CN210341626U - Shallow bridge expansion joint - Google Patents
Shallow bridge expansion joint Download PDFInfo
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- CN210341626U CN210341626U CN201920865164.9U CN201920865164U CN210341626U CN 210341626 U CN210341626 U CN 210341626U CN 201920865164 U CN201920865164 U CN 201920865164U CN 210341626 U CN210341626 U CN 210341626U
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- expansion joint
- joint body
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- expansion
- bottom beam
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Abstract
The utility model discloses a shallow bridge expansion joint, including floorbar, expansion joint body, the inner wall middle part of side spacing groove vertically is equipped with a plurality of connecting blocks respectively about the floorbar, expansion joint body bottom and floorbar inner wall are constituteed and are adjusted the cavity, the side surface bottom is equipped with V font expansion plate respectively about the expansion joint body, expansion joint body bottom resets about the inslot wall top both ends respectively vertical fixed right triangle form strengthening rib that is provided with, it is provided with the recoil spring through installation piece transverse movement to reset about the inslot to reset side inner wall middle part. The utility model discloses the spacing groove of extrusion floorbar both sides is in order to change the shape of expansion joint body under the expansion plate effect after the bridge expend with heat and extend, and expansion joint body deformation extrusion inner wall re-entry spring leads to the expansion joint body impaired in order to avoid deformation excessively, accomplishes the reseing of expansion joint body shape fast under the re-entry spring effect during shrinkage, is favorable to using repeatedly and can effectively increase life, excellent in use effect.
Description
Technical Field
The utility model relates to a shallow bridge expansion joint correlation technique field specifically is a shallow bridge expansion joint.
Background
Bridge expansion joints: it is referred to that in order to meet the requirement of deck deformation, expansion joints are usually provided between two beam ends, between a beam end and an abutment, or at the hinge joint of a bridge. The expansion joint is required to be freely telescopic in two directions parallel to and perpendicular to the axis of the bridge, and the expansion joint is firm and reliable, and when a vehicle runs, the vehicle is smooth and free of sudden jump and noise; the rainwater and garbage soil can be prevented from infiltration and blocking; the installation, the inspection, the maintenance and the dirt elimination are all simple and convenient. At the position of the expansion joint, the handrail and the bridge deck pavement are disconnected. The function of bridge expansion joint: consists in adjusting the displacements and couplings between the superstructure caused by the vehicle loads and the bridge construction materials. The expansion joint that is used for the bridge equipment that has now mostly is that the reinforcing bar runs through the connecting plate combination that two subtends set up and forms, because lack canceling release mechanical system, hardly accomplishes the automatic shrink after extending when in-service use, not only influences performance, is unfavorable for the whole clean and tidy nature on bridge road surface moreover, and the practicality is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a shallow layer bridge expansion joint to solve among the prior art current expansion joint that is used for the bridge equipment mostly the reinforcing bar and run through the connecting plate combination that two subtend set up and form, owing to lack canceling release mechanical system, hardly accomplish the automatic shrink after extending, not only influence performance, be unfavorable for the whole clean and tidy nature on bridge road surface moreover, problem that the practicality is poor.
In order to achieve the above object, the utility model provides a following technical scheme: a shallow bridge expansion joint comprises a bottom beam and an expansion joint body, wherein the middle parts of the left and right side surfaces of the bottom beam are respectively and vertically provided with a C-shaped limiting groove, a plurality of circular mounting holes are respectively vertically arranged on the upper and lower inner walls of the limiting groove, a plurality of cube-shaped connecting blocks are longitudinally and fixedly arranged in the middle of the inner wall of the limiting groove, the expansion joint body is fixedly arranged above the bottom beam through a through hole longitudinally formed in the middle of the top surface of the bottom beam, the bottom of the expansion joint body and the inner wall of the bottom beam form an adjusting cavity, the bottom ends of the left and right side surfaces of the expansion joint body are respectively provided with a V-shaped expansion plate, the bottom surface of the expansion joint body is vertically provided with a U-shaped reset groove, the left end and the right end of the top of the inner wall of the reset groove are respectively and vertically and fixedly provided with a right-angled triangular reinforcing rib, the middle parts of the inner walls of the left side and the right side of the reset groove are transversely and movably provided with a re-feeding spring through a mounting block.
Preferably, the expansion plate is a stainless steel plate, an arc-shaped reinforcing part is arranged at a corner of the expansion plate, and the expansion plate is integrated with the bottom surface of the expansion joint body into a whole by adopting a die-casting process.
Preferably, the expansion joint body and the bottom beam are made of stainless steel alloy materials, and the expansion joint body and the inner wall of the bottom beam are integrated into a whole by adopting a welding process.
Preferably, the inner wall of the bottom beam side limiting groove is at least longitudinally provided with three connecting blocks, and the middle parts of the sides of the connecting blocks are respectively and transversely welded with annular anchoring ribs.
Preferably, the side surface of the expansion joint body and the outer surface of the expansion plate are respectively sprayed with a polyurethane waterproof coating.
Preferably, the top surfaces of the bottom beam and the expansion joint body are respectively sprayed with a chromium carbide alloy wear-resistant coating.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the expansion joint body is equipped with the V font expansion plate respectively to the side surface bottom of controlling, the side inner wall middle part of controlling in the expansion joint body bottom reset groove is provided with the recoil spring through the horizontal activity of installation piece, the spacing groove of extrusion floorbar both sides is in order to change the shape of expansion joint body under the expansion plate effect after the bridge expends with heat, expansion joint body deformation extrusion inner wall recoil spring leads to the expansion joint body impaired in order to avoid deformation excessively, accomplish the reseing of expansion joint body shape under the recoil spring effect fast during shrinkage, be favorable to using repeatedly and can effectively increase life, excellent in use effect.
2. The arc-shaped reinforcing part is arranged at the bend angle of the inner wall of the expansion plate, reinforcing ribs are arranged at the left end and the right end of the top of the inner wall of the reset groove, the bearing capacity of the expansion plate and the expansion joint body can be effectively enhanced, and the overall use performance is improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a side view of the present invention;
fig. 3 is a schematic structural diagram of a position a of the present invention.
In the figure: 1. a bottom beam; 2. an expansion joint body; 3. a limiting groove; 4. mounting holes; 5. connecting blocks; 6. Adjusting the cavity; 7. a retractable plate; 8. a reset groove; 9. reinforcing ribs; 10. a spring is re-entered; 11. a reinforcing portion; 12. anchoring ribs; 13. a water-resistant coating; 14. a chromium carbide alloy wear-resistant coating.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, 2 and 3, in an embodiment of the present invention, a shallow bridge expansion joint comprises a bottom beam 1 and an expansion joint body 2, wherein a C-shaped limiting groove 3 is vertically formed in the middle of each of the left and right side surfaces of the bottom beam 1, a plurality of circular mounting holes 4 are vertically formed in each of the upper and lower inner walls of the limiting groove 3, a plurality of cube-shaped connecting blocks 5 are longitudinally and fixedly disposed in the middle of the inner wall of the limiting groove 3, the expansion joint body 2 is fixedly disposed above the bottom beam 1 through a through hole longitudinally formed in the middle of the top surface of the bottom beam 1, an adjusting cavity 6 is formed by the bottom of the expansion joint body 2 and the inner wall of the bottom beam 1, V-shaped expansion plates 7 are respectively disposed at the bottom ends of the left and right side surfaces of the expansion joint body 2, a U-shaped reset groove 8 is vertically formed in the bottom surface of the, the middle parts of the inner walls of the left side and the right side of the reset groove 8 are transversely and movably provided with a re-entry spring 10 through a mounting block; the bottom ends of the left side surface and the right side surface of the expansion joint body are respectively provided with a V-shaped expansion plate, the middle parts of the left side inner wall and the right side inner wall of a reset groove at the bottom of the expansion joint body are transversely and movably provided with a re-feeding spring through a mounting block, a bridge extrudes limiting grooves at two sides of a bottom beam after expanding due to thermal expansion so as to change the shape of the expansion joint body under the action of the expansion plates, the expansion joint body deforms and extrudes the inner wall re-feeding spring so as to avoid the expansion joint body from being damaged due to excessive deformation, the reset of the shape of the expansion joint body is quickly completed under the action;
the expansion plate 7 is a stainless steel plate, an arc-shaped reinforcing part 11 is arranged at a corner, and the expansion plate 7 is integrated with the bottom surface of the expansion joint body 2 into a whole by adopting a die-casting process, so that the reliability after repeated use is ensured;
the expansion joint body 2 and the bottom beam 1 are both made of stainless steel alloy materials, and the expansion joint body 2 is integrated with the inner wall of the bottom beam 1 into a whole by adopting a welding process, so that the use performance is enhanced;
the inner wall of the side limiting groove 3 of the bottom beam 1 is at least longitudinally provided with three connecting blocks 5, and the middle parts of the sides of the connecting blocks 5 are respectively transversely welded with annular anchoring ribs 12, so that the assembly and the welding are convenient;
the side surface of the expansion joint body 2 and the outer surface of the expansion plate 7 are respectively sprayed with a polyurethane waterproof coating 13, and the top surfaces of the bottom beam 1 and the expansion joint body 2 are respectively sprayed with a chromium carbide alloy wear-resistant coating 14, so that the service life can be effectively prolonged; the spacing groove 3 of 1 both sides of extrusion floorbar is in order to change the shape of expansion joint body 2 under the expansion plate 7 effect after the bridge expends with heat and extends, and 2 deformation extrusion inner walls of expansion joint body are gone back spring 10 and are excessively leaded to expansion joint body 2 impaired in order to avoid deformation, accomplish the reseing of 2 shapes of expansion joint body fast under the effect of going back spring 10 during shrinkage, are favorable to using repeatedly and can effectively increase life, excellent in use effect.
The utility model discloses a theory of operation and use flow: the spacing groove 3 of 1 both sides of extrusion floorbar is in order to change the shape of expansion joint body 2 under the expansion plate 7 effect after the bridge expends with heat and extends, and 2 deformation extrusion inner walls of expansion joint body are gone back spring 10 and are excessively leaded to expansion joint body 2 impaired in order to avoid deformation, accomplish the reseing of 2 shapes of expansion joint body fast under the effect of going back spring 10 during shrinkage, are favorable to using repeatedly and can effectively increase life, excellent in use effect.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a shallow layer bridge expansion joint, includes floorbar (1), expansion joint body (2), its characterized in that: the expansion joint comprises a bottom beam (1), wherein C-shaped limiting grooves (3) are respectively and vertically formed in the middle of the left side surface and the right side surface of the bottom beam (1), a plurality of circular mounting holes (4) are respectively and vertically formed in the upper side inner wall and the lower side inner wall of each limiting groove (3), a plurality of cube-shaped connecting blocks (5) are longitudinally and fixedly arranged in the middle of the inner wall of each limiting groove (3), an expansion joint body (2) is fixedly arranged above the bottom beam (1) through a through hole longitudinally formed in the middle of the top surface of the bottom beam (1), an adjusting cavity (6) is formed by the bottom of the expansion joint body (2) and the inner wall of the bottom beam (1), V-shaped expansion plates (7) are respectively arranged at the bottom ends of the left side surface and the right side surface of the expansion joint body (2), U-shaped reset grooves (8) are vertically formed in the surface, the middle parts of the inner walls of the left side and the right side of the reset groove (8) are transversely and movably provided with a recoil spring (10) through a mounting block.
2. The shallow bridge expansion joint of claim 1, wherein: the expansion plate (7) is a stainless steel plate, an arc-shaped reinforcing part (11) is arranged at the corner of the stainless steel plate, and the expansion plate (7) is integrated with the bottom surface of the expansion joint body (2) into a whole by a die-casting process.
3. The shallow bridge expansion joint of claim 1, wherein: the expansion joint body (2) and the bottom beam (1) are made of stainless steel alloy materials, and the expansion joint body (2) and the inner wall of the bottom beam (1) are integrated into a whole by adopting a welding process.
4. The shallow bridge expansion joint of claim 1, wherein: the inner wall of the bottom beam (1) side limiting groove (3) is at least longitudinally provided with three connecting blocks (5), and the middle part of the side of each connecting block (5) is transversely welded with a circular ring-shaped anchoring rib (12) respectively.
5. The shallow bridge expansion joint of claim 1, wherein: polyurethane waterproof coatings (13) are respectively sprayed on the side surface of the expansion joint body (2) and the outer surface of the expansion plate (7).
6. The shallow bridge expansion joint of claim 1, wherein: and the top surfaces of the bottom beam (1) and the expansion joint body (2) are respectively sprayed with a chromium carbide alloy wear-resistant coating (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920865164.9U CN210341626U (en) | 2019-06-11 | 2019-06-11 | Shallow bridge expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920865164.9U CN210341626U (en) | 2019-06-11 | 2019-06-11 | Shallow bridge expansion joint |
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| Publication Number | Publication Date |
|---|---|
| CN210341626U true CN210341626U (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920865164.9U Active CN210341626U (en) | 2019-06-11 | 2019-06-11 | Shallow bridge expansion joint |
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| CN (1) | CN210341626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117444495A (en) * | 2023-12-26 | 2024-01-26 | 山西建筑工程集团有限公司 | Bridge expansion joint welding fixer with limiting function |
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2019
- 2019-06-11 CN CN201920865164.9U patent/CN210341626U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117444495A (en) * | 2023-12-26 | 2024-01-26 | 山西建筑工程集团有限公司 | Bridge expansion joint welding fixer with limiting function |
| CN117444495B (en) * | 2023-12-26 | 2024-03-12 | 山西建筑工程集团有限公司 | Bridge expansion joint welding fixer with limiting function |
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Address after: Fu Yun group, Ma'an street, Ma'an center community, Liuhe District, Nanjing City, Jiangsu Province Patentee after: Jiangsu leading mengmaole Zhizao Technology Group Co., Ltd Address before: 211500 Fuyun group, Ma'an center community, Ma'an street, Liuhe District, Nanjing City, Jiangsu Province Patentee before: JIANGSU MAURER NEW MATERIAL TECHNOLOGY Co.,Ltd. |