CN204003701U - A kind of novel bidirectional hydraulic locking-valve group - Google Patents

A kind of novel bidirectional hydraulic locking-valve group Download PDF

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Publication number
CN204003701U
CN204003701U CN201420415539.9U CN201420415539U CN204003701U CN 204003701 U CN204003701 U CN 204003701U CN 201420415539 U CN201420415539 U CN 201420415539U CN 204003701 U CN204003701 U CN 204003701U
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CN
China
Prior art keywords
valve
fluid port
hydraulic fluid
plunger
way valve
Prior art date
Application number
CN201420415539.9U
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Chinese (zh)
Inventor
刘峰
Original Assignee
株洲中研流体技术有限公司
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Publication date
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Priority to CN201420415539.9U priority Critical patent/CN204003701U/en
Application granted granted Critical
Publication of CN204003701U publication Critical patent/CN204003701U/en

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Abstract

The utility model discloses a kind of novel bidirectional hydraulic locking-valve group, comprise valve body, be located at the lockhole chamber in valve body, be located at the first hydraulic fluid port on valve body, the second hydraulic fluid port, the 3rd hydraulic fluid port and the 4th hydraulic fluid port, be located at the plunger in lockhole chamber, be symmetrically set in the first one-way valve and the second one-way valve in the lockhole chamber at plunger two ends, the end of the first inner elements of check valve of the first one-way valve and the second inner elements of check valve of the second one-way valve is biconical surface structure, the first inner elements of check valve of this biconical surface structure and the small angle face of the second inner elements of check valve are all positioned at inner side, its wide-angle face is all positioned at outside, described the first hydraulic fluid port and the second hydraulic fluid port are all communicated with the lockhole chamber of plunger one side, the 3rd hydraulic fluid port and the 4th hydraulic fluid port are all communicated with the lockhole chamber of plunger opposite side, described the first one-way valve and the second one-way valve all adopt screw thread inserting type structure to be installed on the two ends in lockhole chamber.The utlity model has safe and advantage compact structure.

