CN209012161U - A kind of Novel foaming machine prefill valve - Google Patents
A kind of Novel foaming machine prefill valve Download PDFInfo
- Publication number
- CN209012161U CN209012161U CN201821672931.6U CN201821672931U CN209012161U CN 209012161 U CN209012161 U CN 209012161U CN 201821672931 U CN201821672931 U CN 201821672931U CN 209012161 U CN209012161 U CN 209012161U
- Authority
- CN
- China
- Prior art keywords
- oil
- spool
- valve
- valve body
- stepped hole
- 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.)
- Expired - Fee Related
Links
- 238000005187 foaming Methods 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 16
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model provides a kind of Novel foaming machine prefill valve, including valve body, spool and valve rod, the spool is set in valve body and the side wall of spool and the inner wall of valve body are in sealing contact, the middle part diameter of spool, which concaves, is formed with oil-feed tank with valve interior wall generation gap, oil outlet chamber is formed between the bottom surface of spool and the inner wall of valve body, the side wall of the valve body is equipped with oil inlet and oil outlet, oil inlet is set at oil-feed tank, oil outlet is connected to oil outlet chamber, the spool is equipped with the oil circuit for being connected to oil-feed tank and oil outlet chamber, the valve rod is the inverted T-shaped structure being made of sealing cover and the mounting rod above sealing cover, the sealing cover is set to the end of oil circuit for blocking oil circuit.The utility model structure is simple, installs and uses easy to maintenance, effectively reduces the failure rate of prefill valve；The design of multiple tracks oil circuit realizes big flow oil inlet, improves oil-filled efficiency.
Description
Technical field
The utility model relates to prefill valve technical fields, and in particular to a kind of Novel foaming machine prefill valve.
Background technique
The master cylinder of large-sized hydraulic press is relatively large in diameter, and stroke is long, thus its cylinder internal volume is larger, and when work only leans on high pressure oil
Oil pump feed is travel speed needed for being difficult to reach hydraulic press, has a reasonable idle running fast to make hydraulic press in use
Drop and backhaul promote speed, and it is essential for carrying out quick filling liquid to oil cylinder using prefill valve.Currently, hydraulic press use is filled
Liquid valve arrangement form is mostly normally closed type, poppet valve and double-spring structure, but these existing prefill valve high failure rates, and maintenance is not
Just.
Summary of the invention
The purpose of this utility model is place against the above deficiency, provide it is a kind of easy to repair, stable working it is novel
Foaming machine prefill valve.
The utility model solves scheme used by technical problem: a kind of Novel foaming machine prefill valve, including valve body, valve
Core and valve rod, the spool is set in valve body and the side wall of spool and the inner wall of valve body are in sealing contact, and the middle part diameter of spool is inside
It is recessed to be formed with oil-feed tank with valve interior wall generation gap, oil outlet chamber is formed between the bottom surface of spool and the inner wall of valve body, it is described
The side wall of valve body is equipped with oil inlet and oil outlet, and oil inlet is set at oil-feed tank, and oil outlet is connected to oil outlet chamber, the spool
It is equipped with the oil circuit for being connected to oil-feed tank and oil outlet chamber, the valve rod is by sealing cover and the mounting rod above sealing cover
The inverted T-shaped structure of composition, the sealing cover are set to the end of oil circuit for blocking oil circuit；
The mounting hole for installing valve rod is equipped in the spool, what the mounting hole was from top to bottom successively successively decreased by aperture
First step hole, second step hole, third stepped hole and the 4th stepped hole composition, the aperture of the 4th stepped hole are less than the straight of hydraulic fluid port
Diameter, the upper end of the mounting rod, which passes through the 4th stepped hole rear enclosure and is equipped with the reset spring being located in third stepped hole and is located at, to be resetted
The diameter of locking nut above spring, locking nut and reset spring is all larger than the aperture of the 4th stepped hole, locking nut and
The diameter of reset spring is slightly less than the aperture of third stepped hole, is equipped with capping by screw on the first step hole.
Further, in order to realize big flow oil inlet；The oil circuit include annular be distributed in spool several first
Oil duct, several second oil ducts and the hydraulic fluid port below spool, the first oil duct are extended radially inwardly by oil-feed tank through 90 °
Oil port is extended to after being bent downwardly, the second oil duct is tilted down by oil-feed tank extends to oil port, and the capping is set to oil
At mouthful.
Further, the opening design of valve body, it is convenient that replacement is repaired to internal spool；The top of the valve body is set
There is an opening, upper cover is equipped with by screw in the opening, sealing ring is equipped between the upper cover and valve body.
Further, the opening design of spool guarantees that the closure of spool is made convenient for repairing replacement to internal valve rod
With；Sealing ring is equipped between the capping and first step hole.
Further, for the ease of dismounting to upper cover, and large capacity oil inlet is realized；The upper lid is equipped with hanging ring, upper cover
On be additionally provided with the second oil inlet.
Further, in order to guarantee effect of the reset spring to valve rod, guarantee that valve rod blocks on hydraulic fluid port always；The peace
The flat shim being also arranged with below reset spring on dress bar, the upper end of the mounting rod is additionally provided with for pacifying reset spring
Stop nut and split pin on screw rod.
For the prior art, the utility model has the advantage that the utility model structure is simple, installs and uses dimension
The conveniently setting of upper cover is repaired, the opening design of valve body is realized, convenient for carrying out repair and replacement to spool；The setting of capping, realizes
The opening of spool designs, convenient for carrying out repair and replacement to valve rod；Valve rod is mounted in spool by nut, when reset spring is in length
When the elastic force that phase acts on valve rod after reduces, upper cover and capping can be removed, is protected by rotating nuts up and down adjustment valve rod
Card sealing cover blocks on hydraulic fluid port always, guarantees the normal work of prefill valve, effectively reduces the failure rate of prefill valve；Multiple tracks oil circuit
Design, realize big flow oil inlet, improve oil-filled efficiency.
Detailed description of the invention
The utility model is described in further detail in conjunction with the embodiments with reference to the accompanying drawings:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the working state schematic representation of the utility model.
In figure: 1- valve body；11- oil inlet；12- oil outlet chamber；13- oil outlet；2- upper cover；21- hanging ring；The second oil inlet of 22-
Mouthful；3- spool；31- first step hole；32- third stepped hole；The 4th stepped hole of 33-；34- oil-feed tank；The first oil duct of 35-；36-
Second oil duct；37- hydraulic fluid port；4- valve rod；41- sealing cover；42- mounting rod；5- reset spring；6- locking nut；7- stop nut；
8- capping；9- split pin.
Specific embodiment
The content of the present invention is described in detail with specific embodiment with reference to the accompanying drawings of the specification:
As shown in Figs. 1-2, the present embodiment provides a kind of Novel foaming machine prefill valve, including valve body 1, spool 3 and valve rod 4,
The spool 3 be set to valve body 1 in and the side wall and valve body 1 of spool 3 inner wall it is in sealing contact, the middle part diameter of spool 3 concave and
1 inner wall of valve body generates gap and is formed with oil-feed tank 34, and oil outlet chamber 12, institute are formed between the bottom surface of spool 3 and the inner wall of valve body 1
The side wall for stating valve body 1 is equipped with oil inlet 11 and oil outlet 13, and oil inlet 11 is set at oil-feed tank 34, oil outlet 13 and oil outlet chamber
12 connections, the spool 3 are equipped with the oil circuit for being connected to oil-feed tank 34 and oil outlet chamber 12, and the valve rod 4 is by sealing cover 841
The inverted T-shaped structure formed with the mounting rod 42 for being set to 841 top of sealing cover, the end that the sealing cover 841 is set to oil circuit is used for
Block oil circuit；
The mounting hole for installing valve rod 4 is equipped in the spool 3, the mounting hole is from top to bottom successively successively decreased by aperture
First step hole 31, second step hole, third stepped hole 32 and the 4th stepped hole 33 composition, the aperture of the 4th stepped hole 33 is small
In the diameter of hydraulic fluid port 37, the upper end of the mounting rod 42, which passes through 33 rear enclosure of the 4th stepped hole and is equipped with, to be located in third stepped hole 32
The diameter of reset spring 5 and the locking nut 6 above reset spring 5, locking nut 6 and reset spring 5 is all larger than the 4th
The diameter of the aperture of stepped hole 33, locking nut 6 and reset spring 5 is slightly less than the aperture of third stepped hole 32, the First
Capping 8 is equipped with by screw on rank hole 31.
Further, in order to realize big flow oil inlet；The oil circuit include annular be distributed in spool 3 several first
Oil duct 35, several second oil ducts 36 and the hydraulic fluid port 37 set on the lower section of spool 3, the first oil duct 35 from oil-feed tank 34 it is radial to
Interior extension extends at hydraulic fluid port 37 after 90 ° are bent downwardly, and the second oil duct 36 is tilted down by oil-feed tank 34 extends to hydraulic fluid port
At 37, the capping 8 is set at hydraulic fluid port 37.
In the present embodiment, the opening design of valve body 1, it is convenient that replacement is repaired to internal spool 3；The valve body 1
Top be equipped with opening, upper cover 3 is equipped with by screw in the opening, equipped with sealing ring between the upper cover 3 and valve body 1.
In the present embodiment, the opening design of spool 3 guarantees spool 3 convenient for repairing replacement to internal valve rod 4
Plugging action；Sealing ring is equipped between the capping 8 and first step hole 31.
In the present embodiment, for the ease of dismounting to upper cover 3, large capacity oil inlet is realized；The upper cover 3 is equipped with hanging ring
21, the second oil inlet 22 is additionally provided in upper cover 3.
