A disinfection device used in an isolation unit for transporting infectious disease patients

Abstract

The present invention belongs to the technical field of aviation medical rescue, and specifically relates to a disinfection device used in an isolation unit for transporting infectious patients, comprising a manual pressurizing device and a rotating nozzle; the manual pressurizing device is connected to the rotating nozzle through a fastening mechanism; the device has a compact structural design, strong practicality, good spraying and disinfection effect, the nozzle rotates automatically, the disinfectant is sprayed in a mist state, the disinfection area is large, and the spraying range is uniform, which meets the use requirements of uniform spraying and disinfection at various positions in a buffer channel.

Description

Technical Field

[0001] The invention belongs to the technical field of aviation medical rescue, and in particular relates to a disinfection device used in an isolation unit for transporting patients with infectious diseases. Background Art

[0002] During the aeromedical evacuation of infectious disease patients, the isolation unit for transporting infectious disease patients is usually an isolation space. The negative pressure difference between the enclosed space of the cabin and the outside world is used to solve the problem of virus leakage in the cabin. However, in order to meet the long-term transportation requirements of infectious disease patients, it is usually necessary to put medical supplies or personal items into the isolation unit for transporting infectious disease patients. At this time, a buffer channel must be set up. However, during use, once the airtight zipper between the buffer channel and the isolation unit cabin is opened, the buffer channel will be contaminated by pathogens. If the space needs to be used again, a disinfection device must be designed to disinfect the buffer channel to meet the requirements of repeated use.

[0003] Normally, for the disinfection of a small confined space, spraying disinfectant is used. The disinfectant is usually 75% alcohol liquid or 84 disinfectant, which has the best disinfection effect. Therefore, it is necessary to design a disinfection device that can spray in a mist and the nozzle can rotate automatically to meet the requirements of uniform spraying and disinfection at various locations in a small confined space. Summary of the invention

[0004] The purpose of the present invention is to address the above-mentioned defects of the prior art and to provide a disinfection device for use in an isolation unit for transporting infectious patients. The device has a compact structure and strong practicability, good spraying and disinfection effect, and the nozzle rotates automatically. The disinfectant is sprayed in a mist form, with a large disinfection area and a uniform spraying range, which meets the requirements of uniform spraying and disinfection at various positions in the buffer channel.

[0005] The technical solution of the present invention:

[0006] A disinfection device used in an isolation unit for transporting patients with infectious diseases, comprising a manual pressurizing device and a rotating nozzle; the manual pressurizing device is connected to the rotating nozzle through a fastening mechanism;

[0007] The manual pressurizing device comprises an outer cylinder with a hollow cylindrical structure, a front end of the outer cylinder being a "cross"-shaped interface, a piston being installed at the rear end of the inner side of the outer cylinder, a spring being installed at the inner end of the piston, the other end of the spring being pressed at the constricted portion of the front end of the outer cylinder, the outer end of the piston being sealed and fixed by an end cover, and the outer end of the piston being connected to a piston handle; an inner V-shaped sleeve A is installed at the lower side of the "cross"-shaped interface of the outer cylinder through a threaded connection, a ball A is arranged at the upper inner side of the inner V-shaped sleeve A, a slender liquid suction tube is installed below the ball A, and a liquid storage bottle at the bottom is fixed at the lower inner side of the inner V-shaped sleeve A through a threaded connection; an inner V-shaped sleeve B is installed at the upper inner side of the inner V-shaped sleeve B through a threaded connection, a ball B is arranged at the upper inner side of the inner V-shaped sleeve B, an L-shaped elbow is installed above the ball B, and a rotating nozzle is added to the end of the L-shaped elbow. The cross-shaped interface of the outer tube is connected to one end of the bolt column, and the other end of the bolt column is connected to one end of the inner fastening pressing plate B, and the outer fastening pressing plate B is connected to the other end of the inner fastening pressing plate B. An inner fastening pressing plate A and an outer fastening pressing plate A are arranged between the L-shaped elbow and the rotating nozzle;

[0008] One side of the inner fastening pressing piece A and the inner fastening pressing piece B is provided with an external threaded connecting shaft, which passes through the opening of the cabin isolation cover and is connected with the outer fastening pressing piece A and the outer fastening pressing piece B through threads.

