CN114249100A - a turning machine - Google Patents
a turning machine Download PDFInfo
- Publication number
- CN114249100A CN114249100A CN202111562461.4A CN202111562461A CN114249100A CN 114249100 A CN114249100 A CN 114249100A CN 202111562461 A CN202111562461 A CN 202111562461A CN 114249100 A CN114249100 A CN 114249100A
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- Prior art keywords
- frame
- turning
- steel structure
- roll
- clamping
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- 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.)
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 89
- 239000010959 steel Substances 0.000 claims abstract description 89
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 230000007306 turnover Effects 0.000 abstract description 69
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
- B65G47/248—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles by turning over or inverting them
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a turnover machine, which comprises: a frame; the first turnover frame is arranged on the rack through a first turnover mechanism, a first positioning structure matched with the steel structure is arranged on the first turnover frame, the first turnover frame can be clamped with the steel structure through the first positioning structure, and the first turnover frame is controlled to rotate from a horizontal state to a vertical state through the first turnover mechanism; the second roll-over stand is arranged on the rack through a second turnover mechanism, a second positioning structure matched with the steel structure is arranged on the second roll-over stand, the second roll-over stand can be connected with the steel structure through the second positioning structure in a clamped mode, the second roll-over stand is controlled to rotate to a vertical state from a horizontal state through the second turnover mechanism, and the rotation direction of the second roll-over stand is opposite to that of the first roll-over stand so as to be opposite to the first roll-over stand when the second roll-over stand rotates to the vertical state. The invention can replace the lower surface of the untreated and processed steel structure to the upper surface, thereby facilitating the workers to treat and process the steel structure.
Description
Technical Field
The invention relates to steel structure processing equipment, in particular to a turnover machine.
Background
In the production and processing process of large-scale steel structure, need handle the steel structure surface, if polish and spray paint, when carrying out surface machining, pass through corresponding structural support in the bottom of steel structure, if directly process the steel structure lower surface this moment, the position of support will not process, needs follow-up processing of mending again, but follow-up rework can have the inconsistent quality problems of lacquer painting. And the mode of processing and follow-up supplementary processing to the steel structure lower surface, production efficiency is lower.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the turnover machine which can turn over steel structures and is convenient for workers to process.
According to an embodiment of the invention, the turnover machine comprises:
a frame;
the first turnover frame is arranged on the rack through a first turnover mechanism, a first positioning structure matched with a steel structure is arranged on the first turnover frame, the first turnover frame can be clamped with the steel structure through the first positioning structure, and the first turnover frame is controlled to rotate from a horizontal state to a vertical state through the first turnover mechanism;
the second roll-over stand sets up through second tilting mechanism in the frame, be provided with the second location structure with the steel structure adaptation on the second roll-over stand, the second roll-over stand can pass through second location structure joint steel structure, and pass through second tilting mechanism control is rotated to vertical state from the horizontality, just the rotation direction of second roll-over stand with first roll-over stand is opposite, in order to be used for when rotating to vertical state with first roll-over stand is relative.
According to the embodiment of the invention, at least the following technical effects are achieved:
according to the invention with the structure, a steel structure can be placed on the first turnover frame firstly, the upper surface of the steel structure is processed and processed, then the steel structure is rotated to the vertical state through the first turnover mechanism, meanwhile, the second turnover frame is rotated to the vertical state and is butted with the first turnover frame, the steel structure is received, the second turnover frame is controlled to reset, the upper surface and the lower surface of the steel structure can be turned over, the unprocessed and processed lower surfaces are changed to the upper surface, the steel structure is convenient to process and process by workers, and the defects that the efficiency of the workers directly processing the lower surface of the steel structure is low, part of positions cannot be processed, subsequent supplementary processing is needed and the like can be overcome.
According to some embodiments of the invention, the first flipping mechanism and/or the second flipping mechanism is/are slidably arranged on the frame for adjusting the distance between the first and the second roll-over carriage.
According to some embodiments of the invention, the frame is provided with a rectangular frame, the inside of the rectangular frame is provided with a chute, the second turnover mechanism is provided with a carriage, the carriage is slidably mounted in the chute, and the second turnover frame is rotatably mounted on the carriage.
According to some embodiments of the invention, the sliding groove has an isosceles trapezoid cross section, and the carriage is provided with a roller adapted to the sliding groove.
According to some embodiments of the invention, a second supporting seat is vertically arranged at a position of the carriage close to the first roll-over stand, the second roll-over stand is rotatably mounted at the upper end of the second supporting seat, the second roll-over mechanism is further provided with a second roll-over cylinder, one end of the second roll-over cylinder is hinged to the second roll-over stand, the other end of the second roll-over cylinder is hinged to the carriage, so as to control the second roll-over stand to rotate through extension and retraction, when the extension amount of the second roll-over cylinder is zero, the second roll-over cylinder supports the second roll-over stand in cooperation with the second supporting seat, and the second roll-over stand is kept in a horizontal state.
According to some embodiments of the present invention, the first turnover mechanism includes a first support seat vertically disposed on the frame, the first turnover frame is rotatably mounted at an upper end of the first support seat, and the first turnover mechanism is further provided with a first turnover cylinder, one end of the first turnover cylinder is hinged to the first turnover frame, and the other end of the first turnover cylinder is hinged to the frame, so as to control the first turnover frame to rotate through telescoping, and when an extension amount of the first turnover cylinder is zero, the first turnover cylinder supports the first turnover frame in cooperation with the first support seat, so that the first turnover frame is kept in a horizontal state.
According to some embodiments of the invention, two sides of the first turnover frame are provided with first supporting parts, two ends of the first turnover frame are provided with first clamping parts, the width of the first supporting parts on two sides is smaller than the width of the steel structure, the distance between the first clamping parts on two ends is larger than the length of the steel structure, and the two first clamping parts can be opened and closed to be adjusted for clamping the steel structure.
According to some embodiments of the invention, the two sides of the second roll-over stand are provided with second supporting parts, the two ends of the second roll-over stand are provided with second clamping parts, the width of the second supporting parts on the two sides is smaller than the width of the steel structure, the distance between the second clamping parts on the two ends is larger than the length of the steel structure, and the two second clamping parts can be opened and closed and adjusted to clamp the steel structure.
According to some embodiments of the invention, the second clamping portion is higher than the second supporting portion, and the first clamping portion is higher than the first supporting portion.
According to some embodiments of the invention, the first and second clamping portions are offset.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is an axial side schematic view of the present invention;
fig. 2 is a front view of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 2, the present invention provides a tilter, including:
a frame 100;
the first turnover frame 200 is arranged on the rack 100 through a first turnover mechanism, a first positioning structure matched with the steel structure is arranged on the first turnover frame 200, the first turnover frame 200 can be clamped with the steel structure through the first positioning structure, and the first turnover frame is controlled to rotate from a horizontal state to a vertical state through the first turnover mechanism;
second roll-over stand 300 sets up in frame 100 through the second tilting mechanism, is provided with the second location structure with the steel structure adaptation on the second roll-over stand 300, and second roll-over stand 300 can pass through second location structure joint steel structure to rotate to vertical state from the horizontality through second tilting mechanism control, and the rotation direction of second roll-over stand 300 is opposite with first roll-over stand 200, so that be used for rotating to vertical state when being relative with first roll-over stand 200.
According to the invention with the structure, a steel structure can be placed on the first turnover frame 200 firstly, the upper surface of the steel structure is processed and processed, then the steel structure is rotated to the vertical state through the first turnover mechanism, meanwhile, the second turnover frame 300 is rotated to the vertical state to be butted with the first turnover frame 200, the steel structure is received, the second turnover frame 300 is controlled to reset, the upper surface and the lower surface of the steel structure can be turned over, the unprocessed and processed lower surfaces are changed to the upper surface, the steel structure is convenient for workers to process and process, and the defects that the workers directly process the lower surface of the steel structure, part of positions cannot be processed, subsequent supplementary processing is needed and the like can be overcome.
In order to facilitate the movement switching of steel structures between the first and second roll- over frames 200, 300, in some embodiments of the present invention, the first and/or second roll-over mechanism is slidably disposed on the frame 100 for adjusting the distance between the first and second roll- over frames 200, 300.
Adopt the structure setting of this embodiment, when first roll-over stand 200, second roll-over stand 300 to vertical state overturn, can reduce the interval between the two through sliding to on moving the steel structure from first roll-over stand 200 to second roll-over stand 300, also can increase the interval between the two through sliding, in order to avoid rotating the in-process and taking place to interfere.
In some embodiments of the invention, the frame 100 is provided with a rectangular frame, inside of which a chute is provided, the second flipping mechanism is provided with a carriage 301, the carriage 301 is slidably mounted in the chute, and the second flipping mechanism 300 is rotatably mounted on the carriage 301.
By adopting the structure of the embodiment, the position of the first roll-over stand 200 is relatively fixed, and the movement of the position of the second roll-over stand 300 is realized by the sliding of the sliding frame 301, so that the distance between the first roll-over stand 200 and the second roll-over stand 300 is changed, and compared with the structure of controlling the movement of the first roll-over stand 200 and the second roll-over stand 300, one driving can be reduced, and the production cost is reduced. Meanwhile, the sliding frame 301 is installed in a sliding groove mode, stability is high, structural strength is enough, and the requirement for overturning of a steel structure can be met.
Considering that the steel structure may need to be polished and painted, so that dust is generated, and in order to avoid the influence of dust accumulation in the chute on sliding, in some embodiments of the present invention, the section of the chute is isosceles trapezoid, and the sliding frame 301 is provided with a roller adapted to the chute.
Adopt the structure setting of this embodiment, the structure setting of spout is difficult to the long-pending stifled dirt bits, also is convenient for manage simultaneously. The roller wheel adopts a solid rubber wheel.
In some embodiments of the present invention, a second supporting seat 302 is vertically disposed at a position of the carriage 301 close to the first roll-over stand 200, the second roll-over stand 300 is rotatably mounted at an upper end of the second supporting seat 302, the second roll-over mechanism is further provided with a second roll-over cylinder 304, one end of the second roll-over cylinder 304 is hinged to the second roll-over stand 300, the other end of the second roll-over cylinder 304 is hinged to the carriage 301, so as to control the second roll-over stand 300 to rotate through telescoping, and when the extension amount of the second roll-over cylinder 304 is zero, the second roll-over cylinder 304 cooperates with the second supporting seat 302 to support the second roll-over stand 300, so as to keep it in a horizontal state.
Adopt the structural arrangement of this embodiment, when the steel constructs and puts on second roll-over stand 300, support the steel structure through second supporting seat 302 for the steel constructs and is in the position that exceeds frame 100, makes things convenient for the workman to handle, process the steel structure, also conveniently hoists the steel structure.
Similarly, in some embodiments of the present invention, the first turnover mechanism includes a first supporting seat 201 vertically disposed on the rack 100, the first turnover frame 200 is rotatably mounted on an upper end of the first supporting seat 201, and the first turnover mechanism is further provided with a first turnover cylinder 203, one end of the first turnover cylinder 203 is hinged to the first turnover frame 200, and the other end of the first turnover cylinder 203 is hinged to the rack 100, so as to control the first turnover frame 200 to rotate through telescoping, and when the extension amount of the first turnover cylinder 203 is zero, the first turnover cylinder 203 cooperates with the first supporting seat 201 to support the first turnover frame 200, so as to keep it in a horizontal state.
Referring to fig. 1 and 2, the bottom of the first roll-over stand 200 and the bottom of the second roll-over stand 300 are provided with a mounting seat 202 in a downward protruding manner, the mounting seat 202 is kept at a certain distance from the end of the first roll-over stand 200 and the end of the second roll-over stand 300, and the first roll-over stand 200 and the second roll-over stand 300 are hinged with a first supporting seat 201 and a second supporting seat 302 through the mounting seat 202. Therefore, when the first turning frame 200 and the second turning frame 300 are controlled to rotate to the vertical state through the first turning oil cylinder 203 and the second turning oil cylinder 304, one ends of the first turning frame 200 and the second turning frame 300, which are close to each other, can be turned downwards, and interference of the first positioning structures and the second positioning structures on the first turning frame 200 and the second turning frame 300 can be avoided.
In some embodiments of the present invention, the first roll-over stand 200 is provided with first supporting portions 204 at two sides and first clamping portions 205 at two ends, the width of the first supporting portions 204 at two sides is smaller than the width of the steel structure, the distance between the first clamping portions 205 at two ends is larger than the length of the steel structure, and the two first clamping portions 205 can be adjusted to open and close for clamping the steel structure.
By adopting the structure of the embodiment, the first positioning structure is formed by the first supporting part 204 and the first clamping part 205, and when a steel structure is placed on the first roll-over stand 200, the steel structure is supported by the first supporting part 204 and is clamped and limited by the first clamping part 205. Wherein first clamping part 205 is located the upper and lower both ends when the steel constructs upset to vertical state to when overturning, the steady support steel constructs. The structure setting of this embodiment is adopted, can not lead to the fact the upper surface that constructs to the steel and shelter from, makes things convenient for workman's processing.
Similarly, in some embodiments of the present invention, the second roll-over stand 300 is provided with second supporting portions 305 at two sides and second clamping portions 306 at two ends, the width of the second supporting portions 305 at two sides is smaller than the width of the steel structure, the distance between the second clamping portions 306 at two ends is larger than the length of the steel structure, and the two second clamping portions 306 can be adjusted to open and close for clamping the steel structure.
It can be understood that, since the first and second supporting portions 204 and 305 are lower surfaces for supporting steel members and the first and second clamping portions 205 and 306 clamp both ends of the steel members, the height of the second clamping portion 306 is higher than that of the second supporting portion 305 and the height of the first clamping portion 205 is higher than that of the first supporting portion 204.
Since the first clamping portion 205 and the second clamping portion 306 both clamp steel structures, in some embodiments of the present invention, the first clamping portion 205 and the second clamping portion 306 are disposed in a staggered manner to facilitate the butt joint.
By adopting the structure of the embodiment, the steel structure with the processed upper surface can be placed on the first turnover frame 200, the steel structure can also be placed on the first turnover frame 200 for upper surface processing, after the processing is finished, the steel structure is clamped by the first clamping part 205, the first turnover frame 200 is controlled to be turned to the vertical state, meanwhile, the second turnover frame 300 is turned to the butted vertical state, the second clamping part 306 is controlled to be opened, the second clamping part 306 is positioned at the position capable of clamping the steel structure by sliding of the sliding frame 301, the second supporting part 305 is abutted against the steel structure, the second clamping part 306 clamps the steel structure, then the first clamping part 205 is loosened, the second turnover frame 300 is retreated, the two turnover frames are restored to the horizontal state again, namely, the steel structure can be turned over, the original lower surface of the steel structure is changed into the upper surface, and the processing by workers is convenient.
First supporting part 204, second supporting part 305 also can show the most region of steel structure lower surface when supporting the steel structure, make things convenient for the workman to construct whole the checking, analysis of carrying out to the steel to reasonable design processing scheme.
In some embodiments of the present invention, rubber pads are disposed near the proximal ends of the two first clamping portions 205 and the proximal ends of the two second clamping portions 306, so as to clamp and fix the steel structure.
In some embodiments of the present invention, rubber pads are disposed on the top of the first and second supporting portions 204, 305 to prevent damage to the steel structure, such as scratching the painted surface, when supporting the steel structure.
In the present invention, the movement of the carriage 301, the opening and closing control of the first clamping portion 205, and the opening and closing control of the second clamping portion 306 can be implemented by using corresponding driving structures in the prior art, which are not described herein too much.
In some embodiments of the present invention, in consideration of the structural form of the steel structure supported by the first and second tilting cylinders 203 and 304 being unstable, and the first and second tilting cylinders 203 and 304 being easily damaged, the frame 100 is provided with a first support 206 corresponding to the bottom of the first tilting frame 200 and a second support 303 corresponding to the bottom of the second tilting frame 300, for supporting when the first and second tilting frames 200 and 300 are horizontal, so as to prevent the first and second tilting cylinders 203 and 304 from being stressed.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111562461.4A CN114249100A (en) | 2021-12-20 | 2021-12-20 | a turning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111562461.4A CN114249100A (en) | 2021-12-20 | 2021-12-20 | a turning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114249100A true CN114249100A (en) | 2022-03-29 |
Family
ID=80793090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111562461.4A Pending CN114249100A (en) | 2021-12-20 | 2021-12-20 | a turning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114249100A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115367440A (en) * | 2022-10-27 | 2022-11-22 | 成都市和乐门业有限公司 | Door frame tilting mechanism and contain transition platform of this mechanism |
| CN115430988A (en) * | 2022-10-08 | 2022-12-06 | 重庆千能机械制造有限公司 | A side panel assembly that is convenient for turning over and assembling |
| CN117262773A (en) * | 2022-06-14 | 2023-12-22 | 海沃机械（中国）有限公司 | Container displacement mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008015121A1 (en) * | 2006-08-04 | 2008-02-07 | Sidel Participations | Container inverting device |
| CN106272949A (en) * | 2016-09-14 | 2017-01-04 | 湖南三快而居住宅工业有限公司 | Tipping arrangement, method for turning and preform production system |
| CN207030337U (en) * | 2017-08-11 | 2018-02-23 | 群峰智能机械股份公司 | A kind of partition plate overturns component with stacking |
| CN214494721U (en) * | 2020-12-14 | 2021-10-26 | 安徽中冶淮海装配式建筑有限公司 | Turning device of concrete prefabricated part |
-
2021
- 2021-12-20 CN CN202111562461.4A patent/CN114249100A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008015121A1 (en) * | 2006-08-04 | 2008-02-07 | Sidel Participations | Container inverting device |
| CN106272949A (en) * | 2016-09-14 | 2017-01-04 | 湖南三快而居住宅工业有限公司 | Tipping arrangement, method for turning and preform production system |
| CN207030337U (en) * | 2017-08-11 | 2018-02-23 | 群峰智能机械股份公司 | A kind of partition plate overturns component with stacking |
| CN214494721U (en) * | 2020-12-14 | 2021-10-26 | 安徽中冶淮海装配式建筑有限公司 | Turning device of concrete prefabricated part |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117262773A (en) * | 2022-06-14 | 2023-12-22 | 海沃机械（中国）有限公司 | Container displacement mechanism |
| CN115430988A (en) * | 2022-10-08 | 2022-12-06 | 重庆千能机械制造有限公司 | A side panel assembly that is convenient for turning over and assembling |
| CN115367440A (en) * | 2022-10-27 | 2022-11-22 | 成都市和乐门业有限公司 | Door frame tilting mechanism and contain transition platform of this mechanism |
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Application publication date: 20220329 |