CN108223844A - Multistation signal with transmission arm opens fuel path switch conversion control device - Google Patents
Multistation signal with transmission arm opens fuel path switch conversion control device Download PDFInfo
- Publication number
- CN108223844A CN108223844A CN201810148441.4A CN201810148441A CN108223844A CN 108223844 A CN108223844 A CN 108223844A CN 201810148441 A CN201810148441 A CN 201810148441A CN 108223844 A CN108223844 A CN 108223844A
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- Prior art keywords
- switch
- valve
- valve core
- switch valve
- control device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 47
- 239000000446 fuel Substances 0.000 title claims abstract description 44
- 230000005540 biological transmission Effects 0.000 title claims abstract description 21
- 230000009466 transformation Effects 0.000 claims abstract description 33
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 239000003921 oil Substances 0.000 claims description 67
- 239000010720 hydraulic oil Substances 0.000 claims description 24
- 230000033001 locomotion Effects 0.000 claims description 9
- 230000011664 signaling Effects 0.000 abstract description 11
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003462 Bender reaction Methods 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
- F16K11/16—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
- F16K11/161—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only slides
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses the multistation signals with transmission arm to open fuel path switch conversion control device, including switch valve and reversal valve, switch valve is connected with the valve chamber of reversal valve, switch valve core is provided in the valve chamber of switch valve, reversing valve core is provided in the valve chamber of the reversal valve, multiple switch valve state transformation interface is additionally provided on the switch valve, the switch valve state transformation interface is arranged on switch valve core front and rear, the hydraulic fluid forces switch valve core action entered from switch valve state transformation interface, the fuel path switch conversion control device further includes single-way linkage arm, the single-way linkage arm corresponds to the external part setting of switch valve core and reversing valve core.Multiple switch valve state transformation interface is provided on the switch conversion control device of the present invention, after switch valve state transformation interface connection Remote Hydraulic signaling switch, according to the installation site of Remote Hydraulic signaling switch, the situation of different station and the action of multistation driving switch spool can be appeared in.
Description
Technical field
The present invention relates to hydraulic control system field, particularly a kind of multistation signal with transmission arm opens fuel path switch
Conversion control device.
Background technology
The patent of invention of applicant's earlier application《A kind of linkage based on multiway hydraulic control valve》(Patent No.
201310413960.6) a kind of linkage applied on anglebender is disclosed, the linkage is with multipath hydraulic control
Based on valve processed, multiway hydraulic control valve has conversion spool and reversing valve core, and different hydraulic cylinders can be switched and carry out fuel feeding
And control hydraulic cylinder commutation, it can realize that the reinforcing bar of hydraulic control is bent automatically.But above-mentioned multiway hydraulic control valve is being controlled
During hydraulic cylinder action processed, it is necessary to which the switching of oil cylinder could be carried out (including commutation) by completing the entire motion flow of oil cylinder, it is impossible to
Coping with some has the sequence of movement of hydraulic cylinder the occasion of more complicated requirement.
Invention content
Turn in view of the above-mentioned problems, opening fuel path switch the object of the present invention is to provide a kind of multistation signal with transmission arm
Control device is changed, using the multistation characteristic of the control device and the linkage characteristic of single-way linkage arm, structure, and energy can be simplified
Cope with more complicated sequence of movement requirement.
The technical solution adopted in the present invention is：
Multistation signal with transmission arm opens fuel path switch conversion control device, described including switch valve and reversal valve
Switch valve is connected with the valve chamber of reversal valve by the first oil duct,
Switch valve core is provided in the valve chamber of the switch valve, hydraulic oil inlet is provided on switch valve and hydraulic oil goes out
Mouthful, switch valve core action makes hydraulic oil inlet switch connection between the first oil duct and hydraulic oil outlet,
Reversing valve core is provided in the valve chamber of the reversal valve, A oil duct junctions, B oil duct junctions and one are provided on reversal valve
A above unloading port, A oil duct junctions and B oil duct junctions connect two interfaces of hydraulic cylinder respectively, and reversing valve core action makes first
Oil duct switches connection between A oil duct junctions and B oil duct junctions, during any one first oil duct of connection of A oil duct junctions or B oil duct junctions,
Another connection unloading port,
Multiple switch valve state transformation interface, the switch valve state transformation interface setting are additionally provided on the switch valve
In switch valve core front and rear, the hydraulic fluid forces switch valve core entered from switch valve state transformation interface acts,
The fuel path switch conversion control device further includes single-way linkage arm, the single-way linkage arm correspond to switch valve core and
The external part setting of reversing valve core.
