A rapid formwork support tool for the backrest of a curbstone

Abstract

The present invention belongs to the field of municipal engineering construction, and particularly relates to a rapid formwork support tool for the curb backrest, which includes a left support leg, a right support leg and a cross beam. A tension spring is connected between the left support leg and the right support leg; a chute A and a sliding hole A are provided at the lower part of the left support leg. A pressing plate A is arranged in the chute A. The right end of the pressing plate A is connected to a pressing plate C, and a bolt C is threadedly connected to the right side of the pressing plate A; a chute B and a sliding hole B are provided at the lower part of the right support leg. A slider B is connected to the pressing plate B, and the slider B is connected to a bolt B; the right side of the cross beam is internally hollow, and an inner hole communicating with the hollow part is provided on the left side. A cross bar is arranged in the inner hole, and a spring is sleeved on the left side of the cross bar; the cross bar is connected to a support rod, and stoppers are arranged above and below the support rod. Openings are provided on the upper surface and the lower surface of the cross beam. When the stoppers rotate, they can enter the inside of the cross beam from the openings. The formwork support tool of the present invention only requires one person to place the formwork support tool and one person to set up the formwork, and the construction efficiency is significantly improved, reducing the manual formwork support time.

Description

Technical Field

[0001] The present invention belongs to the field of municipal engineering construction, and particularly relates to a rapid formwork support tool for the backrest of a curbstone. Background Technique

[0002] At present, for the construction of curbstones on municipal roads, the conventional construction method is to use steel bars or gantry frames as external supports, and bricks are used as internal supports at the middle position between the formwork and the curbstone. This is time-consuming and laborious, and it is easy to slide back and forth, and it is easy to have the phenomenon of formwork displacement during the pouring process, occupying the green belt area. Summary of the Invention

[0003] The problem to be solved by the present invention is to overcome the deficiencies of the background technique and provide a rapid formwork support tool for the backrest of a curbstone.

[0004] The present invention is realized through the following technical solutions:

[0005] A rapid formwork support tool for a curb backrest, comprising a left support leg and a right support leg. The top of the left support leg is fixedly connected to the left end of a cross beam, and the socket joint on the upper part of the right support leg is slidably sleeved on the right end of the cross beam. A tension spring is connected between the left support leg and the right support leg, and the tension spring is in a stretched state. The pull rings at both ends of the tension spring are respectively located on the left side surface of the left support leg and the right side surface of the right support leg; on the right side surface of the lower part of the left support leg, there is a vertical chute A, and on the left side surface of the lower part of the left support leg, a vertical sliding hole A corresponding to the chute A is provided. The sliding hole A communicates with the chute A. Inside the chute A, there is a horizontal pressing plate A. The left end of the pressing plate A slides up and down in the chute A. The right end of the pressing plate A is connected downward to a pressing plate C. The left end of the pressing plate A is connected to a bolt A, and the bolt A passes through the sliding hole A and is fixed by a nut A. An internal threaded hole is provided on the right side surface of the pressing plate A, and a bolt C is threadedly connected in the internal threaded hole; on the left side surface of the lower part of the right support leg, there is a vertical chute B, and on the right side surface of the lower part of the right support leg, a vertical sliding hole B corresponding to the chute B is provided. The sliding hole B communicates with the chute B. A slider B is slidably connected inside the chute B. The slider B is connected to a horizontal pressing plate B. The slider B is connected to a bolt B, and the bolt B passes through the sliding hole B and is fixed by a nut B; the right side inside the cross beam is hollow, and there is an inner hole in the left side inside the cross beam, which communicates with the hollow part. The inner hole penetrates the left side surface of the cross beam. Inside the inner hole, there is a cross bar. The left end of the cross bar is fixedly connected to a pull rod head, and the pull rod head is located at the inner hole on the left side surface of the cross beam; a spring is sleeved on the left part of the cross bar. The left end of the spring is fixed on the inner wall of the cross beam, and the right end of the spring is fixed on the cross bar; three horizontal support rods are fixedly connected to the right part of the cross bar. The support rods are perpendicular to the cross bar. Symmetrical stoppers are provided above and below the support rods. The stoppers are rotatably connected to a rotating shaft parallel to the support rods, and the rotating shaft is fixed on the inner wall of the cross beam. The stoppers rotate around the rotating shaft; the stoppers are divided into a horizontal block and a right-angled triangular block. The inclined surface of the right-angled triangular block is located on the left side. The horizontal block is connected to two connecting rods, and the end of the connecting rod is provided with a movable frame. The movable frame is sleeved on the support rod, and the vertical length of the movable frame is greater than the diameter of the support rod; openings are provided on the upper surface and the lower surface of the cross beam corresponding to the positions of the stoppers. The right-angled triangular block protrudes from the cross beam through the opening. When the stopper rotates, the right-angled triangular block can enter the inside of the cross beam through the opening.

