CN211313307U - Foldable scaffold arranged behind shield - Google Patents
Foldable scaffold arranged behind shield Download PDFInfo
- Publication number
- CN211313307U CN211313307U CN201921520744.0U CN201921520744U CN211313307U CN 211313307 U CN211313307 U CN 211313307U CN 201921520744 U CN201921520744 U CN 201921520744U CN 211313307 U CN211313307 U CN 211313307U
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- supporting
- shield
- support
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- rod
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Abstract
A foldable scaffold arranged behind a shield can solve the technical problems that the existing movable scaffold is established and a shield matched battery car passes through, and the efficiency is low. Comprises a support fixed on the top of a matched battery car; the bottom of the supporting upright rod is fixed on a support, and the support is connected with the supporting upright rod through a pin; the four supporting upright rods are respectively provided with a horizontal rod and a vertical horizontal rod to form a supporting frame; one symmetrical two side edges of the supporting frame are respectively and horizontally provided with an angle steel cantilever frame which is rod-shaped, and one end of the angle steel cantilever frame is connected with the top of the supporting vertical rod by a pin; one end of the steel pipe inclined strut is fixed on the support, and the other end of the steel pipe inclined strut is fixed in the middle of the angle steel cantilever frame; the angle steel outrigger is used for fixing the steel walkway plate, and the steel walkway plate is horizontally arranged. The utility model discloses can do 180 foldings to fix at the storage battery car top, along with adorning, possess lightly in a flexible way, simple to operate, advantage such as the structure is reliable.
Description
Technical Field
The utility model relates to a remove scaffold engineering technical field among the shield tunnel engineering, concretely relates to install in supporting collapsible scaffold behind the shield structure.
Background
During the construction of the shield method tunnel, the lining of the tunnel structure adopts prefabricated reinforced concrete segments. The molding section is in a circular or true circular section form, the bottom of the tunnel is a battery car running track, and sidewalk boards or various pipelines are generally arranged on two sides of the tunnel. And a large number of bolt holes and grouting holes are distributed along the radial direction and the annular direction of the tunnel. Is not beneficial to the erection of the scaffold and the operation platform. After the single-line tunnel segment is formed and before a hole is communicated, structural repair, secondary grouting, laying of various auxiliary pipelines and the like are required to be carried out inevitably. These operations require the construction of scaffolding or work platforms.
The existing tunnel construction has the following conditions: 1. the maintenance platform for the tunnel section can be erected by utilizing a steel pipe fastener scaffold, a bowl fastener scaffold, a socket type disc fastener support and the like. But the construction is carried out by consuming certain manpower and is provided with special protection. 2. The trackless walking full-section door type maintenance platform can meet the requirement of passing of a storage battery car, adopts a steel structure arrangement form, four groups of pulleys are arranged at the bottom, operation platforms are arranged on two sides, and construction tools can be placed at the top.
If the problem of the operation platform can be solved by adopting the common full hall scaffold, the installation and the dismantling are complicated, the structure is relatively complex, the horizontal movement cannot be realized, and the full hall scaffold cannot meet the passing condition of a matched train behind the shield, so that the shield tunneling construction is influenced. And the trackless walking full-face gate-type maintenance platform of the second condition, though can satisfy storage battery car current, nevertheless have the problem needs further solution of following three aspects: four groups of pulleys arranged at the bottom walk on a circular section, so that arc running is easily caused, the vertical rods are invaded into the running space of the battery car, and certain potential safety hazards exist. If the channel steel track is arranged, certain manpower and material resources are needed, and the economic applicability is not strong. Secondly, in order to ensure certain rigidity and stability, a large number of diagonal bracing members need to be additionally arranged, so that inconvenience is brought to installation and removal. Thirdly, the support needs to be pushed to a maintenance surface, and for a long-distance tunnel, the operation is inconvenient, and the effect is low.
