A positioning tool for a steel column embedded part

Abstract

The utility model discloses a kind of steel column preformed part positioning tool, belong to steel column preformed part construction technical field, the device is positioned by installing swing arm on frame, and positioning clamping insert bar is realized by being set on swing arm Insert bar positioning, in the construction process of steel column preformed part, only need to place frame to preset position, ensure the position accuracy of frame, can be realized insert bar positioning by swing arm on frame, ensure that the position deviation of finally shaped steel column preformed part is in reasonable range, improve installation accuracy, simultaneously, after insert bar bundling is completed, frame can ascend and leave current position, swing arm can rotate and avoid hoop in ascending process, so that overall tool can be repeatedly used, positioning to insert bar can be realized in early stage, simultaneously, it does not affect the erection of pouring formwork and the pouring of concrete in later period.

Description

Technical Field

[0001] This utility model relates to the field of construction technology of steel column embedded parts, specifically a positioning tool for steel column embedded parts. Background Technology

[0002] In current large-scale building construction, various large-section support columns, such as large-section steel columns, are widely used in the main load-bearing structure of buildings. Before installation, large-section columns need to have embedded parts installed.

[0003] In existing construction techniques, the positioning of embedded parts is only done by instruments for positioning and marking. During the installation process, it is done manually by workers, which may cause a large deviation in the installation position of the embedded parts.

[0004] like Figure 1 As shown, the embedded parts of the steel column need to be pre-embedded with reinforcing bars. The reinforcing bars serve as a three-dimensional positioning reference for the steel column, ensuring that the axis of the steel column coincides with the design position. At the same time, the reinforcing bars can also bear the transmission of axial force and bending moment of the steel column.

[0005] When installing reinforcing bars, it is necessary to ensure that the verticality deviation is ≤5mm / m, the planar position deviation is ≤±10mm, and the spacing deviation between adjacent reinforcing bars is ≤±15mm. However, in the traditional manual operation process, the reinforcing bars are easily misaligned, making it difficult to ensure that the installation accuracy of the reinforcing bars meets the design requirements. This not only affects the positional accuracy of the embedded parts of the steel column, but also requires the reinforcing bars to be corrected in subsequent processes, affecting the construction process.

[0006] Based on this, this utility model designs a positioning fixture for embedded steel column parts to solve the above problems. Utility Model Content

[0007] This invention provides a positioning fixture for embedded steel column components to solve the technical problem that manual operation in existing construction techniques makes it difficult to ensure the installation accuracy of reinforcing bars in embedded steel column components.

[0008] According to one aspect of the present invention, a positioning fixture for a pre-embedded steel column is provided for positioning reinforcing bars, comprising a frame and a swing arm; the frame is supported on the ground, and a working chamber is formed in the middle of the frame, which is used for the construction of the pre-embedded steel column; the frame is provided with a plurality of swing arms, each swing arm at least partially penetrating the working chamber, and a positioning hole is provided at one end of the swing arm facing the working chamber (11), the positioning hole being used to clamp the outer surface of the reinforcing bar to position the reinforcing bar, the arrangement of the plurality of swing arms matching the arrangement of the reinforcing bars in the pre-embedded steel column, so that the plurality of swing arms correspond one-to-one with the plurality of reinforcing bars; the positioning hole penetrates the swing arm vertically and simultaneously penetrates the side of the swing arm facing the working chamber, and the swing arm is rotatably mounted on the frame along a horizontal axis, the swing arm being used to rotate along the horizontal axis to a state of engaging with or disengaging from the reinforcing bar.

[0009] As a further embodiment of this utility model, the bottom end of the frame is provided with a angular hole in the horizontal direction, and the opening width of the angular hole matches the diameter of the insert bar. The angular hole is used to allow the bent part at the bottom end of the insert bar to be inserted to position the angular direction of the insert bar. The angular hole is connected to the bottom surface of the frame in the vertical direction so that the insert bar can be disengaged from the bottom of the angular hole.

[0010] As a further embodiment of this utility model, the frame includes an upper frame for mounting the swing arm, a lower frame for supporting it on the ground, and a bracket for fixing the upper frame and the lower frame together.

[0011] As a further embodiment of this utility model, a chamfer structure is provided on the upper side of the end face of the positioning card hole near the frame. The chamfer structure is used to avoid the insert rib when the swing arm rotates.

[0012] As a further embodiment of this utility model, a retaining component is provided on the swing arm or the frame, the retaining component being used to keep the swing arm in the position of the positioning rib when the swing arm is not subjected to external force.

[0013] As a further embodiment of this utility model, the retaining component includes a counterweight block fixed to the bottom end of the swing arm.

[0014] As a further embodiment of this utility model, the retaining component includes a spring fixed to the frame, and the free end of the spring is fixedly connected to the swing arm.

[0015] As a further embodiment of this utility model, the frame is provided with a vertical through-frame mounting hole, and a positioning post is inserted into the mounting hole. The positioning post is used to insert into the ground to limit the frame in the horizontal direction.

[0016] As a further embodiment of this utility model, the height of the positioning post is not less than the height of the insert bar.

[0017] As a further embodiment of this utility model, an end cap is detachably installed on the top of the positioning post.

[0018] This utility model has the following beneficial effects:

[0019] This device positions the reinforcing bars by installing a swing arm on a frame and clamping the swing arm with positioning holes. During the construction of the embedded steel column, the frame only needs to be placed in the preset position to ensure its accuracy. The swing arm on the frame can then position the reinforcing bars, ensuring that the positional deviation of the final embedded steel column is within a reasonable range, thus improving installation accuracy. At the same time, after the reinforcing bars are tied, the frame can be raised away from its current position. During the raising process, the swing arm can rotate to avoid the stirrups, allowing the entire tooling to be reused. It can achieve the positioning of the reinforcing bars in the early stage without affecting the erection of the pouring formwork and the pouring of concrete in the later stage.

[0020] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0022] Figure 1 A schematic diagram of the reinforcing bars inserted into the pre-embedded parts of a steel column;

[0023] Figure 2 This is a top view of the overall structure of this utility model;

[0024] Figure 3 This is a side view of the overall structure of this utility model;

[0025] Figure 4 This is a schematic diagram showing the positioning of the insert rib in this utility model;

[0026] Figure 5 This is a first example schematic diagram of the retaining component in this utility model;

[0027] Figure 6 This is a second example schematic diagram of the retaining component in this utility model;

[0028] Figure 7 This is a cross-sectional structural diagram of the swing arm in this utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the mid-end cap of this utility model.

[0030] Legend:

[0031] 1. Frame; 11. Working chamber; 12. Corner hole; 13. Upper frame; 14. Lower frame; 15. Bracket; 16. Mounting hole; 17. Positioning post; 18. End cap; 2. Swing arm; 21. Positioning clip hole; 22. Counterweight; 23. Spring. Detailed Implementation

[0032] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0033] Please see Figure 1-8 This utility model provides a technical solution: a positioning fixture for embedded steel column components, used to position the reinforcing bars to reduce the positional deviation of the embedded components during construction, including a frame 1 and a swing arm 2;

[0034] The frame 1 is used to support the ground, and a vertically penetrating working chamber 11 is formed in the middle of the frame 1. The working chamber 11 is used for the construction of steel column embedded parts. The frame 1 is placed on the ground to enclose an area on the ground for the construction of steel column embedded parts.

