CN216294313U

CN216294313U - Suck-back prevention device for oral dentistry

Info

Publication number: CN216294313U
Application number: CN202122618272.6U
Authority: CN
Inventors: 何超; 王佳伟; 孙梦媛
Original assignee: Jiamusi University
Current assignee: Jiamusi University
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-15
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses an anti-suck-back device for oral dentistry, which comprises a collecting tank, wherein a negative pressure adsorption and anti-suck-back mechanism is arranged outside the collecting tank, the negative pressure adsorption and anti-suck-back mechanism comprises a rotary drum, a movable rod, a movable plate, an adsorption pipe, a discharge pipe, a baffle ring, a transverse plate, a slide rod, a sealing plate, a tensioning spring and a hose, the top end of the collecting tank is rotatably connected with the rotary drum, the interior of the rotary drum is connected with the movable rod through threads, and the bottom end of the movable rod is rotatably connected with the movable plate corresponding to the position inside the collecting tank. The secretion is discharged from the discharge pipe, and the convenience of the device is improved.

Description

Suck-back prevention device for oral dentistry

Technical Field

The utility model relates to the technical field of oral dentistry, in particular to an anti-suck-back device of the oral dentistry.

Background

The oral cavity of a common infant patient is easy to generate more secretions, the secretions can not only cause the breeding of bacteria and increase the risk of infection, but also cause the secretions to be sucked into the airway by mistake and cause asphyxiation, and the secretions need to be collected by a negative pressure adsorption tube in time;

however, in the process of adsorption and discharge, the phenomenon of suck-back easily occurs in the existing negative pressure adsorption tube, so that the secretion flows back into the oral cavity of the child patient, causing secondary infection and endangering the health of the child.

SUMMERY OF THE UTILITY MODEL

The utility model provides an anti-suck-back device for oral dentistry, which can effectively solve the problems that the suck-back phenomenon is easy to occur in the adsorption and discharge processes in the background technology, and secretion flows back to the inside of the oral cavity of a child patient, so that secondary infection is caused and the health of the child is harmed.

In order to achieve the purpose, the utility model provides the following technical scheme: a back suction prevention device for oral dentistry comprises a collection tank, wherein a negative pressure adsorption and back suction prevention mechanism is arranged on the outer side of the collection tank and comprises a rotary drum, a movable rod, a movable plate, an adsorption pipe, a discharge pipe, a baffle ring, a transverse plate, a slide rod, a sealing plate, a tension spring and a hose;

the collecting tank top is rotated and is connected with the rotary drum, there is the movable rod inside the rotary drum through threaded connection, the movable rod bottom corresponds the inside position department of collecting tank and rotates and is connected with the fly leaf, the welding of collecting tank outside bottom position department has the adsorption tube, and the welding of collecting tank outside other end bottom position department has the discharge pipe, the equal joint of adsorption tube inner wall and discharge pipe inner wall has the fender ring, the equal joint of adsorption tube inner wall and discharge pipe inner wall correspondence fender ring one side position department has the diaphragm, diaphragm inner wall swing joint has the slide bar, slide bar one end butt fusion has the closing plate, the slide bar outside corresponds the tensioning spring that has cup jointed between closing plate and the diaphragm, there is the hose in the adsorption tube outside through threaded connection.

Preferably, the top end of the collecting tank is provided with a rotating and stalling mechanism, and the rotating and stalling mechanism comprises a support, a rotating motor, a driving gear, a driven gear, a vertical cylinder, a mandril, a cushion block, a supporting spring, a convex block, an emergency stop switch and a jacking block;

the collecting tank top corresponds rotary drum one side position department and passes through bolt fixedly connected with support, and the collecting tank top passes through support fixedly connected with rotating electrical machines, rotating electrical machines output shaft fixedly connected with driving gear, the rotary drum outside corresponds the fixed driven gear that has cup jointed of driving gear one side position department, the inside top joint of collecting tank has a vertical cylinder, the inside swing joint of vertical cylinder has the ejector pin, the ejector pin bottom founds the cushion, and the ejector pin outside corresponds the cushion and has cup jointed supporting spring between the vertical cylinder, the support one end corresponds vertical cylinder top position department butt fusion and has the lug, the lug bottom passes through bolt fixedly connected with emergency stop switch, the ejector pin top corresponds emergency stop switch bottom position department butt fusion and has the kicking block.

Preferably, the outer side of the movable plate is attached to the inner wall of the collecting tank, and the sealing plate inside the adsorption pipe and the sealing plate inside the discharge pipe are both located on the same side of the retaining ring.

Preferably, the driving gear and the driven gear are meshed and connected with each other, the emergency stop switch supplies power through an external power supply, and a signal output end of the emergency stop switch is connected with an output end of the rotating motor.

