Column base anchor bolt nut installation sleeve

Abstract

This utility model relates to a column base anchor bolt nut installation sleeve, which includes a sleeve rod. The first end of the sleeve rod has a nut sleeve, and the second end of the sleeve rod has a connector. An anchor bolt receiving cavity is provided inside the sleeve rod, and a positioning sleeve is slidably disposed within the anchor bolt receiving cavity. This utility model enables quick nut installation and facilitates control by construction personnel, effectively improving the installation efficiency and effect of column base anchor bolt nuts.

Description

Technical Field

[0001] This utility model relates to the technical field of nut installation equipment, and in particular to a column anchor bolt nut installation sleeve. Background Technology

[0002] Column base anchors are fasteners specifically designed to secure the base of building columns. They are typically made of high-strength steel, possessing strong tensile and shear resistance. Column base anchors require precise alignment with pre-drilled holes in the concrete foundation, achieving a secure hold through concrete pouring or other fixing methods.

[0003] Currently, when installing nuts on column anchor bolts, construction workers typically need to manually install them. However, during the anchor bolt pre-embedding and re-testing stages, the anchor bolt threads are prone to rusting, and the protective tape on the threads is difficult to clean thoroughly. This leads to installation difficulties and even failures to install the bolts. In such cases, construction workers usually use an angle grinder and wire brush to grind the threads before using an open-end wrench to install the nuts, resulting in low overall construction efficiency. Therefore, construction workers weld electric wrench sockets to both ends of the steel pipe, creating a self-made extended socket, and then use an electric wrench or pneumatic wrench to quickly install the nuts.

[0004] The existing technology has at least the following problems: First, rust and tape will force workers to grind the column base anchor bolts, which will increase the construction time and affect the construction efficiency; second, because the column base anchor bolts are very long, it is inefficient for construction workers to manually install nuts using open-end wrenches; third, the welded joints of the steel pipe and sleeve are prone to breakage and detachment, resulting in a short service life, and the welding fixing method leads to low concentricity between the sleeve and the steel pipe, causing serious head swing during use, and making it inconvenient for construction workers to control electric wrenches or pneumatic wrenches. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by developing a column anchor bolt nut installation sleeve. This invention enables quick nut installation and facilitates control by construction personnel, effectively improving the installation efficiency and effect of column anchor bolt nuts.

[0006] The technical solution of this utility model to solve the technical problem is as follows: a column anchor bolt nut installation sleeve, including a sleeve rod, a nut sleeve at the first end of the sleeve rod, a connector at the second end of the sleeve rod, an anchor bolt receiving cavity inside the sleeve rod, and a positioning sleeve slidably disposed inside the anchor bolt receiving cavity.

[0007] As an optimization, the bottom of the positioning sleeve is provided with a positioning groove. By setting the positioning groove, it can be aligned with the top of the column base anchor bolt.

[0008] As an optimization, a sliding sleeve is provided on the outer side of the positioning sleeve, and the sliding sleeve is clearance-fitted with the side wall of the anchor bolt receiving cavity. By providing the sliding sleeve, the positioning sleeve can be protected when the sleeve rod rotates and slides up and down.

[0009] As an optimization, the positioning sleeve can be made of any one of rubber, polyurethane, or silicone.

[0010] As an optimization, a bearing is provided on the outer side of the positioning sleeve. The outer ring of the bearing has a clearance fit with the side wall of the anchor bolt receiving cavity, while the inner ring of the bearing has an interference fit with the positioning sleeve. By setting the bearing, it can slide up and down within the anchor bolt receiving cavity, and the positioning sleeve will not affect the rotation of the sleeve rod.

[0011] As an optimization, the connector is provided with an annular groove, within which are two sets of coaxial mounting holes. By providing the annular groove and mounting holes, the connector can be mated with an electric wrench or pneumatic wrench, allowing the wrench or pneumatic wrench to rotate the socket rod and nut sleeve, thereby installing the nut.

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

[0013] By incorporating a sleeve rod and an anchor bolt receiving cavity, longer anchor bolts can be accommodated, facilitating the tightening of the nut from the top to the bottom of the anchor bolt. A nut sleeve allows for docking with the nut. A connector facilitates connection with an electric wrench or pneumatic wrench. The sleeve rod, nut sleeve, and connector are integrally molded, preventing breakage or detachment and ensuring a long service life. A positioning sleeve is installed on top of the anchor bolt, filling the gap between the top of the anchor bolt and the inner wall of the sleeve rod, improving the concentricity of the anchor bolt and sleeve rod, reducing the risk of the electric wrench or pneumatic wrench swinging during installation, and facilitating control by construction personnel. This invention enables rapid nut installation and facilitates control by construction personnel, effectively improving the installation efficiency and effect of column base anchor bolt nuts. Attached Figure Description

[0014] Figure 1 This is a front view of the first embodiment of the present utility model.

[0015] Figure 2 This is a cross-sectional view of the first embodiment of the present invention.

[0016] Figure 3 This is a cross-sectional view of the second embodiment of the present invention.

[0017] In the diagram: 1. Sleeve rod; 2. Nut sleeve; 3. Connector; 4. Anchor bolt receiving cavity; 5. Positioning sleeve; 6. Positioning groove; 7. Sliding sleeve; 8. Bearing; 9. Annular groove; 10. Mounting hole. Detailed Implementation

[0018] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0019] Example 1

[0020] Figure 1 and Figure 2 As one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, a column anchor bolt nut mounting sleeve includes a sleeve rod 1, a nut sleeve 2 at the first end of the sleeve rod 1, a connector 3 at the second end of the sleeve rod 1, an anchor bolt receiving cavity 4 inside the sleeve rod 1, and a positioning sleeve 5 slidably disposed inside the anchor bolt receiving cavity 4.

[0021] By setting up the sleeve rod 1 and the anchor bolt receiving cavity 4, a space can be provided for long anchor bolts. When the nut is turned from the top to the bottom of the anchor bolt, the anchor bolt can be fully inserted into the cavity, avoiding the problem of the sleeve not being able to be put on or the operation being obstructed due to the anchor bolt being too long, and realizing continuous turning "from top to bottom". By setting up the nut sleeve 2, it can be connected to the nut. By setting up the connector 3, it is convenient to connect with the electric wrench or pneumatic wrench. The sleeve rod 1, nut sleeve 2 and connector 3 are integrally formed, so there will be no breakage or falling off, and the service life is long. By setting up the positioning sleeve 5, it can be installed on the top of the anchor bolt, filling the gap between the top of the anchor bolt and the inner wall of the sleeve rod 1, which greatly eliminates the radial gap between the anchor bolt and the sleeve rod 1. The gap can be controlled within 0.5mm, improving the concentricity of the anchor bolt and the sleeve rod 1, reducing the head swing of the electric wrench or pneumatic wrench during installation, and making it convenient for construction personnel to control.

[0022] The positioning sleeve 5 has a positioning groove 6 at the center of its bottom. The longitudinal section of the positioning groove 6 can be any one of a rectangle, a cone, or an isosceles trapezoid. By setting the positioning groove 6, it can be connected to the top of the column base anchor bolt.

[0023] The outer side of the positioning sleeve 5 is provided with a sliding sleeve 7, and the bottom of the positioning sleeve 5 is provided with retaining rings around its perimeter. The retaining rings abut against the bottom of the sliding sleeve 7, and the sliding sleeve 7 is clearance-fitted with the side wall of the anchor bolt receiving cavity 4. By providing the sliding sleeve 7, the positioning sleeve 5 can be protected when the sleeve rod 1 rotates and slides up and down, and the direct friction between the positioning sleeve 5 and the anchor bolt receiving cavity 4 can be isolated, thus preventing the positioning sleeve 5 from affecting concentricity due to wear and deformation.

[0024] The positioning sleeve 5 can be made of any one of rubber, polyurethane, or silicone.

[0025] The connector 3 is provided with an annular groove 9, and two sets of coaxial mounting holes 10 are provided in the annular groove 9. By providing the annular groove 9 and mounting holes 10, the connector 3 can be connected with an electric wrench or a pneumatic wrench, so that the electric wrench or pneumatic wrench can drive the socket rod 1 and the nut sleeve 2 to rotate, thereby installing the nut.

[0026] Example 2

[0027] Figure 3This is the second embodiment of the present invention, which differs from the first embodiment in that a bearing 8 is provided on the outer side of the positioning sleeve 5. The outer ring of the bearing 8 is clearance-fitted with the side wall of the anchor bolt receiving cavity 4, with a clearance of 0.05-0.1 mm. The inner ring of the bearing 8 is interference-fitted with the positioning sleeve 5, and the retaining ring abuts against the bottom of the inner ring of the bearing 8. By setting the bearing 8, the positioning sleeve 5 can slide smoothly within the sleeve rod 1 and remain relatively stationary when the sleeve rod 1 rotates at high speed, avoiding the frictional resistance between the positioning sleeve 5 and the sleeve rod 1 from affecting the rotation efficiency, and further reducing the wear of the positioning sleeve 5.

[0028] During use, construction workers position the connector 3 using the annular groove 9, and then use bolts or pins to pass through the mounting hole 10 to fix the connector 3 to the pneumatic wrench, checking the connection's firmness. The nut sleeve 2 is then fitted onto the nut to be installed, and the pneumatic wrench is used to initially install the nut onto the column anchor bolt, exposing the top of the anchor bolt. Next, the positioning sleeve 5 is installed into the inner ring of the sliding sleeve 7 or bearing 8, and the positioning groove 6 of the positioning sleeve 5 is aligned with the top of the anchor bolt. It should be noted that the positioning groove 6 and the top of the anchor bolt are an interference fit. Finally, the nut sleeve 2 is fitted onto the nut; at this point, the positioning sleeve 5 is in the sliding sleeve... The nut slides into the anchor bolt receiving cavity 4 under the action of bearing 7 or bearing 8. The construction personnel restart the pneumatic hammer, and the sleeve rod 1 drives the nut sleeve 2 to rotate. The nut moves downward along the threads of the column base anchor bolt, and the sleeve rod 1 moves downward to fit onto the column base anchor bolt. If the sliding sleeve 7 is used, the sliding sleeve 7 slides along the cavity wall of the anchor bolt receiving cavity 4 to isolate friction; if the bearing 8 is used, the outer ring of the bearing 8 rotates with the sleeve, while the inner ring remains stationary with the positioning sleeve 5, achieving resistance-free sliding. After the nut is installed in place, the pneumatic hammer is turned off, the sleeve rod 1 is lifted in the opposite direction, and then the positioning sleeve 5 is disengaged from the top of the column base anchor bolt. This utility model can quickly install the nut and is convenient for construction personnel to control, effectively improving the installation efficiency and effect of the column base anchor bolt nut.

[0029] The descriptions of the orientation or relative positional relationships of the structure in this utility model, such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer", are based on the orientation or positional relationships 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 structure 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.

Claims

1. A column anchor nut mounting sleeve comprising a sleeve shaft (1), a nut sleeve (2) is arranged at the first end of the sleeve shaft (1), a connector (3) is arranged at the second end of the sleeve shaft (1), characterized in that: The sleeve rod (1) is provided with an anchor bolt receiving cavity (4), and a positioning sleeve (5) is slidably provided in the anchor bolt receiving cavity (4).

2. A sills anchor nut mounting sleeve according to claim 1 characterised in that: The bottom of the positioning sleeve (5) is provided with a positioning groove (6).

3. The column anchor nut mounting sleeve of claim 1, wherein: The outer side of the positioning sleeve (5) is provided with a sliding sleeve (7), and the sliding sleeve (7) and the side wall of the anchor bolt receiving cavity (4) are in clearance fit.

4. The column base anchor bolt nut mounting sleeve according to claim 3, characterized in that: The positioning sleeve (5) can be any one of rubber, polyurethane, or silicone.

5. The column anchor nut mounting sleeve of claim 1, wherein: The outer side of the positioning sleeve (5) is provided with a bearing (8). The outer ring of the bearing (8) and the side wall of the anchor bolt receiving cavity (4) are in clearance fit, and the inner ring of the bearing (8) and the positioning sleeve (5) are in interference fit.

6. A shoe anchor nut mounting sleeve according to any one of claims 1 to 5, characterised in that: The connector (3) is provided with an annular groove (9), and two sets of coaxial mounting holes (10) are provided in the annular groove (9).

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