CN108973969A - A kind of high leakproofness hydraulic vehicle braking valve - Google Patents
A kind of high leakproofness hydraulic vehicle braking valve Download PDFInfo
- Publication number
- CN108973969A CN108973969A CN201810832190.1A CN201810832190A CN108973969A CN 108973969 A CN108973969 A CN 108973969A CN 201810832190 A CN201810832190 A CN 201810832190A CN 108973969 A CN108973969 A CN 108973969A
- Authority
- CN
- China
- Prior art keywords
- oil
- spool
- valve
- vertical direction
- gear
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/04—Driver's valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a kind of high leakproofness hydraulic vehicle braking valves, and the valve body of oil inlet, oil outlet, oil return opening is equipped with including side, are equipped with valve opening in the valve body along the vertical direction, are equipped with spool in the valve opening；The upper and lower ends of the valve opening are separately installed with upper end cover and lower cover, and push rod is slidably connected in the upper end cover, is equipped with reset spring in valve opening；The drive screw for driving valve core movement is equipped in the push rod along the vertical direction, is equipped with the motion thread hole being threadedly coupled with the drive screw along the vertical direction in spool；The oil-through-hole for being connected to hydraulic fluid port is equipped in the spool；It is equipped with along the vertical direction in the lower cover and mounting groove, the bottom of the spool is fixedly installed with first rotating shaft, one end that the first rotating shaft protrudes into mounting groove is fixedly installed with first gear；The hydraulic brake valve can not only reduce the impact to brake, prolong its service life, and fluid power output pressure stabilization can be convenient for control.
Description
Technical field
The present invention relates to brake valve of car technical field more particularly to a kind of high leakproofness hydraulic vehicle braking valves.
Background technique
It in nowadays brake valve of car, is braked mostly using hydraulic valve, it is desirable that output liquid pressure needs to stablize and can
It is controlled, however hydraulic braking in the prior art, when stepping on the push rod of hydraulic brake valve, spool by oil inlet and goes out immediately
Hydraulic fluid port connection causes highly pressurised liquid moment to be passed through in brake and is easy to cause impact to influence its service life on brake, and
Output liquid pressure is unstable, and oil outlet pressure is difficult to control；In addition hydraulic brake valve due to its precision it is relatively high, it is right
It is also higher in pressure oil liquid requirement, it wants that impurity cannot be contained in strict control pressure oil in use, it otherwise can be to spool
Abrasion is caused to influence its normal use.
Summary of the invention
The main purpose of the present invention is to provide a kind of high leakproofness hydraulic vehicle braking valves, can reduce to brake
Impact, prolong its service life, and fluid power output pressure stablize, can convenient for control.
To achieve the above objectives, the technical solution adopted by the present invention are as follows: a kind of high leakproofness hydraulic vehicle braking valve, including
Side is equipped with the valve body of oil inlet, oil outlet, oil return opening, be equipped in the valve body along the vertical direction with oil inlet, oil outlet, return
The valve opening that hydraulic fluid port is connected to, the interior spool being equipped with for control port on-off of the valve opening；The upper and lower ends of the valve opening are distinguished
Upper end cover and lower cover are installed, push rod is slidably connected in the upper end cover, is equipped in the valve opening for forcing described push away
The reset spring that bar moves upwards；The drive screw for driving valve core movement is equipped in the push rod along the vertical direction, it is described
The motion thread hole being threadedly coupled with the drive screw is equipped in spool along the vertical direction；It is equipped in the spool for being connected to
The oil-through-hole of hydraulic fluid port；
It is equipped with along the vertical direction in the lower cover and mounting groove, the bottom of the spool, which is fixedly installed with, protrudes into the peace
First rotating shaft in tankage, one end that the first rotating shaft protrudes into mounting groove are fixedly installed with first gear.
Through the above technical solutions, pressing down on push rod compression when the high leakproofness hydraulic vehicle braking valve works and resetting
Spring is moved downward by drive screw band movable valve plug at the same time, after the lower end of spool is contradicted to lower cover, continue to
Lower pressing spool, by the effect in drive screw and motion thread hole so that valve core rotation, and then drive be located at it is logical in spool
Oil-hole location commutation, oil inlet and outlet connection.It moves upwards, makes under the action of unclamping push rod back valve core in reset spring
It obtains oil inlet and outlet to disconnect, when the first gear in the first rotating shaft for being located at spool lower end is contradicted to the upper surface of mounting groove
When, spool no longer moves upwards, and push rod continues up under the action of reset spring, passes through drive screw and motion thread
The effect in hole is so that spool rotates backward, and then the through flow hole being located in spool is driven to be restored to initial position；The hydraulic braking
Valve can reduce the impact to brake, prolong its service life, and fluid power output pressure is stablized, and can be convenient for control.
In further technical solution, the side of the spool, which is equipped with, is from top to bottom successively arranged the first convex shoulder and second
Convex shoulder, the oil-through-hole is between first convex shoulder and the second convex shoulder.
In further technical solution, the oil inlet and oil return opening are located at the right side of the valve body, and oil inlet and time
The axis of hydraulic fluid port is in same perpendicular；The oil outlet is located at the left side of the valve body.
In further technical solution, worm screw, the lower end of the worm screw are rotatably connected in the valve body along the vertical direction
It protrudes into the mounting groove and is fixedly installed with the second gear engaged with the first gear；On the right side of valve opening in the valve body
Side is equipped with installation cavity, and the installation cavity is between oil return opening and oil inlet；The installation cavity is protruded into the upper end of the worm screw
It is interior, the second shaft axially arranged along the oil inlet, fixed peace in second shaft are rotatably connected in the installation cavity
Equipped with the worm gear engaged with the worm screw, filtering table is fixedly installed in second shaft on the right side of the worm gear, it is described
It is provided with the filter hole with oil inlet and oil return opening cooperation on filtering table, filter screen is installed in the filter hole.
Through the above technical solutions, when pressing down on push rod compression reseting spring, by drive screw band movable valve plug to
Lower movement continues to press down on spool, passes through drive screw and motion thread hole after the lower end of spool is contradicted to lower cover
Effect so that valve core rotation, spool drives first gear rotation by first rotating shaft in the rotation, and first gear passes through
Second gear drives worm screw rotation, and worm screw is rotated by the second shaft of worm-gear driven, and the second shaft drives filtering table to rotate, when pushing away
After bar is floored, filtering table rotates 180 degree and goes to the filter screen being located at oil return opening at oil inlet, the pressure oil of oil inlet
Enter through flow hole after passing through the filter screen then to export from oil outlet, which can effectively reduce the impurity in pressure oil and produce spool
It is raw to influence.It is moved upwards under the action of unclamping push rod back valve core in reset spring, when in the first rotating shaft of spool lower end
First gear when contradicting to the upper surface of mounting groove, spool no longer moves upwards, and push rod continues under the action of reset spring
Move upwards, by the effect in drive screw and motion thread hole so that spool rotates backward, when spool rotates backward into
And filtering table is driven to rotate backward；After push rod resets completely, filtering table rotates backward 180 degree, will be located at the mistake at oil inlet
Strainer is gone at oil return opening, at this time the pressure oil liquid of oil outlet, is flowed to oil return opening and is recoiled to filter screen, and filter screen will be located at
On impurity recoil to oil return opening；The setting can effectively reduce influence of the impurity to spool in oil liquid.
In further technical solution, it is equipped at close port thereon in the valve opening and is contradicted for reset spring lower end
Step.
In further technical solution, the motion thread hole is connected to oil-through-hole；The setting can to drive screw with
Lubrication is played the role of in the connection cooperation in motion thread hole.
The utility model has the advantages that
When the high leakproofness hydraulic vehicle braking valve works, push rod compression reseting spring is pressed down on, is passed through at the same time
Drive screw band movable valve plug moves downward, and after the lower end of spool is contradicted to lower cover, continues to press down on spool, passes through biography
The effect in dynamic screw rod and motion thread hole drives the oil-through-hole position-commutate mode being located in spool, oil inlet so that valve core rotation
Mouth is connected to oil outlet.It is moved upwards under the action of unclamping push rod back valve core in reset spring, so that oil inlet and outlet
It disconnects, when the first gear in the first rotating shaft for being located at spool lower end is contradicted to the upper surface of mounting groove, spool is no longer upward
Movement, push rod continues up under the action of reset spring, by the effect in drive screw and motion thread hole so that valve
Core rotates backward, and then the through flow hole being located in spool is driven to be restored to initial position；The hydraulic brake valve can be reduced to system
The impact of dynamic device, prolongs its service life, and fluid power output pressure is stablized, and can be convenient for control；
In addition it when pressing down on push rod compression reseting spring, is moved downward by drive screw band movable valve plug, works as spool
Lower end contradict to after lower cover, continuing to press down on spool, by the effect in drive screw and motion thread hole so that valve
Core rotation, spool drive first gear rotation by first rotating shaft in the rotation, and first gear is driven by second gear
Worm screw rotation, worm screw are rotated by the second shaft of worm-gear driven, and the second shaft drives filtering table rotation, when push rod floors it
Afterwards, filtering table rotation 180 degree goes to the filter screen being located at oil return opening at oil inlet, and the pressure oil of oil inlet is after passing through the filter screen
It is then exported into through flow hole from oil outlet, the impurity which can effectively reduce in pressure oil has an impact spool.?
