Bridge jacking limiting equipment

Abstract

The utility model discloses a bridge jacking limiting device, and relates to the technical field of bridge jacking. A plurality of sets of supporting plates are arranged on the two sides of a beam body respectively, lifting grooves are longitudinally formed in the supporting plates, lifting bases are slidably connected into the lifting grooves, connecting rods are fixedly connected to the two ends of the lifting bases respectively, supporting plates are fixedly connected to the side ends of the connecting rods, jacks are arranged at the bottoms of the supporting plates, and guide rods are arranged between the jacks and the supporting plates. The upper end and the lower end of the guide rod are fixedly connected with the supporting plate and the jack correspondingly. The limiting assembly is fixedly connected to the supporting plate. When the beam body moves upwards, the limiting and supporting effect provided by the supporting plate is transmitted to the beam body through the limiting assembly, the phenomenon that the beam body horizontally and transversely shifts is avoided, and therefore the safety of jacking construction of the beam body is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the field of bridge lifting, and in particular relates to a bridge lifting limiting device. Background Art

[0002] With the development of society, some old bridges need to be improved for traffic due to the requirements of under-bridge passage or navigation, and the original bridges need to be lifted to increase the clearance under the bridge.

[0003] In the prior art, most of the jacking methods are to lift the bridge by jacks. A plurality of jacks are arranged to be held low at the bottom of the bridge. The jacks are operated simultaneously to move the bridge upward, thereby achieving the effect of increasing the clearance under the bridge.

[0004] However, during the bridge jacking process, there is a phenomenon of horizontal lateral displacement of the bridge, which requires the bridge to be reset. In addition, the bridge displacement poses a risk of the bridge falling off the jack, thus affecting the normal jacking construction of the bridge. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a bridge lifting limit device, which solves the problem that during the bridge lifting process, there is a horizontal lateral displacement of the bridge, which causes the bridge to be reset, and the bridge displacement has the risk of the bridge falling off the jack, thereby affecting the normal lifting construction of the bridge.

[0006] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the utility model, a bridge lifting and limiting device is provided, comprising:

[0007] A beam body, wherein a plurality of support plates are respectively arranged on both sides of the beam body, wherein the support plates are longitudinally provided with lifting grooves, wherein a lifting seat is slidably connected in the lifting grooves, and connecting rods are respectively fixedly connected at both ends of the lifting seat;

[0008] A support plate, the support plate is fixedly connected to the side end of the connecting rod, a jack is provided at the bottom of the support plate, a guide rod is provided between the jack and the support plate, and the upper and lower ends of the guide rod are fixedly connected to the support plate and the jack respectively; and

[0009] A limit assembly is fixedly connected to the support plate.

[0010] As a further solution of the utility model: an angle plate is provided between the lifting seat and the support plate, the angle plate is in an "L" shape, and two ends of the angle plate are respectively fixedly connected to the lifting seat and the support plate.

[0011] As a further solution of the utility model: the limit assembly includes: a servo motor, a rotating shaft, a limit plate and a supporting assembly, the limit plate is fixedly connected to the support plate, the limit plate is fixedly connected to the servo motor at the side end close to the lifting seat, the servo motor side end is fixedly connected to the rotating shaft, and the supporting assembly is respectively connected to the rotating shaft and the limit plate.

[0012] As a further solution of the utility model: the supporting assembly includes: an adjusting plate, a pressure plate and a threaded rod, a limiting groove is provided inside the limiting plate along the length direction, the bottom end of the adjusting plate is clamped in the limiting groove and is slidably connected to the limiting groove, a threaded hole is provided at the bottom of the adjusting plate along the axis of the rotating shaft, a supporting groove is provided at the side end of the adjusting plate along the height direction, the threaded hole is threadedly connected to the rotating shaft, the bottom end of the threaded rod is fixedly connected to the supporting groove, and the side end of the pressure plate is fixedly connected with a supporting seat, the supporting seat is clamped in the supporting groove and is slidably connected to the supporting groove.

[0013] As a further solution of the utility model: both ends of the adjustment plate are respectively fixedly connected with side plates, and the side plates are slidably connected with the limiting grooves.

