CN204919318U - Modulus formula telescoping device - Google Patents
Modulus formula telescoping device Download PDFInfo
- Publication number
- CN204919318U CN204919318U CN201520373724.0U CN201520373724U CN204919318U CN 204919318 U CN204919318 U CN 204919318U CN 201520373724 U CN201520373724 U CN 201520373724U CN 204919318 U CN204919318 U CN 204919318U
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- controlling box
- displacement control
- displacement
- displacement controlling
- crossbeam
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Abstract
The utility model discloses a modulus formula telescoping device, including displacement control case, dowel, boundary beam, zhong liang, crossbeam and gallows, the displacement control case be hollow cuboid structure, the dowel respectively the symmetry arrange uniformly on the both sides limit of displacement control box, the boundary beam install the both sides limit at displacement control box upper surface respectively, well roof beam install at the intermediate position of displacement control box upper surface respectively and lie in between two boundary beams, the crossbeam transversely install in the opening of tip before the displacement control box, the gallows install at the preceding tip of displacement control box respectively and be connected with the displacement control case is perpendicular. In this way, the utility model provides a modulus formula telescoping device, the sound construction, long service life, safety when both having guaranteed the atress simultaneously, it is even to reach the displacement again, has reduced crossbeam quantity, makes displacement control case bulk reduction to minimum scope, has practiced thrift steel.
Description
Technical field
The utility model relate to bridge member etc. field, particularly relate to a kind of modular expansion device.
Background technology
Along with the height of temperature changes, because the principle of expanding with heat and contract with cold, the length of bridge also can change thereupon, thus causes bridge end to produce displacement, smooth-going in order to ensure driving, must arrange bridge expansion joint installation.Bridge extension joint is position the weakest in bridge construction, directly bears the repeated action of vehicular load, is also easily subject to the impact of various nature or extraneous factor simultaneously, is easy to be damaged.
Current bridge extension joint is generally direct by embedded bar and shrinkage joint welding, play fixation, but in this structure, after welding, long-term existence tensile stress between reinforcing bar and stretching device, application life is short.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of modular expansion device, sound construction, long service life, the load-carrying members of this stretching device and displacement control system are separately simultaneously, do not interfere with each other when the two is stressed, the division of labor is clear and definite, safety when both ensureing stressed like this, displacement can be reached again even, make all central sills in a displacement controlling box, all be bearing in conventional practice on same vertical crossbeams, highly beneficial to Large Displacement Expansion Joints like this, decrease crossbeam quantity, make displacement controlling box volume be reduced to minimum zone, save steel.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide a kind of modular expansion device, comprise displacement controlling box, dowel, side bar, central sill, crossbeam and suspension bracket, described displacement controlling box is the rectangular structure of hollow, described dowel is arranged in the dual-side of displacement controlling box respectively symmetrically and evenly, described side bar is arranged on the dual-side of displacement controlling box upper surface respectively, described central sill be arranged on respectively displacement controlling box upper surface centre position and between two side bars, described crossbeam is laterally arranged in the opening of displacement controlling box leading section, described suspension bracket is arranged on the leading section of displacement controlling box respectively and is connected with displacement controlling box is vertical.
In the utility model preferred embodiment, described side bar and the quantity of central sill are 2.
In the utility model preferred embodiment, described modular expansion device also comprises compressing support and bearing, and described tight bearing and bearing are arranged on the two ends up and down of crossbeam respectively and fit tightly with displacement controlling box.
In the utility model preferred embodiment, described modular expansion device also comprises adhesive waterproof tape, and described side bar and central sill all install the upper surface being connected to displacement controlling box by adhesive waterproof tape.
The beneficial effects of the utility model are: modular expansion device of the present utility model, sound construction, long service life, the load-carrying members of this stretching device and displacement control system are separately simultaneously, do not interfere with each other when the two is stressed, the division of labor is clear and definite, safety when both ensureing stressed like this, displacement can be reached again even, make all central sills in a displacement controlling box, all be bearing in conventional practice on same vertical crossbeams, highly beneficial to Large Displacement Expansion Joints like this, decrease crossbeam quantity, make displacement controlling box volume be reduced to minimum zone, save steel.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of a preferred embodiment of the utility model modular expansion device;
Reference numeral is as follows: 1, displacement controlling box, and 2, dowel, 3, side bar, 4, central sill, 5, crossbeam, 6, suspension bracket, 7, compressing support, 8, bearing.
Detailed description of the invention
Be clearly and completely described to the technical scheme in the utility model embodiment below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the utility model embodiment comprises:
A kind of modular expansion device, comprise displacement controlling box 1, dowel 2, side bar 3, central sill 4, crossbeam 5 and suspension bracket 6, the described rectangular structure of displacement controlling box 1 in hollow, described dowel 2 is arranged in the dual-side of displacement controlling box 1 respectively symmetrically and evenly, described side bar 3 is arranged on the dual-side of displacement controlling box 1 upper surface respectively, described central sill 4 be arranged on respectively displacement controlling box 1 upper surface centre position and between two side bars 3, described crossbeam 5 is laterally arranged in the opening of displacement controlling box 1 leading section, described suspension bracket 6 is arranged on the leading section of displacement controlling box 1 respectively and is connected with displacement controlling box 1 is vertical.
Further, described modular expansion device also comprises compressing support 7 and bearing 8, described tight bearing 7 and bearing 8 are arranged on the two ends up and down of crossbeam 5 respectively and fit tightly with displacement controlling box 1, sound construction, long service life, the load-carrying members of this stretching device and displacement control system separately, do not interfere with each other when the two is stressed simultaneously, and the division of labor is clear and definite.
Further, described modular expansion device also comprises adhesive waterproof tape (figure does not look), and described side bar 3 and central sill 4 all install the upper surface being connected to displacement controlling box 1 by adhesive waterproof tape, good water-proof effect, be connected firmly, be convenient for changing simultaneously, easy to maintenance.
In the utility model, described side bar 3 and the quantity of central sill 4 are 2.Make all central sills 3 in a displacement controlling box 1, all be bearing in conventional practice on same vertical crossbeams 5, highly beneficial to Large Displacement Expansion Joints like this, decrease crossbeam 5 quantity, make the volume of displacement controlling box 1 be reduced to minimum zone, saved steel.
This structure also overcomes oblique support type expansion installation requirement processing and the quite high harsh conditions of assembly precision simultaneously, otherwise four-bar linkage structure very easily occurs locking phenomenon, and impact is freely flexible and not easily ensure the uniform disadvantage of displacement.The each junction of this structure all adopts can rotate and can slide construction.So, adaptable to curved, slope, oblique, wide bridge, the instructions for use of different types of rridges structure can be met.
In sum, modular expansion device of the present utility model, sound construction, long service life, the load-carrying members of this stretching device and displacement control system are separately simultaneously, do not interfere with each other when the two is stressed, the division of labor is clear and definite, safety when both ensureing stressed like this, can reach again displacement even, makes all central sills in a displacement controlling box, all be bearing in conventional practice on same vertical crossbeams, highly beneficial to Large Displacement Expansion Joints like this, decrease crossbeam quantity, make displacement controlling box volume be reduced to minimum zone, saved steel.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. a modular expansion device, it is characterized in that, comprise displacement controlling box, dowel, side bar, central sill, crossbeam and suspension bracket, described displacement controlling box is the rectangular structure of hollow, described dowel is arranged in the dual-side of displacement controlling box respectively symmetrically and evenly, described side bar is arranged on the dual-side of displacement controlling box upper surface respectively, described central sill be arranged on respectively displacement controlling box upper surface centre position and between two side bars, described crossbeam is laterally arranged in the opening of displacement controlling box leading section, described suspension bracket is arranged on the leading section of displacement controlling box respectively and is connected with displacement controlling box is vertical, described modular expansion device also comprises adhesive waterproof tape, described side bar and central sill all install the upper surface being connected to displacement controlling box by adhesive waterproof tape.
2. modular expansion device according to claim 1, is characterized in that, described side bar and the quantity of central sill are 2.
3. modular expansion device according to claim 1, it is characterized in that, described modular expansion device also comprises compressing support and bearing, and described tight bearing and bearing are arranged on the two ends up and down of crossbeam respectively and fit tightly with displacement controlling box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520373724.0U CN204919318U (en) | 2015-06-03 | 2015-06-03 | Modulus formula telescoping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520373724.0U CN204919318U (en) | 2015-06-03 | 2015-06-03 | Modulus formula telescoping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204919318U true CN204919318U (en) | 2015-12-30 |
Family
ID=54968462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520373724.0U Active CN204919318U (en) | 2015-06-03 | 2015-06-03 | Modulus formula telescoping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204919318U (en) |
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2015
- 2015-06-03 CN CN201520373724.0U patent/CN204919318U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |