Pre-buried exposed steel bar protection device

Abstract

The utility model discloses a pre-buried exposed reinforcing steel bar protection device which comprises an outer shell and a fixed shell, the top end of the outer shell is fixedly connected with the fixed shell, the inner side of the fixed shell is slidably connected with a clamping block, one end of the clamping block is fixedly connected with a movable column, the outer side of the movable column is slidably connected with a guide plate, and the guide plate is fixedly connected with the outer side of the outer shell. After the outer shell 1 is inserted into the outer side of the embedded steel bar, a worker rotates a rotating cylinder, so that the rotating cylinder spirally rotates on the outer side of a threaded ring, meanwhile, the rotating cylinder drives a wedge-shaped ring to rotate through a fixing rod, the wedge-shaped ring gradually extrudes a wedge-shaped block, and the embedded steel bar is fixed through the wedge-shaped block; the wedge-shaped block drives the clamping block through the connecting rod and the movable column to clamp the embedded steel bar, so that the device and the embedded steel bar are fixed together, the surface of a concrete wall does not need to be drilled, the labor amount of workers is reduced, and the overall mounting efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a protective device for pre-embedded exposed steel bars. Background Technology

[0002] During construction, steel bars are often embedded in walls, such as in prefabricated walls of prefabricated buildings and shear walls. Due to the deformation requirements of the structural concrete, the exposed portion of these steel bars needs to be exposed to the air for extended periods. When exposed to rain and air for a long time, the steel bars are prone to corrosion. After corrosion, the steel bars expand in volume, which can cause the concrete cover to crack or even fall off, thereby reducing the structural load-bearing capacity and durability.

[0003] The patent with authorization announcement number CN220167556U describes a rust prevention device for pre-embedded exposed rebar in building engineering, which includes a base, support feet, and mounting columns. Appropriate sealing rings are installed according to the thickness of the exposed rebar, and appropriate connecting sleeves for vertical beams are installed according to rebars of different lengths. An appropriate amount of rust-preventive liquid can be added to the fixed sleeve and connecting sleeve at appropriate times to reduce the entry of outside air, protect the rebar, and improve the rust prevention effect of the rebar.

[0004] However, the above patents still have the following problems when used: The above patents are fixed by mounting columns. Fixing the mounting columns requires drilling holes in the concrete wall. Drilling holes in the concrete wall will damage the concrete wall and increase the workload, reducing the overall work efficiency. Therefore, in order to solve the above problems, a pre-embedded exposed steel bar protection device is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model overcomes the existing defects and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An embedded exposed rebar protection device includes an outer shell and a fixed shell. The fixed shell is fixedly connected to the top of the outer shell. A clamping block is slidably connected to the inner side of the fixed shell. A movable column is fixedly connected to one end of the clamping block. A guide plate is slidably connected to the outer side of the movable column and is fixedly connected to the fixed shell. An adjustment mechanism is provided at one end of the movable column.

[0008] Preferably, the adjusting mechanism includes a connecting rod fixedly connected to the moving column, a wedge block fixedly connected to the top end of the connecting rod, a threaded ring fixedly connected to the top end of the fixed shell, a rotating cylinder spirally connected to the outer side of the threaded ring, a fixed rod fixedly connected to the inner side of the rotating cylinder, and a wedge ring fixedly connected to the bottom end of the fixed rod, with the wedge ring positioned outside the wedge block.

[0009] Preferably, there are two clamping blocks, which are symmetrically distributed on both sides of the vertical center line of the outer shell.

[0010] Preferably, an adjusting ring is provided at the bottom of the outer shell, and rubber cylinders are fixedly connected to the inner sides of both the outer shell and the adjusting ring. Oil-absorbing cotton is fixedly connected to the inner side of the rubber cylinders, and the rubber cylinders and oil-absorbing cotton on the inner side of the outer shell are of different lengths from those on the inner side of the adjusting ring.

[0011] Preferably, both the bottom end of the outer casing and the bottom end of the adjusting ring are provided with insertion holes, and the top end of the adjusting ring is fixedly connected with a connecting post that matches the insertion hole.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. A protective device for pre-embedded exposed rebar, comprising a connecting rod, a wedge block, a clamping block, a wedge ring, a fixing rod, and a threaded ring. After the outer shell 1 is inserted into the outer side of the pre-embedded rebar, the operator rotates a rotating drum, causing the drum to spiral around the outside of the threaded ring. Simultaneously, the rotating drum rotates along with the wedge ring via the fixing rod, gradually squeezing the wedge block. The wedge block, through the connecting rod and the moving column, clamps the pre-embedded rebar, thus fixing the device to the pre-embedded rebar. This eliminates the need for drilling holes in the concrete wall surface, reducing the workload of the operator and improving overall installation efficiency.

[0014] 2. A protective device for pre-embedded exposed rebar, comprising an outer shell, an adjusting ring, a rubber cylinder, oil-absorbing cotton, and a connecting column, wherein the total length of the outer shell and the adjusting ring is adjusted according to the length of the pre-embedded rebar exposed on the outside, so that the adjusting ring is engaged with the adjacent insertion hole through the connecting column, thereby increasing the overall protection length, thus meeting the needs of pre-embedded rebar of different lengths and improving the overall applicability. Attached Figure Description

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Figure 1 This is a schematic diagram of the overall structure of a pre-embedded exposed steel bar protection device according to the present invention.

[0017] Figure 2 This is a side view of the installation structure of a pre-embedded exposed steel bar protection device according to the present invention.

[0018] Figure 3 This is a schematic diagram of the installation structure of the wedge-shaped block of the pre-embedded exposed steel bar protection device of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the adjusting ring of a pre-embedded exposed steel bar protection device according to the present invention.

[0020] In the diagram: 1. Outer shell; 2. Adjusting ring; 3. Rubber cylinder; 4. Oil-absorbing cotton; 5. Connecting column; 6. Insertion hole; 7. Fixed shell; 8. Guide plate; 9. Moving column; 10. Connecting rod; 11. Wedge block; 12. Clamping block; 13. Wedge ring; 14. Fixed rod; 15. Threaded ring; 16. Rotary drum. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. In order to better illustrate the specific embodiments of the present invention, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size. It is understandable for those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] To make the technical means, creative features, and achieved objectives and effects of this utility model easy to understand, it should be noted in the description of this utility model that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described below in conjunction with specific embodiments.

[0023] Example

[0024] like Figure 1-4As shown, a pre-embedded exposed rebar protection device includes an outer shell 1 and a fixed shell 7. The fixed shell 7 is fixedly connected to the top of the outer shell 1. A clamping block 12 is slidably connected to the inner side of the fixed shell 7. A movable column 9 is fixedly connected to one end of the clamping block 12. A guide plate 8 is slidably connected to the outer side of the movable column 9, and the guide plate 8 is fixedly connected to the fixed shell 7. An adjustment mechanism is provided at one end of the movable column 9.

[0025] As a further improvement to this utility model, such as Figure 2 and Figure 3 As shown, the adjustment mechanism includes a connecting rod 10 fixedly connected to the moving column 9. A wedge block 11 is fixedly connected to the top of the connecting rod 10, and a threaded ring 15 is fixedly connected to the top of the fixed shell 7. A rotating cylinder 16 is spirally connected to the outer side of the threaded ring 15, and a fixing rod 14 is fixedly connected to the inner side of the rotating cylinder 16. A wedge ring 13 is fixedly connected to the bottom end of the fixing rod 14, and the wedge ring 13 is located outside the wedge block 11. After the outer shell 1 is inserted into the outer side of the pre-embedded steel bar, the operator rotates the rotating cylinder 16, causing the rotating cylinder 16 to rotate spirally outside the threaded ring 15. At the same time, the rotating cylinder 16 will also rotate the wedge ring 13 through the fixing rod 14, so that the wedge ring 13 gradually squeezes the wedge block 11, and the wedge block 11 clamps the pre-embedded steel bar through the connecting rod 10 and the moving column 9 with the clamping block 12. Thus, the device is fixed together with the pre-embedded steel bar, eliminating the need to drill holes in the concrete wall surface, reducing the workload of the operators, and improving the overall installation efficiency.

[0026] As a further improvement to this utility model, such as Figure 2 and Figure 3 As shown, there are two clamping blocks 12, which are symmetrically distributed on both sides of the vertical center line of the outer shell 1. The two clamping blocks 12 can improve the stability of clamping.

[0027] As a further improvement to this utility model, such as Figure 1 , Figure 2 and Figure 4 As shown, an adjusting ring 2 is provided at the bottom of the outer shell 1. Rubber cylinders 3 are fixedly connected to the inner sides of both the outer shell 1 and the adjusting ring 2. Oil-absorbing cotton 4 is fixedly connected to the inner side of the rubber cylinder 3. The rubber cylinders 3 and oil-absorbing cotton 4 on the inner side of the outer shell 1 are of different lengths from those on the inner side of the adjusting ring 2. The total length of the outer shell 1 and the adjusting ring 2 is adjusted according to the length of the pre-embedded steel bars exposed on the outside, so that the adjusting ring 2 is engaged with the adjacent insertion hole 6 through the connecting column 5, thereby increasing the overall protection length and meeting the needs of pre-embedded steel bars of different lengths, thus improving the overall applicability.

