Suspension rod tensioning structure of tied-arch bridge
By designing a tie-fitting arch bridge boom tensioning structure including main body plate, eccentric wheel, pull rod, cable and resistance block, the problem of the boom being lengthened and extended after long-term use is solved, and automatic tensioning is achieved and improved Use effect and stability.
Patent Information
- Application Number
- CN202420878249.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The existing arch bridge boom will be elongated and extended after long-term use, and it requires regular tightening and maintenance, and cannot achieve automatic tensioning, resulting in the boom being unable to maintain the optimal tensioning connection state, which is not effective in use.
A tensioning structure of the tie-fitting arch bridge suspension rod is designed, using the main body plate and the eccentric wheel, pulling rod, cable, mounting table, counterweight block, steering rod and resistance block. Through the cooperation of gravity and the spring, the Automatic tension of the boom ensures that the boom is in the optimal tightening connection.
The automatic tension of the boom is achieved, which avoids looseness after long-term use, improves the use effect, and ensures the stability and connection status of the boom.
Smart Images
Figure CN222206006U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tensioning structures, in particular to a tensioning structure for a tie-bar arch bridge hanger. Background Art
[0002] As a member of the arch bridge family, the tied arch bridge has the general characteristics of the arch bridge and its own unique characteristics. It is a type of bridge that combines the advantages of arch and beam. It combines the two basic structural forms of arch and beam to bear the load together, giving full play to the structural performance and combined effect of beam bending and arch compression. The horizontal thrust of the arch end is borne by the tie rod, so that the arch end support does not generate horizontal thrust. The side of the arch bridge crane provides tension through multiple hangers to support the bridge body.
[0003] However, the connection bottom ends of existing arch bridge hangers are mostly fixed and installed by bolts. Ordinary hangers are mostly fixed structures. The hangers will be elongated during long-term use and need to be tightened and maintained regularly. It is impossible to automatically tension the hangers to keep them in the best tensioned connection state, and the use effect is not good. Based on this, the utility model designs a tensioning structure of a tie-bar arch bridge hanger to solve the above problems. Utility Model Content
[0004] The purpose of the utility model is to provide a tie arch bridge hanger tensioning structure to solve the problem that the hanger mentioned above will be elongated during long-term use, requiring regular tightening and maintenance, and it is impossible to achieve automatic tensioning of the hanger to keep the hanger in the best tensioned connection state.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] The cam is connected with a first cam and a second cam which is connected with the first cam and the second cam is connected with the second cam at two ends of the cam, and the cam is connected with a spring which is fixed to the side of the cam body by the spring.
[0007] As a further solution of the utility model: a plurality of reinforcing plates are welded to the inner wall of the main body plate, and the plurality of reinforcing plates are arranged in parallel on the inner wall of the main body plate.
[0008] As a further solution of the utility model: outer support rods are welded on both sides of the main body plate, and the outer support rods are arranged obliquely.
[0009] As a further solution of the utility model: a pad is fitted and connected to the bottom of the main body plate, and the second nut contacts and connects to the pad.
[0010] As a further solution of the utility model: the steering rod is connected with a steering wheel, and a groove matching the cable is provided in the steering wheel.
[0011] As a further solution of the utility model: the length of the pulling rod is greater than the diameter of the eccentric wheel, and the eccentric wheel is a stainless steel wheel.
[0012] As a further solution of the utility model: inclined sliding grooves are provided at both ends of the main body plate, and one side of the abutment block is slidably installed in the sliding groove.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. In the utility model, the eccentric eccentric wheel is connected to the side of the arch bridge by rotating at both ends of the main body plate. The eccentric wheel contacts the side of the arch bridge. After the suspension rod is stretched due to long-term use, one side of the eccentric wheel is connected to the pulling rod, and the pulling rod is connected to the cable. One end of the cable is connected to multiple counterweights through the mounting platform. The counterweight pulls the upper pulling rod under the action of gravity, and the pulling rod drives the eccentric wheel to rotate eccentrically to pull the main body plate down. Inclined platforms are provided on both sides of the main body plate. The contact blocks contacting and connected on the inclined platforms are pushed by springs to allow the contact blocks to move laterally, and the inclined platforms and the tooth grooves on the contact blocks are used for clamping and limiting, so that the upper end surface of the contact block is in contact with the side of the suspension bridge for support, and the suspension rod is automatically tensioned.
[0015] 2. In the utility model, a pad is fitted at the bottom of the main body plate, and the pad fitted at the bottom of the main body plate is connected to the second nut to strengthen the support, and the connection is stable. A steering wheel is connected to the steering rod, and the steering wheel on the steering rod reduces the friction of the cable. The groove inside the steering wheel limits the cable, so that the cable connection is stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0017] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;
[0018] Figure 3 It is a schematic diagram of the overall explosion structure of the utility model;
[0019] Figure 4 It is a schematic diagram of the overall cross-sectional structure of the utility model.
[0020] In the figure: 1. main body plate; 2. reinforcing plate; 3. outer support rod; 4. suspension rod; 5. first nut; 6. second nut; 7. pad; 8. eccentric wheel; 9. pulling rod; 10. cable; 11. mounting platform; 12. counterweight block; 13. steering rod; 14. steering wheel; 15. inclined platform; 16. sliding groove; 17. resistance block; 18. spring. DETAILED DESCRIPTION
[0021] 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.
[0022] Example:
[0023] See also Figure 1-Figure 4In the embodiment of the utility model, a tie-bar arch bridge hanger tensioning structure includes a main body plate 1 and a hanger 4. The main body plate 1 is in a bow-like shape as a whole. The connecting end of the hanger 4 passes through the middle of the main body plate 1. The main body plate 1 is threaded with a first nut 5 and a second nut 6. The two ends of the main body plate 1 are movably connected with an eccentrically installed eccentric wheel 8. A pull rod 9 is welded to one end of the eccentric wheel 8. The free end of the pull rod 9 is connected to a cable 10. One end of the cable 10 is connected to a mounting platform 11. The mounting platform 11 is penetrated and installed with a plurality of counterweight blocks 1 2. Steering rods 13 are welded on both sides of the main body plate 1. The cable 10 runs through the steering rods 13. The cable 10 is steered by the steering rods 13 to prevent the long cable 10 from shaking. Inclined inclined platforms 15 are provided on both sides of the upper end of the main body plate 1. A resisting block 17 is installed on both sides of the main body plate 1. The bottom end of the resisting block 17 is an inclined end face and is fitted in the inclined platform 15. The contact surface of the inclined platform 15 and the resisting block 17 is provided with a matching meshing tooth groove. One end of the resisting block 17 is connected to a spring 18. The spring 1 8 and the other end are in contact with both sides of the main plate 1, the suspension rod 4 is connected to the main plate 1 through the second nut 6, the first nut 5 on the suspension rod 4 is in contact with the side of the arch bridge, and the two ends of the bow-shaped main plate 1 are rotatably connected to the eccentric eccentric wheel 8, and the eccentric wheel 8 is in contact with the side of the arch bridge. After the suspension rod 4 is stretched after long-term use, one side of the eccentric wheel 8 is connected to the pulling rod 9, and the pulling rod 9 is connected to the cable 10. One end of the cable 10 is connected to a plurality of counterweight blocks 12 through the mounting platform 11, and the counterweight block 12 pulls the upper end under the action of gravity. The pulling rod 9 drives the eccentric wheel 8 to rotate eccentrically, pulling the main plate 1 down, and inclined platforms 15 are provided on both sides of the main plate 1. The contact blocks 17 connected to the inclined platforms 15 are pushed by springs 18 to allow the contact blocks 17 to move laterally, and the inclined platforms 15 and the tooth grooves on the contact blocks 17 are used for clamping and limiting, so that the upper end surface of the contact block 17 is in contact with the side of the suspension bridge for support, and the suspension rod 4 is automatically tensioned, so that the suspension rod 4 is in the best tensioned connection state, avoiding the loosening of the suspension rod 4 after long-term use, and the use effect is good.
[0024] Preferably, Figure 4 As shown, a plurality of reinforcing plates 2 are welded to the inner wall of the main plate 1, and the plurality of reinforcing plates 2 are arranged in parallel on the inner wall of the main plate 1. The plurality of reinforcing plates 2 inside the main plate 1 provide reinforcing support, so that the supporting strength of the main plate 1 is higher.
[0025] Preferably, Figure 3 As shown, external support rods 3 are welded on both sides of the main body plate 1. The external support rods 3 are inclined. The external support rods 3 welded on both sides of the main body plate 1 are connected for side reinforcement support. The inclined external support rods 3 form a triangular support.
[0026] Preferably, Figure 1As shown, a pad 7 is attached to the bottom of the main body plate 1, and the second nut 6 contacts and connects the pad 7. The pad 7 attached to the bottom of the main body plate 1 and the second nut 6 strengthen the support connection, and the connection is stable.
[0027] Preferably, Figure 3 As shown, a steering wheel 14 is connected to the steering rod 13, and a groove matching the cable 10 is provided in the steering wheel 14. The steering wheel 14 on the steering rod 13 reduces the friction of the cable 10, and the groove inside the steering wheel 14 limits the cable 10, so that the cable 10 is stably connected.
[0028] Preferably, Figure 3 As shown, the length of the pull rod 9 is greater than the diameter of the eccentric wheel 8. The eccentric wheel 8 is a stainless steel wheel. The longer pull rod 9 provides a greater torque to drive the eccentric wheel 8. The eccentric wheel 8 made of stainless steel can avoid rust and increase rotational friction.
[0029] Preferably, Figure 3 As shown, inclined sliding grooves 16 are provided at both ends of the main plate 1, and one side of the resistance block 17 is slidably installed in the sliding groove 16. The resistance block 17 is matched and installed through the inclined sliding grooves 16 at both ends of the main plate 1, so that the sliding grooves 16 slide and limit the resistance block 17, and the resistance block 17 moves smoothly.
[0030] The working principle of the utility model is as follows: the suspension rod 4 is connected to the main body plate 1 through the second nut 6, the first nut 5 on the suspension rod 4 is connected to the side of the arch bridge through contact, the two ends of the bow-shaped main body plate 1 are rotatably connected to the eccentric eccentric wheel 8, the eccentric wheel 8 is in contact with the side of the arch bridge, after the suspension rod 4 is stretched after long-term use, one side of the eccentric wheel 8 is connected to the pulling rod 9, the pulling rod 9 is connected to the cable 10, one end of the cable 10 is connected to a plurality of counterweight blocks 12 through the mounting platform 11, and the counterweight block 12 pulls the upper end of the pulling rod under the action of gravity. Rod 9, pulling rod 9 drives eccentric wheel 8 to rotate eccentrically, pulls down main plate 1, and opens inclined platforms 15 on both sides of main plate 1, and the contact block 17 contacting and connected on inclined platform 15 is pushed by spring 18, so that the contact block 17 moves laterally, and the tooth grooves on inclined platform 15 and contact block 17 are clamped and limited, so that the upper end surface of contact block 17 contacts and supports the side of suspension bridge, and the suspension rod 4 is automatically tensioned, so that the suspension rod 4 is in the best tensioned connection state, and the looseness of suspension rod 4 after long-term use is avoided, and the use effect is good.
[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A tie-arch bridge hanger tensioning structure, comprising a main plate (1) and a hanger (4), characterized in that: The main body plate (1) is shaped like a bow as a whole. The connecting end of the suspension rod (4) passes through the middle of the main body plate (1). The main body plate (1) is threadedly connected with a first nut (5) and a second nut (6). An eccentrically mounted eccentric wheel (8) is movably connected at both ends of the main body plate (1). A pulling rod (9) is welded to one end of the eccentric wheel (8). A cable (10) is connected to the free end of the pulling rod (9). One end of the cable (10) is connected to a mounting platform (11). A plurality of counterweights (12) are installed on the mounting platform (11). The main body plate (1) Steering rods (13) are welded on both sides of the main plate (1), the cable (10) passes through the steering rod (13), inclined inclined platforms (15) are provided on both sides of the upper end of the main plate (1), and a resistance block (17) is installed on both sides of the main plate (1), the bottom end of the resistance block (17) is an inclined end surface and is fitted in the inclined platform (15), the contact surface of the inclined platform (15) and the resistance block (17) is provided with matching meshing tooth grooves, one end of the resistance block (17) is connected to a spring (18), and the other end of the spring (18) is in contact with both sides of the main plate (1).
2. The tie-arch bridge suspender rod tensioning structure according to claim 1, characterized in that: A plurality of reinforcing plates (2) are welded to the inner wall of the main body plate (1), and the plurality of reinforcing plates (2) are arranged in parallel on the inner wall of the main body plate (1).
3. The tie-arch bridge suspender rod tensioning structure according to claim 2, characterized in that: External support rods (3) are welded to both sides of the main body plate (1), and the external support rods (3) are arranged obliquely.
4. The tie-arch bridge hanger rod tensioning structure according to claim 1, characterized in that: A backing plate (7) is fitted and connected to the bottom of the main body plate (1), and the second nut (6) contacts and connects to the backing plate (7).
5. The tie-arch bridge hanger rod tensioning structure according to claim 1, characterized in that: The steering rod (13) is connected to a steering wheel (14), and a groove matching the cable (10) is provided in the steering wheel (14).
6. The tie-arch bridge hanger rod tensioning structure according to claim 1, characterized in that: The length of the pulling rod (9) is greater than the diameter of the eccentric wheel (8), and the eccentric wheel (8) is a stainless steel wheel.
7. The tie-arch bridge hanger rod tensioning structure according to claim 1, characterized in that: Inclined sliding grooves (16) are provided at both ends of the main body plate (1), and one side of the abutment block (17) is slidably mounted in the sliding groove (16).