CN207004967U - A kind of one-way throttle valve and the tractor of one-way throttle valve is installed suppresses device - Google Patents
A kind of one-way throttle valve and the tractor of one-way throttle valve is installed suppresses device Download PDFInfo
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- CN207004967U CN207004967U CN201720966212.4U CN201720966212U CN207004967U CN 207004967 U CN207004967 U CN 207004967U CN 201720966212 U CN201720966212 U CN 201720966212U CN 207004967 U CN207004967 U CN 207004967U
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Abstract
The utility model discloses a kind of one-way throttle valve, including：Valve body, valve body is interior to be provided with the first fluid hole being sequentially communicated, leads to oily cavity and the second fluid hole；Throttle valve plate, throttle valve plate, which is located at, to be led in oily cavity；Wherein, throttle valve plate includes valve block body, is arranged at supporting part of the valve block body close to the one end in the first fluid hole, and a throttle orifice and at least one oil-through-hole are provided with valve block body.A kind of tractor for being provided with one-way throttle valve suppresses device, and one-way throttle valve is arranged at the hydraulic circuit for suppressing device；One-way throttle valve is located at the fuel feed hole of the cavity of resorption for the lift cylinder for suppressing device, and the first fluid hole of one-way throttle valve connects with the fuel feed hole of the cavity of resorption of lift cylinder.The utility model is avoided and throttles after long-term use ineffective, and be applied to tractor and suppress in device, remain to realize accurate control decrease speed after can ensureing long-time use, avoid farm implements from damaging by improving the structure of one-way throttle valve.
Description
Technical field
It the utility model is related to throttle valve technology field, more particularly to a kind of one-way throttle valve and one-way throttle valve be installed
Tractor suppress device.
Background technology
The one-way throttle valve of use of the prior art realizes the purpose of throttling by the piston movement of inside mostly, still
After a long time use, piston can produce loosening, cause restriction effect bad and same one-way throttle valve volume, lead to oil mass compared with
It is small.
In the tractor in modern times, it can generally be equipped with and suppress lifter to lift or decline farm implements, suppress lifter
The outer lift arm of lifter is suppressed to drive using hydraulic pressure, can be due to self gravitation when turning to decline by lifting or neutral condition
Shake is produced when the power provided with hydraulic pressure to decline, decline impulsive force is big, in turn results in farm implements damage.So can be in hydraulic pressure
One-way throttle valve is set in loop, but foregoing one-way throttle valve is used in lifter is suppressed, makes to suppress lifter in length
After time use, lead to not accurately control decrease speed, so as to cause the damage of farm implements.
Therefore, the applicant proposes the application, to solve above-mentioned technical problem.
The content of the invention
The purpose of this utility model is to provide a kind of one-way throttle valve, and it is larger and after avoiding long-time use can to lead to oil mass
Cause restriction effect bad, a kind of tractor for being provided with one-way throttle valve is provided again and suppresses device, can be after long-time use
Remain to realize accurate control decrease speed, avoid farm implements from damaging.
The technical scheme that the utility model is provided is as follows：
A kind of one-way throttle valve, including：Valve body, the valve body be provided be sequentially communicated the first fluid hole, lead to oily cavity and
Second fluid hole；Throttle valve plate, the throttle valve plate are located in the logical oily cavity；Wherein, throttle valve plate include valve block body,
Be arranged at supporting part of the valve block body close to the one end in the first fluid hole, be provided with the valve block body throttle orifice and
At least one oil-through-hole；When throttle valve plate is in throttle, the throttle valve plate is bonded close to the one end in the second fluid hole
On the first inner face of the logical oily cavity, the oil-through-hole is blocked by first inner face, and fluid is from the throttle orifice
Flow to the second fluid hole；When throttle valve plate is in normal circulation status, the supporting part of the throttle valve plate is close to first
The one end in fluid hole is fitted on the second inner face of the logical oily cavity, and fluid flows to from the throttle orifice and oil-through-hole respectively
The first fluid hole.
