Concrete pouring joint mechanism and arch bridge concrete pouring device

Abstract

The utility model discloses a concrete pouring joint mechanism and an arch bridge concrete pouring device, and relates to the technical field of concrete pouring, the concrete pouring joint mechanism comprises a first connecting pipe and a second connecting pipe, and further comprises a telescopic mechanism, and the telescopic mechanism comprises a telescopic pipe and two connecting parts arranged at the two ends of the telescopic pipe. Through the arranged telescopic pipe, the first connecting pipe and the second connecting pipe can be connected in a telescopic mode, the first connecting pipe or the second connecting pipe does not need to be lifted, aligned and installed, the connecting operation can be completed only by bending the telescopic pipe, and therefore the installation time is saved, and too much time does not need to be delayed; therefore, the solidification and blockage of the concrete in the pipe are avoided; and through the arranged fixing mechanism, the bending telescopic length of the telescopic pipe can be fixed, and the situation that when the pressure intensity in the pipeline is increased, the whole telescopic pipe shakes, and the fixing firmness between the telescopic pipe and the first connecting pipe and between the telescopic pipe and the second connecting pipe is affected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete pouring technical field, concretely is concrete pouring joint mechanism and arch bridge concrete pouring device. BACKGROUND

[0002] It is known that concrete pouring refers to pouring concrete into a pre-made form until the concrete is plasticized.

[0003] In the disclosed "Data-driven optimization model for large-span rigid skeleton arch bridge concrete construction", to achieve the increase of the span of the rigid skeleton steel pipe concrete arch bridge from 445 meters to 600 meters, the challenge of instantaneous stress in the arch ring concrete pouring process needs to be addressed. Among them, the instantaneous stress is the stress that the rigid skeleton needs to withstand during the arch ring concrete pouring process. Therefore, during the construction process, the wrapped concrete will generate strong instantaneous stress, so the wrapped concrete construction needs to be completed in multiple sections, and during the multi-section construction process, multiple concrete conveying pipes need to be connected to meet the pouring requirements at different positions on the arch bridge.

[0004] However, in the existing concrete pipe connection process, each section of pipe needs to be aligned and overlapped, and then fixed and connected by screws. Since the adjacent two sections of pipe need to be lifted and kept in the same straight line at some positions on the arch bridge, the installation and connection process is time-consuming, and during the connection delay time, the concrete in the previous section of pipe is prone to solidification, causing the concrete to block in the pipe and affecting the overall delivery of the subsequent concrete. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a concrete pouring joint mechanism and an arch bridge concrete pouring device to solve the above problems.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] The concrete pouring joint mechanism comprises a first connecting pipe and a second connecting pipe, and further comprises an extension mechanism, the extension mechanism comprises an extension pipe and two connecting parts provided at both ends of the extension pipe, the two connecting parts are connected to the first connecting pipe and the second connecting pipe respectively, and a fixing mechanism is further arranged on the extension mechanism, and the fixing mechanism is used for fixing the extension length of the extension pipe.

[0008] The concrete pouring joint mechanism described above, the extension pipe comprises two oppositely arranged connecting parts, one connecting part is connected to the first connecting pipe through a screw, and the other connecting part is connected to the second connecting pipe through a screw.

[0009] The concrete pouring joint mechanism, the first connecting pipe, the telescopic pipe and the second connecting pipe are in a communication state, so that the concrete is normally conveyed.

[0010] The concrete pouring joint mechanism, the fixing mechanism comprises a first fixing plate and a second fixing plate, one side of the first fixing plate is rotationally connected with a connecting rod, the second fixing plate is provided with a movable hole, one end of the connecting rod penetrates through the movable hole and extends to the outside of the movable hole, and one end of the connecting rod extending to the outside of the movable hole is threadedly connected with a fixing nut.

[0011] The concrete pouring joint mechanism, the fixing nut abuts against the second fixing plate.

[0012] The concrete pouring joint mechanism, a spiral groove is formed in the outer surface of the connecting rod, and the spiral groove is matched with the fixing nut.

