CN108799211A - A kind of shock-absorbing type hydraulic ram - Google Patents
A kind of shock-absorbing type hydraulic ram Download PDFInfo
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- CN108799211A CN108799211A CN201810748204.1A CN201810748204A CN108799211A CN 108799211 A CN108799211 A CN 108799211A CN 201810748204 A CN201810748204 A CN 201810748204A CN 108799211 A CN108799211 A CN 108799211A
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- hydraulic ram
- baffle
- standpipe
- bend pipe
- drain valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F7/00—Pumps displacing fluids by using inertia thereof, e.g. by generating vibrations therein
- F04F7/02—Hydraulic rams
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a kind of shock-absorbing type hydraulic rams, it includes power pipe, the power pipe is fixedly connected with the pump housing, the pump housing is connected with the bottom of the bottom of the first bend pipe and standpipe, the standpipe is connected with air chamber by drain valve, the side of the air chamber is provided with water outlet, the drain valve is internally provided with sluicing flap, the lower part of the sluicing flap is connected with baffle, the side of the sluicing flap is provided with baffle, the side of the power pipe is provided with aqueduct, and the aqueduct is connected with the second bend pipe by valve.The present invention is by by the back side of current deflecting hydraulic ram, so that the upstream face and back side of hydraulic ram are impacted by flow, slow down the vibrations that water impact generates hydraulic ram, pass through the upstream face shape of baffle at change sluicing flap simultaneously, reduce the forced area of baffle, the vibrations for reducing drain valve achieve the purpose that reducing hydraulic ram integrally shakes.
Description
Technical field
The invention belongs to hydraulic ram cushion technique fields, more specifically, more particularly, to a kind of shock-absorbing type hydraulic ram.
Background technology
Hydraulic ram is one kind using flowing water as power, by mechanism, generates water hammer effect, low water head can be converted to height
The advanced picotan of head energy.
Mainly dynamic pipe, the pump housing, drain valve, centre valve, pressurized tank, six major part of outlet pipe form hydraulic ram, master
The course of work wanted is：Hydraulic ram generated energy when being braked suddenly using the water in flowing, makes a portion hydraulic pressure
It is raised to a kind of pump of certain altitude.When flowing near drain valve along the water that power pipe flows downward, impulsive force is (as long as flowing speed
Spend sufficiently large, just there is enough impulse forces) so that valve is closed rapidly.Flow stops flowing suddenly, and the kinetic energy of flow is converted into pressure
Can, the pressure rise of interior water is then managed, drain valve is washed open, a part of water enters in air chamber and rises to one along outlet pipe
Fixed height.Subsequently, as pressure reduction in power pipe, drain valve is automatically fallen off under dead weight effect, is returned to open state.
The compressed air in air chamber promotes drain valve to close simultaneously, and whole process repeats again then.
During the use of hydraulic ram, flow frequently can lead to hydraulic ram hair during entering power pipe impact body
Raw lateral vibrations, when water velocity is excessive and long-play hydraulic ram, frequently can lead to pump housing itself occur it is certain tilt, no
Conducive to the realization of exiting water process, the efficiency of hydraulic ram is influenced；On the other hand, hydraulic ram during the work time, drain valve generally with
30-60 times per minute frequency opens and closes, and is completed every time from standard-sized sheet to the fully closed time within a few percent second, in closing
Moment flap will produce huge impulse force with valve bonnet seal shock, and frequent hard hit can not only shorten the use longevity of sealing
Life, is unfavorable for the permanent stable operation of equipment.
Invention content
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of shock-absorbing type hydraulic ram proposed,
Using the direction for flowing through aqueduct in the side of power pipe installation aqueduct and the second elbow transformation flow, by current deflecting water hammer
The back side of pump so that the upstream face and back side of hydraulic ram are impacted by flow, are slowed down water impact and are produced to hydraulic ram
Raw vibrations, while the upstream face shape by changing baffle at sluicing flap, reduce the forced area of baffle, and letting out
Baffle is arranged in the side of water valve valve, shares the thrust suffered by a part of baffle upstream face, reduces sluicing flap and is being moved through
Momentum in journey, and then reduce the vibrations of drain valve, achieve the purpose that reducing hydraulic ram integrally shakes.
