CN218207817U - Pneumatic large-scale batching valve - Google Patents
Pneumatic large-scale batching valve Download PDFInfo
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- CN218207817U CN218207817U CN202122998164.6U CN202122998164U CN218207817U CN 218207817 U CN218207817 U CN 218207817U CN 202122998164 U CN202122998164 U CN 202122998164U CN 218207817 U CN218207817 U CN 218207817U
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Abstract
The utility model belongs to the technical field of mechanical production equipment, especially, relate to a pneumatic large-scale batching valve. The double-cylinder type double-cylinder multi-discharge-port sealing device comprises a first cylinder body, a second cylinder body, a driving assembly and a first discharge head, wherein a first feed port is formed in the side wall of the first cylinder body, a first discharge port is formed in the first end of the first cylinder body, the driving assembly is installed at the second end of the first cylinder body in a matched mode, the driving assembly is provided with a first execution end extending into the first cylinder body and a second execution end nested in the first execution end, the first discharge head is installed at the first discharge port in a matched mode, the first end of the second cylinder body located inside the first cylinder body is sealed with the first discharge head in a matched mode, the second end of the second cylinder body is connected with the end portion of the first execution end, a second feed port is formed in the side wall of the second cylinder body, a second discharge port communicated with the first discharge port is formed in the first end of the second cylinder body, and the second execution end can extend into the second cylinder body to seal the second discharge port. The utility model is used for solve the problem of the easy weeping of conventional governing valve long-time use.
Description
Technical Field
The utility model belongs to the technical field of mechanical production equipment, especially, relate to a pneumatic large-scale batching valve.
Background
In the industries of essence, spice, fine chemical engineering (such as paint and ink), medicine preparation, daily chemicals, beverage and the like, whether in experimental research or batch production, a plurality of liquid (or powder and particle) raw materials are required to be proportioned, metered and mixed according to a formula, the process is an ingredient process, and an adjusting valve is required to be used in the process.
The regulating valve used when the cigarette factory carries out the automatic preparation of the essence and the spice mainly comprises the following schemes: firstly, a pneumatic ball valve and a throttle valve are added; secondly, adding a V-shaped pneumatic ball valve into the valve positioner; thirdly, an integrated anti-drip type dispensing valve; the first of these solutions has the disadvantage that the throttle valve is easily blocked, which may result in no dosing; the second scheme has the defects that the number of parts is large, and dripping leakage of a pipeline is inevitable after the batching is finished; at present, the third scheme is mainly adopted for integrating the drip-proof dispensing valve.
However, most of the existing regulating valves are controlled by a small-flow conical valve and a large-flow conical valve through a two-position combined cylinder and a compression spring, the compression spring can enable a piston pressure head to be pressed on a discharge port, the other compression spring can enable a conical plug to be pressed on a fine discharge port, the effect of preventing dripping and leaking gradually deteriorates after long-term use, the material liquid during automatic preparation of essence and spice is corrosive, the spring is made of a corrosion-resistant material, but the mechanical property of the spring is greatly weakened after the spring is used for a period of time due to the fact that the spring is immersed in the material liquid, the effect of resisting the conical plug is difficult to achieve, liquid leakage is caused, and the effect of ingredients is influenced.
SUMMERY OF THE UTILITY MODEL
The technical problem that this application embodiment will solve lies in overcoming prior art not enough, provides a pneumatic large-scale batching valve for solve the problem of the easy weeping of conventional governing valve long-time use.
The technical scheme for solving the technical problems in the embodiment of the application is as follows: a pneumatic macro-ingredient valve comprising:
the side wall of the first cylinder is provided with a first feeding hole, and a first end of the first cylinder is provided with a first discharging hole;
the driving assembly is matched and installed at the second end of the first cylinder body and provided with a first execution end extending into the first cylinder body and a second execution end nested in the first execution end;
the first discharging head is mounted at the first discharging hole in a matching manner;
the first end of the second cylinder body positioned in the first cylinder body is matched and sealed with the first discharging head, the second end of the second cylinder body is connected with the end part of the first execution end, the side wall of the second cylinder body is provided with a second feeding hole, and the first end of the second cylinder body is provided with a second discharging hole communicated with the first discharging hole;
the second execution end can extend into the second cylinder body to seal the second discharge hole.
