CN106567829A - Adjustable-lift one-way valve used for micro reciprocating pump - Google Patents
Adjustable-lift one-way valve used for micro reciprocating pump Download PDFInfo
- Publication number
- CN106567829A CN106567829A CN201611033812.1A CN201611033812A CN106567829A CN 106567829 A CN106567829 A CN 106567829A CN 201611033812 A CN201611033812 A CN 201611033812A CN 106567829 A CN106567829 A CN 106567829A
- Authority
- CN
- China
- Prior art keywords
- valve
- lift
- adjusting lever
- reciprocating pump
- ball
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
- F16K15/044—Check valves with guided rigid valve members shaped as balls spring-loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses an adjustable-lift one-way valve used for a micro reciprocating pump, and relates to the field of micro reciprocating displacement pumps. The adjustable-lift one-way valve comprises a one-way valve assembly and a lift adjustment assembly. The one-way valve assembly comprises a valve element. The lift adjustment assembly is used for controlling the lift of the valve element. Scales used for quantitatively controlling the lift of the valve element are arranged on the lift adjustment assembly. According to the adjustable-lift one-way valve used for the micro reciprocating pump, the use method is simple, the lift of the one-way valve can be adjusted quantitatively and precisely through rotational adjustment of a nut and matching of the scales on a pressure lever and a reference line on a valve body, the lift of a valve ball of the one-way valve is precisely matched with the quantity of flow of the micro reciprocating pump, and accordingly, high-precision conveying of the micro reciprocating pump is achieved.
Description
Technical field
The present invention relates to micro reciprocating displacement pump field, and in particular to a kind of micro reciprocating pump is unidirectional with adjustable lift
Valve.
Background technology
Check valve is the direct component parts of the reciprocating pump course of work, be affect micro reciprocating pump delivery precision it is important because
Element, and the unidirectional lift of a valve is one of its important parameter.The design discharge of the parameters such as the lift of check valve, sphere diameter and micro reciprocating pump
There is direct relation, when reciprocal pump discharge is big, the lift and sphere diameter respective design parameter of check valve is bigger, and vice versa.
The reciprocating displacement pumps such as the fields such as chemical industry, medicine and chromatography, Micro-metering Pumps used, liquid phase pump, its demand volume according to
The pH value of unclassified stores, concentration and liquid phase are isoparametric different and different, therefore, micro reciprocating pump used by which is removed and meets specified stream
Amount is outer, also needs to meet the function of Flow-rate adjustment, to meet the demand of technique different flow.Common micro reciprocating pump was designed at which
Cheng Zhong, its check valve parameter all with metered flow as reference, during its use, when demand volume is less, as which is fixed
Relatively large lift, cause the delayed impact for bringing of Ball of Non-return backhaul, do not allowed to neglect with respect to its less flow
Depending on having a strong impact on the delivery precision of micro reciprocating pump.
The content of the invention
According to problems of the prior art, it is contemplated that micro reciprocating pump low discharge delivery precision is improved, according to
The difference of micro reciprocal pump discharge, adjusts Ball of Non-return lift, realizes micro reciprocating pump low discharge high accuracy course of conveying.
In order to solve the above problems, the present invention is employed the following technical solutions：
A kind of micro reciprocating pump adjusts component with adjustable lift check valve, including check valve assembly and lift, described unidirectional
Valve module includes valve element, and the lift adjustment component is used to control valve element lift, and lift adjustment component is provided with for quantitative
The scale of control valve element lift.
Preferably, the valve element is valve ball, and the check valve assembly is also including valve seat, valve body and valve pocket；The valve seat sets
It is placed on valve body；The valve pocket is arranged on valve seat, and is connected with valve seat；The valve ball be placed in valve seat and valve pocket it
Between.
Preferably, the lift adjustment component includes adjusting nut, adjusting lever I, depression bar and spring, the adjusting nut set
It is located at outside depression bar, moves up and down for controlling depression bar, in adjusting lever I, the adjusting lever I is used to control the depression bar lower reaction
Valve ball lift processed, the spring supporting make adjusting lever I not occur to depart from depression bar between adjusting lever I and valve pocket.