To achieve the above object, the present invention provides the following technical solutions：
A kind of shock-absorbing type hydraulic ram, including power pipe, the pump housing, the first bend pipe, standpipe, drain valve, the power pipe and pump
Body is fixedly connected, and the pump housing is connected with the bottom of the bottom of the first bend pipe and standpipe, and the standpipe is connected by drain valve
There is an air chamber, the side of the air chamber is provided with water outlet, and the drain valve is internally provided with water outlet flap, and described first
Bend pipe is connected with the first drainpipe by drain valve, and the drain valve is internally provided with sluicing flap, the sluicing flap
Lower part is connected with baffle, and the side of the sluicing flap is provided with baffle, and the side of the power pipe is provided with aqueduct, institute
That states aqueduct is connected with the second bend pipe by valve, and the side of second bend pipe is provided with the second drainpipe.
Preferably, the end side of first drainpipe and the end side of the second drainpipe are provided with discharge outlet, the discharge outlet
It is oppositely arranged with the side of standpipe.
Preferably, first drainpipe and the second drainpipe present lower dislocation arrangement.
Preferably, the baffle is arranged using cone, hemispherical and truncated cone-shaped one form of which, and the water conservancy diversion
The end side size of body is consistent with the size of sluicing flap.
Preferably, the lower part of the aqueduct is equipped with fixed seat, and the fixed seat and power pipe, the pump housing and first are curved
Guan Jun is not attached to.
Preferably, the diameter of second bend pipe and the diameter of aqueduct match, and the diameter of second bend pipe with
The diameter of second drainpipe matches.
Preferably, it refers to that the value range of the ratio K of the diameter of two pipes to match exists that the diameter, which matches,
Between 0.9-1.1.
Based on above-mentioned hydraulic ram, the present invention also provides a kind of method that shock-absorbing type hydraulic ram realizes damping, including it is as follows
Step：
S1, water lift：Flow of the drop in 1.5m-10m enters the pump housing by power pipes of the diameter D1 in 100mm-1000mm
Inside, and the sharp cut-off of flow is realized, on inner pipe water pressure under 40-100 beats/min of sluicing valve action in opening times N
It rises and opens drain valve, flow enters in air chamber and by water outlet discharger, realizes water lift process；
S2, main damping：Drop passes through diameter D2 in 110mm-1500mm aqueducts and second in the flow of 1.5m-10m
The effect of bend pipe leads into flow in the second drainpipe, and the side of standpipe is sprayed to by the discharge outlet at the second drainpipe
Inclination conditions are shaken with standpipe caused by the most of water impact of buffering in portion；
S3, relief valve damping：Baffle at pressure release flap is using any one in cone, hemispherical and truncated cone-shaped
Form, reduces the forced area of sluicing flap, and shares the thrust suffered by 1/5-1/10 baffle upstream faces by baffle, subtracts
The momentum of small sluicing flap during the motion；
S4, auxiliary damping：The discharge outlet that the water of relief valve outflow flows through the first drainpipe sprays to the side of standpipe, with buffering
Standpipe caused by water flow impact pressure shakes inclination conditions；
S5, stablize standpipe：Standpipe is acted on by water conservancy impact and discharge outlet opposite direction active force, keeps inclining for standpipe
Rake angle controls within 3 °.
Preferably, integrally shaken to achieve the purpose that reduce hydraulic ram, the diameter D1 of the power pipe, aqueduct and
The diameter D2 of second bend pipe meets D1D2 and is less than or equal to 14000 more than or equal to 13000.
Preferably, in order to further reduce the whole vibrations of hydraulic ram, extend its service life, second bend pipe
With aqueduct, ratio K and the opening times N, diameter D1, aqueduct and the second bend pipe of power pipe of the second bend pipe diameter
Diameter D2 meet following relationship：
Wherein, α is proportionality factor, value range 0.25-0.48；Above formula only carries out numerical computations, is not related to unit fortune
It calculates.
Compared with prior art, technique effect of the invention and advantage：
1, shock-absorbing type hydraulic ram of the invention, by the way that in setting aqueduct, aqueduct is installed using in the side of power pipe
The direction that aqueduct is flowed through with the second elbow transformation flow, by the back side of current deflecting hydraulic ram so that hydraulic ram meets water
Face and back side are impacted by flow, and the vibrations that water impact generates hydraulic ram are slowed down.