[0009] A pressurized rotating mechanism and a pressurized mist spraying mechanism are arranged inside the rotary nozzle.

[0010] The pressurized rotating mechanism includes a sleeve front cover, a sleeve rear cover, a blade rotating fixed shaft and a blade rotating shaft; the sleeve front cover is connected to the L-shaped elbow through a thread, the blade rotating fixed shaft is installed inside the sleeve front cover, and four U-shaped grooves are arranged on the periphery of the blade rotating fixed shaft. The circumference of the U-shaped groove surrounds the large diameter part of the blade rotating fixed shaft, and the direction at the outlet is the tangent direction of the circumference. The blade rotating shaft is installed on the small diameter part of the blade rotating fixed shaft, and the blade rotating shaft is positioned by fastening screws A; the sleeve rear cover is pressed against the sleeve front cover, a sealing ring is arranged in the middle, and the V-shaped sleeve is fixed to the blade rotating shaft by fastening screws, and a sealing ring is arranged between the inner wall of the V-shaped sleeve and the outer side of the blade rotating shaft.

[0011] The disinfectant in the L-shaped elbow passes through the four U-shaped grooves of the blade rotating fixed shaft to form a fluid with a relatively high speed, and the outlet direction is the tangential direction, which impacts the blades of the blade rotating shaft, causing the blade rotating shaft to generate a rotating force, resulting in rapid rotation.

[0012] The depth of the four U-shaped grooves arranged on the periphery of the blade rotating fixed shaft is 2 mm.

[0013] The pressurized mist spraying mechanism comprises a V-shaped sleeve, a sleeve nozzle, a pressurized plug and a perforated inner cylinder. The V-shaped sleeve is fixed on the blade rotating shaft by a fastening screw and is arranged in two directions at an angle of 90°, and a pressurized mist spraying mechanism is arranged in each direction.

[0014] The pressurized mist spraying mechanism divides the disinfectant into two paths through the inner cavity. After the disinfectant flows through the perforated inner cylinder, the pressure generated by manual squeezing quickly forms an internal high pressure at the pressurized plug, and the disinfectant is sprayed out through the small hole at the top of the perforated inner cylinder, forming a high-pressure fluid in the gap between the inner side of the sleeve nozzle and the outer side of the perforated inner cylinder, and flows through the inner hole of the pressurized plug to the gap between the sleeve nozzle and the pressurized plug, further increasing the pressure, and finally sprayed out through the rectangular nozzle opening of the sleeve nozzle to form a mist-like spray disinfectant.

[0015] Beneficial effects:

[0016] The present invention solves the problem of disinfection in a buffer channel of an isolation unit for transporting infectious patients, provides a disinfection device for use in a narrow space in a buffer channel of an isolation unit for transporting infectious patients, realizes the use requirement of spraying disinfection in a confined space, has the advantages of automatic rotation of the nozzle, spraying of disinfectant in mist form, large disinfection area, wide spraying range, etc., and meets the use requirement of uniform spraying disinfection at various positions in the buffer channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the disinfection device of the present invention;

[0018] Figure 2 It is a structural diagram of the rotary nozzle of the disinfection device of the present invention.

[0019] In the figure: 1. piston handle; 2. end cover; 3. piston; 4. outer cylinder; 5. spring; 6. inner V-shaped sleeve B; 7. ball B; 8. L-shaped elbow; 9. rotating nozzle; 10. inner fastening plate A; 11. cabin isolation cover; 12. outer fastening plate A; 13. inner fastening plate B; 14. outer fastening plate B; 15. bolt column; 16. liquid storage bottle; 17. suction tube; 18. ball A; 19. inner V-shaped sleeve A; 20. sleeve front cover; 21. blade rotating shaft; 22. sleeve rear cover; 23. fastening screw B; 24. V-shaped sleeve; 25. sleeve nozzle; 26. sealing ring; 27. pressure plug; 28. inner cylinder with holes; 29. ​​blade rotating fixed shaft; 30. fastening screw A. DETAILED DESCRIPTION

[0020] In order to better understand the present invention, the following Figure 1-2 The present invention is further described in detail with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1 As shown, a disinfection device used in an isolation unit for transporting infectious patients includes a manual pressurizing device, a fastening mechanism and a rotating nozzle 9.

