CN112195770A - Adjustable temporary expansion joint cover plate device - Google Patents
Adjustable temporary expansion joint cover plate device Download PDFInfo
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- CN112195770A CN112195770A CN202010946611.0A CN202010946611A CN112195770A CN 112195770 A CN112195770 A CN 112195770A CN 202010946611 A CN202010946611 A CN 202010946611A CN 112195770 A CN112195770 A CN 112195770A
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- cover plate
- expansion joint
- stay
- frame
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
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Abstract
The invention relates to an adjustable temporary expansion joint cover plate device, which comprises a cover plate and a cover plate frame, wherein the cover plate frame is of a quadrilateral frame structure and comprises two transverse plates which are parallel to each other and two longitudinal plates connected between the two transverse plates, and the cover plate covers an upper opening of the cover plate frame; be equipped with on the apron frame and be used for fixing its supporter at the expansion joint, the supporter is including setting firmly in two mounting between the transverse plate to and swing joint is two moving part between the transverse plate, distance between moving part and the mounting is adjustable, the moving part with be equipped with between the mounting and be used for the locking piece with both locks, mounting and moving part are used for the butt on two bridges that constitute the expansion joint. The cover plate device is simple in structure, convenient to mount and dismount, wide in application range, low in manufacturing cost, capable of being repeatedly used, capable of saving construction cost and capable of improving safety during bridge construction.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to an adjustable temporary expansion joint cover plate device.
Background
In recent years, the urban traffic volume is greatly increased, the traffic jam phenomenon of all places is intensified, and the road traffic capacity is seriously insufficient. Newly-built road bridge or widen the transformation to existing road bridge, make old bridge throughput improve, can not only effectively alleviate the phenomenon of traffic jam, more can prolong the life of old bridge.
As shown in the attached drawing 1, in the bridge construction process, a longitudinal expansion joint a is generally arranged between a new bridge 1 and an old bridge 2, the longitudinal expansion joint a is generally temporarily covered by geotextile, the geotextile is often wound or moved due to weather reasons such as wind and rain, and the expansion joint is exposed on an operation surface, so that bridge deck sundries fall under the bridge through the expansion joint, the passing vehicles under the bridge are damaged, and the passing people are injured by smashing; meanwhile, construction operators are easily stumbled by the geotextile in the construction process to cause injury to the operators. In addition, the used geotextile is disposable geotextile, so that the reusability rate is low, a large amount of resources are wasted, and the construction cost is increased.
Disclosure of Invention
In view of the above, the present invention provides an adjustable temporary cover plate device for an expansion joint, which aims to solve the problems in the prior art.
According to the invention, the adjustable temporary expansion joint cover plate device comprises a cover plate and a cover plate frame, wherein the cover plate frame is of a quadrilateral frame structure and comprises two transverse plates which are parallel to each other and two longitudinal plates connected between the two transverse plates, and the cover plate covers an upper opening of the cover plate frame;
be equipped with on the apron frame and be used for fixing its supporter at the expansion joint, the supporter is including setting firmly in two mounting between the transverse plate to and swing joint is two moving part between the transverse plate, distance between moving part and the mounting is adjustable, the moving part with be equipped with between the mounting and be used for the locking piece with both locks, mounting and moving part are used for the butt on two bridges that constitute the expansion joint.
Preferably, the locking member includes a plurality of stay rings and at least three stays, the plurality of stay rings are respectively and uniformly arranged on two opposite side surfaces of the fixed member and the movable member, two ends of each stay are respectively connected to one of the stay rings on the fixed member and the movable member, and the stays are arranged in a non-parallel manner.
Preferably, the length of the stay bar is adjustable, the stay bar includes a first stay bar used for being connected with the fixed part and a second stay bar used for being connected with the movable part, an adjusting rod is arranged between the first stay bar and the second stay bar, the first stay bar is in threaded connection with a first end of the adjusting rod, the second stay bar is in threaded connection with a second end of the adjusting rod, and the direction of rotation of the threads on the first stay bar is opposite to the direction of rotation of the threads on the second stay bar.
