Pouring device for prefabricating lintel at distribution box and construction method of pouring device

Abstract

The invention discloses a pouring device for prefabricating a lintel at a distribution box and a construction method of the pouring device. The pouring device comprises a formwork box, a first telescopic supporting assembly and a second telescopic supporting assembly. A pouring cavity is formed in the formwork box, the telescopic supporting assembly and the second telescopic supporting assembly are both arranged in the pouring cavity, and the telescopic supporting assembly and the second telescopic supporting assembly can be mutually enclosed to form reserved holes of different sizes. The first telescopic supporting assembly and the second telescopic supporting assembly are mutually enclosed to form the reserved holes with different sizes, and the lintel is poured after the first telescopic supporting assembly and the second telescopic supporting assembly are arranged in the pouring cavity of the template box, so that the lintel with the reserved holes can be prefabricated; and the electromechanical pipeline of the distribution box can directly penetrate through the reserved hole in the lintel, so that grooving and plugging are not needed during subsequent electromechanical construction of the distribution box, the construction procedures can be reduced, and the cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, in particular to a casting device for a lintel at a prefabricated distribution box and a construction method thereof. Background Art

[0002] When a wall has door and window openings larger than 300mm, a horizontal beam, called a lintel, is often installed to support the various loads transmitted from the masonry above the openings and transfer these loads to the walls on either side of the openings. During construction, a reserved opening is created for the distribution box during wall construction. To ensure the stability and safety of the opening, a lintel is installed above this reserved opening. After the lintel and block wall are constructed, the distribution box needs to be slotted to allow the electrical conduit for the distribution box to pass through the lintel and connect to the conduit inside the wall. However, lintels at distribution box locations are typically narrow and low in height. Slotting the lintel can easily damage the internal reinforcement, compromising the overall structural safety of the lintel and rendering it ineffective. Furthermore, the lintel needs to be sealed after slotting, making the construction process cumbersome, time-consuming, and labor-intensive, increasing construction costs.

[0003] Therefore, in the prior art, when installing the distribution box, the lintel at the distribution box is grooved and blocked, which easily destroys the overall structural safety of the lintel. Summary of the Invention

[0004] The embodiment of the present invention provides a casting device and a construction method for a prefabricated distribution box lintel, aiming to solve the problem in the prior art that the lintel at the distribution box is grooved and blocked when the distribution box is installed, which easily damages the overall structural safety of the lintel.

[0005] In the first aspect, an embodiment of the present invention provides a casting device for a lintel at a prefabricated distribution box, comprising: a template box, a first telescopic support assembly and a second telescopic support assembly; a casting cavity is provided inside the template box, the telescopic support assembly and the second telescopic support assembly are both provided in the casting cavity, and the telescopic support assembly and the second telescopic support assembly can be enclosed with each other to form reserved holes of different sizes.

[0006] Furthermore, the first telescopic support assembly includes a first telescopic plate, a second telescopic plate and a first telescopic connecting piece; the second telescopic support assembly includes a third telescopic plate, a fourth telescopic plate and a second telescopic connecting piece; the first telescopic plate and the second telescopic plate are arranged in the casting cavity at intervals, and the first telescopic plate is detachably connected to the second telescopic plate through the first telescopic connecting piece; the third telescopic plate is arranged at one end of the first telescopic plate and the second telescopic plate, and the fourth telescopic plate is arranged at the other end of the first telescopic plate and the second telescopic plate, and the third telescopic plate is detachably connected to the fourth telescopic plate through the second telescopic connecting piece; wherein the lengths of the first telescopic plate, the second telescopic plate, the third telescopic plate and the fourth telescopic plate are all adjustable, and the first telescopic plate, the second telescopic plate, the third telescopic plate and the fourth telescopic plate are mutually enclosed to form the reserved hole.

[0007] Furthermore, the first telescopic plate includes at least two first support plates and a plurality of first fasteners; any one of the at least two first support plates is detachably connected to the second telescopic plate through the first telescopic connector; each first support plate is provided with a plurality of first connection holes, the at least two first support plates are arranged in sequence, and two adjacent first support plates at least partially overlap with each other, and the overlapping first connection holes on the two adjacent first support plates are connected by the first fastener.

[0008] Furthermore, the first telescopic connecting member includes a first connecting piece, a second connecting piece and a second fastener; a plurality of second connecting holes are provided on the first connecting piece and the second connecting piece, the first connecting piece is provided on the first telescopic plate, and the second connecting piece is provided on the second telescopic plate; wherein the second fastener is used to connect the overlapping second connecting holes on the first connecting piece and the second connecting piece.

[0009] Furthermore, the second telescopic connecting member includes a third connecting piece, a fourth connecting piece and a third fastener; the third connecting piece and the fourth connecting piece are both provided with a plurality of third connecting holes, the third connecting piece is provided on the third telescopic plate, and the fourth connecting piece is provided on the fourth telescopic plate; wherein the third fastener is used to connect the overlapping third connecting holes on the third connecting piece and the fourth connecting piece.

[0010] Furthermore, the template box includes a bottom plate and a side plate assembly; the side plate assembly is vertically arranged on the bottom plate, and the bottom plate and the side plate assembly enclose to form the casting cavity.

[0011] Furthermore, the height of the first telescopic support assembly and the height of the second telescopic support assembly are both greater than or equal to the height of the template box.

[0012] In a second aspect, an embodiment of the present invention further provides a construction method of a casting device, which is applied to the casting device for the lintel of the prefabricated distribution box as described in the first aspect, and the method includes:

[0013] Splicing the first telescopic support assembly and the second telescopic support assembly according to a preset reserved hole size, and installing the spliced first telescopic support assembly and the second telescopic support assembly in the casting cavity of the template box;

[0014] Installing the steel bar assembly in the casting cavity;

[0015] pouring concrete into the space enclosed between the inner wall of the template box and the outer wall of the telescopic support assembly and the outer wall of the second telescopic support assembly;

[0016] After the concrete in the template box is solidified and formed, the template box, the telescopic support assembly and the second telescopic support assembly are removed to obtain the lintel at the distribution box.

[0017] An embodiment of the present invention provides a casting device for prefabricating a lintel at a distribution box and a construction method thereof. The device includes a template box, a first telescopic support assembly, and a second telescopic support assembly. A casting cavity is provided inside the template box, and the telescopic support assembly and the second telescopic support assembly are both provided in the casting cavity, and the telescopic support assembly and the second telescopic support assembly can be mutually enclosed to form reserved holes of different sizes. The present invention can form reserved holes of different sizes by mutually enclosing the first telescopic support assembly and the second telescopic support assembly, and by placing the first telescopic support assembly and the second telescopic support assembly in the casting cavity of the template box before casting the lintel, a lintel with a reserved hole can be prefabricated, and the electromechanical pipelines of the distribution box can directly pass through the reserved hole on the lintel, so that no grooving and blocking are required during the subsequent electromechanical construction at the distribution box, which can reduce the construction process and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A cross-sectional view of a first telescopic support assembly provided in one embodiment of the present invention;

[0020] Figure 2 for Figure 1 AA section view in the figure;

[0021] Figure 3 A front view of a first telescopic plate provided in one embodiment of the present invention;

[0022] Figure 4 A cross-sectional view of a lintel provided in one embodiment of the present invention;

[0023] Figure 5 A schematic flow chart of a construction method of a casting device provided in one embodiment of the present invention.

[0024] Among them, the reference numerals in the figures are as follows:

[0025] 1. First telescopic support assembly; 11. First telescopic plate; 111. First support plate; 1111. First connecting hole; 12. Second telescopic plate; 13. First telescopic connector; 131. First connecting piece; 132. Second connecting piece; 133. Second connecting hole; 2. Reserved hole; 3. Steel bar assembly; 31. First steel bar; 32. Second steel bar; 33. Third steel bar. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0028] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in the specification and appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0029] It should be further understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0030] See also Figures 1 to 4 , Figure 1 A cross-sectional view of a first telescopic support assembly provided in one embodiment of the present invention; Figure 2 for Figure 1 AA section view in the figure; Figure 3 A front view of a first telescopic plate provided in one embodiment of the present invention; Figure 4 A cross-sectional view of a lintel provided in one embodiment of the present invention; Figure 5 A schematic flow chart of a construction method of a casting device provided in one embodiment of the present invention.

