Auxiliary vibrating device for large-size box girder web template

Abstract

The utility model provides an auxiliary vibrating device for a large-volume box girder web template, which comprises an insertion pipe and an extension pipe, the lower end of the insertion pipe is an insertion end, the extension pipe extends into the insertion pipe from the upper end of the insertion pipe and is connected with the insertion pipe in a sliding manner, two first sliding chutes which are oppositely arranged are arranged on the inner wall of the insertion pipe, and the first sliding chutes are parallel to the axis of the insertion pipe; limiting blocks in one-to-one correspondence with the first sliding grooves are arranged on the outer wall of the extension pipe, the limiting blocks are limited in the first sliding grooves and are in sliding connection with the first sliding grooves, a threaded hole is formed in the side wall of the insertion pipe, a locking screw is arranged in the threaded hole, and the end of the locking screw can abut against the outer wall of the extension pipe; a first cleaning ring is arranged at the top end of the insertion pipe, the inner diameter of the first cleaning ring is equal to the outer diameter of the extension pipe, and the inner wall of the first cleaning ring can be attached to the outer wall of the extension pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to an auxiliary vibrating device for the abdominal formwork of a large-volume box girder. Background Technique

[0002] When casting the concrete of the cast-in-place box girder, in order to ensure the quality of the concrete casting, an inserted vibrator needs to be used for vibrating the concrete to ensure the quality of the concrete casting.

[0003] In order to avoid the inserted vibrator touching the surrounding steel bars, prestressed pipes and formwork when inserted, causing problems such as steel bar displacement, prestressed pipe and formwork damage, a vibrating auxiliary device will be used. For example, the patent application with the publication number of CN214831967U in the prior art. Through the limiting pipe and the insertion head, compared with the direct vibrating method in the prior art, the vibrating rod auxiliary device provided in this embodiment, the limiting pipe can guide and limit the vibrating rod, preventing the vibrating rod from colliding with the surrounding steel bars, prestressed pipes and formwork during the vibrating operation, avoiding problems such as steel bar displacement, prestressed pipe and formwork damage. The tip of the insertion head is provided with a first pointed protrusion, a second pointed protrusion and a third pointed protrusion, which reduces the resistance when the vibrating rod auxiliary device is inserted into and pulled out from the vibrating point, reduces the labor intensity. In addition, when the vibrating rod auxiliary device is inserted into the vibrating point before pouring, it can ensure that the inclination angle is the same as that of the inclined web of the box girder, so that the vibrating rod keeps the same inclination angle as the inclined web of the box girder after extending into the limiting pipe. During vibration, the air bubbles generated in the concrete can be effectively discharged, improving the casting quality of the inclined web of the box girder.

[0004] However, when this limiting pipe is in use, since its length is fixed, it cannot be adjusted according to the thickness of the concrete during the casting of the box girder. Therefore, the user needs to replace the limiting pipes with different lengths according to the casting depth, which reduces the adaptability of the auxiliary equipment. Summary of the Invention

[0005] The problem to be solved by the utility model is to provide an auxiliary vibrating device for the abdominal formwork of a large-volume box girder, which overcomes the deficiencies in the prior art.

[0006] To solve the above technical problems, the technical solution adopted by the present utility model is as follows: A large-volume box girder web formwork auxiliary vibration device, including an insertion pipe and an extension pipe. The lower end of the insertion pipe is the insertion end. The extension pipe extends into the insertion pipe from the upper end of the insertion pipe and is slidably connected to the insertion pipe. There are two first sliding grooves arranged oppositely on the inner wall of the insertion pipe. The first sliding grooves are parallel to the axis of the insertion pipe. There are limiting blocks on the outer wall of the extension pipe corresponding to the first sliding grooves one by one. The limiting blocks are limited in the first sliding grooves and are slidably connected to the first sliding grooves. There is a threaded hole on the side wall of the insertion pipe. There is a locking screw in the threaded hole. The end of the locking screw can abut against the outer wall of the extension pipe;

[0007] At the top of the insertion pipe, there is a first cleaning ring. The inner diameter of the first cleaning ring is equal to the outer diameter of the extension pipe. The inner wall of the first cleaning ring can fit with the outer wall of the extension pipe.

[0008] Optionally, there are two second sliding grooves arranged oppositely on the inner wall of the extension pipe. The second sliding grooves are parallel to the axis of the extension pipe. The second sliding grooves are through grooves penetrating the side wall of the extension pipe. There is a second cleaning ring near the upper end of the insertion pipe. There are sliding blocks on the outer wall of the second cleaning ring corresponding to the second sliding grooves one by one. The sliding blocks pass through the second sliding grooves and are fixed to the inner wall of the insertion pipe. The outer diameter of the second cleaning ring is equal to the inner diameter of the extension pipe. The outer wall of the second cleaning ring can fit with the inner wall of the extension pipe.

[0009] Optionally, the first sliding groove is a through groove penetrating the insertion pipe. A third cleaning ring is sleeved on the outer wall of the insertion pipe. The inner wall of the third cleaning ring is fixed to the limiting block passing through the first sliding groove. The inner diameter of the third cleaning ring is equal to the outer diameter of the insertion pipe. The inner wall of the third cleaning ring can fit with the outer wall of the insertion pipe.

[0010] Optionally, a rotating ring is sleeved on the extension pipe. Two annular baffles are arranged at intervals on the upper part of the extension pipe. The rotating ring is limited between the two baffles and is rotatably connected to the extension pipe. Two mounting plates are arranged oppositely on the outer wall of the rotating ring. A pull rope is connected between the two mounting plates and bypasses the top of the extension pipe.

[0011] The advantages and positive effects of the present utility model are as follows: By adopting the above technical solution, through the cooperation of structures such as the insertion tube and the extension tube, when vibrating concrete with different thicknesses, the user can, according to the usage situation, pull out the extension tube from the inner side of the insertion tube to adjust the length, so as to meet the use of concrete with different depths, thereby increasing the adaptability of the device. At the same time, when the extension tube is retracted, the adhesion on the inner and outer sides of the insertion tube and the inner side of the extension tube can be cleaned synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the overall structural schematic diagram of the first specific embodiment of the present utility model;

[0013] Figure 2 is Figure 1 the sectional structural schematic diagram in

[0014] Figure 3 is Figure 2 the enlarged structural schematic diagram at A in

[0015] Figure 4 is Figure 2 the enlarged structural schematic diagram at B in

[0016] Figure 5 is the overall structural schematic diagram of the second specific embodiment of the present utility model;

[0017] In the figure: 1. Insertion tube; 12. First cleaning ring; 13. Slide block; 14. Second cleaning ring; 15. First sliding groove; 2. Extension tube; 21. Second sliding groove; 22. Limit block; 23. Third cleaning ring; 3. Threaded hole; 31. Locking screw; 4. Rotating ring; 41. Mounting plate; 42. Pulling rope; 43. Baffle. SPECIFIC EMBODIMENTS

[0018] The present utility model will be further described in detail below in conjunction with specific 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. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "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 to the present utility model. In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations. Specific Embodiment 1:

[0020] As Figures 1-4 shown, the present utility model provides an auxiliary vibration device for the abdominal formwork of a large-volume box girder, including an insertion pipe 1 and an extension pipe 2. The lower end of the insertion pipe 1 is an insertion end. The extension pipe 2 extends into the insertion pipe 1 from the upper end of the insertion pipe 1 and is slidably connected to the insertion pipe 1. There are two first sliding grooves 15 arranged oppositely on the inner wall of the insertion pipe 1. The first sliding grooves 15 are parallel to the axis of the insertion pipe 1. There are limiting blocks 22 on the outer wall of the extension pipe 2 corresponding to the first sliding grooves 15 one by one. The limiting blocks 22 are limited in the first sliding grooves 15 and are slidably connected to the first sliding grooves 15. There is a threaded hole 3 on the side wall of the insertion pipe 1. There is a locking screw 31 in the threaded hole 3. The end of the locking screw 31 can abut against the outer wall of the extension pipe 2;

[0021] At the top of the insertion pipe 1, there is a first cleaning ring 12. The inner diameter of the first cleaning ring 12 is equal to the outer diameter of the extension pipe 2. The inner wall of the first cleaning ring 12 can be attached to the outer wall of the extension pipe 2.

[0022] On the inner wall of the extension pipe 2, there are two second sliding grooves 21 arranged oppositely. The second sliding grooves 21 are parallel to the axis of the extension pipe 2. The second sliding grooves 21 are through grooves penetrating the side wall of the extension pipe 2. Near the upper end of the insertion pipe 1, there is a second cleaning ring 14. On the outer wall of the second cleaning ring 14, there are sliding blocks 13 corresponding to the second sliding grooves 21 one by one. The sliding blocks 13 pass through the second sliding grooves 21 and are fixed to the inner wall of the insertion pipe 1. The outer diameter of the second cleaning ring 14 is equal to the inner diameter of the extension pipe 2, and the outer wall of the second cleaning ring 14 can be attached to the inner wall of the extension pipe 2.

[0023] The first sliding groove 15 is a through groove penetrating the insertion pipe 1. A third cleaning ring 23 is sleeved on the outer wall of the insertion pipe 1. The inner wall of the third cleaning ring 23 is fixed to the limiting block 22 passing through the first sliding groove 15. The inner diameter of the third cleaning ring 23 is equal to the outer diameter of the insertion pipe 1, and the inner wall of the third cleaning ring 23 can be attached to the outer wall of the insertion pipe 1.

[0024] The working principle of the above large-volume box girder abdominal formwork auxiliary vibrating device is as follows:

[0025] When in use, when the thickness of the concrete is large, the user can pull the extension pipe 2 upward from the inner side of the insertion pipe 1, so that the bottom of the extension pipe 2 moves out from the inner side of the insertion pipe 1. When it moves to an appropriate length, the user rotates the locking screw 31 to make the locking screw 31 threadedly connected to the inner side of the threaded hole 3, so that one end of the locking screw 31 abuts against the extension pipe 2 to limit and fix the extension pipe 2. Then the user inserts the vibrating rod into the extension pipe 2 and the insertion pipe 1 to vibrate the concrete. After use, when the extension pipe 2 is retracted into the insertion pipe 1, relative sliding occurs between the inner wall of the first cleaning ring 12 and the outer wall of the extension pipe 2, and the first cleaning ring 12 cleans the adhesives on the outer wall of the extension pipe 2; relative sliding occurs between the outer wall of the second cleaning ring 14 and the inner wall of the extension pipe 2, and the second cleaning ring 14 cleans the adhesives on the inner wall of the extension pipe 2; relative sliding occurs between the inner wall of the third cleaning ring 23 and the outer wall of the insertion pipe 1, and the third cleaning ring 23 cleans the adhesives on the outer wall of the insertion pipe 1. Specific embodiment two:

[0027] This embodiment is an improvement on the above structure. As Figure 5 shown, a rotating ring 4 is sleeved on the extension pipe 2. Two annular baffles 43 are arranged at intervals on the upper part of the extension pipe 2. The rotating ring 4 is limited between the two baffles 43 and is rotatably connected to the extension pipe 2. Two mounting plates 41 are arranged oppositely on the outer wall of the rotating ring 4. A pull rope 42 is connected between the two mounting plates 41 and bypasses the top of the extension pipe 2. During operation, the pull rope 42 rotates with the rotating ring 4 to prevent the pull rope 42 from being twisted together when the insertion pipe 1 rotates during hoisting.

[0028] The embodiments of the present utility model have been described in detail above. However, the above content is only the preferred embodiment of the present utility model and cannot be considered as limiting the implementation scope of the present utility model. All equivalent changes and improvements made according to the scope of the application of the present utility model shall still fall within the scope covered by the patent of the present utility model.

Claims

1. An auxiliary vibration device for the web formwork of a large-volume box girder, characterized in that: It includes an insertion tube and an extension tube. The lower end of the insertion tube is an insertion end. The extension tube extends into the insertion tube from the upper end of the insertion tube and is slidably connected to the insertion tube. There are two first sliding grooves arranged oppositely on the inner wall of the insertion tube. The first sliding grooves are parallel to the axis of the insertion tube. There are limiting blocks on the outer wall of the extension tube that correspond to the first sliding grooves one by one. The limiting blocks are limited in the first sliding grooves and are slidably connected to the first sliding grooves. There is a threaded hole on the side wall of the insertion tube. A locking screw is arranged in the threaded hole. The end of the locking screw can abut against the outer wall of the extension tube; At the top of the insertion tube, there is a first cleaning ring. The inner diameter of the first cleaning ring is equal to the outer diameter of the extension tube. The inner wall of the first cleaning ring can be attached to the outer wall of the extension tube.

2. The large-volume box girder web formwork auxiliary vibration device according to claim 1, wherein: There are two second sliding grooves arranged oppositely on the inner wall of the extension tube. The second sliding grooves are parallel to the axis of the extension tube. The second sliding grooves are through grooves penetrating the side wall of the extension tube. There is a second cleaning ring near the upper end of the insertion tube. There are sliding blocks on the outer wall of the second cleaning ring that correspond to the second sliding grooves one by one. The sliding blocks pass through the second sliding grooves and are fixed to the inner wall of the insertion tube. The outer diameter of the second cleaning ring is equal to the inner diameter of the extension tube. The outer wall of the second cleaning ring can be attached to the inner wall of the extension tube.

3. The large-volume box girder web formwork auxiliary vibration device according to claim 1, characterized in that: The first sliding groove is a through groove penetrating the insertion tube. A third cleaning ring is sleeved on the outer wall of the insertion tube. The inner wall of the third cleaning ring is fixed to the limiting block passing through the first sliding groove. The inner diameter of the third cleaning ring is equal to the outer diameter of the insertion tube. The inner wall of the third cleaning ring can be attached to the outer wall of the insertion tube.

4. The large-volume box girder web formwork auxiliary vibration device according to any one of claims 1-3, characterized in that: A rotating ring is sleeved on the extension tube. Two annular baffles are arranged at intervals on the upper part of the extension tube. The rotating ring is limited between the two baffles and is rotatably connected to the extension tube. Two mounting plates are arranged oppositely on the outer wall of the rotating ring. A pull rope that bypasses the top of the extension tube is connected between the two mounting plates.

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