CN216272684U - Concrete circular pipe culvert hoisting device - Google Patents
Concrete circular pipe culvert hoisting device Download PDFInfo
- Publication number
- CN216272684U CN216272684U CN202122757269.2U CN202122757269U CN216272684U CN 216272684 U CN216272684 U CN 216272684U CN 202122757269 U CN202122757269 U CN 202122757269U CN 216272684 U CN216272684 U CN 216272684U
- Authority
- CN
- China
- Prior art keywords
- steel plate
- pipe culvert
- round pipe
- hoisting
- inverted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sewage (AREA)
Abstract
The utility model provides a concrete round pipe culvert hoisting device, which solves the problems that the existing round pipe culvert is troublesome to assemble in the installation process, the round pipe culvert is damaged in the hoisting process of the round pipe culvert, the construction mode has uneven stress and troublesome assembly, and more workers are needed to cooperate; the steel plate comprises an inverted 7-shaped steel plate, wherein a lifting point is arranged on the inverted 7-shaped steel plate, the upper end of the lifting point is fixedly connected with a lifting rope, the other end of the lifting rope is connected with an external lifting device, the lower end of the inverted 7-shaped steel plate is fixedly connected with a bearing steel plate, the upper end of the bearing steel plate is in contact connection with a round pipe culvert, and the bearing steel plate penetrates through the inside of the round pipe culvert; the utility model has simple and stable structure and extremely high universality.
Description
Technical Field
The utility model relates to the technical field of circular pipe culvert hoisting, in particular to a concrete circular pipe culvert hoisting device.
Background
The steel bar pipe culvert is a common drainage structure in a highway, and in the engineering construction process, the general pipe culvert is usually prefabricated in a centralized manner in a prefabricated field or purchased in a centralized manner from a factory, then is assembled in the field, and the steel bar pipe culvert is required to be installed in a hoisting manner to a foundation pit after the pipe culvert is transported to the field.
As the project construction of the expressway belongs to linear engineering, and as water systems are developed in the construction range of partial projects, a plurality of farmland irrigation water channels and small rivers for local people penetrate through the expressway, a plurality of pipe culverts are required to be arranged for communicating water flows on two sides of the expressway so as to meet the daily life and farmland irrigation requirements of local residents.
But the existing round pipe culvert has the following problems in the installation process:
1. the traditional installation process adopts a crane to add a steel wire rope or a sling to carry out hoisting operation, and is matched with workers to carry out splicing, but the steel wire rope or the sling is used for hoisting at the bottom of a pocket in the hoisting process, and the steel wire rope or the sling is not easy to take out after the steel wire rope or the sling is in place;
2. if the steel wire rope or the hanging strip penetrates into the pipe, the stress position of the pipe orifice is easy to damage, and the butt joint of the front pipe culvert and the rear pipe culvert is not facilitated. The construction method has the problems of uneven stress, troublesome assembly, more workers for matching and the like, is time-consuming and labor-consuming when being butted with other circular pipe culverts, and cannot meet the requirements of modern production;
3. in the process of hoisting the concrete pipe culvert, the round pipe culvert slides when the round pipe culvert slides, so that the round pipe culvert is damaged.
Therefore, the utility model provides a concrete round pipe culvert hoisting device to solve the problem.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides the concrete circular pipe culvert hoisting device which effectively solves the problems that the existing circular pipe culvert is troublesome to assemble in the installation process, the circular pipe culvert is damaged in the hoisting process of the circular pipe culvert, the construction mode has uneven stress, the assembly is troublesome and more workers are needed to cooperate.
The utility model comprises an inverted 7-shaped steel plate, wherein a lifting point is arranged on the inverted 7-shaped steel plate, the upper end of the lifting point is fixedly connected with a lifting rope, and the other end of the lifting rope is connected with an external lifting device;
the utility model discloses a bearing steel plate, including the shape of falling "7" steel sheet lower extreme fixedly connected with bearing steel sheet, bearing steel sheet upper end contact be connected with the pipe culvert, the bearing steel sheet wear to establish inside the pipe culvert.
Preferably, the side walls of the inverted 7-shaped steel plate and the supporting steel plate are fixedly connected with rib plates.
Preferably, the bearing steel plate is sleeved with protective rubber, the upper end face and the lower end face of the protective rubber are attached to the bearing steel plate, and the left side face and the right side face of the protective rubber are attached to the rib plates.
Preferably, the outer wall surface of the protective rubber is a frosted surface, and the edges of the inverted 7-shaped steel plate and the supporting steel plate are both provided with round corners.
Preferably, the lower side of the left end of the bearing steel plate is detachably connected with a limiting sleeve, a wedge-shaped sliding plate is connected in the limiting sleeve in a vertical sliding manner, the upper end of the wedge-shaped sliding plate is fixedly connected with a compression spring, and the other end of the compression spring is fixedly connected with the limiting sleeve;
the lower end of the wedge-shaped sliding plate is rotatably connected with a rolling wheel, the rolling wheel is made of rubber, and the rolling wheel is of a smooth surface structure;
the edge of the wedge-shaped sliding plate is of a round angle structure.
Preferably, the protection rubber is sleeved with a marking disc, the marking disc is connected with the protection rubber in a left-right sliding mode, the front end of the marking disc is connected with a fastening bolt in a threaded mode, and the rear end of the fastening bolt is attached to the protection rubber.
Preferably, the left end and the right end of the round pipe culvert are both step-shaped.
The utility model improves the existing circular pipe culvert hoisting device, and effectively solves the problems that the process of hoisting the circular pipe culvert needs manual auxiliary hoisting and a sling and a steel wire rope are not easy to take out by arranging the inverted 7-shaped steel plate and the bearing steel plate; the strength of the inverted 7-shaped steel plate and the strength of the bearing steel plate are improved by arranging the rib plates, so that the problem that the inverted 7-shaped steel plate and the bearing steel plate are deformed is effectively solved; the problem of breakage at the interface and the joint in the hoisting process of the round pipe culvert is effectively solved by adding the protective rubber, the inverted 7-shaped steel plate and the bearing steel plate as the round corner surfaces; the problems that the round pipe culvert is effectively supported and limited and slides and rolls in the hoisting process are effectively solved by arranging the limiting sleeve, the wedge-shaped sliding plate, the compression spring and the rolling wheel; the problem that the inserting depth of the bearing steel plate determines the mark in the process of hoisting the circular pipe culverts with different sizes is effectively solved by arranging the marking disc and the fastening bolt; and the structure is simple and stable, and the universality is extremely high.
Drawings
FIG. 1 is a perspective view of the circular pipe culvert hoisting process of the present invention.
FIG. 2 is a schematic cross-sectional view of the present invention.
Fig. 3 is a perspective view of the internal structure of the present invention.
FIG. 4 is a schematic view of the connection between the inverted "7" steel plate and the supporting steel plate according to the present invention.
FIG. 5 is a perspective view of the protective rubber of the present invention and its connecting structure.
Detailed Description
The foregoing and other aspects, features and advantages of the utility model will be apparent from the following more particular description of embodiments of the utility model, as illustrated in the accompanying drawings in which reference is made to figures 1 to 5. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
The embodiment I is a concrete circular pipe culvert hoisting device, which comprises an inverted 7-shaped steel plate 1, wherein a hoisting point 2 is arranged on the inverted 7-shaped steel plate 1, the hoisting point 2 can be conveniently hoisted by a crane through a hoisting ring or directly through a steel wire rope or a hoisting belt, the upper end of the hoisting point 2 is fixedly connected with a hoisting rope 3, the other end of the hoisting rope 3 is connected with an external hoisting device, and the inverted 7-shaped steel plate 1 is hoisted through the external hoisting device, so that the inverted 7-shaped steel plate 1 can slide up and down, left and right;
the lower end of the inverted 7-shaped steel plate 1 is fixedly connected with a bearing steel plate 4, the upper end of the bearing steel plate 4 is in contact connection with a round pipe culvert 5, the bearing steel plate 4 is arranged in the round pipe culvert 5 in a penetrating manner, the bearing steel plate 4 is used for bearing the round pipe culvert 5, the upper end surface of the bearing steel plate 4 is attached to the upper end of the inner wall of the round pipe culvert 5, the round pipe culvert 5 is hoisted, meanwhile, in the hoisting process, the lever principle is utilized, a hoisting point of a crane is taken as an original point, the self weight of the inverted 7-shaped steel plate 1 and the bearing steel plate 4 and the round pipe culvert 5 are divided into two sides and balanced with each other, so that the round pipe culvert 5 is in a horizontal stable state, the hoisting effect of the round pipe culvert 5 is realized, the hoisting of the round pipe culvert 5 is realized, and the round pipe culvert 5 is prevented from being provided with hanging straps and steel wire ropes, manual auxiliary operation is needed, time and labor are wasted, and meanwhile, the problem that the splicing dislocation between the two circular pipe culverts 5 in the installation process is caused, and the interface is damaged in the process of disassembling the sling and the steel wire rope is solved;
meanwhile, it is noted that the opposite-shaped structure of the inverted 7-shaped steel plate 1 makes the gravity center of the round pipe culvert 5 unbalanced when the round pipe culvert 5 is not hoisted, but after the round pipe culvert 5 is hoisted, the gravity of the side of the round pipe culvert 5 and the gravity of the inverted 7-shaped steel plate 1 and the supporting steel plate 4 are balanced with each other due to the non-uniformity of the steel plate, so that the round pipe culvert 5 can be kept balanced, and the round pipe culvert 5 can be quickly and conveniently butted with the round pipe culvert 5 at the previous section;
in the embodiment, before hoisting the circular pipe culvert 5, the circular pipe culvert 5 needs to be hoisted in a trial manner, the hoisting position of the circular pipe culvert 5 with the same size and volume is determined, the bearing steel plate 4 is placed in the circular pipe culvert 5, the length of the bearing steel plate 4 inserted into the circular pipe culvert 5 is adjusted, and in the process of hoisting in a trial manner, the position and the record of the bearing steel plate 4 are recorded when the circular pipe culvert 5 is in a horizontal state in the hoisting process, and then preparation is made for a large amount of subsequent hoisting work;
after the test hoisting is completed, the circular pipe culvert 5 is hoisted, a crane is started at first, the bearing steel plate 4 is arranged in the circular pipe culvert 5, when the bearing steel plate 4 is arranged in the position when the test hoisting is performed, the crane is started to enable the inverted 7-shaped steel plate 1 to be hoisted upwards, the circular pipe culvert 5 is hoisted through the bearing steel plate 4, then the circular pipe culvert 5 is transported and hoisted through moving a suspension arm of the crane, the circular pipe culvert 5 is moved to a proper position, after the hoisting is completed, the bearing steel plate 4 is moved downwards, and then the bearing steel plate 4 slides out of the circular pipe culvert 5 to complete the whole operation.
In the second embodiment, in addition to the first embodiment, in the process of hoisting the circular pipe culvert 5 through the inverted "7" steel plate 1 and the supporting steel plate 4 for a long time, the inverted "7" steel plate 1 and the supporting steel plate 4 are deformed, and subsequent use is limited, so that the present embodiment provides a structure for reinforcing the strength of the inverted "7" steel plate 1 and the supporting steel plate 4, specifically, rib plates 6 are fixedly connected to the side walls of the inverted "7" steel plate 1 and the supporting steel plate 4, the rib plates 6 are welded to two sides of the inverted "7" steel plate 1, and are used for reinforcing the inverted "7" steel plate 1 and the supporting steel plate 4, so as to increase the stability of the inverted "7" steel plate 1 and the supporting steel plate 4, meanwhile, the service lives of the inverted 7-shaped steel plate 1 and the supporting steel plate 4 are prolonged.
Third embodiment, on the basis of second embodiment, hoist circular pipe culvert 5's in-process, bearing steel sheet 4 with fall "7" type steel sheet 1 rigid contact, easily lead to circular pipe culvert 5 interface or inner wall appear damaged, so this embodiment provides one kind right circular pipe culvert 5 carry out the structure of protecting, specifically, bearing steel sheet 4 on the cover be equipped with protection rubber 7, protection rubber 7 up and down terminal surface with bearing steel sheet 4 laminate mutually, protection rubber 7 about the side with rib 6 laminate mutually, through protection rubber 7 cladding on bearing steel sheet 4, through protection rubber 7 right circular pipe culvert 5 protect, avoid circular pipe culvert 5 the phenomenon of colliding with appear.
In the fourth embodiment, on the basis of the third embodiment, when the round pipe culvert 5 is supported by the supporting steel plate 4, the circular pipe culvert 5 can slide in a small distance in the hoisting process to influence the hoisting process, so the embodiment provides a structure for preventing the circular pipe culvert 5 and the bearing steel plate 4 from sliding relatively, in particular, the outer wall surface of the protective rubber 7 is a frosted surface, so that the friction force between the protective rubber 7 and the circular pipe culvert 5 is increased, the relative sliding of the circular pipe culvert 5 is avoided, the arris of falling "7" shaped steel board 1 and bearing steel sheet 4 be seted up fillet 8, avoided right round pipe culvert 5 lift by crane the process fall "7" shaped steel board 1 and bearing steel sheet 4 cause the wound to the operator, also avoided simultaneously right round pipe culvert 5 take place to collide with.
Fifth embodiment, on the basis of the first embodiment, in order to avoid the phenomenon that the circular pipe culvert 5 rolls or the circular pipe culvert 5 tilts in the hoisting and installation process of the circular pipe culvert 5, the present embodiment provides a structure for limiting the circular pipe culvert 5, specifically, a limiting sleeve 9 is detachably connected to the lower side of the left end of the supporting steel plate 4, the limiting sleeve 9 is fixed by a fixing bolt, the limiting sleeve 9 is fixedly connected to the lower end of the supporting steel plate 4 by the fixing bolt, a wedge-shaped sliding plate 10 is slidably connected in the limiting sleeve 9 up and down, a compression spring 11 is fixedly connected to the upper end of the wedge-shaped sliding plate 10, the other end of the compression spring 11 is fixedly connected to the limiting sleeve 9, and under the action of the compression spring 11 and the external pressure, the wedge-shaped sliding plate 10 can slide up and down in the limiting sleeve 9, and meanwhile, the inclined plane end of the wedge-shaped sliding plate 10 is far away from one side of the inverted 7-shaped steel plate 1, so that when the bearing steel plate 4 is placed in the circular pipe culvert 5, the inclined plane end of the wedge-shaped sliding plate 10 firstly enters the circular pipe culvert 5;
the lower end of the wedge-shaped sliding plate 10 is rotatably connected with a rolling wheel 12, the rolling wheel 12 is made of rubber, the rolling wheel 12 is of a smooth surface structure, the rolling wheel 12 rotates in the circular pipe culvert 5, when the circular pipe culvert 5 is supported and supported, the circular pipe culvert 5 is inserted into the circular pipe culvert 5, meanwhile, the inclined plane end of the wedge-shaped sliding plate 10 is contacted with the right end of the circular pipe culvert 5, under the extrusion action of the circular pipe culvert 5, the wedge-shaped sliding plate 10 compresses the compression spring 11 to slide towards the upper end, when the rolling wheel 12 sliding on the wedge-shaped sliding plate 10 enters the circular pipe culvert 5, the wedge-shaped sliding plate 10 and the bearing steel plate 4 slide on the circular pipe culvert 5, after the proper sliding position, under the common limiting action of the bearing steel plate 4 and the wedge-shaped sliding plate 10, the stable bearing and hoisting of the circular pipe culvert 5 are completed;
the edges of the wedge-shaped sliding plates 10 are of round angle 8 structures, and meanwhile, the round angle 8 structures of the wedge-shaped sliding plates 10 avoid collision of the wedge-shaped sliding plates 10 on the round pipe culvert 5.
Sixth embodiment, in addition to the third embodiment, when the round pipe culvert 5 is hung on a trial basis, although the position can be determined by the experience of the operator, a deviation still occurs, so this embodiment provides a structure for marking the position of the round pipe culvert 4 after being hung on a trial basis, specifically, a marking disc 13 is sleeved on the protective rubber 7, the marking disc 13 is connected with the protective rubber 7 in a left-right sliding manner, the inner wall of the marking disc 13 is attached to the protective rubber 7, a guide bead is rotatably connected to the side of the marking disc 13 close to the protective rubber 7, the marking disc 13 slides on the round pipe culvert 4 in a left-right sliding manner under the action of the guide bead to mark the position after being hung on a trial basis, so that the right end face of the round pipe culvert 5 is in contact with the left end face of the marking disc 13 during each hoisting process, the length of the bearing steel plate 4 inserted into the circular pipe culvert 5 is limited, the front end of the marking disc 13 is in threaded connection with a fastening bolt 14, the rear end of the fastening bolt 14 is attached to the protective rubber 7, the marking disc 13 is fixed on the protective rubber 7 by rotating the fastening bolt 14, and the marking disc 13 is prevented from sliding.
