A wall-penetrating concealed pipe tension screw assembly capable of adjusting the size in a cyclic manner

Abstract

The invention discloses a through-wall concealed pipe tension screw assembly with adjustable size, including a support body placed between wall formworks, and a tension screw penetrating the wall formworks, the support body including a sleeve and a plug both in the shape of a conical spiral tower, the tip of the sleeve is in contact with the tip of the plug; a wooden square is also pressed tightly on the outside of the wall formwork, the sleeve and the plug are both provided with axial through holes, the tension screw sequentially penetrates the wooden square and the wall formwork, as well as the axial through holes in the sleeve and the plug; a mountain-shaped clamp and a fixing nut are sequentially sleeved on the tension screw, and the mountain-shaped clamp can press a cylindrical or rectangular steel pipe on the outside of the wooden square by tightening the fixing nut. The invention optimizes the structure of the support body, so that it can be removed from the wall to achieve recycling; reduces the contact area with concrete, increases the support area of ​​the formwork, and improves stability; adds a cushion block to increase the scope of application; has a reasonable design, a simple structure, a strong bearing capacity, and is suitable for wide promotion and application.

Description

Technical Field

[0001] The invention relates to the technical field of building material fasteners in building construction, and in particular to a wall-penetrating concealed pipe tensioning screw assembly with rotatable and adjustable size. Background Art

[0002] When pouring concrete, due to the fluidity of concrete, it will generate pressure on the formwork. The higher the floor height, the greater the pressure, so the formwork needs to be reinforced. The outside of the formwork is reinforced with steel pipes and square timbers, and the formwork fixed on both sides of the wall is tightened with through-wall screws in the middle. The entire formwork system can be stable when pouring concrete, so that the casting body meets the construction requirements.

[0003] In the cast-in-place concrete construction of existing building walls, columns and beams, PVC exposed pipes with cement internal supports or whole through-the-wall screws of steel bars are generally used to set up supporting formwork. After the concrete is poured, not only the PVC exposed pipes cannot be removed, but the PVC exposed pipes extending out of the wall make it difficult to disassemble the formwork and need to be removed manually. In addition, during the construction of wall columns and beams, cement strips or steel bars of equal size to the slab wall are required as internal supports. The construction is labor-intensive, time-consuming, and material-intensive, and it is extremely difficult to ensure the flatness of the concrete wall surface, and it is extremely difficult to meet the requirements of no plastering, which greatly increases the construction cost.

[0004] The existing Chinese patent number is: ZL200620135976.0, which discloses a through-wall tension screw rod, which consists of two screw rods and a connecting support member disposed between the two screw rods and threadedly connected to the two screw rods, and a screw end is disposed at the end of the screw rod. Although this structure solves the problem of continuous use of the screw rod, the connecting support member placed inside the wall cannot be removed from the wall after pouring concrete, and the connecting support member cannot be adaptively adjusted according to the actual wall thickness, so it not only has a high cost of use, but also cannot be used for template positioning of different wall thicknesses. Summary of the invention

[0005] The purpose of the present invention is to provide a through-the-wall concealed pipe tension screw assembly with turnaround adjustable size, which can be removed from the wall, reused, and is applicable to walls of various thicknesses, has a reasonable design, a simple structure, and a strong bearing capacity.

[0006] The present invention is realized by the following technical scheme: a through-wall concealed pipe tension screw assembly with adjustable size, comprising a support body placed between wall formworks, and a tension screw penetrating the wall formworks, the support body comprising a sleeve and a plug both in a conical spiral tower shape, the tip of the sleeve being in contact with the tip of the plug;

[0007] The outer side of the wall formwork is also tightly pressed with wooden squares, and the sleeve and the plug are provided with axial through holes inside. The tightening screw passes through the wooden squares and the wall formwork as well as the axial through holes in the sleeve and the plug in turn.

[0008] The tightening screw is sequentially covered with a mountain-shaped clamp and a fixing nut. By tightening the fixing nut, the mountain-shaped clamp can press the cylindrical or rectangular steel pipe tightly against the outside of the wooden square, so that the support body is firmly supported between the wall formworks.

[0009] The working principle of this technical solution is to set the support placed in the inner part of the wall into two parts, a sleeve and a plug, and the tips of the two parts can be detachably connected. In addition, the sleeve is set into a conical table. In this way, after the concrete is poured, the tensioning screw can be easily removed, and then the conical plug and the sleeve in the form of a conical table can be removed from the concrete wall by rotating and pushing, thereby realizing the reuse of the sleeve and the plug.

