Embedded cable saddle structure of extra-large span extradosed cable-stayed bridge

Abstract

The utility model discloses an ultra-large span extradosed cable-stayed bridge pre-embedded cable saddle structure which comprises a base installed on the top of a bridge tower and threaded rods pre-embedded in the four corners of the outer wall of the top of the base and further comprises an installation plate arranged on the top of the base, an installation frame is installed on the top of the installation plate, a cable saddle body is installed on the top of the installation frame, and the cable saddle body is connected with the threaded rods. A sliding groove is formed in the outer wall of the top of the mounting plate, a sliding rod is fixed to the inner wall of the sliding groove, and the two ends of the sliding rod are sleeved with a first traction assembly and a second traction assembly correspondingly. According to the pre-embedded cable saddle structure of the extra-large-span extradosed cable-stayed bridge, the cable can be placed in the cable saddle body, the two ends of the cable can be pulled and buffered through the arranged first pulling assembly and the arranged second pulling assembly respectively, and when the cable generates tension change due to sliding displacement, the cable can be pulled and buffered through the first pulling assembly and the second pulling assembly. And through the arrangement of the first traction assembly and the second traction assembly, the cable can be helped to absorb and disperse suddenly changed energy, and a better protection effect on the cable is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cable saddle, specifically to super large span low tower cable -stayed bridge pre -buried cable saddle structure. BACKGROUND

[0002] The cable saddle is mainly to make the cable change direction smoothly, and the main cable will slide or displace to a certain extent on the cable saddle. This is because the tension of the main cable will change under different load conditions (such as vehicle driving, wind load, temperature change, etc.). The current cable saddle does not have the function of pulling the cable. When the cable tension changes due to sliding displacement, it cannot help the cable to absorb and disperse the sudden change of energy, and cannot better protect the cable. SUMMARY

[0003] The utility model discloses a super large span low tower cable -stayed bridge pre -buried cable saddle structure to solve the problem in the above -mentioned background art.

[0004] In order to achieve the above object, the utility model provides the following technical scheme: super large span low tower cable -stayed bridge pre -buried cable saddle structure, include: install in the base of bridge tower top and pre -buried to the base top outer wall four corners screw rod still include: set up in the base top mounting plate, the mounting plate top installs the mounting frame, and the mounting frame top installs the cable saddle body, the mounting plate top outer wall opens the slide groove, and the slide groove inner wall is fixed with sliding rod, the both ends of sliding rod are respectively equipped with first pull assembly and second pull assembly, and the both ends of mounting frame top inner wall are all installed with limit component, the mounting plate top outer wall four corners all open through -going hole.

[0005] The first pull assembly includes a first sliding block, a first spring, a first pull rope connected to the top of the first sliding block, and a first fixed ring connected to one end of the first pull rope.

[0006] The second pull assembly includes a second sliding block, a second spring, a second pull rope connected to the top of the second sliding block, and a second fixed ring connected to one end of the second pull rope.

[0007] The limit component includes a fixed frame and a fixed pulley rotatably installed on the upper and lower ends of the inner wall of the fixed frame.

[0008] The base top outer wall is provided with a positioning groove, and the mounting plate bottom outer wall is fixed with a positioning block.

[0009] The screw rod is provided with a matching nut.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] The cable can be placed in the cable saddle body, the first pulling assembly and the second pulling assembly can respectively play a role of pulling and buffering on both ends of the cable, when the cable produces tension change due to sliding displacement, the first pulling assembly and the second pulling assembly can help the cable to absorb and disperse the suddenly changed energy, and the cable is better protected. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a sectional view structure of the utility model;

[0013] Figure 2 It is an external view structure of the utility model;

[0014] Figure 3 It is a base structure diagram of the utility model;

[0015] Figure 4 It is an installation plate structure diagram of the utility model;

[0016] Figure 5 It is a first pulling assembly and a second pulling assembly structure diagram of the utility model;

[0017] Figure 6 It is a limiting assembly structure diagram of the utility model.

[0018] In the drawing: 1, bridge tower; 2, base; 3, installation plate; 4, mounting frame; 5, cable saddle body; 6, sliding groove; 7, sliding rod; 8, first pulling assembly; 801, first sliding block; 802, first spring; 803, first pulling rope; 804, first fixed ring; 9, second pulling assembly; 901, second sliding block; 902, second spring; 903, second pulling rope; 904, second fixed ring; 10, limiting assembly; 1001, fixed frame; 1002, fixed pulley; 11, threaded rod; 12, positioning groove; 13, through hole; 14, positioning block; 15, cable. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Please refer to Figures 1-6The utility model provides a super -large span low tower cable -stayed bridge pre -buried cable saddle structure, include: the base 2 of installing in the bridge tower 1 top and pre -buried to the base 2 top outer wall four corners screw rod 11, still include: the mounting plate 3 of being located at the base 2 top, the mounting plate 3 top installs the mounting frame 4, and the mounting frame 4 top installs the cable saddle body 5, the outer wall of mounting plate 3 top is opened the sliding slot 6, and the sliding slot 6 inner wall is fixed with sliding rod 7, and the both ends of sliding rod 7 are respectively equipped with first pull assembly 8 and second pull assembly 9, and the both ends of mounting frame 4 top inner wall are all installed with limit component 10, and the outer wall of mounting plate 3 top is opened the through -hole 13 all in four corners.

[0021] Need to explain here: can place mounting plate 3 on the base 2, and make screw rod 11 pass through through -hole 13, and screw on the nut on screw rod 11, fix mounting plate 3 on the base 2, complete the installation of cable saddle body 5, cable 15 can be placed in cable saddle body 5, through the first pull assembly 8 and second pull assembly 9 set up can respectively to the both ends of cable play the effect of pulling buffer, when the tension of cable 15 changes due to sliding displacement, through the first pull assembly 8 and second pull assembly 9 set up can help cable 15 absorb and disperse the energy of sudden change, play the better protection effect to cable 15.

[0022] In a preferred embodiment, the first pull assembly 8 includes a first sliding block 801, a first spring 802, a first pull rope 803 connected to the top of the first sliding block 801, and a first fixed ring 804 connected to one end of the first pull rope 803.

[0023] Need to explain here: the first fixed ring 804 can be fixed to one end of the cable 15. When the cable 15 slides towards one end, the first sliding block 801 can be pulled to produce displacement through the first pull rope 803, and the first spring 802 can be squeezed, thereby playing the effect of pulling buffer and helping the cable 15 absorb and disperse the energy of sudden change.

[0024] In a preferred embodiment, the second pull assembly 9 includes a second sliding block 901, a second spring 902, a second pull rope 903 connected to the top of the second sliding block 901, and a second fixed ring 904 connected to one end of the second pull rope 903.

[0025] Need to explain here: the second fixed ring 904 can be fixed to the other end of the cable 15. When the cable 15 slides towards the other end, the second sliding block 901 can be pulled to produce displacement through the second pull rope 903, and the second spring 902 can be squeezed, thereby playing the effect of pulling buffer and helping the cable 15 absorb and disperse the energy of sudden change.

[0026] In a preferred embodiment, the limit component 10 includes a fixed frame 1001 and a fixed pulley 1002 rotatably installed on the inner wall of the fixed frame 1001 at the top and bottom.

[0027] It should be noted that the first pulling rope 803 and the second pulling rope 903 can be respectively arranged in the two sets of fixed pulleys 1002, so that the first pulling rope 803 and the second pulling rope 903 are prevented from being scratched and rubbed with the mounting plate 3 or the mounting frame 4 when receiving pulling, and damage to the first pulling rope 803 and the second pulling rope 903 is avoided.

[0028] In a preferred embodiment, the top outer wall of the base 2 is provided with a positioning groove 12, and the bottom outer wall of the mounting plate 3 is fixed with a positioning block 14.

[0029] It should be noted that when the mounting plate 3 is placed on the base 2, the positioning block 14 can be inserted into the positioning groove 12, so that the mounting plate 3 is more stable.

[0030] Working principle: the mounting plate 3 can be placed on the base 2, and the threaded rod 11 passes through the through hole 13, at the same time, the positioning block 14 can be inserted into the positioning groove 12, and the nut is screwed on the threaded rod 11, so that the mounting plate 3 is fixed on the base 2, the installation of the saddle body 5 is completed, the cable 15 can be placed in the saddle body 5, the first fixed ring 804 can be fixed at one end of the cable 15, when the cable 15 slides towards one end, the first pulling rope 803 can be pulled to generate displacement of the first sliding block 801, and the first spring 802 is extruded, so as to play a pulling buffering role, the second fixed ring 904 can be fixed at the other end of the cable 15, when the cable 15 slides towards the other end, the second pulling rope 903 can be pulled to generate displacement of the second sliding block 901, and the second spring 902 is extruded, so as to play a pulling buffering role, when the cable 15 generates tension change due to sliding displacement, it can help the cable 15 to absorb and disperse the sudden change of energy, and better protect the cable 15.

[0031] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A pre-buried cable saddle structure for a long-span low tower cable-stayed bridge, comprising: a base (2) mounted on the top of a bridge tower (1) and a threaded rod (11) pre-buried into the outer wall of the top of the base (2); characterized in that it further comprises a mounting plate (3) arranged on the top of the base (2), a mounting rack (4) mounted on the top of the mounting plate (3), a cable saddle body (5) mounted on the top of the mounting rack (4), a sliding groove (6) opened on the outer wall of the top of the mounting plate (3), a sliding rod (7) fixed on the inner wall of the sliding groove (6), a first pulling assembly (8) and a second pulling assembly (9) respectively sleeved on both ends of the sliding rod (7), a limiting assembly (10) mounted on the inner wall of the top of the mounting rack (4) at both ends, and a through hole (13) opened on each corner of the outer wall of the top of the mounting plate (3).

2. The embedded cable saddle structure of the super-long span low-pylon cable-stayed bridge according to claim 1, characterized in that: The first pulling assembly (8) comprises a first sliding block (801), a first spring (802), a first pulling rope (803) connected to the top of the first sliding block (801), and a first fixed ring (804) connected to one end of the first pulling rope (803).

3. The embedded cable saddle structure of the super-long span low-pylon cable-stayed bridge according to claim 1, characterized in that: The second pulling assembly (9) comprises a second sliding block (901), a second spring (902), a second pulling rope (903) connected to the top of the second sliding block (901), and a second fixed ring (904) connected to one end of the second pulling rope (903).

4. The embedded cable saddle structure of the super-long span low-pylon cable-stayed bridge according to claim 1, characterized in that: The limiting assembly (10) comprises a fixed frame (1001) and a fixed pulley (1002) rotatably mounted on the inner wall of the fixed frame (1001) at both top and bottom ends.

5. The embedded cable saddle structure of the super-long span low-pylon cable-stayed bridge according to claim 1, characterized in that: The top of the base (2) is provided with a positioning groove (12), and the outer wall of the bottom of the mounting plate (3) is fixed with a positioning block (14).

6. The embedded cable saddle structure of the super-long span low-pylon cable-stayed bridge according to claim 1, characterized in that: The threaded rod (11) is provided with a matching nut.

Images