Medicament injection waste disposal device

Abstract

The application discloses a medicine injection waste treatment device, and belongs to the technical field of medical devices.The device comprises a base frame, a fan-shaped shell movably arranged on the base frame, an agitating assembly and a squeezing assembly arranged on the fan-shaped shell, and the screening strip and the semicircular strip are arranged to screen the waste after being squeezed and crushed, thereby improving the treatment effect.The limiting plate and the tension spring are arranged to ensure that the agitating rod remains stable during the working process, prevent the components from being displaced or failing due to the resistance of the waste, and improve the reliability and durability of the device.The agitating assembly and the squeezing assembly are cooperated with each other to repeatedly squeeze and crush and agitate the medicine injection waste, ensure that the waste is fully crushed, and increase the surface area of the waste after being crushed into small particles, so that the waste is heated more uniformly during high-temperature disinfection and sterilization, and harmful microorganisms in the waste can be more completely killed, so that the treated waste meets the hygiene standard.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a device for treating pharmaceutical injection waste. Background Technology

[0002] In the medical field, the disposal of pharmaceutical injection waste has always been a significant environmental and safety issue. This waste primarily includes used glass bottles, needles, and plastic products. Glass bottles, in particular, are fragile and have sharp edges; improper disposal can not only pollute the environment but also potentially injure operators. Traditional methods typically involve incineration or landfill, but these methods have significant drawbacks: incineration may produce harmful gases, while landfill is ineffective at treating non-biodegradable materials like glass bottles and poses a risk of secondary pollution. While existing treatment methods can handle some medical waste, they are often ineffective when dealing with glass bottles. Glass bottles easily break into sharp fragments that traditional crushing equipment struggles to completely pulverize, and the resulting fragments are uneven in size, affecting subsequent high-temperature sterilization. Furthermore, existing equipment has a low level of automation, requiring significant manual intervention during processing, increasing the health and safety risks for operators. Therefore, this invention provides a pharmaceutical injection waste treatment device. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies by providing a pharmaceutical injection waste treatment device. It overcomes the problems of uneven particle size after crushing, which affects the subsequent high-temperature sterilization effect, low automation, and the need for a large amount of manual intervention during the treatment process, which increases the health and safety risks of operators.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a pharmaceutical injection waste treatment device, comprising a base frame, a fan-shaped shell movably mounted on the base frame, a fan-shaped cover plate slidably mounted on the fan-shaped shell, a stirring assembly and a squeezing assembly mounted on the fan-shaped shell, the stirring assembly comprising a circular rotating plate and an annular rotating plate, three stirring rods 1 slidably mounted in a circumferential array on the circular rotating plate, and three stirring rods 2 slidably mounted in a circumferential array on the annular rotating plate, the stirring rods 1 and 2 being used to stir the inside of the fan-shaped shell and the fan-shaped cover plate, the squeezing assembly comprising a squeezing circular plate and two arc-shaped long plates, the two arc-shaped long plates being symmetrically slidably mounted on the fan-shaped shell, each arc-shaped long plate being fixedly provided with a semi-circular strip plate, and multiple screening strips being uniformly fixedly provided on the semi-circular strip plates, the screening strips on the two semi-circular strip plates being spaced apart, and when the two semi-circular strip plates are fully joined, a complete circular squeezing plate is formed.

[0005] Furthermore, a transposition base is rotatably mounted on the base frame, and a sector-shaped housing is fixedly mounted on the transposition base. When the sector-shaped cover plate and the sector-shaped housing are joined, a complete cylinder is formed between the sector-shaped cover plate, the sector-shaped housing, and the arc-shaped long plate. A sector-shaped heating plate is fixedly mounted on both the sector-shaped housing and the sector-shaped cover plate.

[0006] Furthermore, a circular rotating plate is rotatably mounted on the upper surface of the fan-shaped housing, and an annular sliding plate is slidably mounted on the circular rotating plate. A tension spring is provided between the annular sliding plate and the circular rotating plate, and the ends of the three stirring rods are all fixedly connected to the annular sliding plate.

