A high-precision pre-embedded bolt positioning frame for hydraulic engineering

Abstract

This utility model relates to a high-precision pre-embedded bolt positioning frame for hydraulic engineering, including a support frame consisting of two parallel and spaced crossbeams and several cross braces connecting the two; a limiting component, at least two sets of which are connected to the support frame, the limiting component including a web and a flange plate fixedly connected to the top of the web; by opening mounting holes in the support frame to form limiting holes for limiting the installation of pre-embedded bolts, and connecting the limiting component to the support frame, the limiting component can position the support frame between two edge angle steels, so that the mounting holes on the support frame correspond to the pre-embedded positions of the pre-embedded bolts, and ensure that the position after insertion is significantly offset. After the pre-embedded bolt is inserted into the mounting hole, the installation height of the pre-embedded bolt can be adjusted by installing an adjusting nut on the upper end of the pre-embedded bolt extending out of the support frame, and by using the threaded engagement between the adjusting nut and the pre-embedded bolt.

Description

Technical Field

[0001] This utility model belongs to the field of construction positioning, specifically designing a high-precision pre-embedded bolt positioning frame for hydraulic engineering. Background Technology

[0002] In hydraulic engineering (such as slipways and track beams) construction, the installation accuracy requirement for embedded bolts is less than ±2mm. Existing methods for fixing embedded bolts have the following drawbacks:

[0003] Poor positioning accuracy: Most of the time, the pre-embedded positioning is achieved by inserting pre-embedded screws after pouring concrete, or by welding pre-embedded screws to pre-embedded steel bars. The pre-embedded screws are prone to displacement and tilting during concrete pouring and vibration, resulting in verticality exceeding the tolerance (usually error > 5mm).

[0004] Low installation efficiency: Repeated measurements and corrections of intervals, height, and tilt angles are required, which greatly reduces construction efficiency;

[0005] High reinforcement costs: To reduce displacement, a large number of auxiliary support frames need to be welded, increasing labor and material costs. Utility Model Content

[0006] In order to solve the above-mentioned problems in the existing technology, the purpose of this utility model is to provide a high-precision pre-embedded bolt positioning frame for hydraulic engineering.

[0007] The technical solution adopted in this utility model includes:

[0008] The supporting frame consists of two parallel, spaced-apart crossbeams and several cross braces connecting the two.

[0009] The limiting assembly includes at least two sets connected to the support frame. The limiting assembly includes a web and a flange plate fixedly connected to the top of the web. A groove for fitting the edge guard steel is formed between the web and the flange plate.

[0010] Multiple mounting holes are provided along the length of the crossbeam for inserting pre-embedded screws.

[0011] An adjusting component, connected to the pre-embedded screw and supported on the top of the crossbeam, is used to limit the installation height of the pre-embedded screw.

[0012] As a preferred embodiment of this utility model, the width of the web plate is adapted to the spacing between the two edge guard angle steels, and its two side walls respectively abut against the inner side surface of the web plate of the adjacent edge guard angle steels.

[0013] As a preferred embodiment of this invention, the connection between the web and the crossbeam is as follows:

[0014] Welded connection;

[0015] Or a bolted connection structure, including a connection hole on the crossbeam and fasteners passing through the connection hole.

[0016] As a preferred embodiment of the present invention, the flanges are provided at both ends of the web in the length direction, and the two sets of flanges extend along their opposite sides.

[0017] As a preferred embodiment of this invention, the web plate and the flange plate are made of angle steel or square steel.

[0018] As a preferred embodiment of this utility model, the mounting hole is a circular hole, and a plurality of the mounting holes are linearly distributed along their length direction. A replaceable guide bushing is provided in the mounting hole, and the inner diameter of the guide bushing is adapted to the outer diameter of the pre-embedded screw to constrain the radial offset of the pre-embedded screw.

[0019] As a preferred embodiment of this utility model, the adjusting component is an adjusting nut, which is threaded into the pre-embedded screw to precisely adjust the ground clearance of the pre-embedded screw.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model is a high-precision pre-embedded bolt positioning frame for hydraulic engineering. It features mounting holes on a support frame to create locating holes for pre-embedded bolt installation. A locating component is connected to the support frame, positioning the frame between two edge angle steels. This ensures the mounting holes on the support frame correspond to the pre-embedded bolt positions, preventing significant positional shifts after insertion. After the pre-embedded bolt is inserted into the mounting hole, an adjusting nut is installed at the upper end of the bolt extending from the support frame. The threaded engagement between the adjusting nut and the bolt further facilitates the installation. This device allows for adjustment of the installation height of the pre-embedded screws. After positioning, the screws are reinforced and welded at the bottom with reinforcing steel bars to prevent displacement of the lower end and to avoid displacement or deviation between the screws during the compaction of concrete pouring. The positioning frame allows for quick positioning of the pre-embedded screws between the edge angle steel and provides double-limiting for the upper and lower ends of the screws, effectively improving the ease of installation. It replaces manual measurement and adjustment of installation intervals, height, and offset angles, significantly improving installation accuracy and efficiency. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the construction structure of this utility model;

[0025] Figure 3 This is a partial structural schematic diagram of the present invention.