SUMMERY OF THE UTILITY MODEL
The utility model provides an install supporting collapsible scaffold frame behind the shield structure can solve current mobile scaffold frame and set up and shield structure supporting battery car current contradiction, and the lower technical problem of efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a foldable scaffold arranged behind a shield and matched with the shield comprises a support, wherein the support is fixed to the top of a matched battery car;
the bottom of the supporting upright rod is fixed on a support, and the support and the supporting upright rod are connected through a pin and can be folded in a 180-degree rotating manner;
the number of the supporting upright posts is four, and the four supporting upright posts form a supporting frame by respectively arranging a transverse horizontal rod and a vertical horizontal rod;
one symmetrical two side edges of the supporting frame are respectively and horizontally provided with an angle steel cantilever frame which is rod-shaped, one end of the angle steel cantilever frame is connected with the top of the supporting upright rod by a pin and can be folded in a 180-degree rotating way;
the steel pipe inclined strut is fixed on the support at one end and fixed in the middle of the angle steel cantilever frame at the other end and used for supporting the angle steel cantilever frame;
the angle steel outrigger is used for fixing the steel walkway plate, and the steel walkway plate is horizontally arranged.
The steel pipe inclined strut is characterized by further comprising a limiting clamping groove, wherein the limiting clamping groove is fixed on the support, and one end of the bottom of the steel pipe inclined strut is fixed on the limiting clamping groove;
furthermore, the other end of the steel pipe inclined strut is provided with a pin lug at the bottom of the angle steel cantilever frame, and the top of the steel pipe inclined strut is connected with the pin lug by a pin.
Furthermore, safety handrails are arranged on two sides of the steel walkway plate.
Furthermore, the limiting clamping groove is welded on the support in a cross shape.
Furthermore, horizontal bolt is installed to steel pipe bracing bottom, inserts in the spacing draw-in groove to stabilize the scaffold frame.
Furthermore, each supporting upright rod is provided with two plate buckle connecting plates for fixing the transverse vertical horizontal rod to form a supporting frame.
Furthermore, double angle steel backrests are welded in the middle of the steel walkway plate, and the steel walkway plate is directly clamped into the angle steel outriggers to prevent the walkway plate from sliding.
Furthermore, the supporting vertical rod is a lifting vertical rod.
Further, the pin lug is a slidable pin lug.
According to the above technical scheme, the utility model discloses will through set up fixing support at the supporting storage battery roof portion of shield structure, utilize the fixed pole setting of support and bracing piece with supporting ingenious combination behind the strutting arrangement of support and the shield structure. When the temporary platform is not used, the main components can be fixed on the support in a folding mode, and when the temporary platform is used, the temporary platform can be paved and built after being unfolded. The problem of carrying the scaffold back and forth is solved, and the problem of the efficiency of repeatedly disassembling and assembling the scaffold is also solved. The frame body has simple structure and saves materials, and plays the roles of saving labor, time and materials.
The utility model discloses can install on the supporting train behind the different shield constructs the machine according to on-the-spot particular case to remove along with the storage battery car and arrive the arbitrary mileage in tunnel and construct. The main components and parts used are industrial universal equipment, and are convenient to damage, replace and maintain. The main keel, the angle steel cantilever frame, the supporting diagonal rod and the like can be folded by 180 degrees, are fixed at the top of the battery car and can be mounted at any time. Therefore, the utility model discloses possess lightly nimble, simple to operate, advantages such as structure is reliable.
Specific theory the utility model discloses a beneficial effect as follows:
by means of horizontal running of the shield rear matched storage battery car, horizontal repair of any mileage of the tunnel can be met, reciprocating carrying time of the support component is saved, and operation efficiency is improved.
The components are light and convenient, and the rotation and folding of the main stress rod piece are realized by utilizing the mechanical pin connection and hinge joint principle and reasonable combination. When not in use, the utility model can be contracted and fixed on the top of the back matching part, and when in use, the utility model can be directly unfolded for operation. The scaffold setting time is not more than 20 minutes, so that the time is saved, and the working efficiency is improved.
And all the loads are transmitted to the support by utilizing the horizontal angle steel cantilever frame, the steel pipe inclined strut and the supporting upright rod. The four upright poles are combined through a disc buckle connecting disc and a connecting pin arranged on the horizontal pole. Ensuring the formation of a frame stress system. The overall stability of the bracket is improved, and the safety performance is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
figure 2 is a schematic illustration of the pin connection of the support uprights and the supports of the present embodiment;
FIG. 3 is a schematic structural diagram of a limiting slot in the present embodiment;
FIG. 4 is a schematic view of an alternative embodiment of the steel tube diagonal bracing of the present invention;
FIG. 5 is a schematic view of an alternative embodiment of the present invention pin lug;
figure 6 is a schematic view of an alternative supporting pole of the present invention;
fig. 7 and 8 show two application scenarios of the present embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
As shown in fig. 1, the foldable scaffold installed behind the shield according to this embodiment includes: the whole support of the embodiment consists of three parts, namely a support, a support rod piece and a paving plate.
