Expansion device for through steel tube arch bridge

Abstract

The utility model discloses a through steel tube arch bridge expansion device, which belongs to the technical field of bridge engineering, and is characterized by comprising a first expansion component and a second expansion component, the inner wall of the first expansion component is bolted with a communicating pipe, and the right side of the communicating pipe is fixedly communicated with a blowing mechanism; a filtering assembly is arranged on the inner wall of the second telescopic assembly, a buffering assembly is bolted to the front side of the second telescopic assembly, and the problems that an existing through steel pipe arch bridge telescopic device is prone to being blocked and accumulated by foreign matter in the using process, the telescopic space of the telescopic device is occupied by accumulation of the foreign matter, and consequently the device cannot stretch out and draw back normally are solved. The problems that when the air temperature changes greatly, a bridge structure needs to stretch out and draw back, but due to the fact that blocking cannot be achieved, extra internal force is possibly generated, the bridge structure is damaged, and the using effect is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering, and particularly relates to a expansion device for a through type steel pipe arch bridge. Background Art

[0002] The expansion device for a through type steel pipe arch bridge is a device used for a through type steel pipe arch bridge. It can effectively reduce the expansion and contraction deformation of the bridge under the action of factors such as temperature change and vehicle load, thereby ensuring the safety and stability of the bridge. The expansion device for a through type steel pipe arch bridge is a very important bridge accessory facility. It has the characteristics of strong deformation adaptability, high bearing capacity, good waterproof performance, convenient maintenance, beautiful appearance, etc., and is applicable to various highway bridges, railway bridges, urban bridges, cross-sea bridges, etc.

[0003] Currently, the Chinese patent with the publication number CN219319432U discloses a measuring prism device for the column foot of the upper column of a through type steel pipe arch bridge. One end of an aluminum alloy cylinder is provided with a telescopically connected rod member. One end of the telescopically connected rod member is fixedly connected with a baffle plate. The other end of the telescopically connected rod member is provided with a rotatably connected rotating ball. The outer side of the rotating ball is provided with prism rod clamping grooves distributed in a circumferential array and fixedly connected. A clamped prism rod is arranged on the prism rod clamping grooves. The upper end of the prism rod is fixedly connected with a measuring prism head. This utility model can embed the measuring prism into the column foot bolt hole, which not only ensures the accuracy of all aspects of the measuring prism, reduces the influence of the error of manually erecting the prism, but also ensures the safety of manually erecting the prism.

[0004] However, foreign objects are prone to block and accumulate in the existing expansion device for a through type steel pipe arch bridge during use. The accumulation of foreign objects will occupy the expansion space of the expansion device, resulting in the device being unable to expand and contract normally, affecting the bridge's adaptation to temperature changes and the deformation caused by vehicle load. For example, when the temperature changes greatly, the bridge structure needs to expand and contract, but it cannot be achieved due to blockage, which may generate additional internal forces and cause damage to the bridge structure. In addition, the transition between the expansion device and the bridge structure is not smooth, which is also likely to cause impact and vibration when the vehicle is driving, making it inconvenient for users to use. Summary of the Utility Model

[0005] The utility model provides a expansion device for a through - type steel pipe arch bridge, aiming at solving the problem that the existing expansion device for a through - type steel pipe arch bridge is prone to foreign matter blockage and accumulation during use. The accumulation of foreign matter will occupy the expansion space of the expansion device, resulting in the device being unable to expand and contract normally, affecting the bridge's adaptation to temperature changes and deformations caused by vehicle loads. For example, when the temperature changes greatly, the bridge structure needs to expand and contract, but due to blockage, it cannot be achieved, which may generate additional internal forces and damage the bridge structure. In addition, the transition between the expansion device and the bridge structure is not smooth, which is also likely to cause impacts and vibrations when the vehicle is driving, thus affecting the use effect.

[0006] The utility model is realized as follows: An expansion device for a through - type steel pipe arch bridge includes a first expansion component and a second expansion component. A connecting pipe is bolted to the inner wall of the first expansion component. The right side of the connecting pipe is fixedly connected to a blowing mechanism. A filtering component is arranged on the inner wall of the second expansion component. A buffer component is bolted to the front side of the second expansion component. An anchor plate is bolted to the front side of the buffer component. Anchor bars are welded to the left side of the anchor plate.

