CN213883612U - Triple-purpose spray gun head for blocking water vapor and preventing suck-back - Google Patents
Triple-purpose spray gun head for blocking water vapor and preventing suck-back Download PDFInfo
- Publication number
- CN213883612U CN213883612U CN202022952349.9U CN202022952349U CN213883612U CN 213883612 U CN213883612 U CN 213883612U CN 202022952349 U CN202022952349 U CN 202022952349U CN 213883612 U CN213883612 U CN 213883612U
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- CN
- China
- Prior art keywords
- water
- spray gun
- air
- check valve
- blocker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 123
- 239000007921 spray Substances 0.000 title claims abstract description 72
- 230000000903 blocking effect Effects 0.000 title claims description 47
- 238000005507 spraying Methods 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 241000894006 Bacteria Species 0.000 abstract description 12
- 208000015181 infectious disease Diseases 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 5
- 210000003128 head Anatomy 0.000 description 22
- 210000000214 mouth Anatomy 0.000 description 15
- 238000009434 installation Methods 0.000 description 7
- 206010011409 Cross infection Diseases 0.000 description 6
- 206010029803 Nosocomial infection Diseases 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 241001088417 Ammodytes americanus Species 0.000 description 3
- 206010052428 Wound Diseases 0.000 description 3
- 241000700605 Viruses Species 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 244000000010 microbial pathogen Species 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 206010018276 Gingival bleeding Diseases 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 206010064091 Iatrogenic infection Diseases 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 210000004262 dental pulp cavity Anatomy 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Images
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model relates to a three way spray gun rifle head of resorption is prevented to aqueous vapor block belongs to dental appliance technical field, has solved among the prior art problem that the spray gun has the bacterium resorption to lead to spray gun rifle body to pollute even pollutes dental chair's dental treatment platform water supply system or compressed air system. The utility model discloses a three way spray gun rifle head is used to dentistry with blocker function, include the nozzle pole, the resorption blocker and the spray gun pole of constituteing by inner tube and outer tube, be equipped with the resorption blocker between nozzle pole and the spray gun pole, the inner tube of nozzle pole and the water outlet sealing connection of blocker, the outer tube of nozzle pole and the gas outlet sealing connection of blocker. The suck-back blocker is provided with a water one-way valve and a gas one-way valve, realizes the normal ejection of water and gas, and can prevent water or gas from being sucked back to the internal water tank of the treatment chair, thereby avoiding polluting the inside infection of the treatment instrument.
Description
Technical Field
The utility model relates to a belong to dental instrument technical field, especially relate to a three way spray gun rifle head of resorption is prevented to aqueous vapor block.
Background
The three-purpose spray gun head is a cleaning tool for dental oral treatment, and is used for spraying water and/or air into oral cavity of patient. Typically, the mouth is cleaned thoroughly each time a treatment step is completed, at which time the water spray function is used. During treatment, the insufflation function is used when the oral cavity needs to be partially dried (e.g., after the endodontic opening step of root canal treatment). During treatment, when the mouth needs to be moistened or cleaned locally, the function of a spray (a mixture of water and air) is used.
The three-purpose gun is required to be used in conventional dental treatment, the nozzle rod needs to be extended into the oral cavity of a patient, and in order to avoid cross infection caused by microorganisms in the oral cavity of the patient being attached to the nozzle rod of the head of the three-purpose spray gun through spray, the aim of reducing the cross infection probability can be achieved by using a replaceable or disposable nozzle rod capable of being sterilized clinically.
However, there is a risk of infection in the hospital due to clinical contamination, i.e., water is sprayed from the head of the three-way spray gun, water and air are used for spraying, and the water and air are from the water supply system and the compressed air system of the dental treatment table of the dental chair. These water supplies and compressed air, which are transported through remote ducts, can be contaminated by bacteria, impurities coming off the machine, and the like. In clinical dentistry, the bacteria amount of medical water is required to be less than 500cfu/ml, but practical investigation shows that the bacteria number in the waterway of the dental comprehensive treatment chair is often more than 1000cfu/ml, and even up to 10000-. That is, serious contamination of dental treatment water systems has not been a local problem that could be resolved by disinfecting dental hand-held instruments, but rather an important risk factor for iatrogenic infections. The condition of gingival bleeding, tooth extraction wound surface and various open wound surfaces of tooth cleaning bleeding often appear in dental treatment, when a three-purpose gun is used for cleaning a treatment area, a large amount of bacteria supply water through a polluted dental chair, and polluted compressed air enters the wound surface and further enters a human body circulation system, so that the risk of infection is possibly caused.
The three-purpose spray gun head that uses at present can't solve because the inside bacterium resorption of patient's oral cavity leads to the pollution problem of the rifle body of three-purpose spray gun head, probably causes the serious consequence of nosocomial infection. Therefore, there is a need to design a spray gun that can prevent bacterial suck back.
SUMMERY OF THE UTILITY MODEL
In view of the above analysis, the present invention aims to provide a water vapor blocking and back suction preventing three-purpose spray gun head for solving the problem that the existing spray gun has bacteria back suction to cause the pollution of the spray gun body and even the pollution to the water supply system or the compressed air system of the dental treatment table of the dental chair.
The purpose of the utility model is mainly realized through the following technical scheme:
a three-purpose spray gun head for preventing suck-back is blocked to aqueous vapor, includes: a nozzle stem, a suck-back blocker, and a lance stem; the spray gun rod is connected with the dental comprehensive treatment chair, the resorption blocking device is arranged between the spray gun rod and the spray gun rod, and the spray gun rod is communicated with the spray gun rod through the resorption blocking device; the nozzle rod is provided with an inner pipe and an outer pipe, and can realize water spraying, air spraying and water vapor spraying at the same time; the suck-back blocker is capable of allowing moisture to flow from the lance stem to the nozzle stem while blocking moisture from flowing from the nozzle stem to the lance stem.
Furthermore, the inner pipe is a water outlet channel, the outer pipe is a gas outlet air passage, and the water outlet channel is sleeved inside the gas outlet air passage.
Further, the spray gun rod includes: a water inlet channel and an air inlet channel; the water inlet channel is sleeved inside the air inlet air passage.
Further, the suck-back blocker includes: the suck-back blocks the airway and the suck-back blocks the water channel.
Furthermore, two ends of the back suction blocking air passage are respectively communicated with the air inlet air passage and the air outlet air passage; the two ends of the suck-back blocking water channel are respectively communicated with the water inlet channel and the water outlet channel.
Further, the suck-back blocker further includes: a water check valve and a gas check valve; the water check valve is arranged in the suck-back blocking water channel, and the air check valve is arranged in the suck-back blocking air channel.
Further, the water check valve includes: a first water check valve and a second water check valve; the gas check valve includes: a first gas check valve and a second gas check valve.
Further, the inlet channel is in communication with the outlet channel through a water check valve that only allows water to flow from the inlet channel to the outlet channel.
Further, the air inlet passage is communicated with the air outlet passage through an air one-way valve; the gas check valve can only allow gas to flow from the inlet gas passage to the outlet gas passage.
Furthermore, the water check valve and the air check valve are made of medical silica gel materials.
The utility model discloses technical scheme can realize one of following effect at least:
1. the three-purpose spray gun head with the suck-back prevention function divides the nozzle rod into two sections so as to integrate the blocker on the nozzle rod, effectively prevents bacteria in the oral cavity of a patient from suck-back by using the one-way valve, and avoids the problem of cross infection caused by the pollution of the gun body of the three-purpose spray gun.
2. The utility model discloses a resorption blocker has water, gas, fog resorption and blocks the function, realizes blocking the resorption of water or gas by water resorption blocker (water check valve), gas resorption blocker (gas check valve). Can prevent the water vapor fog of the three-purpose spray gun head in the oral cavity from being sucked back, and avoid the pathogenic microorganisms in the oral cavity of a patient from polluting the three-purpose spray gun head.
3. The utility model discloses a water check valve and check valve all are provided with two, block through the two-stage and avoid virus or bacterium resorption, realize better resorption and block the effect, ensure can not pollute the inside water tank of treatment chair, avoid causing the infection.