[0010] In order to better realize the present invention, further, the support body also includes at least one pad matching the end of the sleeve and the end of the plug. The ends of the sleeve and the plug are also provided with a number of sockets arranged in a ring array. The middle of the pad is provided with a through hole for passing the tightening screw. The mating surface between the pad and the end of the sleeve or the end of the plug is provided with a fixing column matching the socket. The pad can be stably fixed to the end of the sleeve or the end of the plug through the matching of the fixing column and the socket. Due to the difference in wall thickness, pads can be set at both ends of the sleeve or the plug according to needs. The pad is fixed to the sleeve and the plug through the fixing column and the socket, which can more stably realize the template support for pouring walls of different thicknesses and is also convenient for disassembly.

[0011] To better implement the present invention, further, the axial height of the cushion block is 50 mm.

[0012] In order to better implement the present invention, further, the length of the fixing column on the cushion block is not greater than the depth of the insertion hole set at the end of the sleeve and the end of the plug.

[0013] To better implement the present invention, further, the number of fixing columns arranged on the cushion block is four, and they are arranged in a ring array around the axis.

[0014] To better implement the present invention, further, the ends of the sleeve and the plug are provided with axial fixing holes which are hexagonal holes or square holes, and one end of the tightening screw inserted into the fixing hole is a matching hexagonal prism or square column.

[0015] In order to better implement the present invention, further, a hexagonal column-shaped groove is provided in the middle of the end of the cushion block, and the through hole in the middle is coaxial with the groove.

[0016] In order to better implement the present invention, further, a hexagonal prism-shaped groove is provided in the middle of the end of the sleeve, and the through hole in the middle is coaxial with the groove.

[0017] To better implement the present invention, further, the axial length of the sleeve is 130~280mm, the axial length of the plug is 20~50mm, the tip of the sleeve is provided with a protrusion matching the tip of the plug, the protrusion at the tip of the sleeve can be nested in the tip of the plug, and the length of the support body formed by the sleeve and the plug is 150~400mm.

[0018] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0019] (1) The present invention arranges the support body inside the wall into an asymmetric sleeve and a plug, wherein the plug is in a cone shape and the sleeve is in a conical platform. In this way, after pouring concrete, the hidden sleeve of the support body can be removed from the wall by rotating and pushing, thereby realizing the recycling of the support body.

[0020] (2) The present invention changes the structure of the support body, changing the traditional straight open sleeve method into an hourglass-shaped support method, so that the contact area with the concrete is relatively reduced, while the support area for the formwork is relatively increased, thereby better protecting the support formwork and improving the stability of the support formwork;

[0021] (3) The present invention increases the wall thickness that can be supported by the tension screw by adding a spacer that matches the sleeve or the plug, so that it can adapt to the support of walls of greater thickness;

[0022] (4) The present invention has a reasonable design, a simple structure, and a strong bearing capacity. It can simplify the operation process of workers and make the entire construction process more concise and clear, and is suitable for wide promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments with reference to the following drawings:

[0024] Figure 1 It is an exploded view of each structure of the present invention;

[0025] Figure 2 It is a cross-sectional view of the present invention when in use.

[0026] Among them: 1-sleeve, 2-plug, 3-tightening screw, 4-mountain-shaped clamp, 5-support steel bar, 6-fixing nut, 7-spacer, 71-through hole, 72-fixing column, 8-wooden square, 9-wall formwork. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Embodiment 1:

[0031] The main structure of this embodiment is as follows: Figure 1 As shown, it includes a support body placed between the wall formworks 9, and a tightening screw 3 passing through the wall formworks 9, the support body includes a sleeve 1 and a plug 2 both of which are in the shape of a conical spiral tower, and the tip of the sleeve 1 is in contact with the tip of the plug 2; a wooden square 8 is also tightly pressed on the outside of the wall formwork 9, and axial through holes are provided inside the sleeve 1 and the plug 2, and the tightening screw 3 passes through the wooden square 8 and the wall formwork 9 as well as the axial through holes in the sleeve 1 and the plug 2 in turn; a mountain-shaped clamp 4 and a fixing nut 6 are sequentially sleeved on the tightening screw 3, and by tightening the fixing nut 6, the mountain-shaped clamp 4 can press the cylindrical or rectangular steel pipe tightly against the outside of the wooden square 8, so that the support body is firmly supported between the wall formworks 9.

[0032] The specific implementation method is as follows: Figure 2 As shown, the tip of the sleeve 1 is connected to the tip of the plug 2, and then fixed between the wall formworks 9 where concrete needs to be poured, and the corresponding wooden squares 8 are fixed on the outside of the wall formworks 9. Then, the tensioning screw 3 is used to penetrate the wall formworks 9 and the wooden squares 8 at both ends, and penetrate the through holes inside the sleeve 1 and the plug 2, so as to first fix the support body composed of the sleeve 1 and the plug 2, and then the support steel bars 5 left inside the wall are placed above the support body.