In the present embodiment, in order to guarantee effect of the reset spring 5 to valve rod 4, guarantee that valve rod 4 is blocked always in hydraulic fluid port 37
On；The flat shim positioned at 5 lower section of reset spring is also arranged on the mounting rod 42, the upper end of the mounting rod 42 is additionally provided with use
In the stop nut 7 and split pin 9 that are mounted on reset spring 5 on screw rod.
Specific implementation process: when generating negative pressure in oil outlet chamber 12, will drive 4 compression reseting spring 5 of valve rod and move downward,
Hydraulic fluid port 37 is opened, and the oil in fuel tank, through the first oil duct 35 or the second oil duct 36, flows to oil cylinder from oil outlet 13 from oil inlet 11, right
Oil cylinder carries out filling liquid, and the part oil in fuel tank can also be flowed into valve body 1 from the second oil inlet 22 of upper cover 3, be flowed through oil outlet 13
Into the oil pocket of oil cylinder, quick oil feeding is realized, after oil inlet, valve rod 4 moves upwards under the action of reset spring 5, close
The state for blocking hydraulic fluid port 37 is replied in capping 841.
The above description is only the embodiments of the present invention, is not intended to limit the scope of patent protection of the utility model,
Equivalent structure or equivalent flow shift made by using the description of the utility model and the drawings, is directly or indirectly transported
Used in other related technical areas, it is also included in the patent protection scope of the utility model.
Claims (6)
1. a kind of Novel foaming machine prefill valve, it is characterised in that: including valve body, spool and valve rod, the spool is set in valve body
And the side wall of spool and the inner wall of valve body are in sealing contact, the middle part diameter of spool concave with valve interior wall generate gap be formed with into
Oil groove, is formed with oil outlet chamber between the bottom surface of spool and the inner wall of valve body, the side wall of the valve body is equipped with oil inlet and fuel-displaced
Mouthful, oil inlet is set at oil-feed tank, and oil outlet is connected to oil outlet chamber, and the spool is equipped with for being connected to oil-feed tank and oil outlet chamber
Oil circuit, the valve rod is the inverted T-shaped structure being made of sealing cover and the mounting rod above sealing cover, and the sealing cover is set
In the end of oil circuit for blocking oil circuit；
Be equipped with the mounting hole for installing valve rod in the spool, the mounting hole from top to bottom successively successively decreased by aperture first
Stepped hole, second step hole, third stepped hole and the 4th stepped hole composition, the aperture of the 4th stepped hole are less than the diameter of hydraulic fluid port,
The upper end of the mounting rod, which passes through the 4th stepped hole rear enclosure and is equipped with the reset spring being located in third stepped hole and is located at, resets bullet
The diameter of locking nut above spring, locking nut and reset spring is all larger than the aperture of the 4th stepped hole, locking nut and multiple
The diameter of position spring is slightly less than the aperture of third stepped hole, is equipped with capping by screw on the first step hole.
2. Novel foaming machine prefill valve according to claim 1, it is characterised in that: the oil circuit includes that annular is distributed in valve
Several first oil ducts, several second oil ducts and the hydraulic fluid port below spool of in-core, the first oil duct is by oil-feed tank
It extends radially inwardly and extends to oil port after 90 ° are bent downwardly, the second oil duct is tilted down by oil-feed tank extends to hydraulic fluid port
Place, the capping are set to oil port.
3. Novel foaming machine prefill valve according to claim 1, it is characterised in that: the top of the valve body is equipped with opening,
Upper cover is equipped with by screw in the opening, sealing ring is equipped between the upper cover and valve body.
4. Novel foaming machine prefill valve according to claim 1, it is characterised in that: between the capping and first step hole
Equipped with sealing ring.
5. Novel foaming machine prefill valve according to claim 3, it is characterised in that: the upper lid is equipped with hanging ring, upper cover
On be additionally provided with the second oil inlet.
6. Novel foaming machine prefill valve according to claim 1, it is characterised in that: be also arranged with and be located on the mounting rod
Flat shim below reset spring, the upper end of the mounting rod are additionally provided with the locking spiral shell for being mounted on reset spring on screw rod
Female and split pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821672931.6U CN209012161U (en) | 2018-10-16 | 2018-10-16 | A kind of Novel foaming machine prefill valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821672931.6U CN209012161U (en) | 2018-10-16 | 2018-10-16 | A kind of Novel foaming machine prefill valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209012161U true CN209012161U (en) | 2019-06-21 |
Family
ID=66838638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821672931.6U Expired - Fee Related CN209012161U (en) | 2018-10-16 | 2018-10-16 | A kind of Novel foaming machine prefill valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209012161U (en) |
-
2018
- 2018-10-16 CN CN201821672931.6U patent/CN209012161U/en not_active Expired - Fee Related
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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: 20190621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |