CN206958013U - A kind of replenishing valve with safety valve - Google Patents

Abstract

The utility model discloses a kind of replenishing valve with safety valve, is characterized in ontrol valve assembly mounted in the lower left of topping up valve body right flank and the lower left of topping up valve body left surface.Unidirectional valve assembly is mounted in the lower right of topping up valve body right flank.Main valve core assembly is mounted in the top of topping up valve body right flank and the top of replenishing valve left surface.Safety valve is mounted in includes steel ball, spring, spring base, plug and O-ring in the right of topping up valve body left surface, safety valve, and safety valve is built in replenishing valve.The appearance and size of replenishing valve does not change.The utility model structure design compact and reasonable, is integrated with replenishing valve and safety valve, securely and reliably, reduces connecting pipe, reduces main engine plants' installation cost.

Description

A kind of replenishing valve with safety valve

Technical field

The utility model belongs to rubber-tyred vehicle full hydraulic power brake system regions, more particularly, to a kind of band safety valve Replenishing valve.

Background technology

Replenishing valve is the core parts in full hydraulic power brake system.At present, it is normal in full hydraulic power brake system Replenishing valve is advised all without safety valve, then must be in liquid in hydraulic pump without in the full hydraulic power brake system of safety valve An external safety valve between press pump and replenishing valve, in order to avoid pipelines from bursting, hydraulic part damage caused by hydraulic system pressure is too high It etc. failure, but can thus increase unnecessary connecting pipe, increase cost；In minitype wheeled vehicle arrangement, due to installation Space is limited, can also cause the installation difficulty of external safety valve.Documents 1, application number：CN201120241167, invention name Claim：For the replenishing valve of motor vehicle braking system, including with first level passage, the second horizontal channel and the 3rd horizontal channel Valve casing, valve casing are provided with the oily oil inlet of pressure fuel pump, the first outlet towards downstream hydraulic system, second towards accumulator Outlet and oil return opening；Main valve plug and main spring are provided with first level passage, first throttle passage is provided with main valve plug；Oil inlet Connected by the first inner passage and throttling one-way valve with second outlet；Valve seat, lower limit check valve are provided with second horizontal channel Core, lower spring, upper limit nonreturn valve core and upper spring, valve seat is interior to be provided with pilot valve, and second outlet connects with the second horizontal channel, Oil return opening is connected by the second inner passage in valve casing with the second horizontal channel；Second horizontal channel of valve seat right-hand member passes through valve The second throttling passage in seat connects with first level passage.This case differs with documents architectural feature.

The content of the invention

Problem to be solved in the utility model be to provide one kind have Spool assembly, unidirectional valve assembly, ontrol valve assembly and The replenishing valve of safety valve, the purpose is to make product installing space densification, connecting pipe is reduced, reduces cost.

Technical solution of the present utility model is such：A kind of replenishing valve with safety valve, including ontrol valve assembly, Safety valve, main valve core assembly, unidirectional valve assembly, topping up valve body, it is characterised in that hydraulic oil passes through oil inlet P 8, actuator port A9, secondary hydraulic fluid port O13 enter main valve core assembly 4, and safety valve 3, main valve core assembly are provided between oil inlet P 8 and oil return inlet T 10 Unidirectional valve assembly 5 is housed between 4 and actuator port A9, connects and communicates between ontrol valve assembly 1 and main valve core assembly 4, safety valve 3rd, main valve core assembly 4, unidirectional valve assembly 5 and ontrol valve assembly 1 form replenishing valve 6, and replenishing valve 6 above has first boss 7, oil-feed Mouthful P8, actuator port A9 and oil return inlet T 10, replenishing valve 6 have above second boss 11, the first plug 3-1, the 3rd plug 4-2 and Second plug 4-1, replenishing valve 6 have the 3rd boss 12, secondary hydraulic fluid port O13 below, and there are the second plug 4-1, the 4th in the right side of replenishing valve 6 There are screwed hole 16 and plane 15, oil inlet P 8 and second in boss 14, the 3rd stud 5-1 and the first stud 1-1, the bottom surface of replenishing valve 6 Communicated between oil duct 18, the 3rd oil duct 19, oil pocket 20, there is steel ball 3-2 to be separated by between the oil duct 19 of oil pocket 20 and the 3rd, steel ball 3-2 There is spring base 3-3 bottom surface, there is spring 3-4 under spring base 3-3, there is the first plug 3-1, steel ball 3-2, spring under spring 3-4 Seat 3-3, spring 3-4 are installed in oil pocket 20, and O-ring 3-5 is provided between the outer end aperture of oil pocket 20 and the first plug 3-1.

