CN209332838U - A kind of negative pressure suction device - Google Patents
A kind of negative pressure suction device Download PDFInfo
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- CN209332838U CN209332838U CN201821921754.0U CN201821921754U CN209332838U CN 209332838 U CN209332838 U CN 209332838U CN 201821921754 U CN201821921754 U CN 201821921754U CN 209332838 U CN209332838 U CN 209332838U
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- reflux
- valve seat
- middle shell
- disabling mechanism
- shell
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Abstract
The utility model relates to a kind of negative pressure suction devices, including waste collection bottle, reflux disabling mechanism, fixed device, connecting tube, reflux disabling mechanism shell is made of upper cover, middle shell and bottom case, and corresponding position is respectively equipped with reflux disabling mechanism attraction connector, the reflux disabling mechanism connector for protruding from middle shell outer wall on middle shell；The disabling mechanism that flows back is interior to be equipped with waste reflux shut-off valve, including spool, valve rod, valve seat and the snorkel being connected with valve seat, valve seat and the snorkel being connected with valve seat are installed on the reflux disabling mechanism and connector are attracted to extend corresponding position to middle shell enclosure interior direction, the contact surface of valve seat and spool is in the funnelform recessed circular conical surface of inverted conical shape, spool is in inverted cone, and the contact surface with valve seat is in the dome conical surface to match with the recessed circular conical surface.The utility model is faster than floating-type stopper reaction speed, can stablize and effectively achieve the purpose that prevention waste liquid enters negative pressure source.
Description
Technical field
The utility model relates to the field of medical instrument technology, specially a kind of negative pressure suction device.
Background technique
Vacuum drawing technique is a new technology developed in recent years, and the negative pressure that it is generated using Negative pressure machine will perform the operation
The smog generated in waste liquid and surgical procedure in human body is generated in the process to detach, and in the course of surgery due to carelessness or nothing
People guard causes waste collecting device to fill not close and work on, and makes that Negative pressure machine is caused to damage in waste reflux to Negative pressure machine,
Or pipeline blockage.Or waste reflux caused by pipeline incorrect link is carried out after waste collection bottle lead since medical worker changes
The damage for causing Negative pressure machine, to reduce the functionality of integral operating room.The prior art is cut using the reflux that floating-type principle is formed
Only there is the weakness for reacting slow in scheme, and buoy could be floated to form closure by needing many waste liquids to enter, and have waste liquid to enter negative
The danger of potential source.
Summary of the invention
The purpose of this utility model is to overcome the defects of the above-mentioned prior art, provide a kind of anti-backflow waste liquid entrance
It negative pressure source and is swift in response, safe and reliable negative pressure suction device.
The utility model is achieved through the following technical solutions: a kind of negative pressure suction device, including waste collection bottle,
Flow back disabling mechanism, fixed device, connecting tube, and the waste collection bottle, reflux disabling mechanism are individually fixed on fixed device,
It is connected between the waste collection bottle, between waste collection bottle and reflux disabling mechanism by connecting tube, it is characterised in that: described
Flow back disabling mechanism 4, and shell is made of upper cover 410, middle shell 420 and bottom case 430, and corresponding position is distinguished on the middle shell 420
Attract connector 443, the reflux external connector 421 of disabling mechanism equipped with the reflux disabling mechanism for protruding from middle shell outer wall；
410 inner wall of upper cover is equipped with upper cover screw thread 411, and the middle shell top outer rim is equipped with the middle shell screw thread to match
423；The silicagel pad groove 413 of built-in silicagel pad 450 is equipped in the upper cover 410；When the upper cover screw thread 411 and middle shell screw thread
423 corresponding rotations, keep upper cover 410 and middle shell 420 fixed, suitable for reading 424 and 413 close proximity of silicagel pad groove of the middle shell,
Upper cover 410 and middle shell 420 is formed to be tightly connected；
It is equipped with the spring mounting groove 431 of placement spring 480 in the bottom case 430, is connected with above spring 480 with fluted
Liquid collecting part 470, be equipped with periphery above the liquid collecting part 470 and the middle 420 inner wall airtight connection of shell extend obliquely downward
Drain inclined-plane 422,422 bottom opening of drain inclined-plane and the liquid collecting part 470 are suitable for reading corresponding；The edge 472 of liquid collecting part 470 fills
In the guide groove 427 constituted between the middle shell 420 and 422 bottom surface of drain inclined-plane, the middle shell 420 and 430 viscose glue of bottom case are solid
It is fixed；
It is additionally provided with waste reflux shut-off valve in 4 shell of reflux disabling mechanism, the waste reflux shut-off valve includes valve
Core 460, valve rod, valve seat 440 and the snorkel being connected with valve seat 440, valve seat 440 and the snorkel being connected with valve seat 440 installation
Connector 443 is attracted to extend corresponding position to middle shell enclosure interior direction in the reflux disabling mechanism, it is described with 440 phase of valve seat
Ventilation pipe outer wall even has been fixedly attached fixing card 442, passes through what is be arranged in the fixing card 442 and the middle shell inner walls
Corresponding 425 phase of fixing groove connects and fixes, and the snorkel one end being connected with valve seat 440 passes through middle shell shell respective through hole 426 and institute
Stating reflux disabling mechanism attracts the corresponding pipeline inner wall of connector 443 closely to connect；The contact of the valve seat 440 and spool 460
Face is in the funnelform recessed circular conical surface 441 of inverted conical shape, and the spool 460 is in inverted cone, is located at right above valve seat 440, with
The contact surface of valve seat 440 is in the dome conical surface 461 to match with the recessed circular conical surface 441；The valve rod includes the first guide rod
462, the corresponding vertical guide post in 410 center of upper cover is inserted into connecting rod 463, the second guide rod 464, first guide rod upper end
In 412, lower end is fixedly connected with 460 center of spool；Described 463 one end of connecting rod connects first guide rod 462, the other end
The upper end of second guide rod 464 is connected, the end of 464 lower end of the second guide rod insertion, 470 bottom centre of liquid collecting part is fixed
Hole 471 is fixed；First guide rod 462 and the second guide rod 464 are on longitudinal same central axes.
Utility model works principle: attract connector 443 and reflux disabling mechanism when blocking the reflux disabling mechanism
421 mouthfuls of connection the two when walking port, the reflux disabling mechanism 4 forms entire closed structure.The reflux cut-off machine as a result,
Structure attracts connector 443, recessed circular conical surface 441, reflux 4 cavity of disabling mechanism, the external connector 421 of reflux disabling mechanism to form gas
Road I.When having waste liquid to enter, waste liquid enters from the external connector 421 of reflux disabling mechanism, quickly along the drain inclined-plane 422
Into in 470 groove of liquid collecting part, the 470 liquid collecting part is moved down by waste liquid gravity, and band movable valve plug 460 moves down,
After being moved to certain distance, the dome conical surface 461 of the spool 460 is contacted with 441 mouthfuls of recessed circular conical surface of valve seat 440, simultaneously
Negative pressure has suction-operated to the dome conical surface 461, fits closely the dome conical surface 461 completely for 441 mouthfuls with recessed circular conical surface, so that gas circuit
I forms closure in the dome conical surface 461 and recessed 441 joint place of circular conical surface, and then makes the closing formed here of whole pipeline, negative pressure source
To without effect, i.e., the pipeline after sentencing to closure is without suction function, so that waste liquid can not be gone successively at male and fomale(M&F) closure
It flows back inside disabling mechanism 4, reaches the purpose that prevention waste liquid enters negative pressure source.
The utility model advantage compared with prior art: since the reflux of the utility model using the above structure ends machine
Structure, it is faster than floating-type stopper reaction speed, do not postpone, can stablize and effectively reach the mesh that prevention waste liquid enters negative pressure source
's；And structure is simple, it is detachable to repair.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the utility model
Example, for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of negative pressure suction device monnolithic case structure chart of specific embodiment of the present invention；
Fig. 2 is single waste collection bottle shape assumption diagram in specific embodiment of the present invention；
Fig. 3 is reflux disabling mechanism shape assumption diagram in specific embodiment of the present invention；
Fig. 4 is reflux disabling mechanism schematic diagram of internal structure in specific embodiment of the present invention；
Fig. 5 is the structural decomposition diagram of Fig. 3；
Fig. 6 is the structural representation of waste reflux shut-off valve, liquid collecting part, spring section in specific embodiment of the present invention
Figure.
Specific embodiment
Below with reference to the attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, belongs to the protection scope of the utility model.
