CN111608475A

CN111608475A - Door handle capable of preventing virus propagation

Info

Publication number: CN111608475A
Application number: CN202010508429.7A
Authority: CN
Inventors: 王忠清
Original assignee: Individual
Current assignee: Affiliated Hospital of University of Qingdao
Priority date: 2020-06-06
Filing date: 2020-06-06
Publication date: 2020-09-01
Anticipated expiration: 2040-06-06
Also published as: CN111608475B

Abstract

The invention provides a door handle for preventing virus propagation, which effectively solves the problems that the door handle in the prior art has larger infection risk and the cross infection is easy to occur to users when the door handle is used for preventing infection. The technical scheme for solving the problem is that the device comprises a main body, wherein the main body consists of a longitudinal shaft and a rotating rod, and rectangular boxes are arranged at the corners of the main body; a first cylinder is arranged on the longitudinal shaft, a first one-way clutch is arranged between the first cylinder and the longitudinal shaft, a first bevel gear is arranged at the front end of the longitudinal shaft, a second cylinder is arranged on the first cylinder, and a second one-way clutch is arranged between the first cylinder and the second cylinder; a third cylinder is arranged on the rotating rod, a fourth cylinder is arranged on the third cylinder, a second bevel gear is arranged on the fourth cylinder, a planetary gear mechanism is arranged on the left side of the third cylinder, the sun gear and the third cylinder are fixed together, and the gear ring and the fourth cylinder are fixed together; the right end of the fourth cylinder is provided with a large gear, the right end of the fourth cylinder is provided with a circular plate, the left end face of the circular plate is provided with a small gear, the right side of the circular plate is provided with a rotating shaft, a plastic film is arranged on the rotating shaft, and the right end of the circular plate is fixedly provided with a rotating drum.

Description

Door handle capable of preventing virus propagation

Technical Field

The invention relates to the technical field of public health, in particular to a door handle for preventing virus transmission.

Background

At present, new coronavirus is abused, so that corresponding protection should be made for the public, especially hospitals and public places with dense people streams. The door handle is an object which is contacted by people every day, so that bacteria, sweat stains, oil stains and the like can be attached to the handle, the risk of cross infection exists when people pass through the door handle, if the phenomenon occurs in a hospital, cross infection of doctors and patients can occur, and the consequences are very serious. In the prior art, the non-contact handle is roughly divided into two ways of preventing cross infection, one is to use sterilized water for sterilization, and the other is to use a plastic film for physical isolation of the contact part.

When the plastic film isolation type hand-operated; one part adopts the opening and closing extrusion of two doors to replace the plastic film, but most of the door structures do not have door locks, such as a shop door, and the door can be opened by pushing force, so that in use, a user does not need to use a handle and can push other parts to open the door, and obviously, the risk of cross infection exists; the film replacement by the sensor-controlled motor is also partially problematic in that firstly, the sensor-controlled film replacement is connected with a spring pin bolt on a door lock, if the motor fails or the film runs out, the door is normally locked, a person must screw a handle when passing through the door, the film on the handle is not replaced, cross infection occurs to the person with a high probability, and secondly, if the plastic film is damaged or rolled up during the use of the device, the cross infection also occurs to the person with a high probability.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the door handle for preventing virus propagation, which effectively solves the problems that the door handle has larger infection risk and the user is easy to have cross infection in the prior art.

The technical scheme for solving the problem is that the door handle comprises an L-shaped handle main body on a door, wherein the main body consists of a longitudinal axis vertical to the door and a rotating rod parallel to the door, the main body can rotate by taking the longitudinal axis as a center, a rectangular box is arranged at the corner of the main body, the longitudinal axis penetrates through the rear side plate of the rectangular box, and the rotating rod penetrates through the right side plate of the rectangular box; the rectangular box is sleeved with a first cylinder, a first one-way clutch is arranged between the first cylinder and the longitudinal shaft, a first bevel gear coaxial with the longitudinal shaft is fixed at the front end of the longitudinal shaft, a second cylinder is sleeved on the first cylinder and fixed to be not rotated, a second one-way clutch is arranged between the first cylinder and the second cylinder, and the rectangular box can rotate around the second cylinder and cannot be separated from the second cylinder; a third cylinder capable of rotating is sleeved on the rotating rod, a fourth cylinder capable of rotating is sleeved on the third cylinder, a second bevel gear meshed with the first bevel gear is fixed on the fourth cylinder, a planetary gear mechanism is arranged on the left side of the third cylinder, a sun gear is fixed with the third cylinder, a gear ring is fixed with the fourth cylinder, a planet carrier is sleeved on the rotating rod, and the planet carrier is fixed under normal conditions;

fourth drum right-hand member run through the rectangle box right side board and arrange the rectangle box outside in, fourth drum right-hand member is fixed with the gear wheel, third drum right-hand member stretches out the fourth drum, fourth drum right-hand member is fixed with the plectane, have the pinion with gear wheel toothing on the plectane left end face, there is the pivot parallel with the pinion one-to-one and with the bull stick on the plectane right side, the pivot can be dismantled, the winding has plastic film in the pivot, the plectane right-hand member is fixed with the rotary drum of suit on the bull stick, the pinion rotates when can driving the pivot round the revolution of gear wheel round the gear wheel, meanwhile, the rotary drum twine.

The handle has the advantages of ingenious structure, effective replacement of the contact point on the handle, effective prevention of cross infection, avoidance of contact with the residue on the previous position, thorough isolation of germs on the handle, realization of non-contact, suitability for various occasions and strong practicability.

Drawings

FIG. 1 is a front cross-sectional view of the present invention.

FIG. 2 is a top cross-sectional view of the present invention.

FIG. 3 is a schematic diagram of the transmission relationship of the present invention.

Fig. 4 is a sectional view taken along line a-a of fig. 1.

Fig. 5 is a view from direction B of fig. 1.

Fig. 6 is a cross-sectional view taken along line C-C of fig. 1.

Detailed Description

The following description will explain embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, the present invention includes an L-shaped handle body on a door, the body is composed of a longitudinal axis 1 perpendicular to the door and a rotating rod 2 parallel to the door, the body can rotate with the longitudinal axis 1 as a center, a rectangular box 3 is arranged at a corner of the body, wherein the longitudinal axis 1 penetrates through a rear side plate of the rectangular box 3, and the rotating rod 2 penetrates through a right side plate of the rectangular box 3; a first cylinder 4 is sleeved on the longitudinal shaft 1, a first one-way clutch 5 is installed between the first cylinder 4 and the longitudinal shaft 1, a first bevel gear 6 coaxial with the longitudinal shaft 1 is fixed at the front end of the longitudinal shaft 1, a second cylinder 7 is sleeved on the first cylinder 4, the second cylinder 7 is fixed and does not rotate, a second one-way clutch 8 is installed between the first cylinder 4 and the second cylinder 7, and the rectangular box 3 can rotate around the second cylinder 7 and cannot be separated; a third cylinder 9 capable of rotating is sleeved on the rotating rod 2, a fourth cylinder 10 capable of rotating is sleeved on the third cylinder 9, a second bevel gear 11 meshed with the first bevel gear 6 is fixed on the fourth cylinder 10, a planetary gear mechanism is arranged on the left side of the third cylinder 9, wherein a sun gear 12 is fixed with the third cylinder 9, a gear ring 13 is fixed with the fourth cylinder 10, a planet carrier 14 is sleeved on the rotating rod 2, and the planet carrier 14 is fixed without rotating under normal conditions;

the right end of the fourth cylinder 10 penetrates through the right side plate of the rectangular box 3 and is arranged outside the rectangular box 3, the right end of the fourth cylinder 10 is fixedly provided with a large gear 15, the right end of the third cylinder 9 extends out of the fourth cylinder 10, the right end of the fourth cylinder 10 is fixedly provided with a circular plate 16, the left end face of the circular plate 16 is provided with a small gear 18 meshed with the large gear 15, the right side of the circular plate 16 is provided with a rotating shaft 17 which is in one-to-one correspondence with the small gear 18 and is parallel to the rotating rod 2, the rotating shaft 17 is detachable, a plastic film is wound on the rotating shaft 17, the right end of the circular plate 16 is fixedly provided with a rotating drum 19 sleeved on the rotating rod 2, the small gear 18 rotates around the large gear 15 to drive the rotating.