The positive first boss 7 of topping up valve body 17 is provided with oil inlet P 8, actuator port A9 and oil return inlet T 10, replenishing valve 3rd boss 12 at the back side of body 17 is provided with secondary hydraulic fluid port O13, at the plug 4-1 of the 4th boss 14 of the right flank of topping up valve body 17 With the mounting hole that main valve core assembly 4 is provided with the plug 4-2 of the second boss 11 of left surface, the mounting hole of main valve core assembly 4 leads to The internal galleries of topping up valve body 17 are crossed to communicate with oil inlet P 8, secondary hydraulic fluid port O13, the 4th boss 14 of the right flank of topping up valve body 17 The mounting hole of ontrol valve assembly 1, control are provided with first stud 1-1 and at the second stud 1-2 of the second boss 11 of left surface The internal galleries and actuator port A9, oil return inlet T 10 and main valve core assembly 4 that the mounting hole of valve assembly 1 passes through switching valve 17 Mounting hole is communicated, and the installation of unidirectional valve assembly 5 is provided with the 3rd stud 5-1 of the 4th boss 14 of the right flank of topping up valve body 17 Hole, the oil inlet end of the mounting hole of unidirectional valve assembly 5 are communicated by the internal galleries of switching valve 17 with oil inlet P 8, and check valve is total Oil outlet end into 5 mounting hole is communicated by the internal galleries of switching valve 17 with actuator port A9, the left surface of topping up valve body 17 Second boss 11 the first plug 3-1 at be provided with the mounting hole of safety valve 3, the 3rd oil duct 19 of safety valve 3 passes through replenishing valve The second oil duct 18 inside body 17 communicates with oil inlet P 8, and the oil back chamber 20 of safety valve 3 passes through first inside topping up valve body 17 Oil duct 2 communicates with oil return inlet T 10, and the position of the plane 15 of the bottom of topping up valve body 17 is provided with screwed hole 16, is filled for installing fixation Liquid valve 6.

Safety valve 3 includes the first plug 3-1, steel ball 3-2, spring base 3-3, spring 3-4 and O-ring 3-5, wherein, spring 3-4, which is pressed in steel ball 3-2 by spring base 3-3 on the 3rd oil duct 19 of topping up valve body 17, forms sealing, prevents oil inlet P 8 Hydraulic oil flows back to fuel tank, and the first plug 3-1 is used for the decrement for adjusting spring 3-4, and O-ring 3-5 is used to seal topping up valve body 17 In hydraulic oil.

The utility model with routine replenishing valve compared with the advantages of be：Appearance and size does not change, and has product installation empty Between compact, simple in construction, safe and reliable, the advantages such as use cost is low.

Brief description of the drawings

Fig. 1 is a kind of fundamental diagram of the replenishing valve with safety valve of the utility model.

Fig. 2 is a kind of overall structure schematic front view of the replenishing valve with safety valve of the utility model.

Fig. 3 is a kind of overall structure left view schematic diagram of the replenishing valve with safety valve of the utility model.

Fig. 4 is a kind of overall structure schematic rear view of the replenishing valve with safety valve of the utility model.

Fig. 5, which is that a kind of overall structure of replenishing valve with safety valve of the utility model is right, regards schematic diagram.

Fig. 6 is a kind of overall structure schematic top plan view of the replenishing valve with safety valve of the utility model.

Fig. 7 is a kind of overall structure elevational schematic view of the replenishing valve with safety valve of the utility model.

Fig. 8 is the A-A schematic cross-sectional views that a kind of replenishing valve with safety valve of the utility model presses Fig. 3.

Fig. 1 is into Fig. 8, ontrol valve assembly 1, the first oil duct 2, safety valve 3, main valve core assembly 4, unidirectional valve assembly 5, topping up Valve 6, first boss 7, oil inlet P 8, actuator port A9, oil return inlet T 10, second boss 11, the second stud 1-2, the first plug 3- 1st, the 3rd plug 4-2, the 3rd boss 12, secondary hydraulic fluid port O13, the 4th boss 14, the first stud 1-1, the second plug 4-1, the 3rd Stud 5-1, plane 15, screwed hole 16, topping up valve body 17, the second oil duct 18, the 3rd oil duct 19, oil pocket 20, steel ball 3-2, spring Seat 3-3, spring 3-4, O-ring 3-5.