Preferably, the fixed solid fixed ring that has cup jointed in the rotary drum outside corresponds the fixed ring of collection tank inside position department, the inside solid fixed ring top position department that corresponds of collection tank is through bolt fixedly connected with backing ring, and all through bolt fixedly connected with magnetic ring between solid fixed ring and the backing ring, the butt fusion of collection tank inner wall equidistance has the spacing piece, and the fly leaf outside corresponds the spacing piece one side position department and has seted up the spacing groove.

Preferably, the two magnetic rings are mutually exclusive, and one end of the movable plate is attached to the inner wall of the limit groove.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has scientific and reasonable structure and safe and convenient use:

1. be provided with negative pressure and adsorb and prevent suck-back mechanism, it removes to drive movable rod and fly leaf through the rotary drum rotation, bleed to the holding vessel, it is the inside negative pressure that forms of holding vessel, the cooperation of rethread adsorption tube and hose, it is inside with secretion suction holding vessel, then descend through the fly leaf, discharge secretion from the discharge pipe, the convenience of device has been improved, in addition, through the flexible characteristic of supporting spring, drive slide bar and closing plate and remove, simultaneously through the cooperation that keeps off the ring, when adsorbing, make the adsorption tube open, the discharge pipe is closed, and when discharging, make the adsorption tube closed, the discharge pipe opens, and then when adsorbing and discharging, avoid appearing suck-back's phenomenon, guarantee the collection effect to the secretion.

2. Be provided with rotatory and stall mechanism, it is rotatory to drive the driving gear through rotating electrical machines, and the cooperation through driven gear, transmit power, it is rotatory to conveniently drive the rotary drum, when the fly leaf rises to the top, promote the ejector pin through the cushion and remove, make the ejector pin rise with the laminating of scram switch, thereby even stop the power supply to rotating electrical machines, avoid rotating electrical machines to last rotatory, the effect of the energy has been reduced, and prevent device damage, in addition through the flexible characteristic of supporting spring, be convenient for promote the ejector pin and reset, the effect of follow-up scram is kept.

3. Be provided with solid fixed ring, backing ring, magnetic ring, stopper and spacing groove, through solid fixed ring and the magnetic ring between the backing ring, reduce the friction between rotary drum and the holding vessel to improved the rotation efficiency of rotary drum, reduced the consumption of rotating electrical machines to the energy, at the in-process that the fly leaf removed, through stopper and spacing groove cooperation, spacing to the fly leaf in addition, avoid the fly leaf skew to appear, guarantee the effect of bleeding.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the negative pressure adsorption and suck-back prevention mechanism of the present invention;

FIG. 3 is a schematic structural view of the rotation and deactivation mechanism of the present invention;

reference numbers in the figures: 1. a collection tank;

2. a negative pressure adsorption and suck-back prevention mechanism; 201. a rotating drum; 202. a movable rod; 203. a movable plate; 204. an adsorption tube; 205. a discharge pipe; 206. a baffle ring; 207. a transverse plate; 208. a slide bar; 209. a sealing plate; 210. tensioning the spring; 211. a hose;

3. a rotation and stall mechanism; 301. a support; 302. a rotating electric machine; 303. a driving gear; 304. a driven gear; 305. a vertical cylinder; 306. a top rod; 307. cushion blocks; 308. a support spring; 309. a bump; 310. a scram switch; 311. a top block;

4. a fixing ring; 5. a backing ring; 6. a magnetic ring; 7. a limiting block; 8. a limiting groove.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-3, the utility model provides a technical solution, a back suction prevention device for oral dentistry, comprising a collection tank 1, a negative pressure adsorption and back suction prevention mechanism 2 is arranged outside the collection tank 1, the negative pressure adsorption and back suction prevention mechanism 2 comprises a rotary drum 201, a movable rod 202, a movable plate 203, an adsorption pipe 204, a discharge pipe 205, a baffle ring 206, a transverse plate 207, a slide rod 208, a sealing plate 209, a tension spring 210 and a hose 211;

the top end of the collecting tank 1 is rotatably connected with a rotating drum 201, the interior of the rotating drum 201 is connected with a movable rod 202 through threads, the bottom end of the movable rod 202 is rotatably connected with a movable plate 203 corresponding to the interior of the collecting tank 1, the bottom position outside the collecting tank 1 is welded with an adsorption pipe 204, and the bottom of the other end of the collecting tank 1 is welded with a discharge pipe 205, the inner walls of the adsorption pipe 204 and the discharge pipe 205 are respectively clamped with a baffle ring 206, the inner walls of the adsorption pipe 204 and the discharge pipe 205 are respectively clamped with a transverse plate 207 at the position corresponding to one side of the baffle ring 206, the inner wall of the transverse plate 207 is movably connected with a slide bar 208, one end of the slide bar 208 is welded with a sealing plate 209, the outer side of the slide bar 208 is sleeved with a tension spring 210 corresponding to the space between the sealing plate 209 and the transverse plate 207, the outer side of the adsorption pipe 204 is connected with a hose 211 through screw threads, for convenience of air extraction, the outer side of the movable plate 203 is attached to the inner wall of the collection tank 1, and the sealing plate 209 in the adsorption pipe 204 and the sealing plate 209 in the discharge pipe 205 are both positioned on the same side of the baffle ring 206;

the top end of the collecting tank 1 is provided with a rotation and stalling mechanism 3, and the rotation and stalling mechanism 3 comprises a bracket 301, a rotating motor 302, a driving gear 303, a driven gear 304, a vertical tube 305, a top rod 306, a cushion block 307, a supporting spring 308, a convex block 309, an emergency stop switch 310 and a top block 311;

the top end of the collecting tank 1 is fixedly connected with a bracket 301 through a bolt at a position corresponding to one side of the rotary drum 201, the top end of the collecting tank 1 is fixedly connected with a rotary motor 302 through the bracket 301, an output shaft of the rotary motor 302 is fixedly connected with a driving gear 303, a driven gear 304 is fixedly sleeved at a position corresponding to one side of the driving gear 303 at the outer side of the rotary drum 201, a vertical cylinder 305 is clamped at the top end of the inner part of the collecting tank 1, a top rod 306 is movably connected with the inner part of the vertical cylinder 305, a cushion block 307 is cast at the bottom end of the top rod 306, a supporting spring 308 is sleeved between the cushion block 307 and the vertical cylinder 305 at the outer side of the top rod 306, a lug 309 is welded at a position corresponding to the top of the vertical cylinder 305 at one end of the bracket 301, an emergency stop switch 310 is fixedly connected with the bottom end of the lug 309 through a bolt, a top block 311 is welded at a position corresponding to the bottom of the emergency stop switch 310 at the top end of the top rod 306, in order to transmit power, the driving gear 303 and the driven gear 304 are meshed with each other, the emergency stop switch 310 is powered by an external power supply, and a signal output end of the emergency stop switch 310 is connected with an output end of the rotating motor 302;

fixed solid fixed ring 4 has been cup jointed to the fixed ring 4 that corresponds 1 inside position department of collection tank in the rotary drum 201 outside, 1 inside solid fixed ring 4 top position department of corresponding of collection tank passes through bolt fixedly connected with backing ring 5, and all through bolt fixedly connected with magnetic ring 6 between solid fixed ring 4 and the backing ring 5, 1 inner wall equidistance butt fusion of collection tank has spacing block 7, and the fly leaf 203 outside corresponds 7 one side position departments of spacing block and has seted up spacing groove 8, in order to improve rotatory efficiency, two magnetic ring 6 repel each other, fly leaf 203 one end is laminated with 8 inner walls of spacing groove mutually.

The working principle and the using process of the utility model are as follows: first, the driving gear 303 is rotated by the rotating motor 302, and by the cooperation of the driven gear 304, the power is transmitted to drive the rotating drum 201 to rotate, thereby driving the movable rod 202 and the movable plate 203 to move, the collection tank 1 is pumped to form negative pressure inside the collection tank 1, then the secretion is sucked into the collection tank 1 through the matching of the adsorption tube 204 and the hose 211, then the secretion is discharged from the discharge pipe 205 by descending the movable plate 203, the convenience of the device is improved, in addition, the sliding rod 208 and the sealing plate 209 are driven to move by the telescopic characteristic of the supporting spring 308, and simultaneously, through the cooperation of the baffle ring 206, at the time of adsorption, the adsorption tube 204 is opened and the discharge tube 205 is closed, and at the time of discharge, the adsorption tube 204 is closed and the discharge tube 205 is opened, further, during the adsorption and the discharge, the phenomenon of suck-back is avoided, and the collection effect of the secretion is ensured;

next, the friction between the rotating drum 201 and the collecting tank 1 is reduced through the magnetic ring 6 between the fixed ring 4 and the backing ring 5, so that the rotating efficiency of the rotating drum 201 is improved, the consumption of the rotating motor 302 on energy is reduced, in addition, in the moving process of the movable plate 203, the movable plate 203 is limited through the matching of the limiting block 7 and the limiting groove 8, the movable plate 203 is prevented from deviating, and the air extraction effect is ensured;

