CN201531121U - Connecting support, distributing arm provided with connecting support and concrete delivery machine - Google Patents
Connecting support, distributing arm provided with connecting support and concrete delivery machine Download PDFInfo
- Publication number
- CN201531121U CN201531121U CN2009202447885U CN200920244788U CN201531121U CN 201531121 U CN201531121 U CN 201531121U CN 2009202447885 U CN2009202447885 U CN 2009202447885U CN 200920244788 U CN200920244788 U CN 200920244788U CN 201531121 U CN201531121 U CN 201531121U
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- Prior art keywords
- supportive body
- support
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- concrete
- supported
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- 239000004567 concrete Substances 0.000 title claims abstract description 70
- 239000000835 fiber Substances 0.000 claims abstract description 45
- 239000011347 resin Substances 0.000 claims abstract description 24
- 229920005989 resin Polymers 0.000 claims abstract description 24
- 239000004744 fabric Substances 0.000 claims description 68
- 230000003319 supportive effect Effects 0.000 claims description 54
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 15
- 230000005540 biological transmission Effects 0.000 description 14
- 230000000694 effects Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000007769 metal material Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920006387 Vinylite Polymers 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000541 pulsatile effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The utility model discloses a connecting support used for connecting a delivery pipe and a distributing arm frame, a distributing arm with the connecting support, and a concrete delivery machine with the distributing arm. The connecting support comprises a long type support body, a flange and a connecting plate which are respectively fixed at two ends of the support body, and the support body, the flange and the connecting plate are all formed by fibers and resin covering the fibers. Preferably, extension direction of at least part of the fibers in the support body is perpendicular to cross section of the same. The connecting support is capable of ensuring relatively high strength and simultaneously retaining relatively light weight, thereby being capable of reducing weight of the distributing arm. The connecting support is provided with the relatively high strength in a preset direction, and is capable of sufficiently bringing fixing connection function of the connecting support into full play, and reducing weight of the connecting support. The connecting support has the advantages of having relatively strong fatigue resistance and capability of absorbing vibration produced by the concrete delivery machine.
Description
Technical field
The utility model relates to a kind of parts of concrete conveying pipe, and particularly a kind of support that is connected that is used to connect carrier pipe and cloth jib also relates to a kind of cloth arm and a kind of concrete conveyer that this connection is supported that have.
Background technology
At present, when carrying out constructions work, generally use concrete conveyer delivering concretes such as concrete mixer, concrete distributing frame.Concrete conveyer generally comprises concrete pump, the cloth arm, and the cloth arm comprises cloth jib and conveyance conduit; Conveyance conduit is fixed on the cloth jib, and the one end communicates with the delivery outlet of concrete pump, and the other end is stretched over job position.In the delivering concrete process, the outgoing position of cloth jib control conveyance conduit, concrete pump provides suitable power, make concrete mud suitably flow through conveyance conduit under the pressure effect, flow out from the outlet of conveyance conduit, arrive predetermined place, to carry out concrete pouring or perfusion operation away from the position of agitator.
Conveyance conduit is joined in proper order by a plurality of carrier pipes and forms, and links to each other by suitable mechanism between the adjacent carrier pipe, has the conveyance conduit of suitable length with formation, with transmission and concrete transmission to the precalculated position.The cloth jib comprises the joint arm that a plurality of orders are hinged, have suitable driving mechanism between the joint arm, with the relative position between the change adjacent segments arm, thus the position of control conveyance conduit outlet, adjust the position that concrete flows out, realize adjustment the construction operation position.
The joint arm of carrier pipe and cloth jib is fixed, and the change of position between the adjacent segments arm for convenience makes things convenient for the maintenance and the installation of carrier pipe, and is continuous with being connected support between the joint arm of carrier pipe and cloth jib; Connect and support junction plate and the flange that comprises microscler supportive body and be fixed on the supportive body two ends, fixing hole is set on junction plate and the flange usually, flange is fixed by the joint arm of securing member and cloth jib, and junction plate is used for fixing carrier pipe, thereby carrier pipe is fixed on the cloth jib.
In order to guarantee the carrier pipe reliability of fixation, guarantee the reliability of transmission and concrete transmission work, for the purpose of safety, existing connection carrier pipe supports with being connected of cloth jib and is all made by metal material.And when delivering concrete, cloth jib one end and concrete distributing frame or concrete mixer are fixed, and the other end is unsettled, and the cloth jib bears bigger moment of flexure, produces bigger stress, therefore, require the cloth jib to have higher intensity.The weight that will inevitably increase conveyance conduit is supported in the connection that metal is made, and then increases the stressed of cloth jib; In addition, heavier metal connects support and also is very easy to cause the concrete conveyer overload, when serious, also can cause security incident.
In addition, the connection of metal is supported concrete conveyer weight is increased, and then increases the energy consumption of concrete conveyer.
The utility model content
At the problems referred to above, first purpose of the present utility model is, a kind of support that is connected that is used to connect carrier pipe and cloth jib is provided, guarantee to connect support have higher-strength in, alleviate and connect the weight that supports.
Second purpose of the present utility model is, provides a kind of and has the cloth arm that above-mentioned connection is supported, thereby reduce by connecting the load that supported weight causes.
The 3rd purpose of the present utility model is, a kind of concrete conveyer with above-mentioned cloth arm is provided.
In order to realize above-mentioned first purpose, the connection that the utility model provides is supported and is comprised microscler supportive body, with flange that is separately fixed at the supportive body two ends and junction plate, described supportive body, flange and junction plate form by fiber and the resin that wraps up this fiber.
Preferably, the bearing of trend of the described fiber of at least a portion is vertical with the lateral cross section of this supportive body in the described supportive body.
Preferably, the bearing of trend of the described fiber of part is parallel with the lateral cross section of this supportive body in the described supportive body.
Preferably, described flange and supportive body are structure as a whole.
Preferably, has adhesive linkage between described junction plate and the supportive body.
In order to realize above-mentioned second purpose, the cloth arm that the utility model provides comprises cloth jib and the conveyance conduit that is installed on the cloth jib, described conveyance conduit comprises a plurality of carrier pipes, described carrier pipe is fixed by connecting to support with the cloth jib, and described connection is supported above-mentioned any connection and supported.
In order to realize above-mentioned the 3rd purpose, the concrete conveyer that the utility model provides comprises concrete pump and cloth arm, and the delivery outlet of described concrete pump communicates with the conveyance conduit of cloth arm, and described cloth arm is above-mentioned cloth arm.
The utility model provides is used for connecting the support that is connected of carrier pipe and cloth jib, and supportive body, flange and junction plate form by fiber and the resin that wraps up this fiber.Because fiber has higher intensity with the support that is connected that resin forms, the intensity of its intensity and steel plate is suitable, but its density has only 1/4 of steel density, therefore, the connection that the utility model provides is supported can be when guaranteeing to have higher-strength, keep less weight, thereby can reduce the weight of cloth arm preferably, reduce the cloth jib owing to connect the load capacity that supported weight causes; And then, keeping increasing the flow of concrete conveyer delivering concrete under the constant situation of cloth jib intensity, improve concrete transfer efficiency; In addition, reduce, can reduce the power consumption of concrete conveyer, reduce the use cost of concrete conveyer owing to connect supported weight.Compared with prior art, each component parts that the connection that the utility model provides is supported is formed by the resin of fiber and this fiber of parcel, can also produce following technique effect:
The first, because the structure that fiber and resin form has anisotropy aspect strength character, have bigger intensity thereby can make connection be supported on predetermined direction, give full play to the fixedly connected function that connects support, reduce the weight that connects support.
The second, because the structure that fiber and resin form has higher fatigue performance, have stronger endurance life thereby make to connect to support, can adapt to the characteristics of concrete conveyer load pulsatile change well, prolongation connects the application life of supporting.
Three, because the structure that fiber and resin form has bigger internal damping coefficient, has the better damping performance, and has higher natural frequency, the interface can absorb corresponding vibrational energy, therefore, connect and support the vibration that also can absorb the concrete conveyer generation preferably, thereby can reduce the vibration of concrete conveyer, alleviate the fatigue damage of each parts of concrete conveyer.
Four, owing to have gradual characteristic during the structural break that fiber and resin form, connect the process that supports inefficacy and comprise a plurality of stages, comprise a series of stages such as matrix damage, cracking, interface unsticking, fibrous fracture, therefore, in use, can find in early days to connect and support the problem that exists, prevent trouble before it happens, prevent the carrier pipe discontinuity, improve the safety that conveyance conduit uses.
In further technical scheme, the described fiber bearing of trend of at least a portion is vertical with the lateral cross section of this supportive body in the described supportive body; The connection that this technical scheme provides is supported has bigger flexural strength, when supportive body has bigger length, ability with the bigger moment of flexure active force of opposing, can provide bigger support force for conveyance conduit, and then conveyance conduit can be done bigger, improve the concrete flow of conveyance conduit, thereby can improve transmission and concrete transmission efficient more further.
In further technical scheme, the bearing of trend of a part of described fiber is parallel with this supportive body lateral cross section in the described supportive body; The supportive body that this technical scheme provides has bigger anti-shear ability, thereby can provide bigger support force for conveyance conduit, provides prerequisite for improving transmission and concrete transmission efficient.
Have above-mentioned technique effect owing to connect to support, the cloth arm with above-mentioned connection support that the utility model provides also has the corresponding techniques effect; Equally, the concrete conveyer that comprises this cloth arm also has corresponding technique effect.
Description of drawings
Fig. 1 is the structural representation that main apparent direction is supported in connection that the utility model embodiment one provides;
Fig. 2 is the structural representation of the side-looking direction that supports of the connection that provides of embodiment one;
Fig. 3 is connection support that embodiment one the provides structural representation when cooperating with carrier pipe.
The specific embodiment
According to traditional technical thought, each parts of concrete conveyer must be made of metal material just can provide enough intensity; Because conveyance conduit itself will bear very big pressure, and to therefore, support, will make of metal material especially, could guarantee the carrier pipe reliability of fixation with transmission and concrete transmission to position higher or far away for the connection that connects carrier pipe; And along with cloth jib length increases, the increase of concrete pump delivering concrete flow more needs between carrier pipe and the cloth jib to be connected to support and to link to each other with what metal material was made.Yet the use that the connection of metal is supported will cause the increase of cloth arm weight; And along with the maximization of concrete conveyer, the problem that the cloth arm is overweight is more and more outstanding, has become the restraining factors that concrete conveyer further develops.Current, in order to reduce the weight of cloth arm, the technology path of taking is normally by hot-working, make to connect to support and have higher intensity, to reduce to connect the weight of support, and this technology path can increase the cost that connection is supported inevitably, causes to connect and supports the uneconomical of manufacturing and use.
The technology path that connects support with prior art is different, the utility model is from a new technology path, overcome and made the prejudice that connects support with metal material in the prior art, making is connected support with resin with fiber, make the connection support of formation have suitable intensity, and have less weight; Can when guaranteeing the carrier pipe connection reliability, reduce the connection supported weight like this, thereby reduce the weight of cloth arm.
Below in conjunction with accompanying drawing the utility model is described in detail, the description of this part only is exemplary and explanatory, should any restriction not arranged to protection domain of the present utility model.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation that main apparent direction is supported in connection that the utility model embodiment one provides; Fig. 2 is the structural representation of the connection support-side apparent direction that provides of embodiment one.
The connection that embodiment one provides is supported and is used to connect carrier pipe and cloth jib, and flange 210 and the junction plate 220 that comprises microscler supportive body 100 and be separately fixed at supportive body 100 two ends supported in this connection.In this example, supportive body 100 is columnar structured, and its lateral cross section is an annular.Flange is positioned at supportive body 100 the inners, and has suitable hole, by securing member supportive body 100 is fixed on the joint arm of cloth jib.Junction plate 220 is fixed on supportive body 100 outer ends, forms the outside groove shape structure of opening, and has outward extending built-in edge, has corresponding hole on the built-in edge.Structural representation when the connection support that embodiment one as shown in Figure 3 provides cooperates with carrier pipe, when fixed ducts 300, carrier pipe 300 inboards snap in the groove shape structure of junction plate 220, the outside cooperates with suitable pipe clamp, pipe clamp is fixed by the securing member that is fit to junction plate 220 again, and carrier pipe 300 is fixing.
Be appreciated that to connect to support to be other concrete structures, such as: all right i iron shape of the lateral cross section of supportive body 100, two web i iron shape, channel steel shape, Two bors d's oeuveres channel steel shape.Junction plate 220 is not limited to said structure, also can be other concrete structures, as being rectangular configuration.
Described supportive body 100, flange 210 and junction plate 220 form by fiber and the resin that wraps up this fiber.Because fiber becomes material to have very high intensity with resin-shaped, its intensity and steel strength are suitable, and its density has only 1/4 of steel density, the connection of being made by this material is supported each parts and is had higher intensity, therefore, connect support and can when guaranteeing to have higher-strength, keep less weight, thereby reduce the weight of cloth arm greatly, reduce the cloth jib owing to connecting the load capacity that supported weight produces; And then can improve the transfer efficiency of concrete conveyer delivering concrete keeping increasing the flow of concrete pump delivering concrete under the constant situation of cloth jib intensity.In addition,, can reduce the power consumption of concrete conveyer, reduce the cost of transmission and concrete transmission because cloth arm weight reduces.
