CN113668365A - Adjustable bridge support - Google Patents
Adjustable bridge support Download PDFInfo
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- CN113668365A CN113668365A CN202110945352.4A CN202110945352A CN113668365A CN 113668365 A CN113668365 A CN 113668365A CN 202110945352 A CN202110945352 A CN 202110945352A CN 113668365 A CN113668365 A CN 113668365A
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- 230000000087 stabilizing effect Effects 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 238000009434 installation Methods 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 19
- 230000002349 favourable effect Effects 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 206010040007 Sense of oppression Diseases 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
Abstract
The invention discloses an adjustable bridge support, which comprises a base, wherein an adjusting device is fixedly connected to the middle position of the top of the base, a fixing plate is fixedly connected to the bottom of the adjusting device, connecting sleeves are fixedly connected to the outer walls of the two sides of the fixing plate at the bottom of the adjusting device, a controller is fixedly connected to the middle position of the right side of the bottom of the adjusting device, and a top plate is fixedly connected to the top of the adjusting device. This bridge support with adjustable, the material is deposited on the top-set plate surface of being convenient for, be favorable to cooperating the bearing block to carry out abundant support to it, avoided the device surface to receive the phenomenon that pressure appears the recess, support the piece and can restrict the bottom junction of device, further improved the stability in the device working process, the ground that is favorable to the device during operation to contact is level and smooth, stabilizing ring's setting can be controlled adjustment mechanism, be favorable to alleviateing rocking of device when increasing the height.
Description
Technical Field
The invention relates to the technical field of bridges, in particular to an adjustable bridge support.
Background
The bridge is generally a structure erected on rivers, lakes and seas to enable vehicles, pedestrians and the like to smoothly pass, in order to adapt to the modern high-speed developed traffic industry, the bridge is also extended to be a building which spans mountain edges, unfavorable geology or meets other traffic requirements and enables traffic to be more convenient, a temporary support for building the bridge is an important and indispensable ring, in the erection of prefabricated box girders and T-shaped girders, the temporary support is firstly arranged at the top of a pier, then the prefabricated box girders and the T-shaped girders are arranged on the temporary support, and after procedures such as wet joints, wet hinges, negative bending moment tensioning, grouting and the like are completed, the temporary support is dismantled, and the system conversion is completed.
According to the bridge support disclosed by the Chinese patent No. CN111979915A, the length of the bottom supporting rod can be adjusted, and the length of the bottom supporting rod can be adjusted to adapt to various spans among bearing platforms; further, because the body frame body is the enclosed construction, the body frame body can change the shape and lock along with the length adjustment of bottom sprag pole, and simple structure is convenient for build, and construction period is short, but easily takes place the dead phenomenon of card under abominable operational environment, easily appears the slope when bearing too big gravity, leads to appearing the atress unbalance and makes the device be difficult for carrying out the adjustment of position, influences work efficiency.
In conclusion, the phenomenon of blocking easily occurs under the severe working environment, the inclination easily occurs when the gravity is too large, the unbalance stress is caused, the position of the device is not easily adjusted, and the working efficiency is affected.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an adjustable bridge support, which solves the problems that the device is easy to be blocked in a severe working environment, is easy to incline when bearing excessive gravity, is unbalanced in stress, is difficult to adjust the position and affects the working efficiency.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a bridge beam supports with adjustable, includes the base, the top intermediate position fixedly connected with adjusting device of base, adjusting device's bottom fixedly connected with fixed plate, adjusting device's bottom is located the equal fixedly connected with connecting sleeve of fixed plate both sides outer wall, the inside that the base just extended to the base is run through to connecting sleeve's bottom, adjusting device's bottom right side intermediate position fixedly connected with controller, adjusting device's top fixedly connected with top board.
Preferably, adjusting device includes stabilizing mean, stabilizing mean's bottom both sides fixedly connected with fastening frame, stabilizing mean's top both sides are provided with adjusting mechanism, the equal fixedly connected with in adjusting mechanism's bottom both sides supports the piece, adjusting mechanism keeps away from stabilizing mean's position fixedly connected with stabilizing ring, adjusting mechanism's top intermediate position fixedly connected with bearing block, through a plurality of adjusting mechanism zonulae occludens that set up between two liang, avoided the device surface to receive the phenomenon that the recess appears in pressure, further improved the stability in the device working process.
Preferably, adjustment mechanism's component one includes the support frame, the top fixedly connected with erection column of support frame, the inside that the support frame just extended to the support frame is run through to the bottom of erection column, the bottom fixedly connected with fixed floor that the both sides outer wall top of support frame is located the erection column, the middle part of fixed floor is provided with the extension bar, the fixed floor be close to the position fixedly connected with balance post of extension bar, through extension bar and balance post that set up on the fixed floor, can effectual increase device's area of contact, be favorable to guaranteeing that the device can alleviate rocking of device when removing the regulation, reduce the wearing and tearing of device.
Preferably, stabilizing mean's component one is including stabilizing the seat, the top intermediate position of stabilizing the seat is provided with the axis of rotation, the both ends of axis of rotation are provided with the fly leaf, the both ends of connecting axle run through the fly leaf, the surface of axis of rotation is located the both sides fixedly connected with contact plate of fly leaf, the top of stabilizing the seat is located the both sides of axis of rotation and all is provided with the connecting plate, makes the contact position of contact plate adjust through the rotation of axis of rotation on the fly leaf, has avoided the connecting plate can incline along with the device, the damage on effectual reduction device surface.
Preferably, adjustment mechanism's component two includes the alignment jig, the top of alignment jig is provided with the self-adaptation board, the middle part both sides outer wall of alignment jig all is provided with the auxiliary frame, the middle part fixedly connected with loading board of auxiliary frame, one side bottom intermediate position that the auxiliary frame was kept away from to the alignment jig is provided with the regulation fixed column, the one end that the regulation fixed column is close to the auxiliary frame runs through the alignment jig and extends to the inside of alignment jig, can carry out the adjustment that does not influence the micro-position of work to the extrusion force that the position of contact received through the self-adaptation board, adjusts the fixed column and mutually supports can increase the fixed of device with the alignment jig, and then shortens the process time of device.
Preferably, the two members of the stabilizing mechanism comprise a bottom plate, a connecting piece is fixedly connected to the bottom of the bottom plate, a guide frame is arranged on the outer wall of the right side of the bottom plate, push blocks are fixedly connected to the bottoms of the inner walls of the two sides of the bottom plate, auxiliary plates are fixedly connected to the inner walls of the two sides of the bottom plate, which are located on the two sides of the push blocks, and the bottom of the guide frame is in contact with the device after the guide frame is fixed through the connecting piece, so that the size of the device is reduced, and the device is effectively prevented from being jammed in the moving process.
Preferably, the top of the auxiliary plate penetrates through the bottom plate and extends to the outside of the bottom plate.
Preferably, the outer walls of the two sides of the fixing rib plate penetrate through the support frame and extend to the inside of the support frame.
Preferably, both ends of the middle connecting rod penetrate through the fixing rib plate and extend to the inside of the fixing rib plate.
(III) advantageous effects
The invention provides an adjustable bridge support. The method has the following beneficial effects:
(one), this adjustable bridge support, the connecting sleeve has been set up, the top board, the fastening frame, adjustment mechanism, support the piece, when putting of material is carried out at the top of device, the connecting sleeve can carry out the fixed of bottom to the device, thereby be convenient for the top board surface deposit the material, and a plurality of adjustment mechanism that set up be two liang between zonulae occludens, be favorable to cooperating the bearing block to carry out abundant support to it, the phenomenon that the recess appears in the device surface receiving pressure has been avoided, support the piece and can restrict the bottom junction of device, the stability in the device working process has further been improved, be favorable to the ground that the device during operation contacted level and smooth, stabilizing ring's setting can be controlled adjustment mechanism, be favorable to alleviateing rocking of device when increasing the height.
(II), this bridge support with adjustable, through fixing under the atress the condition at the device, the ejector pad can cooperate with the accessory plate, make the ejector pad in the in-process adjustment of removal and the contact position of accessory plate, thereby the phenomenon of device position adjustment has been realized, the bottom of connecting piece guide frame can contact with the device after fixed, thereby reduce the volume of device, the condition of the too big difficult placing of volume has been avoided appearing in the device, thereby the use of device has been improved, effectual prevention device appears blocking in the removal in-process.
The adjustable bridge support has the advantages that the self-adaptive plate can adjust the trace position without affecting the work through the extrusion force received by the contact position under the condition of adjusting the device without affecting the work, the fixing of the device can be increased by adjusting the mutual matching of the fixed column and the adjusting frame, the bearing plate can move when the bearing plate is adjusted by the auxiliary frame, the processing time of the device is further shortened, the clamping of the device is effectively avoided, and the application range of the device is enlarged.
(IV), this bridge beam supports with adjustable, the extrusion of ejector pad and auxiliary plate can be arrived through the bottom of alignment jig to under the promotion of ejector pad, the position of alignment jig can carry out the removal of horizontal direction thereupon, avoided the device to appear removing the condition that one side stops motionless in-process, be favorable to guaranteeing that inside fixed reduces the wearing and tearing that the device removed the in-process and received simultaneously, and the alignment jig highly carries out area of contact's regulation along with the alignment jig, prevent the phenomenon that the alignment jig blockked the alignment jig and go up and down that appears.
(five), this bridge beam supports with adjustable, when receiving the oppression of gravity in the course of the work, the connecting plate can carry out the contact fixation to the device, it reduces the inside condition that rocks to appear when the increase device carries out the area, the rotation of axis of rotation on the fly leaf makes the contact position of contact plate adjust, be convenient for carry out micro-support to the connecting plate, avoided the connecting plate can slope along with the device, the damage on effectual reduction device surface, and then the intensity of connecting plate self has been improved, the life of device has further been prolonged.
(VI), this bridge beam supports with adjustable, through under the condition that carries out height control, extension bar and balance post in setting up on the fixed floor, area of contact that can effectual increase device is favorable to guaranteeing that the device can alleviate rocking of device when removing the regulation, the bottom diameter of support frame is big, the top diameter is little, thereby the area of contact of effectual assurance bottom, the frictional force of the bottom contact surface of further increase device, the surface of erection column has the joint groove, be favorable to playing the guard action, reduce the wearing and tearing of device.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic view of the adjusting device according to the present invention;
FIG. 3 is a schematic structural diagram of a first component of the adjustment mechanism of the present invention;
FIG. 4 is a schematic structural view of a first component of the stabilizing mechanism of the present invention;
FIG. 5 is a schematic structural diagram of a second member of the adjusting mechanism of the present invention;
FIG. 6 is a schematic structural diagram of a second component of the stabilizing mechanism of the present invention.
In the figure: the device comprises a base 1, a connecting sleeve 2, a fixing plate 3, a controller 4, an adjusting device 5, a bearing block 51, a stabilizing ring 52, an adjusting mechanism 53, a supporting frame 531, a fixing rib 532, a balancing column 533, a middle connecting rod 534, a mounting column 535, an adjusting frame d1, an adjusting fixing column d2, an auxiliary frame d3, a bearing plate d4, a self-adaptive plate d5, a stabilizing mechanism 54, a stabilizing seat 541, a contact plate 542, a connecting plate 543, a rotating shaft 544, a movable plate 545, a t1 bottom plate, a t2 connecting piece, a t3 pushing block, a t4 auxiliary plate, a t5 guide frame, a 55 abutting block, a 56 fastening frame and a 6 top plate.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a bridge beam supports with adjustable, including base 1, base 1's top intermediate position fixedly connected with adjusting device 5, adjusting device 5's bottom fixedly connected with fixed plate 3, adjusting device 5's bottom is located the equal fixedly connected with connecting sleeve 2 of 3 both sides outer walls of fixed plate, connecting sleeve 2's bottom runs through base 1 and extends to base 1's inside, adjusting device 5's bottom right side intermediate position fixedly connected with controller 4, adjusting device 5's top fixedly connected with top board 6.
Wherein, adjusting device 5 includes stabilizing mean 54, stabilizing mean 54's bottom both sides fixedly connected with fastening frame 56, stabilizing mean 54's top both sides are provided with adjustment mechanism 53, the equal fixedly connected with in bottom both sides of adjustment mechanism 53 supports piece 55, the position fixedly connected with stabilizing ring 52 that stabilizing mean 54 was kept away from to adjustment mechanism 53, the top intermediate position fixedly connected with bearing block 51 of adjustment mechanism 53.
During the use, when putting of material is carried out at the top of device, connecting sleeve 2 can carry out the fixed of bottom to the device to the material is deposited on 6 surfaces of top board of being convenient for, is favorable to cooperating bearing block 51 to carry out abundant support to it, has avoided the device surface to receive the phenomenon that pressure appears the recess, has further improved the stability in the device working process, is favorable to the ground that the device during operation contacted level and smooth, is favorable to alleviateing rocking of device when increasing the height.