[0007] The blowing mechanism includes a connecting plate, a connecting rod, and a jet head. The rear side of the connecting plate is fixedly connected to the front side of the connecting pipe. The front side of the connecting plate is fixedly connected to the rear side of the connecting rod. The front side of the connecting pipe is fixedly connected to the rear side of the jet head.

[0008] In order to achieve the effect of installing a stainless - steel drainage trough on the inner walls of the first expansion component and the second expansion component, as a preferred embodiment of the expansion device for a through - type steel pipe arch bridge of the utility model, a stainless - steel drainage trough is clamped to the inner wall of the first expansion component, and the surface of the stainless - steel drainage trough is clamped to the inner wall of the second expansion component.

[0009] In order to achieve the effect of facilitating the installation of the stainless - steel drainage, as a preferred embodiment of the expansion device for a through - type steel pipe arch bridge of the utility model, a first clamping groove for cooperating with the stainless - steel drainage trough is formed on the inner wall of the first expansion component, and a second clamping groove for cooperating with the stainless - steel drainage trough is formed on the inner wall of the second expansion component.

[0010] In order to achieve the effect of the buffer component buffering the transitional force of the second expansion component, as a preferred embodiment of the expansion device for a through - type steel pipe arch bridge of the utility model, the buffer component includes a spring and a high - damping rubber frame. The rear side of the high - damping rubber frame is bolted to the front side of the second expansion component. The front side of the high - damping rubber frame is bolted to the rear side of the anchor plate. The spring is sleeved on the surface of the high - damping rubber frame.

[0011] In order to achieve the effect of fixing the position of the protective frame, as a preferred embodiment of the expansion device for a through - type steel pipe arch bridge of the utility model, a protective frame is bolted to the front side of the second expansion component, and the surface of the anchor plate is movably connected to the inner wall of the protective frame.

[0012] In order to achieve the effect of the anchor plate moving inside the protective frame, as an optimization of the expansion device of the through - type steel pipe arch bridge of the present utility model, an activity groove for cooperating with the anchor plate is provided on the inner wall of the protective frame, and a protective groove is provided on the inner wall of the protective frame.

[0013] In order to achieve the effect of the filtering component filtering foreign matters, as an optimization of the expansion device of the through - type steel pipe arch bridge of the present utility model, the filtering component includes a filter screen and a mounting frame. The surface of the filter screen is bolted to the inner wall of the mounting frame, and the surface of the mounting frame is fixedly connected to the inner wall of the second expansion component.

[0014] In order to achieve the effect of the bolt rotating inside the mounting frame and the inner wall of the second expansion component, as an optimization of the expansion device of the through - type steel pipe arch bridge of the present utility model, a bolt is movably connected to the inner wall of the mounting frame, and the surface of the bolt is threadedly connected to the inner wall of the second expansion component.

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

[0016] For the expansion device of the through - type steel pipe arch bridge, by setting the first expansion component, the second expansion component, the connecting pipe, the blowing mechanism, the filtering component, the buffer component, the anchor plate and the anchor bar, during use, the position of the buffer component is fixed with the second expansion component, and the position of the buffer component is fixed with the anchor plate, which is convenient for subsequent buffering through the buffer component. When a vehicle passes, it can absorb vibration energy and reduce the generation of noise. For example, a special damping rubber pad is used, which contains tiny pore structures inside and can effectively consume vibration energy. Then, the filtering component is installed on the inner wall of the second expansion component, which is convenient for the work of filtering foreign matters, avoiding the abnormal expansion of the first expansion component and the second expansion component caused by the blockage of foreign matters, and facilitating subsequent cleaning. Then, the jet head is communicated with the connecting rod, which is convenient for subsequent transmission of gas through the connecting pipe to the inner wall of the connecting plate, and the connecting plate transmits the gas to the inner wall of the jet head to make the jet head jet gas, which is convenient for starting the compressed air purging device regularly to blow out the accumulated foreign matters and facilitate the work of cleaning foreign matters, thus facilitating the use by the user. Description of the Drawings

[0017] Figure 1 It is the overall structure diagram of the expansion device of the through - type steel pipe arch bridge of the present utility model;

[0018] Figure 2 It is the structure diagram of the anchor bar in the present utility model;

[0019] Figure 3 It is the structure diagram of the filtering component in the present utility model;

[0020] Figure 4This is the structural diagram of the buffer assembly in the present utility model;

[0021] Figure 5 This is the structural diagram of the blowing mechanism in the present utility model.

