CN218564062U - Hydraulic cylinder vertical U-shaped clamp structure - Google Patents
Hydraulic cylinder vertical U-shaped clamp structure Download PDFInfo
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- CN218564062U CN218564062U CN202222450785.5U CN202222450785U CN218564062U CN 218564062 U CN218564062 U CN 218564062U CN 202222450785 U CN202222450785 U CN 202222450785U CN 218564062 U CN218564062 U CN 218564062U
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Abstract
A vertically-arranged U-shaped clamp structure of a hydraulic cylinder belongs to the technical field of automobile parts. The utility model aims at additionally arranging an oil supply mechanism in the U clamp of the hydraulic cylinder, thereby being capable of assisting the hydraulic cylinder in working to vertically arrange the U clamp structure. The utility model discloses the inside hydro-cylinder lower extreme that opens of cylinder lower extreme has hydro-cylinder lower extreme hole enlargement chamber, and the internal diameter in hydro-cylinder lower extreme hole enlargement chamber is greater than hydro-cylinder inner chamber's internal diameter, and the outside cover that the piston rod bottom is located hydro-cylinder lower extreme hole enlargement intracavity part is equipped with the piston, and the piston external diameter closely cooperates with hydro-cylinder lower extreme hole enlargement intracavity wall. The utility model discloses simple structure, simple to operate, through the control to when the income oil return, the effectual velocity of flow when having controlled oil feed and oil return in the pneumatic cylinder to make lifting and decline of pneumatic cylinder piston all can be steady.
Description
Technical Field
The utility model belongs to the technical field of automobile parts.
Background
The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems. The end parts of the cylinder body and the piston rod of the hydraulic cylinder are generally called U-shaped clamps, and the conventional U-shaped clamps are only one connecting mechanism.
Disclosure of Invention
The utility model aims at additionally arranging an oil supply mechanism in the U clamp of the hydraulic cylinder, thereby being capable of assisting the hydraulic cylinder in working to vertically arrange the U clamp structure.
The utility model comprises a cylinder barrel, a lower connecting ring of the oil cylinder, an inner cavity of the oil cylinder and a piston rod,
(1) an oil cylinder lower end diameter expanding cavity is formed in the lower end of the cylinder barrel, the inner diameter of the oil cylinder lower end diameter expanding cavity is larger than that of an oil cylinder inner cavity, a piston is sleeved outside the part, located in the oil cylinder lower end diameter expanding cavity, of the bottom end of the piston rod, and the outer diameter of the piston is tightly matched with the inner wall of the oil cylinder lower end diameter expanding cavity;
(2) the lower end of the cylinder barrel is connected with the upper end of the lower connecting ring of the oil cylinder through an oil circuit system, and the specific structure of the oil circuit system is as follows: a guide piston motion cavity is arranged in the oil way system, two ends of the guide piston motion cavity are plugged by screw plugs, a guide piston is arranged in the guide piston motion cavity, an O-shaped sealing ring is sleeved outside the guide piston and divides the guide piston motion cavity into a guide piston unlocking cavity and a guide piston locking cavity, the guide piston locking cavity is communicated with the one-way valve cavity through a guide piston thimble cavity, a guide piston thimble fixedly arranged at the front end of the guide piston is positioned in the guide piston thimble cavity, the inner diameter of the guide piston thimble cavity is smaller than that of the one-way valve cavity, a one-way valve steel ball is arranged in the one-way valve cavity, and a one-way valve spring is arranged between the one-way valve steel ball and the screw plugs;
(3) the lifting pipe joint is communicated with the guide piston thimble cavity through a lifting pipe joint oil inlet hole;
(4) the descending pipe joint is communicated with the lifting unlocking oil way and the descending oil pipe through a pump body descending oil way, and the lifting unlocking oil way is communicated with the guide piston unlocking cavity;
(5) the one-way valve cavity is communicated with the diameter-expanding cavity at the lower end of the oil cylinder through a lifting oil inlet oil way.
The utility model discloses simple structure, simple to operate, through the control to when the income oil return, the effectual velocity of flow when having controlled oil feed and oil return in the pneumatic cylinder to make lifting and decline of pneumatic cylinder piston all can be steady.
Drawings
FIG. 1 is a schematic diagram of the mechanism of the present invention;
fig. 2 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of fig. 1 according to the present invention;
fig. 3 is a cross-sectional view of fig. 2, taken along line C-C, in accordance with the present invention;
fig. 4 is an enlarged schematic view of a portion D of fig. 3 according to the present invention;
fig. 5 is a sectional view of fig. 1 taken along line B-B.
Detailed Description
The utility model discloses a go-between 3, hydro-cylinder inner chamber 11, piston rod 6 under cylinder 1, the hydro-cylinder, this part is the mechanism that current pneumatic cylinder exists promptly, the utility model discloses an improved portion has the relation of connection rather than.
The following describes the modifications of the present invention:
(1) improvement of the cylinder barrel inside and the bottom of the piston rod: an oil cylinder lower end diameter expanding cavity 8 is formed in the lower end of the cylinder barrel 1, the inner diameter of the oil cylinder lower end diameter expanding cavity 8 is larger than that of an oil cylinder inner cavity 11, a piston 7 is sleeved outside the portion, located in the oil cylinder lower end diameter expanding cavity 8, of the bottom end of the piston rod 6, and the outer diameter of the piston 7 is tightly matched with the inner wall of the oil cylinder lower end diameter expanding cavity 8. Because the outer diameter of the piston 7 is closely matched with the inner wall of the diameter expanding cavity 8 at the lower end of the oil cylinder, the piston rod 6 drives the piston 7 to reciprocate up and down and is limited in the diameter expanding cavity 8 at the lower end of the oil cylinder.
(2) Added oil system part: the lower end of the cylinder barrel 1 is connected with the upper end of the lower connecting ring 3 of the oil cylinder through an oil path system 5, and the specific structure of the oil path system 5 is as follows: a guide piston motion cavity 9 is formed in the oil way system 5, two ends of the guide piston motion cavity 9 are plugged by screw plugs, a guide piston 16 is arranged in the guide piston motion cavity 9, an O-shaped sealing ring 20 is sleeved outside the guide piston 16, the guide piston motion cavity 9 is divided into a guide piston unlocking cavity 15 and a guide piston locking cavity 17, the guide piston locking cavity 17 is communicated with a one-way valve cavity 22 through a guide piston thimble cavity 24, a guide piston thimble 21 fixedly installed at the front end of the guide piston 16 is positioned in the guide piston thimble cavity 24, the inner diameter of the guide piston thimble cavity 24 is smaller than that of the one-way valve cavity 22, a one-way valve steel ball 19 is arranged in the one-way valve cavity 22, and a one-way valve spring 23 is arranged between the one-way valve steel ball 19 and the screw plugs; the oil path system 5 is a connecting block, is used for connecting the cylinder barrel 1 and the lower connecting ring 3 of the oil cylinder by visual inspection at the outside, and is internally provided with an oil path. The guide piston movement cavity 9 is opened into a through cavity, then the structure that the two ends are plugged by screw plugs is convenient for processing and maintenance, and also convenient for putting internal parts into the through cavity, and the screw plugs at the two ends can be conveniently detached and sealed.
(3) The lift coupling 2 communicates with the pilot piston thimble chamber 24 through the lift coupling inlet port 18.
(4) The descending pipe joint 4 is communicated with a lifting unlocking oil way 13 and a descending oil pipe 10 through a pump body descending oil way 12, and the lifting unlocking oil way 13 is communicated with a guide piston unlocking cavity 15.
(5) The one-way valve cavity 22 is communicated with the oil cylinder lower end diameter expanding cavity 8 through the lifting oil inlet channel 14.
The following detailed description explains the working process of the present invention:
1. and (3) lifting process:
when lifting, hydraulic oil builds pressure at the lifting pipe joint 2 and the descending pipe joint 4 simultaneously, the hydraulic oil enters the lifting pipe joint oil inlet hole 18 from the lifting pipe joint 2, the one-way valve steel ball 19 is pushed to move backwards, the one-way valve spring 23 contracts, the hydraulic oil enters the one-way valve cavity 22 and enters the oil cylinder lower end diameter expanding cavity 8 along the lifting oil inlet oil path 14, the piston 7 is pushed to drive the piston rod 6 to move upwards in the cylinder barrel 1, and the hydraulic oil in the oil cylinder inner cavity 11 passes through the pump body descending oil path 12 through the descending oil chamber 10 and returns to the oil tank along the descending pipe joint 4.
2. And (3) a descending process:
when the hydraulic oil descends, the hydraulic oil enters the descending pipe joint 4, a part of the hydraulic oil passes through the pump body descending oil path 12, passes through the descending oil chamber 10, enters the oil cylinder inner chamber 11, pushes the piston 7 to drive the piston rod 6 to move downwards in the cylinder barrel 1, the other part of the hydraulic oil passes through the lifting unlocking oil path 13, enters the guide piston unlocking chamber 15, pushes the guide piston 16 and the O-shaped sealing ring to move towards the guide piston locking chamber 17, the guide piston thimble pushes the check valve steel ball 19 backwards 21, the check valve spring 23 contracts, the whole check valve is opened, the hydraulic oil in the diameter expanding chamber 8 at the lower end of the oil cylinder enters the check valve chamber 22 through the lifting oil inlet oil path 14, enters the lifting pipe joint 2 along the lifting pipe joint oil inlet 18, and returns to the oil tank.
Claims (1)
1. The utility model provides a pneumatic cylinder erects puts U and presss from both sides structure, includes cylinder (1), hydro-cylinder lower connecting ring (3), hydro-cylinder inner chamber (11), piston rod (6), its characterized in that:
(1) an oil cylinder lower end diameter expanding cavity (8) is formed in the lower end of the cylinder barrel (1), the inner diameter of the oil cylinder lower end diameter expanding cavity (8) is larger than that of an oil cylinder inner cavity (11), a piston (7) is sleeved outside the inner part, located in the oil cylinder lower end diameter expanding cavity (8), of the bottom end of the piston rod (6), and the outer diameter of the piston (7) is tightly matched with the inner wall of the oil cylinder lower end diameter expanding cavity (8);
(2) connect through oil piping system (5) between cylinder (1) lower extreme and hydro-cylinder lower connecting ring (3) upper end, the concrete structure of oil piping system (5) is: a guide piston motion cavity (9) is formed in an oil way system (5), two ends of the guide piston motion cavity (9) are plugged by screw plugs, a guide piston (16) is arranged in the guide piston motion cavity (9), an O-shaped sealing ring (20) is sleeved outside the guide piston (16), the guide piston motion cavity (9) is divided into a guide piston unlocking cavity (15) and a guide piston locking cavity (17), the guide piston locking cavity (17) is communicated with a one-way valve cavity (22) through a guide piston thimble cavity (24), a guide piston thimble (21) fixedly installed at the front end of the guide piston (16) is positioned in the guide piston thimble cavity (24), the inner diameter of the guide piston thimble cavity (24) is smaller than that of the one-way valve cavity (22), a one-way valve steel ball (19) is arranged in the one-way valve cavity (22), and a one-way valve spring (23) is arranged between the one-way valve steel ball (19) and the screw plugs;
(3) the lifting pipe joint (2) is communicated with the guide piston thimble cavity (24) through a lifting joint oil inlet hole (18);
(4) the descending pipe joint (4) is communicated with a lifting unlocking oil way (13) and a descending oil pipe (10) through a pump body descending oil way (12), and the lifting unlocking oil way (13) is communicated with a guide piston unlocking cavity (15);
(5) the one-way valve cavity (22) is communicated with the diameter expanding cavity (8) at the lower end of the oil cylinder through a lifting oil inlet oil way (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222450785.5U CN218564062U (en) | 2022-09-16 | 2022-09-16 | Hydraulic cylinder vertical U-shaped clamp structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222450785.5U CN218564062U (en) | 2022-09-16 | 2022-09-16 | Hydraulic cylinder vertical U-shaped clamp structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218564062U true CN218564062U (en) | 2023-03-03 |
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ID=85312467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222450785.5U Active CN218564062U (en) | 2022-09-16 | 2022-09-16 | Hydraulic cylinder vertical U-shaped clamp structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218564062U (en) |
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2022
- 2022-09-16 CN CN202222450785.5U patent/CN218564062U/en active Active
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