CN112281670B - Adjustable height limiting device for bridge construction - Google Patents
Adjustable height limiting device for bridge construction Download PDFInfo
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- CN112281670B CN112281670B CN202011198830.1A CN202011198830A CN112281670B CN 112281670 B CN112281670 B CN 112281670B CN 202011198830 A CN202011198830 A CN 202011198830A CN 112281670 B CN112281670 B CN 112281670B
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides an adjustable height limiting device for bridge construction, which belongs to the technical field of bridges and comprises a supporting mechanism, wherein the supporting mechanism comprises a supporting bottom frame which is fixedly supported with the ground, two sides of the top of the supporting bottom frame are vertically supported and provided with a bottom plate bracket, two sides of the top of the bottom plate bracket are vertically and fixedly provided with supporting guide rods, two sides of the bottom of the supporting bottom frame are fixedly supported and provided with moving wheels, wheel bodies of the moving wheels are airbag wheels, two sides of the top of the moving wheels are fixedly supported and provided with supporting plates, the top of each supporting plate is transversely provided with a supporting bracket, two sides of each supporting bracket are obliquely provided with a first square frame, the adjustable height limiting device is convenient for supporting and fixing the supporting bottom frame of the upper half part through the supporting mechanism, the bottom plate bracket is convenient for supporting and fixing the bottom plate bracket in the using process, the folding leg and the hinge that adopt conveniently play good clamping hinge's effect to the connection layer board that the top was equipped with.
Description
Technical Field
The invention belongs to the technical field of bridges, and particularly relates to an adjustable height limiting device for bridge construction.
Background
The bridge refers to a building constructed for a road to cross natural or artificial barriers, and is erected on rivers, lakes and seas, so that vehicles, pedestrians and the like can smoothly pass through the bridge. A bridge generally consists of an upper structure, a lower structure and an auxiliary structure, wherein the upper structure mainly refers to a bridge span structure and a support system; the lower structure comprises a bridge abutment, a bridge pier and a foundation; the auxiliary structures refer to bridge end butt straps, tapered revetments, diversion works and the like. The bridge is divided according to a structural system and comprises four basic systems, namely a beam bridge, an arch bridge, a rigid bridge and a suspension cable bearing (a suspension bridge and a cable-stayed bridge).
However, when the existing bridge is erected, the support frame arranged at the top of the bridge is not convenient to support and fix, the traditional bridge erection process is not efficient, the support height of the bridge cannot be finely adjusted, and the traditional bridge is not convenient to stabilize, support and fix the top of the bridge in the erection process.
Disclosure of Invention
The invention aims to provide an adjustable height limiting device for bridge construction, and aims to solve the problems that the top of a bridge is inconvenient to play a good role in supporting and fixing in the erection process of the conventional bridge, and a body of the bridge cannot play a good role in stably supporting in the erection process of the conventional bridge.
In order to achieve the purpose, the invention provides the following technical scheme: an adjustable height limiting device for bridge construction comprises a supporting mechanism, wherein the supporting mechanism comprises a supporting underframe which is supported and fixed with the ground, two sides of the top of the supporting underframe are vertically supported and provided with a bottom plate bracket, two sides of the top of the bottom plate bracket are vertically and fixedly provided with supporting guide rods, the two side edges of the bottom of the supporting underframe are both fixedly supported and provided with moving wheels, the wheel bodies of the moving wheels are airbag wheels, the two sides of the top of the movable wheel are fixedly supported and provided with supporting plates, the top of each supporting plate is transversely provided with a supporting bracket, the two sides of the supporting bracket are respectively provided with a first square frame in an inclined way, one end of the first square frame is respectively provided with a connecting supporting plate in a fixed way, the bottom both sides of connecting the layer board all are equipped with the folding leg through the hinge, the bottom of folding leg is fixed with the bottom sprag that supports the bracket.
In order to achieve a good dispersing effect, as a preferred embodiment of the present invention: the utility model discloses a protection rack, but support chassis's bottom middle part fixed stay installation is equipped with first connecting plate, the equal vertical installation in four edges of first connecting plate is equipped with I-shaped steel, the top middle part fixed stay installation of I-shaped steel is equipped with the bar and supports the steelframe, the equal fixed mounting in four edges in top of bar support steelframe is equipped with height-adjustable's link, the equal fixed stay installation in top of link is equipped with the protection frame, the equal fixed mounting in one end of protection frame is equipped with the box.
In order to improve the supporting efficiency, the invention adopts a preferable scheme that: the equal vertical support installation in four edges in top of support bracket is equipped with electric hydraulic cylinder, the equal fixed stay installation in top of electric hydraulic cylinder is equipped with electric telescopic handle, electric telescopic handle's top fixed stay installation is equipped with pulls lifting mechanism, pull lifting mechanism and include and support the fixed base that pulls with supporting mechanism, the installation of the lateral wall fixed surface that pulls the base is equipped with flexible jar that presses, the installation of the top fixed stay of flexible jar is equipped with the second connecting plate, threaded mounting hole has all been seted up to four edges in top of second connecting plate.
In order to connect the stable supports, the invention adopts a preferable scheme that: the top fixed stay installation of second connecting plate is equipped with the support frame, square fluting has been seted up at the middle part of support frame, the equal fixed stay installation in square fluting inside is equipped with the elasticity supporting box, the equal fixed mounting in inside of elasticity supporting box is equipped with the electrical power cylinder, the output of electrical power cylinder all supports fixedly with the second connecting plate that the lateral wall was equipped with.
In order to make traction drive possible, as a preferred embodiment of the invention: the top fixed stay installation of second connecting plate is equipped with adjustable limit for height mechanism, adjustable limit for height mechanism includes and supports fixed lateral wall steelframe with elasticity supporting box, the lateral wall steelframe includes supports fixed lateral wall steelframe with the bottom plate, the equal fixed mounting in four edges and corners of lateral wall steelframe is equipped with the square frame of second.
In order to connect the stable supports, the invention adopts a preferable scheme that: the utility model discloses a steel frame, including lateral wall steelframe, lateral wall middle part fixed stay installation, equal fixed mounting is equipped with the clamp plate between the lateral wall of clamp plate, the equal fixed mounting installation in four edges of clamp plate is equipped with and pulls the steelframe, the equal fixed mounting in one side of pulling the steelframe is equipped with atress board, both sides the equal fixed mounting in the back of atress board is equipped with the frame of lifting, the bottom fixed stay installation of the frame of lifting is equipped with gear drive mechanism.
In order to make the supporting protection, as a preferable scheme of the invention: the gear driving mechanism comprises a protective support fixed with a support base plate in a supporting mode, a bracket is arranged at one end of the protective support in a fixed supporting mode, a protection plate is arranged at one end of the bracket in an all-fixed mounting mode, a driving motor is arranged at the surface of the protection plate in a fixed mounting mode, and the output end of the driving motor is fixed with a clamping plate in a supporting mode.
In order to make the effect of the stable support, as a preferred embodiment of the present invention: the bottom fixed mounting who removes the wheel is equipped with the protection wheel motor, the output of protection wheel motor is connected with one of them removal wheel transmission.
In order to achieve a good automatic control effect, the invention adopts a preferable scheme that: the one end fixed mounting of electric hydraulic cylinder is equipped with the base, the one end fixed mounting of base is equipped with square groove, the inside in square groove all installs and is equipped with fastening screw, fastening screw's one end installation is equipped with square board.
In order to facilitate the control, as a preferred scheme of the invention: the middle part fixed mounting who supports the chassis is equipped with the PLC controller, electric hydraulic cylinder, electric telescopic handle, flexible jar, electric hydraulic cylinder and protection wheel motor all with PLC controller electric connection, PLC controller and external power supply electric connection.
