Medical waste crushing device

Abstract

This invention relates to the field of medical waste treatment technology, specifically to a medical waste pulverizing device, including a pulverizing chamber containing two pulverizing rollers rotatably mounted inside, and a cleaning mechanism including a sliding rod, several scrapers, and a pushing component. The sliding rod is slidably disposed within the pulverizing chamber along the axis of the pulverizing rollers, and the several scrapers are linearly distributed and mounted on the sliding rod. The pushing component is installed within the pulverizing chamber and is used to push the sliding rod to slide, thereby causing the scrapers to extend into or out of the tooth grooves. The cleaning mechanism of this invention pushes the sliding rod to slide along the axis of the pulverizing rollers through the pushing component, thereby causing the scrapers to extend into the tooth grooves to clean the waste stuck in the tooth grooves of the pulverizing rollers, thus preventing the waste from remaining in the tooth grooves during the pulverizing process and affecting the pulverizing effect.

Description

Technical Field

[0001] This invention relates to the field of medical waste treatment technology, specifically to a medical waste pulverizing device. Background Technology

[0002] Ophthalmic medical waste refers to infectious and damaging waste generated during ophthalmic diagnosis and treatment and surgery, including disposable ophthalmic instruments, lacrimal duct probes, corneal contact lenses, ophthalmic surgical films, sterile cotton swabs, gauze, eye drop bottles, disposable syringes, eye dressings, and postoperative waste tissues. This type of waste is characterized by high infection risk, small size and easy residue, and diverse materials that are easy to adhere to. Before harmless treatment, it needs to be reduced in volume and crushed by a crushing device to improve the efficiency and safety of subsequent disinfection and disposal.

[0003] Ophthalmic medical waste shredding devices mostly adopt a crushing structure with two rollers rotating in opposite directions. The crushing roller consists of a roller body and multiple sets of crushing teeth. The crushing teeth are arranged circumferentially to form a toothed ring, and tooth grooves are formed between adjacent crushing teeth. Multiple sets of toothed rings are arranged along the axis to form an annular groove. In actual crushing, small fragments of ophthalmic instruments, sticky dressing debris, and gel-like ophthalmic waste are very easy to get stuck in the tooth grooves and annular grooves, and are difficult to fall off automatically.

[0004] The existing technology CN220547027U discloses an automatic cleaning device for an adjustable crushing roller, including a scraper frame and a scraper. The scraper includes a mounting plate and several grate bars located on the front side of the mounting plate. The grate bars are used to align with the toothed grooves on the outer periphery of the crusher roller. In actual use, the grate bars can remove the broken or sticky materials stuck in the toothed grooves, thus achieving the purpose of automatic cleaning.

[0005] The aforementioned automatic cleaning device uses a scraper that contacts the roller. During the operation of the crushing roller, it can only clean the annular groove formed by the crushing teeth, but cannot clean the tooth groove formed by the crushing teeth. If the garbage cannot be removed from the tooth groove in time, it will affect the crushing effect. As the crushing roller circulates and squeezes the garbage, the garbage attached to the tooth groove is subjected to continuous pressure, causing the garbage to adhere tightly to the surface of the crushing roller, which brings great difficulties to the subsequent cleaning work. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention proposes a medical waste shredding device to solve the technical problem that existing technologies cannot clean the grooves formed by the crushing teeth during the crushing roller process.

[0007] The technical solution adopted in this invention is a medical waste pulverizing device, comprising: A crushing box, wherein two crushing rollers are rotatably installed inside the crushing box; The cleaning mechanism includes a sliding rod, several scrapers, and a pushing component. The sliding rod is slidably disposed in the crushing box along the axis of the crushing roller. Several scrapers are linearly distributed and installed on the sliding rod. The pushing component is installed in the crushing box and is used to push the sliding rod to slide, thereby driving the scrapers to extend into or out of the tooth groove.

[0008] In a preferred embodiment, the crushing box is rotatably mounted with a swing plate coaxially arranged with the crushing roller, the sliding rod is slidably mounted on the swing plate, and an adsorption assembly is provided between the swing plate and the crushing roller.

[0009] In a preferred embodiment, the adsorption assembly includes connectors mounted on the end face of the crushing roller that correspond one-to-one with a plurality of toothed grooves, and the swing plate is equipped with adsorption elements corresponding to the connectors. The adsorption elements include a first state and a second state. When the adsorption element is in the first state, the adsorption element is adsorbed to the connecting element, and the swing plate rotates synchronously with the crushing roller. When the adsorption element is in the second state, the adsorption element is detached from the connecting element, and the swing plate remains stationary.

[0010] In a preferred embodiment, the adsorption element and the connector are magnetically connected.

[0011] In a preferred embodiment, a limiting component is provided between the swing plate and the crushing box. The limiting component is used to prevent the swing plate from rotating with the crushing roller, thereby causing the adsorption component to detach from the connecting component.

[0012] In a preferred embodiment, the limiting assembly includes a movable plate fixed to the swing plate, and a fixed plate that matches the position of the movable plate is fixed to the side wall of the crushing box.

[0013] In a preferred embodiment, a first elastic element is provided between the movable plate and the fixed plate.

[0014] In a preferred embodiment, a second elastic element is provided between the sliding rod and the swing plate; The pushing component includes an abutment plate, and the side wall of the crushing box is provided with a storage groove located on the movement trajectory of the sliding rod. The abutment plate is elastically hinged and installed in the storage groove, and the abutment plate is in an inclined state.

[0015] In a preferred embodiment, the shape of the scraper matches the shape of the tooth groove.

[0016] As can be seen from the above technical solution, the beneficial technical effects of the present invention are as follows: 1. The cleaning mechanism of the present invention pushes the sliding rod along the axis of the crushing roller by pushing the pushing component, thereby driving the scraper to extend into the tooth groove to clean up the small ophthalmic instruments, sticky dressings and other debris stuck in the tooth groove of the crushing roller, so as to avoid the situation where the debris remains in the tooth groove during the crushing roller process and affects the crushing effect.

[0017] 2. This invention utilizes the adsorption effect of the adsorption component and the connecting component. The swing plate performs periodic reciprocating motion during the continuous rotation of the crushing roller. That is, it follows the crushing roller to rotate a certain angle and then resets. This cycle allows the scraper assembly to continuously and effectively clean each tooth groove on the crushing roller, avoiding the occurrence of cleaning dead corners, ensuring the surface of the crushing roller is clean, and improving the crushing effect.

[0018] 3. The shape of the scraper in this invention matches the shape of the tooth groove, which can better fit the tooth groove, improve the cleaning effect, and ensure that the garbage in the tooth groove is completely removed. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a schematic diagram of an embodiment of a medical waste pulverizing device according to the present invention; Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of a medical waste pulverizing device according to the present invention; Figure 3 for Figure 2 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram of the structure of the crushing roller and cleaning mechanism of the present invention; Figure 5 for Figure 4 Enlarged structural diagram at point B; Figure 6 This is a side view of the structure of the crushing roller and cleaning mechanism of the present invention; Figure 7 for Figure 6 Enlarged structural diagram at point C; Figure 8 This is a schematic diagram of the overall structure of the cleaning mechanism of the present invention; Figure 9 This is a schematic diagram of the structure of the pushing component of the present invention.

[0021] Figure label: Crushing box 1, crushing roller 2, connecting piece 21, sliding rod 3, scraper 31, second elastic element 32, abutting plate 33, storage groove 34, swing plate 4, sleeve 401, adsorption element 41, movable plate 42, fixed plate 43, first elastic element 44, shell 5, slider 51. Detailed Implementation

[0022] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0023] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0024] Example: like Figure 1-9 As shown, this embodiment provides a medical waste shredding device, including: Crushing box 1, with two crushing rollers 2 rotatably installed inside crushing box 1; The cleaning mechanism includes a sliding rod 3, several scrapers 31, and a pushing component. The sliding rod 3 is slidably disposed in the crushing box 1 along the axial direction of the crushing roller 2. Several scrapers 31 are linearly distributed and installed on the sliding rod 3. The pushing component is installed in the crushing box 1 to push the sliding rod 3 to slide, thereby driving the scrapers 31 to extend into or out of the tooth groove.

[0025] The opening at the top of the crushing box 1 is used to put medical waste between the two crushing rollers 2. A motor is also installed on the front side of the crushing box 1 to drive the crushing rollers 2 to rotate. The motor is electrically connected to an external power source.

[0026] The crushing roller consists of a roller body and several crushing teeth. The crushing teeth are arranged circumferentially along the roller body to form multiple tooth rings. The tooth grooves are formed between adjacent crushing teeth arranged circumferentially along the roller body. The multiple tooth rings are linearly distributed along the roller body axis. The annular grooves are formed between adjacent tooth rings linearly distributed along the roller body axis. The setting of the crushing roller 2 is a conventional technical means in the prior art, so it will not be described in detail.

[0027] In actual use, the motor drives two crushing rollers 2 to rotate relative to each other. Medical waste is put between the two crushing rollers 2 and several crushing teeth are used to squeeze and crush the medical waste. The crushed waste is discharged from the outlet below the crushing rollers. During the crushing process, the groove formed by two adjacent crushing teeth is prone to leaving debris or sticky waste. If it is not cleaned in time, it will not only affect the crushing effect, but may also breed bacteria and produce odor.

[0028] This application uses a pushing component to push the sliding rod 3 to slide, causing several scrapers 31 to extend from the annular groove into the tooth groove to clean the waste in the tooth groove, thereby improving the working efficiency and hygiene level of the entire medical waste shredding device.

[0029] When some scrapers 31 are not inserted into the tooth groove, they are located in the annular groove formed between adjacent tooth rings and will not affect the operation of the crushing roller 2.

[0030] The crushing box 1 is rotatably mounted with a swing plate 4 coaxially arranged with the crushing roller 2, and the sliding rod 3 is slidably mounted on the swing plate 4. An adsorption component is provided between the swing plate 4 and the crushing roller 2.

[0031] The adsorption assembly includes a connector 21 mounted on the end face of the crushing roller 2, which corresponds one-to-one with a plurality of tooth grooves, and an adsorption component 41 mounted on the swing plate 4, which corresponds to the connector 21. The adsorption component 41 includes a first state and a second state: When the adsorption element 41 is in the first state, the adsorption element 41 adsorbs with the connecting element 21, and the swing plate 4 rotates synchronously with the crushing roller 2. When the adsorption member 41 is in the second state, the adsorption member 41 is disengaged from the connector 21, and the swing plate 4 remains stationary.

[0032] In actual use, the adsorption of the adsorption component 41 and the connecting component 21 enables the swing plate 4 to rotate synchronously with the crushing roller 2, thereby driving the sliding rod 3 and the scraper 31 to rotate synchronously with the crushing roller 2. At this time, the position of the scraper 31 is aligned with the position of the tooth groove. During the following process, the scraper 31 pushes the component into the tooth groove to clean the garbage in the tooth groove.

[0033] After the adsorption element 41 is separated from the connector 21, the swing plate 4 can remain stationary.

[0034] The adsorption element 41 and the connector 21 are magnetically connected.

[0035] Preferably, the connector 21 is an iron block and the adsorption component 41 is a magnetic block. When the crushing roller 2 rotates, the connector 21 and the adsorption component 41 are aligned and adsorbed by magnetic force, thereby driving the swing plate 4 to rotate synchronously with the crushing roller 2 to achieve automatic following without the need for additional power.

[0036] Preferably, the connector 21 is an iron block and the adsorption component 41 is an electromagnet. That is, the adsorption component 41 generates magnetic force when it is energized and does not have magnetic force when it is not energized. By controlling the energization state of the electromagnet, the timing of the synchronous rotation of the swing plate 4 and the crushing roller 2 can be controlled more flexibly. For example, when it is necessary to clean the tooth groove, the adsorption component generates magnetic force, and the power is cut off when cleaning is not required or when the device is started or stopped. This reduces unnecessary energy loss and unnecessary friction between components, and further improves the stability and energy saving of the device operation.

[0037] The housing 1 is rotatably mounted with a sleeve 401 sleeved on the outside of the rotating shaft of the crushing roller 2, and the swing plate 4 is connected to the sleeve 401.

[0038] Preferably, there are two sleeves 401, distributed at the front and rear ends of the crushing roller 2, and two swing plates 4, which are connected to the two sleeves 401 respectively. The sliding rod 3 is slidably installed between the two swing plates 4, which can provide stable support for the scraper 31.

[0039] A limiting component is provided between the swing plate 4 and the crushing box 1. The limiting component is used to block the swing plate 4, so that the adsorption component 41 is separated from the connecting component 21.

[0040] The limiting assembly includes a movable plate 42 fixed to the swing plate 4, and a fixed plate 43 that matches the position of the movable plate 42 is fixed to the side wall of the crushing box 1.

[0041] A first elastic element 44 is provided between the movable plate 42 and the fixed plate 43.

[0042] Preferably, the first elastic element 44 is a spring.

[0043] In the initial state, the swing plate 4 is in a vertically downward position, and the adsorption member 41 is adsorbed by the connector 21, so that the swing plate 4 remains stationary.