[0014] As a further solution of the utility model: the pressure plate is sleeved on the threaded rod, a plurality of steel nails are fixedly connected to the bottom end of the pressure plate, a fixing rod is threadedly connected to the threaded rod, and the bottom end of the fixing rod is butt-connected to the butt seat.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. When the beam is lifted, the lifting seat slides along the lifting groove opened on the support plate, the lifting groove and the lifting seat are limit connected, and the limit support function provided by the support plate is transmitted to the connecting rod through the lifting seat, wherein the support plate can be arranged according to the specific lifting operation of the beam, the bottom end of the support plate is fixed on the ground, the jack lifting guide rod moves upward, and the guide rod supports the support plate to move upward. The specific working principle of the jack belongs to the prior art and will not be repeated here. The support plate drives the lifting seat to slide in the lifting groove through the connecting rod, wherein the connecting rod has the function of a connecting structure, and the connecting rod transmits the limit support function provided by the support plate to the support plate, and the support plate has a supporting function.

[0017] 2. When the beam moves upward, the limiting support provided by the support plate is transmitted to the beam through the limiting assembly, avoiding horizontal lateral deviation of the beam, thereby ensuring the safety of the beam jacking construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a diagram showing the overall structure of the utility model;

[0020] Figure 3 It is the AA cross-sectional view of the overall structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the supporting component of the utility model.

[0023] Illustration: 1. Beam; 2. Support plate; 3. Lifting slot; 4. Lifting seat; 5. Connecting rod; 6. Support plate; 7. Guide rod; 8. Jack; 9. Angle plate; 10. Servo motor; 11. Rotating shaft; 12. Adjusting plate; 13. Limiting plate; 14. Limiting slot; 15. Supporting slot; 16. Fixing rod; 17. Supporting seat; 18. Pressing plate; 19. Steel nail; 20. Threaded rod; 21. Threaded hole; 22. Side plate. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 5 As shown, a bridge lifting and limiting device comprises: a beam body 1, a support plate 6 and a limiting component.

[0026] A plurality of support plates 2 are respectively arranged on both sides of the beam body 1. The support plates 2 are longitudinally provided with lifting grooves 3. Lifting seats 4 are slidably connected in the lifting grooves 3. Connecting rods 5 are respectively fixedly connected at both ends of the lifting seats 4. When the beam body 1 is lifted, the lifting seats 4 slide along the lifting grooves 3 provided on the support plates 2. The lifting grooves 3 and the lifting seats 4 are limitedly connected. The limited support provided by the support plates 2 is transmitted to the connecting rods 5 through the lifting seats 4. The support plates 2 can be arranged according to the specific lifting operation of the beam body 1, and the bottom ends of the support plates 2 are fixed on the ground.

[0027] The support plate 6 is fixedly connected to the side end of the connecting rod 5, a jack 8 is provided at the bottom of the support plate 6, a guide rod 7 is provided between the jack 8 and the support plate 6, and the upper and lower ends of the guide rod 7 are fixedly connected to the support plate 6 and the jack 8 respectively. The jack 8 lifts the guide rod 7 to move upward, and the guide rod 7 supports the support plate 6 to move upward. The specific working principle of the jack 8 belongs to the prior art and will not be repeated here. The support plate 6 drives the lifting seat 4 to slide in the lifting slot 3 through the connecting rod 5, wherein the connecting rod 5 has the function of a connecting structure, and the connecting rod 5 transmits the limiting support function provided by the support plate 2 to the support plate 6, and the support plate 6 has a supporting function; and

[0028] The limiting assembly is fixedly connected to the support plate 6, and the support plate 6 transfers the limiting support function provided by the support plate 2 to the limiting assembly. The limiting assembly fixes the beam body 1. Compared with the prior art, when the beam body 1 moves upward, the limiting support function provided by the support plate 2 is transferred to the beam body 1 through the limiting assembly, avoiding the horizontal lateral deviation of the beam body 1, thereby ensuring the safety of the jacking construction of the beam body 1.

[0029] In some specific implementation schemes, an angle plate 9 is provided between the lifting seat 4 and the support plate 2. The angle plate 9 is in an "L" shape, and the two ends of the angle plate 9 are fixedly connected to the lifting seat 4 and the support plate 2 respectively. In order to avoid the jack 8 alone supporting the beam body 1, when the beam body 1 is lifted to the designed construction position, the lifting seat 4 is fixed to the support plate 2 using the angle plate 9. The fixing effect of the angle plate 9 on the lifting seat 4 is transmitted to the limit assembly through the connecting rod 5 and the support plate 6, and then transmitted to the beam body 1, further strengthening the supporting effect of the support plate 2 on the beam body 1.

[0030] In some specific implementation schemes, the limiting assembly includes: a servo motor 10, a rotating shaft 11, a limiting plate 13 and a holding assembly. The limiting plate 13 is fixedly connected to the support plate 6. The limiting plate 13 is fixedly connected to the servo motor 10 at the side end close to the lifting seat 4. The side end of the servo motor 10 is fixedly connected to the rotating shaft 11. The holding assembly is respectively connected with the rotating shaft 11 and the limiting plate 13. In order for those skilled in the art to better understand the working principle of the limiting assembly of the utility model, before the beam body 1 is lifted, the bottom end of the limiting plate 13 and the beam body are fixedly connected. 1 is resisted, the servo motor 10 is started, the servo motor 10 drives the rotating shaft 11 to rotate, the rotating shaft 11 drives the resisting assembly to move, the resisting assembly resists and fixes the beam body 1, when the resisting assembly resists on the beam body 1, the servo motor 10 is stopped, the servo motor 10 plays a role in driving the resisting assembly, and at the same time, the servo motor 10 realizes the function of adjusting the resisting assembly on the limiting plate 13, so that the limiting assembly limits the beam bodies 1 of different widths, and improves the applicability of the limiting assembly.

[0031] In some specific embodiments, the abutment assembly includes: an adjustment plate 12, a pressure plate 18 and a threaded rod 20. A limiting groove 14 is provided inside the limiting plate 13 along the length direction. The bottom end of the adjusting plate 12 is clamped in the limiting groove 14 and is slidably connected to the limiting groove 14. A threaded hole 21 is provided at the bottom of the adjusting plate 12 along the axis of the rotating shaft 11. A supporting groove 15 is provided at the side end of the adjusting plate 12 along the height direction. The threaded hole 21 is threadedly connected to the rotating shaft 11. The bottom end of the threaded rod 20 is fixedly connected to the supporting groove 15. A supporting seat 17 is fixedly connected to the side end of the pressure plate 18. The supporting seat 17 is clamped in the supporting groove 15 and is slidably connected to the supporting groove 15. In order for those skilled in the art to better understand the abutment of the utility model The working principle of the component is that when the shaft 11 rotates, the shaft 11 is threadedly connected through the threaded hole 21 opened on the adjusting plate 12 to drive the adjusting plate 12 to move, and the adjusting plate 12 slides in the limiting groove 14 opened on the limiting plate 13. When the adjusting plate 12 and the side end of the beam body 1 are abutted, the servo motor 10 is stopped, and the threaded connection between the shaft 11 and the threaded hole 21 fixes the adjusting plate 12. The abutting seat 17 fixedly connected to the pressure plate 18 is installed on the abutting groove 15 opened on the adjusting plate 12. The pressure plate 18 limits the top end of the beam body 1 to avoid the vertical displacement of the beam body 1 on the abutting component, thereby ensuring the stability of the beam body 1 on the abutting component as a whole.

[0032] In some specific embodiments, the two ends of the adjustment plate 12 are respectively fixedly connected with side plates 22, and the side plates 22 are slidably connected to the limiting grooves 14. In order to ensure the stability of the adjustment plate 12 sliding in the limiting grooves 14, the side plates 22 fixed at the two ends of the adjustment plate 12 are limitedly connected to the limiting grooves 14, thereby avoiding the phenomenon that the adjustment plate 12 rotates when the rotating shaft 11 rotates, and at the same time, ensuring the sliding stability of the adjustment plate 12 on the limiting plate 13.