[0026] 1. Support frame; 2. Limiting component; 3. Mounting hole; 4. Adjusting component; 5. Edge guard angle steel; 6. Embedded bolt; 7. Steel truss; 8. Reinforcing steel; 11. Crossbeam; 12. Cross brace; 21. Web plate; 22. Flange plate; 23. Groove; 31. Limiting sleeve. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] The following is combined Figure 1-3 This invention describes a high-precision pre-embedded bolt positioning frame for hydraulic engineering, comprising:

[0030] The support frame 1 consists of two parallel and spaced horizontal beams 11 and several horizontal braces 12 connecting the two. The horizontal beams 11 and the horizontal braces 12 are connected to form the support frame 1. The width of the support frame 1 is slightly smaller than the distance between the two sets of edge guard angle steels 5.

[0031] The limiting component 2 is provided in at least two sets and connected to the support frame 1. The limiting component 2 includes a web plate 21 and a flange plate 22 fixedly connected to the top of the web plate 21. A groove 23 for fitting the edge guard angle steel 5 is formed between the web plate 21 and the flange plate 22.

[0032] Multiple mounting holes 3 are provided along the length of the crossbeam 11. The spacing between the mounting holes 3 is set according to the actual pre-embedded installation spacing. They are used to insert pre-embedded screws 6, which restrict the installation interval and vertical angle of the pre-embedded screws 6 to replace the traditional manual positioning. The bottoms of four adjacent pre-embedded screws 6 after being limited are reinforced by welding reinforcing steel bars 8 together and then welded to the steel truss 7 to limit the upper and lower ends of the pre-embedded screws 6. The mounting holes 3 on the support frame 1 are used to limit the upper end of the pre-embedded screws 6, which effectively prevents the pre-embedded screws 6 from shifting during the vibration after concrete pouring, effectively reduces the installation error of the pre-embedded screws 6, and improves construction efficiency.

[0033] Adjusting component 4 is connected to the pre-embedded screw 6 and supported on the top of the crossbeam 11. It is used to limit the installation height of the pre-embedded screw 6. Adjusting component 4 can control the installation height of the pre-embedded screw 6 from the ground and adjust it according to the actual pre-embedded depth to replace the traditional manual holding adjustment.

[0034] Please refer to Figure 1 and Figure 3 As shown, the width of the web plate 21 is adapted to the spacing between the two edge guard angle steels 5, and its two side walls respectively abut against the inner side of the web plate 21 of the adjacent edge guard angle steels 5. The width of the guard plate is adapted to the spacing between the two edge guard angle steels 5. The web plate 21 is fitted between the two edge guard angle steels 5. The flange plate 22 is fixedly connected to the web plate 21 and forms a groove 23 so that the web plate 21 and the flange plate 22 overlap on the edge guard angle steel 5.

[0035] Please refer to Figure 3 As shown, the connection between the web 21 and the crossbeam 11 is as follows:

[0036] Welded connection;

[0037] Alternatively, a bolted connection structure may be used, including a connection hole on the crossbeam 11 and fasteners passing through the connection hole. The connection between the web plate 21 and the support frame 1 is fixed by opening a connection hole on the crossbeam 11 and using bolts.

[0038] Please refer to Figure 1 As shown, the web plate 21 has flange plates 22 at both ends along its length. The two sets of flange plates 22 extend along their opposite sides. The grooves 23 are located on the outer sides of both ends of the web plate 21. When positioning the pre-embedded screw 6, the web plate 21 can be embedded between the two edge angle steels 5, and the grooves 23 overlap the edge angle steels 5 to realize the positioning connection of the support frame 1 on the edge angle steels 5.

[0039] Please refer to Figure 3As shown, in the first embodiment of the web plate 21, the web plate 21 is an angle steel, which has a relatively low mass and can facilitate the movement of the positioning frame; in another embodiment of the web plate 21, the web plate 21 is a square steel. In actual construction, after the pre-embedded screw 6 is positioned and connected, its bottom needs to be welded to the reinforcing steel bar 8 to strengthen the fixation. The square steel can improve its overall strength so as to prevent deformation caused by heat transfer during welding, which would affect the installation accuracy of the pre-embedded screw 6.

[0040] Please refer to Figure 3 As shown, in one embodiment of the mounting hole 3, the mounting hole 3 is a circular hole, and multiple mounting holes 3 are linearly distributed along their length direction, allowing the pre-embedded screw 6 to pass through directly. In another embodiment of the mounting hole 3, a replaceable guide bushing is provided inside the mounting hole 3. The inner diameter of the guide bushing is adapted to the outer diameter of the pre-embedded screw 6 to constrain the radial offset of the pre-embedded screw 6. The limiting sleeve 31 can provide a specific channel for the pre-embedded screw 6 to pass through, avoiding the pre-embedded screw 6 from being blocked at the upper and lower mounting holes 3 of the square tube due to vertical angle deviation. On the other hand, the adaptability of the positioning frame can be improved by changing the diameter of the limiting sleeve 31 to accommodate the replacement of pre-embedded screws 6 with different diameters.

[0041] Please refer to Figures 1-2 As shown, the adjusting component 4 is an adjusting nut, which is threadedly engaged with the pre-embedded screw 6 to precisely adjust the ground clearance of the pre-embedded screw 6. After the pre-embedded screw 6 passes through the mounting hole 3, the ground clearance of the pre-embedded screw 6 is adjusted by threading the adjusting nut onto the pre-embedded screw 6 and using the threaded engagement with the pre-embedded screw 6.

[0042] Working principle of this utility model:

[0043] Two crossbeams 11 are welded together with several cross braces 12, and mounting holes 3 are made on the crossbeams 11 so that the spacing and relative position of the mounting holes 3 on the two crossbeams 11 meet the requirements for the pre-embedded screws 6.

[0044] A limiting component 2 is connected to the top of the support frame 1. The width of the web plate 21 is slightly smaller than the distance between the two edge guard angle steels 5, so that the web plate 21 can be just embedded between the two edge guard angle steels 5. At the same time, the groove 23 formed between the flange plate 22 and the web plate 21 allows the limiting component 2 to overlap on the top of the edge guard angle steel 5, so as to realize the positioning of the support frame 1 between the two edge guard angle steels 5.

[0045] After the support frame 1 is positioned, the multiple mounting holes 3 on it are the positions for the pre-embedded screws 6. The pre-embedded screws 6 are inserted into the mounting holes 3, and then an adjusting nut is installed on the pre-embedded screws 6 that extend to the upper end of the support frame 1. The bottom of the adjusting nut abuts against the upper end of the support frame 1. The pre-embedded height of the pre-embedded screws 6 can be adjusted by the threaded engagement between the adjusting nut and the pre-embedded screws 6.

[0046] The pre-embedded screw 6 is limited at the top by the mounting hole 3 to prevent large-angle displacement. After the height of the pre-embedded screw 6 is adjusted, four pre-embedded screws 6 are welded together in a cross manner using reinforcing steel bars 8. At the same time, the reinforcing steel bars 8 can also be welded to the pre-set steel truss 7 to prevent the mutual outward tilting between multiple pre-embedded screws 6, thereby limiting the bottom of the pre-embedded screw 6 and avoiding deviation during the compaction after concrete pouring.

[0047] After the pre-embedded screw 6 is positioned, it can be poured into the resulting casting space (see attached). Figure 2 Pour concrete into the dotted frame and compact the concrete. Then remove and move the positioning frame to the next work area to achieve the pre-embedded positioning of the next round of pre-embedded screws 6.

[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A high-precision pre-embedded bolt positioning frame for hydraulic engineering, characterized in that, include: The support frame (1) consists of two parallel and spaced crossbeams (11) and several cross braces (12) connecting the two. The limiting component (2) is provided in at least two sets and connected to the support frame (1). The limiting component (2) includes a web (21) and a flange plate (22) fixedly connected to the top of the web (21). A groove (23) for fitting the edge guard angle steel (5) is formed between the web (21) and the flange plate (22). The mounting holes (3) are provided in multiple places along the length of the crossbeam (11) for inserting the pre-embedded screws (6); Adjusting component (4) is connected to the pre-embedded screw (6) and supported on the top of the crossbeam (11) to limit the installation height of the pre-embedded screw (6).

2. The high-precision pre-embedded bolt positioning frame for hydraulic engineering according to claim 1, characterized in that: The width of the web (21) is adapted to the spacing between the two edge guard angles (5), and its two side walls respectively abut against the inner side of the web (21) of the adjacent edge guard angles (5).

3. A high-precision pre-embedded bolt positioning frame for hydraulic engineering according to claim 2, characterized in that, The connection between the web (21) and the crossbeam (11) is as follows: Welded connection; Or a bolted connection structure, including a connection hole provided on the crossbeam (11) and a fastener passing through the connection hole.

4. A high-precision pre-embedded bolt positioning frame for hydraulic engineering according to claim 3, characterized in that: Both ends of the web (21) in the length direction are provided with the flange plate (22), and the two sets of flange plates (22) extend along their opposite sides.

5. A high-precision pre-embedded bolt positioning frame for hydraulic engineering according to claim 4, characterized in that: The web plate (21) and the flange plate (22) are made of angle steel or square steel.

6. A high-precision pre-embedded bolt positioning frame for hydraulic engineering according to claim 1, characterized in that: The mounting hole (3) is a circular hole, and multiple mounting holes (3) are linearly distributed along their length. A replaceable guide bushing (31) is provided inside the mounting hole (3). The inner diameter of the guide bushing (31) is adapted to the outer diameter of the pre-embedded screw (6) to constrain the radial offset of the pre-embedded screw (6).

7. A high-precision pre-embedded bolt positioning frame for hydraulic engineering according to claim 1, characterized in that: The adjusting component (4) is an adjusting nut, which is threaded into the pre-embedded screw (6) to precisely adjust the ground clearance of the pre-embedded screw (6).

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