Double-shield guiding system feature point assembly

Abstract

The utility model provides a double shield guiding system feature point assembly, which comprises a support body, a light emitting module and a control module, the support body is fixed on an anterior shield, and an elastic buffer piece is filled between the support body and the anterior shield; the light-emitting module is arranged in the supporting body and provides a light source for forming feature points; the control module is electrically connected with the light-emitting module and used for controlling the light-emitting frequency of the light-emitting module. The light-emitting module is arranged in the supporting body to form a feature point light source, the control module can control the light-emitting frequency of the light-emitting module, meanwhile, the supporting body is fixed to the anterior shield through the elastic buffering piece, and therefore in the tunneling process, shaking of the anterior shield can provide buffering for feature points so that the feature points can be stably recognized by a camera; meanwhile, when the light-emitting module or the control module of a single feature point breaks down, the light-emitting module or the control module can be replaced independently, and normal work of other feature points cannot be affected.

Description

Technical Field

[0001] The utility model relates to the field of shield tunneling, in particular to a double-shield tunnel boring machine. Background Art

[0002] Double-shield hard rock tunnel boring machines (TBMs) offer high construction efficiency in strata with complex rock properties, high rock strength, and tight turning radii. The cylinders between the support and front shields of a Double-Shield TBM are typically spherical cylinders. This structure creates a large degree of freedom. Calculating the front shield's attitude based on the cylinder's stroke would result in significant errors.

[0003] Currently, binocular or monocular cameras are typically used to identify the front shield's feature points to determine its posture. These feature points are typically fixed and lack vibration damping. Furthermore, they must emit light to be recognized by the camera, and the frequency of their illumination can only be controlled by a centralized module. Damage to this centralized module would affect the functioning of all other feature points, severely delaying construction progress. Summary of the Invention

[0004] Purpose of the invention: This solution provides a dual-shield guide system feature point component that can provide buffering in a fixed manner and can independently control strobe.

[0005] Technical solution: The utility model provides a dual shield guide system feature point component, including:

[0006] A support body, wherein the support body is fixed on the front shield, and an elastic buffer is filled between the support body and the front shield;

[0007] A light emitting module, which is placed inside the support body and provides a light source for forming a characteristic point;

[0008] The control module is electrically connected to the light emitting module and is used to control the light emitting frequency of the light emitting module.

[0009] Furthermore, a bracket is constructed on the front shield, and the support body is fixed on the bracket through fasteners and elastic buffers.

[0010] Furthermore, the elastic buffer member surrounds the fastener, and end surfaces thereof are in contact with the support body and the front shield respectively.

[0011] Furthermore, the bracket is constructed as an L-shaped folding plate, the first plate surface of the folding plate is fixed to the support body, and the second plate surface is limited to the support body.

[0012] Furthermore, a window is constructed on the surface of the support body, and the window is circular.

[0013] Furthermore, the support body is provided with a slot on the surface where the window is located, and the reflective sheet is inserted into the slot.

[0014] Furthermore, a cross mark is provided on the reflective sheet, and the cross mark is aligned with the central axis of the light emitting module.

[0015] Furthermore, the thickness and cross-sectional dimensions of the slot are adapted to those of the reflective sheet.

[0016] Furthermore, the light emitting module is provided with a power supply connector on the surface of the support body.

[0017] Furthermore, the power supply connector has a waterproof seal.

[0018] Beneficial effects: The light-emitting module of the utility model is placed inside the support body to form a characteristic point light source. The control module can control the light-emitting frequency of the light-emitting module. At the same time, the support body is fixed to the front shield through an elastic buffer. Therefore, during the excavation process, the shaking of the front shield can also provide a buffer for the characteristic point so that it can be smoothly recognized by the camera; at the same time, when the light-emitting module or control module of a single characteristic point fails, it can be replaced separately without affecting the normal operation of other characteristic points. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 It is a structural diagram of a reflective sheet. DETAILED DESCRIPTION

[0022] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present invention.

[0024] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0026] A dual-shield guide system characteristic point component includes a support body 1, a light-emitting module and a control module 2. The support body 1 is fixed to the front shield via an elastic buffer 3 and a fastener 4. The light-emitting module is placed inside the support body 1 and provides a light source for forming a light-emitting characteristic point. The control module 2 is electrically connected to the light-emitting module and is used to adjust the light-emitting frequency of the light-emitting module.

[0027] The control module 2 provided by the present invention can be implemented using conventional hardware for controlling light frequency flickering, without limitation. One possible implementation involves using an Arduino Uno microprocessor in conjunction with a resistor and a button 5. The button 5 acts as a speed controller for the flickering frequency. Pressing the button 5 increases the flickering frequency, and the frequency resets when the button is pressed a sufficient number of times. The Arduino Uno microprocessor reads the status of the button 5 at that time and transmits a control signal to the light module to cause the flickering.

[0028] The light-emitting module provided by the present invention generally adopts LED lamps, and the light source can be expanded without limitation.

[0029] The present invention also provides a specific method for securing the support body 1. The support body 1 is mounted to the front shield via fasteners 4. To further simplify installation and prevent damage to the outer surface of the front shield (e.g., perforation), a bracket 6 can be welded to the front shield surface. The support body 1 is then mounted to the bracket 6 via the fasteners 4 to secure it to the front shield. The shape of the bracket 6 should ensure that it provides sufficient support and stability for the support body 1. The present invention provides one possible method for securing the bracket 6 as an L-shaped folded plate. The first plate 601 of the L-shaped folded plate secures the bottom of the support body 1, while the second plate 602 is welded to the front shield and provides a position limiter on the side of the support body 1 to prevent translation and shaking. With this bracket 6 configuration, the support body 1 can be securely mounted on the bracket 6, ensuring relative stability between the support body 1 and the front shield.

[0030] Specifically, to secure the support body 1 and bracket 6, the fastener 4 can be a fixing bolt. The bottom of the support body 1 is threadedly connected to one end of the fixing bolt, and the other end of the fixing bolt is threadedly connected to the bracket 6 on the front shield. An elastic buffer 3 is placed between the support body 1 and the front shield. When the front shield vibrates excessively, the shock-absorbing pad can provide a buffer for the entire feature point assembly, preventing the vibration from causing inaccurate posture of the front shield. The form of the elastic buffer 3 is not limited, and a shock-absorbing pad can generally be used. As shown in the figure, the shock-absorbing pad of the utility model is constructed as an annular shock-absorbing pad surrounding the fixing bolt. The upper and lower end surfaces of the shock-absorbing pad respectively contact the support body 1 and the front shield to maintain the stability of both. To ensure a good shock-absorbing effect, the material of the shock-absorbing pad is changed according to the vibration amplitude parameters of the front shield at the excavation site.

[0031] Specifically, the support body 1 is mounted on the front shield via fixing bolts, and the elastic buffer 3 can be a shock-absorbing pad mounted on the fixing bolts. The shock-absorbing pad is connected to the fixing bolts on one side and bolted to the feature point bracket 6 on the other side. When the front shield vibrates excessively, the shock-absorbing pad cushions the entire feature point assembly, preventing vibration-induced inaccurate front shield posture. To ensure effective shock absorption, the material of the shock-absorbing pad is changed based on the vibration amplitude parameters of the front shield at the excavation site.

[0032] The support body 1 is constructed as a cube, and a window 7 is provided on the surface of the support body 1 for the light of the light emitting module to emit for recognition. In particular, the window 7 is constructed as a circle, which is convenient for the camera to recognize and fit its center coordinates.

[0033] In addition, the surface of the support body 1 where the window 7 is located is configured with a slot 11 for inserting a reflector to block the window 7. A cross mark is provided on the reflector, which is aligned with the center axis of the light-emitting module, and the center coordinates of the light-emitting module can be accurately measured by the cross mark.

[0034] Reflective sheets are generally square, such as Figure 2 As shown, the cross-sectional dimensions of slot 11 are compatible with the reflector. Therefore, once the reflector is inserted into slot 11, the cross mark is guaranteed to coincide with the center of the light module, eliminating the need for repeated adjustment and calibration. Furthermore, the thickness of slot 11 can be adjusted to match the thickness of the reflector. For example, since reflector thickness is generally around 1 mm, the thickness of slot 11 can be set slightly larger than 1 mm. When starting and rechecking the shield posture, the reflector can be inserted into slot 11, and the reflector can be placed in slot 11 to ensure it is in close contact with window 7.

[0035] The light-emitting module is provided with a power supply connector 13 on the surface of the support body 1. Therefore, the light-emitting module can be directly connected to an external power source through the power supply connector 13 to emit light. The power supply connector 13 has a waterproof seal to prevent water from entering the support body 1 when the feature point assembly is used in the rain.

[0036] The control module 2 is connected to the light module via a power supply and communication connector 8. This connection allows the light module to power the control module 2 and control the light module. The power supply and communication connector 8 typically has male and female connectors and includes locating pin holes to facilitate the docking and installation of the control module 2 and light module. Once the control module 2 is connected to the light module via the power supply and communication connector 8, further securing can be achieved. For example, a threaded through-hole 9 is provided at the vertex of the control module 2. Four countersunk bolts are screwed through through-hole 9 and ultimately secured to threaded holes 10 in corresponding locations on the support body 1.

[0037] In order to prevent water from entering the electrical connector 8 , a sealing ring is provided around the electrical connector 8 on the contact surface between the support body 1 and the control module 2 . The sealing ring can be embedded in a sealing ring groove 12 constructed on the support body 1 .

[0038] If there are problems with some modules in the solution of the present invention, the characteristic point components can also be used normally: when there is a problem with the control module 2, it can be directly cancelled and the light-emitting module can be directly switched to constant light use; when the shock-absorbing pad is not needed on site, it can also be directly cancelled; when there is a problem with the light-emitting module, it can be directly replaced, and the control module 2 does not need to be replaced.

[0039] Finally, it should be noted that the above embodiments are intended only to illustrate the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and are intended to be encompassed by the claims of the present invention.

Claims

1. A dual shield guide system feature point component, characterized in that: include: A support body, wherein the support body is fixed on the front shield, and an elastic buffer is filled between the support body and the front shield; A light emitting module, which is placed inside the support body and provides a light source for forming a characteristic point; The control module is electrically connected to the light emitting module and is used to control the light emitting frequency of the light emitting module.

2. The dual shield guide system feature point assembly according to claim 1, characterized in that: A bracket is constructed on the front shield, and the support body is fixed on the bracket through a fastener and an elastic buffer.

3. The dual shield guide system feature point assembly according to claim 2, characterized in that: The elastic buffer member surrounds the fastener, and end surfaces thereof are in contact with the support body and the front shield respectively.

4. The dual shield guide system feature point assembly according to claim 2 or 3, characterized in that: The bracket is constructed as an L-shaped folding plate, wherein the first plate surface of the folding plate is fixed to the support body, and the second plate surface is limited to the support body.

5. The dual shield guide system feature point assembly according to claim 1, characterized in that: A window is configured on the surface of the support body, and the window is circular.

6. The dual shield guide system feature point assembly according to claim 5, characterized in that: The support body is provided with a slot on the surface where the window is located, and the reflective sheet is inserted into the slot.

7. The dual shield guide system feature point assembly according to claim 6, characterized in that: A cross mark is provided on the reflective sheet, and the cross mark is aligned with the central axis of the light emitting module.

8. The dual shield guide system feature point assembly according to claim 6 or 7, characterized in that: The thickness and cross-sectional dimensions of the slot are adapted to those of the reflective sheet.

9. The dual shield guide system feature point assembly according to claim 1, characterized in that: The light emitting module is provided with a power supply connector on the surface of the support body.

10. The dual shield guide system feature point assembly according to claim 9, characterized in that: The power supply connector has a waterproof seal.

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