Embedded bolt for reinforcing bottom of external wall column formwork

Abstract

The utility model discloses an embedded bolt for reinforcing the bottom of an external wall column template, which relates to the technical field of external wall column template reinforcement and comprises a bolt main body and an external thread column, a threaded hole is arranged in the middle of the inner end face of the external thread column, and four groups of limiting grooves are arranged at the inner end of the external thread column close to the edge. An extending groove is formed in the bolt body, a limiting sliding rod is fixedly connected to the inner side face of the extending groove, the outer side face, close to one end, of the bolt body is fixedly sleeved with an annular baffle disc, a threaded baffle ring is in threaded connection with the outer side, close to one end, of the external threaded column, and a rotating handle is arranged at the outer end of the bolt body. The embedded bolt has the advantages that outer wall formworks with different thicknesses can be reinforced and mounted, the embedded bolt has good applicability, the outer wall formworks can be conveniently and quickly dismounted, the turnover rate of the formworks is increased, the contact area between the bolt body and concrete is increased, and the placement tightness of the embedded bolt is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of outer wall column formwork reinforcement, particularly relates to a pre -buried bolt for reinforcing the bottom of outer wall column formwork. BACKGROUND

[0002] The bottom reinforcement of the outer wall column formwork is a technical measure used in the construction process to ensure that the outer wall column formwork remains stable and in precise position during concrete pouring and solidification. Its main purpose is to prevent the formwork from moving, deforming or falling off when subjected to the lateral pressure of concrete, thereby ensuring that the shape and size of the poured concrete column meet the design requirements and improving construction quality and safety. During the bottom reinforcement of the outer wall column formwork, pre-buried bolts are often used

[0003] After searching, patent number CN210069270U discloses a pre-buried bolt. During pre-burial, the internal thread section and the fixing nut are poured with concrete at the same time. During pouring, the end of the fixing nut is exposed outside the concrete. After the concrete solidifies, the pre-burial is completed. After use, the bolt body is turned out by a tool, and then a wrench-like tool that cooperates with the tool slot is used to turn out the fixing nut. However, the existing pre-buried bolt for reinforcing the bottom of the outer wall column formwork can only reinforce outer wall formworks of specific thickness during use, has poor applicability, is inconvenient to disassemble and assemble, and is not conducive to formwork turnover. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a pre-buried bolt for reinforcing the bottom of an outer wall column formwork. The existing pre-buried bolt for reinforcing the bottom of an outer wall column formwork can only reinforce outer wall formworks of specific thickness during use, has poor applicability, is inconvenient to disassemble and assemble, and is not conducive to formwork turnover.

[0005] To solve the above technical problems, the technical scheme of the utility model is a pre-buried bolt for reinforcing the bottom of an outer wall column formwork, which comprises a bolt body and an external thread column. A threaded hole is formed in the middle position of the inner end face of the external thread column, and four sets of limiting grooves are formed in the inner end of the external thread column close to the edge position. An extension groove is formed in the bolt body, and a limiting slide rod is fixedly connected to the inner side of the extension groove. A ring stop disc is fixedly sleeved to the outer side of the bolt body close to one end, and a threaded stop ring is threadedly connected to the outer side of the external thread column close to one end.

[0006] As a further scheme of the utility model, a rotating handle is arranged at the outer end of the bolt body. A rotating screw rod is fixedly connected to the inner side of the rotating handle and penetrates through the bolt body. The rotating screw rod is threadedly connected to the external thread column through the threaded hole. The external thread column is located on the inner side of the extension groove.

[0007] As a further scheme of the utility model: four groups of the limiting slide rod are symmetrically arranged about the rotating screw rod, and four groups of limiting slide rods are respectively connected with the outer threaded column through the limiting groove.

[0008] As a further scheme of the utility model: the outer side of the bolt body is respectively fixedly connected with two groups of first embedded columns and two groups of second embedded columns near two ends, the inner side of two groups of the first embedded columns is provided with a first extension screw rod, and the inner side of two groups of the second embedded columns is provided with a second extension screw rod.

[0009] As a further scheme of the utility model: two groups of the first embedded column and two groups of the second embedded column are symmetrically arranged about the outer threaded column, the first embedded column and the second embedded column are perpendicularly arranged, a first threaded column groove is formed in two groups of the first embedded column, and a second threaded column groove is formed in two groups of the second embedded column.

[0010] As a further scheme of the utility model: two groups of the first extension screw rod are respectively connected with two groups of the first embedded column through the first threaded column groove, and two groups of the second extension screw rod are respectively connected with two groups of the second embedded column through the second threaded column groove.

[0011] Compared with the prior art, the utility model has the advantages that: the rotating handle of the outer end of the bolt body is rotated to drive the rotating screw rod penetrating through the bolt body to rotate, so that the outer threaded column is slid along the extension groove through the threaded connection of the rotating screw rod and the outer threaded column and the cooperation of the ring stop disc and the threaded stop ring, the outer wall formwork is tightly attached to the outer wall column, different thicknesses of the outer wall formwork can be reinforced and installed, the utility model has good applicability, the outer wall formwork can be quickly disassembled, and the formwork turnover rate is improved.

[0012] The first threaded column groove is used to make two groups of the first extension screw rod respectively spirally extend to the outside of two groups of the first embedded column, the second threaded column groove is used to make two groups of the second extension screw rod respectively spirally extend to the outside of two groups of the second embedded column, the first embedded column and the second embedded column are perpendicularly arranged and respectively symmetrically distributed on the outer side of the bolt body, the contact area of the bolt body and the concrete is increased, and the installation and fastening of the embedded bolt are significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the embedded bolt for reinforcing the bottom of the outer wall column formwork in the utility model embodiment.

[0014] Figure 2 It is a sectional view of the bolt body in the utility model embodiment.

[0015] Figure 3The utility model discloses a first embedded column and second embedded column's connecting structure schematic view of embodiment of the utility model.

[0016] Figure 4 The utility model discloses a first embedded column and second embedded column's side view schematic view of embodiment of the utility model.

[0017] In the drawing: 1, bolt main body;2, extension groove;3, outer thread column;4, rotating handle;5, rotating screw;6, threaded hole;7, limiting groove;8, limiting sliding rod;9, ring baffle;10, threaded baffle ring;11, first embedded column;12, first threaded column groove;13, first extension screw;14, second embedded column;15, second threaded column groove;16, second extension screw. Specific implementation

[0018] The specific implementation of the utility model is further explained below in combination with the drawings. It needs to be explained here that the explanation of these implementations is used to help understand the utility model, but does not constitute the limitation of the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0019] Embodiment 1, please refer to Figures 1-4 A pre-buried bolt for reinforcing the bottom of an outer wall column formwork, including bolt main body 1, still including outer thread column 3, the middle position of the inner end face of outer thread column 3 is provided with threaded hole 6, and the inner end of outer thread column 3 is provided with four sets of limiting grooves 7 close to the edge position, bolt main body 1 is provided with extension groove 2, the inner side of extension groove 2 is fixedly connected with limiting sliding rod 8, the outer side of bolt main body 1 is fixedly sleeved with ring baffle 9 close to one end, and threaded baffle ring 10 is threadedly connected with the outer side of outer thread column 3 close to one end.

[0020] The outer end of bolt main body 1 is provided with rotating handle 4, the inner side of rotating handle 4 is fixedly connected with rotating screw 5 penetrating through bolt main body 1, and rotating screw 5 is threadedly connected with outer thread column 3 through threaded hole 6, outer thread column 3 is located at the inner side of extension groove 2, four sets of limiting sliding rods 8 are symmetrically arranged about rotating screw 5, and four sets of limiting sliding rods 8 are slidably connected with outer thread column 3 through limiting grooves 7 respectively.

[0021] In the embodiment, the threaded connection of rotating screw 5 and outer thread column 3 cooperates with four sets of limiting sliding rods 8 and four sets of limiting grooves 7 to facilitate the movement of outer thread column 3.

[0022] Specifically, by rotating the rotating handle 4 at the outer end of the bolt body 1, the rotating screw rod 5 penetrating the bolt body 1 is driven to rotate, so that the outer threaded column 3 is slid along the extension groove 2 through the threaded connection of the rotating screw rod 5 and the outer threaded column 3 cooperating with the four sets of limiting sliding rods 8 and the four sets of limiting grooves 7, and the outer wall formwork is tightly fitted on the outer wall column under the cooperation of the ring stop disc 9 and the threaded stop ring 10, so that the outer wall formwork of different thicknesses can be reinforced and installed, which has good applicability and is convenient for quickly disassembling the outer wall formwork, thereby improving the formwork turnover rate.

[0023] Embodiment 2, please refer to Figures 1-4 A pre-buried bolt for reinforcing the bottom of an outer wall column formwork, the outer side of the bolt body 1 is fixedly connected with two groups of first pre-buried columns 11 and two groups of second pre-buried columns 14 near the two ends, respectively, the inner side of each of the two groups of first pre-buried columns 11 is provided with a first extension screw rod 13, and the inner side of each of the two groups of second pre-buried columns 14 is provided with a second extension screw rod 16.

[0024] The two groups of first pre-buried columns 11 and the two groups of second pre-buried columns 14 are symmetrically arranged about the outer threaded column 3, the first pre-buried columns 11 are arranged perpendicularly to the second pre-buried columns 14, the first threaded column grooves 12 are formed in the two groups of first pre-buried columns 11, and the second threaded column grooves 15 are formed in the two groups of second pre-buried columns 14.

[0025] In this embodiment, the two groups of first pre-buried columns 11 and the two groups of second pre-buried columns 14 are used for pre-buried use of the pre-buried bolt.

[0026] The two groups of first extension screw rods 13 are threadedly connected with the two groups of first pre-buried columns 11 through the first threaded column grooves 12, respectively, and the two groups of second extension screw rods 16 are threadedly connected with the two groups of second pre-buried columns 14 through the second threaded column grooves 15, respectively.

[0027] In this embodiment, the first threaded column grooves 12 and the second threaded column grooves 15 are used for extension use of the first extension screw rods 13 and the second extension screw rods 16.

[0028] Specifically, the two groups of first extension screw rods 13 are helically extended to the outside of the two groups of first pre-buried columns 11 through the first threaded column grooves 12, respectively, and the two groups of second extension screw rods 16 are helically extended to the outside of the two groups of second pre-buried columns 14 through the second threaded column grooves 15, respectively, and the first pre-buried columns 11 and the second pre-buried columns 14 are arranged perpendicularly and symmetrically distributed on the outer side of the bolt body 1, thereby increasing the contact area of the bolt body 1 with the concrete and significantly improving the installation and fastening of the pre-buried bolt.

[0029] The embodiments of the present application are described in detail in combination with the drawings, but the present application is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirits of the present application, and still fall within the protection scope of the present application.

Claims

1. A pre-bolt for reinforcing the bottom of a formwork for an exterior wall column, comprising a bolt body (1), characterized in that: Also include the outer thread column (3), the inner end of the outer thread column (3) is provided with a threaded hole (6) in the middle position, and the inner end of the outer thread column (3) is provided with four sets of limiting grooves (7) near the edge position, the bolt body (1) is provided with an extension slot (2), the inner side of the extension slot (2) is fixedly connected with a limiting slide rod (8), the outer side of the bolt body (1) is fixedly sleeved with a ring stop disc (9) near one end, and the outer side of the outer thread column (3) is threadedly connected with a threaded stop ring (10) near one end.

2. The pre-buried bolt for reinforcing the bottom of the outer wall column formwork according to claim 1, characterized in that: The outer end of the bolt body (1) is provided with a rotating handle (4), the inner side of the rotating handle (4) is fixedly connected with a rotating screw rod (5) penetrating through the bolt body (1), and the rotating screw rod (5) is threadedly connected with the outer thread column (3) through the threaded hole (6), the outer thread column (3) is located in the inner side of the extension slot (2).

3. The pre-buried bolt for reinforcing the bottom of the outer wall column formwork according to claim 2, characterized in that: Four sets of the limiting slide rod (8) are symmetrically arranged about the rotating screw rod (5), and the four sets of limiting slide rods (8) are respectively slidably connected with the outer thread column (3) through the limiting grooves (7).

4. The pre-buried bolt for reinforcing the bottom of the outer wall column formwork according to claim 1, characterized in that: The outer side of the bolt body (1) is fixedly connected with two groups of first embedded columns (11) and two groups of second embedded columns (14) near the two ends, respectively, the inner side of the two groups of first embedded columns (11) is provided with a first extension screw rod (13), and the inner side of the two groups of second embedded columns (14) is provided with a second extension screw rod (16).

5. The pre-bolt for reinforcing the bottom of a formwork for an exterior wall column according to claim 4, characterized in that: The two groups of first embedded columns (11) and the two groups of second embedded columns (14) are symmetrically arranged about the outer thread column (3), the first embedded column (11) and the second embedded column (14) are arranged perpendicularly, the first embedded column (11) is provided with a first threaded column groove (12), and the second embedded column (14) is provided with a second threaded column groove (15).

6. The pre-bolt for reinforcing the bottom of a formwork for an exterior wall column according to claim 5, characterized in that: The two groups of first extension screw rods (13) are respectively threadedly connected with the two groups of first embedded columns (11) through the first threaded column grooves (12), and the two groups of second extension screw rods (16) are respectively threadedly connected with the two groups of second embedded columns (14) through the second threaded column grooves (15).

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