[0022] In the figure, 1 is the first telescopic assembly; 2 is the blowing mechanism; 201 is the connecting plate; 202 is the connecting rod; 203 is the jet head; 3 is the buffer assembly; 301 is the spring; 302 is the high-damping rubber frame; 4 is the filtering assembly; 401 is the filter screen; 402 is the mounting frame; 5 is the second telescopic assembly; 6 is the connecting pipe; 7 is the anchor plate; 8 is the anchor bar; 9 is the stainless steel drainage trough; 10 is the first card slot; 11 is the second card slot; 12 is the protective frame; 13 is the movable slot; 14 is the protective slot; 15 is the bolt. Detailed implementation manners

[0023] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, in the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0025] Please refer to Figures 1-5 , the present utility model provides a technical solution: a telescopic device for a through-arch steel pipe arch bridge, including a first telescopic assembly 1 and a second telescopic assembly 5. A connecting pipe 6 is bolted to the inner wall of the first telescopic assembly 1. The right side of the connecting pipe 6 is fixedly connected to a blowing mechanism 2. A filtering assembly 4 is arranged on the inner wall of the second telescopic assembly 5. A buffer assembly 3 is bolted to the front side of the second telescopic assembly 5. An anchor plate 7 is bolted to the front side of the buffer assembly 3. An anchor bar 8 is welded to the left side of the anchor plate 7;

[0026] The blowing mechanism 2 includes a connecting plate 201, a connecting rod 202 and a jet head 203. The rear side of the connecting plate 201 is fixedly connected to the front side of the connecting pipe 6. The front side of the connecting plate 201 is fixedly connected to the rear side of the connecting rod 202. The front side of the connecting pipe 6 is fixedly connected to the rear side of the jet head 203.

[0027] In this embodiment: By setting the first telescopic component 1, the second telescopic component 5, the connecting pipe 6, the blowing mechanism 2, the filtering component 4, the buffer component 3, the anchor plate 7 and the anchor bars 8, during use, the position of the buffer component 3 is fixed with that of the second telescopic component 5, and the position of the buffer component 3 is fixed with that of the anchor plate 7, which facilitates subsequent buffering through the buffer component 3. When the vehicle passes by, it can absorb vibration energy and reduce noise generation. For example, a special damping rubber pad is used, which contains tiny pore structures inside and can effectively consume vibration energy. Then, the filtering component 4 is installed on the inner wall of the second telescopic component 5 to facilitate the work of foreign object filtering, avoid blockage caused by foreign objects and prevent the first telescopic component 1 and the second telescopic component 5 from not being able to extend and retract normally, and facilitate subsequent cleaning. Then, the jet head 203 is connected to the connecting rod 202, which facilitates subsequent transmission of gas through the connecting pipe 6 to the inner wall of the connecting plate 201, and the connecting plate 201 transmits the gas to the inner wall of the jet head 203 to make the jet head 203 jet gas. It is convenient to regularly start the compressed air purging device to blow out the accumulated foreign objects, facilitate the work of foreign object cleaning, and facilitate the user to use.

[0028] As a technical optimization scheme of the present utility model, a stainless - steel drainage groove 9 is clamped inside the first telescopic component 1, and the surface of the stainless - steel drainage groove 9 is clamped with the inner wall of the second telescopic component 5.

[0029] In this embodiment: By setting the stainless - steel drainage groove 9, during use, the stainless - steel drainage groove 9 is installed on the inner walls of the first telescopic component 1 and the second telescopic component 5, which is convenient for preventing the accumulation of water and debris from mixing to form mud and causing more serious blockage, so as to timely drain rainwater and accumulated water, prevent water from accumulating inside the device, affect its performance and service life, and keep the drainage channel unobstructed to avoid blockage.

