Prefabricated part grouting hole positioning device

Abstract

The utility model discloses a prefabricated part grouting hole positioning device which comprises a rubber cover, a bolt is arranged in the center of the top face of the rubber cover, a nut matched with the bolt is arranged on the bolt, a transition cover is further arranged between the nut and the rubber cover, and the diameter of the transition cover is larger than the hole diameter of an inner formwork. The corrugated pipe of the exposed component does not need to be cut any more, material waste is reduced, and meanwhile production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of prefabricated component casting, in particular to a grouting hole positioning device for a prefabricated component. Background Art

[0002] When making prefabricated components for many bridges or other buildings, it is generally necessary to set up a corrugated tube in the template to facilitate the connection or threading of two components in the future. A round hole is opened on the inner template for the corrugated tube to pass through, so that during pouring, mud can be effectively prevented from pouring into the corrugated tube and blocking the corrugated tube. After pouring, the corrugated tube exposed from the component needs to be cut off. This method not only causes a waste of corrugated tubes, but also is not conducive to improving production efficiency. Summary of the invention

[0003] In order to solve the above problems, the technical solution of the utility model is: a prefabricated component grouting hole positioning device, which comprises a rubber cover, a bolt is arranged at the center position of the top surface of the rubber cover, a nut matching with the bolt is arranged on the bolt, and a transition cover is also arranged between the nut and the rubber cover, and the diameter of the transition cover is larger than the hole diameter on the inner template.

[0004] In order to better fix the positioning device on the inner template, the transition cover is provided with a boss along the circumferential direction, the bottom surface of the boss contacts the upper surface of the inner template, and the side surface of the transition cover below the boss contacts the side wall of the inner template.

[0005] In order to facilitate the rubber cover to seal the bellows, the cross section of the rubber cover is an isosceles trapezoidal structure that is longer at the top and shorter at the bottom.

[0006] The beneficial effect of the utility model is that the utility model no longer requires a longer corrugated pipe, and the pre-buried corrugated pipe can be cut into a designed length, and then sealed with a rubber cover to allow mud to enter. After the pouring is completed, the inner template is removed and the positioning device is removed at the same time. The operation is simple, and there is no need to cut the corrugated pipe to expose the component, which reduces material waste and also improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a structural schematic diagram of the utility model.

[0008] In the figure: rubber cover 1, boss 2, nut 3, transition cover 4, inner template 5, bolt 6. DETAILED DESCRIPTION

[0009] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0010] exist Figure 1A grouting hole positioning device for a prefabricated component is provided, which comprises a rubber cover 1, a bolt 6 is arranged at the center position of the top surface of the rubber cover 1, a nut 3 matching with the bolt 6 is arranged on the bolt 6, and a transition cover 4 is also arranged between the nut 3 and the rubber cover 1, and the diameter of the transition cover 4 is larger than the hole diameter on the inner template 5.

[0011] Furthermore, the transition cover 4 is provided with a boss 2 along the circumferential direction, the bottom surface of the boss 2 contacts the upper surface of the inner template 5 , and the side surface of the transition cover 4 below the boss 2 contacts the side wall of the inner template 5 .

[0012] Furthermore, the cross section of the rubber cover 1 is an isosceles trapezoidal structure that is longer at the top and shorter at the bottom.

[0013] During operation, a hole is provided on the inner template 5, and the cut bellows is located directly below the hole. The rubber cover 1 of the positioning device is inserted into the bellows through the hole, and then the rubber cover 1 is further pressed downward by the cooperation of the bolt 6 and the nut 3, so that it can seal the bellows more tightly, and then pouring can be started. After pouring is completed, loosen the nut 3, push the rubber cover 1 upward through the stud 6, and then remove the inner template 5. At this time, the positioning device is still on the inner template 5 for the next use. When the device needs to be replaced and repaired, the nut 3 and the transition cover 4 can be removed, and then the rubber cover can be removed. The rubber cover 1 can also be forced to pass through the hole on the inner template 5.

[0014] In the description of the present invention, it should be understood that the terms "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present invention.

[0015] 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 grouting hole positioning device for a prefabricated component, comprising a rubber cover (1), characterized in that: A bolt (6) is arranged at the center of the top surface of the rubber cover (1), a nut (3) matching with the bolt (6) is arranged on the bolt (6), and a transition cover (4) is arranged between the nut (3) and the rubber cover (1), the diameter of the transition cover (4) being larger than the hole diameter on the inner template (5).

2. A grouting hole positioning device for a prefabricated component according to claim 1, characterized in that: The transition cover (4) is provided with a boss (2) along the circumferential direction, the bottom surface of the boss (2) contacts the upper surface of the inner template (5), and the side surface of the transition cover (4) located below the boss (2) contacts the side wall of the inner template (5).

3. A grouting hole positioning device for a prefabricated component according to claim 1, characterized in that: The cross section of the rubber cover (1) is an isosceles trapezoidal structure that is longer at the top and shorter at the bottom.

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