A portal sealing device for shield launching

Abstract

The application discloses a hole portal sealing device for shield launching, which comprises a pre-buried steel ring, a steel sleeve, a canvas rubber plate and a plurality of sealing steel wire brushes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shield construction equipment, and particularly relates to a hole portal sealing device for shield launching. BACKGROUND

[0002] In the shield machine construction process, the launching end head does not have ground reinforcement conditions when the shield is launched. After the shield is launched, the shield machine main machine does not completely enter the soil body, the soil chamber balance pressure cannot be established, and the soil body under the station floor is prone to loss, resulting in cracking of the station floor settlement. SUMMARY

[0003] The embodiment of the present specification provides a hole portal sealing device for shield launching, which is used to solve the problem that the ground at the shield launching end cannot be reinforced in the prior art, and water and soil loss and original building settlement cracking are easily caused.

[0004] The technical scheme provided by the embodiment of the present specification is:

[0005] The embodiment of the present application provides a hole portal sealing device for shield launching, which comprises:

[0006] A pre-buried steel ring is pre-buried in the hole portal;

[0007] A steel sleeve is connected to the pre-buried steel ring at one end through a bolt, and a top portion is provided with a grouting port;

[0008] A curtain rubber plate is in a ring-shaped plate structure and is connected to one end of the steel sleeve away from the hole portal;

[0009] A plurality of turning plates are arranged in a circumferential direction of the steel sleeve port, one end of the turning plate is rotationally connected to the end portion of the steel sleeve, and the other end can rotate into the steel sleeve;

[0010] A plurality of sealing steel wire brushes are arranged in a circumferential direction of the inner wall of the sleeve.

[0011] Further, the curtain rubber plate is arranged between the turning plate and the steel sleeve.

[0012] Further, the end portion of the turning plate is rotationally connected with a fixing plate, and the fixing plate is bolted to the end portion of the steel sleeve.

[0013] Further, the sealing steel wire brush is connected to the steel sleeve through a buffer mechanism.

[0014] Further, the buffer device comprises:

[0015] A mounting plate is welded to the inner wall of the steel sleeve, and one end close to the hole portal is provided with a slot;

[0016] An O-shaped buffer ring is arranged in the slot;

[0017] The sealing steel wire brush is inserted into the insertion slot at one end.

[0018] Further, the O-shaped buffer ring includes any one of an O-shaped steel ring and an O-shaped rubber ring.

[0019] Further, the bristles of the sealing steel wire brush form an angle of 15-60 degrees with the inner wall of the steel sleeve.

[0020] The above at least one technical solution adopted by the embodiments of the present application can achieve the following beneficial effects: the sealing performance of the starting hole portal during shield machine construction can be improved, water gushing and sand leakage from the working face to the outside of the hole can be prevented, the earth pressure balance during the starting of the shield machine is established, the safety of the working face is ensured, and the construction safety rate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are included to provide a further understanding of the present application, constitute a part of the present application and illustrate the illustrative embodiments of the present application and their description serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 The front view structural schematic diagram is provided for the embodiments of the present specification.

[0023] Figure 2 The partial side view structural schematic diagram is provided for the embodiments of the present specification.

[0024] Figure 3 The buffer mechanism structural schematic diagram is provided for the embodiments of the present specification. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described in detail below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0026] The technical scheme provided by the embodiments of the present application will be described in detail below in combination with the drawings.

[0027] The hole portal sealing device for shield starting provided by the embodiments of the present specification, please refer to Figure 1 and Figure 2 The hole portal sealing device for shield starting provided by the embodiments of the present specification, please refer to

[0028] The pre-embedded steel ring 1 is pre-embedded in the hole door A. The pre-embedding mode adopts a traditional pre-embedding mode, that is, the steel ring is connected with the main body of the anchor. One end of the steel sleeve 2 is connected with the pre-embedded steel ring through a bolt, and a grouting opening 21 is arranged at the top. The canvas rubber plate 3 is in a ring-shaped plate structure, and the canvas rubber plate 3 is connected to one end of the steel sleeve 2 away from the hole door. The turning plates 4 are arranged in a plurality of numbers, and the turning plates 4 are arranged in a circumferential direction of the port of the steel sleeve 2. Specifically, the first turning plate is connected with the second turning plate, and the turning plates are evenly arranged. One end of the turning plate 4 is rotationally connected with the end of the steel sleeve 2, and the other end can rotate into the steel sleeve 2. The sealing steel wire brush 5 is arranged in a plurality of numbers and arranged in a circumferential direction of the inner wall of the sleeve. Specifically, the plurality of sealing steel wire brushes form a ring and are arranged on the inner wall of the steel sleeve and connected with the inner wall of the steel sleeve through welding.

[0029] In use, the shield machine enters from one end of the steel sleeve provided with the turning plate, and in the entering process, the turning plate and the inner ring of the canvas rubber plate can be pushed into the steel sleeve to form a horn-shaped structure, and the inner ring of the canvas rubber plate is attached to the outer wall of the shield machine to realize the first sealing. Continue to enter, the inner ring of the sealing steel wire brush is attached to the outer ring of the shield machine to realize the second sealing of the profile. The embodiment can improve the sealing performance of the starting hole door during the construction of the shield machine, prevent the water gushing and sand leakage of the working face from flowing out of the hole, establish the earth pressure balance during the starting of the shield machine, ensure the safety of the working face, and improve the construction safety rate.