Compared with the prior art, the technical scheme has the following beneficial effects:
the second barrel and the first barrel form sealing matching, plug up the first discharge gate, and the second barrel passes through the drive of drive assembly's first execution end, the second execution end that can go deep into in the second barrel simultaneously can seal the second discharge gate in the second barrel, utilize the concertina movement of the first execution end of mutual nestification and second execution end, realize the on-off control of first discharge gate and second discharge gate, control is nimble accurate, the position that contacts with the feed liquid simultaneously all adopts corrosion-resistant processing, there is not the part that the mechanical properties such as spring relatively high to the requirement of structure in these positions, a small amount of corrosions can not cause the decline of leakproofness, the condition of reduction weeping takes place.
Further, the inner wall of the first discharging head is funnel-shaped.
Set up first ejection of compact head into leaking hopper-shaped, reduce the scattering of the ejection of compact for the ejection of compact is concentrated more and is gathered together.
Furthermore, the inner wall of the first discharging head is provided with a spiral rifling.
The spiral rifling of seting up at first ejection of compact head inner wall can accelerate the ejection of compact flow of first ejection of compact head, can guarantee simultaneously that the ejection of compact is that the material is more concentrated, avoids the scattering.
Further, the driving assembly comprises a first air cylinder and a second air cylinder, the first air cylinder comprises a first cylinder barrel, a first end cover, a first piston and a first piston rod, and the second air cylinder comprises a second cylinder barrel, a second end cover, a second piston and a second piston rod;
one end of the first cylinder barrel is connected with the second end of the first cylinder barrel, the other end of the first cylinder barrel is a first end cover, the first end cover is connected with one end of the second cylinder barrel, the other end of the second cylinder barrel is a second end cover, through holes are formed in the middle of the first piston and the first piston rod, the second piston rod penetrates through the connecting position of the first end cover and the second cylinder barrel to be inserted into the through holes, and penetrates through the center of the first piston rod to enter the second cylinder barrel so as to seal the second discharge hole.
Furthermore, a step surface matched with the first discharging head is formed at the first end of the second cylinder body.
The stepped surface is matched with the discharging head to form sealing, so that the sealing effect is improved.
Further, a first sealing gasket matched with the step surface is arranged between the first discharging head and the first end of the first cylinder.
And a sealing gasket is arranged on the step surface, and the step surface of the first cylinder is in contact with the sealing gasket to form sealing, so that the sealing effect formed by the first cylinder is enhanced.
Further, still include the second ejection of compact head, second ejection of compact head accordant connection in the first end of second barrel, the inside cavity of second ejection of compact head forms the second discharge gate.
The second discharge gate sets up in the second discharge head, can realize changing the size of second discharge gate through changing the second discharge head, satisfies the control of different precisions.
Furthermore, a second sealing gasket matched with the end part of the second execution end is arranged between the second discharging head and the first end of the second cylinder body.
Furthermore, first tension springs are evenly arranged between the first piston and the first end cover along the circumference, and second tension springs are evenly arranged between the second piston and the second end cover along the circumference.
The first tension spring and the second tension spring are arranged between the piston and the end cover and are not in contact with materials, so that the corrosion of the materials to the elastic parts is avoided, the elastic parts are damaged, and the liquid leakage is avoided.
Furthermore, the sectional area of the first feeding hole is 5-10 times of that of the second feeding hole, and the sectional area of the first discharging hole is 5-10 times of that of the second discharging hole.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
1. through the connection of the driving assembly and the first cylinder, the first cylinder and the second cylinder are in a compression state, the outer side of the second discharge port is separated from the inner side of the first discharge port, the feed liquid enters the first cylinder through the first feed port and then enters the batching tank through the first discharge port, at the moment, the feed liquid is in a large flow state, at the last stage of batching, in order to be accurate, the flow is required to be reduced, the first piston drives the first piston rod by extending the first cylinder, the outer side of the second discharge port is clamped and sealed with the inner side of the first discharge port, the feed liquid enters the second cylinder through the second feed port after passing through the first feed port and enters the batching tank through the second discharge port, at the moment, the feed liquid enters the batching tank through the channel of the batching tank and is blocked because the second feed port and the second discharge port are respectively smaller than the first feed port and the first discharge port, the flow is small and suitable for accurate batching, and when the feed liquid reaches a preset batching amount, the feed liquid extends the second cylinder, the second piston drives the second piston rod to move to the second piston rod to block one end of the second discharge port, and the channel of the batching tank, and the feed liquid is finished; parts in contact with the feed liquid are subjected to corrosion resistance treatment, parts with high requirements on structures due to mechanical properties such as springs do not exist in the parts, the sealing performance cannot be reduced due to small amount of corrosion, the switching of large flow, small flow and closing can be smoothly completed by matching of the driving assembly, the automation degree is high, and the switching speed is high;
2. the first sealing gasket is arranged at the matched clamping position between the outer side of the second discharge port and the inner side of the first discharge port, so that the sealing performance between the second discharge port and the first discharge port is further enhanced, and liquid leakage is effectively prevented; the tension spring in the driving assembly is arranged to compress and extend the air cylinder to a specified position when the air cylinder is matched with the air cylinder; the sectional area of the first feeding hole is 5-10 times that of the second feeding hole, and the sectional area of the first discharging hole is 5-10 times that of the second discharging hole, and the sectional area can be adjusted according to the accuracy requirement of the batching; the utility model relates to an exquisiteness, simple structure, the practicality is strong, suitable popularization.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a perspective view of the overall structure according to the embodiment of the present invention.
