Concrete cavity forming mold and use method thereof

Abstract

The present invention discloses a concrete cavity forming mold, comprising a telescopic skeleton, an elastic wrapping layer and a plurality of support plates, wherein the plurality of support plates are arranged around the outer side of the telescopic skeleton, the telescopic skeleton is connected to the support plates, and the elastic wrapping layer is arranged on the outer side of the plurality of support plates. The method of using the method comprises the steps of S1, mold installation: the telescopic skeleton drives the support plates to contract, the elastic wrapping layer is installed on the outer side of each support plate, and then the telescopic skeleton drives the support plates to stretch until the outer contour size of the elastic wrapping layer is consistent with the concrete cavity to be formed, and finally the mold is installed into the cavity position; S2, pouring concrete; S3, demoulding: when demoulding is possible, the telescopic skeleton drives the support plates to contract, the elastic wrapping layer contracts and disengages from the concrete cavity, and then the mold is taken out. The present invention has the advantages of being able to adapt to concrete cavities of various cross-sectional shapes without changing the cavity structure, and being stable and reliable for long-term use.

Description

Technical Field

[0001] The invention relates to a concrete mould and a use method thereof, and in particular to a concrete cavity forming mould and a use method thereof. Background Art

[0002] At present, there are three main forms of common concrete cavity forming molds: one is an integral cavity mold (short for cavity forming mold, the same below), with a slope set along the depth direction of the cavity, and relying on the slope to pull out the mold. Although this method is relatively simple to design and make the cavity mold, it has disadvantages such as changing the shape of the cavity structure, large demoulding pull-out force and difficult to ensure the demoulding quality, and has great limitations in use; the second is to make multiple loose assembly cavity molds. This method has a large number of cavity molds, a large workload of assembly and dismantling, and is difficult to design, install and dismantle when the cavity cross-sectional area is small and the depth is large, and it is difficult to apply; the third is to make multiple articulated cavity molds. Although this method has a relatively simple mold closing process, the cavity mold structure is complex, it is easy to form misalignment between panels, the panel joints are prone to slurry overflow and leakage, and it is difficult to clean the gap between panels. In addition, it is also difficult to design, install and dismantle when the cavity cross-sectional area is small and the depth is large. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a concrete cavity forming mold which can adapt to various cross-sectional shapes without changing the cavity structure and can be used stably and reliably for a long time.

[0004] The present invention further provides a method for using the concrete cavity forming mold.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A concrete cavity forming mold comprises a telescopic frame, an elastic wrapping layer and a plurality of support plates, wherein the plurality of support plates are arranged around the outer side of the telescopic frame, the telescopic frame is connected to the support plates, and the elastic wrapping layer is arranged on the outer sides of the plurality of support plates.

[0007] As a further improvement of the above technical solution: the telescopic skeleton includes a support, and an adjusting mechanism for adjusting the distance between the support and the support plate, the adjusting mechanism includes an adjusting screw, a nut seat and a support rod, the adjusting screw is arranged on the support, the nut seat is arranged on the adjusting screw, one end of the support rod is hinged to the support plate, and the other end is hinged to the support, the nut seat is provided with a first toggle member for axially toggling the support plate, the support plate is provided with a second toggle member cooperating with the first toggle member, and the second toggle member can be disengaged from the first toggle member along the radial direction of the nut seat.

[0008] As a further improvement of the above technical solution: the first toggle member is provided with a slot arranged radially along the nut seat, and the second toggle member is a paddle and is positioned in the slot; or the second toggle member is provided with a slot arranged radially along the nut seat, and the first toggle member is a paddle and is positioned in the slot.

[0009] As a further improvement of the above technical solution: the support is a hollow structure, the adjusting screw is arranged on the inner side of the support, and the support is provided with a guide groove for the first shifting member to move axially.

[0010] As a further improvement of the above technical solution: the telescopic frame includes a support, and an adjusting mechanism for adjusting the distance between the support and the support plate, the adjusting mechanism includes an adjusting screw, a nut seat and a support rod, the adjusting screw is arranged on the support and the spiral directions of the two ends are opposite, the nut seats are provided at both ends of the adjusting screw, the support rod is hinged on the nut seat, and the other end of the support rod is hinged to the support plate.

[0011] As a further improvement of the above technical solution: the support is provided with a limiting member arranged along the radial direction of the adjusting screw.

[0012] As a further improvement of the above technical solution: the telescopic skeleton includes a support, and an adjusting mechanism for adjusting the distance between the support and the support plate, the adjusting mechanism includes a telescopic driving member and a support rod, one end of the telescopic driving member is hinged to the support, and the other end is hinged to the support plate, one end of the support rod is hinged to the support plate, and the other end is hinged to the support.

[0013] As a further improvement of the above technical solution: a plurality of the support plates are symmetrically arranged in pairs on the outside of the telescopic frame.

[0014] As a further improvement of the above technical solution: the elastic wrapping layer is a rubber layer, a silicone layer or a steel plate layer.

[0015] A method for using the above-mentioned concrete cavity forming mold comprises the following steps:

[0016] S1. Moulding: The telescopic frame drives the support plates to contract, and the elastic wrapping layer is installed on the outside of each support plate. Then the telescopic frame drives the support plates to extend until the outer contour size of the elastic wrapping layer is consistent with the concrete cavity to be formed, and finally the mould is installed into the cavity position;

[0017] S2, pouring concrete;

[0018] S3. Demoulding: When the mould can be demoulded, the telescopic frame drives the supporting plate to shrink, the elastic wrapping layer shrinks and separates from the concrete cavity, and then the mould is taken out.

[0019] Compared with the prior art, the advantages of the present invention are: the concrete cavity forming mold disclosed in the present invention has multiple support plates arranged on the outside of the telescopic frame, an elastic wrapping layer is provided on the outside of the support plate, and the support plate is connected to the telescopic frame, so that the overall outer contour size of the mold can be changed by the extension and contraction of the telescopic frame, and the elastic wrapping layer can shrink and stretch accordingly, which makes molding and demolding convenient, with small workload and high efficiency; a cavity without slope can be formed without changing the cavity structure; by adjusting the specifications of the support plate, it can be adapted to concrete cavities of various cross-sectional shapes; the external elastic wrapping layer protects the internal skeleton structure of the mold well, prevents concrete dust from entering and affecting the internal skeleton structure, and is stable and reliable for long-term use.

[0020] The method for using the concrete cavity forming mold disclosed in the present invention is as follows: when filling the mold, the outer contour size of the internal telescopic skeleton structure is first reduced, and then the outer elastic wrapping layer is put on, and then the overall outer contour size of the mold is stretched to be consistent with the concrete cavity to be formed; when demolding, the overall outer contour size of the mold is reduced to separate the elastic wrapping layer from the concrete cavity, the workload of filling and demolding the mold is small, and the operation is convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the concrete cavity forming mold of the present invention when being used to form a circular cavity.

[0022] Figure 2 It is a structural schematic diagram of the concrete cavity forming mold of the present invention when being used to form a square cavity.

[0023] Figure 3 It is a structural schematic diagram of the concrete cavity forming mold of the present invention when being used to form a multi-deformation cavity.

[0024] Figure 4 It is a structural schematic diagram of a first embodiment of a concrete cavity forming mold of the present invention.

[0025] Figure 5 It is a structural schematic diagram of a second embodiment of a concrete cavity forming mold of the present invention.

[0026] Figure 6 It is a structural schematic diagram of the third embodiment of the concrete cavity forming mold of the present invention.

[0027] The numbers in the figure represent: 1. support; 11. guide groove; 12. limit member; 2. elastic wrapping layer; 3. support plate; 31. second toggle member; 4. telescopic frame; 41. adjusting screw rod; 42. nut seat; 421. first toggle member; 43. support rod; 44. telescopic driving member. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Concrete cavity forming mold embodiment 1

[0030] Figures 1 to 4 An embodiment of the concrete cavity forming mold of the present invention is shown. The concrete cavity forming mold of this embodiment includes a telescopic frame 4, an elastic wrapping layer 2 and a plurality of support plates 3. The plurality of support plates 3 are arranged around the outer side of the telescopic frame 4. The telescopic frame 4 is connected to the support plates 3, and the elastic wrapping layer 2 is arranged on the outer side of the plurality of support plates 3. The elastic wrapping layer 2 can be, for example, a rubber layer, a silicone layer or a steel plate layer; two of the plurality of support plates 3 form a group, and the two support plates 3 in the same group are symmetrically arranged on both sides of the telescopic frame 4, so that the overall structure of the mold is more compact and the force of the telescopic frame 4 is more reasonable.