Seventhly, on the basis of the first embodiment, the left end and the right end of the circular pipe culvert 5 are both step-shaped, and the two circular pipe culverts 5 are assembled through the step-shaped steps at the two ends of the two circular pipe culverts 5.
During specific use, before hoisting the circular pipe culvert 5, the circular pipe culvert 5 needs to be hoisted in a test mode, the hoisting position of the circular pipe culvert 5 with the same size and volume is determined, the bearing steel plate 4 is placed in the circular pipe culvert 5, then the length of the bearing steel plate 4 inserted into the circular pipe culvert 5 is adjusted, in the process of hoisting in a test mode, the circular pipe culvert 5 is in a horizontal state in the hoisting process, the position sum of the bearing steel plate 4 is recorded, and then the marking disc 13 is fixed at the position needing to be marked in the process of hoisting in a test mode through the fastening bolt 14;
after the completion is hung in the examination, begin to hoist circular pipe culvert 5, at first start the crane, arrange bearing steel plate 4 in circular pipe culvert 5, wedge slide 10 inclined plane end and the contact of 5 right-hand members of circular pipe culvert, under 5 extrusion of circular pipe culvert, wedge slide 10 compression spring 11 slides to the upper end, when the wheel 12 that rolls that wedge slide 10 slided gets into in the circular pipe culvert 5, wedge slide 10 and bearing steel plate 4 slide at circular pipe culvert 5, behind the gliding suitable position, under bearing steel plate 4 and wedge slide 10's common limiting displacement, accomplish the stable bearing hoist and mount to circular pipe culvert 5, hang circular pipe culvert 5 to and the position is assembled to last section circular pipe culvert 5, accomplish the hoist and mount to circular pipe culvert 5.
The utility model has the following beneficial effects in the using process:
(1) the device is simple in structure, stable in integral ground falling, capable of conveniently and accurately conveying the round pipe culvert on the ground, convenient for efficient butt joint of the round pipe culvert, time-saving and labor-saving in the whole hoisting process and good in butt joint effect;
(2) the inverted 7-shaped steel plate not only plays a good bearing role, ensures uniform stress and prevents the circular pipe culvert from being damaged, but also can stably fall to the ground, is convenient for determining the butt joint position and ensures that the circular pipe culvert can be accurately butted;
(3) the utility model discloses a device just needs to insert in the pipe culvert before lifting by crane, just can very conveniently transport the butt joint with the pipe culvert on the ground after lifting by crane, and the shape that adapts to the pipe culvert is directly inserted to the bearing steel sheet, after the butt joint is accomplished, only needs to put down "7" type steel sheet can easily realize that the pipe culvert breaks away from "7" type steel sheet, and reduced the liftoff height of pipe culvert effectively, can contact ground easily after being convenient for the pipe culvert butt joint, guarantee the butt joint effect;
(4) the effect of "7" type steel sheet and protection rubber falls for prevent the slip of circular pipe culvert hoist and mount process, and effectively protected the edges and corners of circular pipe culvert to avoid receiving the destruction.
Claims (7)
1. The concrete round pipe culvert hoisting device is characterized by comprising an inverted 7-shaped steel plate (1), wherein a hoisting point (2) is arranged on the inverted 7-shaped steel plate (1), the upper end of the hoisting point (2) is fixedly connected with a hoisting rope (3), and the other end of the hoisting rope (3) is connected with an external hoisting device;
inverted '7' shaped steel plate (1) lower extreme fixedly connected with bearing steel plate (4), bearing steel plate (4) upper end contact be connected with round pipe culvert (5), bearing steel plate (4) wear to establish round pipe culvert (5) inside.
2. The concrete round pipe culvert hoisting device according to claim 1, wherein the side walls of the inverted 7-shaped steel plate (1) and the supporting steel plate (4) are fixedly connected with rib plates (6).
3. The concrete round pipe culvert (5) hoisting device as claimed in claim 2, wherein the supporting steel plate (4) is sleeved with a protective rubber (7), the upper and lower end faces of the protective rubber (7) are attached to the supporting steel plate (4), and the left and right side faces of the protective rubber (7) are attached to the rib plates (6).
