CN2606811Y - Plunger type high precision micro injection pump - Google Patents
Plunger type high precision micro injection pump Download PDFInfo
- Publication number
- CN2606811Y CN2606811Y CN 03240316 CN03240316U CN2606811Y CN 2606811 Y CN2606811 Y CN 2606811Y CN 03240316 CN03240316 CN 03240316 CN 03240316 U CN03240316 U CN 03240316U CN 2606811 Y CN2606811 Y CN 2606811Y
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- CN
- China
- Prior art keywords
- pump
- pump housing
- valve
- main body
- spool
- 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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Abstract
The utility model relates to a plunger type high precision micro injection pump, comprising a pump head and a pump body. The pump body comprises a front pump body which is connected with the pump head and provided with seal and a back pump body with a piston moving inside, wherein, at the end of the back pump body, a spiral micrometer used to control injection volume is arranged on the end cover; the position on the outer wall of the back pump body relative to a piston cavity is provided with an intake regulating valve and an exhaust regulating valve which are respectively communicated with the front end or back end of the piston cavity; the pump head is connected with the front pump body of the pump body. The pump adopts pneumatic power to control the piston, which is simple and reliable in structure, convenient for regulation, easy to realize and low in manufacturing cost. Water sealing is adopted in sealing link, which is simple, reliable, convenient for observation, easy to adapt to different injection volume changes, and a series can be formed only by a little modification.
Description
Technical field
The utility model relates to a kind of novel plunger-type high precision micro syringe pump.The pump and the pump that is used on the High-Speed Automatic line that have Korrosionsmedium in particular for injection.
Background technique
Plunger type high precision micro syringe pump applicable situation is a lot, but common practices is: take micro motor and reducing gear and a cover back and forth to drive the mechanism of plunger motion; Sealing part adopts nonmetallic material seal element single or combination; Gateway ball seat one-way valve; Regulate injection volume and change reciprocating stroke usually, plunger stroke is changed.This way is complex structure, bigger than normal, the adjusting injection volume inconvenience of size often; On sealing part, leak the often precision of influence injection easily.
The model utility content
The purpose of this utility model provide a kind of simple in structure, precision is high, corrosion-resistant, frequency of okperation is high, be convenient to regulate the plunger type high precision micro syringe pump of adding amount.
Plunger type high precision micro syringe pump described in the utility model comprises pump head, the pump housing.The described pump housing comprises the back pump housing that the preceding pump housing with sealing and piston move within it, end at the back pump housing, its end cap is provided with the screw micrometer that is used to control injection volume, back pump housing outer wall is provided with air inlet adjustment valve and the exhaust regulating valve that communicates with piston cavity front end or rear end respectively with respect to the position of piston cavity, and described pump head is connected with the preceding pump housing of the pump housing.
In the described preceding pump housing, by three sliders in left, center, right plunger is installed, the piston that is arranged in the pump housing of back is connected with plunger by link, and the described preceding pump housing is provided with water tumbler with respect to the slider position, and the center tube of water tumbler communicates with the hole of intermediate isolating body.
The side of described end cap has screw, is provided with fastening screw trip bolt in it.
Described pump head is a topping-up pump, comprise main body, be installed in the seal ring between medium inlet valve, media outlet valve and inlet/outlet valve and the main body on the main body, described main body have through hole that medium inlet valve and media outlet valve are installed, with the shoulder hole and four through holes that are connected with the pump housing of vertical that communicate, the left spacer of placement of this through hole, described medium inlet valve and media outlet valve are one-way valve, comprise that valve body, cross section are spool, pressure spring and the spool of triangle star and the seal ring between the valve body.
Described pump head is to annotate the cream pump, comprise main body, be installed in valve pocket and spool, the medium inlet that is connected with main body and media outlet pipe and seal ring in the main body, described main body have hole that valve pocket is installed, with vertical hole that holds left slider that communicates, this hole and the through hole that is connected with the pump housing, the material of described valve pocket and spool is a pottery magnetic, spool can rotate in valve pocket, make spool in valve pocket, have two positions, one is that delivery side of pump is communicated with medium inlet, and another position is that delivery side of pump is communicated with the media outlet pipe.
The pump housing is provided with viewing window.
The good effect of plunger type high precision micro syringe pump described in the utility model is:
Syringe pump described in the utility model can both be suitable for the medium of liquid or high shape, only needs to change pump head and gets final product; Adopt the pneumatic control piston, simple and reliable, be convenient to regulate; Simple in structure, realize low cost of manufacture easily; Sealing part is simple with water-stop, is convenient to observe; Only need to revise a little to form series, adapt to the variation of different injection volumes.