[0022] The manual pressurizing device includes a piston handle 1, an end cover 2, a piston 3, an outer cylinder 4, a spring 5, an inner V-shaped sleeve A19, an inner V-shaped sleeve B6, a ball A18, a ball B7, an L-shaped elbow 8, a bolt column 15, a liquid storage bottle 16, and a pipette 17.

[0023] The manual pressurizing device comprises an outer tube 3 which is a hollow cylinder, and a front end which is a "cross" shaped interface. A piston 1 is installed at the rear end of the inner side of the outer tube 3. A spring 5 is installed at the inner end of the piston 3. The other end of the spring 5 is pressed at the front end of the outer tube 3. The outer end of the piston 3 is sealed and fixed by an end cover 2. The outer end of the piston 3 is connected to a piston handle 1. An inner V-shaped sleeve A19 is installed at the lower side of the "cross" shaped interface of the outer tube 3 through a threaded connection. A ball A18 is arranged at the upper inner side of the inner V-shaped sleeve A19, and a slender liquid pipette 17 is installed below the ball A18. The lower inner part of the inner V-shaped sleeve A19 is fixed with the liquid storage bottle 16 at the bottom by threads; the upper side of the "cross"-shaped interface of the outer cylinder 3 is connected with the inner V-shaped sleeve B6 by threads, and a ball B7 is arranged on the upper inner side of the inner V-shaped sleeve B6, and an L-shaped elbow 8 is installed above the ball B7, and a rotating nozzle 9 is installed at the end of the L-shaped elbow 8; the "cross"-shaped interface of the outer cylinder 3 is connected to one end of the bolt column 15, and the other end of the bolt column 15 is connected to one end of the inner fastening plate B13, and the outer fastening plate B14 is connected to the other end of the inner fastening plate B13. An inner fastening plate A10 and an outer fastening plate A12 are arranged between the L-shaped elbow 8 and the rotating nozzle 9,

[0024] One side of the inner fastening pressing piece A10 and the inner fastening pressing piece B13 is provided with an external threaded connecting shaft, which passes through the opening of the cabin isolation cover 11 and is connected to the outer fastening pressing piece A12 and the outer fastening pressing piece B14 through threads.

[0025] Manually squeeze one end of the piston handle 1, and the piston at the other end of the piston handle 1 moves forward to squeeze the spring 5, and the gas flows along the outer tube 3 to the side of the "cross" interface. Since the lower side of the "cross" interface of the outer tube 3 is a sealing structure, the gas cannot be discharged. The gas can only flow toward the upper side along the "cross" interface of the outer tube 3, pushing the ball B7 out of the gap and space, and discharged through the L-shaped elbow 8 along with the rotating nozzle 9. When the piston moves to the maximum displacement and the spring 5 is compressed to the maximum amount, the piston handle 1 is manually released, and the piston moves outward under the action of the spring force. The internal vacuum degree increases, and the air cannot enter the inner side of the outer tube 3 because the upper side of the "cross"-shaped interface of the outer tube 3 is blocked by the ball B7. Under the action of the internal vacuum force, the ball A18 moves upward, and the disinfectant in the liquid storage bottle 16 is sucked into the outer tube 3 through the pipette 17 and the inner side of the inner V-shaped sleeve A19. The piston handle 1 is manually squeezed several times repeatedly to exhaust all the gas in the outer tube 3 and fill the outer tube 3 with disinfectant. When the outer tube 3 is filled with disinfectant, one end of the piston handle 1 is manually squeezed, and the piston at the other end of the piston handle 1 moves forward, squeezing the spring 5, and the disinfectant flows toward one side of the "cross"-shaped interface of the outer tube 3. Since the ball A18 on the lower side of the "cross"-shaped interface of the outer tube 3 is tightly matched with the inner V-shaped sleeve A19 under the action of its own gravity, the liquid cannot flow down, and the disinfectant can only flow along the upper side of the "cross"-shaped interface of the outer tube 3, pushing the ball B7 out of the gap and space, and spraying out through the L-shaped elbow 8 with the rotating nozzle 9 to achieve the purpose of disinfection. When the piston moves to the maximum displacement and the spring 5 is compressed to the maximum amount, the piston handle 1 is manually released, and the piston moves outward under the action of the spring force. The upper side of the "cross" interface of the outer tube 3 is blocked by the ball B7, and the disinfectant cannot flow back into the inner side of the outer tube 3. The ball A18 moves upward under the action of the internal force, and the disinfectant in the liquid storage bottle 16 is sucked into the outer tube 3 through the suction tube 17 and the inner side of the inner V-shaped sleeve A19. This cycle is repeated to achieve the purpose of spraying and disinfection.