Fig. 2 is an overall sectional structural view of fig. 1.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2.
Reference numerals:
1. a first cylinder; 2. a first feed port; 3. a first discharge port;
4. a first cylinder; 5. a first cylinder; 6. a first end cap; 7. a first piston; 8. a first piston rod;
9. a second cylinder; 10. a second cylinder; 11. a second end cap; 12. a second piston; 13. a second piston rod;
14. a through hole;
15. a first discharge head;
16. a second cylinder; 17. a second feed port; 18. a second discharge port;
19. a step surface;
20. a first gasket;
21. a second discharge head;
22. a second gasket;
23. a first tension spring; 24. a second tension spring.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
As shown in fig. 1, the embodiment of the present invention provides a pneumatic large-scale batching valve, which includes: the device comprises a first cylinder 1, a driving assembly, a first discharging head 15 and a second cylinder 16.
The side wall of the first cylinder body 1 is provided with a first feed port 2, a first end of the first cylinder body 1 is provided with a first discharge port 3, a first discharge head 15 is installed at the first discharge port 3 in a matching manner, a driving assembly is installed at a second end of the first cylinder body 1 in a matching manner, the driving assembly is provided with a first execution end extending into the first cylinder body 1 and a second execution end nested in the first execution end, specifically, the driving assembly comprises a first cylinder 4 and a second cylinder 9, the first cylinder 4 comprises a first cylinder barrel 5, a first end cover 6, a first piston 7 and a first piston rod 8, the second cylinder 9 comprises a second cylinder barrel 10, a second end cover 11, a second piston 12 and a second piston rod 13, the first execution end is specifically the first piston rod 8, and the second execution end is specifically the second piston rod 13;
one end of the first cylinder barrel 5 is connected with the second end of the first cylinder barrel 1, the other end of the first cylinder barrel 5 is a first end cover 6, the first end cover 6 is connected with one end of the second cylinder barrel 10, the other end of the second cylinder barrel 10 is a second end cover 11, through holes 14 are formed in the middle of the first piston 7 and the middle of the first piston rod 8, and the second piston rod 13 penetrates through the joint of the first end cover 6 and the second cylinder barrel 10 to be inserted into the through holes 14 and penetrates through the center of the first piston rod 8 to enter the second cylinder barrel 16 so as to seal the second discharge hole 18.
The second barrel 16 is located inside the first barrel 1, and the first end of the second barrel 16 is matched and sealed with the first discharging head 15, so that the material cannot flow through the first discharging port 3 through the first feeding port 2 and flows out, the second end of the second barrel 16 is connected with the end of the first piston rod 8, the side wall of the second barrel 16 is provided with a second feeding port 17, the first end of the second barrel is provided with a second discharging port 18 communicated with the first discharging port 3, after the first end of the second barrel 16 is matched and sealed with the first discharging head 15, the material can only flow in through the second feeding port 17 and flow out through the second discharging port 18, and the second piston rod 13 can stretch into the second barrel 16 to seal the second discharging port 18.
The second cylinder 16 and the first cylinder 1 form sealing matching to block the first discharge port 3, the second cylinder 16 is driven by the first piston rod 8 of the driving component, and meanwhile, the second piston rod 13 which can go deep into the second cylinder 16 can seal the second discharge port 18 in the second cylinder 16, the opening and closing control of the first discharge port 3 and the second discharge port 18 is realized by utilizing the telescopic motion of the first piston rod 8 and the second piston rod 13 which are mutually nested, the control is flexible and accurate, meanwhile, the parts which are in contact with the feed liquid are subjected to corrosion resistance treatment, the parts do not have components with higher requirements on the structure by mechanical properties such as springs, the sealing performance cannot be reduced due to a small amount of corrosion, and the occurrence of liquid leakage is reduced.
