CN212105095U - Hollow template for building construction - Google Patents
Hollow template for building construction Download PDFInfo
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- CN212105095U CN212105095U CN202020607263.XU CN202020607263U CN212105095U CN 212105095 U CN212105095 U CN 212105095U CN 202020607263 U CN202020607263 U CN 202020607263U CN 212105095 U CN212105095 U CN 212105095U
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Abstract
The utility model provides a hollow template for building construction, which relates to the technical field of building construction templates and comprises a smooth surface layer, an inner layer, a middle layer, an outer layer, a fireproof flame-retardant layer, a white heat dissipation layer and a reinforcing edge strip positioned at the edge of the middle layer, wherein the smooth surface layer, the inner layer, the middle layer, the outer layer, the fireproof flame-retardant layer and the white heat dissipation layer are sequentially arranged from inside to outside; the intermediate level is equipped with a plurality of rows of circular ports, and two adjacent rows of circular ports crisscross the setting. The utility model provides a hollow template for construction utilizes the inlayer, the skin sets up the form in the intermediate level outside respectively, realize the effective protection to the intermediate level, the circular port that link up that the intermediate level set up can effectual reduction template weight on the one hand, can also realize the effective support to the intermediate level through the circular shape hole that the periphery shape is unanimous simultaneously, make the intermediate level have better structural stability, the setting of strengthening the strake can increase the bulk strength of template side, the inboard smooth surface layer of inlayer is convenient for realize the follow-up form removal of template and concrete.
Description
Technical Field
The utility model belongs to the technical field of the construction template, more specifically say, relate to a hollow template for construction.
Background
In the construction industry, concrete pouring is often required. The building template is a necessary construction tool in a pouring concrete building structure and is mainly used for performing concrete. When a building is built, a template is installed according to construction requirements, then concrete is directly poured into a cavity formed by the template, after the concrete is hardened, the template is dismantled, and the pouring forming of the concrete is realized. The conventional building templates mainly include wood templates and steel templates. In the formwork supporting process, the wooden formwork needs to be connected and fixed by using the iron fixture, the wooden formwork is easily corroded by water, acid and alkali during use and is easily damaged during formwork removal, so that the repeated utilization rate of the wooden formwork is low due to the reasons, the construction cost is increased, a large amount of wood is consumed, and the environment is not facilitated. Although the steel form can be repeatedly used, the weight is larger, the storage, the transportation and the installation are not facilitated, and the construction cost of enterprises is increased.
In order to solve the problems, a hollow plastic template, namely a plastic reinforcing plate, is mostly adopted at present, and a polypropylene raw material is adopted for extrusion molding, so that the template is a novel template which is light in weight, pollution-free, waterproof and anti-aging. The existing hollow plastic formwork mostly adopts the problem of insufficient structural strength, and the forming quality of concrete can be seriously influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cavity template for construction to solve the technical problem that the cavity template intensity that exists is not enough among the prior art, the performance is poor influences the concrete shaping quality.
In order to achieve the above object, the utility model adopts the following technical scheme: the hollow template for building construction comprises a middle layer, an outer layer, an inner layer, a reinforcing edge strip, a smooth layer, a fireproof flame-retardant layer and a white heat dissipation layer; the middle layer is provided with a plurality of rows of circular holes which penetrate along the length direction of the middle layer, and two adjacent rows of circular holes are arranged in a staggered manner in the plate thickness direction of the middle layer; the outer layer is arranged on the upper plate surface of the middle layer and is integrally formed with the middle layer; the inner layer is arranged on the lower plate surface of the middle layer and is integrally formed with the middle layer; the two reinforcing edge strips are respectively arranged on two sides of the middle layer along the length direction of the middle layer, and the reinforcing edge strips are positioned between the outer layer and the inner layer; the smooth layer is arranged on the outer side of the inner layer; the fireproof flame-retardant layer is arranged on the outer side surface of the outer layer; the white heat dissipation layer is arranged on the outer side face of the fireproof flame-retardant layer.
