Waste anesthetic gas purification filter

Abstract

An anesthetic waste gas purification filter belongs to the field of medical instruments. An air inlet is formed in the bottom end of the side face of the shell, and a valve is arranged on the air inlet; a filter barrel in sliding fit with the shell is arranged in the shell, and activated carbon is loaded in the filter barrel; the upper end of the filter barrel is in threaded connection with a filter plate; a sealing gasket is fixedly connected to the outer circular surface of the filtering barrel; the inner wall of the shell is provided with a vertical sliding groove and an arc-shaped groove which communicates with the sliding groove and is formed in the horizontal direction. The sliding groove and the arc-shaped groove are both in sliding fit with the sliding block. The other side of the sliding block is fixedly connected with a limiting rod; a vertical through hole which is in sliding fit with the limiting rod is formed in the filtering barrel. According to the anesthetic gas filtering device, the filtering barrel can be conveniently taken out of the shell, then activated carbon can be conveniently replaced, meanwhile, the filtering barrel can be moved downwards, residual gas in the shell can be conveniently filtered after anesthetic gas is filtered, and the situation that residual anesthetic gas at the lower end of the filtering barrel cannot be filtered is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of anaesthetic exhaust gas purification filters, belong to medical instrument field. BACKGROUND

[0002] With the increasing application of inhalation anesthetics in operating room, the anesthetic gas or vapor diffused in operating room during operation will inevitably cause air pollution in operating room environment. Long-term exposure to this trace anesthetic exhaust gas contaminated environment can adversely affect the physical and mental health of operating room staff, and direct discharge can cause environmental pollution.

[0003] The utility model discloses a kind of anaesthetic exhaust gas filtering device, and its although can be used by the mutual cooperation of first motor, shaft, fan leaf, heater body, first filter screen, second filter screen, ultraviolet sterilization lamp and UV sterilization lamp, reach the purpose that anaesthetic exhaust gas filtering device filtering effect is good, to solve the problem of general anaesthetic exhaust gas filtering device filtering effect is not good, so that medical staff can work more happily, make the air in operating room more clean and fresh, further meet the use demand of people, to bring the purpose of convenient for people's life. But in actual use, there are often gas residues in the tank for filtering, and the new type cannot solve the problem of gas residues, so it is improved. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the above problems existing in the background art, and provides an anaesthetic exhaust gas purification filter.

[0005] The utility model achieves the above-mentioned purposes by adopting the technical scheme as follows.

[0006] An anaesthetic exhaust gas purification filter, comprising a shell; the side bottom end of the shell is provided with an air inlet, and a valve is arranged on the air inlet; the inside of the shell is provided with a filter barrel in sliding cooperation therewith, and activated carbon is loaded in the inside of the filter barrel; a filter plate is connected to the upper end of the filter barrel in a threaded manner; a sealing gasket is fixedly connected to the outer circumferential surface of the filter barrel; a vertical sliding groove and an arc-shaped groove arranged in a horizontal direction and communicating with the sliding groove are arranged on the inner wall of the shell; the sliding groove and the arc-shaped groove are in sliding cooperation with a sliding block; a limiting rod is fixedly connected to the other side of the sliding block; a vertical perforation in sliding cooperation with the limiting rod is arranged on the filter barrel.

[0007] Compared with the prior art, the anaesthetic exhaust gas purification filter has the advantages that the filter barrel can be easily taken out of the shell, and the activated carbon can be easily replaced. Attached Figure Description

[0008] Figure 1 This is a front view of an anesthetic waste gas purification filter according to this utility model;

[0009] Figure 2 This is a front view of the outer shell of an anesthetic waste gas purification filter according to this utility model;

[0010] Figure 3 This is a front view of the filter barrel of an anesthetic waste gas purification filter according to this utility model;

[0011] Figure 4 This is a front view of the slider of an anesthetic waste gas purification filter according to this utility model.

[0012] In the diagram: 1. Outer shell; 2. Valve; 3. Air inlet; 4. Pull rod; 5. Connecting rod; 6. Filter plate; 7. Filter barrel; 8. Sealing gasket; 9. Slide groove; 10. Arc groove; 11. Slider; 12. Limiting rod; 13. Activated carbon; 14. Perforation. Detailed Implementation

[0013] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0014] Specific implementation method one: as follows Figures 1-4 As shown, this embodiment describes an anesthetic waste gas purification filter, including a housing 1; an air inlet 3 is provided at the bottom side of the housing 1, and a valve 2 is provided on the air inlet 3; a filter barrel 7 is provided inside the housing 1 and slidably engaged with it, and activated carbon 13 is loaded inside the filter barrel 7; a filter plate 6 is threadedly connected to the upper end of the filter barrel 7; a sealing gasket 8 is fixedly connected to the outer circumference of the filter barrel 7; a vertical sliding groove 9 and a horizontally arranged arc-shaped groove 10 communicating with the sliding groove 9 are provided on the inner wall of the housing 1; both the sliding groove 9 and the arc-shaped groove 10 are slidably engaged with a slider 11; a limiting rod 12 is fixedly connected to the other side of the slider 11; and a vertical through hole 14 is provided on the filter barrel 7 and slidably engaged with the limiting rod 12. After the slider 11 moves into the arc-shaped groove 10, it can effectively limit the upward movement of the filter barrel 7 under the influence of gas pressure, thereby preventing the filter barrel 7 from moving to the side of the sliding groove 9 and causing air leakage.