Compared with prior art, the connection that this example provides is supported each parts and is formed by the material of the resin that comprises fiber and this fiber of parcel respectively, and this structure also has following technique effect:
The first, because the structure that fiber and resin form has anisotropy aspect strength character, thereby make the intensity that connects support also have anisotropic characteristics, thereby can make supportive body 100 have bigger intensity in predetermined direction, give full play to and connect the function that supports, the weight that the minimizing connection is supported.According to connecting the job requirement of supporting, can make the bearing of trend of at least a portion fiber in the supportive body 100 vertical with the lateral cross section of this supportive body 100, the structure that fiber and resin are formed has higher intensity on supportive body 100 longitudinal directions, and then can be when supportive body 100 be longer, ability with the bigger moment of flexure active force of opposing, maintenance improves the reliability that supports carrier pipe to the support force of carrier pipe.Can also make the bearing of trend of a part of fiber parallel with the lateral cross section of this supportive body 100, so that supportive body 100 has bigger anti-shear ability, thereby can provide bigger support force for conveyance conduit, improve the reliability that carrier pipe axially connects, provide prerequisite for improving transmission and concrete transmission efficient.
The second, because the structure that fiber and resin form has higher fatigue performance, thereby make supportive body 100, flange 210 and junction plate 220 also have stronger endurance life, and then can improve the application life that connects support.
Three, because the structure that fiber and resin form has the better damping performance, and has higher natural frequency, the interface can absorb vibrational energy, therefore, connect to support and also can absorb the vibration that concrete conveyer produces preferably, thereby alleviate the vibration of concrete conveyer, alleviate the fatigue damage of each parts of concrete conveyer.
Four, owing to have gradual characteristic during the structural break that fiber and resin form, connect the process that supports inefficacy and comprise a plurality of stages, comprise a series of stages such as resin damage, cracking, interface unsticking, fibrous fracture, therefore, in use, can in time find to connect and support the problem that exists, prevent trouble before it happens, improve the safety that conveyance conduit uses.
The resin and the fiber that form said structure can have multiple choices, and what resin can be in unsaturated-resin, vinylite, phenol-formaldehyde resin modified and the epoxy resin is a kind of; Fiber can be carbon fiber, glass fiber, aromatic hydrocarbons fiber, boron fibre, spin in synthetic fibre fiber and the high-strength polyethylene fiber one or more combination.Difference according to actual needs can select for use the fiber of various combination and resin to form supportive body 100, flange 210 and junction plate 220, to satisfy different needs.
The connected mode of flange 210 and supportive body 100, and junction plate 220 and supportive body 100 connected modes can have multiple mode; Optimized technical scheme is that flange 210 is structure as a whole with supportive body 100, can guarantee carrier pipe like this and be connected the reliability that supports.Because being the resin of fiber and parcel fiber, supportive body 100 and junction plate 220 form, therefore, can between junction plate 220 and supportive body 100, suitable adhesive linkage be set, fix by bonding junction plate 220 and the supportive body 100 of making, select to be fit to bonding agent and just can guarantee reliability of fixation.
The connection that embodiment one provides is supported and can be obtained by following method.
Obtain the method for supportive body 100: make two formers, adopt the method for priming by vacuum to make two semicanals; Adopt hand to stick with paste technology two semicanal hands are stuck with paste into an overall structure, processing is handled the back and is formed supportive body 100.
Making flange 210 can adopt hand to paste the mode of work, cuts and carry out post processing to obtain.
At last, it is bonding to adopt composite structure glue that supportive body 100 and junction plate 220 are carried out, and forms adhesive linkage between supportive body 100 and junction plate 220.To support the reliability that each component parts connects in order guaranteeing to connect, can also to adopt hand to stick with paste technology docking port place and strengthen.
Be appreciated that obtaining above-mentioned connection support is not limited to said method, hand paste, injection, mold pressing, pultrusion, winding etc. all can obtain to connect and support.
