CN217482051U - Experiment valve for measuring force value - Google Patents
Experiment valve for measuring force value Download PDFInfo
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- CN217482051U CN217482051U CN202221466981.5U CN202221466981U CN217482051U CN 217482051 U CN217482051 U CN 217482051U CN 202221466981 U CN202221466981 U CN 202221466981U CN 217482051 U CN217482051 U CN 217482051U
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Abstract
The utility model discloses an experimental valve for measuring force values, which comprises a valve body, wherein the left end of the valve body is a flow inlet, the right end of the valve body is a flow outlet, a mounting hole is arranged on the valve body between the flow inlet and the flow outlet, and a circular ring-shaped limiting surface is arranged in the valve body; the valve cover is fixedly arranged at the upper end of the mounting hole and is provided with a valve cover central round hole; the cylindrical valve cover adjusting block is provided with external threads, the valve cover adjusting block is in threaded connection with the central hole of the valve cover, and the bottom of the valve cover adjusting block is provided with a piston hole; the cylindrical piston adjusting block is in threaded connection with the piston hole, a piston guide hole is formed in the piston adjusting block, and the lower end of the piston adjusting block protrudes out of the lower end of the valve cover adjusting block; the piston comprises a rod part and a head part; the upper end of the spring is connected with the valve cover adjusting block, and the lower end of the spring is connected with the piston to enable the head of the piston to be abutted against the annular limiting surface. The opening force value and the maximum force value can be rapidly measured and taken as the basis for manufacturing products, so that the research and development period is greatly shortened, and the efficiency is improved.
Description
Technical Field
The utility model belongs to the valve technology, concretely relates to experimental valve is used in power value survey.
Background
Disclosed a check valve in patent CN206439455U, including valve body and valve cap, valve body bottom left side is the influent stream mouth, and the right side is for the effluent stream mouth, the influent stream mouth inboard is equipped with the slope heavy-calibre opening, opening and influent stream mouth are 60 angles of inclination, the opening upper end is equipped with the case of the same angle, threaded connection has the valve cap on the valve body, valve cap inner end lateral wall is equipped with first recess, first recess inside wall sliding connection has the case, the packing ring has been cup jointed to the one end that the valve cap was kept away from to the case, the packing ring lower extreme is equipped with the gasket, the gasket cup joints on the case, the gasket lower extreme is equipped with lock nut. The utility model discloses a first spring and second spring coupling valve cap and case make the first recess inner wall of case and valve cap slide, increase the leakproofness of valve body and valve cap junction through the shape circle of mouth as one speaks, and the valve clack is self-closing in order to prevent the fluid refluence under the thrust effect of factors such as fluid pressure difference, gravity and spring own.
However, the spring groove of the valve has an upward hole, and in the opening and closing process of the valve, media can remain in the hole and are not easy to remove, so that the valve is not suitable for the cleaning industry.
Therefore, I researched and developed an angle-type check valve with a downward piston hole, but found that when the valve was opened and the maximum actual force value was inconsistent with the theoretical force value, the distance of the working area of the spring was required to be adjusted, and the method usually adopted was to repair parts and parts, so that the actual force value was leaned on the theoretical force value, and this method often required many times of repair to obtain the desired data, and the repair process brought the extension of the product development cycle, and was inefficient.
Consequently, when the deviation appears in order to solve the spring force value in verifying the valve, need a large amount of time and energy to repair the problem of accessories, designed the utility model discloses.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's shortcoming, designed a power value experiment valve for survey, but the quick determination opening force value and the biggest power value to regard this as the foundation of manufacturing product, shortened research and development cycle greatly, improved efficiency.
