CN2808183Y - Pressure-controllable water and gas injection cartridge - Google Patents
Pressure-controllable water and gas injection cartridge Download PDFInfo
- Publication number
- CN2808183Y CN2808183Y CN 200520013350 CN200520013350U CN2808183Y CN 2808183 Y CN2808183 Y CN 2808183Y CN 200520013350 CN200520013350 CN 200520013350 CN 200520013350 U CN200520013350 U CN 200520013350U CN 2808183 Y CN2808183 Y CN 2808183Y
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- CN
- China
- Prior art keywords
- bayonet lock
- gas injection
- pressure
- water filling
- filling gas
- 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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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a pressure controllable water and gas injection cartridge which comprises a water and gas injection component composed of a piston and a cylinder, wherein the piston is provided with a pressure controllable impelling apparatus which comprises a cartridge base provided with a toothed slot and a guiding slide slot. A clamping pin base is arranged in the cartridge base, and is provided with a clamping pin base guide rail and a clamping pin, and the clamping pin is provided with a clamping hook matched with the toothed slot. The back end of the piston is connected with a pushing rod, and the front end of the pushing rod is provided with a pushing rod guide rail positioned in the guiding slide slot. The front end of the clamping pin base extends inwards and is connected with the back end of the pushing rod through screw threads, the clamping pin base is provided with a connecting sleeve connected with the back end of the pushing rod through screw threads, the outer side of the connecting sleeve is sheathed with a pull rod, the front end of the pull rod contacts the front end of the clamping pin base, and the back end of the pull rod extends out of the cartridge base. The pull rod is provided with a slide slot, the connecting sleeve is provided with a slide bar positioned in the slide slot, and the front end of the pull rod is provided with a wedge part contacting the clamping hook. The utility model has the advantages of adaptability to the field of high pressure or exact pressure, broad application range, replaceable property of the injection inner core, convenient operation and exact and controllable pressure.
Description
Technical field
This utility model relates to a kind of water filling gas injection tube, especially a kind of controlled water filling gas injection tube of pressure that is applicable to high pressure or needs the accurate pressure occasion.
Background technology
Present water filling gas injection tube generally is not suitable for high pressure or needs the occasion of accurate pressure.For example, at present in the medical domain, often adopt conventional syringe that it is inflated during the capable narrow expansion of dilating sacculus, present syringe can not charge into gases at high pressure, and can not accurately control the gas pressure that charges in small range.Its inner core material of domestic syringe does not pass a test, and access times and life-span can't match in excellence or beauty with external product.And external product expense costliness, and after repeated multiple times used, plunger was easily crude, frictional resistance increases, and might wear out and fracture and scrap.
Summary of the invention
This utility model will solve the shortcoming of above-mentioned prior art, and a kind of controlled water filling gas injection tube of pressure that can accurately control injection pressure and replaceable inner core is provided.
This utility model solves the technical scheme that its technical problem adopts: the water filling gas injection tube that this pressure is controlled, comprise the water filling gas injection assembly of forming by piston, cylinder, piston is provided with the controlled propulsion plant of pressure, this propulsion plant comprises cylinder base, and cylinder base wall within it has a pair of teeth groove and a pair of guide chute that is furnished with pawl; Be provided with the bayonet lock seat in the cylinder base, this bayonet lock seat outer wall is provided with the bayonet lock seat guide rail that is positioned at guide chute, is provided with bayonet lock in the bayonet lock seat, and this bayonet lock is provided with from the opening part of bayonet lock seat and passes the grab that is complementary with teeth groove; The rear end of piston is connected with push rod, and this push rod point diameter is greater than putting back-end, and push rod front end outer wall is provided with the push rod guide rail that is positioned at the cylinder base guide chute, and putting back-end is through in the bayonet lock seat, and bayonet lock seat front end extends to the inside and is threaded with putting back-end; Also be provided with the adapter sleeve that is threaded with putting back-end in the bayonet lock seat, this adapter sleeve outside is arranged with pull bar, and the front end of this pull bar is butted on bayonet lock seat front end, and stretch out outside the cylinder base its rear end; The pull bar inwall has chute, and the adapter sleeve outer wall is provided with the draw runner that is positioned at this chute, and the pull bar front end is provided with the wedge portion that rear side can touch grab of stretching to.
This utility model can be further perfect by following manner:
Water filling gas injection assembly is a syringe, and the piston rear end of this syringe is connected in the push rod front end.The cylinder base Lower Half extends to form a groove forward, and syringe is located in this groove.Water filling gas injection assembly front end is provided with Pressure gauge.Back end of tie rod is connected with the handle that is used for rotating tension bar.Be equipped with spring between bayonet lock and pull bar front end, this spring one end is butted on the pull bar front end, and the other end is butted on bayonet lock.
The effect that this utility model is useful is: 1) be applicable to the field of high pressure or accurate pressure, applied range especially medically is being widely used; 2), replaceable injection inner core: adopt homemade disposable standard injector for medical purpose, can be fitted into the controlled water filling gas injection of pressure tube easily.After using repeatedly, after the frictional resistance increase or damaging, can unload easily from the controlled water filling gas injection of pressure tube.Because inner core is replaceable, promptly reduced requirement to material, manufacturing cost reduces greatly.3), easy to operate: the pull bar by establishing in the controlled water filling gas injection of the pressure tube, promote whole inner core, when reaching desired pressure, stop to promote, because the effect inner core of bayonet lock does not extract back after the meeting.When retreating inner core, the pulling pull bar, pull bar can make bayonet lock free automatically, and therefore, inner core can freely retreat, freely air-breathing or suction.4), pressure is accurately controlled: inject inner core to certain pressure, if want the pressure or the accurate pressure that reach higher, then rotatable handgrip by the screw thread on the push rod, promotes push rod, reaches ideal pressure.
Description of drawings
Fig. 1 is a perspective view of the present utility model;
Fig. 2 be among Fig. 1 A-A to cross-sectional view;
Fig. 3 is the part section structural representation of the inside core segment of B-B among Fig. 1;
Fig. 4 be among Fig. 2 C-C to cross-sectional view;
Fig. 5 be among Fig. 2 D-D to cross-sectional view;
Fig. 6 is the structural representation of this utility model syringe;
Fig. 7 is the main TV structure sketch map of this utility model push rod;
Fig. 8 is the left TV structure sketch map of this utility model push rod;
Fig. 9 is that the master of this utility model bayonet lock seat, bayonet lock looks cross-sectional view;
Figure 10 is the left TV structure sketch map of this utility model bayonet lock seat, bayonet lock;
Figure 11 is the sectional structure sketch map of this utility model pull bar;
Figure 12 is the sectional structure sketch map of this utility model adapter sleeve;
Figure 13 is that the master of this utility model cylinder base looks the sectional structure sketch map;
Figure 14 is the right TV structure sketch map of this utility model cylinder base.
Description of reference numerals: cylinder base 1, teeth groove 1-1, guide chute 1-2, tube groove 1-3, piston 2, cylinder 3, Pressure gauge 4, inflation inlet 5, pull bar 6, chute 6-1, the 6-2 of wedge portion, handle 7, push rod 8, push rod front end 8-1, putting back-end 8-2, push rod guide rail 8-3, adapter sleeve 9, draw runner 9-1, bayonet lock 10, grab 10-1, spring 11, bayonet lock seat 12, bayonet lock seat front end 12-1, opening 12-2, bayonet lock seat guide rail 12-3.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
The water filling gas injection tube that this pressure is controlled comprises the water filling gas injection assembly of being made up of piston 2, cylinder 3, and this water filling gas injection assembly is the syringe for medical purpose of a routine.Piston 2 is provided with the controlled propulsion plant of pressure, and this propulsion plant comprises cylinder base 1, and the inner core of being made up of pull bar 6, handle 7, push rod 8, adapter sleeve 9, bayonet lock 10, spring 11, bayonet lock seat 12.Cylinder base 1 Lower Half extends to form a groove 1-3 forward, and described syringe is located in this groove 1-3, and syringe can be taken out in this groove 1-3 easily.The inflation inlet 5 that syringe front end is provided with Pressure gauge 4 and is connected with the need inflatable objects.Cylinder base 1 wall within it has a pair of teeth groove 1-1 and a pair of guide chute 1-2 that is furnished with pawl; Be provided with bayonet lock seat 12 in the cylinder base 1, these bayonet lock seat 12 outer walls are provided with the bayonet lock seat guide rail 12-3 that is positioned at guide chute 1-2.Like this, bayonet lock seat 12 can only move axially in cylinder base 1, and can not radially rotate.Be provided with bayonet lock 10 in the bayonet lock seat 12, this bayonet lock 10 is provided with from the opening 12-2 of bayonet lock seat and passes the grab 10-1 that is complementary with teeth groove 1-1.Grab 10-1 cooperates with teeth groove 1-1's, is that the one-level one-level is progressive when inner core is advanced inward, and after stopping to advance, grab 10-1 is stuck on the agnail, and under the conventional state, whole inner core can be toward rollback.The rear end of piston 2 is connected with push rod 8, and push rod front end 8-1 has draw-in groove, and the rear end of piston 2 is stuck in this draw-in groove, and piston 2 can be moved axially with push rod 8, guarantees that again whole syringe can easily pull down.The piston cross-section of syringe is criss-cross, just can be stuck in this draw-in groove.Push rod front end 8-1 diameter is greater than putting back-end 8-2, and push rod front end 8-1 outer wall is provided with the push rod guide rail 8-3 that is positioned at cylinder base guide chute 1-2, like this, guarantees that push rod 8 can only move axially in cylinder base 1, and can not radially rotate.Putting back-end 8-2 is through in the bayonet lock seat 12, bayonet lock seat front end 12-1 extends to the inside and is threaded with putting back-end 8-2, like this, the counteracting force that pressure-air in the syringe forms at first is delivered to bayonet lock seat 12, and the bayonet lock seat is owing to there is the restriction of bayonet lock 10, can not move backward, guarantee continual pressure water injection gas injection.Also be provided with the adapter sleeve 9 that is threaded with putting back-end 8-2 in the bayonet lock seat 12, be arranged with pull bar 6 outside this adapter sleeve 9, the front end of this pull bar 6 is butted on bayonet lock seat front end 12-1, and stretch out outside the cylinder base 1 its rear end; Pull bar 6 inwalls have chute 6-1, and adapter sleeve 9 outer walls are provided with the draw runner 9-1 that is positioned at this chute 6-1.Pull bar 6 front ends are provided with toward rear side and extend the 6-2 of wedge portion that can touch grab 10-1.Pull bar 6 rear ends are connected with the handle 7 that is used for rotating tension bar 6.Pushing drawing rod 6 so inward, can promote whole inner core and walk inward.Bayonet lock 10 is made by deformable material (as plastics), spurs pull bar 6 backward, and at first the 6-2 of wedge portion touches grab 10-1, makes it toward internal strain, breaks away from the restriction of agnail.Continue pulling pull bar 6, can spur adapter sleeve 9,, therefore can spur push rod 8, thereby whole inner core freely can be pulled out, can arbitrarily be stopped at the desired position because adapter sleeve 9 is to be threaded with push rod 8.Rotating tension bar 6 drives adapter sleeve 9 and rotates, because the effect of screw thread can drive push rod 8 and move axially inward, therefore fine-tuning, fine motion push rod 8 is accurately controlled injection pressure.Be equipped with spring 11 between bayonet lock 10 and pull bar 6 front ends, these spring 11 1 ends are butted on pull bar 6 front ends, and the other end is butted on bayonet lock 10.Spring 11 can withstand pull bar 6 front ends, makes that pull bar 6 is unlikely easily to be deviate from, and touches grab 10-1.
During use, pull out earlier pull bar 6 backward, drive whole inner core and shrink back, thereby extract piston 2, suction phase is answered volumetrical gas or liquid, again inflation inlet 5 is connected to (as dilating sacculus) in the corresponding pipeline, pushing drawing rod 6 is injected corresponding volumetrical gas or liquid in corresponding pipeline, as is subjected to certain resistance, then rotating rod 6 is finely tuned, and can reach ideal pressure like a cork.
Claims (6)
1, the controlled water filling gas injection tube of a kind of pressure, comprise the water filling gas injection assembly of forming by piston (2), cylinder (3), it is characterized in that: described piston (2) is provided with the controlled propulsion plant of pressure, this propulsion plant comprises cylinder base (1), and cylinder base (1) wall within it has a pair of teeth groove (1-1) and a pair of guide chute (1-2) that is furnished with pawl; Be provided with bayonet lock seat (12) in the cylinder base (1), this bayonet lock seat (12) outer wall is provided with the bayonet lock seat guide rail (12-3) that is positioned at guide chute (1-2), be provided with bayonet lock (10) in the bayonet lock seat (12), this bayonet lock (10) is provided with from the opening (12-2) of bayonet lock seat and passes the grab (10-1) that is complementary with teeth groove (1-1); The rear end of piston (2) is connected with push rod (8), this push rod front end (8-1) diameter is greater than putting back-end (8-2), push rod front end (8-1) outer wall is provided with the push rod guide rail (8-3) that is positioned at cylinder base guide chute (1-2), putting back-end (8-2) is through in the bayonet lock seat (12), and bayonet lock seat front end (12-1) extends to the inside and is threaded with putting back-end (8-2); Also be provided with the adapter sleeve (9) that is threaded with putting back-end (8-2) in the bayonet lock seat (12), this adapter sleeve (9) outside is arranged with pull bar (6), and the front end of this pull bar (6) is butted on bayonet lock seat front end (12-1), and stretch out outside the cylinder base (1) its rear end; Pull bar (6) inwall has chute (6-1), and adapter sleeve (9) outer wall is provided with the draw runner (9-1) that is positioned at this chute (6-1); Pull bar (6) front end is provided with the wedge portion (6-2) that rear side can touch grab (10-1) of stretching to.
2, the controlled water filling gas injection tube of pressure according to claim 1, it is characterized in that: described water filling gas injection assembly is a syringe, the piston of this syringe (2) rear end is connected in push rod front end (8-1).
3, the controlled water filling gas injection tube of pressure according to claim 2, it is characterized in that: described cylinder base (1) Lower Half extends to form a groove (1-3) forward, and described syringe is located in this groove (1-3).
4, the controlled water filling gas injection tube of pressure according to claim 1 is characterized in that: described water filling gas injection assembly front end is provided with Pressure gauge (4).
5, the controlled water filling gas injection tube of pressure according to claim 1, it is characterized in that: described pull bar (6) rear end is connected with the handle (7) that is used for rotating tension bar (6).
6, the controlled water filling gas injection tube of pressure according to claim 1 is characterized in that: be equipped with spring (11) between described bayonet lock (10) and pull bar (6) front end, these spring (11) one ends are butted on pull bar (6) front end, and the other end is butted on bayonet lock (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520013350 CN2808183Y (en) | 2005-07-15 | 2005-07-15 | Pressure-controllable water and gas injection cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520013350 CN2808183Y (en) | 2005-07-15 | 2005-07-15 | Pressure-controllable water and gas injection cartridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2808183Y true CN2808183Y (en) | 2006-08-23 |
Family
ID=36924361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520013350 Expired - Fee Related CN2808183Y (en) | 2005-07-15 | 2005-07-15 | Pressure-controllable water and gas injection cartridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2808183Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104873365A (en) * | 2014-06-17 | 2015-09-02 | 中国人民解放军第二军医大学 | Planar scar dilation massager |
-
2005
- 2005-07-15 CN CN 200520013350 patent/CN2808183Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104873365A (en) * | 2014-06-17 | 2015-09-02 | 中国人民解放军第二军医大学 | Planar scar dilation massager |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |