Positioning fixture and positioning method for installing fixed rail screws

Abstract

The present invention relates to a positioning fixture and positioning method for installing and fixing track screws. The positioning fixture includes a positioning block, a positioning plate with a length not less than the width of the track strip foundation, and a wooden square for controlling the screw elevation. The wooden square and the center block are fixed on the same side of the positioning plate. One side edge of the positioning plate is provided with a plurality of first slots for the screws to be inserted at intervals along the length direction. One side edge of the wooden square is provided with a plurality of second slots for the screws to be inserted at intervals along the length direction. The plurality of first slots correspond to the plurality of second slots in a one-to-one manner, and each first slot is perpendicular to the corresponding second slot and is connected to each other. The center line of the center block coincides with the center line of the positioning plate. The present invention solves the technical problem of inaccurate positioning of pre-buried screws for fixing gantry crane tracks in the prior art. The device of the present invention can simultaneously control the installation position and elevation of the screws, greatly reducing the operational steps of screw positioning.

Description

Technical Field

[0001] The present invention relates to the field of building construction, and in particular to a positioning fixture and a positioning method for installing a fixed track screw. Background Art

[0002] At present, gantry cranes are commonly used for lifting during box girder prefabrication and beam lifting operations in beam yards. However, in the construction of gantry crane strip foundations, it is often necessary to pre-embed the screws used to fix the tracks in advance. During on-site construction, the screws are often installed by measuring the elevation and relative position at the same time. This not only affects the installation progress of the screws, but also easily causes excessive deviation in the screw installation position due to human factors. However, when prefabricating box girders in the beam yard, the box girder is moved by moving the beam on the track using a bottom formwork trolley. In order to prevent the beam from cracking during the process of moving from the casting area to the steaming area after the initial box girder casting is completed, it is often necessary to strictly control the installation accuracy and elevation of the track. Summary of the Invention

[0003] In response to the above-mentioned shortcomings in the prior art, the present invention provides a positioning fixture and positioning method for installing fixed track screws, which solves the technical problem of inaccurate positioning of embedded screws used to fix gantry crane tracks in the prior art.

[0004] In the first aspect, the present invention discloses a positioning fixture for installing and fixing track screws, comprising a positioning block, a positioning plate with a length not less than the width of the track strip foundation, and a wooden square for controlling the height of the screw. The wooden square and the positioning block are fixed on the same side of the positioning plate. One side edge of the positioning plate is provided with a plurality of first slots for the screws to be inserted at intervals along the length direction, and one side edge of the wooden square is provided with a plurality of second slots for the screws to be inserted at intervals along the length direction. The positions of the plurality of first slots correspond one to one with the positions of the plurality of second slots, and each of the first slots and the corresponding second slots are perpendicular to each other and connected to each other. The center line of the positioning block coincides with the center line of the positioning plate.

[0005] A further improvement of the positioning fixture for installing and fixing the track screw rod of the present invention is that the positioning plate is in the shape of an elongated strip, and the length of the positioning plate is greater than the width of the track strip base.

[0006] The positioning fixture for installing and fixing the rail screw rod of the present invention is further improved in that the bottom of the first slot is aligned with the bottom of the second slot and both are in an arc shape that matches the circumference of the screw rod.

[0007] A further improvement of the positioning fixture for installing and fixing the track screw rod of the present invention is that the height of the positioning block is greater than the height of the wooden square.

[0008] The positioning fixture for installing and fixing the track screw rod of the present invention is further improved in that the side of the wooden square facing away from the second slot is flush with the side of the positioning plate facing away from the first slot.

[0009] In a second aspect, the present invention further provides a positioning method for installing a fixed track screw, comprising the following steps:

[0010] Install templates on both sides of the track strip foundation so that the top elevation of the templates is the same as the top elevation of the track strip foundation;

[0011] Hang a center control line on the top surface of the track strip foundation along the center line of the track strip foundation;

[0012] Provide the positioning fixture for installing and fixing the track screw as described above, and place the positioning fixture across the templates on both sides corresponding to the position where the screw is to be installed, and make the center line of the positioning block be located on the center control line;

[0013] Insert the screw rod along the first slot and make the circumference of the screw rod stick to the circumference wall of the second slot, and make the upper part of the screw rod extend out of the top surface of the wooden block to form an extension section for screwing the nut;

[0014] The lower part of the screw rod is fixed to the steel bars of the track strip foundation.