It unclamps push rod back valve core to move upwards under the action of reset spring, the first gear in the first rotating shaft for being located at spool lower end
When contradicting the upper surface of mounting groove, spool is no longer moved upwards, and push rod continues up under the action of reset spring, is led to
The effect of drive screw and motion thread hole is crossed so that spool rotates backward, when spool rotates backward and then drives filtering table
It rotates backward；After push rod resets completely, filtering table rotates backward 180 degree, and the filter screen being located at oil inlet is gone to oil return
At mouthful, the pressure oil liquid of oil outlet, flows to oil return opening and recoils to filter screen at this time, will be located at the impurity on filter screen and recoils
To oil return opening, which can effectively reduce influence of the impurity to spool in oil liquid.
Detailed description of the invention
Fig. 1 is a kind of first the schematic diagram of the section structure of high leakproofness hydraulic vehicle braking valve in the present invention；
Fig. 2 is a kind of second the schematic diagram of the section structure of high leakproofness hydraulic vehicle braking valve in the present invention；
Fig. 3 is the schematic diagram of the section structure in Fig. 2 at A-A；
Fig. 4 is the schematic diagram of the section structure in Fig. 2 at B-B；
Fig. 5 is filtering disk drive structure schematic diagram.
Appended drawing reference: 1- valve body；101- oil inlet；102- oil outlet；103- oil return opening；104- valve opening；105- step；
106- installation cavity；2- spool；The first convex shoulder of 201-；The second convex shoulder of 202-；203- motion thread hole；204- oil-through-hole；The upper end 3-
Lid；4- lower cover；401- mounting groove；5- push rod；6- reset spring；7- drive screw；8- first rotating shaft；9- first gear；10-
Worm screw；11- second gear；The second shaft of 12-；13- worm gear；14- filtering table；15- filter screen.
Specific embodiment
It is described below for disclosing the present invention so that those skilled in the art can be realized the present invention.It is excellent in being described below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.
As shown in Figs. 1-5, a kind of high leakproofness hydraulic vehicle braking valve, including side are equipped with oil inlet 101, oil outlet
102, the valve body 1 of oil return opening 103, the oil inlet 101 and oil return opening 103 are located at the right side of the valve body 1, and oil inlet 101
Axis with oil return opening 103 is in same perpendicular；The oil outlet 102 is located at the left side of the valve body 1；The valve body 1
The valve opening 104 that is connected to oil inlet 101, oil outlet 102, oil return opening 103 is inside equipped with along the vertical direction, in the valve opening 104
Equipped with the spool 2 for control port on-off, the side of the spool 2, which is equipped with, is from top to bottom successively arranged the first convex shoulder 201
With the second convex shoulder 202；The upper and lower ends of the valve opening 104 are separately installed with upper end cover 3 and lower cover 4, slide in the upper end cover 3
It is dynamic to be connected with push rod 5, step 105 is being equipped at port thereon in the valve opening 104, the step 105 is equipped with and is used for
The reset spring 6 for forcing the push rod 5 to move upwards；It is equipped with along the vertical direction in the push rod 5 for driving spool 2 to move
Drive screw 7 is equipped with the motion thread hole 203 being threadedly coupled with the drive screw 7 in the spool 2 along the vertical direction；Institute
State the oil-through-hole 204 being equipped in spool 2 for being connected to hydraulic fluid port；It is convex that the oil-through-hole 204 is located at first convex shoulder 201 and second
Between shoulder 202；The motion thread hole 203 is connected to oil-through-hole 204, which can be to drive screw 7 and motion thread hole
Lubrication is played the role of in 203 connection cooperation.
In the lower cover 4 along the vertical direction be equipped with mounting groove 401, the bottom of the spool 2, which is fixedly installed with, to be protruded into
First rotating shaft 8 in the mounting groove 401, one end that the first rotating shaft 8 protrudes into mounting groove 401 are fixedly installed with by pin key
First gear 9；Worm screw 10 is rotatably connected in the valve body 1 along the vertical direction, the installation is protruded into the lower end of the worm screw 10
The second gear 11 engaged with the first gear 9 is fixedly installed in slot 401 and by pin key；In valve opening in the valve body 1
104 right side is equipped with installation cavity 106, and the installation cavity 106 is between oil return opening 103 and oil inlet 101；The worm screw 10
Upper end protrude into the installation cavity 106, be rotatably connected in the installation cavity 106 and axially arrange along the oil inlet 101
Second shaft 12 is fixedly installed with the worm gear 13 engaged with the worm screw 10 by pin key in second shaft 12, and described
Filtering table 14 is fixedly installed with by pin key on the right side of the worm gear 13 in two shafts 12, be provided on the filtering table 14 with
The filter hole of oil inlet and oil return opening cooperation, is equipped with filter screen 15 in the filter hole.
When the high leakproofness hydraulic vehicle braking valve works, 5 compression reseting spring 6 of push rod is pressed down on, by being driven spiral shell
Bar 7 is moved downward with movable valve plug 2, after the lower end of spool 2 is contradicted to lower cover 4, is continued to press down on push rod 5, is passed through biography
So that spool 2 rotates, spool 2 is driven by first rotating shaft 8 in the rotation for the effect in dynamic screw rod 7 and motion thread hole 203
First gear 9 rotates, and first gear 9 drives worm screw 10 to rotate by second gear 11, and worm screw 10 passes through the driving of worm gear 13 second
Shaft 12 rotates, and the second shaft 12 drives filtering table 14 to rotate, and after push rod 5 is floored, filtering table 14 rotates 180 degree for position
Filter screen 15 at oil return opening 103 is gone at oil inlet 101, while 204 position-commutate mode of oil-through-hole being located in spool 2 will be into
Hydraulic fluid port 101 is connected to oil outlet 102, and the pressure oil of oil inlet 101 enters through flow hole 204 then from oil outlet after filter screen 15
102 outputs, which can effectively reduce impact of the pressure oil to brake, while control through-flow hole site by rotational valve core
The control for realizing flow can be facilitated, and setting strainer can reduce impurity and have an impact to spool.
It is moved upwards under the action of unclamping 5 back valve core 2 of push rod in reset spring 6, so that oil inlet 101 and oil outlet
102 disconnect, when the first gear 9 in the first rotating shaft 8 for being located at 2 lower end of spool contradicts the upper surface for arriving mounting groove 401, spool
2 no longer move upwards, and push rod 5 continues up under the action of reset spring 6, pass through drive screw 7 and motion thread hole
So that spool 2 rotates backward, spool 2 drives 9 turns of first gear by first rotating shaft 8 when rotating backward for 203 effect
Dynamic, first gear 9 drives worm screw 10 to rotate by second gear 11, and worm screw 10 drives the rotation of the second shaft 12 by worm gear 13,
Second shaft 12 driving filtering table 14 rotates backward, and after push rod 5 resets completely, filtering table 14 rotates backward 180 degree, will be located at
Filter screen 15 at oil inlet 101 is gone at oil return opening 103, while the through flow hole 204 being located in spool 2 is restored to initially
Position, the pressure oil liquid of oil outlet 102 flows to oil return opening 103 and recoils to filter screen 15 at this time, will be located on filter screen 15
Impurity recoil to oil return opening 103, complete the cleaning of filter screen 15.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection scope by appended claims and its
Equivalent defines.
Claims (6)
1. a kind of high leakproofness hydraulic vehicle braking valve, which is characterized in that be equipped with oil inlet (101), oil outlet including side
102, the valve body (1) of oil return opening (103), is equipped in the valve body (1) and oil inlet (101), oil outlet along the vertical direction
(102), the valve opening (104) that oil return opening (103) is connected to, the interior spool being equipped with for control port on-off of the valve opening (104)
(2)；The upper and lower ends of the valve opening (104) are separately installed with upper end cover (3) and lower cover (4), sliding in the upper end cover (3)
It is connected with push rod (5), the reset spring (6) for forcing the push rod (5) to move upwards is equipped in the valve opening (104)；Institute
The drive screw (7) being equipped with along the vertical direction in push rod (5) for driving spool (2) to move is stated, the spool (2) is interior along vertical
Direction is equipped with the motion thread hole (203) being threadedly coupled with the drive screw (7)；It is equipped in the spool (2) for being connected to
The oil-through-hole (204) of hydraulic fluid port；It is equipped with and mounting groove (401), the bottom of the spool (2) along the vertical direction in the lower cover (4)
Portion is fixedly installed with the first rotating shaft (8) protruded into the mounting groove (401), and the first rotating shaft (8) protrudes into mounting groove (401)
One end be fixedly installed with first gear (9).
2. high leakproofness hydraulic vehicle braking valve as described in claim 1, which is characterized in that on the side of the spool (2)
Equipped with the first convex shoulder (201) and the second convex shoulder (202) is from top to bottom successively arranged, the oil-through-hole (204) is located at described first
Between convex shoulder (201) and the second convex shoulder (202).
3. high leakproofness hydraulic vehicle braking valve as described in claim 1, which is characterized in that the oil inlet (101) and return
Hydraulic fluid port (103) is located at the right side of the valve body (1), and the axis of oil inlet (101) and oil return opening (103) is in same perpendicular
It is interior；The oil outlet (102) is located at the left side of the valve body (1).
4. high leakproofness hydraulic vehicle braking valve as claimed in claim 3, which is characterized in that along vertical in the valve body (1)
Direction is rotatably connected to worm screw (10), the lower end of the worm screw (10) protrude into the mounting groove (401) and be fixedly installed with
The second gear (11) of first gear (9) engagement；Installation cavity is equipped on the right side of valve opening (104) in the valve body (1)
(106), and the installation cavity (106) is located between oil return opening (103) and oil inlet (101)；It stretches the upper end of the worm screw (10)
Enter in the installation cavity (106), the axially arranged along the oil inlet (101) is rotatably connected in the installation cavity (106)
Two shafts (12), are fixedly installed with the worm gear (13) engaged with the worm screw (10) on second shaft (12), and described second
Filtering table (14) are fixedly installed on the right side of the worm gear (13) in shaft (12), be provided on the filtering table (14) with into
The filter hole of hydraulic fluid port (101) and oil return opening (103) cooperation, is equipped with filter screen (15) in the filter hole.
5. high leakproofness hydraulic vehicle braking valve as described in claim 1, which is characterized in that leaned in the valve opening (104)
Closely the step (105) contradicted for reset spring (6) lower end is equipped at port thereon.
6. high leakproofness hydraulic vehicle braking valve as described in claim 1, which is characterized in that the motion thread hole (203)
It is connected to oil-through-hole (204).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832190.1A CN108973969B (en) | 2018-07-26 | 2018-07-26 | High leakproofness car hydraulic brake valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832190.1A CN108973969B (en) | 2018-07-26 | 2018-07-26 | High leakproofness car hydraulic brake valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108973969A true CN108973969A (en) | 2018-12-11 |
| CN108973969B CN108973969B (en) | 2020-05-19 |
Family
ID=64550895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810832190.1A Active CN108973969B (en) | 2018-07-26 | 2018-07-26 | High leakproofness car hydraulic brake valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108973969B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497933A (en) * | 2020-04-09 | 2020-08-07 | 中国煤炭科工集团太原研究院有限公司 | Steering device and control system for steering wheel of integral hydrostatic drive vehicle under coal mine well |
