CN116816567A

CN116816567A - Multi-channel flow control valve group

Info

Publication number: CN116816567A
Application number: CN202310795433.XA
Authority: CN
Inventors: 温国生; 李棚; 王正飞
Original assignee: Chongqing Pangu Power Technology Co ltd
Current assignee: Chongqing Pangu Power Technology Co ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-09-29

Abstract

The application discloses a multi-channel flow control valve group, which relates to the field of valve structures and comprises a valve body, wherein the interior of the valve body consists of an upper cavity and a lower cavity, the upper cavity is connected with the lower cavity through a conical surface, an upper cover is arranged on the top side of the valve body, a polygonal column is arranged on one side of the upper cover through an adjusting component, a piston block is sleeved and arranged on the polygonal column at a position close to the top end, and the outer side wall of the piston block is matched with the inner side wall of the upper cavity. In the application, when the valve is used, fuel enters the valve body through the feed inlet after being pressurized, and the first valve core and the plurality of second valve cores are arranged and springs with different elastic coefficients are correspondingly arranged, so that the second valve cores and the first valve cores at different positions are orderly opened when the pressure of high-pressure fuel is different, thereby realizing that the accurate control of the fuel quantity can be ensured when the fuel demand is less, and the fuel flow can be effectively ensured when the fuel demand is more, and the valve is convenient to use.

Description

Multi-channel flow control valve group

Technical Field

The application relates to the field of valve structures, in particular to a multi-channel flow control valve group.

Background

An engine is a machine capable of converting other forms of energy into mechanical energy, including, for example, an internal combustion engine (reciprocating piston engine), an external combustion engine (stirling engine, steam engine, etc.), a jet engine, an electric motor, etc., such as an automobile engine, which is a device for powering an automobile, is the heart of an automobile, a gasoline engine combusts fuel in a combustion chamber by ejecting the fuel to form thrust and ultimately convert the thrust into power, and an automobile flow control valve acts to limit the maximum flow rate of a steering oil pump and determine the magnitude of the power output from the engine.

In the prior art, a flow control valve is generally arranged in an oil pump, the flow of a steering oil pump is in direct proportion to the rotation speed of an engine, the flow difference of the engine is larger when the engine runs at idle speed and high speed, the control valve is generally designed to be matched with a conical surface by designing a valve core and a valve seat, the flow is controlled by controlling the distance between the valve core and the valve seat, in order to ensure that the larger flow is ensured, the size of the valve core is relatively larger, and in this way, the high accuracy of the small flow is difficult to ensure, and certain inconvenience is caused when the valve is used, so that the multi-channel flow control valve group is disclosed to meet the demands of people.

Disclosure of Invention

The application aims to provide a multi-channel flow control valve group, which aims to solve the problems that in the prior art, a control valve is generally provided by designing a valve core and a valve seat to be in conical surface fit, and the flow is controlled by controlling the distance between the valve core and the valve seat, so that the valve core has relatively large size for ensuring large flow, and thus, the high accuracy in the case of small flow is difficult to ensure, and the use is inconvenient.

In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides a multichannel flow control valves, includes the valve body, the inside of valve body comprises upper chamber and lower chamber, just the upper chamber with connect through the conical surface between the lower chamber, the upper cover is installed to the topside of valve body, polygonal column is installed through adjusting part to one side of upper cover, the piston piece has been installed near the top position in the cup joint on the polygonal column, the lateral wall of piston piece with the inside wall assorted of upper chamber, the cover is equipped with first case on the polygonal column, first case be the toper and with conical surface assorted, T-shaped sliding sleeve is installed on the top of first case, T-shaped sliding sleeve slidable mounting is in on the polygonal column, elastic element is installed to the topside of T-shaped sliding sleeve, first case is around a plurality of toper feed inlets have been evenly seted up along vertical, evenly install a plurality of extension pieces on the lateral wall that is close to the top on the T-shaped sliding sleeve, a plurality of extension pieces are all installed the sliding sleeve in the extension piece, a plurality of sliding sleeve have the second corresponding to install the bottom of first case, a plurality of extension pieces are installed the top spring corresponds the top of second side, the top of the spring is installed to the top of the first case.