Embodiment

The utility model is further described below in conjunction with the accompanying drawings：

Embodiment 1, replenishing valve include topping up valve body, ontrol valve assembly, unidirectional valve assembly, main valve core assembly, safety valve.Control Valve assembly 1 processed is mounted in the lower right of the right flank of topping up valve body 6, and unidirectional valve assembly 5 is mounted in the lower right of the right flank of topping up valve body 17, Main valve core assembly 4 is mounted in the top of the right flank of topping up valve body 17 and the top of the left surface of topping up valve body 17；Safety valve 3 is mounted in filling The right of the left surface of liquid valve body 17.Safety valve 3 includes steel ball, spring, spring base, plug and O-ring.The front of topping up valve body 17 Provided with oil inlet, oil return opening and actuator port boss, for processing, arranging oil inlet P 8, oil return inlet T 10 and actuator port A9. The back side of topping up valve body 17 is provided with secondary hydraulic fluid port boss, and secondary hydraulic fluid port boss is used to process, arrange secondary hydraulic fluid port O.Topping up valve body 6 is right Side is provided with boss, for process the mounting hole of main valve core assembly 4, the mounting hole of unidirectional valve assembly 5, ontrol valve assembly 1 peace Fill hole；The oil-feed side of the mounting hole of unidirectional valve assembly 5 is communicated by the internal galleries of topping up valve body 17 with oil inlet P 8, fuel-displaced side and Actuator port A9 is communicated.The left surface of topping up valve body 17 is provided with boss, and mounting hole, the control valve for processing main valve core assembly 4 are total The mounting hole of mounting hole, safety valve into 1；The mounting hole of main valve core assembly 4 leads directly to topping up valve body 17 through topping up valve body 17 Right flank communicates with the mounting hole of the main valve core assembly 4 of the right flank boss of topping up valve body 17, and passes through the interior oil of topping up valve body 17 Road communicates with oil inlet P 8, secondary hydraulic fluid port O13；The mounting hole of ontrol valve assembly 1 leads directly to topping up valve body 17 through topping up valve body 17 Right flank communicated with the mounting hole of the ontrol valve assembly 1 of the right flank boss of topping up valve body 17, and by topping up valve body 17 inside Oil duct communicates with the mounting hole, actuator port A9 and oil return inlet T 10 of main valve core assembly 4；The oil-feed side of the mounting hole of safety valve 3 leads to The internal galleries of topping up valve body 17 are crossed to communicate with oil inlet P 8, the oil return side of the mounting hole of safety valve 3 by topping up valve body 17 inside Oil duct communicates with oil return inlet T 10.The bottom of topping up valve body 17 is provided with plane, for processing connection screw thread hole.

Embodiment 2, referring to figs. 1 to shown in Fig. 8, a kind of replenishing valve with safety valve, replenishing valve 6 include ontrol valve assembly 1, Safety valve 3, main valve core assembly 4, unidirectional valve assembly 5 and topping up valve body 17；Wherein, in the second plug of the right flank of topping up valve body 17 Load main valve core assembly 4 at 4-1 and at the 3rd plug 4-2 of left surface, at the first stud 1-1 of the right flank of topping up valve body 17 With loading ontrol valve assembly 1 at the second stud 1-2 of left surface, load at the 3rd stud 5-1 of the right flank of topping up valve body 17 Unidirectional valve assembly 5, loads safety valve 3 at the first plug 3-1 of the left surface of topping up valve body 17.

Shown in reference picture 2, oil inlet P 8, actuator port A9 are processed in the positive first boss 7 of topping up valve body 17 and is returned Hydraulic fluid port T10.

Shown in reference picture 3, it is total that main valve plug is processed at the 3rd plug 4-2 of the second boss 11 of the left surface of topping up valve body 17 Into 4 mounting hole；The peace of processing switching valve assembly 1 at the second stud 1-2 of the second boss 11 of the left surface of topping up valve body 17 Fill hole；The mounting hole of process safety valve 3, safety valve 3 at the first plug 3-1 of the second boss 11 of the left surface of topping up valve body 17 The 3rd oil duct 19 communicated by the second oil duct 18 inside topping up valve body 17 with oil inlet P 8, the oil back chamber 20 of safety valve 3 is logical The first oil duct 2 crossed inside topping up valve body 17 communicates with oil return inlet T 10.

