CN109914418A - Concrete casting device - Google Patents
Concrete casting device Download PDFInfo
- Publication number
- CN109914418A CN109914418A CN201910314030.2A CN201910314030A CN109914418A CN 109914418 A CN109914418 A CN 109914418A CN 201910314030 A CN201910314030 A CN 201910314030A CN 109914418 A CN109914418 A CN 109914418A
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- bracket
- casting device
- concrete casting
- slideway
- vibrating mechanism
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- 238000005266 casting Methods 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 114
- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241000221931 Hypomyces rosellus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
Abstract
The present invention provides a kind of concrete casting devices, belong to technical field of civil engineering, supporting mechanism pours mechanism and vibrating mechanism, it pours mechanism and vibrating mechanism is set on supporting mechanism, supporting mechanism, which is also used to drive, pours mechanism to operating area progress concreting, and vibrating mechanism is driven to vibrate and flatten the concrete in operating area.Mechanism will be poured by supporting mechanism and vibrating mechanism is integrated, and supporting mechanism is also used to provide driving function to pouring mechanism and vibrating mechanism, so that the achievable multiple functions of pouring, vibrate and flatten of concrete casting device, the number of devices for reducing required erection in process of construction reduces whole task difficulty.
Description
Technical field
The invention belongs to technical field of civil engineering, are to be related to a kind of concrete casting device more specifically.
Background technique
" the aerial cobweb " of " zipper road " and street network formula overhead line that Chinese city excavates repeatedly is very universal, no
The trip for only affecting citizen has also seriously affected city appearance environment, and heavy rain causes whole city waterlogging, pipeline leakage quick-fried in recent years
The problem of taking place frequently that fried, road surface such as collapses at the events attracts wide attention.To solve the above-mentioned problems, the underground space is developed, is carried out
Underground pipe gallery construction is played an important role to people's livelihood primary demand and the city integrated bearing capacity of raising is met.
But in the construction project of underground pipe gallery, when using pouring device progress concreting, it is also necessary to additional
Vibration leveling apparatus is set up, to be vibrated to the concrete poured and levelling, but vibration leveling apparatus is set up and easily leads to work
Industry place increases, and especially in some narrow operating environments, causes operation difficult.
Summary of the invention
The purpose of the present invention is to provide a kind of concrete casting devices, it is intended to which solving underground pipe gallery pouring construction needs
It additionally to set up vibration leveling apparatus and easily lead to working space increase, lead to the problem of operation difficulty.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of concrete casting device, the coagulation are provided
Soil pours device and includes: supporting mechanism, pours mechanism and vibrating mechanism, described to pour mechanism and the vibrating mechanism is set to institute
It states on supporting mechanism, the supporting mechanism is also used to drive the mechanism that pours to operating area progress concreting, and
The vibrating mechanism is driven to vibrate and flatten the concrete in the operating area.
The supporting mechanism includes bracket, slideway and connector in one of the embodiments, and the bracket includes holding to lead
Bracket, motion bracket and slide assemblies, the motion bracket are led bracket slide and are connect with described hold, and the slide assemblies are set to institute
It states to hold and leads frame bottom to hold described in movement and lead bracket and the motion bracket, the slideway is layed on the motion bracket,
The mechanism that pours is slideably positioned on the slideway, and the vibrating mechanism hangs on the motion bracket by the connector
On.
The supporting mechanism further includes the first driving unit and the second driving unit in one of the embodiments, described
First driving unit is separately connected the motion bracket and described hold leads bracket, to drive the motion bracket to lead branch in described hold
Slided on frame, second driving unit be separately connected it is described pour mechanism and the slideway, existed with pouring mechanism described in driving
It is slided on the slideway.
First driving mechanism and second driving mechanism are linear electric machine in one of the embodiments,.
The motion bracket holds the top for leading bracket set on described in one of the embodiments, and the bracket is two
A two sides to be respectively erected in the operating area, the slideway along the both ends of the bracket arragement direction, respectively with two
The top of each motion bracket of the bracket is fixed, and the connector is two groups, and is respectively arranged on the vibrating mechanism edge
The both ends of the bracket arragement direction make the vibrating mechanism to be separately connected each motion bracket of two brackets
Between two brackets and it is suspended from below the slideway.
The mechanism that pours includes stock supporting plate, hopper and connecting tube in one of the embodiments, the stock supporting plate and institute
Slideway is stated to be slidably connected, the hopper is mounted on the stock supporting plate, described connecting tube one end pass through the stock supporting plate and with institute
State hopper connection.
In the shape of a spiral, and the quantity of the connecting tube is for the inner passage of the connecting tube in one of the embodiments,
It is multiple.
The connector includes connection frame and connecting rod in one of the embodiments, the connection frame and the vibration
The fixation of mechanism, the opposite both ends of the connecting rod are connected and fixed with the connection frame and the slideway respectively.
In one of the embodiments, the motion bracket it is described hold to lead moved back and forth along the vertical direction on bracket, institute
The bottom for stating vibrating mechanism is plane, and the bottom offers multiple vacancy sections.
The end face outer profile triangular shape of the vibrating mechanism in one of the embodiments,.
The beneficial effect of concrete casting device provided by the invention is: compared with prior art, this concreting
Device will pour mechanism and vibrating mechanism is integrated by supporting mechanism, and supporting mechanism is also used to pouring mechanism and vibration
Mechanism provides driving function, so that the achievable multiple functions of pouring, vibrate and flatten of concrete casting device, reduce construction
The number of devices set up needed in the process, especially in some narrow construction projects, such as the construction project of underground pipe gallery,
The reduction of number of devices correspondingly reduces the space size requirement to working space, has decreased whole task difficulty.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the structural schematic diagram of concrete casting device provided in an embodiment of the present invention；
Fig. 2 is concrete casting device schematic view of the front view shown in FIG. 1；
Fig. 3 is concrete casting device overlooking structure diagram shown in FIG. 1.
In figure: 100, supporting mechanism；110, bracket；111, it holds and leads bracket；112, motion bracket；113, slide assemblies；
200, mechanism is poured；210, stock supporting plate；220, hopper；230, connecting tube；300, vibrating mechanism；350, vacancy section.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
Referring to Fig. 1, existing be illustrated concrete casting device provided by the invention.The concrete casting device,
Including supporting mechanism 100, pour mechanism 200 and vibrating mechanism 300, supporting mechanism 100 for install it is fixed pour mechanism 200 and
Vibrating mechanism 300, while mechanism 20 is poured to operating area (such as in the construction project of underground pipe gallery for respectively driving
In, operating area can be piping lane foundation pit) concreting, and driving vibrating mechanism 300 are carried out to mixed in operating area
Solidifying soil is further vibrated and levelling.Wherein, by setting supporting mechanism 100 to pour mechanism 200 and vibrating mechanism 300 into
Row integration, and supporting mechanism 100 can also be to mechanism 200 and the offer driving function of vibrating mechanism 300 be poured, in underground pipe gallery
Construction project in, pouring, vibrate and flattening for concrete can be completed in the concrete casting device provided through the invention
Multiple functions reduce the number of devices of required erection in construction project, correspondingly reduce and want to the space size of working space
It asks, has decreased whole task difficulty.
In the present embodiment, supporting mechanism 100 include bracket 110, slideway 120 and connector 130, middle slideway 120 and
Connector 130 is set on bracket 110, for that will pour mechanism 200 respectively and vibrating mechanism 300 is mounted on bracket 110.
Specifically, bracket 110 includes holding to lead bracket 111, motion bracket 112 and slide assemblies 113, and motion bracket 112 is sliding
It moves to be connected to hold and lead on bracket 111, slide assemblies 113, which are set to hold, leads 111 bottom of bracket, and herein, the slide assemblies 113 are for moving
Dynamic hold leads bracket 111 and motion bracket 112, in addition, slideway 120 is laid on motion bracket 112, pours the sliding of mechanism 200 and sets
It sets on slideway 120, connector 130 is connect with motion bracket 112, and vibrating mechanism 300 is suspended on motion bracket 112.