The utility model embodiment is further described below in conjunction with Figure of description:
A kind of negative pressure suction device, including waste collection bottle, reflux disabling mechanism, fixed device, connecting tube, the waste liquid
Receiving flask, reflux disabling mechanism be individually fixed on fixed device, between the waste collection bottle, waste collection bottle and reflux cut
It is connected between locking mechanism by connecting tube.
Shown in Fig. 1, the fixed device includes bracket base 10, and 10 center of bracket base is fixed with pillar 11, branch
11 upper end fixing sleeve of column is connected to fixed bracket 12, and the reflux stopper 4 is installed on fixed 12 central upper portion hole location of bracket.Institute
It states waste collection bottle and selects 2 completely identical in structure first waste collection bottle 1A and the second waste collection bottle 1B, the first waste liquid
Receiving flask 1A, the second side waste collection bottle 1B are respectively equipped with fixed plate 103 and are plugged and fixed with the fixed bracket 12, left and right pair
Title is installed on fixed bracket 12.Fig. 2 is single waste collection bottle shape assumption diagram, the fixed plate 103 of each waste collection bottle
Upper end is connected with connector 13, and 13 both ends of connector are respectively connector A 131, connector B 132.
Shown in Fig. 3-Fig. 6, the reflux disabling mechanism 4, shell is made of upper cover 410, middle shell 420 and bottom case 430, institute
It states corresponding position on shell 420 and is respectively equipped with the reflux disabling mechanism attraction connector 443 for protruding from middle shell outer wall, reflux cut-off
The external connector 421 of mechanism.
410 inner wall of upper cover is equipped with upper cover screw thread 411, and the middle shell top outer rim is equipped with the middle shell screw thread to match
423；The silicagel pad groove 413 of built-in silicagel pad 450 is equipped in the upper cover 410；When the upper cover screw thread 411 and middle shell screw thread
423 corresponding rotations, keep upper cover 410 and middle shell 420 fixed, suitable for reading 424 and 413 close proximity of silicagel pad groove of the middle shell,
Upper cover 410 and middle shell 420 is formed to be tightly connected.
It is equipped with the spring mounting groove 431 of placement spring 480 in the bottom case 430, is connected with above spring 480 with fluted
Liquid collecting part 470, be equipped with periphery above the liquid collecting part 470 and the middle 420 inner wall airtight connection of shell extend obliquely downward
Drain inclined-plane 422,422 bottom opening of drain inclined-plane and the liquid collecting part 470 are suitable for reading corresponding；The edge 472 of liquid collecting part 470 fills
In the guide groove 427 constituted between the middle shell 420 and 422 bottom surface of drain inclined-plane, the middle shell 420 and 430 viscose glue of bottom case are solid
It is fixed.
It is additionally provided with waste reflux shut-off valve in 4 shell of reflux disabling mechanism, the waste reflux shut-off valve includes valve
Core 460, valve rod, valve seat 440 and the snorkel being connected with valve seat 440, valve seat 440 and the snorkel being connected with valve seat 440 installation
Connector 443 is attracted to extend corresponding position to middle shell enclosure interior direction in the reflux disabling mechanism, it is described with 440 phase of valve seat
Ventilation pipe outer wall even has been fixedly attached fixing card 442, passes through what is be arranged in the fixing card 442 and the middle shell inner walls
Corresponding 425 phase of fixing groove connects and fixes, and the snorkel one end being connected with valve seat 440 passes through middle shell shell respective through hole 426 and institute
Stating reflux disabling mechanism attracts the corresponding pipeline inner wall of connector 443 closely to connect；The contact of the valve seat 440 and spool 460
Face is in the funnelform recessed circular conical surface 441 of inverted conical shape, and the spool 460 is in inverted cone, using silica gel material, is located at valve seat
Right above 440, the contact surface with valve seat 440 is in the dome conical surface 461 to match with the recessed circular conical surface 441；The valve rod
Including the first guide rod 462, connecting rod 463, the second guide rod 464, first guide rod upper end on-fixed is inserted into 410 center of upper cover
In corresponding vertical guide post 412, first lower end of the guide rod is fixedly connected with 460 center of spool, first guide rod
462 can do along guide post 412 with movable valve plug 460 and vertically move；Described 463 one end of connecting rod connects first guide rod
462, the other end connects the upper end of second guide rod 464, and 470 bottom centre of liquid collecting part is inserted into 464 lower end of the second guide rod
Fixed end-hole 471 be fixed；First guide rod 462 and the second guide rod 464 are on longitudinal same central axes.First
Guide rod 462, connecting rod 463, the second guide rod 464 are all made of stainless steel material, between it is connected by being welded and fixed.
