CN220185123U - Tunnel roof arch concrete placement hole packer - Google Patents

Abstract

The utility model discloses a tunnel top arch concrete pouring hole packer which comprises an upper thick-wall steel pipe in threaded connection with a top arch lining trolley preformed hole, a lower thick-wall steel pipe in hoop connection with a concrete conveying pump pipe, an upper square connecting flange end plate and a lower square connecting flange end plate, wherein a square backing plate is arranged between the upper square connecting flange end plate and the lower square connecting flange end plate, a pair of slender guide rails are arranged on the square backing plate, a slender gate valve capable of sliding along the guide rails is inserted between the guide rails, a through hole with the same inner diameter as the upper thick-wall steel pipe is formed in one end of the gate valve, and the upper thick-wall steel pipe is controlled to be communicated with the lower thick-wall steel pipe through the through hole in the square backing plate of the gate valve sliding switch along the guide rails. After the concrete pouring of the tunnel top arch is completed, the gate valve is closed timely and quickly, so that the loss of the stored concrete of the top arch can be prevented, a cavity is generated, the concrete pouring quality of the tunnel top arch is effectively ensured, and the concrete is smooth outside and solid inside; and the operation is simple and convenient, and the turnover can be repeated.

Description

Tunnel roof arch concrete placement hole packer

Technical Field

The utility model belongs to the technical field of water conservancy and hydropower civil engineering, and particularly relates to a tunnel roof arch concrete pouring hole packer.

Background

When the hydraulic and hydroelectric engineering underground tunnel lining trolley top arch is poured, a concrete conveying pump pipe is required to be firmly connected with the lining trolley, and meanwhile, hole sealing can be timely and quickly carried out after pouring is completed, so that the top arch concrete pouring is ensured to be full, and after the lining trolley is demoulded, the concrete appearance is smooth and smooth, so that the device for plugging the concrete pouring holes of the tunnel top arch is required to be studied.

When traditional hydraulic engineering tunnel roof arch concrete placement, tunnel roof arch lining platform truck pouring holes all pass through the manual work, and the filler shutoff leads to the fact the concreting to run off in this scheme operation process, leads to tunnel roof arch structure concrete to produce the cavity, pours not full, seriously influences hydraulic engineering tunnel use function, and influences appearance quality.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the tunnel roof arch concrete pouring hole packer, which is used for timely and quickly sealing holes after the tunnel roof arch concrete pouring and pouring are completed.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a tunnel roof arch concrete placement hole packer, include with the upper thick wall steel pipe that arch lining platform truck preformed hole threaded connection's upper end has the external screw thread and with concrete delivery pump pipe staple bolt connection's lower extreme area staple bolt draw-in groove down thick wall steel pipe, the lower extreme of upper thick wall steel pipe is provided with square flange end plate, the upper end of lower thick wall steel pipe is provided with square flange end plate down, fix through a plurality of connecting bolt of two opposite sides between square flange end plate and the square flange end plate down, be provided with the square backing plate that has the intermediate through-hole between square flange end plate and the square flange end plate down, the through-hole is the same with upper thick wall steel pipe internal diameter, the opposite both sides above the square backing plate are provided with a pair of elongated guide rail, square backing plate and a pair of elongated guide rail are also fixed through connecting bolt between upper square flange end plate and the square flange end plate down, insert the long and thin steel pipe that can follow the guide rail slip between a pair of elongated guide rail steel pipe, the through-hole the same with square thick wall internal diameter of upper thick wall on the push-in one end plate, through the push-in plate valve on the guide rail slip switch backing plate, control upper thick wall and lower thick wall steel pipe intercommunication.

The clearance between the gate valve and the upper square connecting flange end plate, the guide rail and the square backing plate is not more than 1mm, so that slurry leakage is avoided.

A pair of handles are arranged on the outer wall of the lower thick-wall steel pipe, are arranged in a radial horizontal mirror image mode, and are perpendicular to the push-pull direction of the gate valve.

The utility model has the positive effects that:

1. after the top arch is poured, the hole is sealed simply, conveniently and quickly, the full pouring of the concrete of the top arch of the tunnel is ensured, and the tunnel is used as a connector of a conveying pump pipe and a top arch lining trolley and is firmly connected.