In the present embodiment, slide assemblies 113 are multiple pulleys, to lead bracket 111 and movement branch for moving horizontally to hold
Frame 112, to accordingly vibrating mechanism 300 be driven to move in the horizontal direction.Further, connector 130 include connection frame 131 and
Connecting rod 132, the fixation of connection frame 131 and vibrating mechanism 300, the opposite both ends of connecting rod 132 respectively with connection frame 131 and sliding
Road 130 is connected and fixed.
In some other embodiment, the one end of connecting rod 132 far from connection frame 131 can also directly and motion bracket
112 are connected and fixed.
In some other embodiment, the setting of slideway 120 is led on bracket 111 holding, to reduce motion bracket 112 in cunning
Influence during dynamic to mechanism 200 is poured.It is understood that at this point, the one end of connecting rod 132 far from connection frame 131 is straight
It connects and is connected and fixed with motion bracket 112.
Further, supporting mechanism 100 further includes the first driving unit and the second driving unit, the first driving unit difference
Connection holds and leads bracket 111 and motion bracket 112, to drive motion bracket 112 to be slided on bracket 111 holding to lead, to make to vibrate
Mechanism 300 vibrates, and the second driving unit is separately connected slideway 120 and pours mechanism 200, pours mechanism 200 with driving and exists
Slided on slideway 120, thus promoted pour mechanism 200 pour range.
Specifically, motion bracket 112 is led bracket 111 and be slidably connected with holding along the vertical direction, the first driving unit is corresponding
Driving motion bracket 112 reciprocatingly slides on bracket 111 along the vertical direction holding to lead, and motion bracket 112 passes through the synchronization of connector 130
Vibrating mechanism 300 is driven to be reciprocatingly slided along the vertical direction to form vibration, to realize function of vibrating.And pass through motion bracket 112
Vibrating mechanism 300 is arranged in proper height, vibrating mechanism 300 is such as arranged in the levelling stratification of operating area inner concrete,
Then it moves horizontally to hold by slide assemblies 113 and leads bracket 111 and motion bracket 112, it is corresponding to drive vibrating mechanism 300 is horizontal to move
It is dynamic, leveling function can be realized.
More specifically, the first driving unit and the second driving unit are linear electric machine, in the first driving unit, linearly
The mover of the stator of motor and linear electric machine leads bracket 111 and motion bracket 112 is connected and fixed with holding respectively, when the first driving is single
When the mover movement of the linear electric machine of member, the movement of motion bracket 112 is accordingly driven to be slided on bracket 111 holding to lead；Second
In driving unit, the mover of the stator of linear electric machine and linear electric machine respectively with slideway 120 and pour mechanism 200 and be connected and fixed,
When the movement of the mover of the linear electric machine of the second driving unit, accordingly drives and poured mechanism 200 and slided on slideway 130.
Further, motion bracket 112, which is set to, holds the top for leading bracket 111, and bracket 110 is two and is respectively erected in work
The two sides in industry region, slideway 130 respectively state motion bracket with two brackets 110 respectively along the both ends of 110 arragement direction of bracket
112 top is fixed, and connector 130 is two groups, and is respectively arranged on institute's vibrating mechanism 300 along the both ends of 110 arragement direction of bracket,
To be separately connected each motion bracket 112 of two brackets 110, it is located at vibrating mechanism 300 between two brackets 110 and is suspended from cunning
130 lower section of road, and face operating area.
Further join Fig. 2 to Fig. 3 in detail, pouring mechanism 200 includes stock supporting plate 210, hopper 220 and connecting tube 230, stock supporting plate
210 are set to one side of the slideway 130 far from motion bracket 112, and are slidably connected with slideway 130, and hopper 220 is mounted on stock supporting plate
On 210, to be slided on slideway 130 by stock supporting plate 210,230 one end of connecting tube passes through stock supporting plate 210 and connects with hopper 220
It is logical, hose (not shown) is poured by connecting connecting tube 230 far from one end of hopper 220, it can be by the coagulation in hopper 220
Soil is poured into specified operating area.