Description

A kind of novel bidirectional hydraulic locking-valve group
Technical field
The utility model relates to hydraulic lock technical field, more particularly, and particularly a kind of novel bidirectional hydraulic locking-valve group.
Background technique
Along with the development growth of China's engineering machinery, particularly for truck crane, user and main frame unit are more and more higher to the requirement of car load hydraulic system; The supporting leg bidirectional hydraulic lock of simultaneously getting off has also proposed the requirement of compact type and Security.For this reason, necessaryly provide a kind of novel bidirectional hydraulic locking-valve group, meet above-mentioned requirements.
Model utility content
The purpose of this utility model is to provide a kind of novel bidirectional hydraulic locking-valve group of safe, compact structure.
In order to solve problem set forth above, the technical solution adopted in the utility model is: a kind of novel bidirectional hydraulic locking-valve group, comprise valve body, be located at the lockhole chamber in valve body, be located at the first hydraulic fluid port on valve body, the second hydraulic fluid port, the 3rd hydraulic fluid port and the 4th hydraulic fluid port, be located at the plunger in lockhole chamber, be symmetrically set in the first one-way valve and the second one-way valve in the lockhole chamber at plunger two ends, the end of the first inner elements of check valve of the first one-way valve and the second inner elements of check valve of the second one-way valve is biconical surface structure, the first inner elements of check valve of this biconical surface structure and the small angle face of the second inner elements of check valve are all positioned at inner side, its wide-angle face is all positioned at outside, described the first hydraulic fluid port and the second hydraulic fluid port are all communicated with the lockhole chamber of plunger one side, the 3rd hydraulic fluid port and the 4th hydraulic fluid port are all communicated with the lockhole chamber of plunger opposite side, described the first one-way valve and the second one-way valve all adopt screw thread inserting type structure to be installed on the two ends in lockhole chamber.
According to a preferred embodiment of the present utility model: described plunger comprises piston body section, be located at two conical sections at piston body section two ends, and be located at two push rod sections outside two conical sections, and two push rod sections are corresponding with the small angle face of the first inner elements of check valve and the second inner elements of check valve respectively.
According to a preferred embodiment of the present utility model: the unlatching of described bidirectional hydraulic locking-valve group is than being 7:1.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model adopts screw thread inserting type mounting structure that one-way valve is installed, and has reduced greatly valve group volume, and has facilitated installation and maintenance;
2, the nonreturn valve core in the new one-way valve of this practicality adopts biconical surface structure, small angle is at front end, wide-angle is in rear end, in spool opening process, form certain throttle grverning, make whole stable action, and when the continuous variation of spool along with displacement, allow restriction become large, make fluid Rapid Flow mistake, can realize so the steadily and fast effect of action;
3, the new active area of nonreturn valve core and the area of plunger of this practicality realized variation, eliminates action open and shut characteristic and impacts, and widened the using scope of this product;
4, the utility model adopts the integration of nonreturn valve core, in the performance of improving product, has eliminated hydraulic power.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of novel bidirectional hydraulic locking-valve group of the present utility model.
Fig. 2 is the plan view of novel bidirectional hydraulic locking-valve group of the present utility model.
Fig. 3 is the plan view of novel bidirectional hydraulic locking-valve group of the present utility model.
Fig. 4 is the hydraulic schematic diagram of novel bidirectional hydraulic locking-valve group of the present utility model.
Description of reference numerals: 1, the first one-way valve, 2, valve body, 3, lockhole chamber, 4, plunger, the 5, second one-way valve, the 6, first inner elements of check valve, the 7, second inner elements of check valve, 8, piston body section, 9, conical section, 10, push rod section.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection domain of the present utility model is made to more explicit defining.
Consult shown in Fig. 1 to Fig. 4, a kind of novel bidirectional hydraulic locking-valve group that the utility model provides, comprise valve body 2, be located at the lockhole chamber 3 in valve body 2, be located at the first hydraulic fluid port A1 on valve body 2, the second hydraulic fluid port A2, the 3rd hydraulic fluid port B1 and the 4th hydraulic fluid port B2, be located at the plunger 4 in lockhole chamber 3, be symmetrically set in the first one-way valve 1 and the second one-way valve 5 in the lockhole chamber 3 at plunger 4 two ends, the end of the first inner elements of check valve 6 of the first one-way valve 1 and the second inner elements of check valve 7 of the second one-way valve 5 is biconical surface structure, the first inner elements of check valve 6 of this biconical surface structure and the small angle face of the second inner elements of check valve 7 are all positioned at inner side, its wide-angle face is all positioned at outside, described the first hydraulic fluid port A1 and the second hydraulic fluid port A2 are all communicated with the lockhole chamber 3 of plunger 4 one sides, the 3rd hydraulic fluid port B1 and the 4th hydraulic fluid port B2 are all communicated with the lockhole chamber 3 of plunger 4 opposite sides, described the first one-way valve 1 and the second one-way valve 5 all adopt screw thread inserting type structure to be installed on the two ends in lockhole chamber 3.
Plunger 4 described in the utility model comprises piston body section 8, be located at two conical sections 9 at piston body section 8 two ends, and be located at two push rod sections 10 in two conical section 9 outsides, and two push rod sections 10 are corresponding with the small angle face of the first inner elements of check valve 6 and the second inner elements of check valve 7 respectively.
The unlatching of the bidirectional hydraulic locking-valve group described in the utility model, than for 7:1, effectively promotes the open and shut characteristic of hydraulic lock, and improves the applicable surface of product.
Whole bidirectional hydraulic locking-valve group is of a size of 102X69X42 (mm).
Working principle of the present utility model is: in use, the second hydraulic fluid port A2 is connected respectively with the 4th hydraulic fluid port B2 the actuator port that multi-way valve is corresponding, the first hydraulic fluid port A1 is connected by flange rodless cavity and the rod chamber that (also can be threaded connection with) enters oil cylinder respectively with the 3rd hydraulic fluid port B1, forms oil hydraulic circuit.
When the second hydraulic fluid port A2 oil-feed, fluid backs down the first corresponding one-way valve 1 spool, rodless cavity through the first hydraulic fluid port A1 to oil cylinder, mineralization pressure, the pressure signal promotion control plunger 4 of setting up that coexists backs down opposite the second one-way valve 5 spools, make rod chamber hydraulic oil through the 3rd hydraulic fluid port B1 mouth, by nonreturn valve core to the four hydraulic fluid port B2 that back down, enter fuel tank, realize the extend action of oil cylinder; When the 4th hydraulic fluid port B2 oil-feed, fluid backs down corresponding the second one-way valve 5 spools, rodless cavity through the 3rd hydraulic fluid port B1 to oil cylinder, mineralization pressure, the pressure signal promotion control plunger 4 of setting up that coexists backs down first one-way valve 1 spool on opposite, make rod chamber hydraulic oil through the first hydraulic fluid port A1, by the nonreturn valve core backing down, to the second hydraulic fluid port A2, enter fuel tank, realize the retract action of oil cylinder.
Above-described embodiment is preferably mode of execution of the utility model; but mode of execution of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.

