Tensioning platform for threaded steel bars on inclined surface of concrete

Abstract

The invention provides a concrete inclined plane twisted steel tensioning platform which comprises a base and a supporting seat, walking wheels are arranged at the bottom of the base, a supporting plate is fixedly arranged at the top of the base, a transverse plate is horizontally arranged at the top of the supporting plate, a sliding groove is formed in the transverse plate, and at least one sliding plate is horizontally arranged on the sliding groove. Each sliding plate is provided with a jack, the transverse plate is further provided with a through groove communicated with the corresponding sliding groove, the output ends of the jacks vertically penetrate through the transverse plate downwards and then stretch into the through grooves, the supporting seats are arranged at the ends, away from the supporting plate, of the transverse plate, and walking wheels are also arranged at the bottoms of the supporting seats. The problem that in the prior art, when a jack conducts prestress tensioning on vertical twisted steel on a slope, operation is inconvenient, and construction efficiency is affected is solved.

Description

Technical Field

[0001] The invention relates to the technical field of threaded steel bar tensioning, and in particular to a threaded steel bar tensioning platform for concrete slopes. Background Art

[0002] In bridge construction, threaded steel bar tensioning technology is a core technology in prestressed concrete structure construction. The threaded steel bars are connected by jacks to gradually apply tensioning force to the threaded steel bars, so that the prestressed state required by the design can be achieved in the concrete, thereby improving the bearing capacity, crack resistance and durability of the bridge structure.

[0003] It is also necessary to tension the threaded steel bars on parts of the bridge that have slopes (such as abutment slopes, side slopes on both sides of the bridge, etc.). However, due to the large number of threaded steel bars to be tensioned and the fact that these threaded steel bars are on the slope, the installation position and operating surface of the jacks for tensioning the threaded steel bars are narrow, and it is also very troublesome to move the jacks to the next work area after tensioning a threaded steel bar each time. This results in low construction efficiency when prestressing the vertical threaded steel bars on the slope. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a platform for tensioning threaded steel bars on a concrete slope, which solves the problem in the prior art that the jack is inconvenient to operate when prestressing vertical threaded steel bars on a slope, affecting construction efficiency.

[0005] According to an embodiment of the present invention, a platform for tensioning threaded steel bars on a concrete slope includes a base and a support seat, wherein the bottom of the base is provided with walking wheels, a support plate is fixedly provided on the top of the base, a cross plate is horizontally provided on the top of the support plate, a slide groove is provided on the cross plate, at least one slide plate is horizontally provided on the slide groove, a jack is provided on each slide plate, a through groove connected to the slide groove is also provided on the cross plate, the output end of the jack vertically passes through the cross plate downward and extends into the through groove, the support seat is arranged at one end of the cross plate away from the support plate, and the bottom of the support seat is also provided with walking wheels.

[0006] Compared with the prior art, the present invention has the following beneficial effects: by adopting a horizontal plate set between the base and the support seat, a plurality of slides are slidably set on the slide, and the jack used for tensioning the threaded steel bars is set on the slide, so as to facilitate moving the jack to a suitable position for tensioning operation. The present device moves the working position of the jack from the inclined surface of the slope to the horizontal horizontal plate, thereby effectively avoiding the influence of excessive threaded steel bars on the inclined surface of the slope on the workers' operation and installation of the jack. The workers only need to move the present device to a suitable position and connect the output end of the jack to the threaded steel bar. There is no need to specially find the installation position of the jack every time and there is no need to install the jack on the inclined surface multiple times, which saves a lot of time for installing the jack and improves the construction efficiency.

[0007] Furthermore, a reinforcing strip is provided on the top of each slide plate, the reinforcing strip is fixedly connected to the slide plate, and one side of the reinforcing strip extends out of the slide plate.

[0008] Furthermore, it also includes a support rod, there is at least one support rod, the support rod is rotatably arranged at the bottom of the cross plate through a rotating shaft, and a support piece is rotatably arranged on the free end of the support rod.

[0009] Furthermore, each support rod is a telescopic rod.

[0010] Furthermore, it also includes an adjusting rod, each supporting rod has a thread groove at one end away from the horizontal plate, one end of the adjusting rod is threadedly connected to the supporting rod through the thread groove, and the other end of the adjusting rod is rotatably connected to the supporting member.