[0031] The concrete cavity forming mold has multiple support plates 3 arranged outside the telescopic frame 4, and an elastic wrapping layer 2 is arranged outside the support plates 3. The support plates 3 are connected to the telescopic frame 4, so that the outer contour size of the entire mold can be changed by the telescopic frame 4, and the elastic wrapping layer 2 can be contracted and stretched accordingly (the contracted state is shown in FIG. Figures 1 to 4 Part b, the extended state see Figures 1 to 4 Part a), easy mold loading and demoulding, small workload and high efficiency; a cavity without slope can be formed without changing the cavity structure; by adjusting the specifications and outer shape of the support plate 3, it can be adapted to concrete cavities of various cross-sectional shapes; the external elastic wrapping layer 2 protects the internal skeleton structure of the mold well, prevents concrete dust from entering and affecting the internal skeleton structure, and is stable and reliable for long-term use.

[0032] Furthermore, in the present embodiment, the telescopic skeleton 4 includes a support 1 and an adjusting structure for adjusting the distance between the support plate and the support 1, the adjusting mechanism includes an adjusting screw 41, a nut seat 42 and a support rod 43, the adjusting screw 41 is arranged on the support 1, the nut seat 42 is arranged on the adjusting screw 41, one end of the support rod 43 is hinged to the support plate 3, and the other end is hinged to the support 1, the nut seat 42 is provided with a first toggle member 421 for axially shifting the support plate 3, the support plate 3 is provided with a second toggle member 31 cooperating with the first toggle member 421, the second toggle member 31 can be disengaged from the first toggle member 421 along the radial direction of the nut seat 42, that is, the first toggle member 421 can drive the second toggle member 31 to move axially without restricting the radial movement of the second toggle member 31. During adjustment, the adjusting screw 41 is rotated, and the nut seat 42 moves axially along the adjusting screw 41. The first toggle member 421 drives the support plate 3 to move through the second toggle member 31. Under the action of the support rod 43, the support plate 3 moves axially and radially at the same time, so the distance between the support 1 changes, thereby changing the outer contour size of the elastic wrapping layer 2. The structure is simple, reliable, and easy to adjust. In this embodiment, two support rods 43 are correspondingly arranged for each support plate 3. Of course, in other embodiments, as the depth of the concrete cavity changes, the number of support rods 43 can also be appropriately adjusted.

[0033] As a preferred technical solution, in this embodiment, the first toggle member 421 is provided with a slot arranged radially along the nut seat 42, and the second toggle member 31 is a paddle and is positioned in the slot. The structure is simple and reliable. The first toggle member 421 can easily drive the second toggle member 31 to move axially, and the second toggle member 31 can also easily move radially and separate from the first toggle member 421. The first toggle member 421 can provide radial limiting for the second toggle member 31, the support plate 3, etc., which is safe and reliable. Of course, in other embodiments, it can also be replaced, that is: the second toggle member 31 is provided with a slot arranged radially along the nut seat 42, and the first toggle member 421 is a paddle and is positioned in the slot, which can also achieve the above purpose.

[0034] Furthermore, in this embodiment, the support 1 is a hollow structure, the adjusting screw 41 is arranged on the inner side of the support 1, and a guide groove 11 is provided on the support 1 for the first toggle member 421 to move axially. This arrangement makes the overall structure of the mold compact and occupies less space. The support 1 can also provide a certain protection for the internal adjusting screw 41, nut seat 42, etc. The guide groove 11 of the support 1 ensures that each first toggle member 421 moves more steadily and smoothly along the axial direction.

[0035] Concrete cavity forming mold embodiment 2

[0036] like Figure 5As shown, the concrete cavity forming mold of this embodiment is basically the same as that of the first embodiment, except that: in this embodiment, the adjustment mechanism includes an adjustment screw 41, a nut seat 42 and a support rod 43. The adjustment screw 41 is arranged on the support 1 and the spiral directions of the two ends are opposite. Both ends of the adjustment screw 41 are provided with nut seats 42, and the support rod 43 is hinged on the nut seat 42. The other end of the support rod 43 is hinged to the support plate 3. When adjusting, the adjustment screw 41 is rotated. Since the spiral directions of the two ends are opposite, the nut seats 42 at the two ends are axially close to or away from each other, and the support rod 43 moves with the nut seat 42. At the same time, the support plate 3 moves radially, close to or away from the support 1. The structure is simple and reliable, and the adjustment is convenient and the stability is good.

[0037] Furthermore, in this embodiment, the support 1 is provided with a limiting member 12 arranged radially along the adjusting screw rod 41. The limiting member 12 can provide radial limiting for the second shifting member 31, the supporting plate 3, etc., which is safe and reliable.

[0038] Concrete cavity forming mold embodiment 3

[0039] like Figure 6 As shown, the concrete cavity forming mold of this embodiment is basically the same as that of the first embodiment, except that: in this embodiment, the adjustment mechanism includes a telescopic drive member 44 and a support rod 43, one end of the telescopic drive member 44 is hinged to the support 1, and the other end is hinged to the support plate 3, and one end of the support rod 43 is hinged to the support plate 3, and the other end is hinged to the support 1. Among them, the telescopic drive member 44 can be, for example, various telescopic components such as a hydraulic cylinder and a threaded telescopic rod. During adjustment, the telescopic drive member 44 extends or contracts, and under the restriction of the support rod 43, the support plate 3 moves closer to or away from the support 1. Compared with the first and second embodiments, the number of parts is less, and the structure is simpler and more reliable.

[0040] Example 1 of method for using a concrete cavity forming mold

[0041] The method for using the concrete cavity forming mold of this embodiment includes the following steps:

[0042] S1. Moulding: The telescopic skeleton 4 drives the support plate 3 to shrink, and the elastic wrapping layer 2 is installed on the outside of each support plate 3. Then the telescopic skeleton 4 drives the support plate 3 to stretch until the outer contour size of the elastic wrapping layer 2 is consistent with the concrete cavity to be formed, and finally the mould is installed into the cavity position (refer to the contracted state). Figures 1 to 6 Part b, the extended state see Figures 1 to 6 Part a of

[0043] S2, pouring concrete;

[0044] S3, demoulding: When demoulding is possible, the telescopic frame 4 drives the support plate 3 to shrink, the elastic wrapping layer 2 shrinks and separates from the concrete cavity, and then the mold is taken out.

[0045] The method for using the concrete cavity forming mold is as follows: when filling the mold, the outer contour size of the internal skeleton structure is first reduced, and then the outer elastic wrapping layer 2 is put on, and then the overall outer contour size of the mold is stretched to be consistent with the concrete cavity to be formed; when demolding, the overall outer contour size of the mold is reduced to separate the elastic wrapping layer 2 from the concrete cavity, the mold filling and demolding workload is small, and the operation is convenient and efficient.

[0046] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A concrete cavity forming mold, characterized in that: The telescopic frame (4) comprises a telescopic frame (4), an elastic wrapping layer (2) and a plurality of support plates (3), wherein the plurality of support plates (3) are arranged around the outer side of the telescopic frame (4), the telescopic frame (4) is connected to the support plates (3), and the elastic wrapping layer (2) is arranged on the outer sides of the plurality of support plates (3); the telescopic frame (4) comprises a support (1), and an adjustment mechanism for adjusting the distance between the support (1) and the support plates (3), wherein the adjustment mechanism comprises an adjustment screw (41), a nut seat (42) and a support rod (43), wherein the adjustment screw (41) is arranged on the support (1), and the nut seat (42) is arranged on the outer side of the plurality of support plates (3). The support rod (43) is arranged on the adjusting screw rod (41), one end of the support rod (43) is hinged to the support plate (3), and the other end is hinged to the support seat (1); the nut seat (42) is provided with a first toggle member (421) for axially toggling the support plate (3); the support plate (3) is provided with a second toggle member (31) cooperating with the first toggle member (421); the second toggle member (31) can be separated from the first toggle member (421) along the radial direction of the nut seat (42); a plurality of the support plates (3) are symmetrically arranged in pairs on the outer side of the telescopic frame (4); and the elastic wrapping layer (2) is a rubber layer, a silicone layer or a steel plate layer.

2. The concrete cavity forming mold according to claim 1, characterized in that: The first toggle member (421) is provided with a slot arranged radially along the nut seat (42), and the second toggle member (31) is a paddle and is positioned in the slot; or the second toggle member (31) is provided with a slot arranged radially along the nut seat (42), and the first toggle member (421) is a paddle and is positioned in the slot.

3. The concrete cavity forming mold according to claim 1, characterized in that: The support (1) is a hollow structure, the adjusting screw rod (41) is arranged on the inner side of the support (1), and the support (1) is provided with a guide groove (11) for the first shifting member (421) to move axially.

4. A method for using the concrete cavity forming mold according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1, mold installation: the telescopic frame (4) drives the support plate (3) to contract, and the elastic wrapping layer (2) is installed on the outside of each support plate (3), and then the telescopic frame (4) drives the support plate (3) to extend until the outer contour size of the elastic wrapping layer (2) is consistent with the concrete cavity to be formed, and finally the mold is installed into the cavity position; S2, pouring concrete; S3, demoulding: When demoulding is possible, the telescopic frame (4) drives the support plate (3) to shrink, and the elastic wrapping layer (2) shrinks and separates from the concrete cavity, and then the mold is taken out.

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