CN203770714U - Valve head of sampling valve - Google Patents
Valve head of sampling valve Download PDFInfo
- Publication number
- CN203770714U CN203770714U CN201420156681.6U CN201420156681U CN203770714U CN 203770714 U CN203770714 U CN 203770714U CN 201420156681 U CN201420156681 U CN 201420156681U CN 203770714 U CN203770714 U CN 203770714U
- Authority
- CN
- China
- Prior art keywords
- bearing
- diaphragm
- turning axle
- valve
- valve head
- 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 - Lifetime
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 230000001105 regulatory effect Effects 0.000 claims abstract description 15
- 230000007704 transition Effects 0.000 claims abstract description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 20
- 238000005096 rolling process Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 abstract description 8
- 239000012528 membrane Substances 0.000 abstract 6
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010030 laminating Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Rolling Contact Bearings (AREA)
- Lift Valve (AREA)
Abstract
The utility model discloses a valve head of a sampling valve. The valve head comprises a bonnet, a base, a bearing, a rotating shaft, a membrane, a component force steel ball and a pressure regulation portion. The bonnet is fixedly connected to the base; the rotating shaft is arranged on the inner side of the bearing and is in transition fit connection with the inner ring of the bearing; the bearing is arranged on the inner side of the base with the outer diameter being in clearance fit with the base; the pressure regulation portion is arranged in the inner hole of the rotating shaft; the pressure regulation portion is connected with the lower end face of the membrane through the component force steel ball, and the upper end of the membrane is connected with the bonnet; the pressure regulation portion comprises a push bar, a regulating screw, a spring and a spring housing. By the arrangement, force is transmitted to the membrane through the component force steel ball, so that pressure of the membrane and the bonnet can be regulated to a proper numerical value, the membrane can be ensured to be in close fit with the bonnet, and service life of the valve head can be prolonged; the valve head can be widely applied to industrial fluid distribution and is particularly suitable for fluid distribution of medical instruments and experimental analysis instruments.
Description
Technical field
The utility model relates to sampling valve, particularly, relates to a kind of valve head of sampling valve.
Background technique
The valve head of sampling valve is the device that a kind of You Yi road input fluid is assigned to input fluid by rotatablely moving each delivery outlet, concrete mechanical structure is: an one rotating shaft, the top of turning axle is provided with diaphragm, diaphragm is fixedly connected with turning axle, turning axle has two different external diameters to form, and on the cylindrical of one section of minor diameter, plane bearing is installed, and the top of plane bearing is provided with butterfly spring, large diameter end face is withstood on the top of butterfly spring, forms turning axle assembly.Closely fit by elastic device in the upper-end surface of the lower end surface of valve gap and a diaphragm, the central upper portion of valve gap is provided with a fluid input interface, be provided with several output interfaces in surrounding, on valve gap, the end opening of input interface and output interface has path and valve gap lower end surface to link up.The upper-end surface of diaphragm is provided with a recessed elongated slot that arrives diaphragm geometrical center, and the fluid entering from valve gap input interface arrives the plane of bonnet lower through path, enters into the groove of diaphragm.Rotation diaphragm makes recessed elongated slot aim at the delivery outlet of valve gap lower end surface, exports from output interface through path.One for installing back the pedestal of rotating shaft, the bottom of this pedestal is provided with an endoporus matching with plane bearing, has a hole that can allow turning axle hypomere pass through.The upper end of pedestal is provided with the screw that connects valve gap.Pack turning axle assembly into pedestal, valve in head bolt of cover setting has just completed the head portion of sampling valve.Pressure between diaphragm and valve gap is by position dimension and allowance control.
Can find out from the structure of the valve head of existing sampling valve: because the rotary track of turning axle is only subject to some constraint of plane bearing, when turning axle running, will cause and rock, affect the laminating of diaphragm upper plane and bonnet lower plane, cause poor sealing.Rocking of turning axle causes the center of diaphragm not aim at the center of valve gap, affects the precision of calibration, causes the decay of flow.
Model utility content
For defect of the prior art, the purpose of this utility model is to provide a kind of valve head of sampling valve, wherein spring housing, by component steel ball by power stepless action diaphragm, just fits tightly diaphragm energy automatic floating with valve gap lower plane, realizes the valve head of the adjustable sampling valve of laminating and pressure.
According to an aspect of the present utility model, the valve head of the sampling valve providing, comprises valve gap, pedestal, bearing, turning axle, diaphragm, component steel ball and pressure regulating part;
Wherein,
Described pressure regulating part connects the lower end surface of described diaphragm by described component steel ball, the upper-end surface of described diaphragm connects described valve gap;
Described valve gap connects firmly described pedestal; Described turning axle is arranged on the inner side of described bearing and is connected with the inner ring transition fit of described bearing; Described bearing is arranged on the inner side of described pedestal and the external diameter of described bearing and described pedestal interference fit; Described pressure regulating part is arranged in the endoporus of described turning axle; Described turning axle comprises the first connected shaft part and the second shaft part, and the diameter of described the first shaft part is greater than the diameter of described the second shaft part.
Preferably, described pressure regulating part comprises push rod, adjusting screw, spring and spring housing; One end of described adjusting screw is connected with the inner hole thread of described turning axle, and the end face of the other end is connected with described spring by described push rod; Described spring is arranged on the inner side of described spring housing, and described spring is compressive state between described spring housing and described push rod; The external diameter of described spring housing and the inner hole wall of described turning axle are connected; The exterior edge face of described spring housing connects the lower end surface of described diaphragm by described component steel ball.
Preferably, described bearing comprises sliding bearing and rolling bearing; Described the first shaft part is connected with the inner ring transition fit of described sliding bearing, and described the second shaft part is connected with the inner ring transition fit of described rolling bearing, makes turning axle be subject to 2 constraints.
Preferably, also comprise pusher dog, described pusher dog is arranged on the inner side, end of the first shaft part and is connected with described diaphragm.
Preferably, also comprise fastening screw trip bolt, described valve gap connects described pedestal by described fastening screw trip bolt.
Preferably, the lower end surface of described diaphragm and described valve gap is plane and is fitted and connected.
Preferably, push rod, adjusting screw, spring, spring housing, diaphragm, component steel ball and described turning axle are on same axis.
Compared with prior art, the utlity model has following beneficial effect:
1, the utility model, by component steel ball, is delivered to diaphragm by power, can ensure the close laminating of diaphragm and valve gap;
2, the utility model, by pressure regulating part, can easily be adjusted to suitable numerical value the pressure of diaphragm and valve gap, improves the working life of valve head, reduces part accuracy of manufacturing, and then reduced fabricating cost under the prerequisite that ensures finished product accuracy;
3, in the utility model, turning axle adopts two slew constrained structure innovations, ensures that it becomes one and stable has enough rigid rotators, has better ensured precision;
4, innovative design of the present utility model, can be widely used in industrial fluids and distribute, and the fluid that is particularly suitable for medical equipment, experimental analysis instrument distributes.
Brief description of the drawings
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present utility model will become:
Fig. 1 is structure cross-sectional schematic of the present utility model.
In figure:
1 is turning axle;
2 is adjusting screw;
3 is push rod;
4 is spring;
5 is spring housing;
6 is component steel ball;
7 is pusher dog;
8 is fastening screw trip bolt;
9 is valve gap;
10 is diaphragm;
11 is sliding bearing;
12 is rolling bearing;
13 is pedestal.
Embodiment
Below in conjunction with specific embodiment, the utility model is elaborated.Following examples will contribute to those skilled in the art further to understand the utility model, but not limit in any form the utility model.It should be pointed out that to those skilled in the art, without departing from the concept of the premise utility, can also make some distortion and improvement.These all belong to protection domain of the present utility model.
In the present embodiment, as shown in Figure 1, the valve head of the sampling valve that the utility model provides, comprises valve gap 9, pedestal 13, bearing, turning axle 1, diaphragm 10 and pressure regulating part; Wherein, described valve gap 9 connects firmly described pedestal 13; Described turning axle 1 is arranged on the inner side of described bearing and is connected with the inner ring transition fit of described bearing; Described bearing is arranged on the inner side of described pedestal 13 and the external diameter of described bearing and described pedestal 13 interference fit; Described pressure regulating part is arranged in the endoporus of described turning axle 1; Described turning axle 1 comprises the first connected shaft part and the second shaft part, and the diameter of described the first shaft part is greater than the diameter of described the second shaft part.The valve head of the sampling valve that the utility model provides also comprises component steel ball 6, and the exterior edge face of described spring housing 5 connects the lower end surface of described diaphragm 10 by described component steel ball 6.The upper-end surface of described diaphragm 10 connects described valve gap 9.Described pressure regulating part connects described valve gap 9 by described diaphragm 10.Described pressure regulating part comprises push rod 3, adjusting screw 2, spring 4 and spring housing 5; One end of described adjusting screw 2 is threaded with described turning axle 1, and the end face of the other end connects described spring 4 by described push rod 3; Described spring 4 is arranged on the inner side of described spring housing 5, and described spring 4 is compressive state between described spring housing 5 and described push rod 3; The inner hole wall of the external diameter of described spring housing 5 and described turning axle 1 is connected; The exterior edge face of described spring housing 5 connects the lower end surface of described diaphragm 10 by described component steel ball 6.
Described bearing comprises sliding bearing 11 and rolling bearing 12; Described the first shaft part is connected with the inner ring transition fit of described sliding bearing 11; Described the second shaft part is connected with the inner ring transition fit of described rolling bearing 12, has 2 slew constrained turning axlees 1 thereby turning axle 1 is one.The valve head of the sampling valve that the utility model provides also comprises pusher dog 7, and described pusher dog 7 arranges the inner side, end of the first shaft part and is connected with described diaphragm 10.Pusher dog 7 moves for stirring diaphragm 10.The valve head of the sampling valve that the utility model provides also comprises fastening screw trip bolt 8, and described valve gap 9 connects described pedestal 13 by described fastening screw trip bolt 8.Described diaphragm 10 is plane with the lower end surface of described valve gap 9 and is fitted and connected.Push rod 3, adjusting screw 2, spring 4, spring housing 5, diaphragm 10, component steel ball 6 and described turning axle 1 are on same axis.
Rotation adjusting screw 2 is delivered to diaphragm 10 by spring 4, push rod 3, spring housing 5, component steel ball 6 by power successively, the suitable pressure that diaphragm 10 and the pressure of valve gap 9 are adjusted.The effect of component steel ball 6 is to make the plane automatic floating of diaphragm 10 just to fit with valve gap 9.Because turning axle 1 adopts 2 constraints, ensure that it becomes one and stable has enough rigid rotators, such rigid rotator provides a solid foundation for encoder is installed, and ensures the precision of its calibration.
Above specific embodiment of the utility model is described.It will be appreciated that, the utility model is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present utility model.
Claims (7)
1. a valve head for sampling valve, is characterized in that, comprises valve gap, pedestal, bearing, turning axle, diaphragm, component steel ball and pressure regulating part;
Wherein,
Described pressure regulating part connects the lower end surface of described diaphragm by described component steel ball, the upper-end surface of described diaphragm connects described valve gap;
Described valve gap connects firmly described pedestal; Described turning axle is arranged on the inner side of described bearing and is connected with the inner ring transition fit of described bearing; Described bearing is arranged on the inner side of described pedestal and the external diameter of described bearing and described pedestal interference fit; Described pressure regulating part is arranged in the endoporus of described turning axle; Described turning axle comprises the first connected shaft part and the second shaft part, and the diameter of described the first shaft part is greater than the diameter of described the second shaft part.
2. the valve head of sampling valve according to claim 1, is characterized in that, described pressure regulating part comprises push rod, adjusting screw, spring and spring housing; One end of described adjusting screw is connected with the inner hole thread of described turning axle, and the end face of the other end is connected with described spring by described push rod; Described spring is arranged on the inner side of described spring housing, and described spring is compressive state between described spring housing and described push rod; The external diameter of described spring housing and the inner hole wall of described turning axle are connected; The exterior edge face of described spring housing connects the lower end surface of described diaphragm by described component steel ball.
3. the valve head of sampling valve according to claim 1, is characterized in that, described bearing comprises sliding bearing and rolling bearing; Described the first shaft part is connected with the inner ring transition fit of described sliding bearing, and described the second shaft part is connected with the inner ring transition fit of described rolling bearing, makes turning axle be subject to 2 constraints.
4. the valve head of sampling valve according to claim 1 and 2, is characterized in that, also comprises pusher dog, and described pusher dog is arranged on the inner side, end of the first shaft part and is connected with described diaphragm.
5. the valve head of sampling valve according to claim 1 and 2, is characterized in that, also comprises fastening screw trip bolt, and described valve gap connects described pedestal by described fastening screw trip bolt.
6. the valve head of sampling valve according to claim 1, is characterized in that, the lower end surface of described diaphragm and described valve gap is plane and is fitted and connected.
7. the valve head of sampling valve according to claim 2, is characterized in that, push rod, adjusting screw, spring, spring housing, diaphragm, component steel ball and described turning axle are on same axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420156681.6U CN203770714U (en) | 2014-04-01 | 2014-04-01 | Valve head of sampling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420156681.6U CN203770714U (en) | 2014-04-01 | 2014-04-01 | Valve head of sampling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770714U true CN203770714U (en) | 2014-08-13 |
Family
ID=51287905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420156681.6U Expired - Lifetime CN203770714U (en) | 2014-04-01 | 2014-04-01 | Valve head of sampling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770714U (en) |
-
2014
- 2014-04-01 CN CN201420156681.6U patent/CN203770714U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI BEIANG PRECISION OPTOELECTRONICS INSTRUME Free format text: FORMER OWNER: SHANGHAI BEIANG SCIENCE INSTRUMENT CO., LTD. Effective date: 20141226 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200071 ZHABEI, SHANGHAI TO: 200090 YANGPU, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141226 Address after: 200090 Shanghai city Yangpu District Zhoujiazui Road No. 3805 room 4017 Patentee after: SHANGHAI BEION PRECISION PHOTOELECTRIC INSTRUMENT CO.,LTD. Address before: 200071, room 1, No. 258, Lane 1611, Yongxing Road, Shanghai, Zhabei District Patentee before: Shanghai Beiang Science Instruments Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200090 Shanghai city Yangpu District Zhoujiazui Road No. 3805 room 4017 Patentee after: SHANGHAI BEION PHARMACEUTICAL TECHNOLOGY CO.,LTD. Address before: 200090 Shanghai city Yangpu District Zhoujiazui Road No. 3805 room 4017 Patentee before: SHANGHAI BEION PRECISION PHOTOELECTRIC INSTRUMENT CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |