Preset anchor and scaffold fixing device

Abstract

The utility model discloses a preset anchor piece and a scaffold fixing device. The preset anchor piece is provided with a first barrel, the first barrel is provided with internal threads, and the preset anchor piece further comprises anchor teeth which are distributed on the outer side of the first barrel in an annular mode. The flange is arranged at the opening end of the first cylinder body, and a first through hole is formed in the flange; the sealing gasket is matched with the flange in size, the sealing gasket is arranged between the flange and the cast-in-place formwork, and a second through hole is formed in the sealing gasket; the fixing piece comprises a first screw rod and a nut, a third through hole is formed in the cast-in-place formwork, and the first screw rod sequentially penetrates through the third through hole, the second through hole and the first through hole and then is connected with the nut. By arranging the anchor teeth, the contact area between the anchor teeth and concrete can be increased, and the anchoring effect is further improved. And by arranging a sealing gasket, concrete can be effectively prevented from permeating into the first barrel, and the influence on subsequent connection with the scaffold is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of scaffolding, and more specifically, to pre-installed anchors and scaffolding fixing devices. Background Technology

[0002] External scaffolding typically requires connection to beams, columns, or shear walls via wall ties to enhance its stability. Common wall tie methods include: bracing, pre-embedded connections, post-anchoring, and column clamping. Among these, the pre-embedded method offers the best rigidity and is the most frequently used. Currently, the most common pre-embedded methods are pre-embedded steel pipes and pre-embedded iron plates.

[0003] Pre-embedded steel pipe method: Before pouring, a short vertical steel pipe is pre-embedded at the corresponding position. After pouring, a long horizontal steel pipe is used to connect the upright to the exposed short vertical steel pipe. Although this method has good rigidity, dismantling after masonry construction is troublesome, and the openings left in the masonry need to be sealed later, which poses a risk of water seepage.

[0004] Embedded iron plate method: Before pouring, iron plates with anchor feet are pre-embedded at the corresponding positions. After pouring, steel pipes are welded to the iron plates exposed on the beam or column side, and the other side of the steel pipes is connected to the uprights of the scaffolding with couplers. Although this method has good rigidity and eliminates the need for masonry patching, there is a fire hazard during welding. Utility Model Content

[0005] The main purpose of this utility model is to provide pre-installed anchors and scaffold fixing devices to solve the above-mentioned technical problems existing in the pre-embedded steel pipe method and the pre-embedded iron plate method in the prior art.

[0006] To achieve the above objectives, this utility model first provides a pre-installed anchor, the technical solution of which is as follows:

[0007] Pre-installed anchors are used to be embedded in cast-in-place beams, columns, or shear walls to fix scaffolding after the cast-in-place formwork is removed. Each pre-installed anchor has a first cylindrical body with internal threads. It also includes: anchor teeth distributed in a ring on the outer side of the first cylindrical body; a flange located at the open end of the first cylindrical body with a first through hole; a sealing gasket adapted to the size of the flange and positioned between the flange and the cast-in-place formwork, with a second through hole; and a fixing member including a first screw and a nut. The cast-in-place formwork has a third through hole, and the first screw passes through the third through hole, the second through hole, and the first through hole sequentially before connecting to the nut.

[0008] In the pre-installed anchor of this utility model, the contact area with the concrete is increased by setting anchor teeth, thereby improving the anchoring effect. The sealing gasket effectively prevents concrete from seeping into the first cylinder, avoiding any impact on the subsequent connection with the scaffolding. Installation using a first screw and nut is simple, safe, and efficient. After the cast-in-place formwork is removed and the scaffolding is dismantled, only tiny blind holes are formed on the wall surface, which are easy to seal.

[0009] As a further improvement to the aforementioned pre-installed anchor, at least two rows of anchor teeth are provided along the axial direction of the first cylinder, with adjacent rows of anchor teeth staggered. This enhances the anchoring effect.

[0010] As a further improvement to the aforementioned pre-installed anchor, the first cylinder has a thickened section, with internal threads located inside the thickened section and anchor teeth located outside the thickened section. This further enhances the rigidity of the pre-installed anchor.

