CN204745357U - Medical negative pressure suction check valve device - Google Patents
Medical negative pressure suction check valve device Download PDFInfo
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- CN204745357U CN204745357U CN201520540009.1U CN201520540009U CN204745357U CN 204745357 U CN204745357 U CN 204745357U CN 201520540009 U CN201520540009 U CN 201520540009U CN 204745357 U CN204745357 U CN 204745357U
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- negative pressure
- check valve
- bottle
- interface
- valve body
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Abstract
The utility model discloses a medical negative pressure suction check valve device, including long -pending dirty bottle, negative pressure suction interface, negative pressure emergence interface and check valve subassembly, form the negative pressure space in the long -pending dirty bottle, negative pressure suction interface sets up to go up just in long -pending dirty bottle and communicates with each other with the negative pressure space for bottle internal -external differential pressure control down, in the sewage that produces during with the dental care through the suction pipeline and secretion aspirated long -pending dirty bottle, the check valve subassembly lies in long -pending dirty bottle and to aspirate the interface continuous with the negative pressure. The utility model discloses the effectual sewage overflow that prevents in album dirty bucket is come out, can effectually prevent cross infection simultaneously, has improved dental treatment efficiency.
Description
Technical field
This utility model relates to negative suction system field, especially relates to a kind of Medical negative pressure suction check valve apparatus.
Background technology
In Medical oral cavity therapeutic equipment, suction machine aspirates for the garbage produced in dental care process, sewage etc. being undertaken by the suction force that negative pressure produces the equipment got rid of.This suction machine is usually divided into dry tap formula, half-driedly wet takes out, wetly take out three kinds, dry tap formula negative pressure system is mainly used in being provided with gas-liquid separation device in equipment, or negative pressure equipment can only be installed on the position higher than therapy apparatus plane such as roof, can also Dental Technician Office be arranged in addition, the dust produced when reparation or polishing tooth is aspirated; What wet type negative pressure suction machine adopted is water ring pump, and the feature of water ring pump is that negative pressure value is high and flow is little, be generally used for that operation is more, aspirate based on liquid when, can be used for stomatological hospital and private Outpatient Service Stomatology and operating room etc.
The medical suction machine majority that domestic market occurs is that half-dried wetting is taken out, and its operation principle is drawn in dirt colleceting bucket by the sewage produced during dental care to preserve, and after sewage arrival is a certain amount of, suction machine quits work, and starts sewage effluent.Half-dried wet odd test negative pressure-pumping machine is concentrated and is carried out gas-liquid separation and saved cost; also more convenient installation heavy metal collector; but; in use we find; often there will be the phenomenon generation that sewage overflows in dirt colleceting bucket; be easy to like this cross infection occurs, greatly reduce the efficiency of dental treatment.
Utility model content
The purpose of this utility model is the defect overcoming prior art, providing a kind of Medical negative pressure to aspirate check valve apparatus, by setting up check valve assembly, utilizing the duty of the buoyancy control suction machine of sewage, effectively to prevent sewage overflow out.
For achieving the above object, the utility model proposes following technical scheme: a kind of Medical negative pressure suction check valve apparatus, comprise contamination bottle, at least one negative pressure-pumping interface and check valve assembly, negative pressure space is formed in described contamination bottle, described negative pressure-pumping interface to be arranged on described contamination bottle and to communicate with described negative pressure space, and described check valve assembly is positioned at described contamination bottle and is connected with described negative pressure-pumping interface.
Preferably, described check valve assembly comprises valve body, spool and at least one ball float, described valve body upper end has the opening be connected with described negative pressure-pumping interface, and described spool and ball float are all positioned at valve body, and described spool rises the opening sealed up on described valve body under the effect of described ball float.
Preferably, described check valve assembly also comprises and being fixed in described valve body and gag lever post near described valve body bottom, for carrying out spacing to described ball float.
Preferably, described spool upper end is sealing, and described sealing is fastened on when described check valve assembly closes in the opening on described valve body.
Preferably, described sealing exterior circumferential is arranged with a sealing ring.
Preferably, described valve body offers the through hole be connected with described contamination bottle inside.
Preferably, also comprise negative pressure generation interface, described negative pressure generation interface to be arranged on described contamination bottle and to communicate with described contamination bottle, forms described negative pressure space for making in described contamination bottle.
Preferably, described contamination bottle comprises bottle and covers the bottle cap on described bottle, and described negative pressure-pumping interface and negative pressure generation interface are all arranged on described bottle cap.
Preferably, described bottle cap is threaded with described bottle.
The beneficial effects of the utility model are: this utility model effectively prevents sewage overflow in dirt colleceting bucket out, effectively can prevent cross infection simultaneously, improve dental treatment efficiency.
Accompanying drawing explanation
Fig. 1 is the perspective view of this utility model Medical negative pressure suction check valve apparatus;
Fig. 2 is the perspective view of this utility model Medical negative pressure suction check valve apparatus split;
Fig. 3 is this utility model check valve assembly sectional structure schematic diagram in its natural state;
Fig. 4 is this utility model check valve assembly sectional structure schematic diagram in sealed states.
Reference numeral: 1, contamination bottle, 11, bottle cap, 12, bottle, 2, negative pressure generation interface, 3, negative pressure-pumping interface, 4, check valve assembly, 41, valve body, 411, opening, 412, through hole, 42, spool, 421, sealing, 422, sealing ring, 43, ball float, 44, gag lever post.
Detailed description of the invention
Below in conjunction with accompanying drawing of the present utility model, clear, complete description is carried out to the technical scheme of this utility model embodiment.
Shown in composition graphs 1 and Fig. 2, a kind of Medical negative pressure suction check valve apparatus that this utility model embodiment discloses, for controlling the duty of negative pressure-pumping machine in aspiration procedure, it comprises contamination bottle 1, negative pressure generation interface 2, negative pressure-pumping interface 3 and check valve assembly 4, contamination bottle 1 is for preserving the garbage that produces in dental care process as the sewage in patient's mouth and secretions etc., contamination bottle 1 comprises bottle cap 11 and the bottle 12 of split, bottle cap 11 and bottle 12 are threaded, namely bottle cap 11 inwall arranges female thread, the external screw thread that bottle 12 upper end relative set matches with female thread.The connected mode of bottle cap 11 and bottle 12 is not limited to being threaded here, and it is all applicable that other can realize modes that both connect, and certain contamination bottle also can be the design of integral structure or other structures.
Negative pressure generation interface 2 and negative pressure-pumping interface 3 are all arranged on bottle cap 11, and negative pressure generation interface 2 forms a negative pressure space for making in contamination bottle.Negative pressure-pumping interface 3 connects suction channel (not shown) and is connected with the negative pressure space in contamination bottle, under controlling at bottle inside and outside differential pressure, be drawn in contamination bottle by suction channel by the sewage produced during dental care and secretions, negative pressure-pumping interface 3 can arrange one or more.
Check valve assembly 4 is positioned at contamination bottle 1 and is connected with negative pressure-pumping interface 3, for sealing or unlatching negative pressure-pumping interface 3, controls the duty of negative pressure-pumping interface 3.Particularly, shown in composition graphs 3 and Fig. 4, check valve assembly 4 comprises valve body 41, spool 42, ball float 43 and gag lever post 44, valve body 41 is cylindric, valve body 41 upper end offers the opening 411 be connected with negative pressure-pumping interface 3, and side opening is provided with one or more through hole 412 be connected with contamination bottle 1 inside.Spool 42 is positioned at valve body 41, spool 42 inside for hollow and its top and bottom are opening shape, ball float 43 is positioned at valve body 41, and the diameter of ball float 43 is slightly less than the internal diameter of spool 42, and ball float 43 can arrange one or more.The upper end of spool 42 has a sealing 421, and sealing 421 is fastened in the opening 411 on valve body 41 under the effect of ball float 43 buoyancy, seals up negative pressure-pumping interface 3.In order to strengthen the sealing between the opening 411 on sealing 421 and valve body 41, be arranged with a sealing ring 422 in sealing 421 exterior circumferential, sealing circle 422 can adopt O RunddichtringO.