Below in conjunction with accompanying drawing and instantiation the utility model is described in further detail.
Description of drawings
Fig. 1 is a plunger type high precision micro syringe pump plan view described in the utility model;
Fig. 2 is a plunger type high precision micro syringe pump plan view described in the utility model;
Fig. 3 is another embodiment's a plan view;
Fig. 4 is the sectional view of fluid-delivery valve;
Fig. 5 is the cross-sectional view of topping-up pump spool.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, plunger type high precision micro syringe pump described in the utility model comprises pump head 1, the pump housing 9.The described pump housing 9 comprises the back pump housing B that preceding pump housing A with sealing and piston move within it, end at back pump housing B, its end cap 8 is provided with the screw micrometer 7 that is used to control injection volume, and back pump housing outer wall is provided with air inlet adjustment valve 5 and the exhaust regulating valve 15 that communicates with piston cavity front end or rear end respectively with respect to the position of piston cavity.Described pump head 1 is connected with the preceding pump housing A of the pump housing 9, and its Placement can adopt bolt, screw or other mode for convenience detach commonly used.
In the pump housing, by three sliders in left, center, right 13,12 and 10 plunger 11 is installed before described, the piston that is arranged in the pump housing B of back is connected with plunger 11 by link 17.The preceding pump housing is provided with water tumbler 3 with respect to the position of slider 13,12 and 10, and the center tube of water tumbler communicates with the hole of intermediate isolating body 12.
The side of described end cap 8 has screw, is provided with fastening screw trip bolt 16 in it, when screw micrometer 7 stretch into the position regulation of piston cavity good after, use this screw.
Described pump head 1 is conveniently replaced according to the medium difference of injection, is liquid as medium, and available topping-up pump is a paste as medium, available notes cream pump.
Referring to Fig. 4 and Fig. 5, described topping-up pump comprises the seal ring of installing between main body 21, medium inlet valve 2, media outlet valve 14 and inlet/outlet valve and the main body 21 31.Described main body 21 have through hole that medium inlet valve 2 and media outlet valve 14 are installed, with the shoulder hole (see figure 1) and four through holes 25 that are connected with the pump housing 9 of vertical that communicate, the left spacer 13 of placement of this through hole.Described medium inlet valve 2 and media outlet valve 14 are one-way valve, comprise valve body 22, cross section be triangle star spool 24, be sleeved on pressure spring 23 on the spool and the seal ring 32 between valve body and the spool.
Referring to Fig. 3, described notes cream pump comprises main body 26, is installed in valve pocket 27 and spool 28, medium inlet 29 and media outlet pipe 30 in the main body 26.Described main body 26 have hole that valve pocket is installed, with the vertical shoulder hole that holds slider that communicates in this hole and four through hole (not shown) that are connected with the pump housing 9.The material of described valve pocket and spool is a pottery magnetic, and spool can rotate in valve pocket, makes it have two positions, and one is that delivery side of pump is communicated with medium inlet 29, and another position is that delivery side of pump is communicated with media outlet pipe 30.
For ease of observing, the pump housing 9 is provided with viewing window 4, can watch its working condition.
The power of syringe pump described in the utility model is pressurized air, enters the anterior a of piston by air inlet adjustment valve 5.Piston is b motion backward under pressure, and piston contacts stop motion with the measuring rod end of screw micrometer.Piston is connected with plunger 11 by link 17, and plunger is by left and right sides slider sealing 13,11, and the middle slider between the slider of the left and right sides communicates with the center outlet pipe of water tumbler, forms water-stop.Piston drives plunger b motion backward, at this moment, form negative pressure in the pump head cavity, with the topping-up pump is example, external pressure is greater than the spring force of medium import one-way valve 2, then liquid medium is inhaled within the pump head, seal so the spool that exports one-way valve 14 this moment is crushed on the seal ring outlet, has finished the stroke of suction liquid.Exhaust regulating valve 15 controlled systems open, piston forward, and promptly a is to motion, and plunger is also pushed ahead, and the medium in the pump head 1 is compressed, the spool pressure spring of media outlet one-way valve 14, valve open is finished function of injection.The distance that the screw micrometer regulating piston moves backward, thus the distance of annotating the plug motion also changes thereupon, has reached the purpose that changes inspiration or discharge medium volume.