In order to realize that the rectangular box 3 can rotate around the second cylinder 7 and can not be separated, the second cylinder 7 penetrates through the rear side plate of the rectangular box 3, and a bearing is arranged between the second cylinder 7 and the rear side plate of the rectangular box 3.

In order to install the second cylinder 7, the rear end of the second cylinder 7 extends out of the rectangular box 3 and is arranged outside the rectangular box 3, a base 20 is fixed at the rear end of the second cylinder 7, and the base 20 is fixed on the door through a plurality of screws.

In order to ensure that the next user does not touch the residual part of the previous user, the pinions 18 are uniformly distributed on the circumference, the rotating shafts 17 are also provided, and the pinions 18 correspond to the rotating shafts 17 one by one.

In order to mount the pinion 18 and the rotating shaft 17 and to enable the pinion 18 to drive the rotating shaft 17 to rotate, a plurality of spline cylinders 21 corresponding to the pinions 18 one by one penetrate through the circular plate 16, the spline cylinders 21 are coaxially fixed with the corresponding pinions 18, spline shafts 22 corresponding to the spline cylinders 21 one by one are arranged at the left end of the rotating shaft 17, and the spline shafts 22 are inserted into the spline cylinders 21.

In order to prevent the spline shafts 22 from separating from the spline cylinders 21 and prevent the rotating shaft 17 from being damaged when the rotating shaft 17 is in use, the right end of the rotating shaft 19 is also provided with a circular plate 16, the circular plate 16 is provided with the spline cylinders 21 corresponding to the rotating shaft 17 one by one, the right end of the rotating shaft 17 is provided with the spline shafts 22 corresponding to the spline cylinders 21 one by one, the spline shafts 22 are inserted into the spline cylinders 21, and a clamp spring is arranged between the circular plate 16 on the right side and the rotating shaft 19, so that the circular plate 16 is not separated from.

In order to rapidly replace the plastic films on all the rotating shafts 17, the right end of the spline shaft 22 on the right side extends out of the circular plate 16 and is arranged on the right side of the circular plate 16, the part, arranged on the right side of the circular plate 16, of the right end of the spline shaft 22 on the right side is provided with threads, nuts are screwed on the threaded parts of the spline shaft 22, the nuts enable the corresponding spline shaft 22 to be firmly fixed with the spline barrel 21, and all the rotating shafts 17 can be moved to the right by pulling the circular plate 16.

In order to ensure that the planet carrier 14 is fixed and does not rotate under normal conditions, after a plastic film is replaced, the loosened plastic film can be quickly tensioned, the use is convenient, the left end of the planet carrier 14 is fixed with a worm wheel 23 which is coaxial with the planet carrier, one side of the worm wheel 23 is meshed with a vertical worm 24, two ends of the worm 24 penetrate through the side wall of the rectangular box 3 and are arranged outside the rectangular box 3, two ends of the worm 24 are provided with annular bulges, and a bearing is arranged between the end part of the worm 24 and the side wall of the rectangular box 3.

It is worth noting that in order to reduce friction loss and prolong the service life of the parts, a bearing is installed between the third cylinder 9 and the fourth cylinder 10, a bearing is installed between the fourth bearing and the right side plate of the rectangular box 3, and a bearing is installed between the spline cylinder 21 and the circular plate 16. In order to facilitate the quick replacement of the plastic film, the plastic film is wound on the paper tube, then the paper tube with the corresponding size is sleeved on the rotating shaft 17 and the rotating cylinder 19, and the paper tube is only required to be detached from the rotating cylinder 19 and replaced by a new paper tube when being replaced; the plastic film in the invention can be replaced by other antibacterial materials, such as oily paper, non-woven fabric and the like, and has better waterproof function. Certain friction force exists between the paper tube and the rotating shaft 17 and between the paper tube and the rotating cylinder 19, the friction force is moderate, the plastic film is broken due to overlarge friction force or the handle cannot normally return to the original position, the plastic film on the rotating shaft 17 cannot be smoothly pulled by the rotating cylinder 19 due to undersize friction force, the part contacted by the previous user can be touched by the next user, and the risk of infection exists; the right end of the drum 19 is sealed, and the door handle can be completely wrapped.

Before use, a paper tube with a plastic film is sleeved on the rotating shaft 17 and the rotating drum 19 in advance, and one end of the plastic film on the rotating shaft 17 is coiled on the rotating drum 19. When the device is used, a user holds a plurality of rotary drums 19 to press downwards, so that the rotary rod 2 rotates around the longitudinal axis 1, the longitudinal axis 1 drives the first cylinder 4 to rotate together through the first one-way clutch 5, meanwhile, the second one-way clutch 8 idles, and in the process, the relative positions of the first bevel gear 6 and the second bevel gear 11 are not changed, so that the second bevel gear 11 cannot rotate; after the hand is released, the handle rebounds, at this time, the first one-way clutch 5 idles, the second cylinder 7 enables the first bevel gear 6 to be fixed and can not rotate and rotate through the second one-way clutch 8, the rotating rod 2 on the main body enables the second bevel gear 11 to roll along the first bevel gear 6 in the rotation process, the second bevel gear 11 drives the fourth cylinder 10 to rotate, the fourth cylinder 10 drives the gear ring 13 to rotate, the gear ring 13 enables the sun gear 12 to rotate reversely through the planet gear, at this time, the third cylinder 9 and the fourth cylinder 10 rotate coaxially and reversely, the fourth cylinder 10 drives the gearwheel 15 at the right end to rotate, the third cylinder 9 drives the circular plate 16 at the right end to rotate reversely, and the circular plate 16 drives the plurality of pinions 18 to roll along the outer edge of the gearwheel 15, so that all plastic films contacted by the hands of people immediately before are completely coiled on the rotating drum 19 to wait for the next working.

After multiple use, when the plastic film on the rotating shaft 17 is about to be used up, the plastic film is required to be replaced in time, the clamp spring is buckled by using a clamp, the right circular plate 16 is pulled rightwards to separate the right circular plate 16 from the rotating drum 19, at the moment, the right circular plate 16 simultaneously pulls out all the rotating shafts 17 rightwards through the spline shaft 22 and the nuts on the right circular plate 16, at the moment, paper tubes on the rotating shafts 17 and the rotating drum 19 can be replaced easily, then a new paper tube with the plastic film is sleeved on the rotating shaft 17, an empty paper tube is sleeved on the rotating drum 19, one end of the plastic film on each rotating shaft 17 is wound on the rotating drum 19, then the circular plate 16 is sleeved on the rotating drum 19 in the original position, and finally the clamp.

In the above replacement, because the plastic film and the drum 19 have a margin after replacement, the rotating shaft 17 and the circular plate 16 can be installed first, and at this time, the worm 24 is screwed, and the worm 24 rotates the planet carrier 14 to finally make the sun gear 12 drive the drum 19 to rotate, so that the extra plastic film is wound on the drum 19.

The invention has the outstanding advantages and remarkable progress that:

1. according to the invention, the previous plastic film which is contacted with the rotary drum 19 is completely coiled on the rotary drum 19 by coiling the plastic film, and due to different personal habits, the rotary shafts 17 cannot rotate by a large angle when some doors are opened, so that the rotating angle of each rotary shaft 17 is not large, and the contacted plastic film cannot be coiled in place.

2. In the invention, a plurality of rotating shafts 17 are used for surrounding the rotating drum 19, and the contact part of a user is concentrated on the outermost edge of the rotating shafts 17 when in use, so that for a single rotating shaft 17, the rotating shaft 17 only needs to rotate by a certain angle with the contact part of the human hand, and the rotating shafts 17 are more, and the rotating angle of the rotating shaft 17 required to rotate each time is smaller.

3. Based on a plurality of rotating shafts 17, because after each use, the rotating shafts 17 revolve along with the rotation of the small gear 18 around the large gear 15, the position of the rotating shaft 17 contacted by each person in use is different, in this case, even if the plastic film is rolled or damaged, only a small part of the plastic film can be contacted by the user later, and the risk of infection is greatly reduced.

4. In the invention, the plastic film is used for isolation, the rotating shafts 17 and the rotating drums 19 are kept parallel, compared with the prior art that the rotating shafts 17 release the plastic film when the plastic film is pulled hard, the rotating drums 19 collect the plastic film, the phenomenon of rolling the edges of the film is effectively avoided, the film on the outer edge part of the rotating shafts 17 contacted by a hand can be completely covered, the film can also be completely updated after each use, and the next user can not contact the residue on the previous hand.

5. When the paper tube on the rotary drum 19 and the plastic film on the rotating shaft 17 are replaced, all the rotating shafts 17 can be detached for replacing or installing new plastic films by detaching the circular plate 16 at the right end, and the circular plate 16 only needs to be clamped on the rotary drum 19 in situ during installation, so that the device is convenient and efficient.

6. For spraying the disinfection water disinfection, when the user uses, need not worry that the hand is moistened by the disinfection water, and it is unanimous with normal door handle use experience, can not influence mood.

7. The invention is especially suitable for being applied to places such as intensive care units, operating rooms, infectious departments and the like, and the hands of medical staff are kept clean when the door is opened under the condition of ensuring no infection, so that the infection between doctors and patients and the infection between doctors and patients are effectively prevented, and the spread of infectious diseases is effectively prevented.

8. Compared with the prior art, the device directly links the action of opening the door with the action of replacing the plastic film, and the handle rebounds after opening the door to directly rotate the rotary drum 19 and the rotary shaft 17, so that the response is fast and accurate; when the device is in fault, namely, a small gear 18, a large gear 15, a first bevel gear 6 and a planetary gear train are clamped at one position, the whole door handle cannot normally rotate, at the moment, if the door is in an open state, personnel do not need to touch the handle when passing, at the moment, if the door lock is in a locking state, the door is closed, and for the door closed in public places, the personnel can go around the way and can not touch the handle in general situations, so that cross infection can be effectively prevented.

Claims

1. The door handle for preventing virus from spreading is characterized by comprising an L-shaped handle body on a door, wherein the body consists of a longitudinal axis (1) perpendicular to the door and a rotating rod (2) parallel to the door, the body can rotate by taking the longitudinal axis (1) as a center, a rectangular box (3) is arranged at the corner of the body, the longitudinal axis (1) penetrates through the rear side plate of the rectangular box (3), and the rotating rod (2) penetrates through the right side plate of the rectangular box (3); the longitudinal shaft (1) is sleeved with a first cylinder (4), a first one-way clutch (5) is installed between the first cylinder (4) and the longitudinal shaft (1), a first bevel gear (6) coaxial with the longitudinal shaft (1) is fixed at the front end of the longitudinal shaft (1), a second cylinder (7) is sleeved on the first cylinder (4), the second cylinder (7) is fixed and does not rotate, a second one-way clutch (8) is installed between the first cylinder (4) and the second cylinder (7), and the rectangular box (3) can rotate around the second cylinder (7) and cannot be separated; a third cylinder (9) capable of rotating is sleeved on the rotating rod (2), a fourth cylinder (10) capable of rotating is sleeved on the third cylinder (9), a second bevel gear (11) meshed with the first bevel gear (6) is fixed on the fourth cylinder (10), a planetary gear mechanism is arranged on the left side of the third cylinder (9), a sun gear (12) and the third cylinder (9) are fixed together, a gear ring (13) and the fourth cylinder (10) are fixed together, a planet carrier (14) is sleeved on the rotating rod (2), and the planet carrier (14) is fixed and does not rotate under normal conditions;

