Assembly type bridge construction device

Abstract

The utility model relates to bridge construction technical field discloses an assembly type bridge construction device, including upper bridge pier and lower bridge pier, the joint of upper bridge pier and lower bridge pier is provided with the joint seam, the inside of lower bridge pier is provided with the through groove, the outer wall one side of lower bridge pier is provided with the pouring hole, the pouring hole is linked with the through groove, the inside of pouring hole is provided with the pouring assembly for the pouring concrete to the through groove. The utility model discloses through concrete along T -shaped pipe injection pouring hole and the inside of through groove, concrete along the through groove from below and upwards and discharges the air in the inside of through groove, and makes concrete overflow from the joint seam and the air bleed hole, and air is discharged from the air bleed hole first, at this time, the through groove is full of concrete, and the concrete inputted by T -shaped pipe is backflowed to the gap between T -shaped pipe and the inner wall of grouting plug and is discharged into the backflow groove through the backflow pipe, and the joint seam is secondly grouted, thereby can reduce the bubble at the joint seam, and increase grouting effect.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a prefabricated bridge construction device. Background Technology

[0002] In traditional bridge pier construction, pouring operations are mostly carried out on-site, along with rebar tying, formwork erection, pouring, and demolding. This process is lengthy and has a significant impact on the surrounding traffic environment. Therefore, prefabricated bridge piers are becoming increasingly popular. However, the construction process for prefabricated bridge piers is very demanding, especially the construction tools used during assembly, which are crucial to the final quality and safety.

[0003] An existing prefabricated bridge construction device (publication number: CN222332482U) has at least the following drawbacks: The device is equipped with a return pipe and a one-way spring in the input pipe. When concrete is input, the one-way spring is closed, and when it returns, the spring is opened. However, since the concrete is in a continuous pouring state, and the input and return of the concrete are in the same channel, the input pressure of the concrete will cause the one-way spring to bounce in the opposite direction to allow the return concrete to flow in, which will cause blockage of the return of the concrete, affect the secondary grouting at the joint of the bridge pier, and result in poor grouting effect. Therefore, this utility model is proposed. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a prefabricated bridge construction device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A prefabricated bridge construction device includes an upper pier and a lower pier. A splicing joint is provided at the joint between the upper pier and the lower pier. A flow channel is provided inside the lower pier, and a pouring hole is provided on one side of the outer wall of the lower pier. The pouring hole is connected to the flow channel. A pouring component for pouring concrete into the flow channel is provided inside the pouring hole. The pouring component includes a grouting plug inserted into the pouring hole. A T-shaped tube is provided inside the grouting plug. A retaining ring is provided at the joint between the upper pier and the lower pier. A return channel is provided on the inner wall of the retaining ring. A return pipe is fixed between the outer wall of the grouting plug and the retaining ring.

[0007] As a further embodiment of this utility model, the circular end of the T-shaped tube is sealed and fixed to the inside of the grouting plug, one end of the return pipe is connected to the gap between the T-shaped tube and the inner wall of the grouting plug, and the other end of the return pipe is connected to the return groove.

[0008] As a further embodiment of this utility model, a vent hole is provided on the inner wall of the reflux trough away from the reflux pipe, and the vent hole is connected to the reflux trough.

[0009] As a further embodiment of this utility model, the outer wall of the lower pier is provided with several overflow holes, which are connected to the flow channel, and the overflow holes are equipped with grout stop plugs.

[0010] As a further embodiment of this utility model, the retaining ring is composed of two semi-circular rings, which are detachably installed by bolts and nuts, and a sealing ring is fixed inside the retaining ring.

[0011] As a further embodiment of this utility model, the bottom surface of the upper pier is provided with two positioning slots, and the top surface of the lower pier is provided with a positioning block at the corresponding positioning block position. The positioning block is adapted to be inserted into the positioning slot, and the flow groove is provided along the outer edge of the positioning block.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By installing a T-shaped tube inside the grouting plug, when concrete is poured into the grouting plug, the concrete flows along the T-shaped tube into the pouring hole and the flow channel. The concrete flows upward along the flow channel, expelling air from inside the channel and causing the concrete to overflow from the joint and the vent hole. The air is first expelled from the vent hole. At this time, the flow channel is filled with concrete. The concrete input through the T-shaped tube is pressurized and flows back to the gap between the T-shaped tube and the inner wall of the grouting plug, and is discharged into the return channel through the return pipe, performing secondary grouting at the joint. This reduces air bubbles at the joint, increases the grouting effect, and the T-shaped tube separates the concrete input and return into two flow channels, preventing blockage of the concrete return during pouring, increasing the reliability of the device, and ensuring the grouting effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a prefabricated bridge construction device proposed in this utility model.