Multiple switch valve state transformation interface, switch valve state are provided on the fuel path switch conversion control device of the present invention
After becoming alias connection Remote Hydraulic signaling switch, according to the installation site of Remote Hydraulic signaling switch, difference can be appeared in
Station and the situation of multistation driving switch spool action.It is additionally provided on the fuel path switch conversion control device of the present invention
Single-way linkage arm makes switch valve core and reversing valve core that can realize linkage, reduces the connection of oil pipe, simplifies apparatus structure.
As a further improvement of the above technical scheme, shaft, single-way linkage arm are provided in the middle part of the single-way linkage arm
Both ends correspond to the external part of switch valve core and reversing valve core respectively.
As a further improvement of the above technical scheme, single-way linkage is pushed when the switch valve core or reversing valve core stretch out
Arm rotates, and switch valve core and reversing valve core realize incorgruous linkage by single-way linkage arm.
As a further improvement of the above technical scheme, the external part of the single-way linkage arm connecting valve spool, unidirectionally
Transmission arm upwardly extends and corresponds to reversing valve core, and single-way linkage armband moves reversing valve core homodromous movement when switch valve core acts.
As a further improvement of the above technical scheme, the external part of the single-way linkage arm connection reversing valve core, unidirectionally
Transmission arm extends downwardly and corresponds to switch valve core, and single-way linkage armband moves switch valve core homodromous movement when reversing valve core acts.
As a further improvement of the above technical scheme, push rod, the push rod position are provided in the valve chamber of the switch valve
Between two adjacent switch valve state transformation interfaces.The hydraulic fluid entered from switch valve state transformation interface can be pushed away first
Dynamic push rod, then acted by push rod pull switch spool.Multistation control can be easily realized using push rod, and push rod can be with switch
Spool detaches, and reduces the production difficulty of switch valve core.
As a further improvement of the above technical scheme, the push rod is wholely set with switch valve core, reduces accessory.
As a further improvement of the above technical scheme, reversal valve state transformation interface is provided on the reversal valve, from
The hydraulic fluid forces reversing valve core action that reversal valve state transformation interface enters.
As a further improvement of the above technical scheme, the switch valve and reversal valve are wholely set.
The beneficial effects of the invention are as follows：
The prior art is compared, the multistation signal provided by the invention with transmission arm opens fuel path switch conversion control device
More complicated control can be according to circumstances carried out, more complicated sequence of movement requirement, while the setting of single-way linkage arm can be coped with
The state that switch valve and reversal valve can be achieved changes linkage, reduces the connection of oil pipe, applies the control system in anglebender
On, it can preferably complete the action of reinforcing bar bending.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the internal oil passages schematic diagram of first embodiment of the invention.
Fig. 2 is the structure diagram of first embodiment of the invention.
Fig. 3 is a kind of connection diagram of control linkage based on the present invention.
Fig. 4 to Figure 11 is each working state schematic representation that linkage is controlled in Fig. 3.
Figure 12 is the oil circuit schematic diagram of the five elbow stirrup benders based on the present invention.
Figure 13 is the structure diagram of the stirrup bender of Figure 12.
Figure 14 is the internal oil passages schematic diagram of second embodiment of the invention.
Specific embodiment
Two the present invention provides the multistation signal unlatching fuel path switch conversion control device with transmission arm are preferred real
Example is applied to illustrate.