Preferably, two sliding grooves are correspondingly formed in the two transverse plates of the cover plate frame and extend in the horizontal direction, sliding rods are respectively arranged at the two ends of the moving part, and the sliding rods at the two ends of the moving part are respectively connected in the two sliding grooves in a sliding mode.
Preferably, the fixed part and the movable part respectively comprise a steel sheet, a pressure plate and damping cotton, the pressure plate is detachably connected to the steel sheet, the damping cotton is bonded and fixed to the pressure plate, and the damping cotton is used for abutting against the side face of a bridge forming the expansion joint.
Preferably, an inverted L-shaped notch is formed in the damping cotton, and two edges of the inverted L-shaped notch are respectively used for abutting against the side face and the upper surface of the bridge forming the expansion joint.
Preferably, the cover plate is hinged to the cover plate frame.
Preferably, the apron is including the bottom plate and the roof that link into an integrated entity, the roof is circular-arc structure, works as the apron lid fits when the apron frame, the cotton top surface of shock attenuation with the bottom plate is laminated mutually.
Preferably, one end of the top plate is hinged to the longitudinal plate adjacent to the fixing member.
Preferably, be equipped with the locking on the apron and go up the hook, be equipped with the locking on the apron frame and hook down, the locking go up the hook with the hook uses in coordination under the locking is used for with the apron locking is fixed on the apron frame.
The invention provides an adjustable temporary expansion joint cover plate device which comprises a cover plate and a cover plate frame, wherein the cover plate frame is used for supporting two bridges forming an expansion joint, and the cover plate is used for covering the expansion joint and preventing danger caused by the falling of bridge deck sundries through the expansion joint. The cover plate frame is fixed on the expansion joint through the support body formed by the fixing piece and the moving piece, the fixing piece and the moving piece are respectively used for abutting against two bridges forming the expansion joint, and the distance between the moving piece and the fixing piece is adjustable, so that the expansion joint with different widths can be adapted. The cover plate device is simple in structure, convenient to mount and dismount, wide in application range, low in manufacturing cost, capable of being repeatedly used, capable of saving construction cost and capable of improving safety during bridge construction.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 shows a schematic structural view of a longitudinal expansion joint formed by a new bridge and an old bridge.
Fig. 2 is a front view of an adjustable temporary expansion joint cover device according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view at B-B in fig. 2.
Fig. 4 is a schematic view showing still another structure of the stay bar in the adjustable temporary expansion joint cover device according to the present invention.
Fig. 5 is a cross-sectional view at C-C in fig. 3.
In the figure: the novel bridge comprises a new bridge 1, an old bridge 2, a cover plate 3, a top plate 31, side plates 32, a bottom plate 33, a locking upper hook 34, a cover plate frame 4, a transverse plate 41, a sliding groove 411, a longitudinal plate 42, a locking lower hook 43, a fixing piece 5, a steel sheet 51, a sliding rod 511, a supporting rod ring 512, a pressure plate 52, a fixing bolt 521, damping cotton 53, a movable piece 6, a supporting rod 7, a first supporting rod 71, a second supporting rod 72, an adjusting rod 73, a handle 731 and a hinge 8.
Detailed Description
Various embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by the same or similar reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale.
The invention provides an adjustable temporary expansion joint cover plate device, which comprises a cover plate 3 and a cover plate frame 4, wherein the cover plate frame 4 is of a quadrilateral frame structure and comprises two transverse plates 41 which are parallel to each other and two longitudinal plates 42 connected between the two transverse plates 41, and the cover plate 3 covers an upper opening of the cover plate frame 4; the cover plate frame 4 is provided with a support body for fixing the cover plate frame on the expansion joint, the support body comprises a fixing part 5 fixedly arranged between two transverse plates 41 and a moving part 6 movably connected between the two transverse plates 41, the distance between the moving part 6 and the fixing part 5 can be adjusted, a locking part for locking the moving part 6 and the fixing part 5 is arranged between the moving part 6 and the fixing part 5, and the fixing part 5 and the moving part 6 are used for abutting against two bridges forming the expansion joint.
