CN208057568U - Luffing balanced hydraulic valve group with emergency function - Google Patents
Luffing balanced hydraulic valve group with emergency function Download PDFInfo
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- CN208057568U CN208057568U CN201820253669.5U CN201820253669U CN208057568U CN 208057568 U CN208057568 U CN 208057568U CN 201820253669 U CN201820253669 U CN 201820253669U CN 208057568 U CN208057568 U CN 208057568U
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- hydraulic
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Abstract
The utility model is suitable for technical field of hydraulic, provide a kind of luffing balanced hydraulic valve group with emergency function, including the first balanced valve, second balanced valve, throttle valve, hydraulic control one-way valve, first oil inlet, second oil inlet, first oil outlet, second oil outlet, third oil outlet and emergent hydraulic fluid port, first balanced valve and the first oil inlet, first oil outlet and throttle valve connection, first balanced valve is also connect by the first oil circuit with the second oil inlet, throttle valve is connect with hydraulic control one-way valve, hydraulic control one-way valve is connect with third oil outlet, the control port of hydraulic control one-way valve is connect by hydraulic fluid port of meeting an urgent need with external emergent oil sources, second balanced valve is connect with the second oil inlet and the second oil outlet, second balanced valve is also connect by the second oil circuit with the first oil inlet.Luffing balanced hydraulic valve group provided by the utility model with emergency function not only has the function of that load keeps also having emergent lowering function, and speed is adjustable when emergent decentralization, securely and reliably.
Description
Technical field
The utility model belongs to technical field of hydraulic, and in particular to arrives a kind of luffing balanced hydraulic with emergency function
Valve group.
Background technology
With the development of society, the application of high-altitude operation vehicle is more and more wider, lift height is also higher and higher.
High-altitude operation vehicle is the equipment of manned lifting, and continuous with design height is risen.In high-altitude operation vehicle active force
After system breaks down, people is sent can safely back to the emergency operation on ground becomes a kind of necessary.
Utility model content
The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, provide a kind of luffing with emergency function
Balanced hydraulic valve group not only has the function of that load keeps also having emergent lowering function, and speed is adjustable when emergent decentralization,
Securely and reliably.
The utility model is realized in this way：Luffing balanced hydraulic valve group with emergency function, including the first balanced valve, the
Two balanced valves, throttle valve, hydraulic control one-way valve, the first oil inlet, the second oil inlet, connect with the big chamber of external oil cylinder first
Oil outlet, the second oil outlet, third oil outlet and the emergent hydraulic fluid port being connect with the small chamber of external oil cylinder, first balance
The first end of valve is connect with first oil inlet, and second end and the first oil outlet and throttle valve of first balanced valve connect
It connects, the third end of first balanced valve is connect by the first oil circuit with second oil inlet, the throttle valve and the liquid
The oil outlet connection of check valve is controlled, the oil inlet of the hydraulic control one-way valve is connect with third oil outlet, the hydraulic control one-way valve
Control port is connect by the emergent hydraulic fluid port with external emergent oil sources, the first end of second balanced valve and described second
Oil inlet connects, and the second end of second balanced valve is connect with the second oil outlet, and the third end of second balanced valve passes through
Second oil circuit is connect with first oil inlet.
As a preferred embodiment of the utility model, first oil circuit is equipped with the first damping hole.
As a preferred embodiment of the utility model, second oil circuit is equipped with the second damping hole.
A kind of luffing balanced hydraulic valve group with emergency function provided by the utility model not only there is load to keep work(
Can also have emergent lowering function, and speed is adjustable when emergent lower section, securely and reliably.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
It can be obtain other attached drawings according to these attached drawings.
The following drawings is only intended in doing schematic illustration and explanation to the utility model, does not limit the model of the utility model
It encloses.
