Open petal type split round hole template

Abstract

The utility model provides an open-petal type split round hole template which comprises a semicircular first half side template and a semicircular second half side template, each of the first half side template and the second half side template comprises two template petals, the side ends of the template petals are hinged, the template petals are connected through a hinge device, and the first half side template and the second half side template are spliced into a whole circle structure. A plurality of hinge sets are arranged on the inner side of the first half side formwork and the inner side of the second half side formwork in the length direction, push-pull pieces are further arranged on the inner side of the first half side formwork and the inner side of the second half side formwork respectively, each hinge set comprises two swing plates hinged to the push-pull pieces, one end of each swing plate is hinged to the inner wall of each formwork petal of the first half side formwork and the second half side formwork, and the other end of each swing plate is hinged to the inner wall of each formwork petal of the second half side formwork. The hinged position of the swing plate and the formwork petals is the end, away from the hinge device, of the formwork petals, the push-pull piece is pushed and pulled so that the formwork petals of the first half side formwork and the second half side formwork can swing around the hinge device, and the problem of pouring of large and medium reserved holes in ship lock construction is solved.

Description

Technical Field

[0001] The utility model relates to the field of concrete formwork, in particular to a split-flap circular hole formwork. Background Art

[0002] During ship lock construction, it's often necessary to reserve larger holes, such as for drainage channels, when pouring structural parts. Traditional large-hole formwork involves assembling multiple curved pieces one by one. This creates numerous joints, a significant amount of work, and makes it difficult to ensure strength. Concrete can easily leak out, and for medium-diameter holes, the confined interior space makes manual splicing on the inner side of the formwork difficult. Utility Model Content

[0003] The utility model provides a split-flap circular hole template, which solves the problem of pouring large and medium-sized reserved holes in ship lock construction.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a split-flap circular hole template, including a semicircular first half side template and a second half side template, the first half side template and the second half side template each include two template flaps hinged at the side ends and connected by a hinge device, the first half side template and the second half side template are assembled into a full circular structure, the inner sides of the first half side template and the second half side template are provided with multiple hinge groups along the length direction, the inner sides of the first half side template and the second half side template are also provided with push-pull members respectively, the hinge group includes two swinging plates hinged with the push-pull members, one end of each swinging plate is hinged to the inner wall of each template flap of the first half side template and the second half side template, the hinge position of the swinging plate and the template flap is the end of the template flap away from the hinge device, and the push-pull member is pushed and pulled to make the template flap of the first half side template and the second half side template swing around the hinge device.

[0005] In the preferred solution, magnetic plates are provided at both ends of the first half side template and the second half side template. The magnetic plate of the first half side template is in an inward eight-shaped shape, and the magnetic plate of the second half side template is in an outward eight-shaped shape. The magnetic plates of the first half side template and the second half side template attract each other.

[0006] In a preferred solution, a hinge hole is provided at the end of the swing plate, a fixing ear is provided on the inner side of the template flap, and a pin is provided on the fixing ear. The pin passes through the hinge hole, and the diameter of the hinge hole is larger than the diameter of the pin.

[0007] In a preferred solution, the push-pull member is provided with a plurality of through holes along the length direction, the hinge assembly includes a hinge shaft, the two swing plates are hinged via the hinge shaft, and the hinge shaft is inserted into the through holes.

[0008] In the preferred scheme, the inner side of the template flap is provided with a stop block, and the push-pull piece is further provided with a first double-headed screw and a second double-headed screw arranged at intervals, the first double-headed screw and the second double-headed screw are opposite in screw thread direction at both ends, two independent transition blocks are arranged between the first double-headed screw and the second double-headed screw, the transition blocks are threadedly connected to the first double-headed screw and the second double-headed screw at both ends respectively, and the middle part of each first double-headed screw is hingedly connected to each swing plate of the same hinge group.

[0009] The utility model discloses the beneficial effects are: adopt splicing formula structure, template flap, hinge group, push -and -pull piece can be prefabricated in factory in advance, and assemble into half side template, only need to combine two half side templates into whole circle structure on the spot, simple operation, low degree of difficulty, reduce the template quantity, compared to the one -by -one assembly of multiple templates, workload is less, and can make template inner shrink through push -and -pull piece remotely and reduce demolding difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0010] The utility model will be further described below in connection with the drawings and examples.

[0011] Figure 1 It is the end view of the utility model.

[0012] Figure 2 It is the internal side view of the utility model.