| CN112277907A (en) * | 2020-11-02 | 2021-01-29 | 安徽江淮汽车集团股份有限公司 | Novel driver's cabin can crouch and cut off gas and stop control device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001260841A (en) * | 2000-03-17 | 2001-09-26 | Unisia Jecs Corp | Solenoid value and braking device |
| EP1329369A1 (en) * | 2002-01-22 | 2003-07-23 | MAN Steyr AG | Pressure control device for a pneumatic actuator |
| US20100007203A1 (en) * | 2008-07-11 | 2010-01-14 | Mahaney Shawn D | Signal control device |
| DE102004042208B4 (en) * | 2004-09-01 | 2014-07-17 | Volkswagen Ag | Piston pump for conveying a fluid |
| CN104214372A (en) * | 2014-08-26 | 2014-12-17 | 宁波福马工具有限公司 | Flow control valve for combustor |
| CN103144622B (en) * | 2013-03-23 | 2015-12-23 | 牛国亮 | A kind of hydraulic vehicle brake system |
| CN107387810A (en) * | 2017-08-31 | 2017-11-24 | 燕山大学 | The machine feedback formula Numeric hydraulic cylinder that a kind of valve pocket can be servo-actuated |
| CN207064712U (en) * | 2017-07-26 | 2018-03-02 | 瑞安市天禄精密机械有限公司 | A kind of new two-way function valve core of the electromagnetic valve |
-
2018
- 2018-07-26 CN CN201810832190.1A patent/CN108973969B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001260841A (en) * | 2000-03-17 | 2001-09-26 | Unisia Jecs Corp | Solenoid value and braking device |
| EP1329369A1 (en) * | 2002-01-22 | 2003-07-23 | MAN Steyr AG | Pressure control device for a pneumatic actuator |
| DE102004042208B4 (en) * | 2004-09-01 | 2014-07-17 | Volkswagen Ag | Piston pump for conveying a fluid |
| US20100007203A1 (en) * | 2008-07-11 | 2010-01-14 | Mahaney Shawn D | Signal control device |
| CN103144622B (en) * | 2013-03-23 | 2015-12-23 | 牛国亮 | A kind of hydraulic vehicle brake system |
| CN104214372A (en) * | 2014-08-26 | 2014-12-17 | 宁波福马工具有限公司 | Flow control valve for combustor |
| CN207064712U (en) * | 2017-07-26 | 2018-03-02 | 瑞安市天禄精密机械有限公司 | A kind of new two-way function valve core of the electromagnetic valve |
| CN107387810A (en) * | 2017-08-31 | 2017-11-24 | 燕山大学 | The machine feedback formula Numeric hydraulic cylinder that a kind of valve pocket can be servo-actuated |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497933A (en) * | 2020-04-09 | 2020-08-07 | 中国煤炭科工集团太原研究院有限公司 | Steering device and control system for steering wheel of integral hydrostatic drive vehicle under coal mine well |
| CN112277907A (en) * | 2020-11-02 | 2021-01-29 | 安徽江淮汽车集团股份有限公司 | Novel driver's cabin can crouch and cut off gas and stop control device |
| CN112277907B (en) * | 2020-11-02 | 2021-07-20 | 安徽江淮汽车集团股份有限公司 | Air-break brake operating device for driver's cab |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108973969B (en) | 2020-05-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108973969A (en) | A kind of high leakproofness hydraulic vehicle braking valve | |
| CN201090697Y (en) | Ball screw rod type motor push rod | |
| CN110306509A (en) | A kind of marine pollution cleaning device | |
| CN108660992A (en) | A kind of park passageway cleaning device | |
| CN103836251B (en) | The control method and handle mechanism control method of water purifier axial pressing type reversal valve | |
| CN101956731B (en) | Hydraulic control device and pressure switch | |
| CN208457311U (en) | A kind of antiscale tap | |
| CN210686163U (en) | Fast-assembling type car fluid filter | |
| CN112025422A (en) | Polishing device for inner wall of alloy pipeline | |
| CN208519430U (en) | A kind of driving of monitoring device and lubrication system | |
| CN208559676U (en) | A kind of anti-lock oil pressure disc brake device | |
| CN109519562A (en) | A kind of intelligent reversing valve | |
| CN208778726U (en) | A kind of chemical industry environmental protection air pressure isolating valve | |
| CN110805742A (en) | Anti-misoperation structure of valve | |
| CN107754407A (en) | A kind of spiral filter for being easy to regulation | |
| CN201225113Y (en) | Single hand wheel blowout preventer | |
| CN207545949U (en) | Convenient for the spiral filter device of adjusting | |
| CN209724556U (en) | A kind of fuel pump high-pressure common rail solenoid valve | |
| CN207292290U (en) | A kind of brake parking structure for tricycle | |
| CN207417056U (en) | A kind of disc brake lock system | |
| CN206680104U (en) | With limit for tonnage without underloading Lever Blocks | |
| CN112767610A (en) | Railway self-service inquiry device convenient for old people | |
| CN110206893A (en) | A kind of shut-off valve convenient for adjusting | |
| CN206001048U (en) | Switching valve element | |
| CN211270019U (en) | Safety air valve for pressure cooker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qi Huiguang Inventor before: Qi Huiguang |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |