CN203514189U - Bridge extensible device - Google Patents
Bridge extensible device Download PDFInfo
- Publication number
- CN203514189U CN203514189U CN201320641260.8U CN201320641260U CN203514189U CN 203514189 U CN203514189 U CN 203514189U CN 201320641260 U CN201320641260 U CN 201320641260U CN 203514189 U CN203514189 U CN 203514189U
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- Prior art keywords
- shaped steel
- profile steel
- square tube
- tube shaped
- fixed
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- Expired - Lifetime
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 61
- 239000010959 steel Substances 0.000 claims abstract description 61
- 238000003466 welding Methods 0.000 abstract description 11
- 238000010008 shearing Methods 0.000 abstract 2
- 230000002146 bilateral effect Effects 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a bridge extensible device. The bridge extensible device comprises two square pipe profile steel with two ends provided with openings, pins which are fixed on bilateral sides of the square pipe profile steel, a supporting beam, two oppositely arranged boundary beam profile steel and the middle beam profile steel which is fixed above the supporting beam; the cross sections of the square pipe profile steel are in rectangular shapes; two ends of the supporting beam are inserted into inner holes of the square pipe profile steel; the inner sides of the square pipe profile steel are welded to wing edges of the boundary beam profile steel; the upper end of a shearing spring is fixed at the lower end of the boundary beam profile steel; the lower end of the shearing spring is fixed at the upper end of the supporting beam; a supporting spring is arranged between the supporting beam and the square pipe profile steel. The bridge extensible device has the advantages of reducing welding workloads due to the fact that the cross sections of the square pipe profile steel are in integrated rectangular structures, being strong in integral rigidity, eliminating welding deformation influences to the accuracy of the box interior size, avoiding welding joints of a sliding box from welding opening and being simple in limit mode and convenient to produce and machine due to the fact the supporting beam is limited between two limit plates.
Description
Technical field
The utility model relates to modulus type bridge technology field, is specifically related to a kind of control device for Expansion Units for Highway Bridges.
Background technology
Along with the fast development of highway transportation, traffic volume of highway and carload lot are also increasing, and this properties to Expansion Units for Highway Bridges is had higher requirement.Slippage case, as the most important load-bearing of modular expansion device, displacement component, be delivered to vehicular load fast in bridge construction and remove and protect inner slippage parts, and its rational design can improve the application life of stretching device greatly.Present most of slippage case is all to form with Plate Welding, and the welding deformation in welding process can reduce the dimensional accuracy of box house, affects the assembly precision of flexible member, thereby affects the application life of displacement system.And the difficult assurance of welding quality, unreal if the concrete of bottom half is built, under the repeated action of vehicular load, often there is the situation that slippage case snaps at weld, have a strong impact on the application life of stretching device.The seat of spiral shell up and down of slippage case inner side is used for fixing control spring pressing plate, fixed form is improper, there will be come off, situation of movement, thereby affect the displacement function of stretching device, and in the stretching device of oblique, often there is the improper situation that causes that control spring pressing plate and central sill generation are interfered in upper and lower spiral shell seat location.
Summary of the invention
The utility model is in order to overcome the deficiency of above technology, provides that a kind of precision is high, weight capacity is strong, the simple bridge extension joint of internal construction.
The utility model overcomes the technical scheme that its technical problem adopts:
This bridge extension joint, the square tube shaped steel that comprises the rectangular shape of cross section of two both ends opens, be fixed on the pin of square tube shaped steel both sides, brace summer, two side bar shaped steel that are oppositely arranged, be fixed on the central sill shaped steel of brace summer top, the two ends of described brace summer are plugged in respectively in the endoporus of square tube shaped steel, described square tube shaped steel inner side is welded in the edge of a wing of side bar shaped steel, the lower end of side bar shaped steel is fixed in shear spring upper end, the upper end of brace summer is fixed in shear spring lower end, support spring is arranged between brace summer and square tube shaped steel, described square tube shaped steel bottom is provided with some installing holes, described support spring is fixed by the securing member through installing hole, the stopping means moving left and right for limiting brace summer is installed in the endoporus of described square tube shaped steel.
Above-mentioned stopping means is for to be fixedly welded on two limiting plates in square tube shaped steel respectively, and described brace summer is placed between two limiting plates.
For the closely knit and attractive in appearance demand of casing, also comprise the baffle plate being fixed on square tube shaped steel outboard end face, the cross sectional dimensions of the appearance and size of described baffle plate and square tube shaped steel matches.
The beneficial effects of the utility model are: because square tube shaped steel cross section is integral type rectangular configuration, thereby reduced welding job amount, and make integral rigidity stronger, eliminated the impact of welding deformation on box house dimensional accuracy, the situation of having avoided slippage case to snap at weld.Stopping means restriction supporting beam moves left and right.Pin is welded on the both sides of square hollow section steel, is used for being connected with embedded bar etc.Shear spring and support spring are used for adjusting the flexible dress of bridge displacement, with respect to tradition, pass through the structure of control spring pressing plate and upper and lower spiral shell seat and otic placode fixing spring, simplify indoor design, reduced the numerous and diverse situation that may occur quality problems causing of component.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that A-A in Fig. 1 is to cross-sectional view;
Fig. 3 is that B-B in Fig. 1 is to cross-sectional view;
In figure, 1. side bar shaped steel 2. central sill shaped steel 3. square tube shaped steel 4. brace summer 5. shear spring 6. support spring 7. baffle plate 8. pin 9. installing hole 10. limiting plates.