[0006] Further, the distance between the stoppers is greater than the thickness of the socket joint.

[0007] Further, both the nut A and the nut B are wing nuts.

[0008] Further, both ends of the support rod are provided with retaining plates.

[0009] Further, the surface of the pressing plate C facing the left support leg is an inclined surface.

[0010] The beneficial effects of the present invention:

[0011] 1. The formwork support tool of the present invention only requires one person to place the formwork support tool and one person to set up the formwork, significantly improving the construction efficiency and reducing the manual formwork time.

[0012] 2. The formwork support tool of the present invention has an internal support and external extrusion, is firm and reliable, and will not have situations of sliding or formwork displacement.

[0013] 3. The formwork support tool of the present invention can adjust the width according to the actual situation, with a wider adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view structural schematic diagram of the present invention.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the present invention.

[0016] Figure 3 It is a structural schematic diagram of the chute A and the sliding hole A on the left support leg of the present invention.

[0017] Figure 4 It is a structural schematic diagram of the crossbar part of the present invention.

[0018] Figure 5 It is a partially enlarged structural schematic diagram of the crossbar part of the present invention.

[0019] Figure 6 It is a structural schematic diagram of the crossbeam of the present invention.

[0020] In the figure: 1 left support leg, 2 right support leg, 3 crossbeam, 4 tension spring, 5 pull ring, 6 chute A, 7 sliding hole A, 8 pressing plate A, 9 pressing plate C, 10 nut A, 11 chute B, 12 sliding hole B, 13 slider B, 14 pressing plate B, 15 nut B, 16 opening, 17 inner hole, 18 crossbar, 19 socket joint, 20 bolt C, 21 spring, 22 support rod, 23 stop block, 24 rotating shaft, 25 horizontal block, 26 right-angled triangular block, 27 connecting rod, 28 movable frame, 29 pull rod head. DETAILED DESCRIPTION OF THE INVENTION

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0022] The curbstone backrest quick formwork tool of the present invention is in the shape of a door as a whole, and includes a left supporting leg 1, a right supporting leg 2, and a crossbeam 3. The left supporting leg 1, the right supporting leg 2, and the crossbeam 3 are all in the shape of a rectangular parallelepiped. The upper end surface of the left supporting leg 1 is fixedly connected to the lower surface of the left end of the crossbeam 3. An integrated sleeve joint 19 is provided at the upper end of the right supporting leg 2, and the right supporting leg 2 is sleeved on the right side of the crossbeam 3 through the sleeve joint 19, and the right supporting leg 2 can slide left and right on the crossbeam 3 through the sleeve joint 19.

[0023] A tension spring 4 is connected between the left supporting leg 1 and the right supporting leg 2. The tension spring 4 is parallel to the crossbeam 3. When the formwork tool works normally, the tension spring 4 is in a stretched state. Pull rings 5 ​​are connected to both ends of the tension spring 4. The two ends of the tension spring 4 pass through the left supporting leg 1 and the right supporting leg 2 respectively. The pull rings 5 ​​at both ends are respectively located on the left side of the left supporting leg 1 and the right side of the right supporting leg 2. By pulling the pull ring 5 and stretching the tension spring 4, the distance between the left supporting leg 1 and the right supporting leg 2 can be adjusted.

[0024] A vertical slide groove A6 is provided on the right side surface of the lower part of the left supporting leg 1, and a vertical slide hole A7 corresponding to the slide groove A6 is provided on the left side surface of the lower part of the left supporting leg 1, and the slide hole A7 is connected to the slide groove A6. A horizontal pressing plate A8 is slidably connected in the slide groove A6, and the left end of the pressing plate A8 slides up and down in the slide groove A6. The pressing plate A8 is a rectangular plate, and the pressing plate A8 is perpendicular to the left supporting leg 1. The left end of the pressing plate A8 is connected to a horizontal bolt A, and the bolt A can be fixed by a nut A10 after passing through the slide hole A7. The upper and lower positions of the pressing plate A8 are adjusted by moving the bolt A up and down along the slide hole A7, and the pressing plate A8 is fixed to the left supporting leg 1 by the nut A10. Preferably, for the convenience of fixing, the nut A10 is preferably a butterfly nut. A pressing plate C9 is connected downward to the right end of the pressing plate A8, and the pressing plate C9 is perpendicular to the pressing plate A8. Preferably, the side of the pressing plate C9 facing the left supporting leg 1 is an inclined surface, so that the pressing plate C9 is a triangular plate. The purpose of setting the side of the pressing plate C9 facing the left supporting leg 1 as an inclined surface is to adapt to different template thicknesses and better clamp templates of different thicknesses. An internal threaded hole is provided on the right side of the pressing plate A8 facing the inside of the pressing plate A8. The internal thread of the internal threaded hole is connected to the bolt C20. By rotating the bolt C20, the length of the bolt C20 can be adjusted. The bolt C20 is used to support the side of the curb and is supported between the template and the curb.

