Anesthetic waste gas treatment device

Abstract

The invention relates to the technical field of medical instruments, and discloses an anesthetic waste gas treatment device which comprises a water collection tank, a condensation shell and a filter shell which are sequentially connected from bottom to top, the bottom of the condensation shell is connected with a heat dissipation shell, the heat dissipation shell comprises a shell body connected with the condensation shell, and a sealing cover is arranged below the shell body; a semiconductor chilling plate connected with the condensation shell is arranged in the shell, a cooling fan is installed below the semiconductor chilling plate, a transmission mechanism used for driving the sealing cover to move up and down is arranged between the cooling fan and the sealing cover, the cooling fan is started during refrigeration, and the transmission mechanism drives the sealing cover to move downwards to be separated from the shell so that the cooling shell can be opened. Therefore, the cooling fan can blow air to dissipate heat; after refrigeration, the cooling fan stops working, under the action of the transmission mechanism, the sealing cover moves upwards to reset and abuts against the shell to complete plugging and closing of the cooling shell, the condensation shell is prevented from absorbing environment heat, and the water vapor removing efficiency of the device is improved.

Description

Technical Field

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

[0002] When anesthetic gases are inhaled by patients, they achieve an anesthetic effect. However, any anesthetic gases that are not fully absorbed will mix with the patient's exhaled waste gas to form anesthetic waste gas. Since direct emission of anesthetic waste gas will cause air pollution, it must be purified.

[0003] The mainstream technical solution for existing anesthetic waste gas treatment is to use activated carbon filter plates as the core adsorption component. The activated carbon removes harmful components in the anesthetic waste gas through adsorption, thereby achieving the goal of waste gas purification. At the same time, in order to remove water vapor contained in the waste gas during the purification process and avoid it competing with the target adsorption components in the anesthetic waste gas for adsorption sites on the activated carbon surface, the existing technology also uses a cooling unit to contact the anesthetic waste gas before the filter plate. This effectively removes the water vapor entrained in the anesthetic waste gas, delays the saturation of the filter plate, and improves the effective load capacity of the filter plate.

[0004] However, such equipment also has the following drawbacks: the cooling unit usually uses a semiconductor refrigeration chip to cool the condenser wall. Since the condenser wall is in direct contact with the semiconductor refrigeration chip, heat can be efficiently transferred to the semiconductor refrigeration chip for heat dissipation during cooling. However, after cooling is completed, since the temperature of the condenser wall is lower than the ambient temperature, the contact surface will continue to absorb ambient heat and accelerate the temperature rise of the condenser wall, reducing the effective amount of anesthetic waste gas that the condenser wall can handle after a single cooling cycle, thereby reducing the efficiency of the equipment in removing water vapor. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an anesthetic waste gas treatment device. During cooling, the cooling fan starts, and the transmission mechanism drives the sealing cover to move down and separate from the housing, so that the heat dissipation shell can be opened to facilitate air blowing and heat dissipation. After cooling, the cooling fan stops, and under the action of the transmission mechanism, the sealing cover moves up and resets to abut against the housing to complete the sealing and closing of the heat dissipation shell, preventing the bottom surface of the condensation shell from absorbing ambient heat and accelerating the temperature rise.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An anesthetic waste gas treatment device includes a water collection tank, a condenser shell, and a filter shell connected sequentially from bottom to top. The water collection tank has an independent water collection cavity and a heat dissipation channel on its inner side. The bottom of the condenser shell is connected to a heat dissipation shell, which is embedded in the heat dissipation channel. An activated carbon filter plate is installed inside the filter shell. An air inlet pipe is installed on the filter shell. One end of the air inlet pipe passes through the activated carbon filter plate and communicates with the condenser cavity inside the condenser shell. The condenser cavity communicates with the water collection cavity through a liquid outlet channel and is located below the activated carbon filter plate. The heat dissipation shell includes a housing connected to the condenser shell. A sealing cover is provided at the bottom of the housing. A cooling mechanism for cooling the condenser shell is provided inside the housing. The cooling mechanism includes a semiconductor cooling chip connected to the condenser shell. A cooling fan is installed below the semiconductor cooling chip. A transmission mechanism is provided between the cooling fan and the sealing cover for driving the sealing cover to move up and down relative to the housing. When the cooling mechanism is cooling, the cooling fan drives the sealing cover to move down to open the heat dissipation shell through the transmission mechanism. After cooling, the sealing cover returns to its original position and moves up to close the heat dissipation shell through the transmission mechanism.

[0007] Optionally, the transmission mechanism includes a drive shaft connected to the output shaft of the cooling fan. A second limiting frame fixedly connected to the housing is provided below the drive shaft. A sliding rod is provided on the second limiting frame. The upper end of the sliding rod is connected to the drive shaft through a transmission assembly. The lower end of the sliding rod is fixedly connected to the sealing cover. An abutment ring is fixedly sleeved on the outer circumferential surface of the sliding rod. A return spring is provided between the abutment ring and the top surface of the second limiting frame.

