CN103775300B - pumping device - Google Patents
pumping device Download PDFInfo
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- CN103775300B CN103775300B CN201410057890.XA CN201410057890A CN103775300B CN 103775300 B CN103775300 B CN 103775300B CN 201410057890 A CN201410057890 A CN 201410057890A CN 103775300 B CN103775300 B CN 103775300B
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- water tank
- pumping
- pumping equipment
- hinged
- frame
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- 238000005086 pumping Methods 0.000 title claims abstract description 107
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 239000004567 concrete Substances 0.000 claims abstract description 25
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 210000005069 ears Anatomy 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 239000000725 suspension Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000006978 adaptation Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides pumping equipment, which comprises a rack and a pumping unit arranged on the rack; the pumping unit comprises a hopper and a pumping power unit connected with the hopper, the pumping power unit comprises two concrete cylinders, two oil cylinders for respectively driving the two concrete cylinders, and a water tank for connecting the oil cylinders and the concrete cylinders, the pumping equipment further comprises a hinged connecting rod, the hinged connecting rod is positioned between the two oil cylinders or the two concrete cylinders, the upper end of the hinged connecting rod is hinged with the rack, and the lower end of the hinged connecting rod is hinged with the water tank. According to the pumping equipment, the water tank is suspended on the rack through the hinged connecting rod, the hinged connecting rod is located between the two oil cylinders or the two concrete cylinders, rigid support or over-positioned connection in the prior art is converted into flexible self-adaptive single-point suspension, the size error and assembly error of parts of the pumping unit can be well absorbed, axial stretching deformation of the pumping unit in the pumping process is adapted, and therefore the pumping unit is prevented from deforming, and fixing is more reliable.
Description
Technical field
The present invention relates to the pasty material pumping fields such as concrete, in particular to a kind of pumping equipment.
Background technology
In prior art, pumping unit support fixed structure mainly has two shown in Fig. 1 and Fig. 2 kind.As it is shown in figure 1, pumping
The hopper dual-side of unit 1 is fixed bolt 2 by hopper and is connected with subframe 3, and water tank 4 both sides of pumping unit 1 are fixing to be set
Being equipped with water tank wing plate, water tank wing plate is fixed in the water tank mounting seat on subframe 3 by fixing bolt 5.
But, use the mode of this fixing connection, owing to water tank wing plate is welded on water tank, by positioning precision and welding deformation
Impact, its position, angle precision are relatively low, when causing pumping unit 1 to be installed, need to adjust water tank mounting seat to make 4 liang of water tank
Side is contour, then joins weldering water tank mounting seat, causes adjustment control difficulty, joins weldering and take time and effort.And adjust not in place or
Welding deformation is easily caused pumping unit 1 and is distorted, and reduces pumping oil cylinder and the axiality of concrete cylinder, and then causes piston, oil
The service life of the critical components such as cylinder and concrete cylinder reduces.
Further, since three angles of the integral installation angle of pumping unit, hopper support angle and water tank wing plate angle existed
Location, if angle difference is relatively big, then can cause pumping unit to produce and install internal stress, cause pumping unit to distort.
Again, pumping unit maintainability is poor, and when installing pumping unit for the first time, part dimension error and alignment error can be led to
Cross and join weldering elimination, water tank installing plate must be sliced off when changing pumping unit and again join the water tank installing plate that weldering is new.Finally, pumping
Four mount points of unit are all fixed, and deformation and the vibration of subframe will be fully transmitted to pumping unit, reduce pumping unit coaxial
Degree.
The second water tank supporting construction of the prior art is as in figure 2 it is shown, pumping unit 1 hopper end is by hopper pin joint 6 He
Subframe 3 connects, and water tank 4 both sides are designed with two circular holes, inserts two mounting pins 7 in circular hole, and mounting pin 7 will by anchor ear
Water tank is fixed on subframe 3.Identically with first kind of way, when two mounting pins of water tank both sides are the most contour, easily lead
Cause pumping unit distorts；It addition, water tank is hinged on subframe 3 by mounting pin 7, the deformation of subframe 3 and vibration are still
Water tank mounting pin 7 will be fully transmitted to, reduce pumping unit axiality；Again, hopper end is double hinged suspensions, at pumping unit
In commutation and pumping procedure, swing and the changing of the relative positions front and back is relatively big, and water tank end is fixed by mounting pin, it is impossible to synchronous hunting and mistake
Dynamic, pumping unit will be distorted deformation, reduction axiality, the service life of the critical components such as reduction piston, oil cylinder and concrete cylinder.