[0011] Furthermore, it also includes a mounting tube and a spring. The mounting tube is slidably sleeved on one end of the adjusting rod away from the supporting rod. One end of the spring is fixedly connected to the adjusting rod, and the other end of the adjusting rod is fixedly connected to the mounting tube.

[0012] Furthermore, the support member is a wedge-shaped block.

[0013] Furthermore, a slot is provided on the side wall of the support plate facing the support rod.

[0014] Furthermore, it also includes a rib plate, one side of the rib plate is fixedly connected to the base, and the other side of the rib plate is fixedly connected to the support plate.

[0015] Furthermore, a plurality of fences are fixedly provided on the top of the horizontal board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0017] Figure 2 This is an overall structural diagram from another perspective of an embodiment of the present invention.

[0018] Figure 3It is a top view of an embodiment of the present invention.

[0019] Figure 4 It is a side view of an embodiment of the present invention.

[0020] Figure 5 4 is a cross-sectional view of a support rod according to an embodiment of the present invention.

[0021] In the above drawings: 1. base; 2. walking wheel; 3. support plate; 4. cross plate; 5. skateboard; 6. jack; 7. support seat; 8. reinforcing slats; 9. support rod; 10. support member; 11. adjusting rod; 12. threaded groove; 13. mounting tube; 14. spring; 15. slot; 16. rib plate; 17. fence; 18. threaded steel bar. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] like Figure 1-3As shown, an embodiment of the present invention proposes a platform for tensioning threaded steel bars on a concrete slope, comprising a base 1 and a support seat 7. A walking wheel 2 is provided at the bottom of the base 1. A support plate 3 is fixedly provided on the top of the base 1. A cross plate 4 is horizontally provided on the top of the support plate 3. A slide groove is provided on the cross plate 4. At least one slide plate 5 is horizontally provided on the slide groove. A jack 6 is provided on each slide plate 5. A through groove connected to the slide groove is also provided on the cross plate 4. The output end of the jack 6 vertically passes through the cross plate 4 downward and extends into the through groove. The support seat 7 is arranged at one end of the cross plate 4 away from the support plate 3. A walking wheel 2 is also provided at the bottom of the support seat 7. When tensioning the threaded steel bar 18 on the inclined surface, the platform is moved to a predetermined position, and the walking wheel 2 is preferably a universal wheel. The worker slides the slide plate 5 so that the jack 6 on the slide plate 5 is directly above the threaded steel bar 18 to be tensioned. In this embodiment, the through groove and the slide groove are T-shaped, and the output end of the jack 6 passes downward through the through groove and is connected to the threaded steel bar 18 to be tensioned through a threaded sleeve, and the tensioning operation can be carried out. In this embodiment, two groups of jacks 6 are set. When one of the jacks 6 is performing the tensioning operation, the worker can connect the jack 6 on the other slide plate 5 with the other threaded steel bar 18 to be tensioned. During the tensioning process, the support seat 7 and the support plate 3 jointly support the cross plate 4. Preferably, the support seat 7 and the cross plate 4 slide The support seat 7 is provided with a T-shaped groove for the sliding of the cross plate 4 to adapt to slopes of different heights. After the tensioning is completed, the jack 6 and the threaded steel bar 18 are removed, and then the device is moved to another working area to tension another threaded steel bar 18. Through the function of this platform, the working platform for the jack 6 to tension is converted from an inclined plane to a horizontal plane, and the jack 6 is moved by the slide plate 5 to adapt to the threaded steel bars 18 in different positions, so that when the workers perform the tensioning operation, the operating surface of the jack 6 is large and there is no need to repeatedly install the jack 6. They only need to move the platform and adjust the position of the slide plate 5 and connect the jack 6 to the threaded steel bar 18 to be tensioned. The whole process is convenient and fast, and the construction efficiency is significantly improved.

[0024] like Figure 1-4 As shown, further, each slide plate 5 is provided with a reinforcing slat 8 on the top, the reinforcing slat 8 is fixedly connected to the slide plate 5, and one side of the reinforcing slat 8 extends out of the slide plate 5. Specifically, the reinforcing slat 8 is concave or in the shape of a mountain. When the jack 6 tensions the threaded steel bar 18, the slide plate 5 will be subjected to the vertical downward force of the jack 6. By fixing the reinforcing slat 8 on the top of the slide plate 5, one end of the reinforcing slat 8 extending out of the slide plate 5 is overlapped on the cross plate 4, so that the cross plate 4 provides auxiliary support to the slide plate 5, thereby preventing the slide plate 5 from being deformed after being subjected to the vertical force.

[0025] like Figure 1-4As shown, further, it also includes a support rod 9, at least one support rod 9, which is rotatably arranged at the bottom of the horizontal plate 4 through a rotating shaft, and a support member 10 is rotatably arranged on the free end of the support rod 9. In this embodiment, two support rods 9 are symmetrically arranged at the bottom of the horizontal plate 4. In order to further improve the stability and support strength of the device, the support rod 9 is rotated so that one end of the support rod 9 with the support member 10 abuts against the inclined surface, so that the support rod 9 provides auxiliary support to the horizontal plate 4, thereby improving the support strength of the horizontal plate 4. Preferably, a receiving groove is also provided at the bottom of the horizontal plate 4. When the support rod 9 is not needed later, the support rod 9 can be stored in the receiving groove, thereby reducing the occupied space. Furthermore, a limit pin can be provided in the receiving groove to limit the rotation of the support rod 9 in the receiving groove.

[0026] Furthermore, each support rod 9 is a telescopic rod. Since different slopes have different inclinations and heights, the support member 10 at the end of the support rod 9 can be well abutted against the slope by extending or shortening the telescopic rod. The telescopic rod can be selected from the prior art. Preferably, at the construction site, the support rod 9 with multiple telescopic stages can be made of square steel, steel bars and other materials.

[0027] like Figure 4-5 As shown, further, it also includes an adjustment rod 11, and each support rod 9 is provided with a thread groove 12 at one end away from the horizontal plate 4. One end of the adjustment rod 11 is threadedly connected to the support rod 9 through the thread groove 12, and the other end of the adjustment rod 11 is rotatably connected to the support member 10. In this embodiment, for cost, convenience and other factors, the telescopic rod is a multi-level adjustable telescopic rod, so the support member 10 may not just abut on the inclined surface. At this time, the worker can rotate the support member 10 or the adjustment rod 11 to make the adjustment rod 11 screw into or out of the thread groove 12, so that the adjustment rod 11 compensates for the gap position between the support member 10 and the inclined surface, so that the support member 10 can perfectly abut on the inclined surface to achieve the supporting effect on the horizontal plate 4.

[0028] like Figure 5 As shown, further, it also includes a mounting tube 13 and a spring 14. The mounting tube 13 is slidably sleeved on the end of the adjusting rod 11 away from the supporting rod 9. One end of the spring 14 is fixedly connected to the adjusting rod 11, and the other end of the adjusting rod 11 is fixedly connected to the mounting tube 13. The adjusting rod 11 is slidably connected to the mounting tube 13. Specifically, a guide groove is provided on the inner wall of the mounting tube 13, and a guide block is provided on the outer wall of the adjusting rod 11, so that the adjusting rod 11 will not slide out of the mounting tube 13 and cannot rotate relative to the mounting tube 13. By arranging the spring 14 in the mounting tube 13, on the one hand, the supporting member 10 can be closely attached to the inclined surface of the slope, and on the other hand, a reverse thrust can be exerted on the horizontal plate 4 to assist in supporting the horizontal plate 4.

[0029] like Figure 1 , 2 4, further, the support member 10 is a wedge block. In this embodiment, the support member 10 is a wedge block, which is rotatably arranged at the end of the support rod 9 away from the horizontal plate 4, and the inclined surface of the wedge block is in close contact with the inclined surface of the slope, thereby supporting the horizontal plate 4. Similarly, the support member 10 can also be a roller, and when the support rod 9 supports the horizontal plate 4, it is also more convenient to move the device to the next tensioning operation position.

[0030] like Figure 2 As shown, further, a slot 15 is provided on the side wall of the support plate 3 facing the support rod 9. When the support rod 9 is not needed to be supported on the inclined surface of the slope, the support rod 9 is rotated and extended so that the wedge block at the end of the support rod 9 is inserted into the slot 15, thereby realizing the triangular support of the support rod 9 to the cross plate 4. The spring 14 in the mounting cylinder 13 can also push the wedge block to press against the slot 15, so that the triangular support formed by the support rod 9 and the support plate 3 to the cross plate 4 is more stable.

[0031] like Figure 1-3 As shown, further, it also includes a rib plate 16, one side of the rib plate 16 is fixedly connected to the base 1, and the other side of the rib plate 16 is fixedly connected to the support plate 3. The rib plate 16 plays a role in strengthening the connection strength between the support plate 3 and the base 1.

[0032] like Figure 1-3 As shown, further, a plurality of fences 17 are fixedly provided on the top of the horizontal board 4. After the device is moved to the predetermined position, the worker needs to stand on the top of the horizontal board 4 to adjust the position of the jack 6 and start and stop the jack 6. The fence 17 can protect the worker and prevent the worker from falling on the horizontal board 4 and causing a safety accident.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A platform for tensioning threaded steel bars on a concrete slope, characterized in that: include: A base (1), wherein a walking wheel (2) is provided at the bottom of the base (1), a support plate (3) is fixedly provided at the top of the base (1), a horizontal plate (4) is horizontally provided at the top of the support plate (3), a slide groove is provided on the horizontal plate (4), at least one slide plate (5) is horizontally provided on the slide groove, each slide plate (5) is provided with a jack (6), and a through groove connected to the slide groove is also provided on the horizontal plate (4), and an output end of the jack (6) vertically passes through the horizontal plate (4) downward and then extends into the through groove; The support seat (7) is arranged at one end of the transverse plate (4) away from the support plate (3), and the bottom of the support seat (7) is also provided with a walking wheel (2).

2. A platform for tensioning threaded steel bars on an inclined surface of concrete as claimed in claim 1, characterized in that: A reinforcing strip (8) is provided on the top of each slide plate (5), the reinforcing strip (8) is fixedly connected to the slide plate (5), and one side of the reinforcing strip (8) extends out of the slide plate (5).

3. A platform for tensioning threaded steel bars on an inclined surface of concrete as claimed in claim 1, characterized in that: It also includes a support rod (9), at least one support rod (9), the support rod (9) is rotatably arranged at the bottom of the transverse plate (4) via a rotating shaft, and a support member (10) is rotatably arranged on the free end of the support rod (9).

4. A platform for tensioning threaded steel bars on an inclined surface of concrete as claimed in claim 3, characterized in that: Each support rod (9) is a telescopic rod.

5. A platform for tensioning threaded steel bars on an inclined surface of concrete as claimed in claim 4, characterized in that: It also includes an adjusting rod (11), and each support rod (9) is provided with a thread groove (12) at one end away from the horizontal plate (4). One end of the adjusting rod (11) is threadedly connected to the support rod (9) through the thread groove (12), and the other end of the adjusting rod (11) is rotatably connected to the support member (10).

6. A platform for tensioning threaded steel bars on an inclined surface of concrete as claimed in claim 5, characterized in that: It also comprises a mounting tube (13) and a spring (14); the mounting tube (13) is slidably sleeved on one end of the adjusting rod (11) away from the supporting rod (9); one end of the spring (14) is fixedly connected to the adjusting rod (11); and the other end of the adjusting rod (11) is fixedly connected to the mounting tube (13).

7. A platform for tensioning threaded steel bars on an inclined surface of concrete as claimed in claim 3, characterized in that: The supporting member (10) is a wedge-shaped block.

8. A platform for tensioning threaded steel bars on an inclined surface of concrete as claimed in claim 7, characterized in that: A clamping groove (15) is provided on the side wall of the support plate (3) facing the support rod (9).

9. A platform for tensioning threaded steel bars on an inclined surface of concrete as claimed in claim 1, characterized in that: It also comprises a rib plate (16), one side of the rib plate (16) is fixedly connected to the base (1), and the other side of the rib plate (16) is fixedly connected to the support plate (3).

10. A platform for tensioning threaded steel bars on an inclined surface of concrete as claimed in claim 1, characterized in that: A plurality of fences (17) are fixedly provided on the top of the transverse plate (4).

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