CN209211255U - Transition strapping plate for bridge device - Google Patents
Transition strapping plate for bridge device Download PDFInfo
- Publication number
- CN209211255U CN209211255U CN201822026054.1U CN201822026054U CN209211255U CN 209211255 U CN209211255 U CN 209211255U CN 201822026054 U CN201822026054 U CN 201822026054U CN 209211255 U CN209211255 U CN 209211255U
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- plate
- transition
- steel plate
- bolt
- traction rope
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Abstract
The utility model provides transition strapping plate for bridge device, including concrete road bridge plate, rubber sheet gasket, yielding rubber plate, connecting plate, the first fixed backing plate, second fixed backing plate, the first transition overlap steel plate, and the second transition overlaps steel plate, engagement plate, support column, pedestal, bump rubber, rapid abutting joint plug-in connecting base structure, fracture protection traction rope structure is gentle to rush protection supporting frame.The U-shaped hanging seat of the utility model master, fixed block set, plate, auxiliary U-shaped hanging seat, the setting of jack and iron pin are conducive to quickly connect the first transition of installation overlap joint steel plate and the second transition overlap joint steel plate, can be convenient for operating, improve connection speed；Fixture nut, nut connecting base, adjusting screw rod, swivel head, the setting of sliding seat and traction rope body are conducive to increase fracture traction function, have reached good traction protection effect, plate is avoided to occur being broken danger of bursting apart suddenly.
Description
Technical field
The utility model belongs to road and bridge technical field more particularly to transition strapping plate for bridge device.
Background technique
Existing transition strapping plate for bridge device generally is rigid connection, during vehicular traffic traveling, can produce
Raw certain effect of vibration, however, transition lap-joint belongs to weak load-bearing point, under long-time effect of vibration, road and bridge mistake
The connection for crossing lap-joint can become no longer close, die down so as to cause integrally-built stability.
China Patent Publication No. is CN206956531U, and invention and created name is transition strapping plate for bridge device, including mixed
Solidifying dirt road bridge plate, rubber sheet gasket, transition overlap joint steel plate, fastening bolt, firm banking, locking link block, the concrete
Road and bridge intralamellar part has firm banking slot, is connected and fixed pedestal inside the firm banking slot, the firm banking both ends have
Clamping screw circular hole, the clamping screw circular hole inside connect locking screw tightening latch, and the firm banking top has fastening bolt
Circular hole, the fastening bolt circular hole have internal screw thread, and concrete road bridge plate top has rubber pad film trap, the rubber pad
Rubber sheet gasket is connected inside film trap, connection transition overlaps steel plate inside the rubber sheet gasket, and the transition overlaps steel
Plate has multiple bolt through holes, and fastening bolt, the fastening bolt lower part connection fastening are connected inside the bolt through hole
Bolt circular hole.But existing transition strapping plate for bridge device is there is also being not easy to be fixedly mounted, buffer capacity is weaker and not
Has the problem of fracture traction function.
Therefore, invention transition strapping plate for bridge device is very necessary.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides transition strapping plate for bridge device, to solve existing road
Bridge transition overlaps panel assembly there is being not easy to be fixedly mounted, and buffer capacity is weaker and does not have the problem of being broken traction function.