[0031] An embodiment of the present invention provides a casting device for a lintel at a prefabricated distribution box, comprising: a template box (not shown), a first telescopic support assembly 1 and a second telescopic support assembly (not shown); a casting cavity is provided inside the template box, the telescopic support assembly and the second telescopic support assembly are both arranged in the casting cavity, and the telescopic support assembly and the second telescopic support assembly can be enclosed with each other to form reserved holes 2 of different sizes.

[0032] In this embodiment, see Figure 1 and Figure 4 The pouring device for the lintel at the prefabricated distribution box provided by the embodiment of the present invention is composed of a template box, a first telescopic support assembly 1 and a second telescopic support assembly, wherein a pouring cavity is provided inside the template box, and the template box provides support for the prefabricated lintel to ensure that the size of the lintel meets the requirements. The first telescopic support assembly 1 and the second telescopic support assembly can be enclosed with each other to form reserved holes 2 of different sizes. After the first telescopic support assembly 1 and the second telescopic support assembly are arranged in the pouring cavity of the template box, the lintel is poured. The lintel at the distribution box with the reserved hole 2 can be prefabricated, so that there is no need for grooving and blocking during the subsequent electromechanical construction at the distribution box. The electromechanical pipelines of the distribution box can directly pass through the reserved hole 2 on the lintel, which can reduce the construction process, save construction time, save a lot of labor and material resources, reduce costs, and better ensure the quality of the lintel construction.

[0033] In the specific application process, refer to Figure 1 and Figure 4 First, the first telescopic support assembly 1 and the second telescopic support assembly are spliced according to the preset size of the reserved hole 2, and the spliced first telescopic support assembly 1 and the second telescopic support assembly are installed in the casting cavity of the template box, so that space for the reserved hole 2 is reserved in the casting cavity by the first telescopic support assembly 1 and the second telescopic support assembly. Then, the steel bar assembly 3 is installed in the casting cavity. Next, concrete is poured in the space enclosed by the inner wall of the template box and the outer wall and the outer wall of the telescopic support assembly and the second telescopic support assembly. Finally, after the concrete in the casting cavity is solidified and formed, the template box, the telescopic support assembly and the second telescopic support assembly are removed to obtain the lintel at the distribution box with the reserved hole 2.

[0034] For further information, see Figure 4The steel bar assembly 3 includes a first steel bar 31, a second steel bar 32, and a plurality of third steel bars 33. The first steel bar 31 and the second steel bar 32 are arranged at intervals, and the plurality of third steel bars 33 are arranged at intervals on the first steel bar 31 and the second steel bar 32. After the first steel bar 31, the second steel bar 32, and the plurality of third steel bars 33 are placed in the casting cavity, the first telescopic support assembly 1 and the second telescopic support assembly are located in the space enclosed by the first steel bar 31, the second steel bar 32, and the corresponding two adjacent third steel bars 33.

[0035] In a more specific embodiment, the first telescopic support assembly 1 includes a first telescopic plate 11, a second telescopic plate 12 and a first telescopic connector 13; the second telescopic support assembly includes a third telescopic plate, a fourth telescopic plate and a second telescopic connector; the first telescopic plate 11 and the second telescopic plate 12 are arranged in the casting cavity at intervals, and the first telescopic plate 11 is detachably connected to the second telescopic plate 12 through the first telescopic connector 13; the third telescopic plate is arranged at one end of the first telescopic plate 11 and the second telescopic plate 12, and the fourth telescopic plate is arranged at the other end of the first telescopic plate 11 and the second telescopic plate 12, and the third telescopic plate is detachably connected to the fourth telescopic plate through the second telescopic connector; wherein the lengths of the first telescopic plate 11, the second telescopic plate 12, the third telescopic plate and the fourth telescopic plate are all adjustable, and the first telescopic plate 11, the second telescopic plate 12, the third telescopic plate and the fourth telescopic plate are mutually enclosed to form the reserved hole 2.

