JPH04166208A - Air cleaner provided with free arm - Google Patents

Abstract

PURPOSE:To effectively clean a specified space by widely and smoothly positioning the suction port of the freely movable air cleaner provided with a free arm capable of being bent in all directions. CONSTITUTION:A filter 6 is provided at the upper part of a case 8 furnished with a caster 7, and an aspirator 1 with the blowoff port turned downward is provided at the intermediate stage. The root of the elbow of a free arm 9 with a wide mouth 20 furnished at its tip and provided with a coupling capable of being bent in all directions at its joint 23 is extended from the case 8 almost in the shape of an X by a spring, and the aspirator 1 is stopped at an optional inclined position. A pool 3 connected with the rear end of the elbow opening and provided with a supply water tank 14 is set at the lower stage of the case 8, and a sterilizing lamp 2 is furnished. A partition plate 4 is suspended in the pool 3 with a gap at its lower end, a muffling passage 5 is fixed to the rear of the partition plate 4, and an air passage running in the gap almost in the shape of a U is formed. The fine dust in the air sucked from the tip of the arm 9 is removed in the pool 3, and the air is sterilized.

Description

[Detailed description of the invention] [Industrial application field]

The present invention is applied to an air purifier equipped with a free arm that has a joint that bends in all directions, and is particularly useful for dentists to suck air in a predetermined space around a patient's mouth during treatment to prevent infection. This invention relates to a mobile air purifier suitable for prevention and purification purposes.

[Conventional technology]

Traditionally, suction devices (
Vacuum), etc. include indoor air purifiers and dust suction devices that are used by being fixed in a fixed position. There is also a suction device that removes saliva from the inside of the mouth by having a support rod (arm) extended from the suction device main body that can be bent at several points and a suction port suspended from the support rod (arm). Such an air purifying device or suction device is required from the viewpoint of sanitary environment in a medical room, and oral suction devices are also provided for cleaning the patient's mouth.

[Problems to be solved by the invention]

However, even if the above-mentioned purifier is installed. There have been cases in which dentists and nurses have contracted various diseases from patients during treatment, and it is speculated that one of the routes of infection is the contaminated atmosphere dispersed into the air during treatment. Patients who come to the dentist may be suffering from a disease that the dentist is not aware of, although it is for dental caries treatment. However, the conventional device is not designed to clean a predetermined space, so it is not possible to suction out the germs that are scattered during treatment7. In the device,
Suction port: = Only dust near the device can be sucked in, and it cannot be easily moved to get closer to the dust scattering light.・■ A suction hose with a suction pipe at the tip supported on a support rod using a hanging tool etc. has a complicated configuration and is difficult to interlock with the hose and support rod, and has different uses. It also has no purifying function. ■Also, even if the suction port is attached to the end of the suction hose and brought closer to the dust scattering light, there is no sufficient power to suction the air near the patient's mouth, and the suction port may be moved in a delicate direction or angle. It was impossible to stop it. Due to this situation, for example, there are problems in dental clinics where it is difficult to control the dissipation of tooth cutting dust and bacteria, and there is a need to improve the dust collection efficiency of dust suction devices. , studied the area around the patient's mouth where germs are most likely to be destroyed, and found that a certain area has a high concentration of germs, and that by purifying the air in this area, it is possible to significantly reduce 11i infections. The idea was to stop in a space and use strong suction to purify fa.The purifier for air suction near the patient's mouth according to the present invention removes breath, saliva, cuttings, etc. from the patient. This was achieved based on numerical research that tested the range of dust, bacteria, and other airborne particles. The first object of the present invention is to develop a purifier equipped with a free arm (suction hose) that is installed inside the intake pipe without impeding air permeability and has an indirect joint that can be bent in all directions. The suction port at the end of the free arm can be stopped at a desired position. Second, it is a mobile air purifier that is easy to use during treatment, can be moved around the clinic, has a large suction power, is quiet, and can completely purify and immediately return suction air. It is intended for the purpose of providing.

[Means for solving interacoustic points]