[0026] like Figure 2 As shown, the rotary nozzle 9 includes a sleeve front cover 20, a blade rotating fixed shaft 29, a blade rotating shaft 21, a sleeve rear cover 22, a fastening screw A30, a fastening screw B23, a V-shaped sleeve 24, a perforated inner cylinder 28, a pressurized plug 27, a sealing ring 26, and a sleeve nozzle 25.

[0027] A pressurized rotating mechanism and a pressurized mist spraying mechanism are arranged inside the rotating nozzle 9. The pressurized rotating mechanism comprises a sleeve front cover, a sleeve rear cover, a blade rotating fixed shaft and a blade rotating shaft. The sleeve front cover 20 is connected to the L-shaped elbow 8 by a thread. The blade rotating fixed shaft 29 is installed inside the sleeve front cover 20. Four U-shaped grooves with a depth of 2 mm are arranged on the periphery of the blade rotating fixed shaft 29. The circumference of the U-shaped groove surrounds the large diameter part of the blade rotating fixed shaft 29. The direction at the outlet is the tangent direction of the circumference. The blade rotating shaft 21 is installed on the small diameter part of the blade rotating fixed shaft 29. The blade rotating shaft is positioned by tightening screws A30. The sleeve rear cover 22 is pressed against the sleeve front cover 20, and a sealing ring is arranged in the middle. The V-shaped sleeve 24 is fixed to the blade rotating shaft 21 by tightening screws. A sealing ring is arranged between the inner wall of the V-shaped sleeve 24 and the outer side of the blade rotating shaft 21.

[0028] The starting procedure is that the disinfectant passes through the four U-shaped grooves of the blade rotating fixed shaft 29 in the L-shaped elbow 8 to form a fluid with a relatively high speed, and the outlet direction is the tangential direction, which impacts the blades of the blade rotating shaft 21, causing the blade rotating shaft 21 to generate a rotating force, resulting in rapid rotation.

[0029] The pressurized mist spraying mechanism comprises a V-shaped sleeve 24, a sleeve nozzle 25, a pressurized plug 27 and a perforated inner cylinder 28. The V-shaped sleeve 24 is fixed on the blade rotating shaft 21 by a fastening screw, and is in two directions at a 90° angle, and a pressurized mist spraying mechanism is set in each direction. The starting working procedure of the pressurized mist spraying mechanism is that the disinfectant is divided into two paths through the inner cavity. After the disinfectant flows through the perforated inner cylinder 28, due to the pressure generated by manual squeezing, an internal high pressure is quickly formed at the pressurized plug 27, and the disinfectant is sprayed through the small hole at the top of the perforated inner cylinder 28, forming a high-pressure fluid in the gap between the inner side of the sleeve nozzle 25 and the outer side of the perforated inner cylinder 28, and flows through the inner hole of the pressurized plug 27 to the gap between the sleeve nozzle 25 and the pressurized plug 27, further increasing the pressure, and finally spraying through the rectangular nozzle opening of the sleeve nozzle 25 to form a mist-like spray disinfectant.

