CN110004805B - Telescoping device for screed - Google Patents
Telescoping device for screed Download PDFInfo
- Publication number
- CN110004805B CN110004805B CN201910402008.3A CN201910402008A CN110004805B CN 110004805 B CN110004805 B CN 110004805B CN 201910402008 A CN201910402008 A CN 201910402008A CN 110004805 B CN110004805 B CN 110004805B
- Authority
- CN
- China
- Prior art keywords
- side plate
- telescopic
- frame
- outer side
- main support
- 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
- 239000000725 suspension Substances 0.000 claims description 19
- 238000012545 processing Methods 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 9
- 230000006872 improvement Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/4866—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely non-vibratory or non-percussive pressing or smoothing means for consolidating or finishing
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a telescopic device for a screed plate, which adopts a main support pipe matched with a guide pipe as a support structure and is arranged on an inner side plate and an outer side plate of a basic frame; the telescopic hanging inner side plate, the outer side plate, the front cross beam and the rear cross beam form a main body frame of the telescopic device, and the main body frame is connected with the main support pipe and the guide pipe in a three-point matching way to form a space three-dimensional bending and torsion resistant structure. The main support pipe and the guide pipe of the telescopic device are of a single steel pipe structure, the processing is simple, the cost is low, the two pipes are arranged on the side plate of the foundation frame, an additional support structure is not needed, and the frame structure is simplified.
Description
Technical Field
The invention relates to a telescopic device, in particular to a telescopic device for a screed, and belongs to the field of road construction machinery.
Background
The existing paving machine is developed in a large scale to meet the requirements of paving with large width and thickness; the other aspect is miniaturized development to satisfy construction requirements such as pavement, bike path, park green land slow runway. At present, domestic enterprises have not yet promoted the small-sized paving machine type, the domestic market mainly comprises import, the price is high, and the cost performance is low. The construction quality requirement of the small paver is relatively low, the construction quality requirement is easily approved by users by simplifying the structure and controlling the cost, and the economic benefit is rapidly realized.
The existing telescopic mechanism for the telescopic screed plate has the following forms:
the first three-level sleeve telescopic mechanism shown in fig. 1, wherein the processing precision requirement of the three-level sleeve 1 is high, the inner surface and the outer surface are both coated with nickel layers, the process is complex, and the cost is high;
the second type of single-stage support tube multistage telescopic mechanism shown in fig. 2, although the single-stage support tube 2 is relatively simple to manufacture and only has outer circle coated, the frame for mounting the support cylinder is partially welded (namely, the position of the welding part 3 in the figure), the structure is complex, and the manufacturing cost is increased;
the third, double parallel single stage support tube mechanism shown in fig. 3, the double parallel support tube 4 is relatively simple in structure, but suffers from the same problems as the single stage support tube multistage telescoping mechanism.
Therefore, the existing screed telescoping mechanism has complex structure, difficult processing and high cost.
Disclosure of Invention
The invention provides a telescopic device for a screed plate, which solves the problems of complex telescopic tube, complex installation and suspension structure, difficult processing and high cost.
In order to achieve the above purpose, the telescopic device for the screed plate comprises a right base frame and a left base frame which are symmetrically arranged, wherein the left base frame and the right base frame respectively comprise a frame inner plate and a frame outer plate; the telescopic device comprises a telescopic oil cylinder, a main support pipe, a telescopic hanging outer plate, a rear cross beam, a telescopic hanging inner plate and a guide pipe;
the telescopic hanging inner side plate is positioned between the inner side plate and the outer side plate of the frame, the main support pipe is slidably arranged on the inner side plate of the frame, the telescopic hanging inner side plate and the outer side plate of the frame, and the outer end of the main support pipe is fixedly connected with the telescopic hanging outer side plate; the guide pipe is arranged in parallel with the main support pipe, the middle part of the guide pipe penetrates through the telescopic hanging inner side plate, and the two ends of the guide pipe are respectively fixed on the inner side plate and the outer side plate of the frame; the two ends of the rear cross beam are respectively fixed on the telescopic hanging outer side plate and the telescopic hanging inner side plate; the cylinder barrel of the telescopic cylinder is arranged on the outer side plate of the frame, and the head part of a piston rod of the telescopic cylinder is fixedly connected with the outer side plate of the telescopic suspension;
the left telescopic device is also provided with a front cross beam, and the front cross beam is fixed between the telescopic hanging outer side plate and the telescopic hanging inner side plate.
As an improvement, the two ends of the guide pipe are respectively fixed on the inner side plate and the outer side plate of the frame through flange plates.
As an improvement, the outer side plate of the frame is respectively provided with mounting holes for mounting the telescopic oil cylinder, the main support pipe and the guide pipe; and the inner side plate of the frame is correspondingly provided with mounting holes for mounting the main support pipe and the guide pipe.
As an improvement, two round holes are formed in the telescopic hanging inner side plate, one round hole is sleeved on the main supporting tube, the other round hole is sleeved on the guide tube, and the telescopic hanging inner side plate slides along the main supporting tube and the guide tube through the two round holes.
As an improvement, the cylinder barrel of the telescopic oil cylinder is fixedly arranged on the outer side plate of the frame through bolts, and the head part of a piston rod of the telescopic oil cylinder is locked on the outer side plate of the telescopic suspension through nuts.
As an improvement, the front cross beam is fixed between the telescopic hanging outer side plate and the telescopic hanging inner side plate through bolts.
As an improvement, the two ends of the rear cross beam are fixedly connected to the telescopic hanging outer side plate and the telescopic hanging inner side plate through bolts respectively.
As an improvement, the main support tube of the left telescopic device and the main support tube of the right telescopic device are arranged in parallel in a front-back staggered way.
Compared with the prior art, the telescopic device adopts the main support pipe matched with the guide pipe as a support structure and is arranged on the inner side plate and the outer side plate of the foundation frame; the telescopic hanging inner side plate, the outer side plate, the front cross beam and the rear cross beam form a main body frame of the telescopic device, and the main body frame is connected with the main support pipe and the guide pipe in a three-point matching way to form a space three-dimensional bending and torsion resistant structure. The main support pipe and the guide pipe of the telescopic device are of a single steel pipe structure, the processing is simple, the cost is low, the two pipes are arranged on the side plate of the foundation frame, an additional support structure is not needed, and the frame structure is simplified.
Drawings
FIG. 1 is a prior art three stage sleeve telescoping mechanism;
FIG. 2 is a prior art single stage support tube multi-stage telescoping mechanism;
FIG. 3 is a prior art double parallel single stage support tube mechanism;
FIG. 4 is a schematic diagram of a first embodiment of the present invention;
FIG. 5 is a second schematic diagram of the structure of the present invention;
in the figure: 1. the three-stage sleeve pipe, 2, single-stage stay tube, 3, welded part, 4, double parallel stay tube, 5, right basic frame, 6, frame inner side plate, 7, left basic frame, 8, frame outer side plate, 9, telescopic cylinder, 10, main support tube, 11, telescopic suspension outer side plate, 12, front beam, 13, rear beam, 14, flange plate, 15, telescopic suspension inner side plate, 16, guide tube.
Detailed Description
The present invention will be described in further detail below in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in this description of the invention are for the purpose of describing particular embodiments only and are not intended to be limiting of the invention.
As shown in fig. 4 and 5, the telescopic device for the screed comprises a right base frame 5 and a left base frame 7 which are symmetrically arranged, wherein each of the left base frame and the right base frame comprises a frame inner side plate 6 and a frame outer side plate 8; the telescopic device comprises a telescopic cylinder 9, a main support pipe 10, a telescopic hanging outer side plate 11, a rear cross beam 13, a telescopic hanging inner side plate 15 and a guide pipe 16;
the telescopic hanging inner side plate 15 is positioned between the inner side plate and the outer side plate of the frame, the main support pipe 10 is slidably arranged on the inner side plate 6 of the frame, the telescopic hanging inner side plate 15 and the outer side plate 8 of the frame, and the outer end of the main support pipe 10 is fixedly connected with the outer side plate 11 of the telescopic hanging; the guide pipes 16 are arranged in parallel with the main support pipes 10, the main support pipes 10 are arranged at the upper position slightly higher than the height of the material pile, the guide pipes are arranged at the lower part of the foundation frame to the maximum extent, the middle parts of the guide pipes 16 penetrate through the telescopic hanging inner side plates 15, and the two ends of the guide pipes 16 are respectively fixed on the inner side plate and the outer side plate of the frame; the two ends of the rear cross beam 13 are respectively fixed on the telescopic hanging outer side plate 11 and the telescopic hanging inner side plate 15; the cylinder barrel of the telescopic cylinder 9 is arranged on the outer side plate 8 of the frame, and the head part of a piston rod of the telescopic cylinder 9 is fixedly connected with the outer side plate 11 of the telescopic suspension; the left telescopic device is also provided with a front cross beam 12, and the front cross beam 12 is fixed between the telescopic hanging outer side plate 11 and the telescopic hanging inner side plate 15.
The telescopic device adopts a main support pipe matched with a guide pipe as a support structure and is arranged on an inner side plate and an outer side plate of a foundation frame; the telescopic hanging inner side plate, the outer side plate, the front cross beam and the rear cross beam form a main body frame of the telescopic device, and the main body frame is connected with the main support pipe and the guide pipe in a three-point matching way to form a space three-dimensional bending and torsion resistant structure.
As an embodiment, the two ends of the guide tube 16 are respectively fixed on the inner side plate 6 and the outer side plate 8 of the frame through the flange plate 14, so that the stability of the whole structure is high.
As an embodiment, the outer side plate 8 of the frame is provided with mounting holes for mounting the telescopic oil cylinder 9, the main support pipe 10 and the guide pipe 16 respectively; the installation holes for installing the main support pipe 10 and the guide pipe 16 are correspondingly formed in the inner side plate 6 of the frame, the structural design is reasonable, the installation and the use are convenient, and the installation requirements are effectively met.
Preferably, the telescopic hanging inner side plate 15 is provided with two round holes, one round hole is sleeved on the main supporting tube 10, the other round hole is sleeved on the guide tube 16, and the telescopic hanging inner side plate 15 slides along the main supporting tube 10 and the guide tube 16 through the two round holes.
As the preferred embodiment, the cylinder barrel of the telescopic cylinder 9 is fixedly mounted on the outer side plate 8 of the frame through bolts, the head of the piston rod of the telescopic cylinder 9 is locked on the outer side plate 11 of the telescopic suspension through nuts, the structural stability is high, and the telescopic cylinder 9 acts on the outer side plate 11 of the telescopic suspension to drive the main support pipe 10 and the inner side plate 15 of the telescopic suspension to move.
As an embodiment, the front cross beam 12 is fixed between the telescopic hanging outer side plate 11 and the telescopic hanging inner side plate 15 by bolts; the two ends of the rear cross beam 13 are fixedly connected to the telescopic hanging outer side plate 11 and the telescopic hanging inner side plate 15 through bolts respectively, and the whole structure is stable.
As the preference of the embodiment, the main support pipe of the left telescopic device and the main support pipe of the right telescopic device are arranged in a front-back staggered and parallel manner, so that the telescopic requirement of the screed plate is effectively met.
Example 1
The telescopic device for the screed comprises a right base frame 5 and a left base frame 7 which are symmetrically arranged, wherein each of the left base frame and the right base frame comprises a frame inner side plate 6 and a frame outer side plate 8; the telescopic device comprises a telescopic cylinder 9, a main support pipe 10, a telescopic hanging outer side plate 11, a rear cross beam 13, a telescopic hanging inner side plate 15 and a guide pipe 16;
the implementation is described below in terms of a left telescoping device:
the frame outer side plate 8 is provided with mounting holes of a telescopic oil cylinder 9, a main support pipe 10 and a guide pipe 16, and the frame inner side plate 6 is provided with mounting holes of the main support pipe 10 and the guide pipe 16; the main support pipe 10 passes through the round holes on the outer side plate 8 and the inner side plate 6 of the frame at the same time and can slide in the holes; the guide tube 16 passes through the round holes on the outer side plate 8 and the inner side plate 6 of the frame at the same time, the guide tube 16 is parallel to the main support tube 10, and both ends of the guide tube 16 are fixed through the flange plate 14; the outer side plate 11 of the telescopic suspension is fixedly connected with the outer end of the main support pipe 10; the telescopic hanging inner side plate 15 is positioned between the frame outer side plate 8 and the frame inner side plate 6, two round holes are formed in the telescopic hanging inner side plate 15, one round hole is sleeved on the main support pipe 10, the other round hole is sleeved on the guide pipe 16, and the telescopic hanging inner side plate 15 can slide along the main support pipe 10 and the guide pipe 16;
a front cross beam 12 and a rear cross beam 13 are arranged between the telescopic hanging outer side plate 11 and the telescopic hanging inner side plate 15 and are fixedly connected through bolts; the cylinder barrel of the telescopic cylinder 9 is fixedly arranged on the outer side plate 8 of the frame through bolts, and the head part of a piston rod of the telescopic cylinder 9 is connected with the outer side plate 11 of the telescopic suspension through nuts.
When the left telescopic device works, power is provided by the telescopic oil cylinder 9, the head part of a piston rod of the telescopic oil cylinder 9 acts on the telescopic hanging outer side plate 11 to drive the main support pipe 10 and the telescopic hanging inner side plate 15 to move, so that the left telescopic device is extended and retracted.
The structure of the right telescopic device is similar to that of the left telescopic device, but the front cross beam 12 is not arranged in the right telescopic device, and the main support pipe of the left telescopic device and the main support pipe of the right telescopic device are arranged in a front-back staggered parallel manner. The telescopic working principle of the right telescopic device is the same as that of the left telescopic device.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.
Claims (4)
1. The telescopic device for the screed comprises a right base frame (5) and a left base frame (7) which are symmetrically arranged, wherein the left base frame and the right base frame both comprise a frame inner side plate (6) and a frame outer side plate (8);
the telescopic device is characterized by further comprising a left telescopic device arranged on the left base frame (7) and a right telescopic device arranged on the right base frame (5), wherein the left telescopic device and the right telescopic device comprise a telescopic oil cylinder (9), a main support pipe (10), a telescopic suspension outer side plate (11), a rear cross beam (13), a telescopic suspension inner side plate (15) and a guide pipe (16);
the telescopic hanging inner side plate (15) is positioned between the inner side plate and the outer side plate (6, 8) of the frame, the main support pipe (10) is slidably arranged on the inner side plate (6) of the frame, the telescopic hanging inner side plate (15) and the outer side plate (8) of the frame, and the outer end of the main support pipe (10) is fixedly connected with the telescopic hanging outer side plate (11); the guide pipes (16) are arranged in parallel with the main support pipes (10), the middle parts of the guide pipes (16) penetrate through the telescopic hanging inner side plates (15), and the two ends of the guide pipes (16) are respectively fixed on the inner side plates and the outer side plates (6 and 8) of the frame; two ends of the rear cross beam (13) are respectively fixed on the telescopic hanging outer side plate (11) and the telescopic hanging inner side plate (15); the cylinder barrel of the telescopic oil cylinder (9) is arranged on the outer side plate (8) of the frame, and the head part of a piston rod of the telescopic oil cylinder (9) is fixedly connected with the outer side plate (11) of the telescopic suspension;
the left telescopic device is also provided with a front cross beam (12), and the front cross beam (12) is fixed between the telescopic hanging outer side plate (11) and the telescopic hanging inner side plate (15);
the two ends of the guide pipe (16) are respectively fixed on the frame inner side plate (6) and the frame outer side plate (8) through flange plates (14), and mounting holes for mounting the telescopic oil cylinder (9), the main support pipe (10) and the guide pipe (16) are respectively formed in the frame outer side plate (8); mounting holes for mounting the main support tube (10) and the guide tube (16) are correspondingly formed in the inner side plate (6) of the frame; two round holes are formed in the telescopic hanging inner side plate (15), one round hole is sleeved on the main support pipe (10), the other round hole is sleeved on the guide pipe (16), and the telescopic hanging inner side plate (15) slides along the main support pipe (10) and the guide pipe (16) through the two round holes; the cylinder barrel of the telescopic oil cylinder (9) is fixedly arranged on the outer side plate (8) of the frame through bolts, and the head part of a piston rod of the telescopic oil cylinder (9) is locked on the outer side plate (11) of the telescopic suspension through nuts.
2. The telescopic device for screeds according to claim 1, characterized in that the front cross beam (12) is fastened between the telescopic suspension outer plate (11) and the telescopic suspension inner plate (15) by means of bolts.
3. The telescopic device for the screed plate according to claim 1 or 2, wherein both ends of the rear cross beam (13) are fixedly connected to the telescopic suspension outer side plate (11) and the telescopic suspension inner side plate (15) by bolts, respectively.
4. The screed telescoping device of claim 1, wherein the main support tube of the left telescoping device is offset front-to-back parallel to the main support tube of the right telescoping device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910402008.3A CN110004805B (en) | 2019-05-15 | 2019-05-15 | Telescoping device for screed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910402008.3A CN110004805B (en) | 2019-05-15 | 2019-05-15 | Telescoping device for screed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110004805A CN110004805A (en) | 2019-07-12 |
| CN110004805B true CN110004805B (en) | 2024-02-27 |
Family
ID=67177125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910402008.3A Active CN110004805B (en) | 2019-05-15 | 2019-05-15 | Telescoping device for screed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110004805B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111962493B (en) * | 2020-08-25 | 2022-04-01 | 泰山学院 | Pipeline is laid and is used bed course compaction device |
| CN112482149B (en) * | 2020-11-19 | 2022-07-12 | 徐工集团工程机械股份有限公司道路机械分公司 | Telescopic screed plate and paver |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10131115A (en) * | 1996-10-30 | 1998-05-19 | Handa Kikai Kk | Screed device in asphalt finisher |
| JP2000120016A (en) * | 1998-10-16 | 2000-04-25 | Handa Kikai Kk | Screed device in paver |
| CN102926313A (en) * | 2012-11-20 | 2013-02-13 | 中联重科股份有限公司 | Screed height-difference adjusting device, paver and screed high-difference adjusting method |
| CN107326780A (en) * | 2017-07-20 | 2017-11-07 | 徐工集团工程机械股份有限公司 | A kind of freely-moving mangle suspension arrangement |
| CN210127384U (en) * | 2019-05-15 | 2020-03-06 | 徐工集团工程机械股份有限公司道路机械分公司 | Telescopic device for ironing board |
-
2019
- 2019-05-15 CN CN201910402008.3A patent/CN110004805B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10131115A (en) * | 1996-10-30 | 1998-05-19 | Handa Kikai Kk | Screed device in asphalt finisher |
| JP2000120016A (en) * | 1998-10-16 | 2000-04-25 | Handa Kikai Kk | Screed device in paver |
| CN102926313A (en) * | 2012-11-20 | 2013-02-13 | 中联重科股份有限公司 | Screed height-difference adjusting device, paver and screed high-difference adjusting method |
| CN107326780A (en) * | 2017-07-20 | 2017-11-07 | 徐工集团工程机械股份有限公司 | A kind of freely-moving mangle suspension arrangement |
| CN210127384U (en) * | 2019-05-15 | 2020-03-06 | 徐工集团工程机械股份有限公司道路机械分公司 | Telescopic device for ironing board |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110004805A (en) | 2019-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110004805B (en) | Telescoping device for screed | |
| CN202416317U (en) | Pile driver with adjustable inclination angle | |
| CN112900921A (en) | Novel support frame for construction | |
| CN210127384U (en) | Telescopic device for ironing board | |
| CN102304890A (en) | Hydraulic stepless telescopic mechanism of ironing board of paver | |
| CN103950867B (en) | Integral type for fork truck is tumbled bucket | |
| CN209068110U (en) | A kind of textile machine support frame | |
| CN203458093U (en) | Automatic rising-lowering display rack | |
| CN215057099U (en) | Angle-variable adjusting mechanism of horizontal directional drilling machine girder and horizontal directional drilling machine | |
| CN208686319U (en) | A kind of improved drill stretchable mast | |
| CN202571647U (en) | Feeding device for strengthening rib in steel structure round pipe | |
| CN209581552U (en) | A kind of megaphanerophyte after-culture transport trolley | |
| CN208007198U (en) | A kind of dampening assembly for bicycle front fork vehicle frame | |
| CN210341567U (en) | Soil shoulder slipform mould and paver | |
| CN201428571Y (en) | Improved double-cylinder pressure generating device for fluids | |
| CN201350807Y (en) | Helper device installed on upright post of tire changer | |
| CN201077734Y (en) | Integral side shifter | |
| CN212002592U (en) | Prefabricated formula 5G communication base station | |
| CN211627166U (en) | Concrete pipe pile supporting structure | |
| CN211942850U (en) | Novel forklift drive axle structure | |
| CN219932216U (en) | Anti-falling and anti-collapse hydraulic support set | |
| CN208199757U (en) | A kind of carriage convenient for adjusting | |
| CN219074203U (en) | Steel numerical control bending machine | |
| CN219029666U (en) | Front wheel shock-absorbing structure of scooter | |
| CN218894429U (en) | Simple device for quickly assembling and binding semi-finished product steel bars into framework |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |