CN112706789A - Prefabricated square culvert handling device - Google Patents
Prefabricated square culvert handling device Download PDFInfo
- Publication number
- CN112706789A CN112706789A CN202011531918.0A CN202011531918A CN112706789A CN 112706789 A CN112706789 A CN 112706789A CN 202011531918 A CN202011531918 A CN 202011531918A CN 112706789 A CN112706789 A CN 112706789A
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- bracket
- telescopic rod
- support
- square culvert
- carrying mechanism
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
Abstract
The invention relates to a prefabricated square culvert conveying device which comprises a first conveying mechanism and a second conveying mechanism, wherein the second conveying mechanism is arranged on one side of the first conveying mechanism and is used for bearing a square culvert on the first conveying mechanism; the first carrying mechanism comprises two first turnover assemblies which are symmetrically arranged, and the second carrying mechanism is positioned between the two first turnover assemblies; the first overturning assembly comprises a first bracket, and the first bracket comprises two connecting rods arranged vertically; the first support is hinged at the corner of the first bracket, the middle parts of the outer sides of the first two connecting rods are hinged with a first telescopic rod, and one end, far away from the first bracket, of the first telescopic rod is hinged with a second support; the second carrying mechanism comprises two second turnover assemblies which are symmetrically arranged, each second turnover assembly comprises a second bracket, and each second bracket comprises two connecting rods which are vertically arranged and connected, so that the second bracket forms an L shape; the middle parts of the two outer sides of the two connecting rods are hinged with a second telescopic rod, and the second telescopic rod is far away from a fourth hinged support at one end of the second bracket.
Description
Technical Field
The invention relates to the field of building construction, in particular to a prefabricated square culvert carrying device.
Background
The laying of underground pipelines is crucial in urban planning, and square culvert splicing and laying are often used for constructing municipal facilities such as urban underground comprehensive pipe outlines, electric power tunnels and the like. The prefabricated square culvert is a box-type pipe culvert which is prefabricated in a factory by using high-strength reinforced concrete and consists of a plurality of square or rectangular sections, so that the famous square culvert is obtained. The production flow generally comprises the steps of pouring concrete between an inner mold and an outer mold of the mold, taking out the mold after the concrete is formed, and arranging the square culvert with the opening facing upwards. The square culvert is often required to be transported to a construction site for use after being formed, and the square culvert is directly transported away by a forklift after being turned for 90 degrees or 180 degrees according to requirements during use so as to meet construction requirements; however, the square culvert after molding is large in size and weight, and the square culvert is difficult to turn over in actual transportation, so that the laying efficiency is reduced.
Disclosure of Invention
The invention aims to provide a prefabricated square culvert conveying device to solve the problems in the background technology.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a prefabricated square culvert conveying device comprises a first conveying mechanism and a second conveying mechanism, wherein the second conveying mechanism is arranged on one side of the first conveying mechanism and used for receiving a square culvert on the first conveying mechanism;
the first carrying mechanism comprises two first turnover assemblies which are symmetrically arranged, and the second carrying mechanism is positioned between the two first turnover assemblies; the first turnover assembly comprises a first bracket, and the first bracket comprises two connecting rods which are vertically arranged and connected, so that the first bracket forms an L shape; the first support is hinged to the corner of the first bracket, the middle parts of the outer sides of the first two connecting rods are hinged to the first telescopic rod, and one end, far away from the first bracket, of the first telescopic rod is hinged to the second support;
the second carrying mechanism comprises two second turnover assemblies which are symmetrically arranged, the two second turnover assemblies are arranged between the two first turnover assemblies, the second turnover assemblies comprise a second bracket, and the second bracket comprises two connecting rods which are vertically arranged and connected, so that the second bracket forms an L shape; a third support is hinged at the corner of the second bracket, the middle parts of the outer sides of the two second connecting rods are hinged with a second telescopic rod, and one end, far away from the second bracket, of the second telescopic rod is hinged with a fourth support;
the first telescopic rod and the second telescopic rod are both connected with a driving assembly, and the driving assembly is used for controlling the extension and the shortening of the first telescopic rod and the second telescopic rod.
As a further improvement of the invention, the device also comprises a pulling mechanism, wherein the pulling mechanism is used for enabling the first carrying mechanism to be close to or far away from the second carrying mechanism, and comprises a guide assembly and a power assembly;
a moving platform is arranged at the lower part of the second carrying mechanism, the two second overturning assemblies are respectively positioned at the left side and the right side of the moving platform, and the third support and the fourth support are both connected with the moving platform;
the guide assembly is located on the lower portion of the moving platform, and the power assembly is arranged on the side wall, close to the first carrying mechanism, of the moving platform.
As a further improvement of the present invention, the guiding assembly includes a plurality of arranged pulleys mounted at the bottom of the mobile platform and a plurality of slide rails disposed at the lower portions of the pulleys, and each slide rail is slidably engaged with one row of the pulleys.
As a further improvement of the invention, the bottom of the mobile platform is provided with a plurality of pulley seats, and the bottom of each pulley seat is provided with two pulleys; the middle part of the sliding rail is provided with a boss which is positioned between the two pulleys on the pulley seat.
As a further improvement of the invention, the power assembly comprises a third telescopic rod, one side of the third telescopic rod is connected with the mobile platform, and the other side of the third telescopic rod is connected with a fifth support; and the fifth support is arranged between the two first turnover assemblies, and the third telescopic rod is connected with the driving assembly.
As a further improvement of the invention, one sides of the two second supports far away from the first support are respectively provided with a first support, and the first support is used for supporting the first bracket when contacting with the first bracket.
As a further improvement of the invention, a second support frame is arranged at the upper part of the mobile platform, the second support frame is positioned on the front side and the rear side of the mobile platform and is matched with the second bracket, and the second support frame is used for supporting the second bracket when contacting with the second bracket.
As a further improvement of the invention, the first telescopic rod and the second telescopic rod are both multi-stage hydraulic rods.
As a further improvement of the invention, the first bracket and the second bracket are both provided with mounting seats, and the first telescopic rod and the second telescopic rod are respectively hinged with the first bracket and the second bracket through the mounting seats.
As a further improvement of the invention, the driving assembly comprises a guide pipe and a hydraulic cylinder connected with the guide pipe, and the guide pipe is respectively connected with the first telescopic rod and the second telescopic rod.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
according to the square culvert conveying device, the first conveying mechanism is arranged to support the square culvert, the upper surface of the square culvert faces upwards, and workers can directly convey the square culvert to be used by using a forklift as required. Because set up bracket one on the first transport mechanism, bracket one corner hinged support one, and the connecting rod one of bracket one both sides all articulates telescopic link one, so the telescopic link of drive bracket one both sides is extended and is shortened and make bracket one can clockwise or anticlockwise rotation, carries out 90 upsets to the square culvert. Meanwhile, the square culvert is also arranged on the second carrying mechanism, under the action of the second bracket and the second telescopic rod, the square culvert continues to rotate by 90 degrees in the same direction as the first carrying mechanism, the square culvert is about to rotate by 180 degrees, the lower surface of the square culvert faces upwards, and workers can carry the square culvert away for utilization.
The drawing mechanism is arranged, the height and the length of the square culvert are also rotated after the square culvert is rotated by 90 degrees for the first time, and the drawing mechanism can draw the second carrying mechanism to be close to or far away from the first carrying mechanism, so that the second bracket is matched with the square culvert rotated by 90 degrees, and the square culvert is prevented from falling when the second bracket rotates due to the fact that the distance between the second connecting rod in the vertical direction of the second bracket and the square culvert is far.
The invention has simple structure, convenient operation and convenient control, can rotate square culverts by 90 degrees or 180 degrees, adapts to the construction use requirement and improves the laying efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the present invention in a square culvert.
Fig. 3 is a schematic perspective view of a second conveyance mechanism and a drawing mechanism according to the present invention.
Fig. 4 is an enlarged view of fig. 3 at a.
