Air duct support for shield tunneling machine trolley

Abstract

The utility model discloses an air duct support for a shield tunneling machine trolley, which comprises a mounting plate fixed on the top wall of the shield tunneling machine trolley, and a plurality of vertical support rods are uniformly arranged on the mounting plate along the tunneling direction of the shield tunneling machine trolley; each vertical supporting rod is vertically provided with a semi-circular-arc-shaped cylinder, the two ends of each cylinder are each provided with an insertion opening, and the end of the insertion opening in the top of each cylinder is provided with a folding section. The drawing and inserting ring is inserted into the top inserting opening of the cylinder and can rotate downwards in the circumferential direction of the cylinder; the hook is positioned at the top of the inner wall of the cylinder and is used for hanging an air duct framework ring; the canvas air duct is evenly sleeved with the air duct framework rings. Only two persons are needed when the device is assembled and disassembled on site, edge work is not needed, manpower resource investment is effectively reduced, and meanwhile construction risks of constructors are reduced. Meanwhile, compared with an iron sheet air duct easy to rust, the whole canvas air duct is longer in service life, not prone to damage in the hoisting process and lower in overall cost.

Description

Technical Field

[0001] The utility model relates to the field of shield construction devices, in particular to a wind tube bracket for a shield machine trolley. Background Art

[0002] The shield machine trolley is the main construction machinery in shield construction, usually including the shield machine and the shield trolley that is matched and connected to the shield machine. Since the shield machine is excavated underground during construction, and the tunnel is narrow and long, it is difficult for the air to circulate and exchange effectively with the outside world, which aggravates the air pollution in the tunnel and causes great harm to the health of the shield construction workers inside the tunnel. Therefore, it is necessary to supply air through the form of fan + wind tube to ensure the air quality and temperature of the tunnel construction environment.

[0003] The traditional shield machine trolley wind duct uses an iron-type wind duct. During the installation, because the iron-type wind duct is heavy and long, a large number of construction workers are required to cooperate with each other to complete the installation process, which greatly increases the manpower investment in the installation process. Also, because it is heavy and long, it is easy to deform and damage during the disassembly and hoisting process, and it is easy to rust during storage, causing problems such as being unusable in the later stage. Therefore, canvas wind ducts are often used in the prior art for the exhaust operation of the shield machine trolley to enhance the air circulation inside the tunnel.

[0004] The existing wind tube brackets are generally made of iron. Due to the high humidity environment in the tunnel, they are prone to rust after a period of use. Therefore, the wind tube brackets need to be replaced to ensure the normal use of the wind tube. However, since the wind tube brackets are generally mounted on the canvas wind tube in sequence, it is difficult to replace the wind tube bracket at a specific position separately; at the same time, there is a great safety hazard when disassembling and assembling the wind tube because the trolley has no edge protection.

[0005] Therefore, a wind tube support for a shield machine trolley is proposed to solve the above technical problems. Utility Model Content

[0006] The technical problem solved by the utility model is that the canvas wind duct of the traditional shield machine trolley is generally mounted on the outside of the canvas wind duct in sequence, so it is difficult to replace the wind duct bracket at a specific position separately, and there is a safety hazard due to the lack of edge protection when disassembling and assembling the wind duct.

[0007] In order to solve the above technical problems, the technical solutions adopted by the present utility model are as follows:

[0008] A wind tube support for a shield machine trolley, comprising a mounting plate fixed to the top wall of the shield machine trolley, wherein a plurality of vertical support rods are evenly arranged on the mounting plate along the excavation direction of the shield machine trolley; a semi-circular arc cylinder is vertically arranged on each of the vertical support rods, and plug-in ports are arranged at both ends of the cylinder, and a retracting section is arranged at the end of the plug-in port at the top of the cylinder;

[0009] It also includes a pumping ring inserted into the plug-in port at the top of the cylinder, the pumping ring can rotate downward along the circumference of the cylinder, the pumping ring is in a semicircular arc shape with the same diameter as the cylinder, and a limit plate cooperating with the retracting section is provided at the top end of the pumping ring. When the limit plate is stuck by the retracting section, the bottom end of the pumping ring is just inserted into the plug-in port at the bottom of the cylinder;

[0010] It also includes a hook located at the top of the inner wall of the cylinder, and the hook is used to hang the wind tube frame ring;

[0011] The wind tube frame ring is evenly sleeved on the outside of the canvas wind tube.

[0012] Particularly, a hanging ring which is hung on a hook is provided at the top of the air duct frame ring.

[0013] Particularly, a force-applying disc is also provided at the lower half of the thrusting ring.

[0014] Furthermore, it also includes a compression spring for driving the insertion and withdrawal ring to move downward, one end of the compression spring is connected to the side of the force-applying disk, and the other end is hinged to the outer wall of the plug-in interface at the top of the cylinder.

[0015] Particularly, the vertical support rod comprises a sleeve section at the bottom and an inserting section at the top, and the sleeve section and the inserting section are provided with a plurality of mutually matching transverse pull-through holes, and locking bolts are provided in the transverse pull-through holes.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0017] The utility model can replace the wind tube bracket by lifting the extraction ring from the plug-in interface, quickly taking out the canvas wind tube from the wind tube bracket at the rusted position, and then installing the canvas wind tube into the new wind tube bracket by utilizing the gap between the extraction ring and the plug-in interface, thereby completing the process of individually replacing one or several rusted points in the wind tube bracket, effectively avoiding the need to replace all the wind tubes from the end to the rusted bracket position every time, reducing the amount of manual work and effectively reducing labor costs; the utility model only needs two people for on-site installation and disassembly, and does not need to work at the edge, which can effectively reduce human resource investment, and can also effectively shorten the installation and disassembly time of the wind tube, reducing the construction risk of construction personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the device of the utility model.

[0019] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure at point A in the middle.

[0020] Figure 3 This is a schematic diagram of the canvas wind tube structure.

[0021] The meanings of the numbers in the figure are as follows: mounting plate—1; vertical support rod—2; cylinder—3; plug-in interface—4; retracting section—5; extraction and insertion ring—6; limiting plate—7; hook—9; air cylinder frame ring—10; hanging ring—11; force disc—12; compression spring—13; sleeve section—14; plug-in section—15; horizontal pull-through hole—16. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings in the embodiments of the utility model, so as to have a further understanding of the concept of the utility model, the technical problems solved, the technical features constituting the technical solutions and the technical effects brought about.

[0023] like Figure 1~Figure 3 As shown, a wind tube support for a shield machine trolley comprises a mounting plate 1 fixed to the top wall of the shield machine trolley, on which a plurality of vertical support rods 2 are evenly arranged along the excavation direction of the shield machine trolley; on each of the vertical support rods 2, a semicircular arc-shaped cylinder 3 is vertically arranged, and both ends of the cylinder 3 are provided with plug-in ports 4, and a retracting section 5 is provided at the end of the plug-in port 4 at the top of the cylinder 3;

[0024] It also includes a pumping ring 6 inserted into the plug-in port 4 at the top of the cylinder 3, the pumping ring 6 can rotate downward along the circumference of the cylinder 3, the pumping ring 6 is a semicircular arc with the same diameter as the cylinder 3, and the top end of the pumping ring 6 is provided with a limit plate 7 that cooperates with the retracting section 5. When the limit plate 7 is stuck by the retracting section 5, the bottom end of the pumping ring 6 is just inserted into the plug-in port 4 at the bottom of the cylinder 3;

[0025] It also includes a hook 9 located at the top of the inner wall of the cylinder 3, and the hook 9 is used to hang the wind tube frame ring;

[0026] The wind tube frame ring is evenly sleeved on the outside of the canvas wind tube.

[0027] The main principle of the utility model is as follows: on the mounting plate 1 on the top surface of the shield machine trolley, a vertical support rod 2 is installed at a certain distance according to the design position of the wind tube, and the insertion ring 6 has been installed in advance in the cylinder 3. After the bottom of the cylinder 3 is fixedly connected to the vertical support rod 2, the hook 9 is welded to the inner wall of the top of the cylinder 3. After all the assemblies are completed, the entire surface of the device is de-edged to avoid scratching the operator, and then the paint is sprayed to prevent the device from oxidation and rust. In this process, in order to facilitate the natural fall of the insertion ring 6, the central angle corresponding to the cylinder 3 is usually greater than 180 degrees, so that the end part of the insertion ring 6 is in a position that is convenient for falling in the initial state. When it is necessary to install the canvas wind tube, the insertion ring 6 is manually lifted to open the circular part, and the canvas wind tube is manually placed in the inner circular area of ​​the cylinder 3 and then hung on the hook 9 through the wind tube skeleton ring 10, and then the insertion ring 6 is lowered to close the cylinder 3 to complete the overall installation. When it is necessary to dismantle, the fan is turned off first, and then one person opens the insertion ring 6 and one person takes out the wind tube.

[0028] As a preferred embodiment, a hanging ring 11 hung on the hook 9 is provided on the top of the hair duct frame ring 10 .

[0029] This embodiment provides a specific connection method between the hair duct frame ring 10 and the hook 9. The separately arranged hanging ring 11 can enable the staff to complete the hanging work of the hair duct frame ring 10 more conveniently, and also helps to maintain the overall balance of the hair duct frame ring 10.

[0030] As a preferred embodiment, a force-applying disc 12 is further provided at the lower half of the thrusting ring 6 .

[0031] In this embodiment, by providing a force-applying disc 12 on the thrusting ring 6 , the staff can have a force-applying point when lifting and lowering the thrusting ring 6 , which facilitates lifting or lowering the thrusting ring 6 .

[0032] As a further embodiment, it also includes a compression spring 13 for driving the insertion and withdrawal ring 6 to move downward, one end of the compression spring 13 is connected to the side of the force-applying disk 12, and the other end is hinged to the outer wall of the insertion port 4 at the top of the cylinder 3.

[0033] In this embodiment, a compression spring 13 is provided so that the force-applying disc 12 is subjected to a force applied by the compression spring 13 during use, thereby ensuring that the insertion and withdrawal ring 6 can completely close the opening of the cylinder 3, thereby preventing the canvas wind cylinder from falling off from the cylinder 3.

[0034] As a preferred embodiment, the vertical support rod 2 includes a sleeve section 14 at the bottom and an inserting section 15 at the top. The sleeve section 14 and the inserting section 15 are provided with a plurality of mutually matching transverse pull holes 16 , and locking bolts are provided in the transverse pull holes 16 .

[0035] In this embodiment, by configuring the vertical support rod 2 as a telescopic structure with adjustable height, the length of the vertical support rod 2 can be adjusted according to actual needs to adjust the height of the canvas wind tube.

[0036] The words “connection” and “fixation” appearing in the description of the present invention may refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.

[0037] In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying a specific orientation that the device or element referred to must have, and therefore cannot be understood as a limitation on the present invention.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A wind tube support for a shield machine trolley, characterized in that: It comprises a mounting plate (1) fixed to the top wall of a shield machine carriage, wherein a plurality of vertical support rods (2) are evenly arranged on the mounting plate (1) along the excavation direction of the shield machine carriage; a semi-circular arc-shaped cylinder (3) is vertically arranged on each of the vertical support rods (2), and both ends of the cylinder (3) are provided with plug-in ports (4), and a retracting section (5) is provided at the end of the plug-in port (4) at the top of the cylinder (3); It also includes a pull-in ring (6) inserted into the plug-in interface (4) at the top of the cylinder (3), the pull-in ring (6) can rotate downward along the circumference of the cylinder (3), the pull-in ring (6) is in the shape of a semicircular arc with the same diameter as the cylinder (3), and a limit plate (7) cooperating with the retracting section (5) is provided at the top end of the pull-in ring (6), and when the limit plate (7) is clamped by the retracting section (5), the bottom end of the pull-in ring (6) is just inserted into the plug-in interface (4) at the bottom of the cylinder (3); It also includes a hook (9) located at the top of the inner wall of the cylinder (3), and the hook (9) is used to hang the wind tube frame ring (10); The wind tube frame ring (10) is evenly sleeved on the outside of the canvas wind tube.

2. The wind tube support for a shield machine trolley as claimed in claim 1, characterized in that: The top of the wind tube frame ring (10) is provided with a hanging ring (11) hung on the hook (9).

3. The wind tube support for a shield machine trolley according to claim 1, characterized in that: The lower half of the insertion and withdrawal ring (6) is also provided with a force-applying disc (12).

4. The wind tube support for a shield machine trolley as claimed in claim 3, characterized in that: It also includes a compression spring (13) for driving the insertion and withdrawal ring (6) to move downward, wherein one end of the compression spring (13) is connected to the side of the force-applying disc (12), and the other end is hinged to the outer wall of the insertion port (4) at the top of the cylinder (3).

5. The wind tube support for a shield machine trolley according to claim 1, characterized in that: The vertical support rod (2) comprises a sleeve section (14) at the bottom and a plug section (15) at the top. The sleeve section (14) and the plug section (15) are provided with a plurality of mutually matching transverse pull-through holes (16), and locking bolts are provided in the transverse pull-through holes (16).

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