CN201884236U - Piston type metering pump - Google Patents
Piston type metering pump Download PDFInfo
- Publication number
- CN201884236U CN201884236U CN2010205184884U CN201020518488U CN201884236U CN 201884236 U CN201884236 U CN 201884236U CN 2010205184884 U CN2010205184884 U CN 2010205184884U CN 201020518488 U CN201020518488 U CN 201020518488U CN 201884236 U CN201884236 U CN 201884236U
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- CN
- China
- Prior art keywords
- piston
- ceramic cylinder
- pump head
- type metering
- cylinder jacket
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- Expired - Fee Related
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Abstract
The utility model discloses a piston type metering pump, which is provided with a piston pump head, a connector, and a transmission part, wherein a liquid intake valve and a liquid outtake valve are arranged on the piston pump head, the piston pump head is connected with the connector, a piston is arranged inside the piston pump head, the piston is movably connected with the piston pump head through a ceramic cylinder liner, the ceramic cylinder liner is tubular, and the inner surface of the ceramic cylinder liner is smooth. By adding the ceramic cylinder liner, the piston type metering pump provide a wear-resistant contact surface with the smooth surface for the piston, and meanwhile the ceramic cylinder liner is also connected with the piston pump head in a sealing way, so that piston type metering pump has the advantages that the piston components are wear resistant, and air tightness performance is good. The piston type metering pump thoroughly solves the problems of short service life, low working efficiency, high cost of maintenance and the like in the prior art, and achieves the purposes of firm sealing and long service life.
Description
Technical field
The utility model relates to a kind of piston type metering pump.
Background technique
The characteristics that piston type metering pump has is simple in structure, delivery pressure is high, measuring accuracy is high are specially adapted to the medium of transfer of highly viscous.The piston mechanism of piston type metering pump mainly is made up of piston and part of cylinder block, because the piston reciprocating type movement process must be based upon on the basis of relative movement, this just makes piston mechanism not possess very strong sealing, so piston type metering pump is not suitable for the medium of carrying ultrahigh pressure.Simultaneously, the sealing of the piston mechanism of piston type metering pump also is subjected to the influence of operating time.Piston is installed in the piston pump head of piston type metering pump, reason owing to existing processing technique level, the surface that piston is installed in the piston pump head is smooth inadequately, can increase this surperficial degree of roughness after the long-term to-and-fro motion of piston, and then cause strong wearing and tearing, the space that wearing and tearing produce has further reduced the sealing of piston mechanism, therefore, the piston type metering pump of prior art uses the back easily to have the shortcoming of leaking, and the utmost point is not suitable for the long-term environment that uses at high pressure and ultrahigh pressure.
In sum, piston type metering pump of the prior art exists that critical piece is easy to wear, poor sealing performance, shortcoming that reliability is low, thereby causes problems such as weak point in its, inefficiency, maintenance cost height in working life.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of piston type metering pump of wear-resistant, good seal performance.
For solving the problems of the technologies described above, the utility model adopts following technological scheme: this piston type metering pump is provided with piston pump head and connecting body, described piston pump head is provided with feed liquor valve and liquid valve, described piston pump head is connected with connecting body, described piston pump head inside is provided with piston, described piston flexibly connects by ceramic cylinder jacket and piston pump head, described ceramic cylinder jacket in a tubular form, described ceramic cylinder jacket internal surface is smooth, described piston pump head inside is provided with the shoulder hole that is used to install ceramic cylinder jacket, one end of described ceramic cylinder jacket is pressed on the piston pump head, the described ceramic cylinder jacket the other end is connected with connecting body, is tightly connected by wear ring and Glais ring between described piston and the ceramic cylinder jacket.Provide smooth enough surface of contact by ceramic cylinder jacket for piston, the ceramic cylinder jacket production and processing is convenient, so such design can effectively solve wear problems, and can significantly improve the sealing between piston and the piston pump head.
As of the present utility model preferred, be provided with sealing gasket between described ceramic cylinder jacket and the spacing preiection, described ceramic cylinder jacket and connecting body are provided with sealing gasket.Guaranteed the sealability of piston type metering pump like this.
The utility model adopts technique scheme: piston type metering pump adopts and installs ceramic cylinder jacket additional, for providing, piston has wear-resistant, ganoid surface of contact, simultaneously, ceramic cylinder jacket is tightly connected with the piston pump head again, and piston type metering pump has had that piston element is wear-resistant, the advantage of good seal performance thus.Thoroughly solved problems such as the weak point in working life that exists in the prior art, inefficiency, maintenance cost height, reached and seal purpose tight, long service life.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described in detail.
Fig. 1 is the structural representation of a kind of piston type metering pump of the utility model;
Fig. 2 is the partial enlarged drawing at Figure 1A place.
Embodiment
As shown in Figure 1, 2, piston type metering pump has comprised motor 1, housing 2, driving mechanism, piston pump head 4.Driving mechanism is installed in the housing 2, and motor 1 is installed in housing 2 outsides, and motor 1 is connected with driving mechanism.Be connected by connecting body 11 between housing 2 and the piston pump head 4, driving mechanism is provided with piston 3, and this piston 3 is positioned at piston pump head 4 inside.Piston pump head 4 is provided with feed liquor valve 5 and liquid valve 6, and piston pump head 4 inside are provided with cavity between feed liquor valve 5 and liquid valve 6.
