Sealing cover for bridge prestressed duct grouting

Abstract

The utility model discloses a sealing cover for bridge prestressed duct grouting, and relates to the technical field of sealing covers. The prestressed pipe connecting device comprises a connecting plate, a sealing mechanism is fixedly arranged on the upper surface of the connecting plate, a prestressed pipe is arranged below the connecting plate, a clamping mechanism is fixedly arranged on the lower surface of the connecting plate, the outer side of the clamping mechanism is connected with the inner side of the prestressed pipe in a clamping mode, and the clamping mechanism comprises a limiting rod. The upper end of the limiting rod is fixedly connected with the lower surface of the connecting plate, a reset spring is arranged on the outer side of the limiting rod in a sleeving mode, a reset plate is arranged on the outer side of the limiting rod in a sliding mode, and a plurality of arc-shaped plates distributed in an annular mode are fixedly arranged on the lower surface of the connecting plate. Stable clamping connection between the sealing cover and the prestressed pipe is achieved, installation convenience and stability of the sealing cover are guaranteed, and efficiency and sealing performance of bridge prestressed duct grouting operation are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sealing cover, concretely to a sealing cover for bridge prestressed duct grouting. BACKGROUND

[0002] The sealing cover for bridge prestressed duct grouting is suitable for ensuring the sealing property of the duct, preventing the slurry from leaking out, improving the grouting efficiency and quality when the prestressed duct is grouted during the bridge construction or maintenance, especially in the scene where the grouting range needs to be accurately controlled and the internal pressure of the duct needs to be stabilized.

[0003] However, the prior art still has the following problems:

[0004] In the existing bridge prestressed duct grouting operation, the sealing cover and the prestressed pipe are not firmly connected, are complex to install and are not easy to disassemble, and most connection methods may cause the sealing to be not strict, resulting in slurry leakage, affecting the grouting quality and the safety of the bridge structure, and the difficulty in disassembly increases the construction time and cost.

[0005] To solve the above problems, the inventors provide a sealing cover for bridge prestressed duct grouting. SUMMARY

[0006] To solve the problems of not firm connection, complex installation and not easy disassembly, the purpose of the utility model is to provide a sealing cover for bridge prestressed duct grouting.

[0007] To solve the above technical problems, the utility model adopts the following technical scheme: a sealing cover for bridge prestressed duct grouting, comprising a connecting plate, a sealing mechanism is fixedly arranged on the upper surface of the connecting plate, a prestressed pipe is arranged below the connecting plate, a clamping mechanism is fixedly arranged on the lower surface of the connecting plate, the outer side of the clamping mechanism is clamped and connected with the inner side of the prestressed pipe, the clamping mechanism comprises a limiting rod, the upper end of the limiting rod is fixedly connected with the lower surface of the connecting plate, a return spring is sleeved on the outer side of the limiting rod, a return plate is slidably arranged on the outer side of the limiting rod, a plurality of arc-shaped plates are fixedly arranged on the lower surface of the connecting plate in a ring shape, the inner side of the arc-shaped plate is slidably attached to the outer side of the return plate, a clamping groove is formed on the outer side of the arc-shaped plate, and the clamping groove is clamped and connected with the inner side of the prestressed pipe.

[0008] Preferably, the sealing mechanism comprises a sealing cover cloth, the inner upper wall of the sealing cover cloth is fixedly connected with the upper surface of the connecting plate, a rope ring is fixedly arranged on the outer side of the sealing cover cloth, and a fastening rope is arranged on the inner side of the rope ring.

[0009] Compared with the prior art, the utility model has the beneficial effects that:

[0010] The utility model discloses a carding mechanism, realized the stable carding connection between the sealing cover and prestressed pipe, both ensured the installation convenience and stability of sealing cover, and also convenient to dismount and reuse, effectively promoted the efficiency and sealing performance of bridge prestressed hole channel pressure grouting operation. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will to the embodiment or prior art description needed to use the drawing briefly introduce, obviously, below description's drawing only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0012] Figure 1 It is the structural schematic diagram of the utility model.

[0013] Figure 2 It is the structural explosion schematic diagram of the utility model.

[0014] Figure 3 It is the carding mechanism structure section view schematic diagram of the utility model.

[0015] Figure 4 It is the sealing mechanism structure schematic diagram of the utility model.

[0016] In the drawing: 1, connecting plate;2, carding mechanism;3, sealing mechanism;4, prestressed pipe;20, arc plate;21, carding groove;22, carding ring;23, limit rod;24, reset spring;25, reset plate;26, limit plate;30, sealing cover cloth;31, rope hole;32, lashing ring;33, fastening lashing;34, rope end. DETAILED DESCRIPTION

[0017] Below will combine the drawing in the embodiment of the utility model, the technical scheme in the embodiment of the utility model is clearly and completely described, obviously, the described embodiment only is a part of the embodiment of the utility model, instead of all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skilled person in the art without making creative labor belong to the scope of the utility model protection.

[0018] Embodiment: as Figures 1-4The utility model provides a kind of sealing cover for bridge prestress hole channel pressure grouting, including connecting plate 1, the upper surface of connecting plate 1 is fixedly provided with sealing mechanism 3, the lower of connecting plate 1 is equipped with prestress pipe 4, the lower surface of connecting plate 1 is fixedly provided with engagement mechanism 2, the outside of engagement mechanism 2 is engaged with the inside of prestress pipe 4, engagement mechanism 2 includes limit rod 23, the upper end of limit rod 23 is fixedly connected with the lower surface of connecting plate 1, reset spring 24 is sleeved on the outside of limit rod 23, reset plate 25 is slidably arranged on the outside of limit rod 23, the lower surface of connecting plate 1 is fixedly provided with multiple annularly distributed arc plates 20, the inside of arc plate 20 is slidably attached with the outside of reset plate 25, clamping groove 21 is set on the outside of arc plate 20, clamping groove 21 is engaged with the inside of prestress pipe 4, in bridge prestress hole channel pressure grouting operation, by engagement mechanism 2, first, the engagement mechanism 2 of connecting plate 1 lower surface is aimed at the entrance of prestress pipe 4, limit rod 23 and its lower end limit plate 26 play the role of orientation and limiting at this time, with gradually in-depth of sealing cover, reset plate 25 is guided under the arc plate 20 and slides upwards along limit rod 23, and reset spring 24 is compressed, when the clamping groove 21 of arc plate 20 outside is aligned with the clamping ring 22 of prestress pipe 4 inside, reset spring 24 releases energy, and pushes reset plate 25 and arc plate 20 to expand outward, so that clamping groove 21 is tightly attached clamping ring 22, to realize the stable engagement connection of sealing cover and prestress pipe 4, since arc plate 20 is elastic plate, can adapt to prestress pipe 4 of different sizes, further enhance the stability and sealing property of connection.

[0019] The lower end of limit rod 23 is fixedly provided with limit plate 26, arc plate 20 is elastic plate, the inside of prestress pipe 4 is fixedly provided with clamping ring 22, the outside of clamping ring 22 is attached with clamping groove 21, reset plate 25 and arc plate 20 can expand outward so that clamping groove 21 is tightly attached clamping ring 22, to realize the stable engagement connection of sealing cover and prestress pipe 4, since arc plate 20 is elastic plate, can adapt to prestress pipe 4 of different sizes, further enhance the stability and sealing property of connection.

[0020] The sealing mechanism 3 comprises a sealing cover cloth 30, the upper inner wall of the sealing cover cloth 30 is fixedly connected with the upper surface of the connecting plate 1, the outer side of the sealing cover cloth 30 is fixedly provided with a lashing ring 32, the inner side of the lashing ring 32 is provided with a fastening lashing rope 33, through the sealing mechanism 3, after the sealing cover is installed on the prestressed pipe 4, the sealing cover cloth 30 covers the upper surface of the connecting plate 1, the lashing ring 32 and the fastening lashing rope 33 on the outer side play a further sealing role, the lashing ring 32 is a rubber ring, has good elasticity and sealing performance, the rope hole 31 on the lashing ring 32 is matched with the fastening lashing rope 33, by pulling the two end ropes 34 of the fastening lashing rope 33 and knotting, the lashing ring 32 can be tightly pressed on the outer side of the prestressed pipe 4, forming an additional sealing barrier, in this way, even in the high-pressure grouting operation, the slurry is also difficult to penetrate the sealing mechanism 3, ensuring the smooth progress of the grouting operation and the safety of the bridge structure.

[0021] The upper surface of the lashing ring 32 is provided with a plurality of ring-shaped distributed rope holes 31, the rope holes 31 are matched with the fastening lashing rope 33, the two ends of the fastening lashing rope 33 are fixedly provided with end ropes 34, the lashing ring 32 is a rubber ring, the lashing ring 32 is a rubber ring, has good elasticity and sealing performance, the rope hole 31 on the lashing ring 32 is matched with the fastening lashing rope 33, by pulling the two end ropes 34 of the fastening lashing rope 33.