In said structure, set one to lead to oily cavity in valve body, and a throttle valve plate is set in oily cavity leading to, use
To realize throttling.When being throttled, fluid is passed through in logical oily cavity from the first fluid hole, by throttle valve plate top to logical oily cavity
On first inner face in the second fluid hole so that fluid is only from throttle orifice by and then realizing restriction effect.When normal
During circulation, fluid enters from the second fluid hole and led in oily cavity, and it is close that throttle valve plate top to supporting part is fitted in into logical oily cavity
On second inner face in the first fluid hole, fluid, which enters, to be led in oily cavity, and flows to the first fluid by throttle orifice and oil-through-hole
Hole, without restriction effect.The structure is floated in logical oily cavity with throttle valve plate and replaces piston of the prior art, will not be produced
The phenomenon that growth time is used and loosened, and because this structure need not set other supplementary structures, so structure is simpler,
For the one-way throttle valve of same volume, it is bigger to lead to oil mass.
Preferably, there is logical oil-gap between the side wall of the valve block body and the logical oily cavity；At throttle valve plate
When throttle, the throttle valve plate is fitted in the first inner face of the logical oily cavity close to the one end in the second fluid hole
On, the oil-through-hole and logical oil-gap are blocked by first inner face, and fluid flows to second fluid from the throttle orifice
Hole；When throttle valve plate is in normal circulation status, the supporting part of the throttle valve plate is bonded close to the one end in the first fluid hole
On the second inner face of the logical oily cavity, fluid flows to described from the throttle orifice, oil-through-hole and logical oil-gap respectively
One fluid hole.
In said structure, by the way that logical oil-gap will be provided between valve block body and logical oily cavity, section can be further increased
Valve block is flowed in normal circulation status, the logical oil mass of one-way throttle valve.
Preferably, the sectional dimension in the first fluid hole is less than the sectional dimension of the supporting part；The supporting part bag
Several support blocks are included, the support block is uniformly arranged on valve block body close to the one end in the first fluid hole along circumferential direction；
The adjacent support block collectively forms the oil passage that fuel feeding liquid passes through.
Preferably, the oil-through-hole is staggered with support block；The throttle orifice is located at the center of the valve block body.
In said structure, the sectional dimension in the first fluid hole is designed to the sectional dimension less than supporting part, can be ensured
Supporting part can prop up the second inner face of logical oily cavity when throttle valve plate is in normal circulation status, and then be stayed for oil-through-hole
Go out the oil passage that fuel feeding liquid passes through, ensure the normal circulation of fluid.
Preferably, the valve body is split type to be divided into upper valve body and lower valve body；The lower surface of the upper valve body is provided with accommodating
Groove, the upper surface of the lower valve body cooperatively form the logical oily cavity with the storage tank；The upper surface of the upper valve body is provided with
The second fluid hole, the lower surface of the lower valve body are provided with the first fluid hole.
It is split type by the way that valve body is arranged in said structure, manufacturing and more facilitating in assembling process.
Preferably, the lower surface of the upper valve body and the junction of lower valve body are provided with the second welding groove, the lower valve body
The first welding groove is provided with the junction of the lower surface of the upper valve body, first welding groove leads to the second welding groove
Cross and be welded to connect.
In said structure, by being provided with the first welding groove and the second welding slope in the junction of upper valve body and lower valve body
Mouthful, it is not in the big phenomenon of local stress after welding to enable to upper valve body and lower valve body.
A kind of tractor for being provided with one-way throttle valve suppresses device, and the one-way throttle valve is arranged on the liquid for suppressing device
Push back at road；The one-way throttle valve is located at the fuel feed hole of the cavity of resorption for the lift cylinder for suppressing device, the one-way throttle valve
The first fluid hole connected with the fuel feed hole of the cavity of resorption of the lift cylinder.
In said structure, one-way throttle valve is arranged at the fluid loop for suppressing device, enables to suppressing device
It is less by the fluid amount of one-way throttle valve during decline, and then decrease speed is stable, than year, more unexpected rapid decrease causes agriculture
Tool damage.
A kind of one-way throttle valve provided by the utility model and the tractor of one-way throttle valve is installed suppresses device, can
Bring following beneficial effect：
A kind of new one-way throttle valve arrangement is provided in the utility model, it is simple in construction, wherein, throttle valve plate can
Floated leading in oily cavity, and then be respectively at throttle or normal circulation status, eliminated commonly used in the prior art
The structures such as piston, so as to avoid because phenomena such as loosening causes the bad situation of oil-saving effect.In the case of same volume, by
In being not required to other supplementary structures, so logical oil mass is bigger.The utility model, which additionally provides, a kind of is provided with dragging for one-way throttle valve
Device is suppressed in machine drawing, by using the one-way throttle valve in the utility model, can remain to realize accurate control after long-time use
Decrease speed processed, avoids farm implements from damaging.