The specific embodiment
Below in conjunction with accompanying drawing 1, accompanying drawing 2,3 pairs of the utility model of accompanying drawing, be described further.
As shown in Figure 1, this bridge extension joint, the square tube shaped steel 3 that comprises the rectangular shape of cross section of two both ends opens, be fixed on the pin 8 of square tube shaped steel 3 both sides, brace summer 4, two side bar shaped steel 1 that are oppositely arranged, be fixed on the central sill shaped steel 2 of brace summer 4 tops, the two ends of brace summer 4 are plugged in respectively in the endoporus of square tube shaped steel 3, square tube shaped steel 3 inner sides are welded in the edge of a wing of side bar shaped steel 1, the lower end of side bar shaped steel 1 is fixed in shear spring 5 upper ends, the upper end of brace summer 4 is fixed in shear spring 5 lower ends, support spring 6 is arranged between brace summer 4 and square tube shaped steel 3, square tube shaped steel 3 bottoms are provided with some installing holes 9, support spring 6 is by fixing through the securing member of installing hole 9, the stopping means moving left and right for limiting brace summer 4 is installed in the endoporus of square tube shaped steel 3.Because square tube shaped steel 3 cross sections are integral type rectangular configuration, thereby reduced welding job amount, and made integral rigidity stronger, eliminated the impact of welding deformation on box house dimensional accuracy, the situation of having avoided slippage case to snap at weld.Stopping means restriction supporting beam moves left and right.Pin 5 is welded on the both sides of square hollow section steel 1, is used for being connected with embedded bar etc.Shear spring 5 and support spring 6 are for adjusting bridge extension joint displacement, with respect to tradition by the structure of spring bearer plate and upper and lower spiral shell seat and otic placode fixing spring, simplify indoor design, reduced the numerous and diverse situation that may occur quality problems causing of component.
As shown in accompanying drawing 2 and accompanying drawing 3, stopping means is for to be fixedly welded on two limiting plates 10 in square tube shaped steel 3 respectively, and described brace summer 4 is placed between two limiting plates 10.Brace summer 4 is limited between two limiting plates 10, and limit method is simple, facilitates production and processing.
Also comprise the baffle plate 7 being fixed on square tube shaped steel 3 outside end faces, the cross sectional dimensions of the appearance and size of described baffle plate 7 and square tube shaped steel 3 matches.By at square tube shaped steel 3 both sides fixed dams 7, can make the exposed square hole in its outer end block, play effect closely knit and attractive in appearance.
Claims (3)
1. a bridge extension joint, it is characterized in that: the square tube shaped steel (3) that comprises the rectangular shape of cross section of two both ends opens, be fixed on the pin (8) of square tube shaped steel (3) both sides, brace summer (4), two side bar shaped steel (1) that are oppositely arranged, be fixed on the central sill shaped steel (2) of brace summer (4) top, the two ends of described brace summer (4) are plugged in respectively in the endoporus of square tube shaped steel (3), described square tube shaped steel (3) inner side is welded in the edge of a wing of side bar shaped steel (1), the lower end of side bar shaped steel (1) is fixed in shear spring (5) upper end, the upper end of brace summer (4) is fixed in shear spring (5) lower end, support spring (6) is arranged between brace summer (4) and square tube shaped steel (3), described square tube shaped steel (3) bottom is provided with some installing holes (9), described support spring (6) is by fixing through the securing member of installing hole (9), the stopping means moving left and right for limiting brace summer (4) is installed in the endoporus of described square tube shaped steel (3).
2. bridge extension joint according to claim 1, is characterized in that: described stopping means is for being fixedly welded on respectively the limiting plate (10) in two square tube shaped steel (3), and described brace summer (4) is placed between two limiting plates (10).
3. bridge extension joint according to claim 1, is characterized in that: also comprise the baffle plate (7) being fixed on the end face of square tube shaped steel (3) outside, the cross sectional dimensions of the appearance and size of described baffle plate (7) and square tube shaped steel (3) matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320641260.8U CN203514189U (en) | 2013-10-17 | 2013-10-17 | Bridge extensible device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320641260.8U CN203514189U (en) | 2013-10-17 | 2013-10-17 | Bridge extensible device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203514189U true CN203514189U (en) | 2014-04-02 |
Family
ID=50373144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320641260.8U Expired - Lifetime CN203514189U (en) | 2013-10-17 | 2013-10-17 | Bridge extensible device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203514189U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510467A (en) * | 2013-10-17 | 2014-01-15 | 山东斯普润桥梁材料技术有限公司 | Bridge expansion device |
| CN107119557A (en) * | 2017-06-19 | 2017-09-01 | 金佳琪 | A kind of novel bridge expansion gap device |
-
2013
- 2013-10-17 CN CN201320641260.8U patent/CN203514189U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510467A (en) * | 2013-10-17 | 2014-01-15 | 山东斯普润桥梁材料技术有限公司 | Bridge expansion device |
| CN107119557A (en) * | 2017-06-19 | 2017-09-01 | 金佳琪 | A kind of novel bridge expansion gap device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
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| CX01 | Expiry of patent term |