CN111874064A - Horizontal transportation movable support for metal roof board - Google Patents
Horizontal transportation movable support for metal roof board Download PDFInfo
- Publication number
- CN111874064A CN111874064A CN202010501288.6A CN202010501288A CN111874064A CN 111874064 A CN111874064 A CN 111874064A CN 202010501288 A CN202010501288 A CN 202010501288A CN 111874064 A CN111874064 A CN 111874064A
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- CN
- China
- Prior art keywords
- limiting
- metal roof
- cylinder
- frame
- positioning
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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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/04—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2203/00—Grasping, holding, supporting the objects
- B62B2203/60—Positioning, means on a cart for loads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2203/00—Grasping, holding, supporting the objects
- B62B2203/70—Comprising means for facilitating loading or unloading
Abstract
The invention discloses a horizontal transportation movable bracket for a metal roof panel, which comprises: the top of the supporting frame is provided with a metal roof panel; the rolling mechanism comprises at least two pairs of rolling assemblies arranged below the supporting frame side by side, and each pair of rolling assemblies comprises two ball bearings, a rolling shaft arranged between the two ball bearings and a cylinder which is sleeved on the rolling shaft and rotates with the rolling shaft at the same time. The horizontal transportation system greatly improves the horizontal transportation efficiency on the premise of ensuring the safety of personnel and the quality of finished products, and has better economic benefit and social benefit.
Description
Technical Field
The invention relates to the technical field of house building installation, in particular to a movable support for horizontal transportation of a metal roof panel.
Background
In the field of building installation, the maximum length of a metal roof board can reach about 100 meters, on-site pressing is generally adopted due to road transportation limitation, the metal roof board needs to be horizontally transported to an installation position after being pressed and formed, manual transportation is generally needed in the prior art, and multiple workers can cooperatively transport the metal roof board. The following drawbacks exist: workers are required to walk on the purlines in the transportation process, and the safety is not guaranteed; the coordination of a plurality of workers in the transportation engineering is inconsistent, so that the panel is easy to bend, and the appearance and the installation quality of a finished product are influenced; the transport efficiency is low. Therefore, it is desirable to provide a vehicle that overcomes the above-mentioned drawbacks.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention also aims to provide the movable support for horizontally transporting the metal roof plate, which greatly improves the horizontal transportation efficiency and has better economic and social benefits on the premise of ensuring the safety of personnel and the quality of finished products.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a metal roof panel horizontal transport mobile bracket including:
the top of the supporting frame is provided with a metal roof panel;
the rolling mechanism comprises at least two pairs of rolling assemblies arranged below the supporting frame side by side, and each pair of rolling assemblies comprises two ball bearings, a rolling shaft arranged between the two ball bearings and a cylinder which is sleeved on the rolling shaft and rotates with the rolling shaft at the same time.
Preferably, the support frame is the cuboid frame of level setting, the cuboid frame comprises four chords and a plurality of web members, and four chords set up along the length direction of cuboid frame respectively, and a plurality of web members set up respectively between two adjacent chords and two relative chords.
Preferably, the rectangular parallelepiped frame has a length of 4000mm, a width of 700mm, and a height of 650 mm.
Preferably, both ball bearings are connected with the support frame through angle steel.
Preferably, the cylinder has an outer diameter of 128mm and a thickness of 4 mm.
Preferably, one side of the cuboid frame is rotatably provided with a pushing and holding piece near the top of the cuboid frame, the pushing and holding piece is a right-angled triangle frame, when one of the right-angled sides is horizontal and the other right-angled side is vertical, the pushing and holding piece is in a state of not receiving thrust, and when the pushing and holding piece rotates 90 degrees, the one of the right-angled sides is vertical and the other right-angled side is horizontal, the pushing and holding piece is in a state of receiving thrust.