The utility model discloses in, can also make up each other between the above-mentioned each technical scheme to realize more preferred combination scheme. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.
FIG. 1 shows the head and nozzle rod of the three-purpose spray gun for blocking water vapor and preventing suck-back;
FIG. 2 is a schematic view of a suck-back blocker;
FIG. 3 is a schematic view of a suck-back blocking state;
FIG. 4 is a schematic view of a normal water-spraying state.
Reference numerals:
1-a nozzle bar; 2-an air outlet passage; 3-water outlet channel; 4-gas check valve; 5-a water check valve; 6-first check valve mounting; 7-a second one-way valve mounting; 8-a third one-way valve mounting section; 9-buckling; 10-an air intake duct; 11-water inlet channel.
Detailed Description
The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of the invention, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit the scope of the invention.
The utility model discloses a concrete embodiment, as shown in fig. 1, fig. 2, discloses a three way spray gun rifle head of resorption is prevented in aqueous vapor blocking, include: a nozzle rod 1, a spray gun rod and a suck-back blocker; the resorption blocking device is arranged between the nozzle rod 1 and the spray gun rod, two ends of the resorption blocking device are respectively connected with the nozzle rod 1 and the spray gun rod, and the spray gun rod is arranged on the dental comprehensive treatment chair and can spray liquid and/or gas for flushing the oral cavity; the suck-back blocker can block the liquid or gas used for cleaning the oral cavity from sucking back to pollute the water tank of the treatment chair during treatment.
Furthermore, one end of the spray gun rod is connected with an inlet joint of the suck-back blocker, and the other end of the spray gun rod is connected with an outlet of the treatment chair; the nozzle bar 1 is connected to an outlet connector of a suck-back blocker, and gas or liquid ejected from the gun bar can be ejected from the nozzle bar 1 through the suck-back blocker, but the gas or liquid cannot flow from the nozzle bar 1 to the gun bar.
Further, the nozzle bar 1 includes: the inner pipe is sleeved inside the outer pipe; specifically, the inner pipe is a water outlet channel 3, the outer pipe is a gas outlet air flue 2, and the water outlet channel 3 is sleeved in the gas outlet air flue.
Further, the spray gun rod includes: the air inlet passage comprises an air inlet passage 10 and a water inlet channel 11, wherein the water inlet channel 11 is sleeved in the air inlet passage 10.
Further, the water outlet channel 3 is communicated with the water inlet channel 11, and the air outlet channel 2 is communicated with the air inlet channel 10.
Further, the suck-back blocker includes: a water check valve 5, a gas check valve 4, an outlet joint and an inlet joint. Wherein, the water check valve 5 is used as a water blocking device, which can allow water to flow from the water inlet channel 11 to the water outlet channel 3 and simultaneously prevent water from being sucked back from the water outlet channel 3 to the water inlet channel 11; the gas check valve 4 acts as a gas block, allowing gas to be prevented from being sucked back from the gas outlet channel 2 to the gas inlet channel 10.
Further, the suck-back blocker includes: the back suction blocking water channel is arranged inside the back suction blocking air channel, two ends of the back suction blocking water channel are respectively connected with the water outlet channel 3 and the water inlet channel 11, and two ends of the back suction blocking air channel are respectively connected with the air outlet channel 2 and the air inlet channel 10.
That is, the inner pipe (i.e., the water outlet channel 3) of the nozzle rod 1 is hermetically connected with the water outlet of the suck-back blocker, and the outer pipe (i.e., the air outlet channel 2) of the nozzle rod 1 is hermetically connected with the air outlet of the suck-back blocker. The water inlet of the suck-back blocker is hermetically connected with the water inlet channel 11, and the air inlet of the suck-back blocker is hermetically connected with the air inlet channel 10.
Furthermore, a water check valve 5 is arranged in the suck-back blocking water channel, and an air check valve 4 is arranged in the suck-back blocking air channel.
Specifically, the suck-back blocker further includes: a first check valve mounting part 6, a second check valve mounting part 7, and a third check valve mounting part 8; wherein, the water check valve 5 is fixedly installed between the first check valve installation part 6 and the second check valve installation part 7, and the air check valve 4 is fixedly installed between the second check valve installation part 7 and the third check valve installation part 8.
As shown in fig. 2, the first check valve installation part 6 is installed between the suck-back blocking waterway and the suck-back blocking airway, partially sealing the suck-back blocking airway; the second check valve installation part 7 is arranged on the suck-back blocking water channel, and the third check valve installation part is arranged on the suck-back blocking air channel.
In a specific embodiment of the present invention, the material of the check valve is medical silica gel.
The three-purpose spray gun head of the utility model can realize water spraying, air spraying and mist spraying, and the water and the air are sprayed out simultaneously during the mist spraying; further, when water is sprayed, the water check valve 5 is opened, and water enters the water outlet channel 3 from the water inlet channel 11 through the water check valve 5; during air injection, the air one-way valve 4 is opened, and air enters the air outlet passage 2 from the air inlet passage 10 through the air one-way valve 4; during spraying, the water check valve 5 and the air check valve 4 are opened simultaneously, and water and air are sprayed out from the spray gun rod through the suck-back blocker and the nozzle rod 1 simultaneously.
The utility model discloses a three way spray gun rifle head is disposable product, accomplishes the treatment of a patient and changes the spray gun of renewal promptly, can effectively avoid the infection of virus or bacterium.
The utility model discloses a three way spray gun rifle head is used to dentistry with blocker function, include the nozzle pole 1 of constituteing by inner tube and outer tube, be equipped with above-mentioned disposable resorption blocker between nozzle pole 1 and the spray gun, the water outlet sealing connection of the inner tube of nozzle pole and disposable blocker, the outer tube of nozzle pole and the gas outlet sealing connection of disposable blocker. As shown in fig. 4, the one-way valve can realize normal spraying of water and gas, and simultaneously can prevent water or gas from being sucked back to the internal water tank of the treatment chair, so as to avoid polluting the inside of the treatment instrument and causing infection.
Further, the nozzle rod 1 is detachably connected with the suck-back blocker, or the nozzle rod is fixedly connected with the suck-back blocker, or the nozzle rod and the suck-back blocker are of an integrated structure.
In implementation, as shown in fig. 3, when the check valve is closed at the moment when the three-purpose spray gun head stops working, the backflow of air, water, fog and the like is blocked at the front end of the three-purpose spray gun head by the check valve in the blocker, and the air path is kept clean because the backflow cannot enter the three-purpose gun handle. The utility model discloses an use the check valve to reach and effectively prevent the inside bacterium resorption in patient's oral cavity and lead to the infection problem that the pollution of three way spray gun rifle head causes. The blocker is disposable blocker, can accord with one person one machine of medical requirement, ensures patient's safety, avoids cross infection.
Compared with the prior art, the utility model discloses can prevent the aqueous vapor fog resorption of oral cavity three way spray gun rifle head, avoid patient's oral cavity bacterial and pathogenic microorganism to pollute the spray gun rifle bar. The suck-back blocker covers blocking of water paths, air paths and fog. The water and gas blocking device blocks impurities and bacteria in the backflow gas through the one-way valve, and the gas circuit of the head of the three-purpose spray gun is kept clean. The suck-back blocker is a disposable blocker, one person can meet medical requirements, the safety of patients is guaranteed, and cross infection is avoided.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022952349.9U CN213883612U (en) | 2020-12-11 | 2020-12-11 | Triple-purpose spray gun head for blocking water vapor and preventing suck-back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022952349.9U CN213883612U (en) | 2020-12-11 | 2020-12-11 | Triple-purpose spray gun head for blocking water vapor and preventing suck-back |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213883612U true CN213883612U (en) | 2021-08-06 |
Family
ID=77102163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022952349.9U Expired - Fee Related CN213883612U (en) | 2020-12-11 | 2020-12-11 | Triple-purpose spray gun head for blocking water vapor and preventing suck-back |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213883612U (en) |
-
2020
- 2020-12-11 CN CN202022952349.9U patent/CN213883612U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210806 |
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| CF01 | Termination of patent right due to non-payment of annual fee |