Claims

1. A disinfection device used in an isolation unit for transporting infectious patients, comprising a manual pressurizing device and a rotating nozzle; characterized in that: The manual pressurizing device is connected to the rotating spray head via a fastening mechanism; The manual pressurizing device comprises an outer cylinder with a hollow cylindrical structure, the front end of the outer cylinder is a "cross"-shaped interface, a piston is installed at the rear end of the inner side of the outer cylinder, a spring is installed at the inner end of the piston, the other end of the spring is pressed at the constricted part of the front end of the outer cylinder, the outer end of the piston is sealed and fixed by an end cover, and the outer end of the piston is connected to the piston handle; an inner V-shaped sleeve A is installed at the lower side of the "cross"-shaped interface of the outer cylinder through a threaded connection, a ball A is arranged at the upper inner part of the inner V-shaped sleeve A, a slender liquid pipette is installed below the ball A, and a liquid storage bottle at the bottom is fixed at the lower inner part of the inner V-shaped sleeve A through a threaded connection; an inner V-shaped sleeve B is installed at the upper inner part of the inner V-shaped sleeve B, an L-shaped elbow is installed above the ball B, and a rotating nozzle is added to the end of the L-shaped elbow; The "cross"-shaped interface of the outer cylinder is connected to one end of the bolt column, the other end of the bolt column is connected to one end of the inner fastening pressing plate B, and the outer fastening pressing plate B is connected to the other end of the inner fastening pressing plate B; the inner fastening pressing plate A and the outer fastening pressing plate A are arranged between the L-shaped elbow and the rotating nozzle; One side of the inner fastening pressing piece A and the inner fastening pressing piece B is provided with an external threaded connecting shaft, which passes through the opening of the cabin isolation cover and is connected to the outer fastening pressing piece A and the outer fastening pressing piece B through threads; A pressurized rotating mechanism and a pressurized mist spraying mechanism are arranged inside the rotary nozzle; the pressurized rotating mechanism comprises a sleeve front cover, a sleeve rear cover, a blade rotating fixed shaft and a blade rotating shaft; the pressurized mist spraying mechanism comprises a V-shaped sleeve, a sleeve nozzle, a pressurized plug and a perforated inner sleeve; the sleeve front cover is connected to the L-shaped elbow through a thread, the blade rotating fixed shaft is installed inside the sleeve front cover, four U-shaped grooves are arranged on the periphery of the blade rotating fixed shaft, the circumference of the U-shaped groove surrounds the large diameter part of the blade rotating fixed shaft, the direction at the outlet is the tangent direction of the circumference, the blade rotating shaft is installed on the small diameter part of the blade rotating fixed shaft, and the blade rotating shaft is positioned by a fastening screw A; the sleeve rear cover is pressed against the sleeve front cover, a sealing ring is arranged in the middle, the V-shaped sleeve is fixed to the blade rotating shaft by a fastening screw, in two directions at an angle of 90°, a pressurized mist spraying mechanism is arranged in each direction, and a sealing ring is arranged between the inner wall of the V-shaped sleeve and the outer side of the blade rotating shaft.

2. A disinfection device for use in an isolation unit for transporting infectious patients as claimed in claim 1, characterized in that: The disinfectant in the L-shaped elbow forms a fluid through the four U-shaped grooves of the blade rotating fixed shaft, and the outlet direction is the tangential direction, impacting the blades of the blade rotating shaft, causing the blade rotating shaft to generate a rotating force, resulting in rapid rotation.

3. A disinfection device used in an isolation unit for transporting infectious patients as claimed in claim 1 or 2, characterized in that: The depth of the four U-shaped grooves arranged on the periphery of the blade rotating fixed shaft is 2 mm.

4. A disinfection device for use in an isolation unit for transporting infectious patients as claimed in claim 1, characterized in that: The pressurized mist spraying mechanism divides the disinfectant into two paths through the inner cavity. After the disinfectant flows through the perforated inner cylinder, the pressure generated by manual squeezing quickly forms an internal high pressure at the pressurized plug, and the disinfectant is sprayed out through the small hole at the top of the perforated inner cylinder, forming a high-pressure fluid in the gap between the inner side of the sleeve nozzle and the outer side of the perforated inner cylinder, and flows through the inner hole of the pressurized plug to the gap between the sleeve nozzle and the pressurized plug, further increasing the pressure, and finally sprayed out through the rectangular nozzle opening of the sleeve nozzle to form a mist-like spray disinfectant.

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