CN2321808Y - Cement road surface expansion joint - Google Patents
Cement road surface expansion joint Download PDFInfo
- Publication number
- CN2321808Y CN2321808Y CN 98235409 CN98235409U CN2321808Y CN 2321808 Y CN2321808 Y CN 2321808Y CN 98235409 CN98235409 CN 98235409 CN 98235409 U CN98235409 U CN 98235409U CN 2321808 Y CN2321808 Y CN 2321808Y
- Authority
- CN
- China
- Prior art keywords
- expansion
- expansion joint
- teeth
- base
- cement pavement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Road Paving Structures (AREA)
Abstract
The utility model relates to an expansion joint of cement road surfaces, composed of two branching expansion joints. The branching expansion joint comprises a base which is fixedly connected with the road surface and a jagged cushioning part arranged at the upper part of the base, i.e., expansion teeth and intervals of the expansion teeth which are arranged alternately. The branching expansion joints are engaged through the expansion teeth and the intervals of the expansion teeth, and the upper parts of the branching expansion joints are arranged on the same plane. The utility model has the advantages of high pressing-resistant strength, strong cushioning ability and convenient installation. The utility model is suitable for the connection between the cement road surfaces.
Description
The utility model belongs to the linkage between cement pavement and the road surface.
The purpose cement pavement is built the back and is adopted the method for elder generation's cutting back oil dressing to solve the problem of expanding with heat and contract with cold, and time-consuming, extremely inconvenient, technical difficulty is big, and the reduction of cut place compressive strength, and is fragile.And most of moulding road surface easily expanded when summer, temperature was too high, no wider space.Projection or sagging phenomenon appear in the road surface, all are to damage because of expansion causes bridge floor as several on the Changjiang river bridges, and vehicle stops up, and causes economic loss in various degree.
The purpose of this utility model provides big, strong, easy for installation, the economical and practical cement pavement expansion joint of weakening ability of a kind of compressive strength.
The purpose of this utility model is achieved in that a kind of cement pavement expansion joint, and it comprises branch expansion joint 5, divides expansion joint 3, divides expansion joint 5 to comprise the base 9 that can fixedly connected with cement pavement, and base 9 tops are provided with alternate weakening tooth 7, expansion teeth gap 11; Divide expansion joint 3 to comprise the base 12 that can fixedly connected with cement pavement, base 12 tops are provided with alternate expansion teeth 14 and expansion teeth gap 8; Divide expansion joint 5 to be meshed by expansion teeth 7,14 and expansion teeth gap 11,8 with dividing expansion joint 3, its top at grade.Divide expansion joint 5, divide expansion joint 3 to fixedly connected with cement pavement 2, on its base 9, the base 12 screw 10 is set respectively by bolt 1, nut 4.Base 9,12 and expansion teeth 7,14 junctions are provided with reinforcing rib 6,13.Expansion teeth 7 root sections are trapezoidal, and 11 bottom transverse cross sections, expansion teeth gap are trapezoidal.Expansion teeth 14, root cross section are trapezoidal, and 8 bottom transverse cross sections, expansion teeth gap are trapezoidal.14,7 cooperations of expansion teeth are matched in clearance.
Because adopt two to mesh the branch expansion joint mutually, the deformation that thermal expansion causes can be eliminated in its gap, and is easy to install; Owing to divide expansion joint to adopt the grey cast-iron monoblock cast to form, therefore have the characteristics that compressive strength is big, the shock absorbing ability is strong; Thereby solved the phenomenon of bump, made road smooth, traffic safety has reduced traffic accident and economic loss, and is practical.
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that the A of Fig. 1 is to partial view.
Fig. 3 is the lateral view of Fig. 2.
Fig. 4 is that the B of Fig. 1 is to partial view.
Fig. 5 is the lateral view of Fig. 4.
Among the figure: 1, bolt, 2, cement pavement, 3, divide expansion joint, 4, nut, 5, divide expansion joint, 6, reinforcing rib, 7, expansion teeth, 8, the expansion teeth gap, 9, base, 10, screw, 11, the expansion teeth gap, 12, base, 13, reinforcing rib, 14, expansion teeth.
The utility model comprises branch expansion joint (5,3), adopts the HT40-68 grey cast-iron to cast.Divide expansion joint 5 to comprise that base 9, base 9 tops are provided with the zigzag shock absorbing part, it is alternate expansion teeth 7, expansion teeth gap 11, the base middle part is provided with screw, divide expansion joint 5 to fixedly connected with cement pavement by bolt female 4, the length in expansion teeth and expansion teeth gap 11 is greater than base thickness, and the zigzag shock absorbing part is that base 9 junctions are provided with reinforcing rib 6.The cross section in expansion teeth 7 and expansion teeth gap 11 is trapezoidal, and the longitudinal section is a rectangle.
Divide the composition of expansion joint 3 similar to branch expansion joint 3, it comprises base 12, and base 12 tops are provided with the zigzag shock absorbing part, promptly alternate expansion teeth 14, backlash 8, divide expansion joint 3 by bolt 1, the screw that nut 4 and base middle part are provided with is fixedlyed connected with cement pavement.The length of expansion teeth 14 and backlash 8 is greater than base 12 thickness, and base 12 and expansion teeth junction can be provided with the boss that it is wider than base 12 bottom thickness and make reinforcing rib 13.Tooth and backlash shape with state mutually similar.
Expansion joint be installed in casting concrete the time finish simultaneously, or install during redeck.Solid on the local basis that expansion joint is installed, do not allow after the installation to sink.The flank of tooth of two fens expansion joints requires on a horizontal plane during installation.Stone bolt 1 must not have loosening phenomenon, if phenomenons such as existence is sunk, distortion, bolt looseness should in time be got rid of.
Claims (6)
1, a kind of cement pavement expansion joint, it is characterized in that it comprises branch expansion joint (5), divides expansion joint (3), divide expansion joint (5) to comprise the base (9) that can fixedly connected with cement pavement, base (9) top is provided with alternate expansion teeth (7), expansion teeth gap (11); Divide expansion joint (3) to comprise the base (12) that can fixedly connected with cement pavement, base (12) top is provided with alternate expansion teeth (14) and expansion teeth gap (8); Divide expansion joint (5) to be meshed by expansion teeth (7,14) and expansion teeth gap (11,8) with dividing expansion joint (3), its top at grade.
2, cement pavement expansion joint according to claim 1, it is characterized in that branch expansion joint (5), divide expansion joint (3) to fixedly connected with cement pavement (2), on its base (9), the base (12) screw (10) is set respectively by bolt (1), nut (4).
3, cement pavement expansion joint according to claim 1 is characterized in that base (9,12) and expansion teeth (7,14) junction are provided with reinforcing rib (6,13).
4, cement pavement expansion joint according to claim 1 is characterized in that expansion teeth (7) root cross section is trapezoidal, and bottom transverse cross section, expansion teeth gap (11) is trapezoidal.
5, cement pavement expansion joint according to claim 1 is characterized in that expansion teeth (14) root cross section is trapezoidal, and bottom transverse cross section, expansion teeth gap (8) is trapezoidal.
6, cement pavement expansion joint according to claim 1, it is characterized in that cooperating between expansion teeth (14,7) is matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98235409 CN2321808Y (en) | 1998-03-12 | 1998-03-12 | Cement road surface expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98235409 CN2321808Y (en) | 1998-03-12 | 1998-03-12 | Cement road surface expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2321808Y true CN2321808Y (en) | 1999-06-02 |
Family
ID=33983702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98235409 Expired - Fee Related CN2321808Y (en) | 1998-03-12 | 1998-03-12 | Cement road surface expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2321808Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324196C (en) * | 2002-10-18 | 2007-07-04 | 张明煌 | Adjustable road surface expandable seam apparatus and mounting method thereof |
| CN102245838A (en) * | 2008-10-17 | 2011-11-16 | 芬恩私人有限公司 | Concrete casting elements |
| CN104988828A (en) * | 2015-08-07 | 2015-10-21 | 湖南城市学院 | Concrete pavement expansion joint connector |
-
1998
- 1998-03-12 CN CN 98235409 patent/CN2321808Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324196C (en) * | 2002-10-18 | 2007-07-04 | 张明煌 | Adjustable road surface expandable seam apparatus and mounting method thereof |
| CN102245838A (en) * | 2008-10-17 | 2011-11-16 | 芬恩私人有限公司 | Concrete casting elements |
| CN104988828A (en) * | 2015-08-07 | 2015-10-21 | 湖南城市学院 | Concrete pavement expansion joint connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |