Reducing protection device for preventing pier column from being polluted

Abstract

The utility model belongs to the technical field of bridge construction, and particularly relates to a variable-diameter protection device for preventing a pier column from being polluted. Comprising two arc-shaped steel hoops surrounding the two sides of a pier column, the two ends of the two steel hoops are connected through arc-shaped steel belt sliding ways respectively, screw rods are fixedly connected to the outer sides of the two ends of each steel hoop respectively, and sliding holes formed in the steel belt sliding ways in the length direction of the steel belt sliding ways are formed in the steel belt sliding ways. The screws on the ends, close to each other, of the two steel hoops are installed in the sliding holes of the corresponding steel belt sliding ways in a sliding mode, the ends, penetrating out of the sliding holes, of the screws are in threaded connection with fastening nuts, the outer sides of the top ends of the steel hoops are fixedly connected with umbrella-shaped protective covers inclining downwards, and the outer sides of the top ends of the steel belt sliding ways are fixedly connected with wing plates inclining downwards. The two steel hoops can slide relative to the steel belt slide ways, so that the size of the device is adjusted to adapt to pier columns with different section sizes, the adaptability is higher, the repeated utilization rate is higher, and the construction cost can be effectively reduced.

Description

Technical Field

[0001] This utility model belongs to the field of bridge construction technology, specifically relating to a diameter-changing protection device to prevent pollution of piers and columns. Background Technology

[0002] In bridge construction, piers, as important load-bearing structures, play a crucial role in connecting the abutment (or pile foundation) and the cap beam, transferring the loads from the bridge superstructure and deck to the ground. Moreover, column-type piers are widely used due to their numerous advantages.

[0003] After the pier construction is completed, during subsequent structural construction (such as cap beam construction), it often happens that grout, rust from reinforcing steel, etc., flow onto the pier surface. This not only damages the appearance of the pier, but more seriously, it can lead to contamination, causing secondary construction problems. Such secondary construction not only increases construction costs but also consumes a significant amount of human and material resources.

[0004] From a professional perspective, the quality and appearance protection of bridge piers are crucial to the overall durability and stability of the bridge. During construction, strict control of the construction process is essential to prevent contamination of the piers by various liquids. For example, grout may overflow during concrete pouring due to inadequate formwork sealing or excessive vibration, while rust-laden liquid is a liquid containing rust produced when reinforcing steel bars corrode in a humid environment. Both can corrode the concrete surface of the piers, affecting their structural performance and service life.

[0005] To prevent the piers from being contaminated and thus reduce the need for secondary construction, effective protective measures are required. A common protective measure is to install anti-pollution devices on the piers. However, the existing anti-pollution devices are all of fixed size and cannot be adjusted according to the size of the piers, resulting in poor adaptability and high construction costs. Utility Model Content

[0006] To address the problems existing in the prior art, this utility model provides a variable diameter protection device to prevent pier contamination, and specifically discloses the following technical solution:

[0007] A variable diameter protection device for preventing pier contamination includes two arc-shaped steel sleeves surrounding both sides of the pier. The two ends of the two steel sleeves are connected by an arc-shaped steel strip slide. A screw is fixedly connected to the outer side of each end of the steel sleeve. A sliding hole is provided on the steel strip slide along its length. The screws on the adjacent ends of the two steel sleeves are slidably installed in the sliding holes of the corresponding steel strip slides, and a fastening nut is threaded to one end of each screw protruding from the sliding hole. An inclined umbrella-shaped cover is fixedly connected to the outer side of the top of the steel sleeve, and an inclined wing plate is fixedly connected to the outer side of the top of the steel strip slide.

[0008] Furthermore, a first strip-shaped rubber pad is bonded to the inner side of the steel sleeve, and a second strip-shaped rubber pad is bonded to the inner side of the steel strip slide.

[0009] Furthermore, there are two second strip rubber pads, which are respectively bonded to the top and bottom of the sliding hole along the length of the steel strip track.

[0010] Furthermore, the umbrella-shaped protective cover includes sheet metal and supporting angle iron. The inner side of the sheet metal is fixedly connected to the top of the steel sleeve, and the outer side of the sheet metal is inclined downward. The supporting angle iron is fixedly connected between the lower surface of the sheet metal and the outer surface of the steel sleeve.

[0011] Furthermore, each of the steel sleeves is composed of two arc-shaped sleeve half plates spliced ​​together. The outer sides of the two sleeve half plates that are close to each other are fixedly connected with ear plates with mounting holes. The two ear plates are fixedly connected by bolts and nuts.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In this invention, the umbrella-shaped protective cover fixedly connected to the top of the steel sleeve can guide liquids such as grout and steel rust generated during the construction of the superstructure to flow to the ground, preventing these liquids from dripping onto the pier surface. Furthermore, the ends of the steel sleeves are connected by steel strip tracks, allowing both steel sleeves to slide relative to the steel strip tracks. This enables the device to be adjusted in size to accommodate piers with different cross-sectional dimensions, resulting in greater adaptability, higher reusability, and effectively reduced construction costs. Attached Figure Description

[0014] Figure 1 This is a top view of the present invention.

[0015] Figure 2 This is the front view of the present invention.

[0016] Figure 3 This is a schematic diagram of the steel sleeve and supporting angle iron in this utility model.

[0017] Figure 4 This is a top view of the steel strip slide in this utility model.

[0018] Figure 5 This is a left view of the steel strip slide in this utility model.

[0019] 1-First strip rubber pad; 2-Steel sleeve; 2a-Bolt; 3-Steel strip slide; 3a-Screw; 3b-Second strip rubber pad; 4-Umbrella-shaped cover; 4a-Angle iron; 4b-Sheet iron. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Reference Figure 1-5 A diameter-adjusting protection device for preventing pier contamination includes two arc-shaped steel sleeves 2 surrounding both sides of the pier. The two ends of the steel sleeves 2 are connected by an arc-shaped steel strip slide 3. Screws 3a are fixedly connected to the outer sides of both ends of the steel sleeves 2. Sliding holes are formed along the length of the steel strip slide 3. The screws 3a on the adjacent ends of the two steel sleeves 2 are slidably installed in the corresponding sliding holes of the steel strip slide 3, and a fastening nut is threaded onto one end of each screw 3a protruding from the sliding hole. A downward-sloping umbrella-shaped cover 4 is fixedly connected to the outer top of the steel sleeves 2, and a downward-sloping wing plate is fixedly connected to the outer top of the steel strip slide 3. The two steel sleeves 2 can slide along the sliding holes of the steel strip slide 3 towards each other or away from each other, thereby adjusting the diameter of the device to accommodate piers with different cross-sectional dimensions. After adjustment, the diameter of the device can be fixed by tightening the fastening nuts. The umbrella-shaped protective cover 4 can guide liquids such as grout and steel rust generated during the construction of the superstructure to flow down to the ground along its eaves, preventing these liquids from dripping onto the pier surface. At the same time, it can effectively prevent falling objects from the superstructure from affecting the aesthetics of the pier surface.

[0022] In this embodiment, a first strip-shaped rubber pad 1 is bonded to the inner side of the steel sleeve 2, and a second strip-shaped rubber pad 3b is bonded to the inner side of the steel strip slide 3. The inner surfaces of both the first strip-shaped rubber pad 1 and the second strip-shaped rubber pad 3b are in close contact with the surface of the pier column. This not only fills the gap between the device and the surface of the pier column, preventing grout from flowing along the gap to the surface of the pier column and causing contamination, but also increases the friction between the device and the pier column, improving the stability of the device.

[0023] In this embodiment, there are two second strip rubber pads 3b. In order not to interfere with the sliding hole, the two second strip rubber pads 3b are respectively bonded to the top and bottom of the sliding hole along the length of the steel strip slide 3.

[0024] In this embodiment, the umbrella-shaped protective cover 4 includes a sheet metal 4b and a supporting angle iron 4a. The inner side of the sheet metal 4b is fixedly connected to the top of the steel sleeve 2, and the outer side of the sheet metal 4b is inclined downward to facilitate the flow of slurry along it. The supporting angle iron 4a is fixedly connected between the lower surface of the sheet metal 4b and the outer side of the steel sleeve 2, thereby providing reliable support for the sheet metal 4b.

[0025] In this embodiment, each steel sleeve 2 is composed of two arc-shaped sleeve half plates spliced ​​together. The outer side of the two sleeve half plates that are close to each other is fixedly connected with ear plates with mounting holes. The two ear plates are fixedly connected by bolts 2a and nuts, which facilitates the installation and disassembly of the device.

[0026] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A variable diameter protection device for preventing contamination of pier columns, characterized in that, The system includes two arc-shaped steel sleeves surrounding both sides of the pier. The two ends of the two steel sleeves are connected by an arc-shaped steel strip track. A screw is fixedly connected to the outer side of each end of the steel sleeve. The steel strip track has sliding holes along its length. The screws on the close ends of the two steel sleeves are slidably installed in the corresponding sliding holes of the steel strip track, and a fastening nut is threaded to one end of each screw that protrudes from the sliding hole. An inclined umbrella-shaped cover is fixedly connected to the outer side of the top of the steel sleeve, and an inclined wing plate is fixedly connected to the outer side of the top of the steel strip track.

2. The variable diameter protection device for preventing pier contamination according to claim 1, characterized in that, A first strip-shaped rubber pad is bonded to the inner side of the steel sleeve, and a second strip-shaped rubber pad is bonded to the inner side of the steel strip slide.

3. A variable diameter protection device for preventing pier contamination according to claim 2, characterized in that, There are two second strip rubber pads, which are respectively bonded to the top and bottom of the sliding hole along the length of the steel strip track.

4. A variable diameter protection device for preventing pier contamination according to claim 1, characterized in that, The umbrella-shaped protective cover includes sheet metal and supporting angle iron. The inner side of the sheet metal is fixedly connected to the top of the steel sleeve, and the outer side of the sheet metal is inclined downward. The supporting angle iron is fixedly connected between the lower surface of the sheet metal and the outer surface of the steel sleeve.

5. A variable diameter protection device for preventing pier contamination according to claim 1, characterized in that, Each of the steel sleeves is composed of two arc-shaped sleeve halves spliced ​​together. The outer sides of the two sleeve halves that are close to each other are fixedly connected with ear plates with mounting holes. The two ear plates are fixedly connected by bolts and nuts.

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