[0007] Furthermore, a support ring plate and a circular base plate are provided on the lower end face of the sector-shaped shell. The support ring plate and the sector-shaped shell are fixedly connected. Three U-shaped fixing plates are arranged in a circumferential array between the support ring plate and the circular base plate. The support ring plate and the circular base plate are fixedly connected by the U-shaped fixing plates. An annular rotating plate is arranged between the support ring plate and the circular base plate. The annular rotating plate is rotatably connected to the support ring plate and the circular base plate. An annular sliding plate is slidably installed on the annular rotating plate. The ends of the stirring rods are fixedly connected to the annular sliding plate. A tension spring is provided between the annular rotating plate and the annular sliding plate.

[0008] Furthermore, the extrusion disc is slidably installed inside the sector-shaped housing, and the extrusion disc and the circular rotating plate are slidably fitted together. An extrusion screw is fixedly installed on the extrusion disc, and an extrusion pulley is rotatably installed on the circular rotating plate. The extrusion pulley and the extrusion screw form a helical pair, and the stirring rod is slidably fitted with the extrusion disc.

[0009] Furthermore, two adjusting screws are rotatably mounted on the sector-shaped housing. The adjusting screws form a helical pair with the corresponding arc-shaped long plates. A limit plate is fixedly installed on one of the two arc-shaped long plates. The limit plate is used to limit the position of the annular slide plate.

[0010] Furthermore, an adjusting gear ring is rotatably mounted on the outer side of the sector-shaped housing. A sector-shaped rack and a sector-shaped plate are fixedly mounted on the adjusting gear ring. Adjusting gears are fixedly mounted on the ends of the adjusting screws. When the adjusting gears and the sector-shaped racks are engaged, they form a gear and rack pair. Limiting blocks are fixedly mounted on the adjusting gears. Arc-shaped grooves that cooperate with the sector-shaped plates are provided on the limiting blocks.

[0011] Furthermore, under the action of the sector rack and sector plate, when the sector rack and the adjusting gear engage, the limiting block corresponding to the adjusting gear disengages from the sector plate.

[0012] Furthermore, under the action of tension spring one and tension spring two, the lower end face of stirring rod one is always in contact with the upper surface of the circular extrusion plate, and the upper end face of stirring rod two is always in contact with the lower surface of the circular extrusion plate.

[0013] The beneficial effects of this invention compared with the prior art are as follows: (1) By setting screening plates and semi-circular plates, this invention can screen waste after crushing and extrusion, ensuring that qualified waste particles are separated and unqualified particles are further processed, thus improving the processing effect. (2) By setting limit plates and tension springs, this invention ensures that the stirring rod remains stable during operation, preventing component displacement or failure due to the resistance of waste, thus improving the reliability and durability of the device. (3) Through the cooperation of the stirring component and the extrusion component, this invention can repeatedly crush and agitate pharmaceutical injection waste, ensuring that the waste is fully crushed and improving the processing efficiency. (4) By crushing the waste into small particles, this invention increases the surface area, thereby making the high-temperature sterilization process more uniform and more thorough in killing harmful microorganisms in the waste, ensuring that the treated waste meets hygiene standards. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the structure of the transposition rotating seat of the present invention.

[0016] Figure 3 This is a schematic diagram of the structure of the fan-shaped housing of the present invention.

[0017] Figure 4 This is a schematic diagram of the structure of the arc-shaped long plate of the present invention.

[0018] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0019] Figure 6 This is a schematic diagram of the structure of the adjusting tooth ring of the present invention.

[0020] Figure 7 for Figure 6 A magnified view of a portion of point B in the middle.

[0021] Figure 8 This is a schematic diagram of a portion of the annular sliding plate of the present invention.

[0022] Figure 9 for Figure 8 A magnified view of a portion of point C.

[0023] Figure 10 This is a schematic diagram of the structure of the extruded circular plate in this invention.

[0024] Figure 11 This is a schematic diagram of the structure of the two parts of the annular sliding plate of the present invention.

[0025] Figure 12 for Figure 11 A magnified view of a portion of point D.

[0026] Figure 13 This is a schematic diagram of the structure of the annular rotating plate of the present invention.

[0027] Figure 14 This is a front view of the structure of the fan-shaped housing of the present invention.