[0025] Similarly, a vertical sliding groove B11 is provided on the left side of the lower part of the right support leg 2. A vertical sliding hole B12 corresponding to the sliding groove B11 is provided on the right side of the lower part of the right support leg 2, and the sliding hole B12 communicates with the sliding groove B11. A slider B13 is slidably connected in the sliding groove B11, and the slider B13 slides up and down in the sliding groove B11. A bolt B is connected to the right side surface of the slider B13. After passing through the sliding hole B12, the bolt B is fixed by a nut B15. Similarly, preferably, the nut B15 is a wing nut. The slider B13 is integrally connected with a transverse pressing plate B14. The pressing plate B14 is a rectangular plate, and the pressing plate B14 is perpendicular to the right support leg 2. By moving the bolt B up and down along the sliding hole B12, the position of the slider B13 is adjusted, thereby adjusting the position of the pressing plate B14.

[0026] The right part of the cross beam 3 is hollow inside, and structures such as a cross bar 18, a support rod 22, and a stop block 23 are provided inside. An inner hole 17 is provided in the left part of the cross beam 3. The inner hole 17 communicates with the hollow part on the right side of the cross beam 3, and the inner hole 17 penetrates the left side surface of the cross beam 3. A cross bar 18 is provided inside the cross beam 3. The left part of the cross bar 18 is located in the inner hole 17, and the right part is located in the hollow part.

[0027] The left end of the cross bar 18 is fixedly connected with a pull rod head 29. The pull rod head 29 is located on the left side surface of the cross beam 3, corresponding to the position of the inner hole 17. A spring 21 is sleeved on the left part of the cross bar 18. The left end of the spring 21 is fixed on the inner wall of the cross beam 3, and the right end of the spring 21 is fixed on the cross bar 18. In this way, by pulling the pull rod head 29 outwards, the cross bar 18 is pulled out from the inner hole 17, and the spring 21 is compressed. When the pull rod head 29 is released, due to the elastic force of the spring 21, the cross bar 18 is pulled back into the inner hole 17 and returns to its original position. At this time, the spring 21 is in a natural elongation state.

[0028] Three horizontal support rods 22 are fixedly connected to the right part of the cross bar 18 located in the hollow position inside the cross beam 3. The support rods 22 are perpendicular to the cross bar 18. Symmetric stop blocks 23 are provided at both the upper and lower positions of the support rods 22, with a total of six stop blocks 23, three on the upper side and three symmetrically on the lower side. The stop blocks 23 are rotatably connected to a rotating shaft 24 parallel to the support rods 22. The rotating shaft 24 is fixed on the inner wall of the cross beam 3. The stop blocks 23 can rotate around the rotating shaft 24 but cannot move. The stop blocks 23 are divided into a horizontal block 25 and a right-angled triangular block 26. The inclined surface of the right-angled triangular block 26 is located on the left side. Two connecting rods 27 are perpendicularly connected to each horizontal block 25. An end of the connecting rod 27 is integrally provided with a movable frame 28. The movable frame 28 is sleeved on the support rod 22, and the vertical length of the movable frame 28 is greater than the diameter of the support rod 22. To prevent the movable frame 28 from slipping off the support rod 22 during movement, preferably, a stop piece is provided on the outer side of the movable frame 28, that is, stop pieces are provided at both ends of each support rod 22. The stop pieces are not shown in the drawings.

[0029] Openings 16 are respectively provided at the positions corresponding to the stoppers 23 on the upper surface and the lower surface of the cross beam 3. The openings 16 are used for the screwing out and screwing in of the stoppers 23. The right-angled triangular block 26 of the stopper 23 protrudes from the cross beam 3 through the opening 16, and when the stopper 23 rotates, the right-angled triangular block 26 can enter the interior of the cross beam 3 through the opening 16. When the cross bar 18 is horizontally pulled to the left, it will drive the upper support rod 22 to move horizontally together, so that the movable frame 28 moves around the support rod 22, pulling the stopper 23 to rotate around the rotating shaft 24, causing the stopper 23 to rotate into the interior of the cross beam 3 from the opening 16. At this time, the slidable right support leg 2 can be adjusted in position or removed from the cross beam 3.

[0030] Preferably, the distance between adjacent stoppers 23 is greater than the thickness of the socket joint 19, that is, the socket joint 19 can be placed between any two stoppers 23, and the position of the socket joint 19 is adjusted according to the construction width.

[0031] The following briefly introduces the usage method of the tool of the present invention: Pull the pull rod head 29 outwards, the stopper 23 rotates and retracts into the interior of the cross beam 3, pull the pull ring 5 to adjust the distance between the left support leg 1 and the right support leg 2, place the left support leg 1 and the right support leg 2 according to the width of the curbstone and the formwork, the left support leg 1 is close to the outer side of the formwork, the right support leg 2 is close to the outer side of the curbstone, after adjustment, release the pull ring 5 and the pull rod head 29, the stopper 23 blocks the socket joint 19, and then adjust the heights of the pressing plate A8 and the pressing plate B14 respectively according to the heights of the curbstone and the formwork, so that the lower surface of the pressing plate A8 tightly presses the upper surface of the formwork, and then fasten the pressing plate A8 through the nut A10, the lower surface of the pressing plate B14 tightly presses the upper surface of the curbstone, and then fasten the pressing plate B14 through the nut B15, and then rotate the bolt C20 so that the right end of the bolt C20 abuts against the left side surface of the curbstone.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A rapid formwork support tool for the curb backrest, characterized in that: It includes a left support leg (1) and a right support leg (2). The top of the left support leg (1) is fixedly connected to the left end of a cross beam (3). The socket joint (19) on the upper part of the right support leg (2) is slidably sleeved on the right end of the cross beam (3). A tension spring (4) is connected between the left support leg (1) and the right support leg (2). The tension spring (4) is in a stretched state. The pull rings (5) at both ends of the tension spring (4) are respectively located on the left side surface of the left support leg (1) and the right side surface of the right support leg (2). A vertical chute A (6) is provided on the right side surface of the lower part of the left support leg (1). A vertical sliding hole A (7) corresponding to the chute A (6) is provided on the left side surface of the lower part of the left support leg (1). The sliding hole A (7) communicates with the chute A (6). A horizontal pressing plate A (8) is provided in the chute A (6). The left end of the pressing plate A (8) slides up and down in the chute A (6). The right end of the pressing plate A (8) is connected downward to a pressing plate C (9). The left end of the pressing plate A (8) is connected to a bolt A. The bolt A passes through the sliding hole A (7) and is fixed by a nut A (10). An internal threaded hole is provided on the inner side surface of the right side of the pressing plate A (8). A bolt C (20) is threadedly connected in the internal threaded hole. A vertical chute B (11) is provided on the left side surface of the lower part of the right support leg (2). A vertical sliding hole B (12) corresponding to the position of the chute B (11) is provided on the right side surface of the lower part of the right support leg (2). The sliding hole B (12) communicates with the chute B (11). A slider B (13) is slidably connected in the chute B (11). The slider B (13) is connected to a horizontal pressing plate B (14). The slider B (13) is connected to a bolt B. The bolt B passes through the sliding hole B (12) and is fixed by a nut B (15). The right side inside of the cross beam (3) is hollow. An inner hole (17) communicating with the hollow part is provided inside the left side of the cross beam (3). The inner hole (17) penetrates the left side surface of the cross beam (3). A cross bar (18) is provided in the inner hole (17). The left end of the cross bar (18) is fixedly connected to a pull rod head (29). The pull rod head (29) is located at the inner hole (17) on the left side surface of the cross beam (3). A spring (21) is sleeved on the left part of the cross bar (18). The left end of the spring (21) is fixed on the inner wall of the cross beam (3). The right end of the spring (21) is fixed on the cross bar (18). Three horizontal support rods (22) are fixedly connected to the right part of the cross bar (18). The support rods (22) are perpendicular to the cross bar (18). Symmetrical stoppers (23) are provided above and below the support rods (22). The stoppers (23) are rotatably connected to a rotating shaft (24) parallel to the support rods (22). The rotating shaft (24) is fixed on the inner wall of the cross beam (3). The stoppers (23) rotate around the rotating shaft (24). The stoppers (23) are divided into a horizontal block (25) and a right-angled triangular block (26). The inclined surface of the right-angled triangular block (26) is located on the left side. The horizontal block (25) is connected to two connecting rods (27). The ends of the connecting rods (27) are provided with movable frames (28). The movable frames (28) are sleeved on the support rods (22). The vertical length of the movable frames (28) is greater than the diameter of the support rods (22).Openings (16) are provided at positions corresponding to the stoppers (23) on the upper and lower surfaces of the cross beam (3). The right-angled triangular blocks (26) protrude from the cross beam (3) through the openings (16), and when the stoppers (23) rotate, the right-angled triangular blocks (26) can enter the interior of the cross beam (3) through the openings (16); the distance between the stoppers (23) is greater than the thickness of the socket joint (19); the surface of the pressing plate C (9) facing the left support leg (1) is an inclined surface.; 2. The rapid formwork support tool for the curb backrest according to claim 1, characterized in that: The nut A (10) and the nut B (15) are both wing nuts.

3. The rapid formwork support tool for the curb backrest according to claim 1, characterized in that: Both ends of the support rod (22) are provided with retaining plates.

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