The present invention is a purifier that is installed in a dental clinic or the like, has a suction port stopped in a desired space near a patient's mouth, sucks out the flying debris, and releases clean air. Here, the present invention provides a filter on the upper part of a case with casters, and a suction machine with an outlet facing downward in the middle stage, and the suction machine has a wide mouth part attached to its tip and can be bent and locked in all directions. The base of the elbow of a free arm (suction hose) equipped with a joint at the joint is stretched around the case with a spring in an approximately X shape so that it can stop at any inclined position, and the rear end of the elbow opening is connected to the case. A pool with a water replenishment tank is provided below the suction outlet and a #j fungal lamp is installed on the lower level, and a partition board with a gap at the lower end is installed vertically into the pool, and on the back side of this partition board. A noise reduction path is attached to form an air passage that goes around the gap at the bottom of this partition plate in a roughly I-shape, and the air sucked in from the tip of the free arm that is stopped at an arbitrary spatial position is used to remove fine particles within the pool. This is an air purifier with a free arm that sterilizes the air, sends it while silencing it, cleans it through an upper filter, and then discharges it. In addition, the free arm joint has conical locking holes arranged in series over approximately half of the entire circumferential surface of each of the two discs so that the edges thereof are in contact with each other. are joined at the apex of the half circumferential surface where the locking holes are not consecutively provided so that their circumferential surfaces intersect at right angles, and the said A rotary rod with a two-pronged disc sandwiching the disc, which has a screw hole in its base and two arms on the side of the base end, is pivoted at the center of the disc so that it can freely rotate, and is screwed into the screw hole. A cylindrical hole is formed in the center of the entire surface of the bolt, and a fill spring is interposed in this cylindrical hole to bias the pole so that it slightly protrudes in the axial direction, and the pole is pressed against the circumferential surface of the disk. This bolt is screwed into the screw hole so as to make contact with it. One rotating rod of the joint rotates in the vertical direction (latitude), the other rotating rod rotates in the horizontal direction (longitude), and the overall combination of vertical and horizontal directions allows for bending and locking in all directions. It is a fitting,
It can be stopped at delicate positions around the patient's mouth, such as when treating cavities.

【Example】

Next, an embodiment of an air cleaner equipped with a free arm according to the present invention will be described in detail based on the drawings. FIG. 1 is an exploded perspective view, and FIG. 2 is a side sectional view. The air purifier consists of a case 8 with casters 7, which has a built-in purification mechanism consisting of a suction device 1, a sterilizing lamp 2, a boule 3, a partition plate 4, a sound deadening path 5, and a filter 6, and a case 8 with casters 7, and a case 8 with casters 7 installed on the suction device 1 to adjust the suction device 1 to any desired inclination. A free arm (suction hose) 9 is attached which can be set and whose wide end can be bent in all directions. In the embodiment, the case 8 with casters γ is a vertically elongated metal box, with a lid 10 with many window holes in the upper part, and a box 11 containing switches, electric circuits, etc. in the lower part, and a box 11 for this inspection. A back cover 12 such as the above is provided, and a foot switch 13 is attached. A filter 6 is provided at the top of the case 8. The filter 6 is replaceable and has a structure in which a paper filter is filled in a wooden frame for incineration. Air filtration achieves nearly 100% sterilization and purification. In the middle of the case 8, there is a suction machine 1 with the outlet facing downward.
and the water replenishment tank 14 is fixed. In the lower part of the case 8, a boule 3 connected to the water replenishment tank 14 and supplied with water through a pipe 15 is provided below the outlet of the suction mi, and a germicidal lamp 2 is attached.
A partition plate 4 with a gap at the lower end is installed vertically inward, and this partition plate 4
A sound deadening passage 5 is attached to the back side of the partition plate 4 to form an air passage that goes around the lower end gap of the partition plate 4 in a substantially U-shape, and the sucked air is sterilized by removing fine particles in the boule 3, and then is silenced. The water is then sent upward, cleaned by an upper filter 6, and discharged to the outside. Dust and the like are attached to the water surface of the boule 3, sterilized at the same time, and the water is passed through the lower end of the partition plate 4 through a noise-reducing path at a gentle passage speed and muffled, and then sent to a filter for purification. The germicidal lamp 2 is not limited to a known ultraviolet germicidal lamp, but may also include an ozone generating tube or the like. The suction device 1 installed in the middle has a free arm (suction hose) 9 with a wide-mouth portion 20 attached to the tip and a joint 23 that is bendable in all directions, with an axis 91 at the base of the elbow. The rear end of the elbow opening of the free arm 9 is connected to the case 8 by a spring 22 in an X shape, and the vertical arm 92 is moved in the direction of arrow S and stopped at an arbitrary inclined position. A joint 21 is provided at the joint 23 between the vertical arm 92 and the lateral arm 93 of the free arm 9, and at the joint 23 between the lateral arm 93 and the wide mouth part 20. 9The vertical arm 9 of the free arm 9
2 swings as shown by arrow S, and the horizontal arm 93 and the wide mouth part 20 are bendable in all directions at the joint 21 and stop at a desired position.8 Next, it is applied to the joint part 23 of the free arm 9. The joint 21 will now be described. FIG. 3 is a front partial sectional view of the joint 21, and FIG. 4 is a rear view of the joint showing a state in which one of the rotating rods is rotated.
FIG. 5 is a cutaway view of the state in which it is attached to the joint portion 23. The joint 21 has conical locking holes 26 connected to each other over almost the entire circumference of the disk 24.25 so that their edges are in contact with each other. The disks 24 and 25 are joined with solder or the like at the apex of the circumferential surface where the locking hole 26 is not provided so that the surfaces intersect at right angles i1, and the disks 24 and 25 are connected at right angles at this joining point to form a pair. .25, screw hole 27 at the base with two forks
A rotating rod 29.30, which penetrates through and has two arms 28 on the side surface of the proximal end, is rotatably supported by a shaft 31 at the center of the disc 24.25. A bolt 33 is screwed into the screw hole 27 of 30. A cylindrical hole 34 is formed in the center of the entire surface of the pole 33, and a coil spring 35 is interposed in the cylindrical hole 34 to bias the ball 36 so as to slightly protrude in the direction of the shaft 31. The bolt 33 is screwed into the screw hole 27 so that the ball 36 comes into contact with the circumferential surface of the disk 24, 25. The rotation of the rotation rods 29 and 30 is caused by the repulsive force of the coil spring 35 when the ball 36 sinks into the cylindrical hole 34 while being pushed by the inclined surface of the conical locking hole 26 and moves to the next locking hole 26. It rotates while repeating the action of locking in the locking hole 26 with the locking hole 26. By making the locking hole 26 into a conical shape and connecting the holes with their edges in contact with each other, the sliding of the ball 3G is made smooth and the number of locking points is increased, so that the rotation rod 29.3
Since the range of selection of the stop position of 0 can be widened, it is possible to stop the rotary rods 29 and 30 in delicate directions and angles. In addition, both shafts 31 are arranged at right angles with an interval, and the rotating rod 2
9.30 are made perpendicular to the junction point of the discs 24 and 25, and are paired with each other. In the example shown in FIG. The ball 36 that was locked in the locking hole 2G is now locked in the locking hole 2G.
When the ball 36 is pressed by the inclined surface of the coil spring 35 and sinks while compressing the coil spring 35, and moves over the edge to the next locking hole 26, the ball 36 is locked in the locking hole 26 by the repulsive force of the coil spring 35. t: The rotating rod 29 will stop. Similarly, if the rotating rod 30 is rotated in the vertical direction (arrow F), the rotating rod 30 will follow the circumferential surface of the disk 25 and cover almost the entire circumference except for the joint point due to the same action as described above. Rotation (reciprocating)
6 The actual size of the joint 21 in the example is 19.4 cm in total length.
The total width is 6C■, and the actual dimensions of each part are as follows: Discs 24 and 25 have a diameter of 3.6cm and a thickness of 1cm, the diameter of the conical locking hole 26 is 0.3cm and a depth of O, and the angle of inclination of the conical surface is 1cm. is 25°, and the diameter of the ball 36 is 0.4c.
m, the total length of the rotating rods 29 and 30 is 5.20 cm, the length of the bifurcated part is 3.2 cm, the expansion width is 20 cm, and the thickness is 0.5 cm, the diameter of the base end is 1.8 CI++, and the diameter of the screw hole 27 is The number of locking holes 26, each having a diameter of 1 cm, is 21 in the embodiment. Naturally, the angle between the locking hole 26 and the adjacent locking hole 26 determines the rotation angle of each piece.As shown in FIG. If the arm 28 of the rotating rod 30 is connected and fixed to the cylindrical free arm 9 body, and the wide mouth part 20 is connected to the suction port mounting plate 37 attached to the arm 28 of the rotating rod 29, one wide mouth can be obtained. Hold the part 20 or the handle 38 and move it upwards or downwards. Since the disk 24 is connected to the disk 25 at right angles, the rotating rod 29, the disk 24, and the disk 25 are fixed and the axis of the disk 25 is fixed. Tanu rotates around 6,
The wide mouth part 20 moves vertically (arrow F), and if you hold the wide mouth part 20 and move it to the left or right, the rotating rod 3 to 25 and the rotating rod 29 will remain stationary and the disk will move. 24 rotates, and the wide mouth portion 20 moves in the left-right direction. By combining this vertical movement and horizontal movement, the wide mouth part 20 is bent in all directions with each axis 6 of the rotating rod 29 or 30 as a base point, and is clicked by the pole 36. This means that it can be stopped. A bellows-shaped cover 39 is attached to the joint 23 of the free arm 9 of the suction machine 1, etc., and the free arm 9 as a whole becomes a suction hose, and the main body of the joint 21 is positioned within the suction passage. . The cover 39 of the joint 23 of the free arm 9 has an elastic ring inserted therein so that it will not block the passage even if bent, but since the disks 24 and 25 of the joint 21 protrude in four directions, Even if the cover 39 of the joint part 23 is made of a somewhat soft material, it will not be blocked. Further, since the disks 24 and 25 intersect at right angles, a gap is created between them, and a passage is always maintained. It is extremely useful as a fitting 21 in a passageway. In addition, from the viewpoint of fluid dynamics, it is possible to propose a configuration in which the rotating rods 29 and 30 are shaped into a streamlined shape with as little resistance as possible, and a configuration in which the thickness of the discs 24 and 25 is made thin. Note that this embodiment is just an example. For example, the design of the case 8 can be easily changed, and the present invention is not limited to this. Finally, the design of this embodiment can be changed based on known technical standards and the materials of parts can be changed, and the present invention also includes applications in other fields and addition of other technologies.