[0035] The frame 1 is provided with multiple swing arms 2, which at least partially penetrate into the working chamber 11. The end of the swing arm 2 facing the working chamber 11 is provided with a positioning hole 21. The width of the positioning hole 21 matches the diameter of the reinforcing bar and is used to clamp the reinforcing bar on the outer surface to position the reinforcing bar. The arrangement of the multiple swing arms 2 matches the arrangement of the reinforcing bars in the steel column pre-embedded parts, so that the multiple swing arms 2 and the multiple reinforcing bars correspond one-to-one. After the frame 1 is placed on the ground, the construction of the steel column pre-embedded parts can begin. During construction, the reinforcing bars are positioned by the swing arms 2 on the frame 1 to ensure the accurate position of the reinforcing bars, thereby ensuring the accurate position of the final steel column pre-embedded parts.

[0036] The positioning hole 21 penetrates the swing arm 2 vertically and also passes through the side of the swing arm 2 facing the working chamber 11. The swing arm 2 is rotatably mounted on the frame 1 along the horizontal axis. The swing arm 2 is used to rotate along the horizontal axis to either engage with or disengage from the insert bar. After the insert bar is tied, a stirrup will be horizontally wrapped around it. When the frame 1 is raised and moved away after the insert bar is tied, the upward path of the swing arm 2 will be interfered with by the stirrup. Figures 5-6 As shown, when the swing arm 2 is rotated on the frame 1 along the horizontal axis, it can rotate downward when it comes into contact with the stirrup during the upward process. This causes the end of the swing arm 2 with the positioning hole 21 to move away from the working chamber 11, so that the upward path of the swing arm 2 avoids the stirrup. This allows the frame 1 to leave the current position smoothly after the reinforcing bar is tied, without affecting the subsequent erection and pouring of the formwork.

[0037] During the work, the installation position of the steel column is first marked out using instruments. Then, the position of frame 1 is determined according to the marked position. After the position of frame 1 is determined, frame 1 is placed in place. Then, the installation of the reinforcing bars in the embedded parts of the steel column begins. The reinforcing bars are inserted into the positioning holes 21 opened in the swing arm 2, and the bottom end of the reinforcing bar is in contact with the ground. This completes the positioning and installation of a single reinforcing bar. Reinforcing bars are installed in the positioning holes 21 opened in each swing arm 2 to achieve the positioning of all reinforcing bars. Then, the reinforcing bars are tied. After the reinforcing bars are tied, the embedded bolts in the embedded parts of the steel column are installed. After the embedded bolts are installed, the frame 1 is lifted up and moved away using a lifting device. After the frame 1 is moved away, the subsequent pouring process can begin.

[0038] This device positions the reinforcing bars by clamping them with positioning holes 21 on the swing arm 2. During the construction of the embedded steel column, the reinforcing bars are positioned to ensure that the position deviation of the final embedded steel column is within a reasonable range, thereby improving the installation accuracy. At the same time, after the reinforcing bars are tied, the frame 1 can be raised away from its current position. During the raising process, the swing arm 2 can rotate to avoid the stirrups, so that the entire tooling can be reused. The device can position the reinforcing bars in the early stage and does not affect the erection of the pouring formwork and the pouring of concrete in the later stage.

[0039] Specifically, the position of the swing arm 2 on the frame 1 is set according to the position of the reinforcing bar in the embedded part of the steel column. During use, multiple reinforcing bars can be positioned one by one by multiple swing arms 2.

[0040] Furthermore, the inner cavity of the positioning hole 21 is provided with a chamfered structure on the upper side of the end face near the frame 1. The chamfered structure is used to avoid the insert rib when the swing arm 2 rotates.

[0041] like Figures 5-7 As shown, when positioning the insert rod through the positioning hole 21, the insert rod needs to be inserted into the positioning hole 21 and contact the inner end face of the positioning hole 21 to ensure that the insert rod moves into place. When the frame 1 rises up and detaches from the already tied insert rod, the end of the swing arm 2 with the positioning hole 21 will rotate downward. At this time, the movement path of the inner end face of the positioning hole 21 will be interfered with by the insert rod, which will cause the insert rod to be squeezed. In order to prevent the wear of the inner end face of the positioning hole 21 during long-term use, a chamfer structure is provided on the upper side of the end face of the positioning hole 21 near the frame 1, so that when the swing arm 2 rotates downward, the inner end face of the positioning hole 21 can avoid the insert rod, and the rotation path of the inner end face of the positioning hole 21 will no longer be interfered with by the insert rod, preventing the inner end face of the positioning hole 21 from being squeezed and rubbed against the surface of the insert rod.