4. The concrete round pipe culvert hoisting device according to claim 3, wherein the outer wall surface of the protective rubber (7) is a frosted surface, and the edges of the inverted 7-shaped steel plate (1) and the bearing steel plate (4) are both provided with round corners (8).
5. The concrete round pipe culvert hoisting device according to claim 1, wherein a limiting sleeve (9) is detachably connected to the lower side of the left end of the bearing steel plate (4), a wedge-shaped sliding plate (10) is vertically and slidably connected in the limiting sleeve (9), a compression spring (11) is fixedly connected to the upper end of the wedge-shaped sliding plate (10), and the other end of the compression spring (11) is fixedly connected with the limiting sleeve (9);
the lower end of the wedge-shaped sliding plate (10) is rotatably connected with a rolling wheel (12), the rolling wheel (12) is made of rubber, and the rolling wheel (12) is of a smooth surface structure;
the edge of the wedge-shaped sliding plate (10) is in a round angle (8) structure.
6. The concrete round pipe culvert hoisting device according to claim 3, wherein the protective rubber (7) is sleeved with a marking disc (13), the marking disc (13) is connected with the protective rubber (7) in a sliding manner, the front end of the marking disc (13) is in threaded connection with a fastening bolt (14), and the rear end of the fastening bolt (14) is attached to the protective rubber (7).
7. The concrete round pipe culvert hoisting device according to claim 1, wherein the left and right ends of the round pipe culvert (5) are stepped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122757269.2U CN216272684U (en) | 2021-11-11 | 2021-11-11 | Concrete circular pipe culvert hoisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122757269.2U CN216272684U (en) | 2021-11-11 | 2021-11-11 | Concrete circular pipe culvert hoisting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216272684U true CN216272684U (en) | 2022-04-12 |
Family
ID=81007231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122757269.2U Active CN216272684U (en) | 2021-11-11 | 2021-11-11 | Concrete circular pipe culvert hoisting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216272684U (en) |
-
2021
- 2021-11-11 CN CN202122757269.2U patent/CN216272684U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104759856A (en) | Manufacturing and installing method for upper cone on dry quenching furnace shell | |
| CN216272684U (en) | Concrete circular pipe culvert hoisting device | |
| CN113981961A (en) | Barge type pile planting method for deep water bare rock | |
| CN202064281U (en) | Slip form frame | |
| CN106080965B (en) | A kind of method for supporting and device always organized for ship topside curved section | |
| CN205603080U (en) | Multipurpose combination formula weight | |
| CN212376290U (en) | Post-cast constructional column concrete lifting device | |
| CN108862010A (en) | A kind of Large Steel cylinder hoisting fixture and its hanging method | |
| CN212273430U (en) | Pipe orifice protective cover for large-diameter pipeline construction | |
| CN210858803U (en) | Inclined shaft construction conveyer | |
| CN113529724A (en) | Foundation pit concrete pouring construction method | |
| CN209758880U (en) | self-propelled superelevation super large area steel reinforcement cage lifting equipment | |
| CN207184008U (en) | A kind of assembly type draws well | |
| CN210658056U (en) | Bridge steel stand hoist and mount device of turning | |
| CN112360136A (en) | Formwork support frame body of concrete pouring wall body of elevator shaft and erection method thereof | |
| CN206104558U (en) | A device for changing width heavy plate mill hydraulic pressure AGC jar | |
| CN111827262A (en) | Construction method of fold-line-shaped irregular underground continuous wall | |
| CN214399453U (en) | Construction elevator footboard that can overturn | |
| CN102756988A (en) | Movable sling for mounting expansion joint of comb plate | |
| CN220581065U (en) | Underground roof supporting structure for coal mine | |
| CN213535819U (en) | Cast rod aligning and placing device | |
| CN204370796U (en) | Hoistway formwork platform | |
| CN209874008U (en) | Installation vehicle for drainage engineering pipeline in municipal engineering | |
| CN212105891U (en) | A steel mould platform truck for tailing storehouse water drainage tank concrete is integrally cast | |
| CN215105049U (en) | Large-scale ship-berthing component support system suitable for assembled high-pile wharf |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |