Recyclable steel sleeve for shield launching and receiving

Abstract

The utility model relates to the technical field of steel sleeves and discloses a recyclable shield launching and receiving steel sleeve which comprises a lower steel sleeve body and an upper steel sleeve body, the upper steel sleeve body is fixedly connected to the top of the lower steel sleeve body through screws, and a supporting mechanism is arranged at the bottom of the lower steel sleeve body. Sealing mechanisms are arranged on the inner sides and the outer sides of the lower steel sleeve and the upper steel sleeve, the supporting mechanisms comprise supporting bases, threaded bases, screws and base plates, the three sets of supporting bases are welded to the bottom of the lower steel sleeve, the four sets of threaded bases are arranged at the symmetrical positions of the two sides of the supporting bases correspondingly, and the screws are in threaded connection to the inner sides of the two sets of threaded bases in the vertical direction; the two sides of the base plates are in threaded connection with the two screws. According to the recyclable steel sleeve for shield launching and receiving, the base plate is cushioned to the bottom of the supporting seat, so that when the steel sleeve is installed on the uneven ground, the supporting seat can be cushioned by the base plate, the steel sleeve is not prone to deflection during installation, and launching and receiving of a shield tunneling machine are facilitated.

Description

Technical Field

[0001] This application relates to the field of steel sleeve technology, specifically a reusable steel sleeve for shield launching and receiving. Background Technology

[0002] A tunnel boring machine (TBM) is a type of tunnel boring machine that uses the shield tunneling method. The shield tunneling method is a mechanized construction method that advances the TBM underground, using the shield shell and segments to support the surrounding rock and prevent tunnel collapse. In the construction of shield tunnel sections, the initiation and reception of the TBM are crucial processes in the entire project. To balance the earth pressure and water pressure at the excavation face when the TBM enters or reaches the receiving tunnel, the steel sleeve method can be used.

[0003] Steel sleeves are typically fixed in place by brackets to ensure stable installation. However, when the steel sleeve is fixed to the ground by brackets, some areas of the ground may not be flat, which can cause the steel sleeve to be installed crookedly, thus affecting the starting and receiving of the tunnel boring machine. In addition, fixing the steel sleeve with brackets makes it inconvenient to safely disassemble and assemble the steel sleeve, making it inconvenient to reuse the steel sleeve multiple times.

[0004] Therefore, there is an urgent need for a reusable steel sleeve for shield launching and receiving to solve the problem that steel sleeves are prone to misalignment during installation. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a reusable steel sleeve for shield tunneling launch and reception, which has the advantages of convenient and stable installation and solves the problem of steel sleeves being easily installed crookedly.

[0006] To achieve the above objectives, this application provides the following technical solution: a reusable steel sleeve for shield tunneling initiation and reception, comprising a lower steel sleeve and an upper steel sleeve, wherein the upper steel sleeve is fixedly connected to the top of the lower steel sleeve by screws, a support mechanism is provided at the bottom of the lower steel sleeve, and sealing mechanisms are provided on the inner and outer sides of the lower and upper steel sleeves.

[0007] The support mechanism includes a support base, a threaded seat, a screw, and a pad. Three sets of the support bases are welded to the bottom of the lower rigid sleeve. Four sets of the threaded seats are respectively arranged symmetrically on both sides of the support base. The screw is threaded to the inner side of the two sets of threaded seats in the vertical direction. Several sets of pads are threaded to the two sets of screws on both sides.

[0008] By placing a shim plate under the support base, the steel sleeve can be supported when installed on uneven ground, preventing it from tilting during installation and facilitating the initiation and reception of the tunnel boring machine.

[0009] Preferably, the support base and the threaded base are integrally formed.

[0010] Preferably, several sets of the pads are stacked on the bottom of the support base.

[0011] Preferably, the sealing mechanism includes a first gasket, a second gasket, and a bolt. The first gasket is bonded to the grooves on both sides of the top of the lower steel sleeve, the second gasket is bonded to the grooves at both ends of the lower and upper steel sleeves, and the bolt is installed on the plates at both ends of the lower and upper steel sleeves.

[0012] Preferably, the upper steel sleeve has a feed inlet welded to the top, and a sealing plate is fixedly connected to the top of the feed inlet by screws.

[0013] Preferably, a square slot is provided at the top of the upper steel sleeve at the position corresponding to the feed inlet.

[0014] In summary, this application includes at least one of the following beneficial effects:

[0015] 1. This reusable shield launching and receiving steel sleeve can be placed under the support base by a pad during installation. This allows the steel sleeve to be supported on uneven ground, preventing it from tilting during installation and facilitating the launching and receiving of the tunnel boring machine.

[0016] 2. This reusable shield launching and receiving steel sleeve has a gasket installed between the lower and upper steel sleeves to ensure a tighter assembly. When multiple lower and upper steel sleeves are connected, a second gasket is placed between adjacent lower and upper steel sleeves to further tighten the connection, thereby improving the sealing performance of the steel sleeve and providing better protection for the shield machine. The lower and upper steel sleeves can be disassembled, and the lower steel sleeve can be fixed to the ground with bolts, allowing the entire steel sleeve to be easily disassembled and reused. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the steel sleeve in this application;

[0018] Figure 2 This is a bottom view of the steel sleeve structure of this application;

[0019] Figure 3 This is a structural diagram of the lower rigid sleeve of this application;

[0020] Figure 4 This is a structural diagram of the upper rigid sleeve of this application.

[0021] Among them: 1. Lower steel sleeve; 111. Support seat; 112. Threaded seat; 113. Screw; 114. Washer plate; 2. Upper steel sleeve; 211. Washer one; 212. Washer two; 213. Bolt; 214. Feed port; 215. Sealing plate. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] Please see Figure 1-4 A reusable shield tunneling launching and receiving steel sleeve includes a lower steel sleeve 1 and an upper steel sleeve 2. The upper steel sleeve 2 is fixedly connected to the top of the lower steel sleeve 1 by screws. The lower steel sleeve 1 and the upper steel sleeve 2 are fixed together by screws, allowing for a modular splicing of the lower steel sleeve 1 and the upper steel sleeve 2, which facilitates the installation of the steel sleeve. A support mechanism is provided at the bottom of the lower steel sleeve 1, which can be easily fixed to the ground. Sealing mechanisms are provided on the inner and outer sides of the lower steel sleeve 1 and the upper steel sleeve 2. Multiple lower steel sleeves 1 and upper steel sleeves 2 can be combined to form a steel sleeve.

[0024] Specifically, the support mechanism includes a support seat 111, a threaded seat 112, a screw 113, and a pad 114. Three sets of support seats 111 are welded to the bottom of the lower rigid sleeve 1. Four sets of threaded seats 112 are respectively arranged symmetrically on both sides of the support seat 111. The support seat 111 and the threaded seat 112 are integrally formed. The screw 113 is threaded to the inner side of the two sets of threaded seats 112 in the vertical direction. Several sets of pads 114 are threaded to the two sets of screws 113 on both sides. Several sets of pads 114 are stacked on the bottom of the support seat 111.

[0025] With the above technical solution, when the steel sleeve is installed on the ground and the ground is uneven, the workers can place multiple pads 114 on the bottom of the support base 111 so that the lower steel sleeve 1 can be kept level and not tilted, which is convenient for the tunnel boring machine to start and receive. The screw 113 passes through the threaded seat 112 and the pads 114 and is then inserted into the ground to fix the lower steel sleeve 1.

[0026] Specifically, the sealing mechanism includes gasket 211, gasket 212, and bolt 213. Gasket 211 is bonded to the grooves on both sides of the top of the lower steel sleeve 1. Gasket 212 is bonded to the grooves at both ends of the lower steel sleeve 1 and the upper steel sleeve 2. Bolt 213 is installed on the plates at both ends of the lower steel sleeve 1 and the upper steel sleeve 2. A feed port 214 is welded to the top of the upper steel sleeve 2. A square groove is opened at the position corresponding to the feed port 214 on the top of the upper steel sleeve 2. A sealing plate 215 is fixedly connected to the top of the feed port 214 by screws.

[0027] Through the above technical solution, gasket 1 211 is installed between the lower steel sleeve 1 and the upper steel sleeve 2, making the assembly of the lower steel sleeve 1 and the upper steel sleeve 2 more compact. When multiple lower steel sleeves 1 and upper steel sleeves 2 are connected, gasket 212 is located between adjacent lower steel sleeves 1 and upper steel sleeves 2, making the steel sleeves more tightly connected, thereby improving the sealing performance of the steel sleeves and allowing the steel sleeves to better protect the tunnel boring machine. The lower steel sleeves 1 and upper steel sleeves 2 can be disassembled from each other. The lower steel sleeve 1 can be fixed to the ground by screw 113, making the entire steel sleeve easy to disassemble. The sealing plate 215 is installed on the top of the feed inlet 214, allowing the steel sleeve to be easily sealed.

[0028] When in use, the pad 114 is placed under the support base 111 so that when the steel sleeve is installed on uneven ground, the pad 114 can support the support base 111, so that the steel sleeve is not easily tilted during installation, which facilitates the starting and receiving of the tunnel boring machine.

[0029] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reusable steel sleeve for launching and receiving tunnel boring machines, comprising a lower steel sleeve (1) and an upper steel sleeve (2), characterized in that: The upper steel sleeve (2) is fixedly connected to the top of the lower steel sleeve (1) by screws. The bottom of the lower steel sleeve (1) is provided with a support mechanism. The inner and outer sides of the lower steel sleeve (1) and the upper steel sleeve (2) are provided with sealing mechanisms. The support mechanism includes a support base (111), a threaded seat (112), a screw (113), and a pad (114). Three sets of the support bases (111) are welded to the bottom of the lower steel sleeve (1). Four sets of the threaded seats (112) are respectively arranged symmetrically on both sides of the support bases (111). The screw (113) is threaded to the inner side of the two sets of threaded seats (112) in the vertical direction. Several sets of pads (114) are threaded to the two sets of screws (113) on both sides.

2. The reusable shield launching and receiving steel sleeve according to claim 1, characterized in that: The support base (111) and the threaded base (112) are integrally formed.

3. A reusable steel sleeve for shield tunneling launching and receiving according to claim 1, characterized in that: Several sets of the pads (114) are stacked on the bottom of the support (111).

4. A reusable steel sleeve for shield tunneling launching and receiving according to claim 1, characterized in that: The sealing mechanism includes a gasket (211), a gasket (212), and a bolt (213). The gasket (211) is bonded to the grooves on both sides of the top of the lower steel sleeve (1). The gasket (212) is bonded to the grooves at both ends of the lower steel sleeve (1) and the upper steel sleeve (2). The bolt (213) is installed on the plates at both ends of the lower steel sleeve (1) and the upper steel sleeve (2).

5. A reusable steel sleeve for shield tunneling launching and receiving according to claim 4, characterized in that: The upper steel sleeve (2) has a feed inlet (214) welded to the top, and a sealing plate (215) is fixedly connected to the top of the feed inlet (214) by screws.

6. A reusable steel sleeve for shield launching and receiving according to claim 1, characterized in that: A square slot is provided at the top of the upper steel sleeve (2) corresponding to the feed inlet (214).

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