With reference to Fig. 1, Fig. 2, Fig. 1 and Fig. 2 provide currently preferred first embodiment, including switch valve 1 and reversal valve
2, switch valve 1 is connected with the valve chamber of reversal valve 2 by the first oil duct 3, it is preferred that the switch valve 1 and reversal valve 2 are integrally set
It puts.Switch valve core 11 is provided in the valve chamber of the switch valve 1, hydraulic oil inlet 12 is provided on switch valve 1 and hydraulic oil goes out
Mouth 13, the action of switch valve core 11 make hydraulic oil inlet 12 switch connection between the first oil duct 3 and hydraulic oil outlet 13.It is described to change
Reversing valve core 21 is provided with into the valve chamber of valve 2, A oil duct junctions, B oil duct junctions are provided on reversal valve 2 and more than one is unloaded
Hydraulic fluid port O, A oil duct junction and B oil duct junctions connect two interfaces of hydraulic cylinder respectively, and the action of reversing valve core 21 makes the first oil duct 3 in A
During any one first oil duct of connection of switching connection between oil duct junction and B oil duct junctions, A oil duct junctions or B oil duct junctions, another company
Unload hydraulic fluid port O.
In the present embodiment, it is also set up on the switch valve 1 there are three switch valve state transformation interface 14,15,16, wherein
First switch valve state transformation interface 14 is arranged on 11 forepart of switch valve core, and second switch valve state transformation interface 15 and third are opened
Close valve state becomes alias 16 and is arranged on 11 rear portion of switch valve core.Further, second switch valve state transformation interface 15 and third
Push rod 17 is provided in valve chamber between switch valve state transformation interface 16, there are even between the push rod 17 and switch valve core 11
The gap of logical second switch valve state transformation interface 15.In the present embodiment, the push rod 17 is provided separately with switch valve core 11,
In other embodiments, push rod 17 can be also integrally disposed upon in switch valve core 11.From first switch valve state transformation interface 14 into
The hydraulic fluid entered can be retracted with pull switch spool 11, and the hydraulic fluid entered from second switch valve state transformation interface 15 can
It is stretched out with pull switch spool 11, and the hydraulic fluid entered from third switch valve state transformation interface 16 first pushes push rod, then
It is acted and stretched out by push rod pull switch spool.By multiple switch valve state transformation interface 14,15,16 above, can realize
The action of multistation controlling switch valve core 11 controls so as to fulfill more complicated oil circuit.
Further, reversal valve state transformation interface 22 is provided on the reversal valve 2, from reversal valve state transformation interface 22
The hydraulic fluid forces reversing valve core 21 of entrance acts.
Further, single-way linkage arm 4 is additionally provided on the fuel path switch conversion control device, in the present embodiment, institute
It states 4 middle part of single-way linkage arm and is provided with shaft 41,4 both ends of single-way linkage arm correspond to switch valve core 11 and reversing valve core 21 respectively.
Ejection single-way linkage arm 4 rotates single-way linkage arm 4 when switch valve core 11 is stretched out, and ejection reversing valve core 21 is retracted to change
The state of reversing valve core 21 realizes linkage.In addition, in other embodiments, the single-way linkage arm can also be connected directly between
In switch valve core or reversing valve core, single-way linkage arm is extended to other spool, when one of spool acts, is passed through
Single-way linkage armband moves another spool homodromous movement.It can be realized between switch valve 1 and reversal valve 2 by single-way linkage arm 4
Linkage reduces the connection of oil pipe, simplifies apparatus structure.