【Effect of the invention】

The air purifier equipped with a free arm according to the present invention has the configuration and operation as shown in the above embodiment, and has the following unique technical effects7. (approx. 20~30C■)
By stopping the wide mouth part of the free arm (suction hose) in front of the machine, cutting debris and scattered bacteria generated during treatment are strongly sucked together with the surrounding air, preventing infection of the dentist and contamination of the clinic room. I can do it. Effective for cleaning a given space. ■The free arm swings and can be bent and locked in all directions, so it can be easily and smoothly moved to a desired spatial position and stopped. ■It is an all-in-one mobile purifier, and it can be operated by stepping on the foot switch, so it does not interfere with treatment work. ■Cleaning functions include caries cutting fine powder f, + saliva, straw water; Powder and other dust particles can be extracted efficiently.The suction air is once applied to the water surface of the pool, treated with a germicidal lamp there, and then repurified using a filter, so it has a purifying function. As described above, the present invention is an air purifier equipped with a free arm that bends in all directions, and is movable, allowing delicate positioning of the suction port to be performed over a wide range and smoothly. It can be said that it is a valuable and excellent invention that is extremely useful in the hygiene aspect of dental treatment.

[Brief explanation of drawings]

The drawings show an embodiment of an air cleaner equipped with a free arm according to the present invention, and FIG. 1 is an exploded perspective view, and FIG. 2 is a side sectional view. No. 37 + Knee FIG. Explanation of symbols 1 ・・・Suction device 2 ・・・Bactericidal lamp 3・・・・・・Pool 4 −・・・Diaphragm 5・・・Noise reduction path 6・・・・・・・Filter 7− Caster 8 ... Case 9 ... - Free arm lO - Lid 13 - Foot switch 14 - Water tank 22 - Spring 21 Joint 23 - Joint 24.25 Disc 29.30 - Rotating rod 26- Hooking hole 27- Screw hole 33・Bolt 31・-Shaft 34-・−・・Cylindrical hole 36・・・・Pole 35・−・・Coil spring 28・・・・・・・Arm 37・・Suction port mounting root 20- Wide mouth part S, E, F Arrow mark

Claims (2)

[Claims] (1) A filter is installed on the top of the case with casters, and a suction machine with the outlet facing downward is installed in the middle, and the suction machine has a wide-mouthed part at the tip and a joint that can be bent in all directions at the joint. The base of the elbow of the free arm (suction hose) equipped on the case is stretched in an approximately X shape with a spring so that it can stop at any tilted position, and the rear end of the elbow opening is connected, and the suction hose is attached to the lower part of the case. A pool equipped with a water replenishment tank is provided below the machine outlet, a germicidal lamp is installed, a partition board with a gap at the lower end is installed vertically into the pool, and a sound deadening path is attached to the back side of the partition board, An air passage is formed around the gap at the lower end of this partition plate in a roughly U-shape, and air is sucked in from the tip of the free arm that is stopped at an arbitrary spatial position, and after removing fine particles and sterilizing it inside the pool, it is sent while being muted. , an air purifier with a free arm, characterized by an upper filter that cleans and discharges. (2) The free arm joint has two discs each having locking holes arranged over approximately half the circumference of the entire circumferential surface so that their edges touch each other, the circumferential surfaces of which intersect at right angles. Join at the apex of the circumferential surface where the locking holes are not consecutively provided, as shown in FIG.
At this joining point, a rotating rod is attached to each disk so as to intersect at right angles to form a pair, sandwiching the disk, having a bifurcated rotating rod with a screw hole in the base and two arms on the side surface of the base end. The ball is pivotally supported at the center of the disc so that it can rotate freely, and a cylindrical hole is formed in the center of the entire surface of the bolt that is screwed into the screw hole, and a spring is interposed in this cylindrical hole so that the ball protrudes in the axial direction. The air conditioner according to claim 1, which is a joint in which the bolt is screwed into the screw hole so that the ball comes into contact with the circumferential surface of the disk. Cleaner.