Brief description of the drawings
Below by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, to one-way throttle valve and is provided with
Above-mentioned characteristic, technical characteristic, advantage and its implementation that the tractor of one-way throttle valve suppresses device are further described.
Fig. 1 is the structural representation under the throttle of one-way throttle valve of the present utility model；
Fig. 2 is the structural representation under the normal circulation status of one-way throttle valve of the present utility model；
Fig. 3 is the structural representation of the throttle valve plate in Fig. 1；
Fig. 4 is the structural representation for suppressing device for being provided with the one-way throttle valve shown in Fig. 1.
Drawing reference numeral explanation：
1- valve bodies, 1a- upper valve bodies, 1b- lower valve bodies, 2- lead to oily cavity, and 2a- leads to oil-gap, 3- throttle valve plates, 3a- valve blocks
Body, 3b- supporting parts, 3c- throttle orifices, 3d- oil-through-holes, the first fluid of 4- hole, the second fluid of 5- hole, 6- oil cylinders cavity of resorption connection oil
Pipe, 7- one-way throttle valves, 8- oil cylinder mounting brackets, 9- rear axle assys, 10- lifter assemblies, 11- hydraulic valve oil inlet pipes, 12- liquid
Pressure valve mounting bracket, 13- lifting connection cylinder upper cavity oil oil inlet pipes, 14- hydraulic multitandem valves, 15- hydraulic valve oil return pipes, 16- lifting connection
Oil cylinder cavity of resorption oil inlet pipe, the outer lift arms of 17-, 18- lift cylinders, 19- cylinder upper cavity oil connected pipes, fluid stream under A- throttles
Dynamic direction, fluid flow direction under the normal circulation status of B-.
Embodiment
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, accompanying drawing will be compareed below
Illustrate specific embodiment of the present utility model.It should be evident that drawings in the following description are only of the present utility model one
A little embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these
Accompanying drawing obtains other accompanying drawings, and obtains other embodiments.
To make simplified form, the part related to the utility model is only schematically show in each figure, they are simultaneously
Its practical structures as product is not represented.
【Embodiment 1】
Embodiment 1 discloses a kind of embodiment of one-way throttle valve, including：Valve body and throttle valve plate, on valve body
Provided with the first fluid hole being sequentially communicated, lead to oily cavity and the second fluid hole.Throttle valve plate, which is located at, to be led in oily cavity, and can be
Lead in oily cavity and float.Throttle valve plate includes valve block body, is arranged at support of the valve block body close to the one end in the first fluid hole
Portion and the throttle orifice and several oil-through-holes being arranged on valve block body.
When throttle valve plate is in throttle, throttle valve plate is close to the one end in the second fluid hole with leading to the first of oily cavity
Inner face is bonded, and oil-through-hole is blocked by the first inner face of logical oily cavity, and fluid flows to the second fluid hole from throttle orifice.
When throttle valve plate is in normal circulation status, the supporting part of throttle valve plate close to the one end in the first fluid hole and leads to
The second inner face fitting of oily cavity, fluid flow to the first fluid hole from throttle orifice and oil-through-hole respectively.
By setting the throttle valve plate to float to realize restriction effect in the present embodiment, due to without using piston etc., institute
To be not in the phenomenon loosened occur after long-term use, and due to saving other supplementary structures, so logical oil mass is bigger.
【Embodiment 2】
As depicted in figs. 1 and 2, embodiment 2 is on the basis of embodiment 1, and the throttle valve plate 3 of embodiment 2 is with leading to oily cavity 2
Between there is logical oil-gap 2a.
The working condition of one-way throttle valve is illustrated below：
When throttle valve plate 3 is in throttle, fluid enters from the first fluid hole 4 and led in oily cavity 2, leads to oily cavity 2
Throttle valve plate 3 is fitted on the first inner face of logical oily cavity 2 by interior fluid close to the one end in the second fluid hole 5, and it is empty to lead to oil
First inner face of chamber 2 blocks oil-through-hole 3d and logical oil-gap 2a so that fluid circulates from throttle orifice 3c, under throttle
Fluid flow direction A is as shown in Figure 1.
