CN215293045U - Single-control double-unlocking hydraulic lock - Google Patents
Single-control double-unlocking hydraulic lock Download PDFInfo
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- CN215293045U CN215293045U CN202122177656.9U CN202122177656U CN215293045U CN 215293045 U CN215293045 U CN 215293045U CN 202122177656 U CN202122177656 U CN 202122177656U CN 215293045 U CN215293045 U CN 215293045U
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Abstract
The utility model relates to a single control double-release hydraulic lock, include: the valve body, two check valves and two plungers, the check valve includes disk seat, case and compression spring, case mobilizable setting in the disk seat inner chamber and with the closed angle sealing fit of disk seat, the gliding setting of two plungers is in the valve body, the plunger both ends all have the plunger pole, and be provided with the control in the middle of the valve body main bore and hold the chamber, through the size of control appearance chamber pressure value, make the plunger pole slide and act on the case, make the check valve be in and open or the closed state. The utility model discloses a be two with the plunger split, through the rising or the reduction of control appearance chamber pressure value, make two plungers remove or reset under the effect of appearance chamber pressure and spring force to both ends respectively, further realized still possessing the function of floating when the hydro-cylinder possesses the locking operating mode.
Description
Technical Field
The utility model relates to a hydraulic pressure technical application field, concretely relates to hydraulic pressure lock is separated to single-control pair.
Background
At present, a hydraulic lock plays a role in locking an oil cylinder in an oil cylinder working condition, and when the oil cylinder needs to be lowered or a locking action is released, the hydraulic lock can be unlocked through control oil. One movement direction of the locking oil cylinder needs one hydraulic lock, two movement directions of the locking oil cylinder need two hydraulic locks, and at the moment, one bidirectional hydraulic lock is generally used for realizing the function. The conventional bidirectional hydraulic lock has a structure as shown in fig. 1, and the conventional bidirectional hydraulic lock has only one plunger, and can control the opening and closing of the third oil port and the fourth oil port, and although the closing of the third oil port and the fourth oil port can be controlled simultaneously, the opening of the third oil port and the opening of the fourth oil port cannot be controlled simultaneously, and the floating requirement of the oil cylinder cannot be met.
Therefore, how to realize that the oil cylinder has the function of oil cylinder floating while having the locking working condition is the technical problem which needs to be solved urgently at the present stage.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that how to realize still possessing the unsteady function of hydro-cylinder when the hydro-cylinder possesses the locking operating mode that exists among the prior art, the utility model provides a single-control double-release hydraulic pressure lock.
The utility model provides a technical scheme is:
a single control dual release hydraulic lock comprising: the valve body is provided with a first valve cavity, a second valve cavity, a first oil port and a second oil port which are coaxially arranged, the first oil port and the second oil port are used for being communicated with an external oil supply device, and a third oil port and a fourth oil port are used for being connected with an oil cylinder, wherein the first oil port and the third oil port are communicated with the first valve cavity, and the second oil port and the fourth oil port are communicated with the second valve cavity; and
the two one-way valves are respectively arranged in the first valve cavity and the second valve cavity and comprise a plug, a valve seat, a spring seat, a valve core and a pressure spring, wherein the valve core can be movably arranged in the inner cavity of the valve seat and is in sealing fit with the sharp corner of the valve seat;
the single-control double-unlocking hydraulic lock further comprises: the two plungers are slidably arranged in the valve body and limited through a steel wire check ring, the first valve cavity is isolated from the second valve cavity, two ends of each plunger are respectively provided with a plunger rod, a control containing cavity is arranged in the middle of a main hole of the valve body, the plunger rods can slide along with the plungers and act on a valve core of the one-way valve by controlling the pressure value of the containing cavity, and the one-way valve is in an opening or closing state.
Further, the on or off state includes: when the pressure of the control cavity rises, the two plungers move towards two ends respectively to push the valve core to leave the valve seat, and the third oil port to the first oil port and the fourth oil port to the second oil port are controlled to be opened simultaneously, and
when the pressure of the control cavity is reduced, the valve core is reset to the valve seat under the action of the cavity pressure of the third oil port or the fourth oil port and the action of the pressure spring force, and the third oil port to the first oil port and the fourth oil port to the second oil port are controlled to be closed simultaneously.
Further, the third oil port to the first oil port and the fourth oil port to the second oil port are simultaneously opened to realize the floating of the oil cylinder, and the third oil port to the first oil port and the fourth oil port to the second oil port are simultaneously closed to realize the locking of the oil cylinder.
Further, the control pressure for controlling the opening or closing of the third oil port and the fourth oil port is related to the pressure of the third oil port and the fourth oil port and the spring force of the pressure spring, and is also related to the stressed area of the plunger and the stressed area of the valve core.
Furthermore, the plunger is of a T-shaped structure and is integrally formed with the plunger rod.
Further, the plug and the valve seat are both sleeved with sealing elements.
Further, the seal includes an O-ring and a retainer ring.
Furthermore, the valve core is of a conical valve core structure, and the cone angle of the conical valve core structure is matched with the sharp angle of the valve seat.
Furthermore, the end part of the plug is also provided with a counter bore for clamping one end of the pressure spring, and the pressure spring is clamped in the counter bore and is contacted with the spring seat.
Furthermore, the bottom of the counter bore is a plane, and the diameter of the counter bore is matched with that of the pressure spring.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a two hydraulic pressure locks that separate of single-control, include: the valve body, the valve body has first valve pocket, the second valve pocket of coaxial setting and is used for communicateing outside oil supply unit's first hydraulic fluid port, second hydraulic fluid port and is used for connecting third hydraulic fluid port, the fourth hydraulic fluid port of hydro-cylinder, wherein, first hydraulic fluid port, third hydraulic fluid port are linked together with first valve pocket, second hydraulic fluid port, fourth hydraulic fluid port are linked together with the second valve pocket to and two check valves are located respectively in first valve pocket and the second valve pocket, the check valve includes plug, disk seat, spring holder, case and pressure spring, wherein, the case can set up movably in the inner chamber of disk seat and with the closed angle of disk seat is sealed to be cooperated, the dual hydraulic lock that solves of single accuse still includes: the two plungers are slidably arranged in the valve body and limited through a steel wire check ring, the first valve cavity is isolated from the second valve cavity, two ends of each plunger are respectively provided with a plunger rod, a control containing cavity is arranged in the middle of a main hole of the valve body, and the plunger rods can slide along with the plungers and act on a valve core of the one-way valve through the pressure value of the control containing cavity, so that the one-way valve is in an open state or a closed state. The utility model provides a two hydraulic pressure locks that separate of single-control, through being two with the plunger split, increase a control and hold chamber and steel wire retaining ring, when the pressure that the control held the chamber risees, two plungers move to both ends respectively, promote the valve core and leave the disk seat, the free flow of third hydraulic fluid port to first hydraulic fluid port and fourth hydraulic fluid port to second hydraulic fluid port has been realized, thereby the unsteady of hydro-cylinder has been realized, when the pressure that the control held the chamber reduces, the case is under the chamber pressure of holding of third hydraulic fluid port or fourth hydraulic fluid port and pressure spring's spring force effect, reset to the disk seat, form the closure that does not have the leakage, thereby realize the locking function that third hydraulic fluid port and fourth hydraulic fluid port hold the chamber, further realized still possessing the unsteady functional requirement of hydro-cylinder when the hydro-cylinder possesses the locking operating mode.