In this embodiment, first stub bar 15 inner wall sets up to leaking hopper-shaped, sets up first stub bar 15 to leaking hopper-shaped, reduces the scattering of the ejection of compact for the ejection of compact is concentrated more and is gathered together.
In another embodiment, the inner wall of the first discharging head 15 is provided with a spiral rifling; or, on the basis that the inner wall of the first discharging head 15 is funnel-shaped, a spiral rifling is arranged. The spiral rifling of seting up at first stub bar 15 inner wall can accelerate the ejection of compact flow of first stub bar 15, can guarantee simultaneously that the ejection of compact is that the material is more concentrated, avoids the scattering.
As shown in fig. 3, a step surface 19 matched with the first discharging head 15 is formed at a first end of the second cylinder 16, and a seal is formed by matching the step surface 19 with the discharging head, so that the sealing effect is improved; a first sealing gasket 20 matched with the step surface 19 is arranged between the first discharge head 15 and the first end of the first cylinder 1, a sealing gasket is arranged on the step surface 19, and the step surface 19 of the first cylinder 1 is in contact with the sealing gasket to form sealing, so that the sealing effect formed by the first cylinder 1 is enhanced.
Specifically, still include second stub bar 21, second stub bar 21 accordant connection in the first end of second barrel 16, the inside cavity of second stub bar 21 forms second discharge gate 18, and second discharge gate 18 sets up in second stub bar 21, can realize changing the size of second discharge gate 18 through changing second stub bar 21, satisfies different precision's control, second stub bar 21 with be provided with between the first end of second barrel 16 with the sealed pad 22 of second piston rod 13 tip complex.
As shown in fig. 2, a first tension spring 23 is uniformly arranged between the first piston 7 and the first end cap 6 along the circumference, a second tension spring 24 is uniformly arranged between the second piston 12 and the second end cap 11 along the circumference, and the first tension spring 23 and the second tension spring 24 are arranged between the piston and the end caps and do not contact with the material, so that the corrosion of the material to the elastic part, the damage of the elastic part and the leakage of the liquid are avoided.
As shown in fig. 2, the pneumatic large-scale ingredient valve is in a closed state, the first cylinder 4 and the second cylinder 9 are both in an extended state, the first tension spring 23 and the second tension spring 24 are both extended to a state with the highest tension, the transition of the pneumatic large-scale ingredient valve from a small flow state to a closed state is a process of extension of the second cylinder 9, the second piston 12 pushes the second piston rod 13 to move forward until the second piston rod 13 abuts against the tail part of the second discharge port 18 and abuts against the second sealing gasket 22 to block the second feed port 17, and the feed liquid cannot enter the ingredient tank through the second feed port 17, so that the pneumatic adjustable-flow pneumatic large-scale ingredient valve is in a closed state.
The pneumatic large-scale batching valve is in a small flow state, the second cylinder 9 is in a compressed state, the second tension spring 24 is in a lowest tension state, the first cylinder 4 is in an extending state, the first tension spring 23 is extended to a highest tension state, the first piston 7 pushes the first piston rod 8 to move forwards in the extending process of the first cylinder 4 until the outer side of the second discharge port 18 and the inner side of the first discharge port 3 are clamped and sealed through the first sealing gasket 20, meanwhile, when the outer side of the second discharge port and the inner side of the first discharge port are matched and clamped, the first feed port and the second feed port are coaxial, namely, the second feed port 17 is aligned with the first feed port 2, the cross section of the second feed port 17 and the cross section of the first feed port 2 are coaxial, feed liquid enters the second feed port 17 through the first feed port 2 and enters the batching tank through the second discharge port 18 through the second cylinder 16, the cross section of the first discharge port 3 is 10 times of the cross section of the second discharge port 18, the flow rate is reduced by 10% of the original flow rate under the same condition, and the pneumatic large-scale batching valve is in a small flow state.
The pneumatic large-scale batching valve is in a large-flow state, the first piston rod 8 is connected with the second cylinder 16, the first cylinder 5 is connected with the first cylinder 1, the second piston rod 13 extends into the second cylinder 16, and the first cylinder 1, the second cylinder 16 and the first cylinder 5 are coaxially arranged; the first cylinder 4 and the second cylinder 9 are both in a compression state, the first tension spring 23 and the second tension spring 24 are both in a lowest tension state, feed liquid enters the first cylinder 1 through the first feed port 2 and enters the batching tank through the first discharge port 3, and at the moment, the large pneumatic batching valve is in a large-flow state.
The switching of large flow, small flow and closing can be smoothly completed through the step-by-step movement of the first air cylinder 4 and the second air cylinder 9, the degree of automation is high, the switching speed is high, the parts in contact with the material liquid are subjected to corrosion resistance treatment, parts with high requirements on the structure due to mechanical properties such as springs do not exist in the parts, and the sealing performance cannot be reduced due to small amount of corrosion.
In another embodiment, the cross-sectional area of the first discharge hole 3 is 5 times that of the second discharge hole 18, and when the pneumatic large-scale batching valve is in a small flow state, the flow is reduced to 20% of the original flow under the condition of the same flow speed.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.
Claims (9)
1. A pneumatic macro-ingredient valve, comprising:
the side wall of the first barrel is provided with a first feeding hole, and a first end of the first barrel is provided with a first discharging hole;
the driving assembly is matched and installed at the second end of the first cylinder body and provided with a first execution end extending into the first cylinder body and a second execution end nested in the first execution end;
the first discharging head is installed at the first discharging hole in a matching manner;
the first end of the second cylinder body positioned in the first cylinder body is matched and sealed with the first discharging head, the second end of the second cylinder body is connected with the end part of the first execution end, the side wall of the second cylinder body is provided with a second feeding hole, and the first end of the second cylinder body is provided with a second discharging hole communicated with the first discharging hole;
the second execution end can extend into the second cylinder body to seal the second discharge hole;
the inner wall of the first discharging head is funnel-shaped.
2. The large pneumatic batching valve according to claim 1, characterized in that the inner wall of the first discharging head is provided with a spiral rifling.
3. A pneumatic large ingredient valve according to claim 1, wherein the drive assembly comprises a first cylinder and a second cylinder, the first cylinder comprises a first cylinder barrel, a first end cover, a first piston and a first piston rod, and the second cylinder comprises a second cylinder barrel, a second end cover, a second piston and a second piston rod;
one end of the first cylinder barrel is connected with the second end of the first cylinder barrel, the other end of the first cylinder barrel is a first end cover, the first end cover is connected with one end of the second cylinder barrel, the other end of the second cylinder barrel is a second end cover, through holes are formed in the middle of the first piston and the first piston rod, the second piston rod penetrates through the connecting position of the first end cover and the second cylinder barrel to be inserted into the through holes, and penetrates through the center of the first piston rod to enter the second cylinder barrel so as to seal the second discharge hole.
4. A pneumatically actuated large ingredient valve as claimed in claim 1, wherein said second barrel first end is formed with a stepped surface that mates with said first discharge head.
5. A pneumatic large-scale ingredient valve according to claim 4, wherein a first sealing gasket matched with the step surface is arranged between the first material outlet head and the first end of the first cylinder body.
6. A pneumatic large-scale batching valve according to claim 1, further comprising a second discharging head, wherein said second discharging head is connected with the first end of said second cylinder body in a matching way, and a second discharging hole is formed in the second discharging head in a hollow way.
7. A pneumatic large-scale ingredient valve according to claim 6, wherein a second sealing gasket matched with the end part of the second execution end is arranged between the second outlet head and the first end of the second cylinder body.
8. A pneumatic large-scale ingredient valve according to claim 3, wherein a first tension spring is uniformly arranged between the first piston and the first end cover along the circumference, and a second tension spring is uniformly arranged between the second piston and the second end cover along the circumference.
9. A pneumatic large batching valve according to claim 1, wherein the first inlet cross-sectional area is 5-10 times the second inlet cross-sectional area and the first outlet cross-sectional area is 5-10 times the second outlet cross-sectional area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122998164.6U CN218207817U (en) | 2021-12-01 | 2021-12-01 | Pneumatic large-scale batching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122998164.6U CN218207817U (en) | 2021-12-01 | 2021-12-01 | Pneumatic large-scale batching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218207817U true CN218207817U (en) | 2023-01-03 |
Family
ID=84628323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122998164.6U Active CN218207817U (en) | 2021-12-01 | 2021-12-01 | Pneumatic large-scale batching valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218207817U (en) |
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2021
- 2021-12-01 CN CN202122998164.6U patent/CN218207817U/en active Active
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Effective date of registration: 20230410 Address after: 225000 north head of Suzhong Road, Baoying County, Yangzhou City, Jiangsu Province Patentee after: BAOYING RENHENG INDUSTRIAL Co.,Ltd. Patentee after: HENAN JINRUI FLAVORING AND ESSENCE CO. Address before: 225000 north head of Suzhong Road, Baoying County, Yangzhou City, Jiangsu Province Patentee before: BAOYING RENHENG INDUSTRIAL Co.,Ltd. |
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