[0028] Reference numerals: 101-Base frame; 102-Transfer motor; 103-Transfer rotary seat; 104-Sector-shaped heating plate; 105-Sector-shaped shell; 106-Sector-shaped cover plate; 107-Arc-shaped long plate; 108-Expanding screw; 109-Expanding motor; 110-Adjusting motor; 111-Drive gear; 112-Adjusting gear ring; 113-Adjusting screw; 114-Semi-circular strip; 115-Screwing strip; 116-Sector-shaped rack; 117-Sector-shaped strip; 118-Limiting block; 119-Adjusting gear; 120-Limiting block Plate; 121-Annular slide plate one; 122-Circular rotating plate; 123-Agitating rod one; 124-Support ring plate; 125-Agitating gear ring one; 126-Agitating gear one; 127-Agitating motor one; 128-Extrusion screw; 129-Extrusion motor; 130-Extrusion pulley; 131-Extrusion circular plate; 132-Annular slide plate two; 133-U-shaped fixing plate; 134-Agitating rod two; 135-Annular rotating plate; 136-Circular base plate; 137-Agitating gear ring two; 138-Agitating gear two; 139-Agitating motor two. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] Example: Reference Figures 1-14A pharmaceutical injection waste treatment device includes a base frame 101, a sector-shaped housing 105 movably mounted on the base frame 101, a transposition rotating seat 103 rotatably mounted on the base frame 101, the sector-shaped housing 105 fixedly mounted on the transposition rotating seat 103, a transposition motor 102 fixedly mounted on the base frame 101, the output shaft of the transposition motor 102 being fixedly connected to the transposition rotating seat 103, a sector-shaped cover plate 106 slidably mounted on the sector-shaped housing 105, and an unfolding screw 108 rotatably mounted on the sector-shaped cover plate 106. The unfolding screw 108 and the sector-shaped housing 105 form a helical pair. A [missing information - likely a device name or component] is fixedly mounted on the sector-shaped cover plate 106. The motor 109 is fixedly connected to the output shaft of the motor 109 and the lead screw 108. The arc-shaped long plate 107 is also symmetrically slidably installed on the fan-shaped heating plate 104. When the fan-shaped housing 105 is in the position closest to the motor 109, that is, when the fan-shaped cover plate 106 and the fan-shaped housing 105 are joined, a complete cylinder is formed between the fan-shaped cover plate 106, the fan-shaped housing 105, and the arc-shaped long plate 107. At this time, there is no gap between the fan-shaped cover plate 106, the fan-shaped housing 105, and the arc-shaped long plate 107. The fan-shaped heating plate 104 is fixedly installed on both the fan-shaped housing 105 and the fan-shaped cover plate 106.

[0031] The start-up motor 109 drives the unfolding screw 108 to rotate, which causes the sector cover 106 to move along the axis of the unfolding screw 108, thereby causing the sector cover 106 to move away from the sector shell 105.

[0032] An agitation assembly is provided on the sector-shaped housing 105. The agitation assembly includes a circular rotating plate 122 and an annular rotating plate 135. Three agitating rods 123 are slidably mounted in a circumferential array on the circular rotating plate 122. The circular rotating plate 122 is rotatably mounted on the upper end face of the sector-shaped housing 105. An agitating motor 127 is also fixedly mounted on the upper end face of the sector-shaped housing 105. An agitating gear 126 is fixedly mounted on the output shaft of the agitating motor 127. An agitating gear ring 125 is fixedly mounted on the circular rotating plate 122. The agitating gear ring 125 and the agitating gear 126 form a gear pair. An annular sliding plate 121 is slidably mounted on the circular rotating plate 122. A tension spring is provided between the annular sliding plate 121 and the circular rotating plate 122. The ends of the three agitating rods 123 are all fixedly connected to the annular sliding plate 121.

[0033] The stirring motor 127 is started to drive the stirring gear 126 to rotate. Under the action of the stirring gear ring 125, the circular rotating plate 122 rotates. The annular sliding plate 121 and the stirring rod 123 on the circular rotating plate 122 rotate synchronously, so that the stirring rod 123 stirs the inside of the fan-shaped shell 105.

[0034] Three agitator rods 134 are slidably mounted in a circular array on the annular rotating plate 135. A support ring plate 124 and a circular base plate 136 are provided on the lower end face of the sector-shaped shell 105. The support ring plate 124 and the sector-shaped shell 105 are fixedly connected. Three U-shaped fixing plates 133 are arranged in a circular array between the support ring plate 124 and the circular base plate 136. The support ring plate 124 and the circular base plate 136 are fixedly connected by the U-shaped fixing plates 133. The annular rotating plate 135 is located between the support ring plate 124 and the circular base plate 136. The annular rotating plate 135 is connected to the support ring plate 124. The annular plate 124 and the circular base plate 136 are rotatably connected. An annular slide plate 132 is slidably mounted on the annular rotating plate 135. The ends of the stirring rods 134 are fixedly connected to the annular slide plate 132. A tension spring is provided between the annular rotating plate 135 and the annular slide plate 132. A stirring motor 139 is fixedly mounted on the circular base plate 136. A stirring gear 138 is fixedly mounted on the output shaft of the stirring motor 139. A stirring gear ring 137 is fixedly mounted on the annular rotating plate 135. The stirring gear ring 137 and the stirring gear 138 mesh to form a gear pair.

[0035] A complete circular plate is formed between the supporting ring plate 124, the annular rotating plate 135, and the circular base plate 136, and a closed cylinder is formed between the supporting ring plate 124, the annular rotating plate 135, the circular base plate 136, the arc-shaped long plate 107, the fan-shaped shell 105, the fan-shaped cover plate 106, and the circular rotating plate 122.

[0036] The stirring motor 139 is started to drive the stirring gear 138 to rotate. Under the action of the stirring ring 137, the annular plate 135 rotates synchronously. The annular slide plate 132 and the stirring rod 134 on the annular plate 135 also rotate synchronously, so that the stirring rod 134 stirs the inside of the shift motor 102.

[0037] An extrusion assembly is provided on the sector-shaped housing 105. The extrusion assembly includes an extrusion circular plate 131, which is slidably installed inside the sector-shaped housing 105. The extrusion circular plate 131 and the circular rotating plate 122 are slidably engaged. An extrusion screw 128 is fixedly installed on the extrusion circular plate 131. An extrusion pulley 130 is rotatably installed on the circular rotating plate 122. The extrusion pulley 130 and the extrusion screw 128 form a helical pair. The stirring rod 123 is slidably engaged with the extrusion circular plate 131. An extrusion motor 129 is also fixedly installed on the adjusting gear ring 112. A pulley is fixedly installed on the output shaft of the extrusion motor 129. A belt is provided between the pulley on the output shaft of the extrusion motor 129 and the extrusion pulley 130.

[0038] The extrusion motor 129 is started to drive the extrusion pulley 130 to rotate, which causes the extrusion screw 128 to move relative to the circular rotating plate 122, thereby causing the extrusion circular plate 131 to move relative to the circular rotating plate 122.

[0039] Semicircular strips 114 are fixedly arranged on each of the arc-shaped long plates 107. Multiple screening strips 115 are evenly fixedly arranged on the semicircular strips 114. A circular sieve plate is formed between the semicircular strips 114 and the corresponding screening strips 115. The screening strips 115 on two semicircular strips 114 are spaced apart. When the two semicircular strips 114 are fully joined, a complete circular extrusion plate is formed.

[0040] Two adjusting screws 113 are rotatably mounted on the fan-shaped housing 105. The adjusting screws 113 form a screw pair with the corresponding arc-shaped long plate 107. A limiting plate 120 is fixedly installed on one of the arc-shaped long plates 107. The limiting plate 120 is used to limit the position of the annular slide plate 121.

[0041] An adjusting gear ring 112 is rotatably mounted on the outer side of the sector-shaped housing 105. A sector-shaped rack 116 and a sector-shaped plate 117 are fixedly mounted on the adjusting gear ring 112. Adjusting gears 119 are fixedly mounted on the ends of the adjusting screw 113. When the adjusting gears 119 and the sector-shaped rack 116 are engaged, they form a gear and rack pair. Limiting blocks 118 are fixedly mounted on the adjusting gears 119. The limiting blocks 118 are provided with arc-shaped sliding grooves that cooperate with the sector-shaped plate 117. An adjusting motor 110 is also fixedly mounted on the outer side of the sector-shaped housing 105. A drive gear 111 is fixedly mounted on the output shaft of the adjusting motor 110. The drive gear 111 and the adjusting gear ring 112 mesh to form a gear pair.

[0042] Under the action of the sector rack 116 and sector plate 117, when the sector rack 116 and the adjusting gear 119 are engaged, the limiting block 118 corresponding to the adjusting gear 119 disengages from the sector plate 117. Under the action of tension spring one and tension spring two, the lower end face of the stirring rod one 123 is always in contact with the upper surface of the circular extrusion plate and the upper end face of the stirring rod two 134 is always in contact with the lower surface of the circular extrusion plate.

[0043] In the initial position, the semicircular strips 114 are all located closest to the support ring plate 124. At this time, a complete circular extrusion plate is formed between the two semicircular strips 114 and the screening strip 115. At this time, the tension spring between the annular slide plate 121 and the circular rotating plate 122 is in the initial state and has not been deformed. The spring between the annular rotating plate 135 and the annular slide plate 132 is in the stretched state. The limiting plate 120 is always in contact with the annular slide plate 121, and the fan-shaped strip 117 and the two limiting circular blocks 118 are in the engaged state. At this time, the arc-shaped long plate 107 cannot move freely.

[0044] Open the sector-shaped cover 106, put the waste to be processed into the sector-shaped housing 105, and then close the sector-shaped cover 106. Then start the shifting motor 102 to drive the shifting rotary seat 103 to rotate, so that the sector-shaped housing 105 is in a vertical state. At this time, the circular rotating plate 122 is located directly above the support ring plate 124, and the waste is located between the extrusion circular plate 131 and the circular extrusion plate. Then start the extrusion motor 129 to drive the extrusion circular plate 131 to move downward. The extrusion circular plate 131 presses and crushes the waste on the circular extrusion plate. At the same time, start the stirring motor 127 to drive the circular rotating plate 122 to rotate. The extrusion circular plate 131 and the stirring rod 123 rotate synchronously. Under the action of the stirring rod 123, the waste is agitated, thereby improving the pressing and crushing effect.

[0045] After pressing and crushing for a certain period of time, the adjustment motor 110 is started to drive the drive gear 111 to rotate, so that the adjustment gear ring 112 rotates. The sector rack 116 and sector plate 117 on the adjustment gear ring 112 rotate synchronously, so that the sector rack 116 rotates to engage with the adjustment gear 119 corresponding to the arc-shaped long plate 107 with the limit plate 120. At this time, the sector plate 117 disengages from the limit block 118 corresponding to the arc-shaped long plate 107.

[0046] The adjusting gear ring 112 continues to rotate, and the sector rack 116 drives the adjusting gear 119 corresponding to the arc-shaped long plate 107 to rotate, thereby causing the corresponding adjusting screw 113 to rotate, which in turn causes the arc-shaped long plate 107 to move upward. The semi-circular strip 114 and the screening strip 115 corresponding to the arc-shaped long plate 107 move upward synchronously, that is, the circular screen plate formed by the semi-circular strip 114 and the screening strip 115 moves upward. The waste particles that meet the requirements fall along the screen gaps of the screen plate into the circular plate formed between the support ring plate 124, the annular rotating plate 135, and the circular base plate 136. Unsuitable waste particles remain on the circular screen plate. The upward movement of the arc-shaped long plate 107 drives the circular rotating plate 122 to rotate, thereby agitating the residue on the circular screen plate with the stirring rod 123. This allows suitable waste particles to fall off completely. As the arc-shaped long plate 107 moves, the limiting plate 120 on the arc-shaped long plate 107 moves upward synchronously. That is, the limiting plate 120 releases the restriction on the position of the annular sliding plate 121, and the stirring rod 123 can move upward synchronously with the arc-shaped long plate 107.

[0047] Under the action of the limiting plate 120, the lower end face of the stirring rod 123 is always in contact with the upper surface of the circular sieve plate corresponding to the arc-shaped long plate 107, thereby preventing the stirring rod 123 from moving under the action of waste.