[0036] In this embodiment, see Figure 1The first telescopic support assembly 1 is composed of a first telescopic plate 11, a second telescopic plate 12, and a first telescopic connector 13. The first telescopic plate 11 and the second telescopic plate 12 are spaced apart and symmetrical to each other. The first telescopic plate 11 is connected to the second telescopic plate 12 via the first telescopic connector 13, wherein the distance between the first telescopic plate 11 and the second telescopic plate 12 can be adjusted via the first telescopic connector 13. The second telescopic support assembly has a similar structure to the first telescopic support assembly 1. The second telescopic support assembly is composed of a third telescopic plate, a fourth telescopic plate, and a second telescopic connector. The third and fourth telescopic plates are spaced apart and symmetrical to each other. The third telescopic plate is connected to the fourth telescopic plate via the second telescopic connector, wherein the distance between the third and fourth telescopic plates can be adjusted via the second telescopic connector. The lengths of the first telescopic plate 11, the second telescopic plate 12, the third telescopic plate, and the fourth telescopic plate are all adjustable so that the first telescopic plate 11, the third telescopic plate 12, and the fourth telescopic plate can be sequentially combined to form reserved holes 2 of different sizes. When the lengths of the first telescopic plate 11 and the second telescopic plate 12 represent the length of the reserved hole 2, the lengths of the third telescopic plate and the fourth telescopic plate can represent the width of the reserved hole 2. Furthermore, when designing the first telescopic connector 13 and the second telescopic connector, interference or obstruction between the first telescopic connector 13 and the second telescopic connector should be avoided when the first telescopic plate 11, the third telescopic plate 12, and the fourth telescopic plate are sequentially combined to form the reserved hole 2.

[0037] In the specific application process, first, according to the required size of the reserved hole 2, the lengths of the first telescopic plate 11, the second telescopic plate 12, the third telescopic plate and the fourth telescopic plate are adjusted, the first telescopic plate 11 and the second telescopic plate 12 are arranged at intervals, and the distance between the first telescopic plate 11 and the second telescopic plate 12 is equal to the length of the third telescopic plate, and the first telescopic plate 11 and the second telescopic plate 12 are connected by the first telescopic connector 13; then, the third telescopic plate is placed at one end of the first telescopic plate 11 and the second telescopic plate 12, and the fourth telescopic plate is placed at the other end of the first telescopic plate 11 and the second telescopic plate 12, and the third telescopic plate is connected to the fourth telescopic plate by the second telescopic connector. The space enclosed by the first telescopic plate 11, the third telescopic plate, the second telescopic plate 12 and the fourth telescopic plate in sequence is the reserved hole 2, thereby splicing the first telescopic support assembly 1 and the second telescopic support assembly, and the spliced first telescopic support assembly 1 and the second telescopic support assembly are placed in the casting cavity of the template box.

[0038] In a more specific embodiment, the first telescopic plate 11 includes at least two first support plates 111 and a plurality of first fasteners; any one of the at least two first support plates 111 is detachably connected to the second telescopic plate 12 via the first telescopic connector 13; each first support plate 111 is provided with a plurality of first connection holes 1111, and the at least two first support plates 111 are arranged sequentially, and two adjacent first support plates 111 at least partially overlap with each other, and the overlapping first connection holes 1111 on the two adjacent first support plates 111 are connected by the first fasteners.

[0039] In this embodiment, see Figure 1 、 Figure 2 and Figure 3 The first telescopic plate 11 is composed of at least two first support plates 111 and a plurality of first fasteners. Any one of the at least two first support plates 111 is connected to the first telescopic connector 13 so as to be detachably connected to the second telescopic plate 12 via the first telescopic connector 13. Each first support plate 111 is provided with a plurality of first connection holes 1111. At least two first support plates 111 are arranged in sequence, and two adjacent first support plates 111 at least partially overlap with each other. The overlapping first connection holes 1111 on two adjacent first support plates 111 are connected by first fasteners to connect the two adjacent first support plates 111. By connecting any two adjacent first support plates 111 of the at least two first support plates 111 arranged in sequence, the at least two first support plates 111 can be spliced. The length of the first telescopic plate 11 can be adjusted by adjusting the size of the overlapping portion between any two adjacent first support plates 111. During use, each first connection hole 1111 on each first support plate 111 is connected to a first fastener. This means that the first connection holes 1111 in the overlapping portion of any two adjacent first support plates 111, as well as the first connection holes 1111 in the non-overlapping portion, between at least two first support plates 111 arranged sequentially, must be connected to a first fastener to prevent concrete leakage from the first connection holes 1111 in the non-overlapping portion during concrete pouring. Furthermore, the structures of the second, third, and fourth telescopic plates 12, 111, and 1114 are similar to those of the first telescopic plate 11 and will not be further described here.

[0040] In a more specific embodiment, the first telescopic connecting member 13 includes a first connecting piece 131, a second connecting piece 132, and a second fastener; the first connecting piece 131 and the second connecting piece 132 are both provided with a plurality of second connecting holes 133, the first connecting piece 131 is provided on the first telescopic plate 11, and the second connecting piece 132 is provided on the second telescopic plate 12; wherein the second fastener is used to connect the overlapping second connecting holes 133 on the first connecting piece 131 and the second connecting piece 132.

[0041] In this embodiment, see Figure 1 The first telescopic connecting member 13 is composed of a first connecting piece 131, a second connecting piece 132 and a second fastener. The first connecting piece 131 and the second connecting piece 132 are respectively arranged on the first telescopic plate 11 and the second telescopic plate 12. The first connecting piece 131 and the second connecting piece 132 are both provided with a plurality of second connecting holes 133. When the first telescopic plate 11 and the second telescopic plate 12 are arranged at intervals, the first connecting piece 131 and the second connecting piece 132 are driven to intersect, and there are overlapping second connecting holes 133 at the intersection of the first connecting piece 131 and the second connecting piece 132, the overlapping second connecting holes 133 on the first connecting piece 131 and the second connecting piece 132 can be connected by the second fastener, so that the first connecting piece 131, the second connecting piece 132 and the second fastener connect the first telescopic plate 11 and the second telescopic plate 12. When the distance between the first and second telescopic plates 11, 12 changes, the intersection position of the first and second connecting plates 131, 132 changes, thereby changing the overlapping second connecting holes 133 on the first and second connecting plates 131, 132. It can also be understood that by adjusting the intersection position of the first and second connecting plates 131, 132 through the plurality of second connecting holes 133 on the first and second connecting plates 131, 132, the distance between the first and second telescopic plates 11, 12 can be adjusted. Therefore, the size of the reserved hole 2 can be adjusted by adjusting the length and / or the distance between the first and second telescopic plates 11, 12, and correspondingly adjusting the length and distance between the third and fourth telescopic plates.

[0042] In a more specific embodiment, the second telescopic connecting member includes a third connecting piece, a fourth connecting piece and a third fastener; the third connecting piece and the fourth connecting piece are both provided with a plurality of third connecting holes, the third connecting piece is provided on the third telescopic plate, and the fourth connecting piece is provided on the fourth telescopic plate; wherein the third fastener is used to connect the overlapping third connecting holes on the third connecting piece and the fourth connecting piece.

[0043] In this embodiment, the second telescopic connector comprises a third connecting piece, a fourth connecting piece, and a third fastener. The third connecting piece and the fourth connecting piece are respectively disposed on the third and fourth telescopic plates, and each of the third and fourth connecting pieces is provided with a plurality of third connecting holes. When the third and fourth telescopic plates are spaced apart, thereby causing the third connecting piece to intersect with the fourth connecting piece, and when overlapping third connecting holes exist at the intersection of the third and fourth connecting pieces, the third fastener can be used to connect the overlapping third connecting holes of the third and fourth connecting pieces, thereby connecting the third and fourth telescopic plates together. When the distance between the third and fourth telescopic plates changes, the intersection position of the third and fourth connecting pieces changes, thereby causing the overlapping third connecting holes of the third and fourth connecting pieces to change. Alternatively, it can be understood that the intersection position of the third and fourth connecting pieces can be adjusted by adjusting the plurality of third connecting holes on the third and fourth connecting pieces, thereby adjusting the distance between the third and fourth telescopic plates. In addition, the structure of the second telescopic connector is similar to that of the first telescopic connector 13, see Figure 1 When designing the second telescopic connector and the first telescopic connector 13, it should be avoided that the first connecting piece 131 and the second connecting piece 132 in the first telescopic connector 13 and the third connecting piece and the fourth connecting piece in the second telescopic connector will interfere with or block each other when the first telescopic plate 11, the third telescopic plate, the second telescopic plate 12 and the fourth telescopic plate are sequentially enclosed to form the reserved hole 2.

[0044] In a more specific embodiment, the template box includes a bottom plate and a side plate assembly; the side plate assembly is vertically arranged on the bottom plate, and the bottom plate and the side plate assembly enclose to form the casting cavity.

[0045] In this embodiment, the formwork box is composed of a bottom plate and side plate assemblies. The side plate assemblies are vertically mounted on the bottom plate. The bottom plate and side plate assemblies enclose a groove structure with an open top. The space enclosed by the bottom plate and side plate assemblies is the casting cavity. Specifically, the side plate assembly includes four side plates, which are sequentially enclosed around the four edges of the bottom plate, and the four side plates and the bottom plate enclose a casting cavity.

[0046] In a more specific embodiment, the height of the first telescopic support assembly 1 and the height of the second telescopic support assembly are both greater than or equal to the height of the template box.

[0047] In this embodiment, the height of the first telescopic support assembly 1 and the height of the second telescopic support assembly are both greater than or equal to the height of the template box, which can avoid the problem of concrete flowing into the reserved hole 2 formed by the first telescopic support assembly 1 and the second telescopic support assembly when pouring concrete in the template box later.

[0048] The embodiment of the present invention further provides a construction method of a casting device, which is applied to the casting device for the lintel at the prefabricated distribution box provided in any of the above embodiments, and is also referred to in conjunction with the embodiment of the present invention. Figure 5 , Figure 5 This is a flow chart of a construction method of a casting device provided in one embodiment of the present invention. The construction method includes steps S11 to S14.

[0049] S11. Splice the first telescopic support assembly and the second telescopic support assembly according to a preset reserved hole size, and install the spliced first telescopic support assembly and the second telescopic support assembly in the casting cavity of the template box.

[0050] In this embodiment, the first and second telescopic support assemblies are spliced together so that they can be enclosed by each other to form a reserved hole of a desired size. The spliced first and second telescopic support assemblies are installed in the casting cavity of the formwork box, thereby leaving a space for the reserved hole in the casting cavity.

[0051] S12, installing the steel bar assembly in the casting cavity.

[0052] In this embodiment, a steel bar assembly is placed in the casting cavity to enhance the strength and toughness of the lintel at the distribution box obtained later, thereby ensuring the load-bearing capacity of the lintel at the distribution box.

[0053] In one embodiment, the steel bar assembly includes a first steel bar, a second steel bar, and a plurality of third steel bars, and step S12 includes:

[0054] Arrange the first steel bars and the second steel bars at intervals;

[0055] connecting both ends of each of the plurality of third steel bars to the first steel bar and the second steel bar, respectively, so that the plurality of third steel bars are arranged on the first steel bar and the second steel bar at intervals;

[0056] The first steel bar, the second steel bar and the plurality of third steel bars are placed in the casting cavity.