Example two:
referring to fig. 1-4, on the basis of the first embodiment, the present invention provides a technical solution: the first component of the adjusting mechanism 53 includes a support frame 531, a mounting column 535 is fixedly connected to the top of the support frame 531, the bottom end of the mounting column 535 penetrates through the support frame 531 and extends to the inside of the support frame 531, a fixed rib plate 532 is fixedly connected to the top of the outer walls of two sides of the support frame 531 and is located at the bottom of the mounting column 535, a middle connecting rod 534 is arranged in the middle of the fixed rib plate 532, and a balance column 533 is fixedly connected to the position, close to the middle connecting rod 534, of the fixed rib plate 532.
The first component of the stabilizing mechanism 54 includes a stabilizing base 541, a rotating shaft 544 is disposed at a middle position of a top of the stabilizing base 541, movable plates 545 are disposed at two ends of the rotating shaft 544, two ends of the connecting shaft 544 penetrate the movable plates 545, contact plates 542 are fixedly connected to outer surfaces of the rotating shaft 544 at two sides of the movable plates 545, and connecting plates 543 are disposed at two sides of the rotating shaft 544 at the top of the stabilizing base 541.
During the use, when receiving the oppression of gravity in the course of the work, connecting plate 543 can carry out the contact to the device and fix, reduces the inside condition that rocks that appears when the increase device carries out the area, effectual reduction device surface's damage, the bottom diameter of support frame 531 is big, and the top diameter is little, further increases the frictional force of the bottom contact surface of device, and the surface of erection column 535 has the joint groove, is favorable to playing the guard action, reduces the wearing and tearing of device.
Example three:
referring to fig. 1-6, on the basis of the first embodiment and the second embodiment, the present invention provides a technical solution: the second component of the adjusting mechanism 53 includes an adjusting frame d1, the top of the adjusting frame d1 is provided with an adaptive plate d5, the outer walls of two sides of the middle of the adjusting frame d1 are both provided with an auxiliary frame d3, the middle of the auxiliary frame d3 is fixedly connected with a bearing plate d4, an adjusting fixing column d2 is arranged at the middle position of the bottom of one side of the adjusting frame d1, which is far away from the auxiliary frame d3, and one end of the adjusting fixing column d2, which is close to the auxiliary frame d3, penetrates through the adjusting frame d1 and extends to the inside of the adjusting frame d 1.
The second component of the stabilizing mechanism 54 includes a bottom plate t1, a connecting member t2 is fixedly connected to the bottom of the bottom plate t1, a guide frame t5 is arranged on the outer wall of the right side of the bottom plate t1, a push block t3 is fixedly connected to the bottom of the inner walls of the two sides of the bottom plate t1, and auxiliary plates t4 are fixedly connected to the inner walls of the two sides of the bottom plate t3 on the two sides of the push block t 3.
During the use, under the device carries out the fixed atress condition, ejector pad t3 can cooperate with accessory plate t4, realized the phenomenon of device position adjustment, avoided the device to appear the too big difficult condition of placing of volume, effectual prevention device appears blocking in the removal in-process, during the position removal when loading board d4 can receive accessory frame d3 regulation, the effectual dead condition of card of device emergence of having avoided, the phenomenon that accessory frame d3 blocks that alignment jig d1 goes up and down is prevented appearing.
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. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a bridge beam supports with adjustable, includes base (1), its characterized in that: the utility model discloses a base, including base (1), the top intermediate position fixedly connected with adjusting device (5) of base (1), the bottom fixedly connected with fixed plate (3) of adjusting device (5), the bottom of adjusting device (5) is located the equal fixedly connected with connecting sleeve (2) of fixed plate (3) both sides outer wall, the inside that base (1) and base (1) were just extended is run through to the bottom of connecting sleeve (2), the bottom right side intermediate position fixedly connected with controller (4) of adjusting device (5), the top fixedly connected with top of adjusting device (5) is put board (6).
2. The adjustable bridge support of claim 1, wherein: adjusting device (5) includes stabilizing mean (54), bottom both sides fixedly connected with fastening frame (56) of stabilizing mean (54), the top both sides of stabilizing mean (54) are provided with adjusting means (53), the equal fixedly connected with in bottom both sides of adjusting means (53) supports piece (55), the position fixedly connected with stabilizing ring (52) of stabilizing mean (54) are kept away from in adjusting means (53), the top intermediate position fixedly connected with bearing block (51) of adjusting means (53).
3. The adjustable bridge support of claim 2, wherein: the first component of the adjusting mechanism (53) comprises a support frame (531), the top of the support frame (531) is fixedly connected with an installation column (535), the bottom end of the installation column (535) penetrates through the support frame (531) and extends to the inside of the support frame (531), the top of the outer walls of the two sides of the support frame (531) is fixedly connected with a fixed rib plate (532) at the bottom of the installation column (535), the middle of the fixed rib plate (532) is provided with a middle extension rod (534), and the position of the fixed rib plate (532) close to the middle extension rod (534) is fixedly connected with a balance column (533).