[0015] The positioning fixture for installing and fixing the track screw rod of the present invention is further improved in that the positioning plate is in the shape of an elongated strip, and the length of the positioning plate is greater than the width of the track strip base;

[0016] When the positioning fixture is set across the templates on both sides and corresponds to the position where the screw is to be installed, the positioning plate is set on the templates on both sides and corresponds to the position where the screw is to be installed, and the positioning plate is moved along the width direction of the track strip foundation so that the center line of the positioning block is aligned with the center control line.

[0017] Compared with the existing technology, the present invention has a positive and significant effect. The present invention positions the screw rod by combining a positioning plate, a wooden block, and a positioning block, solving the technical problem of inaccurate positioning of the pre-embedded screw rods used to fix the gantry crane track in the prior art. The device of the present invention can simultaneously control the installation position and elevation of the screw rod, and the device can simultaneously position multiple screw rods in a row, greatly reducing the number of screw rod positioning operations and improving positioning efficiency. The device has a simple structure, is easy to manufacture, and is reusable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a three-dimensional diagram of the positioning fixture for installing and fixing the track screw according to the present invention.

[0020] Figure 2 This is a front view of the positioning fixture for installing and fixing the track screw according to the present invention.

[0021] Figure 3 This is a top view of the positioning fixture for installing and fixing the track screw according to the present invention.

[0022] Figure 4 It is a side view of the positioning fixture for installing and fixing the track screw according to the present invention. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1 and Figure 2 As shown, the present invention provides a positioning fixture for installing and fixing track screws, comprising a positioning block 3, a positioning plate 1 having a length not less than the width of the track strip foundation, and a wooden square 2 for controlling the height of the screw. The wooden square 2 and the positioning block are fixed on the same side of the positioning plate 1. A plurality of first slots 4 for the screws to be inserted are provided at intervals along the length direction on one side of the positioning plate 1. A plurality of second slots 5 for the screws to be inserted are provided at intervals along the length direction on one side of the wooden square 2. The plurality of first slots 4 correspond to the plurality of second slots 5 in position, and each first slot 4 is perpendicular to the corresponding second slot 5 and is connected to each other. The centerline of the positioning block 3 coincides with the centerline of the positioning plate 1. In this embodiment, the dimensions of the positioning plate 1 are 180 cm long, 10 cm wide, and 3 cm thick. The cross section of the wooden square 2 is a square with a side length of 5 cm, and the cross section of the positioning block 3 is also a square with a side length of 5 cm. The length of the first slot 4 is half the width of the positioning plate 1, and the bottom position of the second slot 5 corresponds to the bottom position of the first slot 4, so that when the screw is inserted into the first slot 4 and the second slot 5, it can be inserted and adhered to the bottom position at the same time to ensure the accuracy of positioning.

[0025] Preferably, the positioning plate 1 is in the shape of an elongated strip, and the length of the positioning plate 1 is greater than the width of the track strip foundation. The positioning plate 1 of this length can be set up on the templates on both sides of the track strip foundation for more convenient positioning.

[0026] Preferably, the bottom of the first slot 4 is aligned with the bottom of the second slot 5 and both are arc-shaped to match the circumference of the screw, so that the screw can be tightly attached to the slot wall, avoiding displacement of the screw during construction and improving the accuracy of bolt fixing.

[0027] Preferably, the height of the positioning block 3 is greater than the height of the wooden square 2, so that it is more convenient to grasp the entire device and to adjust the alignment of the positioning block with the center line of the track strip foundation.

[0028] Preferably, Figure 3 and Figure 4 As shown, the side of the wooden block 2 facing away from the second slot 5 is flush with the side of the positioning plate 1 facing away from the first slot 4, thereby facilitating simultaneous fixing of the wooden block 2 and the positioning block 3 on the positioning plate 1 to ensure the integrity of the device.

[0029] On the other hand, the present invention also provides a positioning method for installing a fixed track screw, comprising the following steps:

[0030] Install templates on both sides of the track strip foundation so that the top elevation of the templates is the same as the top elevation of the track strip foundation;

[0031] Hang a center control line on the top surface of the track strip foundation along the center line of the track strip foundation;

[0032] Provide the positioning fixture for installing and fixing the track screw as described above, and place the positioning fixture across the templates on both sides corresponding to the position where the screw is to be installed, and make the center line of the positioning block 3 be on the center control line;

[0033] Insert the screw rod along the first slot 4 and make the circumference of the screw rod stick to the circumference of the second slot 5, and make the upper part of the screw rod extend out of the top surface of the wooden square 2 and form an extension section for screwing the nut;

[0034] The lower part of the screw rod is fixed to the steel bars of the track strip foundation.

[0035] Furthermore, the positioning plate 1 is in the shape of a long strip, and the length of the positioning plate 1 is greater than the width of the track strip foundation; when the positioning fixture is set across the templates on both sides and corresponds to the position of the screw to be installed, the positioning plate 1 is set on the templates on both sides and corresponds to the position of the screw to be installed, and the positioning plate 1 is moved along the width direction of the track strip foundation so that the center line of the positioning block 3 is aligned with the center control line.

[0036] This method ensures that the top elevation of the template is flush with the top of the track strip foundation, so that when the positioning fixture is placed on the two side horizontal boards, the bottom surface of the positioning fixture is exactly flush with the top surface of the track strip foundation. The screw elevation controlled by the positioning fixture is the elevation at which the screw is exposed from the track strip foundation, thereby enabling the wooden square 2 to accurately control the screw elevation. Before the screw is inserted into the first slot 4 and the circumference of the screw is attached to the circumference of the second slot 5, a nut can be screwed onto the top of the screw, and then the screw is inserted into the first slot 4 and the second slot 5, with the bottom surface of the nut not lower than the top surface of the wooden square 2. Therefore, the wooden square 2 should be positioned so that the top surface of the screw is higher than the top surface of the wooden square 2. This method uses the templates on both sides of the track strip foundation to control the elevation of the concrete top surface, then uses markings to perform specific positioning, and then controls the specific fixed positioning of the screw through the center of the positioning block 3 and the center control line. Then, the embedded height of the screw is controlled by the height of the wooden square 2, so that the upper part of the screw is welded to the steel bar to complete the rapid positioning of the screw.

[0037] The present invention positions screw rods by combining positioning plates, wooden blocks, and positioning blocks, resolving the technical problem of inaccurate positioning of pre-embedded screw rods used to secure gantry crane rails in the prior art. The device of the present invention can simultaneously control the installation position and elevation of the screw rods and can simultaneously position multiple screw rods in a row, significantly reducing the number of screw rod positioning steps and improving positioning efficiency. The device also features a simple structure, is easy to manufacture, and is reusable.

[0038] The parts not mentioned in the present invention are the same as the existing technology or can be implemented by using the existing technology. The above description is only the preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as the preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to the equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A positioning fixture for installing and fixing a track screw, characterized in that: The cam is configured to allow the user to move the screw rods in a direction opposite to the vertical axis of the track bar, wherein the cam is configured to move the screw rods in a direction opposite to the vertical axis of the track bar, wherein the cam is configured to move the screw rods in a direction opposite to the vertical axis of the track bar, wherein the cam is configured to move the screw rods in a direction opposite to the vertical axis of the track bar, wherein the user moves ...

2. The positioning fixture for installing and fixing rail screws according to claim 1, characterized in that: The height of the positioning block is greater than the height of the wooden square.

3. The positioning fixture for installing and fixing rail screws according to claim 1, characterized in that: The side of the wooden square facing away from the second slot is flush with the side of the positioning plate facing away from the first slot.

4. A positioning method for installing a fixed track screw, characterized in that: The steps include: Installing templates on both sides of the track strip foundation so that the top elevation of the templates is the same as the top elevation of the track strip foundation; Hanging a center control line on the top surface of the track strip foundation along the center line of the track strip foundation; Provide a positioning fixture for installing and fixing a track screw as claimed in claim 1, and place the positioning fixture across the templates on both sides corresponding to the position where the screw is to be installed, with the center line of the positioning block located on the center control line; Insert the screw rod along the first slot and make the circumference of the screw rod stick to the circumference wall of the second slot, and make the upper part of the screw rod extend out of the top surface of the wooden block to form an extension section for screwing the nut; The lower part of the screw rod is fixed to the steel bars of the track strip foundation.

5. The positioning method for installing and fixing a track screw according to claim 4, characterized in that: The positioning plate is in the shape of an elongated strip, and the length of the positioning plate is greater than the width of the track strip foundation; When the positioning fixture is set across the templates on both sides and corresponds to the position where the screw is to be installed, the positioning plate is set on the templates on both sides and corresponds to the position where the screw is to be installed, and the positioning plate is moved along the width direction of the track strip foundation so that the center line of the positioning block is aligned with the center control line.

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