Positioning fixture for mounting precision control of prefabricated pier body

Abstract

The utility model relates to the technical field of bridge construction, in particular to a prefabricated pier body installation precision control positioning fixture which comprises a positioning piece. The positioning piece is provided with a plurality of containing grooves in the first direction. A plurality of first positioning holes are formed in the bottom wall of the containing groove and used for containing reserved steel bars. The device has the effects of improving the pier body mounting precision degree and improving the mounting efficiency.

Description

Technical Field

[0001] This application relates to the technical field of bridge construction, and particularly to a positioning fixture for controlling the installation accuracy of precast pier shafts. Background Art

[0002] The construction method of prefabricated bridges is gradually replacing the traditional cast-in-situ construction method to improve construction efficiency and quality. As an important part of prefabricated bridges, the installation accuracy of precast pier columns directly affects the overall performance and safety of bridges.

[0003] In related technologies, in order to ensure the installation accuracy of precast pier columns, manual measurement and positioning methods are usually adopted, but this method is inefficient and inaccurate.

[0004] In view of the above related technologies, the existing manual measurement and positioning methods are greatly affected by human factors, prone to errors, and time-consuming, which is not conducive to improving the construction progress and ensuring the construction quality. Utility Model Content

[0005] In order to improve the installation accuracy and efficiency of pier shafts, this application provides a positioning fixture for controlling the installation accuracy of precast pier shafts.

[0006] The positioning fixture for controlling the installation accuracy of precast pier shafts provided by this application adopts the following technical solutions:

[0007] A positioning fixture for controlling the installation accuracy of precast pier shafts includes a positioning member;

[0008] The positioning member is provided with a plurality of receiving grooves along a first direction;

[0009] The bottom wall of the receiving groove is provided with a plurality of first positioning holes for receiving reserved steel bars.

[0010] By adopting the above technical solutions, by setting the positioning member with receiving grooves formed thereon, the shape of the receiving grooves is set according to the shape of the pier shaft, and the installation position of the pier shaft is preliminarily positioned by the receiving grooves. By setting the first positioning holes, the installation positions of the reserved steel bars are positioned by the first positioning holes. The reserved steel bars are inserted into the first positioning holes, and the pier shaft is installed at the insertion position of the reserved steel bars, so that the pier shaft can be accurately positioned, further improving the installation efficiency.

[0011] Optionally, it further includes a first card member, which is detachably connected to the bottom wall of the receiving groove of the positioning member. A positioning groove is formed through one side of the first card member along a first direction, and the positioning groove is correspondingly arranged with the first positioning hole. A first positioning plate is connected to the first card member, and the first positioning plate is parallel to a second direction, where the second direction is perpendicular to the first direction. The first positioning plate includes a first contact surface, and the first contact surface contacts the side wall of the reserved steel bar.

[0012] By adopting the above technical solution, when the reserved steel bar is inserted into the first positioning hole, it is possible that some reserved steel bars are inclined. By setting the first card member and the first positioning plate, during construction, the positioning groove is abutted against the side wall of the reserved steel bar, and the first contact surface of the first positioning plate is abutted against the side wall of the reserved steel bar. If each positioning groove is tightly abutted against each reserved steel bar, and if one or more reserved steel bars do not contact the first contact surface, it means that the reserved steel bars on the detected side are in a non-horizontal state, and the personnel can adjust them in time to reduce the occurrence of inclined reserved steel bars.

[0013] Optionally, the first positioning plate is slidably connected to the first positioning plate along a third direction, where the third direction is perpendicular to both the first direction and the second direction.

[0014] By adopting the above technical solution, in order to make the first positioning plate always contact the reserved steel bar, the first positioning plate is slidably connected to the first positioning plate along the third direction, so that the first positioning plate moves towards the side close to the reserved steel bar.

[0015] Optionally, it further includes a first driving assembly, which includes a fixed seat and a push rod. The fixed seat is fixedly connected to the side of the first card member away from the positioning groove. The push rod is parallel to the third direction. After passing through the fixed seat, the push rod is connected to the first positioning plate, and the push rod is slidably connected to the fixed seat along the third direction.

[0016] By adopting the above technical solution, by setting the push rod, the push rod pushes the first positioning plate along the third direction, so that the first positioning plate contacts the reserved steel bar.

[0017] Optionally, it further includes a second positioning plate, which is arranged on the side of the first positioning plate away from the first card member. The second positioning plate includes a second contact surface, and the second contact surface is perpendicular to the first contact surface. The second contact surface contacts the top wall of the embedded steel bar.

[0018] By adopting the above technical solution, when the reserved steel bars are inserted into the first positioning holes, if the top heights of the reserved steel bars are inconsistent, the pier body may be inclined during the installation of the pier body. By providing the second positioning plate, the second contact surface of the second positioning plate contacts the top wall of the reserved steel bar, and whether the second positioning plate contacts the reserved steel bar is used to determine whether the heights of the reserved steel bars are consistent.

[0019] Optionally, the second positioning plate is slidably connected to the first positioning plate in a first direction.

[0020] By adopting the above technical solution, in different working conditions, the installation heights of the reserved steel bars may vary. In order to enable the second installation plate to adapt to the reserved steel bars with different installation heights, the second positioning plate is slidably connected to the first positioning plate in a first direction.

[0021] Optionally, it further includes a screw rod for driving the second positioning plate to slide in the first direction. The screw rod is arranged parallel to the first direction. One end of the screw rod passes through the first positioning plate and is connected to the second positioning plate. The screw rod is threadedly connected to the first positioning plate, and the screw rod is connected to the second positioning plate through a bearing.

[0022] By adopting the above technical solution, in order to drive the second positioning plate to slide in the first direction, by providing a screw rod, the screw rod is threadedly connected to the first positioning plate, the screw rod is connected to the second positioning plate through a bearing, and the rotation of the screw rod drives the second positioning plate to slide in the first direction.

[0023] Optionally, it further includes a guiding member. The guiding member is arranged parallel to the first direction. One end of the guiding member is fixedly connected to the second positioning plate, and the other end passes through the first positioning plate. The guiding member is slidably connected to the first positioning plate in the first direction.

[0024] By adopting the above technical solution, by providing a guiding member, the sliding of the second installation plate in the first direction is guided by the guiding member.

[0025] Optionally, it further includes an infrared laser locator. The infrared laser locator is installed on one side of the first fixture, and the light emitted by the infrared laser locator is parallel to the second direction.

[0026] By adopting the above technical solution, since the first positioning plate needs to detect the levels of multiple reserved steel bars, the first positioning plate has a certain length. When the first positioning plate slides in a third direction, the first positioning plate itself may be inclined. Therefore, by providing an infrared laser locator, the level of the first positioning plate is detected by the infrared laser locator.

[0027] Optionally, the infrared laser locator is slidably connected to the first fixture in a third direction.

[0028] By adopting the above technical solution, since the first positioning plate slides along the third direction, for the convenience of the infrared laser locator to detect, the infrared laser locator is slidably connected to the first clamping member along the third direction.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. By setting the positioning member in the present application, the installation position of the pier body can be preliminarily positioned. By setting the first positioning hole, the reserved steel bars are inserted into the first positioning hole to accurately position the installation position of the pier body, thereby improving the installation efficiency of the pier body;

[0031] 2. By setting the first clamping member and the first positioning plate in the present application, the positioning groove of the first clamping member abuts against the side wall of the reserved steel bar. Whether the reserved steel bar is inclined is judged by whether the reserved steel bar contacts the first positioning plate, ensuring that multiple reserved steel bars are on the same horizontal line;

[0032] 3. By setting the second positioning plate in the present application, the second positioning plate slides along the third direction, and the second contact surface of the second positioning plate contacts the top wall of the reserved steel bar, further ensuring that the reserved steel bar is in a vertical state, thereby improving the installation accuracy of the pier body. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of the positioning member of a positioning fixture for controlling the installation accuracy of a precast pier body in the present application;

[0034] Figure 2 is a schematic structural diagram of the reserved steel bar and the first clamping member in the present application;

[0035] Figure 3 is a schematic structural diagram of the first positioning plate and the first driving assembly in the present application;

[0036] Figure 4 is a schematic structural diagram of the second positioning plate and the first positioning plate in the present application.

[0037] Description of the reference numerals: 01, reserved steel bar; 1, positioning member; 11, receiving groove; 12, first positioning hole; 2, first clamping member; 21, positioning groove; 22, sliding groove; 3, first positioning plate; 31, first contact surface; 4, first driving assembly; 41, fixed seat; 42, push rod; 5, second positioning plate; 51, second contact surface; 52, screw rod; 521, bearing; 6, guiding member; 7, infrared laser locator; 71, fixing block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] The following is a further detailed description of the present application in combination with the attached Figures 1-4 drawings.

[0039] The embodiment of the present application discloses a positioning fixture for controlling the installation precision of a prefabricated pier body. For the convenience of description, the present application introduces directional words such as a first direction, a second direction, and a third direction to form a three-dimensional reference direction. The directional words used, such as "a first direction, a second direction, and a third direction", can be specifically shown with reference to the figure, where X represents the first direction X, Y represents the second direction Y, and Z represents the third direction Z. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0040] Reference Figure 1 The positioning fixture for controlling the installation precision of the prefabricated pier body includes a positioning member 1. The positioning member 1 has a plurality of receiving grooves 11 along its height direction. The bottom wall of the receiving groove 11 has a plurality of first positioning holes 12. The first positioning holes 12 are used to accommodate the reserved steel bars 01. During construction, the expected steel bars of the pier body are inserted into the first positioning holes 12 to position the reserved steel bars 01.

[0041] Reference Figure 1 In some embodiments, the cross-section of the positioning member 1 can be annular or rectangular, and the receiving groove 11 can be a rectangular groove or an annular groove, depending on the shape of the pier body required during actual construction. In this embodiment, the cross-section of the positioning member 1 is rectangular, the receiving groove 11 is a rectangular groove, and the positioning member 1 is cast by concrete. During installation, the bottom of the pier body is located in the receiving groove 11, and multiple first positioning holes 12 are arranged in a rectangular shape to position the reserved steel bars 01.

[0042] Reference Figure 2 and Figure 3 When the reserved steel bars 01 are inserted into the first positioning holes 12, some of the reserved steel bars 01 may be tilted. The prefabricated pier body installation precision control positioning fixture also includes a first clamp 2, and the first clamp 2 is detachably connected to the bottom wall of the accommodating groove 11 of the positioning member 1. A positioning groove 21 is provided on one side of the first clamp 2 along the first direction. The positioning groove 21 is correspondingly arranged to the first positioning hole 11. A first positioning plate 3 is connected to the first clamp 2, and the first positioning plate 3 is parallel to the second direction. The first positioning plate 3 includes a first contact surface 31, and the first contact surface 31 contacts the side wall of the reserved steel bars 01.

[0043] Reference Figure 3, in this embodiment, the positioning groove 21 is a semi-circular groove, and the positioning groove 21 abuts against the outer peripheral wall of the reserved steel bar 01. It should be noted that the first clamping member 2 is provided on one side of one of the rectangular sides of the reserved steel bar 01 surrounded in a rectangular shape. When it is necessary to test the levelness of the reserved steel bar 01 on each side, the first clamping member 2 can be moved; during construction, the positioning groove 21 is abutted against the side wall of the reserved steel bar 01, and the first contact surface 31 of the first positioning plate 3 is abutted against the side wall of the reserved steel bar 01. If each positioning groove 21 is tightly abutted against each reserved steel bar 01, and if one or more reserved steel bars 01 do not contact the first contact surface 31, it means that the reserved steel bar 01 on the detected side is in a non-horizontal state, and the personnel can adjust it in time to reduce the occurrence of the reserved steel bar 01 tilting.

[0044] Refer to Figure 3 , in order to enable the first positioning plate 3 to always contact the side wall of the reserved steel bar 01, the first positioning plate 3 is slidably connected to the first positioning plate 3 in the third direction. In order to drive the first positioning plate 3 to slide in the third direction, the precast pier installation precision control positioning fixture further includes a first driving assembly 4. The first driving assembly 4 includes a fixed seat 41 and a push rod 42. The fixed seat 41 is fixedly connected to the side of the first clamping member 2 away from the positioning groove 21. The push rod 42 is parallel to the third direction. After passing through the fixed seat 41, the push rod 42 is fixedly connected to the first positioning plate 3. The push rod 42 is slidably connected to the fixed seat 41 in the third direction. The personnel push the push rod 42 to further drive the first positioning plate 3 to move toward the side close to the reserved steel bar 01, so that the first positioning plate 3 contacts the reserved steel bar 01.

[0045] Refer to Figure 4 , when the reserved steel bar 01 is inserted into the first positioning hole 12, if the top heights of the reserved steel bars 01 are inconsistent, when installing the pier, it may cause the pier to tilt. For this reason, the precast pier installation precision control positioning fixture further includes a second positioning plate 5. The second positioning plate 5 is provided on the side of the first positioning plate 3 away from the first clamping member 2. The second positioning plate 5 includes a second contact surface 51. The second contact surface 51 is perpendicular to the first contact surface 31. The second contact surface 51 contacts the top wall of the embedded steel bar, so as to detect and judge whether the heights of multiple reserved steel bars 01 are consistent through the second positioning plate 5, which is convenient for personnel to adjust later.

[0046] Refer to Figure 4, in order to make the second installation rod contact with the top wall of the reserved steel bar 01, the second positioning plate 5 is slidably connected to the first positioning plate 3 in the first direction. The precast pier installation precision control positioning fixture further includes a screw rod 52 for driving the second positioning plate 5 to slide in the first direction. The screw rod 52 is arranged parallel to the first direction. One end of the screw rod 52 passes through the first positioning plate 3 and is connected to the second positioning plate 5. The screw rod 52 is threadedly connected to the first positioning plate 3. The screw rod 52 and the second positioning plate 5 are connected through a bearing 521 to prevent the rotation of the screw rod 52 from driving the rotation of the second positioning plate 5. By rotating the screw rod 52, the second positioning plate 5 can be driven to slide in the first direction. By providing the first positioning plate 3 and the second positioning plate 5, the horizontal degrees of the side wall and the top of the reserved steel bar 01 can be detected simultaneously.

[0047] Refer to Figure 4 , in order to guide the sliding of the second positioning plate 5 in the first direction, the precast pier installation precision control positioning fixture further includes a guiding member 6. The guiding member 6 is arranged parallel to the first direction. One end of the guiding member 6 is fixedly connected to the second positioning plate 5, and the other end passes through the first positioning plate 3. The guiding member 6 is slidably connected to the first positioning plate in the first direction.

[0048] Refer to Figure 4 , since the first positioning plate 3 needs to detect the horizontal degrees of multiple reserved steel bars 01, the first positioning plate 3 has a certain length. When the first positioning plate 3 slides in the third direction, the first positioning plate 3 itself may tilt. For this reason, the precast pier installation precision control positioning fixture further includes an infrared laser locator 7. The infrared laser locator 7 is installed on one side of the first fixture 2. The light emitted by the infrared laser locator 7 is parallel to the second direction to measure the horizontal degree of the first positioning plate 3 by the infrared laser locator 7.

[0049] Refer to Figure 4 , since the first positioning plate 3 slides in the third direction, in order to facilitate the detection by the infrared laser locator 7, the infrared laser locator 7 is slidably connected to the first fixture 2 in the third direction. Specifically, a chute 22 is formed in the bottom wall of the first fixture 2 in the third direction. A fixing block 71 is installed on the bottom wall of the infrared laser locator 7. The fixing block 71 slides along the wall of the chute 22 so that the infrared laser locator 7 slides in the third direction to a position corresponding to the first positioning plate 3 for detection.

[0050] The implementation principle of a precast pier installation precision control positioning fixture in an embodiment of the present application is as follows: During construction, the concrete pouring positioning member 1, and the pier body is arranged in the accommodation groove 11 of the positioning member 1. In order to position the installation position of the pier body, a plurality of first positioning holes 12 are formed in the positioning member 1 according to the shape of the pier body, and a reserved steel bar 01 is inserted into each positioning hole to position the installation position of the pier body with the reserved steel bar 01;

[0051] In order to reduce the inclination of the reserved steel bar 01, the positioning groove 21 of the first clamping member 2 is abutted against the side wall of the reserved steel bar 01. The personnel push the push rod 42 along the third direction, driving the first positioning plate 3 to contact the side wall of the reserved steel bar 01, so as to detect the inclination degree of the reserved steel bar 01 through the first positioning plate 3, which is convenient for the personnel to observe and adjust. By rotating the screw rod, the second positioning plate 5 is driven to contact the top wall of the reserved steel bar 01, so that the second positioning plate 5 detects whether the heights of the reserved steel bars 01 are consistent.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A positioning fixture for controlling the installation accuracy of a prefabricated pier, characterized in that: It comprises a positioning member (1); The positioning member (1) is provided with a plurality of accommodating grooves (11) along a first direction; The bottom wall of the receiving groove (11) is provided with a plurality of first positioning holes (12), and the first positioning holes (12) are used to accommodate the reserved steel bars (01).

2. The prefabricated pier installation precision control positioning fixture according to claim 1, characterized in that: The invention also comprises a first clamping member (2), wherein the first clamping member (2) is detachably connected to the bottom wall of the receiving groove (11) of the positioning member (1), a positioning groove (21) is provided on one side of the first clamping member (2) along the first direction, the positioning groove (21) is arranged corresponding to the first positioning hole (12), a first positioning plate (3) is connected to the first clamping member (2), the first positioning plate (3) is parallel to the second direction, and the second direction is perpendicular to the first direction, and the first positioning plate (3) comprises a first contact surface (31), and the first contact surface (31) is in contact with the side wall of the reserved steel bar (01).

3. A prefabricated pier installation precision control positioning fixture according to claim 2, characterized in that: The first positioning plate (3) is slidably connected to the first positioning plate (3) along a third direction, and the third direction is perpendicular to both the first direction and the second direction.

4. The prefabricated pier installation precision control positioning fixture according to claim 3, characterized in that: The invention also comprises a first driving assembly (4), wherein the first driving assembly (4) comprises a fixed seat (41) and a push rod (42), wherein the fixed seat (41) is fixedly connected to a side of the first clamping member (2) away from the positioning groove (21), and the push rod (42) is parallel to a third direction, and the push rod (42) is connected to the first positioning plate (3) after passing through the fixed seat (41), and the push rod (42) is slidably connected to the fixed seat (41) along the third direction.

5. The prefabricated pier installation precision control positioning fixture according to claim 2, characterized in that: The invention also comprises a second positioning plate (5), wherein the second positioning plate (5) is arranged on a side of the first positioning plate (3) away from the first clamping member (2), and the second positioning plate (5) comprises a second contact surface (51), wherein the second contact surface (51) is perpendicular to the first contact surface (31), and the second contact surface (51) contacts the top wall of the embedded steel bar.

6. The prefabricated pier installation precision control positioning fixture according to claim 5, characterized in that: The second positioning plate (5) is slidably connected to the first positioning plate (3) along a first direction.

7. The prefabricated pier installation precision control positioning fixture according to claim 6, characterized in that: It also includes a screw rod (52) for driving the second positioning plate (5) to slide along the first direction, the screw rod (52) is arranged parallel to the first direction, one end of the screw rod (52) passes through the first positioning plate (3) and is connected to the second positioning plate (5), the screw rod (52) is threadedly connected to the first positioning plate (3), and the screw rod (52) and the second positioning plate (5) are connected via a bearing.

8. The prefabricated pier installation precision control positioning fixture according to claim 7, characterized in that: It also includes a guide member (6), which is arranged parallel to the first direction, one end of the guide member (6) is fixedly connected to the second positioning plate (5), and the other end is passed through the first positioning plate (3), and the guide member (6) is slidably connected to the first positioning plate (3) along the first direction.

9. A prefabricated pier installation precision control positioning fixture according to any one of claims 1 to 8, characterized in that: It also comprises an infrared laser locator (7), which is installed on one side of the first clamp (2), and the light emitted by the infrared laser locator (7) is parallel to the second direction.

10. A prefabricated pier installation precision control positioning fixture according to claim 9, characterized in that: The infrared laser locator (7) is slidably connected to the first clamping member (2) along a third direction.

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