Adjustable arch bridge arch rib positioning device

Abstract

The utility model belongs to the technical field of arch bridge arch ribs, and particularly relates to an adjustable arch bridge arch rib positioning device. According to the technical scheme, the adjustable arch bridge arch rib positioning device comprises a base, a sliding plate and an arch rib saddle, a spiral lead screw is rotationally connected to the base, a fixing nut is connected to the bottom of the sliding plate, the spiral lead screw is in threaded connection with the fixing nut, a vertically-arranged adjusting bolt is fixed to the sliding plate, and an adjusting nut is in threaded connection with the adjusting bolt; and the arch rib saddle is lapped on the adjusting nut. The adjustable arch bridge arch rib positioning device is simple in structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of arch bridge ribs, and particularly relates to an adjustable arch bridge rib positioning device. Background Art

[0002] During the construction of tied arch bridges, controlling the installation accuracy of the arch ribs has always been a difficult problem. The deviation in the installation accuracy of the arch ribs not only affects the linear appearance of the arch rib structure, but also affects the accuracy of the subsequent hanger installation, thereby causing unpredictable effects on the structural stress of the entire bridge.

[0003] In the prior art, the patent publication number CN203530849U discloses a fixed tray, a limited fixed tray for installing the arch rib of a steel tube arch bridge, and a limited fixed tray for installing the arch rib of a steel tube arch bridge, including a limited slot steel plate with a circular arc notch of the same diameter as the steel tube arch rib cut on one side of a long steel plate, and the other side of the limited slot steel plate is welded and fixed to the midline position of a bottom support steel plate at 90°; a triangular stiffening plate is welded at the four-equal points on both sides of the limited slot steel plate, and the two right-angled sides of the triangular stiffening plate are respectively welded and fixed to the limited slot steel plate and the bottom support steel plate vertically. It is realized that the steel tube arch rib can be quickly limited during the hoisting process of the steel tube arch rib, and at the same time, it is ensured that the hoisted arch rib does not deviate subsequently, so as to ensure that the linear requirements are met, and it has the characteristics of fast construction, simple structure, convenient use, reusable, time-saving, labor-saving and cost-saving.

[0004] The above device can only fix the installation position of the arch rib, and other methods are still needed to determine the position of the arch rib. Utility Model Content

[0005] In order to solve the above problems existing in the prior art, the purpose of the utility model is to provide an adjustable arch bridge arch rib positioning device with a simple structure.

[0006] The technical solution adopted by the utility model is:

[0007] An adjustable arch bridge arch rib positioning device comprises a base, a slide plate and an arch rib saddle, wherein a spiral screw is rotatably connected to the base, a fixing nut is connected to the bottom of the slide plate, the spiral screw is threadedly connected to the fixing nut, a vertically arranged adjusting bolt is fixed to the slide plate, an adjusting nut is threadedly connected to the adjusting bolt, and the arch rib saddle is overlapped on the adjusting nut.

[0008] The screw rod of the utility model is threadedly connected with the fixing nut at the bottom of the slide plate. When the screw rod is screwed, the slide plate can move relative to the base, thereby adjusting the horizontal position of the arch rib saddle on the slide plate. The arch rib saddle is overlapped on the adjusting nut, so that the height of the arch rib saddle can be adjusted by screwing the adjusting nut. By adjusting the horizontal and vertical positions of the arch rib saddle, the position of the arch rib saddle can be ensured to be accurate, thereby ensuring the accuracy of the subsequent suspension rod installation, and further ensuring the structural force of the entire bridge.

[0009] As a preferred solution of the utility model, a screw nut is fixed on the screw rod. Both ends of the screw rod extend out of the frame of the base, and the screw nut is fixed at the position where the screw rod extends out of the frame of the base. The screw rod can be easily rotated by operating the screw nut with a wrench.

[0010] As a preferred solution of the utility model, a bearing is connected between the screw rod and the base. The screw rod is connected to the frame of the base through the bearing to ensure that the screw rod can rotate reliably.

[0011] As a preferred solution of the utility model, a fixing groove is provided at the bottom of the slide plate, and the fixing nut is fixed in the fixing groove of the slide plate. The fixing groove can conveniently fix the fixing nut.

[0012] As a preferred solution of the utility model, the bottom of the slide is provided with an arc groove, the base is provided with an arc guide rail, and the arc groove of the slide is sleeved on the arc guide rail. When the spiral screw is screwed, the slide moves horizontally relative to the base, and the arc groove at the bottom of the slide is on the arc guide rail on the base, ensuring the smooth movement of the slide.

[0013] As a preferred solution of the utility model, the number of the arc groove and the arc guide rail are both two, and the two arc guide rails are arranged on both sides of the spiral screw rod. The two arc guide rails guide the two sides of the slide plate respectively to ensure that the slide plate moves more smoothly.

