Telescopic hole mold

Abstract

The utility model provides a telescopic hole mould which comprises a plurality of corner components and a plurality of connecting structures, each corner component comprises a bending piece, two ends of each bending piece are provided with sockets, a preset mould angle is formed between the orientations of the two ends of each bending piece, and the connecting structures are connected between the end parts of the bending pieces of different corner components so as to connect the bending pieces end to end. The two ends, in the length direction, of the connecting structure are inserted into the inserting openings of the corresponding bending pieces correspondingly, and the length, entering the corresponding bending pieces, of the connecting structure is adjustable. According to the telescopic hole mold provided by the utility model, the length of the part, inserted into the end part of the bending piece, of the connecting structure can be adjusted, so that more connecting structures can enter the bending piece by adjusting the positions of the bending piece and the connecting structures after concrete pouring is completed, and the overall size of the telescopic hole mold is further reduced; demolding of the telescopic hole mold and the side wall of the hole is rapidly achieved, the problems of deformation, damage and the like are not prone to occurring in the dismounting process, and the telescopic hole mold can be rapidly put into use next time.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete pouring mould technical field, specifically, relate to a telescopic hole mould. BACKGROUND

[0002] In the construction engineering concrete structure construction, the forming quality of wall and floor reserved hole (including door and window hole, equipment pipeline hole etc.) directly influences the later period installation precision and structural safety. The traditional construction technology generally adopts the on -the -spot processing wooden or steel hole formwork to carry out the formwork, and this technology has remarkable defects in practical application:

[0003] Material cost and construction efficiency contradiction is outstanding: the wooden formwork needs to carry out on -the -spot cutting according to the hole size, and 15%-20% material loss rate (according to the industry research data of building construction formwork safety technical specification) is generated, and the single processing time reaches 1.5-2 hours / hole, seriously restricts the construction progress. Steel formwork can be reused, but the quality of a single set of mould reaches 80-120kg, leading to the need of heavy equipment for transportation and installation. The formwork removal process has structural defects: the existing formwork adopts the inclined support fixed mode, needs to carry out violent knocking operation when removing, causes more than 30% concrete corner damage rate (referring to GB50204-2015 concrete structure acceptance standard), and the formwork body deformation rate reaches 40%-60%, directly leads to the reuse frequency less than 3 times (industry statistical average).

[0004] Poor size adaptability leads to resource waste: the hole size in building design exists ±50mm level difference change, and the traditional mould lacks adjustable mechanism, forces the construction unit to configure multi-specification formwork library, and generates 5-8% idle inventory (China Construction Industry Association formwork scaffold branch 2019 annual report).

[0005] More seriously, the formwork waste produced by the existing process has accounted for 12%-15% of the total amount of solid waste on the construction site (monitoring data of green construction guide of Ministry of Housing and Urban-Rural Development), and forms sharp contradiction with the requirement of green construction. Therefore, it is urgent to develop a standardized hole mould system with fast dismounting characteristics, high reuse rate and multi-size requirement. UTILITARY MODEL CONTENT

[0006] The utility model aims at solving one of the technical problems in the related art to some extent. To this end, the utility model provides a telescopic hole mould, which is convenient to dismount and can be reused.

[0007] To achieve the above object, the utility model provides a telescopic hole mould, including a plurality of corner members and a plurality of connecting structures, the corner member includes the bending piece, the both ends of bending piece have the spigot, and it has the preset mould angle between the orientation of both ends, the connecting structure is connected between the bending piece end of different corner member, to connect the plurality of bending piece head to tail, the both ends of connecting structure along its length direction are inserted respectively in the spigot of corresponding bending piece, and the length of connecting structure into corresponding bending piece is adjustable.

[0008] Optionally, the preset mould angle is greater than 0° and less than 180°.

[0009] Optionally, the preset mould angle is 90°.

[0010] Optionally, at least part of the bending piece includes a first angle pipe and a second angle pipe, the extension direction between the first angle pipe and the extension direction of the second angle pipe has the preset mould angle, the first end of the first angle pipe and the first end of the second angle pipe are connected with each other, and the second end of the first angle pipe and the second end of the second angle pipe are formed as the two ends of the bending piece.

[0011] Optionally, the corner member further includes a first reinforcing rib, and the first reinforcing rib is connected between the inner side surface of the first angle pipe and the inner side surface of the second angle pipe.

[0012] Optionally, the preset mould angle is 90°, and the telescopic hole mould includes four corner members.

[0013] Optionally, at least part of the bending piece includes a third angle pipe, an arc pipe or an inclined pipe and a fourth angle pipe, the extension direction between the third angle pipe and the extension direction of the fourth angle pipe has the preset mould angle, the first end of the third angle pipe and the first end of the fourth angle pipe are connected with the two ends of the arc pipe respectively, and the second end of the third angle pipe and the second end of the fourth angle pipe are formed as the two ends of the bending piece.

[0014] Optionally, the corner member further includes a second reinforcing rib, and the second reinforcing rib is connected between the inner side surface of the third angle pipe and the inner side surface of the fourth angle pipe.

[0015] Optionally, the preset mould angle is 90°, and the telescopic hole mould includes four corner members, wherein the bending piece of two corner members includes the first angle pipe and the second angle pipe, and the bending piece of two corner members includes the third angle pipe, the arc pipe and the fourth angle pipe.

[0016] Optionally, the cross-sectional shape of the bending piece is rectangular.

[0017] Optionally, the cross-sectional shape of the bending member is square.

[0018] Optionally, the connecting structure comprises an inner connecting column, the cross-sectional shape of the inner connecting column corresponds to the cross-sectional shape of the bending member, and both ends of the inner connecting column are accommodated in the corresponding bending member.

[0019] Optionally, at least part of the connecting structure further comprises a connecting extension, the connecting extension is sleeved on the inner connecting column and located between adjacent bending members; or the connecting extension is formed integrally with the inner connecting column and located between adjacent bending members.

[0020] Optionally, the connecting extension is welded to the inner connecting column.

