A steel bar protection device for broken pile head
By designing a steel bar protection device including a centrifugal vibration motor and a fixing device, the problem of the inability to efficiently remove concrete blocks on the surface of the steel bar in the prior art is solved, and the effect of efficient peeling of concrete and protecting steel bars is achieved.
Patent Information
- Application Number
- CN202421775873.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The prior art cannot efficiently remove concrete blocks on the surface of the steel bar during the pile head breaking process, resulting in the steel bar being easily damaged.
A steel bar protection device including an outer shell, a centrifugal vibration motor and a fixing device is designed. Vibration is generated by the centrifugal vibration motor, transmitted to the steel bars, and the concrete blocks are peeled off.
It effectively reduces the operating time of the pile head breaking process, improves the working efficiency, avoids damage to the steel bars, and does not need to cut the pile head directly like in the prior art, avoiding the risk of the steel bars being cut.
Smart Images
Figure CN222730541U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of steel bar protection devices, in particular to a steel bar protection device for a broken pile head. Background Art
[0002] Pile head breaking is the process of pouring piles. In order to ensure the strength of the pile head concrete, the pile top elevation will be higher than the designed pile top by a certain distance (usually 0.5 to 1.0m). However, the part higher than the designed pile top elevation needs to be chiseled off in the subsequent construction. This process of chiseling off the pile head concrete is called "pile head breaking". The steps of pile head breaking usually include: first, mark the part of the pile head that needs to be broken with red paint, then use a cutting machine to cut a circle along the mark, and then use a pneumatic pick or similar tools to break the surrounding concrete until the steel bars are completely stripped off;
[0003] As mentioned above, the existing process cannot peel off the concrete blocks attached to the surface of the steel bars, and manual knocking is required to break the concrete attached to the steel bars, which makes it easy for the steel bars to be knocked crooked or broken during the knocking process. Therefore, a device is needed that can peel off the concrete blocks attached to the surface of the steel bars to protect the steel bars. Utility Model Content
[0004] The utility model provides a reinforcement protection device for a broken pile head, which overcomes the shortcomings described in the background technology.
[0005] The technical solution adopted by the utility model to solve its technical problem is:
[0006] A steel bar protection device for a broken pile head, comprising an outer shell, a centrifugal vibration motor, and a fixing device, wherein the centrifugal vibration motor is installed in the outer shell, and one end of the fixing device is movably installed on the side of the outer shell, and the other end is sleeved outside the steel bar;
[0007] The fixing device includes a threaded sleeve and a steel sleeve. A threaded rod is provided on the side of the steel sleeve. The threaded sleeve is sleeved outside the threaded rod and forms a threaded connection with the threaded rod. An adjustment groove for sliding the threaded sleeve is provided on the side of the outer shell, and a corresponding protrusion is provided on the threaded sleeve, which is embedded in the adjustment groove.
[0008] A preferred technical solution: the cross-section of the regulating chute is arc-shaped and extends along the edge contour of the outer shell. The regulating chute is connected to the outside through a plurality of chip removal openings arranged equidistantly, and the chip removal openings are arranged in a downwardly inclined state.
[0009] A preferred technical solution: There are two centrifugal vibration motors, and the two centrifugal vibration motors have the same power and the same vibration frequency.
[0010] A preferred technical solution: A fixing plate is provided on the side of the outer shell, and the fixing plate has a plurality of threaded holes, and the outer shell is fixed by passing bolts through the threaded holes and driving them into the pile heads;
[0011] A plurality of conical embedded blocks are arranged equidistantly at the lower end of the outer shell. The conical embedded blocks are in a conical structure, and one end with a small diameter is arranged downward.
[0012] Compared with the prior art, this technical solution has the following advantages:
[0013] In the present invention, after most of the concrete blocks are peeled off and broken, the steel bar protection device of the present invention can be started, and strong vibrations are generated by two centrifugal vibration motors. The vibrations are transmitted to the steel bars through the outer shell and the fixing device, and the concrete blocks on the steel bars are peeled off with the vibration, and some concrete blocks that have not been completely peeled off can also be removed by manual knocking, without the need to directly cut the entire pile head with a cutting machine when breaking the pile head as in the prior art. The process of breaking the pile head in the prior art will cut off the steel bars in the pile head together, so that when the concrete is poured again later, the steel bars need to be reinserted to ensure the stability of the poured building components. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0016] Figure 2 A half-section schematic diagram of the outer shell.
[0017] Figure 3 A half-section diagram of the adjusting slide and the fixing device.
[0018] Figure 4 for Figure 1 Front view schematic diagram.
[0019] In the figure: outer shell 1, adjusting chute 11, chip discharge port 111, fixing plate 12, conical embedded block 13;
[0020] Centrifugal vibration motor 2;
[0021] Fixing device 3 , threaded sleeve 31 , raised portion 311 , steel sleeve 32 , threaded rod 321 . DETAILED DESCRIPTION
[0022] like Figure 1-Figure 4As shown, a steel bar protection device for breaking pile heads comprises an outer shell 1, a centrifugal vibration motor 2, and a fixing device 3. The centrifugal vibration motor 2 is installed in the outer shell 1, and one end of the fixing device 3 is movably installed on the side of the outer shell 1, and the other end is sleeved outside the steel bar. When the device in the present invention is used, it is installed on the pile head and connected to the steel bar through the fixing device 3, so that the centrifugal vibration motor 2 can transmit the vibration to the connected steel bar through the outer shell 1 and the fixing device 3 while generating vibration, so that the stones attached to the surface of the steel bar are peeled off and broken, thereby playing a protective role for the steel bar. When using the steel bar protection device, it is necessary to manually cut part of the concrete above the pile head to expose the steel bar in the pile head to the air, and then install the fixing device 3 to the outside of the steel bar to form a fixation;
[0023] Based on the above-mentioned usage method, after installing the steel bar protection device of the present invention, the construction personnel can manually break the remaining concrete blocks on the pile head, peel off the larger concrete blocks, and only leave the smaller block-shaped concrete blocks attached to the steel bars. Such operation can effectively reduce the operation time of the pile head breaking process and improve the operation efficiency. Figure 1 As shown, the number of the centrifugal vibration motors 2 is set to two, and the power and vibration frequency of the two centrifugal vibration motors 2 are consistent. After most of the concrete blocks are peeled off and broken, the steel bar protection device of the present invention can be started, and strong vibrations are generated by the two centrifugal vibration motors 2. The vibrations are transmitted to the steel bars through the outer shell 1 and the fixing device 3, and the concrete blocks on the steel bars are peeled off with the vibration, and some concrete blocks that have not been completely peeled off can also be removed by manual knocking, without the need to directly cut the entire pile head with a cutting machine when breaking the pile head as in the prior art. The process of breaking the pile head in the prior art will cut off the steel bars in the pile head together, so that when the concrete is re-poured later, the steel bars need to be re-inserted to ensure the stability of the cast building components.
[0024] The fixing device 3 includes a threaded sleeve 31 and a steel sleeve 32. A threaded rod 321 is provided on the side of the steel sleeve 32. The threaded sleeve 31 is sleeved outside the threaded rod 321 and is threadedly connected with the threaded rod 321. An adjustment slot 11 is provided on the side of the outer shell 1 for the threaded sleeve 31 to slide. The threaded sleeve 31 has a corresponding protrusion 311, which is embedded in the adjustment slot 11. When in use, the steel sleeve 32 is extended outward from the threaded sleeve 31 by rotating it. After adjusting it to a suitable position, the steel sleeve 32 is sleeved outside the steel bar to form a fixation. When the centrifugal vibration motor 2 is working, the vibration is transmitted to the steel bar through the steel sleeve 32.
[0025] Furthermore, the cross-section of the adjusting groove 11 is arc-shaped and extends along the edge contour of the outer shell 1. The adjusting groove 11 is connected to the outside through a plurality of chip removal openings 111 arranged equidistantly. The chip removal openings 111 are arranged in a downwardly inclined shape. This arrangement is to facilitate the adjustment of the position of the threaded sleeve 31 on the adjusting groove 11. Since the position of the steel bar in the pile head is uncertain, it is necessary to adjust the position of the fixing device 3 so that it can be accurately sleeved outside the steel bar to form a fixation.
[0026] In addition, a fixing plate 12 is provided on the side of the outer shell 1, and the fixing plate 12 has a plurality of threaded holes. The outer shell 1 is fixed by passing bolts through the threaded holes and driving them into the pile heads. A plurality of conical embedded blocks 13 are arranged equidistantly at the lower end of the outer shell 1. The conical embedded blocks 13 are in a conical structure with a small-diameter end facing downward. When fixed by means of locking bolts, the conical embedded blocks 13 will be embedded in or against the surface of the pile head to further improve the fixation of the outer shell 1 and the conductivity of vibration.
[0027] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of implementation of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope covered by the present invention.
Claims
1. A steel bar protection device for a broken pile head, characterized in that: It comprises an outer shell (1), a centrifugal vibration motor (2), and a fixing device (3), wherein the centrifugal vibration motor (2) is installed in the outer shell (1), and one end of the fixing device (3) is movably installed on the side of the outer shell (1), and the other end is sleeved outside the steel bar; The fixing device (3) comprises a threaded sleeve (31) and a steel sleeve (32); a threaded rod (321) is provided on the side of the steel sleeve (32); the threaded sleeve (31) is sleeved outside the threaded rod (321) and is threadedly connected to the threaded rod (321); an adjusting groove (11) for the threaded sleeve (31) to slide is provided on the side of the outer shell (1); and a corresponding protrusion (311) is provided on the threaded sleeve (31) and is embedded in the adjusting groove (11).
2. A steel bar protection device for a broken pile head according to claim 1, characterized in that: The cross section of the regulating chute (11) is arc-shaped and extends along the edge contour of the outer shell (1); the regulating chute (11) is connected to the outside through a plurality of chip removal openings (111) arranged at equal intervals; the chip removal openings (111) are arranged in a downwardly inclined manner.
3. A reinforcement protection device for a broken pile head according to claim 2, characterized in that: The number of the centrifugal vibration motors (2) is set to be two, and the two centrifugal vibration motors (2) have the same power and the same vibration frequency.
4. A reinforcement protection device for a broken pile head according to claim 3, characterized in that: A fixing plate (12) is provided on the side of the outer shell (1), and a plurality of threaded holes are provided on the fixing plate (12). The outer shell (1) is fixed by passing bolts through the threaded holes and driving them into pile heads; A plurality of conical embedded blocks (13) are arranged at equal intervals at the lower end of the outer shell (1); the conical embedded blocks (13) are in a conical structure, with the small-diameter end being arranged downward.