[0013] The concrete pouring joint mechanism, a protection plate is rotationally connected to the connecting rod, an arc-shaped groove is formed in the protection plate, a plurality of protrusions are arranged on the arc-shaped groove, and the protrusions are in contact with the outer surface of the telescopic pipe.

[0014] The concrete pouring joint mechanism, the arc-shaped groove is matched with the telescopic pipe, and the plurality of protrusions are used for supporting the curved state of the telescopic pipe.

[0015] The concrete pouring joint mechanism, the material of the protrusions is rubber.

[0016] The arch bridge concrete pouring device comprises the concrete pouring joint mechanism and further comprises a pump body, the first connecting pipe is communicated with the pump body, and the second connecting pipe is communicated through a pouring pipe.

[0017] In the technical scheme, the concrete pouring joint mechanism is provided with the telescopic pipe, so that the first connecting pipe and the second connecting pipe can be telescopically connected, the first connecting pipe or the second connecting pipe does not need to be lifted and aligned for installation, and the connection operation can be completed only by bending the telescopic pipe, thereby saving the installation time and avoiding the solidification and blockage of the concrete in the pipe due to the waste of too much time. BRIEF DESCRIPTION OF DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the concrete pouring joint mechanism provided in this embodiment of the utility model;

[0020] Figure 2 for Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0021] Figure 3 for Figure 1 A structural schematic diagram of the middle protective plate from another perspective.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. First connecting pipe; 2. Second connecting pipe; 3. Telescopic pipe; 4. Connecting part; 5. First fixing plate; 6. Second fixing plate; 7. Connecting rod; 8. Movable hole; 9. Fixing nut; 10. Spiral groove; 11. Protective plate; 12. Arc groove; 13. Protrusion. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] like Figures 1-3 As shown, the concrete pouring joint mechanism provided in this embodiment includes a first connecting pipe 1 and a second connecting pipe 2, and also includes a telescopic mechanism. The telescopic mechanism includes a telescopic pipe 3 and two connecting parts 4 disposed at both ends of the telescopic pipe 3. The two connecting parts 4 are respectively connected to the first connecting pipe 1 and the second connecting pipe 2. The telescopic mechanism is also provided with a fixing mechanism, which is used to fix the telescopic length of the telescopic pipe 3.

[0026] Specifically, the first connecting pipe 1 and the second connecting pipe 2 are arranged on the ground, and one end of the first connecting pipe 1 is connected to an external pump body. By starting the external pump body, the mixed concrete is sucked up by the pump body and transported to the inside of the first connecting pipe 1. Through the connection with the second connecting pipe 2, the concrete is transported to the inside of the second connecting pipe 2 until it is transported to the pouring position on the bridge body.

[0027] The novelty of the embodiment is that a telescopic mechanism is further included, the telescopic mechanism includes a telescopic pipe 3 and two connecting portions 4 arranged at two ends of the telescopic pipe 3, the two connecting portions 4 are respectively connected to the first connecting pipe 1 and the second connecting pipe 2, and a fixing mechanism is further arranged on the telescopic mechanism and used for fixing the telescopic length of the telescopic pipe 3.

[0028] Specifically, the telescopic pipe 3 includes two oppositely arranged connecting portions 4, and the two connecting portions 4 are respectively connected to the first connecting pipe 1 and the second connecting pipe 2 through screws, so that the telescopic pipe 3, the first connecting pipe 1 and the second connecting pipe 2 are in a connected state, and when the concrete is conveyed, the concrete passes through the first connecting pipe 1, enters the telescopic pipe 3 and then enters the second connecting pipe 2.

[0029] In the embodiment, when the first connecting pipe 1 and the second connecting pipe 2 are connected, the two pipes do not need to be lifted and aligned for butt joint installation, but only one connecting portion 4 on the telescopic pipe 3 is connected to the first connecting pipe 1 through a screw, then the telescopic pipe 3 is bent, the other connecting portion 4 on the telescopic pipe 3 is connected to the second connecting pipe 2, and then the screw is fixed, so that the first connecting pipe 1 and the second connecting pipe 2 are connected.