Wherein: the device comprises a first overturning component 1, a first bracket 1-1, a first connecting rod 1-2, a first support 1-3, a first telescopic rod 1-4, a second support 1-5, a first support frame 1-6, a second overturning component 2-1, a second bracket 2-2, a second connecting rod 2-2, a third support 2-3, a second telescopic rod 2-4, a guide component 3-1, a pulley 3-1, a slide rail 3-2, a pulley seat 3-3, a boss 3-4, a limiting block 3-5, a power component 4, a third telescopic rod 4-1, a fifth support 4-2, a moving platform 5, a second support frame 5-1 and a mounting seat 6.
Detailed Description
For purposes of clarity and a complete description of the present invention, and the like, in conjunction with the detailed description, it is to be understood that the terms "central," "vertical," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the present invention, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
The prefabricated square culvert conveying device shown in figures 1-4 is characterized in that: the device comprises a first carrying mechanism and a second carrying mechanism, wherein the second carrying mechanism is arranged on one side of the first carrying mechanism and is used for bearing a square culvert on the first carrying mechanism;
the first carrying mechanism comprises two first turnover assemblies 1 which are symmetrically arranged, and the second carrying mechanism is positioned between the two first turnover assemblies 1; each first overturning assembly 1 comprises a first bracket 1-1, and the first bracket 1-1 comprises two connecting rods 1-2 which are vertically arranged and connected, so that the first bracket 1-1 forms an L shape; the middle parts of the outer sides of the two connecting rods I1-2 are hinged with telescopic rods I1-4, and one end, far away from the bracket I1-1, of each telescopic rod I1-4 is hinged with a support II 1-5;
the second carrying mechanism comprises two symmetrically arranged second overturning assemblies 2, the two second overturning assemblies 2 are arranged between the two first overturning assemblies 1, each second overturning assembly 2 comprises a bracket II 2-1, and each bracket II 2-1 comprises two connecting rods II 2-2 which are vertically arranged and connected, so that the bracket II 2-1 forms an L shape; the corner of the second bracket 2-1 is hinged with a second support 2-3, the middle parts of the outer sides of the two connecting rods 2-2 are hinged with a second telescopic rod 2-4, and one end of the second telescopic rod 2-4, which is far away from the second bracket 2-1, is hinged with a fourth support. The left and right sides of the culvert are supported by the two first overturning assemblies 1 and the two second overturning assemblies 2.
The first telescopic rods 1-4 and the second telescopic rods 2-4 are connected with a driving assembly, and the driving assembly is used for controlling the extension and contraction of the first telescopic rods 1-4 and the second telescopic rods 2-4, namely, each first telescopic rod 1-4 and each second telescopic rod 2-4 are connected with the driving assembly. The driving group is arranged according to the structural form of the first telescopic rods 1-4 and the second telescopic rods 2-4, and in the embodiment, the first telescopic rods 1-4 and the second telescopic rods 2-4 are all multi-stage hydraulic rods; the driving assembly comprises a guide pipe and a hydraulic cylinder connected with the guide pipe, the guide pipe is respectively connected with the first telescopic rods 1-4 and the second telescopic rods 2-4, the hydraulic cylinder and valves on the guide pipe are connected with a controller, and the controller is operated to control the extension and contraction of the first telescopic rods 1-4 and the second telescopic rods 2-4.
As shown in fig. 1-2, initially, the driving assembly controls the two telescopic rods two 2-4 at the front side of the second carrying mechanism to shorten, the two telescopic rods two 2-4 at the rear side to lengthen, and the bracket two 2-1 rotates clockwise around the bracket two 2-3 because the bracket two 2-1 is hinged with the bracket two 2-3 until the connecting rod two 2-2 at the front side is parallel to the horizontal plane, and the bracket two 2-1 is in the state shown in fig. 2; the first carrying mechanism and the second carrying mechanism are arranged in the same direction, namely the first connecting rod 1-2 at the front side of the first carrying mechanism is parallel to the horizontal plane. After the square culvert is demoulded by the mould, the square culvert is conveyed to a bracket I1-1 of the first conveying mechanism through a crane and other devices, and the bottom surface and one side surface of the square culvert are respectively contacted with two connecting rods I1-2. And then the driving assembly controls the first telescopic rod 1-4 at the front side of the first carrying mechanism to extend, and the first telescopic rod 1-4 at the rear side to shorten, so that the first bracket 1-1 rotates anticlockwise around the first support 1-3 until the first connecting rod 1-2 at the rear side is parallel to the horizontal plane, namely the square culvert rotates 90 degrees. Because two second upset subassembly 2 locates two between the first upset subassembly 1, the square culvert that overturns after 90 also sets up on second transport mechanism, rotates second transport mechanism at last, makes the telescopic link two 2-4 of rear side shorten on the second transport mechanism, and the telescopic link two 2-4 extension of front side, bracket two 2-1 anticlockwise rotation, and connecting rod two 2-2 and the horizontal plane of rear side are parallel, accomplishes 180 rotations of square culvert, and the lower surface of square culvert upwards sets up, makes things convenient for constructor to carry and use.
In the embodiment, the device further comprises a pulling mechanism for enabling the first conveying mechanism to approach or separate from the second conveying mechanism, wherein the pulling mechanism comprises a guide assembly 3 and a power assembly 4; a moving platform 5 is arranged at the lower part of the second carrying mechanism, the two second turnover assemblies 2 are respectively positioned at the left side and the right side of the moving platform 5, and the second support 2-3 and the fourth support are both connected with the moving platform 5; the guide assembly 3 is located at the lower part of the moving platform 5, and the power assembly 4 is arranged on the side wall of the moving platform 5 close to the first carrying mechanism.
Because the length and the height of the square culvert are different, when the square culvert is transferred from the first carrying mechanism to the second carrying mechanism, if the distance between the horizontal connecting rod II 2-2 and the horizontal connecting rod I1-2 is larger, the distance between the square culvert and the vertical connecting rod II 2-2 is far, the square culvert is easy to drop and damage from the horizontal connecting rod II 2-2 when the bracket II 2-1 rotates anticlockwise, and therefore, the traction mechanism is arranged, the distance between the connecting rod II 2-2 and the connecting rod I1-2 can be adjusted, and the square culvert is suitable for square culverts with different lengths and heights.
The power assembly 4 comprises a telescopic rod III 4-1, one side of the telescopic rod III 4-1 is connected with the moving platform 5, and the other side of the telescopic rod III 4-1 is connected with a support seat V4-2; the support fifth 4-2 is arranged between the two first turnover assemblies 1, and the telescopic rod third 4-1 is connected with the driving assembly. The telescopic rod three 4-1 is also a hydraulic rod and is driven by a hydraulic cylinder. The distance between the movable platform 5 and the support five 4-2 is controlled by controlling the extension and shortening of the telescopic rod three 4-1, the position of the support five 4-2 is fixed, namely the distance between the connecting rod two 2-2 and the connecting rod one 1-2 is adjusted to be suitable for the length of a square culvert, and the use requirement is met.
The guide assembly 3 is used for limiting the moving platform 5 when the moving platform 5 is close to or far away from the support five 4-2. The guide assembly 3 comprises a plurality of arranged pulleys 3-1 arranged at the bottom of the moving platform 5 and a plurality of slide rails 3-2 arranged at the lower parts of the pulleys 3-1, and each slide rail 3-2 is in sliding fit with one row of the pulleys 3-1. A plurality of pulley seats 3-3 are arranged at the bottom of the moving platform 5, and two pulleys 3-1 are arranged at the bottom of each pulley seat 3-3; the middle part of the sliding rail 3-2 is provided with a boss 3-4, and the boss 3-4 is positioned between the two pulleys 3-1 on the pulley seat 3-3. In this embodiment, three slide rails 3-2 are provided, and four pulley seats 3-3 are provided on each slide rail 3-2. When the mobile platform 5 moves relative to the support five 4-2, the pulley 3-1 slides in the slide rail 3-2, so that the mobile platform 5 is prevented from sliding left and right and limited. And the front end and the rear end of the sliding rail 3-2 are respectively provided with a limiting block 3-5.
Further, the first bracket 1-1 and the second bracket 2-1 are both provided with a mounting seat 6, and the first telescopic rod 1-4 and the second telescopic rod 2-4 are hinged with the first bracket 1-1 and the second bracket 2-1 through the mounting seats 6. When one connecting rod I1-2 or one connecting rod II 2-2 is in a horizontal state to support a square culvert, in order to enhance the bearing capacity and stability of the connecting rod I1-2 and the connecting rod II 2-2, one side of each of the two supports II 1-5, which is far away from the support I1-3, is provided with a support I1-6, and the support I1-6 is used for supporting the bracket I1-1 in a contact manner with the bracket I1-1. A second support frame 5-1 is arranged at the upper part of the moving platform 5, and the second support frame 5-1 is positioned on the front side and the rear side of the moving platform 5 and matched with the second bracket 2-1 and is used for supporting the second bracket 2-1 in a contact manner with the second bracket 2-1.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a handling device is contained to prefabricated side, its characterized in that: the device comprises a first carrying mechanism and a second carrying mechanism, wherein the second carrying mechanism is arranged on one side of the first carrying mechanism and is used for bearing a square culvert on the first carrying mechanism;
the first carrying mechanism comprises two first turnover assemblies (1) which are symmetrically arranged, and the second carrying mechanism is positioned between the two first turnover assemblies (1); each first overturning assembly (1) comprises a first bracket (1-1), wherein the first bracket (1-1) comprises two vertically arranged and connected first connecting rods (1-2), so that the first bracket (1-1) forms an L shape; the corners of the first bracket (1-1) are hinged with first supports (1-3), the middle parts of the outer sides of the two first connecting rods (1-2) are hinged with first telescopic rods (1-4), and one ends, far away from the first bracket (1-1), of the first telescopic rods (1-4) are hinged with second supports (1-5);
the second carrying mechanism comprises two symmetrically arranged second overturning assemblies (2), the two second overturning assemblies (2) are arranged between the two first overturning assemblies (1), each second overturning assembly (2) comprises a second bracket (2-1), and the second bracket (2-1) comprises two connecting rods (2-2) which are vertically arranged and connected, so that the second brackets (2-1) form an L shape; a second support (2-3) is hinged at the corner of the second bracket (2-1), the middle parts of the outer sides of the two second connecting rods (2-2) are hinged with a second telescopic rod (2-4), and one end, far away from the second bracket (2-1), of the second telescopic rod (2-4) is hinged with a fourth support;
the first telescopic rod (1-4) and the second telescopic rod (2-4) are both connected with a driving assembly, and the driving assembly is used for controlling the extension and the contraction of the first telescopic rod (1-4) and the second telescopic rod (2-4).
2. The prefabricated square culvert handling device of claim 1, characterized in that: the device also comprises a pulling mechanism used for enabling the first conveying mechanism to approach or separate from the second conveying mechanism, wherein the pulling mechanism comprises a guide assembly (3) and a power assembly (4);
a moving platform (5) is arranged at the lower part of the second carrying mechanism, the two second turnover assemblies (2) are respectively positioned at the left side and the right side of the moving platform (5), and the second support (2-3) and the fourth support are both connected with the moving platform (5);
the guide assembly (3) is located at the lower part of the moving platform (5), and the power assembly (4) is arranged on the side wall, close to the first carrying mechanism, of the moving platform (5).
3. The prefabricated square culvert handling device of claim 2, wherein: the guide assembly (3) comprises a plurality of arranged pulleys (3-1) arranged at the bottom of the moving platform (5) and a plurality of sliding rails (3-2) arranged at the lower part of the pulleys (3-1), and each sliding rail (3-2) is in sliding fit with one row of the pulleys (3-1).
4. A prefabricated square culvert handling device according to claim 3, characterized in that: a plurality of pulley seats (3-3) are arranged at the bottom of the moving platform (5), and two pulleys (3-1) are arranged at the bottom of each pulley seat (3-3); a boss (3-4) is arranged in the middle of the sliding rail (3-2), and the boss (3-4) is located between the two pulleys (3-1) on the pulley seat (3-3).
5. The prefabricated square culvert handling device of claim 2, wherein: the power assembly (4) comprises a third telescopic rod (4-1), one side of the third telescopic rod (4-1) is connected with the moving platform (5), and the other side of the third telescopic rod is connected with a fifth support (4-2); the fifth support (4-2) is arranged between the two first turnover assemblies (1), and the third telescopic rod (4-1) is connected with the driving assembly.
6. The prefabricated square culvert handling device of claim 1, characterized in that: one sides, far away from the first supports (1-3), of the two second supports (1-5) are respectively provided with a first support frame (1-6), and the first support frames (1-6) are used for supporting the first brackets (1-1) when in contact with the first brackets (1-1).
7. The prefabricated square culvert handling device of claim 2, wherein: a second support frame (5-1) is arranged on the upper portion of the moving platform (5), the second support frame (5-1) is located on the front side and the rear side of the moving platform (5) and matched with the second bracket (2-1), and the second support frame (5-1) is used for supporting the second bracket (2-1) when in contact with the second bracket (2-1).
8. The prefabricated square culvert handling device of claim 1, characterized in that: the first telescopic rod (1-4) and the second telescopic rod (2-4) are both multi-stage hydraulic rods.
9. The prefabricated square culvert handling device of claim 1, characterized in that: the first bracket (1-1) and the second bracket (2-1) are respectively provided with a mounting seat (6), and the first telescopic rod (1-4) and the second telescopic rod (2-4) are respectively hinged with the first bracket (1-1) and the second bracket (2-1) through the mounting seats (6).
10. The prefabricated square culvert handling device of claim 8, wherein: the driving assembly comprises a guide pipe and a hydraulic cylinder connected with the guide pipe, and the guide pipe is respectively connected with the first telescopic rod (1-4) and the second telescopic rod (2-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011531918.0A CN112706789B (en) | 2020-12-22 | 2020-12-22 | Prefabricated square culvert handling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011531918.0A CN112706789B (en) | 2020-12-22 | 2020-12-22 | Prefabricated square culvert handling device |
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| Publication Number | Publication Date |
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| CN112706789A true CN112706789A (en) | 2021-04-27 |
| CN112706789B CN112706789B (en) | 2022-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011531918.0A Active CN112706789B (en) | 2020-12-22 | 2020-12-22 | Prefabricated square culvert handling device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11336172A (en) * | 1998-05-29 | 1999-12-07 | Mizutani Kensetsu Kogyo Kk | Block carrying method, and foundation structure for supporting block |
| JP2002088890A (en) * | 2000-09-20 | 2002-03-27 | Mizutani Kensetsu Kogyo Kk | Block carrying method, block carrying truck and block laying foundation structure |
| CN105484292A (en) * | 2016-01-09 | 2016-04-13 | 安徽水利开发股份有限公司 | Pipe gallery box culvert transporting and installing device and installing method thereof |
| CN110528410A (en) * | 2019-08-22 | 2019-12-03 | 中交第二航务工程局有限公司 | The prefabricated equipment for supporting patient with burn of prefabricated assembled box culvert and installation method |
| CN110641565A (en) * | 2019-10-11 | 2020-01-03 | 内蒙古路桥集团有限责任公司 | Box culvert handling tool car |
| CN211872446U (en) * | 2019-12-28 | 2020-11-06 | 临沂市政众信建材有限公司 | A turning device for assembled passageway of crossing street |
-
2020
- 2020-12-22 CN CN202011531918.0A patent/CN112706789B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11336172A (en) * | 1998-05-29 | 1999-12-07 | Mizutani Kensetsu Kogyo Kk | Block carrying method, and foundation structure for supporting block |
| JP2002088890A (en) * | 2000-09-20 | 2002-03-27 | Mizutani Kensetsu Kogyo Kk | Block carrying method, block carrying truck and block laying foundation structure |
| CN105484292A (en) * | 2016-01-09 | 2016-04-13 | 安徽水利开发股份有限公司 | Pipe gallery box culvert transporting and installing device and installing method thereof |
| CN110528410A (en) * | 2019-08-22 | 2019-12-03 | 中交第二航务工程局有限公司 | The prefabricated equipment for supporting patient with burn of prefabricated assembled box culvert and installation method |
| CN110641565A (en) * | 2019-10-11 | 2020-01-03 | 内蒙古路桥集团有限责任公司 | Box culvert handling tool car |
| CN211872446U (en) * | 2019-12-28 | 2020-11-06 | 临沂市政众信建材有限公司 | A turning device for assembled passageway of crossing street |
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| Publication number | Publication date |
|---|---|
| CN112706789B (en) | 2022-05-03 |
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