Movable and adjustable bevel wedge-shaped block template for precast beam

Abstract

The utility model discloses a movable adjusting bevel wedge-shaped block template for a precast beam, which belongs to the technical field of precast beams and comprises a base plate, four supporting mechanisms are arranged on the top surface of the base plate, and wedge-shaped block bottom dies are arranged at the tops of the four supporting mechanisms. According to the utility model, the two isosceles trapezoid blocks are driven to get close to each other or get away from each other through the threaded fit between the two-way screw rod and the nuts on the outer sides of the two isosceles trapezoid blocks, meanwhile, when the isosceles trapezoid blocks move, the lower sliding surfaces at the bottom ends of the isosceles trapezoid blocks and the lower inclined surfaces of the top surfaces of the lower supporting blocks slide mutually, and the lower sliding seats slide in the inner cavities of the lower sliding grooves; in addition, the upper sliding face of the top end of the isosceles trapezoid block and the upper inclined face of the bottom face of the upper supporting block slide relative to each other, the upper sliding base slides in an inner cavity of the upper sliding groove, the height of the upper supporting block and the height of the supporting rod are adjusted, meanwhile, the connecting strength among the lower supporting block, the isosceles trapezoid block and the upper supporting block is guaranteed, and practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated beams, in particular to a prefabricated beam movable and adjustable oblique wedge-shaped block template. Background Art

[0002] With economic development, road traffic has grown dramatically. Saturated traffic and an increase in heavy vehicles have led to an increasing number of precast bridge bearing failures. Most of these failures are due to shear failure caused by bearing eccentricity. The primary cause is large dimensional errors in the wedge blocks at the bottom of the beam, resulting in uneven contact with the bearing. Repairing and replacing bridge bearings disrupts traffic and increases operating costs.

[0003] After searching, the utility model patent with announcement number CN216031517U discloses a micro-adjustment device for the bottom mold of the wedge block of a prefabricated beam, including a base plate, and four adjusting mechanisms are provided on the base plate. The four adjusting mechanisms are located at the four corners of the base plate, and the adjusting mechanism includes a screw, a fixed nut, a movable nut, a lower supporting block and an upper supporting block and two isosceles trapezoidal blocks. The lower supporting block is arranged on the base plate, and the two ends of its upper surface are respectively provided with inclined surfaces. The upper bottom surfaces of the two isosceles trapezoidal blocks are arranged opposite to each other and are respectively placed on the two inclined surfaces of the lower supporting block. One end of the screw passes through the fixed nut and the two isosceles trapezoidal blocks horizontally in sequence and is fixedly connected with the movable nut. The fixed nut is fixed on the adjacent isosceles trapezoidal block. The two ends of the lower surface of the upper supporting block are respectively provided with inclined surfaces. The two inclined surfaces of the upper supporting block are respectively placed on the two isosceles trapezoidal blocks; this patent can realize convenient, fast and accurate adjustment of the elevation of the wedge block bottom mold to ensure the installation accuracy of the wedge block at the bottom of the beam.

[0004] However, the aforementioned patent has the following drawbacks: The two isosceles trapezoidal blocks, the lower support block, and the upper support block lack effective connections, making it difficult to ensure stability among the lower support block, the isosceles trapezoidal blocks, and the upper support block. Furthermore, if the screw rod is not secured after adjustment, it can easily become loose. To address this, we propose a precast beam template with a movable and adjustable beveled wedge block. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a prefabricated beam movable and adjustable bevel wedge block template.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] The top of the two support blocks is fixedly provided with an upper support block, and the top of the two isosceles trapezoidal blocks is provided with an upper support block. The top of the two isosceles trapezoidal blocks is fixedly provided with a support rod. The top of the support rod is in contact with the bottom surface of the wedge block bottom mold. The two sides of the top surface of the lower support block are respectively provided with lower inclined surfaces, and the two lower inclined surfaces are respectively provided with a sliding groove. The top surfaces of the two isosceles trapezoidal blocks are provided with upper inclined surfaces on both sides of the bottom surface, and the bottom surfaces of the two upper inclined surfaces are respectively provided with upper slide grooves. The bottom surfaces of the two isosceles trapezoidal blocks are provided with sliding surfaces, and the bottom surfaces of the sliding surfaces are fitted with the top surfaces of the lower inclined surfaces. The bottom surfaces of the sliding surfaces are fixedly connected with a sliding seat, and the bottom end of the sliding seat is movably sleeved into the inner cavity of the sliding groove. The top surfaces of the two isosceles trapezoidal blocks are provided with upper sliding surfaces, and the top surfaces of the upper sliding surfaces are fixedly connected with the upper slide seat, and the top end of the upper slide seat is movably sleeved into the inner cavity of the upper slide groove. Adjustment mechanisms are provided on the two isosceles trapezoidal blocks, and a fixing mechanism is provided on the top of the lower supporting block.

[0008] As a preferred solution of the present invention, the adjustment mechanism includes movable holes opened on two isosceles trapezoidal blocks and nuts fixedly connected to the outside of the two isosceles trapezoidal blocks, the two nuts are threadedly sleeved with bidirectional screw rods, the bidirectional screw rods pass through the inner cavity of the movable hole, the middle part of the bidirectional screw rods is fixedly sleeved with a brake disk, the end of the bidirectional screw rods is fixedly connected to a hexagonal column, the end of the hexagonal column is provided with a screw hole, the outer side of the hexagonal column is sleeved with a knob, the knob is sleeved with a fastening screw, and the end of the fastening screw is threadedly sleeved to the inner cavity of the screw hole.

[0009] As a preferred solution of the present invention, the fixing mechanism includes an operating box fixedly connected to the top surface of the lower supporting block, a plurality of springs are fixedly connected to the bottom surface of the inner cavity of the operating box, the top ends of the plurality of springs are fixedly connected to an extrusion plate, the top surface of the extrusion plate is fixedly connected to a movable column, the top end of the movable column is movably sleeved to the top of the operating box and fixedly connected to a brake arc seat, the top surface of the brake arc seat is fitted with the side surface of the brake disc, a movable groove is provided on the side surface of the operating box, the end of the extrusion plate is fixedly connected to a pressing plate, and the end of the pressing plate passes through the movable groove and extends to the outside of the operating box.

[0010] As a preferred solution of the present invention, a hexagonal groove is provided on the side of the knob, the end of the hexagonal column is movably sleeved into the inner cavity of the hexagonal groove, and the inner wall of the hexagonal groove fits the side of the hexagonal column.

[0011] As a preferred solution of the present invention, the inner wall of the lower sliding groove is in contact with the side surface of the lower sliding seat, and the inner wall of the upper sliding groove is in contact with the side surface of the upper sliding seat.

[0012] As a preferred solution of the present invention, the side surface of the extrusion plate is in contact with the inner wall of the operation box.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) In the present invention, the two isosceles trapezoidal blocks are driven to move closer to or farther from each other by the threaded cooperation between the bidirectional screw and the nuts on the outer sides of the two isosceles trapezoidal blocks. At the same time, when the isosceles trapezoidal blocks move, the lower sliding surface at the bottom end of the isosceles trapezoidal blocks and the lower inclined surface of the top surface of the lower supporting block slide against each other, and the lower slide seat slides in the inner cavity of the lower slide groove. In addition, the upper sliding surface at the top end of the isosceles trapezoidal blocks and the upper inclined surface of the bottom surface of the upper supporting block slide against each other, and the upper slide seat slides in the inner cavity of the upper slide groove, thereby adjusting the height of the upper supporting block and the supporting rod, and ensuring the connection strength between the lower supporting block, the isosceles trapezoidal block and the upper supporting block, thereby ensuring the stability of the support mechanism in supporting the wedge block bottom mold, and having good practicality.

[0015] (2) In the present invention, after the position between the two isosceles trapezoidal blocks is adjusted by rotating the bidirectional screw, the elastic force of the spring is used to drive the extrusion plate, the movable column and the brake arc seat to move upward, so that the brake arc seat is stuck on the outside of the brake disk, and the friction between the brake arc seat and the brake disk is used to fix the brake disk and the bidirectional screw, thereby fixing the two isosceles trapezoidal blocks, avoiding the displacement of the isosceles trapezoidal blocks caused by the rotation of the bidirectional screw, and improving the working quality of the prefabricated beam movable adjustable bevel wedge block template. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is an exploded diagram of the structure of the support mechanism of the utility model;

[0018] Figure 3 This is an exploded view of the structure of the lower support block, upper support block and isosceles trapezoidal block of the utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the operating box of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the knob of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Base plate; 2. Support mechanism; 3. Lower supporting block; 4. Lower inclined surface; 5. Isosceles trapezoidal block; 6. Upper supporting block; 7. Support rod; 8. Wedge block bottom mold; 9. Fixing mechanism; 10. Adjusting mechanism; 11. Upper inclined surface; 12. Upper sliding surface; 13. Sliding groove; 14. Lower sliding seat; 15. Upper sliding groove; 16. Upper sliding seat; 17. Movable hole; 18. Nut; 19. Bidirectional screw; 20. Brake disc; 21. Hexagonal column; 22. Screw hole; 23. Knob; 24. Fastening screw; 25. Hexagonal groove; 26. Operating box; 27. Spring; 28. Extrusion plate; 29. Movable column; 30. Brake arc seat; 31. Movable groove; 32. Pressing plate; 33. Sliding surface. 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 embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0026] Example:

[0027] See also Figure 1-5A prefabricated beam movable and adjustable oblique wedge block template includes a base plate 1, the top surface of the base plate 1 is provided with four supporting mechanisms 2, the top of the four supporting mechanisms 2 is provided with a wedge block bottom mold 8, the supporting mechanism 2 includes a lower supporting block 3 fixedly connected to the top surface of the base plate 1, the top of the lower supporting block 3 is provided with two isosceles trapezoidal blocks 5, the top of the two isosceles trapezoidal blocks 5 is provided with an upper supporting block 6, the top surface of the upper supporting block 6 is fixedly connected with a supporting rod 7, the top of the supporting rod 7 is in contact with the bottom surface of the wedge block bottom mold 8, the two sides of the top surface of the lower supporting block 3 are respectively provided with lower inclined surfaces 4, the two lower inclined surfaces 4 are respectively provided with a sliding groove 13, the bottom surface of the upper supporting block 6 Upper inclined surfaces 11 are respectively provided on both sides, and upper slide grooves 15 are respectively opened on the bottom surfaces of the two upper inclined surfaces 11. The bottom surfaces of the two isosceles trapezoidal blocks 5 are respectively provided with sliding surfaces 33. The bottom surfaces of the sliding surfaces 33 are fitted with the top surfaces of the lower inclined surfaces 4. The bottom surfaces of the sliding surfaces 33 are fixedly connected with the sliding seat 14. The bottom end of the sliding seat 14 is movably sleeved into the inner cavity of the sliding groove 13. The top surfaces of the two isosceles trapezoidal blocks 5 are respectively provided with upper sliding surfaces 12. The top surfaces of the upper sliding surfaces 12 are fixedly connected with the upper slide seat 16. The top end of the upper slide seat 16 is movably sleeved into the inner cavity of the upper slide groove 15. Adjustment mechanisms 10 are provided on the two isosceles trapezoidal blocks 5, and a fixing mechanism 9 is provided on the top of the lower supporting block 3.

[0028] In this embodiment, the four supporting mechanisms 2 are located at the four corners of the top surfaces of the four base plates 1 .

[0029] For details, please refer to Figures 1 to 5 The adjustment mechanism 10 includes a movable hole 17 opened on the two isosceles trapezoidal blocks 5 and a nut 18 fixedly connected to the outside of the two isosceles trapezoidal blocks 5. The two nuts 18 are threaded with a bidirectional screw rod 19, which passes through the inner cavity of the movable hole 17. The middle part of the bidirectional screw rod 19 is fixedly sleeved with a brake disc 20. The end of the bidirectional screw rod 19 is fixedly connected to a hexagonal column 21. A screw hole 22 is opened at the end of the hexagonal column 21. A knob 23 is sleeved on the outside of the hexagonal column 21. A fastening screw 24 is sleeved on the knob 23. The end of the fastening screw 24 is threadedly sleeved to the inner cavity of the screw hole 22.

[0030] In this embodiment, the two isosceles trapezoidal blocks 5 are driven to move closer to or away from each other through the threaded engagement between the bidirectional screw rod 19 and the two nuts 18 .

[0031] For details, please refer to Figure 1 、 Figure 2 and Figure 4The fixing mechanism 9 includes an operating box 26 fixedly connected to the top surface of the lower supporting block 3, and a plurality of springs 27 are fixedly connected to the bottom surface of the inner cavity of the operating box 26. The top ends of the plurality of springs 27 are fixedly connected to an extrusion plate 28, and the top surface of the extrusion plate 28 is fixedly connected to a movable column 29. The top end of the movable column 29 is movably sleeved to the top of the operating box 26 and is fixedly connected to a brake arc seat 30. The top surface of the brake arc seat 30 is in contact with the side surface of the brake disc 20. A movable groove 31 is provided on the side surface of the operating box 26, and a pressing plate 32 is fixedly connected to the end of the extrusion plate 28. The end of the pressing plate 32 passes through the movable groove 31 and extends to the outside of the operating box 26.

[0032] In this embodiment, the inner diameter of the top surface of the brake arc seat 30 is equal to the outer diameter of the brake disc 20 to ensure that the brake arc seat 30 abuts against the lower part of the brake disc 20, thereby braking the brake disc 20.

[0033] For details, please refer to Figure 2 and Figure 5 A hexagonal slot 25 is provided on the side of the knob 23 , and the end of the hexagonal column 21 is movably sleeved into the inner cavity of the hexagonal slot 25 , and the inner wall of the hexagonal slot 25 fits the side of the hexagonal column 21 .

[0034] In this embodiment, the bidirectional screw rod 19 is mounted on the knob 23 through the cooperation between the hexagonal slot 25 and the hexagonal column 21 .

[0035] For details, please refer to Figure 3 The inner wall of the lower slide groove 13 is in contact with the side surface of the lower slide seat 14 , and the inner wall of the upper slide groove 15 is in contact with the side surface of the upper slide seat 16 .

[0036] In this embodiment, the inner wall of the lower slide groove 13 is used to limit the lower slide seat 14, and the inner wall of the upper slide groove 15 is used to limit the upper slide seat 16 to ensure the stability between the lower support block 3 and the isosceles trapezoidal block 5, and the isosceles trapezoidal block 5 and the upper support block 6.

[0037] For details, please refer to Figure 4 , the side surface of the extrusion plate 28 is in contact with the inner wall of the operation box 26 .

[0038] In this embodiment, the stability of the squeezing plate 28 in the inner cavity of the operating box 26 is ensured.

[0039] Working principle: When in use, first adjust the top ends of the four support rods 7 to the same height, and install the wedge block bottom mold 8 to the support rods 7 on the top of the four support mechanisms 2, use a depth vernier caliper to measure the dimensions of the four corner points of the wedge block bottom mold 8, calculate the height difference, and then adjust the support mechanisms 2 corresponding to each corner point based on the height difference. When adjusting, press the pressing plate 32 to drive the extrusion plate 28, the movable column 29 and the brake arc seat 30 to move downward, and the spring 27 is in a compressed state. Then turn the knob 23 to drive the bidirectional screw rod 19 to rotate, and use the threaded transmission between the bidirectional screw rod 19 and the nuts 18 on the outside of the two isosceles trapezoidal blocks 5 to drive the two isosceles trapezoidal blocks 5 to move closer to or away from each other. When the isosceles trapezoidal block 5 moves, the sliding surface 33 at the bottom end of the isosceles trapezoidal block 5 and the lower inclined surface 4 on the top surface of the lower support block 3 slide against each other, and slide down. The seat 14 slides in the inner cavity of the sliding groove 13. In addition, the upper sliding surface 12 at the top of the isosceles trapezoidal block 5 and the upper inclined surface 11 on the bottom surface of the upper supporting block 6 slide with each other, and the upper sliding seat 16 slides in the inner cavity of the upper sliding groove 15 to ensure the connection strength between the lower supporting block 3, the isosceles trapezoidal block 5 and the upper supporting block 6. At the same time, the sliding of the isosceles trapezoidal block 5 is used to adjust the height of the upper supporting block 6 and the supporting rod 7, and then adjust the wedge block bottom mold 8 to be horizontal. Finally, the pressing plate 32 is released, and the elastic force of the spring 27 is used to drive the extrusion plate 28, the movable column 29 and the brake arc seat 30 to move up, so that the brake arc seat 30 is stuck on the outer side of the brake disk 20, and the friction between the brake arc seat 30 and the brake disk 20 is used to fix the brake disk 20 and the bidirectional screw 19, thereby fixing the two isosceles trapezoidal blocks 5 to ensure the stability after adjustment.

[0040] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and improved ideas of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A prefabricated beam movable adjustable bevel wedge block template, comprising a base plate (1), characterized in that: The top surface of the base plate (1) is provided with four supporting mechanisms (2), and the tops of the four supporting mechanisms (2) are provided with wedge-shaped block bottom molds (8). The supporting mechanism (2) includes a lower supporting block (3) fixedly connected to the top surface of the base plate (1), and two isosceles trapezoidal blocks (5) are provided on the top of the two isosceles trapezoidal blocks (5). An upper supporting block (6) is provided on the top of the upper supporting block (6), and a supporting rod (7) is fixedly connected to the top surface of the upper supporting block (6). The top of the supporting rod (7) is in contact with the bottom surface of the wedge-shaped block bottom mold (8). Lower inclined surfaces (4) are respectively provided on both sides of the top surface of the lower supporting block (3), and a lower sliding groove (13) is respectively opened on the two lower inclined surfaces (4). Upper inclined surfaces (11) are respectively provided on both sides of the bottom surface of the upper supporting block (6). The bottom surfaces of the two upper inclined surfaces (11) are respectively provided with upper slide grooves (15), and the bottom surfaces of the two isosceles trapezoidal blocks (5) are both provided with sliding surfaces (33), the bottom surfaces of the sliding surfaces (33) and the top surfaces of the lower inclined surfaces (4) are in contact with each other, and the bottom surfaces of the sliding surfaces (33) are fixedly connected with a lower sliding seat (14), and the bottom end of the lower sliding seat (14) is movably sleeved into the inner cavity of the sliding groove (13). The top surfaces of the two isosceles trapezoidal blocks (5) are both provided with upper slide surfaces (12), and the top surfaces of the upper slide surfaces (12) are fixedly connected with an upper slide seat (16), and the top end of the upper slide seat (16) is movably sleeved into the inner cavity of the upper slide groove (15). The two isosceles trapezoidal blocks (5) are provided with adjustment mechanisms (10), and the top of the lower support block (3) is provided with a fixing mechanism (9).

2. The movable and adjustable bevel wedge-shaped prefabricated beam template according to claim 1, characterized in that: The adjusting mechanism (10) comprises a movable hole (17) provided on two isosceles trapezoidal blocks (5) and a nut (18) fixedly connected to the outer sides of the two isosceles trapezoidal blocks (5); a bidirectional screw rod (19) is threadedly sleeved on the two nuts (18); the bidirectional screw rod (19) passes through the inner cavity of the movable hole (17); a brake disc (20) is fixedly sleeved on the middle part of the bidirectional screw rod (19); an end of the bidirectional screw rod (19) is fixedly connected to a hexagonal column (21); a screw hole (22) is provided at the end of the hexagonal column (21); a knob (23) is sleeved on the outer side of the hexagonal column (21); a fastening screw (24) is sleeved on the knob (23); and the end of the fastening screw (24) is threadedly sleeved to the inner cavity of the screw hole (22).

3. The movable and adjustable bevel wedge-shaped precast beam template according to claim 2, characterized in that: The fixing mechanism (9) includes an operating box (26) fixedly connected to the top surface of the lower supporting block (3), a plurality of springs (27) are fixedly connected to the bottom surface of the inner cavity of the operating box (26), the top ends of the plurality of springs (27) are fixedly connected to an extrusion plate (28), the top surface of the extrusion plate (28) is fixedly connected to a movable column (29), the top end of the movable column (29) is movably sleeved to the top of the operating box (26) and fixedly connected to a brake arc seat (30), the top surface of the brake arc seat (30) is in contact with the side surface of the brake disc (20), a movable groove (31) is provided on the side surface of the operating box (26), the end of the extrusion plate (28) is fixedly connected to a pressing plate (32), and the end of the pressing plate (32) passes through the movable groove (31) and extends to the outside of the operating box (26).

4. The movable and adjustable bevel wedge-shaped precast beam template according to claim 2, characterized in that: A hexagonal groove (25) is provided on the side of the knob (23), and the end of the hexagonal column (21) is movably sleeved into the inner cavity of the hexagonal groove (25), and the inner wall of the hexagonal groove (25) and the side of the hexagonal column (21) are in contact with each other.

5. The movable and adjustable bevel wedge-shaped prefabricated beam template according to claim 1, characterized in that: The inner wall of the lower slide groove (13) is in contact with the side surface of the lower slide seat (14), and the inner wall of the upper slide groove (15) is in contact with the side surface of the upper slide seat (16).

6. The movable and adjustable bevel wedge-shaped precast beam template according to claim 3, characterized in that: The side surface of the extrusion plate (28) is in contact with the inner wall of the operation box (26).

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