The utility model discloses a technical scheme as follows: experimental valve for force measurement, comprising:
the valve comprises a valve body, wherein the left end of the valve body is provided with a flow inlet, the right end of the valve body is provided with a flow outlet, a mounting hole is formed in the valve body between the flow inlet and the flow outlet, an annular limiting surface is arranged in the valve body, and a central through hole of the annular limiting surface is used for communicating the flow inlet with the flow outlet;
the valve cover is fixedly arranged at the upper end of the mounting hole, and a valve cover central round hole is formed in the valve cover and provided with an internal thread;
the cylindrical valve cover adjusting block is provided with an external thread, the valve cover adjusting block is in threaded connection with the central hole of the valve cover, the bottom of the valve cover adjusting block is provided with a piston hole, the upper end of the piston hole is closed, and the piston hole is a round hole;
the piston adjusting block is in threaded connection with the piston hole, a piston guide hole is formed in the piston adjusting block, and the lower end of the piston adjusting block protrudes out of the lower end of the valve cover adjusting block;
the piston comprises a rod part and a head part, and the rod part is axially and slidably matched and arranged in the piston guide hole;
and the upper end of the spring is connected with the valve cover adjusting block, and the lower end of the spring is connected with the piston so that the head of the piston is abutted to the annular limiting surface.
On the basis of above-mentioned scheme, as preferred, the lower terminal surface of valve gap and the up end of valve body all have the seal groove, and the valve gap gasket is installed in the seal groove, passes through valve gap gasket sealing connection between valve gap and the valve body.
In addition to the above-mentioned solution, preferably, the valve cover adjustment block is further provided with an exhaust hole communicated with the piston hole.
On the basis of the scheme, preferably, the lower end of the piston guide hole is fixedly provided with a shaft sleeve, and the rod part is in clearance fit with the shaft sleeve.
On the basis of the scheme, preferably, the inner diameter of the shaft sleeve is slightly larger than the inner diameter of the piston guide hole.
On the basis of the scheme, preferably, the upper end face of the head is fixedly connected with the rod part, the lower end face of the head is attached with the sealing gasket, and the screw penetrates through the sealing ring and the sealing gasket to fix the sealing ring and the sealing gasket on the lower end face of the head.
On the basis of the scheme, preferably, the included angle between the axis of the piston guide hole and the horizontal plane is 45 degrees.
On the basis of the scheme, preferably, the periphery of the lower end face of the valve cover adjusting block is provided with an upper notch, the periphery of the upper end face of the head is provided with a lower notch, the upper end of the spring is sleeved at the upper notch, and the lower end of the spring is sleeved at the lower notch.
Compared with the prior art, the utility model discloses following beneficial effect has:
the application provides an experimental valve can adjust valve opening force value as required, also can adjust the maximum force value as required simultaneously, carries out the definite value to opening force value and maximum force value to make the check valve according to this definite value.
Avoiding a large amount of repair work and time and shortening the research and development period of products.
Drawings
FIG. 1 is a schematic diagram of the construction of the experimental valve.
Detailed Description
In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
As shown in fig. 1, fig. 1 is a schematic structural view of a test valve in which a cut-away portion (cut-away half or less) of a valve body is located within a dashed box, and an arrow indicates a cutting-away direction.
Experimental valve for measuring force value, based on design without replacing spring, comprising:
the valve comprises a valve body 1, wherein the left end of the valve body is provided with a flow inlet 2, the right end of the valve body is provided with a flow outlet 3, a mounting hole is formed in the valve body between the flow inlet and the flow outlet, the mounting hole is usually a round hole, an annular limiting surface is arranged in the valve body, and a central through hole of the annular limiting surface is used for communicating the flow inlet and the flow outlet;
the valve cover 4 is fixedly arranged at the upper end of the mounting hole, and is provided with a valve cover central circular hole which is provided with internal threads;
the valve cover adjusting block 5 is characterized in that the cylindrical valve cover adjusting block is provided with external threads, the valve cover adjusting block is in threaded connection with the center hole of the valve cover, the bottom of the valve cover adjusting block is provided with a piston hole 51, the upper end of the piston hole is closed, and the piston hole is a round hole;
the piston adjusting block 6 is characterized in that a cylindrical piston adjusting block is in threaded connection with the piston hole, a piston guide hole 61 is formed in the piston adjusting block, and the lower end of the piston adjusting block protrudes out of the lower end of the valve cover adjusting block;
the piston 7 comprises a rod part and a head part, and the rod part is axially and slidably matched and arranged in the piston guide hole to be matched with a gap;
and the upper end of the spring 8 is connected with the valve cover adjusting block, and the lower end of the spring is connected with the piston to enable the head of the piston to be abutted against the annular limiting surface to form sealing, so that the open circuit state is formed between the inflow opening and the outflow opening.
By designing the valve cover adjusting block and the piston adjusting block, the maximum force value can be adjusted at will while the opening force value is adjusted. Therefore, the repair of parts is avoided, the working efficiency is improved, and the research and development period is shortened.
The lower extreme fixed mounting axle sleeve 62 of piston guiding hole, clearance fit between pole portion and the axle sleeve, the internal diameter of axle sleeve should slightly be less than the internal diameter of piston guiding hole, and the piston can not produce the friction with between the piston guiding hole in the motion process, improves life.
The lower terminal surface of valve gap and the up end of valve body all have the seal groove, and valve gap gasket 41 installs in the seal groove, passes through valve gap gasket sealing connection between valve gap and the valve body.
The valve cover adjusting block is also provided with an exhaust hole communicated with the piston hole, and the axial direction of the exhaust hole is the radial direction of the piston hole.
The upper end surface of the head part is fixedly connected with the rod part, the lower end surface is adhered with a sealing gasket 71, and a screw penetrates through the sealing ring 72 and the sealing gasket to fix the sealing ring and the sealing gasket on the lower end surface of the head part.
The included angle between the axis of the center hole of the valve cover and the horizontal plane is 45 degrees, so that an angle-shaped one-way valve is formed, and the phenomenon of pressure fluctuation is effectively prevented.
For the spring, the specific connection is as follows: the periphery of the lower end face of the valve cover adjusting block is provided with an upper notch, the periphery of the upper end face of the head is provided with a lower notch, the upper end of the spring is sleeved at the upper notch, and the lower end of the spring is sleeved at the lower notch.
The two ends of the spring can adopt a fixing mode of direct rigid connection with the corresponding notches, and can also be directly sleeved at the corresponding notches without rigid connection.
The valve force value measuring method utilizes the experimental valve to be matched with a push-pull dynamometer for measurement,
the measurement method is as follows:
a: cutting, namely cutting the assembled experimental valve, and cutting off part of the valve body, so that the contact condition of the piston head and the annular limiting surface can be observed visually;
b: measuring an opening force value, abutting the head of the piston by using a push-pull force meter, and taking the value of the push-pull force meter in the state as the valve opening force value when the head of the piston is separated from the annular limiting surface by visual inspection;
c: determining an opening force value, comparing the measured valve opening force value with a preset force value, if the measured valve opening force value is not equal to the preset force value, driving the valve cover adjusting block to move in the axial direction of the valve cover adjusting block, adjusting the minimum distance between the lower end surface of the valve cover adjusting block and the annular limiting surface until the measured valve opening force value is the same as the preset force value, and determining the relative position relationship between the valve cover adjusting block and the valve cover;
d: measuring the maximum force value, continuously supporting the push-pull dynamometer until the push-pull dynamometer is not moved, at the moment, supporting the upper end surface of the piston head against the lower end surface of the piston adjusting block, and taking the numerical value of the push-pull dynamometer as the maximum force value in the state;
e: and (3) determining a maximum force value, comparing the measured maximum force value of the valve with a preset maximum force value, if the measured maximum force value of the valve is not equal to the preset maximum force value, driving the piston adjusting block to move in the axial direction of the piston adjusting block, adjusting the minimum distance between the piston adjusting block and the annular limiting surface until the measured maximum force value of the valve is the same as the preset maximum force value, and determining the relative position relation between the piston adjusting block and the valve cover adjusting block.
The measuring method is simple, convenient to operate, free of repairing the valve cover for multiple times, capable of greatly shortening the product forming period and high in efficiency.
When part of the valve body is cut, the annular limiting surface is used as reference, and the part of the valve body, which is not larger than one half of the circumference of the annular limiting surface, is cut off from the lower part of the annular limiting surface, so that the contact condition of the head of the piston and the annular limiting surface is exposed.
According to the method for manufacturing the check valve by using the measuring method, the piston adjusting block, the valve cover adjusting block and the valve cover are processed into an integral structure according to the relative position relationship between the valve cover adjusting block and the valve cover and between the valve cover adjusting block and the piston adjusting block when the opening force value and the maximum force value are determined in the measuring method.
The experimental valve and the check valve manufactured by the corresponding measuring method have the following advantages:
piston hole setting down compares the setting up among the prior art, and in the valve switch in-process, the medium can not remain in the hole, is applicable to sealed, cleanliness and the vital large-scale gas distribution application occasion of purity.
The piston hole is downward, and sliding seal does not need to be arranged between the piston rod and the hole wall of the piston hole, so that sealing maintenance and maintenance are not needed, and the service life of a product is prolonged.
The sealing gasket is soft sealing, and when the valve is closed, the situation that the sealing point is gapped and the valve cannot be completely closed due to insufficient concentricity of the piston and the valve body can be prevented.
All hole site designs are in the valve cavity, and when the valve was closed, the medium can in time be got rid of, and is difficult for remaining.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. Experiment valve for measuring force value, which is characterized by comprising:
the valve comprises a valve body, wherein the left end of the valve body is provided with a flow inlet, the right end of the valve body is provided with a flow outlet, a mounting hole is formed in the valve body between the flow inlet and the flow outlet, an annular limiting surface is arranged in the valve body, and a central through hole of the annular limiting surface is used for communicating the flow inlet with the flow outlet;
the valve cover is fixedly arranged at the upper end of the mounting hole, and a valve cover central round hole is formed in the valve cover and provided with an internal thread;
the cylindrical valve cover adjusting block is provided with external threads and is in threaded connection with the central hole of the valve cover, the bottom of the valve cover adjusting block is provided with a piston hole, the upper end of the piston hole is closed, and the piston hole is a round hole;
the cylindrical piston adjusting block is in threaded connection with the piston hole, a piston guide hole is formed in the piston adjusting block, and the lower end of the piston adjusting block protrudes out of the lower end of the valve cover adjusting block;
the piston comprises a rod part and a head part, and the rod part is axially and slidably matched and arranged in the piston guide hole;
and the upper end of the spring is connected with the valve cover adjusting block, and the lower end of the spring is connected with the piston so that the head of the piston is abutted against the annular limiting surface.
2. The experimental valve for measuring force value of claim 1, wherein the lower end surface of the valve cover and the upper end surface of the valve body are provided with sealing grooves, the valve cover gasket is installed in the sealing grooves, and the valve cover and the valve body are hermetically connected through the valve cover gasket.
3. The experimental valve for measuring force according to claim 1, wherein the valve cover adjustment block is further provided with a vent hole communicating with the piston hole.
4. The valve as claimed in claim 1, wherein a bushing is fixedly installed at a lower end of the piston guide hole, and the rod portion is in clearance fit with the bushing.
5. The experimental valve for force measurement according to claim 1, wherein the inner diameter of the sleeve is slightly larger than the inner diameter of the piston guide hole.
6. The experimental valve for measuring force value of claim 1, wherein the upper end surface of the head is fixedly connected to the shaft, the lower end surface is attached with a sealing gasket, and a screw penetrates through the sealing ring and the sealing gasket to fix the sealing ring and the sealing gasket on the lower end surface of the head.
7. The valve of claim 1, wherein the axis of the piston guide hole is at an angle of 45 degrees to the horizontal.
8. The valve according to claim 1, wherein the valve cover adjusting block has an upper notch on the outer circumference of the lower end surface, the head has a lower notch on the outer circumference of the upper end surface, and the upper end of the spring is fitted over the upper notch and the lower end is fitted over the lower notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221466981.5U CN217482051U (en) | 2022-06-13 | 2022-06-13 | Experiment valve for measuring force value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221466981.5U CN217482051U (en) | 2022-06-13 | 2022-06-13 | Experiment valve for measuring force value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217482051U true CN217482051U (en) | 2022-09-23 |
Family
ID=83316115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221466981.5U Active CN217482051U (en) | 2022-06-13 | 2022-06-13 | Experiment valve for measuring force value |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217482051U (en) |
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2022
- 2022-06-13 CN CN202221466981.5U patent/CN217482051U/en active Active
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