CN102370527B - Adjustable continuous injector - Google Patents
Adjustable continuous injector Download PDFInfo
- Publication number
- CN102370527B CN102370527B CN201110247154.7A CN201110247154A CN102370527B CN 102370527 B CN102370527 B CN 102370527B CN 201110247154 A CN201110247154 A CN 201110247154A CN 102370527 B CN102370527 B CN 102370527B
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- CN
- China
- Prior art keywords
- core bar
- handle
- flexible handle
- rod
- adjusting screw
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- Expired - Fee Related
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- 238000002347 injection Methods 0.000 claims abstract description 40
- 239000007924 injection Substances 0.000 claims abstract description 40
- 238000012856 packing Methods 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000001802 infusion Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to an adjustable continuous injector. The injector comprises a sleeve, a piston, a core rod, a fixed handle, a movable handle and an adjusting screw rod, wherein the rear part of the sleeve is connected with the fixed handle; a screw hole is formed at the bottom of the fixed handle; the adjusting screw rod passes through the screw hole and is contacted with the lower lateral face of the movable handle; the adjusting screw rod pushes the movable handle to rotate with a pin roll, and the core rod is driven to displace, so that adjustment of injection amount is realized; a slotted hole is formed in the middle of the upper end of the movable handle along the axial direction of the core rod; the movable handle is sleeved on the core rod; a core rod catch, a gasket and a spring are sleeved on the core rod close to protruded cambered surfaces of the front and rear parts of the movable handle; and when the movable handle drives the core rod to move front and back, the movable handle can freely and slightly float up and down relative to the core rod, the core rod is prevented from generating friction, and axial movement of the core rod is not influenced. The adjustable continuous injector has the advantages of reasonable structure, accurate quantitation, convenience in adjustment, reliability in operation, good stability of injection quantity control and long service life.
Description
Technical field
The present invention relates to a kind of veterinary's medical apparatus and instruments, specifically a kind of adjustable continuous injector.
Background technology
We know, at present, on market, continuous injector for veterinary mainly comprises sleeve, piston, core bar, piston is arranged on core bar front end, driven and moved around in sleeve by core bar, be provided with an infusion channel communicating with sleeve cavity in core bar, barrel forward end is provided with needle holder.Mostly continuous injector injection mechanism is handle and connecting rod piston type pushing mechanism, hold fixed handle and can realize continuous injection, the joint that entering continuously medicine position when input medicinal liquid has connects a sebific duct, sebific duct other end connects a minute hand, minute hand inserts in original-pack medicinal liquid bottle, or use reservoir for subsequent use, the medicine of original-pack medicinal liquid bottle is poured in reservoir for subsequent use and is connected on continuous injector.Piston rear end is provided with by positioning cap and regulates an adjusting device forming, what graduated scale had is set directly on adjusting silk, when use, rotate along with regulating silk to rotate, observe inconvenience, quantitatively inaccurate, error is large, regulate silk and overcoat mutually to rub, in the course of time graduation mark wearing and tearing are unclear, cannot regulate injection volume, and ubiquity can only be adjusted roughly and cannot carry out trace adjusting on scale.The scale also having is located on sleeve, and sleeve can only adopt transparent plastic material to make, cracky, aging fast, error is large.The applicant's patent application 200920307901X has announced a kind of continuous injector, it connects an integral cast handle and flexible handle at sleeve rear portion, in integral cast handle, be provided with the back-moving spring being connected with flexible handle, flexible handle lower end is hinged by bearing pin and integral cast handle, upper end is connected and fixed by contiguous block and steady pin and core bar, the injection volume that integral cast handle lower end assembling one contacts with flexible handle regulates silk, regulates silk to realize the adjusting of injection volume by injection volume.Because flexible handle upper end is connected and fixed by contiguous block and steady pin and core bar, when long, hold continuously rapidly, can friction between flexible handle, contiguous block and core bar, produce gap, cause core bar to move unstable, injection volume control is inaccurate.
Summary of the invention
Technical problem to be solved by this invention is to overcome above-mentioned the deficiencies in the prior art, provides a kind of rational in infrastructure, quantitatively accurate, easy to adjust, and operation is reliable, and injection volume regulates, control stability is good, the adjustable continuous injector of long service life.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of adjustable continuous injector, it includes sleeve, piston, core bar, integral cast handle, flexible handle, adjusting screw(rod), piston is arranged on core bar front end, drive and move in sleeve by core bar, barrel forward end is provided with needle holder, rear portion is connected and fixed hands handle, integral cast handle bottom is hinged by bearing pin and flexible handle, flexible handle is connected with core bar rear portion, between integral cast handle and flexible handle, be provided with a back-moving spring, integral cast handle bottom is provided with a hole, adjusting screw(rod) contacts with flexible handle lower end side through silk hole, by rotating adjusting screw(rod), adjusting screw(rod) promotes flexible handle and rotates around bearing pin, drive core bar displacement, realize the adjusting of injection volume, it is characterized in that: in the middle of described flexible handle upper end, be axially arranged with a slotted eye along core bar, flexible handle is gapped to be enclosed within on core bar, flexible handle slotted eye front and rear both sides are respectively equipped with the cambered surface of protrusion, on core bar, be close to the anterior cambered surface cover that protrudes of flexible handle and have core bar catch, be close to flexible handle rear portion protrusion cambered surface cover and have packing ring, spring, spring rear end is fixed by nut.
The technical scheme that the present invention solves the problems of the technologies described above employing can also be: a kind of adjustable continuous injector, it includes sleeve, piston, core bar, integral cast handle, flexible handle, adjusting screw(rod), piston is arranged on core bar front end, drive and move in sleeve by core bar, barrel forward end is provided with needle holder, rear portion is connected and fixed hands handle, integral cast handle bottom is hinged by bearing pin and flexible handle, flexible handle is connected with core bar rear portion, between integral cast handle and flexible handle, be provided with a back-moving spring, integral cast handle bottom is provided with a hole, adjusting screw(rod) contacts with flexible handle lower end side through silk hole, by rotating adjusting screw(rod), adjusting screw(rod) promotes flexible handle and rotates around bearing pin, drive core bar displacement, realize the adjusting of injection volume, it is characterized in that: in the middle of described flexible handle upper end, be axially arranged with a slotted eye along core bar, flexible handle is gapped to be enclosed within on core bar, flexible handle slotted eye front part sides is provided with groove, steel ball is installed in groove, both sides, flexible handle slotted eye rear portion are provided with the cambered surface of protrusion, on core bar, be close to the anterior steel ball cover of installing of flexible handle and have core bar catch, be close to flexible handle rear portion protrusion cambered surface cover and have packing ring, spring, spring rear end is fixed by nut.
Core bar of the present invention is provided with injection volume scale.
On adjusting screw(rod) of the present invention, be also provided with the locking nut matching, locking nut is resisted against outside, integral cast handle silk hole.
Back-moving spring of the present invention is a torsion spring, and it is enclosed within on bearing pin, two ends stretch out turn round arm respectively with integral cast handle and flexible handle in side contacts.
Integral cast handle of the present invention lower end is provided with injection volume adjusting screw(rod), and core bar is provided with scale, only need rotate adjusting screw(rod) when use, can carry out injection volume coarse adjustment and fine setting, and quantitatively accurate, adjustment operation is simple, easy to use.Particularly flexible handle is gapped is enclosed within on core bar, and flexible handle slotted eye front and rear contacts with packing ring point with core bar catch respectively or line contact, and carries out small unsteady adjusting by spring.Against existing technologies, the present invention grips flexible handle and drives core bar when moving forward and backward, freely upper and lower small floating of the relative core bar of flexible handle rear portion, and can not produce friction to core bar, can not affect moving axially of core bar, injection volume precise control.The present invention is rational in infrastructure, quantitatively accurate, easy to adjust, and operation is reliable, and injection volume regulates, control stability is good, and long service life, is a kind of desirable adjustable continuous injector.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is structural representation of the present invention.
Fig. 2 is flexible handle and core bar connecting portion enlarged diagram in Fig. 1.
Fig. 3 is that the B-B of Fig. 2 is to schematic diagram.
Number in the figure is: 1. needle holder, 2. sealing gasket, 3. spring, 4. check valve, 5. sleeve, 6. adapter sleeve, 7. sealing ring, 8. piston, 9. core bar, 10. core bar catch, 11. steel balls, 12. packing rings, 13. springs, 14. nuts, 15. flexible handles, 16. back-moving springs, 17. bearing pins, 18. locking nuts, 19. adjusting screw(rod)s, 20. integral cast handles, 21. joints, 22. unidirectional inlet valves, 23. attaching nuts.
Detailed description of the invention
As can be seen from Figure 1, a kind of adjustable continuous injector, it includes sleeve 5, piston 8, core bar 9, integral cast handle 20, flexible handle 15, adjusting screw(rod) 19 etc.Piston 8 is arranged on core bar 9 front ends, is driven in sleeve 5 and is moved by core bar 9, and sleeve 5 front ends are provided with needle holder 1, between needle holder 1 and sleeve 5 cavitys, sealing gasket 2, spring 3, check valve 4 is installed.On sleeve 5 cavitys, also connect a joint 21 by attaching nut 23, unidirectional inlet valve 22 and spring 3 are housed in joint 21, be used for connecting infusion tube or infusion bottle.Above-mentioned composition structure and prior art are basic identical, no longer describe in detail.
Sleeve of the present invention 5 rear portions are connected and fixed handgrip 20 by adapter sleeve 6 and sealing ring 7.Piston 8 and sealing ring 7 fitted seal.Integral cast handle 20 bottoms are hinged by bearing pin 17 and flexible handle 15, flexible handle 15 is connected with core bar 9 rear portions, between integral cast handle 20 and flexible handle 15, be provided with a back-moving spring 16, integral cast handle 20 is held formula entirety handgrip with flexible handle 15 compositions, repeatedly grip continuously integral cast handle 20 and flexible handle 15, flexible handle 15 can drive core bar 9 to move back and forth, and realizes injection continuously.
Integral cast handle of the present invention 20 bottoms are provided with a hole, adjusting screw(rod) 19 contacts with flexible handle 15 lower end side through silk hole, by rotating adjusting screw(rod) 19, adjusting screw(rod) 19 promotes flexible handle 15 and rotates around bearing pin 17, and flexible handle 15 is taking bearing pin 17 as fulcrum, under the effect of lever principle, drive core bar 9 displacements, regulate the relative position of core bar 9, regulate, the range of activity of control piston 8 in continuous injector sleeve 5, and then realize the adjusting of injection volume.As a same reason, adjusting screw(rod) also can be arranged on flexible handle, regulates the position of the relative integral cast handle of flexible handle, carries out the adjusting of injection volume.
From Fig. 1, Fig. 2, it can also be seen that, flexible handle of the present invention is axially arranged with a slotted eye along core bar 9 in the middle of 15 upper ends, and flexible handle 15 is gapped to be enclosed within on core bar 9, and flexible handle 15 does not contact with core bar 9.Flexible handle 15 slotted eye front and rear both sides are respectively equipped with the cambered surface of protrusion, on core bar 9, be close to the anterior cambered surface cover that protrudes of flexible handle 15 and have core bar catch 10, be close to flexible handle rear portion protrusion cambered surface cover and have packing ring 12, spring 13, spring 13 rear ends are provided with nut 14, and nut 14 is connected and fixed with core bar 9.Core bar catch 10 can be tightly fixed and be enclosed within on core bar 9, packing ring 12 is movable to be enclosed within on core bar 9, and like this, flexible handle 15 slotted eye front and rears protrude cambered surface and contact with packing ring 12 lines with core bar catch 10 respectively, spring 13 touches packing ring 12, jointly plays buffering and flexible adjustment effect.Gripping flexible handle 15, when flexible handle 15 drives core bar 9 to move back and forth continuous injection, there is upper and lower small floating in the relative core bar 9 of slotted eye that flexible handle 15 is provided with by upper end, and can not produce friction and occur gap core bar, can not affect moving axially of core bar, core bar 9 accurate positionings, reliable, injection volume precise control.
From Fig. 1, Fig. 2, Fig. 3, it can also be seen that, flexible handle of the present invention is axially arranged with a slotted eye along core bar in the middle of 15 upper ends, flexible handle 15 is gapped to be enclosed within on core bar 9, flexible handle 15 slotted eye front part sides are provided with groove, steel ball 11 is installed in groove, both sides, flexible handle slotted eye rear portion are provided with the cambered surface of protrusion, on core bar, be close to the anterior steel ball cover of installing of flexible handle and have core bar catch 10, being close to flexible handle rear portion protrusion cambered surface cover has packing ring 12, spring 13, and spring 13 rear ends are fixing with core bar 9 by nut 14.Core bar catch 10 can be tightly fixed and be enclosed within on core bar 9, packing ring 12 is movable to be enclosed within on core bar 9, like this, the steel ball 11 of flexible handle 15 slotted eye front portions contacts with 10 of core bar catch, rear portion is protruded cambered surface and is contacted with packing ring 12 lines, spring 13 touches packing ring 12, jointly plays buffering and flexible adjustment effect.Gripping flexible handle 15, when flexible handle 15 drives core bar 9 to move back and forth continuous injection, there is upper and lower small floating in the relative core bar 9 of slotted eye that flexible handle 15 is provided with by upper end, and can not produce friction and occur gap core bar, can not affect moving axially of core bar, core bar 9 accurate positionings, reliable, injection volume precise control.