In sum, pumping unit support fixed structure of the prior art all cannot the scale error of self adaptation pumping unit parts
And rigging error, it is easily caused pumping unit deformation.Also deformation and the vibration of subframe 3, the deformation of subframe 3 cannot be isolated
Pumping unit can be directly delivered to, it is also possible to cause pumping unit to deform with vibration.
Summary of the invention
It is desirable to provide the pumping equipment of a kind of self adaptation pumping unit scale error.
The invention provides a kind of pumping equipment, including frame and the pumping unit being arranged in frame；Pumping unit includes hopper
And the pumping power unit being connected with hopper, pumping power unit includes two oil cylinders of two concrete cylinders and two concrete cylinders of driving respectively,
And connecting oil cylinder and the water tank of concrete cylinder, pumping equipment also includes articulated linkage, and articulated linkage is positioned at two oil cylinders or two concretes
Between cylinder, and the upper end of articulated linkage is hinged with frame, and the lower end of articulated linkage is hinged with water tank.
Further, pumping equipment also includes that frame bearing, frame bearing are fixedly installed in frame and are positioned at the lower section of oil cylinder,
And the upper end of articulated linkage is hinged with frame bearing.
Further, frame bearing behaviour cross-beam of character form, herringbone crossbeam includes being positioned at the convex-shaped cavity of centre and from convex-shaped
The supporting leg that cavity extends to both sides, supporting leg is fixing with frame to be connected, and convex-shaped cavity extends between two oil cylinders and its underpart is
Opening；The upper end of articulated linkage be inserted into from the opening of the bottom of convex-shaped cavity in convex-shaped cavity and with convex-shaped cavity
Side walls hinged.
Further, during herringbone crossbeam includes two herringbone transverse slats and be fixedly installed between two herringbone transverse slats two
Between gusset；Herringbone transverse slat is symmetrical about its centrage, and two herringbone transverse slats are oppositely arranged, and in the middle of two, gusset is about herringbone
The plane symmetry at the centrage place of shape transverse slat is arranged；Middle gusset has vertical portion and fixes, with lower end, vertical portion, the supporting leg being connected
Portion；In the middle of two, the vertical portion of gusset and the middle part of two herringbone transverse slats surround convex-shaped cavity；In the middle of two, gusset is vertical
Hinged axis hole it is provided with in portion.
Further, pumping equipment also includes that water tank boatswain chair, the first end of water tank boatswain chair are fixedly connected on the bottom of water tank, water tank
Boatswain chair second end formed two hinge ears, the lower end of articulated linkage two hinge ear between and with two hinge ears hinged.
Further, water tank boatswain chair also includes the reinforcement being arranged on hinge ear side.
Further, water tank boatswain chair also includes being arranged on the reinforcing prop above two hinge ears, reinforcing prop and two fixing connections of hinge ear.
Further, pumping equipment also includes that resilient support, resilient support are arranged on the both sides of water tank to limit the lateral rolling of water tank
Dynamic.
Further, resilient support includes the fixed supporting seat being fixedly installed in frame and can horizontal direction adjustably be arranged on solid
Surely supporting the cushion on seat, cushion abuts with water tank.
Further, fixed supporting seat has horizontally extending chute, chute is equipped with slide bar, slide bar
First end is provided with the bolt that regulation slide bar moves in the horizontal direction, and cushion is fixedly installed on the second end of slide bar.
According to the pumping equipment of the present invention, by articulated linkage, water tank is suspended in frame, and articulated linkage is positioned at two oil
Between cylinder or two concrete cylinders, by rigid support of the prior art or excessively it is located by connecting, is changed into flexible self adaptation and hangs,
Can well absorb scale error and rigging error, the axial tension in self adaptation pumping unit pumping procedure of pumping assembly of elements
Deformation, thus prevent pumping unit from deforming so that fixing more reliable.
Accompanying drawing explanation
The accompanying drawing of the part constituting the application is used for providing a further understanding of the present invention, the illustrative examples of the present invention and
Its explanation is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the first support fixed structure schematic diagram of pumping unit of the prior art；
Fig. 2 is the second support fixed structure schematic diagram of pumping unit of the prior art；
Fig. 3 is the supporting construction schematic diagram of the pumping unit of the present invention；
Fig. 4 is the plan structure schematic diagram of Fig. 3；
Fig. 5 is that the water tank according to the present invention supports the structural representation connected；
Fig. 6 is the structural representation of the articulated linkage according to the present invention；
Fig. 7 a is the main TV structure schematic diagram of the herringbone frame according to the present invention；
Fig. 7 b is the main TV structure schematic diagram of the herringbone frame according to the present invention；
Fig. 8 is the attachment structure schematic diagram of the water tank according to the present invention and water tank boatswain chair；
Fig. 9 is the structural representation of the water tank boatswain chair according to the present invention；And
Figure 10 is the structural representation of the resilient support according to the present invention.
Detailed description of the invention
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As Fig. 3 is to shown in 5, according to the pumping equipment of the present invention, including frame 10 and the pumping unit being arranged in frame 10
20；Pumping unit 20 includes that hopper 21 and the pumping power unit being connected with hopper 21, pumping power unit include two concrete cylinders
23 and drive two oil cylinders 24 of two concrete cylinders 23 respectively, and connect oil cylinder 24 and the water tank 22 of concrete cylinder 23, pumping equipment
Also including articulated linkage 41, articulated linkage 41 is between two oil cylinders 24 or two concrete cylinders 23, and articulated linkage 41
Upper end is hinged with frame 10, and the lower end of articulated linkage 41 is hinged with water tank 22.
Water tank 22 is suspended in frame 10 by articulated linkage 41 by the present invention, and articulated linkage 41 be positioned at two oil cylinders it
Between, 22, the most whole water tank is hung by articulated linkage 41 single-point, is effectively improved the convenience of installation, and can subtract
Pumping unit assembling is installed the impact caused by the deformation of little frame, even if pumping unit or frame produce one after installation
Quantitative deformation also will not produce internal stress, thus improves pumping unit coaxial accuracy, improves piston, oil cylinder and concrete cylinder etc. and closes
The service life of key member.During pumping unit pumps, the buffering impact of pumping unit also reduces pumping unit and is transferred to
The vibration of vehicle frame, reduces the vibration in pumping procedure of the whole pump truck domain, thus reduces pumping vehicle arm rack shaking in pumping procedure
Dynamic, improve the stability of pumping.According to the needs of installation site, in the present invention, articulated linkage 41 can also be arranged on two
Between concrete cylinder 23.
As shown in Figure 6, articulated linkage 41 is overall plate-shaped, and its two ends are provided with axis hole, for respectively with water tank 22 and machine
Frame 10 is hinged, preferably, arranges oscillating bearing in the upper end of articulated linkage 41, i.e. articulated linkage 41 upper end use ball pivot with
Frame connects, it is possible to more effectively isolation frame 10 and the impact of pumping unit 20 deformation, prevents internal stress, improves and live
The service life of the critical components such as plug, oil cylinder and concrete cylinder.
Shown in Fig. 5 and Fig. 7 a and Fig. 7 b, pumping equipment also includes that frame bearing 43, frame bearing 43 are fixedly installed on machine
On frame 10 and be positioned at the lower section of oil cylinder 24, and the upper end of articulated linkage 41 is hinged with frame bearing 43.Frame bearing 43 is arranged
The lower section of oil cylinder 24, so that whole supporting construction is positioned at below pumping unit, facilitates the integral hoisting of pumping unit.
Shown in Fig. 7 a and Fig. 7 b, frame bearing 43 is people's cross-beam of character form, uses herringbone crossbeam to improve frame bearing 43
Intensity and rigidity, thus improve structural strength.Specifically, herringbone crossbeam include being positioned at centre convex-shaped cavity 431 and from
The supporting leg 432 that convex-shaped cavity 431 extends to both sides, supporting leg 432 is fixing with frame 10 to be connected, and convex-shaped cavity 431 is to two
Extending between individual oil cylinder 24 and its underpart is opening, the upper end of articulated linkage 41 is from the opening of the bottom of convex-shaped cavity 431
It is inserted in convex-shaped cavity 431 and side walls hinged with convex-shaped cavity 431, namely the primary structure of convex-shaped cavity 431
It is all located between two oil cylinders, thus makes full use of the space between two oil cylinders so that more compact structure.