Fig. 1 is the principle schematic for the luffing balanced hydraulic valve group with emergency function that the utility model embodiment provides.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Unless otherwise defined, the technical term or scientific terminology that the utility model uses are should be belonging to the utility model
The ordinary meaning that the personage with general technical ability is understood in field." first " that is used in the utility model, " second " and
Similar word is not offered as any sequence, quantity or importance, and is used only to distinguish different component parts.Equally,
"one", the similar word such as " one " or "the" do not indicate that quantity limits yet, but indicates that there are at least one." comprising " or
The similar word such as "comprising" means that the element or object that occur before the word cover the element for appearing in the word presented hereinafter
Either object and its equivalent and be not excluded for other elements or object.The similar word such as " connection " or " connected " not limits
Due to physics or mechanical connection, but may include electrical connection, either directly or indirectly."upper",
"lower", "left", "right" etc. are only used for indicating relative position relation, and after the absolute position for being described object changes, then this is opposite
Position relationship may also correspondingly change.
Embodiment
Referring to Fig. 1, the luffing balanced hydraulic valve group with emergency function, including the first balanced valve 1a, the second balanced valve 1b,
Throttle valve 2, hydraulic control one-way valve 3, the first oil inlet V1, the second oil inlet V2, first going out of being connect with the big chamber of external oil cylinder 4
Hydraulic fluid port C1, the second oil outlet C2, the third oil outlet C3 that are connect with the small chamber of external oil cylinder 4 and emergent hydraulic fluid port A, first is flat
The first end of weighing apparatus valve 1a is connect with the first oil inlet V1, the second end of the first balanced valve 1a and the first oil outlet C1 and throttle valve
2 connections, the third end of the first balanced valve 1a are connect by the first oil circuit 5 with the second oil inlet V2, throttle valve 2 and hydraulic control one-way valve
3 oil outlet connection, the oil inlet of hydraulic control one-way valve 3 are connect with third oil outlet C3, and the control port of hydraulic control one-way valve 3 passes through
Emergent hydraulic fluid port A is connect with external emergent oil sources, and the first end of the second balanced valve 1b is connect with the second oil inlet V2, the second balance
The second end of valve 1b is connect with the second oil outlet C2, and the third end of the second balanced valve 1b passes through the second oil circuit 6 and the first oil inlet
V1 connections.
Among the above, specifically, the luffing balanced hydraulic valve group with emergency function, in normal operating conditions：Make in high-altitude
The high pressure oil of industry vehicle hydraulic system is entered by the first oil inlet V1, by the check valve oil circuit in the first balanced valve 1a, into outer
The big chamber of the oil cylinder 4 in portion pushes the piston in external oil cylinder 4, at this time the hydraulic oil of the first oil inlet V1, by the second oil circuit
6, the second balanced valve 1b can be opened, and then the hydraulic oil in the small chamber of external oil cylinder 4 can pass through the second balanced valve 1b by second
Oil inlet V2 is returned in external fuel tank, realizes the oil return of the small chamber of external oil cylinder 4, external 4 extended realization of oil cylinder
Manned lifting.
Also, the high pressure oil of overhead working truck system by the second oil inlet V2 into fashionable, by the second balanced valve 1b
Check valve oil circuit, into the small chamber of external oil cylinder 4, the hydraulic oil of the second oil inlet V2 at this time, by the first oil circuit 5,
Open the first balanced valve 1a, wherein open the hydraulic fluid pressure of the size of the first balanced valve 1a opening and the second oil inlet V2 at
Ratio, and then the hydraulic oil in the big chamber of external oil cylinder 4 can return to outside by the first balanced valve 1a by the first oil inlet V1
Fuel tank, realize the oil return of the big chamber of external oil cylinder 4, external oil cylinder 4, which is retracted, realizes manned decline etc..
Also, when high-altitude operation vehicle main power system breaks down, i.e., under emergency rating：External emergent oil sources with
Emergent hydraulic fluid port A connections, open hydraulic control one-way valve 3, under the action of high altitude vehicle arm support gravity, in the big chamber of external oil cylinder 4
Hydraulic oil can be returned in external fuel tank by third oil outlet C3 by throttle valve 2 and hydraulic control one-way valve 3, realize external oil
The oil return of the big chamber of cylinder 4, and then the emergent decentralization of external oil cylinder 4 is realized, while passing through throttle valve 2 and hydraulic control one-way valve
The oil return speed of the big chamber of the oil cylinder 4 of 3 controllable emergency rating lower outer portions, and then the speed of emergent lower section, safety can be controlled
It is highly reliable.