Shown in reference picture 4, secondary hydraulic fluid port O13 is processed on the 3rd boss 12 at the back side of topping up valve body 17.

Shown in reference picture 5, it is total that main valve plug is processed at the second plug 4-1 of the 4th boss 14 of the right flank of topping up valve body 17 Into 4 mounting hole, with being communicated at the 3rd plug 4-2 of the second boss 11 of the left surface of topping up valve body 17, the peace of main valve core assembly 4 Dress hole is communicated by the internal galleries of topping up valve body 17 with oil inlet P 8, secondary hydraulic fluid port O13；The 4th of the right flank of topping up valve body 17 the The mounting hole of first stud 1-1 machining controls valve assembly 1 of boss 14, with the second boss 11 of the left surface of topping up valve body 17 Communicated at two stud 1-2, the internal galleries and actuator port A9, oil return of the mounting hole of ontrol valve assembly 1 by switching valve 17 Mouth T10, the mounting hole of main valve core assembly 4 communicate；Add at the 3rd stud 5-1 of the 4th boss 14 of the right flank of topping up valve body 17 Work order is to the mounting hole of valve assembly 5, and the oil inlet end of the mounting hole of unidirectional valve assembly 5 is by the internal galleries of switching valve 17 with entering Hydraulic fluid port P8 is communicated, the internal galleries and actuator port A9 phases that the oil outlet end of the mounting hole of unidirectional valve assembly 5 passes through switching valve 17 It is logical.

Shown in reference picture 7, in the position thread mill drilling 16 of the plane 15 of the bottom of topping up valve body 17, filled for installing fixation Liquid valve 6.

Shown in reference picture 8, safety valve 3 includes the first plug 3-1, steel ball 3-2, spring base 3-3, spring 3-4 and O-ring 3- 5, wherein, spring 3-4, which is pressed in steel ball 3-2 by spring base 3-3 on the oil duct 19 of topping up valve body 17, forms sealing, prevents oil-feed Mouth P8 hydraulic oil flows back to fuel tank, and the first plug 3-1 is used for the decrement for adjusting spring 3-4, and O-ring 3-5 is used to seal topping up Hydraulic oil in valve body 17 is to prevent leakage.

Embodiment 3, in hydraulic system course of normal operation, hydraulic pump oil-out connection oil inlet P 8 give system fuel feeding, peace Full valve 3 is closed, when actuator port A9 pressure is less than the lower limit set, the working condition of ontrol valve assembly 1 In right median function, the working condition of main valve core assembly 4 is in left median function, and oil inlet P 8 leads to secondary hydraulic fluid port O13 oil duct Throttling is formed, the hydraulic oil of oil inlet P 8 preferentially flows to actuator port A9 by unidirectional valve assembly 5, makes actuator port A9 pressure not Disconnected rise；When actuator port A9 pressure reaches the higher limit of setting, the working condition of switching valve assembly 1 switches to left position machine Can, the working condition of main valve core assembly 4 switches to right median function, completes topping up, and oil inlet P 8 leads to secondary hydraulic fluid port O13 oil duct Open completely.

Cause to lead when occurring the excessively low reason of hydraulic oil pollution, valve element clamping stagnation, extremely frigid zones oil viscosity in hydraulic system Valve element has little time to open, and when the pressure of oil inlet P 8 reaches the Opening pressure of safety valve 3, the hydraulic oil of oil inlet P 8 passes through oil duct 18th, the 3rd oil duct 19 is acted on the steel ball 3-2 of safety valve 3, and the hydraulic coupling acted on steel ball 3-2 is pressed by spring base 3-3 Contracting spring 3-4, safety valve 3 are opened, and the hydraulic oil of oil inlet P 8 is flowed into oil pocket 20, and passed through by oil duct 18, the 3rd oil duct 19 Oil duct 2 inside topping up valve body 17 flows to oil return inlet T 10, and at this moment the pressure of oil inlet P 8 will remain in the safety pressure of a setting Force value, play a part of protecting hydraulic system, prevent oil pipe burst, Hydraulic Elements damage.The safety valve of this direct acting type structure Fast response time, hydraulic shock can be reduced, safety valve 3 is opened, pressure release when can send a kind of lasting noise, remind operator Member's hydraulic system has broken down, and failure is handled.