The method specifically comprises the following steps: including support 1, support 1 welded fastening is at the supporting storage battery car top behind the shield constructs the machine for fixed scaffold prevents its lateral shifting.
The foldable support is characterized by further comprising a supporting vertical rod 3, the bottom of the supporting vertical rod 3 is fixed on the support 1, and the support 1 and the supporting vertical rod 3 are connected through a pin (shown in figure 2) and can be folded in a 180-degree rotating mode; the supporting upright rods 3 are used for bearing the load of the scaffold and the self-weight load of the upper member.
The number of the supporting upright stanchions 3 is four, and the four supporting upright stanchions 3 form a supporting frame by respectively arranging a transverse horizontal rod 5 and a vertical horizontal rod 4; each supporting upright rod 3 is provided with two plate buckle connecting plates 6 for fixing the horizontal and vertical horizontal rods to form a supporting frame; the disk buckle connecting disk 6 is welded on the vertical rod and can be buckled with the circular hole plate of the buckle joints in 8 directions.
The length of the vertical horizontal rod 4 is 1.2m, and the two ends of the vertical horizontal rod are welded with buckle joints and are connected with the vertical rod through a coil buckle connecting disc 6; the length of the transverse horizontal rod 5 is 1.5m, and the two ends of the transverse horizontal rod are welded with buckle joints and are connected with the vertical rod through a disc buckle connecting disc 6; two symmetrical side edges of one of the supporting frames are respectively and horizontally provided with an angle steel cantilever frame 7, the angle steel cantilever frame 7 is in a rod shape, one end of the angle steel cantilever frame 7 is connected with the top of the supporting upright rod 3 by a pin, and the angle steel cantilever frame can be folded in a 180-degree rotating way; the angle steel cantilever 7 is connected with the top of the upright rod by a pin, and is used for supporting the upright rod and the inclined rod for load transmission.
The steel pipe inclined strut 9 is further included, one end of the steel pipe inclined strut 9 is fixed on the support 1, and the other end of the steel pipe inclined strut 9 is fixed in the middle of the angle steel cantilever 7 and used for supporting the angle steel cantilever 7; the angle steel scaffold 7 is used for fixing the steel walkway plate 10, and the steel walkway plate 10 is horizontally arranged. Horizontal bolt is installed to 9 bottoms of steel pipe bracing, can insert in spacing draw-in groove 2 to stabilize the scaffold frame.
Still include spacing draw-in groove 2, spacing draw-in groove 2 is "cross" welding on support 1, and the one end of steel pipe bracing 9 bottom is fixed at spacing draw-in groove 2, and the fixed steel pipe bracing 9 bottom degree of freedom of spacing draw-in groove 2 bears the vertical power and the level of bracing transmission to power (as shown in fig. 3).
The other end of the steel pipe inclined strut 9 is provided with a pin lug 8 at the bottom of the angle steel cantilever frame, and the top of the steel pipe inclined strut 9 is connected with the pin lug 8 by a pin. The pin lug 8 is welded at the bottom of the angle steel cantilever frame and is connected with the top of the steel pipe inclined strut by a pin.
The middle of the steel walkway plate 10 is welded by a double-angle steel backrest, and the steel walkway plate is directly clamped into the angle steel outrigger 7 to prevent the walkway plate from sliding.
Meanwhile, as shown in fig. 2, the steel pipe inclined strut in the scheme can be replaced by a hydraulic oil cylinder or an electric cylinder in the embodiment.
As shown in fig. 3, a slidable pin lug is adopted to replace a fixed pin lug in the invention, and a guide rail and a limiting plate are arranged at the bottom of the angle iron cantilever frame. Realize the lifting and descending of the automatic control angle steel outrigger.
As shown in fig. 4, the supporting upright rod 3 is also modified into a primary-secondary rod (the primary rod is arranged at the lower part, and the secondary rod is arranged at the upper part), so that the upright rod can be lifted. The top of the female rod is additionally provided with a connecting sleeve, the bottom of the secondary rod is provided with a spring pin or a mechanical pin, and the total length of the vertical rod is increased and decreased through the change of the position of the pin.
The using process of the embodiment is as follows:
before installation, the effective clearance is determined by calculation according to different tunnel sections and different types of shield machines and the back matching, so that the length of the vertical rod is determined. And welding the support and the limiting clamping groove at the top of the mounting surface. Any mileage of the tunnel can be reached by means of horizontal movement of the rail battery car, and the idle time of the battery car is fully utilized to carry out structural repair operation and other construction operations of the inverted arch of the tunnel.
The scaffold is used for the first time, the supporting vertical rod is fixed on a welded support through pin connection, the vertical horizontal rod and the horizontal rod are connected with the supporting vertical rod through socket type disc buckles, the top of the steel pipe diagonal brace is connected with a pin lug through a pin, and a horizontal bolt is installed at the bottom of the steel pipe diagonal brace and can be inserted into a limiting clamping groove to stabilize the scaffold. And then, paving a steel walkway plate of the operation platform according to needs, and carrying out manned operation.
When the scaffold is folded, the scaffold supporting upright rods, the angle steel brackets, the steel pipe inclined struts and other members are connected by pins, so that 180-degree rotation folding can be realized. If existing obstacles in the tunnel are met, the steel walkway plates can be firstly removed, then the supporting upright rods, the angle steel brackets, the steel pipe inclined struts and other members are sequentially folded and overlapped, and the steel walkway plates are temporarily fixed on the support. To be deployed after passing through the obstacle. Sequentially processing by the same method.
The following are a few examples of applications:
firstly, as shown in fig. 5, the scaffold system of the embodiment is integrally fixed on the top of the battery car for inverted arch working surface construction. People do not stand at the top in the driving process of the battery car. In the tunneling process of the shield tunneling machine, a matched storage battery car runs to and fro to transport the muck and the duct pieces. Construction operation can be carried out only by utilizing idle time of the battery car.
Secondly, as shown in fig. 6, the scaffold system is integrally fixed at the top of a residue soil box matched with the battery car, and parking construction is realized through vehicle marshalling.
To sum up, the supporting collapsible scaffold frame of installing behind the shield of this embodiment is a light reliable, the dismouting of being convenient for, stable in structure, and possesses the scaffold frame that removes the function. The utility model discloses a support is buckled to socket joint type dish is the main joist, with supporting ingenious combination behind strutting arrangement of support and the shield structure, utilizes fixed pole setting of support and bracing piece. The problem that the matched storage battery car is in a pass state is solved, and the problem of the effect of repeatedly disassembling and assembling the scaffold is also solved.
The beneficial effects of this embodiment are specifically as follows:
1. the installation and the disassembly are convenient, and the time is saved.
The support vertical rod is fixed on the welded support through pin connection, the vertical horizontal rod and the horizontal rod are connected with the support vertical rod through socket type disc buckles, the top of the steel pipe diagonal brace is connected with a pin lug through a pin, and a horizontal bolt is installed at the bottom of the steel pipe diagonal brace and can be inserted into a limiting clamping groove to stabilize the scaffold.
2. The tunnel is provided with a moving function, and construction of an inverted arch section with any mileage in the tunnel is realized.
And determining the effective clearance by calculation according to the rear matching of shield machines with different tunnel sections and different models. Thereby determining the length of the vertical rod. The scaffold is installed at the top of the shield, any mileage of the tunnel can be reached by means of horizontal movement of the rail storage battery car, and the idle time of the storage battery car is fully utilized to carry out structural repair operation and other construction operations.
3. Effectively avoid tunnel barrier.
The components such as the scaffold supporting upright rod, the angle steel bracket, the steel pipe inclined strut and the like are connected by pins, and 180-degree rotary folding can be realized. If the existing obstacles in the tunnel are met, the tunnel can be folded in advance and then unfolded after passing through.
4. The structure is safe and reliable.
The parameters of the main components selected in the embodiment are as follows:
the maximum allowable axial stress [ sigma ] of the diagonal brace is 335Mpa, the vertical concentrated load N which is Nmax Xcos45 degrees is larger than or equal to A [ sigma ] which is 424X10-6m2X335Mpa is 142KN, and N which is smaller than or equal to 203KN is 2T.
The pin (M16) resists shear forces, T335 pi 0.082 1000 6732KN 66T.
The allowable bearing capacity of a single upright post of the coiling buckle (DN60) is 9.5 tons (the safety factor is 2), and the breaking load is 19 tons.