Transition strapping plate for bridge device, including concrete road bridge plate, rubber sheet gasket, yielding rubber plate, connecting plate, the first fixed backing plate,
Second fixed backing plate, the first transition overlap joint steel plate, the second transition overlap joint steel plate, engagement plate, support column, pedestal delay
Rubber block is rushed, rapid abutting joint plug-in connecting base structure, fracture protection traction rope structure is gentle to rush protection supporting frame, and described is mixed
Solidifying dirt road bridge plate is laid on the upper surface of rubber sheet gasket；The rubber sheet gasket is from left to right successively glued to yielding rubber plate
Upper surface；The yielding rubber plate is glued to the upper surface of connecting plate；The fixed backing plate of described first and the second fixed backing plate
It is bolted at left and right sides of the lower part of connecting plate respectively；Cross bolts are mounted on the first transition to the engagement plate respectively
Overlap the lower left side of steel plate and the lower right side of the second transition overlap joint steel plate；The support column difference is longitudinal from left to right
Successively lower end of the bolt is mounted on the upper left-hand of pedestal and the upper right of pedestal, the support column respectively it is longitudinal from a left side to
Right successively upper end bolt is mounted on the lower part of engagement plate；The lateral downside bolt of the bump rubber is mounted on the top of pedestal
Middle position；The rapid abutting joint plug-in connecting base structure setting overlaps steel plate and the second road and bridge mistake in the first transition
It crosses between overlap joint steel plate；The described fracture protection traction rope structure is transversely mounted on the first transition overlap joint steel plate and the respectively
Two transitions overlap the front and back two between steel plate；The upper end of bump rubber is arranged in the buffer protection support frame；
The rapid abutting joint plug-in connecting base structure includes main U-shaped hanging seat, fixed block set, plate, auxiliary U-shaped hanging seat, jack and iron
Pin, the right side middle position bolt of the U-shaped hanging seat of the master are mounted on the left end of fixed block set；The fixing sleeve seat is socketed in
The outer wall left end of plate；The plate transverse direction right end bolt is mounted on the left end middle position of auxiliary U-shaped hanging seat；The jack
It is provided with the inner right side middle position of fixed block set and the inside left middle position of plate respectively；The iron pin is longitudinal
Through jack bosom position.
Preferably, fracture protection traction rope structure includes fixture nut, nut connecting base, adjusting screw rod, rotation
Head, sliding seat and traction rope body, the fixture nut are welded on the front medial location of nut connecting base；The adjusting spiral shell
Bar horizontal thread is connected to the bosom position of fixture nut；The swivel head is welded on the left end of adjusting screw rod；It is described
Sliding seat bearing be connected to the right end of adjusting screw rod；The traction rope system connects the bosom position between sliding seat
It sets.
Preferably, the buffer protection support frame includes fixed column, junction steel plate, arc panel, engaging column, support rib
And mounting plate, the fixed column is longitudinal, and from left to right successively lower end of the bolt is mounted on the upper left side of junction steel plate；The arc
Shape plate cross bolts are mounted on the upper surface middle position of junction steel plate；The longitudinal from left to right successively lower end spiral shell of the engaging column
Bolt is mounted on the upper right side of junction steel plate；One end bolt is mounted on the lower part interposition of mounting plate to the support rib respectively
It sets, bolt is mounted on the lower part left and right ends of junction steel plate to the other end respectively.
Preferably, the U-shaped hanging seat of the master is socketed in the outer wall right end of the first transition overlap joint steel plate and passes through bolt
Nut connection setting.
Preferably, the auxiliary U-shaped hanging seat is socketed in the outer wall left end of the second transition overlap joint steel plate and passes through bolt
Nut connection setting.
Preferably, the traction rope body specifically uses oil thread rope, and the traction rope body is provided with two.
Preferably, fracture protection traction rope structure is equipped in pairs, the fracture protection traction rope structure
It is arranged in pairs respectively on the front and back two of the first transition overlap joint steel plate and the second transition overlap joint steel plate.
Preferably, cross bolts are mounted on the lower part interposition that the first transition overlaps steel plate to the mounting plate respectively
Set and the second transition overlap joint steel plate lower middle position.
Preferably, the upper bolt of the bump rubber is mounted on the lower middle position of junction steel plate.
Preferably, the junction steel plate longitudinal direction upper end bolt is mounted among the downside of the first transition overlap joint steel plate
Position to the right.
Preferably, longitudinal upper end bolt of the engaging column is mounted among the downside of the second transition overlap joint steel plate
Position to the left.
Preferably, stainless steel column is respectively adopted in the fixed column and engaging column.
Preferably, the arc panel specifically uses curved stainless steel latch plate.
Compared with prior art, the utility model has the following beneficial effects:
1. in the utility model, the U-shaped hanging seat of the master, fixed block set, plate, auxiliary U-shaped hanging seat, jack and iron pin are set
It sets, is conducive to quickly connect the first transition of installation overlap joint steel plate and the second transition overlap joint steel plate, can be convenient for grasping
Make, improves connection speed.
2. in the utility model, the fixture nut, nut connecting base, adjusting screw rod, swivel head, sliding seat and traction
The setting of rope body is conducive to increase fracture traction function, has reached good traction protection effect, and plate is avoided to occur breaking suddenly
Split danger of bursting apart.
3. in the utility model, the fixed column, junction steel plate, arc panel, engaging column, support rib and mounting plate
Setting is conducive to the buffer protection ability for increasing sheet material base, can avoid the problem of lapping plate fracture avalanche occur.
4. in the utility model, the gentle setting for rushing rubber slab of the concrete road bridge plate is conducive to improve concrete
The bumper and absorbing shock ability of road and bridge plate can avoid the problem of concrete road bridge plate collapses.
5. in the utility model, the setting of the rubber sheet gasket is conducive to play good buffer capacity.
6. in the utility model, the connecting plate, the setting of the first fixed backing plate and the second fixed backing plate has been conducive to
Function is fixedly connected with to good.
7. in the utility model, the first transition overlap joint steel plate and the second transition overlap setting for steel plate
It sets, advantageously ensures that the secured and stability of lapping plate.
8. in the utility model, the engagement plate, the setting of support column and pedestal is conducive to play good support guarantor
Shield effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the rapid abutting joint plug-in connecting base structure of the utility model.
Fig. 3 is the structural schematic diagram of the fracture protection traction rope structure of the utility model.
Fig. 4 is the structural schematic diagram of the buffer protection support frame of the utility model.
In figure:
1, concrete road bridge plate；2, rubber sheet gasket；3, yielding rubber plate；4, connecting plate；5, the first fixed backing plate；6, second
Fixed backing plate；7, the first transition overlaps steel plate；8, the second transition overlaps steel plate；9, engagement plate；10, support column；11,
Pedestal；12, bump rubber；13, rapid abutting joint plug-in connecting base structure；131, main U-shaped hanging seat；132, fixed block set；
133, plate；134, auxiliary U-shaped hanging seat；135, jack；136, iron pin；14, fracture protection traction rope structure；141, fixture nut；
142, nut connecting base；143, adjusting screw rod；144, swivel head；145, sliding seat；146, traction rope body；15, buffer protection branch
Support；151, fixed column；152, junction steel plate；153, arc panel；154, engaging column；155, support rib；156, mounting plate.
Specific embodiment
The utility model is specifically described with reference to the accompanying drawing, as shown in Figure 1 and Figure 2, transition overlap joint
Panel assembly, including concrete road bridge plate 1, rubber sheet gasket 2, yielding rubber plate 3, connecting plate 4, the first fixed backing plate 5, second is fixed
Backing plate 6, the first transition overlap joint steel plate 7, the second transition overlap joint steel plate 8, engagement plate 9, support column 10, pedestal 11 delay
Rubber block 12, rapid abutting joint plug-in connecting base structure 13, fracture protection traction rope structure 14 and buffering protection supporting frame 15 are rushed,
The concrete road bridge plate 1 is laid on the upper surface of rubber sheet gasket 2；The rubber sheet gasket 2 is from left to right successively glued to
The upper surface of yielding rubber plate 3；The yielding rubber plate 3 is glued to the upper surface of connecting plate 4；The fixed backing plate of described first
5 and second fix the lower part left and right sides that backing plate 6 is bolted to connecting plate 4 respectively；The engagement plate 9 distinguishes cross bolts
It is mounted on the lower left side of the first transition overlap joint steel plate 7 and the lower right side of the second transition overlap joint steel plate 8；The branch
Dagger 10 is longitudinal respectively, and from left to right successively lower end of the bolt is mounted on the upper left-hand of pedestal 11 and the upper right of pedestal 11,
The support column 10 is longitudinal respectively, and from left to right successively upper end bolt is mounted on the lower part of engagement plate 9；The yielding rubber
The lateral downside bolt of block 12 is mounted on the upper middle position of pedestal 11；The rapid abutting joint plug-in connecting base structure 13 is set
It sets and is overlapped between steel plate 7 and the second transition overlap joint steel plate 8 in the first transition；The fracture protection traction rope structure
14 are transversely mounted on the front and back two between the first transition overlap joint steel plate 7 and the second transition overlap joint steel plate 8 respectively；Institute
The upper end of bump rubber 12 is arranged in the buffer protection support frame 15 stated；The rapid abutting joint plug-in connecting base structure 13
Including the U-shaped hanging seat 131 of master, block set 132, plate 133, auxiliary U-shaped hanging seat 134, jack 135 and iron pin 136, the main U are fixed
The right side middle position bolt of type hanging seat 131 is mounted on the left end of fixed block set 132；The fixation block set 132 is socketed in slotting
The outer wall left end of plate 133；The lateral right end bolt of the plate 133 is mounted on the left end middle position of auxiliary U-shaped hanging seat 134；Institute
The jack 135 stated is provided with the inner right side middle position of fixed block set 132 and the inside left interposition of plate 133 respectively
It sets；The iron pin 136 is longitudinal to run through 135 bosom position of jack, when using installation, can pass through plate 133 and auxiliary U-shaped extension
The mating iron pin 136 that passes through again between seat 134 is fastenedly connected, and Fast Installation mating operation can be convenient for.
