CN214272073U - Concrete precast slab slope protection cast-in-place sealing top plate template - Google Patents
Concrete precast slab slope protection cast-in-place sealing top plate template Download PDFInfo
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- CN214272073U CN214272073U CN202022461606.9U CN202022461606U CN214272073U CN 214272073 U CN214272073 U CN 214272073U CN 202022461606 U CN202022461606 U CN 202022461606U CN 214272073 U CN214272073 U CN 214272073U
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Abstract
The utility model relates to a cast-in-place coping template structure of concrete precast slab bank protection, include, the membrane material barrier layer sets to "nearly" font at the top of concrete precast slab bank protection, extend to the backfill soil lower part, the layered compaction of backfill soil, concrete precast slab bank protection top embedding closed roof, bank protection closed roof sets up transition layer upper portion on the membrane, the both sides of closed roof are equipped with ground side steel form respectively, bank protection side steel form upper portion welding sliding tray, the portable frame of scraping is removed on the upper portion of ground side steel form and bank protection side steel form through the sliding tray, be used for floating the cast-in-place concrete and flatten. The ground side steel formwork and the slope protection side steel formwork adopt the assembled shaped steel formwork, can be prefabricated and assembled outside the field, and during on-site construction, prefabricated parts are transported to a construction site to be directly erected, so that the turnover rate of the formwork components is increased to a certain extent, and the construction cost is reduced.
Description
Technical Field
The utility model relates to a civil engineering field especially relates to concrete precast slab bank protection cast in situ roof template.
Background
The top sealing plate is a protective umbrella on the concrete precast slab protection slope and is a 'lip' of the side slope plate. The damage of the slope protection caused by the damage of the top sealing plate is very common due to lip die and tooth cold. The common capping plate has a floating top type and a flat top type, the floating top type capping plate is not attractive, extrusion displacement is easy to occur, and the problem of small protection effect on the slope plate is rarely adopted at present. The flat top type top sealing plate is attractive and not easy to extrude and displace. The single-face vertical formwork cast-in-place mode is adopted during construction of the flat-top type roof sealing plate, the flat-top type roof sealing plate and the side slope plate are tightly and firmly combined in the mode, but the problems of serious formwork deformation and low formwork supporting speed exist, and the construction quality of the roof sealing plate is seriously influenced.
In summary, no effective solution is provided for the problems existing in the pouring construction of the flat top type roof sealing plate at present.
SUMMERY OF THE UTILITY MODEL
Based on this, this application provides concrete precast slab bank protection cast in situ roof sealing template for there is the formwork that warp seriously among the solution correlation technique, and the slow problem of formwork speed, the formwork structure of this roof sealing not only construction speed is fast, and the system precision is high and construction quality and effect are better.
The application provides cast-in-place coping template structure of concrete precast slab bank protection, including the backfill, the original state soil, gravel material bed course, the transition layer under the membrane, the membrane material barrier layer, epimembranal transition layer, concrete precast slab bank protection, the membrane material barrier layer sets to "nearly" font at the top of concrete precast slab bank protection, extend to the backfill lower part, the compaction of backfill layering, concrete precast slab bank protection top embedding closed roof, the bank protection closed roof sets up transition layer upper portion on the membrane, the both sides of closed roof board are equipped with ground side steel form respectively, bank protection side steel form upper portion welding sliding tray, the portable frame of strickling off passes through the upper portion removal of sliding tray at ground side steel form and bank protection side steel form, be used for carrying out the trowelling and flattening to cast-in-place concrete.
In a possible implementation mode, the concrete precast slab slope protection is provided with an embedded threaded rod, an angle steel base is fixed with the embedded threaded rod through a nut, a vertical rod and an inclined support are connected to the angle steel base, and a slope protection side steel template is connected with the inclined support through an adjustable support rod.
In a possible implementation mode, the slope protection side steel formwork is provided with an ear plate, two ends of the adjustable supporting rod are respectively and movably fixed on the inclined support and the ear plate, and the slope protection side steel formwork is adjusted in installation angle through stretching of the adjustable supporting rod.
In a possible implementation mode, the ground side steel formwork is connected with the fixed cross beam through the fixed bolt, the fixed cross beam is connected with the vertical rod through the fixed bolt, the vertical rod, the horizontal support and the inclined support are connected through the fixed bolt, the horizontal support is provided with a reserved hole, the horizontal support is fixed on backfill soil through a steel chisel, and the end part of the adjacent horizontal support is connected with the channel steel base through the fixed bolt.
In one possible implementation mode, ear plates are arranged at corresponding positions of the ground side steel templates, the ear plates are provided with reserved holes, the corresponding ear plates are connected with the plugging steel plates on the fixed cross beam through fixing bolts between the adjacent ground side steel templates, and the reserved holes are reserved in the plugging steel plates; the end template is connected with the ear plates of the ground side steel template and the slope protection side steel template through fixing bolts.
In a possible implementation mode, the end formwork is provided with a V-shaped groove, the V-shaped groove is clamped on a slope protection of the prefabricated slab, and a sealing top plate is formed by pouring and vibrating concrete in an area defined by the slope protection side steel formwork, the end formwork and the ground side steel formwork.
In one possible implementation mode, the movable strickle frame comprises strickle frame beams, connecting beams, movable shaft bolts, cross rods, adjustable pull rods, connecting shaft lug plates, adjustable threaded connecting shafts, pulleys, strickle steel plates, push-pull rod handles, push-pull rods and elbows; wherein, the beam of the strickle frame and the connecting beam form a framework of the movable strickle frame; connecting shaft lug plates are welded at two ends of a cross beam of the leveling frame, adjustable threaded connecting shafts are arranged on the connecting shaft lug plates, pulleys are arranged on the adjustable threaded connecting shafts, the pulleys are matched in sliding grooves in the upper portions of the ground side steel template and the slope protection side steel template, and the positions of the pulleys are adjusted through the adjustable threaded connecting shafts; the two ends of the push-pull rod are respectively welded with a push-pull rod handle and an elbow, a movable shaft preformed hole is arranged on the elbow, and the movable shaft preformed hole is hinged with an adjustable threaded connecting shaft on the cross rod; the strickle steel plate is fixed with the connecting beam through the adjustable pull rod, and the elevation of the strickle steel plate is controlled by adjusting the adjustable pull rod.
Compared with the prior art, the utility model has the following characteristics and beneficial effect:
1. the utility model discloses a concrete precast slab bank protection cast in situ roof template system, wherein, ground side steel form, bank protection side steel form, end template adopt assembled regularization steel form, can prefabrication processing and assemble outside the field, when site operation, transport prefabricated component to the job site and directly set up, have improved formwork member's turnover speed to a certain extent, have reduced construction cost.
2. The utility model discloses set up the portable frame of scraping and floating, after pouring the completion, through control movable type scrape the frame and carry out the floating to cast in situ concrete and flatten, the portable frame of scraping moves on bank protection side steel form and ground side steel form through the pulley, and simple structure need not set up interim support during and the construction, has improved the construction speed, has practiced thrift the manual work.
3. The utility model discloses side steel form, end template and ground side steel form to the bank protection prop up and keep off and consolidate, can further improve the construction quality who forms the roof board. Through the utility model discloses, can effectively solve the serious problem of formwork deformation that exists among the correlation technique, and the reinforced structure economy is effective, makes the construction quality of roof sealing board obtain effective assurance.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in related arts, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic sectional view of a concrete precast slab revetment cast-in-place capping slab formwork structure;
FIG. 2 is a schematic view of a concrete precast slab slope protection cast-in-place capping slab template structure and a movable strickle frame;
FIG. 3 is a schematic view of a movable screed frame and a steel formwork connecting and fixing big sample;
FIG. 4 is a pictorial view of a mobile screed frame;
FIG. 5 is a diagrammatic representation of an end form;
fig. 6 is a schematic view of a striking plate push-pull rod.
In the figure: 1-backfill soil, 2-undisturbed soil, 3-gravel cushion layer, 4-lower transition layer, 5-membrane material impermeable layer, 6-upper transition layer, 7-concrete precast slab slope protection, 8-angle steel base, 9-embedded threaded rod, 10-vertical rod, 11-adjustable stay bar, 12-nut, 13-fixing bolt, 14-inclined support, 15-strickle frame beam, 16-connecting beam, 17-movable shaft bolt, 18-transverse rod, 19-adjustable pull rod, 20-pulley, 21-connecting shaft lug plate, 22-adjustable threaded connecting shaft, 23-sliding groove, 24-horizontal support, 25-ground side steel template, 26-slope protection side steel template, 27-lug plate, 28-channel steel base, 29-blocking steel plates, 30-preformed holes, 31-leveling steel plates, 32-fixed cross beams, 33-end templates, 34-V-shaped grooves, 35-connecting holes, 36-push-pull rod handles, 37-elbows, 38-preformed holes of movable shafts, 39-push-pull rods, 40-top sealing plates and 41-movable leveling frames.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other examples, which can be obtained by a person skilled in the art without making any inventive step based on the examples in this application, are within the scope of protection of this application.
It is obvious that the drawings in the following description are only examples or embodiments of the application, from which the application can also be applied to other similar scenarios without inventive effort for a person skilled in the art. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Unless otherwise defined, technical or scientific terms used in the claims and the specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. The use of the terms "a" and "an" and "the" and similar referents in the context of describing and claiming the application are not to be construed as limiting in any way, but rather as indicating the singular or plural. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalent, and does not exclude other elements or items. "connected" or "coupled" and similar terms are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in the specification and claims of this application, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
The utility model discloses construction technical requirements such as detailed structure handles no longer describe repeatedly in the embodiment, focus explains the utility model discloses an embodiment, it is right through the embodiment to combine the drawing below the utility model discloses do further detailed description, this description is not restricted to following embodiment.
Fig. 1 is a schematic sectional view of a concrete precast slab revetment cast-in-place capping slab formwork structure. The embodiment of the application provides a concrete precast slab slope protection cast-in-place top sealing plate template, which comprises backfill 1, undisturbed soil 2, a gravel material cushion layer 3, a lower transition layer 4, a membrane material impermeable layer 5, an upper transition layer 6 and a concrete precast slab slope 7, wherein the membrane material impermeable layer 5 is arranged in a shape like a Chinese character 'ji' at the top of the concrete precast slab slope protection 7 and extends to the lower part of the backfill 1, the backfill 1 is compacted in a layered manner, a top sealing plate 40 is embedded at the top of the concrete precast slab slope protection 7, the top sealing plate 40 is arranged at the upper part of the upper transition layer 6, a ground side steel template 25 and a slope protection side steel template 26 are respectively arranged at two sides of the top sealing plate 40, a sliding groove 23 is welded at the upper part of the slope protection side steel template 26, after concrete pouring and vibrating of the top sealing plate 40 are completed, a movable scraping frame 41 is adopted to move on the upper parts of the ground side steel template 25 and the slope protection side steel template 26 through the sliding groove 23, used for finishing and flattening the cast-in-place concrete.
In this embodiment, the ground side steel formwork 25, the slope protection side steel formwork 26 and the end formwork 33 are fabricated and shaped steel formworks, and can be prefabricated and assembled outside the site.
In this embodiment, the capping plate 40 is a cast-in-place concrete plate.
In some embodiments, the concrete precast slab revetment 7 is provided with an embedded threaded rod 9, an angle steel base 8 is fixed with the embedded threaded rod 9 through a nut 12, a vertical rod 10 and an inclined support 14 are connected to the angle steel base 8, and a revetment side steel template 26 is connected with the inclined support 14 through an adjustable support rod 11.
Specifically, the slope protection side steel formwork 26 is provided with an ear plate 27, two ends of the adjustable stay bar 11 are respectively and movably fixed on the inclined support 14 and the ear plate 27, and the slope protection side steel formwork 26 is adjusted in installation angle through the expansion and contraction of the adjustable stay bar 11. In the present embodiment, the perpendicularity of the slope protection side steel formwork 26 is adjusted to be perpendicular to the ground plane by the adjustable stay bar 11.
In some embodiments, the ground side steel formwork 25 is connected with the fixed cross beam 32 through the fixed bolt 13, the fixed cross beam 25 is formed by processing channel steel, the fixed cross beam 32 is connected with the vertical rod 10 through the fixed bolt, the vertical rod 10, the horizontal support 24 and the inclined support 14 are connected through the fixed bolt 13, a reserved hole 30 is formed in the horizontal support 24, the horizontal support 24 is fixed on the backfill soil 1 through a steel drill, and the end part of the adjacent horizontal support 24 is connected with the channel steel base 28 through the fixed bolt 13.
In this embodiment, the vertical bar 10, the diagonal brace 14 and the angle iron base 8 are connected by the fixing bolt 13, and the ground-side steel formwork 25 is connected to the vertical bar 10, the horizontal brace 24 and the diagonal brace 14 by the fixing cross beam 32, so that the effect of reinforcing the ground-side steel formwork 25 is achieved, and the construction quality of the pouring top-sealing plate 40 can be improved.
In some embodiments, the ear plates 27 are arranged at corresponding positions of the ground side steel templates 25, the ear plates 27 are provided with reserved holes 30, the corresponding ear plates 27 are connected with the plugging steel plates 29 on the fixed cross beams 32 through the fixing bolts 13 between the adjacent ground side steel templates 25, and the reserved holes 30 are reserved in the plugging steel plates 29; the end formwork 33 is connected to the floor-side steel formwork 25 and the lug plate 27 of the slope-protection-side steel formwork 26 by fixing bolts 13.
In some embodiments, the end formwork 33 is provided with a V-shaped groove 34, the V-shaped groove 34 is clamped on the precast slab revetment 7, and the area enclosed by the revetment side steel formwork 26, the end formwork 33 and the ground side steel formwork 25 is poured and vibrated by concrete to form the top sealing plate 40.
In some of the embodiments, the movable screed 41 includes screed cross beam 15, connecting beam 16, movable shaft bolt 17, cross bar 18, adjustable pull rod 19, connecting shaft ear plate 21, adjustable threaded connecting shaft 22, pulley 20, screed steel plate 31, push-pull rod handle 36, push-pull rod 39, elbow 37; wherein, the strickle frame beam 15 and the connecting beam 16 form a framework of the movable strickle frame 41; connecting shaft lug plates 21 are welded at two ends of a leveling frame beam 15, adjustable threaded connecting shafts 22 are installed on the connecting shaft lug plates 21, pulleys 20 are installed on the adjustable threaded connecting shafts 22, the pulleys 20 are matched in sliding grooves in the upper portions of a ground side steel template 25 and a slope protection side steel template 26, and the positions of the pulleys 20 are adjusted through the adjustable threaded connecting shafts 22; the two ends of the push-pull rod 39 are respectively welded with a push-pull rod handle 36 and an elbow 37, the elbow 37 is provided with a movable shaft preformed hole 38, and the movable shaft preformed hole 38 is hinged with the adjustable threaded connecting shaft 22 on the cross rod 18; the strickle steel plate 31 is fixed with the connecting beam 16 through an adjustable pull rod 19, and the elevation of the strickle steel plate 31 is controlled by adjusting the adjustable pull rod 19. And controlling a push-pull rod handle 36 to enable the movable scraping frame 41 to integrally move on the upper parts of the ground side steel formwork 25 and the slope protection side steel formwork 26, so that the cast-in-place concrete is smoothed and flattened.
In conclusion, the scheme provides a concrete precast slab slope protection cast-in-place coping plate template structure, the formwork system of the scheme adopts an assembly type finalized steel template, specifically, concrete is poured and vibrated in an area enclosed by the slope protection side steel template 26, the end template 33 and the ground side steel template 25 to form the coping plate 40, prefabricating and processing can be performed, the prefabricated components are transported to a construction site to be directly erected during site construction, the turnover rate of the formwork components is increased to a certain extent, and the construction cost is reduced. After pouring, cast-in-place concrete is smoothed and flattened by controlling the movable scraping frame 41, the movable scraping frame 41 moves on the slope protection side steel formwork 26 and the ground side steel formwork 25 through the pulleys, the structure is simple, temporary supports do not need to be erected during construction, and the construction speed is improved. In addition, the construction quality for forming the capping plate 40 can be further improved by retaining and reinforcing the slope protection side steel formwork 26, the end formwork 33, and the ground side steel formwork 25. Through the utility model discloses, the formwork that exists among the effective solution correlation technique warp seriously, and the slow problem of formwork speed.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. The cast-in-place coping template structure of the concrete precast slab protection slope is characterized by comprising backfill (1), undisturbed soil (2), a gravel material cushion layer (3), a lower transition layer (4), a membrane material impermeable layer (5), an upper transition layer (6) and a concrete precast slab protection slope (7), wherein the membrane material impermeable layer (5) is arranged in a shape like a Chinese character ji at the top of the concrete precast slab protection slope (7) and extends to the lower part of the backfill (1), the backfill (1) is compacted in a layering way, a top sealing plate (40) is embedded at the top of the concrete precast slab protection slope (7), the slope sealing plate (40) is arranged at the upper part of the upper transition layer (6) on the membrane, two sides of the top sealing plate (40) are respectively provided with a ground side steel template (25) and a slope protection side steel template (26), a sliding groove (23) is welded at the upper part of the slope protection side steel template (26), a movable ground scraping frame (41) moves on the upper parts of the ground side steel template (25) and the slope protection side steel template (26) through the sliding groove (23), used for finishing and flattening the cast-in-place concrete.
2. The cast-in-place capping plate formwork structure for the concrete precast slab revetment according to claim 1, wherein the concrete precast slab revetment (7) is provided with an embedded threaded rod (9), an angle steel base (8) is fixed with the embedded threaded rod (9) through a nut (12), the angle steel base (8) is connected with a vertical rod (10) and an inclined support (14), and a revetment side steel formwork (26) is connected with the inclined support (14) through an adjustable support rod (11).
3. The cast-in-place capping plate formwork structure for the slope protection of the concrete precast slab according to claim 2, wherein the slope protection side steel formwork (26) is provided with an ear plate (27), two ends of the adjustable stay bar (11) are respectively and movably fixed on the inclined support (14) and the ear plate (27), and the installation angle of the slope protection side steel formwork (26) is adjusted by the extension and contraction of the adjustable stay bar (11).
4. The cast-in-place capping plate formwork structure for the concrete precast slab revetment according to claim 1, wherein the ground side steel formwork (25) is connected with the fixed cross beam (32) through the fixed bolt (13), the fixed cross beam (32) is connected with the vertical rod (10) through the fixed bolt, the vertical rod (10), the horizontal support (24) and the inclined support (14) are connected through the fixed bolt (13), the horizontal support (24) is provided with a reserved hole (30), the horizontal support (24) is fixed on the backfill soil (1) through a steel chisel, and the end part of the adjacent horizontal support (24) is connected with the channel steel base (28) through the fixed bolt (13).
5. The concrete precast slab slope protection cast-in-place capping plate formwork structure as claimed in claim 4, wherein the corresponding positions of the ground side steel formworks (25) are provided with the ear plates (27), the ear plates (27) are provided with the reserved holes (30), the corresponding ear plates (27) and the blocking steel plates (29) on the fixed cross beams (32) are connected between the adjacent ground side steel formworks (25) through the fixed bolts (13), and the reserved holes (30) are reserved on the blocking steel plates (29); the end template (33) is connected with the ear plates (27) of the ground side steel template (25) and the slope protection side steel template (26) through fixing bolts (13).
6. The cast-in-place coping plate template structure of the concrete precast slab slope protection according to claim 3, wherein a V-shaped groove (34) is arranged on the end template (33), the V-shaped groove (34) is clamped on the precast slab slope protection (7), and the area enclosed by the slope protection side steel template (26), the end template (33) and the ground side steel template (25) is cast and vibrated by concrete to form the coping plate (40).
7. The cast-in-place capping plate formwork structure of the concrete precast slab revetment according to claim 1, wherein the movable strickle frame (41) comprises strickle frame beams (15), connecting beams (16), movable shaft bolts (17), cross rods (18), adjustable pull rods (19), connecting shaft ear plates (21), adjustable threaded connecting shafts (22), pulleys (20), strickle steel plates (31), push-pull rod handles (36), push-pull rods (39) and elbows (37); wherein, the strickle frame beam (15) and the connecting beam (16) form a framework of the movable strickle frame (41); connecting shaft lug plates (21) are welded at two ends of a strickle frame beam (15), an adjustable threaded connecting shaft (22) is arranged on each connecting shaft lug plate (21), a pulley (20) is arranged on each adjustable threaded connecting shaft (22), each pulley (20) is matched in a sliding groove at the upper part of a ground side steel template (25) and a slope protection side steel template (26), and the position of each pulley (20) is adjusted through the adjustable threaded connecting shaft (22); a push-pull rod handle (36) and an elbow (37) are respectively welded at two ends of a push-pull rod (39), a movable shaft preformed hole (38) is formed in the elbow (37), and the movable shaft preformed hole (38) is hinged with an adjustable threaded connecting shaft (22) on the cross rod (18); the strickle steel plate (31) is fixed with the connecting beam (16) through an adjustable pull rod (19), and the elevation of the strickle steel plate (31) is controlled by adjusting the adjustable pull rod (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022461606.9U CN214272073U (en) | 2020-10-30 | 2020-10-30 | Concrete precast slab slope protection cast-in-place sealing top plate template |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022461606.9U CN214272073U (en) | 2020-10-30 | 2020-10-30 | Concrete precast slab slope protection cast-in-place sealing top plate template |
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| Publication Number | Publication Date |
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| CN214272073U true CN214272073U (en) | 2021-09-24 |
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| CN202022461606.9U Active CN214272073U (en) | 2020-10-30 | 2020-10-30 | Concrete precast slab slope protection cast-in-place sealing top plate template |
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| CN (1) | CN214272073U (en) |
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Effective date of registration: 20220519 Address after: 518000 floor 5, block B, Haina Baichuan headquarters building, No. 6, Baoxing Road, Haibin community, Xin'an street, Bao'an District, Shenzhen, Guangdong Province Patentee after: SHENZHEN JIANAN (Group) Co.,Ltd. Address before: Room 1903, unit 3, building 3, Wanda business center, Gongshu District, Hangzhou City, Zhejiang Province 310003 Patentee before: Zhejiang Shirun Jianchuang Technology Development Co.,Ltd. |
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