technical features between multiple comparative documents. Therefore, the present utility model does not fall under the situation of "simple superposition" in Chapter 4, Part II of the "Patent Examination Guidelines".

[0124] Although some specific embodiments of the present utility model have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and not for limiting the scope of the present utility model. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present utility model. The scope of the present utility model is defined by the appended claims.

Claims

1. An improved medical waste classification and collection device, characterized in that, Comprising: A collection box, a partition board, a separation mechanism, a grinding wheel, a telescopic rod, a liquid separation board, a disinfection lamp, and a driving mechanism, wherein, The collection box has a collection chamber; The partition board is arranged in the collection chamber along a direction perpendicular to the horizontal plane to divide the collection chamber into a needle head box and a syringe barrel box. Both the syringe barrel box and the needle head box are open-top structures. A cover body is provided at the top of the needle head box. Drainage holes are provided at the bottoms of both the needle head box and the syringe barrel box; The partition board is provided with an insertion barrel through hole for inserting the syringe barrel of the syringe, and the axis of the insertion barrel through hole is parallel to the horizontal plane; The separation mechanism includes an eccentric wheel and a rotating wheel. Both the eccentric wheel and the rotating wheel are rotatably installed on the cover body; In a direction parallel to the horizontal plane and perpendicular to the axis of the insertion barrel through hole, the eccentric wheel and the rotating wheel are relatively arranged on both sides of the needle head of the syringe; The grinding wheel is rotatably installed on the cover body. The grinding wheel is located on the side of the needle head of the syringe away from the syringe barrel, and a grinding layer is provided on the outer peripheral surface of the grinding wheel; The number of the telescopic rods is at least one. One end of the telescopic rod is connected to the partition board. A flange is provided on the outer peripheral wall of the syringe barrel of the syringe, and the other end of the telescopic rod abuts against the side of the flange close to the needle head; The liquid separation board is arranged in the needle head box and the syringe barrel box, and at least 2 liquid separation through holes are provided in the liquid separation board; The disinfection lamp is arranged in the needle head box and the syringe barrel box; The driving mechanism is installed on the cover body, and the driving mechanism drives the eccentric wheel, the rotating wheel, and the grinding wheel to rotate; The eccentric wheel and the rotating wheel rotate towards each other; The outer peripheral surface of the eccentric wheel includes a disengaging arc surface, a transition arc surface, and a contact arc surface. One end of the transition arc surface is connected to the disengaging arc surface, and the other end of the transition arc surface is connected to the contact arc surface; The distance between the contact arc surface and the eccentricity of the eccentric wheel is L, the distance between the transition arc surface and the eccentricity of the eccentric wheel is m, and the distance between the disengaging arc surface and the eccentricity of the eccentric wheel is n, wherein, L > m > n; During the rotation of the eccentric wheel, the minimum clearance between the contact arc surface and the outer peripheral surface of the rotating wheel is D min , D min ≤d, where d is the needle diameter of the syringe.

2. The improved medical waste classification and collection device according to claim 1, characterized in that, The eccentric wheel is rotatably installed on the cover body through an eccentric connecting shaft, the rotating wheel is rotatably installed on the cover body through a rotating connecting shaft, and the grinding wheel is rotatably installed on the cover body through a grinding connecting shaft; The cover body is provided with an eccentric through hole, a rotating through hole, and a grinding through hole; The eccentric connecting shaft is installed in the eccentric through hole through a rotating bearing, the rotating connecting shaft is installed in the rotating through hole through a rotating bearing, and the grinding connecting shaft is installed in the grinding through hole through a rotating bearing; The driving mechanism includes a motor, a driving gear, a driving pulley, a driven gear, a driven pulley, and a transmission belt. The motor is installed on the cover body, and the motor, the driving pulley, the driven pulley, the driven gear, and the transmission belt are all located outside the needle head box; The output shaft of the motor is connected to the rotating connecting shaft. The rotating connecting shaft is provided with the driving gear and the driving pulley. The eccentric connecting shaft is provided with the driven gear, and the driven gear meshes with the driving gear; The frosted connecting shaft is provided with a driven pulley, and the driving pulley and the driven pulley are connected by the transmission belt.

3. The improved medical waste classification and collection device according to claim 1, characterized in that, The number of the telescopic rods is at least two, and a plurality of the telescopic rods are uniformly distributed on the outer periphery of the syringe barrel in the circumferential direction.

4. The improved medical waste classification and collection device according to claim 1, wherein Silicone rubber layers are provided on the outer peripheral surface of the rotating wheel and the contact arc surface.

5. The improved medical waste classification and collection device according to claim 1, characterized in that, The range of the difference between Dmin and d is 0.05 mm to 0.01 mm.

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