Compared with the prior art, the invention has the beneficial effects that:
1) in the daily use process, the supporting mechanism is arranged to conveniently play a good role in supporting and fixing the supporting underframe of the upper half part, the bottom plate support is arranged to conveniently support and fix the bottom plate support in the use process, the folding frame and the hinge are adopted to conveniently play a good role in clamping and hinging the connecting supporting plate arranged at the top part, and the supporting bracket is arranged to serve as the acting force of the upper part and can play a good role in hinging and supporting through the connecting supporting plate and the folding frame when the upper part of the bridge is supported;
2) in daily use, can play the effect of good firm support to the I-shaped support frame that the top was equipped with through first connecting plate and the I-shaped steel that are equipped with, at the in-process that erects the bridge of top, conveniently play the tight effect of good support clamp with the top of bridge, support the steelframe and then make things convenient for the user of service to play the effect of good dispersion with the effort that the top supported through the bar that is equipped with.
Drawings
The accompanying drawings, which 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 principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic view of a support chassis according to the present invention;
FIG. 4 is a schematic view of the driving mechanism of the present invention;
FIG. 5 is a schematic view of the bracket structure of the present invention.
In the figure: 1. a support mechanism; 101. a support chassis; 102. a base plate bracket; 103. supporting the guide rod; 104. a moving wheel; 105. a support plate; 106. a support bracket; 107. a first square frame; 108. connecting the supporting plate; 109. a folding frame; 110. a first connecting plate; 111. i-shaped steel; 112. a strip-shaped support steel frame; 113. a connecting frame; 114. an electric hydraulic cylinder; 115. an electric telescopic rod; 2. a traction lifting mechanism; 201. a traction base; 202. a telescopic pressure cylinder; 203. a second connecting plate; 204. a support frame; 205. an elastic support box; 3. an adjustable height limiting mechanism; 301. a side wall steel frame; 302. a second square frame; 303. a clamping plate; 304. a clamping groove; 305. a steel frame is pulled; 306. a lifting frame; 4. a drive mechanism; 401. a bracket; 402. the motor is driven.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-5, the present invention provides the following technical solutions: the utility model provides a limit for height device with adjustable bridge construction usefulness, including supporting mechanism 1, supporting mechanism 1 includes supports fixed support chassis 101 with ground, the equal vertical support installation in the top both sides side of support chassis 101 is equipped with bottom plate support 102, the equal vertical fixed mounting in the top both sides side of bottom plate support 102 is equipped with support guide arm 103, the equal fixed mounting in the bottom both sides side of support chassis 101 supports the wheel 104, the wheel body that removes wheel 104 is the gasbag wheel, the equal fixed mounting in the top both sides side of removing wheel 104 is equipped with layer board 105, the top horizontal installation of layer board 105 is equipped with support bracket 106, the equal slope installation in both sides of support bracket 106 is equipped with first square frame 107, the equal fixed mounting in one end of first square frame 107 is equipped with connection supporting plate 108, the bottom both sides of connection supporting plate 108 all are equipped with folding leg 109 through hinge joint, the bottom of folding leg 109 is fixed with the bottom sprag of support bracket 106.
In the daily use, it is fixed to conveniently play good support to the support chassis 101 of first part through the supporting mechanism 1 that is equipped with, the bottom plate support 102 that is equipped with conveniently plays bottom plate support 102 in the use, the folding leg 109 and the hinge of adoption are convenient to play good tight articulated effect of clamp to the connection layer board 108 that the top was equipped with, the support bracket 106 that is equipped with is as upper part effort, when supporting the bridge of upper part, the accessible is equipped with connection layer board 108 and folding leg 109 can play good articulated effect of supporting.
In this embodiment: the installation of the bottom middle part fixed bolster of supporting chassis 101 is equipped with first connecting plate 110, the equal vertical installation in four edges of first connecting plate 110 is equipped with I-shaped steel 111, the installation of the top middle part fixed bolster of I-shaped steel 111 is equipped with the bar and supports steelframe 112, the equal fixed mounting in four edges in top of bar support steelframe 112 is equipped with but height-adjusting's link 113, the equal fixed bolster installation in top of link 113 is equipped with the protection frame, the equal fixed mounting in one end of protection frame is equipped with the box.
In daily use, can play the effect of good firm support to the I-shaped support frame that the top was equipped with through first connecting plate 110 and the I-shaped steel 111 that are equipped with, at the in-process that erects the bridge of top, conveniently play the tight effect of good support clamp with the top of bridge, support steelframe 112 and then make things convenient for the user of use to play the effect of good dispersion with the effort of top support through the bar that is equipped with.
In this embodiment: the equal vertical support installation in four edges in top of support bracket 106 is equipped with electric hydraulic cylinder 114, the equal fixed stay installation in top of electric hydraulic cylinder 114 is equipped with electric telescopic handle 115, electric telescopic handle 115's top fixed stay installation is equipped with pulls lifting mechanism 2, pull lifting mechanism 2 include support fixed pull base 201 with supporting mechanism 1, the lateral wall fixed surface that pulls base 201 supports the installation and is equipped with flexible jar 202 that presses, the top fixed stay installation of jar 202 that presses that stretches out and draws back is equipped with second connecting plate 203, threaded mounting hole has all been seted up to four edges in top of second connecting plate 203.
In daily use, the electric hydraulic cylinder 114 through being equipped with is convenient when using, switch on electric hydraulic cylinder 114, can realize playing good support control's effect to flexible pressure cylinder 202 at the in-process of switching on, the second connecting plate 203 that is equipped with is convenient to be connected the second connecting plate 203 that is equipped with the top when using, under the connection effect of second connecting plate 203, and then realized playing good dispersion support's purpose effect to the bridge of top, the second connecting plate 203 that is equipped with the top through the screw mounting hole that is equipped with is firm and is supported, thereby the support efficiency to second connecting plate 203 has been improved.
In this embodiment: the top fixed stay installation of second connecting plate 203 is equipped with support frame 204, and square fluting has been seted up at the middle part of support frame 204, and the equal fixed stay installation in square fluting's inside is equipped with elasticity supporting box 205, and the equal fixed mounting in inside of elasticity supporting box 205 is equipped with the electric power jar, and the output of electric power jar all supports fixedly with second connecting plate 203 that the lateral wall was equipped with.
In daily use, the supporting frame 204 through being equipped with conveniently plays good support fixed effect to this box, and the electric power jar that is equipped with conveniently plays good support fixed connection with the top of this electric power jar in the use, and the elasticity supporting box 205 that is equipped with conveniently stabilizes the purpose of supporting with this electric power jar in the use.
In this embodiment: the top fixed stay installation of second connecting plate 203 is equipped with adjustable limit for height mechanism 3, and adjustable limit for height mechanism 3 includes and supports fixed lateral wall steelframe 301 with elasticity supporting box 205, and lateral wall steelframe 301 includes and supports fixed lateral wall steelframe 301 with the bottom plate, and the equal fixed mounting in four edges of lateral wall steelframe 301 is equipped with the square frame 302 of second.
In the daily use, the lateral wall steelframe 301 and the square frame 302 of second through being equipped with are convenient at the in-process to the bridge construction, play the effect of good firm support to the bridge floor of bridge, have realized the effect of the firm support to the square frame 302 of second, and the lateral wall steelframe 301 that is equipped with conveniently carries out the circular telegram control to the support frame 204 of first half to the firm support connection to the square frame 302 of second has been realized.
In this embodiment: the installation of the lateral wall middle part fixed stay of lateral wall steelframe 301 is equipped with clamp plate 303, equal fixed mounting is equipped with between the lateral wall of clamp plate 303 and presss from both sides tight groove 304, the installation of the equal fixed stay in four edges of clamp groove 304 is equipped with pulls steelframe 305, the equal fixed mounting in one side of pulling steelframe 305 is equipped with the atress board, the equal fixed mounting in the back of both sides atress board is equipped with and lifts frame 306, the bottom fixed stay installation of lifting frame 306 is equipped with gear drive mechanism 4.
The traction steel frame 305 is conveniently supported and fixed well in the daily use process through the arranged clamping plate 303 and the clamping groove 304, the traction steel frame 305 with the side wall arranged in the daily use process is conveniently supported and fixed well through the arranged clamping plate 303, and the arranged driving is used for driving the traction steel frame in the driving process.
In this embodiment: the gear driving mechanism 4 comprises a protective support which is fixedly supported by a supporting base plate, a bracket 401 is arranged at one end of the protective support in a fixed supporting mode, a protective plate is arranged at one end of the bracket 401 in a fixed mode, a driving motor 402 is arranged at the surface of the protective plate in a fixed installing mode, and the output end of the driving motor 402 is fixedly supported by a clamping plate 303.
In daily use, through the protective bracket who is equipped with, conveniently play the effect of good firm support to the device in daily use, the guard plate that is equipped with supports the protection with this gear drive mechanism 4 in the use.
In this embodiment: the bottom of the movable wheel 104 is fixedly provided with a protective wheel motor, and the output end of the protective wheel motor is in transmission connection with one of the movable wheels 104.
In daily use, through the protection wheel motor that is equipped with, conveniently play good support driven effect to removing wheel 104, the removal wheel 104 that is equipped with can play good support connected effect to this protection wheel motor in daily use.
In this embodiment: the one end fixed mounting of electric hydraulic cylinder 114 is equipped with the base, and the one end fixed mounting of base is equipped with square groove, and the inside in square groove is all installed and is equipped with fastening screw, and fastening screw's one end installation is equipped with square board.
In the daily use process, the base is arranged to play a good role in stably supporting.
In this embodiment: the middle part fixed mounting that supports chassis 101 is equipped with the PLC controller, and electric hydraulic cylinder 114, electric telescopic handle 115, flexible jar 202, electric hydraulic cylinder and protection wheel motor all with PLC controller electric connection, PLC controller and external power supply electric connection.
The PLC controller is arranged to conveniently achieve good automatic control effects on different instruments.
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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. 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 (4)
1. The adjustable height limiting device for bridge construction comprises a supporting mechanism (1) and is characterized in that the supporting mechanism (1) comprises a supporting bottom frame (101) fixed with ground support, bottom plate supports (102) are vertically supported and installed on two sides of the top of the supporting bottom frame (101), supporting guide rods (103) are vertically fixedly installed on two sides of the top of each bottom plate support (102), moving wheels (104) are fixedly supported and installed on two sides of the bottom of the supporting bottom frame (101), wheel bodies of the moving wheels (104) are air bag wheels, supporting plates (105) are fixedly supported and installed on two sides of the top of the moving wheels (104), supporting brackets (106) are transversely installed on the tops of the supporting plates (105), first square frames (107) are obliquely installed on two sides of the supporting brackets (106), and connecting supporting plates (108) are fixedly installed on one ends of the first square frames (107), folding frames (109) are hinged to two sides of the bottom of the connecting supporting plate (108) through hinges, and the bottom ends of the folding frames (109) are supported and fixed with the bottom of the supporting bracket (106);
a first connecting plate (110) is fixedly supported and arranged in the middle of the bottom end of the supporting bottom frame (101), I-shaped steel (111) is vertically arranged at four corners of the first connecting plate (110), a strip-shaped supporting steel frame (112) is fixedly supported and arranged in the middle of the top end of the I-shaped steel (111), connecting frames (113) with adjustable heights are fixedly arranged at four corners of the top of the strip-shaped supporting steel frame (112), a protective frame is fixedly supported and arranged at the top end of each connecting frame (113), and a box body is fixedly arranged at one end of each protective frame;
four corners at the top of the support bracket (106) are vertically supported and provided with electric hydraulic cylinders (114), the top ends of the electric hydraulic cylinders (114) are fixedly supported and provided with electric telescopic rods (115), the top end of each electric telescopic rod (115) is fixedly supported and provided with a traction lifting mechanism (2), each traction lifting mechanism (2) comprises a traction base (201) which is fixedly supported with the support mechanism (1), a telescopic pressure cylinder (202) is fixedly supported and provided on the surface of the side wall of the traction base (201), a second connecting plate (203) is fixedly supported and provided at the top end of each telescopic pressure cylinder (202), and threaded mounting holes are formed in four corners at the top of the second connecting plate (203);
a support frame (204) is fixedly supported and arranged at the top of the second connecting plate (203), a square groove is formed in the middle of the support frame (204), elastic support boxes (205) are fixedly supported and arranged inside the square groove, electric power cylinders are fixedly arranged inside the elastic support boxes (205), and the output ends of the electric power cylinders are fixedly supported and fixed with the second connecting plate (203) arranged on the side wall;
the adjustable height limiting mechanism (3) is arranged on the top of the second connecting plate (203) in a fixed supporting mode, the adjustable height limiting mechanism (3) comprises a lateral wall steel frame (301) which is fixedly supported with the elastic supporting box (205), the lateral wall steel frame (301) comprises a lateral wall steel frame (301) which is fixedly supported with the bottom plate, a second square frame (302) is arranged at each of four corners of the lateral wall steel frame (301), a clamping plate (303) is arranged at the middle of the lateral wall steel frame (301) in a fixed supporting mode, a clamping groove (304) is arranged between the lateral walls of the clamping plate (303) in a fixed supporting mode, a traction steel frame (305) is arranged at each of the four corners of the clamping groove (304) in a fixed supporting mode, a stress plate is arranged at each of one side of the traction steel frame (305), and a supporting frame (306) is arranged at each of the back of the stress plate in a fixed supporting mode, the bottom fixed bolster installation of lifting frame (306) is equipped with gear drive mechanism (4), gear drive mechanism (4) include with the supporting baseplate support fixed protective bracket, the one end fixed bolster installation of protective bracket is equipped with bracket (401), the equal fixed mounting of one end of bracket (401) is equipped with the guard plate, the fixed surface installation of guard plate is equipped with driving motor (402), the output and the clamp plate (303) of driving motor (402) support fixedly.
2. The adjustable height limiting device for bridge construction according to claim 1, wherein: the bottom of the movable wheel (104) is fixedly provided with a protective wheel motor, and the output end of the protective wheel motor is in transmission connection with one of the movable wheels (104).
3. The adjustable height limiting device for bridge construction according to claim 1, wherein: the one end fixed mounting of electric hydraulic cylinder (114) is equipped with the base, the one end fixed mounting of base is equipped with square groove, the inside in square groove is all installed and is equipped with fastening screw, fastening screw's one end installation is equipped with square board.
4. The adjustable height limiting device for bridge construction according to claim 3, wherein: the middle part fixed mounting of supporting chassis (101) is equipped with the PLC controller, electric hydraulic cylinder (114), electric telescopic handle (115), flexible pressure cylinder (202), electric pressure cylinder and protection wheel motor all with PLC controller electric connection, PLC controller and external power source electric connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011198830.1A CN112281670B (en) | 2020-10-31 | 2020-10-31 | Adjustable height limiting device for bridge construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011198830.1A CN112281670B (en) | 2020-10-31 | 2020-10-31 | Adjustable height limiting device for bridge construction |
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| Publication Number | Publication Date |
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| CN112281670A CN112281670A (en) | 2021-01-29 |
| CN112281670B true CN112281670B (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011198830.1A Active CN112281670B (en) | 2020-10-31 | 2020-10-31 | Adjustable height limiting device for bridge construction |
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| CN (1) | CN112281670B (en) |
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| CN103835527A (en) * | 2014-03-18 | 2014-06-04 | 中天建设集团有限公司 | Detachable shoring device and application thereof |
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| Publication number | Publication date |
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| CN112281670A (en) | 2021-01-29 |
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