[0011] As a further improvement to the aforementioned pre-installed anchor, the pre-installed anchor also has a second cylinder connected to the outside of the flange, and the sealing gasket is installed inside the second cylinder. This further prevents concrete from seeping into the first cylinder.

[0012] As a further improvement to the aforementioned pre-installed anchor, the sealing gasket is provided with protrusions that fit the first cylinder. This improves the sealing effect.

[0013] As a further improvement to the aforementioned pre-installed anchor, the third through hole, the second through hole, and the first through hole are evenly distributed in a ring. This makes the connection between the pre-installed anchor and the cast-in-place formwork more stable, improves the sealing effect, prevents the pre-installed anchor from tilting due to concrete impact, and enhances the efficiency of subsequent connection with the scaffolding.

[0014] To achieve the above objectives, this utility model further provides a scaffolding fixing device, the technical solution of which is as follows:

[0015] The scaffolding fixing device includes a pre-embedded anchor that is embedded in a cast-in-place beam, column, or shear wall and connected to the scaffolding via a second screw. The pre-embedded anchor has a first cylinder that is threadedly connected to the second screw. The pre-embedded anchor also includes anchor teeth and a flange. The anchor teeth are distributed on the outside of the first cylinder in a ring shape, and the flange is located at the open end of the first cylinder. The flange has a first through hole. The scaffolding fixing device also includes a gasket that is adapted to the size of the flange. The gasket has a through hole adapted to the second screw.

[0016] In addition to the advantages of the pre-installed anchors mentioned above, the scaffold fixing device of this utility model can improve the connection strength between the pre-installed anchors and the second screw by setting shims to fill the gaps formed after the sealing gaskets are removed.

[0017] As a further improvement to the aforementioned scaffolding fixing device, the scaffolding fixing device also includes a steel plate and a steel pipe, which are welded together. The steel plate has a fourth through hole for the second screw to pass through, and the steel pipe is detachably connected to the scaffolding column. Therefore, the structure is simple and easy to assemble and disassemble.

[0018] As a further improvement to the aforementioned scaffolding fixing device, the steel plate is provided with multiple fourth through holes. This allows for adjustment of the position of the steel pipes.

[0019] As a further improvement to the aforementioned scaffolding fixing device, each steel plate is connected to at least two sets of pre-installed anchors and a second threaded rod. This enhances the fixing effect on the steel plates and pipes.

[0020] The embodiments of the invention provided in this specification will be further described below with reference to the accompanying drawings and specific embodiments. Additional aspects and advantages of the embodiments of the invention provided in this specification will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the embodiments of the invention provided in this specification. Attached Figure Description

[0021] The accompanying drawings, which form part of the embodiments of the invention provided in this specification, are used to aid in understanding the embodiments of the invention provided in this specification. The content provided in the drawings and the related descriptions in the embodiments of the invention provided in this specification can be used to explain the embodiments of the invention provided in this specification, but do not constitute an undue limitation on the embodiments of the invention provided in this specification. In the drawings:

[0022] Figure 1 This is a schematic diagram of the pre-installed anchor in Embodiment 1 of this utility model.

[0023] Figure 2 This is a schematic diagram of the scaffold fixing device according to Embodiment 1 of this utility model.

[0024] Figure 3 This is a side view of the steel plate and steel pipe in the scaffold fixing device of Embodiment 1 of this utility model.

[0025] Figure 4 This is a schematic diagram of the scaffold fixing device according to Embodiment 2 of this utility model.

[0026] Figure 5 This is a side view of the steel plate and steel pipe in the scaffold fixing device of Embodiment 2 of this utility model.

[0027] The relevant markings in the above figures are:

[0028] 110-Cast-in-place formwork, 120-Concrete, 210-First cylinder, 211-Internal thread, 212-Thickened section, 220-Anchor tooth, 230-Flange, 240-Sealing gasket, 241-Protrusion, 251-First screw, 252-Nut, 260-Second cylinder, 300-Second screw, 400-Washer, 500-Steel plate, 510-Fourth through hole, 600-Steel pipe. Detailed Implementation

[0029] The embodiments of the invention provided in this specification will now be clearly and completely described in conjunction with the accompanying drawings. Those skilled in the art will be able to implement the embodiments of the invention provided in this specification based on these descriptions. Before describing the embodiments of the invention provided in this specification in conjunction with the accompanying drawings, it should be particularly noted that:

[0030] The technical solutions and features provided in the embodiments of the invention provided in this specification, including the following description, can be combined with each other without conflict.

[0031] Furthermore, the embodiments of the inventions provided in this specification mentioned below are generally only a portion of the embodiments of the inventions provided in this specification, and not all of them. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the inventions provided in this specification without creative effort should fall within the scope of protection of the embodiments of the inventions provided in this specification.

[0032] Regarding the terminology and units in the embodiments of the invention provided in this specification: The terms "comprising," "including," "having," and any variations thereof in the description, claims, and related parts of the embodiments of the invention provided in this specification are intended to cover non-exclusive inclusion. Furthermore, other relevant terms and units in the embodiments of the invention provided in this specification can be reasonably interpreted based on the relevant content of the embodiments of the invention provided in this specification.

[0033] Example 1

[0034] Figure 1 This is a schematic diagram of the pre-installed anchor in this embodiment. Figure 2 This is a schematic diagram of the scaffold fixing device in this embodiment. Figure 3 This is a side view of the steel plate and steel pipe in the scaffolding fixing device of this embodiment.

[0035] like Figure 1The pre-installed anchor shown is used to be embedded in cast-in-place beams, columns or shear walls and to fix the scaffolding after the cast-in-place formwork 110 is demolded. The pre-installed anchor has a first cylinder 210, anchor teeth 220, flange 230, sealing gasket 240, fixing member and second cylinder 260.

[0036] The first cylindrical body 210 has an internal thread 211; the first cylindrical body 210 has a thickened section 212, the internal thread 211 is located inside the thickened section 212, and the anchor tooth 220 is located outside the thickened section 212.

[0037] The anchor teeth 220 are distributed on the outside of the first cylinder 210 in a ring shape; four rows of anchor teeth 220 are arranged along the axial direction of the first cylinder 210, and adjacent rows of anchor teeth 220 are staggered.

[0038] The flange 230 is provided at the open end of the first cylinder 210, and the flange 230 is provided with a first through hole;

[0039] The sealing gasket 240 is adapted to the size of the flange 230. The sealing gasket 240 is disposed between the flange 230 and the cast-in-place template 110. The sealing gasket 240 is provided with a second through hole and a protrusion 241 adapted to the first cylinder 210. The second cylinder 260 is connected to the outside of the flange 230, and the sealing gasket 240 is installed inside the second cylinder 260.

[0040] The fastener includes a first screw 251 and a nut 252. The cast-in-place template 110 is provided with a third through hole. The first screw 251 passes through the third through hole, the second through hole and the first through hole in sequence and is then connected to the nut 252.

[0041] The third through hole, the second through hole, and the first through hole are evenly distributed in a ring.

[0042] like Figure 2 The scaffold fixing device shown includes a pre-embedded anchor that is embedded in the cast-in-place beam, column or shear wall and connected to the scaffold via a second screw 300. The pre-embedded anchor has the aforementioned first cylinder 210, anchor teeth 220 and flange 230. The first cylinder 210 is threadedly connected to the second screw 300.

[0043] The scaffolding fixing device also includes a gasket 400, a steel plate 500, and a steel pipe 600. The gasket 400 is adapted to the size of the flange 230, and the gasket 400 has a through hole adapted to the second screw 300. The steel plate 500 and the steel pipe 600 are welded together, and the steel plate 500 has a fourth through hole 510 for the second screw 300 to pass through. The steel pipe 600 is detachably connected to the scaffolding column.

[0044] Example 2

[0045] Figure 4This is a schematic diagram of the scaffold fixing device in this embodiment. Figure 5 This is a side view of the steel plate 500 and steel pipe 600 in the scaffolding fixing device of this embodiment.

[0046] Compared with Example 1, the scaffolding fixing device in this embodiment differs in that: Figure 4-5 As shown, the steel plate 500 is provided with a plurality of fourth through holes 510, and each steel plate 500 is connected to at least two sets of pre-set anchors and second screws 300.

[0047] In use, first, the pre-installed anchors are fixed to the cast-in-place formwork 110 using fasteners, and then concrete 120 is poured. After pouring, the cast-in-place formwork 110 is removed, and the first screw 251 and sealing gasket 240 are taken off. Then, the gasket 400 is installed into the second cylinder 260, followed by the second screw 300, steel plate 500, and steel pipe 600. Finally, the steel pipe 600 is connected to the scaffolding column. For the gaps formed by the first screw 251, the first cylinder 210, and the second cylinder 260 after the scaffolding is dismantled, grouting can be used for sealing.

[0048] The embodiments of the invention provided in this specification have been described above. Those skilled in the art will be able to implement the embodiments of the invention provided in this specification based on these descriptions. All other preferred embodiments and implementations obtained by those skilled in the art based on the above description of the embodiments of the invention provided in this specification without inventive effort should fall within the protection scope of the embodiments of the invention provided in this specification.

Claims

1. A pre-installed anchor, used for pre-embedding in cast-in-place beams, columns, or shear walls and for fixing scaffolding after the cast-in-place formwork (110) is demolded, the pre-installed anchor having a first cylinder (210) having an internal thread (211), characterized in that: Pre-installed anchors also include: Anchor teeth (220) are distributed on the outside of the first cylinder (210) in a ring shape; A flange (230) is provided at the open end of the first cylinder (210), and a first through hole is provided on the flange (230); A sealing gasket (240) is provided, the sealing gasket (240) being adapted to the size of the flange (230), the sealing gasket (240) being disposed between the flange (230) and the cast-in-place template (110), and the sealing gasket (240) having a second through hole. The fastener includes a first screw (251) and a nut (252). The cast-in-place template (110) is provided with a third through hole. The first screw (251) passes through the third through hole, the second through hole and the first through hole in sequence and is connected to the nut (252).

2. The pre-installed anchor as described in claim 1, characterized in that: At least two rows of anchor teeth (220) are provided along the axial direction of the first cylinder (210), and the adjacent rows of anchor teeth (220) are staggered.

3. The pre-installed anchor as described in claim 1, characterized in that: The first cylindrical body (210) has a thickened section (212), an internal thread (211) is provided inside the thickened section (212), and an anchor tooth (220) is provided outside the thickened section (212).

4. The pre-installed anchor as described in claim 1, characterized in that: The pre-installed anchor also has a second cylinder (260) connected to the outside of the flange (230), and the sealing gasket (240) is installed inside the second cylinder (260).

5. The pre-installed anchor as described in claim 1, characterized in that: The sealing gasket (240) is provided with a protrusion (241) that is adapted to the first cylinder (210).

6. The pre-installed anchor as described in claim 1, characterized in that: The third through hole, the second through hole, and the first through hole are evenly distributed in a ring.

7. A scaffold fixing device, comprising a pre-embedded anchor embedded in a cast-in-place beam, column, or shear wall and connected to the scaffold via a second screw (300), the pre-embedded anchor having a first cylinder (210) threadedly connected to the second screw (300); characterized in that: The pre-installed anchor also includes anchor teeth (220) and flange (230). The anchor teeth (220) are distributed on the outside of the first cylinder (210) and are arranged in a ring. The flange (230) is provided at the open end of the first cylinder (210) and has a first through hole. The scaffold fixing device also includes a gasket (400) that is adapted to the size of the flange (230) and has a through hole adapted to the second screw (300).

8. The scaffolding fixing device as described in claim 7, characterized in that: The scaffold fixing device also includes a steel plate (500) and a steel pipe (600), which are welded together. The steel plate (500) has a fourth through hole (510) through which the second screw (300) passes. The steel pipe (600) is detachably connected to the uprights of the scaffold.

9. The scaffolding fixing device as described in claim 8, characterized in that: The steel plate (500) is provided with a plurality of fourth through holes (510).

10. The scaffolding fixing device as described in claim 9, characterized in that: Each steel plate (500) is connected to at least two sets of pre-installed anchors and a second screw (300).

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