4. The adjustable bridge support of claim 2, wherein: the first component of the stabilizing mechanism (54) comprises a stabilizing seat (541), a rotating shaft (544) is arranged in the middle of the top of the stabilizing seat (541), movable plates (545) are arranged at two ends of the rotating shaft (544), two ends of the connecting shaft (544) penetrate through the movable plates (545), contact plates (542) are fixedly connected to two sides, located on the movable plates (545), of the outer surface of the rotating shaft (544), and connecting plates (543) are arranged on two sides, located on the rotating shaft (544), of the top of the stabilizing seat (541).
5. The adjustable bridge support of claim 2, wherein: the second component of the adjusting mechanism (53) comprises an adjusting frame (d1), the top of the adjusting frame (d1) is provided with a self-adaptive plate (d5), the outer walls of two sides of the middle of the adjusting frame (d1) are provided with auxiliary frames (d3), the middle of the auxiliary frame (d3) is fixedly connected with a bearing plate (d4), the middle of the bottom of one side of the adjusting frame (d1) far away from the auxiliary frame (d3) is provided with an adjusting fixing column (d2), and one end, close to the auxiliary frame (d3), of the adjusting fixing column (d2) penetrates through the adjusting frame (d1) and extends to the inside of the adjusting frame (d 1).
6. The adjustable bridge support of claim 2, wherein: two component of stabilizing mean (54) are including putting board (t1) at the bottom, the bottom fixedly connected with connecting piece (t2) of putting board (t1) at the bottom, the right side outer wall of putting board (t1) at the bottom is provided with system guide frame (t5), the both sides inner wall bottom fixedly connected with ejector pad (t3) of putting board (t1) at the bottom, the both sides inner wall of putting board (t3) at the both sides fixedly connected with accessory plate (t4) of ejector pad (t3) at the bottom.
7. The adjustable bridge support of claim 6, wherein: the top of the auxiliary plate (t4) penetrates through the bottom plate (t1) and extends to the outside of the bottom plate (t 1).
8. The adjustable bridge support of claim 3, wherein: the outer walls of the two sides of the fixed rib plate (532) penetrate through the support frame (531) and extend to the inner part of the support frame (531).
9. The adjustable bridge support of claim 2, wherein: two ends of the middle connecting rod (534) penetrate through the fixed ribbed plate (532) and extend to the inside of the fixed ribbed plate (532).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110945352.4A CN113668365A (en) | 2021-08-17 | 2021-08-17 | Adjustable bridge support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110945352.4A CN113668365A (en) | 2021-08-17 | 2021-08-17 | Adjustable bridge support |
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| CN113668365A true CN113668365A (en) | 2021-11-19 |
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| CN109778715A (en) * | 2019-03-25 | 2019-05-21 | 中冶建工集团有限公司 | Assembled support platform and its installation and removal method |
| CN210563490U (en) * | 2019-08-26 | 2020-05-19 | 中国有色金属工业第六冶金建设有限公司 | Plate clamping device |
| CN211285299U (en) * | 2019-11-30 | 2020-08-18 | 丁印成 | Protective bracket for bridge construction |
| CN212052263U (en) * | 2020-04-23 | 2020-12-01 | 中铁二十二局集团第二工程有限公司 | Steel truss assembly for overpass |
| CN212613814U (en) * | 2020-05-22 | 2021-02-26 | 永康市天睿建设有限公司 | High-efficient type reinforcing bar binding apparatus for civil engineering |
| CN111691688A (en) * | 2020-06-16 | 2020-09-22 | 中国建筑股份有限公司 | Jacking supporting device for building construction and using method |
| CN213062992U (en) * | 2020-06-16 | 2021-04-27 | 王培华 | Possesses assembled crossbeam installation that prevents crossbeam skew and uses positioner |
| CN213233158U (en) * | 2020-06-29 | 2021-05-18 | 中铁十局集团第八工程有限公司 | Swivel beam arrangement for crossing compound routes |
| CN213013913U (en) * | 2020-07-29 | 2021-04-20 | 龙建路桥股份有限公司 | Bridge maintenance workbench |
| CN213557533U (en) * | 2020-11-06 | 2021-06-29 | 盐城长源滤袋有限公司 | Automatic cutting device for dust removal filter bag |
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Application publication date: 20211119 |