Then the utility model discloses a mounting system allows the bearing capacity to be 1 ton (factor of safety is 2), and the destruction load is 2 tons.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides an install supporting collapsible scaffold frame behind shield, includes support (1), its characterized in that:
the support (1) is fixed on the top of the matched battery car;
the bottom of the supporting upright rod (3) is fixed on the support (1), and the support (1) and the supporting upright rod (3) are connected through a pin and can be folded in a 180-degree rotating manner;
the number of the supporting upright stanchions (3) is four, and the four supporting upright stanchions (3) form a supporting frame by respectively arranging a transverse horizontal rod (5) and a vertical horizontal rod (4);
two symmetrical side edges of one of the supporting frames are respectively and horizontally provided with an angle steel cantilever frame (7), the angle steel cantilever frame (7) is rod-shaped, one end of the angle steel cantilever frame (7) is connected with the top of the supporting upright rod (3) by a pin and can be folded in a 180-degree rotating way, and the other end of the angle steel cantilever frame (7) extends towards the direction opposite to the supporting frame;
the steel pipe inclined strut is characterized by further comprising a steel pipe inclined strut (9), wherein one end of the steel pipe inclined strut (9) is fixed on the support (1), and the other end of the steel pipe inclined strut is fixed in the middle of the angle steel cantilever frame (7) and used for supporting the angle steel cantilever frame (7);
the angle steel scaffold (7) is used for fixing the steel walkway plate (10), and the steel walkway plate (10) is horizontally arranged.
2. The matched foldable scaffold arranged behind the shield as claimed in claim 1, wherein:
the steel pipe support is characterized by further comprising a limiting clamping groove (2), wherein the limiting clamping groove (2) is fixed on the support (1), and one end of the bottom of the steel pipe inclined strut (9) is fixed on the limiting clamping groove (2);
the other end of the steel pipe inclined strut (9) is provided with a pin lug (8) at the bottom of the angle steel cantilever frame, and the top of the steel pipe inclined strut (9) is connected with the pin lug (8) by a pin.
3. The matched foldable scaffold arranged behind the shield as claimed in claim 1, wherein: safety handrails (11) are arranged on two sides of the steel walkway plate (10).
4. The matched foldable scaffold arranged behind the shield as claimed in claim 2, wherein: the limiting clamping groove (2) is welded on the support (1) in a cross shape.
5. The matched foldable scaffold arranged behind the shield as claimed in claim 2, wherein: the bottom of the steel pipe inclined strut (9) is provided with a horizontal bolt which is inserted into the limiting clamping groove (2) to stabilize the scaffold.
6. The matched foldable scaffold arranged behind the shield as claimed in claim 1, wherein: the length of the horizontal rod (5) is 1.5m, and the length of the vertical horizontal rod (4) is 1.2 m.
7. The matched foldable scaffold arranged behind the shield as claimed in claim 1, wherein: and each supporting upright rod (3) is provided with two plate buckle connecting plates (6) for fixing the transverse vertical horizontal rod to form a supporting frame.
8. The matched foldable scaffold arranged behind the shield as claimed in claim 1, wherein: the middle of the steel walkway plate (10) is welded by a double-angle steel backrest, and the steel walkway plate is directly clamped into an angle steel cantilever frame (7) to prevent the walkway plate from sliding.
9. The matched foldable scaffold arranged behind the shield as claimed in claim 1, wherein: the supporting upright stanchion (3) is a lifting upright stanchion.
10. The matched foldable scaffold arranged behind the shield as claimed in claim 2, wherein: the pin lug (8) is a slidable pin lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921520744.0U CN211313307U (en) | 2019-09-12 | 2019-09-12 | Foldable scaffold arranged behind shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921520744.0U CN211313307U (en) | 2019-09-12 | 2019-09-12 | Foldable scaffold arranged behind shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211313307U true CN211313307U (en) | 2020-08-21 |
Family
ID=72056954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921520744.0U Expired - Fee Related CN211313307U (en) | 2019-09-12 | 2019-09-12 | Foldable scaffold arranged behind shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211313307U (en) |
-
2019
- 2019-09-12 CN CN201921520744.0U patent/CN211313307U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200821 Termination date: 20210912 |
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| CF01 | Termination of patent right due to non-payment of annual fee |