Preferably, a plurality of positioning pieces are arranged at intervals on two chords of the top of the rectangular frame along the length direction of the rectangular frame, each positioning piece comprises a positioning cylinder, a telescopic rod, a positioning rod, a limiting cylinder, a limiting plate and a spring, the positioning cylinder is vertically and fixedly arranged on the chords, a plurality of limiting pieces are arranged on the inner wall of the positioning cylinder from bottom to top at intervals, the plurality of limiting pieces are all obliquely arranged upwards and coincide in the projection of a horizontal plane, the telescopic rod is fixedly arranged on the inner bottom surface of the positioning cylinder and is telescopic along the axial direction of the positioning cylinder, the positioning rod is vertically and fixedly arranged at the top end of the telescopic rod, the limiting cylinder is sleeved with the positioning rod, a bearing is sleeved on the periphery of the lower end of the limiting cylinder, a plurality of limiting blocks are arranged on the outer wall of the limiting cylinder from bottom to top at intervals, the plurality of limiting blocks are all inclined downwards, the vertical cross section of each, the limiting plate is horizontally arranged, one end of the limiting plate is fixedly connected with the top of the limiting cylinder, the spring is sleeved on the positioning rod, one end of the spring is fixedly connected with the telescopic rod, and the other end of the spring is fixedly connected with a bearing sleeved on the periphery of the bottom of the limiting cylinder; before a plurality of metal roof boards are placed on the top of the supporting frame, the limiting cylinder is rotated to enable the limiting blocks and the limiting sheets to be located on two opposite sides of the limiting cylinder respectively, and meanwhile, the projection of the limiting plates in the horizontal plane does not fall on the cuboid frame; when behind the polylith metal roof boarding is placed at the top of support frame, the pull-up spacing section of thick bamboo, the spring and/or the telescopic link extension extremely the lower surface of limiting plate flushes with the top surface that is located the metal roof boarding of the top, rotates spacing section of thick bamboo makes at least one stopper insert between two adjacent spacing pieces, simultaneously, the lower surface of limiting plate contacts with the top surface that is located the metal roof boarding of the top.
The invention at least comprises the following beneficial effects:
the technical scheme adopted by the invention is that the sliding support is adopted to move on the roof purline, the roof panel is placed on the sliding support, and an operator can push the movable support to quickly transfer materials on the roof. Compared with the operation of carrying by a plurality of operators in cooperation with manual work in the prior art, the horizontal transportation system greatly improves the horizontal transportation efficiency on the premise of ensuring the safety of personnel and the quality of finished products, and has better economic benefit and social benefit.
The metal roof board fixing device is provided with the positioning piece for fixing the metal roof boards stacked on the supporting frame, and the metal roof boards can be fixed at different stacking heights by matching the limiting block with the limiting piece, so that the metal roof boards are not required to be bound and fixed again, are firm in fixation, can be prevented from being dislocated and slipped, and are convenient to use.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a front view of the movable support according to one embodiment of the present invention;
FIG. 2 is a side view of the mobile bracket of one embodiment of the present invention;
fig. 3 is a schematic structural view of a positioning element according to one embodiment of the present invention when the positioning element does not limit a metal roof panel;
fig. 4 is a schematic structural view of the positioning element according to one embodiment of the present invention when the positioning element is used for limiting a metal roof panel.
Detailed Description
The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can practice the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof. It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "transverse," "longitudinal," "axial," "radial," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to orientations or positional relationships that are illustrated in the accompanying drawings, which are used for convenience in describing the present invention and to simplify the description, and 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, are not to be considered limiting of the present invention.
As shown in fig. 1-4, the present invention provides a horizontal transportation movable support for metal roof panels, comprising:
the top of the supporting frame is provided with a metal roof panel;
the rolling mechanism comprises at least two pairs of rolling assemblies arranged below the supporting frame side by side, wherein each pair of rolling assemblies comprises two ball bearings 21, a rolling shaft 22 arranged between the two ball bearings 21 and a cylinder 23 which is sleeved on the rolling shaft 22 and rotates with the rolling shaft 22.
When the movable support is used, the movable support is firstly hoisted to a roof and is arranged perpendicular to a roof purline, the cylinder 23 is contacted with the purline, a plurality of movable supports can be hoisted simultaneously due to the fact that the metal roof boards are long, the movable supports can be used as supporting points to transport the metal roof boards together, then the metal roof boards are stacked on the supporting frame layer by layer and are fixed by the rope, an operator ties a safety belt on the movable supports to push the movable supports to move forwards, and when the movable supports move, the cylinder 23 rolls forwards to transfer the metal roof boards to the mounting positions.
The technical scheme adopted by the invention is that the sliding support is adopted to move on the roof purline, the roof panel is placed on the sliding support, and an operator can push the movable support to quickly transfer materials on the roof. Compared with the operation of carrying by a plurality of operators in cooperation with manpower in the prior art, the horizontal transportation efficiency is greatly improved on the premise of ensuring the safety of personnel and the quality of finished products (ensuring that the metal roof panel is not bent in the transportation process), and the horizontal transportation method has better economic benefit and social benefit.
In another technical scheme, the support frame is the cuboid frame 11 of level setting, cuboid frame 11 comprises four chords 121 and a plurality of web members 122, and four chords 121 set up along cuboid frame 11's length direction respectively, and a plurality of web members 122 set up respectively between two adjacent chords 121 and two relative chords 121, and web members 122 can also the slope setting by vertical setting, promotes the steadiness.
In another technical solution, the length of the rectangular parallelepiped frame 11 is 4000mm, the width is 700mm, and the height is 650mm, which is a preferable setting in practical use.
In another technical scheme, two ball bearings 21 all through the angle steel with the support frame is connected, and the angle steel passes through bolt and nut and is connected with the support frame, and ball bearing 21 and angle steel rigid coupling provide rolling condition for drum 23.
In another technical scheme, the outer diameter of the cylinder 23 is 128mm, the thickness is 4mm, and the cylinder is smoothly matched with the support frame to roll.
In another technical scheme, one side of cuboid frame 11 is close to its top rotatable be equipped with push away the holding 3, push away the holding 3 and be right triangle frame, when one of them right-angle side level, another right-angle side is vertical, push away the holding and be in the state that does not receive thrust, when push away the holding and rotate 90, make this one of them right-angle side vertical, when this another right-angle side level, push away the holding and be in the state that receives thrust. The rotational modes of the pushing and holding member 3 are many, for example, a pin shaft 50 is inserted through the right-angled portion of the pushing and holding member 3, a pair of fixing pieces 51 are downwardly inclined and extended from the chord 121 at the top of the rectangular parallelepiped frame 11, the pair of fixing pieces 51 are arranged in parallel and oppositely, two ends of the pin shaft 50 inserted through the pushing and holding member 3 are respectively fixed on the fixing pieces 51, and the pushing and holding member 3 can realize 90-degree rotation by the pin shaft 50. When the metal roof board is installed on the support frame, the pushing and holding part 3 only receives the gravity of the pushing and holding part, one of the right-angle sides is horizontal and the other right-angle side is vertical due to the gravity of the pushing and holding part, and the metal roof board is integrally positioned below the chord member at the top of the cuboid frame 11 and is convenient to place on the support frame. After a plurality of metal roof boards are stacked, the operating personnel manually push the holding part 3 to rotate 90 degrees upwards, so that the operating personnel are originally at the level of a vertical right-angle edge, the right-angle edge which is originally at the level is close to the cuboid frame 11 to be vertical, and the operating personnel can push the holding part 3 by hand and further advance the supporting frame integrally above the chord at the top of the cuboid frame 11.
In another technical solution, a plurality of positioning members 4 are arranged at intervals on two chords of the top of the rectangular parallelepiped frame 11 along the length direction thereof, each positioning member 4 includes a positioning tube 41, an expansion link 42, a positioning rod 43, a limiting tube 44, a limiting plate 45, and a spring 46, the positioning tube 41 is vertically fixed on the chords, a plurality of limiting pieces 48 are arranged at intervals on the inner wall of the positioning tube 41 from bottom to top, the limiting pieces 48 are all inclined upward and coincide with each other in the projection of the horizontal plane, the expansion link 42 is fixed on the bottom surface inside the positioning tube 41 and extends and retracts along the axial direction of the positioning tube 41, the positioning rod 43 is vertically fixed on the top end of the expansion link 42, the positioning rod 43 is sleeved on the limiting tube 44, a bearing 47 is sleeved on the periphery of the lower end of the limiting tube 44 (the bearing 47 here is not the same as the ball bearing 21, but the bearing 47 here can also be replaced by a ball bearing, as long as the rotation of the limiting cylinder 44 can be realized), a plurality of limiting blocks 49 are arranged on the outer wall of the limiting cylinder 44 at intervals from bottom to top, the limiting blocks 49 are all inclined downwards, the vertical section of each limiting block 49 is triangular, one limiting block 49 is positioned between two adjacent limiting sheets 48, the limiting plate 45 is horizontally arranged, one end of the limiting plate is fixedly connected with the top of the limiting cylinder 44, the spring 46 is sleeved on the positioning rod 43, one end of the spring is fixedly connected with the telescopic rod 42, and the other end of the spring is fixedly connected with a bearing sleeved on the periphery of the bottom of the limiting cylinder 44; before a plurality of metal roof boards are placed on the top of the support frame, the limiting cylinder 44 is rotated to enable the limiting blocks 49 and the limiting sheets 48 to be respectively positioned on two opposite sides of the limiting cylinder 44, and meanwhile, the projection of the limiting plate 45 in the horizontal plane does not fall on the cuboid frame 11; when behind the polylith metal roof boarding is placed at the top of support frame, the pull-up spacing section of thick bamboo 44, spring 46 and/or telescopic link 42 extension extremely the lower surface of limiting plate 45 flushes with the top surface that is located the metal roof boarding of the top, rotates spacing section of thick bamboo 44 makes at least one stopper 49 insert between two adjacent spacing pieces 48, simultaneously, the lower surface of limiting plate 45 contacts with the top surface that is located the metal roof boarding of the top.