The adjustable temporary expansion joint cover plate device provided by the invention is suitable for longitudinal expansion joints between two bridges, and as shown in fig. 1, the expansion joint in the embodiment is a longitudinal expansion joint formed between a new bridge 1 and an old bridge 2 after the new bridge 1 is added when the existing old bridge 2 is expanded and modified.
Referring to fig. 2 and 3, the cover frame 4 in the present embodiment is a rectangular frame structure, and includes two parallel and oppositely disposed transverse plates 41 and two parallel and oppositely disposed longitudinal plates 42. The transverse plates 41 and the longitudinal plates 42 are made of steel plates with certain thicknesses, and the transverse plates 41 and the longitudinal plates 42 are fixedly connected together through welding, so that the cover plate frame 4 is formed. When the cover plate 3 device is used, two transverse plates 41 of the cover plate frame 4 are supported on two bridges forming an expansion joint, namely, two ends of each transverse plate 41 are respectively supported on the bridges on two sides of the expansion joint, two longitudinal plates 42 are respectively positioned on the bridges on two sides of the expansion joint, the cover plate 3 covers the upper opening of the cover plate frame 4 and seals the upper opening of the cover plate frame 4, so that the expansion joint is covered, and bridge deck sundries are prevented from causing danger due to falling of the expansion joint.
The supporter on apron frame 4 includes mounting 5 and moving part 6, and mounting 5 fixed connection is between two horizontal plates 41, and moving part 6 swing joint is between two horizontal plates 41, and the distance between moving part 6 and the mounting 5 is adjustable, and moving part 6 can move along the length direction of horizontal plate 41 promptly, and the device is when specifically using, and moving part 6 can move along the width direction of expansion joint to adjust the distance between moving part 6 and the mounting 5, thereby make the expansion joint that the supporter can adapt to different widths increases the application scope of this apron 3 device.
Two sliding grooves 411 are correspondingly arranged on two transverse plates 41 of the cover plate frame 4, the sliding grooves 411 extend along the horizontal direction, sliding rods 511 are respectively arranged at two ends of the movable piece 6, and the sliding rods 511 at two ends of the movable piece 6 are respectively connected in the two sliding grooves 411 in a sliding manner, so that the movable piece 6 can move relative to the fixed piece 5, and the distance between the movable piece 6 and the fixed piece 5 is adjusted.
The fixed part 5 and the movable part 6 respectively comprise a steel sheet 51, a pressure plate 52 and damping cotton 53, the pressure plate 52 is detachably connected to the steel sheet 51, the damping cotton 53 is bonded and fixed to the pressure plate 52, and the damping cotton 53 is used for abutting against the side face of a bridge forming an expansion joint. The steel sheet 51, the pressure plate 52 and the damping cotton 53 are stacked together, the steel sheet 51, the pressure plate 52 and the damping cotton 53 are equal in length and height, the length of the steel sheet 51, the pressure plate 52 and the damping cotton 53 is equal to the distance between the two transverse plates 41 of the cover plate frame 4, the tops of the fixed member 5 and the movable member 6 are flush with the tops of the transverse plates 41, and the bottoms of the fixed member 5 and the movable member 6 extend downwards to exceed the bottoms of the transverse plates 41 so as to be abutted to the side faces of the two bridges on two sides of the expansion.
Referring to fig. 2, 3 and 5, in the present embodiment, the steel sheet 51 is made of a steel sheet with a certain thickness, the steel sheet 51 of the fixed member 5 is fixedly connected to the two transverse plates 41 by welding, the sliding slot 411 on the transverse plates 41 is in the shape of an oblong hole penetrating through the transverse plates 41, two ends of the steel sheet 51 of the movable member 6 are respectively provided with a sliding rod 511, the sliding rod 511 penetrates through the sliding slot 411, a portion of the sliding rod 511 located in the sliding slot 411 is smaller than the width of the sliding slot 411, and a portion of the sliding rod 511 located outside the transverse plates 41 is larger than the width of the sliding slot 411, so as to prevent the. The pressure plate 52 is fixed on the steel sheet 51 through a plurality of fixing bolts 521, the damping cotton 53 is fixed on the pressure plate 52 through bonding of an adhesive, and the pressure plate 52 is detachably connected with the steel sheet 51 through the fixing bolts 521, so that the damping cotton 53 can be conveniently replaced when damaged or insufficient in elasticity. The damping cotton 53 is provided with an inverted L-shaped gap, and two sides of the inverted L-shaped gap are respectively used for abutting against the side surface and the upper surface of the bridge forming the expansion joint. The shock attenuation cotton 53 can with the seamless laminating of bridge, hinder the object to drop from the expansion joint.
The locking member comprises a plurality of stay bar rings 512 and at least three stay bars 7, the stay bar rings 512 are respectively and uniformly arranged on two opposite side surfaces of the fixed member 5 and the movable member 6, two ends of each stay bar 7 are respectively connected to one stay bar ring 512 on the fixed member 5 and one stay bar ring 512 on the movable member 6, and the stay bars 7 are arranged in a non-parallel manner. The fixed part 5 and the movable part 6 form a whole through a geometric invariant and unnecessary constraint system consisting of at least three support rods 7, and further fix the cover plate frame 4. The damping cotton 53 on both sides can be clung to the bridge on both sides of the expansion joint, so as to fix the cover plate frame 4. Meanwhile, the damping cotton 53 can adapt to the change of the width of the expansion joint caused by the temperature difference, and the cover plate 3 device is always kept in seamless connection with the bridge. As shown in fig. 3, in this embodiment, brace rings 512 are uniformly disposed on opposite side surfaces of the fixed member 5 and the movable member 6, the brace rings 512 are made of circular steel pipes, the brace rings 512 are fixedly connected to the steel sheets 51 of the fixed member 5 and the movable member 6 by welding, 90 ° bends are disposed at two ends of the brace 7, the bends at two ends of the brace 7 are in the same direction, and the bends at two ends of the brace 7 are respectively inserted into one of the brace rings 512 disposed on the fixed member 5 and the movable member 6, so as to connect the fixed member 5 and the movable member 6, and fix the cover plate frame 4 on the bridge. When the stay 7 is used to connect the fixed member 5 and the movable member 6, one end of the stay 7 at both sides is connected to the outermost stay ring 512 of the fixed member 5 or the movable member 6, so that the connection between the fixed member 5 and the movable member 6 is more stable and reliable.
Further, the stay bar 7 can be provided in a length-adjustable structure, see fig. 4 for a further structural schematic view of the stay bar, the stay bar 7 comprises a first stay bar 71 stay bar 7 used for being connected with the fixed part 5 and a second stay bar 72 stay bar 7 used for being connected with the movable part 6, an adjusting rod 73 is arranged between the first stay bar 71 stay bar 7 and the second stay bar 72 stay bar 7, a first end of the first stay bar 71 stay bar 7 is in threaded connection with a first end of the adjusting rod 73, a second end of the first stay bar 71 stay bar 7 is provided with a bending part used for being inserted in the stay bar ring 512, a first end of the second stay bar 72 stay bar 7 is in threaded connection with a second end of the adjusting rod 73, a second end of the second stay bar 72 stay bar 7 is also provided with a bending part used for being inserted in the stay bar ring 512, wherein the screw thread on the first stay 71 and the screw thread on the second stay 72 are opposite to each other. For example, the external thread provided at the first end of the first stay 71 and the external thread provided at the first end of the second stay 72 are a normal thread and a reverse thread, respectively, and the thread directions of the internal thread holes at both ends of the adjustment rod 73 are the normal thread and the reverse thread. When the device is used, the bent parts at the two ends of the stay bar 7 are inserted into the stay bar ring 512 to form a gap, and the length of the stay bar 7 can be adjusted through the adjusting rod 73 in the middle of the stay bar 7, so that the stay bar 7 tightly supports the fixed part 5 and the movable part 6. In order to make the adjusting rod 73 more convenient and labor-saving when adjusting the length of the stay bar 7, two handles 731 are provided on the adjusting rod 73, and force can be applied through the handles 731 when the adjusting rod 73 is rotated, so that it is more convenient when adjusting the length of the stay bar 7.
The apron 3 is including connecting into an organic whole bottom plate 33 and roof 31, and roof 31 is circular-arc structure, and the top terminal surface of shock attenuation cotton 53 is parallel and level with the top terminal surface of apron frame 4, and when apron 3 lid was fitted on apron frame 4, the top surface and the bottom plate 33 laminating of shock attenuation cotton 53 mutually. The top surface of the damping cotton 53 is attached to the cover plate 3, so that a good sealing effect can be achieved, and small sundries on the construction bridge surface can be prevented from entering the expansion joint area from gaps among the fixing piece 5, the moving piece 6 and the cover plate 3. In this embodiment, the cover plate 3 includes a top plate 31, a bottom plate 33, and two side plates 32 disposed at two ends of the top plate 31 and the bottom plate 33, and the top plate 31, the two side plates 32, and the bottom plate 33 are all formed by cutting steel plates and are connected together by welding to form a hollow structure. The arc-shaped structure of the top plate 31 enables less sundries and rainwater to be accumulated on the cover plate 3. The top surface of the shock absorption cotton 53 can be slightly higher than the top end surface of the cover plate frame 4, so that when the cover plate 3 covers the cover plate frame 4, the bottom plate 33 of the cover plate 3 can compress the shock absorption cotton 53 when being attached to the shock absorption cotton 53, and the better sealing effect is achieved. In this embodiment, one end of the top plate 31 is hinged to a longitudinal plate 42 adjacent to the fixing member 5 by a hinge 8. The cover plate device further comprises a locking mechanism for fixing the cover plate 3 and the cover plate frame 4 in a locking mode, the locking mechanism comprises a locking upper hook 34 and a locking lower hook 43, the locking upper hook 34 is arranged on the cover plate 3, the locking lower hook 43 is correspondingly arranged on the cover plate frame 4, and the locking upper hook 34 and the locking lower hook 43 are matched to be used for fixing the cover plate 3 on the cover plate frame 4 in a locking mode.
The use method of the adjustable temporary expansion joint cover plate device comprises the following steps:
first, the cover plate frame 4 is placed on two bridges constituting an expansion joint, and the support body is positioned in the expansion joint while the longitudinal direction of the transverse plate 41 is aligned with the width direction of the expansion joint. Then, the cover plate 3 is opened, the fixing piece 5 of the support body is abutted to the side face of one bridge, the movable piece 6 of the support body is adjusted to adapt to the width of the expansion joint, the movable piece 6 is abutted to the side face of the other bridge, and the movable piece 6 and the fixing piece 5 are locked and fixed by using a locking piece, so that the cover plate frame 4 is fixed and does not move. Specifically, in this embodiment, the movable member 6 and the fixed member 5 are connected and fixed by using three support rods 7, and the three support rods 7 are arranged in a non-parallel manner, so that a geometrically-invariant and unnecessary-constraint-free system is formed between the fixed member 5 and the movable member 6, and the damping cotton 53 on both sides can be tightly attached to the bridge on both sides of the expansion joint. Finally, covering the cover plate 3 on the cover plate frame 4, and buckling the locking upper hook 34 on the cover plate 3 with the locking lower hook 43 on the cover plate frame 4; when the construction is finished and the cover plate device is dismantled, the support rods 7 are all taken down, the movable piece 6 is moved towards the fixing piece 5, and then the cover plate device can be taken away from the position of the expansion joint of the bridge.
The invention provides an adjustable temporary expansion joint cover plate device which comprises a cover plate and a cover plate frame, wherein the cover plate frame is used for supporting two bridges forming an expansion joint, and the cover plate is used for covering the expansion joint and preventing danger caused by the falling of bridge deck sundries through the expansion joint. The cover plate frame is fixed on the expansion joint through the support body formed by the fixing piece and the moving piece, the fixing piece and the moving piece are respectively used for abutting against two bridges forming the expansion joint, and the distance between the moving piece and the fixing piece is adjustable, so that the expansion joint with different widths can be adapted. The cover plate device is simple in structure, convenient to mount and dismount, wide in application range, low in manufacturing cost, capable of being repeatedly used, capable of saving construction cost and capable of improving safety during bridge construction.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (10)
1. The adjustable temporary expansion joint cover plate device is characterized by comprising a cover plate and a cover plate frame, wherein the cover plate frame is of a quadrilateral frame structure and comprises two transverse plates which are parallel to each other and two longitudinal plates connected between the two transverse plates, and the cover plate covers an upper opening of the cover plate frame;
be equipped with on the apron frame and be used for fixing its supporter at the expansion joint, the supporter is including setting firmly in two mounting between the transverse plate to and swing joint is two moving part between the transverse plate, distance between moving part and the mounting is adjustable, the moving part with be equipped with between the mounting and be used for the locking piece with both locks, mounting and moving part are used for the butt on two bridges that constitute the expansion joint.
2. The adjustable temporary expansion joint cover assembly according to claim 1, wherein said locking member comprises a plurality of rings and at least three struts, said rings are uniformly disposed on two opposite sides of said fixed member and said movable member, each of said struts is connected at its opposite ends to one of said rings, and said struts are disposed in a non-parallel manner with respect to each other.
3. The adjustable temporary expansion joint cover device according to claim 2, wherein the length of the stay is adjustable, the stay comprises a first stay for connecting with the fixed member and a second stay for connecting with the movable member, an adjusting rod is disposed between the first stay and the second stay, the first stay is screwed at a first end of the adjusting rod, the second stay is screwed at a second end of the adjusting rod, and the screw thread on the first stay is opposite to the screw thread on the second stay.
4. The adjustable cover plate device for temporary expansion joints as claimed in claim 1, wherein two sliding grooves are correspondingly formed on two transverse plates of the cover plate frame, the sliding grooves extend along a horizontal direction, two ends of the movable member are respectively provided with a sliding rod, and the sliding rods at two ends of the movable member are respectively slidably connected in the two sliding grooves.
5. The adjustable temporary expansion joint cover plate device as claimed in claim 1, wherein said fixed member and said movable member respectively comprise a steel plate, a pressure plate and a damping cotton, said pressure plate is detachably connected to said steel plate, said damping cotton is fixed on said pressure plate by bonding, said damping cotton is used to abut against the side of the bridge constituting the expansion joint.
6. The adjustable temporary expansion joint cover device according to claim 5, wherein the shock-absorbing cotton is provided with an inverted L-shaped gap, and two sides of the inverted L-shaped gap are respectively used for abutting against the side surface and the upper surface of the bridge forming the expansion joint.
7. The adjustable temporary expansion joint cover device as claimed in claim 5, wherein said cover is hinged to said cover frame.
8. The adjustable temporary expansion joint cover plate device according to claim 7, wherein the cover plate comprises a bottom plate and a top plate which are connected into a whole, the top plate is of a circular arc structure, and when the cover plate covers the cover plate frame, the top surface of the damping cotton is attached to the bottom plate.
9. The adjustable temporary expansion joint cover device according to claim 8, wherein one end of said top plate is hinged to a longitudinal plate adjacent to said fixing member.
10. The adjustable temporary expansion joint cover device as claimed in claim 9, wherein the cover plate is provided with an upper locking hook, the cover plate frame is provided with a lower locking hook, and the upper locking hook and the lower locking hook are used together for locking and fixing the cover plate on the cover plate frame.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010946611.0A CN112195770A (en) | 2020-09-10 | 2020-09-10 | Adjustable temporary expansion joint cover plate device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010946611.0A CN112195770A (en) | 2020-09-10 | 2020-09-10 | Adjustable temporary expansion joint cover plate device |
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| CN112195770A true CN112195770A (en) | 2021-01-08 |
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| CN202010946611.0A Pending CN112195770A (en) | 2020-09-10 | 2020-09-10 | Adjustable temporary expansion joint cover plate device |
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| 寸江峰: "《建筑力学》", 31 January 2018, 北京理工大学出版社 * |
| 王文雄: "铝合金建筑伸缩缝施工方法", 《工业建筑》 * |
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