CN207633224U - A kind of collapsible box girder inner formwork - Google Patents
A kind of collapsible box girder inner formwork Download PDFInfo
- Publication number
- CN207633224U CN207633224U CN201721732097.0U CN201721732097U CN207633224U CN 207633224 U CN207633224 U CN 207633224U CN 201721732097 U CN201721732097 U CN 201721732097U CN 207633224 U CN207633224 U CN 207633224U
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- panel
- support bar
- group
- box girder
- inner formwork
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Abstract
The utility model provides a kind of collapsible box girder inner formwork,The side form being oppositely arranged including two,Each side form includes the multiple mould bases being arranged side by side along the extending direction of side form,Multiple hinges and multigroup support braces group,And first panel,Second panel,Support bar group and pull rod,Each mould bases includes upper frame and lower frame,First panel is wrapped on multiple upper frames,Second panel is wrapped on multiple lower frames,Support bar group includes and first panel,The support bar and and second panel of multiple upper frame connections,The lower support bar of multiple lower frame connections,Each hinge respectively with support bar,Lower support bar connection,Each group of support braces group includes first end and the hinged upper support braces of first panel and first end and the hinged lower support braces of second panel,Pull rod is hinged with the second end of the second end of upper support braces and lower support braces respectively.The collapsible box girder inner formwork has the advantages that simple in structure, connection is reliable, convenient disassembly and removal efficiency are high.
Description
Technical field
The utility model is related to technical field of bridge construction, specifically, being to be related to a kind of collapsible box girder inner formwork.
Background technology
Box beam is chiefly used in the engineerings such as road and bridge, and traditional Construction of Precast Box Beam mainly passes through rubber internal model, rigid bone
Three kinds of forms such as frame assembled plank sheathing and combined steel internal model, wherein when rubber internal model is installed, directly inflate, in capsule
Brush releasing agent can be installed in place on external mold；Rigid backbone assembled plank sheathing uses plank i.e. using angle steel as rigid backbone
It is assembled, shape is determined by stiff skeleton substantially, and installation can be processed in strict accordance with design size；Combined steel internal model
Shaped steel, steel form is used to be process, is bolted as an entirety, it can be segmented or whole after assembled qualification
Lifting is in place.
But the internal model of above-mentioned box girder construction has the following disadvantages：The geometry of rubber internal model construction technology box beam inner cavity
Shape by rubber mandrel be molded, the negative effect by work progress is larger, geometric dimension be difficult control, under normal circumstances with design
Geometry difference it is larger, and the form removal period is longer, and external capsule is fragile in demolishing process.Rigid backbone assembled plank sheathing is applied
Work technique needs that stiff skeleton angle steel is manually carried out whole dismountings or partial demolition in internal model, then again in form removable
Remove plank, and need to prevent to the uninterrupted air blast in box beam inner cavity using air blower during form removal worker because in box beam space it is narrow
It is small, and lead to anoxia asphyxia, therefore the system template needs repeatability to remove, is assembled, workload is larger, and plank during use
Being soaked in water by cement mortar, maintenance, it is fragile to be influenced.And combined steel internal model construction technology template although have it is enough rigid
Degree, but equally need manually to be removed connection bolt in internal model when form removal, inner membrance then is removed in piecemeal, during form removal
Same worker's operation intensity is big, and the duration is longer, need to equally use wind turbine to drying inside box beam, prevent worker's anoxic from stopping up
Breath.As it can be seen that traditional handicraft has certain limitation, and especially in high-volume prefabricated box -beam work progress, limitation bigger, this
Outside, there is also difficult, the dismounting disadvantage that efficiency is low and removal step is cumbersome is removed after construction for existing internal model.
Invention content
To solve the above-mentioned problems, the main purpose of the utility model be to provide it is a kind of it is simple in structure, connection is reliable, dismounting
Convenient and high removal efficiency collapsible box girder inner formwork.
In order to realize that the main purpose of the utility model, the utility model are supplied to a kind of collapsible box girder inner formwork, wherein
The side form being oppositely arranged including two, each side form includes multiple mould bases, first panel, second panel, support bar group, multiple
Hinge, multigroup support braces group and pull rod, multiple mould bases are arranged side by side along the extending direction of side form, each mould bases includes upper
Frame and lower frame, first panel are wrapped on the upper frame of multiple mould bases, and second panel is wrapped in the lower frame of multiple mould bases
On, support bar group is located at the junction of multiple upper frames and multiple lower frames, and support bar group includes support bar and lower support bar,
Support bar is connect with first panel, multiple upper frames respectively, and lower support bar is connect with second panel, multiple lower frames respectively,
Multiple hinges are arranged side by side along the extending direction of side form, and each hinge is connect with support bar, lower support bar respectively, more
Group support braces group is arranged side by side along the extending direction of side form, and each group of support braces group includes upper support braces and lower support
Tie rod, the first end and first panel of upper support braces are hinged, and the first end and second panel of lower support braces are hinged, pull rod edge
The extending direction of side form extends ground setting, pull rod respectively with the second end and the group of the upper support braces of each group of support braces group
Lower support braces second end it is hinged.
Further embodiment is that collapsible box girder inner formwork further includes that multiple first fixing devices and multiple second fix dress
It sets, multiple first fixing devices are arranged side by side along the extending direction of side form, each first fixing device is both connected to two
Between the first panel of side form, multiple second fixing devices are arranged side by side along the extending direction of side form, each second fixation
Device is both connected between the second panel of two side forms.
Further scheme is that each first fixing device includes the first connecting seat, the first fixed seat, the first connection
Bar and the first hinged shaft, the first connecting seat are connect with the first panel of first side form, and the of the first fixed seat and second side form
One panel connects, and the first end of head rod is hinged by the first hinged shaft and the first connecting seat, the second end of head rod
It can rotate and be fastened in the first fixed seat around the first hinged shaft, each second fixing device is consolidated including the second connecting seat, second
Reservation, the second connecting rod and the second hinged shaft, the second connecting seat are connect with the second panel of first side form, the second fixed seat and the
The first end of the second panel connection of two side forms, the second connecting rod is hinged by the second hinged shaft and the first connecting seat, and second connects
The second end of extension bar can be rotated around the second hinged shaft and is fastened in the second fixed seat.
Further scheme is that pull rod is provided with draw ring, and draw ring is located at the end of pull rod.
Further scheme is, upper frame is being provided with the first groove close to one end of support bar group, lower frame by
One end of nearly support bar group is provided with the second groove, and the first groove and the second groove are oppositely disposed.
Further scheme is to be connected with support rod between adjacent two lower frames.
Further scheme is, support bar and lower support bar are made of channel steel or support bar and lower support
Item is made of square steel.
Further scheme is that pull rod is made of channel steel.
Further scheme is that upper frame and lower frame are made of band steel.
Further scheme is that upper support braces and lower support braces are made of band steel.
Therefore the upper frame of multiple mould bases of each side form and lower frame are carried out by support bar group, hinge
Connection so that the upper frame and lower frame of mould bases can be relatively rotated by hinge, and then be realized to upper frame and lower frame
Frame is folded so that the dismounting of internal model after box girder webs is simpler, conveniently.And branch is set between upper frame and lower frame
Stay group so that the support bar of support bar group and lower support bar can ensure when mould bases is in unfolded state, and shape is unfolded
State is more stablized.Support braces group is set between first panel and second panel so that support braces group can be to being unfolded shape
The upper frame and lower frame of state provide a supporting role, avoid collapsible box girder inner formwork when in use, upper frame and lower frame exist
It is folded under the pressure-driven of concrete.In addition, setting pull rod, and pull rod and the upper support of each group of support braces group are drawn
The second end of the second end of item and lower support braces is hinged so that when being dismantled to collapsible box girder inner formwork, need to only pass through
Pull rod, the upper dead-centre position between support braces and lower support braces of releasings, then releasing is pulled to go up the exhibition of frame and lower frame
Open state, and pull upper frame and lower frame to be folded by upper support braces and lower support braces, it completes to folding box
The dismounting of beam internal model, and in the end set draw ring of pull rod so that draw ring can connect external equipment or pulling mechanism to pull rod
It is drawn, improves the removal efficiency of collapsible box girder inner formwork.The side form that fixing device can be oppositely arranged two is consolidated
Fixed, avoiding collapsible box girder inner formwork, opposite sliding occurs for two side forms when in use, and then ensure that the making precision of box beam.It can
See, with passing through setting to collapsible box girder inner formwork and structure design so that the collapsible box girder inner formwork has simple in structure, even
Connect reliable, convenient disassembly and the high advantage of removal efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram of the collapsible box girder inner formwork first embodiment of the utility model.
Fig. 2 is the structural schematic diagram under another visual angle of the collapsible box girder inner formwork first embodiment of the utility model.
Fig. 3 is the structural schematic diagram of the collapsible box girder inner formwork second embodiment of the utility model.
The utility model is described in further detail with reference to the accompanying drawings and embodiments.
Specific implementation mode
Collapsible box girder inner formwork first embodiment：
Referring to Figures 1 and 2, collapsible box girder inner formwork 100 includes two side forms 1 being oppositely arranged, each side form 1 includes
Multiple mould bases 2, first panel 3, second panel 30, support bar group 4, multiple hinges 5, multigroup support braces group 6, pull rod 7, first
Fixing device 8 and the second fixing device 9.
Wherein, multiple mould bases 2 are arranged side by side along the extending direction of side form 1, also, each mould bases 2 includes upper frame
21 and lower frame 22, upper frame 21 and lower frame 22 be rotatably coupled.
Specifically, first panel 3 is wrapped on the upper frame 21 of multiple mould bases 2, forms the of collapsible box girder inner formwork 100
One outer wall；Second panel 30 includes forming the second outer wall of collapsible box girder inner formwork 100 on the lower frame 22 of multiple mould bases 2.
Support bar group 4 is located at the junction of multiple upper frames 21 and multiple lower frames 22, and support bar group 4 includes support bar 41 and lower branch
Stay 42, and support bar 41 and lower support bar 42 are arranged along the extending direction of side form 1 with extending.In addition, support bar 41
It is connect respectively with multiple upper frames 21 of first panel 3, the mould bases 2 of side form 1,42 decibels of lower support bar and second panel 30, side
Multiple lower frames 22 of the mould bases 2 of mould 1 connect.
Multiple hinges 5 are arranged side by side along the extending direction of side form 1, and each hinge 5 is upper with support bar group 4 respectively
Support bar 41 and the connection of lower support bar 42.As it can be seen that the upper frame 21 of multiple mould bases 2 of each side form 1 and lower frame 22 are led to
Cross support bar group 4, hinge 5 is attached so that the upper frame 21 and lower frame 22 of mould bases 2 can be carried out relatively by hinge 5
Rotation, and then realize and upper frame 21 and lower frame 22 are folded so that the collapsible box girder inner formwork 100 after box girder webs is torn open
It unloads simpler, conveniently.And support bar group 4 is set between upper frame 21 and lower frame 22 so that the upper support of support bar group 4
Item 41 and lower support bar 42 can ensure that when mould bases 2 is in unfolded state, unfolded state is more stablized.
In addition, upper frame 21 is being provided with the first groove 61 close to one end of support bar group 6, lower frame 22 is close to support
One end of item group 6 is provided with the second groove 62, and the first groove 61 and the second groove 62 are oppositely disposed.Preferred scheme, phase
It is connected with support rod between adjacent two lower frames 22, and then improves the overall stability of side form 1.It is another Preferable scheme is that, on
Frame 21 and lower frame 22 are made of band steel；First panel 3 and second panel 30 have steel to be made.Another preferred scheme
It is that support bar 41 and lower support bar 42 have channel steel to be made so that when side form 1 is in unfolded state, 41 He of support bar
There is larger contact surface between lower support bar 42, and then preferable supporting-point is provided for upper frame 21 and lower frame 22, to subtract
The pulling force that small hinge 5 is born when being unfolded.
Multigroup support braces group 6 is arranged side by side along the extending direction of side form 1, and each group of support braces group 6 includes upper
Support braces 61 and lower support braces 42, the first ends of upper support braces 61 is hinged with first panel 3, and the of lower support braces 42
One end is hinged with second panel 30.Pull rod 7 along side form 1 extending direction love extend be arranged, and pull rod 7 respectively with each group of branch
The second end for supportting the second end of the upper support braces 61 of tie rod group 6 and the lower support braces 62 of the group is hinged.As it can be seen that in the first face
Support braces group 6 is set between plate 3 and second panel 30 so that support braces group 6 can be to 21 He of upper frame of unfolded state
Lower frame 22 provides a supporting role, avoid collapsible box girder inner formwork 100 when in use, upper frame 21 and lower frame 22 are in coagulation
It is folded under the pressure-driven of soil.In addition, setting pull rod 7, and pull rod 7 and the upper support of each group of support braces group 6 are drawn
The second end of the second end of item 61 and lower support braces 62 is hinged so that when being dismantled to collapsible box girder inner formwork 100, only
It need to be by pulling pull rod 7, the upper dead-centre position between support braces 61 and lower support braces 62 of releasings, then releasing to go up frame 21
With the unfolded state of lower frame 22, and by upper support braces 61 and lower support braces 62 pull upper frame 21 and lower frame 22 into
Row folds, and completes the fast quick-detach to collapsible box girder inner formwork 100.
Preferable scheme is that pull rod 7 is provided with draw ring 71, draw ring 71 is located at the end of pull rod 7, is set in the end of pull rod 7
Set draw ring 71 so that draw ring 71 can connect external equipment or pulling mechanism and be drawn to pull rod 41, improve collapsible box beam
The removal efficiency of internal model 100.It is another Preferable scheme is that, pull rod 7 has channel steel to be made.Further Preferable scheme is that, upper support is drawn
Item 61 and lower support braces 62 are made of band steel.
Multiple first fixing devices 8 are arranged side by side along the extending direction of side form 1, and each first fixing device 8 is
It is connected between the first panel 3 of two side forms 1.Multiple second fixing devices 9 are arranged side by side along the extending direction of side form 1,
And each second fixing device 9 is both connected between the second panel 30 of two side forms 1.
Specifically, each first fixing device 8 includes the first connecting seat 81, the first fixed seat 82, head rod 83
With the first hinged shaft 84, the first connecting seat 81 is connect with the first panel 3 of first side form 1, the first fixed seat 82 and second side
The first panel 3 of mould 1 connects, and the first end of head rod 83 is hinged by the first hinged shaft 84 and the first connecting seat 81, and the
The second end of one connecting rod 83 can be rotated around the first hinged shaft 84 and is fastened in the first fixed seat 82.
Each second fixing device 9 includes the second connecting seat 91, the second fixed seat 92, the second connecting rod 93 and second hinge
Axis 94, the second connecting seat 91 are connect with the second panel 30 of first side form 1, and the of the second fixed seat 92 and second side form 1
Two panels 30 connect, and the first end of the second connecting rod 93 is hinged by the second hinged shaft 94 and the second connecting seat 91, and the second connection
The second end of bar 93 can be rotated around the second hinged shaft 94 and is fastened in the first fixed seat 92.First fixing device 8 and second is fixed
Two side forms being oppositely arranged 1 can be fixed in device 9, avoid two side forms 1 when in use of collapsible box girder inner formwork 100
Opposite sliding occurs, and then ensure that the making precision of box beam.
Collapsible box girder inner formwork second embodiment：
As shown in figure 3, using the inventive concept of collapsible box girder inner formwork first embodiment, collapsible box girder inner formwork second is real
Example and first embodiment are applied the difference is that the support bar of support bar group 40 and lower support bar are made of square steel.
When needing to carry out pouring construction to box beam, the mould bases 2 of two side forms 1 is unfolded respectively, and pushing drawing rod 7, is made
Support bar 61 and the rotation of lower support bar 62 that pull rod 7 drives support braces group 6 are obtained, when the upper frame 21 and lower frame of mould bases 2
22 when being fully deployed, and support bar 61 and lower support bar 62 are located along the same line, i.e. dead-centre position, at this point, support bar 61
Multiple upper frames 21 and lower frame 22 are supported with lower support bar 62.Then, by the head rod of the first fixing device 8
83 are fastened in the first fixed seat 82, the second connecting rod 93 of the second fixing device 9 are fastened in the second fixed seat 92, in turn
Two side forms 1 are fixed.Then box beam is poured after completing the installation of other molds.
When box girder webs are completed and need to dismantle collapsible box girder inner formwork 100, the first fixing device 8 is first released
Head rod 83 and the first fixed seat 82 fastening, and release the second fixing device 9 the second connecting rod 93 and second
The fastening of fixed seat 92.Then, the pull rod 7 of two side forms 1 is pulled respectively so that pull rod 7 drags the upper support of support braces group 6
Tie rod 61 and lower support braces 62 are rotated, so that upper support braces 61 pull the upper rotation of frame 21, lower support braces
62 pull lower frame 22 to rotate so that multiple mould bases 2 of side form 1 are folded.Finally, by two side forms 1 respectively from pouring
Box beam in take out dismounting to collapsible box girder inner formwork can be completed.
By said program as it can be seen that the utility model passes through setting to collapsible box girder inner formwork and structure design so that should
Collapsible box girder inner formwork has the advantages that simple in structure, connection is reliable, convenient disassembly and removal efficiency are high.
Finally it is emphasized that the above is only the preferred embodiment of the present invention, it is not limited to this reality
With novel, for those skilled in the art, the utility model can have various change and change, all in the utility model
Spirit and principle within, any modification, equivalent substitution, improvement and etc. done should be included in the protection model of the utility model
Within enclosing.
Claims (10)
1. a kind of collapsible box girder inner formwork, which is characterized in that including：
Two side forms being oppositely arranged, each described side form include：
Multiple mould bases, multiple mould bases are arranged side by side along the extending direction of the side form, each described mould bases includes upper
Frame and lower frame；
First panel, the first panel are wrapped on the upper frame of multiple mould bases；
Second panel, the second panel are wrapped on the lower frame of multiple mould bases；
Support bar group, the support bar group are located at the junction of the multiple upper frames and multiple lower frames, the support
Item group includes support bar and lower support bar, and the support bar is connect with the first panel, multiple upper frames respectively,
The lower support bar is connect with the second panel, multiple lower frames respectively；
Multiple hinges, multiple hinges are arranged side by side along the extending direction of the side form, and each hinge respectively with institute
State support bar, the lower support bar connection；
Multigroup support braces group, multigroup support braces group are arranged side by side along the extending direction of the side form, each group of institute
It includes upper support braces and lower support braces to state support braces group, and first end and the first panel of the upper support braces are cut with scissors
It connects, the first end and the second panel of the lower support braces are hinged；
Pull rod, the pull rod along the side form extending direction extend be arranged, the pull rod respectively with each group of support braces
The second end of the second end of the upper support braces of group and the lower support braces of the group is hinged.
2. collapsible box girder inner formwork according to claim 1, it is characterised in that：
The collapsible box girder inner formwork further includes：
Multiple first fixing devices, multiple first fixing devices are arranged side by side along the extending direction of the side form, each
A first fixing device is both connected between the first panel of two side forms；
Multiple second fixing devices, multiple second fixing devices are arranged side by side along the extending direction of the side form, each
A second fixing device is both connected between the second panel of two side forms.
3. collapsible box girder inner formwork according to claim 2, it is characterised in that：
Each described first fixing device includes the first connecting seat, the first fixed seat, head rod and the first hinged shaft, described
First connecting seat is connect with the first panel of first side form, first fixed seat and second side form
The first end of the first panel connection, the head rod is hinged by first hinged shaft and first connecting seat,
The second end of the head rod can be rotated around first hinged shaft and is fastened in first fixed seat；
Each described second fixing device includes the second connecting seat, the second fixed seat, the second connecting rod and the second hinged shaft, described
Second connecting seat is connect with the second panel of first side form, second fixed seat and second side form
The first end of the second panel connection, second connecting rod is hinged by second hinged shaft and second connecting seat,
The second end of second connecting rod can be rotated around second hinged shaft and is fastened in second fixed seat.
4. collapsible box girder inner formwork according to claim 3, it is characterised in that：
The pull rod is provided with draw ring, and the draw ring is located at the end of the pull rod.
5. collapsible box girder inner formwork according to claim 4, it is characterised in that：
The upper frame is being provided with the first groove close to one end of the support bar group, and the lower frame is close to the support
One end of item group is provided with the second groove, and first groove and second groove are oppositely disposed.
6. collapsible box girder inner formwork according to any one of claims 1 to 5, it is characterised in that：
It is connected with support rod between two adjacent lower frames.
7. collapsible box girder inner formwork according to claim 6, it is characterised in that：
The support bar and the lower support bar are made of channel steel；Or
The support bar and the lower support bar are made of square steel.
8. collapsible box girder inner formwork according to claim 7, it is characterised in that：
The pull rod is made of channel steel.
9. collapsible box girder inner formwork according to claim 8, it is characterised in that：
The upper frame and the lower frame are made of band steel.
10. collapsible box girder inner formwork according to claim 9, it is characterised in that：
The upper support braces and the lower support braces are made of band steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732097.0U CN207633224U (en) | 2017-12-11 | 2017-12-11 | A kind of collapsible box girder inner formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732097.0U CN207633224U (en) | 2017-12-11 | 2017-12-11 | A kind of collapsible box girder inner formwork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207633224U true CN207633224U (en) | 2018-07-20 |
Family
ID=62862744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721732097.0U Expired - Fee Related CN207633224U (en) | 2017-12-11 | 2017-12-11 | A kind of collapsible box girder inner formwork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207633224U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726406A (en) * | 2020-12-25 | 2021-04-30 | 中铁广州工程局集团有限公司 | Integrally-drawing type box girder internal mold and using method thereof |
| CN113319986A (en) * | 2021-06-07 | 2021-08-31 | 河南七建工程集团有限公司 | Assembled prefabricated box girder inner mold and core-pulling method construction method thereof |
-
2017
- 2017-12-11 CN CN201721732097.0U patent/CN207633224U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726406A (en) * | 2020-12-25 | 2021-04-30 | 中铁广州工程局集团有限公司 | Integrally-drawing type box girder internal mold and using method thereof |
| CN113319986A (en) * | 2021-06-07 | 2021-08-31 | 河南七建工程集团有限公司 | Assembled prefabricated box girder inner mold and core-pulling method construction method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180720 Termination date: 20211211 |