With reference to Fig. 3, Fig. 3 provides a kind of connection diagram of the control linkage based on the present invention for illustrating this hair
The bright course of work.The control linkage includes the first hydraulic cylinder 101 and the second hydraulic cylinder 105, wherein the first liquid
There are two Remote Hydraulic signaling switch 102,103, the work of the second hydraulic cylinder 105 for setting on the piston rod stroke of compressing cylinder 101
It is also provided on stopper rod stroke there are two Remote Hydraulic signaling switch 106,107, the second hydraulic cylinder 105 connects the oil of the present embodiment
Way switch conversion control device 108, the connection of the first hydraulic cylinder 1001 simplify the switch conversion control device 104 of version, and oil circuit connects
It connects with reference to Fig. 3.Wherein the hydraulic oil inlet connection oil pump of fuel path switch conversion control device 108 or the conversion of upper level fuel path switch
The hydraulic oil outlet of control device, the hydraulic oil outlet connection next stage fuel path switch of fuel path switch conversion control device 108 turn
The hydraulic oil inlet or fuel tank of control device are changed, is moved towards by the oil circuit of switch valve core control fuel path switch conversion control device 108,
105 fuel feeding of the second hydraulic cylinder connected or piggybacking hydraulic oil outlet are given to switch conversion control device 104 by reversal valve
Carry out fuel feeding；Three switch valve state transformation interfaces of the fuel path switch conversion control device 108 connect three remotely respectively
Hydraulic pressure signal switchs, and can change the state of switch valve core in the case of different station.
It is the schematic diagram for controlling each working condition of linkage shown in Fig. 4 to Figure 11 with reference to Fig. 4 to Figure 11.Such as Fig. 4 institutes
Show, after control linkage starts, oil pump by fuel path switch conversion control device 108 first to 105 fuel feeding of the second hydraulic cylinder,
Stretch out the piston rod of the second hydraulic cylinder 105.As shown in figure 5, the piston triggering Remote Hydraulic signal of the second hydraulic cylinder 105
Switch 106, hydraulic oil reach opening positioned at 108 rear portion of fuel path switch conversion control device by Remote Hydraulic signaling switch 106
Close valve state becomes alias, changes the state of switch valve core, and pass through the state of 4 synchronous change reversing valve core of single-way linkage arm,
Further change the switch valve core state of switch conversion control device 104 by the hydraulic oil of Remote Hydraulic signaling switch 106.Such as
Shown in Fig. 6, oil pump piggybacking fuel path switch conversion control device 108 drives the first hydraulic pressure to 104 fuel feeding of switch conversion control device
The action of oil cylinder 101 stretches out piston rod.Fig. 7 and Fig. 8 show the first hydraulic cylinder 101 triggering Remote Hydraulic signaling switch 102,
The reversal valve of switch conversion control device 104 is made to change state, 101 commutation action of the first hydraulic cylinder.Fig. 9 show the first liquid
After compressing cylinder 101 triggers Remote Hydraulic signaling switch 103, switch conversion control device 104 and fuel path switch conversion and control dress
The switch valve for putting 108 changes state.Figure 10 show 105 commutation action of the second hydraulic cylinder and is resetted.Figure 11 show
Triggering Remote Hydraulic signaling switch 107, changes fuel path switch conversion control device 108 again after two hydraulic cylinders 105 reset
Switch valve state, hydraulic oil can piggybacking fuel path switch conversion control device 108 and switch conversion control device 104 successively, into
Row emptying carries out fuel feeding to the switch conversion control device of next stage again.
It is shown by the working condition shown in Fig. 4 to Figure 11, utilizes the multistation signal provided by the invention with transmission arm
It opens fuel path switch conversion control device to control oil circuit, can make to realize more complicated action between multiple hydraulic cylinders
Sequentially, after the piston rod extending action of the second hydraulic cylinder 105 as shown, according to circumstances next stage oil cylinder first can be controlled to move
Make, then just the piston rod of the second hydraulic cylinder 105 is resetted.Multiway hydraulic control valve in compared with prior art, this
The fuel path switch conversion control device structure of invention is simpler, realization it is with better function, have wider application range.And
The setting of wherein single-way linkage arm can reduce the connection of oil pipe as far as possible, be further simplified the structure of complete machine.