It is further preferred that being carved with reference line on the valve body；The depression bar is provided with the scale being engaged with reference line.
It is further preferred that being provided with sealing ring between the depression bar and valve body.
It is further preferred that being threaded connection between the depression bar and valve body.
It is further preferred that the depression bar lower end opens up fluted, I top of the adjusting lever is provided with boss, the boss
In groove, the spring supporting is between boss and valve pocket.
Preferably, the valve element is valve ball, and also including valve seat and valve body, the valve seat is arranged at valve to the check valve assembly
On body, the valve ball is placed on valve seat；The lift adjustment component includes adjusting lever II, and the top of adjusting lever II is arranged on valve
The outside of body, with the lift of control valve ball in the bottom insertion valve body of adjusting lever II；The adjusting lever II's stretches out in valve
It is provided with the shaft of external body and is easy to rotate adjusting lever II to adjust the projection of stroke；It is provided with the adjusting lever II for being situated between
The through hole that mass flow is crossed；Sealing ring is provided between the adjusting lever II and valve body.
Preferably, the valve pocket of tubular is additionally provided with the check valve assembly；The valve pocket is arranged on valve seat, and and valve
Seat is connected；The valve ball is placed between valve seat and valve pocket；The bottom of the adjusting lever II is provided with shaft-like pressure ball portion,
The bottom in the pressure ball portion is arranged on the top of valve ball to limit the lift of valve ball.
Preferably, reference line is carved with the valve body；The adjusting lever II is provided with the scale being engaged with reference line.
The beneficial effects of the present invention is：
1), when the present invention is applied to micro reciprocating pump adjustment Flow-rate adjustment, Ball of Non-return lift is made with micro reciprocating pump stream
Amount precision-matched, realizes that micro reciprocating pump high accuracy is conveyed, is particularly applied to the equipment such as Micro-metering Pumps and liquid phase pump.
2) present invention utilizes existing micro reciprocating pump structure, and only its one-way valve structures is improved, applied widely, greatly
Width improves the precision of micro reciprocating pump and covers range of flow.
3) it is of the invention compared with common micro reciprocating pump, even if when low discharge is exported, can still keep higher precision,
Suitable for fields such as the medicine higher to required precision, liquid chromatograph and fine chemistry industries.
4) using method of the present invention is simple, only need to rotate adjusting nut, make the reading formed with reference line by scale with
It is identical with principle, you can realization accurately adjusts unidirectional lift of a valve work.
5) support spring is provided between the adjusting lever I and valve pocket in the present invention, can make tune during lift is adjusted
Whole bar I does not occur to depart from depression bar.
6) sealing ring is provided between depression bar of the invention and valve body, do not leak outside for sealing conveying material.
Description of the drawings
Fig. 1 is generalized section of the present invention.
Fig. 2,3 are external structure schematic diagram of the invention.
Fig. 4 is the structural representation of another kind embodiment of the invention.
The implication of reference is as follows：
I 13- depression bar 14- springs of 10- scale 11- adjusting nut 12- adjusting levers
15- sealing ring 16- boss 17- adjusting lever II 18- projection 19- pressure balls portion
20- valve ball 21- valve seat 22- valve body 23- valve pocket 24- reference lines.
Specific embodiment
With reference to embodiments, the technical scheme in the present invention is clearly and completely described.Based in the present invention
Embodiment, the every other embodiment obtained under the premise of creative work is not made by those of ordinary skill in the art, all
Belong to the scope of protection of the invention.
Embodiment 1
By shown in Fig. 1-3, a kind of micro reciprocating pump is with adjustable lift check valve, including check valve assembly and lift adjustment group
Part, the check valve assembly include valve element, and the lift adjustment component is used to control to set in valve element lift, and lift adjustment component
There is the scale 10 for quantity control valve core lift.
The valve element is valve ball 20, and the check valve assembly is also including valve seat 21, valve body 22 and valve pocket 23；The valve seat 21
It is arranged on valve body 22；The valve pocket 23 is arranged on valve seat 21, and is connected with valve seat 21；The valve ball 20 is placed in valve
Between seat 21 and valve pocket 23.
