A fixing device for tunnel measuring instruments

Abstract

This utility model provides a fixing device for tunnel measuring instruments, relating to the field of tunnel measuring instrument fixing technology. It includes a grooved track along the inner wall of the tunnel, with a locking block slidably mounted on the groove. One side of the locking block has an anti-slip wheel movably mounted and rollingly connected to the bottom of the groove. The other side of the locking block extends horizontally outward near the top edge, with a connecting rope at the bottom edge of the extension. Several upper plates are provided at the bottom end of the connecting rope. The device achieves overall movement of the measuring instrument fixing device through the grooved track along the inner wall of the tunnel and the locking block slidably mounted thereon. During sliding, the locking block can quickly move along the groove to the desired position without removing expansion bolts and then reinstalling them as in existing technologies. This sliding engagement method greatly saves time in adjusting the position of the measuring instrument and improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tunnel measuring instrument fixing technology, and in particular to a tunnel measuring instrument fixing device. Background Technology

[0002] In tunnel engineering, the method of fixing measuring instruments is crucial, as it directly affects the accuracy and reliability of measurements. Therefore, a tunnel measuring instrument fixing device, disclosed in CN222142525U, is proposed. Based on the tunnel lining conditions, a fixing plate is fixed to the tunnel lining using expansion bolts. Expansion bolts are then rotated and connected to the fixing nuts on the expansion rod. The two ends of the expansion rod are then connected to the fixing side plate and connecting plate respectively using fixing bolts. The base bracket is adjusted to be level and balanced. After leveling, the measuring instrument is installed and fixed on the base fixing bolts, ensuring it is tightly tangential to the base bracket. The base screws of the measuring instrument are adjusted to level it. Finally, the power supply and data transmission cables are fixed through the cable holes to ensure safety and reliability.

[0003] However, as tunnel construction progresses, the measuring instruments need to be constantly adjusted. In existing technology, measuring instruments are usually fixed to the tunnel lining with expansion bolts. Adjusting their position requires first removing the expansion bolts, moving the instrument, and then reinstalling the expansion bolts, which is a cumbersome, time-consuming, and labor-intensive process. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing a fixing device for tunnel measuring instruments.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a tunnel measuring instrument fixing device, comprising a groove along the inner wall of the tunnel, a locking block slidably installed on the groove, an anti-slip wheel movably installed on one side of the locking block and rollingly connected to the bottom of the groove, a connecting rope provided at the bottom edge of the other side of the locking block near the top edge, a plurality of upper plates provided at the bottom end of the connecting rope, a lower plate for fixing the measuring instrument installed below each upper plate, a long bolt passing through the other side of the locking block, the stud portion of the long bolt passing through the surface of the locking block and inserting a lifting block, an internal threaded ring rotatably connected to the bottom surface of the lifting block and threadedly connected to the long bolt, an electric telescopic rod movably installed on the side of the lifting block, and a connecting block hinged to the telescopic end of the electric telescopic rod and inserted into the bottom surface of the bottom plate through a pin.

[0006] Preferably, a motor for driving the anti-slip wheel to rotate is inserted into one side of the block, and an electric push rod for driving the motor to lift and lower is inserted into the top edge of one side of the block.

[0007] Preferably, a splicing plate is detachably installed on the other side of the card block by bolts. The splicing plate is slidably connected to the bottom of the outer groove of the wire channel. Several rollers are rotatably connected to both the surface of the splicing plate and the top of the card block.

[0008] Preferably, connecting bolts are provided at the four corners of the opposite surfaces of two adjacent upper and lower plates, with the head of the connecting bolt overlapping the upper surface of the upper plate and the nut of the connecting bolt located on the lower surface of the lower plate.

[0009] Preferably, the surface of the long bolt stud is provided with a planar groove that slides and connects with the surface of the lifting block, and the nut portion of the long bolt abuts against the bottom edge of the extension of the locking block.

[0010] Preferably, the lifting block has a rail inserted perpendicular to the long bolt on its side, and the bottom end of the electric telescopic rod cylinder is fixedly installed on the side of the rail.

[0011] Preferably, the side of the insertion rail is hollowed out, and one side surface of the lifting block is connected to the hollowed-out part of the insertion rail surface by screws.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the device achieves overall movement of the measuring instrument fixing device through a groove set along the inner wall of the tunnel and a locking block slidably installed on it. During the sliding process, the locking block can quickly move along the groove to the desired position, eliminating the need to remove expansion bolts and reinstall them after moving the instrument, as required by existing technologies. This sliding engagement method significantly saves time in adjusting the position of the measuring instrument and improves work efficiency.

[0014] 2. In this utility model, a long bolt is provided through the extension on the other side of the locking block. The stud portion of the long bolt penetrates the surface of the locking block and is inserted into a lifting block. The bottom surface of the lifting block is rotatably connected to an internally threaded ring that is threadedly connected to the long bolt. This structural design allows the lifting block to move up and down on the long bolt via the internally threaded ring, thereby realizing the lifting and lowering adjustment of the connecting rope and the upper and lower plates of the fixed measuring instrument. At the same time, the nut portion of the long bolt abuts against the bottom edge of the extension of the locking block, further enhancing the stability of the structure and ensuring that the measuring instrument is firmly and reliably fixed during the measurement process, and will not loosen due to vibration in the tunnel or other external forces. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a tunnel measuring instrument fixing device;

[0016] Figure 2 This utility model provides a structural schematic diagram of a fixing device block for tunnel measuring instruments;

[0017] Figure 3 This utility model proposes a fixing device for tunnel measuring instruments. Figure 2 A schematic diagram of the right-side view structure;

[0018] Figure 4 This is a schematic diagram of the lifting block of this utility model;

[0019] Figure 5 for Figure 2 The front view plan.

[0020] Legend: 1. Trough; 2. Clip; 3. Long bolt; 4. Splicing plate; 5. Lower plate; 6. Anti-slip wheel; 7. Roller; 8. Insert rail; 9. Upper plate; 10. Connecting bolt; 11. Internal threaded ring; 12. Motor; 13. Electric push rod; 14. Connecting block; 15. Connecting rope; 16. Electric telescopic rod; 17. Lifting block; 18. Flat groove. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] like Figures 1-5 As shown, a tunnel measuring instrument fixing device includes a cable trough 1 concealed along the inner wall of the tunnel. The cable trough 1 is one of the devices required during tunnel construction to house electrical wires. A locking block 2 is slidably installed on the cable trough 1. A splicing plate 4 is detachably installed on the other side of the locking block 2 via bolts. The splicing plate 4 is slidably connected to the bottom of the outer side of the cable trough 1. Several rollers 7 are rotatably connected to both the surface of the splicing plate 4 and the top of the inner side of the locking block 2. The rollers 7 contact the surface of the cable trough 1 and roll to reduce friction, ensuring smooth sliding of the locking block 2. 2. One side is movably installed with an anti-slip wheel 6 that is rolled and connected to the bottom of the groove 1. One side of the locking block 2 is inserted with a motor 12 for driving the anti-slip wheel 6 to rotate, and the top edge of one side of the locking block 2 is inserted with an electric push rod 13 for driving the motor 12 to lift and lower. The motor 12 drives the anti-slip wheel 6 to rotate and roll at the bottom of the groove 1. The friction force is used to move the locking block 2 along the laying path of the groove 1. At the joint of two grooves 1, if there is a height difference, the height can be adjusted by extending and retracting the electric push rod 13 to drive the motor 12 to lift and lower the anti-slip wheel 6.