finally, when the movable plate 203 rises to the top end, the top rod 306 is pushed to move through the cushion block 307, so that the top block 311 rises to be attached to the emergency stop switch 310, and even if the power supply to the rotating motor 302 is stopped, the rotating motor 302 is prevented from continuously rotating, the energy source effect is reduced, the device is prevented from being damaged, and in addition, the top rod 306 is conveniently pushed to reset through the telescopic characteristic of the supporting spring 308, and the subsequent emergency stop effect is kept.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an oral cavity dentistry prevents suck-back device, includes holding vessel (1), its characterized in that: a negative pressure adsorption and anti-suck-back mechanism (2) is arranged on the outer side of the collecting tank (1), and the negative pressure adsorption and anti-suck-back mechanism (2) comprises a rotary drum (201), a movable rod (202), a movable plate (203), an adsorption pipe (204), a discharge pipe (205), a baffle ring (206), a transverse plate (207), a sliding rod (208), a sealing plate (209), a tension spring (210) and a hose (211);

the collecting tank is characterized in that the top end of the collecting tank (1) is rotatably connected with a rotary drum (201), a movable rod (202) is connected to the interior of the rotary drum (201) through threads, the bottom end of the movable rod (202) is rotatably connected with a movable plate (203) corresponding to the interior of the collecting tank (1), an adsorption pipe (204) is welded to the bottom position of the outer side of the collecting tank (1), a discharge pipe (205) is welded to the bottom position of the outer side of the collecting tank (1), baffle rings (206) are respectively clamped to the inner wall of the adsorption pipe (204) and the inner wall of the discharge pipe (205), transverse plates (207) are respectively clamped to the positions of one sides of the baffle rings (206), sliding rods (208) are movably connected to the inner wall of the transverse plates (207), a sealing plate (209) is welded to one end of the sliding rods (208), and tensioning springs (210) are sleeved between the corresponding sealing plate (209) and the transverse plates (207) on the outer side of the sliding rods (208), the outer side of the adsorption pipe (204) is connected with a hose (211) through threads.

2. The anti-suck-back device for oral dentistry as claimed in claim 1, wherein: the top end of the collecting tank (1) is provided with a rotating and stalling mechanism (3), and the rotating and stalling mechanism (3) comprises a support (301), a rotating motor (302), a driving gear (303), a driven gear (304), a vertical cylinder (305), a top rod (306), a cushion block (307), a supporting spring (308), a convex block (309), an emergency stop switch (310) and a top block (311);

the collecting tank is characterized in that a support (301) is fixedly connected to one side position of the top end of the collecting tank (1) corresponding to the rotary drum (201) through a bolt, a rotary motor (302) is fixedly connected to the top end of the collecting tank (1) through the support (301), an output shaft of the rotary motor (302) is fixedly connected with a driving gear (303), a driven gear (304) is fixedly sleeved on one side position of the outer side of the rotary drum (201) corresponding to the driving gear (303), a vertical cylinder (305) is clamped on the top end of the inner portion of the collecting tank (1), a push rod (306) is movably connected to the inner portion of the vertical cylinder (305), a cushion block (307) is fused and cast at the bottom end of the push rod (306), a supporting spring (308) is sleeved between the cushion block (307) and the vertical cylinder (305) corresponding to the outer side of the push rod (306), a convex block (309) is fused and welded to the top position of the support (301) corresponding to the top portion of the vertical cylinder (305), and an emergency stop switch (310) is fixedly connected with a bolt, the top end of the ejector rod (306) is welded with an ejector block (311) corresponding to the bottom of the emergency stop switch (310).

3. The anti-suck-back device for oral dentistry as claimed in claim 1, wherein: the outer side of the movable plate (203) is attached to the inner wall of the collecting tank (1), and the sealing plate (209) inside the adsorption pipe (204) and the sealing plate (209) inside the discharge pipe (205) are both positioned on the same side of the baffle ring (206).

4. The anti-suck-back device for oral dentistry as claimed in claim 2, wherein: the driving gear (303) and the driven gear (304) are meshed and connected with each other, the emergency stop switch (310) supplies power through an external power supply, and the signal output end of the emergency stop switch (310) is connected with the output end of the rotating motor (302).

5. The anti-suck-back device for oral dentistry as claimed in claim 1, wherein: the fixed solid fixed ring (4) that has cup jointed of collection tank (1) inside position department is corresponded in rotary drum (201) outside, collection tank (1) inside corresponds solid fixed ring (4) top position department through bolt fixedly connected with backing ring (5), and all through bolt fixedly connected with magnetic ring (6) between solid fixed ring (4) and backing ring (5), collection tank (1) inner wall equidistance butt fusion has spacing piece (7), and corresponds spacing piece (7) one side position department in fly leaf (203) outside and has seted up spacing groove (8).

6. The anti-suck-back device for oral dentistry as claimed in claim 5, wherein: the two magnetic rings (6) are mutually exclusive, and one end of the movable plate (203) is attached to the inner wall of the limiting groove (8).