Specifically, the inner passage of connecting tube 230 be in spiral, and the quantity of connecting tube 230 be it is multiple, by being separately connected
More pour hose, and the multipoint mode that concrete can be realized pours.
Further, in the present embodiment, slideway 130 is two and is spaced setting, the both ends of stock supporting plate 210 respectively with
Two slideways 130 are slidably connected, and connecting tube 230 passes through stock supporting plate 210 and connect with 220 bottom surface of hopper, and connecting tube 230 is far from hopper
220 one end is stretched out between two slideways 130.
Further, in the present embodiment, the quantity of connecting rod 132 is two in every group of connector 130, two connections
The connection frame 131 of bar 132 and vibrating mechanism 300 wherein one end is correspondingly connected with, and two connecting rods 132 are far from being correspondingly connected with frame 131
One end be separately connected the bottom for fixing two slideways 130, i.e., two slideways 130 are far from the one side for pouring mechanism 200.
In the present embodiment, the bottom surface of vibrating mechanism 300 offers multiple vacancy sections 350, right to promote vibrating mechanism 300
The effect of vibrating of concrete, and the bottom surface of vibrating mechanism 300 be plane, when vibrating mechanism 300 by slide assemblies 113 carry out it is flat
When shifting, convenient for being flattened to concrete.
Further, 300 end face outer profile triangular shape of vibrating mechanism, to promote itself structural stability, at it
In its some embodiment, 300 end face outer profile of vibrating mechanism can also trapezoidal or rectangle.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of concrete casting device, which is characterized in that the concrete casting device includes: supporting mechanism, pours mechanism
And vibrating mechanism, described to pour mechanism and the vibrating mechanism is set on the supporting mechanism, the supporting mechanism is also used to
Mechanism is poured described in driving, and concreting, and the driving vibrating mechanism are carried out in the operating area to operating area
Concrete vibrated and flattened.
2. concrete casting device according to claim 1, which is characterized in that the supporting mechanism includes bracket, slideway
And connector, the bracket include holding to lead bracket, motion bracket and slide assemblies, the motion bracket and described hold lead bracket cunning
Dynamic connection, the slide assemblies are set to described hold and lead frame bottom to hold described in movement and lead bracket and the motion bracket, described
Slideway is layed on the motion bracket, and the mechanism that pours is slideably positioned on the slideway, and the vibrating mechanism passes through institute
Connector is stated to hang on the motion bracket.
3. concrete casting device according to claim 2, which is characterized in that the supporting mechanism further includes the first driving
Unit and the second driving unit, first driving unit is separately connected the motion bracket and described hold leads bracket, with driving
The motion bracket it is described hold to lead slided on bracket, second driving unit, which is separately connected, described pours mechanism and the cunning
Road is slided on the slideway with pouring mechanism described in driving.
4. concrete casting device according to claim 3, which is characterized in that first driving mechanism and described second
Driving mechanism is linear electric machine.
5. concrete casting device according to claim 2, which is characterized in that the motion bracket is set to described hold and leads branch
The top of frame, and the bracket is two two sides to be respectively erected in the operating area, the slideway is arranged along the bracket
The both ends in cloth direction, the top with each motion bracket of two brackets is fixed respectively, and the connector is two groups, and
The vibrating mechanism is respectively arranged on along the both ends of the bracket arragement direction, to be separately connected each fortune of two brackets
Dynamic bracket is located at the vibrating mechanism between two brackets and is suspended from below the slideway.
6. concrete casting device according to any one of claims 2 to 5, which is characterized in that the mechanism that pours includes
Stock supporting plate, hopper and connecting tube, the stock supporting plate are slidably connected with the slideway, and the hopper is mounted on the stock supporting plate,
Described connecting tube one end passes through the stock supporting plate and is connected to the hopper.
7. concrete casting device according to claim 6, which is characterized in that further include at least one following feature:
The inner passage of the connecting tube is in the shape of a spiral；And
The quantity of the connecting tube is multiple.
8. concrete casting device according to any one of claims 2 to 5, which is characterized in that the connector includes connecting
Connect frame and connecting rod, the fixation of the connection frame and the vibrating mechanism, the opposite both ends of the connecting rod respectively with the company
It connects frame and the slideway is connected and fixed.
9. concrete casting device according to claim 2, which is characterized in that the motion bracket leads bracket in described hold
On move back and forth along the vertical direction, the bottom of the vibrating mechanism is plane, and the bottom offers multiple vacancy sections.
10. concrete casting device according to claim 1, which is characterized in that the end face outer profile of the vibrating mechanism
Triangular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910314030.2A CN109914418A (en) | 2019-04-18 | 2019-04-18 | Concrete casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910314030.2A CN109914418A (en) | 2019-04-18 | 2019-04-18 | Concrete casting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109914418A true CN109914418A (en) | 2019-06-21 |
Family
ID=66977774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910314030.2A Pending CN109914418A (en) | 2019-04-18 | 2019-04-18 | Concrete casting device |
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| Country | Link |
|---|---|
| CN (1) | CN109914418A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576253A (en) * | 2020-05-20 | 2020-08-25 | 中铁六局集团有限公司 | Bridge deck pavement surface crack control method |
| CN112343056A (en) * | 2020-11-18 | 2021-02-09 | 杨玉庆 | Concrete pouring device for hydraulic engineering building and use method thereof |
| CN112832244A (en) * | 2021-01-12 | 2021-05-25 | 倪苏宁 | Concrete placement device for hydraulic engineering |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2980242B1 (en) * | 1998-10-01 | 1999-11-22 | 西松建設株式会社 | Concrete placing method and concrete placing mechanism |
| CN205063359U (en) * | 2015-09-15 | 2016-03-02 | 李兆华 | Concrete evener that vibrates |
| CN206663469U (en) * | 2017-04-14 | 2017-11-24 | 宣鹏 | A kind of special concrete slab of Construction of Civil Engineering pours device |
| CN207659971U (en) * | 2017-12-19 | 2018-07-27 | 路港集团有限公司 | A kind of anti-low-temperature cracking prevention of mass concrete, which pours, uses constructing device |
| CN208277146U (en) * | 2018-03-16 | 2018-12-25 | 中冶东北建设（沈阳）工程技术有限公司 | A kind of dedicated concrete slab of Construction of Civil Engineering pours device |
| CN210031820U (en) * | 2019-04-18 | 2020-02-07 | 中铁十七局集团第三工程有限公司 | Concrete pouring device |
-
2019
- 2019-04-18 CN CN201910314030.2A patent/CN109914418A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2980242B1 (en) * | 1998-10-01 | 1999-11-22 | 西松建設株式会社 | Concrete placing method and concrete placing mechanism |
| CN205063359U (en) * | 2015-09-15 | 2016-03-02 | 李兆华 | Concrete evener that vibrates |
| CN206663469U (en) * | 2017-04-14 | 2017-11-24 | 宣鹏 | A kind of special concrete slab of Construction of Civil Engineering pours device |
| CN207659971U (en) * | 2017-12-19 | 2018-07-27 | 路港集团有限公司 | A kind of anti-low-temperature cracking prevention of mass concrete, which pours, uses constructing device |
| CN208277146U (en) * | 2018-03-16 | 2018-12-25 | 中冶东北建设（沈阳）工程技术有限公司 | A kind of dedicated concrete slab of Construction of Civil Engineering pours device |
| CN210031820U (en) * | 2019-04-18 | 2020-02-07 | 中铁十七局集团第三工程有限公司 | Concrete pouring device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576253A (en) * | 2020-05-20 | 2020-08-25 | 中铁六局集团有限公司 | Bridge deck pavement surface crack control method |
| CN112343056A (en) * | 2020-11-18 | 2021-02-09 | 杨玉庆 | Concrete pouring device for hydraulic engineering building and use method thereof |
| CN112832244A (en) * | 2021-01-12 | 2021-05-25 | 倪苏宁 | Concrete placement device for hydraulic engineering |
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