[0033] In some specific embodiments, the pressing plate 18 is sleeved on the threaded rod 20, and a plurality of steel nails 19 are fixedly connected to the bottom end of the pressing plate 18. The threaded rod 20 is threadedly connected with a fixing rod 16, and the bottom end of the fixing rod 16 is abutted and connected with a supporting seat 17. In order to further strengthen the limiting effect of the pressing plate 18 on the beam body 1, the steel nails 19 fixedly connected to the bottom end of the pressing plate 18 are inserted into the beam body 1. The steel nails 19 belong to the elements of the prior art. The steel nails 19 further strengthen the friction between the pressing plate 18 and the beam body 1. The fixing rod 16 fixes the pressing plate 18 on the adjusting plate 12 through a threaded connection with the threaded rod 20. The abutting groove 15 opened on the adjusting plate 12 provides a limiting support effect on the pressing plate 18 through a limiting connection with the abutting seat 17.

[0034] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A bridge lifting and limiting device, characterized in that: include: A beam body (1), wherein a plurality of support plates (2) are respectively provided on both sides of the beam body (1), wherein the support plates (2) are longitudinally provided with lifting grooves (3), wherein a lifting seat (4) is slidably connected in the lifting grooves (3), and connecting rods (5) are respectively fixedly connected at both ends of the lifting seat (4); A support plate (6), the support plate (6) is fixedly connected to the side end of the connecting rod (5), a jack (8) is provided at the bottom of the support plate (6), a guide rod (7) is provided between the jack (8) and the support plate (6), and the upper and lower ends of the guide rod (7) are fixedly connected to the support plate (6) and the jack (8) respectively; and A limiting assembly, wherein the limiting assembly is fixedly connected to the support plate (6).

2. A bridge lifting and limiting device according to claim 1, characterized in that: An angle plate (9) is provided between the lifting seat (4) and the support plate (2); the angle plate (9) is in an "L" shape, and two ends of the angle plate (9) are respectively fixedly connected to the lifting seat (4) and the support plate (2).

3. A bridge lifting and limiting device according to claim 1, characterized in that: The limiting assembly comprises: a servo motor (10), a rotating shaft (11), a limiting plate (13) and a resisting assembly, wherein the limiting plate (13) is fixedly connected to the supporting plate (6), the limiting plate (13) is fixedly connected to the servo motor (10) at the side end close to the lifting seat (4), the side end of the servo motor (10) is fixedly connected to the rotating shaft (11), and the resisting assembly is respectively connected to the rotating shaft (11) and the limiting plate (13).

4. A bridge lifting and limiting device according to claim 3, characterized in that: The abutting assembly comprises: an adjusting plate (12), a pressing plate (18) and a threaded rod (20); a limiting groove (14) is provided inside the limiting plate (13) along the length direction; the bottom end of the adjusting plate (12) is clamped in the limiting groove (14) and is slidably connected to the limiting groove (14); a threaded hole (21) is provided at the bottom of the adjusting plate (12) along the axis of the rotating shaft (11); a supporting groove (15) is provided at the side end of the adjusting plate (12) along the height direction; the threaded hole (21) is threadedly connected to the rotating shaft (11); the bottom end of the threaded rod (20) is fixedly connected to the supporting groove (15); the side end of the pressing plate (18) is fixedly connected to a supporting seat (17); the supporting seat (17) is clamped in the supporting groove (15) and is slidably connected to the supporting groove (15).

5. A bridge lifting and limiting device according to claim 4, characterized in that: The two ends of the adjustment plate (12) are respectively fixedly connected with side plates (22), and the side plates (22) are slidably connected to the limiting grooves (14).

6. A bridge lifting and limiting device according to claim 4, characterized in that: The pressing plate (18) is sleeved on the threaded rod (20), and a plurality of steel nails (19) are fixedly connected to the bottom end of the pressing plate (18). A fixing rod (16) is threadedly connected to the threaded rod (20), and the bottom end of the fixing rod (16) is abuttingly connected to the abutting seat (17).

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