the right end of the fourth cylinder (10) penetrates through the right side plate of the rectangular box (3) and is arranged on the outer side of the rectangular box (3), a large gear (15) is fixed at the right end of the fourth cylinder (10), the right end of the third cylinder (9) extends out of the fourth cylinder (10), a circular plate (16) is fixed at the right end of the fourth cylinder (10), a small gear (18) meshed with the large gear (15) is arranged on the left end surface of the circular plate (16), rotating shafts (17) which are in one-to-one correspondence with the small gears (18) and parallel to the rotating rod (2) are arranged on the right side of the circular plate (16), the rotating shafts (17) are detachable, a plastic film is wound on the rotating shafts (17), a rotating drum (19) sleeved on the rotating rod (2) is fixed at the right end of the circular plate (16), and the small gears (18) can rotate around, at the same time, the drum (19) winds up the plastic film on the rotating shaft (17).

2. An anti-virus spreading handle according to claim 1, characterized in that the second cylinder (1) penetrates the rear side plate of the rectangular box (3), and a bearing is arranged between the second cylinder (7) and the rear side plate of the rectangular box (3).

3. The handle for preventing the spread of viruses according to claim 1, wherein the rear end of the second cylinder (1) extends out of the rectangular box (3) and is arranged outside the rectangular box (3), the rear end of the second cylinder (7) is fixed with a base (20), and the base (20) is fixed on a door through a plurality of screws.

4. The door handle for preventing the spread of viruses according to claim 1, wherein the number of the pinions (18) is plural and is circumferentially distributed, the number of the rotating shafts (17) is plural, and the plural pinions (18) correspond to the plural rotating shafts (17) one by one.

5. The door handle for preventing the spread of viruses according to claim 1, wherein a plurality of spline cylinders (21) corresponding to the pinions (18) are penetrated through the circular plate (16), the spline cylinders (21) and the corresponding pinions (18) are coaxially fixed together, the left end of the rotating shaft (17) is provided with spline shafts (22) corresponding to the spline cylinders (21), and the spline shafts (22) are inserted into the spline cylinders (21).

6. The door handle for preventing virus propagation according to claim 1, wherein the right end of the rotating drum (19) is also provided with a circular plate (16), the circular plate (16) is provided with spline cylinders (21) corresponding to the rotating shafts (17) one by one, the right end of the rotating shaft (17) is provided with spline shafts (22) corresponding to the spline cylinders (21) one by one, the spline shafts (22) are inserted into the spline cylinders (21), and a snap spring is arranged between the circular plate (16) on the right side and the rotating drum (19), so that the circular plate (16) is not separated from the rotating drum (19).

7. The door handle for preventing virus propagation according to claim 1, wherein the right end of the spline shaft (22) on the right side extends out of the circular plate (16) and is disposed on the right side of the circular plate (16), the right end of the spline shaft (22) on the right side is threaded on the portion disposed on the right side of the circular plate (16), a nut is screwed on the threaded portion of the spline shaft (22), the nut makes the corresponding spline shaft (22) and the spline cylinder (21) firmly fixed together, and all the rotating shafts (17) can move to the right by pulling the circular plate (16) on the right side.

8. The door handle for preventing the spread of viruses according to claim 1, characterized in that a worm wheel (23) coaxial with the planet carrier (14) is fixed at the left end of the planet carrier, a vertical worm (24) is meshed at one side of the worm wheel (23), two ends of the worm (24) penetrate through the side wall of the rectangular box (3) and are arranged at the outer side of the rectangular box (3), two ends of the worm (24) are provided with annular bulges, and a bearing is arranged between the end of the worm (24) and the side wall of the rectangular box (3).