More specifically, herringbone crossbeam includes two herringbone transverse slats 433 and is fixedly installed between two herringbone transverse slats 433
Two in the middle of gussets 434, herringbone transverse slat 433 is symmetrical about its centrage, and two herringbone transverse slats 433 are oppositely arranged, two
Individual middle gusset 434 is arranged about the plane symmetry at the centrage place of herringbone transverse slat 433.Employing said structure designs, and makes
Obtain herringbone transverse slat 433 and bear in the middle of the main stress of frame bearing 43, herringbone transverse slat 322 high, two bottoms, and also centre is arrived
Two terminal circle arc-shaped transition, it is possible to be effectively improved the bending strength of herringbone transverse slat 322, and avoid stress to concentrate.
Middle gusset 434 welds between two herringbone transverse slats 433, is linked together by two herringbone transverse slats 433, thus
Herringbone transverse slat 433 torsional strength improved, it is ensured that the intensity of total.Middle gusset 434 have vertical portion 434a and with
Leg section 434b of connection, the vertical portion 434a of two middle gussets 434 and two herringbone horizontal strokes are fixed in 434a lower end, vertical portion
The middle part of plate 433 surrounds convex-shaped cavity 431, i.e. two vertical portion 434a and two herringbone transverse slats 433 and connects formation one
In the convex-shaped cavity 431 of side's tubbiness, it is effectively improved the structural strength of convex-shaped cavity 431, protects the company of whole supporting construction
Connect intensity.It is provided with hinged axis hole 434c in the middle of two, at hinged axis hole 434c and hinged on the vertical portion 434a of gussets 434
Second end of connecting rod 41 wears bearing pin, thus by hinged with articulated linkage 41 for frame bearing 43.
In conjunction with Fig. 5 and Fig. 8 to shown in 9, pumping equipment also includes water tank boatswain chair 42, and the first end of water tank boatswain chair 42 is fixing to be connected
In the bottom of water tank 22, the second end of water tank boatswain chair 42 forms two hinge ear 42a, and the lower end of articulated linkage 41 is positioned at two hinges
Between ear 42a and with two hinge ear 42a hinged.By water tank boatswain chair 42 by the point of suspension of water tank 22 to the side away from water tank 22
To extending a certain distance, thus avoid water tank 22 to interfere with articulated linkage 41, install also can to frame bearing 43 and concede necessarily
Space.
Specifically, shown in Fig. 3, pumping unit entirety is obliquely installed in low early and high after, i.e. more backward, and frame 10 and oil
Difference in height between cylinder is the highest, falls a little to extend certain to the direction away from water tank 22 by the outstanding of water tank 22 by water tank boatswain chair 42
Distance so that frame correspondence position has enough space frame bearings 43 so that frame bearing 43, water tank boatswain chair 42, hinged
Connecting rod 41 is respectively positioned on the bottom of pumping unit, thus facilitates integral hoisting.
Specifically, shown in Fig. 8 and Fig. 9, the reinforcement that two sides hinged for hinge ear 42a of water tank boatswain chair 42 are provided with
42b, thus improve the intensity of hinge ear 42a.Preferably, as it is shown in figure 9, be arranged above reinforcing prop at two hinge ear 42a
42c, reinforcing prop 42c fix with two hinge ear 42a simultaneously and are connected, and improve the bending strength of hinge ear 42a.
As shown in Figure 10, pumping equipment also includes flexibly supporting 44, and resilient support 44 is arranged on the both sides of water tank 22 to limit water
Laterally rocking of case 22.I.e. in the present invention, owing to water tank is single-point support, in order to avoid water tank frequently rocks, by arranging bullet
Property support 44, thus water tank 22 is formed certain elastic limit, constitutes certain buffering, isolation deformation and vibration can be reached
Effect.
Specifically, resilient support 44 includes being fixedly installed in frame 10 fixed supporting seats 441 and can horizontal direction adjustably
The cushion 442 being arranged on fixed supporting seat 441, cushion 442 abuts with water tank 22, and cushion 442 is in the horizontal direction
Regulation, such that it is able to regulate as required, it is ensured that cushion 442 abuts effect with water tank 22, thus ensures buffering effect, keeps away
Exempt from water tank horizontal jitter.
More specifically, have horizontally extending chute 443 on fixed supporting seat 441, chute 443 is equipped with cunning
Bar 444, the first end of slide bar 444 is provided with the bolt 445 that regulation slide bar 444 moves in the horizontal direction, and cushion 442 is fixed
It is arranged on the second end of slide bar 444.By rotating bolt 445, slide bar 444 can be promoted to move, thus regulate cushion 442
And the distance between water tank 22 and elastic force, thus realize elastic buffer, bolt 445 is equipped with locking nut 446,
When rotating bolt 445 promotes cushion 442 to correct position, tighten locking nut 446, be possible to prevent bolt 445 to loosen,
Keep cushion 442 position and elastic force stable.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
According to the pumping equipment of the present invention, by articulated linkage, water tank is suspended in frame, and articulated linkage is positioned at two oil
Between cylinder, by rigid support of the prior art or excessively it is located by connecting, is changed into flexible self adaptation and hangs, can well absorb
The scale error of pumping unit parts and rigging error, the axial tension deformation in self adaptation pumping unit pumping procedure, thus anti-
Only pumping unit deformation so that fixing more reliable.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art
For, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of being made, etc.
With replacement, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a pumping equipment, including frame (10) and the pumping unit (20) that is arranged in described frame (10)；
Described pumping unit (20) includes hopper (21) and the pumping power unit being connected with described hopper (21),
Described pumping power unit includes two concrete cylinders (23) and drives two oil cylinders (24) of two described concrete cylinders (23) respectively,
And connect the water tank (22) of described oil cylinder (24) and described concrete cylinder (23), it is characterised in that
Described pumping equipment also includes that articulated linkage (41), described articulated linkage (41) are positioned at said two oil cylinder (24)
Or between said two concrete cylinder (23), and the upper end of described articulated linkage (41) is hinged with described frame (10),
The lower end of described articulated linkage (41) is hinged with described water tank (22).
Pumping equipment the most according to claim 1, it is characterised in that
Described pumping equipment also includes that frame bearing (43), described frame bearing (43) are fixedly installed on described frame (10)
Go up and be positioned at the lower section of described oil cylinder (24), and the upper end of described articulated linkage (41) and described frame bearing (43)
Hinged.
Pumping equipment the most according to claim 2, it is characterised in that
Described frame bearing (43) is people's cross-beam of character form, and described herringbone crossbeam includes the convex-shaped cavity being positioned at centre
(431) supporting leg (432) and from described convex-shaped cavity (431) extended to both sides, described supporting leg (432) with
Described frame (10) is fixing to be connected, described convex-shaped cavity (431) extend between two described oil cylinders (24) and
Its underpart is opening；
The upper end of described articulated linkage (41) is inserted into described from the opening of the bottom of described convex-shaped cavity (431)
Side walls hinged in convex-shaped cavity (431) and with described convex-shaped cavity (431).
Pumping equipment the most according to claim 3, it is characterised in that
Described herringbone crossbeam includes two herringbone transverse slats (433) and is fixedly installed on said two herringbone transverse slat
(433) gusset (434) in the middle of two between；
Described herringbone transverse slat (433) is symmetrical about its centrage, and two described herringbone transverse slats (433) set relatively
Putting, two described middle gussets (434) are arranged about the plane symmetry at the centrage place of herringbone transverse slat (433)；
Described middle gusset (434) has vertical portion (434a) and fixes even with described vertical portion (434a) lower end
The leg section (434b) connect；
The vertical portion (434a) of two described middle gussets (434) and two described herringbone transverse slats (433)
Middle part surrounds described convex-shaped cavity (431)；
It is provided with hinged axis hole (434c) on the vertical portion (434a) of two described middle gussets (434).
Pumping equipment the most according to claim 3, it is characterised in that
Described pumping equipment also includes that water tank boatswain chair (42), the first end of described water tank boatswain chair (42) are fixedly connected on institute
Stating the bottom of water tank (22), the second end of described water tank boatswain chair (42) forms two hinges ear (42a), described hinged
The lower end of connecting rod (41) is positioned between said two hinge ear (42a) and hinged with said two hinge ear (42a).
Pumping equipment the most according to claim 5, it is characterised in that
Described water tank boatswain chair (42) also includes the reinforcement (42b) being arranged on described hinge ear (42a) side.
7. according to the pumping equipment described in claim 5 or 6, it is characterised in that
Described water tank boatswain chair (42) also includes the reinforcing prop (42c) being arranged on two described hinge ear (42a) tops, described
Reinforcing prop (42c) is fixing with two described hinge ears (42a) to be connected.
Pumping equipment the most according to claim 1, it is characterised in that
Described pumping equipment also includes flexibly supporting (44), and described resilient support (44) is arranged on described water tank (22)
Both sides to limit laterally the rocking of described water tank (22).
Pumping equipment the most according to claim 8, it is characterised in that
Described resilient support (44) includes the fixed supporting seat (441) being fixedly installed in described frame (10) and can
Horizontal direction is adjustably arranged on the cushion (442) on described fixed supporting seat (441), described cushion (442)
Abut with described water tank (22).
Pumping equipment the most according to claim 9, it is characterised in that
There is on described fixed supporting seat (441) horizontally extending chute (443), described chute (443)
In be equipped with slide bar (444), the first end of described slide bar (444) be provided with regulation described slide bar (444) edge
The bolt (445) of horizontal motion, described cushion (442) is fixedly installed on the second of described slide bar (444)
End.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410057890.XA CN103775300B (en) | 2014-02-20 | 2014-02-20 | pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410057890.XA CN103775300B (en) | 2014-02-20 | 2014-02-20 | pumping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103775300A CN103775300A (en) | 2014-05-07 |
| CN103775300B true CN103775300B (en) | 2016-08-17 |
Family
ID=50567935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410057890.XA Active CN103775300B (en) | 2014-02-20 | 2014-02-20 | pumping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103775300B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109278149A (en) * | 2018-11-19 | 2019-01-29 | 扬州快乐机械有限公司 | A kind of elevating mechanism and spreading machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0422745A1 (en) * | 1989-10-13 | 1991-04-17 | Pieter Faber | Concrete-pumping device |
| CN2526540Y (en) * | 2001-11-01 | 2002-12-18 | 三一重工股份有限公司 | Pumping mechanism easy to replace concrete piston |
| CN101956459A (en) * | 2010-09-19 | 2011-01-26 | 三一重工股份有限公司 | Pumping machine |
| CN102505850A (en) * | 2011-11-09 | 2012-06-20 | 中联重科股份有限公司 | Mounting structure of concrete pumping unit and concrete pumping equipment |
| EP2549103A1 (en) * | 2010-03-16 | 2013-01-23 | Hunan Sany Intelligent Control Equipment Co., Ltd | Concrete pumping structure |
| CN103321871A (en) * | 2013-06-21 | 2013-09-25 | 中联重科股份有限公司 | Pumping mechanism and pumping equipment comprising same |
-
2014
- 2014-02-20 CN CN201410057890.XA patent/CN103775300B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0422745A1 (en) * | 1989-10-13 | 1991-04-17 | Pieter Faber | Concrete-pumping device |
| CN2526540Y (en) * | 2001-11-01 | 2002-12-18 | 三一重工股份有限公司 | Pumping mechanism easy to replace concrete piston |
| EP2549103A1 (en) * | 2010-03-16 | 2013-01-23 | Hunan Sany Intelligent Control Equipment Co., Ltd | Concrete pumping structure |
| CN101956459A (en) * | 2010-09-19 | 2011-01-26 | 三一重工股份有限公司 | Pumping machine |
| CN102505850A (en) * | 2011-11-09 | 2012-06-20 | 中联重科股份有限公司 | Mounting structure of concrete pumping unit and concrete pumping equipment |
| CN103321871A (en) * | 2013-06-21 | 2013-09-25 | 中联重科股份有限公司 | Pumping mechanism and pumping equipment comprising same |
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| Publication number | Publication date |
|---|---|
| CN103775300A (en) | 2014-05-07 |
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