Referring to Fig. 1, among the above, as a preferred embodiment of the utility model, the first oil circuit 5 is equipped with the first damping
Hole 7, and then can guarantee the kinetic stability of the first balanced valve 1a.
Referring to Fig. 1, among the above, as a preferred embodiment of the utility model, the second oil circuit 6 is equipped with the second damping
Hole 8, and then can guarantee the kinetic stability of the second balanced valve 1b.
In conclusion a kind of luffing balanced hydraulic valve group with emergency function provided by the utility model, not only has
Load, which keeps function also, has emergent lowering function, and speed is adjustable when emergent decentralization, securely and reliably.
There is the following to need to illustrate：
(1) unless otherwise defined, in the embodiments of the present invention and attached drawing, same label represents same meaning.
(2) in the utility model embodiment attached drawing, the structure being related to the utility model embodiment is related only to, other
Structure, which can refer to, to be commonly designed.
(3) for clarity, in the attached drawing for describing the embodiments of the present invention, the thickness quilt in layer or region
Amplification.It is appreciated that when the element of such as layer, film, region or substrate etc is referred to as being located at "above" or "below" another element,
The element " direct " can be located at "above" or "below" another element, or may exist intermediary element.
(4) in the absence of conflict, the feature in the same embodiment of the utility model and different embodiment can phase
Mutually combination.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
Any modification, equivalent replacement or improvement etc., should be included in the guarantor of the utility model made by within novel spirit and principle
Within the scope of shield.
Claims (3)
1. the luffing balanced hydraulic valve group with emergency function, which is characterized in that including the first balanced valve (1a), the second balanced valve
(1b), throttle valve (2), hydraulic control one-way valve (3), the first oil inlet (V1), the second oil inlet (V2), with external oil cylinder (4)
The first oil outlet (C1) of big chamber connection, the second oil outlet (C2), the third oil outlet being connect with the small chamber of external oil cylinder (4)
(C3) and emergent hydraulic fluid port (A), the first end of first balanced valve (1a) are connect with first oil inlet (V1), and described
The second end of one balanced valve (1a) is connect with the first oil outlet (C1) and throttle valve (2), and the of first balanced valve (1a)
Three ends are connect by the first oil circuit (5) with second oil inlet (V2), the throttle valve (2) and the hydraulic control one-way valve (3)
Oil outlet connection, the oil inlet of the hydraulic control one-way valve (3) connect with third oil outlet (C3), the hydraulic control one-way valve (3)
Control port connect with external emergent oil sources by the emergent hydraulic fluid port (A), the first end of second balanced valve (1b)
It is connect with second oil inlet (V2), the second end of second balanced valve (1b) is connect with the second oil outlet (C2), described
The third end of second balanced valve (1b) is connect by the second oil circuit (6) with first oil inlet (V1).
2. the luffing balanced hydraulic valve group with emergency function as described in claim 1, which is characterized in that first oil circuit
(5) it is equipped with the first damping hole (7).
3. the luffing balanced hydraulic valve group with emergency function as described in claim 1, which is characterized in that second oil circuit
(6) it is equipped with the second damping hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820253669.5U CN208057568U (en) | 2018-02-11 | 2018-02-11 | Luffing balanced hydraulic valve group with emergency function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820253669.5U CN208057568U (en) | 2018-02-11 | 2018-02-11 | Luffing balanced hydraulic valve group with emergency function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208057568U true CN208057568U (en) | 2018-11-06 |
Family
ID=63990488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820253669.5U Expired - Fee Related CN208057568U (en) | 2018-02-11 | 2018-02-11 | Luffing balanced hydraulic valve group with emergency function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208057568U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405581A (en) * | 2022-08-23 | 2022-11-29 | 湖南中联重科智能高空作业机械有限公司 | Balance valve group, aerial work platform and variable amplitude hydraulic control system thereof |
-
2018
- 2018-02-11 CN CN201820253669.5U patent/CN208057568U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405581A (en) * | 2022-08-23 | 2022-11-29 | 湖南中联重科智能高空作业机械有限公司 | Balance valve group, aerial work platform and variable amplitude hydraulic control system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181106 Termination date: 20220211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |