CN211517873U - Interlocking sheet prefabricated mould platform - Google Patents
Interlocking sheet prefabricated mould platform Download PDFInfo
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- CN211517873U CN211517873U CN201922274907.8U CN201922274907U CN211517873U CN 211517873 U CN211517873 U CN 211517873U CN 201922274907 U CN201922274907 U CN 201922274907U CN 211517873 U CN211517873 U CN 211517873U
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Abstract
The utility model provides an interlocking plate prefabricating mould platform, which comprises an upper mould and a lower mould; the length and width dimensions of the lower die and the upper die are the same, and the lower die and the upper die can be aligned and locked up and down; the upper die comprises an upper die body, and a plurality of penetrating upper die holes are uniformly formed in the upper die body; the lower die comprises a lower die frame, a plurality of lower die grooves are uniformly formed in the lower die frame, the number of the lower die grooves is the same as that of the upper die holes, and the lower die grooves and the upper die holes are arranged in corresponding positions, so that when the lower die and the lower die are aligned up and down, the lower die grooves and the upper die holes are aligned with each other; the locking device is matched with the hook lugs to lock the upper die and the lower die. The utility model discloses an utilize couple and locking device to improve the firmness of locking between last mould and the lower mould, avoided the shaking table vibration to overflow of mud down to guaranteed the rigidity of last mould and lower mould through the strengthening rib, improved the yields of interlocking piece preparation.
Description
Technical Field
The utility model relates to an interlocking piece preparation equipment field, concretely relates to interlocking piece prefabricated mould platform.
Background
The laying of soft mattress is a new technology applied to the bottom protection of hydraulic engineering in recent years. The structure of the raft mainly comprises a sand rib soft raft, a concrete interlocking block soft raft, a mixed soft raft and the like. The concrete interlocking block soft mattress material adopts needle-punched composite geotextile. The pressure load of the raft is connected with the reinforced belt of the raft into a whole by adopting a concrete interlocking block. The concrete interlocking pieces are manufactured by connecting ropes into a rope net which is buried in a concrete block, and a plurality of single concrete blocks are connected together by pouring on a land prefabricated site to form the flexible single concrete interlocking pieces. The current dimensions of the interlocking pieces are 4.5m by 9.5m, 4.0m by 5.0m, 6.5m by 5.0m, etc. The single concrete interlocking blocks are hung on the operation platform of the laying ship through the frame to be integrally connected to form a soft concrete interlocking block row, the size of the row body is generally 35m in width, and the length of the row body is up to 140m at present. The soft raft has the advantages of integral casting, convenient storage and transportation, integral laying and high degree of mechanization. Although the manufacturing cost of the concrete interlocking block is slightly higher than that of the sand rib soft body row, the concrete interlocking block has strong capability of adapting to multidirectional deformation of the beach land and is suitable for scouring areas and the beach lands which are serious.
Due to the particularity of the concrete interlocking block type, the mold table is relatively complex and has various types. The currently used die table types can be mainly divided into an assembled type and an integral type. The assembled die table is common, and Chinese patent (CN2784162Y) discloses a concrete interlocking sheet template which comprises a box-shaped template, wherein the box-shaped template is divided into an upper layer and a lower layer, a bottom die and a top die are arranged on the upper layer and the lower layer, a rope hole is formed in the lower part of the top die, the bottom die is welded with the bottom surface of a steel plate, and the template forms a box body structure with an upper opening and a lower closing after being assembled; the bottom die is fixed, the top die is movable, and sponge strips are adhered to the abutted seams between the top die and the bottom die; the adjacent surfaces of the template are in inclined surface transition, and the intersection angle of the adjacent surfaces forms an obtuse angle. However, the concrete interlocking sheet template mainly has the following technical defects:
(1) the rigidity of the template is low, and the template is easy to deform in a vibration process, particularly when a vibration table is used for vibration in automatic production, so that the size deviation of a component is large, slurry leakage is caused, and honeycombs are formed.
(2) The connection between the bottom die and the top die is not firm, and the dislocation of the upper die and the lower die is easily caused in the vibration process, so that slurry leakage is caused, a honeycomb is formed, and the quality of a finished product is not up to the standard.
Due to the problems, the appearance quality of the produced interlocking blocks is poor, and especially the honeycomb phenomenon caused by slurry leakage also has certain influence on the internal quality of the interlocking blocks in the batch production, especially the automatic and streamlined production process of the existing mold.
Therefore, how to provide an interlocking piece prefabricating mold table which has good structural rigidity, is firm in locking of an upper mold and a lower mold and can be applied to automatic production is a technical problem to be solved urgently by technical personnel in the field at present.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a structure rigidity is good, go up the prefabricated mould platform of interlocking piece that the locking of lower mould is firm, can use automated production to solve the problem among the prior art. The technical scheme is as follows:
the interlocking plate prefabricating die table is characterized by comprising an upper die and a lower die; the length and width dimensions of the lower die and the upper die are the same, and the upper die and the lower die can be aligned and locked up and down;
the upper die comprises an upper die body, and a plurality of penetrating upper die holes are uniformly formed in the upper die body;
the lower die comprises a lower die frame, a plurality of lower die grooves are uniformly formed in the lower die frame, the number of the lower die grooves is the same as that of the upper die holes, and the arrangement positions of the lower die grooves and the upper die holes correspond to each other, so that the lower die grooves and the upper die holes are aligned with each other when the upper die and the lower die are aligned up and down;
the locking device is characterized in that a plurality of hook lugs are arranged on the bottom surface of the upper die body, and a locking device is arranged on the lower die frame and can be matched with the hook lugs to be locked with each other, so that the upper die and the lower die are locked.
Preferably, the upper die hole is formed with a protruding edge on the bottom surface of the upper die body, and when the upper die is stacked on the lower die, the protruding edge extends into the upper edge of the lower die.
Preferably, the periphery of the upper die body is provided with a flange, and the flange is provided with a plurality of hangers.
Preferably, go up the mould body bottom surface and be provided with a plurality of strengthening rib with great ease, the strengthening rib is used for the intensity of mould in the reinforcing to avoid going up the mould and totally warping at the vibration process, and then influence the quality of interlocking piece.
Preferably, the periphery of the lower die groove is provided with a rope threading groove for threading in the manufacturing process of the interlocking block.
Preferably, the periphery of the lower die frame is provided with a plurality of guide lugs, and in the process of aligning the upper die and the lower die, the guide lugs are used for limiting the upper die and guiding the upper die to be stacked at the correct position on the lower die.
Preferably, a plurality of the hook lugs are arranged on the bottom surface of the upper die body 1 in a straight line along the width direction of the upper die to form a plurality of rows of hook lugs.
Preferably, a top plate is fixedly covered on the upper surface of the lower die frame, and a plurality of lower die grooves are formed in the top plate; the top plate is provided with a plurality of hollow parts which are linearly arranged on the top plate along the width direction of the lower die to form a plurality of rows of hollow parts;
the hollow portions are the same as the hook ears in number, the hollow portions correspond to the hook ears in arrangement positions, and therefore when the upper die and the lower die are aligned and locked up, the hook ears are sunk into the hollow portions.
Preferably, the locking device comprises two nut sleeves, two sleeves, a sliding rod and a handle;
the nut sleeve and the sleeve are both hollow cylindrical structures; the inner diameters of the nut sleeve and the sliding rod are slightly smaller than the inner diameter of the sleeve;
the inner wall of the nut sleeve is provided with internal threads, and the handle is provided with external threads meshed with the nut sleeve, so that the handle can be screwed in and out of the nut sleeve;
the two nut sleeves are respectively fixed with the two sleeves, and the nut sleeves are superposed with the central axis of the sleeves; the two sleeves are respectively arranged at two ends of the sliding rod, and the end parts of the sliding rod are sleeved in the sleeves in a sliding manner;
the two nut sleeves are respectively fixed on the outer sides of the left end and the right end of the lower die frame, the two sleeves are respectively fixed on the inner sides of the left end and the right end of the lower die frame, and the sliding rod extends between the two sleeves along the width direction of the lower die frame;
the number of the locking devices is equal to the number of the rows of the hollow parts, and the lower part of each row of the hollow parts is provided with one locking device correspondingly;
a plurality of hooks are uniformly arranged on the sliding rod, the number of the hooks is equal to that of the hollow parts on each row of hollow parts, and one hook is exposed in any hollow part; each hook can hook into the hook lug in the hollow part to realize the locking of the upper die and the lower die.
Preferably, the lower die frame is provided with a plurality of reinforcing ribs, and the reinforcing ribs are used for enhancing the strength of the lower die so as to prevent the lower die from being deformed in the vibration process and further influence the quality of the interlocking block.
The utility model discloses the beneficial technological effect who obtains:
(1) the utility model discloses an utilize couple and locking device to improve the firmness of locking between last mould and the lower mould, avoided overflowing of shaking table vibration lower mud, improved the yields of interlocking piece preparation.
(2) The utility model discloses a set up the rigidity that the strengthening rib had guaranteed last mould and lower mould on last mould and lower mould, avoid the deformation of last mould and lower mould, improve the yields of interlocking piece.
(3) The locking device in this application once only realizes locking and unblock on a straight line through the litter, and operating efficiency is high, and maneuverability is good.
The foregoing description is only an overview of the technical solutions of the present application, so that the technical means of the present application can be more clearly understood and the present application can be implemented according to the content of the description, and in order to make the above and other objects, features and advantages of the present application more clearly understood, the following detailed description is made with reference to the preferred embodiments of the present application and the accompanying drawings.
The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a front view of a middle upper mold of the present invention;
fig. 2 is a bottom view of the middle upper die of the present invention;
FIG. 3 is a partially enlarged view of the upper mold in the bottom view of the present invention;
FIG. 4 is a front view of the middle and lower molds of the present invention;
FIG. 5 is a partially enlarged view of the main view of the middle and lower molds of the present invention;
fig. 6 is a front view of the locking device of the present invention;
fig. 7 is a cross-sectional view of a locking device of the present invention;
FIG. 8 is a partial enlarged view of a cross-sectional view of the locking device of the present invention;
wherein: 1-upper mould; 11-hanging a lug; 12-a flange; 13-die hole mounting; 14-reinforcing ribs; 15-extending edge; 16-hook ear; 2-lower mould; 21-a guide ear; 22-lower die cavity; 23-a buffer column; 24-a locking device; 25-rope threading grooves; 241-nut sleeve; 242-a sleeve; 243-slide rod; 244-hooks; 245-handle.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. In the following description, specific details such as specific configurations and components are provided only to help the embodiments of the present application be fully understood. Accordingly, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for the sake of clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "the embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrase "one embodiment" or "the present embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Example one
An interlocking sheet prefabricating die table comprises an upper die 1 and a lower die 2. The length and width dimensions of the lower die 1 and the upper die 2 are the same, and the upper die 1 and the lower die 2 are aligned and locked up and down in the using process.
Referring to fig. 1-3, the upper die 1 includes an upper die body. Evenly be provided with the last nib 13 that a plurality of runs through on the last mould body to be formed with on last mould body bottom surface and stretch out along 15, in interlocking piece manufacturing process, when going up mould 1 and stacking on lower mould 2, stretch out along 15 and stretch into to 2 upper edges of lower mould, cement thick liquids pass through and pour into the mould in last module 13, stretch out along 15 and be used for avoiding thick liquids to ooze from the gap between last mould 1 and the lower mould 2.
The periphery of the upper die body is provided with a flange 2, the flange 2 is provided with a plurality of hanging lugs 11, and in the interlocking block manufacturing process, the crane can hoist the upper die 1 through the hanging lugs 11.
The bottom surface of the upper die body is vertically and horizontally provided with a plurality of reinforcing ribs 14, and the reinforcing ribs 14 are used for enhancing the strength of the upper die 1 so as to avoid the total deformation of the upper die 1 in the vibration process and further influence the quality of the interlocking block.
The bottom surface of the upper die body 1 is further provided with a plurality of hook lugs 16, and the hook lugs 16 are used for aligning and locking the upper die 1 and the lower die 2. It should be noted that a plurality of the hook lugs 16 are arranged on the bottom surface of the upper die body 1 along the width direction of the upper die 1 in a straight line to form a plurality of rows of hook lugs 16.
Referring to fig. 4-5, the lower die 2 includes a lower die frame, a top plate covers and is fixed on the upper surface of the lower die frame, a plurality of lower die grooves 22 are uniformly arranged on the top plate, the number of the lower die grooves 22 is the same as that of the upper die holes 13, and the arrangement positions of the lower die grooves 22 and the upper die holes 13 correspond to each other, so that when the upper die 1 and the lower die 2 are aligned and locked up and down, the lower die grooves 22 and the upper die holes 13 are aligned with each other.
The periphery of the lower die cavity 22 is provided with a rope threading groove 25 for threading in the interlocking block manufacturing process.
The periphery of the lower die frame is provided with a plurality of guide lugs 21, and in the process that the upper die 1 and the lower die 2 are aligned with each other, the guide lugs 21 are used for limiting the upper die 1 and guiding the upper die 1 to be stacked at the correct position on the lower die 1.
The front section and the rear section of the lower die frame are respectively provided with a plurality of buffer columns 23, and the buffer columns 23 are used for avoiding rigid collision between the front die table and the rear die table in the interlocking piece prefabricating process.
The top plate is provided with a plurality of hollow parts which are linearly arranged on the top plate along the width direction of the lower die 2 to form a plurality of hollow parts.
It should be noted that the number of the hollow portions is the same as that of the hook lugs 16, and the positions of the hollow portions and the positions of the hook lugs 16 correspond to each other, so as to ensure that the hook lugs 16 sink into the hollow portions when the upper die 1 and the lower die 2 are aligned and locked up and down.
Referring to fig. 6-8, the lower mold 2 further comprises a locking device 24, and the locking device 24 comprises two nut sleeves 241, two sleeves 242, a slide bar 243 and a handle 245.
The nut case 241 and the sleeve 242 each have a hollow cylindrical structure. The inner diameters of the nut sleeve 241 and the sliding rod 243 are slightly smaller than the inner diameter of the sleeve 242.
The inner wall of the nut sleeve 241 is provided with internal threads, and the handle 245 is provided with external threads meshed with the nut sleeve 241, so that the handle 245 can be screwed in and out of the nut sleeve 241.
The two nut sleeves 241 are respectively fixed with the two sleeves 242, and the central axes of the nut sleeves 241 and the sleeves 242 are overlapped. The two sleeves 242 are respectively disposed at two ends of the sliding rod 243, and the ends of the sliding rod 243 are slidably sleeved in the sleeves 242.
The two nut caps 241 are fixed to the outer sides of the left and right ends of the lower mold frame, the two sleeves 242 are fixed to the inner sides of the left and right ends of the lower mold frame, and the slide bar 243 extends in the width direction of the lower mold frame between the two sleeves 242.
It should be noted that there are a plurality of locking devices 24, the number of the locking devices 24 is equal to the number of the rows of the hollow-out portions, and a locking device 24 is corresponding to the lower portion of any row of the hollow-out portions.
The sliding rod 243 is uniformly provided with a plurality of hooks 244, the number of the hooks 244 is equal to the number of the hollow parts on each row of hollow parts, and one hook 244 is exposed in any hollow part. Each hook 244 can be hooked into the hook lug 16 in the hollow part to lock the upper die 1 and the lower die 2.
Preferably, the hooks 244 are flat hook structures.
Preferably, the lower die frame is provided with a plurality of reinforcing ribs, and the reinforcing ribs are used for enhancing the strength of the lower die 2 so as to prevent the lower die 2 from being deformed in the vibration process and further influence the quality of the interlocking block.
Example two
On the basis of the first embodiment, the embodiment provides a using method of an interlocking sheet prefabricating mold table, which specifically comprises the following steps:
(1) hooking the hanging lug 11 of the upper die 1 through a crane, and lifting the upper die 1;
(2) under the guidance of the guide lugs 21, the upper die 1 is placed on the lower die 2, so that the upper die 1 and the lower die 2 are aligned up and down; at this time, the extending edge 15 abuts against the upper edge of the lower mold cavity 22, and the hook lug 16 extends into the hollow part;
(3) an operator screws a handle 245 into a nut sleeve 241 on one side of the lower die 2, which is far away from the locking side of the hook 244, along with the screwing of the handle 245, the end part of the handle 245 enters the sleeve 242 and abuts against the end part of the sliding rod 243, along with the further screwing of the handle 245, the sliding rod 243 moves towards the other side of the lower die 2, the hook 244 on the sliding rod 243 is driven to move towards the other side of the lower die 2 in the hollow part, and the hook 244 is clamped into the hook lug 16, so that the upper die 1 and the lower die 2 are locked;
(4) after locking is finished, slurry is injected into the mold from the upper mold hole, and manufacturing of the interlocking piece is further realized through steps of vibration, maintenance and the like;
(5) when the interlocking piece is manufactured and demolding is needed, an operator screws a handle 245 into a nut sleeve 241 on the other side of the lower die 2, along with the screwing of the handle 245, the end part of the handle 245 enters a sleeve 242 and is pressed against the end part of a sliding rod 243, along with the further screwing of the handle 245, the sliding rod 243 moves towards the other side of the lower die 2, a hook 244 on the sliding rod 243 is driven to move towards the other side of the lower die 2 in a hollow part, and then the hook 244 is withdrawn from a hook lug 16, so that the upper die 1 and the lower die 2 are unlocked;
(6) an operator hooks the hanging lug 11 of the upper die 1 through the crane, and lifts the upper die 1 to separate the upper die 1 from the lower die 2.
The previous description of all disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The interlocking plate prefabricating die table is characterized by comprising an upper die (1) and a lower die (2); the length and width dimensions of the lower die (2) and the upper die (1) are the same, and the upper die (1) and the lower die (2) can be aligned and locked up and down;
the upper die (1) comprises an upper die body, and a plurality of penetrating upper die holes (13) are uniformly formed in the upper die body;
the lower die (2) comprises a lower die frame, a plurality of lower die grooves (22) are uniformly formed in the lower die frame, the number of the lower die grooves (22) is the same as that of the upper die holes (13), and the arrangement positions of the lower die grooves (22) and the upper die holes (13) correspond to each other, so that when the upper die (1) and the lower die (2) are aligned up and down, the lower die grooves (22) and the upper die holes (13) are aligned with each other;
go up mould body bottom surface and be provided with a plurality of hook (16), be provided with locking device (24) on the lower mould frame, locking device (24) can mutually support the locking with hook (16), realize going up the locking of mould (1) and lower mould (2).
2. An interlocking plate prefabrication die platform according to claim 1, characterized in that the upper die hole (13) is formed with a protruding edge (15) on the bottom surface of the upper die body, and when the upper die (1) is stacked on the lower die (2), the protruding edge (15) protrudes into the upper edge of the lower die (2).
3. An interlocking plate prefabrication die table according to claim 1, characterized in that, the upper die body is provided with a flange (12) at its periphery, and a plurality of lugs (11) are provided on the flange (12).
4. The interlocking plate prefabrication die table according to claim 1, wherein a plurality of reinforcing ribs (14) are vertically and horizontally arranged on the bottom surface of the upper die body, and the reinforcing ribs (14) are used for enhancing the strength of the upper die (1) so as to prevent the upper die (1) from deforming in the vibration process and further influencing the quality of the interlocking block.
5. An interlocking plate prefabrication mould platform according to claim 1, characterized in that the lower mould groove (22) is provided with a rope threading groove (25) at its periphery for rope threading during interlocking block making.
6. The interlocking plate prefabrication die platform according to claim 1, characterized in that a plurality of guide lugs (21) are arranged on the periphery of the lower die frame, and in the process that the upper die (1) and the lower die (2) are aligned with each other, the guide lugs (21) are used for limiting the upper die (1) and guiding the upper die (1) to be stacked at the correct position on the lower die (2).
7. An interlocking plate prefabrication die platform according to claim 1, characterized in that a plurality of said hook lugs (16) are arranged on the bottom surface of the upper die body in a straight line along the width direction of the upper die (1) to form a plurality of rows of hook lugs (16).
8. The interlocking plate prefabricating die table according to claim 1, wherein a top plate is fixedly covered on the upper surface of the lower die frame, and a plurality of lower die grooves (22) are formed in the top plate; the top plate is provided with a plurality of hollow parts which are linearly arranged on the top plate along the width direction of the lower die (2) to form a plurality of rows of hollow parts;
the quantity of fretwork portion and hook ear (16) is the same, and the fretwork portion corresponds each other with the position that sets up of hook ear (16) to when guaranteeing to go up mould (1) and lower mould (2) and align the locking from top to bottom, hook ear (16) are absorbed in the fretwork portion.
9. An interlocking plate prefabrication mould station according to claim 8, characterised in that said locking device (24) comprises two nut sets (241), two sleeves (242), a slide bar (243) and a handle (245);
the nut sleeve (241) and the sleeve (242) are both hollow cylindrical structures; the inner diameters of the nut sleeve (241) and the sliding rod (243) are slightly smaller than the inner diameter of the sleeve (242);
the inner wall of the nut sleeve (241) is provided with internal threads, the handle (245) is provided with external threads which are meshed with the nut sleeve (241), and the handle (245) can be screwed in and out in the nut sleeve (241);
the two nut sleeves (241) are respectively fixed with the two sleeves (242), and the central axes of the nut sleeves (241) and the sleeves (242) are superposed; the two sleeves (242) are respectively arranged at two ends of the sliding rod (243), and the end part of the sliding rod (243) is sleeved in the sleeve (242) in a sliding manner;
the two nut sleeves (241) are respectively fixed at the outer sides of the left end and the right end of the lower die frame, the two sleeves (242) are respectively fixed at the inner sides of the left end and the right end of the lower die frame, and the sliding rod (243) extends between the two sleeves (242) along the width direction of the lower die frame;
the number of the locking devices (24) is equal to that of the rows of the hollow parts, and the lower part of each row of the hollow parts is provided with one locking device (24);
a plurality of hooks (244) are uniformly arranged on the sliding rod (243), the number of the hooks (244) is equal to that of the hollow parts on each row of hollow parts, and one hook (244) is exposed in any hollow part; each hook (244) can be hooked into the hook lug (16) in the hollow part to realize the locking of the upper die (1) and the lower die (2).
10. An interlocking plate prefabrication die table according to claim 1, characterized in that a plurality of reinforcing ribs are arranged on the lower die frame, and the reinforcing ribs are used for enhancing the strength of the lower die (2) so as to prevent the lower die (2) from deforming in the vibration process and further influencing the quality of the interlocking blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922274907.8U CN211517873U (en) | 2019-12-18 | 2019-12-18 | Interlocking sheet prefabricated mould platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922274907.8U CN211517873U (en) | 2019-12-18 | 2019-12-18 | Interlocking sheet prefabricated mould platform |
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| Publication Number | Publication Date |
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| CN211517873U true CN211517873U (en) | 2020-09-18 |
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| CN201922274907.8U Active CN211517873U (en) | 2019-12-18 | 2019-12-18 | Interlocking sheet prefabricated mould platform |
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