The piping connection relationship waste liquid suction line 2 as shown in Figure 1: between waste collection bottle and between reflux disabling mechanism
Suction line A mouth 210 is connect with waste liquid sucking head 9, waste liquid suction line B mouth 220 and the first upper first suction inlet of waste collection bottle 1A
101 connections, are equipped with the first connecting tube 5, the company of the first connecting tube 5 between the first waste collection bottle 1A and the second waste collection bottle 1B
Adapter tube A1 mouth 510 is connect with outlet port 102 on the first waste collection bottle 1A, connecting tube A2 mouth 520 and the second waste collection bottle 1B
On suction inlet 101 connect, the company of outlet port 102 on connecting tube B1 mouth 610 of the second connecting tube 6 and the second waste collection bottle 1B
It connects, connecting tube B2 mouth 620 is connect with the connector B 132 of the second waste collection bottle 1B, D1 mouthfuls of the connecting tube of third connecting tube 8
810 connect with 132 connector B on the first waste collection bottle 1A, the connection of connecting tube D2 mouth 820 and the second waste collection bottle 1B
The mouth connection of A 131, the connecting tube C1 mouth 710 of the 4th connecting tube 7 are connect with the connector A 131 on the first waste collection bottle 1A,
Connecting tube C2 mouth 720 is connect with the reflux external connector 421 of disabling mechanism, and the suction tube B mouth 320 of suction tube 3 and reflux end
Mechanism attracts connector 443 to connect, and suction tube A mouth 310 connects negative pressure source.
When block the reflux disabling mechanism attract connector 443 and reflux disabling mechanism to connect 421 mouthfuls the two are flat
When mouth, the reflux disabling mechanism 4 forms entire closed structure.The reflux disabling mechanism attracts connector 443, recessed as a result,
Circular conical surface 441, reflux 4 cavity of disabling mechanism, the external connector 421 of reflux disabling mechanism form gas circuit I.
In practical operation, reflux disabling mechanism suction tube A mouth 310 is connected with hospital negative pressure source interface, in negative pressure
Under the action of waste liquid along waste liquid sucking head 9, waste liquid suction line 2 enter the first waste collection bottle 1A, when the first waste collection bottle
When waste collection is full in 1A, waste liquid enters the second waste collection bottle 1B by the first connecting tube 5, when in the second waste collection bottle 1B
When waste collection is full, and when medical staff fails to close negative pressure source in time or remove negative pressure suction device, waste liquid is being born
Sequentially through the second connecting tube 6, third connecting tube 8, the 4th connecting tube 7 under the action of pressure, last waste liquid is from reflux cut-off machine
The external connector 421 of structure enters in reflux disabling mechanism 4, rapidly enters 470 groove of liquid collecting part along the drain inclined-plane 422
Interior, the liquid collecting part 470 is moved down by waste liquid gravity, and band movable valve plug 460 moves down, when being moved to certain distance
Afterwards, 441 mouthfuls of recessed circular conical surface of the dome conical surface 461 of the spool 460 and valve seat 440 contact, while negative pressure is to the dome conical surface 461
Have suction-operated, fit closely the dome conical surface 461 completely for 441 mouthfuls with recessed circular conical surface so that gas circuit I the dome conical surface 461 with
Recessed 441 joint place of circular conical surface forms closure, and then makes the closing formed here of whole pipeline, and negative pressure source is to nothing at male and fomale(M&F) closure
Effect, i.e., the pipeline after sentencing to closure is without suction function, so that waste liquid can not be gone successively in reflux disabling mechanism 4
Portion reaches the purpose that prevention waste liquid enters negative pressure source.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should
Subject to the scope of protection of the claims.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should
Subject to the scope of protection of the claims.