Based on above structure, when using, the fuel gets into the valve body through the feed inlet after pressurizing, the elasticity coefficient of first spring is less than the elasticity coefficient of elasticity unit, when the pressure of high-pressure fuel is less, high-pressure fuel promotes corresponding second case along the slide bar upwards, and form certain clearance between the toper feed port that corresponds, the fuel gets into the upper chamber through the clearance and flows out through the discharge gate, when high-pressure fuel is the pressure boost gradually, because the elasticity coefficient of a plurality of first springs is the relation of gradual increase, a plurality of toper feed ports are opened gradually, thereby can carry out accurate control to the fuel outflow through the toper feed port of less bore, and along with the gradual pressure boost of high-pressure fuel, the fuel promotes first case and upwards moves along the polygon post, form the clearance with the conical between, thereby make more fuel get into the upper chamber through the clearance, guarantee the maximum flow of fuel, thereby realize, when the fuel demand is less, can guarantee to realize accurate control to the fuel quantity, and when the fuel demand is more, can effectively guarantee the flow of fuel, it is convenient to use.

Preferably, the elastic unit comprises a second spring, the second spring is sleeved on the polygonal column, the top end of the second spring is installed on the bottom side of the piston block, and the bottom end of the second spring is installed on the top side of the first valve core.

Further, through the setting of second spring, the elasticity coefficient of second spring is greater than the elasticity coefficient of first spring, and the second spring promotes first case and conical surface to laminate mutually, when fuel pressure increases to a certain extent, can promote first case and conical surface to separate and form the clearance mutually.

Preferably, the adjusting unit comprises a threaded rod, a threaded sleeve is vertically arranged at the head part of the upper cover, the threaded rod is in threaded connection with the threaded sleeve, the bottom end of the threaded rod is connected with the top end of the polygonal column through the same shaft, and the height display unit is arranged on one side of the threaded rod.

Further, through the setting of threaded rod, rotate the threaded rod, can adjust the distance between piston piece and the conical surface to adjust the compression degree of second spring, thereby can adjust the pressure that needs to promote first case and remove.

Preferably, a knob is mounted at the top end of the threaded rod, and a plurality of protruding buttons are uniformly mounted on the outer circumferential side wall of the knob.

Further, through the setting of knob, the threaded rod of being convenient for rotate increases convenient operation nature, and a plurality of lugs can increase the roughness of knob, are convenient for hold and rotate.

Preferably, the height display unit comprises scale marks, a groove is vertically formed in the outer side wall of the threaded rod, the scale marks are engraved on the wall of the groove, and the scale marks are matched with the top end of the threaded sleeve.

Further, through the setting of scale mark, can judge the position that the piston piece is located at present to judge the compression degree of second spring, be convenient for adjust the pressure that the fuel promoted first case to remove.

Preferably, the first valve core is provided with an avoidance hole for avoiding the polygonal column, a sealing ring is arranged on the wall of the avoidance hole, and the inner side wall of the sealing ring is matched with the outer side wall of the polygonal column.

Further, through the setting of sealing washer, can increase the leakproofness between polygon post and the first case, prevent the oil leak.

Preferably, a plurality of sliding rods are provided with anti-falling caps near the top ends, and the bottom sides of the anti-falling caps are matched with the top sides of the sliding sleeves.

Further, through the setting of anticreep cap, can prevent the sliding rod slippage slip cover, play the effect of pre-fixing, be convenient for the equipment.

Preferably, a fixed disc is arranged on the polygonal column near the bottom end, a plurality of support rods are uniformly arranged on the outer side wall of the fixed disc, and one ends of the support rods are matched with the inner wall of the lower cavity.

Further, through the setting of a plurality of bracing pieces, can prevent that the polygon post from rocking, can guarantee simultaneously that the polygon post is in the central point of valve body.

Preferably, the top side of upper cover is installed the safety cover through the hinge rotation, the knob is located in the safety cover, chucking unit is installed to one side of safety cover.

Further, through the setting of safety cover, can prevent that the knob from being touched by mistake, the position that causes the piston piece from changing.

Preferably, an elastic clip is installed on one side of the protective cover, a clamping groove is formed in the outer wall of one side of the upper cover, and the elastic clip is matched with the clamping groove in a clamping mode.

Further, through the setting of elastic clip, the elastic clip is through warp the card on the draw-in groove, the quick closing and the opening of safety cover of being convenient for, convenient to use.

In summary, the application has the technical effects and advantages that:

1. in the application, when the valve is used, fuel enters the valve body through the feed inlet after being pressurized, and the first valve core and the plurality of second valve cores are arranged and springs with different elastic coefficients are correspondingly arranged, so that the second valve cores and the first valve cores at different positions are orderly opened when the pressure of high-pressure fuel is different, thereby realizing that the accurate control of the fuel quantity can be ensured when the fuel demand is less, and the fuel flow can be effectively ensured when the fuel demand is more, and the valve is convenient to use.

2. According to the application, the piston block and the conical surface can be adjusted by rotating the threaded rod through the arrangement of the threaded rod, and the current position of the piston block can be judged through the arrangement of the scale marks, so that the compression degree of the second spring is judged, the pressure of pushing the first valve core to move by fuel is convenient to adjust, the threaded rod is convenient to rotate through the knob, the operation convenience is improved, the surface roughness of the knob can be increased through the plurality of lugs, and the knob is convenient to hold and rotate.

3. According to the application, the sealing performance between the polygonal column and the first valve core can be increased through the arrangement of the sealing ring, oil leakage is prevented, the polygonal column can be prevented from shaking through the arrangement of the plurality of supporting rods, meanwhile, the polygonal column can be ensured to be positioned at the center of the valve body, and the knob can be prevented from being touched by mistake through the arrangement of the protecting cover, so that the position of the piston block is prevented from being changed.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the present application;

FIG. 2 is a schematic view of the present application in a cut-away configuration;

FIG. 3 is a schematic view of the structure of the area A in FIG. 2;

FIG. 4 is a schematic view of a partial cut-away configuration of a knob area according to the present application;

FIG. 5 is a schematic view of a first valve core region of the present application in partial cross-section;

FIG. 6 is a schematic view of a second valve core region of the present application in partial cross-section.

In the figure: 1. a valve body; 2. a feed inlet; 3. a discharge port; 4. an upper cover; 5. a bump; 6. a knob; 7. polygonal columns; 8. a support rod; 9. a lower cavity; 10. a piston block; 11. a threaded rod; 12. a first valve core; 13. a seal ring; 14. a conical feed hole; 15. a second valve core; 16. a second spring; 17. a T-shaped sliding sleeve; 18. a slide bar; 19. a first spring; 20. a scale mark; 21. a thread sleeve; 23. an extension block; 24. a sliding sleeve; 25. an anti-drop cap; 26. an upper chamber; 27. a protective cover; 28. and a spring clip.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Examples: referring to fig. 1-6, a multichannel flow control valve group is shown, which comprises a valve body 1, the inside of valve body 1 comprises upper chamber 26 and lower chamber 9, and pass through the conical surface connection between upper chamber 26 and the lower chamber 9, upper cover 4 is installed to the topside of valve body 1, polygonal column 7 is installed through adjusting part to one side of upper cover 4, be close to top position on polygonal column 7 and cup joint and install piston block 10, the lateral wall of piston block 10 matches with the inside wall of upper chamber 26, the cover is equipped with first case 12 on polygonal column 7, first case 12 is toper and matches with the conical surface, T-shaped sliding sleeve 17 is installed on polygonal column 7 to the top of first case 12, elastic element is installed to the top side of T-shaped sliding sleeve 17, first case 12 winds T-shaped sliding sleeve 17 and evenly opens a plurality of toper feed opening 14 along vertical, evenly install a plurality of extension pieces 23 on the lateral wall that is close to the top on polygonal column 7, all install sliding sleeve 24 on a plurality of extension pieces 23, a plurality of sliding sleeve 24 are installed on the inside wall and the inside wall of upper chamber 26 is matched with the inside wall, a plurality of sliding sleeve 18 are installed to the sliding sleeve, a plurality of sliding sleeve 18 are installed to the bottom side of sliding sleeve 19, a plurality of sliding sleeve 19 are installed to the second case 19, a plurality of sliding sleeve 19 is installed to the bottom side of sliding sleeve 19 is installed to the second side 19, a plurality of sliding sleeve 19 is installed to the bottom side 19 is corresponding to the first side of sliding sleeve 19, a bottom spring 19 is installed to the second side 19, a bottom side is installed to the second side 19 is corresponding to the second side 19, and has a spring 19 is installed on the top side 19, and has a spring hole is installed.

Based on the above structure, when in use, fuel enters the valve body 1 through the feed inlet 2 after being pressurized, the elasticity coefficient of the first spring 19 is smaller than that of the elastic unit, when the pressure of the high-pressure fuel is smaller, the high-pressure fuel pushes the corresponding second valve core 15 to move upwards along the sliding rod 18 and form a certain gap with the corresponding conical feed hole 14, the fuel enters the upper cavity 26 through the gap and flows out through the discharge hole 3, when the high-pressure fuel is gradually pressurized, the plurality of conical feed holes 14 are gradually opened due to the gradually increased elasticity coefficient of the plurality of first springs 19, so that the fuel outflow can be precisely controlled through the conical feed holes 14 with smaller caliber, and along with the gradual pressurization of the high-pressure fuel, the fuel pushes the first valve core 12 to move upwards along the polygonal column 7 and form a gap with the conical surface, so that more fuel enters the upper cavity 26 through the gap, the maximum flow of the fuel is ensured, and when the fuel demand is smaller, the accurate control can be realized, and when the fuel demand is more, the fuel flow can be effectively ensured, and the use is convenient.

As shown in fig. 3, the elastic unit includes a second spring 16, the second spring 16 is sleeved on the polygonal column 7, the top end of the second spring 16 is installed at the bottom side of the piston block 10, the bottom end of the second spring 16 is installed at the top side of the first valve core 12, the elastic coefficient of the second spring 16 is greater than that of the first spring 19 through the arrangement of the second spring 16, the second spring 16 pushes the first valve core 12 to be attached to the conical surface, and when the fuel pressure increases to a certain extent, the first valve core 12 can be pushed to be separated from the conical surface to form a gap.

As shown in fig. 2 and 3, the adjusting unit includes a threaded rod 11, a threaded sleeve 21 is vertically installed at the head of the upper cover 4, the threaded rod 11 is installed in the threaded sleeve 21 in a threaded manner, the bottom end of the threaded rod 11 is connected with the top end of the polygonal column 7 by the same shaft, a height display unit is installed at one side of the threaded rod 11, the distance between the piston block 10 and the conical surface can be adjusted by rotating the threaded rod 11 through the arrangement of the threaded rod 11, and thus the compression degree of the second spring 16 can be adjusted, and the pressure required to push the first valve core 12 to move can be adjusted.

As shown in fig. 4, the knob 6 is installed on the top of the threaded rod 11, and a plurality of protruding blocks 5 are evenly installed on the outer circumference side wall of the knob 6, so that the threaded rod 11 can be conveniently rotated through the arrangement of the knob 6, the operation convenience is improved, and the plurality of protruding blocks 5 can increase the surface roughness of the knob 6, so that the knob is convenient to hold and rotate.

