Bridge prestressed pipeline grouting device

Abstract

The utility model relates to the technical field of prestressed pipeline mud jacking, in particular to a bridge prestressed pipeline mud jacking device which comprises a beam body, a prestressed pipe is arranged in the beam body, an anchor plate is arranged at the end, close to the prestressed pipe, of the beam body, and a mud jacking hole and a mud outlet hole are formed in the side face of the anchor plate respectively. A first control valve is arranged in the slurry outlet hole, and a slurry jacking pipe is arranged in the slurry jacking hole. The grouting device has the advantages that the grouting pipe, the sealing cover, the hollow conical base, the damping sleeve and the pressing ring are arranged, meanwhile, the grouting extension pipe penetrates through the hollow conical base, the damping sleeve, the pressing ring and the grouting pipe and enters the downward concave position in the prestressed pipe, the second control valve is arranged in the middle of the grouting pipe, and then the grouting device is communicated with an external grouting device; and therefore, synchronous mud jacking from the downward concave position of the prestressed pipe to the two ends is facilitated, the uniformity and compactness of mud jacking are improved, and the problems existing in the prior art are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of prestressed pipeline grouting, in particular to a bridge prestressed pipeline grouting device. Background Art

[0002] In order to strengthen the process control of bridge construction quality and eliminate quality defects in the construction process, the grouting quality inspection of prestressed pipes (corrugated pipes) of prestressed bridges is an important control link to ensure that the quality of bridge construction meets the design requirements and reasonable stress state. The steel strands of prestressed bridges should give full play to the design effect and offset the pressure of vehicles and pedestrians on the bridge deck. The grouting quality effect of prestressed pipes is one of the most important factors.

[0003] Traditional prestressed pipe grouting generally adopts a unidirectional grouting method. Since part of the prestressed pipe will bend downward in the middle of the beam body, the air in the downward inclined position of the corrugated pipe will adhere to its inner wall during grouting, which will affect the grouting effect. As a result, the cement slurry fails to completely wrap the prestressed steel strands, and part of the steel strands are exposed to the air and rust, which affects the service life of the steel strands. Based on this, a bridge prestressed pipe grouting device is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a bridge prestressed pipe grouting device, which effectively solves the deficiencies of the prior art.

[0005] In order to achieve the above-mentioned purpose, an embodiment of the utility model on one hand provides a grouting device for prestressed pipes of a bridge, comprising a beam body, a prestressed pipe is arranged inside the beam body, an anchor plate is arranged at the end of the beam body close to the prestressed pipe, a grouting hole and a grouting hole are respectively opened on the sides of the anchor plate, a first control valve is arranged inside the grouting hole, a grouting pipe is arranged inside the grouting hole, one end of which has a stepped shape, a closing cover is arranged at the end of the grouting pipe away from the anchor plate, a second control valve is installed in the middle of the side of the grouting pipe, a hollow conical seat is arranged in the middle of the inner wall of the grouting pipe, and a damping sleeve is arranged inside the seat, a grouting extension pipe is arranged inside the damping sleeve, the grouting extension pipe passes through the grouting pipe and enters into the recessed position of the prestressed pipe, and a clamping ring is threadedly connected to the outer wall of the hollow conical seat.

[0006] Preferably, in any of the above schemes, the inner diameter of the grouting hole is larger than the inner diameter of the slurry outlet hole, and the grouting hole is located at the bottom of the slurry outlet hole. The inner diameter of the grouting hole in this scheme is larger, so that the smaller end of the grouting pipe can completely enter the interior of the grouting hole, and at the same time provide a placement position for the grouting extension pipe, so that the user can insert the grouting extension pipe along the grouting pipe into the interior of the prestressed pipe.

[0007] Preferably, any of the above schemes is that one end of the closing cover is fixedly connected to the larger end face of the grouting pipe by bolts, and a sealing gasket is provided between the closing cover and the end face of the grouting pipe. By using this scheme, it is convenient to install the closing cover at the end position of the grouting pipe. At the same time, the added sealing gasket facilitates to increase the sealing between the two to prevent liquid leakage.

[0008] Preferably, any of the above schemes is that the outer cylindrical surface of the hollow conical seat is provided with a thread, and the interior of the hollow conical seat is conical, which cooperates with the outer wall of the damping sleeve. The hollow conical seat in this scheme is convenient for providing an installation position for the clamping ring, and the conical structure inside the hollow conical seat is convenient for cooperating with the damping sleeve. Under the extrusion action of the clamping ring, the damping sleeve is convenient for being deformed, thereby locking the pressure drop extension tube in position.

[0009] Preferably, any of the above schemes has four deformation grooves on the outer wall of the damping sleeve, and the end of the damping sleeve away from the prestressed tube is in contact with the inner wall of the clamping ring. By using this scheme, the damping sleeve can slide along the inside of the hollow conical seat to a certain extent, so that the damping sleeve deforms and shrinks, and the grouting extension tube is locked.

[0010] Preferably, any of the above schemes is that a supporting sleeve is provided at one end of the grouting extension tube close to the inner wall of the closing cover, and the outer shape of the supporting sleeve close to the end of the closing cover is stepped. By using this scheme, it is convenient to install the supporting sleeve inside the grouting extension tube, thereby supporting the grouting extension tube and avoiding damage to the grouting extension tube due to excessive deformation of the damping sleeve.

[0011] The utility model has the following advantages:

[0012] 1. The bridge prestressed pipe grouting device is through a grouting pipe, a closing cover, a hollow conical seat, a damping sleeve and a clamping ring. At the same time, a grouting extension pipe passes through the hollow conical seat, the damping sleeve, the clamping ring and the grouting pipe, and enters into a recessed position inside the prestressed pipe. A second control valve is provided in the middle of the grouting pipe, which is connected with an external grouting equipment, so as to facilitate synchronous grouting from the recessed position of the prestressed pipe to both ends, so as to facilitate improving the uniformity and density of grouting, thereby effectively solving the problems existing in the prior art.

[0013] 2. The prestressed pipe grouting device of the bridge is provided with a hollow conical seat, a damping sleeve, a clamping ring and a supporting sleeve. The clamping ring is threadedly connected to the hollow conical seat, and the damping sleeve is located inside the hollow conical seat. Then, by rotating the clamping ring, pressure is applied to the damping sleeve to deform the damping sleeve, which is convenient for applying pressure to the grouting extension pipe, stabilizing the position of the grouting extension pipe and ensuring the smooth progress of grouting. The supporting sleeve is convenient for supporting the inside of the grouting extension pipe to avoid deformation and damage of the grouting extension pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0016] Figure 3 It is a schematic diagram of the cutaway structure of the utility model as a whole;

[0017] Figure 4 This is a schematic diagram of the anchor plate structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the grouting pipe structure of the utility model;

[0019] Figure 6 It is a schematic diagram of the partial cutaway structure of the grouting pipe of the utility model;

[0020] Figure 7 It is a schematic diagram of the explosion structure of the clamping ring and the damping sleeve of the utility model;

[0021] Figure 8 It is a structural schematic diagram of the clamping ring of the utility model.

[0022] In the figure: 1-beam body, 2-anchor plate, 3-first control valve, 4-closing cover, 5-grouting pipe, 6-second control valve, 7-prestressed pipe, 8-grouting extension pipe, 9-clamping ring, 10-support sleeve, 11-hollow conical seat, 12-damping sleeve, 13-deformation groove, 14-slurry outlet hole, 15-grouting hole, 16-sealing pad. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0024] like Figures 1 to 8 As shown, a prestressed pipe grouting device for a bridge comprises a beam body 1, a prestressed pipe 7 is arranged inside the beam body 1, an anchor plate 2 is arranged at the end of the beam body 1 close to the prestressed pipe 7, grouting holes 15 and grouting holes 14 are respectively opened on the sides of the anchor plate 2, a first control valve 3 is arranged inside the grouting hole 15, a grouting pipe 5 is arranged inside the grouting hole 15, one end of which has a stepped shape, a closing cover 4 is arranged at the end of the grouting pipe 5 away from the anchor plate 2, a second control valve 6 is installed in the middle of the side of the grouting pipe 5, a hollow conical seat 11 is arranged in the middle of the inner wall of the grouting pipe 5, and a damping sleeve 12 is arranged inside the grouting sleeve 12, a grouting extension pipe 8 is arranged inside the damping sleeve 12, the grouting extension pipe 8 passes through the grouting pipe 5 and enters into the concave position of the prestressed pipe 7, and a clamping ring 9 is threadedly connected to the outer wall of the hollow conical seat 11.

[0025] The inner diameter of the grouting hole 15 is larger than the inner diameter of the grouting hole 14, and the grouting hole 15 is located at the bottom of the grouting hole 14. As an optional technical solution of the present invention, the inner diameter of the grouting hole 15 is larger, so that the smaller end of the grouting pipe 5 can completely enter the interior of the grouting hole 15, and at the same time provide a placement position for the grouting extension pipe 8, so that the user can insert the grouting extension pipe 8 along the grouting pipe 5 into the interior of the prestressed pipe 7.

[0026] One end of the closing cover 4 is fixedly connected to the larger end face of the grouting pipe 5 by bolts, and a sealing gasket 16 is arranged between the closing cover 4 and the end face of the grouting pipe 5 as an optional technical solution of the utility model. This makes it easy to install the closing cover 4 at the end position of the grouting pipe 5. At the same time, the added sealing gasket 16 facilitates to increase the sealing between the two to prevent liquid leakage.

[0027] The outer cylindrical surface of the hollow conical seat 11 is provided with threads, and the interior of the hollow conical seat 11 is conical, which cooperates with the outer wall of the damping sleeve 12. As an optional technical solution of the utility model, the hollow conical seat 11 is convenient for providing an installation position for the clamping ring 9, and the conical structure inside the hollow conical seat 11 is convenient for cooperating with the damping sleeve 12. Under the extrusion action of the clamping ring 9, the damping sleeve 12 is convenient for being deformed, thereby locking the pressure drop extension tube 8 in position.

[0028] Four deformation grooves 13 are provided on the outer wall of the damping sleeve 12, and the end of the damping sleeve 12 away from the prestressed pipe 7 is in contact with the inner wall of the clamping ring 9. As an optional technical solution of the utility model, this makes it easier for the damping sleeve 12 to slide along the inside of the hollow conical seat 11, so that the damping sleeve 12 deforms and shrinks, and the grouting extension pipe 8 is locked.

[0029] A support sleeve 10 is provided at one end of the grouting extension pipe 8 close to the inner wall of the closing cover 4. The shape of the support sleeve 10 close to the closing cover 4 is stepped. As an optional technical solution of the utility model, this facilitates the installation of the support sleeve 10 inside the grouting extension pipe 8, thereby supporting the grouting extension pipe 8 and avoiding excessive deformation of the damping sleeve 12, which may cause damage to the grouting extension pipe 8.

[0030] The following steps are required when using the bridge prestressed pipe grouting device:

[0031] 1) When in use, the grouting pipe 5 and the first control valve 3 are installed inside the grouting hole 15 and the grouting hole 14 respectively;

[0032] 2) inserting the grouting extension pipe 8 along the grouting pipe 5 into the interior of the prestressed pipe 7;

[0033] 3) Install the damping sleeve 12 inside the grouting extension pipe 8 and gradually slide it into the hollow conical seat 11;

[0034] 4) Install the support sleeve 10 at the end of the grouting extension pipe 8, then rotate the clamping ring 9 to compress the damping sleeve 12 and lock the grouting extension pipe 8;

[0035] 5) Install the closing cover 4 and the second control valve 6 , the second control valve 6 is connected to the external grouting equipment through a pipeline, and performs bidirectional grouting on the interior of the prestressed pipe 7 .

[0036] In summary, when the user uses it, the grouting pipe 5, the closing cover 4, the hollow conical seat 11, the damping sleeve 12 and the clamping ring 9 are passed through, and the grouting extension pipe 8 passes through the hollow conical seat 11, the damping sleeve 12, the clamping ring 9 and the grouting pipe 5, and enters the concave position inside the prestressed pipe 7, and the middle part of the grouting pipe 5 is provided with a second control valve 6, which is connected with the external grouting equipment, so as to facilitate the synchronous grouting from the concave position of the prestressed pipe 7 to both ends, so as to facilitate the improvement of the uniformity and density of the grouting, thereby effectively solving the problems existing in the prior art. In order to solve the problem, a hollow conical seat 11, a damping sleeve 12, a clamping ring 9 and a supporting sleeve 10 are arranged. The clamping ring 9 is threadedly connected to the hollow conical seat 11, and the damping sleeve 12 is located inside the hollow conical seat 11. Then, by rotating the clamping ring 9, pressure is applied to the damping sleeve 12 to deform the damping sleeve 12, thereby applying pressure to the grouting extension pipe 8, stabilizing the position of the grouting extension pipe 8 and ensuring the smooth progress of grouting. The supporting sleeve 10 is convenient for supporting the inside of the grouting extension pipe 8 to avoid deformation and damage of the grouting extension pipe 8.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge prestressed pipe grouting device, characterized in that: The invention comprises a beam body (1), wherein a prestressed pipe (7) is arranged inside the beam body (1), an anchor plate (2) is arranged at the end of the beam body (1) close to the prestressed pipe (7), a grouting hole (15) and a grouting hole (14) are respectively opened on the side of the anchor plate (2), a first control valve (3) is arranged inside the grouting hole (14), a grouting pipe (5) is arranged inside the grouting hole (15), one end of which is in a stepped shape, and one end of the grouting pipe (5) is away from the anchor plate (2). A closing cover (4) is provided at the end, a second control valve (6) is installed in the middle of the side of the grouting pipe (5), a hollow conical seat (11) is provided in the middle of the inner wall of the grouting pipe (5), and a damping sleeve (12) is provided inside the seat, a grouting extension pipe (8) is provided inside the damping sleeve (12), the grouting extension pipe (8) passes through the grouting pipe (5) and enters into the concave position of the prestressed pipe (7), and a clamping ring (9) is threadedly connected to the outer wall of the hollow conical seat (11).

2. A bridge prestressed pipe grouting device according to claim 1, characterized in that: The inner diameter of the grouting hole (15) is greater than the inner diameter of the grouting hole (14), and the grouting hole (15) is located at the bottom of the grouting hole (14).

3. A bridge prestressed pipe grouting device according to claim 2, characterized in that: One end of the closing cover (4) is fixedly connected to the larger end face of the grouting pipe (5) via bolts, and a sealing gasket (16) is provided between the closing cover (4) and the end face of the grouting pipe (5).

4. A bridge prestressed pipe grouting device according to claim 3, characterized in that: The outer circumferential surface of the hollow conical seat (11) is provided with threads, and the interior of the hollow conical seat (11) is conical and matches with the outer wall of the damping sleeve (12).

5. A bridge prestressed pipe grouting device according to claim 4, characterized in that: The outer wall of the damping sleeve (12) is provided with four deformation grooves (13), and one end of the damping sleeve (12) away from the prestressed tube (7) is in contact with the inner wall of the clamping ring (9).

6. A bridge prestressed pipe grouting device according to claim 5, characterized in that: A support sleeve (10) is provided at one end of the grouting extension pipe (8) close to the inner wall of the closing cover (4); the outer shape of the support sleeve (10) close to the end of the closing cover (4) is stepped.

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