CN213298830U

CN213298830U - Crankshaft piston valve

Info

Publication number: CN213298830U
Application number: CN202021813663.2U
Authority: CN
Inventors: 赵永胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-05-28
Anticipated expiration: 2030-08-26

Abstract

The utility model discloses a crankshaft piston valve, including valve body and the bent axle of being connected perpendicularly with the valve body, the crank arm of bent axle passes through the axle sleeve and is connected with the connecting hole on the valve body, the main journal of bent axle one end is connected with the handle that is located the valve body outside, the crank pin of the bent axle other end is connected with the piston subassembly that is located the valve body, the piston subassembly includes the push rod of being connected with the crank pin, the push rod is parallel with the central line of valve body, the one end and the piston of push rod are connected, the section radius of piston is from the one end that is close to the push rod to the one end of keeping away from the push rod; one end of the valve body close to the piston is provided with a flaring section, and one end of the flaring section close to the crankshaft is provided with a first chute, a limiting groove and a second chute which are adjacently arranged. The utility model adopts the above structure the bent axle piston valve, simple structure the while leakproofness is good.

Description

Crankshaft piston valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to a bent axle piston valve.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. The good structure of valve leakproofness among the prior art is comparatively complicated, and the leakproofness of the structure comparatively simple is relatively poor, and simple structure and good leakproofness can not compromise simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bent axle piston valve, simple structure's leakproofness is good simultaneously.

In order to achieve the purpose, the utility model provides a crankshaft piston valve, including the valve body and with the bent axle of valve body perpendicular connection, the crank arm of bent axle passes through the axle sleeve and is connected with the connecting hole on the valve body, the main journal of bent axle one end is connected with the handle that is located the valve body outside, the crank pin of the bent axle other end is connected with the piston subassembly that is located in the valve body, the piston subassembly includes the push rod that is connected with the crank pin, the push rod is parallel with the central line of valve body, the one end of push rod is connected with the piston, the section radius of piston increases from the one end that is close to the push rod to the one end of keeping away from the push rod gradually, the one end that the piston was kept away from the push;

the valve body is close to the one end of piston is equipped with the flaring section, the flaring section is close to the one end of bent axle is equipped with first chute, spacing groove and the second chute of adjacent setting, the cross-section radius of first chute is from being close to the one end of spacing groove is to keeping away from the one end of spacing groove is crescent, the spacing groove with the structure phase-match on spacing limit, the chute with the structure phase-match of piston, the chute with still be equipped with between the piston and be located sealing washer on the piston, the flaring section is kept away from the one end of bent axle is through first pressure mother and first articulate, the valve body is kept away from the one end of flaring section is pressed female and second articulate through the second.

Preferably, O-shaped rings are arranged between the first connector and the valve body, between the second connector and the valve body, and between the crankshaft and the shaft sleeve.

Preferably, the push rod is provided with a through groove connected with the crank pin, the long edge of the through groove is perpendicular to the central line of the valve body, and the short edge of the through groove is equal to the diameter of the crank pin.

Therefore, the utility model adopts the above structure the bent axle piston valve, simple structure the while leakproofness is good.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

Fig. 1 is a cross-sectional view of an embodiment of the crankshaft piston valve of the present invention.

Reference numerals

1. A valve body; 2. a crankshaft; 21. a crank arm; 22. a main journal; 23. a crank pin; 3. a shaft sleeve; 4. a handle; 5. a push rod; 6. a piston; 7. a limiting edge; 8. a seal ring; 9. a first pressing nut; 10. a first joint; 11. a second pressing nut; 12. a second joint.

Detailed Description

The following describes embodiments of the present invention with reference to the accompanying drawings.

Fig. 1 is the utility model discloses cross-sectional view of bent axle piston valve embodiment, as shown in the figure, a bent axle piston valve, including valve body 1 and the perpendicular bent axle 2 of being connected with valve body 1, bent axle 2's crank arm 21 passes through axle sleeve 3 and is connected with the connecting hole on the valve body 1, is equipped with O type circle between bent axle 2 and the axle sleeve 3, and the leakproofness that bent axle 2 and axle sleeve 3 are connected can be guaranteed to O type circle. The main journal 22 at one end of the crankshaft 2 is connected with the handle 4 positioned outside the valve body 1, and the handle 4 is convenient for a user to rotate the crankshaft 2. Crank pin 23 of the 2 other ends of bent axle is connected with the piston assembly who is located valve body 1, piston assembly includes the push rod 5 of being connected with crank pin 23, push rod 5 is parallel with valve body 1's central line, be equipped with the logical groove of being connected with crank pin 23 on push rod 5, the long limit that leads to the groove sets up with valve body 1's central line is perpendicular, the minor face that leads to the groove is isometric with the diameter of crank pin 23, it is used for realizing being connected of push rod 5 and crank pin 23 to lead to the groove, crank pin 23 can drive push rod 5 and carry out reciprocating motion along valve body 1. One end and the piston 6 of push rod 5 are connected, and the cross-section radius of piston 6 is from the one end that is close to push rod 5 to the one end of keeping away from push rod 5 crescent, makes things convenient for piston 6 to close the inside wall top of valve body 1 and seals, and leakproofness between piston 6 and the valve body 1 when guaranteeing the valve and closing. One end of the piston 6, which is far away from the push rod 5, is connected with a limiting edge 7, and the limiting edge 7 is used for increasing the sealing property when the piston 6 is connected with the valve body 1.

One end of the valve body 1 close to the piston 6 is provided with a flaring section, and one end of the flaring section close to the crankshaft 2 is provided with a first chute, a limiting groove and a second chute which are adjacently arranged. The section radius of first chute is from being close to the one end of spacing groove is kept away from the one end of spacing groove is crescent, and clearance size between valve body 1 and the piston 6 when piston 6 carries out reciprocating motion can be changed to first chute, and then the size of rivers can be adjusted. The structure phase-match of spacing groove and spacing limit 7, the spacing groove is used for using with spacing limit 7 cooperation, makes spacing limit 7 can improve piston 6's leakproofness. The chute is matched with the piston 6 in structure, a sealing ring 8 positioned on the piston 6 is further arranged between the chute and the piston 6, and the sealing ring 8 is used for increasing the sealing performance between the piston 6 and the valve body 1 when the valve is closed. One end of the flaring section, which is far away from the crankshaft 2, is connected with a first joint 10 through a first pressing nut 9, one end of the valve body 1, which is far away from the flaring section, is connected with a second joint 12 through a second pressing nut 11, O-shaped rings are arranged between the first joint 10 and the valve body 1 and between the second joint 12 and the valve body 1, and the O-shaped rings can improve the sealing performance of the valve body 1.

During the use, twist grip 4, handle 4 drive bent axle 2 and rotate, and crank pin 23 on bent axle 2 drives push rod 5 and carries out reciprocating motion along the central line of valve body 1, and push rod 5 drives piston 6 and carries out reciprocating motion, and then realizes the switch of valve and the control of rivers size.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.

Claims

1. A crankshaft piston valve characterized in that: the crank arm of the crankshaft is connected with a connecting hole in the valve body through a shaft sleeve, a main journal at one end of the crankshaft is connected with a handle positioned on the outer side of the valve body, a crank pin at the other end of the crankshaft is connected with a piston assembly positioned in the valve body, the piston assembly comprises a push rod connected with the crank pin, the push rod is parallel to the center line of the valve body, one end of the push rod is connected with a piston, the section radius of the piston is gradually increased from one end close to the push rod to one end far away from the push rod, and one end, far away from the push rod, of the piston is connected with a limiting edge;

2. The crankshaft piston valve of claim 1, wherein: o-shaped rings are arranged between the first connector and the valve body, between the second connector and the valve body and between the crankshaft and the shaft sleeve.

3. The crankshaft piston valve of claim 2, wherein: the push rod is provided with a through groove connected with the crank pin, the long edge of the through groove is perpendicular to the central line of the valve body, and the short edge of the through groove is equal to the diameter of the crank pin.