When throttle valve plate 3 is in normal circulation status, fluid enters from the second fluid hole 5 and led in oily cavity 2, and it is empty to lead to oil
The supporting part 3b of throttle valve plate 3 is fitted in the second of logical oily cavity 2 by the fluid in chamber 2 close to the one end in the first fluid hole 4
On inner face so that fluid in the throttle orifice 3c of throttle valve plate 3, oil-through-hole 3d and logical oil-gap 2a respectively by circulating, normally
Fluid flow direction B is as shown in Figure 2 under circulation status.
In the present embodiment, by being designed to lead to the knot with throttle valve plate 3 in oily cavity 2 by the structure of one-way throttle valve
Structure, floated by fluid throttle valve plate 3, and then realize throttle or normal circulation status, compared to using piston
Etc. structure, phenomena such as being not in loosening.And it is relatively simple for structure, without other unnecessary structures, therefore and prior art
One-way throttle valve there is identical structure in the case of, lead to oil mass it is larger.Compared with the scheme in embodiment 1, by being provided with more
Logical oil-gap 2a so that under normal circulation status, it is bigger to lead to oil mass.
【Embodiment 3】
As shown in Figure 1, 2, 3, for embodiment 3 on the basis of embodiment 2, the throttle orifice 3c of embodiment 3 is located at valve block body
3a center, in addition circumferential directions of 4 oil-through-hole 3d along valve block body 3a be evenly arranged, the section chi in the second fluid hole 5
The very little sectional dimension less than throttle valve plate 3, when throttle valve plate 3 is in throttle, lead to the first inner face closure of oily cavity 2
Live in 4 oil-through-hole 3d and logical oil-gap 2a, the throttle orifice 3c for being only located at valve block body 3a centers connect with the second fluid hole 5.
Specifically, supporting part 3b is 4 pieces of curved support blocks, support block is staggered with oil-through-hole 3d, the first fluid hole 4
Sectional dimension is less than supporting part 3b sectional dimension, and when throttle valve plate 3 is in normal circulation status, supporting part 3b props up logical oil
Second inner face of cavity 2, forms oil passage between adjacent supports block, and oil passage is throttle orifice 3c, oil-through-hole 3d and logical
Oil-gap 2a provides the passage that fuel feeding liquid passes through, and ensures the smooth circulation of fluid.
In other specific embodiments, oil-through-hole 3d quantity is not limited to 4 or other quantity, as long as with
The consistent simultaneously interlaced arrangement of the quantity of support block, here is omitted.
【Embodiment 4】
As illustrated in fig. 1 and 2, for embodiment 4 on the basis of embodiment 1~3, the valve body 1 of embodiment 4 is split type, is divided into
Upper valve body 1a and lower valve body 1b, wherein, upper valve body 1a lower surface is provided with storage tank, the upper surface of the storage tank and lower valve body 1b
Logical oily cavity 2 is cooperatively formed, upper valve body 1a is provided with the second fluid hole 5, and lower valve body 1b is provided with the first fluid hole 4.
It is split type by the way that valve body 1 is arranged to, manufacturing and more facilitating in assembling process.
【Embodiment 5】
As illustrated in fig. 1 and 2, embodiment 5 is on the basis of embodiment 4, the upper valve body 1a of embodiment 5 lower surface and lower valve
Body 1b junction is provided with the second welding groove, and lower valve body 1b upper surface is provided with the first welding slope with upper valve body 1a junction
Mouthful, upper valve body 1a and lower valve body 1b is welded to connect and polished with the second welding groove by the first welding groove.Such way
Weld strength can be ensured.