[0044] After the adsorption member 41 and the connecting member 21 are adsorbed, the movable plate 42 moves synchronously with the swing plate 4, which will compress the first elastic member 44. Due to the obstruction of the fixed plate 43, after the first elastic member 44 is compressed to the limit, the swing plate 4 can no longer move synchronously with the crushing roller 2. The crushing roller 2 will continue to rotate despite the attraction force of the magnet. Then the adsorption member 41 will disengage from the connecting member 21. Under the elastic force of the first elastic member 44, the swing plate 4 will be pushed to reset and return to its initial state until the next connecting member 21 and the adsorption member 41 are adsorbed together. During the synchronous rotation of the swing plate 4 and the crushing roller 2, the sliding rod 3 is pushed by the pushing component, which enables the scraper 41 to clean the tooth groove. Through the above components, the swing plate 4 will perform periodic reciprocating motion during the continuous rotation of the crushing roller 2, that is, it will follow the crushing roller to rotate a certain angle and then reset. This cycle allows the scraper 31 to continuously and effectively clean each tooth groove on the crushing roller 2, avoiding cleaning dead corners. Therefore, this device can automatically clean up the debris stuck in each tooth groove without stopping the machine, improving work efficiency, reducing equipment failures and maintenance caused by debris residue, extending the service life of the equipment, and reducing operating costs.

[0045] A second elastic element 32 is provided between the sliding rod 3 and the swing plate 4; the swing plate 4 is equipped with a housing 5, the sliding rod 3 is fixed with a slider 51 that slides inside the housing 5, and the second elastic element 32 is installed between the slider 51 and the side wall of the housing 5.

[0046] The pushing component includes an abutment plate 33. The side wall of the crushing box 1 is provided with a storage groove 34 located on the movement trajectory of the sliding rod 3. The abutment plate 33 is elastically hinged and installed in the storage groove 34. The abutment plate 33 is in an inclined state.

[0047] refer to Figure 3 and Figure 9 As shown, the elastic hinge is provided with a torsion spring at the hinge point so that the abutment plate 33 can be in an inclined state when it is not subjected to external force. Specifically, the inclined state is towards the center of the crushing box 1. At this time, the abutment plate 33 is blocked by the end of the receiving groove 34 away from the sliding rod 3 and cannot rotate to the end away from the sliding rod 3, but can rotate along the end close to the sliding rod 3. When the swing plate 4 rotates with the crushing roller 2, the sliding rod 3 will abut against the inclined abutment plate 33 during the movement, pushing the sliding rod 3 to slide along the axis of the crushing roller 2, so that the scraper 31 enters the tooth groove and cleans out the garbage in the tooth groove. When the sliding rod 3 leaves the end of the abutment plate 33, the elastic force of the second elastic element 32 will push the sliding rod 3 to reset, that is, the scraper 31 enters the annular groove. When the swing plate 4 resets, that is, after the connector 21 disengages from the adsorption member 41, the first elastic member 44 pushes the swing plate 4 to move in the opposite direction to reset. At this time, the side wall of the sliding rod 3 contacts the end of the abutment plate 33, pushing the abutment plate 33 to flip and enter the receiving groove 34. The end of the sliding rod 3 slides along the surface of the abutment plate 33 that is attached to the receiving groove 34 until it returns to its initial position. With this design, the sliding rod 3 will not slide during the reset process, and the scraper 31 will always be located in the annular groove, ensuring the normal operation of the device. The spring force of the torsion spring in the elastic hinge is less than the spring force of the second elastic element 32. During the reset process, when the end of the sliding rod 3 slides along the surface of the abutment plate 33, the abutment plate 33 cannot push the sliding rod 3 to move. After the end of the sliding rod 3 leaves the abutment plate 33, the spring force of the torsion spring pushes the abutment plate 33 to reset, so that it abuts against the end of the storage groove 34 and is in an inclined state. This design allows the sliding rod 3 to slide back and forth once while following the rotation of the crushing roller 2, during which the scraper 31 slides back and forth once to extend into the tooth groove for cleaning. During the reset process of the sliding rod 3, the sliding rod 3 will not slide back and forth, allowing the scraper 31 to reset along the annular groove.

[0048] The end of the scraper 31 can abut against the side wall of the annular groove to clean the garbage attached to the side wall of the annular groove.

[0049] The shape of the scraper 31 matches the shape of the tooth groove. This design allows the scraper 31 to better fit the tooth groove, improve the cleaning effect, and ensure that the debris in the tooth groove is completely removed.

[0050] The working principle of the embodiments is explained in detail below: Start the motor, and the motor will drive the two crushing rollers 2 to rotate relative to each other.

[0051] Medical waste is fed into the space between two crushing rollers 2 through the opening at the top of the crushing box 1. The crushing teeth 21 are used to squeeze and crush the medical waste, and the crushed waste is discharged from the outlet below the crushing rollers.

[0052] During the crushing process, when the crushing roller 2 rotates and aligns one of the connecting parts 21 with the adsorption part 41, the adsorption part 41 and the connecting part 21 adsorb each other. The swing plate 4 rotates synchronously with the crushing roller 2, and the movable plate 42 compresses the first elastic part 44. At the same time, the sliding rod 3 rotates with the swing plate 4 and abuts against the inclined abutment plate 33, pushing the sliding rod 3 to slide along the axis of the crushing roller 2, driving the scraper 31 to extend into the tooth groove and clean out the garbage in the tooth groove. Then, the end of the sliding rod 3 will leave the end of the abutment plate 33, and the elastic force of the second elastic part 32 will push the sliding rod 3 to reset, and the scraper 31 will enter the annular groove. During this process, the second elastic part 32 is compressed.

[0053] Due to the obstruction of the fixed plate 43, when the first elastic element 44 is compressed to its limit, the swing plate 4 can no longer rotate synchronously with the crushing roller 2. The crushing roller 2 continues to rotate despite the attraction force of the magnet. The adsorption element 41 will disengage from the connecting element 21. Under the elastic force of the first elastic element 44, the swing plate 4 begins to rotate in the opposite direction to reset. When the swing plate 4 rotates in the opposite direction to reset, the side wall of the sliding rod 3 contacts the end of the abutment plate 33, pushing the abutment plate 33 to flip and enter the storage groove 34. The end of the sliding rod 3 slides along the abutment plate 33 that is attached to the storage groove 34, returning to the initial state, waiting for the next connector 21 to be adsorbed by the adsorbent 41, and starting the next cleaning cycle.

[0054] This device can automatically clean the tooth grooves during the rotation of the crushing roller without manual intervention, which improves cleaning efficiency and ensures crushing effect.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A medical waste pulverizing device, characterized in that, include: Crushing box (1), wherein two crushing rollers (2) are rotatably installed inside the crushing box (1); The cleaning mechanism includes a sliding rod (3), several scrapers (31) and a pushing component. The sliding rod (3) is slidably disposed in the crushing box (1) along the axis of the crushing roller (2). Several scrapers (31) are linearly distributed and installed on the sliding rod (3). The pushing component is installed in the crushing box (1) and is used to push the sliding rod (3) to slide, thereby driving the scrapers (31) to extend into or out of the tooth groove.

2. The medical waste pulverizing device according to claim 1, characterized in that, The crushing box (1) is rotatably mounted with a swing plate (4) coaxially arranged with the crushing roller (2), and the sliding rod (3) is slidably mounted on the swing plate (4). An adsorption component is provided between the swing plate (4) and the crushing roller (2).

3. The medical waste pulverizing device according to claim 2, characterized in that, The adsorption assembly includes several connectors (21) mounted on the end face of the crushing roller (2), with each connector (21) corresponding to a certain tooth groove. The swing plate (4) is equipped with an adsorption element (41) corresponding to the connector (21), and the adsorption element (41) includes a first state and a second state: When the adsorption element (41) is in the first state, the adsorption element (41) adsorbs with the connecting element (21), and the swing plate (4) rotates synchronously with the crushing roller (2); When the adsorption element (41) is in the second state, the adsorption element (41) is disengaged from the connector (21), and the swing plate (4) remains stationary.

4. A medical waste pulverizing device according to claim 3, characterized in that, The adsorption element (41) and the connector (21) are magnetically connected.

5. A medical waste pulverizing device according to claim 4, characterized in that, A limiting component is provided between the swing plate (4) and the crushing box (1). The limiting component is used to prevent the swing plate (4) from rotating with the crushing roller (2), so that the adsorption component (41) is separated from the connecting component (21).

6. A medical waste pulverizing device according to claim 5, characterized in that, The limiting assembly includes a movable plate (42) fixed by a swing plate (4), and a fixed plate (43) that matches the position of the movable plate (42) is fixed on the side wall of the crushing box (1).

7. A medical waste pulverizing device according to claim 6, characterized in that, A first elastic element (44) is provided between the movable plate (42) and the fixed plate (43).

8. A medical waste pulverizing device according to claim 7, characterized in that, A second elastic element (32) is provided between the sliding rod (3) and the swing plate (4); The pushing component includes an abutment plate (33), and the side wall of the crushing box (1) is provided with a storage groove (34) located on the movement trajectory of the sliding rod (3). The abutment plate (33) is elastically hinged and installed in the storage groove (34). The abutment plate (33) is in an inclined state.

9. A medical waste pulverizing device according to claim 8, characterized in that, The shape of the scraper (31) matches the shape of the tooth groove.

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