The lift adjustment component includes adjusting nut 11, adjusting lever I 12, depression bar 13 and spring 14, the adjusting nut
11 are set in outside depression bar 13, move up and down for controlling depression bar 13, and 13 lower reaction of the depression bar is in adjusting lever I 12, described
Adjusting lever I 12 is used to control 20 lift of valve ball；13 lower end of the depression bar opens up fluted, and I 12 top of the adjusting lever is provided with convex
Platform 16, the boss 16 are arranged in the groove, and the spring 14 is supported between boss 16 and valve pocket 23, makes adjusting lever I
12 do not occur to depart from depression bar 13.
Reference line 24 is carved with the valve body 22；The depression bar 13 is provided with the scale 10 being engaged with reference line 24.Under
Concrete effect in the face of reference line 24 is described in detail：Such as, as shown in figure 3, causing reference line 24 when depression bar 13 is rotated
When pointing to numeral " 30 " represented on scale 10, then check valve flow now produced by the lift of valve ball 20 is represented for digital
Normal flow corresponding to " 30 "；The numeral on scale 10 that the sensing of reference line 24 is caused when depression bar 13 is rotated further occurs to become
During change, because of the lift variation of valve ball 20 also there is relative change in corresponding check valve flow.Then so as to setting due to scale 10
Put, can allow the operator to the lift of valve ball 20 is accurately adjusted and controlled.
Sealing ring 15 is provided between the depression bar 13 and valve body 22.
It is threaded connection between the depression bar 13 and valve body 22, drives depression bar 13 to rotate by rotating adjusting nut 11,
Moved up and down along valve body with controlling depression bar 13.
Embodiment 2
As in Figure 2-4, the valve element is valve ball 20, and the check valve assembly also includes valve seat 21 and valve body 22, described
Valve seat 21 is arranged on valve body 22, and the valve ball 20 is placed on valve seat 21；The lift adjustment component includes adjusting lever II17,
The top of adjusting lever II17 is arranged on the outside of valve body 22, and the bottom of adjusting lever II17 is inserted in the valve body 22 to control valve ball
20 lift；The stretching out of the adjusting lever II17 is provided with the shaft outside valve body 22 is easy to rotate adjusting lever II17 to adjust
The projection 18 of section stroke；The through hole flow through for medium is provided with the adjusting lever II17；The adjusting lever II17 and valve body 22
Between be provided with sealing ring 15.
That is, spring is eliminated in the present embodiment, and will be the adjusting nut 11 in embodiment 1, adjusting lever I 12, depression bar 13 whole
An entirety is combined into, by the 18 turn adjusting lever II17 of projection of nut type, you can adjusting lever II17 is directly controlled along valve body
22 directions for limiting move up and down, and then realize the regulation to 20 lift of valve ball.
As shown in figure 3, the valve pocket 23 of tubular is additionally provided with the check valve assembly；The valve pocket 23 is arranged at valve seat 21
On, and be connected with valve seat 21；The valve ball 20 is placed between valve seat 21 and valve pocket 23；The bottom of the adjusting lever II17
Shaft-like pressure ball portion 19 is provided with, the bottom in the pressure ball portion 19 is arranged on the top of valve ball 22 to limit the lift of valve ball.
Reference line 24 is carved with the valve body 22；The adjusting lever II17 is provided with the scale being engaged with reference line 24
10。
A kind of using method of micro reciprocating pump with adjustable lift check valve：Will be including check valve assembly and lift adjustment group
The check valve of part is arranged on micro reciprocating pump pump head, by test, simulation and calculating, summarizes the precision and list of micro reciprocating pump
Relation between valve valve ball lift, formed by realize micro reciprocating pump high accuracy convey for the purpose of micro reciprocal pump discharge with
The matched rule of Ball of Non-return lift, this matched rule are micro reciprocal pump discharge, 10 three of reference line 24 and scale
Between corresponding relation.During check valve use, when the feed flow of micro reciprocating pump deviates metered flow, to match
To instruct, rotation adjusting nut 11 or raised 18 drives depression bar 13 or adjusting lever II17 to rotate to control one-way valve to principle
The lift of ball, until scale 10 reaches new flow according to matching principle with the reading formed by reference line 24, that is, realizes micro
Reciprocating pump low discharge high accuracy course of conveying.