[0033] The mountain-shaped clamp 4 and the fixing nut 6 are sequentially sleeved on the tensioning screw 3 extending out of the wall formwork 9, so that the connecting section of the mountain-shaped clamp 4 contacts the wooden square 8, and at the same time, the fixing nut 6 on the tensioning screw 3 is tightened. The mountain-shaped clamp 4 presses the cylindrical or rectangular steel pipe against the outside of the wooden square 8 through the fixing nut 6, and cooperates with the sleeve 1 and the plug 2 embedded in the tensioning screw 3, so that the support body is firmly supported between the wall formwork 9 under the condition of internal tension and external pressure.

[0034] Embodiment 2:

[0035] This embodiment further adds a cushion block 7 on the basis of the above embodiment. Figure 1 , Figure 2 As shown, the support body also includes at least one cushion block 7 that matches the end of the sleeve 1 and the end of the plug 2. The end of the sleeve 1 and the end of the plug 2 are also provided with a plurality of sockets arranged in a ring array. A through hole 71 is provided in the middle of the cushion block 7 for passing the tightening screw 3. The fitting surface between the cushion block 7 and the end of the sleeve 1 or the end of the plug 2 is provided with a fixing column 72 that matches the socket. The cushion block 7 can be stably fixed at the end of the sleeve 1 or the end of the plug 2 through the cooperation between the fixing column 72 and the socket.

[0036] When used, a matching gasket 7 is installed on the sleeve 1 or plug 2. The gasket 7 is designed as a truncated cone, and its small end face matches the end face of the sleeve 1 or plug 2. When using the gasket, it is only necessary to place the gasket 7 matching the sleeve 1 or plug 2 at both ends, and then insert the fixing column 7 provided on the gasket 7 into the insertion hole provided on the sleeve 1 or plug 2. The insertion hole depth is not less than the length of the fixing column 7. The gasket 7 can completely fit with the sleeve 1 or plug 2, so that the gasket 7 becomes a component of the support body, increasing the length of the support body. There is a through hole in the middle of the gasket 7 that passes through the tensioning screw 3, which will not affect the insertion of the sleeve 1 or plug 2 on the tensioning screw 3. The other parts of this embodiment are the same as the above embodiment and will not be repeated.

[0037] Embodiment 3:

[0038] Based on the above embodiment, this embodiment further limits the axial length of the cushion block 7, and the axial height of the cushion block 7 is 50 mm. Since the wall thickness has a fixed standard, the axial height of the cushion block 7 is set to be precisely 50 mm to meet the support requirements for the wall formwork 9. The other parts of this embodiment are the same as the above embodiment and will not be repeated.

[0039] Embodiment 4:

[0040] On the basis of the above embodiment, this embodiment further limits the length of the fixing column 72 on the cushion block 7 to be no greater than the depth of the insertion holes set at the ends of the sleeve 1 and the plug 2. When the cushion block 7 is fixed to one end of the sleeve 1 or the plug 2, it can completely fit with the sleeve 1 or the plug 2. The other parts of this embodiment are the same as the above embodiment and will not be repeated.

[0041] Embodiment 5:

[0042] Based on the above embodiment, this embodiment further limits the number of fixing columns 72 on the cushion block 7, such as Figure 1 As shown, the number of fixing columns 72 provided on the cushion block 7 is four, and they are arranged in a ring array with the axis as the center. The four fixing columns 72 arranged in a ring array can ensure the stability of the combination of the cushion block 7 and the sleeve 1 or the plug 2. The other parts of this embodiment are the same as those of the above embodiment and will not be repeated.

[0043] Embodiment 6:

[0044] Based on the above embodiment, this embodiment further defines the structure of the cushion block 71, such as Figure 1 As shown, a hexagonal prism-shaped groove is provided in the middle of the end of the pad 71, and the through hole in the middle is coaxial with the groove. The hexagonal or rectangular groove is provided at the end of the pad 71 to facilitate the use of a hexagonal wrench or a square wrench to be inserted into the groove of the pad 71, and then by turning the wrench, the pad 71 is driven to rotate, thereby driving the sleeve 1 or the plug 2 to rotate, so as to facilitate the sleeve 1 or the plug 2 to be unscrewed from the poured concrete. The other parts of this embodiment are the same as the above embodiment and will not be repeated.