In the present embodiment, in conjunction with shown in attached drawing 3, the fracture protection traction rope structure 14 includes fixture nut 141,
Nut connecting base 142, adjusting screw rod 143, swivel head 144, sliding seat 145 and traction rope body 146, the fixture nut 141
It is welded on the front medial location of nut connecting base 142；143 horizontal thread of adjusting screw rod is connected to fixture nut 141
Bosom position；The swivel head 144 is welded on the left end of adjusting screw rod 143；145 bearing of the sliding seat connection
In the right end of adjusting screw rod 143；146 system of traction rope body connects the bosom position between sliding seat 145, by matching
The external shfting wrench of conjunction can clamp swivel head 144 and carry out position of the rotation adjusting screw rod 143 inside fixture nut 141, with
So that sliding seat 145 is mobile, starts to tense traction rope body 146 at this time, to guarantee fixed effect, and traction energy can be improved
Power.
In the present embodiment, in conjunction with shown in attached drawing 4, the buffer protection support frame 15 includes fixed column 151, connects steel
Plate 152, arc panel 153, engaging column 154, support rib 155 and mounting plate 156, the fixed column 151 are longitudinal from left to right
Successively lower end of the bolt is mounted on the upper left side of junction steel plate 152；153 cross bolts of arc panel are mounted on junction steel plate
152 upper surface middle position；The engaging column 154 is longitudinal, and from left to right successively lower end of the bolt is mounted on junction steel plate 152
Upper right side；One end bolt is mounted on the lower middle position of mounting plate 156, the other end point to the support rib 155 respectively
Other bolt is mounted on the lower part left and right ends of junction steel plate 152, can be played to junction steel plate 152 by support rib 155 anti-bending
The effect of folding passes through the mating connection between fixed column 151 and engaging column 154, it is ensured that is fixedly connected with effect, while by branch
The setting of stake rib plate 155 and mounting plate 156, it is ensured that the stability and connectivity robustness of the device.
In the present embodiment, specifically, the U-shaped hanging seat 131 of the master is socketed in the outer of the first transition overlap joint steel plate 7
Wall right end simultaneously connects setting by bolt and nut.
In the present embodiment, specifically, the auxiliary U-shaped hanging seat 134 is socketed in the outer of the second transition overlap joint steel plate 8
Wall left end simultaneously connects setting by bolt and nut.
In the present embodiment, specifically, the traction rope body 146 specifically uses oil thread rope, the traction rope body 146
It is provided with two.
In the present embodiment, specifically, the fracture protection traction rope structure 14 is equipped in pairs, the fracture
Protection traction rope structure 14 is arranged in pairs respectively on the first transition overlap joint steel plate 7 and the second transition overlaps steel plate 8
Front and back two.
In the present embodiment, specifically, cross bolts are mounted on the first transition overlap joint to the mounting plate 156 respectively
The lower middle position of the lower middle position of steel plate 7 and the second transition overlap joint steel plate 8.
In the present embodiment, specifically, the upper bolt of the bump rubber 12 is mounted under junction steel plate 152
Portion middle position.