As shown in fig. 2 and 4, the height display unit includes a scale mark 20, a groove is vertically formed on the outer sidewall of the threaded rod 11, the scale mark 20 is carved on the wall of the groove, the scale mark 20 is matched with the top end of the thread bush 21, and the current position of the piston block 10 can be judged through the arrangement of the scale mark 20, so that the compression degree of the second spring 16 is judged, and the pressure that the fuel pushes the first valve core 12 to move is convenient to adjust.

As shown in fig. 3, the first valve core 12 is provided with an avoidance hole for avoiding the polygonal column 7, the hole wall of the avoidance hole is provided with a sealing ring 13, the inner side wall of the sealing ring 13 is matched with the outer side wall of the polygonal column 7, and the sealing performance between the polygonal column 7 and the first valve core 12 can be improved through the arrangement of the sealing ring 13, so that oil leakage is prevented.

As shown in fig. 5, the sliding rods 18 are provided with the anti-falling caps 25 near the top ends, the bottom sides of the anti-falling caps 25 are matched with the top sides of the sliding sleeves 24, and the sliding rods 18 can be prevented from sliding off the sliding sleeves 24 through the arrangement of the anti-falling caps 25, so that a pre-fixing effect is achieved, and the assembly is convenient.

As shown in fig. 2 and 5, a fixed disk is installed on the polygonal column 7 near the bottom end, a plurality of support rods 8 are uniformly installed on the outer side wall of the fixed disk, one ends of the plurality of support rods 8 are matched with the inner wall of the lower cavity 9, and the polygonal column 7 can be prevented from shaking through the arrangement of the plurality of support rods 8, and meanwhile, the polygonal column 7 can be ensured to be positioned at the central position of the valve body 1.

As shown in fig. 1 and 2, the top side of the upper cover 4 is rotatably provided with a protecting cover 27 through a hinge, the knob 6 is positioned in the protecting cover 27, one side of the protecting cover 27 is provided with a clamping unit, and the knob 6 can be prevented from being mistakenly touched by the setting of the protecting cover 27, so that the position of the piston block 10 is changed.

As shown in fig. 2, a resilient clip 28 is installed on one side of the protective cover 27, a clamping groove is formed in the outer wall of one side of the upper cover 4, the resilient clip 28 is matched with the clamping groove in a clamping manner, and the resilient clip 28 is clamped on the clamping groove through deformation through the arrangement of the resilient clip 28, so that the protective cover 27 can be conveniently and rapidly closed and opened, and the use is convenient.

The working principle of the application is as follows:

when the valve is used, fuel enters the valve body 1 through the feed inlet 2 after being pressurized, the elastic coefficient of the first spring 19 is smaller than that of the second spring 16, when the pressure of high-pressure fuel is smaller, the high-pressure fuel pushes the corresponding second valve core 15 to move upwards along the sliding rod 18 and form a certain gap with the corresponding conical feed hole 14, the fuel enters the upper cavity 26 through the gap and flows out through the discharge hole 3, when the high-pressure fuel is gradually pressurized, the conical feed holes 14 are gradually opened due to the fact that the elastic coefficient of the plurality of first springs 19 is gradually increased, and accordingly, the fuel outflow can be accurately controlled through the conical feed holes 14 with smaller caliber, and along with the gradual pressurization of the high-pressure fuel, the fuel pushes the first valve core 12 to move upwards along the polygonal column 7 to form a gap with the conical surface, so that more fuel enters the upper cavity 26 through the gap, the maximum flow of the fuel is guaranteed, and when the fuel demand is smaller, the fuel quantity can be accurately controlled, and when the fuel demand is more, the fuel flow can be effectively guaranteed, and the fuel flow is convenient and fast to use.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present application, and although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present application.

Claims

1. The utility model provides a multichannel flow control valves, includes valve body (1), its characterized in that: the inside of valve body (1) comprises upper chamber (26) and lower chamber (9), just upper chamber (26) with connect through the conical surface between lower chamber (9), upper cover (4) is installed on the top side of valve body (1), polygonal column (7) are installed through adjusting part to one side of upper cover (4), piston block (10) are cup jointed near the top position on polygonal column (7), the lateral wall of piston block (10) with the inside wall phase-match of upper chamber (26), the cover is equipped with first case (12) on polygonal column (7), first case (12) be the toper and with conical surface phase-match, T shape sliding sleeve (17) are installed on the top of first case (12), T shape sliding sleeve (17) slidable mounting is in polygonal column (7) are last, elastic element is installed on the top side of T shape sliding sleeve (17), first case (12) are around T shape sliding sleeve (17) and evenly install a plurality of even case (23) are seted up along the inside diameter of a plurality of even sliding sleeve (24) are installed to the top of sliding sleeve (23), the bottom of a plurality of slide bar (18) is all installed second case (15), and is a plurality of the bottom of second case (15) is with corresponding toper feed port (14) assorted, a plurality of all overlap on slide bar (18) is equipped with first spring (19), the top of first spring (19) is installed and is corresponding the downside of extension piece (23), the bottom of first spring (19) is installed and is corresponding the top of second case (15), and a plurality of the elasticity coefficient of first spring (19) is the relationship of crescent, feed inlet (2) are installed to the bottom of valve body (1), discharge gate (3) are installed to one side of upper chamber (26).

2. A multi-channel flow control valve set according to claim 1, wherein: the elastic unit comprises a second spring (16), the second spring (16) is sleeved on the polygonal column (7), the top end of the second spring (16) is installed on the bottom side of the piston block (10), and the bottom end of the second spring (16) is installed on the top side of the first valve core (12).

3. A multi-channel flow control valve set according to claim 1, wherein: the adjusting unit comprises a threaded rod (11), a threaded sleeve (21) is vertically arranged at the head part of the upper cover (4), the threaded rod (11) is in threaded connection with the threaded sleeve (21), the bottom end of the threaded rod (11) is connected with the same shaft at the top end of the polygonal column (7), and a height display unit is arranged on one side of the threaded rod (11).

4. A multi-channel flow control valve set according to claim 3, wherein: the top of threaded rod (11) is installed knob (6), evenly install a plurality of lugs (5) button on the outer circumference lateral wall of knob (6).

5. A multi-channel flow control valve set according to claim 3, wherein: the height display unit comprises a scale mark (20), a groove is vertically formed in the outer side wall of the threaded rod (11), the scale mark (20) is engraved on the wall of the groove, and the scale mark (20) is matched with the top end of the thread sleeve (21).

6. A multi-channel flow control valve set according to claim 1, wherein: the valve is characterized in that an avoidance hole for avoiding the polygonal column (7) is formed in the first valve core (12), a sealing ring (13) is arranged on the hole wall of the avoidance hole, and the inner side wall of the sealing ring (13) is matched with the outer side wall of the polygonal column (7).

7. A multi-channel flow control valve set according to claim 1, wherein: and the sliding rods (18) are provided with anti-falling caps (25) close to the top ends, and the bottom sides of the anti-falling caps (25) are matched with the top sides of the sliding sleeves (24).

8. A multi-channel flow control valve set according to claim 1, wherein: a fixed disc is arranged on the polygonal column (7) near the bottom end, a plurality of support rods (8) are uniformly arranged on the outer side wall of the fixed disc, and one ends of the support rods (8) are matched with the inner wall of the lower cavity (9).

9. The multi-channel flow control valve set of claim 4, wherein: the top side of upper cover (4) is installed safety cover (27) through the hinge rotation, knob (6) are located in safety cover (27), chucking unit is installed to one side of safety cover (27).

10. The multi-channel flow control valve set of claim 9, wherein: an elastic clip (28) is arranged on one side of the protective cover (27), a clamping groove is formed in the outer wall of one side of the upper cover (4), and the elastic clip (28) is in clamping fit with the clamping groove.