2, shock-absorbing type hydraulic ram of the invention reduces water conservancy diversion by changing the upstream face shape of baffle at sluicing flap
The forced area of body, and baffle is set in the side of sluicing flap, the thrust suffered by a part of baffle upstream face is shared, is subtracted
The momentum of small sluicing flap during the motion, and then reduce the vibrations of drain valve, reach and reduces the mesh that hydraulic ram integrally shakes
's.
3, shock-absorbing type hydraulic ram of the invention, the diameter matches by the way that the second bend pipe and aqueduct, two drainpipes is arranged close
System, to reduce the vibrations of hydraulic ram.
4, shock-absorbing type hydraulic ram of the invention, by be arranged the diameter of power pipe, aqueduct and the second bend pipe diameter it
Between relationship, with achieve the purpose that reduce hydraulic ram integrally shake.
5, shock-absorbing type hydraulic ram of the invention, by be arranged the ratio K of the second bend pipe and aqueduct, the second bend pipe diameter with
The relationship of the diameter of the diameters of the opening times, power pipe, aqueduct and the second bend pipe, further to reduce hydraulic ram
Whole vibrations, extend its service life.
Description of the drawings
Fig. 1 is the shock-absorbing type hydraulic ram structural schematic diagram of the present invention；
Fig. 2 is the shock-absorbing type hydraulic ram aqueduct structure schematic diagram of the present invention；
Fig. 3 is the shock-absorbing type hydraulic ram drain valve structural schematic diagram of the present invention.
In figure：1, power pipe；2, the pump housing；3, the first bend pipe；4, standpipe；5, drain valve；6, air chamber；7, water outlet；8,
It is discharged flap；9, drain valve；10, the first drainpipe；11, sluicing flap；12, baffle；13, baffle；14, aqueduct；15, valve
Door；16, the second bend pipe；17, the second drainpipe；18, discharge outlet；19, fixed seat.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
As shown in Figs. 1-3, a kind of shock-absorbing type hydraulic ram, including power pipe 1, the pump housing 2, the first bend pipe 3, standpipe 4, drain valve
5, the power pipe 1 is fixedly connected with the pump housing 2, and the pump housing 2 is connected with the bottom of the bottom of the first bend pipe 3 and standpipe 4, institute
It states standpipe 4 and air chamber 6 is connected with by drain valve 5, the side of the air chamber 6 is provided with water outlet 7, the drain valve 5
It is internally provided with water outlet flap 8, first bend pipe 3 is connected with the first drainpipe 10 by drain valve 9, the drain valve 9
It is internally provided with sluicing flap 11, the lower part of the sluicing flap 11 is connected with baffle 12, the side of the sluicing flap 11
It is provided with baffle 13, the side of the power pipe 1 is provided with aqueduct 14, and the aqueduct 14 is connected with by valve 15
The side of two bend pipes 16, second bend pipe 16 is provided with the second drainpipe 17.
The end side of first drainpipe 10 and the end side of the second drainpipe 17 are provided with discharge outlet 18, the discharge outlet 18
It is oppositely arranged with the side of standpipe 4, first drainpipe, 10 and second drainpipe 17 is arranged in dislocation up and down, is reduced device and is accounted for
Space, while fully realizing stablizing effect.
The baffle 12 is arranged using cone, hemispherical and truncated cone-shaped one form of which, and the baffle 12
End side size it is consistent with the size of sluicing flap 11, reduce the impact force of baffle 12 and pressure release flap 11, prevent from sluicing
The vibrations of valve 9.
The lower part of the aqueduct 14 is equipped with fixed seat 19, and the fixed seat 19 and power pipe 1, the pump housing 2 and first
Bend pipe 3 is not attached to, and prevents vibrations caused by water impact aqueduct 14.
The diameter of the diameter and aqueduct 14 of second bend pipe 16 matches, and the diameter of second bend pipe 16 and
The diameter of two drainpipes 17 matches, and is realized convenient for the installation process of device, ensures the stabilization of water velocity, prevent water velocity
It is excessive or too small.The diameter, which matches, refers to, the value range of the ratio K of the diameter of two pipes to match is in 0.9-
Between 1.1.
Based on above-mentioned hydraulic ram, the present invention also provides a kind of method that shock-absorbing type hydraulic ram realizes damping, including it is as follows
Step：
S1, water lift：Flow of the drop in 1.5m enters pump body by diameter in the power pipe of 100mm, and is opening
Number realizes the sharp cut-off of flow under 40 beats/min of sluicing valve action, and inner pipe water pressure, which rises, opens drain valve, flow
In into air chamber and by water outlet discharger, water lift process is realized；
S2, main damping：Drop passes through effect of the diameter in 110mm aqueducts and the second bend pipe in the flow of 1.5m, will
Flow is led into the second drainpipe, and the side of standpipe is sprayed to by the discharge outlet at the second drainpipe, to buffer big portion
Standpipe caused by water impact is divided to shake inclination conditions；
S3, relief valve damping：Baffle at pressure release flap reduces the forced area of sluicing flap using cone, and
The thrust suffered by 1/10 baffle upstream face is shared by baffle, reduces the momentum of sluicing flap during the motion；
S4, auxiliary damping：The discharge outlet that the water of relief valve outflow flows through the first drainpipe sprays to the side of standpipe, with buffering
Standpipe caused by 1/20 water flow impact pressure shakes inclination conditions.
S5, stablize standpipe：Standpipe is acted on by water conservancy impact and discharge outlet opposite direction active force, keeps inclining for standpipe
Rake angle controls within 1 °.
Embodiment 2
As shown in Figs. 1-3, a kind of shock-absorbing type hydraulic ram, including power pipe 1, the pump housing 2, the first bend pipe 3, standpipe 4, drain valve
5, the power pipe 1 is fixedly connected with the pump housing 2, and the pump housing 2 is connected with the bottom of the bottom of the first bend pipe 3 and standpipe 4, institute
It states standpipe 4 and air chamber 6 is connected with by drain valve 5, the side of the air chamber 6 is provided with water outlet 7, the drain valve 5
It is internally provided with water outlet flap 8, first bend pipe 3 is connected with the first drainpipe 10 by drain valve 9, the drain valve 9
It is internally provided with sluicing flap 11, the lower part of the sluicing flap 11 is connected with baffle 12, the side of the sluicing flap 11
It is provided with baffle 13, the side of the power pipe 1 is provided with aqueduct 14, and the aqueduct 14 is connected with by valve 15
The side of two bend pipes 16, second bend pipe 16 is provided with the second drainpipe 17.
The end side of first drainpipe 10 and the end side of the second drainpipe 17 are provided with discharge outlet 18, the discharge outlet 18
It is oppositely arranged with the side of standpipe 4, first drainpipe, 10 and second drainpipe 17 is arranged in dislocation up and down, is reduced device and is accounted for
Space, while fully realizing stablizing effect.
The baffle 12 is arranged using cone, hemispherical and truncated cone-shaped one form of which, and the baffle 12
End side size it is consistent with the size of sluicing flap 11, reduce the impact force of baffle 12 and pressure release flap 11, prevent from sluicing
The vibrations of valve 9.
The lower part of the aqueduct 14 is equipped with fixed seat 19, and the fixed seat 19 and power pipe 1, the pump housing 2 and first
Bend pipe 3 is not attached to, and prevents vibrations caused by water impact aqueduct 14.
The diameter of the diameter and aqueduct 14 of second bend pipe 16 matches, and the diameter of second bend pipe 16 and
The diameter of two drainpipes 17 matches, and is realized convenient for the installation process of device, ensures the stabilization of water velocity, prevent water velocity
It is excessive or too small.
Based on above-mentioned hydraulic ram, the present invention also provides a kind of method that shock-absorbing type hydraulic ram realizes damping, including it is as follows
Step：
S1, water lift：Flow of the drop in 5m enters pump body by diameter in the power pipe of 500mm, and secondary opening
Number realizes the sharp cut-off of flow under 70 beats/min of sluicing valve action, and inner pipe water pressure, which rises, opens drain valve, and water flows into
Enter in air chamber and by water outlet discharger, realizes water lift process；
S2, main damping：Drop passes through effect of the diameter in 550mm aqueducts and the second bend pipe in the flow of 5m, by water
Stream is led into the second drainpipe, and the side of standpipe is sprayed to by the discharge outlet at the second drainpipe, to buffer major part
Standpipe caused by water impact shakes inclination conditions；
S3, relief valve damping：Baffle at pressure release flap uses hemispherical, reduces the forced area of sluicing flap, and
The thrust suffered by 3/20 baffle upstream face is shared by baffle, reduces the momentum of sluicing flap during the motion；
S4, auxiliary damping：The discharge outlet that the water of relief valve outflow flows through the first drainpipe sprays to the side of standpipe, with buffering
Standpipe caused by 3/40 water flow impact pressure shakes inclination conditions.