[0022] Working principle: in the bridge prestressed hole grouting operation, through the clamping mechanism 2, firstly, the clamping mechanism 2 on the lower surface of the connecting plate 1 is aligned with the inlet of the prestressed pipe 4, at this time, the limiting rod 23 and the limiting plate 26 at the lower end thereof play a guiding and limiting role, with the gradual deepening of the sealing cover, the reset plate 25 slides upwards along the limiting rod 23 under the guidance of the arc-shaped plate 20, and compresses the reset spring 24, when the clamping groove 21 on the outer side of the arc-shaped plate 20 is aligned with the clamping ring 22 on the inner side of the prestressed pipe 4, the reset spring 24 releases energy, pushes the reset plate 25 and the arc-shaped plate 20 to expand outward, so that the clamping groove 21 is tightly matched with the clamping ring 22, thereby realizing the stable clamping connection of the sealing cover and the prestressed pipe 4, since the arc-shaped plate 20 is an elastic plate, it can adapt to prestressed pipes 4 of different sizes, further enhancing the stability and sealing performance of the connection.

[0023] Through the sealing mechanism 3, after the sealing cover is installed on the prestressed pipe 4, the sealing cover cloth 30 covers the upper surface of the connecting plate 1, the lashing ring 32 and the fastening lashing rope 33 on the outer side play a further sealing role, the lashing ring 32 is a rubber ring, has good elasticity and sealing performance, the rope hole 31 on the lashing ring 32 is matched with the fastening lashing rope 33, by pulling the two end ropes 34 of the fastening lashing rope 33 and knotting, the lashing ring 32 can be tightly pressed on the outer side of the prestressed pipe 4, forming an additional sealing barrier, in this way, even in the high-pressure grouting operation, the slurry is also difficult to penetrate the sealing mechanism 3, ensuring the smooth progress of the grouting operation and the safety of the bridge structure.

[0024] It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application cover modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

Claims

1. A sealing cap for bridge prestressed duct grouting, comprising a connecting plate (1), characterized in that: The upper surface of the connecting plate (1) is fixedly provided with a sealing mechanism (3), the lower surface of the connecting plate (1) is fixedly provided with a prestressed pipe (4), and the lower surface of the connecting plate (1) is fixedly provided with an engaging mechanism (2), and the outer side of the engaging mechanism (2) is engaged with the inner side of the prestressed pipe (4); The engaging mechanism (2) comprises a limiting rod (23), the upper end of the limiting rod (23) is fixedly connected with the lower surface of the connecting plate (1), the outer side of the limiting rod (23) is sleeved with a reset spring (24), the outer side of the limiting rod (23) is slidably provided with a reset plate (25), the lower surface of the connecting plate (1) is fixedly provided with a plurality of arc-shaped plates (20) distributed in a ring shape, the inner side of the arc-shaped plate (20) is slidably attached to the outer side of the reset plate (25), and the outer side of the arc-shaped plate (20) is provided with an engaging groove (21), and the engaging groove (21) is engaged with the inner side of the prestressed pipe (4).

2. A sealing cap for bridge prestressed ducts for the injection of grout according to claim 1, characterized in that, The sealing mechanism (3) comprises a sealing cover cloth (30), the upper inner wall of the sealing cover cloth (30) is fixedly connected with the upper surface of the connecting plate (1), and the outer side of the sealing cover cloth (30) is fixedly provided with a rope ring (32).

3. A sealing cap for bridge prestressed ducts, according to claim 1, characterized in that, The lower end of the limiting rod (23) is fixedly provided with a limiting plate (26).

4. A sealing cap for bridge prestressed ducts, according to claim 1, characterized in that, The arc-shaped plate (20) is an elastic plate.

5. A sealing cap for bridge prestressed ducts, according to claim 1, characterized in that, The inner side of the prestressed pipe (4) is fixedly provided with an engaging ring (22), and the outer side of the engaging ring (22) is attached to the engaging groove (21).

6. A sealing cap for bridge prestressed ducts for the injection of grout according to claim 2, characterized in that, The upper surface of the rope ring (32) is provided with a plurality of rope holes (31) distributed in a ring shape, and the rope holes (31) are attached to the fastening rope (33).

7. A sealing cap for bridge pre-stressing ducts for pressure grouting according to claim 2, characterized in that, The two ends of the fastening rope (33) are fixedly provided with rope ends (34).

8. A sealing cap for bridge prestressing ducts for the injection of grout according to claim 2, characterized in that, The rope ring (32) is a rubber ring.

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