In order to make the technical means of the present invention more comprehensible, embodiments consistent with the present invention may be implemented, and in order to make the above and other objects, features, and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a conventional bidirectional hydraulic lock;
FIG. 2 is a schematic diagram of the single-control double-unlocking hydraulic lock of the present invention;
wherein: 1-a valve body; 101-a first valve chamber; 102-a second valve chamber; 103-a third oil port; 104-a fourth oil port; 105-a first oil port; 106-a second oil port; 2-a plunger; 201-plunger rod; 3-valve seat; 4-spring seats; 5-valve core; 6-a pressure spring; 7-plug screwing; 8-counter bore; 9-a first retainer ring; 10-a first O-ring; 11-a second collar; 12-a second O-ring; 13-steel wire retainer ring; 14-control volume.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The hydraulic lock plays the effect of locking hydro-cylinder in the hydro-cylinder operating mode, when the hydro-cylinder needs to be transferred or relieve the locking action, can make the hydraulic lock unblock through control oil, a direction of motion of locking hydro-cylinder needs a hydraulic lock, and two directions of motion of locking hydro-cylinder need two hydraulic locks, generally can use a two-way hydraulic lock to realize this function this moment. The conventional bidirectional hydraulic lock has only one plunger 2, and can control the opening and closing of the third oil port 103 and the fourth oil port 104, and although the closing of the third oil port 103 and the fourth oil port 104 can be simultaneously controlled, the opening of the third oil port 103 and the fourth oil port 104 cannot be simultaneously controlled, and the floating requirement of the oil cylinder cannot be realized. Therefore, how to realize that the oil cylinder has the function of oil cylinder floating while having the locking working condition is the technical problem which needs to be solved urgently at the present stage.
In order to solve the above problem, the utility model provides a single-control double-unlocking hydraulic lock, fig. 1 is the two-way hydraulic lock schematic structure of tradition, and fig. 2 is the utility model discloses single-control double-unlocking hydraulic lock schematic structure.
As shown in fig. 1-2, the utility model provides a single control double-release hydraulic lock, include: the valve body 1 is of a rectangular structure, and a first valve cavity 101, a second valve cavity 102, a first oil port 105 and a second oil port 106 which are used for communicating an external oil supply device, a third oil port 103 and a fourth oil port 104 which are used for connecting an oil cylinder are coaxially arranged in the valve body 1, wherein the first oil port 105 and the third oil port 103 are communicated with the first valve cavity 101, and the second oil port 106 and the fourth oil port 104 are communicated with the second valve cavity 102; and
the two one-way valves are respectively arranged in the first valve cavity 101 and the second valve cavity 102 and comprise a plug 7, a valve seat 3, a spring seat 4, a valve core 5 and a pressure spring 6, wherein the valve seat 3 is provided with an inner cavity, the end part of the valve seat 3 is also provided with a sharp corner 302, and the valve core 5 can be movably arranged in the inner cavity of the valve seat 3 and is in sealing fit with the sharp corner 302 of the valve seat 3; the single-control double-unlocking hydraulic lock also comprises: the two plungers 2 are slidably arranged in the rectangular structure of the valve body 1 and limited by the steel wire retainer ring 13, the first valve cavity 101 is isolated from the second valve cavity 102, the two ends of each plunger 2 are respectively provided with one plunger rod 201, the lower end of the middle of the valve body 1 is provided with a main hole, a control accommodating cavity 14 is arranged in the middle of the main hole, and the plunger rods 201 can slide along with the plungers 2 and act on the valve cores 5 of the one-way valves by controlling the pressure value of the accommodating cavity 14, so that the one-way valves are in an opening or closing state.
Furthermore, the single-control double-release hydraulic lock provided by the utility model has the advantages that the plunger 2 is divided into two parts, the control containing cavity 14 and the steel wire retainer ring 13 are added, when the pressure of the control cavity 14 rises, the two plungers 2 respectively move towards the two ends under the action of the pressure, the valve core 5 is pushed to enable the valve core 5 to leave in the inner cavity of the valve seat 3, the free flow from the third oil port 103 to the first oil port 105 and from the fourth oil port 104 to the second oil port 106 is realized, thereby realizing the floating of the oil cylinder, when the pressure of the control cavity 14 is reduced, the valve core 5 is reset to the inner cavity of the valve seat 3 under the action of the cavity pressure of the third oil port 103 or the fourth oil port 104 and the spring force of the pressure spring 6 to form the non-leakage seal, therefore, the locking function of the cavities of the third oil port 103 and the fourth oil port 104 is realized, and the functional requirement of oil cylinder floating is further met when the oil cylinder has a locking working condition.
It should be noted that the on or off state includes: when the pressure of the control chamber 14 rises, the two plungers 2 move towards both ends, respectively, push the valve element 5 away from the valve seat 3, control the third port 103 to the first port 105 and the fourth port 104 to the second port 106 to open simultaneously, and
when the pressure of the control chamber 14 is reduced, the valve element 5 is reset to the valve seat 3 under the chamber pressure of the third oil port 103 or the fourth oil port 104 and the spring force of the pressure spring 6, and the third oil port 103 to the first oil port 105 and the fourth oil port 104 to the second oil port 106 are controlled to be closed simultaneously. The third port 103 to the first port 105 and the fourth port 104 to the second port 106 are simultaneously opened to realize the floating of the cylinder, and the third port 103 to the first port 105 and the fourth port 104 to the second port 106 are simultaneously closed to realize the locking of the cylinder. The control pressure for controlling the opening or closing of the third oil port 103 and the fourth oil port 104 is related to the pressure of the third oil port 103 and the fourth oil port 104 and the spring force of the pressure spring 6, and is also related to the force-bearing area of the plunger 2 and the force-bearing area of the valve core 5.
Further, plunger 2 is T font structure, with plunger rod 201 integrated into one piece, plug 7 and disk seat 3 all overlap and are equipped with the sealing member, and the sealing member includes O shape circle and retaining ring, and O shape circle includes: a first O-ring 10 and a second O-ring 12, the retainer comprising: the first retaining ring 9 and the second retaining ring 11, it should be noted that the valve core 5 is a conical valve core structure, and the taper angle of the conical valve core structure is matched with the sharp corner 302 of the valve seat 3. The end part of the plug 7 is also provided with a counter bore 8 for clamping one end of the pressure spring 6, the pressure spring 6 is clamped in the counter bore 8 and is contacted with the spring seat 4, the bottom of the counter bore 8 is a plane, and the diameter of the counter bore is matched with that of the pressure spring 6.
It should explain once more, in order to realize the function of floating, the utility model discloses be two with the 2 splits of plunger, increase a control and hold chamber 14 and steel wire retaining ring 13, when the pressure that control held chamber 14 risees, two plungers 2 remove to both ends respectively, promote the valve core 5 and leave disk seat 3, realized the free flow of third hydraulic fluid port 103 to first hydraulic fluid port 105 and fourth hydraulic fluid port 104 to second hydraulic fluid port 106 to the unsteady of hydro-cylinder has been realized.
Furthermore, the two plungers 2 are limited through the steel wire retainer ring 13, and limit states of the plungers 2 are limited, so that normal work of the single-control double-unlocking hydraulic lock is guaranteed, when pressure of the control accommodating cavity 14 is reduced, the valve core 5 resets to the valve seat 3 under the pressure of the accommodating cavity of the third oil port 103 or the fourth oil port 104 and the spring force of the pressure spring 6, a leak-free seal is formed, a locking function of the accommodating cavity of the third oil port 103 and the fourth oil port 104 is achieved, and the functional requirement that the oil cylinder floats when the oil cylinder has a locking working condition is further met.
It should be noted that the values of the opening pressure and the closing pressure of the valve element 5 are not fixed, and are not unique, and the valve element 5 is opened when the pressure of the control accommodating chamber 14 is increased to the opening pressure and the valve element 5 is closed when the pressure of the control accommodating chamber 14 is decreased to the closing pressure, depending on the load of the load port and the spring force of the pressure spring 6.
The utility model provides an one-way locking function mainly is constituteed through disk seat 3, case 5, compression spring 6, plug 7 and sealing member, and this structure is only one example of one-way locking function, and this one-way locking function can also be realized through other structures except using this method.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely 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," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that the above only illustrates a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the scope of the claims of the present invention pending from the application.