[0048] When the circular sieve plate moves to a predetermined position, the sector rack 116 disengages from the adjusting gear 119 corresponding to the arc-shaped long plate 107. The arc-shaped groove on the limiting block 118 corresponding to the arc-shaped long plate 107 is in the same circumferential direction as the sector rack 117. The sector rack 117 re-engages with the limiting block 118 corresponding to the arc-shaped long plate 107. Under the action of the sector rack 117, the limiting block 118 and the adjusting gear 119 cannot rotate freely, thus locking the position of the arc-shaped long plate 107. The sector rack 116 continues to rotate, thus engaging with the adjusting gear 119 corresponding to another arc-shaped long plate 107. At this time, the sector rack 116... 7. Disengage from the limiting block 118. Under the action of the fan-shaped rack 116, the arc-shaped long plate 107 without the limiting plate 120 moves upward. The semi-circular strip 114 and the screening strip 115 on the arc-shaped long plate 107 move upward synchronously, eventually causing the semi-circular strip 114 and the screening strip 115 to re-engage to form a circular extrusion plate. At this time, the fan-shaped strip 117 re-engages with the two limiting blocks 118, thus locking the position of the two arc-shaped long plates 107. During the upward movement of the arc-shaped long plate 107 without the limiting plate 120, the stirring rod 134 moves upward synchronously, and the tension spring 2 between the annular slide plate 132 and the annular rotating plate 135 begins to return to its original state.

[0049] Repeat the above steps so that the extrusion plate 131 presses and crushes the waste on the circular pressing plate again. Then repeat the above steps so that the circular screen plate corresponding to the arc-shaped long plate 107 with the limit plate 120 moves upward, that is, the waste after secondary crushing is screened.

[0050] Repeat the above steps to crush the waste a third time, thereby achieving thorough crushing of the waste.

[0051] The crushed waste particles accumulate in a circular plate formed between the support ring plate 124, the annular rotating plate 135, and the circular base plate 136. The waste particles are then sterilized at high temperature by the fan-shaped heating plate 104. The stirring motor 139 is started to drive the annular rotating plate 135 to rotate, so that the stirring rod 134 stirs the waste particles, thereby enabling the waste to be thoroughly sterilized.

[0052] Working principle: Start the shifting motor 102 to drive the shifting rotary seat 103 to rotate, so that the sector housing 105 is in a horizontal state. At this time, the sector cover plate 106 is located directly above the base frame 101. By controlling the sector cover plate 106, the waste to be processed is put into the sector housing 105. Then start the shifting motor 102 to make the sector housing 105 rotate to a vertical state, and the circular rotating plate 122 is located directly above the support ring plate 124.

[0053] Then, by starting the extrusion motor 129, the extrusion disc 131 is moved downward, which is the first extrusion crushing of the waste. The disc 122 is driven to rotate, which causes the stirring rod 123 to stir the waste, thereby improving the extrusion crushing effect. Then, the adjustment motor 110 is started, which causes the two arc-shaped plates 107 to move upward one after another, thereby screening the extruded waste. Then, the above steps are repeated to extrude the waste for a second and a third extrusion crushing, thereby achieving full extrusion crushing of the waste.

[0054] After the waste is crushed and squeezed, the inside of the fan-shaped shell 105 and the fan-shaped cover plate 106 is heated by the fan-shaped heating plate 104, which sterilizes the waste particles at high temperature. At the same time, the stirring motor 139 is started to drive the annular rotating plate 135 to rotate, so that the stirring rod 134 stirs the waste particles, thereby improving the high-temperature sterilization effect.

[0055] After the particle disinfection and sterilization of the waste inside the sector-shaped shell 105 and sector-shaped cover 106 is completed, the shifting motor 102 and the unfolding motor 109 are started to control the opening of the sector-shaped cover 106 and adjust the position of the sector-shaped shell 105, so that the waste particles inside the sector-shaped shell 105 and sector-shaped cover 106 can be poured out. A collection box can be set on the base frame 101 to effectively collect the poured-out waste particles.

[0056] This invention is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort are within the protection scope of this invention.

Claims

1. A pharmaceutical injection waste treatment device, comprising a base frame (101), characterized in that: A sector-shaped shell (105) is movably mounted on the base frame (101). A sector-shaped cover plate (106) is slidably mounted on the sector-shaped shell (105). An agitation assembly and an extrusion assembly are provided on the sector-shaped shell (105). The agitation assembly includes a circular rotating plate (122) and an annular rotating plate (135). Three agitation rods (123) are slidably mounted in a circular array on the circular rotating plate (122). Three agitation rods (134) are slidably mounted in a circular array on the annular rotating plate (135). The agitation rods (123) and (134) are used to agitate the sector-shaped shell. (105) and the fan-shaped cover plate (106) are stirred inside. The extrusion assembly includes an extrusion circular plate (131) and two arc-shaped long plates (107). The two arc-shaped long plates (107) are symmetrically slidably installed on the fan-shaped shell (105). Semi-circular strips (114) are fixedly arranged on each arc-shaped long plate (107). Multiple screening strips (115) are evenly fixedly arranged on the semi-circular strips (114). The screening strips (115) on the two semi-circular strips (114) are spaced apart. When the two semi-circular strips (114) are fully joined, a complete circular extrusion plate is formed.

2. The pharmaceutical injection waste treatment device according to claim 1, characterized in that: A shifting seat (103) is rotatably mounted on the base frame (101). The fan-shaped housing (105) is fixedly mounted on the shifting seat (103). When the fan-shaped cover plate (106) and the fan-shaped housing (105) are joined, a complete cylinder is formed between the fan-shaped cover plate (106), the fan-shaped housing (105), and the arc-shaped long plate (107). A fan-shaped heating plate (104) is fixedly mounted on both the fan-shaped housing (105) and the fan-shaped cover plate (106).

3. The pharmaceutical injection waste treatment device according to claim 2, characterized in that: The circular rotating plate (122) is rotatably mounted on the upper surface of the fan-shaped housing (105). An annular sliding plate (121) is slidably mounted on the circular rotating plate (122). A tension spring is provided between the annular sliding plate (121) and the circular rotating plate (122). The ends of the three stirring rods (123) are all fixedly connected to the annular sliding plate (121).

4. The pharmaceutical injection waste treatment device according to claim 3, characterized in that: The lower end face of the fan-shaped shell (105) is provided with a support ring plate (124) and a circular base plate (136). The support ring plate (124) and the fan-shaped shell (105) are fixedly connected. Three U-shaped fixing plates (133) are arranged in a circumferential array between the support ring plate (124) and the circular base plate (136). The support ring plate (124) and the circular base plate (136) are fixedly connected by the U-shaped fixing plates (133). An annular rotating plate (135) is arranged between the support ring plate (124) and the circular base plate (136). The annular rotating plate (135) is rotatably connected to the support ring plate (124) and the circular base plate (136). An annular sliding plate (132) is slidably installed on the annular rotating plate (135). The ends of the stirring rod (134) are fixedly connected to the annular sliding plate (132). A tension spring is provided between the annular rotating plate (135) and the annular sliding plate (132).

5. A pharmaceutical injection waste treatment device according to claim 4, characterized in that: The extrusion plate (131) is slidably installed inside the fan-shaped shell (105). The extrusion plate (131) and the circular rotating plate (122) are slidably engaged. An extrusion screw (128) is fixedly installed on the extrusion plate (131). An extrusion pulley (130) is rotatably installed on the circular rotating plate (122). The extrusion pulley (130) and the extrusion screw (128) form a helical pair. The stirring rod (123) is slidably engaged with the extrusion plate (131).

6. The pharmaceutical injection waste treatment device according to claim 5, characterized in that: Two adjusting screws (113) are rotatably mounted on the fan-shaped housing (105). The adjusting screws (113) form a screw pair with the corresponding arc-shaped long plate (107). A limiting plate (120) is fixedly provided on one of the arc-shaped long plates (107). The limiting plate (120) is used to limit the position of the annular sliding plate (121).

7. A pharmaceutical injection waste treatment device according to claim 6, characterized in that: An adjusting gear ring (112) is rotatably mounted on the outer side of the sector-shaped housing (105). A sector-shaped rack (116) and a sector-shaped strip (117) are fixedly mounted on the adjusting gear ring (112). An adjusting gear (119) is fixedly mounted on the end of the adjusting screw (113). When the adjusting gear (119) and the sector-shaped rack (116) are engaged, they form a gear and rack pair. A limiting block (118) is fixedly mounted on the adjusting gear (119). An arc-shaped groove that cooperates with the sector-shaped strip (117) is provided on the limiting block (118).

8. A pharmaceutical injection waste treatment device according to claim 7, characterized in that: Under the action of the sector rack (116) and sector plate (117), when the sector rack (116) and the adjusting gear (119) are engaged, the limiting block (118) corresponding to the adjusting gear (119) disengages from the sector plate (117).

9. A pharmaceutical injection waste treatment device according to claim 8, characterized in that: Under the action of tension spring one and tension spring two, the lower end face of stirring rod one (123) is always in contact with the upper surface of the circular extrusion plate and the upper end face of stirring rod two (134) is always in contact with the lower surface of the circular extrusion plate.

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