[0008] Optionally, the transmission assembly includes a bushing fixedly installed on the upper end of the sliding rod, the drive shaft being embedded inside the bushing, the bushing having a V-groove, a drive rod being fixedly connected to the outer circumferential surface of the drive shaft, the drive rod extending into the V-groove, and the drive rod abutting against the inclined wall of the V-groove while rotating with the drive shaft.

[0009] Optionally, a first limiting frame is provided above the second limiting frame. The first limiting frame is fixedly connected to the housing. The sliding rod slides through the first limiting frame, and the drive shaft, the bushing, the sliding rod, and the reset spring are coaxially distributed.

[0010] Optionally, the water collection tank includes an integrally formed outer shell and an inner shell, which are coaxially distributed, and the water collection cavity is located between the outer shell and the inner shell, and the heat dissipation channel is located inside the inner shell.

[0011] Optionally, the condenser shell includes a sleeve embedded inside the outer shell, the inner side of the sleeve is connected to a condenser wall via a support rod, the condenser wall abuts against the top of the inner shell, and the liquid outlet channel is distributed between two adjacent support rods.

[0012] Optionally, the condenser wall adopts a conical structure, the lower end of the condenser wall extends into the water collection cavity, and the shell is fixedly installed on the bottom surface of the condenser wall.

[0013] Optionally, the refrigeration mechanism further includes a liquid storage box fixedly connected to the bottom surface of the condenser wall. The liquid storage box is located inside the housing, and the cooling surface of the thermoelectric cooler is connected to the bottom surface of the liquid storage box. The heating surface of the thermoelectric cooler is connected to a heat sink, and the cooling fan is installed on the side of the heat sink opposite to the thermoelectric cooler.

[0014] Optionally, the housing is further provided with a temperature control mechanism, which is located between the first limiting frame and the second limiting frame. When the heating surface of the semiconductor cooling chip reaches the preset operating temperature, the temperature control mechanism drives the sliding rod to move down so that the driving rod disengages from the V-groove.

[0015] Optionally, the air inlet pipe adopts a right-angle bend structure, the vertical section of the air inlet pipe penetrates the activated carbon filter plate, the horizontal section of the air inlet pipe penetrates the side wall of the filter shell, and the top of the filter shell is equipped with an air outlet pipe communicating with its inner filter chamber.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) In this invention, the refrigeration mechanism can refrigerate the condenser shell, so that the anesthetic waste gas enters the device and first condenses to remove water vapor, then passes through the activated carbon filter plate to filter out the anesthetic components in the anesthetic waste gas, and then is discharged to the external environment; during this process, the cooling fan is started when refrigeration is performed, and the sealing cover can be driven down to separate from the shell through the transmission mechanism to open the heat dissipation shell, so that the cooling fan can blow air to dissipate heat, and the hot air is discharged to the external environment through the heat dissipation channel; after refrigeration, the cooling fan stops working, and under the action of the transmission mechanism, the sealing cover moves up to reset and abuts against the shell to complete the sealing and closing of the heat dissipation shell, avoiding the bottom surface of the condenser shell from absorbing ambient heat, solving the problem of the bottom surface of the condenser shell accelerating the temperature rise after the refrigeration mechanism stops, improving the effective treatment capacity of the anesthetic waste gas after a single refrigeration, and thus improving the efficiency of the device in removing water vapor; (2) In this invention, when the drive shaft rotates rapidly, the drive rod pushes the inclined wall of the V-groove and causes the sliding rod to overcome the elastic force of the return spring and move downward until the drive rod disengages from the V-groove. At this time, the sliding rod drives the sealing cover to remain open, which facilitates the fan to dissipate heat. When the drive shaft is stationary, the sliding rod, under the action of the return spring, causes the inclined wall of the V-groove to be in contact with the drive rod. At this time, the sealing cover is in contact with the housing and is in a closed state, thereby ensuring the heat dissipation shell's cold insulation effect on the bottom surface of the condensation shell. (3) In this invention, the sealing cover is linked with the cooling fan through the transmission mechanism. Without the need for an additional power source, the cooling shell can be automatically closed and opened by the squeezing of the V-shaped groove wall by the drive rod and the elastic force of the return spring, thereby improving the removal efficiency of water vapor in the exhaust gas and reducing the cost. (4) The present invention also includes a temperature control mechanism. During cooling, the sliding rod can be opened by starting the cooling fan. After the heating surface of the semiconductor cooling chip reaches the preset operating temperature, the temperature control mechanism pushes the sliding rod to move further down. While the cooling shell remains open, the sliding rod can be disengaged from the drive shaft, reducing the load on the cooling fan. After cooling is finished and the cooling fan is turned off, the temperature control mechanism can also delay closing the cooling shell to avoid heat accumulation in the cooling shell and improve heat dissipation efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the anesthetic waste gas treatment device in an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the anesthetic waste gas treatment device in an embodiment of the present invention; Figure 3 This is a schematic diagram of the transmission mechanism inside the heat sink in an embodiment of the present invention; Figure 4 This is a schematic diagram showing the position and structure of the water collection tank and the condenser shell in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the condenser shell in an embodiment of the present invention; Figure 6 This is a schematic diagram of the temperature control mechanism inside the heat sink in an embodiment of the present invention; Figure 7 yes Figure 6 A magnified view of a portion of point A in the middle; Figure 8 This is a schematic diagram of the temperature control mechanism in an embodiment of the present invention; Among them, 1. Water collection tank; 101. Outer shell; 102. Inner shell; 103. Water collection cavity; 104. Heat dissipation channel; 2. Condenser shell; 201. Sleeve; 202. Condenser wall; 203. Support rod; 204. Liquid outlet channel; 205. Condenser chamber; 3. Filter housing; 301. Air outlet pipe; 302. Filter chamber; 4. Intake pipe; 401. Limiting ring; 402. Adjusting nut; 5. Activated carbon filter plate; 6. Heat sink housing; 601. Housing; 602. Sealing cap; 603. Liquid reservoir; 604. Semiconductor cooling chip; 605. Heat sink; 606. Cooling fan; 701. Drive shaft; 711. Drive rod; 702. Sliding rod; 703. Bushing; 731. V-groove; 704. First limit bracket; 705. Second limit bracket; 706. Abutment ring; 707. Return spring; 8. Heat-conducting wire; 901. Bimetallic strip; 902. Connecting post; 903. Moving metal contact piece; 904. Moving contact; 905. First metal spring; 906. Second metal spring; 907. Contact piece; 908. Stationary contact; 909. Third metal spring; 910. First dial ring; 911. Bracket; 912. Adjusting screw; 913. Insulating rod; 914. Support plate; 915. Second dial ring. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention and therefore only show the components relevant to the present invention.

[0019] Example 1, as Figures 1-5 As shown, an anesthetic waste gas treatment device includes a water collection tank 1, a condenser shell 2, a filter shell 3, an air inlet pipe 4, an activated carbon filter plate 5, and a refrigeration mechanism. The water collection tank 1, condenser shell 2, and filter shell 3 are connected sequentially from bottom to top along the axial direction. The air inlet pipe 4 passes through the filter shell 3, the activated carbon filter plate 5 is installed inside the filter shell 3, and the top of the filter shell 3 is also connected to an air outlet pipe 301. The refrigeration mechanism is located at the bottom of the condenser shell 2. The refrigeration mechanism cools the condenser shell 2, making its bottom temperature much lower than room temperature. After the anesthetic waste gas enters the device through the air inlet pipe 4, it first contacts the bottom of the condenser shell 2 to achieve condensation and water removal. The condensate enters the water collection tank 1 below, and the condensed anesthetic waste gas floats up, passes through the activated carbon filter plate 5, and is then discharged into the external environment through the air outlet pipe 301.

[0020] As described above, the inner side of the water collection tank 1 is provided with an independent water collection cavity 103 and a heat dissipation channel 104. The water collection tank 1 includes an integrally formed outer shell 101 and an inner shell 102. The outer shell 101 is coaxially sleeved on the outer side of the inner shell 102, and the two enclose each other to form a water collection cavity 103 for storing condensate. The heat dissipation channel 104 is located inside the inner shell 102, that is, the heat dissipation channel 104 is enclosed between the inner walls of the inner shell 102. The water collection cavity 103 is enclosed between the outer wall of the inner shell 102 and the inner wall of the outer shell 101.

[0021] The inner shell 102 and outer shell 101 of the water collection tank 1 are both cylindrical structures, the activated carbon filter plate 5 is annular, the outer shell 101 is provided with a transparent liquid level observation window, and a sealable water outlet is opened at the bottom between the outer shell 101 and the inner shell 102. The water collection status in the water collection tank 1 can be easily viewed through the liquid level observation window, and the condensate collected in the water collection chamber 103 can be easily discharged through the water outlet.

[0022] The condenser shell 2 includes a sleeve 201 and a condenser wall 202, which are fixedly connected at their edges by a support rod 203. The condenser wall 202 is located at the bottom of the inner side of the sleeve 201, and the sleeve 201 can be embedded into the inner side of the outer shell 101 of the water collection tank 1. The bottom surface of the condenser wall 202 can abut against the top of the inner shell 102. During installation, the lower part of the outer side of the sleeve 201 and the upper part of the inner side of the outer shell 101 are both provided with threads that can be screwed into each other. The sleeve 201 is screwed into the outer shell 101 until the condenser wall 202 abuts against the top of the inner shell 102, thus completing the assembly of the condenser shell 2 on the water collection tank 1. At this time, the water collection cavity 103 and the heat dissipation channel 104 are separated from each other by the condenser wall 202 and are independent, and the lower end of the heat dissipation channel 104 is connected to the external environment.

[0023] The support rods 203 are arranged in multiple ways, and the multiple support rods 203 are arranged in a circular array around the axis of the sleeve 201 and the condenser wall 202. A liquid outlet channel 204 is formed between two adjacent support rods 203. After the condenser shell 2 and the water collection tank 1 are assembled, the condenser chamber 205 inside the condenser shell 2 is connected to the water collection chamber 103 through the liquid outlet channel 204 to ensure that the condensate of the anesthetic waste gas can flow smoothly into the water collection chamber 103.

[0024] The filter housing 3 has a filter chamber 302 inside. The activated carbon filter plate 5 is fixedly installed in the filter chamber 302, and the filter chamber 302 is divided into upper and lower chambers by the activated carbon filter plate 5. The condensation chamber 205 is located below the activated carbon filter plate 5. The air outlet pipe 301 is located at the top of the filter housing 3 and communicates with the upper chamber. The lower part of the outer side of the filter housing 3 is connected to the upper part of the inner side of the sleeve 201, that is, the filter housing 3 is embedded in the sleeve 201. The two can also be assembled by threaded connection or snap-fit ​​connection. After the assembly is completed, the lower chamber of the filter chamber 302 is connected to the condensation chamber 205.

[0025] The intake pipe 4 adopts a right-angle bend structure. Its horizontal section penetrates the side wall of the filter shell 3 at the position of the upper cavity, and its vertical section is located inside the filter shell 3 and penetrates the activated carbon filter plate 5 from top to bottom. That is, the intake pipe 4 extends horizontally to the upper cavity, and then passes through the activated carbon filter plate 5 to extend into the lower cavity. The intake pipe 4 and the activated carbon filter plate 5 are sealed together.

[0026] A limiting ring 401 is fixedly installed at the lower part of the air intake pipe 4. The inner ring of the upper end face of the activated carbon filter plate 5 is pressed against the limiting ring 401. An adjusting nut 402 for pressing the activated carbon filter plate 5 is threadedly connected to the lower part of the air intake pipe 4, below the limiting ring 401. After opening the filter shell 3 and the condenser shell 2, the activated carbon filter plate 5 can be disassembled by loosening the adjusting nut 402, improving the convenience of replacing the activated carbon filter plate 5.

[0027] Specifically, after the anesthetic waste gas enters the treatment device through the inlet pipe 4, it first enters the condensation chamber 205 from the lower cavity for condensation and water removal. When the anesthetic waste gas comes into contact with the condensation wall 202 and is condensed, the condensate can flow to the liquid outlet channel 204 under the combined action of gravity and airflow, and then gathers into the water collection chamber 103. The anesthetic waste gas with water vapor removed floats up, first passes through the activated carbon filter plate 5 from the lower cavity to enter the upper cavity, is filtered by the activated carbon filter plate 5, and then is discharged to the external environment through the outlet pipe 301.

[0028] Furthermore, the condenser wall 202 adopts a conical structure, with its lower end extending into the water collection chamber 103, and the end of the air inlet pipe 4 directly facing the top of the condenser wall 202. This structural design not only allows the anesthetic waste gas to fully contact the condenser wall 202, but also improves the collection efficiency of the condensate and ensures that the condensate can eventually flow into the condenser chamber 205, thereby improving the condensation efficiency and condensate collection efficiency of the device.

[0029] like Figure 2 and Figure 3 As shown, the cooling mechanism includes a thermoelectric cooler 604, a heat sink 605, and a cooling fan 606. The thermoelectric cooler 604 is connected to the condenser shell 2, the cooling fan 606 is located below the thermoelectric cooler 604, and the heat sink 605 is located between the cooling fan 606 and the thermoelectric cooler 604. When the thermoelectric cooler 604 works to cool the condenser shell 2, the heat it generates is first conducted to the bottom through the heat sink 605, and then blown to the outside by the cooling fan 606 to ensure the cooling effect of the thermoelectric cooler 604.

[0030] Furthermore, the refrigeration mechanism also includes a liquid storage box 603 fixedly connected to the bottom surface of the condenser wall 202. The liquid storage box 603 has a frustum-shaped structure that is larger at the top and smaller at the bottom. It is used to store refrigerant. The refrigerant can improve the refrigeration effect and the cold retention time of the refrigeration mechanism. The cooling surface of the semiconductor refrigeration chip 604 is connected to the bottom surface of the liquid storage box 603, and the heating surface of the semiconductor refrigeration chip 604 is connected to the heat sink 605. The cooling fan 606 is installed on the side of the heat sink 605 opposite to the semiconductor refrigeration chip 604.

[0031] The bottom surface of the condenser wall 202, located outside the liquid storage box 603, and the outer surface of the liquid storage box 603 are both coated with a nano-thermal insulation coating. Simultaneously, the outer wall of the sleeve 201 is also coated with a nano-thermal insulation coating. This arrangement maintains a low-temperature environment in the area between the condenser wall 202 and the activated carbon filter plate 5, while preventing this low-temperature environment from absorbing heat from the outer wall of the sleeve 201.

[0032] Specifically, the cooling mechanism is located in the heat dissipation channel 104. When the semiconductor cooling chip 604 is working, the cold energy generated by its cooling surface is transferred to the refrigerant in the liquid storage box 603, and then transferred to the condenser wall 202 through the refrigerant. The heat generated by its heating surface can be quickly discharged to the external environment along the heat dissipation channel 104 under the dual action of the radiator 605 and the cooling fan 606.

[0033] In Example 2, based on Example 1, the present invention further includes a heat dissipation shell 6 installed in the heat dissipation channel 104. The heat dissipation shell 6 is connected to the bottom of the condensation shell 2 and has an openable or closable structure. A transmission mechanism is provided inside the heat dissipation shell 6. Driven by the cooling fan 606, the opening or closing of the heat dissipation shell 6 can be achieved through the transmission mechanism without the need for an additional power source.

[0034] like Figures 1-3 As shown, the heat dissipation shell 6 includes a shell 601 and a sealing cover 602 that can be opened and closed relative to each other along the axial direction. The inner walls of the shell 601 and the sealing cover 602 are coated with a nano heat insulation coating. The upper end of the shell 601 is fixedly connected to the condensation wall 202 of the condensation shell 2 (that is, the shell 601 is fixedly installed on the bottom surface of the condensation wall 202). The cooling mechanism is located inside the shell 601, and the sealing cover 602 is located below the shell 601. The transmission mechanism is located between the cooling fan 606 of the cooling mechanism and the sealing cover 602. The transmission mechanism is used to drive the sealing cover 602 to move up and down relative to the shell 601. When the cooling mechanism is cooling, the cooling fan 606 can drive the sealing cover 602 to move down to open the heat dissipation shell 6 through the transmission mechanism. After cooling, the sealing cover 602 is reset and moved up to close the heat dissipation shell 6 through the transmission mechanism.

[0035] When the refrigeration mechanism is working, the cooling fan 606 starts, and the transmission mechanism drives the sealing cover 602 to move down and disengage from the housing 601, so that the heat sink 6 is in an open state, so that the cooling fan 606 can blow air to dissipate heat and exhaust the hot air to the outside environment through the heat dissipation channel 104. After refrigeration, the cooling fan 606 stops working, and under the action of the transmission mechanism, the sealing cover 602 moves up and resets to abut against the housing 601 to complete the sealing and closing of the heat sink 6, preventing the bottom surface of the condenser shell 2 from absorbing ambient heat, solving the problem of the bottom surface of the condenser shell 2 accelerating the temperature rise after the refrigeration mechanism stops, increasing the effective treatment capacity of anesthetic waste gas after a single refrigeration, and thus improving the efficiency of the device in removing water vapor.

[0036] The transmission mechanism includes a drive shaft 701, a sliding rod 702, a first limiting frame 704, a second limiting frame 705, an abutment ring 706, and a return spring 707. The drive shaft 701 is fixedly connected to the output shaft of the cooling fan 606, and the two can rotate coaxially and synchronously. The first limiting frame 704 and the second limiting frame 705 are both fixedly connected to the housing 601. The first limiting frame 704 is located below the drive shaft 701, and the second limiting frame 705 is located below the first limiting frame 704, and the two are parallel to each other. A sliding rod 702 is slidably mounted on the positioning frame 704 and the second limiting frame 705. The upper end of the sliding rod 702 is connected to the drive shaft 701 through a transmission assembly, and the lower end of the sliding rod 702 is fixedly connected to the sealing cover 602. An abutment ring 706 is fixedly sleeved on the outer circumferential surface of the lower part of the sliding rod 702. A return spring 707 is also sleeved on the sliding rod 702, and the lower end of the return spring 707 is in contact with the top surface of the second limiting frame 705, while the upper end of the return spring 707 is in contact with the bottom surface of the abutment ring 706.

[0037] As described above, the transmission assembly can convert the rotational motion of the drive shaft 701 around its axis into the linear motion of the sliding rod 702 along its axis. When the cooling fan 606 starts and drives the drive shaft 701 to rotate, under the action of the transmission assembly, the sliding rod 702 moves downward to overcome the elastic force of the return spring 707, pushing the sealing cover 602 away from the housing 601, so that the heat sink 6 is in the open state, ensuring that the heat inside the heat sink 6 can be cooled by the cooling fan 606. When the cooling fan 606 stops working, under the action of the return spring 707, the sliding rod 702 moves upward to reset, causing the sealing cover 602 to fit against the bottom surface of the housing 601, thereby achieving the sealing of the heat sink 6. The inner walls of the housing 601 and the sealing cover 602 are coated with a nano-thermal insulation coating, which can improve the heat insulation effect of the heat sink 6, reduce the heat exchange between the external environment and the condenser wall 202 when not cooling, prevent the condenser wall 202 from absorbing ambient heat, and ensure the cooling effect of the heat sink 6 on the condenser wall 202.

[0038] The transmission assembly includes a bushing 703, a V-groove 731, and a drive rod 711. The bushing 703 is fixedly installed on the upper end of the sliding rod 702. The lower part of the drive shaft 701 is embedded inside the bushing 703. The V-groove 731 is formed on the side wall of the bushing 703 and its top extends through the bushing 703. The drive rod 711 is fixedly installed on the outer circumferential surface of the drive shaft 701 and is perpendicular to the drive shaft 701. The drive rod 711 can extend into the V-groove 731. When the drive shaft 701 drives the drive rod 711 to rotate synchronously, the drive rod 711 can simultaneously abut against the inclined wall of the V-groove 731.

[0039] When the drive shaft 701 is stationary, the sliding rod 702, under the action of the return spring 707, causes the inclined wall of the V-groove 731 to abut against the drive rod 711. At this time, the sealing cover 602 abuts against the housing 601 and is in a closed state, ensuring the heat dissipation shell 6's cold insulation effect on the bottom surface of the condensation shell 2. When the drive shaft 701 rotates rapidly, the drive rod 711 pushes the inclined wall of the V-groove 731 and causes the sliding rod 702 to overcome the elastic force of the return spring 707 and move downward until the drive rod 711 disengages from the V-groove 731. At this time, the sliding rod 702 drives the sealing cover 602 to remain open, thereby facilitating the fan to dissipate heat.

[0040] Specifically, regarding the sealing cover 602 remaining open after the drive shaft 701 rotates rapidly, when the drive rod 711 moves upward along the inclined wall of the V-groove 731, the bushing 703 drives the sliding rod 702 to move downward and open the housing 601. When the drive rod 711 moves downward along the inclined wall of the V-groove 731, the sliding rod 702 moves upward and drives the sealing cover 602 to close the housing 601. Since the width of the V-groove 731 is less than its depth, when the drive shaft 701 rotates rapidly, the drive rod 711 will continuously abut against the upper end face of the bushing 703, thereby ensuring that the sealing cover 602 remains open during its operation.

[0041] The sliding rod 702 is perpendicular to the first limiting frame 704 and the second limiting frame 705. The first limiting frame 704 and the second limiting frame 705 are horizontally distributed inside the housing 601. The drive shaft 701, bushing 703, sliding rod 702 and return spring 707 are coaxially distributed to ensure reliable operation of the linkage action. The first limiting frame 704 is used to support the return spring 707, and the second limiting frame 705 is used to assist in guiding the sliding rod 702 to ensure that its axial movement can be carried out stably.

[0042] In order to achieve the circumferentially fixed axial sliding setting of the sliding rod 702 relative to the first limiting frame 704 and the second limiting frame 705, the sliding rod 702 is connected to the first limiting frame 704 and the second limiting frame 705 by a sliding key, so that the sliding rod 702 can maintain the axial sliding state. When the drive rod 711 pushes the inclined wall of the V-groove 731, it ensures the axial movement of the sliding rod 702, thereby opening the heat sink 6.

[0043] In addition, the cooling fan 606 includes a motor and fan blades. The fan blades are mounted on the output shaft of the motor. When the motor is working, it can drive the fan blades to rotate, thereby realizing the function of blowing air for heat dissipation. The end of the output shaft is fixedly connected to the drive shaft 701. While driving the fan blades to rotate, it can also drive the drive shaft 701 to rotate.

[0044] Working principle: After the anesthetic waste gas enters the treatment device through the inlet pipe 4, it first enters the condensation chamber 205 for condensation and water removal. When the anesthetic waste gas comes into contact with the condensation wall 202 and is condensed, the condensate can flow to the liquid outlet channel 204 under the dual action of gravity and airflow, and then gather into the water collection chamber 103. The anesthetic waste gas with water vapor removed floats up, is filtered through the activated carbon filter plate 5, and then is discharged into the external environment through the outlet pipe 301. When the semiconductor cooling chip 604 is working, the cold energy generated by its cooling surface is transferred to the refrigerant in the liquid storage box 603, and then transferred to the condenser wall 202 through the refrigerant. The heat generated by its heating surface can be quickly discharged to the external environment along the heat dissipation channel 104 under the dual action of the heat sink 605 and the cooling fan 606. When the cooling fan 606 drives the drive shaft 701 to rotate rapidly, the drive rod 711 pushes the inclined wall of the V-groove 731 and causes the sliding rod 702 to move downward against the elastic force of the return spring 707 until the drive rod 711 disengages from the V-groove 731. At this time, the sliding rod 702 keeps the sealing cover 602 open, thus facilitating the fan to dissipate heat. When the drive shaft 701 is stationary, the sliding rod 702, under the action of the return spring 707, makes the inclined wall of the V-groove 731 abut against the drive rod 711. At this time, the sealing cover 602 abuts against the housing 601 and is in a closed state, ensuring the heat dissipation shell 6's cold insulation effect on the bottom surface of the condensation shell 2.

[0045] Example 3, as Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 8 As shown, based on Embodiment 2, the present invention also provides a temperature control mechanism inside the housing 601. The temperature control mechanism is fixedly installed inside the housing 601 by two opposing support plates 914. The two support plates 914 are horizontally arranged and located between the first limiting frame 704 and the second limiting frame 705.

[0046] When the heating surface of the thermoelectric cooler 604 reaches the preset operating temperature, the temperature control mechanism drives the sliding rod 702 downward, causing the drive rod 711 to disengage from the V-groove 731. During cooling, the sliding rod 702 can be activated by the cooling fan 606 to open the heat sink 6. After the heating surface of the thermoelectric cooler 604 reaches the preset operating temperature, the temperature control mechanism pushes the sliding rod 702 further downward. While the heat sink 6 remains open, the sliding rod 702 can disengage from the drive shaft 701, reducing the load on the cooling fan 606. After cooling ends and the cooling fan 606 is turned off, the temperature control mechanism can also delay closing the heat sink 6 to prevent heat accumulation inside the heat sink 6 and improve heat dissipation efficiency.

[0047] The temperature control mechanism includes an insulating rod 913 fixedly installed between two support plates 914. The insulating rod 913 has, from top to bottom, a bimetallic strip 901, a contact piece 907, a first metal spring 905, and a bracket 911 spaced apart. A connecting post 902 is installed between the distal end of the bimetallic strip 901 and the distal end of the first metal spring 905. Both ends of the connecting post 902 are fixedly connected to the bimetallic strip 901 and the first metal spring 905. A stationary contact 908 is provided on the bottom surface of the distal end of the contact piece 907. A... There is a second metal spring 906, and a third metal spring 909 is installed on the second metal spring 906. A metal movable contact 903 is provided between the third metal spring 909 and the first metal spring 905. A movable contact 904 is installed on the top surface of the metal movable contact 903. A first deflector ring 910 is fixedly provided on the outside of the movable contact 904. A second deflector ring 915 is fixedly sleeved on the lower part of the sliding rod 702. The second deflector ring 915 is located above the abutment ring 706, and the downward movement distance of the first deflector ring 910 is greater than the depth of the V-groove 731.

[0048] During cooling, the heating surface of the semiconductor cooling chip 604 gradually heats up and transfers heat to the bimetallic strip 901, which also gradually heats up. When the bimetallic strip 901 is below the operating temperature, the moving contact 904 contacts the stationary contact 908. When the bimetallic strip 901 heats up to the operating temperature, the moving contact 904 moves downward under the action of the metal moving contact 903, and moves the second deflector 915 downward through the first deflector 910. Since the downward distance of the first deflector 910 is greater than the depth of the V-groove 731, the V-groove 731 can be completely disengaged from the drive rod 711, avoiding friction between the drive rod 711 and the bushing 703, thereby reducing the load on the cooling fan 606 during operation and reducing the operating power of the cooling fan 606.

[0049] The bracket 911 has an adjusting screw 912 installed at its far end. The adjusting screw 912 is in contact with the second metal spring 906. By turning the adjusting screw 912, the operating temperature of the bimetallic strip 901 can be adjusted. When the operating temperature of the bimetallic strip 901 is reached, the bimetallic strip 901 will bend downward and undergo elastic deformation until the temperature of the bimetallic strip 901 drops below the operating temperature and then resets.

[0050] Working principle: During cooling, the thermoelectric cooler 604 and the cooling fan 606 are turned on simultaneously. As the cooling fan 606 rotates, the drive rod 711 pushes the bushing 703 downward, which in turn drives the sealing cover 602 downward through the sliding rod 702 to instantly open the heat sink 6. After the heating surface of the thermoelectric cooler 604 heats up, the heat is transferred to the bimetallic strip 901. After the bimetallic strip 901 heats up to the operating temperature, it deforms and drives the metal moving contact 903 and the moving contact 904 downward. The first deflector ring 910 deflects the second deflector ring 915 and moves the sliding rod 702 downward to keep it in the open state. At this time, the load on the cooling fan 606 is reduced.

[0051] After the cooling fan 606 is turned off, the drive rod 711 remains stationary. At this time, the sliding rod 702 is still in the downward position under the action of the first dial ring 910, and the heat sink 6 is still in the open state. After the temperature of the bimetallic strip 901 drops below the operating temperature, the sliding rod 702 is driven to move upward under the action of the return spring 707 to drive the sealing cover 602 to fit with the housing 601 and close the heat sink 6. This can delay the closing of the heat sink 6, avoid heat accumulation in the heat sink 6, and improve heat dissipation efficiency.

[0052] Example 4, as Figure 6 and Figure 7 As shown, based on Embodiment 3, in order to obtain the temperature of the heating surface of the semiconductor cooling chip 604 more accurately and quickly, a heat-conducting wire 8 is added here. One end of the heat-conducting wire 8 is connected to the bimetallic strip 901, and the other end is connected to the heating surface of the semiconductor cooling chip 604 or the heat sink 605, thereby realizing accurate and rapid conduction of the temperature of the heating surface of the semiconductor cooling chip 604 and improving the response speed and accuracy of the temperature control mechanism.

[0053] In summary, this invention proposes an anesthetic waste gas treatment device. During cooling, the fan can drive the sealing cover 602 to move down and open the heat dissipation shell 6 to facilitate the fan's air blowing and heat dissipation. After cooling, it can automatically seal the heat dissipation shell 6 to avoid the problem of the condensation wall 202 absorbing ambient heat and accelerating the temperature rise. Furthermore, the sealing cover 602 is linked with the heat dissipation fan 606, requiring no additional power source. The structure is simple, reliable, and stable.

[0054] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0055] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0056] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0057] Based on the preferred embodiments of the present invention described above, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An anaesthetic waste gas treatment apparatus characterised in that: The utility model provides a water collecting tank, a condensing shell and a filter shell are connected in turn from bottom to top, the inner side of water collecting tank is equipped with water collecting cavity and heat dissipation channel which are independent, the bottom of condensing shell is connected with heat dissipation shell, heat dissipation shell is embedded in heat dissipation channel, the inside of filter shell is equipped with activated carbon filter plate, the upper of filter shell is equipped with air inlet pipe, one end of air inlet pipe passes through activated carbon filter plate and is connected with condensing cavity in condensing shell, condensing cavity is connected with water collecting cavity through liquid outlet channel, and condensing cavity is located below activated carbon filter plate, The heat dissipation shell comprises a shell body connected with the condensing shell, a sealing cover is arranged below the shell body, a refrigeration mechanism for refrigerating the condensing shell is arranged in the shell body, the refrigeration mechanism comprises a semiconductor refrigeration sheet connected with the condensing shell, a heat dissipation fan is arranged below the semiconductor refrigeration sheet, a transmission mechanism for driving the sealing cover to move up and down relative to the shell body is arranged between the heat dissipation fan and the sealing cover, and when the refrigeration mechanism is refrigerating, the heat dissipation fan drives the sealing cover to move downward to open the heat dissipation shell through the transmission mechanism, and after refrigeration, the sealing cover is reset to move upward to close the heat dissipation shell through the transmission mechanism.

2. The anesthetic waste gas treatment device of claim 1, wherein: The transmission mechanism comprises a drive shaft connected with an output shaft of the heat dissipation fan, a second limiting frame fixedly connected with the shell body is arranged below the drive shaft, a sliding rod is arranged through the second limiting frame, the upper end of the sliding rod is connected with the drive shaft through a transmission assembly, the lower end of the sliding rod is fixedly connected with the sealing cover, and a abutting ring is fixedly arranged on the outer circumferential surface of the sliding rod, and a reset spring is arranged between the abutting ring and the top surface of the second limiting frame.

3. The anesthetic waste gas abatement device of claim 2, wherein: The transmission assembly comprises a shaft sleeve fixedly installed on the upper end of the sliding rod, the drive shaft is embedded in the inner side of the shaft sleeve, a V-shaped groove is arranged on the shaft sleeve, a drive rod is fixedly connected with the outer circumferential surface of the drive shaft, the drive rod extends into the V-shaped groove, and the drive rod rotates with the drive shaft and abuts against the inclined wall of the V-shaped groove.

4. The anesthetic waste gas abatement device of claim 3, wherein: A first limiting frame is arranged above the second limiting frame, the first limiting frame is fixedly connected with the shell body, the sliding rod slides through the first limiting frame, and the drive shaft, the shaft sleeve, the sliding rod and the reset spring are coaxially distributed.

5. The anesthetic waste gas abatement device of claim 1, wherein: The water collecting tank comprises an outer shell and an inner shell which are integrally formed and coaxially distributed, the water collecting cavity is located between the outer shell and the inner shell, and the heat dissipation channel is located on the inner side of the inner shell.

6. The anesthetic waste gas abatement device of claim 5, wherein: The condensing shell comprises a sleeve embedded in the inner side of the outer shell, a condensing wall is connected with the inner side of the sleeve through a support rod, the condensing wall abuts against the top of the inner shell, and the liquid outlet channel is arranged between adjacent two support rods.

7. The anesthetic waste gas abatement device of claim 6, wherein: The condensing wall adopts a conical surface structure, the lower end of the condensing wall extends into the water collecting cavity, and the shell body is fixedly installed on the bottom surface of the condensing wall.

8. The anesthetic waste gas abatement device of claim 7, wherein: The refrigeration mechanism further comprises a liquid storage box fixedly connected with the bottom surface of the condensing wall, the liquid storage box is located inside the shell, the refrigeration surface of the semiconductor refrigeration sheet is connected with the bottom surface of the liquid storage box, the heat generating surface of the semiconductor refrigeration sheet is connected with a heat sink, and the heat dissipation fan is installed on the side of the heat sink opposite to the semiconductor refrigeration sheet.

9. The anesthetic waste gas abatement device of claim 4, wherein: The inside of the shell is further provided with a temperature control mechanism, the temperature control mechanism is located between the first limiting frame and the second limiting frame, and when the heat generating surface of the semiconductor refrigeration sheet reaches a preset action temperature, the temperature control mechanism drives the sliding rod to move downward to make the driving rod disengage from the V-shaped groove.

10. The anesthetic waste gas treatment device according to any one of claims 1 to 9, characterized in that: The air inlet pipe adopts a right-angle elbow pipe structure, the vertical section of the air inlet pipe penetrates through the activated carbon filter plate, the horizontal section of the air inlet pipe penetrates through the side wall of the filter shell, and the top of the filter shell is provided with an air outlet pipe in communication with the inside filtering cavity.

Images