Claims (10)
1. A single control dual release hydraulic lock comprising: the oil supply valve comprises a valve body (1), wherein the valve body (1) is provided with a first valve cavity (101), a second valve cavity (102), a first oil port (105), a second oil port (106), a third oil port (103) and a fourth oil port (104), the first oil port (105) and the second oil port (106) are coaxially arranged, the first oil port (105) and the second oil port (106) are used for being communicated with an external oil supply device, the third oil port (103) and the fourth oil port (104) are used for being connected with an oil cylinder, the first oil port (105) and the third oil port (103) are communicated with the first valve cavity (101), and the second oil port (106) and the fourth oil port (104) are communicated with the second valve cavity (102); and
the two one-way valves are respectively arranged in the first valve cavity (101) and the second valve cavity (102) and comprise a plug (7), a valve seat (3), a spring seat (4), a valve core (5) and a pressure spring (6), wherein the valve core (5) can be movably arranged in an inner cavity of the valve seat (3) and is in sealing fit with a sharp corner (302) of the valve seat (3); it is characterized in that the preparation method is characterized in that,
the single-control double-unlocking hydraulic lock further comprises: the two plungers (2) are slidably arranged in the valve body (1) and limited by a steel wire retainer ring (13), the first valve cavity (101) is isolated from the second valve cavity (102), two ends of each plunger (2) are provided with a plunger rod (201), a control accommodating cavity (14) is arranged in the middle of a main hole of the valve body (1), and the plunger rods (201) can slide along with the plungers (2) and act on a valve core (5) of the one-way valve through the pressure value of the control accommodating cavity (14), so that the one-way valve is in an opening or closing state.
2. The single-control dual-release hydraulic lock according to claim 1, wherein the open or closed state comprises: when the pressure of the control cavity (14) rises, the two plungers (2) respectively move towards two ends to push the valve core (5) to leave the valve seat (3), and the third oil port (103) to the first oil port (105) and the fourth oil port (104) to the second oil port (106) are controlled to be simultaneously opened, and
when the pressure of the control cavity (14) is reduced, the valve core (5) is reset to the valve seat (3) under the action of the cavity pressure of the third oil port (103) or the fourth oil port (104) and the spring force of the pressure spring (6), and the third oil port (103) to the first oil port (105) and the fourth oil port (104) to the second oil port (106) are controlled to be closed simultaneously.
3. The single-control double-release hydraulic lock according to claim 1 or 2, wherein the third port (103) to the first port (105) and the fourth port (104) to the second port (106) are simultaneously opened to realize cylinder floating, and the third port (103) to the first port (105) and the fourth port (104) to the second port (106) are simultaneously closed to realize cylinder locking.
4. The single-control double-unlocking hydraulic lock according to claim 3, wherein the control pressure for controlling the opening or closing of the third oil port (103) and the fourth oil port (104) is related to the pressure of the third oil port (103) and the fourth oil port (104) and the spring force of the pressure spring (6), and is also related to the force-bearing area of the plunger (2) and the force-bearing area of the valve core (5).
5. Single-control double-unlocking hydraulic lock according to claim 4, wherein said plunger (2) is of T-shaped structure, and is integrally formed with said plunger rod (201).
6. Single-control double-release hydraulic lock according to claim 5, characterized in that the plug (7) and the valve seat (3) are both sleeved with a seal.
7. The single-control dual-release hydraulic lock according to claim 6, wherein the seal comprises an O-ring and a retainer ring.
8. The single-control double-release hydraulic lock according to claim 7, characterized in that the valve core (5) is a conical valve core structure, and the cone angle of the conical valve core structure is matched with the sharp corner (302) of the valve seat (3).
9. The single-control double-release hydraulic lock according to claim 8, wherein the end of the plug (7) is further provided with a counter bore (8) into which one end of the pressure spring (6) is clamped, and the pressure spring (6) is clamped into the counter bore (8) and is in contact with the spring seat (4).
10. Single control double de-hydraulics lock according to claim 9, wherein the bottom of the counter bore (8) is plane with a diameter adapted to the diameter of the pressure spring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122177656.9U CN215293045U (en) | 2021-09-09 | 2021-09-09 | Single-control double-unlocking hydraulic lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122177656.9U CN215293045U (en) | 2021-09-09 | 2021-09-09 | Single-control double-unlocking hydraulic lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215293045U true CN215293045U (en) | 2021-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122177656.9U Active CN215293045U (en) | 2021-09-09 | 2021-09-09 | Single-control double-unlocking hydraulic lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215293045U (en) |
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2021
- 2021-09-09 CN CN202122177656.9U patent/CN215293045U/en active Active
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