[0013] Figure 3 It is the push -and -pull piece schematic view of the utility model.

[0014] Figure 4 It is the abutment position close -up when template inner shrink.

[0015] Figure 5 It is the spacing adjustment structure schematic view.

[0016] In the drawing: first half side template 1;Second half side template 2;Template flap 3;Swing plate 4;Hinge hole 401;Stiffening rib 5;Hinge device 6;Fixed lug 7;Pin column 701;Limit cap 702;Push -and -pull piece 8;Through -going hole 801;Stand lug seat 802;Hinge group 9;Hinge shaft 901;Magnetic plate 10;Transition block 11;First double -headed screw 12;Knob part 1201;Second double -headed screw 13. DETAILED DESCRIPTION

[0017] As Figures 1-5The application discloses a split round hole formwork which comprises a first half formwork and a second half formwork, the first half formwork and the second half formwork are both provided with two side end hinged formwork leaves which are connected through a hinge device, the first half formwork and the second half formwork are combined into a whole round structure, the inner side of the first half formwork and the second half formwork is provided with a plurality of hinge groups in the length direction, and the inner side of the first half formwork and the second half formwork is also respectively provided with a push-pull piece, the hinge group comprises two swing plates which are hinged with the push-pull piece, one end of each swing plate is hinged with the inner wall of each formwork leaf of the first half formwork and the second half formwork, and the hinged position of the swing plate and the formwork leaf is the end of the formwork leaf which is far away from the hinge device.

[0018] The formwork leaf is provided with a reinforcing rib at every certain distance so as to prevent deformation caused by concrete extrusion force.

[0019] In the preferred scheme, the first half formwork and the second half formwork are both provided with magnetic plates at two ends, the magnetic plate of the first half formwork is in an inner eight-character shape, the magnetic plate of the second half formwork is in an outer eight-character shape, and the magnetic plate of the first half formwork and the magnetic plate of the second half formwork are attracted to each other.

[0020] The magnetic plate is beneficial to the combination of the first half formwork and the second half formwork and cannot be easily separated.

[0021] During construction, the push-pull piece is pushed to open the formwork leaves so that the first half formwork and the second half formwork are in a half round structure, then the first half formwork and the second half formwork are combined into a whole round structure and are placed at a construction position, and concrete is constructed outside the whole round structure. After solidification, the push-pull piece of the first half formwork is pulled first, the swing plate is rotated and pulls the inner side of the formwork leaf so as to be demoulded, then the first half formwork is taken out, the push-pull piece of the second half formwork is pulled so that the formwork leaf of the second half formwork is demoulded.

[0022] In the preferred scheme, the end of the swing plate is provided with a hinge hole, the inner side of the formwork leaf is provided with a fixing lug, the fixing lug is provided with a pin, the pin passes through the hinge hole, and the diameter of the hinge hole is greater than the diameter of the pin.

[0023] When the formwork leaf is combined by the swing plate, the angle changes, the fixing lug and the swing plate change from parallel to a certain angle, the diameter of the hinge hole is greater than the diameter of the pin, the cooperation between the hinge hole and the pin is loose, and the axis of the hinge hole is allowed to be at a certain angle relative to the pin.

[0024] The end of the pin is provided with a limiting cap so as to prevent the swing plate from being taken out.

[0025] In the preferred solution, the push-pull piece 8 is provided with a plurality of through holes 801 along the length direction, the hinge group 9 comprises a hinge shaft 901, the two swing plates 4 are hinged through the hinge shaft 901, and the hinge shaft 901 is inserted into the through hole 801.

[0026] Due to the low precision and easy deformation of the welding structure, when the swing plate 4 is opened to the limit, the two mold flaps 3 cannot form a semicircular shape due to errors, so that the first half side mold plate 1 and the second half side mold plate 2 are difficult to be spliced together with a close fit.

[0027] In the preferred solution, the swing plate 4 on the inner side of the mold flap 3 is provided with a stop block 14, the push-pull piece 8 is further provided with a first double-headed screw 12 and a second double-headed screw 13 arranged at intervals, the first double-headed screw 12 and the second double-headed screw 13 are oppositely threaded at both ends, two independent transition blocks 11 are arranged between the first double-headed screw 12 and the second double-headed screw 13, the transition blocks 11 are respectively threaded at both ends with the first double-headed screw 12 and the second double-headed screw 13, and the middle part of each first double-headed screw 12 is hinged with each swing plate 4 of the same hinge group 9. The first double-headed screw 12 and the second double-headed screw 13 are rotated to adjust the distance between the two transition blocks 11.

[0028] The push-pull piece 8 is provided with a plurality of stand ear seats 802, the stand ear seat 802 is provided with a through light hole, the first double-headed screw 12 and the second double-headed screw 13 are rotatably sleeved with the stand ear seat 802 at both ends and are provided with double-nut clamping and limiting the first double-headed screw 12 and the second double-headed screw 13.

[0029] The nut at the stand ear seat 802 is slightly loosened, the knob part 1201 at the center of the first double-headed screw 12 and the second double-headed screw 13 is rotated, due to the opposite threads at both ends, the two transition blocks 11 can be close to or away from each other, so as to adjust the distance between the two swing plates 4, adjust the angle when the first half side mold plate 1 and the second half side mold plate 2 are opened to the limit, and facilitate the adjustment of the first half side mold plate 1 and the second half side mold plate 2 into an accurate semicircular structure.

[0030] The above-mentioned embodiments are only preferred technical solutions of the present application, and should not be regarded as limiting the present application. The protection scope of the present application should be based on the technical solutions claimed in the claims, including the equivalent replacement solutions of the technical features claimed in the claims. That is, the equivalent replacement improvement within this range is also within the protection scope of the present application.

Claims

1. A split round hole template, characterized in that: The application relates to a half-circular first half-side mould plate (1) and a half-circular second half-side mould plate (2), the first half-side mould plate (1) and the second half-side mould plate (2) each comprising two side-end hinged mould plate petals (3) connected through hinge devices (6), the first half-side mould plate (1) and the second half-side mould plate (2) being spliced into a whole circular structure, the inner sides of the first half-side mould plate (1) and the second half-side mould plate (2) being provided with a plurality of hinge groups (9) in the length direction, the inner sides of the first half-side mould plate (1) and the second half-side mould plate (2) further being respectively provided with push-pull pieces (8), the hinge group (9) comprising two swing plates (4) hinged with the push-pull piece (8), one end of each swing plate (4) being hinged with the inner wall of each mould plate petal (3) of the first half-side mould plate (1) and the second half-side mould plate (2), the hinge position of the swing plate (4) and the mould plate petal (3) being the end of the mould plate petal (3) away from the hinge device (6), the push-pull piece (8) being pushed and pulled to make the mould plate petal (3) of the first half-side mould plate (1) and the second half-side mould plate (2) swing around the hinge device (6).

2. The split pattern of claim 1, wherein: The two ends of the first half-side mould plate (1) and the second half-side mould plate (2) are provided with magnetic plates (10), the magnetic plate (10) of the first half-side mould plate (1) is in an inner eight-character shape, the magnetic plate (10) of the second half-side mould plate (2) is in an outer eight-character shape, and the magnetic plate (10) of the first half-side mould plate (1) and the magnetic plate (10) of the second half-side mould plate (2) attract each other.

3. The split pattern of claim 1 wherein: The end of the swing plate (4) is provided with a hinge hole (401), the inner side of the mould plate petal (3) is provided with a fixed lug (7), the fixed lug (7) is provided with a pin (701), the pin (701) penetrates through the hinge hole (401), and the diameter of the hinge hole (401) is larger than the diameter of the pin (701).

4. The split pattern of claim 1 wherein: The push-pull piece (8) is provided with a plurality of through holes (801) in the length direction, the hinge group (9) comprises a hinge shaft (901), and the two swing plates (4) are hinged through the hinge shaft (901), the hinge shaft (901) being inserted into the through hole (801).

5. The split pattern of claim 1 wherein: The inner side of the mould plate petal (3) is provided with a stop block (14) on one side of the swing plate (4), the push-pull piece (8) is further provided with a first double-headed screw rod (12) and a second double-headed screw rod (13) arranged at intervals, the screw thread directions of the two ends of the first double-headed screw rod (12) and the second double-headed screw rod (13) are opposite, two independent transition blocks (11) are arranged between the first double-headed screw rod (12) and the second double-headed screw rod (13), the transition blocks (11) are threadedly sleeved with the first double-headed screw rod (12) and the second double-headed screw rod (13) at the two ends respectively, the middle part of each first double-headed screw rod (12) is hinged with each swing plate (4) of the same hinge group (9), and the first double-headed screw rod (12) and the second double-headed screw rod (13) are simultaneously rotated to adjust the distance between the two transition blocks (11). ​

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