In the present embodiment, specifically, the longitudinal upper end bolt of the junction steel plate 152 is mounted on the first transition and takes
Connect the center-right position in downside of steel plate 7.
In the present embodiment, specifically, longitudinal upper end bolt of the engaging column 154 is mounted on the second transition and takes
Connect the center-left position in downside of steel plate 8.
In the present embodiment, specifically, stainless steel column is respectively adopted in the fixed column 151 and engaging column 154.
In the present embodiment, specifically, the arc panel 153 specifically uses curved stainless steel latch plate.
Working principle
In the utility model, when using installation, it can be led to again by mating between plate 133 and auxiliary U-shaped hanging seat 134
It crosses iron pin 136 to be fastenedly connected, Fast Installation mating operation can be convenient for, by cooperating external shfting wrench that can clamp rotation
First 144 carry out position of the rotation adjusting screw rod 143 inside fixture nut 141 starts at this time so that sliding seat 145 is mobile
Traction rope body 146 is tensed, to guarantee fixed effect, and driving power can be improved, it can be to connection steel by support rib 155
Plate 152 plays the role of anti-bending, passes through the mating connection between fixed column 151 and engaging column 154, it is ensured that is fixedly connected with effect
Fruit, while the setting Jing Guo support rib 155 and mounting plate 156, it is ensured that the stability and connectivity robustness of the device.
Using technical solution described in the utility model or those skilled in the art in technical solutions of the utility model
Under inspiration, similar technical solution is designed, and reaches above-mentioned technical effect, is the protection model for falling into the utility model
It encloses.
Claims (10)
1. transition strapping plate for bridge device, which is characterized in that the transition strapping plate for bridge device includes concrete road bridge plate (1),
Rubber sheet gasket (2), yielding rubber plate (3), connecting plate (4), first fixed backing plate (5), second fixed backing plate (6), the first road and bridge
Transition overlaps steel plate (7), and the second transition overlaps steel plate (8), engagement plate (9), support column (10), pedestal (11), buffers rubber
Blob of viscose (12), rapid abutting joint plug-in connecting base structure (13), fracture protection traction rope structure (14) and buffering protection supporting frame
(15), the concrete road bridge plate (1) is laid on the upper surface of rubber sheet gasket (2)；The rubber sheet gasket (2) is from left to right
Successively it is glued to the upper surface of yielding rubber plate (3)；The yielding rubber plate (3) is glued to the upper surface of connecting plate (4)；Institute
First fixed backing plate (5) and second fixed backing plate (6) stated are bolted to respectively at left and right sides of the lower part of connecting plate (4)；Institute
Cross bolts are mounted on lower left side and the second road and bridge mistake that the first transition overlaps steel plate (7) to the engagement plate (9) stated respectively
Cross the lower right side of overlap joint steel plate (8)；The support column (10) is longitudinal respectively, and from left to right successively lower end of the bolt is mounted on pedestal
(11) upper right of upper left-hand and pedestal (11), the support column (10) longitudinal from left to right successively upper end respectively
Bolt is mounted on the lower part of engagement plate (9)；Laterally downside bolt is mounted on the upper of pedestal (11) to the bump rubber (12)
Portion middle position；Described rapid abutting joint plug-in connecting base structure (13) setting in the first transition overlap joint steel plate (7) and
Second transition overlaps between steel plate (8)；Fracture protection traction rope structure (14) is transversely mounted on the first via respectively
Bridge transition overlaps the front and back two between steel plate (7) and the second transition overlap joint steel plate (8)；The buffer protection support frame
(15) it is arranged in the upper end of bump rubber (12)；The rapid abutting joint plug-in connecting base structure (13) includes main U-shaped extension
Seat (131), fixed block set (132), plate (133), auxiliary U-shaped hanging seat (134), jack (135) and iron pin (136), the main U
The right side middle position bolt of type hanging seat (131) is mounted on the left end of fixed block set (132)；Fixation block set (132) set
It connects in the outer wall left end of plate (133)；The lateral right end bolt of the plate (133) is mounted on the left end of auxiliary U-shaped hanging seat (134)
Middle position；The jack (135) is provided with inner right side middle position and the plate of fixed block set (132) respectively
(133) inside left middle position；The iron pin (136) longitudinally runs through jack (135) bosom position.
2. transition strapping plate for bridge device as described in claim 1, which is characterized in that the fracture protection traction rope structure
(14) include fixture nut (141), nut connecting base (142), adjusting screw rod (143), swivel head (144), sliding seat (145) and
Traction rope body (146), the fixture nut (141) are welded on the front medial location of nut connecting base (142)；The tune
Section screw rod (143) horizontal thread is connected to the bosom position of fixture nut (141)；The swivel head (144) is welded on
The left end of adjusting screw rod (143)；Described sliding seat (145) bearing is connected to the right end of adjusting screw rod (143)；The traction
Rope body (146) system connects the bosom position between sliding seat (145).
3. transition strapping plate for bridge device as claimed in claim 2, which is characterized in that the buffer protection support frame (15)
Including fixed column (151), junction steel plate (152), arc panel (153), engaging column (154), support rib (155) and mounting plate
(156), longitudinal from left to right successively lower end of the bolt is mounted on the upper left sides of junction steel plate (152) to the fixed column (151)；Institute
Arc panel (153) cross bolts stated are mounted on the upper surface middle position of junction steel plate (152)；The engaging column (154)
It is longitudinal that from left to right successively lower end of the bolt is mounted on the upper right sides of junction steel plate (152)；Support rib (155) difference one
End bolt is mounted on the lower middle positions of mounting plate (156), and bolt is mounted on the lower parts of junction steel plate (152) to the other end respectively
Left and right ends.
4. transition strapping plate for bridge device as described in claim 1, which is characterized in that the U-shaped hanging seat of the master (131) socket
It overlaps the outer wall right end of steel plate (7) in the first transition and passes through bolt and nut and connect setting.
5. transition strapping plate for bridge device as described in claim 1, which is characterized in that auxiliary U-shaped hanging seat (134) socket
It overlaps the outer wall left end of steel plate (8) in the second transition and passes through bolt and nut and connect setting.
6. transition strapping plate for bridge device as claimed in claim 2, which is characterized in that the traction rope body (146) is specific
Using oil thread rope, the traction rope body (146) is provided with two.
7. transition strapping plate for bridge device as described in claim 1, which is characterized in that the fracture protection traction rope structure
(14) it is equipped in pairs, fracture protection traction rope structure (14) is arranged in pairs respectively on the first transition overlap joint steel
The front and back two of plate (7) and the second transition overlap joint steel plate (8).
8. transition strapping plate for bridge device as claimed in claim 3, which is characterized in that the mounting plate (156) is horizontal respectively
The lower middle position and the second transition overlap joint steel plate (8) of the first transition overlap joint steel plate (7) are mounted on to bolt
Lower middle position.
9. transition strapping plate for bridge device as claimed in claim 3, which is characterized in that the bump rubber (12) it is upper
Portion's bolt is mounted on the lower middle position of junction steel plate (152).
10. transition strapping plate for bridge device as claimed in claim 9, which is characterized in that the junction steel plate (152) is longitudinal
Upper end bolt is mounted on the center-right position in downside of the first transition overlap joint steel plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822026054.1U CN209211255U (en) | 2018-12-04 | 2018-12-04 | Transition strapping plate for bridge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822026054.1U CN209211255U (en) | 2018-12-04 | 2018-12-04 | Transition strapping plate for bridge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209211255U true CN209211255U (en) | 2019-08-06 |
Family
ID=67462879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822026054.1U Expired - Fee Related CN209211255U (en) | 2018-12-04 | 2018-12-04 | Transition strapping plate for bridge device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209211255U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111041973A (en) * | 2020-01-14 | 2020-04-21 | 安徽水安建设集团股份有限公司 | A durability overlap joint bridge for water conservancy ditch |
-
2018
- 2018-12-04 CN CN201822026054.1U patent/CN209211255U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111041973A (en) * | 2020-01-14 | 2020-04-21 | 安徽水安建设集团股份有限公司 | A durability overlap joint bridge for water conservancy ditch |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190806 Termination date: 20191204 |