[0030] As a technical optimization scheme of the present utility model, a first clamping groove 10 for cooperating with the stainless - steel drainage groove 9 is opened on the inner wall of the first telescopic component 1, and a second clamping groove 11 for cooperating with the stainless - steel drainage groove 9 is opened on the inner wall of the second telescopic component 5.

[0031] In this embodiment: Through the first clamping groove 10 opened on the inner wall of the first telescopic component 1, it is convenient for the stainless - steel drainage groove 9 to be clamped on the inner wall of the first telescopic component 1 through the first clamping groove 10. Through the second clamping groove 11 opened on the inner wall of the second telescopic component 5, it is convenient for the stainless - steel drainage groove 9 to be installed on the inner wall of the second telescopic component 5 through the second clamping groove 11.

[0032] As a technical optimization scheme of the present utility model, the buffer component 3 includes a spring 301 and a high - damping rubber frame 302. The rear side of the high - damping rubber frame 302 is bolted to the front side of the second telescopic component 5, the front side of the high - damping rubber frame 302 is bolted to the rear side of the anchor plate 7, and the spring 301 is sleeved on the surface of the high - damping rubber frame 302.

[0033] In this embodiment: By providing the spring 301 and the high-damping rubber frame 302, during use, the position of the high-damping rubber frame 302 is fixed with the second telescopic assembly 5, and the position of the high-damping rubber frame 302 is fixed with the anchor plate 7. The spring 301 is sleeved on the surface of the high-damping rubber frame 302. When a vehicle passes by, it can absorb vibration energy and reduce the generation of noise.

[0034] As a technical optimization solution of the present utility model, a protective frame 12 is bolted to the front side of the second telescopic assembly 5, and the surface of the anchor plate 7 is movably connected to the inner wall of the protective frame 12.

[0035] In this embodiment: By providing the protective frame 12, during use, the position of the protective frame 12 is fixed with the second telescopic assembly 5, facilitating the movement of the spring 301 and the high-damping rubber frame 302 on the inner wall of the protective frame 12.

[0036] As a technical optimization solution of the present utility model, a movable groove 13 for cooperating with the anchor plate 7 is provided on the inner wall of the protective frame 12, and a protective groove 14 is provided on the inner wall of the protective frame 12.

[0037] In this embodiment: Through the movable groove 13 provided on the inner wall of the protective frame 12, it is convenient for the anchor plate 7 to move on the inner wall of the protective frame 12 through the movable groove 13. Through the protective groove 14 provided on the inner wall of the protective frame 12, it is convenient for the spring 301 and the high-damping rubber frame 302 to move on the inner wall of the protective frame 12 through the protective groove 14.

[0038] As a technical optimization solution of the present utility model, the filtering assembly 4 includes a filter screen 401 and a mounting frame 402. The surface of the filter screen 401 is bolted to the inner wall of the mounting frame 402, and the surface of the mounting frame 402 is fixedly connected to the inner wall of the second telescopic assembly 5.

[0039] In this embodiment: By providing the filter screen 401 and the mounting frame 402, during use, the position of the mounting frame 402 is fixed with the filter screen 401, facilitating the subsequent work of driving the filter screen 401 by the mounting frame 402 to filter foreign objects, which is convenient for the user to use.

[0040] As a technical optimization solution of the present utility model, a bolt 15 is movably connected to the inner wall of the mounting frame 402, and the surface of the bolt 15 is threadedly connected to the inner wall of the second telescopic assembly 5.

[0041] In this embodiment: By providing the bolt 15, during use, the bolt 15 rotates on the inner walls of the mounting frame 402 and the second telescopic assembly 5, facilitating the fixing of the position of the mounting frame 402, and facilitating the subsequent work of driving the filter screen 401 by the mounting frame 402 to filter.

[0042] Working principle: First, during use, the positions of the buffer component 3 and the second telescopic component 5 are fixed, and the positions of the buffer component 3 and the anchor plate 7 are fixed, facilitating subsequent buffering through the buffer component 3. When the vehicle passes by, it can absorb vibration energy and reduce noise generation. For example, a special damping rubber pad is used, which contains tiny pore structures inside and can effectively consume vibration energy. Then, the filtering component 4 is installed on the inner wall of the second telescopic component 5 to facilitate the work of foreign object filtering, avoiding the first telescopic component 1 and the second telescopic component 5 from being unable to expand and contract normally due to foreign object blockage, and facilitating subsequent cleaning. Then, the jet head 203 is communicated with the connecting rod 202, facilitating subsequent transmission of gas through the connecting pipe 6 to the inner wall of the connecting plate 201, facilitating the connecting plate 201 to transmit the gas to the inner wall of the jet head 203, enabling the jet head 203 to jet gas, facilitating subsequent regular startup of the compressed air purging device to blow out the accumulated foreign objects, facilitating the work of foreign object cleaning, and facilitating the user to use.

[0043] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A telescopic device for a through-type steel tube arch bridge, comprising a first telescopic assembly (1) and a second telescopic assembly (5), characterized in that: The inner wall of the first telescopic component (1) is bolted with a connecting pipe (6), the right side of the connecting pipe (6) is fixedly connected with a blower mechanism (2), the inner wall of the second telescopic component (5) is provided with a filter component (4), the front side of the second telescopic component (5) is bolted with a buffer component (3), the front side of the buffer component (3) is bolted with an anchor plate (7), and the left side of the anchor plate (7) is welded with an anchor bar (8); The hair dryer mechanism (2) comprises a connecting plate (201), a connecting rod (202) and a nozzle (203); the rear side of the connecting plate (201) is fixedly connected to the front side of the connecting pipe (6); the front side of the connecting plate (201) is fixedly connected to the rear side of the connecting rod (202); and the front side of the connecting pipe (6) is fixedly connected to the rear side of the nozzle (203).

2. The telescopic device of a through-type steel tube arch bridge according to claim 1, characterized in that: A stainless steel drainage groove (9) is clamped on the inner wall of the first telescopic component (1), and the surface of the stainless steel drainage groove (9) is clamped on the inner wall of the second telescopic component (5).

3. The telescopic device of a through-type steel tube arch bridge according to claim 2, characterized in that: The inner wall of the first telescopic component (1) is provided with a first clamping groove (10) for use in conjunction with the stainless steel drainage groove (9), and the inner wall of the second telescopic component (5) is provided with a second clamping groove (11) for use in conjunction with the stainless steel drainage groove (9).

4. The telescopic device for a through-type steel tube arch bridge according to claim 1, characterized in that: The buffer assembly (3) comprises a spring (301) and a high damping rubber frame (302); the rear side of the high damping rubber frame (302) is bolted to the front side of the second telescopic assembly (5); the front side of the high damping rubber frame (302) is bolted to the rear side of the anchor plate (7); and the spring (301) is sleeved on the surface of the high damping rubber frame (302).

5. The telescopic device of a through-type steel tube arch bridge according to claim 1, characterized in that: A protective frame (12) is bolted to the front side of the second telescopic assembly (5), and the surface of the anchor plate (7) is movably connected to the inner wall of the protective frame (12).

6. The expansion device of a through-type steel tube arch bridge according to claim 5, characterized in that: The inner wall of the protection frame (12) is provided with a movable groove (13) for use with the anchor plate (7), and the inner wall of the protection frame (12) is provided with a protection groove (14).

7. The telescopic device of a through-type steel tube arch bridge according to claim 1, characterized in that: The filter assembly (4) comprises a filter screen (401) and a mounting frame (402); the surface of the filter screen (401) is bolted to the inner wall of the mounting frame (402); and the surface of the mounting frame (402) is fixedly connected to the inner wall of the second telescopic assembly (5).

8. The expansion device of a through-type steel tube arch bridge according to claim 7, characterized in that: The inner wall of the mounting frame (402) is movably connected with a bolt (15), and the surface of the bolt (15) is threadedly connected to the inner wall of the second telescopic component (5).

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