[0028] As a further improvement to this utility model, such as Figure 2As shown, both the bottom end of the outer shell 1 and the bottom end of the adjusting ring 2 are provided with insertion holes 6. The top end of the adjusting ring 2 is fixedly connected with a connecting post 5 that matches the insertion hole 6. The connecting post 5 can ensure that there is a horizontal offset between adjacent adjusting rings 2.

[0029] Workflow: When protecting exposed embedded steel bars, first adjust the total length of the outer casing 1 and adjusting ring 2 according to the length of the exposed embedded steel bars. The adjusting ring 2 is then engaged with the adjacent insertion hole 6 via the connecting post 5, increasing the overall protection length to accommodate steel bars of different lengths and improving overall applicability. Simultaneously, rust inhibitor is placed inside the oil-absorbing cotton 4. Then, the outer casing 1 and adjusting ring 2, along with the oil-absorbing cotton 4, are gradually fitted over the outside of the embedded steel bar. During insertion, the embedded steel bar will compress the oil-absorbing cotton 4, causing the rust inhibitor inside the oil-absorbing cotton 4 to coat the surface of the embedded steel bar. To prevent the embedded steel bars from contacting the outside air and rusting, after the outer shell 1 is inserted into the outside of the embedded steel bars, the operator rotates the rotating drum 16, causing the rotating drum 16 to spiral around the outside of the threaded ring 15. At the same time, the rotating drum 16 also rotates the wedge ring 13 through the fixed rod 14, causing the wedge ring 13 to gradually squeeze the wedge block 11. The wedge block 11, through the connecting rod 10 and the moving column 9, along with the clamping block 12, clamps the embedded steel bars, thus fixing the device to the embedded steel bars. This eliminates the need to drill holes in the concrete wall surface, reducing the workload of the operators and improving the overall installation efficiency.

[0030] The above are preferred embodiments of the present invention. The basic principles, main features, and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the scope of protection of the present invention. All such changes and modifications fall within the scope of protection of the present invention as defined by the appended claims and their equivalents.

Claims

1. A protective device for pre-embedded exposed reinforcing bars, comprising an outer shell (1) and a fixing shell (7), characterized in that: The top of the outer shell (1) is fixedly connected to a fixed shell (7), and a clamping block (12) is slidably connected to the inner side of the fixed shell (7). A moving column (9) is fixedly connected to one end of the clamping block (12), and a guide plate (8) is slidably connected to the outer side of the moving column (9). The guide plate (8) is fixedly connected to the fixed shell (7), and an adjustment mechanism is provided at one end of the moving column (9).

2. The embedded exposed rebar protection device according to claim 1, characterized in that: The adjustment mechanism includes a connecting rod (10) fixedly connected to the moving column (9). A wedge block (11) is fixedly connected to the top end of the connecting rod (10). A threaded ring (15) is fixedly connected to the top end of the fixed shell (7). A rotating cylinder (16) is spirally connected to the outer side of the threaded ring (15). A fixed rod (14) is fixedly connected to the inner side of the rotating cylinder (16). A wedge ring (13) is fixedly connected to the bottom end of the fixed rod (14), and the wedge ring (13) is located on the outer side of the wedge block (11).

3. The embedded exposed rebar protection device according to claim 1, characterized in that: There are two clamping blocks (12), which are symmetrically distributed on both sides of the vertical center line of the outer shell (1).

4. The embedded exposed rebar protection device according to claim 1, characterized in that: An adjusting ring (2) is provided at the bottom of the outer shell (1). A rubber cylinder (3) is fixedly connected to the inner side of both the outer shell (1) and the adjusting ring (2). An oil-absorbing cotton (4) is fixedly connected to the inner side of the rubber cylinder (3). The rubber cylinder (3) and oil-absorbing cotton (4) on the inner side of the outer shell (1) are of different lengths from those on the inner side of the adjusting ring (2).

5. The embedded exposed rebar protection device according to claim 4, characterized in that: The bottom end of the outer shell (1) and the bottom end of the adjusting ring (2) are both provided with insertion holes (6), and the top end of the adjusting ring (2) is fixedly connected with a connecting post (5) that is compatible with the insertion hole (6).

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