As another embodiment of this application, the circular port distributes in the thick board direction in intermediate level has the triplex row, is first row of circular port, second row of circular port and third row of circular port respectively, and the aperture of first row of circular port is the same with the aperture of third row of circular port, and the aperture of first row of circular port is less than the aperture of second row of circular port respectively with the aperture of third row of circular port.
As another embodiment of the application, a longitudinal partition plate perpendicular to the plate surface of the middle layer is arranged in the second row of circular holes, the width of the longitudinal partition plate is 1/5-1/3 of the diameter of the second row of circular holes, and light filling materials are further arranged in the first row of circular holes and the third row of circular holes.
As another embodiment of the application, a diaphragm plate perpendicular to the longitudinal diaphragm plates is further arranged in the second row of circular holes, and the thickness of the diaphragm plate is smaller than that of the longitudinal diaphragm plates.
As another embodiment of the application, a reinforcing rib extending along the axial direction of the circular hole is further arranged on the white heat dissipation layer, and the reinforcing rib comprises two rib plates and a connecting plate; the two rib plates are respectively vertical to the plate surface of the white heat dissipation layer; the connecting plate is arranged at the outer ends of the two rib plates, and the plate surface is parallel to the plate surface of the white heat dissipation layer; the length of the connecting plate is larger than the distance between the two rib plates.
As another embodiment of the present application, at least three reinforcing ribs are provided in the width direction of the white heat dissipation layer, and the at least three reinforcing ribs are uniformly arranged on the white heat dissipation layer.
As another embodiment of the application, the white heat dissipation layer is further provided with a plurality of transverse reinforcing strips perpendicular to the trend of the reinforcing ribs, and the transverse reinforcing strips and the reinforcing edge strips are integrally formed.
As another embodiment of this application, the both ends of horizontal stiffener are equipped with the outside alignment hole of opening respectively, and two adjacent horizontal stiffeners are continuous through being located the alignment pole of adjusting downthehole well, and are equipped with the first hole that the axis setting of main shaft perpendicular to horizontal stiffener on the outer wall of horizontal stiffener, are equipped with the second hole that is used for corresponding with first hole on adjusting the pole well, and horizontal stiffener passes through the round pin hub fixation with adjusting the pole well.
As another embodiment of the application, polyester fibers are respectively arranged in the reinforcing edge strips and the longitudinal partition plates.
In another embodiment of the present application, the inner layer and the outer layer are made of glass fiber reinforced polypropylene composite material, and the middle layer is made of polypropylene material.
The utility model provides a hollow template for construction's beneficial effect lies in: compared with the prior art, the utility model provides a hollow template for construction utilizes inlayer, skin to set up the form in the intermediate level outside respectively, realizes the effective protection to the intermediate level, and the circular port that link up that the intermediate level set up can effectual reduction template weight on the one hand, can also realize the effective support to the intermediate level through the circular shape hole that the periphery shape is unanimous simultaneously, compares traditional rectangular hole or triangle-shaped hole and can make the intermediate level have better structural stability, is convenient for guarantee the overall stability of template. The setting of strengthening the strake can increase the bulk strength of template side, and the fire behavior of template can be realized in setting up on the fire-retardant layer of fire prevention, and white heat dissipation layer sets up on the skin, can play effective radiating effect, avoids the adverse effect of high temperature weather to the template, and the inboard smooth surface layer of inlayer is convenient for realize the follow-up form removal of template and concrete, is convenient for improve the shaping quality of concrete member, reduces the form removal degree of difficulty.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic top view of a hollow form for building construction according to an embodiment of the present invention;
fig. 2 is a schematic top view of a partial structure of a hollow form for building construction according to an embodiment of the present invention;
fig. 3 is a schematic top view of a partial structure of a hollow form for building construction according to a third embodiment of the present invention;
fig. 4 is a schematic top view of a partial structure of a hollow form for building construction according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural view of a hollow form for building construction according to a fifth embodiment of the present invention;
FIG. 6 is a left side view of the structure of FIG. 5;
FIG. 7 is an enlarged partial sectional view of section I in FIG. 6;
fig. 8 is a schematic top view of the structure of fig. 5.
Wherein, in the figures, the respective reference numerals:
100. an inner layer; 110. a smooth layer; 200. an intermediate layer; 210. a circular hole; 211. a first row of circular apertures; 212. a second row of circular apertures; 213. a third row of circular holes; 220. a lightweight filler substance; 230. a longitudinal partition plate; 240. a diaphragm plate; 300. an outer layer; 310. a fire resistant and flame retardant layer; 320. a white heat dissipation layer; 400. reinforcing edge strips; 500. reinforcing ribs; 510. a rib plate; 520. a connecting plate; 600. a transverse reinforcing strip; 610. aligning the holes; 620. an aligning rod; 630. and (7) a pin shaft.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or be indirectly on the other element. It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 8, a hollow form for building construction according to the present invention will now be described. The hollow template for building construction comprises a middle layer 200, an outer layer 300, an inner layer 100, a reinforcing edge strip 400, a smooth layer 110, a fireproof flame-retardant layer 310 and a white heat dissipation layer 320; the middle layer 200 is provided with a plurality of rows of circular holes 210 penetrating along the length direction of the middle layer 200, two adjacent rows of circular holes 210 are arranged in a staggered mode in the plate thickness direction of the middle layer 200, and light filling materials 220 are further arranged in the circular holes 210; the outer layer 300 is arranged on the upper plate surface of the middle layer 200 and is integrally formed with the middle layer 200; the inner layer 100 is arranged on the lower plate surface of the middle layer 200 and is integrally formed with the middle layer 200; the two reinforcing edge strips 400 are respectively arranged on two sides of the middle layer 200 along the length direction of the middle layer 200, and the reinforcing edge strips 400 are positioned between the outer layer 300 and the inner layer 100; the smooth layer 110 is disposed outside the inner layer 100; the fireproof flame-retardant layer 310 is arranged on the outer side surface of the outer layer 300; the white heat dissipation layer 320 is disposed on an outer side surface of the fireproof flame retardant layer 310.
The utility model provides a pair of cavity template for construction, compared with the prior art, the utility model provides a cavity template for construction utilizes inlayer 100, outer 300 sets up the form in the intermediate level 200 outside respectively, realizes the effective protection to intermediate level 200, the circular port 210 that link up that intermediate level 200 set up can effectual reduction template's weight on the one hand, can also realize the effective support to intermediate level 200 through the unanimous circular shape hole of periphery shape simultaneously, compare traditional rectangular hole or triangle hole and can make intermediate level 200 have better structural stability, be convenient for guarantee the overall stability of template. Strengthen strake 400 set up the bulk strength that can increase the template side, the fire behavior of template can be realized in the setting of fire prevention fire-retardant layer 310, white heat dissipation layer 320 sets up on outer layer 300, can play effective radiating effect, avoids the adverse effect of high temperature weather to the template, and the inboard finish coat 110 of inlayer 100 is convenient for the follow-up form removal of template and concrete, the effectual shaping quality that improves the concrete member of above-mentioned structure.
As an embodiment of the present invention, please refer to fig. 2 to 4, three rows of circular holes 210 are distributed in the plate thickness direction of the middle layer 200, which are the first row of circular holes 211, the second row of circular holes 212 and the third row of circular holes 213, the first row of circular holes 211 has the same diameter as the third row of circular holes 213, and the diameter of the first row of circular holes 211 and the diameter of the third row of circular holes 213 are smaller than the diameter of the second row of circular holes 212.
The axial of circular port 210 sets up along the length direction of intermediate level 200, every row of circular port 210 arranges along the width direction of intermediate level 200, circular port 210 is provided with the triplex row in the thickness direction of intermediate level 200, triplex row of circular port 210 sets up in order along the thickness direction of intermediate level 200, in the thickness direction of intermediate level 200, first row of circular port 211 corresponds with third row of circular port 213, second row of circular port 212 in the middle staggers with first row of circular port 211 and third row of circular port 213, avoid the trompil position to align the problem that causes the local strength to reduce on the thick board direction.
Further, because the total number of first row of circular ports 211 and third row of circular ports 213 is greater than the quantity of second row of circular ports 212, suitably increase the aperture of second row of circular ports 212, can also effectively reduce the weight of panel and the material quantity of template under the prerequisite of guaranteeing template bulk strength.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3 to 4, a longitudinal partition plate 230 is disposed in the second row of circular holes 212 and perpendicular to the plate surface of the middle layer 200, the longitudinal partition plate 230 is 1/5-1/3 of the aperture of the second row of circular holes 212, and a light filling material 220 is further disposed in the first row of circular holes 211 and the third row of circular holes 213. Because the aperture of second circular port 210 is greater than first row of circular port 211 and third row of circular port 213, set up the vertical separators 230 that set up along the thick board direction of intermediate level 200 in second row of circular port 212, not only can improve the bulk strength of template, still be convenient for avoid the problem that the long limit edge intensity of template weakens in the cutting of follow-up mould. The thickness of the longitudinal partition 230 in the width direction of the middle layer 200 is set to be large, and the effective supporting effect of the semicircular part after the circular hole 210 is cut is ensured.
Furthermore, the light filling materials 220 arranged in the first row of circular holes 211 and the third row of circular holes 213 play a role in reducing weight, and simultaneously can also avoid the problem that concrete enters the formwork and is difficult to clean
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 4, a transverse partition 240 perpendicular to the longitudinal partition 230 is further disposed in the second row of circular holes 212, and the thickness of the transverse partition 240 is smaller than that of the longitudinal partition 230. The provision of the diaphragm 240 further enhances the overall strength of the formwork, and has good structural stability when the formwork is subjected to an extrusion force during concrete pouring. The hollow template adopts injection moulding, and can set up the accurate shaping that the corresponding mould core realized circular port 210.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 5 to 8, the white heat dissipation layer 320 is further provided with a reinforcing rib 500 extending along the axial direction of the circular hole 210, and the reinforcing rib 500 includes two ribs 510 and a connecting plate 520; the two ribs 510 are respectively arranged perpendicular to the plate surface of the white heat dissipation layer 320; the connecting plate 520 is disposed at the outer ends of the two ribs 510, and the plate surface is parallel to the plate surface of the white heat dissipation layer 320; the length of the web 520 is greater than the spacing between the two ribs 510. In use, the provision of the reinforcing ribs 500 can ensure structural stability in the length direction of the form. In the use, the long limit of template sets up along the up-down direction, and the main shaft of circular port 210 sets up along the up-down direction that also is exactly, when carrying out the pouring of high-size concrete member, in order to avoid the concrete placement volume to cause the outside arch that the too big atress of template below caused, utilizes stiffening rib 500 reinforcing template's intensity. The two rib plates 510 and the connecting plates 520 arranged on the outer sides of the two rib plates 510 form a rectangular hollow component with the template, so that the structural stability is good, and the effective support to the length direction of the template is realized.
As an embodiment of the present invention, please refer to fig. 5 to 8, at least three reinforcing ribs 500 are disposed in the width direction of the white heat dissipation layer 320, and the at least three reinforcing ribs 500 are uniformly arranged on the white heat dissipation layer 320. Above-mentioned form that sets up can guarantee the support intensity on the whole plane of template, avoids the not enough bulging or the fracture scheduling problem that causes of center or marginal local support.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 5 to 8, the white heat dissipation layer 320 is further provided with a plurality of transverse reinforcing bars 600 perpendicular to the trend of the reinforcing ribs 500, and the transverse reinforcing bars 600 and the reinforcing ribs 500 are integrally formed. The arrangement of the transverse reinforcing bars 600 can act together with the reinforcing ribs 500 to achieve the effect of arrangement in a shape like a Chinese character 'jing', so that the strength of the template is further improved. The reinforcing rib 500 and the transverse reinforcing bar 600 may be mounted later, or may be connected by bonding or the like.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 5 to 8, the two ends of the horizontal stiffener 600 are respectively provided with the alignment hole 610 with the outward opening, two adjacent horizontal stiffeners 600 are connected through the alignment rod 620 located in the alignment hole 610, and the outer wall of the horizontal stiffener 600 is provided with the first hole of the axis setting of the horizontal stiffener 600 of the spindle perpendicular, the second hole corresponding to the first hole is provided on the alignment rod 620, the horizontal stiffener 600 is fixed through the pin shaft 630 with the alignment rod 620. In order to make two adjacent templates have better flatness when the templates are supported, the end part of the transverse reinforcing bar 600 is provided with the aligning hole 610, and two ends of the aligning rod 620 are respectively inserted into the two adjacent templates, so that the flatness of the two templates can be ensured. When guaranteeing that two template faces flush, still need guarantee the effective contact between two template edges, except that traditional formwork operation, can also utilize round pin axle 630 to fix a certain axial position at alignment hole 610 with adjusting pole 620, when round pin axle 630 inserts, the edge of two templates is in the position of tight combination, can effectively avoid the problem such as the hourglass thick liquid of concrete.
As a specific implementation manner of the embodiment of the present invention, the reinforcing edge strips 400 and the longitudinal partition plates 230 are respectively provided with polyester fibers. The reinforced edge strip 400 is used for increasing the structural strength of the edge position of the template, so that polyester fibers are arranged in the area, belong to high molecular compounds, and have the greatest advantages of good crease resistance and shape retention, high strength and elastic recovery capability and firmness and durability.
The longitudinal partition plate 230 provides effective support for the second row of circular holes 212, so in order to improve the strength of the longitudinal partition plate 230, polyester fibers are also provided inside the longitudinal partition plate to improve the support performance of the longitudinal partition plate 230.
As a specific implementation manner of the embodiment of the present invention, the inner layer 100 and the outer layer 300 are respectively made of glass fiber reinforced polypropylene composite material members, and the middle layer 200 is made of polypropylene material members. In order to improve the durability of the template, the inner layer 100 and the outer layer 300 are made of glass fiber reinforced polypropylene composite materials with higher strength, so that the overall service life of the template is prolonged, the loss of the template is reduced, the middle layer 200 is made of polypropylene materials, the cost can be reduced, and meanwhile, the strength requirement can be met.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Hollow template for construction, its characterized in that includes:
the middle layer is provided with a plurality of rows of circular holes penetrating along the length direction of the middle layer, and two adjacent rows of circular holes are arranged in a staggered mode in the plate thickness direction of the middle layer;
the outer layer is arranged on the upper plate surface of the middle layer and is integrally formed with the middle layer;
the inner layer is arranged on the lower plate surface of the middle layer and is integrally formed with the middle layer;
the two reinforcing edge strips are arranged on two sides of the middle layer along the length direction of the middle layer respectively, and the reinforcing edge strips are positioned between the outer layer and the inner layer;
the smooth layer is arranged on the outer side of the inner layer;
the fireproof flame-retardant layer is arranged on the outer side surface of the outer layer; and
and the white heat dissipation layer is arranged on the outer side surface of the fireproof flame-retardant layer.
2. The hollow form panel for building construction according to claim 1, wherein three rows of circular holes are distributed in the thickness direction of the middle layer, and the three rows of circular holes are a first row of circular holes, a second row of circular holes and a third row of circular holes, the first row of circular holes and the third row of circular holes have the same hole diameter, and the hole diameters of the first row of circular holes and the third row of circular holes are smaller than the hole diameter of the second row of circular holes.
3. The hollow formwork of claim 2, wherein the second row of circular holes are provided with longitudinal partition boards perpendicular to the surface of the middle layer, the width of the longitudinal partition boards is 1/5-1/3 of the diameter of the second row of circular holes, and the first row of circular holes and the third row of circular holes are further provided with light filling materials.
4. The hollow formwork of claim 3 wherein a transverse partition is disposed perpendicular to the longitudinal partition in the second row of circular holes, the transverse partition having a thickness less than the thickness of the longitudinal partition.
5. The hollow form for construction according to any one of claims 1 to 4, wherein the white heat dissipation layer is further provided with a reinforcing rib extending in an axial direction of the circular hole, the reinforcing rib comprising:
the two rib plates are respectively vertical to the plate surface of the white heat dissipation layer; and
the connecting plates are arranged at the outer ends of the two rib plates, and the plate surfaces of the connecting plates are parallel to the plate surfaces of the white heat dissipation layers;
the length of the connecting plate is larger than the distance between the two rib plates.
6. The hollow form for construction according to claim 5, wherein the reinforcing ribs are provided in at least three in a width direction of the white heat-dissipating layer, and at least three of the reinforcing ribs are uniformly arranged on the white heat-dissipating layer.
7. The hollow form for building construction according to claim 6, wherein the white heat dissipation layer is further provided with a plurality of transverse reinforcing bars perpendicular to the direction of the reinforcing ribs, and the transverse reinforcing bars and the reinforcing ribs are integrally formed.
8. The hollow form for building construction according to claim 7, wherein alignment holes with outward openings are respectively formed at both ends of the lateral reinforcing strips, two adjacent lateral reinforcing strips are connected by alignment rods positioned in the alignment holes, a first hole with a main shaft perpendicular to an axis of the lateral reinforcing strips is formed in an outer wall of each lateral reinforcing strip, a second hole corresponding to the first hole is formed in each alignment rod, and the lateral reinforcing strips and the alignment rods are fixed by pin shafts.
9. The hollow form for building construction according to claim 3, wherein polyester fibers are provided in the reinforcing edge strips and the longitudinal partition plates, respectively.
10. The hollow form panel for building construction according to any one of claims 1 to 4, wherein the inner layer and the outer layer are each a glass fiber reinforced polypropylene composite material member, and the intermediate layer is a polypropylene material member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020607263.XU CN212105095U (en) | 2020-04-21 | 2020-04-21 | Hollow template for building construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020607263.XU CN212105095U (en) | 2020-04-21 | 2020-04-21 | Hollow template for building construction |
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| Publication Number | Publication Date |
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| CN212105095U true CN212105095U (en) | 2020-12-08 |
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| CN202020607263.XU Active CN212105095U (en) | 2020-04-21 | 2020-04-21 | Hollow template for building construction |
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| CN (1) | CN212105095U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115306143A (en) * | 2022-09-13 | 2022-11-08 | 安徽镝伟达新材料科技有限公司 | Reinforced hollow plastic composite template for pouring concrete |
-
2020
- 2020-04-21 CN CN202020607263.XU patent/CN212105095U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115306143A (en) * | 2022-09-13 | 2022-11-08 | 安徽镝伟达新材料科技有限公司 | Reinforced hollow plastic composite template for pouring concrete |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Hongyi Shunfa Construction Equipment Leasing Co.,Ltd. Assignor: HEBEI MORTMAIN RUBBER AND PLASTIC TECHNOLOGY Co.,Ltd. Contract record no.: X2022980021410 Denomination of utility model: Hollow formwork for building construction Granted publication date: 20201208 License type: Common License Record date: 20221115 |
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| EE01 | Entry into force of recordation of patent licensing contract |