CN212615681U - Mechanical control hydraulic device - Google Patents
Mechanical control hydraulic device Download PDFInfo
- Publication number
- CN212615681U CN212615681U CN202021142313.8U CN202021142313U CN212615681U CN 212615681 U CN212615681 U CN 212615681U CN 202021142313 U CN202021142313 U CN 202021142313U CN 212615681 U CN212615681 U CN 212615681U
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- valve core
- lock
- main valve
- hydraulic
- steel ball
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Abstract
The utility model discloses a mechanical control hydraulic means, including main valve core and hydraulic pressure lock, set up the oblique angle on the main valve core, the hydraulic pressure lock includes the knock pin, knock pin and oblique angle sliding connection, and the knock pin reciprocates along its axial. The hydraulic lock further comprises a steel ball, a valve core, a lock cap, a spring and a limiting sleeve, wherein the spring and the steel ball are arranged in the valve core, the ejector pin is connected with the steel ball, one end of the spring is connected with the steel ball, the other end of the spring is connected with the lock cap, and the lock cap is connected with the limiting sleeve. And the distance between the ejector pin and the steel ball is smaller than that between the ejector pin and the hydraulic lock valve core in the middle position. The utility model discloses cancel control piston, through adding the oblique angle on main valve core, when main valve core switching-over, in time open one-way hydraulic pressure lock, for the hydraulic pressure lock through control piston control, the structure is simple more reliable to can install at the hydraulic fluid port vertically on, save space more.
Description
Technical Field
The utility model belongs to the hydraulic means field specifically is a mechanical control hydraulic means.
Background
The pilot-controlled one-way valve is also called a hydraulic operation one-way valve or a one-way locking valve, and a pilot-controlled part is added on a common one-way valve to form self-locking. The existing one-way hydraulic lock generally pushes a piston to control a valve core of the hydraulic lock to be opened reversely through pressure oil, transmission is not reliable enough, once the hydraulic lock is not opened timely, a pressure holding phenomenon can be caused, and potential safety hazards are caused; structurally, the existing one-way hydraulic lock needs to occupy a large space, and is not suitable for being used on a multi-way valve with a compact structure.
SUMMERY OF THE UTILITY MODEL
The purpose of the invention is as follows: in order to overcome the deficiencies in the prior art, the utility model aims at providing a do not rely on hydraulic drive, the structure is simple more reliable, can install, save space's mechanical control hydraulic means more in the hydraulic fluid port longitudinal.
The technical scheme is as follows: a mechanical control hydraulic means, including main valve core and hydraulic pressure lock, set up the oblique angle on the main valve core, the hydraulic pressure lock includes the knock pin, knock pin and oblique angle sliding connection, the knock pin reciprocates along its axial.
The hydraulic lock further comprises a steel ball, a valve core, a lock cap, a spring and a limiting sleeve, wherein the spring and the steel ball are arranged in the valve core, one end of the spring is connected with the steel ball, the other end of the spring is connected with the lock cap, and the lock cap is connected with the limiting sleeve. The distance between the ejector pin and the steel ball is smaller than the distance between the ejector pin and the valve core of the hydraulic lock. The limiting sleeve limits the stroke of the valve core of the hydraulic lock. The stroke of the hydraulic lock valve core is determined by the position of the lock cap, the lock cap is provided with the oil inlet through threads, and the position of the lock cap is determined by adding the limiting sleeve because the characteristic position of the threads is not fixed, so that the stroke of the hydraulic lock valve core is ensured.
The main valve core and the hydraulic lock are perpendicular to each other. The hydraulic lock is arranged in the working oil port of the main valve body.
One end of the main valve core extends out of the main valve body and is fixed by a pressing sheet. The pressing sheet is fixed with the main valve body through a hexagon socket head cap screw. An O-shaped ring is arranged at the joint of the main valve core and the pressing sheet. A tetrafluoro check ring is arranged between the O-shaped ring and the pressing sheet.
The working principle is as follows: when the main valve core of the multi-way valve is pushed inwards, high-pressure oil directly opens the hydraulic lock valve core, an oil port B (with a hydraulic lock oil port) discharges oil, and an oil port A returns oil to form closed oil path; the main valve core returns to the middle position, and the oil port B performs pressure maintaining due to the existence of the hydraulic lock; when the main valve core is pulled outwards, the oblique angle of the main valve core pushes the ejector pin to push the steel ball firstly, so that the pressure of the oil port B is unloaded, then the ejector pin pushes the hydraulic lock valve core to be opened along with the displacement of the main valve core, so that the oil port B is connected with return oil, and the oil port A discharges oil to form closed oil path.
Has the advantages that: compared with the prior art, the utility model, have following characteristics: the control piston is cancelled, the one-way hydraulic lock is opened in time when the main valve core is reversed by adding the oblique angle on the main valve core, the structure is simpler and more reliable compared with the hydraulic lock controlled by the control piston, and the hydraulic lock can be installed in the oil port in the longitudinal direction, so that the space is saved more.
Drawings
Fig. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the plane A-A of the present invention;
fig. 3 is a schematic structural diagram of the hydraulic lock 2 of the present invention;
FIG. 4 is a schematic diagram of the main valve element of the present invention pushed inward;
fig. 5 is a schematic structural view of the main valve element of the present invention drawn outward.
Detailed Description
The directions shown in the drawings of the specification are up, down, left and right.
As shown in FIGS. 1-2, the main valve core 1 is provided with an oblique angle 3, and the bottom of the hydraulic lock 2 slides along the oblique angle 3. Main spool 1 and hydraulic lock 2 are perpendicular to each other. The hydraulic lock 2 is arranged in the main valve body 4, and the right end of the main valve core 1 extends out of the main valve body 4 and is fixed by a pressing sheet 5 and an inner hexagon screw 6. The joint of the main valve core 1 and the pressing sheet 5 is sequentially provided with an O-shaped ring 7 and a tetrafluoro retaining ring 8 from left to right.
Referring to fig. 3, the knock pin 201 of the hydraulic lock 2 is fixedly connected with a steel ball 202, the steel ball 202 presses the free end of a spring 205, and the other end of the spring 205 is fixed on a lock cap 204. The spring 205 and the steel ball 202 are both arranged in the valve core 203, and a position limiting sleeve 206 is arranged below the lock cap 204 and used for limiting the stroke of the valve core of the hydraulic lock. As shown in fig. 4 to 5, the bottom end of the knock pin 201 is in contact with the bevel 3, and can move up and down along the axial direction of the knock pin 201 when the main valve element 1 moves laterally.
Claims (9)
1. A mechanical control hydraulic device is characterized in that: the hydraulic control valve comprises a main valve core (1) and a hydraulic lock (2), wherein an oblique angle (3) is arranged on the main valve core (1), the hydraulic lock (2) comprises a top pin (201), the top pin (201) is in sliding connection with the oblique angle (3), and the top pin (201) moves up and down along the axial direction of the top pin.
2. A mechanically controlled hydraulic device according to claim 1, characterized in that: the hydraulic lock (2) further comprises a steel ball (202), a hydraulic lock valve core (203), a lock cap (204), a spring (205) and a limiting sleeve (206), the spring (205) and the steel ball (202) are arranged in the hydraulic lock valve core (203), the ejector pin (201) is connected with the steel ball (202), one end of the spring (205) is connected with the steel ball (202), the other end of the spring is connected with the lock cap (204), and the lock cap (204) is connected with the limiting sleeve (206).
3. A mechanically controlled hydraulic device according to claim 2, characterized in that: the distance between the ejector pin (201) and the steel ball (202) is smaller than the distance between the ejector pin (201) and the hydraulic lock valve core (203).
4. A mechanically controlled hydraulic device according to claim 1, characterized in that: the main valve core (1) and the hydraulic lock (2) are perpendicular to each other.
5. A mechanically controlled hydraulic device according to claim 1, characterized in that: the hydraulic lock (2) is arranged in the main valve body (4).
6. A mechanically controlled hydraulic device according to claim 1, characterized in that: one end of the main valve core (1) extends out of the main valve body (4) and is fixed by a pressing sheet (5).
7. A mechanically controlled hydraulic device according to claim 6, characterized in that: the pressing sheet (5) is fixed with the main valve body (4) through an inner hexagon screw (6).
8. A mechanically controlled hydraulic device according to claim 6, characterized in that: an O-shaped ring (7) is arranged at the joint of the main valve core (1) and the pressing sheet (5).
9. A mechanically controlled hydraulic device according to claim 8, wherein: and a tetrafluoro check ring (8) is arranged between the O-shaped ring (7) and the pressing sheet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021142313.8U CN212615681U (en) | 2020-06-18 | 2020-06-18 | Mechanical control hydraulic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021142313.8U CN212615681U (en) | 2020-06-18 | 2020-06-18 | Mechanical control hydraulic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212615681U true CN212615681U (en) | 2021-02-26 |
Family
ID=74755525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021142313.8U Active CN212615681U (en) | 2020-06-18 | 2020-06-18 | Mechanical control hydraulic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212615681U (en) |
-
2020
- 2020-06-18 CN CN202021142313.8U patent/CN212615681U/en active Active
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