Claims (10)
1. plunger type high precision micro syringe pump, comprise pump head (1), the pump housing (9), it is characterized in that the described pump housing (9) comprises the back pump housing (B) that the preceding pump housing (A) with sealing and piston move within it, end at the back pump housing (B), its end cap (8) is provided with the screw micrometer (7) that is used to control injection volume, back pump housing outer wall is provided with air inlet adjustment valve (5) and the exhaust regulating valve (15) that communicates with piston cavity front end or rear end respectively with respect to the position of piston cavity, and described pump head (1) is connected with the preceding pump housing (A) of the pump housing (9).
2. syringe pump according to claim 1, it is characterized in that in the described preceding pump housing, by three sliders in left, center, right (13,12 and 10) plunger (11) is installed, the piston that is arranged in the back pump housing (B) is connected with plunger (11) by link (17), the pump housing is provided with water tumbler (3) with respect to the position of slider (13,12 and 10) before described, and the center tube of water tumbler communicates with the hole of intermediate isolating body (12).
3. syringe pump according to claim 1 and 2 is characterized in that the side of described end cap (8) has screw, is provided with fastening screw trip bolt (16) in it.
4. syringe pump according to claim 3 is characterized in that described pump head (1) is topping-up pump or notes cream pump.
5. syringe pump according to claim 4, it is characterized in that described topping-up pump comprises main body (21), be installed in medium inlet valve (2) and the media outlet valve (14) on the main body and advance, outlet valve (2,14) and the seal ring (31) between the main body (21), described main body (21) has the through hole that medium inlet valve (2) and media outlet valve (14) are installed, communicate with this through hole is vertical, place the hole and four through holes that are connected with the pump housing 9 (25) of left spacer (13), described medium inlet valve (2) and media outlet valve (14) are one-way valve, comprise valve body (22), cross section is the spool (24) of triangle star, be sleeved on pressure spring (23) on the spool (24) and the seal ring (32) between spool (24) and the valve body (22).
6. syringe pump according to claim 4, it is characterized in that described notes cream pump comprises main body (26), be installed in valve pocket (27) and spool (28) in the main body (26), medium inlet (29) that is connected with main body (26) and media outlet pipe (30) and seal ring (33), described main body (26) has the hole that valve pocket is installed, with the vertical hole that holds left slider (13) that communicates, this hole and four through holes that are connected with the pump housing (9), the material of described valve pocket and spool is a pottery magnetic, its spool can rotate in valve pocket, make spool in valve pocket, have two positions, one is that delivery side of pump is communicated with medium inlet (29), and another position is that delivery side of pump is communicated with media outlet pipe (30).
7. syringe pump according to claim 1 and 2 is characterized in that the pump housing (9) is provided with viewing window (4).
8. syringe pump according to claim 3 is characterized in that the pump housing (9) is provided with viewing window (4).
9. syringe pump according to claim 4 is characterized in that the pump housing (9) is provided with viewing window (4).
10. according to claim 5 or 6 described syringe pumps, it is characterized in that the pump housing (9) is provided with viewing window (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03240316 CN2606811Y (en) | 2003-03-10 | 2003-03-10 | Plunger type high precision micro injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03240316 CN2606811Y (en) | 2003-03-10 | 2003-03-10 | Plunger type high precision micro injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2606811Y true CN2606811Y (en) | 2004-03-17 |
Family
ID=34168005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03240316 Expired - Fee Related CN2606811Y (en) | 2003-03-10 | 2003-03-10 | Plunger type high precision micro injection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2606811Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103805505A (en) * | 2014-01-24 | 2014-05-21 | 杭州电子科技大学 | Device and method for detecting pulsating pressure of tissue engineering myocardial cell |
| CN110410315A (en) * | 2019-08-15 | 2019-11-05 | 深圳市众迈科技有限公司 | A kind of efficient topping-up pump |
-
2003
- 2003-03-10 CN CN 03240316 patent/CN2606811Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103805505A (en) * | 2014-01-24 | 2014-05-21 | 杭州电子科技大学 | Device and method for detecting pulsating pressure of tissue engineering myocardial cell |
| CN103805505B (en) * | 2014-01-24 | 2015-07-29 | 杭州电子科技大学 | Organizational project myocardial cell is beaten and is pressed proofing unit and method |
| CN110410315A (en) * | 2019-08-15 | 2019-11-05 | 深圳市众迈科技有限公司 | A kind of efficient topping-up pump |
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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 |