[0030] In order to fix the telescopic length of the telescopic pipe 3 and avoid the movement between the first connecting pipe 1 and the second connecting pipe 2 when the concrete is conveyed, a fixing mechanism is arranged on the telescopic mechanism, the fixing mechanism includes a first fixing plate 5 and a second fixing plate 6, one side of the first fixing plate 5 is rotationally connected with a connecting rod 7, the second fixing plate 6 is provided with a movable hole 8, one end of the connecting rod 7 penetrates through the movable hole 8 and extends to the outside of the movable hole 8, and a fixed nut 9 is threadedly connected to one end of the connecting rod 7 extending to the outside of the movable hole 8.

[0031] In the embodiment, the movable hole 8 is arranged to provide a rotation gap for the rotation of the connecting rod 7, so as to adapt to the telescopic and bent length of the telescopic pipe 3.

[0032] Specifically, a spiral groove 10 is arranged on the outer surface of the connecting rod 7, the spiral groove 10 is matched with the fixed nut 9, when the telescopic and bent length of the telescopic pipe 3 is fixed, the connecting rod 7 slides in the movable hole 8, then the fixed nut 9 is screwed to fix the position of the connecting rod 7 in the movable hole 8, and at this time, the telescopic and bent length of the telescopic pipe 3 is also fixed and limited, so as to avoid the shaking of the telescopic pipe 3 as a whole when the internal pressure of the pipe increases, thereby affecting the firmness of the connection between the telescopic pipe 3 and the first connecting pipe 1 and the second connecting pipe 2.

[0033] The connecting rod 7 is rotatably connected with a protection plate 11, the protection plate 11 is provided with an arc-shaped slot 12, the arc-shaped slot 12 is provided with a plurality of protrusions 13, each of the protrusions 13 contacts the outer surface of the telescopic pipe 3, when the telescopic pipe 3 is bent, the position of bending can be supported, avoiding that the telescopic pipe 3 is bent too much, so that the telescopic pipe 3 is bent, and the conveying of the telescopic pipe 3 to the concrete is affected; the arc-shaped slot 12 is matched with the telescopic pipe 3, and the material of the protrusions 13 in the arc-shaped slot 12 is rubber, which can contact the surface of the telescopic pipe 3 when the telescopic pipe 3 is bent, so as to support and buffer the bent telescopic pipe 3.

[0034] When the first connecting pipe 1 and the second connecting pipe 2 are installed and connected, first, the one connecting part 4 of the telescopic pipe 3 is aligned with the pipe opening of the first connecting pipe 1, then fixed by screw, at this time, the pipe opening of the second connecting pipe 2 is connected and fixed with the other connecting part 4 of the telescopic pipe 3, in this process, the other connecting part 4 of the telescopic pipe 3 is aligned with the pipe opening of the second connecting pipe 2 by bending the telescopic pipe 3, then fixed by screw, so as to complete the connection and installation operation between the first connecting pipe 1 and the second connecting pipe 2, and in this process, the first connecting pipe 1 or the second connecting pipe 2 does not need to be lifted for alignment, so as to perform the installation operation, only the telescopic pipe 3 needs to be bent to connect and fix the one connecting pipe of the telescopic pipe 3 with the pipe opening of the first connecting pipe 1 or the second connecting pipe 2, so as to speed up the installation time of the two, avoid wasting too much time, and avoid wasting too much time to cause the concrete in the first connecting pipe 1 to solidify and block;

[0035] In order to avoid that the bent telescopic pipe 3 is bent when conveying the concrete due to the pressure inside the pipe, the position of the bent telescopic pipe 3 is fixed, when the telescopic pipe 3 is bent, the connecting rod 7 rotatably connected to the first fixed plate 5 is rotated, at this time, the connecting rod 7 slides in the movable hole 8, when the position of bending is determined, the position of the connecting rod 7 in the movable hole 8 is also determined, the connecting rod 7 is fixed in the position of the movable hole 8 by screwing the fixing screw, and then the bending position of the telescopic pipe 3 is fixed;

[0036] In the process of bending the telescopic pipe 3, the protrusions 13 in the arc-shaped slot 12 contact the outer surface of the telescopic pipe 3, so as to support the outer surface of the telescopic pipe 3, avoiding that the telescopic pipe 3 is bent after bending.

[0037] The beneficial effects of the embodiment are that: through the telescopic pipe 3, the first connecting pipe 1 and the second connecting pipe 2 can be connected in an extendable and retractable manner, the first connecting pipe 1 or the second connecting pipe 2 does not need to be lifted and installed in alignment, and only the telescopic pipe 3 needs to be bent to complete the connection operation, thereby saving the installation time and avoiding the solidification and blockage of the concrete in the pipe; and through the fixing mechanism, the telescopic length of the telescopic pipe can be fixed, so that the shaking of the telescopic pipe as a whole is avoided when the internal pressure of the pipe increases, thereby affecting the firmness of the fixing between the telescopic pipe and the first connecting pipe and the second connecting pipe.

[0038] The arch bridge concrete pouring device provided by the embodiment comprises the concrete pouring joint mechanism, further comprises a pump body (not shown in the figure), the first connecting pipe is communicated with the pump body, and the second connecting pipe is communicated through a pouring pipe (not shown in the figure). Through starting the pump body, the concrete is extracted and transported through the first connecting pipe and the second connecting pipe, so as to be sprayed out of the pouring pipe and covered in the formwork, thereby being formed.

[0039] The above only describes some exemplary embodiments of the utility model in a manner of illustration, and it is needless to say that the described embodiments can be modified in various manners without departing from the spirit and scope of the utility model for ordinary skilled persons in the art. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the protection scope of the utility model claims.

Claims

1. Concrete pouring joint mechanism comprising a first connecting pipe and a second connecting pipe, characterized in that, The telescopic mechanism comprises a telescopic pipe and two connecting portions arranged at two ends of the telescopic pipe, the two connecting portions are connected to the first connecting pipe and the second connecting pipe respectively, and a fixing mechanism is arranged on the telescopic mechanism and used for fixing the telescopic length of the telescopic pipe.

2. Concrete placement joint mechanism according to claim 1, characterized in that The telescopic pipe comprises two oppositely arranged connecting portions, one connecting portion is connected to the first connecting pipe through a screw, and the other connecting portion is connected to the second connecting pipe through a screw.

3. The concrete pour joint mechanism of claim 1, wherein, The first connecting pipe, the telescopic pipe and the second connecting pipe are in a communication state, so that the concrete can be normally conveyed.

4. The concrete pour joint mechanism of claim 1, wherein, The fixing mechanism comprises a first fixing plate and a second fixing plate, one side of the first fixing plate is rotationally connected with a connecting rod, an active hole is arranged on the second fixing plate, one end of the connecting rod penetrates through the active hole and extends to the outside of the active hole, and a fixing nut is threadedly connected to the end of the connecting rod extending to the outside of the active hole.

5. A concrete pour joint mechanism according to claim 4, wherein, The fixing nut abuts against the second fixing plate.

6. A concrete pour joint mechanism according to claim 4, wherein, A spiral groove is arranged on the outer surface of the connecting rod, and the spiral groove is matched with the fixing nut.

7. The concrete pour joint mechanism of claim 4, wherein, A protection plate is rotationally connected to the connecting rod, an arc-shaped groove is arranged on the protection plate, a plurality of protrusions are arranged on the arc-shaped groove, and the protrusions contact the outer surface of the telescopic pipe.

8. A concrete pour joint mechanism according to claim 7, wherein, The arc-shaped groove is matched with the telescopic pipe, and the plurality of protrusions are used for supporting the curved state of the telescopic pipe.

9. A concrete pour joint mechanism according to claim 8, wherein, The material of the protrusions is rubber.

10. A concrete pouring device for an arch bridge, comprising the concrete pouring joint mechanism according to any one of claims 1 to 9, characterized in that, A pump body is further arranged, the first connecting pipe is communicated with the pump body, and the second connecting pipe is communicated through a pouring pipe.

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