[0057] In this embodiment, the reinforcement assembly includes a first reinforcement bar, a second reinforcement bar, and a plurality of third reinforcement bars. The first reinforcement bar and the second reinforcement bar are spaced apart, and the plurality of third reinforcement bars are spaced apart above the first reinforcement bar and the second reinforcement bar. After the first reinforcement bar, the second reinforcement bar, and the plurality of third reinforcement bars are placed in the casting cavity, the first and second telescopic support assemblies are positioned in the space enclosed by the first reinforcement bar, the second reinforcement bar, and the corresponding two adjacent third reinforcement bars.

[0058] S13, pouring concrete into the space enclosed between the inner wall of the template box and the outer wall of the telescopic support assembly and the outer wall of the second telescopic support assembly.

[0059] In this embodiment, concrete is poured in the space enclosed between the inner wall of the template box and the outer wall of the telescopic support assembly and the outer wall of the second telescopic support assembly, that is, concrete is poured in the remaining space in the pouring cavity except for the reserved hole enclosed by the first telescopic support assembly and the second telescopic support assembly.

[0060] S14. After the concrete in the template box is solidified and formed, the template box, the telescopic support assembly and the second telescopic support assembly are removed to obtain the lintel at the distribution box.

[0061] In this embodiment, after the concrete in the formwork box is solidified and formed, the formwork box, the telescopic support assembly and the second telescopic support assembly are removed to obtain the lintel at the distribution box. The lintel at the distribution box has a reserved hole, so that there is no need to cut grooves and seal during the subsequent electromechanical construction at the distribution box. The electromechanical pipelines of the distribution box can directly pass through the reserved holes on the lintel, which can reduce the construction process, save construction time, save a lot of labor and material resources, reduce costs, and better ensure the quality of the lintel construction.

[0062] In one embodiment, after step S13 and before step S14, the construction method of the pouring device provided by the embodiment of the present invention further includes:

[0063] The concrete poured in the formwork box is cured.

[0064] In this embodiment, the concrete in the casting formwork box is cured for a period of time to ensure that the concrete maintains appropriate humidity and temperature during the hardening process, thereby achieving the expected strength and durability.

[0065] The present invention discloses a casting device for prefabricating a lintel at a distribution box and a construction method thereof. The device includes a template box, a first telescopic support assembly, and a second telescopic support assembly. A casting cavity is provided inside the template box, and the telescopic support assembly and the second telescopic support assembly are both provided in the casting cavity. The telescopic support assembly and the second telescopic support assembly can be mutually enclosed to form reserved holes of different sizes. The present invention can form reserved holes of different sizes by mutually enclosing the first telescopic support assembly and the second telescopic support assembly, and cast the lintel after the first telescopic support assembly and the second telescopic support assembly are provided in the casting cavity of the template box. A lintel with a reserved hole can be prefabricated, and the electromechanical pipelines of the distribution box can directly pass through the reserved hole on the lintel, so that no grooving and blocking are required during the subsequent electromechanical construction at the distribution box, which can reduce construction processes and reduce costs.

[0066] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A casting device for a lintel at a prefabricated distribution box, characterized in that: include: a template box, a first telescopic support assembly and a second telescopic support assembly; A casting cavity is provided inside the template box, and the telescopic support assembly and the second telescopic support assembly are both provided in the casting cavity, and the telescopic support assembly and the second telescopic support assembly can be enclosed with each other to form reserved holes of different sizes.

2. The pouring device for prefabricated distribution box lintel according to claim 1, characterized in that: The first telescopic support assembly includes a first telescopic plate, a second telescopic plate and a first telescopic connecting member; the second telescopic support assembly includes a third telescopic plate, a fourth telescopic plate and a second telescopic connecting member; The first telescopic plate and the second telescopic plate are spaced apart and arranged in the casting cavity, and the first telescopic plate is detachably connected to the second telescopic plate via the first telescopic connector; the third telescopic plate is arranged at one end of the first telescopic plate and the second telescopic plate, and the fourth telescopic plate is arranged at the other end of the first telescopic plate and the second telescopic plate, and the third telescopic plate is detachably connected to the fourth telescopic plate via the second telescopic connector; The lengths of the first telescopic plate, the second telescopic plate, the third telescopic plate and the fourth telescopic plate are all adjustable, and the first telescopic plate, the second telescopic plate, the third telescopic plate and the fourth telescopic plate are mutually enclosed to form the reserved hole.