[0014] As a preferred solution of the utility model, a locking nut for locking the arched saddle is threadedly connected to the adjusting bolt. When the vertical position of the arch rib saddle is adjusted, the arch rib saddle can be locked by the locking nut.

[0015] As a preferred solution of the utility model, the arched saddle includes a horizontal bottom plate, an arched plate is arranged on the horizontal bottom plate, a reserved hole is arranged on the horizontal bottom plate, the reserved hole of the horizontal bottom plate is sleeved on the adjusting bolt, and the locking nut is located on the upper side of the horizontal bottom plate. When installing the arch rib saddle, the adjusting nut on the adjusting bolt is first screwed to a certain height, and then the arch rib saddle is placed on a plurality of adjusting nuts, the adjusting bolt passes through the reserved hole on the horizontal bottom plate, and finally the locking nut is screwed on the adjusting bolt, and the locking nut locks the horizontal bottom plate of the arch rib saddle.

[0016] As a preferred solution of the utility model, a plurality of ribs are connected between the horizontal bottom plate and the arched plate, and the ribs can ensure the stability of the arched plate.

[0017] As a preferred solution of the utility model, there are four adjusting bolts, which are arranged at four corners of the horizontal bottom plate. There are four sets of adjusting bolts, adjusting nuts and locking nuts, which respectively adjust and fix the height of the four corners of the horizontal bottom plate.

[0018] The beneficial effects of the utility model are:

[0019] The screw rod of the utility model is threadedly connected with the fixing nut at the bottom of the slide plate. When the screw rod is screwed, the slide plate can move relative to the base, thereby adjusting the horizontal position of the arch rib saddle on the slide plate. The arch rib saddle is overlapped on the adjusting nut, so that the height of the arch rib saddle can be adjusted by screwing the adjusting nut. By adjusting the horizontal and vertical positions of the arch rib saddle, the position of the arch rib saddle can be ensured to be accurate, thereby ensuring the accuracy of the subsequent suspension rod installation, and further ensuring the structural force of the entire bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a partial structural diagram of the utility model.

[0022] In the figure: 1-base; 2-slide plate; 3-arch rib saddle; 4-screw rod; 5-fixing nut; 6-adjusting bolt; 7-adjusting nut; 8-screw nut; 9-bearing; 10-arc guide rail; 11-locking nut; 12-horizontal bottom plate; 13-arch plate; 14-rib plate. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0025] like Figure 1 and Figure 2 As shown, the adjustable arch bridge rib positioning device of this embodiment includes a base 1, a slide plate 2 and an arch rib saddle 3. A spiral screw 4 is rotatably connected to the base 1, a fixing nut 5 is connected to the bottom of the slide plate 2, the spiral screw 4 is threadedly connected to the fixing nut 5, a vertically arranged adjusting bolt 6 is fixed on the slide plate 2, an adjusting nut 7 is threadedly connected to the adjusting bolt 6, and the arch rib saddle 3 is overlapped on the adjusting nut 7.

[0026] The screw rod 4 of the utility model is threadedly connected with the fixing nut 5 at the bottom of the slide plate 2. When the screw rod 4 is screwed, the slide plate 2 can move relative to the base 1, thereby adjusting the horizontal position of the arch rib saddle 3 on the slide plate 2. The arch rib saddle 3 is overlapped on the adjustment nut 7, so that the height of the arch rib saddle 3 can be adjusted by screwing the adjustment nut 7. By adjusting the horizontal and vertical positions of the arch rib saddle 3, the position of the arch rib saddle 3 can be ensured to be accurate, thereby ensuring the accuracy of the subsequent suspension rod installation, and then ensuring the structural force of the entire bridge.

[0027] Furthermore, a screw nut 8 is fixed on the screw rod 4. Both ends of the screw rod 4 extend out of the frame of the base 1, and the screw nut 8 is fixed at the position where the screw rod 4 extends out of the frame of the base 1. The screw nut 8 can be easily rotated by operating the screw nut 8 with a wrench.

[0028] A bearing 9 is connected between the screw rod 4 and the base 1. The screw rod 4 is connected to the frame of the base 1 through the bearing 9 to ensure that the screw rod 4 can rotate reliably.

[0029] The bottom of the slide plate 2 is provided with a fixing groove, and the fixing nut 5 is fixed in the fixing groove of the slide plate 2. The fixing groove can facilitate the fixing of the fixing nut 5.

[0030] In order to facilitate the guidance, the bottom of the slide plate 2 is provided with an arc groove, and the base 1 is provided with an arc guide rail 10, and the arc groove of the slide plate 2 is sleeved on the arc guide rail 10. When the screw rod 4 is screwed, the slide plate 2 moves horizontally relative to the base 1, and the arc groove at the bottom of the slide plate 2 is on the arc guide rail 10 on the base 1, ensuring that the slide plate 2 moves smoothly.

[0031] The number of the arc groove and the arc guide rail 10 are both two, and the two arc guide rails 10 are respectively arranged on both sides of the screw rod 4. The two arc guide rails 10 guide the two sides of the slide plate 2 respectively to ensure that the slide plate 2 moves more smoothly.

[0032] In order to lock the arch rib saddle 3, a locking nut 11 for locking the arch saddle is threadedly connected on the adjusting bolt 6. After the vertical position of the arch rib saddle 3 is adjusted, the arch rib saddle 3 can be locked by the locking nut 11.

[0033] The arched saddle comprises a horizontal bottom plate 12, an arched plate 13 is arranged on the horizontal bottom plate 12, and a plurality of ribs 14 are connected between the horizontal bottom plate 12 and the arched plate 13. The ribs 14 can ensure the stability of the arched plate 13.

[0034] The horizontal bottom plate 12 is provided with a reserved hole, and the reserved hole of the horizontal bottom plate 12 is sleeved on the adjusting bolt 6, and the locking nut 11 is located on the upper side of the horizontal bottom plate 12. When installing the arch rib saddle 3, the adjusting nut 7 on the adjusting bolt 6 is first screwed to a certain height, and then the arch rib saddle 3 is placed on the adjusting nuts 7, and the adjusting bolt 6 passes through the reserved hole on the horizontal bottom plate 12. Finally, the locking nut 11 is screwed on the adjusting bolt 6, and the locking nut 11 locks the horizontal bottom plate 12 of the arch rib saddle 3.

[0035] There are four adjusting bolts 6, which are arranged at four corners of the horizontal bottom plate 12. There are four sets of adjusting bolts 6, adjusting nuts 7 and locking nuts 11, which are used to adjust and fix the height of the four corners of the horizontal bottom plate 12 respectively.

[0036] The present utility model is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present utility model fall within the protection scope of the present utility model.

Claims

1. An adjustable arch bridge rib positioning device, characterized in that: The invention comprises a base (1), a slide plate (2) and an arch rib saddle (3); a spiral screw rod (4) is rotatably connected to the base (1); a fixing nut (5) is connected to the bottom of the slide plate (2); the spiral screw rod (4) is threadedly connected to the fixing nut (5); a vertically arranged adjusting bolt (6) is fixed to the slide plate (2); an adjusting nut (7) is threadedly connected to the adjusting bolt (6); and the arch rib saddle (3) is overlapped on the adjusting nut (7).

2. The adjustable arch bridge rib positioning device according to claim 1, characterized in that: A screw nut (8) is fixed on the spiral screw rod (4).

3. The adjustable arch bridge rib positioning device according to claim 1, characterized in that: A bearing (9) is connected between the spiral screw rod (4) and the base (1).

4. The adjustable arch bridge rib positioning device according to claim 1, characterized in that: The bottom of the slide plate (2) is provided with a fixing groove, and the fixing nut (5) is fixed in the fixing groove of the slide plate (2).

5. The adjustable arch bridge rib positioning device according to claim 1, characterized in that: The bottom of the slide plate (2) is provided with an arc-shaped groove, the base (1) is provided with an arc-shaped guide rail (10), and the arc-shaped groove of the slide plate (2) is sleeved on the arc-shaped guide rail (10).

6. The adjustable arch bridge rib positioning device according to claim 5, characterized in that: The number of the arc-shaped groove and the number of the arc-shaped guide rails (10) are both two, and the two arc-shaped guide rails (10) are arranged on both sides of the spiral screw rod (4).

7. The adjustable arch bridge rib positioning device according to claim 1, characterized in that: The adjusting bolt (6) is threadedly connected with a locking nut (11) for locking the arched saddle.

8. The adjustable arch bridge rib positioning device according to claim 7, characterized in that: The arched saddle comprises a horizontal bottom plate (12), an arched plate (13) is arranged on the horizontal bottom plate (12), a reserved hole is arranged on the horizontal bottom plate (12), the reserved hole of the horizontal bottom plate (12) is sleeved on the adjusting bolt (6), and the locking nut (11) is located on the upper side of the horizontal bottom plate (12).

9. The adjustable arch bridge rib positioning device according to claim 8, characterized in that: A plurality of ribs (14) are connected between the horizontal bottom plate (12) and the arched plate (13).

10. The adjustable arch bridge rib positioning device according to claim 8, characterized in that: The number of the adjusting bolts (6) is four, and the four adjusting bolts (6) are respectively arranged at four corners of the horizontal bottom plate (12).

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