[0021] Optionally, the corner member further comprises a support wing plate, the support wing plate is fixed to the outer side of the bending member and extends along the length direction of the bending member, and at least part of the connecting structure further comprises a support flat plate, the support flat plate is fixed to the outer side of the connecting extension and extends along the length direction of the connecting structure.

[0022] Optionally, the support flat plate is formed integrally with the connecting extension.

[0023] Optionally, the telescopic opening mold further comprises a plurality of covering members, the covering members are fixedly arranged outside the connecting part of the bending member and the adjacent bending member or the adjacent connecting extension, and cover the joint between the bending member and the adjacent bending member or the adjacent connecting extension.

[0024] Optionally, the covering member is fixedly arranged outside the connecting part of the support wing plate and the adjacent support wing plate or the adjacent support flat plate, and covers the joint between the support wing plate and the adjacent support wing plate or the adjacent support flat plate.

[0025] Optionally, the telescopic opening mold further comprises at least one sealing strip, the shape of the sealing strip corresponds to the connecting pattern shape of the plurality of bending members and the plurality of connecting extensions, the plurality of bending members and the plurality of connecting extensions are provided with the sealing strip on at least one side along the opening direction of the telescopic opening mold, and the sealing strip is fixedly connected to the corresponding side of the plurality of bending members and the plurality of connecting extensions.

[0026] Optionally, one side of the sealing strip has an annular mounting groove, and one side edge of the plurality of support wing plates and the plurality of support flat plates is accommodated in the annular mounting groove.

[0027] Alternatively, when the telescopic opening mold adopts a design of no supporting wing plate or supporting flat plate, the sealing strip is a sheet and is attached to at least one side of the plurality of bending pieces and the plurality of connecting extension pieces along the opening direction of the telescopic opening mold.

[0028] Optionally, the telescopic opening mold further comprises a plurality of adjusting assemblies, and the corner member further comprises a first connecting seat arranged on the side surface of each of the bending pieces, and each of the two adjusting ends of the adjusting assembly is connected with the first connecting seat of the adjacent bending piece, and the distance between the two adjusting ends of the adjusting assembly is adjustable.

[0029] Optionally, the telescopic opening mold further comprises a plurality of adjusting assemblies, and the corner member further comprises a first connecting seat arranged on the side surface of each of the bending pieces, and at least part of the connecting structure further comprises a second connecting seat arranged on the side surface of each of the connecting extension pieces, and each of the two adjusting ends of the adjusting assembly is connected with the first connecting seat of the adjacent bending piece or the second connecting seat of the adjacent connecting extension piece, and the distance between the two adjusting ends of the adjusting assembly is adjustable.

[0030] Optionally, the first connecting seat is located on the inner side surface of the bending piece.

[0031] Optionally, the adjusting assembly comprises a threaded connecting piece and a threaded matching piece, the threaded connecting piece is fixedly connected with one of the adjacent connecting seats and forms one of the two adjusting ends of the adjusting assembly, the threaded matching piece is fixedly connected with the other of the adjacent connecting seats and forms the other of the two adjusting ends of the adjusting assembly, and the threaded matching piece is movably arranged on the threaded connecting piece.

[0032] Optionally, the adjusting assembly comprises at least one power cylinder, the cylinder body of the power cylinder is fixedly connected with one of the adjacent connecting seats and forms one of the two adjusting ends of the adjusting assembly, the push rod of the power cylinder is fixedly connected with the other of the adjacent connecting seats and forms the other of the two adjusting ends of the adjusting assembly, and the power cylinder is a pneumatic cylinder, a hydraulic cylinder or an electric cylinder.

[0033] Optionally, the adjusting assembly comprises a pull rod, a hinged part and a hinged connecting rod, the hinged part is hingedly connected with one of the adjacent connecting seats through an axial hole, the first end of the hinged connecting rod is hingedly connected with one of the adjacent connecting seats through an axial hole, the second end of the hinged connecting rod is hingedly connected with the hinged part, the pull rod is fixedly connected with the hinged part, the pull rod can drive the hinged part to rotate, so as to pull the adjacent connecting seats to be close to each other through the hinged connecting rod.

[0034] Optionally, a first mounting hole is formed on the bent member, the first mounting hole penetrating the side wall of the bent member along the cross-sectional direction of the bent member, and a second mounting hole is formed on the connecting structure, the second mounting hole penetrating along the cross-sectional direction of the connecting structure, and at least one of the first mounting hole and the second mounting hole extends into a strip-shaped hole along the length direction of the corresponding structure.

[0035] The telescopic opening mold also includes a plurality of mounting fasteners, which pass through the first mounting hole and the second mounting hole and detachably fix the corner member to the connecting structure.

[0036] In the telescopic opening mold provided by this utility model, the corner component corresponds to the corner of the door and window opening or the floor slab opening. The two ends of the bent part of the corner component are connected to other corner components through the connecting structure, so that they are connected end to end to form a complete mold frame, which supports the concrete material around the opening.

[0037] Furthermore, the length of the connecting structure inserted into the bent end is adjustable. After concrete pouring, by adjusting the position of the bent part and the connecting structure, the connecting structure can be inserted more deeply into the bent part, thus reducing the overall size of the telescopic opening mold. This allows for rapid demolding of the telescopic opening mold from the side wall of the poured concrete component opening, making disassembly convenient. Moreover, the telescopic opening mold is not subjected to excessive stress during disassembly, thus reducing the likelihood of deformation or damage. The disassembled telescopic opening mold can be quickly reused, improving both disassembly efficiency and reusability. This effectively reduces material and labor costs for prefabricated components in prefabricated buildings, improving economic efficiency.

[0038] Furthermore, at least part of the connecting structure includes an inner post and a connecting extension piece sleeved on the inner post. The connecting extension piece is connected between the bent parts, thereby enabling the corresponding side of the telescopic opening mold to be lengthened. In this way, by adding or removing the connecting structure including the connecting extension piece, the length of each side of the telescopic opening mold can be flexibly adjusted, thereby improving the adaptability of the telescopic opening mold to openings of different sizes and shapes. Attached Figure Description

[0039] The present invention will be further described below with reference to the accompanying drawings:

[0040] Figure 1 This is a three-dimensional structural schematic diagram of a telescopic opening mold provided in one embodiment of the present invention;

[0041] Figure 2 This is a partial disassembly schematic diagram of the telescopic opening mold provided in one embodiment of the present invention;

[0042] Figure 3 is Figure 1 the front view schematic diagram of the telescopic hole die;

[0043] Figure 4 is Figure 3 the partial enlarged schematic diagram of the telescopic hole die in A area;

[0044] Figure 5 is Figure 3 the partial enlarged schematic diagram of the telescopic hole die in B area;

[0045] Figure 6 is Figure 3 the lower half structure schematic diagram of the C-C cross section of the telescopic hole die;

[0046] Figure 7 is the three-dimensional structure schematic diagram of the corner component in the telescopic hole die provided by the embodiment of the utility model;

[0047] Figure 8 is the three-dimensional structure schematic diagram of the inner connecting column in the telescopic hole die provided by the embodiment of the utility model;

[0048] Figure 9 is the three-dimensional structure schematic diagram of the connecting lengthening structure in the telescopic hole die provided by the embodiment of the utility model Figure 1 ;

[0049] Figure 10 is the three-dimensional structure schematic diagram of the connecting lengthening structure in the telescopic hole die provided by the embodiment of the utility model Figure 2 ;

[0050] Figure 11 is the structure schematic diagram of the covering piece in the telescopic hole die provided by the embodiment of the utility model;

[0051] Figure 12 is the structure schematic diagram of the telescopic hole die with one arc angle, one bevel angle and two right angles provided by another embodiment of the utility model;

[0052] Figure 13 is the structure schematic diagram of the adjusting assembly of the telescopic hole die using single shaft power cylinder provided by an embodiment of the utility model;

[0053] Figure 14 is the structure schematic diagram of the adjusting assembly of the telescopic hole die using double shaft power cylinder provided by another embodiment of the utility model;

[0054] Figure 15is a structural schematic view of the adjusting assembly adopting the connecting rod structure in the telescopic hole mold according to another embodiment of the utility model;

[0055] Figure 16 is Figure 15 a structural schematic view of the adjusting assembly adopting the connecting rod structure in the telescopic hole mold in the demolding state.

[0056] Mark explanation:

[0057] Corner member 100, bending piece 110, first angle pipe 111, second angle pipe 112, first reinforcing rib 101, third angle pipe 113, arc pipe 114, fourth angle pipe 115, second reinforcing rib 102, reinforcing boss 118, support wing plate 120, first connecting seat 130, first connecting plate 131, first reinforcing plate 132, connecting structure 200, inner connecting column 210, connecting lengthening piece 220, support flat plate 230, second connecting seat 240, second connecting plate 241, second reinforcing plate 242, adjusting assembly 300, threaded connecting piece 310, fixed nut 311, threaded cooperation piece 320, first fastening nut 321, second fastening nut 322, covering piece 400, cover plate 410, positioning block 420, guide bent plate 430, sealing strip 500, mounting fastener 600, first mounting hole a, second mounting hole b, connecting hole c. Specific implementation

[0058] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. Based on the embodiments in the embodiments, it is intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0059] In the specification, "one embodiment" or "example" or "example" means that the specific features, structures or characteristics described in connection with the embodiment itself can be included in at least one embodiment of the utility model disclosure. The appearance of the phrase "in one embodiment" at various positions in the specification does not necessarily refer to the same embodiment.

[0060] To solve the above technical problems, the utility model provides a kind of telescopic hole mold, such as Figures 1-3 、 Figure 12As shown, the telescopic hole mold comprises a plurality of corner members 100 and a plurality of connecting structures 200, the corner member 100 comprises a bent piece 110, the two ends of the bent piece 110 are provided with sockets, and the two ends have a preset mold angle between the directions thereof, the connecting structure 200 is connected between the end portions of the bent pieces 110 of different corner members 100 to connect the plurality of bent pieces 110 end to end, the two ends of the connecting structure 200 along the length direction thereof are respectively inserted into the sockets of the corresponding bent pieces 110, and the length of the connecting structure 200 entering the corresponding bent piece 110 is adjustable.

[0061] In the telescopic hole mold provided by the utility model, the corner member 100 corresponds to the corner of the door and window hole or the floor hole, the two ends of the bent piece 110 of the corner member 100 are respectively connected with other corner members 100 through the connecting structure 200, so that the corner members 100 are connected end to end to form a complete mold frame, and the concrete material around the hole is supported;

[0062] Furthermore, the length of the connecting structure 200 inserted into the end portion of the bent piece 110 is adjustable, so that after the concrete pouring is completed, the position of the bent piece 110 and the connecting structure 200 can be adjusted, the connecting structure 200 is inserted into the bent piece 110 more, and the overall size of the hole mold is reduced, so that the telescopic hole mold and the side wall of the poured concrete component hole can be quickly demolded, and the disassembly operation is convenient. In the hole mold disassembly process, the hole mold will not be subjected to excessive stress, and is not prone to deformation, damage and other problems, and the disassembled hole mold can be quickly used next time, so that the disassembly efficiency of the hole mold is improved, the reusability of the hole mold is improved, the material cost and labor cost of the prefabricated component in the fabricated building can be effectively reduced, and the economic benefit is improved.

[0063] Optionally, the preset mold angle can be greater than 0° and less than 180°.

[0064] As an optional embodiment of the utility model, as shown in Figures 1-3 , Figure 12 As shown, the preset mold angle can be 90°, that is, the telescopic hole mold can comprise four corner members 100 and four connecting structures 200 to adapt to general door and window structures.

[0065] In other embodiments of the utility model, the preset mold angle can also be other angles, for example, when the preset mold angle is 120°, six corner members 100 can be connected by six connecting structures 200 to form a hexagonal frame.

[0066] It can be understood that the socket of the bent piece 110 refers to an opening structure formed at the corresponding end portion of the bent piece 110, and the direction of the connecting structure 200 inserted into the socket is consistent with the length direction of the corresponding position of the bent piece 110. For example, as shown inFigure 7 As shown in the drawings, when the bending piece 110 is a tubular structure such as a square tube or a rectangular tube, the end of the bending piece 110 naturally forms an opening, i.e. a socket, which communicates with the internal space thereof. Alternatively, when the bending piece 110 is a solid structure, it can also be hollowed out at both ends to form a socket for the end of the connecting structure 200 to be inserted.

[0067] As an optional embodiment of the present application, as shown in the drawings, Figure 7 As shown in the drawings, at least part of the bending piece 110 includes a first angle pipe 111 and a second angle pipe 112, the extension direction of the first angle pipe 111 and the extension direction of the second angle pipe 112 have a preset mold angle, the first end of the first angle pipe 111 and the first end of the second angle pipe 112 are connected to each other, and the second end of the first angle pipe 111 and the second end of the second angle pipe 112 are formed as the two ends of the bending piece 110, i.e. at least part of the bending piece 110 is in the form of a folding angle (as shown in the Figures 1-3 and Figure 12 lower half part), corresponding to the corner of the door and window structure.

[0068] As an optional embodiment of the present application, as shown in the drawings, Figure 7 As shown in the drawings, the corner member 100 further includes a first reinforcing rib member 101 connected between the inner side surface of the first angle pipe 111 and the inner side surface of the second angle pipe 112.

[0069] As an optional embodiment of the present application, as shown in the drawings, Figures 1-3 As shown in the drawings, the preset mold angle is 90°, and the telescopic hole mold includes four corner members 100.

[0070] As another optional embodiment of the present application, as shown in the drawings, Figure 12 As shown in the drawings, at least part of the bending piece 110 includes a third angle pipe 113, an arc-shaped pipe 114 and a fourth angle pipe 115, the extension direction of the third angle pipe 113 and the extension direction of the fourth angle pipe 115 have a preset mold angle, the first end of the third angle pipe 113 and the first end of the fourth angle pipe 115 are respectively connected to both ends of the arc-shaped pipe 114, and the second end of the third angle pipe 113 and the second end of the fourth angle pipe 115 are respectively formed as the two ends of the bending piece 110. That is, at least part of the bending piece 110 is rounded, so that as shown in the Figure 12 upper left corner part, a rounded design can be left at the corresponding door and window hole.

[0071] As an optional embodiment of the present application, the bending piece 110 in the form of a rounded shape and the bending piece 110 without rounding can exist at the same time, as shown in the drawings. Figure 12

[0072] As an optional embodiment of the present application, as shown in the drawings, Figure 12 ​As shown, the at least partially bent piece 110 includes a third corner pipe 113, an inclined section pipe 116 and a fourth corner pipe 115, the third corner pipe 113 and the fourth corner pipe 115 have a preset mold angle between the extending directions thereof, the first ends of the third corner pipe 113 and the fourth corner pipe 115 are connected with the two ends of the inclined section pipe 116 respectively, and the second ends of the third corner pipe 113 and the fourth corner pipe 115 are formed as the two ends of the bent piece 110. Figure 12 As shown in the upper right corner part, the chamfered hole side wall can be left at the corresponding door and window hole.

[0073] In order to improve the structural strength of the corner component 100, as shown, Figure 12 As a preferred embodiment of the utility model, the at least partially corner component 100 further includes a second reinforcing rib 102, which is connected between the inner side of the third corner pipe 113 and the inner side of the fourth corner pipe 115.

[0074] As an optional embodiment of the utility model, as shown, Figure 7 The cross-sectional shape of the bent piece 110 is rectangular, and correspondingly, as shown, Figures 8-10 The cross-sectional shape of the end of the connecting structure 200 is also rectangular.

[0075] As an optional embodiment of the utility model, as shown, Figure 7 The cross-sectional shape of the bent piece 110 is square, and correspondingly, as shown, Figures 8-10 The cross-sectional shape of the end of the connecting structure 200 is also square.

[0076] As an optional embodiment of the utility model, as shown, Figures 8-10 The connecting structure 200 includes an inner connecting column 210, the cross-sectional shape of the inner connecting column 210 corresponds to the cross-sectional shape of the bent piece 110, and the two ends of the inner connecting column 210 are accommodated in the corresponding bent piece 110.

[0077] In some embodiments of the utility model, as shown, Figure 8 The connecting structure 200 can only include the inner connecting column 210, so that, as shown, Figure 1 The adjacent bent pieces 110 can be directly butted against each other through the inner connecting column 210.

[0078] As an optional embodiment of the utility model, as shown, Figures 9-10 The at least partially connecting structure 200 further includes a connecting extension piece 220, which is sleeved on the inner connecting column 210, or the connecting extension piece 220 is formed integrally with the inner connecting column 210 and located between the adjacent bent pieces 110.

[0079] In the embodiment of the utility model, the inner connecting column 210 of at least part of the connecting structure 200 is further provided with a connecting lengthener 220, the connecting lengthener 220 is connected between the bending pieces 110, so that the edges of the corresponding part of the telescopic opening mold can be lengthened, and the length of each edge frame of the telescopic opening mold can be flexibly adjusted by increasing or removing the connecting structure 200 including the connecting lengthener 220, and the adaptability of the telescopic opening mold to different size and shape openings is improved.

[0080] In the case of the sleeve connection relationship between the connecting lengthener 220 and the inner connecting column 210, the connecting lengthener 220 and the inner connecting column 210 are preferably fixedly connected with each other, for example, the connecting lengthener 220 and the inner connecting column 210 are welded.

[0081] Alternatively, in other embodiments of the utility model, the connecting lengthener 220 and the inner connecting column 210 can also be connected with each other through fastening connection, thermal assembly and other forms.

[0082] Alternatively, the connecting lengthener 220 and the inner connecting column 210 can also be formed integrally through an integral molding process, for example, through a metal forming process such as necking, so that the connecting structure 200 is contracted at both ends to form the end structure of the inner connecting column 210, and the middle part is kept with a larger cross-sectional area to form the structure of the connecting lengthener 220.

[0083] In some embodiments of the utility model, all the connecting structures 200 can only include the inner connecting column 210 and only consist of the external edge frame structure of the bending piece 110.

[0084] As an optional embodiment of the utility model, as shown in Figure 1 、 Figures 6-7 The corner member 100 further includes a support wing plate 120, the support wing plate 120 is fixed to the outer side of the bending piece 110 (in the utility model, the outer side refers to the direction from the inside of the telescopic opening mold frame to the outside, and correspondingly, the inner side refers to the direction from the outside of the telescopic opening mold to the inside), and extends along the length direction of the bending piece 110, as shown in Figure 9 、 Figure 10 At least part of the connecting structure 200 further includes a support flat plate 230, the support flat plate 230 is fixed to the outer side of the connecting lengthener 220, and extends along the length direction of the connecting structure 200.

[0085] In the embodiment of the utility model, the outer side of the corner member 100 has the support wing plate 120, the outer side of the connecting structure 200 has the support flat plate 230, and the support wing plate 120 and the support flat plate 230 jointly constitute the surface of the periphery of the telescopic opening mold for contacting with the cement material.

[0086] As an optional embodiment of the utility model, as shown in Figure 9 , Figure 10 The support flat plate 230 is integrally formed with the connecting lengthener 220.

[0087] In some embodiments of the utility model, the outer side surfaces of the bending piece 110 and the connecting lengthener 220 can be designed to have a width meeting the thickness requirement of the mold, for example, the bending piece 110 and the connecting lengthener 220 are both rectangular (or round rectangular) section pipes, and the outer side surfaces of the bending piece 110 and the connecting lengthener 220 have sufficient contact area, so that the support wing plate 120 and the support flat plate 230 do not need to be additionally arranged.

[0088] As an optional embodiment of the utility model, as shown in Figure 1 , Figure 2 The telescopic hole mold further comprises a plurality of covering pieces 400, the covering pieces 400 are fixedly arranged outside the connecting positions of the bending piece 110 and the adjacent bending piece 110 or the adjacent connecting lengthener 220, and cover the joints between the bending piece 110 and the adjacent bending piece 110 or the adjacent connecting lengthener 220.

[0089] In the embodiment of the utility model, the covering pieces 400 can shield the joints between the peripheral plate pieces of the telescopic hole mold, ensure the flatness of the hole edge, prevent the cement slurry from entering the inside of the telescopic hole mold and being adhered, and improve the smoothness of demolding of the telescopic hole mold.

[0090] Optionally, in the case that the telescopic hole mold has the support wing plate 120 and the support flat plate 230 on the outer side surface, as shown in Figure 1 , Figure 2 The covering pieces 400 are fixedly arranged outside the connecting positions of the support wing plate 120 and the adjacent support wing plate 120 or the adjacent support flat plate 230, and cover the joints between the support wing plate 120 and the adjacent support wing plate 120 or the adjacent support flat plate 230.

[0091] As an optional embodiment of the utility model, as shown in Figure 11 The covering piece 400 comprises a cover plate 410, a positioning block 420 arranged on one side surface of the cover plate 410 and a pair of guide bent plates 430 arranged on the two side edges of the cover plate 410, the cover plate 410 is located outside the support wing plate 120 and the adjacent support wing plate 120 or the adjacent support flat plate 230, the positions of the guide bent plates 430 correspond to the side edge positions of the support wing plate 120, one end of the guide bent plate 430 is connected with the cover plate 410, the other end of the guide bent plate 430 extends to the inside of the support wing plate 120, and the positioning block 420 is located between the support wing plate 120 and the adjacent support wing plate 120 or the adjacent support flat plate 230.

[0092] Optionally, when the cover 400 is used for the telescopic opening mold of the support wing plate 120 and the support flat plate 230, the guide bent plate 430 extends to the other side around the edge of the bent piece 110 or the connecting lengthener 220, so as to connect the cover plate 410 to the outside of the pipe piece by embracing the bent piece 110 or the connecting lengthener 220.

[0093] In the embodiment of the utility model, the cover 400 includes the cover plate 410, the positioning block 420 and the guide bent plate 430 at both ends of the cover plate 410, the guide bent plate 430 extends to the other side around the edge of the corresponding plate piece, so as to connect the cover plate 410 to the outside of the plate piece by embracing the corresponding plate piece, and the positioning block 420 is accommodated in the gap between the adjacent plate pieces, so as to fix the position of the cover 400 along the length direction of the frame, and ensure the stability of the position of the cover 400.

[0094] As an optional embodiment of the utility model, as shown in Figure 1 , Figure 2 , Figures 4-6 , the telescopic opening mold further includes at least one sealing strip 500, the shape of the sealing strip 500 corresponds to the connection pattern shape of the plurality of bent pieces 110 and the plurality of connecting lengtheners 220, the plurality of bent pieces 110 and the plurality of connecting lengtheners 220 are provided with the sealing strip 500 on at least one side along the opening direction of the telescopic opening mold, and the sealing strip 500 is fixedly connected with the corresponding side of the plurality of bent pieces 110 and the plurality of connecting lengtheners 220.

[0095] In the embodiment of the utility model, the sealing strip 500 can further fix the relative position between the plate pieces constituting the frame, and play a role of limiting the cement material, and the sealing strip 500 forms a very good closed space between the telescopic opening mold and the concrete wall side or the floor bottom mold, improves the sealing performance of the mold and the forming quality of the prefabricated component.

[0096] As an optional embodiment of the utility model, as shown in Figure 1 , Figure 2 , Figures 4-6 , one side of the sealing strip 500 has an annular mounting groove, and one side edge of the plurality of support wing plates 120 and the plurality of support flat plates 230 is accommodated in the annular mounting groove.

[0097] As an optional embodiment of the utility model, as shown in Figure 2 , the sealing strip 500 is arranged in pairs on both sides of the telescopic opening mold, and both side edges of the plurality of support wing plates 120 and the plurality of support flat plates 230 are respectively accommodated in the annular mounting grooves of the sealing strips 500 on both sides.

[0098] Optionally, when the telescopic opening mold adopts the design of the non-supporting wing plate 120 or the supporting flat plate 230, the sealing strip is a sheet and is attached to at least one side of the plurality of bending pieces and the plurality of connecting extension pieces along the opening direction of the telescopic opening mold, that is, the sealing strip 500 is arranged at the joint surface between the telescopic opening mold and the formwork and is arranged close to the concrete forming surface, and serves as an elastic sheet spacer on the mold surface.

[0099] As an optional embodiment of the utility model, as shown in Figures 1-6 the telescopic opening mold further comprises a plurality of adjusting assemblies 300, and the corner component 100 further comprises first connecting seats 130 arranged on the two end sides of the bending piece 110; the two adjusting ends of the adjusting assembly 300 are connected with the adjacent first connecting seats 130 respectively (that is, as shown in the top and bottom cases in Figure 1 ), and the distance between the two adjusting ends of the adjusting assembly 300 is adjustable, so as to adjust the length of the connecting structure 200 entering the corresponding bending piece 110.

[0100] As an optional embodiment of the utility model, as shown in Figures 1-6 the first connecting seat 130 is located on the inner side surface of the bending piece 110.

[0101] As an optional embodiment of the utility model, as shown in Figures 1-6 the telescopic opening mold further comprises a plurality of adjusting assemblies 300, and the corner component 100 further comprises first connecting seats 130 arranged on the two end sides of the bending piece 110; at least part of the connecting structure 200 further comprises second connecting seats 240 arranged on the two end sides of the connecting extension piece 220; the two adjusting ends of the adjusting assembly 300 are connected with the first connecting seat 130 and the adjacent first connecting seat 130 (that is, as shown in the top and bottom cases in Figure 1 ) or the adjacent second connecting seat 240 (that is, as shown in the left and right cases in Figure 1 ) respectively, and the distance between the two adjusting ends of the adjusting assembly 300 is adjustable, so as to adjust the length of the connecting structure 200 entering the corresponding bending piece 110.

[0102] In the embodiment of the utility model, the adjusting assembly 300 is connected between the connecting seats of the adjacent components, so that the structural strength of the telescopic opening mold in the use state can be further improved, the pouring effect is improved, and the distance between the two adjusting ends of the adjusting assembly 300 is telescopically adjustable, so that the length of the connecting structure 200 entering the corresponding bending piece 110 can be changed by adjusting the adjusting assembly 300, the length of each side of the mold is changed, and quick telescopic demolding is realized.

[0103] As an optional embodiment of the utility model, the second connecting seat 240 is located on the inner side surface of the connecting extension piece 220.

[0104] As an optional embodiment of the utility model, as shown in Figure 4 、 Figure 5 , the adjusting assembly 300 includes a threaded connecting piece 310 and a threaded matching piece 320, the threaded connecting piece 310 is fixedly connected with one of the adjacent connecting seats and forms one adjusting end of the adjusting assembly 300, the threaded matching piece 320 is fixedly connected with the other of the adjacent connecting seats and forms the other adjusting end of the adjusting assembly 300, and the threaded matching piece 320 is movably arranged on the threaded connecting piece 310.

[0105] The utility model embodiment fixes the adjacent connecting seats together through the threaded connecting piece 310 and the threaded matching piece 320, when it is needed to increase the size of the telescopic hole mold to realize mold fixing or to decrease the size of the telescopic hole mold to realize demolding, the overall length of the corresponding side length can be changed by adjusting the position of the threaded matching piece 320 on the threaded connecting piece 310, and then the adjusting assembly 300 for fixing the connecting seat is reused as the adjusting component for controlling the overall contraction and expansion of the telescopic hole mold, the operation steps of the telescopic hole mold are simplified, the hole pouring efficiency is further improved, and the pouring operation cost is reduced.

[0106] As an optional embodiment of the utility model, as shown in Figure 7 、 Figure 9 、 Figure 10 , the first connecting seat 130 and the second connecting seat 240 are both formed with connecting holes c, as shown in Figure 4 、 Figure 5 , the threaded connecting piece 310 is a threaded stud, the adjusting assembly 300 further includes a fixing nut 311, the threaded matching piece 320 includes a first fastening nut 321 and a second fastening nut 322, the threaded connecting piece 310 is fixed on one side connecting seat through the fixing nut 311 by passing through the connecting holes c of the adjacent two connecting seats, the first fastening nut 321 and the second fastening nut 322 are both arranged on the threaded connecting piece 310 and are fixed on the two sides of the other connecting seat (i.e. the first connecting seat 130 or the second connecting seat 240) respectively.

[0107] When it is needed to increase the size of the telescopic hole mold, the second fastening nut 322 can be loosened first to leave a movable allowance, then the first fastening nut 321 is rotated to move away from the enlarged part of the threaded connecting piece 310, the two connecting seats are driven to move away from each other, the end of the connecting structure 200 is pulled out of the bending piece 110, the size of the telescopic hole mold is elongated to the appropriate position, and then the second fastening nut 322 is tightened to complete the adjusting operation;

[0108] After use, when it is necessary to remove the telescopic opening mold from the opening, first loosen the first fastening nut 321 to allow for some movement, then rotate the second fastening nut 322 to move it toward the enlarged part of the threaded connector 310, which will drive the two connecting seats to move closer to each other, thereby driving the end of the connecting structure 200 to insert more into the bending part 110, so that the size of the telescopic opening mold is shortened to allow for easy demolding, and then the telescopic opening mold can be removed.

[0109] In this embodiment of the utility model, the adjusting component 300 used to fix the first connecting seat 130 and the second connecting seat 240 is reused as an adjusting component to control the overall shrinkage and expansion of the telescopic opening mold, which simplifies the operation steps of the telescopic opening mold, further improves the opening pouring efficiency, and reduces the pouring operation cost.

[0110] As an optional embodiment of this utility model, such as Figure 7 As shown, the first connecting seat 130 includes a first connecting plate 131 and a first reinforcing plate 132. The first connecting plate 131 extends along the cross-sectional direction of the bent member 110. The connecting hole c of the first connecting seat 130 passes through the first connecting plate 131 along the length direction of the bent member 110. One end of the first reinforcing plate 132 is connected to the first connecting plate 131, and the other end of the first reinforcing plate 132 extends along the length direction of the bent member 110.

[0111] like Figure 9 , Figure 10 As shown, the second connecting seat 240 includes a second connecting plate 241 and a second reinforcing plate 242. The second connecting plate 241 extends along the cross-sectional direction of the connecting extension member 220. The connecting hole c of the second connecting seat 240 passes through the second connecting plate 241 along the length direction of the connecting extension member 220. One end of the second reinforcing plate 242 is connected to the second connecting plate 241, and the other end of the second reinforcing plate 242 extends along the length direction of the connecting extension member 220.

[0112] As another optional embodiment of this utility model, such as Figure 13 , Figure 14 As shown, the adjustment assembly 300 includes at least one power cylinder 330. The cylinder body of the power cylinder 330 is fixedly connected to one of the adjacent connecting seats and forms an adjustment end of the adjustment assembly 300. The push rod of the power cylinder 330 is fixedly connected to the other of the adjacent connecting seats and forms another adjustment end of the adjustment assembly 300. The power cylinder 330 is a pneumatic cylinder, a hydraulic cylinder (e.g., an oil cylinder) or an electric cylinder.

[0113] When it is required to increase or decrease the size of the telescopic hole mold, the power cylinder 330 can be controlled to be elongated or shortened, so as to drive the two connecting seats to be away from or close to each other, and then the size of the telescopic hole mold is elongated or shortened, and the working efficiency of fixing and removing the telescopic hole mold is improved.

[0114] Optionally, as shown in Figure 14 , the power cylinder 330 of the adjusting assembly 300 can be a multi-axis power cylinder, and the multiple push rods of the multi-axis power cylinder can be elongated or shortened at the same time to drive the corresponding side length of the telescopic hole mold to be stretched or shortened.

[0115] Alternatively, as another optional embodiment of the utility model, as shown in Figure 15 , Figure 16 , the adjusting assembly 300 comprises a pull rod 341, a hinged part 342 and a hinged connecting rod 343, the hinged part 342 is hingedly connected with one of the shaft holes of the adjacent connecting seats, the first end of the hinged connecting rod 343 is hingedly connected with one of the shaft holes of the adjacent connecting seats, the second end of the hinged connecting rod 343 is hingedly connected with the hinged part 342, and the pull rod 341 is fixedly connected with the hinged part 342. The pull rod 341 can drive the hinged part 342 to rotate to pull the adjacent connecting seats to be close to each other through the hinged connecting rod 343.

[0116] When it is required to decrease the size of the telescopic hole mold, the pull rod 341 can be pulled tight, so that the hinged connecting rod 343 is pulled close to the hinged part 342, that is, from the state shown in Figure 15 to the state shown in Figure 16 , and then the two connecting seats are close to each other, the end of the connecting structure 200 is inserted into the bending piece 110 more, and the size of the telescopic hole mold is shortened to be easily demoulded;

[0117] When it is required to increase the size of the telescopic hole mold, the pull rod 341 can be loosened, so that the hinged connecting rod 343 is released to a position away from the hinged part 342, that is, from the state shown in Figure 16 to the state shown in Figure 15 , and then the two connecting seats are away from each other, the end of the connecting structure 200 is out of the bending piece 110 by a certain distance, and then the size of the telescopic hole mold is elongated.

[0118] As an optional embodiment of the utility model, as shown in Figure 7 , a first mounting hole a is formed on the bending piece 110, and the first mounting hole a penetrates the side wall of the bending piece 110 along the cross-sectional direction of the bending piece 110, as shown in Figure 9 , Figure 10As shown in the figure, the connecting structure 200 is formed with a second mounting hole b, the second mounting hole b penetrates along the cross-sectional direction of the connecting structure 200, and at least one of the first mounting hole a and the second mounting hole b extends along the length direction of the corresponding structure as a strip-shaped hole;

[0119] As shown in the figure, Figures 1-6 The telescopic opening mold further comprises a plurality of mounting fasteners 600, which penetrate the first mounting hole a and the second mounting hole b and detachably fix and connect the corner member 100 and the connecting structure 200.

[0120] In the embodiment of the utility model, the bending piece 110 and the connecting structure 200 are further fixed and connected by penetrating the mounting fastener 600, which can further improve the stability of the fixed connection between the bending piece 110 and the connecting structure 200, and further ensure the structural strength of the telescopic opening mold. Moreover, at least one of the first mounting hole a of the bending piece 110 and the second mounting hole b of the connecting structure 200 is a strip-shaped hole, so that when the size of the telescopic opening mold needs to be adjusted, the mounting fastener 600 can be loosened first, so that the mounting fastener 600 can slide along the strip-shaped hole, and then the adjustment operation can be started, and after the adjustment is completed, the mounting fastener 600 can be tightened again to ensure the overall structural strength.

[0121] As an optional embodiment of the utility model, as shown in the figure, Figures 1-6 The mounting fastener 600 is a bolt.

[0122] As an optional embodiment of the utility model, as shown in the figure, Figures 1-6 The first mounting hole a extends along the width direction of the support wing plate 120.

[0123] As an optional embodiment of the utility model, as shown in the figure, Figure 9 , Figure 10 The cross section of the second mounting hole b extends along the length direction of the connecting structure 200, that is, the second mounting hole b is a strip-shaped hole.

[0124] As an optional embodiment of the utility model, as shown in the figure, Figure 6 , Figure 7 The bending piece 110 is formed with a reinforcing boss 118 along the two sides of the width direction of the support wing plate 120, and the first mounting hole a penetrates the reinforcing boss 118, that is, the bending piece 110 is thickened at the first mounting hole a to improve the strength of the connection position of the bending piece 110 and the connecting structure 200.

[0125] Alternatively, as another optional embodiment of the utility model, when the telescopic hole mold adopts the no-supporting wing plate 120 or no-supporting flat plate 230 mold structure, the first mounting hole a can also be penetrated along the direction from the inner side to the outer side, that is, in the case that the connecting structure 200 and the bending piece 110 are both flat rectangular sections with larger width and smaller thickness along the inner-outer side connecting direction, the mounting direction of the mounting fastener 600 is perpendicular to the inner side surface of the connecting structure 200 and the bending piece 110.

[0126] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, and those skilled in the art should understand that the utility model includes but is not limited to the content described in the drawings and the above specific embodiment. Any modification not deviating from the function and structural principle of the utility model will be included in the scope of claims.

Claims

1. A telescoping portal mold characterized by, The stretchable hole mold comprises a plurality of corner members (100) and a plurality of connecting structures (200), the corner member (100) comprises a bending piece (110), the two ends of the bending piece (110) are provided with sockets, and the two ends have a preset mold angle between the directions thereof, the connecting structure (200) is connected between the ends of the bending pieces (110) of different corner members (100) to connect the bending pieces (110) end to end, the two ends of the connecting structure (200) along the length direction thereof are respectively inserted into the sockets of the corresponding bending pieces (110), and the length of the connecting structure (200) entering the corresponding bending piece (110) is adjustable.

2. The telescoping portal mold of claim 1, wherein, The connecting structure (200) comprises an inner connecting column (210), the cross-sectional shape of the inner connecting column (210) corresponds to the cross-sectional shape of the bending piece (110), and the two ends of the inner connecting column (210) are respectively accommodated in the corresponding bending piece (110).

3. The telescoping portal mold of claim 2, wherein, At least part of the connecting structure (200) further comprises a connecting extension piece (220), the connecting extension piece (220) is sleeved on the inner connecting column (210) or is formed in one piece with the inner connecting column (210), and is located between adjacent bending pieces (110).

4. The telescoping portal mold of claim 3, wherein, The corner member (100) further comprises a support wing plate (120), the support wing plate (120) is fixed to the outer side of the bending piece (110) and extends along the length direction of the bending piece (110), and at least part of the connecting structure (200) further comprises a support flat plate (230), the support flat plate (230) is fixed to the outer side of the connecting extension piece (220) and extends along the length direction of the connecting structure (200).

5. A telescoping portal mold according to claim 3 or 4, characterized in that, The stretchable hole mold further comprises a plurality of covering pieces (400), the covering pieces (400) are fixedly arranged outside the connecting positions of the bending piece (110) and the adjacent bending piece (110) or the adjacent connecting extension piece (220) and cover the joints between the bending piece (110) and the adjacent bending piece (110) or the adjacent connecting extension piece (220).

6. A telescoping portal mold according to claim 3 or 4, wherein, The stretchable hole mold further comprises at least one sealing strip (500), the shape of the sealing strip (500) corresponds to the connection pattern shape of the plurality of bending pieces (110) and the plurality of connecting extension pieces (220), the plurality of bending pieces (110) and the plurality of connecting extension pieces (220) are provided with the sealing strip (500) on at least one side along the opening direction of the stretchable hole mold, and the sealing strip (500) is fixedly connected to the corresponding side of the plurality of bending pieces (110) and the plurality of connecting extension pieces (220).

7. The telescoping portal mold of claim 1 or 2, wherein, The stretchable hole mold further comprises a plurality of adjusting assemblies (300), the corner member (100) further comprises a first connecting seat (130) arranged on the side surface of the two ends of the bending piece (110), the two adjusting ends of the adjusting assembly (300) are respectively connected to the adjacent first connecting seats (130), and the distance between the two adjusting ends of the adjusting assembly (300) is adjustable.

8. The telescoping portal mold of any one of claims 3 or 4, wherein, The telescopic hole mold further comprises a plurality of adjusting assemblies (300), the corner component (100) further comprises a first connecting seat (130) arranged on the side surface of both ends of the bending piece (110), at least part of the connecting structure (200) further comprises a second connecting seat (240) arranged on the side surface of both ends of the connecting extension piece (220), the two adjusting ends of the adjusting assembly (300) are connected with the first connecting seat (130) and the adjacent first connecting seat (130) or the adjacent second connecting seat (240) respectively, and the distance between the two adjusting ends of the adjusting assembly (300) is adjustable.

9. The telescoping portal mold of claim 8, wherein, The adjusting assembly (300) comprises a threaded connecting piece (310) and a threaded matching piece (320), the threaded connecting piece (310) is fixedly connected with one of the adjacent connecting seats and forms one adjusting end of the adjusting assembly (300), the threaded matching piece (320) is fixedly connected with the other of the adjacent connecting seats and forms the other adjusting end of the adjusting assembly (300), and the threaded matching piece (320) is movably arranged on the threaded connecting piece (310); Alternatively, the adjusting assembly (300) comprises at least one power cylinder (330), the cylinder body of the power cylinder (330) is fixedly connected with one of the adjacent connecting seats and forms one adjusting end of the adjusting assembly (300), the push rod of the power cylinder (330) is fixedly connected with the other of the adjacent connecting seats and forms the other adjusting end of the adjusting assembly (300), and the power cylinder (330) is a gas cylinder, a hydraulic cylinder or an electric cylinder; Alternatively, the adjusting assembly (300) comprises a pull rod (341), a hinged part (342) and a hinged connecting rod (343), the hinged part (342) is hingedly connected with one of the adjacent connecting seats through an axial hole, the first end of the hinged connecting rod (343) is hingedly connected with one of the adjacent connecting seats through an axial hole, the second end of the hinged connecting rod (343) is hingedly connected with the hinged part (342), the pull rod (341) is fixedly connected with the hinged part (342), and the pull rod (341) can drive the hinged part (342) to rotate to pull the adjacent connecting seats close to each other through the hinged connecting rod (343).

10. The telescoping portal mold of any one of claims 1 to 4, wherein, The bending piece (110) is formed with a first mounting hole (a) penetrating the side wall of the bending piece (110) along the cross-sectional direction of the bending piece (110), the connecting structure (200) is formed with a second mounting hole (b) penetrating along the cross-sectional direction of the connecting structure (200), and at least one of the first mounting hole (a) and the second mounting hole (b) extends as a strip-shaped hole along the length direction of the corresponding structure; The telescopic hole mold further comprises a plurality of mounting fasteners (600), the mounting fasteners (600) pass through the first mounting hole (a) and the second mounting hole (b) and detachably fixedly connect the corner component (100) and the connecting structure (200).

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