3. The pouring device for prefabricated distribution box lintel according to claim 2, characterized in that: The first telescopic plate includes at least two first support plates and a plurality of first fasteners; any one of the at least two first support plates is detachably connected to the second telescopic plate via the first telescopic connector; each first support plate is provided with a plurality of first connection holes, the at least two first support plates are arranged in sequence, and two adjacent first support plates at least partially overlap with each other, and the overlapping first connection holes on the two adjacent first support plates are connected by the first fastener.

4. The pouring device for prefabricated distribution box lintel according to claim 2, characterized in that: The first telescopic connecting member includes a first connecting piece, a second connecting piece and a second fastener; a plurality of second connecting holes are provided on the first connecting piece and the second connecting piece, the first connecting piece is provided on the first telescopic plate, and the second connecting piece is provided on the second telescopic plate; wherein the second fastener is used to connect the overlapping second connecting holes on the first connecting piece and the second connecting piece.

5. The pouring device for prefabricated distribution box lintel according to claim 2 or 4, characterized in that: The second telescopic connecting member includes a third connecting piece, a fourth connecting piece and a third fastener; a plurality of third connecting holes are provided on the third connecting piece and the fourth connecting piece, the third connecting piece is provided on the third telescopic plate, and the fourth connecting piece is provided on the fourth telescopic plate; wherein the third fastener is used to connect the overlapping third connecting holes on the third connecting piece and the fourth connecting piece.

6. The pouring device for prefabricated distribution box lintel according to claim 1, characterized in that: The template box includes a bottom plate and a side plate assembly; the side plate assembly is vertically arranged on the bottom plate, and the bottom plate and the side plate assembly enclose to form the casting cavity.

7. The pouring device for prefabricated distribution box lintel according to claim 1, characterized in that: The height of the first telescopic support assembly and the height of the second telescopic support assembly are both greater than or equal to the height of the template box.

8. A construction method of a casting device, characterized in that: The method applied to the casting device for the lintel of a prefabricated distribution box according to any one of claims 1 to 6 comprises: Splicing the first telescopic support assembly and the second telescopic support assembly according to a preset reserved hole size, and installing the spliced first telescopic support assembly and the second telescopic support assembly in the casting cavity of the template box; Installing the steel bar assembly in the casting cavity; pouring concrete into the space enclosed between the inner wall of the template box and the outer wall of the telescopic support assembly and the outer wall of the second telescopic support assembly; After the concrete in the template box is solidified and formed, the template box, the telescopic support assembly and the second telescopic support assembly are removed to obtain the lintel at the distribution box.

9. The construction method of the pouring device according to claim 8, characterized in that: The steel bar assembly includes a first steel bar, a second steel bar, and a plurality of third steel bars; and installing the steel bar assembly in the casting cavity includes: Arrange the first steel bars and the second steel bars at intervals; connecting both ends of each of the plurality of third steel bars to the first steel bar and the second steel bar, respectively, so that the plurality of third steel bars are arranged on the first steel bar and the second steel bar at intervals; The first steel bar, the second steel bar and the plurality of third steel bars are placed in the casting cavity.

10. The construction method of the pouring device according to claim 8, characterized in that: After the step of pouring concrete into the space enclosed between the inner wall of the formwork box and the outer wall of the telescopic support assembly and the outer wall of the second telescopic support assembly, and before removing the formwork box, the telescopic support assembly and the second telescopic support assembly after the concrete is solidified and formed to obtain the lintel with the reserved hole, the method further includes: The concrete poured in the formwork box is cured.

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