2. After the lining trolley is demolded, the concrete at the periphery of the pouring hole is compact, and the top arch concrete has attractive appearance.

3. The tunnel top arch concrete is poured continuously, so that the pouring efficiency is improved, the secondary defect treatment in the later period is reduced, and the tunnel top arch concrete can be recycled.

Drawings

Fig. 1 is a schematic structural view of a tunnel roof arch concrete pouring hole packer of the present utility model.

Fig. 2 is a schematic view of a guide rail of the tunnel roof arch concrete pouring hole packer of the present utility model.

Fig. 3 is a schematic diagram of a backing plate of the tunnel roof arch concrete pouring hole packer of the utility model.

FIG. 4 is a schematic cross-sectional view of a tunnel roof arch concrete placement hole packer of the present utility model.

Fig. 5 is a view of a tunnel roof arch concrete pouring hole packer (gate valve open state) of the present utility model.

Fig. 6 is a diagram of a tunnel roof arch concrete pouring hole packer (gate valve closed state) of the present utility model.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-4, the tunnel top arch concrete pouring hole packer comprises an upper thick-wall steel pipe 1 with external threads at the upper end and a lower thick-wall steel pipe 3 with a hoop clamping groove at the lower end, wherein the upper thick-wall steel pipe 1 is in threaded connection with a top arch lining trolley reserved hole, the lower end of the lower thick-wall steel pipe 3 is provided with an upper square connecting flange end plate 4, the upper end of the lower thick-wall steel pipe 3 is provided with a lower square connecting flange end plate 9, the upper square connecting flange end plate 4 and the lower square connecting flange end plate 9 are fixed through a plurality of connecting bolts 7 with two opposite sides, a square base plate 6 with a middle through hole is arranged between the upper square connecting flange end plate 4 and the lower square connecting flange end plate 9, the through hole is identical to the inner diameter of the upper thick-wall steel pipe 1, two opposite sides of the upper square base plate 6 are provided with a pair of elongated guide rails 5, the square base plate 6 and the pair of elongated guide rails 5 are also fixed between the upper square connecting flange end plate 4 and the lower square connecting flange end plate 9 through the connecting bolts 7, a thin-wall plate 2 capable of sliding along the guide rails is inserted between the pair of elongated guide rails 5, one end of the thin-wall plate 2 is provided with a plate valve 2 with a through hole 10 with the upper thick-wall steel pipe 1, and the upper thick-wall 2 is communicated with the through hole 5 and the upper thick-wall 5 is communicated with the through the upper thick-wall plate 1 through the square base plate 6 through the through hole 6.

The clearance between the gate valve 2 and the upper square connecting flange end plate 4, the guide rail 5 and the square backing plate 6 is not more than 1mm, so that slurry leakage is avoided.

The outer wall of the lower thick-wall steel pipe 3 is provided with a pair of handles 8, and the handles 8 are horizontally arranged in a mirror image mode along the radial direction and are vertical to the push-pull direction of the gate valve 2.

As shown in figures 5 and 6, the tunnel roof arch concrete pouring hole packer is in threaded connection with a reserved hole of a roof arch lining trolley through the upper end, is connected with a concrete conveying pump pipe hoop through the lower end, is jointly applied to the roof arch lining trolley and the concrete conveying pump pipe, and is used for timely and fast hole sealing after the tunnel roof arch concrete pouring and pouring are completed.

When the tunnel roof arch concrete pouring hole packer is installed, firstly, the upper end of the tunnel roof arch lining trolley is aligned with a matched preformed hole with thick thread threads through an operating handle, and the tunnel roof arch lining trolley is screwed and fixed; the lower end is connected with a concrete conveying pump pipe through a hoop, and a gate valve is opened to perform tunnel top arch concrete pouring; and after the top arch concrete pouring is completed, the gate valve is closed timely and quickly. After the top arch concrete is initially set, after the top arch concrete does not have fluidity, the gate valve is opened, and the concrete in the upper section is timely removed, so that the next top arch can be repeatedly recycled when being poured.

The construction method of the tunnel top arch concrete pouring hole packer comprises the following steps:

1. the utility model discloses a method for manufacturing a hole packer for pouring concrete on a tunnel roof arch, which comprises the following steps: the hole packer is manufactured by machining steel pipes and steel plates, and meanwhile, when the hole packer is manufactured and assembled, contact surfaces of the gate valve 2, the upper square connecting flange end plate 4, the gate valve guide rail 5 and the backing plate 6 are required to be smooth and smooth, so that smooth opening and closing operations of the gate valve 2 are ensured, and blocking is avoided; the gap between the gate valve 2 and the gate valve guide rail 5 and the backing plate 6 of the upper square connecting flange end plate 4 is not more than 1mm, so that slurry leakage is avoided;

2. the tunnel arch concrete pouring hole packer manufactured by processing is transported to a construction site, and the upper end of the tunnel arch concrete pouring hole packer is aligned with a thread reserved hole of a lining trolley of the arch through an operation handle, and is screwed and fixed; the lower end is connected with a concrete conveying pump pipe through a hoop, and a gate valve is opened to perform tunnel top arch concrete pouring; and after the top arch concrete pouring is completed, the gate valve is closed timely and quickly.

3. After the top arch concrete is initially set, after the top arch concrete does not have fluidity, opening a gate valve, and timely removing the concrete in the upper section so as to be repeatedly recycled when the next top arch is poured;

when the hydraulic and hydroelectric engineering tunnel top arch concrete is poured, the hydraulic and hydroelectric engineering tunnel top arch concrete pouring device is used as a connector for a conveying pump pipe and a top arch lining trolley; after the top arch concrete pouring is completed, when the top arch concrete pouring is dismantled and connected with the tunnel lining trolley, the hole sealing is simple, convenient, timely and quick, the full pouring of the top arch concrete of the tunnel is ensured, the loss of the poured concrete of the top arch is avoided, a cavity is generated, after the lining trolley is demoulded, the concrete at the pouring hole position is compact and smooth, the total external sightseeing of the top arch concrete is internal, and the appearance is attractive. Meanwhile, concrete pouring can be continuously performed, the concrete pouring efficiency is improved, and secondary defect treatment in the later period is reduced.

The above-described embodiments are only for illustrating the technical spirit and features of the present utility model, and it is intended to enable those skilled in the art to understand the content of the present utility model and to implement it accordingly, and the scope of the present utility model is not limited to the embodiments, i.e. equivalent changes or modifications to the spirit of the present utility model are still within the scope of the present utility model.

Claims (3)

1. The tunnel top arch concrete pouring hole packer is characterized by comprising an upper thick-wall steel pipe (1) with external threads at the upper end in threaded connection with a top arch lining trolley preformed hole and a lower thick-wall steel pipe (3) with a hoop clamping groove at the lower end connected with a concrete delivery pump pipe hoop, wherein an upper square connecting flange end plate (4) is arranged at the lower end of the upper thick-wall steel pipe (1), a lower square connecting flange end plate (9) is arranged at the upper end of the lower thick-wall steel pipe (3), the upper square connecting flange end plate (4) and the lower square connecting flange end plate (9) are fixed through a plurality of connecting bolts (7) at two opposite sides, a square backing plate (6) with a middle through hole is arranged between the upper square connecting flange end plate (4) and the lower square connecting flange end plate (9), the through hole is the same as the inner diameter of the upper thick-wall steel pipe (1), a pair of long and thin guide rails (5) are also fixed between the upper square connecting flange end plate (4) and the lower square connecting flange end plate (9) through the connecting bolts (7), the long and thin steel pipe (2) can be inserted into the through holes (10) along the long and thin steel pipe (2) at the same inner diameter, through the through hole on the square backing plate (6) of push-pull valve (2) along guide rail (5) sliding switch, the intercommunication of thick-wall steel pipe (1) and thick-wall steel pipe (3) down is gone up in the control.

2. The tunnel top arch concrete pouring hole packer according to claim 1, wherein the clearance between the gate valve (2) and the upper square connecting flange end plate (4), the guide rail (5) and the square backing plate (6) is not more than 1mm, so that slurry leakage is avoided.

3. The tunnel top arch concrete pouring hole packer according to claim 1, wherein a pair of handles (8) is arranged on the outer wall of the lower thick-wall steel pipe (3), and the handles (8) are horizontally arranged in a mirror image mode along the radial direction and are perpendicular to the push-pull direction of the gate valve (2).