S5, stablize standpipe：Standpipe is acted on by water conservancy impact and discharge outlet opposite direction active force, keeps inclining for standpipe
Rake angle controls within 2 °.
It is integrally shaken to achieve the purpose that reduce hydraulic ram, the diameter D1 of the power pipe, aqueduct and second are curved
The diameter D2 of pipe meets D1D2 and is less than or equal to 14000 more than or equal to 13000.
Embodiment 3
As shown in Figs. 1-3, a kind of shock-absorbing type hydraulic ram, including power pipe 1, the pump housing 2, the first bend pipe 3, standpipe 4, drain valve
5, the power pipe 1 is fixedly connected with the pump housing 2, and the pump housing 2 is connected with the bottom of the bottom of the first bend pipe 3 and standpipe 4, institute
It states standpipe 4 and air chamber 6 is connected with by drain valve 5, the side of the air chamber 6 is provided with water outlet 7, the drain valve 5
It is internally provided with water outlet flap 8, first bend pipe 3 is connected with the first drainpipe 10 by drain valve 9, the drain valve 9
It is internally provided with sluicing flap 11, the lower part of the sluicing flap 11 is connected with baffle 12, the side of the sluicing flap 11
It is provided with baffle 13, the side of the power pipe 1 is provided with aqueduct 14, and the aqueduct 14 is connected with by valve 15
The side of two bend pipes 16, second bend pipe 16 is provided with the second drainpipe 17.
The end side of first drainpipe 10 and the end side of the second drainpipe 17 are provided with discharge outlet 18, the discharge outlet 18
It is oppositely arranged with the side of standpipe 4, first drainpipe, 10 and second drainpipe 17 is arranged in dislocation up and down, is reduced device and is accounted for
Space, while fully realizing stablizing effect.
The baffle 12 is arranged using cone, hemispherical and truncated cone-shaped one form of which, and the baffle 12
End side size it is consistent with the size of sluicing flap 11, reduce the impact force of baffle 12 and pressure release flap 11, prevent from sluicing
The vibrations of valve 9.
The lower part of the aqueduct 14 is equipped with fixed seat 19, and the fixed seat 19 and power pipe 1, the pump housing 2 and first
Bend pipe 3 is not attached to, and prevents vibrations caused by water impact aqueduct 14.
The diameter of the diameter and aqueduct 14 of second bend pipe 16 matches, and the diameter of second bend pipe 16 and
The diameter of two drainpipes 17 matches, and is realized convenient for the installation process of device, ensures the stabilization of water velocity, prevent water velocity
It is excessive or too small.The diameter, which matches, refers to, the value range of the ratio K of the diameter of two pipes to match is in 0.9-
Between 1.1.
It is integrally shaken to achieve the purpose that reduce hydraulic ram, the diameter D1 of the power pipe, aqueduct and second are curved
The diameter D2 of pipe meets D1D2 and is less than or equal to 14000 more than or equal to 13000.
In order to further reduce the whole vibrations of hydraulic ram, extend its service life, second bend pipe and water guide
The diameter of the ratio K and the opening times N, the diameter D1 of power pipe, aqueduct and the second bend pipe of pipe, the second bend pipe diameter
D2 meets following relationship：
Wherein, α is proportionality factor, value range 0.25-0.48；Above formula only carries out numerical computations, is not related to unit fortune
It calculates.
Based on above-mentioned hydraulic ram, the present invention also provides a kind of method that shock-absorbing type hydraulic ram realizes damping, including it is as follows
Step：
S1, water lift：Flow of the drop in 10m enters pump body by diameter in the power pipe of 1000mm, and is opening
Number realizes the sharp cut-off of flow under 100 beats/min of sluicing valve action, and inner pipe water pressure, which rises, opens drain valve, flow
In into air chamber and by water outlet discharger, water lift process is realized；
S2, main damping：Drop passes through effect of the diameter in 1500mm aqueducts and the second bend pipe in the flow of 10m, will
Flow is led into the second drainpipe, and the side of standpipe is sprayed to by the discharge outlet at the second drainpipe, to buffer big portion
Standpipe caused by water impact is divided to shake inclination conditions；
S3, relief valve damping：Baffle at pressure release flap uses truncated cone-shaped, reduces the forced area of sluicing flap, and
The thrust suffered by 1/50 baffle upstream face is shared by baffle, reduces the momentum of sluicing flap during the motion；
S4, auxiliary damping：The discharge outlet that the water of relief valve outflow flows through the first drainpipe sprays to the side of standpipe, with buffering
Standpipe caused by 1/10 water impact shakes inclination conditions.
S5, stablize standpipe：Standpipe is acted on by water conservancy impact and discharge outlet opposite direction active force, keeps inclining for standpipe
Rake angle controls within 3 °.
Finally it should be noted that：The foregoing is merely preferred embodiments, are not intended to restrict the invention, although reference
Invention is explained in detail for previous embodiment, for those skilled in the art, still can be to aforementioned each
Technical solution recorded in embodiment is modified or equivalent replacement of some of the technical features, the present invention's
Within spirit and principle, any modification, equivalent replacement, improvement and so on are all included in the scope of protection of the present invention.
Claims (5)
1. a kind of shock-absorbing type hydraulic ram, including power pipe (1), the pump housing (2), the first bend pipe (3), standpipe (4), drain valve (5),
It is characterized in that：The power pipe (1) is fixedly connected with the pump housing (2), bottom and standpipe of the pump housing (2) with the first bend pipe (3)
(4) bottom is connected, and the standpipe (4) is connected with air chamber (6) by drain valve (5), and the side of the air chamber (6) is set
It is equipped with water outlet (7), the drain valve (5) is internally provided with water outlet flap (8), and first bend pipe (3) passes through drain valve
(9) it is connected with the first drainpipe (10), the drain valve (9) is internally provided with sluicing flap (11), the sluicing flap
(11) lower part is connected with baffle (12), and the side of the sluicing flap (11) is provided with baffle (13), the power pipe (1)
Side be provided with aqueduct (14), the aqueduct (14) is connected with the second bend pipe (16) by valve (15), described
The side of two bend pipes (16) is provided with the second drainpipe (17).
2. a kind of shock-absorbing type hydraulic ram according to claim 1, it is characterised in that：The end side of first drainpipe (10)
It is provided with discharge outlet (18) with the end side of the second drainpipe (17), the discharge outlet (18) and the side of standpipe (4) are oppositely arranged.
3. a kind of shock-absorbing type hydraulic ram according to claim 1 or 2, it is characterised in that：The baffle (12) is using circle
Taper, hemispherical and the setting of truncated cone-shaped one form of which.
4. a kind of shock-absorbing type hydraulic ram according to claim 1-3, it is characterised in that：Pacify the lower part of the aqueduct (14)
Equipped with fixed seat (19), and the fixed seat (19) is not attached to power pipe (1), the pump housing (2) and the first bend pipe (3).
5. a kind of shock-absorbing type hydraulic ram according to claim 1-4, it is characterised in that：The diameter of second bend pipe (16)
Match with the diameter of aqueduct (14), and the diameter phase of the diameter of second bend pipe (16) and the second drainpipe (17)
Match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810748204.1A CN108799211A (en) | 2018-07-10 | 2018-07-10 | A kind of shock-absorbing type hydraulic ram |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810748204.1A CN108799211A (en) | 2018-07-10 | 2018-07-10 | A kind of shock-absorbing type hydraulic ram |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108799211A true CN108799211A (en) | 2018-11-13 |
Family
ID=64075979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810748204.1A Withdrawn CN108799211A (en) | 2018-07-10 | 2018-07-10 | A kind of shock-absorbing type hydraulic ram |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108799211A (en) |
-
2018
- 2018-07-10 CN CN201810748204.1A patent/CN108799211A/en not_active Withdrawn
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| PB01 | Publication | ||
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Application publication date: 20181113 |