Arch rib connecting structure of span bridge type steel arch

Abstract

The utility model discloses a span bridge type steel arch rib connecting structure which comprises a first arch rib and a second arch rib, U-shaped plates are arranged on the outer side of the first arch rib and the outer side of the second arch rib respectively, a fixing block and an operation block are fixedly installed at the bottoms of the two U-shaped plates respectively, and a fixing groove and an installation groove are formed in the sides, close to each other, of the fixing block and the operation block respectively. Two U-shaped plates are arranged in the mounting groove, locking bolts are installed on the vertical parts of the two U-shaped plates in a threaded mode, metal blocks are fixedly installed on the inner walls of the two sides of the mounting groove, through holes are formed in the two metal blocks, metal rods are movably installed in the two through holes, and movable rods are fixedly installed at the ends, close to each other, of the two metal rods. The span bridge type steel arch rib connecting structure is simple in structure and convenient to use, two adjacent steel arch ribs can be conveniently and rapidly spliced and fixed through the span bridge type steel arch rib connecting structure, errors are small, and construction efficiency can be conveniently improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure arch bridge construction, in particular to a span-bridge type steel arch rib connection structure. Background Art

[0002] In the process of modern bridge construction, steel structure bridges are becoming more and more recognized. Steel arch bridges are also one of the most common steel structure bridges. In the construction of steel arch bridges, the main arch is made of multiple steel pipes, and the cross beam and main arch can be hoisted and welded on site separately, which can not only effectively solve the problem of one-time hoisting overweight, but also greatly facilitate on-site construction, and also play an important role in shortening the construction period.

[0003] During the assembly of multiple arch ribs, it is difficult to support and fix them at the same time because the work is done at high altitude and the steel pipes used in steel arch bridges are relatively heavy. In addition, during the assembly process, there are often gaps or deviations in the joints, which will affect the final molding effect and reduce construction efficiency.

[0004] Based on this, this scheme proposes a span-bridge type steel arch rib connection structure. Utility Model Content

[0005] The utility model aims to provide a bridge-type steel arch rib connection structure to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a bridge-type steel arch rib connection structure, comprising a first arch rib and a second arch rib,

[0007] The outer sides of the first arch rib and the second arch rib are both provided with U-shaped plates, the bottoms of the two U-shaped plates are respectively fixed with a fixing block and an operating block, a fixing groove and an installation groove are respectively opened on the sides of the fixing block and the operating block close to each other, and locking bolts are threadedly installed on the vertical parts of the two U-shaped plates;

[0008] Metal blocks are fixedly installed on the inner walls of both sides of the installation groove, through holes are opened on the two metal blocks, metal rods are movably installed in the two through holes, movable rods are fixedly installed on the ends of the two metal rods close to each other, balls are rotatably installed on the sides of the two movable rods close to each other, and clamping blocks are fixedly installed on the sides of the two movable rods away from each other;

[0009] A mounting block is fixedly mounted on the bottom inner wall of the mounting groove, and a round rod is rotatably mounted on the bottom inner wall. A movable hole is opened on the mounting block, and a connecting rod is movably mounted in the movable hole. A sliding rod is fixedly mounted on one end of the connecting rod, and a trapezoidal block is fixedly mounted on the other end of the connecting rod. A sliding sleeve is slidably sleeved on the sliding rod, and a triangular rack is fixedly mounted on the sliding sleeve.

[0010] A worm wheel and a gear are fixedly sleeved on the round rod, and the gear is meshed with the triangular rack;

[0011] A worm meshing with the worm wheel is rotatably mounted on one side of the operating block.

[0012] Preferably, both sides of the fixing groove are provided with card slots adapted to the card blocks.

[0013] By adopting the above technical solution, the two card blocks are squeezed into the corresponding card slots by moving the card blocks separately to the left and right, so that the fixed block and the operating block can be fixedly spliced, and the fixed assembly between the first arch rib and the second arch rib can be indirectly completed.

[0014] Preferably, one end of the worm is fixedly sleeved with a crank.

[0015] By adopting the technical solution, the worm can be easily rotated by the crank.

[0016] Preferably, an anti-falling block is fixedly mounted on one end of the sliding rod.

[0017] By adopting the above technical solution, the anti-falling block can prevent the sliding sleeve from falling off accidentally.

[0018] Preferably, a first spring is sleeved on the connecting rod, one end of the first spring is fixed on the connecting rod, and the other end of the first spring is fixed on the inner wall of the movable hole.

[0019] By adopting the above technical solution, the first spring facilitates the resetting of the connecting rod.

[0020] Preferably, the two metal rods are sleeved with a second spring, one end of the second spring is fixed to the corresponding metal rod, and the other end is fixed to the inner wall of the corresponding through hole.

[0021] By adopting the above technical solution, the second spring facilitates the resetting of the metal rod.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. By providing a first arch rib, a second arch rib, a U-shaped plate, a locking bolt, a fixing block, and an operating block, the first arch rib and the second arch rib are first inserted into the corresponding U-shaped plates respectively, and then the locking bolts on both sides of the U-shaped plate are locked, so that the first arch rib and the second arch rib can be fixed on the corresponding U-shaped plate.

[0024] 2. By providing a movable rod, a clamping block, a crank, a worm, a round rod, a gear, a triangular rack, a sliding rod, a sliding sleeve, a trapezoidal block, and a ball, the crank can be used to drive the rotation of the worm, so that the trapezoidal block can be driven to move outward in a linkage manner. During the movement of the trapezoidal block, the balls on both sides are squeezed respectively, so that the two movable rods can be driven to move left and right separately, and the two clamping blocks can be driven to move left and right separately, so that the two clamping blocks are squeezed and clamped into the corresponding clamping slots, so that the fixed block and the operating block can be fixedly spliced, and the fixed assembly between the first arch rib and the second arch rib can be indirectly completed, and the assembly effect is good and the error is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a top perspective view of the structure of the utility model;

[0026] Figure 2 It is a side perspective view of the structure of the utility model;

[0027] Figure 3 This is a three-dimensional diagram of the internal structure of the operating block of the utility model;

[0028] Figure 4 This is a schematic structural diagram of part A of the utility model.

[0029] In the figure: 1. first arch rib; 2. U-shaped plate; 3. movable rod; 4. locking bolt; 5. second arch rib; 6. crank; 7. operating block; 8. clamping block; 9. fixing block; 10. fixing groove; 11. clamping groove; 12. mounting block; 13. first spring; 14. metal rod; 15. metal block; 16. trapezoidal block; 17. ball bearing; 18. second spring; 19. connecting rod; 20. sliding sleeve; 21. sliding rod; 22. anti-falling block; 23. worm; 24. round rod; 25. worm wheel; 26. gear; 27. triangular rack. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0031] See also Figure 1-4The utility model provides a technical solution: a bridge-type steel arch rib connection structure, including a first arch rib 1 and a second arch rib 5, the outer sides of the first arch rib 1 and the second arch rib 5 are both provided with a U-shaped plate 2, the bottoms of the two U-shaped plates 2 are respectively fixedly installed with a fixing block 9 and an operating block 7, the sides of the fixing block 9 and the operating block 7 close to each other are respectively provided with a fixing groove 10 and an installation groove, and the vertical parts of the two U-shaped plates 2 are both threadedly installed with locking bolts 4. Through the above-mentioned structural setting, the first arch rib 1 and the second arch rib 5 are respectively inserted into the corresponding U-shaped plates 2, and then the first arch rib 1 and the second arch rib 5 can be fixed on the corresponding U-shaped plates 2 by locking the locking bolts 4 on both sides of the U-shaped plates 2.

[0032] Combination Figure 1-4 As shown, metal blocks 15 are fixedly installed on the inner walls of both sides of the installation groove, through holes are opened on the two metal blocks 15, metal rods 14 are movably installed in the two through holes, and movable rods 3 are fixedly installed on the ends of the two metal rods 14 close to each other, and second springs 18 are sleeved on the two metal rods 14, one end of the second spring 18 is fixed on the corresponding metal rod 14, and the other end is fixed on the inner wall of the corresponding through hole, and the side where the two movable rods 3 are close to each other is rotatably installed with a ball 17, and the side where the two movable rods 3 are away from each other is fixed. A card block 8 is fixedly installed, a mounting block 12 is fixedly installed on the bottom inner wall of the mounting groove, and a round rod 24 is rotatably installed on the bottom inner wall, a movable hole is opened on the mounting block 12, a connecting rod 19 is movably installed in the movable hole, a sliding rod 21 is fixedly installed on one end of the connecting rod 19, and a trapezoidal block 16 is fixedly installed on the other end of the connecting rod 19, a first spring 13 is sleeved on the connecting rod 19, one end of the first spring 13 is fixed on the connecting rod 19, and the other end is fixed on the inner wall of the movable hole, a sliding sleeve 20 is slidably sleeved on the sliding rod 21, and the sliding sleeve 2 0 is fixedly mounted with a triangular rack 27, one end of the slide bar 21 is fixedly mounted with an anti-dropping block 22, a worm wheel 25 and a gear 26 are fixedly sleeved on the round rod 24, the gear 26 is meshed with the triangular rack 27, a worm 23 meshed with the worm wheel 25 is rotatably mounted on one side of the operating block 7, one end of the worm 23 is fixedly sleeved with a crank 6, through the above-mentioned structural arrangement, by inserting the two movable rods 3 on the operating block 7 into the fixed groove 10, and then rotating the crank 6 to drive the rotation of the worm 23, the worm 23 drives the rotation of the worm wheel 25, that is, The round rod 24 can be driven to rotate, which can drive the gear 26 to rotate, and the gear 26 can drive the movement of the triangular rack 27. Because the tooth block part of the triangular rack 27 is inclined, it drives the sliding sleeve 20 to slide horizontally on the sliding rod 21, while giving the connecting rod 19 a force to move outward, which can drive the trapezoidal block 16 to move outward. During the movement of the trapezoidal block 16, the balls 17 on both sides are squeezed respectively, which can drive the two movable rods 3 to move left and right separately, and can drive the two blocking blocks 8 to move left and right separately.

[0033] Combination Figure 1-3 As shown, both sides of the fixing groove 10 are provided with a card slot 11 adapted to the card block 8. Through the above-mentioned structural setting, when the two card blocks 8 are squeezed and inserted into the corresponding card slots 11 respectively, the fixing block 9 and the operating block 7 can be fixedly spliced, and the fixed assembly between the first arch rib 1 and the second arch rib 5 can be indirectly completed, and the assembly effect is good and the error is small.

[0034] Working principle of the utility model: when it is necessary to splice the first arch rib 1 and the second arch rib 5, firstly, the first arch rib 1 and the second arch rib 5 are respectively inserted into the corresponding U-shaped plate 2, and then the first arch rib 1 and the second arch rib 5 can be fixed on the corresponding U-shaped plate 2 by locking the locking bolts 4 on both sides of the U-shaped plate 2, and then the two movable rods 3 on the operating block 7 are inserted into the fixing groove 10, and then the worm 23 is driven to rotate by turning the crank 6, and the worm 23 drives the rotation of the worm wheel 25, which can drive the rotation of the round rod 24, which can drive the rotation of the gear 26, and the gear 26 drives the movement of the triangular rack 27, because The tooth block part of the triangular rack 27 is inclined, so while driving the sliding sleeve 20 to slide horizontally on the sliding rod 21, it gives the connecting rod 19 a force to move outward, which can drive the trapezoidal block 16 to move outward. During the movement of the trapezoidal block 16, the balls 17 on both sides are squeezed respectively, which can drive the two movable rods 3 to move left and right separately, and drive the two clamping blocks 8 to move left and right separately, so that the two clamping blocks 8 are squeezed and clamped into the corresponding clamping grooves 11, and the fixed block 9 and the operating block 7 can be fixedly spliced, and the fixed assembly between the first arch rib 1 and the second arch rib 5 can be indirectly completed, and the assembly effect is good and the error is small. The utility model has a simple structure and is easy to use. The bridge-type steel arch rib connection structure is convenient for quickly splicing and fixing two adjacent steel arch ribs, with a small error, which is convenient for increasing construction efficiency.

[0035] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the embodiments of the utility model have been shown and described, it is understandable to those of ordinary skill in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A bridge-type steel arch rib connection structure, comprising a first arch rib (1) and a second arch rib (5), characterized in that: The first arch rib (1) and the second arch rib (5) are both provided with U-shaped plates (2) on their outer sides, and a fixing block (9) and an operating block (7) are respectively fixedly installed on the bottom of the two U-shaped plates (2), and a fixing groove (10) and an installation groove are respectively provided on the sides where the fixing block (9) and the operating block (7) are close to each other, and locking bolts (4) are threadedly installed on the vertical parts of the two U-shaped plates (2); Metal blocks (15) are fixedly mounted on the inner walls of both sides of the mounting groove, through holes are formed on the two metal blocks (15), metal rods (14) are movably mounted in the two through holes, movable rods (3) are fixedly mounted on the ends of the two metal rods (14) close to each other, balls (17) are rotatably mounted on the sides of the two movable rods (3) close to each other, and clamping blocks (8) are fixedly mounted on the sides of the two movable rods (3) away from each other; A mounting block (12) is fixedly mounted on the bottom inner wall of the mounting groove, and a round rod (24) is rotatably mounted on the bottom inner wall. A movable hole is provided on the mounting block (12), and a connecting rod (19) is movably mounted in the movable hole. A sliding rod (21) is fixedly mounted on one end of the connecting rod (19), and a trapezoidal block (16) is fixedly mounted on the other end of the connecting rod (19). A sliding sleeve (20) is slidably sleeved on the sliding rod (21), and a triangular rack (27) is fixedly mounted on the sliding sleeve (20); A worm wheel (25) and a gear (26) are fixedly sleeved on the round rod (24), and the gear (26) is meshed with a triangular rack (27); A worm (23) meshing with a worm wheel (25) is rotatably mounted on one side of the operating block (7).

2. The cross-bridge type steel arch rib connection structure according to claim 1, characterized in that: Both sides of the fixing groove (10) are provided with clamping grooves (11) adapted to the clamping block (8).

3. The bridge-type steel arch rib connection structure according to claim 1, characterized in that: One end of the worm (23) is fixedly sleeved with a crank (6).

4. The bridge-type steel arch rib connection structure according to claim 1, characterized in that: An anti-falling block (22) is fixedly mounted on one end of the slide rod (21).

5. The bridge-type steel arch rib connection structure according to claim 1, characterized in that: The connecting rod (19) is sleeved with a first spring (13), one end of the first spring (13) is fixed on the connecting rod (19), and the other end is fixed on the inner wall of the movable hole.

6. The bridge-type steel arch rib connection structure according to claim 1, characterized in that: The two metal rods (14) are sleeved with a second spring (18), one end of the second spring (18) is fixed on the corresponding metal rod (14), and the other end is fixed on the inner wall of the corresponding through hole.

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