Piston pump head 4 is connected on the connecting body 11 by screw, and piston 3 flexibly connects by ceramic cylinder jacket 7 and piston pump head 4, and the circular end surface of piston 3 is positioned at cavity.This ceramic cylinder jacket 7 in a tubular form, it is bright and clean that the internal surface smooth degree reaches minute surface, its surface roughness is more than the Ra0.04.Piston pump head 4 inside are provided with shoulder hole, and ceramic cylinder jacket 7 is installed in the shoulder hole, and this end that piston pump head 4 apertures are less and an end of ceramic cylinder jacket 7 are connected.Offer two grooves in piston 3 outsides, in the groove near feed liquor valve 5 and liquid valve 6 wear ring 9 is installed, Glais ring 10 is installed in another groove, piston 3 is tightly connected with ceramic cylinder jacket 7 by wear ring 9, Glais ring 10 like this.After piston pump head 4 was installed on the connecting body 11, ceramic cylinder jacket 7 tightly was fitted on the connecting body 11 by sealing gasket 8, and ceramic cylinder jacket 7 is clamped between piston pump head 4 and the connecting body 11 thus, and was tightly connected with both.
During work, motor 1 rotates and drives the driving mechanism motion, and piston 3 is moved reciprocatingly.It slides with respect to ceramic cylinder jacket 7 during piston 3 motions; because wear ring 9 is between Glais ring 10 and the medium; so just can be with from the side of the particulate blockage in the medium at wear ring 9; avoided particle to contact with Glais ring 10; prevent that particle from scratching Glais ring 10; help to prolong the working life of Glais ring 10 like this, improve the reliability of piston-type measurement pump work.Ceramic cylinder jacket 7 internal surfaces are smooth, the technology that middle compared to existing technology piston pump head 4 is connected with piston 3 by Metallic cylinder, this ceramic cylinder jacket 7 helps to reduce piston 3 and the wearing and tearing of the parts that contact with piston 3, simultaneously can also improve sealability, this piston type metering pump be had seal advantage tight, long service life.
Claims (2)
1. piston type metering pump, this piston type metering pump is provided with piston pump head (4) and connecting body (11), described piston pump head (4) is provided with feed liquor valve (5) and liquid valve (6), described piston pump head (4) is connected with connecting body (11), described piston pump head (4) inside is provided with piston (3), it is characterized in that: described piston (3) flexibly connects by ceramic cylinder jacket (7) and piston pump head (4), described ceramic cylinder jacket (7) in a tubular form, described ceramic cylinder jacket (7) internal surface is smooth, described piston pump head (4) inside is provided with the shoulder hole that is used to install ceramic cylinder jacket (7), one end of described ceramic cylinder jacket (7) is pressed on the piston pump head (4), described ceramic cylinder jacket (7) the other end is connected with connecting body (11), is tightly connected by wear ring (9) and Glais ring (10) between described piston (3) and the ceramic cylinder jacket (7).
2. according to the described piston type metering pump of claim 1, it is characterized in that: be provided with sealing gasket (8) between described ceramic cylinder jacket (7) and the spacing preiection (7), described ceramic cylinder jacket (7) is provided with sealing gasket (8) with connecting body (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205184884U CN201884236U (en) | 2010-09-06 | 2010-09-06 | Piston type metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205184884U CN201884236U (en) | 2010-09-06 | 2010-09-06 | Piston type metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884236U true CN201884236U (en) | 2011-06-29 |
Family
ID=44181775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205184884U Expired - Fee Related CN201884236U (en) | 2010-09-06 | 2010-09-06 | Piston type metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201884236U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174619A (en) * | 2013-04-02 | 2013-06-26 | 合肥日上电器有限公司 | Reciprocating injection type metering pump |
| CN106762509A (en) * | 2017-02-07 | 2017-05-31 | 筱净（上海）生物科技有限公司 | Liquid pump and liquid jettison system |
| CN115106020A (en) * | 2021-03-17 | 2022-09-27 | 固瑞克明尼苏达有限公司 | System for dispensing abrasive material |
| CN117108473A (en) * | 2023-09-27 | 2023-11-24 | 苏州迪泰奇自动化科技有限公司 | Wear-resistant ceramic horizontal metering pump |
-
2010
- 2010-09-06 CN CN2010205184884U patent/CN201884236U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174619A (en) * | 2013-04-02 | 2013-06-26 | 合肥日上电器有限公司 | Reciprocating injection type metering pump |
| CN106762509A (en) * | 2017-02-07 | 2017-05-31 | 筱净（上海）生物科技有限公司 | Liquid pump and liquid jettison system |
| CN106762509B (en) * | 2017-02-07 | 2019-01-01 | 筱净（上海）生物科技有限公司 | Liquid pump and liquid jettison system |
| CN115106020A (en) * | 2021-03-17 | 2022-09-27 | 固瑞克明尼苏达有限公司 | System for dispensing abrasive material |
| US11971022B2 (en) | 2021-03-17 | 2024-04-30 | Graco Minnesota Inc. | System for dispensing abrasive material |
| CN117108473A (en) * | 2023-09-27 | 2023-11-24 | 苏州迪泰奇自动化科技有限公司 | Wear-resistant ceramic horizontal metering pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20130906 |