【Embodiment 6】
As shown in figure 4, embodiment 6, which discloses a kind of tractor for being provided with one-way throttle valve, suppresses device, including it is above-mentioned
Any one one-way throttle valve in embodiment 1~5, in addition to：Rear axle assy 9, the lifter assembly being arranged on rear axle assy 9
10th, with lifting outer lift arm 17, the hydraulic valve mounting bracket by bolt installed in the top of lifter assembly 10 that assembly is connected
12nd, the hydraulic multitandem valve 14 in hydraulic valve mounting bracket 12 is arranged on by bolt, hydraulic multitandem valve 14 enters provided with hydraulic valve
Oil pipe 11 and hydraulic valve oil return pipe 15, the oil cylinder mounting bracket 8 on rear axle assy 9.Also include lift cylinder 18, lifted
Oil cylinder 18 is connected by bearing pin with outer lift arm 17 and oil cylinder mounting bracket 8 respectively.Wherein, the first fluid of one-way throttle valve 7
Hole connects with the fuel feed hole of the cavity of resorption of lift cylinder 18, and the second fluid hole and the oil cylinder cavity of resorption connected pipes 6 of one-way throttle valve 7 connect
It is logical.
The lifting connection of hydraulic multitandem valve 14 pass sequentially through lifting connection oil cylinder cavity of resorption oil inlet pipe 16, oil cylinder cavity of resorption connected pipes 6,
One-way throttle valve 7 connects with the cavity of resorption of lift cylinder 18.The lifting connection of hydraulic multitandem valve 14 is also passed sequentially through on lifting connection oil cylinder
Chamber oil inlet pipe 13, cylinder upper cavity oil connected pipes 19 connect with the epicoele of lift cylinder 18.
The workflow for suppressing device of the tractor of the present embodiment is as follows：
When farm implements are lifted：Hydraulic multitandem valve 14 is in lifting position, and fluid is more into hydraulic valve by hydraulic valve oil inlet pipe 11
In the valve of road, and pass sequentially through and the lifting connection oil cylinder cavity of resorption oil inlet pipe 16 of lifting connection connection, oil cylinder cavity of resorption connected pipes 6, unidirectional
Choke valve 7 enters the cavity of resorption of lift cylinder 18, and now, one-way throttle valve 7 is in normal circulation status, equivalent to one section oil pipe,
Piston rod in lift cylinder 18 extends in the presence of the cavity of resorption oil pressure of lift cylinder 18, drives the outer dextrorotation of lift arm 17
Turn, so as to drive farm implements to be lifted, while the epicoele fluid of lift cylinder 18 passes through on cylinder upper cavity oil connected pipes 19, lifting connection oil cylinder
Chamber oil inlet pipe 13 enters hydraulic multitandem valve 14, and the hydraulic valve oil return pipe 15 by being connected with the oil return opening of hydraulic multitandem valve 14 is carried out
Oil return.
When farm implements decline：Hydraulic multitandem valve 14 is in lower decrease, and now fluid is more into hydraulic pressure through hydraulic valve oil inlet pipe 11
In road valve 14, then it is connected with lifting connection cylinder upper cavity oil oil inlet pipe 13 by the pressure output of hydraulic multitandem valve 14, fluid enters
The epicoele of lift cylinder 18 so that piston rod shortens, meanwhile, the fluid in the cavity of resorption of lift cylinder 18 passes sequentially through one-way throttle
Valve 7, oil cylinder cavity of resorption connected pipes 6 enter hydraulic multitandem valve 14, and the hydraulic valve by being connected with the oil return opening of hydraulic multitandem valve 14
Oil return pipe 15 carries out oil return, and now, one-way throttle valve 7 is in throttle.
When farm implements decline, one-way throttle valve 7 works, when the fluid of the cavity of resorption of lift cylinder 18 is passed through choke valve,
Fluid is damped, and pressure reduces, and so as to slow down impulsive force when farm implements decline, is made farm implements decrease speed steady, is avoided declining
Damage that is too fast and causing farm implements.And due to using throttle valve plate to replace the structures such as piston in the one-way throttle valve 7, for a long time
It cannot be loosened after after use, and then remain to accurately adjust decrease speed after long-time use.