[0015] A connecting rod 5 is fixedly connected to the upper end of the filter plate 6, and a pull rod 4 is fixedly connected to the upper end of the connecting rod 5. The pull rod 4 facilitates the up and down movement of the filter barrel 7.

[0016] The filter barrel 7 and the filter plate 6 are located below the sliding block 11.

[0017] When the sliding block 11 is located in the arc-shaped groove 10, the bottom end of the limiting rod 12 is in contact with the bottom surface of the shell 1.

[0018] When the sliding block 11 is located in the arc-shaped groove 10, the sealing gasket 8, the filter plate 6 and the filter barrel 7 are located below the arc-shaped groove 10, thereby avoiding that the filter barrel 7 is located at the side of the sliding groove 9 during use, and air leakage is caused.

[0019] The limiting rod 12 is in a rectangular cross section, thereby facilitating movement of the limiting rod 12 driven by the filter barrel 7, and further facilitating movement of the sliding block 11.

[0020] The inner wall of the perforation 14 is provided with a sealing strip.

[0021] The working principle of the utility model is as follows: when the utility model is used, the activated carbon 13 is put into the filter barrel 7, then the filter plate 6 is screwed, the filter barrel 7 is pushed into the shell 1 through the pull rod 4, and is moved to the position below the arc-shaped groove 10, finally the limiting rod 12 is inserted into the perforation 14, and the sliding block 11 is slid into the sliding groove 9, the limiting rod 12 is pushed downward until the sliding block 11 moves to the position of the arc-shaped groove 10, then the pull rod 4 is rotated, the filter plate 6 and the filter barrel 7 are driven to rotate through the connecting rod 5, and the limiting rod 12 is driven to rotate, so as to drive the sliding block 11 to slide into the arc-shaped groove 10 and limit upward movement of the filter barrel 7.

[0022] Then the pipeline is connected to the air inlet 3, the valve 2 is opened, the gas is introduced, the gas is purified through the filter barrel 7 and the activated carbon 13, and is discharged to the subsequent purification step through the filter plate 6, and the valve 2 is closed after filtration is completed.

[0023] Finally, the pull rod 4 is pushed downward, the filter barrel 7 is driven to move downward, the space at the bottom of the filter barrel 7 is reduced, and the remaining gas in the shell 1 is driven to pass through the filter barrel 7, the activated carbon 13 and the filter plate 6 to complete filtration, thereby avoiding remaining gas in the shell 1.

[0024] After use, the limiting rod 12 is taken out, the pull rod 4 is pulled, and the filter barrel 7 is taken out, thereby facilitating replacement of the activated carbon 13.

[0025] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of equivalents of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims to which they relate.

[0026] Furthermore, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An anesthetic waste gas purification filter, characterized by: The utility model provides an active carbon filter, including shell (1), the side bottom of shell (1) is equipped with air inlet (3), be equipped with valve (2) on air inlet (3), the inside of shell (1) is equipped with with its sliding fit filter bucket (7), and the inside of filter bucket (7) is loaded with activated carbon (13), the upper end of filter bucket (7) is connected with filter plate (6) through screw thread, the outer circular surface of filter bucket (7) is fixedly connected with sealing washer (8), the inner wall of shell (1) is equipped with vertical sliding slot (9) and the arc slot (10) of horizontal direction setting with sliding slot (9) intercommunication, sliding slot (9), arc slot (10) all with sliding block (11) sliding fit, the other side of sliding block (11) is fixedly connected with limit rod (12), and filter bucket (7) is equipped with vertical with limit rod (12) sliding fit perforation (14).

2. An anesthetic waste gas purification filter according to claim 1, characterized in that: The upper end of the filter plate (6) is fixedly connected with a connecting rod (5), and the upper end of the connecting rod (5) is fixedly connected with a pull rod (4).

3. An anesthetic waste gas purification filter according to claim 2, characterized in that: The filter bucket (7) and the filter plate (6) are located below the sliding block (11).

4. An anesthetic waste gas purification filter according to claim 3, characterized in that: When the sliding block (11) is located in the arc-shaped groove (10), the bottom end of the limiting rod (12) is in contact with the bottom surface of the shell (1).

5. An anesthetic waste gas purification filter according to claim 4, characterized in that: When the sliding block (11) is located in the arc-shaped groove (10), the sealing washer (8), the filter plate (6), and the filter bucket (7) are located below the arc-shaped groove (10).

6. An anesthetic waste gas purification filter according to claim 5, characterized in that: The cross section of the limiting rod (12) is rectangular.

7. An anesthetic waste gas purification filter according to claim 6, characterized in that: A sealing strip is arranged on the inner wall of the perforation (14).

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