[0042] A retaining component is provided on the swing arm 2 or the frame 1. The retaining component is used to keep the swing arm 2 in the position of the positioning insert bar when the swing arm 2 is not subjected to external force.

[0043] When positioning the insert rod through the positioning hole 21 on the swing arm 2, it is first necessary to ensure that the swing arm 2 itself is in the position for positioning the insert rod. At the same time, in order to allow the swing arm 2 to avoid the stirrups on the insert rod when the frame 1 rises, the swing arm 2 is rotatably set on the frame 1. The retaining component can ensure that the swing arm 2 remains in the positioning state when it is not subjected to external force. When positioning the insert rod through the positioning hole 21 on the swing arm 2, the position of the insert rod is ensured to be accurate.

[0044] Figure 5 The first example of the retaining component is shown, in which the retaining component includes a counterweight 22 fixed to the bottom end of the swing arm 2;

[0045] Since the swing arm 2 is rotatably mounted on the frame 1, the counterweight 22 can be used to maintain the angle of the swing arm 2 in its natural state, so that the swing arm 2 remains in a fixed position without external force. Figure 5 As shown, the counterweight 22 is fixed at the center of the bottom end of the swing arm 2. When the swing arm 2 is not subjected to external force, it keeps the swing arm 2 in a horizontal state, which is the positioning state in this embodiment. By maintaining the angle of the swing arm 2 in its natural state through the counterweight 22, when the frame 1 is raised and the swing arm 2 rotates under the action of the stirrup, the swing arm 2 will not be obstructed and no additional operation is required. Moreover, the swing arm 2 can quickly return to the positioning state after it is separated from the contact with the stirrup.

[0046] Figure 6 A second example of a retaining assembly is shown, in which the retaining assembly includes a spring 23 fixed to the frame 1, the free end of the spring 23 being fixedly connected to the swing arm 2;

[0047] The positioning state of the swing arm 2 is maintained by a spring 23 installed on the frame 1, such as... Figure 6 As shown, spring 23 is located on the top surface inside frame 1. The lower end of spring 23 is fixedly connected to the end of swing arm 2 away from the positioning hole. When frame 1 rises and swing arm 2 is obstructed by the stirrup, swing arm 2 will rotate downward to avoid the stirrup. At this time, the end of swing arm 2 away from the positioning hole 21 will rotate upward, thereby compressing spring 23 between frame 1 and swing arm 2. Spring 23 deforms and stores elastic potential energy. When swing arm 2 disengages from the stirrup, spring 23 drives swing arm 2 to return to the positioning state. Similarly, no additional operation is required when frame 1 is raised, and the overall frame 1 is easy to use.

[0048] Furthermore, the bottom end of the frame 1 is provided with a angular hole 12 in the horizontal direction. The angular hole 12 is used to insert the bent part of the bottom end of the reinforcing bar to position the angular direction of the reinforcing bar. The frame 1 is provided with multiple angular holes 12, which correspond one-to-one with multiple reinforcing bars in the embedded parts of the steel column.

[0049] like Figures 3-4As shown, when installing the reinforcing bar, the horizontally bent part at the bottom of the reinforcing bar needs to face the set direction. In order to ensure that the orientation of the bent part at the bottom of the reinforcing bar does not shift during the binding process, the bent part at the bottom of the reinforcing bar is positioned angularly by the angular hole 12 opened on the frame 1, thereby ensuring that the orientation of the bent part at the bottom of the reinforcing bar does not change during the binding process.

[0050] like Figures 3-4 As shown, since frame 1 needs to be supported on the ground, and the bent part of the reinforcing bar is located at the bottom of the bent part, frame 1 and the bent part at the bottom of the reinforcing bar coincide in the vertical direction. Therefore, the bent part of the reinforcing bar can be angularly positioned by opening an angular hole 12 at the bottom of frame 1. During the subsequent binding of the reinforcing bar, the bent part at the bottom of the reinforcing bar can be kept from rotating by the angular hole 12, ensuring that the orientation of the bent part at the bottom of the reinforcing bar is correct.

[0051] Furthermore, the corner hole 12 is vertically connected to the bottom surface of the frame 1 so that the insert can be disengaged from the bottom of the corner hole 12.

[0052] After the reinforcing bars are tied, the frame 1 needs to be lifted up as a whole to detach from the reinforcing bars. At this time, the bent part at the bottom of the reinforcing bar needs to be detached from the corner hole 12. The corner hole 12 is connected to the bottom surface of the frame 1 in the vertical direction. When the frame 1 is raised, the reinforcing bar can leave the corner hole 12 directly from the bottom end of the corner hole 12. When lifting the frame 1, the frame 1 can be lifted up directly without any additional operation. The whole device is more convenient to use.

[0053] Specifically, frame 1 includes an upper frame 13 for mounting the swing arm 2, a lower frame 14 for supporting on the ground, and a bracket 15 for fixing the upper frame 13 and the lower frame 14 together. In order for frame 1 to position and support the reinforcing bar and keep the reinforcing bar vertical, frame 1 needs to have a certain height, which makes it difficult to control the volume of frame 1. In order to reduce the weight of frame 1, frame 1 is divided into upper frame 13 and lower frame 14. The upper frame 13 and lower frame 14 are fixedly connected by bracket 15. Upper frame 13 is used to mount the swing arm 2 to position the reinforcing bar horizontally. Lower frame 14 is used to support on the ground and has angular holes 12 for angular positioning of the reinforcing bar, ensuring that the bent part at the bottom of the reinforcing bar faces the set direction. While ensuring the space required for the installation of functional features on frame 1, the overall weight of frame 1 is reduced, making it more convenient to operate frame 1.

[0054] Furthermore, a vertical mounting hole 16 is provided on the frame 1, and a positioning post 17 is inserted into the mounting hole 16. The positioning post 17 is used to insert into the ground to limit the frame 1 in the horizontal direction.

[0055] During construction, the first step is to locate and lay out the steel column installation position. Then, based on the location and layout results, the frame 1 is placed in the preset position. At this time, the positioning column 17 is inserted into the ground through the installation hole 16 opened on the frame 1 to limit the frame 1 in the horizontal direction, preventing the frame 1 from shifting during the subsequent installation and binding of the reinforcing bars. This ensures that the position deviation of the final reinforcing bars and the pre-embedded parts of the steel column is within the control range, thereby improving the installation accuracy.

[0056] Specifically, the frame 1 has multiple mounting holes 16, and the horizontal positioning of the frame 1 is achieved by inserting multiple positioning pins 17 into the mounting holes 16.

[0057] Furthermore, the height of the positioning column 17 is not less than the height of the reinforcing bar;

[0058] After the reinforcing bars are tied, frame 1 needs to be raised to move away from the location of the embedded steel column, providing construction space for the subsequent pouring of the embedded steel column. When raising frame 1, hoisting equipment is required. Since the hoisting equipment is all flexible connection, it is impossible to guarantee the horizontal position of frame 1 during hoisting. In order to avoid frame 1 swaying and colliding with the tied reinforcing bars during hoisting, the height of positioning column 17 is controlled to be no less than the height of the reinforcing bars. When frame 1 is raised, positioning column 17 guides frame 1, preventing frame 1 from swaying during the raising process and ensuring the stability of frame 1 during the raising process. The height of positioning column 17 is no less than the height of the reinforcing bars, so that frame 1 can be guided by positioning column 17 until it is raised above the reinforcing bars.

[0059] Furthermore, an end cap 18 is detachably installed on the top of the positioning post 17;

[0060] When installing and removing the positioning post 17, an end cap 18 can be installed on the top of the positioning post 17 to facilitate the installation and removal of the positioning post 17. When the frame 1 rises away from the positioning post 17, the top end face of the positioning post 17 can be removed to ensure that the frame 1 can smoothly leave the positioning post 17.

[0061] like Figure 8 As shown, the detachable connection between the end cap 18 and the positioning post 17 is a conventional technical means in this field. The end cap 18 and the positioning post 17 can be threaded together to realize the installation and removal of the end cap 18 on the positioning post 17.

[0062] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A positioning fixture for embedded steel column components, used for positioning reinforcing bars, characterized in that: Includes a frame (1) and a swing arm (2); The frame (1) is used to support the ground, and a vertically penetrating working chamber (11) is formed in the middle of the frame (1), which is used for the construction of steel column embedded parts; The frame (1) is provided with multiple swing arms (2), each swing arm (2) at least partially intruding into the working chamber (11), and a positioning hole (21) is provided at one end of the swing arm (2) facing the working chamber (11). The positioning hole (21) is used to clamp the outer surface of the insert bar to position the insert bar. The arrangement of the multiple swing arms (2) matches the arrangement of the insert bars in the embedded steel column, so that the multiple swing arms (2) and the multiple insert bars correspond to each other. The positioning hole (21) passes through the swing arm (2) in the vertical direction and also passes through the side of the swing arm (2) facing the working chamber (11). The swing arm (2) is rotatably mounted on the frame (1) along the horizontal axis. The swing arm (2) is used to rotate along the horizontal axis to a state of engaging with the insert or disengaging from the insert.

2. The positioning fixture for embedded steel column parts according to claim 1, characterized in that: The bottom end of the frame (1) is provided with a angular hole (12) in the horizontal direction, and the opening width of the angular hole (12) matches the diameter of the insert bar. The angular hole (12) is used to allow the bent part of the bottom end of the insert bar to be inserted to position the angular direction of the insert bar. The angular hole (12) is connected to the bottom surface of the frame (1) in the vertical direction so that the insert can be disengaged from the bottom of the angular hole (12).

3. The positioning fixture for embedded steel column parts according to claim 1, characterized in that: The frame (1) includes an upper frame (13) for mounting the swing arm (2), a lower frame (14) for supporting on the ground, and a bracket (15) for fixing the upper frame (13) and the lower frame (14) together.

4. The positioning fixture for embedded steel column parts according to claim 1, characterized in that: The inner cavity of the positioning hole (21) is provided with a chamfered structure on the upper side of the end face near the frame (1). The chamfered structure is used to avoid the insert rib when the swing arm (2) rotates.

5. The positioning fixture for embedded steel column parts according to claim 1, characterized in that: A retaining component is provided on the swing arm (2) or the frame (1), and the retaining component is used to keep the swing arm (2) in the position of the positioning insert when the swing arm (2) is not subjected to external force.

6. The positioning fixture for embedded steel column parts according to claim 5, characterized in that: The retaining assembly includes a counterweight (22) fixed to the bottom end of the swing arm (2).

7. The positioning fixture for embedded steel column parts according to claim 5, characterized in that: The retaining assembly includes a spring (23) fixed to the frame (1), the free end of which is fixedly connected to the swing arm (2).

8. The positioning fixture for embedded steel column parts according to claim 1, characterized in that: The frame (1) has a vertically penetrating mounting hole (16), and a positioning post (17) is inserted into the mounting hole (16). The positioning post (17) is used to insert into the ground to limit the frame (1) in the horizontal direction.

9. The positioning fixture for embedded steel column parts according to claim 8, characterized in that: The height of the positioning column (17) is not less than the height of the reinforcing bar.

10. The positioning fixture for embedded steel column parts according to claim 8, characterized in that: The top of the positioning post (17) is detachably fitted with an end cap (18).

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