It should be noted that above-described embodiment can independent assortment as needed.Described above is only of the present utility model
Preferred embodiment, it is noted that for those skilled in the art, do not departing from the utility model principle
On the premise of, some improvements and modifications can also be made, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (7)
- A kind of 1. one-way throttle valve, it is characterised in that including：Valve body, the valve body are provided with the first fluid hole being sequentially communicated, lead to oily cavity and the second fluid hole；Throttle valve plate, the throttle valve plate are located in the logical oily cavity；Wherein, throttle valve plate includes valve block body, is arranged at supporting part of the valve block body close to the one end in the first fluid hole, A throttle orifice and at least one oil-through-hole are provided with the valve block body；When throttle valve plate is in throttle, the throttle valve plate is fitted in the logical oil sky close to the one end in the second fluid hole On first inner face of chamber, the oil-through-hole is blocked by first inner face, and fluid flows to described second from the throttle orifice Fluid hole；When throttle valve plate is in normal circulation status, the supporting part of the throttle valve plate is bonded close to the one end in the first fluid hole On the second inner face of the logical oily cavity, fluid flows to the first fluid hole from the throttle orifice and oil-through-hole respectively.
- 2. one-way throttle valve according to claim 1, it is characterised in that：There is logical oil-gap between the side wall of the valve block body and the logical oily cavity；When throttle valve plate is in throttle, the throttle valve plate is fitted in the logical oil sky close to the one end in the second fluid hole On first inner face of chamber, the oil-through-hole and logical oil-gap are blocked by first inner face, and fluid is from the throttle orifice stream To the second fluid hole；When throttle valve plate is in normal circulation status, the supporting part of the throttle valve plate is bonded close to the one end in the first fluid hole On the second inner face of the logical oily cavity, fluid flows to described from the throttle orifice, oil-through-hole and logical oil-gap respectively One fluid hole.
- 3. one-way throttle valve according to claim 1, it is characterised in that：The sectional dimension in the first fluid hole is less than the sectional dimension of the supporting part；The supporting part includes several support blocks, and the support block is uniformly arranged on valve block body close to along circumferential direction The one end in one fluid hole；The adjacent support block collectively forms the oil passage that fuel feeding liquid passes through.
- 4. one-way throttle valve according to claim 3, it is characterised in that：The oil-through-hole is staggered with support block；The throttle orifice is located at the center of the valve block body.
- 5. one-way throttle valve according to claim 1, it is characterised in that：The valve body is split type, is divided into upper valve body and lower valve body；The lower surface of the upper valve body is provided with storage tank, and the upper surface of the lower valve body cooperatively forms described logical with the storage tank Oily cavity；The upper surface of the upper valve body is provided with the second fluid hole, and the lower surface of the lower valve body is provided with first fluid Hole.
- 6. one-way throttle valve according to claim 5, it is characterised in that：The lower surface of the upper valve body and the junction of lower valve body are provided with the second welding groove, the lower valve body and the upper valve body The junction of lower surface be provided with the first welding groove, first welding groove is with the second welding groove by being welded to connect.
- 7. a kind of tractor for being provided with claim 1~6 one-way throttle valve described in any one suppresses device, its feature It is：The one-way throttle valve is arranged at the hydraulic circuit for suppressing device；The one-way throttle valve is located at the fuel feed hole of the cavity of resorption for the lift cylinder for suppressing device, and the first of the one-way throttle valve Fluid hole connects with the fuel feed hole of the cavity of resorption of the lift cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720966212.4U CN207004967U (en) | 2017-08-04 | 2017-08-04 | A kind of one-way throttle valve and the tractor of one-way throttle valve is installed suppresses device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720966212.4U CN207004967U (en) | 2017-08-04 | 2017-08-04 | A kind of one-way throttle valve and the tractor of one-way throttle valve is installed suppresses device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207004967U true CN207004967U (en) | 2018-02-13 |
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ID=61458549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720966212.4U Active CN207004967U (en) | 2017-08-04 | 2017-08-04 | A kind of one-way throttle valve and the tractor of one-way throttle valve is installed suppresses device |
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| CN (1) | CN207004967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043359A (en) * | 2019-11-05 | 2020-04-21 | 潍坊嘉腾液压技术有限公司 | One-way throttle valve and manufacturing method thereof |
-
2017
- 2017-08-04 CN CN201720966212.4U patent/CN207004967U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043359A (en) * | 2019-11-05 | 2020-04-21 | 潍坊嘉腾液压技术有限公司 | One-way throttle valve and manufacturing method thereof |
| CN111043359B (en) * | 2019-11-05 | 2021-08-31 | 潍坊嘉腾液压技术有限公司 | One-way throttle valve and manufacturing method thereof |
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