In this embodiment, the length of the positioning rod 43 is greater than the sum of the lengths of the telescopic rod 42 and the spring 46 when both extend to the limit, so as to ensure that the limiting cylinder 44 does not slip off the positioning rod 43. When the roof support is used, when a plurality of metal roof boards are not placed at the top of the support frame, the positioning piece 4 does not need to exert a positioning function and can be folded at one side of the cuboid frame 11. The folding state is that the limiting blocks 49 and the limiting sheets 48 are respectively positioned at two opposite sides of the limiting cylinder 44, meanwhile, the projection of the limiting plate 45 in the horizontal plane does not fall on the cuboid frame 11, and the limiting plate 45 is flush with the top of the cuboid frame 11, so that the metal roof boards can be conveniently stacked. After placing polylith metal roof boarding at the top of support frame, pull up spacing section of thick bamboo 44, spring 46 and/or telescopic link 42 extension, the lower surface of limiting plate 45 flushes with the top surface that is located the metal roof boarding of the top, rotate spacing section of thick bamboo 44 and make at least one stopper 49 insert between two adjacent spacing pieces 48, simultaneously, the lower surface of limiting plate 45 and the top surface contact of the metal roof boarding that is located the top realize the chucking location to metal roof boarding. When unloading is needed, the limiting cylinder 44 is rotated to enable the limiting blocks 49 and the limiting sheets 48 to be located on two opposite sides of the limiting cylinder 44 respectively, meanwhile, the projection of the limiting plate 45 in the horizontal plane does not fall on the cuboid frame 11, the limiting plate 45 does not have the function of restraining and positioning the metal roof plate, and the metal roof plate is convenient to unload. This technical scheme has set up setting element 4 for metal roof board to stacking on the support frame is fixed, through stopper 49 and spacing piece 48's cooperation, can satisfy the different stack height to metal roof board fixed, need not to fix with the rope ligature once more, and fixed firm, prevents metal roof board dislocation slippage, convenient to use.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (7)
1. Metal roof boarding horizontal transportation movable support, its characterized in that includes:
the top of the supporting frame is provided with a metal roof panel;
the rolling mechanism comprises at least two pairs of rolling assemblies arranged below the supporting frame side by side, and each pair of rolling assemblies comprises two ball bearings, a rolling shaft arranged between the two ball bearings and a cylinder which is sleeved on the rolling shaft and rotates with the rolling shaft at the same time.
2. A metal roof panel horizontal transportation movable support according to claim 1, wherein the support frame is a horizontally disposed rectangular parallelepiped frame, the rectangular parallelepiped frame is composed of four chords and a plurality of web members, the four chords are respectively disposed along a length direction of the rectangular parallelepiped frame, and the plurality of web members are respectively disposed between two adjacent chords and two opposite chords.
3. A metal roof panel horizontal transport mobile support according to claim 2, characterised in that said rectangular parallelepiped frame has a length of 4000mm, a width of 700mm and a height of 650 mm.
4. A metal roof panel horizontal transport mobile bracket according to claim 1, characterised in that both ball bearings are connected to the support bracket by angle steel.
5. A metal roof panel horizontal transport mobile bracket according to claim 1, characterised in that said cylinder has an outer diameter of 128mm and a thickness of 4 mm.
6. A metal roof panel horizontal transportation movable support frame according to claim 2, wherein a pushing and holding member is rotatably provided on one side of the rectangular parallelepiped frame near the top thereof, the pushing and holding member is a right-angled triangular frame, the pushing and holding member is in a state of not receiving a pushing force when one of the right-angled sides is horizontal and the other right-angled side is vertical, and the pushing and holding member is in a state of receiving a pushing force when the pushing and holding member is rotated by 90 ° so that the one right-angled side is vertical and the other right-angled side is horizontal.
7. The metal roof panel horizontal transportation movable support frame according to claim 2, wherein a plurality of positioning members are arranged at intervals on two chords of the top of the rectangular frame along the length direction of the rectangular frame, each positioning member comprises a positioning cylinder, a telescopic rod, a positioning rod, a limiting cylinder, a limiting plate and a spring, the positioning cylinder is vertically and fixedly arranged on the chords, a plurality of limiting plates are arranged at intervals on the inner wall of the positioning cylinder from bottom to top, the limiting plates are all inclined upwards and coincide in the projection of a horizontal plane, the telescopic rod is fixedly arranged on the inner bottom surface of the positioning cylinder and extends and retracts along the axial direction of the positioning cylinder, the positioning rod is vertically and fixedly arranged at the top end of the telescopic rod, the limiting cylinder is sleeved with the positioning rod, a bearing is sleeved on the periphery of the lower end of the limiting cylinder, a plurality of limiting blocks are arranged at intervals from bottom to top on the outer wall of the limiting cylinder, and, the vertical section of each limiting block is triangular, one limiting block is positioned between two adjacent limiting sheets, the limiting plates are horizontally arranged, one end of each limiting plate is fixedly connected with the top of the limiting cylinder, the spring is sleeved on the positioning rod, one end of each spring is fixedly connected with the telescopic rod, and the other end of each spring is fixedly connected with a bearing sleeved on the periphery of the bottom of the limiting cylinder; before a plurality of metal roof boards are placed on the top of the supporting frame, the limiting cylinder is rotated to enable the limiting blocks and the limiting sheets to be located on two opposite sides of the limiting cylinder respectively, and meanwhile, the projection of the limiting plates in the horizontal plane does not fall on the cuboid frame; when behind the polylith metal roof boarding is placed at the top of support frame, the pull-up spacing section of thick bamboo, the spring and/or the telescopic link extension extremely the lower surface of limiting plate flushes with the top surface that is located the metal roof boarding of the top, rotates spacing section of thick bamboo makes at least one stopper insert between two adjacent spacing pieces, simultaneously, the lower surface of limiting plate contacts with the top surface that is located the metal roof boarding of the top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010501288.6A CN111874064B (en) | 2020-06-04 | 2020-06-04 | Horizontal transportation movable support for metal roof board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010501288.6A CN111874064B (en) | 2020-06-04 | 2020-06-04 | Horizontal transportation movable support for metal roof board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111874064A true CN111874064A (en) | 2020-11-03 |
| CN111874064B CN111874064B (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010501288.6A Active CN111874064B (en) | 2020-06-04 | 2020-06-04 | Horizontal transportation movable support for metal roof board |
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| CN (1) | CN111874064B (en) |
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| CN207843005U (en) * | 2018-02-06 | 2018-09-11 | 四川德顿郎陈暖通设备有限公司 | A kind of air-conditioning telephone-moving transfer device |
| CN108839687A (en) * | 2018-07-05 | 2018-11-20 | 吴保康 | A kind of transfer device carried for oxygen cylinder in carbon sulphur tester |
| CN209515968U (en) * | 2019-04-19 | 2019-10-18 | 无锡安田精密机械有限公司 | A kind of filter cavity clamp for machining |
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| CN210363950U (en) * | 2019-05-06 | 2020-04-21 | 赵风志 | Building board transport handcart |
| CN210530178U (en) * | 2019-04-19 | 2020-05-15 | 上海沪江建筑工程有限公司 | Roof boarding fortune equipment |
-
2020
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Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2545776B1 (en) * | 1983-05-11 | 1989-01-06 | Hervieu | |
| WO2004043764A2 (en) * | 2002-11-08 | 2004-05-27 | Smarte Carte, Inc. | Brake assembly and control mechanism for a cart, and method |
| CN207535937U (en) * | 2017-10-27 | 2018-06-26 | 湖北神东建设有限公司 | A kind of trolley for carrying construction equipment |
| CN207737339U (en) * | 2017-12-29 | 2018-08-17 | 吴江市双伊纺织有限公司 | It is a kind of can be to the weaving trolley of cloth clamping |
| CN108068857A (en) * | 2018-01-10 | 2018-05-25 | 马宁 | A kind of windshield transporter for automobile making |
| CN207843005U (en) * | 2018-02-06 | 2018-09-11 | 四川德顿郎陈暖通设备有限公司 | A kind of air-conditioning telephone-moving transfer device |
| CN108839687A (en) * | 2018-07-05 | 2018-11-20 | 吴保康 | A kind of transfer device carried for oxygen cylinder in carbon sulphur tester |
| CN209546804U (en) * | 2018-09-27 | 2019-10-29 | 安卡精密机械（天津）股份有限公司 | A kind of processing chocolate decorative pattern waves trolley with ice cream |
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| CN210363950U (en) * | 2019-05-06 | 2020-04-21 | 赵风志 | Building board transport handcart |
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| Publication number | Publication date |
|---|---|
| CN111874064B (en) | 2022-03-18 |
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