Visual cutter checking device under high-pressure condition of shield soil cabin

Abstract

The utility model discloses a visual cutter checking device under the high-pressure condition of a shield soil cabin. The visual cutter checking device comprises a jack, a piston push rod, a connector, a sealing ring, a camera and a displayer. The connector is used for being connected with a ball valve arranged at the position of a shield tunneling machine soil bin wall plate, an insertion hole is formed in the connector, a sealing ring is arranged on the inner circumferential wall of the insertion hole, the piston push rod is inserted into the insertion hole, the piston push rod is sleeved with the sealing ring, and the jack is connected with the piston push rod. The interior of the piston push rod is hollow to form a threading hole, the camera is arranged at the position of a rod head on one side of the piston push rod and connected with the displayer through a cable, the cable penetrates through the threading hole, and rod heads on the two sides of the piston push rod are connected with the cable by winding sealing adhesive tape. According to the device, the connector is connected with the ball valve arranged at the position of the shield tunneling machine soil bin wall plate, after the ball valve is opened, the piston push rod is pushed by the jack to drive the camera to move, visual tool checking under the high-pressure condition can be achieved, operation is safe and convenient, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the field of shield construction, in particular to a visual tool inspection device under high pressure in a shield soil chamber. Background Art

[0002] During the tunnel construction process of a shield machine, it is necessary to regularly open the chamber to inspect the tools to check the tool wear condition and whether the cutter head is damaged, etc. However, when the pressure in the shield soil chamber is higher than 5 bar and in special section positions, it is impossible to perform normal-pressure chamber opening to judge the tool usage condition, and the pressure chamber opening has problems such as high requirements for the personnel entering the chamber and high construction risks. Therefore, it is necessary to design a visual tool inspection device under high pressure in a shield soil chamber. Content of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a visual tool inspection device under high pressure in a shield soil chamber.

[0004] The technical solution of the utility model is as follows: A visual tool inspection device under high pressure in a shield soil chamber, characterized in that it includes: a jack, a piston push rod, a connector, a sealing ring, a camera and a display;

[0005] The connector is used to connect with the built-in ball valve at the position of the shield machine soil chamber wall plate. A jack hole penetrating through the connector is provided inside the connector. A plurality of sealing rings are coaxially provided on the inner peripheral wall of the jack hole. The piston push rod is inserted into the jack hole, the sealing ring is sleeved on the piston push rod, and the jack is connected with the piston push rod;

[0006] The inside of the piston push rod is hollow to form a wire passing hole and the wire passing hole penetrates to both side rod heads of the piston push rod. The camera is arranged at one side rod head of the piston push rod. The camera is connected with the display through a cable, the cable is arranged in the wire passing hole, and both side rod heads of the piston push rod are connected with the cable by winding sealing tape.

[0007] Further, the inner diameter of the jack hole is 2 mm larger than the outer diameter of the piston push rod.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0009] This device uses the connector to connect with the built-in ball valve at the position of the shield machine soil chamber wall plate. After opening the ball valve, the jack is used to push the piston push rod to drive the camera to move, so as to realize visual tool inspection under high pressure. This visual device has a simple structure, safe and convenient operation, and strong practicability.

[0010] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Brief Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0012] Figure 1 is a schematic diagram of the present utility model;

[0013] Figure 2 is a connection schematic diagram of the connector of the present utility model and the shield machine ball valve.

[0014] Reference Numerals:

[0015] 1, Jack; 2, Piston Push Rod; 3, Connector; 4, Sealing Ring; 5, Camera; 6, Display; 7, Ball Valve; 8, Jack Hole; 9, Cable; 10, Sealing Tape. Detailed Description of the Embodiments

[0016] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0017] The following will describe in detail the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation of the present utility model.

[0018] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0019] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0020] As Figure 1 - Figure 2 shown, a visual inspection device for a shield soil chamber under high pressure includes: a jack 1, a piston push rod 2, a connector 3, a sealing ring 4, a camera 5 and a display 6.

[0021] The connector 3 is used to connect with a built-in ball valve 7 at the position of the soil chamber wall plate of the shield machine. A jack 8 penetrating the connector 3 is provided inside the connector 3. A plurality of sealing rings 4 are coaxially provided on the inner peripheral wall of the jack 8. The piston push rod 2 is inserted into the jack 8. The sealing ring 4 is sleeved on the piston push rod 2, and the jack 1 is connected to the piston push rod 2.

[0022] The inside of the piston push rod 2 is hollow to form a wire threading hole and the wire threading hole penetrates to both side rod heads of the piston push rod 2. The camera 5 is arranged at one side rod head of the piston push rod 2. The camera 5 is connected to the display 6 through a cable 9. The cable 9 is threaded through the wire threading hole. Both side rod heads of the piston push rod 2 are connected to the cable 9 by winding a sealing tape 10.

[0023] In this device, the used connector 3 is selected as a direct double male head, and the inside of the direct channel of the double male head is finely processed. As Figure 2 shown, the inner diameter of the jack 8 of the double male head only reserves 2 mm larger than the outer diameter of the piston push rod 2. Then a groove is provided on the inner peripheral wall of the jack 8, and a sealing ring 4 is provided in the groove. When the piston push rod 2 is inserted into the jack 8, the sealing ring 4 can make up for the gap between the piston push rod 2 and the connector 3 to prevent water seepage caused by pressure.

[0024] The camera 5 is integrally connected to the display 6 through the cable 9. This is an existing product. The camera 5 is used to collect images, which are then displayed on the display 6. The cable 9 is threaded through the internal threading hole of the piston push rod 2, and then the two rod heads of the piston push rod 2 are connected to the cable 9 by winding sealing tape 10 to achieve a sealing effect.

[0025] After the piston push rod 2, the connector 3 and the visual camera 5 are installed as a whole, the piston push rod 2 is welded to the jack 1 to form a pushing system. The jack 1 used is an existing monkey climbing rod type jack 1. After the connector 3 of this device is connected to the built-in ball valve 7 at the position of the shield machine earth pressure chamber wall panel, the ball valve 7 is opened, and the jack 1 pushes the piston push rod 2 to move, so that visual inspection of the tool can be realized under high pressure. This visual device has a simple structure, safe and convenient operation, and strong practicability.

[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A visual inspection device for cutter under high pressure in the shield soil chamber, characterized in that Including: A jack, a piston push rod, a connector, a sealing ring, a camera and a display; The connector is used to connect with a built-in ball valve at the position of the soil bin wall plate of the shield machine. A jacking hole penetrating through the connector is arranged inside the connector. A plurality of sealing rings are coaxially arranged on the inner peripheral wall of the jacking hole. The piston push rod is inserted into the jacking hole. The sealing ring is sleeved on the piston push rod. The jack is connected with the piston push rod; The inside of the piston push rod is hollow to form a wire threading hole, and the wire threading hole penetrates through the two side rod heads of the piston push rod. The camera is arranged at one side rod head of the piston push rod. The camera is connected with the display through a cable. The cable is arranged in the wire threading hole. The two side rod heads of the piston push rod are connected with the cable by winding sealing tape.

2. The visual inspection device for cutter under high pressure in the shield soil chamber according to claim 1, characterized in that The inner diameter of the jacking hole is 2 mm larger than the outer diameter of the piston push rod.

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