On the basis that provides above-mentioned connection to support, the utility model also provides a kind of cloth arm, this cloth arm comprises cloth jib and the conveyance conduit that is installed on the cloth jib, described conveyance conduit comprises a plurality of carrier pipes, described carrier pipe is fixed by connect supporting with the cloth jib, described connection be supported for above-mentioned any.On the basis that the cloth arm is provided, a kind of concrete conveyer also is provided, comprise concrete pump and cloth arm, the delivery outlet of described concrete pump communicates with the conveyance conduit of cloth arm, and described cloth arm is above-mentioned cloth arm; Concreting machinery can be concrete mixer and concrete distributing frame.Have above-mentioned technique effect because the connection that the utility model provides is supported, the cloth arm and the concrete conveyer that provide also have the corresponding techniques effect.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. one kind connects support, be used to connect carrier pipe and cloth jib, this connection is supported and is comprised microscler supportive body (100), with flange (210) that is separately fixed at supportive body (100) two ends and junction plate (220), it is characterized in that described supportive body (100), flange (210) and junction plate (220) form by the resin of fiber and this fiber of parcel.
2. connection according to claim 1 is supported, and it is characterized in that, the bearing of trend of the described fiber of at least a portion is vertical with the lateral cross section of this supportive body (100) in the described supportive body (100).
3. connection according to claim 2 is supported, and it is characterized in that, the bearing of trend of the described fiber of part is parallel with the lateral cross section of this supportive body (100) in the described supportive body (100).
4. connection according to claim 3 is supported, and it is characterized in that, described flange (210) is structure as a whole with supportive body (100).
5. connection according to claim 4 is supported, and it is characterized in that having adhesive linkage between described junction plate (220) and the supportive body (100).
6. cloth arm, comprise cloth jib and the conveyance conduit that is installed on the cloth jib, described conveyance conduit comprises a plurality of carrier pipes, and described carrier pipe is fixed by connecting to support with the cloth jib, it is characterized in that described connection is supported for each described connection support among the claim 1-5.
7. a concrete conveyer comprises concrete pump and cloth arm, and the delivery outlet of described concrete pump communicates with the conveyance conduit of cloth arm, it is characterized in that, described cloth arm is the described cloth arm of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202447885U CN201531121U (en) | 2009-10-30 | 2009-10-30 | Connecting support, distributing arm provided with connecting support and concrete delivery machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202447885U CN201531121U (en) | 2009-10-30 | 2009-10-30 | Connecting support, distributing arm provided with connecting support and concrete delivery machine |
Publications (1)
| Publication Number | Publication Date |
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| CN201531121U true CN201531121U (en) | 2010-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202447885U Expired - Fee Related CN201531121U (en) | 2009-10-30 | 2009-10-30 | Connecting support, distributing arm provided with connecting support and concrete delivery machine |
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| CN (1) | CN201531121U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012013105A1 (en) * | 2010-07-29 | 2012-02-02 | 湖南三一智能控制设备有限公司 | Supporting device for delivery pipe and concrete machinery with the same |
| CN102493651A (en) * | 2011-11-30 | 2012-06-13 | 中联重科股份有限公司 | Concrete equipment and arm support thereof |
| CN102995901A (en) * | 2012-12-17 | 2013-03-27 | 中联重科股份有限公司 | Composite material arm support, engineering machinery and manufacturing method of composite material arm support |
| CN110984578A (en) * | 2019-11-07 | 2020-04-10 | 中联重科股份有限公司 | Arm support, engineering machinery and manufacturing method of arm support |
-
2009
- 2009-10-30 CN CN2009202447885U patent/CN201531121U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012013105A1 (en) * | 2010-07-29 | 2012-02-02 | 湖南三一智能控制设备有限公司 | Supporting device for delivery pipe and concrete machinery with the same |
| CN102493651A (en) * | 2011-11-30 | 2012-06-13 | 中联重科股份有限公司 | Concrete equipment and arm support thereof |
| WO2013078919A1 (en) * | 2011-11-30 | 2013-06-06 | 中联重科股份有限公司 | Concrete device and arm support thereof |
| CN102995901A (en) * | 2012-12-17 | 2013-03-27 | 中联重科股份有限公司 | Composite material arm support, engineering machinery and manufacturing method of composite material arm support |
| CN102995901B (en) * | 2012-12-17 | 2014-02-19 | 中联重科股份有限公司 | Composite material arm support, engineering machinery and manufacturing method of composite material arm support |
| CN110984578A (en) * | 2019-11-07 | 2020-04-10 | 中联重科股份有限公司 | Arm support, engineering machinery and manufacturing method of arm support |
| CN110984578B (en) * | 2019-11-07 | 2020-11-06 | 中联重科股份有限公司 | Arm support, engineering machinery and manufacturing method of arm support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100721 Termination date: 20151030 |
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| EXPY | Termination of patent right or utility model |