Gag lever post 44 is fixed in the valve body 41 and position of close valve body 41 bottom, for limiting the position of ball float 43.Gag lever post 44 can be a screw rod.As shown in Figure 3, in its natural state, when namely not having sewage in contamination bottle 1, ball float 43 does not have buoyancy, and now it contacts with gag lever post 44 in self gravitation effect; Along with the sewage in contamination bottle 1 increases gradually, ball float 43, under dirty buoyancy of water, slowly rises to spool 42 top-direction, and band movable valve plug 42 synchronously moves upward; As shown in Figure 4, when spool 42 is pushed up valve body 41 upper end open 411 place by ball float 43 under dirty buoyancy of water, when closedown sealing is carried out to opening 411, now negative pressure-pumping interface 3 is not communicated with the negative pressure space in bottle 12, cannot carry out suction operation, after sewage discharge is gone out, negative pressure-pumping interface 3 is resumed work again, effectively can prevent sewage overflow in contamination bottle 1 out like this, effectively can prevent cross infection simultaneously, improve therapeutic efficiency.
Technology contents of the present utility model and technical characteristic have disclosed as above; but those of ordinary skill in the art still may do all replacement and the modification that do not deviate from this utility model spirit based on teaching of the present utility model and announcement; therefore; this utility model protection domain should be not limited to the content that embodiment discloses; and various do not deviate from replacement of the present utility model and modification should be comprised, and contained by present patent application claim.
Claims (9)
1. a Medical negative pressure suction check valve apparatus, it is characterized in that: comprise contamination bottle, at least one negative pressure-pumping interface and check valve assembly, negative pressure space is formed in described contamination bottle, described negative pressure-pumping interface to be arranged on described contamination bottle and to communicate with described negative pressure space, and described check valve assembly is positioned at described contamination bottle and is connected with described negative pressure-pumping interface.
2. Medical negative pressure suction check valve apparatus according to claim 1, it is characterized in that, described check valve assembly comprises valve body, spool and at least one ball float, described valve body upper end has the opening be connected with described negative pressure-pumping interface, described spool and ball float are all positioned at valve body, and described spool rises the opening sealed up on described valve body under the effect of described ball float.
3. Medical negative pressure according to claim 2 suction check valve apparatus, is characterized in that, described check valve assembly also comprises and being fixed in described valve body and gag lever post near described valve body bottom, for carrying out spacing to described ball float.
4. Medical negative pressure suction check valve apparatus according to claim 2, it is characterized in that, described spool upper end is sealing, and described sealing is fastened on when described check valve assembly closes in the opening on described valve body.
5. Medical negative pressure suction check valve apparatus according to claim 4, it is characterized in that, described sealing exterior circumferential is arranged with a sealing ring.
6. Medical negative pressure suction check valve apparatus according to claim 2, is characterized in that, described valve body offers the through hole be connected with described contamination bottle inside.
7. the Medical negative pressure suction check valve apparatus according to claim 1 ~ 6 any one, it is characterized in that, also comprise negative pressure generation interface, described negative pressure generation interface to be arranged on described contamination bottle and to communicate with described contamination bottle, forms described negative pressure space for making in described contamination bottle.
8. Medical negative pressure suction check valve apparatus according to claim 7, it is characterized in that, described contamination bottle comprises bottle and covers the bottle cap on described bottle, and described negative pressure-pumping interface and negative pressure generation interface are all arranged on described bottle cap.
9. Medical negative pressure suction check valve apparatus according to claim 8, it is characterized in that, described bottle cap is threaded with described bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520540009.1U CN204745357U (en) | 2015-07-23 | 2015-07-23 | Medical negative pressure suction check valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520540009.1U CN204745357U (en) | 2015-07-23 | 2015-07-23 | Medical negative pressure suction check valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204745357U true CN204745357U (en) | 2015-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520540009.1U Active CN204745357U (en) | 2015-07-23 | 2015-07-23 | Medical negative pressure suction check valve device |
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| CN (1) | CN204745357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984470A (en) * | 2015-07-23 | 2015-10-21 | 江苏岱洛医疗科技有限公司 | Medical negative pressure suction inverted valve apparatus |
-
2015
- 2015-07-23 CN CN201520540009.1U patent/CN204745357U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984470A (en) * | 2015-07-23 | 2015-10-21 | 江苏岱洛医疗科技有限公司 | Medical negative pressure suction inverted valve apparatus |
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