Prefabricated concrete square pile tensioning device

Abstract

The utility model provides a precast concrete square pile tensioning device, and relates to the technical field of concrete square pile tensioning devices, the precast concrete square pile tensioning device comprises a base, the top end of the base is provided with a prestress tensioning machine, one side of the prestress tensioning machine is connected and provided with a connecting piece, one side of the connecting piece is provided with a mounting groove, and the mounting groove is provided with a connecting rod. A set of limiting mechanisms are arranged on the two sides of the mounting groove, a mounting block is mounted in the mounting groove, and one end of the mounting block is connected with a fixing sleeve. According to the device, a handle can be directly pulled to drive a connecting rod and an arc-shaped clamping block to be separated from the interior of a clamping groove, then a fixing sleeve can be disassembled by reversely screwing a mounting block, the operation steps are very simple and convenient, a worker can conveniently and rapidly replace the fixing sleeve according to the thickness of a reinforcing steel bar, the replacement efficiency is indirectly improved, and the practicability is high. And due to the design, the practicability is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of a concrete square pile tensioning device, and more specifically, particularly relates to a prefabricated concrete square pile tensioning device. Background Art

[0002] Prestressed concrete is designed to prevent premature cracking in concrete. Before a component is used (loaded), a preload is applied to the concrete. This means that the steel bars are artificially stretched in the tensile zone of the concrete, using the retractive force of the steel bars to preload the tensile zone. This stored preload first offsets the preload in the tensile zone when the component is subjected to tension from an external load. Then, as the load increases, the concrete is subjected to tension, limiting its elongation and delaying or preventing cracks. This is called prestressed concrete.

[0003] Based on the above, the inventors found that the following problems exist: the existing concrete square pile tensioning device needs to deal with steel bars of different thicknesses in real time during use, but the operating steps for the staff to replace the fixed sleeve are relatively cumbersome and cannot be replaced quickly, which indirectly reduces the use efficiency and is relatively inconvenient.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a precast concrete square pile tensioning device is provided in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose and effect of the precast concrete square pile tensioning device of the present invention are achieved by the following specific technical means:

[0006] The precast concrete square pile tensioning device includes a base, a prestressed tensioning machine is installed on the top of the base, a connecting piece is connected to one side of the prestressed tensioning machine, a mounting groove is opened on one side of the connecting piece, a group of limiting mechanisms are provided on both sides of the mounting groove, a mounting block is installed in the mounting groove, and a fixed sleeve is connected to one end of the mounting block.

[0007] Furthermore, the limiting mechanism includes a connecting rod, a spring is sleeved on the surface of the connecting rod, a limiting block is installed on one side of the connecting rod, an arc-shaped clamping block is installed on one side of the limiting block, and the spring is located on one side of the limiting block.

[0008] Furthermore, a group of handles are connected and installed on the outer walls of both sides of the connecting piece, and one end of the handle passes through the connecting piece to the inside and is connected to the connecting rod.

[0009] Furthermore, a group of slots are formed on the outer wall of the mounting block, and the arc-shaped mounting block is mounted inside the slots.

[0010] Furthermore, one end of the mounting block is provided with a thread 1.

[0011] Furthermore, a second thread is provided on the inner wall of the installation groove, and the first thread is engaged with the second thread.

[0012] Furthermore, a control panel is connected and installed on the top of the base.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] Through the cooperation between the arc-shaped clamping block and the clamping slot, when the staff installs the fixed sleeve according to the thickness of the steel bar, they can first rotate the thread one and the thread two to achieve pre-fixation. After the installation block is tightened, the arc-shaped clamping block will automatically be clamped into the inside of the clamping slot under the action of the spring. The operation steps are very simple. When the fixed sleeve needs to be replaced, the staff can directly pull the handle to drive the connecting rod and the arc-shaped clamping block to disengage from the inside of the clamping slot, and then reversely twist the installation block to remove the fixed sleeve. The operation steps are very simple, which makes it convenient for the staff to quickly replace the fixed sleeve according to the thickness of the steel bar, indirectly improving the replacement efficiency, and this design greatly increases practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the precast concrete square pile tensioning device of the utility model.

[0016] Figure 2 It is a three-dimensional schematic diagram of the assembly of the precast concrete square pile tensioning device of the utility model.

[0017] Figure 3 It is a schematic planar cross-sectional view of the local structure of the precast concrete square pile tensioning device of the utility model.

[0018] Figure 4 This is a new precast concrete pile tensioning device Figure 3 Enlarged schematic diagram of point A in the middle.

[0019] In the figure, the corresponding relationship between component names and drawing numbers is as follows:

[0020] 1. Base; 2. Control panel; 3. Prestressed tensioning machine; 4. Connector; 5. Fixed sleeve; 6. Thread 1; 7. Slot; 8. Spring; 9. Mounting block; 10. Handle; 11. Mounting slot; 12. Thread 2; 13. Arc-shaped block; 14. Connecting rod; 15. Limit block. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] Example:

[0025] As attached Figure 1 To the attached Figure 4 As shown:

[0026] The utility model provides a precast concrete square pile tensioning device, comprising a base 1, a prestressed tensioning machine 3 is installed on the top of the base 1, a connecting member 4 is connected and installed on one side of the prestressed tensioning machine 3, a mounting groove 11 is opened on one side of the connecting member 4, a group of limiting mechanisms are provided on both sides of the mounting groove 11, a mounting block 9 is installed in the mounting groove 11, and a fixed sleeve 5 is connected and installed on one end of the mounting block 9.

[0027] Among them, the limiting mechanism includes a connecting rod 14, the surface of the connecting rod 14 is provided with a spring 8, a limiting block 15 is installed on one side of the connecting rod 14, an arc-shaped clamping block 13 is installed on one side of the limiting block 15, and the spring 8 is located on one side of the limiting block 15.

[0028] A set of handles 10 are connected and installed on the outer walls of both sides of the connecting member 4 , and one end of the handle 10 passes through the connecting member 4 to the inside and is connected to the connecting rod 14 .

[0029] Among them, the outer wall of the mounting block 9 is provided with a group of slots 7, and the arc-shaped block 13 is installed in the inside of the slots 7; through the cooperation between the arc-shaped block 13 and the slots 7, when the staff installs the fixed sleeve 5 according to the thickness of the steel bar, they can first rotate and connect the thread 1 6 and the thread 2 12 to achieve pre-fixation. After the mounting block 9 is tightened, the arc-shaped block 13 will automatically fit into the inside of the slot 7 under the action of the spring 8. The operation steps are very simple. When the fixed sleeve 5 needs to be replaced, the staff can directly pull the handle 10 to drive the connecting rod 14 and the arc-shaped block 13 to disengage from the inside of the slot 7, and then reversely twist the mounting block 9 to remove the fixed sleeve 5. The operation steps are very simple, which is convenient for the staff to quickly replace the fixed sleeve 5 according to the thickness of the steel bar, indirectly improving the replacement efficiency, and the design greatly increases practicality.

[0030] One end of the mounting block 9 is provided with a thread 6 .

[0031] The inner wall of the installation groove 11 is provided with a second thread 12 , and the first thread 6 is engaged with the second thread 12 .

[0032] Wherein, a control panel 2 is connected and installed on the top of the base 1.

[0033] The specific usage and function of this embodiment are as follows:

[0034] When the fixing sleeve 5 needs to be replaced, the staff can directly pull the handle 10 to drive the connecting rod 14 and the arc block 13 to disengage from the inside of the slot 7, and then reversely twist the installation block 9 to disassemble the fixing sleeve 5. The operation steps are very simple, which makes it convenient for the staff to quickly replace the fixing sleeve 5 according to the thickness of the steel bar, indirectly improving the replacement efficiency, and the design greatly increases the practicality. If it needs to be used again, just repeat the above operation.

[0035] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A precast concrete square pile tensioning device, comprising a base (1), characterized in that: A prestressed tensioning machine (3) is installed at the top of the base (1), a connecting piece (4) is connected and installed on one side of the prestressed tensioning machine (3), a mounting groove (11) is provided on one side of the connecting piece (4), a group of limiting mechanisms are provided on both sides of the mounting groove (11), a mounting block (9) is installed in the mounting groove (11), and a fixed sleeve (5) is connected and installed on one end of the mounting block (9).

2. The precast concrete square pile tensioning device according to claim 1, characterized in that: The limiting mechanism comprises a connecting rod (14), a spring (8) is sleeved on the surface of the connecting rod (14), a limiting block (15) is installed on one side of the connecting rod (14), an arc-shaped clamping block (13) is installed on one side of the limiting block (15), and the spring (8) is located on one side of the limiting block (15).

3. The precast concrete square pile tensioning device according to claim 2, characterized in that: A set of handles (10) are connected and installed on the outer walls of both sides of the connecting member (4), and one end of the handle (10) passes through the connecting member (4) to the inside and is connected to the connecting rod (14).

4. The precast concrete square pile tensioning device according to claim 2, characterized in that: A group of slots (7) are formed on the outer wall of the mounting block (9), and the arc-shaped mounting block (13) is mounted inside the slots (7).

5. The precast concrete square pile tensioning device according to claim 1, characterized in that: One end of the mounting block (9) is provided with a thread (6).

6. The precast concrete square pile tensioning device according to claim 5, characterized in that: The inner wall of the installation groove (11) is provided with a second thread (12), and the first thread (6) is engaged with the second thread (12).

7. The precast concrete square pile tensioning device according to claim 1, characterized in that: A control panel 2 () is connected and installed on the top of the base (1).

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