Claims (3)

1. a kind of replenishing valve with safety valve, including ontrol valve assembly, safety valve, main valve core assembly, unidirectional valve assembly, topping up Valve, topping up valve body, it is characterised in that hydraulic oil passes through oil inlet P（8）, actuator port A（9）With secondary hydraulic fluid port O（13）Into master Spool assembly（4）, oil inlet P（8）With oil return inlet T（10）Between safety valve is installed（3）, main valve core assembly（4）With working oil Mouth A（9）Between unidirectional valve assembly is housed（5）, ontrol valve assembly（1）With main valve core assembly（4）Between connect and communicate, safety valve （3）, main valve core assembly（4）, unidirectional valve assembly（5）And ontrol valve assembly（1）Form replenishing valve（6）, replenishing valve（6）Above have One boss（7）, oil inlet P（8）, actuator port A（9）And oil return inlet T（10）, replenishing valve（6）There is second boss above（11）, One plug（3-1）, the 3rd plug（4-2）With the second plug（4-1）, replenishing valve（6）There is the 3rd boss below（12）, secondary hydraulic fluid port O（13）, replenishing valve（6）There is the second plug on the right side（4-1）, the 4th boss（14）, the 3rd stud（5-1）With the first stud（1-1）, Replenishing valve（6）There is screwed hole bottom surface（16）And plane（15）, oil inlet P（8）With the second oil duct（18）, the 3rd oil duct（19）, oil Chamber（20）Between communicate, oil pocket（20）With the 3rd oil duct（19）Between have steel ball（3-2）It is separated by, steel ball（3-2）There is spring bottom surface Seat（3-3）, spring base（3-3）It is beneath to have spring（3-4）, spring（3-4）It is beneath to have the first plug（3-1）, steel ball（3-2）, bullet Spring abutment（3-3）And spring（3-4）It is installed in oil pocket（20）In, oil pocket（20）Outer end aperture and the first plug（3-1）Between pacify Equipped with O-ring（3-5）.

A kind of 2. replenishing valve with safety valve according to claim 1, it is characterised in that topping up valve body（17）Positive One boss（7）It is provided with oil inlet P（8）, actuator port A（9）And oil return inlet T（10）, topping up valve body（17）The 3rd of the back side is convex Platform（12）It is provided with secondary hydraulic fluid port O（13）, topping up valve body（17）4th boss of right flank（14）Plug（4-1）Place and left side The second boss in face（11）Plug（4-2）Place is provided with main valve core assembly（4）Mounting hole, main valve core assembly（4）Mounting hole Pass through topping up valve body（17）Internal galleries and oil inlet P（8）, secondary hydraulic fluid port O（13）Communicate, topping up valve body（17）The of right flank Four boss（14）The first stud（1-1）Place and the second boss of left surface（11）The second stud（1-2）Place is provided with control valve Assembly（1）Mounting hole, ontrol valve assembly（1）Mounting hole pass through switching valve（17）Internal galleries and actuator port A （9）, oil return inlet T（10）With main valve core assembly（4）Mounting hole communicate, topping up valve body（17）4th boss of right flank（14）'s 3rd stud（5-1）Place is provided with unidirectional valve assembly（5）Mounting hole, unidirectional valve assembly（5）Mounting hole oil inlet end by cutting Change valve body（17）Internal galleries and oil inlet P（8）Communicate, unidirectional valve assembly（5）The oil outlet end of mounting hole pass through switching valve Body（17）Internal galleries and actuator port A（9）Communicate, topping up valve body（17）The second boss of left surface（11）The first plug （3-1）Place is provided with safety valve（3）Mounting hole, safety valve（3）The 3rd oil duct（19）Pass through topping up valve body（17）Internal the Two oil ducts（18）With oil inlet P（8）Communicate, safety valve（3）Oil back chamber（20）Pass through topping up valve body（17）The first internal oil Road（2）With oil return inlet T（10）Communicate, topping up valve body（17）The plane of bottom（15）Position be provided with screwed hole（16）, for pacifying The fixed replenishing valve of dress（6）.

A kind of 3. replenishing valve with safety valve according to claim 1, it is characterised in that safety valve（3）Including the first plug （3-1）, steel ball（3-2）, spring base（3-3）, spring（3-4）And O-ring（3-5）, spring（3-4）Pass through spring base（3-3） Steel ball（3-2）It is pressed in topping up valve body（17）The 3rd oil duct（19）On.