[0045] Embodiment 7:

[0046] Based on the above embodiment, this embodiment further defines the structure of the sleeve 1 and the plug 2, such as Figure 1 As shown, a hexagonal prism-shaped groove is provided in the middle of the end of the sleeve 1, and the through hole in the middle of the sleeve 1 is coaxial with the groove. A hexagonal prism-shaped groove is provided in the middle of the end of the plug 2, and the through hole in the middle of the plug 2 is coaxial with the groove. A hexagonal prism-shaped groove or a quadrangular prism-shaped groove is added to the end of the sleeve 1 or the plug 2 to facilitate the insertion of a hexagonal wrench or a square wrench, and the sleeve 1 or the plug 2 is unscrewed from the poured concrete using the wrench. The other parts of this embodiment are the same as the above embodiment and will not be repeated.

[0047] Embodiment 8:

[0048] On the basis of the above embodiment, this embodiment further defines the axial length of the sleeve 1 and the plug 2. The axial length of the sleeve 1 is 130-280 mm, and the axial length of the plug 2 is 20-50 mm. The tip of the sleeve 1 is provided with a protrusion matching the tip of the plug 2. The protrusion at the tip of the sleeve 1 can be nested in the tip of the plug 2. The length of the support body formed by the sleeve 1 and the plug 2 is 150-400 mm. Since the thickness of the wall has a fixed standard, the length of the support body formed by the sleeve 1 and the tip of the plug 2 is 150-400 mm of the thickness of the wall. The other parts of this embodiment are the same as the above embodiment and will not be repeated.

[0049] It can be understood that the working principles and working processes of the through-wall tension screw structure according to an embodiment of the present invention, such as the screw 3 and the fixing nut 6 and other components, are prior art and are well known to technicians in this field, and will not be described in detail here.

[0050] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A wall-penetrating concealed pipe tensioning screw assembly with adjustable size, comprising a support body placed between wall formworks (9), and a tensioning screw (3) penetrating the wall formworks (9), characterized in that: The support body comprises a sleeve (1) and a plug (2) both of which are in the shape of a conical spiral tower, and the tip of the sleeve (1) is in contact with the tip of the plug (2); The outer side of the wall formwork (9) is also tightly pressed with a wooden square (8), and the inside of the sleeve (1) and the plug (2) are both provided with axial through holes, and the tensioning screw (3) passes through the wooden square (8) and the wall formwork (9) as well as the axial through holes in the sleeve (1) and the plug (2) in sequence; A mountain clamp (4) and a fixing nut (6) are sequentially sleeved on the tensioning screw (3); by tightening the fixing nut (6), the mountain clamp (4) can press the cylindrical or rectangular steel pipe against the outside of the wooden square (8), so that the support body is firmly supported between the wall formworks (9); the support body also includes at least one cushion block (7) matching the end of the sleeve (1) or the end of the plug (2); the end of the sleeve (1) and the end of the plug (2) are also provided with a plurality of insertion holes arranged in a ring array; the middle of the cushion block (7) is provided with a through hole (71) passing through the tensioning screw (3); the mating surface between the cushion block (7) and the end of the sleeve (1) or the end of the plug (2) is provided with a fixing column (72) matching the insertion hole; the cushion block (7) can be stably fixed to the end of the sleeve (1) or the end of the plug (2) through the matching of the fixing column (72) and the insertion hole.

2. The wall-penetrating concealed pipe tensioning screw assembly with adjustable size according to claim 1, characterized in that: The axial height of the cushion block (7) is 50 mm.

3. A wall-penetrating concealed pipe tensioning screw assembly with adjustable size according to claim 1 or 2, characterized in that: The length of the fixing column (72) on the cushion block (7) is no greater than the depth of the insertion holes provided at the ends of the sleeve (1) and the plug (2).

4. A wall-penetrating concealed pipe tensioning screw assembly with adjustable size according to claim 1 or 2, characterized in that: The number of fixed columns (72) provided on the cushion block (7) is four, and they are arranged in a circular array around an axis.

5. A wall-penetrating concealed pipe tensioning screw assembly with adjustable size according to claim 1 or 2, characterized in that: A hexagonal column-shaped groove is provided in the middle of the end of the cushion block (7), and a through hole (71) in the middle thereof is coaxial with the groove.

6. A wall-penetrating concealed pipe tensioning screw assembly with adjustable size according to claim 1 or 2, characterized in that: A hexagonal prism-shaped groove is provided in the middle of the end of the sleeve (1), and the through hole in the middle of the sleeve (1) is coaxial with the groove. A hexagonal prism-shaped groove is provided in the middle of the end of the plug (2), and the through hole in the middle of the plug (2) is coaxial with the groove.

7. A wall-penetrating concealed pipe tensioning screw assembly with adjustable size according to claim 1 or 2, characterized in that: The axial length of the sleeve (1) is 130-280 mm, the axial length of the plug (2) is 20-50 mm, the tip of the sleeve (1) is provided with a protrusion matching the tip of the plug (2), and the protrusion at the tip of the sleeve (1) can be nested in the tip of the plug (2).

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