The present embodiment is suitable on the mechanical equipment that complex control is carried out using hydraulic control system, such as Figure 12 and Figure 13 institutes
The anglebender shown may replace expensive and relatively low stability electric-controlled mechanical equipment in most of workplace.Such as figure
Shown in 12, using multiple fuel path switch conversion control devices, it can be achieved that the action of the complicated sequence of five elbows, so as to make reinforcing bar curved
Folding machine is automatically performed the everything of reinforcing steel bar hoop bending.
With reference to Figure 14, the present invention also provides second embodiment, including integrated switch valve 1 and reversal valve 2, switch valve
1 is connected with the valve chamber of reversal valve 2 by the first oil duct 3.Switch valve core 11, switch valve 1 are provided in the valve chamber of the switch valve 1
On be provided with hydraulic oil inlet 12 and hydraulic oil outlet 13, the action of switch valve core 11 makes hydraulic oil inlet 12 in 3 He of the first oil duct
Switch connection between hydraulic oil outlet 13.Reversing valve core 21 is provided in the valve chamber of the reversal valve 2, A is provided on reversal valve 2
Oil duct junction, B oil duct junctions and more than one unloading port O, A oil duct junctions and B oil duct junctions connect hydraulic cylinder respectively two connect
Mouthful, the action of reversing valve core 21 makes the first oil duct 3 switch connection between A oil duct junctions and B oil duct junctions, A oil duct junctions or B oil duct junctions
During any one first oil duct of connection, another connection unloading port O.Difference lies in described for the present embodiment and first embodiment
Switch valve state transformation interface 14,14 ', 15,15 ', 16 and two push rods 17,17 ' there are five being also set up on switch valve 1, two
A push rod 17,17 ' is distributed in multistage, and the present embodiment compares first embodiment, it can be achieved that the control of more multistation.
The preferred embodiments of the present invention are these are only, as long as realizing the technical side of the object of the invention with essentially identical means
Case is belonged within protection scope of the present invention.
Claims (9)
1. the multistation signal with transmission arm opens fuel path switch conversion control device, described to open including switch valve and reversal valve
Valve is closed to connect by the first oil duct with the valve chamber of reversal valve,
Switch valve core is provided in the valve chamber of the switch valve, described switch valve core one end is stretched out outside switch valve, on switch valve
Be provided with hydraulic oil inlet and hydraulic oil outlet, switch valve core action make hydraulic oil inlet the first oil duct and hydraulic oil outlet it
Between switch connection,
Reversing valve core is provided in the valve chamber of the reversal valve, described reversing valve core one end is stretched out outside reversal valve, on reversal valve
A oil duct junctions, B oil duct junctions and more than one unloading port are provided with, A oil duct junctions and B oil duct junctions connect hydraulic cylinder respectively
Two interfaces, reversing valve core action make the first oil duct switch connection, A oil duct junctions or B oil ducts between A oil duct junctions and B oil duct junctions
During any one first oil duct of connection of mouth, another connection unloading port,
It is characterized in that：
Multiple switch valve state transformation interface is additionally provided on the switch valve, the switch valve state transformation interface is arranged on out
Spool front and rear is closed, the hydraulic fluid forces switch valve core action entered from switch valve state transformation interface,
The fuel path switch conversion control device further includes single-way linkage arm, and the single-way linkage arm corresponds to switch valve core and commutation
The external part setting of spool.
2. the multistation signal according to claim 1 with transmission arm opens fuel path switch conversion control device, feature
It is：It is provided with shaft in the middle part of the single-way linkage arm, single-way linkage arm both ends correspond to switch valve core and reversing valve core respectively
External part.
3. the multistation signal according to claim 2 with transmission arm opens fuel path switch conversion control device, feature
It is：The switch valve core or reversing valve core push the rotation of single-way linkage arm when stretching out, switch valve core and reversing valve core pass through list
Incorgruous linkage is realized to transmission arm.
4. the multistation signal according to claim 1 with transmission arm opens fuel path switch conversion control device, feature
It is：The external part of the single-way linkage arm connecting valve spool, single-way linkage arm upwardly extend and correspond to reversing valve core, when opening
Single-way linkage armband moves reversing valve core homodromous movement when closing spool action.
5. the multistation signal according to claim 1 with transmission arm opens fuel path switch conversion control device, feature
It is：The external part of single-way linkage arm connection reversing valve core, single-way linkage arm extend downwardly and correspond to switch valve core, when changing
Single-way linkage armband moves switch valve core homodromous movement when being acted to spool.
6. the multistation signal according to claim 1 with transmission arm opens fuel path switch conversion control device, feature
It is：Be provided with push rod in the valve chamber of the switch valve, the push rod be located at two adjacent switch valve state transformation interfaces it
Between.
7. the multistation signal according to claim 6 with transmission arm opens fuel path switch conversion control device, feature
It is：The push rod is wholely set with switch valve core.
8. the multistation signal according to claim 1 with transmission arm opens fuel path switch conversion control device, feature
It is：Reversal valve state transformation interface is provided on the reversal valve, the hydraulic fluid entered from reversal valve state transformation interface
Push reversing valve core action.
9. the multistation signal according to claim 1 with transmission arm opens fuel path switch conversion control device, feature
It is：The switch valve and reversal valve are wholely set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810148441.4A CN108223844B (en) | 2018-02-13 | 2018-02-13 | Multi-station signal opening oil way switch conversion control device with linkage arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810148441.4A CN108223844B (en) | 2018-02-13 | 2018-02-13 | Multi-station signal opening oil way switch conversion control device with linkage arm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108223844A true CN108223844A (en) | 2018-06-29 |
| CN108223844B CN108223844B (en) | 2024-01-09 |
Family
ID=62661870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810148441.4A Active CN108223844B (en) | 2018-02-13 | 2018-02-13 | Multi-station signal opening oil way switch conversion control device with linkage arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108223844B (en) |
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| CN2760312Y (en) * | 2004-11-10 | 2006-02-22 | 冯广建 | A combination valve with knocking type linkage for hydraulic bending machine |
| CN201627770U (en) * | 2010-01-26 | 2010-11-10 | 冯广建 | Mechanical combination valve |
| CN103452937A (en) * | 2013-09-11 | 2013-12-18 | 冯广建 | Multi-channel hydraulic control valve |
| CN104879338A (en) * | 2015-05-21 | 2015-09-02 | 冯广建 | Hydraulic oil channel tailgating telescopic device |
| CN206647335U (en) * | 2017-02-16 | 2017-11-17 | 冯广建 | A kind of hydraulic control system of Stroke Control |
| CN107387473A (en) * | 2017-08-16 | 2017-11-24 | 冯广建 | Tandem piggybacking formula multipath hydraulic control device |
| CN107457334A (en) * | 2016-06-03 | 2017-12-12 | 冯广建 | Fluid pressure type wire rod automatic gauging cutting mechanism |
| CN208010978U (en) * | 2018-02-13 | 2018-10-26 | 冯广建 | Multistation signal with transmission arm opens fuel path switch conversion control device |
-
2018
- 2018-02-13 CN CN201810148441.4A patent/CN108223844B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2760312Y (en) * | 2004-11-10 | 2006-02-22 | 冯广建 | A combination valve with knocking type linkage for hydraulic bending machine |
| CN201627770U (en) * | 2010-01-26 | 2010-11-10 | 冯广建 | Mechanical combination valve |
| CN103452937A (en) * | 2013-09-11 | 2013-12-18 | 冯广建 | Multi-channel hydraulic control valve |
| CN104879338A (en) * | 2015-05-21 | 2015-09-02 | 冯广建 | Hydraulic oil channel tailgating telescopic device |
| CN107457334A (en) * | 2016-06-03 | 2017-12-12 | 冯广建 | Fluid pressure type wire rod automatic gauging cutting mechanism |
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| Publication number | Publication date |
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| CN108223844B (en) | 2024-01-09 |
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