Claims (1)
1. a kind of negative pressure suction device, including waste collection bottle, reflux disabling mechanism, fixed device, connecting tube, the waste liquid are received
Collection bottle, reflux disabling mechanism be individually fixed on fixed device, between the waste collection bottle, waste collection bottle and reflux end
It is connected between mechanism by connecting tube, it is characterised in that: the shell of reflux disabling mechanism (4) is by upper cover (410), middle shell
(420) it is constituted with bottom case (430), the reflux disabling mechanism attraction for protruding from middle shell outer wall is respectively equipped on the middle shell (420)
Connector (443) and the reflux external connector of disabling mechanism (421)；
Upper cover (410) inner wall is equipped with upper cover screw thread (411), and middle shell (420) the top outer rim is equipped with the middle shell to match
Screw thread (423)；The silicagel pad groove (413) of built-in silicagel pad (450) is equipped in the upper cover (410)；The upper cover screw thread
(411) upper cover (410) and middle shell (420), (424) suitable for reading and the silicon of the middle shell (420) are connected and fixed with middle shell screw thread (423)
Rubber mat groove (413) close proximity, upper cover (410) and middle shell (420) form and are tightly connected；
It is equipped with the spring mounting groove (431) of placement spring (480) in the bottom case (430), is connected with and has above spring (480)
The liquid collecting part (470) of groove, liquid collecting part (470) top is equipped with periphery and middle shell (420) the inner wall airtight connection tilts
The drain inclined-plane (422) extended downwardly, drain inclined-plane (422) bottom opening and the liquid collecting part (470) are suitable for reading corresponding；Liquid collecting
The edge (472) of part (470) is loaded in the guide groove (427) constituted between the middle shell (420) and drain inclined-plane (422) bottom surface,
The middle shell (420) is fixed with bottom case (430) viscose glue；
It is additionally provided with waste reflux shut-off valve in reflux disabling mechanism (4) shell, the waste reflux shut-off valve includes spool
(460), valve rod, valve seat (440) and the snorkel being connected with valve seat (440), valve seat (440) and are connected logical with valve seat (440)
Tracheae is installed on the reflux disabling mechanism and connector (443) is attracted to extend corresponding position to middle shell enclosure interior direction, described
The ventilation pipe outer wall being connected with valve seat (440) has been fixedly attached fixing card (442), by the fixing card (442) and it is described in
The corresponding fixing groove (425) being arranged in shell inner walls mutually connects and fixes, during the snorkel one end being connected with valve seat (440) passes through
Shell shell respective through hole (426) attracts the corresponding pipeline inner wall of connector (443) closely to connect with the reflux disabling mechanism；Institute
The contact surface of valve seat (440) and spool is stated in the funnelform recessed circular conical surface (441) of inverted conical shape；The spool (460) is in rounding
Cone is located at right above valve seat (440), and the contact surface of the spool (460) and valve seat (440) is in and the recessed circular conical surface
(441) the dome conical surface (461) to match；The valve rod includes the first guide rod (462), connecting rod (463), the second guide rod (464),
First guide rod (462) upper end is inserted into the corresponding vertical guide post (412) in upper cover (410) center, lower end and spool
(460) center is fixedly connected；Described connecting rod (463) one end connects first guide rod (462), other end connection described the
The upper end of two guide rods (464), the fixed end-hole of the second guide rod (464) lower end insertion liquid collecting part (470) bottom centre
(471) it is fixed；First guide rod (462) and the second guide rod (464) are on longitudinal same central axes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821921754.0U CN209332838U (en) | 2018-11-21 | 2018-11-21 | A kind of negative pressure suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821921754.0U CN209332838U (en) | 2018-11-21 | 2018-11-21 | A kind of negative pressure suction device |
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| Publication Number | Publication Date |
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| CN209332838U true CN209332838U (en) | 2019-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821921754.0U Active CN209332838U (en) | 2018-11-21 | 2018-11-21 | A kind of negative pressure suction device |
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| Country | Link |
|---|---|
| CN (1) | CN209332838U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114113004A (en) * | 2020-08-28 | 2022-03-01 | 深圳市帝迈生物技术有限公司 | Waste liquid treatment method and device and sample analyzer |
-
2018
- 2018-11-21 CN CN201821921754.0U patent/CN209332838U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114113004A (en) * | 2020-08-28 | 2022-03-01 | 深圳市帝迈生物技术有限公司 | Waste liquid treatment method and device and sample analyzer |
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