Medical waste plastic crushing device

Abstract

The utility model relates to the technical field of medical waste treatment, and discloses a medical waste plastic crushing device which comprises crushing rollers I symmetrically and fixedly connected to the outer side wall of a rotating shaft; the inclined plates are symmetrically and fixedly connected to the inner side wall of the crushing box; the second smashing roller is fixedly connected to the exterior of the rotating rod and located in the middle of the inclined plate; the convex teeth are symmetrically and fixedly connected to one side, close to the crushing roller II, of the inclined plate; and the driving mechanism is arranged on the crushing box and the rotating shaft. Plastic medical waste is poured into the smashing box from the feeding port, the first motor and the second motor are started, the second smashing roller rotates, the first smashing roller rotates, the medical waste falling from the feeding port is smashed when the first smashing roller rotates, and the smashed medical waste falls onto the second smashing roller below; and the rotating crushing roller II rotates to be matched with convex teeth on an inclined plate, so that the medical wastes are crushed again under the extrusion and shearing actions of the crushing roller II and the inclined plate.

Description

Technical Field

[0001] This utility model relates to the field of medical waste treatment technology, specifically a medical waste plastic crushing device. Background Technology

[0002] Medical waste, also known as medical waste, refers to contaminated waste produced by hospitals that has come into contact with patients' blood, flesh, etc., such as used cotton balls, gauze, adhesive tape, wastewater, disposable medical instruments, postoperative waste, expired medicines, etc. If medical waste that is not treated or is not thoroughly treated is piled up at will, it will easily cause pollution to water bodies, soil and air, and cause direct or indirect harm to human health. It may also become a source of disease outbreaks. Plastic waste accounts for a considerable proportion of medical waste. In the process of treatment, it is sometimes necessary to crush it first before proceeding to the next step to reduce the difficulty of waste disposal.

[0003] Existing crushing equipment typically crushes plastic medical waste only once. This single crushing process results in only a small reduction in the volume of the medical waste, which can easily clog the discharge port and hinder subsequent storage, transportation, and disposal, potentially increasing processing costs. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a medical waste plastic pulverizing device, which has the advantage of enhanced pulverizing effect. It solves the problem that existing pulverizing devices pulverize medical waste only once, resulting in insignificant reduction in the volume of medical waste, easy clogging of the discharge port, and difficulties in subsequent processing.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a medical waste plastic crushing device, comprising a main body component, wherein the main body component includes:

[0008] The crushing chamber has a feed inlet at the top;

[0009] The grinding chamber is equipped with a grinding component, which includes:

[0010] A rotating shaft is symmetrically and rotatably connected to the inner side wall of the crushing chamber, and the rear end of the rotating shaft extends through and out of the crushing chamber.

[0011] One crushing roller is symmetrically and fixedly connected to the outer wall of the rotating shaft;

[0012] Inclined plates, symmetrically and fixedly connected to the inner sidewall of the crushing chamber;

[0013] A rotating rod is rotatably connected to the inner side wall of the crushing chamber, and the rear end of the rotating rod extends through and out of the crushing chamber.

[0014] Crushing roller 2 is fixedly connected to the outside of the rotating rod, and the crushing roller 2 is located in the middle of the inclined plate;

[0015] The protruding teeth are symmetrically and fixedly connected to the inclined plate on the side near the second crushing roller;

[0016] Motor 1 is located on the rear side wall of the crushing box, and the output shaft of Motor 1 is fixedly connected to the rear end of the rotating rod.

[0017] A drive mechanism is provided on the crushing chamber and the rotating shaft.

[0018] Preferably, the drive mechanism includes:

[0019] The base plate is fixedly connected to the rear side wall of the crushing box;

[0020] Motor 2 is mounted on the top of the base plate and is fixedly connected to the rear end of the rotating shaft.

[0021] Gear 1 is fixedly connected to the rear end of the aforementioned rotating shaft;

[0022] Gear 2 is fixedly connected to the rear end of the shaft at another location, and gear 1 meshes with gear 2.

[0023] Preferably, a guide plate is fixedly connected to the inner side wall of the crushing box.

[0024] Preferably, a pressing assembly is provided on the top of the crushing chamber, the pressing assembly comprising:

[0025] The support frame is fixedly connected to the top of the crushing box;

[0026] An electric actuator is mounted on the bracket;

[0027] A pressure plate is fixedly connected to the bottom output shaft of the electric push rod, which is located above the feed inlet.

[0028] Preferably, the inner sidewall of the crushing box is symmetrically and fixedly connected with scraper plates, and the toothed shape of the scraper plates meshes with the crushing roller.

[0029] Preferably, the inclined plate is provided with a wear-resistant lining plate on the outside.

[0030] (III) Beneficial Effects

[0031] Compared with the prior art, the present invention provides a medical waste plastic pulverizing device, which has the following beneficial effects:

[0032] This pulverizing device boasts enhanced pulverizing efficiency. Plastic medical waste is poured into the pulverizing chamber through the feed inlet, and motors one and two are activated, causing pulverizing roller two to rotate alongside pulverizing roller one. As pulverizing roller one rotates, it pulverizes the medical waste falling from the feed inlet. The pulverized medical waste falls onto pulverizing roller two below. The rotating pulverizing roller two engages with the protruding teeth on the inclined plate, subjecting the medical waste to compression and shearing action from both roller two and the inclined plate, resulting in further pulverization. The pulverized medical waste from both locations exits through the bottom. This solves the problem of existing pulverizing devices pulverizing medical waste only once, leading to insufficient volume reduction, easy clogging of the discharge port, and difficulties in subsequent processing. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of this utility model;

[0034] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0035] Figure 3 This is a frontal cross-sectional view of the present invention.

[0036] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0037] Figure 5 This is a schematic diagram of the scraper structure in this utility model.

[0038] In the picture:

[0039] 1. Main components; 11. Crushing box; 12. Feed inlet;

[0040] 2. Crushing assembly; 21. Rotating shaft; 22. Crushing roller one; 23. Inclined plate; 231. Convex tooth; 24. Rotating rod; 25. Crushing roller two; 26. Motor one; 27. Drive mechanism; 271. Base plate; 272. Motor two; 273. Gear one; 274. Gear two;

[0041] 3. Pressing assembly; 31. Bracket; 32. Electric push rod; 33. Pressing plate; 4. Guide plate; 5. Scraper; 6. Wear-resistant liner. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] Example 1

[0044] See Figure 1-5 A medical waste plastic pulverizing device includes a main component 1, which includes: a pulverizing box 11 with a feed inlet 12 at its top; a pulverizing assembly 2 on the pulverizing box 11, the pulverizing assembly 2 including: a rotating shaft 21 symmetrically and rotatably connected to the inner wall of the pulverizing box 11, the rear end of the rotating shaft 21 extending through and to the outside of the pulverizing box 11; a pulverizing roller 22 symmetrically and fixedly connected to the outer wall of the rotating shaft 21; an inclined plate 23 symmetrically and fixedly connected to the inner wall of the pulverizing box 11; and a rotating rod 24 for rotation. A rotating rod 24 is connected to the inner wall of the crushing box 11, with its rear end extending through and to the outside of the crushing box 11; a second crushing roller 25 is fixedly connected to the outside of the rotating rod 24, and the second crushing roller 25 is located in the middle of the inclined plate 23; a tooth 231 is symmetrically and fixedly connected to the side of the inclined plate 23 near the second crushing roller 25; a motor 26 is disposed on the rear wall of the crushing box 11, and the output shaft of the motor 26 is fixedly connected to the rear end of the rotating rod 24; a drive mechanism 27 is disposed on the crushing box 11 and the rotating shaft 21. The drive mechanism 27 includes: a base plate 271, fixedly connected to the rear side wall of the crushing box 11; a second motor 272, disposed on the top of the base plate 271, the second motor 272 being fixedly connected to the rear end of one of the rotating shafts 21; a first gear 273, fixedly connected to the rear end of one of the rotating shafts 21; and a second gear 274, fixedly connected to the rear end of another rotating shaft 21, the first gear 273 meshing with the second gear 274. A guide plate 4 is fixedly connected to the inner side wall of the crushing box 11.

[0045] During use, the operator pours plastic medical waste into the crushing box 11 through the feed inlet 12 and starts motor 1 26 and motor 272. Motor 1 26 drives crushing roller 25 to rotate through rotating rod 24. The drive mechanism 27 drives the two crushing rollers 1 22 to rotate in opposite directions. After motor 2 272 starts, it drives the rotating shaft 21 equipped with gear 1 273 to rotate counterclockwise. Since gear 2 274 rotates with gear 1 273, gear 2 274 drives the other rotating shaft 21 to rotate clockwise, thus achieving the effect of the two crushing rollers 1 22 rotating in opposite directions. When crushing roller 1 22 rotates, it crushes the medical waste falling from the feed inlet 12. The crushed medical waste falls onto crushing roller 2 25 below. The rotating crushing roller 2 25 rotates and cooperates with the protruding teeth 231 on the inclined plate 23, so that the medical waste is squeezed and sheared by crushing roller 2 25 and inclined plate 23, and crushed again. The crushed medical waste from both places is discharged through the bottom.

[0046] The medical waste pulverized by the first pulverizer roller 22 is guided by the guide plate 4 to both sides of the second pulverizer roller 25. This ensures that the medical waste is precisely guided to the parts of the second pulverizer roller 25 that contact the inclined plate 23, preventing excessive local stress on the second pulverizer roller 25. If the medical waste enters the pulverizing area irregularly, it may cause the pressure on one side of the second pulverizer roller 25 to be much greater than that on other parts. Over time, this will cause uneven wear on the second pulverizer roller 25. The guide plate 4 helps to improve the service life of the second pulverizer roller 25.

[0047] Example 2

[0048] An auxiliary function has been added based on Embodiment 1.

[0049] See Figure 1-5 The crushing chamber 11 is equipped with a pressing assembly 3 at its top. The pressing assembly 3 includes: a bracket 31, fixedly connected to the top of the crushing chamber 11; an electric push rod 32, mounted on the bracket 31; and a pressure plate 33, fixedly connected to the bottom output shaft of the electric push rod 32, which is located above the feed inlet 12. Scraper plates 5 are symmetrically and fixedly connected to the inner wall of the crushing chamber 11, and the teeth of the scraper plates 5 mesh with the crushing roller 22. A wear-resistant liner 6 is provided on the outside of the inclined plate 23.

[0050] When the pulverizing roller 22 crushes cylindrical or spherical medical waste, such as syringes or plastic medicine bottles, the curved and smooth medical waste can easily slip on the pulverizing roller 22, affecting normal pulverizing efficiency. At this time, the operator uses the pressing assembly 3 to press the curved medical waste downwards: the operator activates the electric push rod 32, which drives the pressure plate 33 to extend downwards, pressing the medical waste downwards. This makes it easier for the medical waste to contact the pulverizing teeth on the pulverizing roller 22, avoiding affecting the pulverizing speed. This eliminates the need for manual pressing and improves operational safety. When the pulverizing roller 22 rotates, the scraper 5, which meshes with the teeth of the pulverizing roller 22, guides the flow direction of the medical waste, preventing it from accumulating randomly or clogging between the teeth, thus reducing the possibility of jamming. The inclined plate 23 is subjected to strong impact and friction from the medical waste during the pulverizing process, making it prone to wear. Installing a wear-resistant liner 6 protects the inclined plate 23 and extends its service life. Wear-resistant liners 6 are typically made of high-hardness, high-wear-resistance materials, such as manganese steel and chromium alloys.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A medical waste plastic crushing device, comprising a main body assembly (1), the main body assembly (1) comprising: a crushing box (11) provided with a feeding port (12) at the top; characterized in that: a crushing assembly (2) is arranged on the crushing box (11), the crushing assembly (2) comprising: a rotating shaft (21) symmetrically and rotatably connected to the inner side wall of the crushing box (11), the rear end of the rotating shaft (21) penetrating and extending to the outside of the crushing box (11); a crushing roller one (22) symmetrically and fixedly connected to the outer side wall of the rotating shaft (21); an inclined plate (23) symmetrically and fixedly connected to the inner side wall of the crushing box (11); a rotating rod (24) rotatably connected to the inner side wall of the crushing box (11), the rear end of the rotating rod (24) penetrating and extending to the outside of the crushing box (11); a crushing roller two (25) fixedly connected to the outside of the rotating rod (24), the crushing roller two (25) being located at the middle part of the inclined plate (23); a convex tooth (231) symmetrically and fixedly connected to one side of the inclined plate (23) close to the crushing roller two (25); a motor one (26) arranged on the rear side wall of the crushing box (11), the output shaft of the motor one (26) being fixedly connected to the rear end of the rotating rod (24); a drive mechanism (27) arranged on the crushing box (11) and the rotating shaft (21).

2. The medical waste plastic shredding device of claim 1, wherein: The drive mechanism (27) comprises: a bottom plate (271) fixedly connected to the rear side wall of the crushing box (11); a motor two (272) arranged on the top of the bottom plate (271), the motor two (272) being fixedly connected to the rear end of the rotating shaft (21) at one place; a gear one (273) fixedly connected to the rear end of the rotating shaft (21) at one place; a gear two (274) fixedly connected to the rear end of the rotating shaft (21) at another place, the gear one (273) being engaged with the gear two (274).

3. The medical waste plastic shredding device of claim 2, wherein: The inner side wall of the crushing box (11) is fixedly connected with a material guide plate (4).

4. The medical waste plastic shredding device of claim 2, wherein: The top of the crushing box (11) is provided with a material pressing assembly (3), the material pressing assembly (3) comprising: a support (31) fixedly connected to the top of the crushing box (11); an electric push rod (32) arranged on the support (31); a pressing plate (33) fixedly connected to the output shaft at the bottom of the electric push rod (32), the electric push rod (32) being located above the feeding port (12).

5. A medical waste plastic shredding device as claimed in claim 4, wherein: The inner side wall of the crushing box (11) is symmetrically and fixedly connected with a material scraping plate (5), the tooth shape of the material scraping plate (5) being engaged with the crushing roller one (22).

6. The medical waste plastic shredding device of claim 5, wherein: The outer part of the inclined plate (23) is provided with a wear-resistant lining plate (6).

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