[0015] Figure 2 This is a schematic planar sectional view of a prefabricated bridge construction device proposed in this utility model.

[0016] Figure 3 This is a three-dimensional sectional view of the grouting plug of a prefabricated bridge construction device proposed in this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the retaining ring of a prefabricated bridge construction device proposed in this utility model.

[0018] In the diagram: 1. Upper pier; 101. Lower pier; 102. Joint; 103. Flow channel; 104. Pouring hole; 2. Grouting plug; 201. T-shaped pipe; 202. Clamping ring; 203. Return channel; 204. Return pipe; 3. Vent hole; 4. Overflow hole; 401. Grout stop plug. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1-4 As shown, a prefabricated bridge construction device includes an upper pier 1 and a lower pier 101. A splicing joint 102 is provided at the joint between the upper pier 1 and the lower pier 101. A flow channel 103 is provided inside the lower pier 101. A pouring hole 104 is provided on one side of the outer wall of the lower pier 101. The pouring hole 104 is connected to the flow channel 103. A pouring component for pouring concrete into the flow channel 103 is provided inside the pouring hole 104. The pouring component includes a grouting plug 2 inserted into the pouring hole 104. A T-shaped tube 201 is provided inside the grouting plug 2. A retaining ring 202 is provided at the joint between the upper pier 1 and the lower pier 101. A return channel 203 is provided on the inner wall of the retaining ring 202. A return pipe 204 is fixed between the outer wall of the grouting plug 2 and the retaining ring 202.

[0023] like Figures 2-4As shown, in this embodiment, the circular end of the T-shaped pipe 201 is sealed and fixed to the inside of the grouting plug 2. One end of the return pipe 204 is connected to the gap between the inner wall of the T-shaped pipe 201 and the grouting plug 2, and the other end of the return pipe 204 is connected to the return groove 203. Concrete is injected into the pouring hole 104 from the grouting plug 2. The concrete flows along the T-shaped pipe 201 into the pouring hole 104 and the interior of the flow groove 103. The concrete flows from bottom to top along the flow groove 103 and is discharged from the flow groove 103. The air in the part is removed, and at this time the flow channel 103 is filled with concrete. The concrete input by the T-shaped pipe 201 is pressurized and flows back to the gap between the inner wall of the T-shaped pipe 201 and the grouting plug 2, and is discharged into the return channel 203 through the return pipe 204 to perform secondary grouting of the splice joint 102. Then it overflows from the vent hole 3, which can reduce the air bubbles at the splice joint 102, increase the grouting effect, and the setting of the T-shaped pipe 201 will not block the return of concrete during concrete grouting, thus increasing the reliability of the device.

[0024] like Figures 2-4 As shown, in this embodiment, the inner wall of the return channel 203 is provided with a vent hole 3 on the side away from the return pipe 204. The vent hole 3 is connected to the return channel 203. The air inside the flow channel 103 can be discharged through the vent hole 3 when the concrete flows from bottom to top along the flow channel 103, so that the air is discharged from the vent hole 3, and the overflowing concrete can also overflow from the vent hole 3.

[0025] like Figures 2-4 As shown in this embodiment, the outer wall of the lower pier 101 is provided with a plurality of overflow holes 4, which are connected to the flow channel 103. A grout stopper 401 is installed inside the overflow hole 4. By installing the grout stopper 401 inside the overflow hole 4, concrete is prevented from continuously being discharged from the overflow hole 4 during concrete pouring.

[0026] like Figures 2-4 As shown, in this embodiment, the retaining ring 202 is composed of two semicircular rings, which are detachably installed by bolts and nuts. A sealing ring is fixed inside the retaining ring 202. The retaining ring 202 is composed of two semicircular rings, which are detachably installed by bolts and nuts, making it easy to install and remove the retaining ring 202.

[0027] like Figures 2-4 As shown in this embodiment, the bottom surface of the upper pier 1 is provided with two positioning slots, and the top surface of the lower pier 101 is provided with a positioning block at the corresponding positioning block position. The positioning block is adapted to be inserted into the positioning slot. The flow groove 103 is opened along the outer edge of the positioning block. The two positioning slots on the bottom surface of the upper pier 1 and the positioning block at the corresponding positioning block position on the top surface of the lower pier 101, with the positioning block adapted to be inserted into the positioning slot, facilitate the positioning of the upper pier 1 and the lower pier 101.

[0028] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: In use, when construction is required on the upper pier 1 and the lower pier 101, a hoisting mechanism is used to splice the upper pier 1 and the lower pier 101 vertically and support them with a bracket. At this time, the positioning plug and the positioning slot are fitted and inserted. Then, the grouting plug 2 is installed with the pouring hole 104, and then concrete is injected into the pouring hole 104 from the grouting plug 2. When the overflow hole 4 begins to overflow with concrete, the overflow hole 4 is blocked with the grout stop plug 401, and the concrete is injected into the pouring hole 104 and the flow channel 103 along the T-shaped pipe 201. The concrete flows along the flow channel 10 3. The air inside the flow channel 103 flows from bottom to top and is discharged, allowing concrete to overflow from the splice joint 102 and the vent hole 3. The air is discharged from the vent hole 3 first. At this time, the flow channel 103 is filled with concrete. The concrete input by the T-tube 201 is pressurized and flows back to the gap between the inner wall of the T-tube 201 and the grout plug 2, and is discharged into the return channel 203 through the return pipe 204 to perform secondary grouting of the splice joint 102. Then it overflows from the vent hole 3, thereby reducing air bubbles at the splice joint 102, increasing the grouting effect, and the setting of the T-tube 201 will not block the return of concrete during concrete grouting, increasing the reliability of the device.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A prefabricated bridge construction device, comprising an upper pier (1) and a lower pier (101), characterized in that, A splicing joint (102) is provided at the joint between the upper pier (1) and the lower pier (101). A flow channel (103) is provided inside the lower pier (101). A pouring hole (104) is provided on one side of the outer wall of the lower pier (101). The pouring hole (104) is connected to the flow channel (103). A pouring component for pouring concrete into the flow channel (103) is provided inside the pouring hole (104). The pouring component includes a grouting plug (2) inserted into the pouring hole (104). A T-shaped grouting plug (2) is provided inside the grouting plug (2). Pipe (201), a retaining ring (202) is provided at the splice of the upper pier (1) and the lower pier (101). The inner wall of the retaining ring (202) is provided with a return groove (203). The outer wall of the grouting plug (2) is fixed with a return pipe (204) between it and the retaining ring (202). The circular end of the T-shaped pipe (201) is sealed and fixed to the inside of the grouting plug (2). One end of the return pipe (204) is connected to the gap between the inner wall of the T-shaped pipe (201) and the grouting plug (2), and the other end of the return pipe (204) is connected to the return groove (203).

2. The prefabricated bridge construction device according to claim 1, characterized in that, The inner wall of the reflux trough (203) is provided with a vent hole (3) on the side away from the reflux pipe (204), and the vent hole (3) is connected to the reflux trough (203).

3. The prefabricated bridge construction device according to claim 2, characterized in that, The outer wall of the lower pier (101) is provided with several overflow holes (4), which are connected to the flow channel (103). A grout stop plug (401) is installed inside the overflow hole (4).

4. The prefabricated bridge construction device according to claim 3, characterized in that, The retaining ring (202) consists of two semicircular rings, which are detachably installed by bolts and nuts. A sealing ring is fixed inside the retaining ring (202).

5. The prefabricated bridge construction device according to claim 4, characterized in that, The bottom surface of the upper pier (1) is provided with two positioning slots, and the top surface of the lower pier (101) is provided with a positioning block at the corresponding positioning block position. The positioning block is inserted into the positioning slot and the flow groove (103) is opened along the outer edge of the positioning block.

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