Claims (10)
1. a kind of micro reciprocating pump is with adjustable lift check valve, it is characterised in that：Including check valve assembly and lift adjustment component,
The check valve assembly includes valve element, and the lift adjustment component is used to control valve element lift, and lift adjustment component is provided with
Scale (10) for quantity control valve core lift.
2. a kind of micro reciprocating pump according to claim 1 is with adjustable lift check valve, it is characterised in that：The valve element is
Valve ball (20), the check valve assembly also include valve seat (21), valve body (22) and valve pocket (23)；The valve seat (21) is arranged at valve
On body (22)；The valve pocket (23) of tubular is arranged on valve seat (21), and is connected with valve seat (21)；The valve ball (20)
It is placed between valve seat (21) and valve pocket (23).
3. a kind of micro reciprocating pump according to claim 2 is with adjustable lift check valve, it is characterised in that：The lift is adjusted
Whole group part includes adjusting nut (11), adjusting lever I (12), depression bar (13) and spring (14), and the adjusting nut (11) is set in
Depression bar (13) is outside, moves up and down for controlling depression bar (13), and depression bar (13) lower reaction is in adjusting lever I (12), described
For controlling valve ball (20) lift, the spring (14) is supported between adjusting lever I (12) and valve pocket (23) adjusting lever I (12),
Adjusting lever I (12) is made not occur to depart from depression bar (13).
4. a kind of micro reciprocating pump according to claim 3 is with adjustable lift check valve, it is characterised in that：The valve body
(22) reference line (24) is carved with；The depression bar (13) is provided with the scale (10) being engaged with reference line (24).
5. a kind of micro reciprocating pump according to claim 3 is with adjustable lift check valve, it is characterised in that：The depression bar
(13) sealing ring (15) is provided with and valve body (22) between.
6. a kind of micro reciprocating pump according to claim 3 is with adjustable lift check valve, it is characterised in that：The depression bar
(13) it is threaded connection and valve body (22) between.
7. a kind of micro reciprocating pump according to claim 3 is with adjustable lift check valve, it is characterised in that：The depression bar
(13) lower end opens up fluted, and I (12) top of the adjusting lever is provided with boss (16), and the boss (16) is installed in the groove
Interior, the spring (14) is supported between boss (16) and valve pocket (23)；It is provided with what is flow through for medium on the boss (16)
Through hole.
8. a kind of micro reciprocating pump according to claim 1 is with adjustable lift check valve, it is characterised in that：The valve element is
Valve ball (20), the check valve assembly also include valve seat (21) and valve body (22), and the valve seat (21) is arranged on valve body (22),
The valve ball (20) is placed on valve seat (21)；The lift adjustment component includes adjusting lever II (17), adjusting lever II's (17)
Top is arranged on the outside of valve body (22), with control valve ball (20) in the bottom insertion valve body (22) of adjusting lever II (17)
Lift；The stretching out of the adjusting lever II (17) be provided with the outside shaft of valve body (22) be easy to rotate adjusting lever II (17) with
Adjust the projection (18) of stroke；The through hole flow through for medium is provided with the adjusting lever II (17)；The adjusting lever II (17)
Sealing ring (15) is provided between valve body (22).
9. a kind of micro reciprocating pump according to claim 8 is with adjustable lift check valve, it is characterised in that：The check valve
The valve pocket (23) of tubular is additionally provided with component；The valve pocket (23) is arranged on valve seat (21), and coordinates company with valve seat (21)
Connect；The valve ball (20) is placed between valve seat (21) and valve pocket (23)；The bottom of the adjusting lever II (17) is provided with shaft-like
Pressure ball portion (19), the bottom of the pressure ball portion (19) is arranged on the top of valve ball (22) to limit the lift of valve ball.
10. a kind of micro reciprocating pump according to claim 8 is with adjustable lift check valve, it is characterised in that：The valve body
(22) reference line (24) is carved with；The adjusting lever II (17) is provided with the scale (10) being engaged with reference line (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611033812.1A CN106567829B (en) | 2016-11-15 | 2016-11-15 | A kind of adjustable lift check valve of micro reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611033812.1A CN106567829B (en) | 2016-11-15 | 2016-11-15 | A kind of adjustable lift check valve of micro reciprocating pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106567829A true CN106567829A (en) | 2017-04-19 |
| CN106567829B CN106567829B (en) | 2019-01-25 |
Family
ID=58542948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611033812.1A Active CN106567829B (en) | 2016-11-15 | 2016-11-15 | A kind of adjustable lift check valve of micro reciprocating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106567829B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2158460Y (en) * | 1993-05-27 | 1994-03-09 | 上海市液压气动技术研究所 | Mini single direction locking valve |
| CN101099060A (en) * | 2004-03-17 | 2008-01-02 | Hydac过滤技术有限公司 | Non-return valve |
| US20100024767A1 (en) * | 2008-07-31 | 2010-02-04 | Vincent Meneely | Self-contained compression brakecontrol module for compression-release brakesystem of internal combustion engine |
| CN201487235U (en) * | 2009-08-17 | 2010-05-26 | 费斯托(中国)有限公司 | Throttling valve |
| CN203614828U (en) * | 2013-10-23 | 2014-05-28 | 宁波明启液压机械有限公司 | One-way throttling cutoff valve |
| CN104454070A (en) * | 2014-10-27 | 2015-03-25 | 中北大学 | Electric-control hydraulic adjustment mechanism based on camshaft and allowing valve lift to be changed continuously |
| CN204878887U (en) * | 2015-07-10 | 2015-12-16 | 南京绍尔机械设备有限公司 | Horizontal check valve |
| CN105179760A (en) * | 2015-08-14 | 2015-12-23 | 苏州科明纺织有限公司 | One-way throttling valve |
| CN205226508U (en) * | 2015-12-07 | 2016-05-11 | 天津市索伦环保科技发展有限公司 | Relief valve |
| CN105909832A (en) * | 2016-06-28 | 2016-08-31 | 新昌县五羊机械厂 | Check valve |
-
2016
- 2016-11-15 CN CN201611033812.1A patent/CN106567829B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2158460Y (en) * | 1993-05-27 | 1994-03-09 | 上海市液压气动技术研究所 | Mini single direction locking valve |
| CN101099060A (en) * | 2004-03-17 | 2008-01-02 | Hydac过滤技术有限公司 | Non-return valve |
| US20100024767A1 (en) * | 2008-07-31 | 2010-02-04 | Vincent Meneely | Self-contained compression brakecontrol module for compression-release brakesystem of internal combustion engine |
| CN201487235U (en) * | 2009-08-17 | 2010-05-26 | 费斯托(中国)有限公司 | Throttling valve |
| CN203614828U (en) * | 2013-10-23 | 2014-05-28 | 宁波明启液压机械有限公司 | One-way throttling cutoff valve |
| CN104454070A (en) * | 2014-10-27 | 2015-03-25 | 中北大学 | Electric-control hydraulic adjustment mechanism based on camshaft and allowing valve lift to be changed continuously |
| CN204878887U (en) * | 2015-07-10 | 2015-12-16 | 南京绍尔机械设备有限公司 | Horizontal check valve |
| CN105179760A (en) * | 2015-08-14 | 2015-12-23 | 苏州科明纺织有限公司 | One-way throttling valve |
| CN205226508U (en) * | 2015-12-07 | 2016-05-11 | 天津市索伦环保科技发展有限公司 | Relief valve |
| CN105909832A (en) * | 2016-06-28 | 2016-08-31 | 新昌县五羊机械厂 | Check valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106567829B (en) | 2019-01-25 |
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| CB02 | Change of applicant information |
Address after: 230031 No. 888 Changjiang West Road, Shushan District, Hefei, Anhui. Applicant after: Hefei General Machinery Research Institute Co., Ltd. Address before: 230031 No. 888 Changjiang West Road, Shushan District, Hefei, Anhui. Applicant before: Hefei Universal Machinery Inst. |
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