Claims (3)

1. a novel bidirectional hydraulic locking-valve group, it is characterized in that: comprise valve body (2), be located at the lockhole chamber (3) in valve body (2), be located at the first hydraulic fluid port (A1) on valve body (2), the second hydraulic fluid port (A2), the 3rd hydraulic fluid port (B1) and the 4th hydraulic fluid port (B2), be located at the plunger (4) in lockhole chamber (3), be symmetrically set in interior the first one-way valve (1) and second one-way valve (5) in lockhole chamber (3) at plunger (4) two ends, the end of first inner elements of check valve (6) of the first one-way valve (1) and second inner elements of check valve (7) of the second one-way valve (5) is biconical surface structure, first inner elements of check valve (6) of this biconical surface structure and the small angle face of the second inner elements of check valve (7) are all positioned at inner side, its wide-angle face is all positioned at outside, described the first hydraulic fluid port (A1) and the second hydraulic fluid port (A2) are all communicated with the lockhole chamber (3) of plunger (4) one sides, the 3rd hydraulic fluid port (B1) and the 4th hydraulic fluid port (B2) are all communicated with the lockhole chamber (3) of plunger (4) opposite side, described the first one-way valve (1) and the second one-way valve (5) all adopt screw thread inserting type structure to be installed on the two ends of lockhole chamber (3).
2. novel bidirectional hydraulic locking-valve group according to claim 1, it is characterized in that: described plunger (4) comprises piston body section (8), be located at two conical sections (9) at piston body section (8) two ends, and be located at two the push rod sections (10) outside two conical sections (9), and two push rod sections (10) are corresponding with the small angle face of the first inner elements of check valve (6) and the second inner elements of check valve (7) respectively.
3. novel bidirectional hydraulic locking-valve group according to claim 2, is characterized in that: the unlatching of described bidirectional hydraulic locking-valve group is than being 7:1.
CN201420415539.9U 2014-07-27 2014-07-27 A kind of novel bidirectional hydraulic locking-valve group CN204003701U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420415539.9U CN204003701U (en) 2014-07-27 2014-07-27 A kind of novel bidirectional hydraulic locking-valve group

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420415539.9U CN204003701U (en) 2014-07-27 2014-07-27 A kind of novel bidirectional hydraulic locking-valve group

Publications (1)

Publication Number Publication Date
CN204003701U true CN204003701U (en) 2014-12-10

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Application Number Title Priority Date Filing Date
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104533873A (en) * 2015-01-05 2015-04-22 江苏真绩机械制造有限公司 Two-way self-locking hydraulic cylinder
CN106382267A (en) * 2016-12-14 2017-02-08 湘潭大学 Hydraulic lock
CN106438536A (en) * 2016-08-30 2017-02-22 北京精密机电控制设备研究所 Expandable and high-reliability hydraulic lock
CN106640803A (en) * 2016-11-18 2017-05-10 浙江华益精密机械股份有限公司 Hydraulic lock with flushing function

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104533873A (en) * 2015-01-05 2015-04-22 江苏真绩机械制造有限公司 Two-way self-locking hydraulic cylinder
CN106438536A (en) * 2016-08-30 2017-02-22 北京精密机电控制设备研究所 Expandable and high-reliability hydraulic lock
CN106640803A (en) * 2016-11-18 2017-05-10 浙江华益精密机械股份有限公司 Hydraulic lock with flushing function
CN106382267A (en) * 2016-12-14 2017-02-08 湘潭大学 Hydraulic lock

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141210

Termination date: 20160727