On core bar 9 of the present invention, with injection volume scale, be used for marking corresponding injection volume.
On adjusting screw(rod) 19 of the present invention, be also provided with the locking nut 18 matching, locking nut 18 is resisted against outside, 20 holes of integral cast handle, and injection volume adjusting screw(rod) 19 is used for being locked.
Back-moving spring 16 of the present invention is a torsion spring, and it is enclosed within on bearing pin 17, two ends stretch out turn round arm respectively with integral cast handle 20 and the interior side contacts of flexible handle 15.Integral cast handle 20 relatively, the flexible handle 15 of holding with a firm grip, back-moving spring 16 resets flexible handle 15.
Integral cast handle of the present invention lower end is provided with injection volume adjusting screw(rod), core bar is provided with scale, when use, only need rotate adjusting screw(rod), observe scale label corresponding on core bar 9, determine injection volume number, rotation lock nut 18 locks injection volume adjusting screw(rod) 19, can carry out injection volume coarse adjustment and fine setting, quantitatively accurately, adjustment operation is simple, easy to use.When injection, integral cast handle relatively, the flexible handle of holding with a firm grip, the core bar that its drive is located at flexible handle upper end moves, and realizes injection, looses one's grip, and back-moving spring 16 resets flexible handle, then the flexible handle of holding with a firm grip carries out injection next time.Reciprocal with this, realize injection continuously.Particularly flexible handle is gapped is enclosed within on core bar, and flexible handle slotted eye front and rear contacts with packing ring point with core bar catch respectively or line contact, and carries out small unsteady adjusting by spring.The present invention grips flexible handle and drives core bar when moving forward and backward, freely upper and lower small floating of the relative core bar of flexible handle rear portion, and can not produce friction to core bar, can not affect moving axially of core bar, injection volume precise control.The present invention is rational in infrastructure, quantitatively accurate, easy to adjust, and operation is reliable, and injection volume regulates, control stability is good, and long service life, is a kind of desirable adjustable continuous injector.
Claims (7)
1. an adjustable continuous injector, it includes sleeve, piston, core bar, integral cast handle, flexible handle, adjusting screw(rod), piston is arranged on core bar front end, drive and move in sleeve by core bar, barrel forward end is provided with needle holder, rear portion is connected and fixed hands handle, integral cast handle bottom is hinged by bearing pin and flexible handle, flexible handle is connected with core bar rear portion, between integral cast handle and flexible handle, be provided with a back-moving spring, integral cast handle bottom is provided with a hole, adjusting screw(rod) contacts with flexible handle lower end side through silk hole, by rotating adjusting screw(rod), adjusting screw(rod) promotes flexible handle and rotates around bearing pin, drive core bar displacement, realize the adjusting of injection volume, it is characterized in that: in the middle of described flexible handle upper end, be axially arranged with a slotted eye along core bar, flexible handle is gapped to be enclosed within on core bar, on flexible handle, slotted eye front and rear is respectively equipped with protrusion cambered surface, on core bar, be close to the anterior cambered surface cover that protrudes of flexible handle and have core bar catch, be close to flexible handle rear portion protrusion cambered surface cover and have packing ring, spring, spring rear end is fixed by nut.
2. an adjustable continuous injector, it includes sleeve, piston, core bar, integral cast handle, flexible handle, adjusting screw(rod), piston is arranged on core bar front end, drive and move in sleeve by core bar, barrel forward end is provided with needle holder, rear portion is connected and fixed hands handle, integral cast handle bottom is hinged by bearing pin and flexible handle, flexible handle is connected with core bar rear portion, between integral cast handle and flexible handle, be provided with a back-moving spring, integral cast handle bottom is provided with a hole, adjusting screw(rod) contacts with flexible handle lower end side through silk hole, by rotating adjusting screw(rod), adjusting screw(rod) promotes flexible handle and rotates around bearing pin, drive core bar displacement, realize the adjusting of injection volume, it is characterized in that: in the middle of described flexible handle upper end, be axially arranged with a slotted eye along core bar, flexible handle is gapped to be enclosed within on core bar, on flexible handle, the anterior left and right sides of slotted eye is provided with groove, steel ball is installed in groove, on flexible handle, slotted eye rear portion is provided with protrusion cambered surface, on core bar, be close to the anterior steel ball cover of installing of flexible handle and have core bar catch, be close to flexible handle rear portion protrusion cambered surface cover and have packing ring, spring, spring rear end is fixed by nut.
3. adjustable continuous injector according to claim 1 and 2, is characterized in that: described core bar catch is tightly fixed and is enclosed within on core bar.
4. adjustable continuous injector according to claim 1 and 2, is characterized in that: described packing ring is actively set on core bar.
5. adjustable continuous injector according to claim 1 and 2, is characterized in that: described core bar is provided with injection volume scale.
6. adjustable continuous injector according to claim 1 and 2, is characterized in that: on described adjusting screw(rod), be also provided with the locking nut matching, locking nut is resisted against outside, integral cast handle silk hole.
7. adjustable continuous injector according to claim 1 and 2, is characterized in that: described back-moving spring is a torsion spring, and it is enclosed within on bearing pin, two ends stretch out turn round arm respectively with integral cast handle and flexible handle in side contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110247154.7A CN102370527B (en) | 2011-08-26 | 2011-08-26 | Adjustable continuous injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110247154.7A CN102370527B (en) | 2011-08-26 | 2011-08-26 | Adjustable continuous injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102370527A CN102370527A (en) | 2012-03-14 |
| CN102370527B true CN102370527B (en) | 2014-07-02 |
Family
ID=45790122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110247154.7A Expired - Fee Related CN102370527B (en) | 2011-08-26 | 2011-08-26 | Adjustable continuous injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102370527B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107088248B (en) * | 2017-04-10 | 2022-11-29 | 上海普益医疗器械股份有限公司 | Double-valve connecting rod handle pulse thrombolytic catheter back injection syringe |
| CN107397606B (en) * | 2017-08-28 | 2019-01-22 | 信阳农林学院 | A kind of veterinary syringe |
| CN109528347B (en) * | 2018-12-14 | 2024-09-10 | 采纳科技股份有限公司 | Electric or pneumatic continuous injector |
| CN109717930B (en) * | 2019-02-25 | 2024-01-26 | 上海节惠生物科技有限公司 | Disposable gun type circumcision stitching instrument |
| CN110368134B (en) * | 2019-08-12 | 2024-05-14 | 绍兴万佳器械有限公司 | Totally-enclosed multifunctional continuous injection medicine filling device |
| CN110690407B (en) * | 2019-11-14 | 2022-05-17 | 江苏英能新能源科技有限公司 | Electrolyte injector for lithium battery processing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3384081A (en) * | 1962-06-25 | 1968-05-21 | Kenneth Castiglione Ltd | Handgrip syringe for continuous injections |
| CN1251049A (en) * | 1997-03-29 | 2000-04-19 | 朴志勲 | Continuous injecting apparatus |
| CN201469817U (en) * | 2009-08-13 | 2010-05-19 | 王喜增 | Continuous injector |
| CN202211764U (en) * | 2011-08-26 | 2012-05-09 | 王喜增 | Adjustable continuous injector |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0251906A (en) * | 1988-08-13 | 1990-02-21 | Murata Mfg Co Ltd | Chip type piezoelectric resonator and its manufacture |
| JP2526003B2 (en) * | 1992-11-06 | 1996-08-21 | 株式会社微生物化学研究所 | Continuous vaccination method for vaccination for animals |
| JPH0951906A (en) * | 1995-08-17 | 1997-02-25 | Fujihira Kogyo Kk | Continuous syringe for domestic animal |
-
2011
- 2011-08-26 CN CN201110247154.7A patent/CN102370527B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3384081A (en) * | 1962-06-25 | 1968-05-21 | Kenneth Castiglione Ltd | Handgrip syringe for continuous injections |
| CN1251049A (en) * | 1997-03-29 | 2000-04-19 | 朴志勲 | Continuous injecting apparatus |
| CN201469817U (en) * | 2009-08-13 | 2010-05-19 | 王喜增 | Continuous injector |
| CN202211764U (en) * | 2011-08-26 | 2012-05-09 | 王喜增 | Adjustable continuous injector |
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| Publication number | Publication date |
|---|---|
| CN102370527A (en) | 2012-03-14 |
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Granted publication date: 20140702 |