[0030] In a preferred implementation, the canvas rubber plate 3 is arranged between the turning plate 4 and the steel sleeve. The turning plate is behind the canvas rubber plate, which can provide support for the canvas rubber plate when the canvas rubber plate is subjected to pressure, thereby improving the pressure resistance of the canvas rubber plate and improving the reliability of the sealing.

[0031] In a preferred implementation, the end of the turning plate is rotationally connected with a fixing plate 6, and the fixing plate is bolted with the end of the steel sleeve. The rotation connection of the turning plate 4 is realized.

[0032] In a preferred implementation, the sealing steel wire brush is connected with the steel sleeve through a buffer mechanism. The buffer mechanism includes a mounting plate 7 and an O-shaped buffer ring 8.

[0033] The mounting plate 7 is welded with the inner wall of the steel sleeve 2, and the end close to the hole door is provided with a slot 71.

[0034] The O-shaped buffer ring 8 is arranged in the slot 71, and one end of the sealing steel wire brush 5 is inserted into the slot. In use, due to the existence of the O-shaped buffer ring, when subjected to the impact of the grout, the sealing steel wire brush can play a buffering role, preventing the impact force of the grout on the sealing steel wire brush from being too large and causing the sealing steel wire brush to separate from the steel sleeve. The stability of use is improved. At the same time, it is also convenient to install.

[0035] Preferably, the O-shaped buffer ring includes any one of an O-shaped steel ring and an O-shaped rubber ring. The bristles of the sealing steel wire brush form an angle of 15-60 degrees with the inner wall of the steel sleeve.

[0036] It is also to be noted that the terms "comprising", "including", and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0037] The above description is only the preferred embodiment of the present application, but not intended to limit the present application. The present application can be modified and changed by those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. A portal seal arrangement for shield launching, characterised in that, The utility model relates to a pre-buried steel ring, a steel sleeve, a rubber cord rubber board, a plurality of turning plates and a plurality of sealing steel wire brushes. The utility model relates to a pre-buried steel ring, a steel sleeve, a rubber cord rubber board, a plurality of turning plates and a plurality of sealing steel wire brushes. The utility model relates to a pre-buried steel ring, a steel sleeve, a rubber cord rubber board, a plurality of turning plates and a plurality of sealing steel wire brushes. The utility model relates to a pre-buried steel ring, a steel sleeve, a rubber cord rubber board, a plurality of turning plates and a plurality of sealing steel wire brushes. The utility model relates to a pre-buried steel ring, a steel sleeve, a rubber cord rubber board, a plurality of turning plates and a plurality of sealing steel wire brushes. The utility model relates to a pre-buried steel ring, a steel sleeve, a rubber cord rubber board, a plurality of turning plates and a plurality of sealing steel wire brushes.

2. A portal sealing device for launching a tunnel boring machine according to claim 1, wherein, The utility model relates to a pre-buried steel ring, a steel sleeve, a rubber cord rubber board, a plurality of turning plates and a plurality of sealing steel wire brushes.

3. A portal sealing device for launching a shield tunneling machine according to claim 1, characterized in that, The utility model relates to a pre-buried steel ring, a steel sleeve, a rubber cord rubber board, a plurality of turning plates and a plurality of sealing steel wire brushes.

4. A portal sealing device for launching a shield tunneling machine according to claim 1, wherein The utility model relates to a pre-buried steel ring, a steel sleeve, a rubber cord rubber board, a plurality of turning plates and a plurality of sealing steel wire brushes.

5. A portal seal for a shield launching according to claim 4, characterised in that, The utility model relates to a pre-buried steel ring, a steel sleeve, a rubber cord rubber board, a plurality of turning plates and a plurality of sealing steel wire brushes. The utility model relates to a pre-buried steel ring, a steel sleeve, a rubber cord rubber board, a plurality of turning plates and a plurality of sealing steel wire brushes. The utility model relates to a pre-buried steel ring, a steel sleeve, a rubber cord rubber board, a plurality of turning plates and a plurality of sealing steel wire brushes. The utility model relates to a pre-buried steel ring, a steel sleeve, a rubber cord rubber board, a plurality of turning plates and a plurality of sealing steel wire brushes.

6. A portal seal for a shield launching according to claim 5, wherein, The utility model relates to a pre-buried steel ring, a steel sleeve, a rubber cord rubber board, a plurality of turning plates and a plurality of sealing steel wire brushes.

7. A portal sealing device for launching a shield tunneling machine according to claim 1, wherein The utility model relates to a pre-buried steel ring, a steel sleeve, a rubber cord rubber board, a plurality of turning plates and a plurality of sealing steel wire brushes. The utility model relates to a pre-buried steel ring, a steel sleeve, a rubber cord rubber board, a plurality of turning plates and a plurality of sealing steel wire brushes. The utility model relates to a pre-buried steel ring, a steel sleeve, a rubber cord rubber board, a plurality of turning plates and a plurality of sealing steel wire brushes. The utility model relates to a pre-buried steel ring, a steel sleeve,

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