[0024] On the other side of the card block 2, near the top edge, it extends outward in a horizontal direction and a connecting rope 15 is provided at the bottom edge of the extension. Several upper plates 9 are provided at the bottom of the connecting rope 15. A lower plate 5 for fixing measuring instruments is installed below each upper plate 9. Connecting bolts 10 are installed through the four corners of the opposite surfaces of two adjacent upper plates 9 and lower plates 5. The head of the connecting bolt 10 overlaps with the upper surface of the upper plate 9 and the nut of the connecting bolt 10 is located on the lower surface of the lower plate 5. The upper surface of each lower plate 5 is used to install measuring equipment, while the upper plate 9 can protect the measuring equipment. In addition, according to the actual height of the measuring equipment, the corresponding length of the connecting bolt 10 is selected to pass through the corners of the opposite surfaces of the upper plate 9 and lower plate 5. When the connecting bolt 10 is replaced, the head of the connecting bolt 10 is magnetically attracted to the upper surface of the upper plate 9, which facilitates the fixation of the relative position of the upper plate 9 and the head of the connecting bolt 10. Therefore, by rotating the nut part on the bottom surface of the lower plate 5, the height of the head of the connecting bolt 10 from the lower plate 5 can be adjusted, and the distance between the upper plate 9 and the lower plate 5 can be adjusted.

[0025] Other examples Figure 5 As shown, the upper surface of the upper plate 9 is connected to the lower surface of the lower plate 5 above it by a pin and swings in the left and right direction. The connecting rope 15 can ensure that no matter how much the clamping block 2 is tilted, the flexibility of the connecting rope 15 can ensure that the several lower plates 5 suspended below hang down naturally in a vertical position, thereby ensuring that the installed measuring equipment is vertical and horizontal.

[0026] To prevent the measuring equipment from shaking by pulling on the suspended lower plates 5, a long bolt 3 is also installed through the extension of the other side of the clamping block 2. The stud part of the long bolt 3 passes through the surface of the clamping block 2 and is inserted into the lifting block 17. The nut part of the long bolt 3 abuts against the bottom edge of the extension of the clamping block 2, so as to fix the relative position of the long bolt 3 and the clamping block 2 and prevent the long bolt 3 from shaking. In addition, the long bolt 3 used can be selected and adjusted according to the actual height of the suspended lower plates 5. The surface of the stud of the long bolt 3 is provided with a flat groove 18 that slides and connects with the surface of the lifting block 17. The flat groove 18 ensures that the lifting block 17 can only rise and fall along the surface of the long bolt 3 to below the lowest lower plate 5.

[0027] The bottom surface of the lifting block 17 is rotatably connected to an internally threaded ring 11 that is threadedly connected to the long bolt 3. The threaded connection between the internally threaded ring 11 and the long bolt 3 allows the lifting block 17 to be fixed at any position on the long bolt 3. An electric telescopic rod 16 is movably mounted on the side of the lifting block 17. The telescopic end of the electric telescopic rod 16 is hinged to a connecting block 14 that is inserted into the bottom surface of the lower plate 5 via a pin. When the lower plates 5 are suspended and vertical, the electric telescopic rod 16 extends to move the connecting block 14 directly below the lower plate 5. The pin passes through the connecting block 14 and the lower surface of the lower plate 5. By rotating the internally threaded ring 11, the lifting block 17 is lowered, thus allowing the lifting block to descend. Applying a downward pulling force to the suspended lower plates 5 can prevent the lower plates 5 from shaking. In addition, when the suspended lower plates 5 and the long bolts 3 are not parallel, the connecting block 14 is located directly below the bottom lower plate 5 when the electric telescopic rod 16 is extended. The connecting block 14 is adjusted to swing back and forth to be perpendicular to the lower surface of the bottom lower plate 5 by using the hinge between the connecting block 14 and the telescopic end of the electric telescopic rod 16. Then, the pin can be used to pass through the connecting block 14 and the lower surface of the bottom lower plate 5. By rotating the internal threaded ring 11, the lifting block 17 is pulled down, which can apply a downward pulling force to the suspended lower plates 5 and prevent the lower plates 5 from shaking.

[0028] The lifting block 17 has a rail 8 perpendicular to the long bolt 3 inserted into its side. The bottom end of the cylinder of the electric telescopic rod 16 is fixedly installed on the side of the rail 8. The side of the rail 8 is hollowed out, and one side surface of the lifting block 17 is connected to the hollowed-out surface of the rail 8 by screws. (Refer to...) Figure 5 When the lower plate 5 in the suspended state swings left and right to the point that it is not perpendicular to the insertion rail 8, the lower plate 5 at the bottom position will be misaligned with the lifting block 17. Therefore, the position of the insertion rail 8 is adjusted by inserting the screws on the lifting block 17 and the hollowed-out parts on the insertion rail 8 at different positions. This adjusts the position of the electric telescopic rod 16 connected to the insertion rail 8, so that the connecting block 14 on the telescopic end of the electric telescopic rod 16 moves to below the bottom lower plate 5. A pin is used to pass through the connecting block 14 and the lower surface of the bottom lower plate 5. By rotating the internal threaded ring 11, the lifting block 17 is pulled down, which can apply a downward pulling force to the lower plates 5 in the suspended state, thus preventing the lower plates 5 from shaking.

[0029] The working principle is as follows: select the corresponding number of lower plates 5 and upper plates 9 according to the number of measuring devices used, and adjust the distance between the upper plate 9 and the lower plate 5 according to the height of the measuring devices. Use pins to connect several lower plates 5 in series, and use connecting ropes 15 to make the connected lower plates 5 hang down naturally to keep them in a vertical state. As the tunnel is excavated, the length of the corresponding groove 1 will increase. Use motor 12 to drive anti-slip wheel 6 to rotate and roll at the bottom of groove 1. Use friction to make the locking block 2 move along the laying path of groove 1, so that the measuring devices used can be automatically displaced as the tunnel is excavated.

[0030] The wiring diagrams of the motor 12, electric push rod 13, and electric telescopic rod 16 in this utility model are common knowledge in the field, and their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the motor 12, electric push rod 13, and electric telescopic rod 16 will not be explained in detail.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A tunnel surveying instrument fixing device, characterized in that: The system includes a cable trough (1) running along the inner wall of the tunnel. A locking block (2) is slidably installed on the cable trough (1). One side of the locking block (2) is movably installed with an anti-slip wheel (6) that is rolled and connected to the bottom of the cable trough (1). The other side of the locking block (2) extends outward horizontally near the top edge, and a connecting rope (15) is provided at the bottom edge of the extension. Several upper plates (9) are provided at the bottom end of the connecting rope (15). A lower plate (5) for fixing measuring instruments is installed below each upper plate (9). A long bolt (3) is also provided through the extension of the other side of the card block (2). The stud part of the long bolt (3) penetrates the surface of the card block (2) and is inserted into a lifting block (17). The bottom surface of the lifting block (17) is rotatably connected to an internal threaded ring (11) that is threadedly connected to the long bolt (3). An electric telescopic rod (16) is movably installed on the side of the lifting block (17). The telescopic end of the electric telescopic rod (16) is hinged to a connecting block (14) that is inserted into the bottom surface of the bottom plate (5) through a pin.

2. A tunnel surveying instrument fixing device according to claim 1, characterised in that: A motor (12) for driving the anti-slip wheel (6) to rotate is inserted into one side of the block (2), and an electric push rod (13) for driving the motor (12) to lift is inserted into the top edge of one side of the block (2).

3. A tunnel surveying instrument fixing device according to claim 1, characterised in that: On the other side of the card block (2), a splicing plate (4) is detachably installed by bolts. The splicing plate (4) is slidably connected to the bottom of the outer groove of the wire groove (1). Several rollers (7) are rotatably connected to the surface of the splicing plate (4) and the top of the card block (2).

4. The tunnel surveying instrument fixing device according to claim 1, characterized in that: Connecting bolts (10) are installed through the four corners of the opposite surfaces of two adjacent upper plates (9) and lower plates (5). The head of the connecting bolt (10) overlaps with the upper surface of the upper plate (9), and the nut of the connecting bolt (10) is located on the lower surface of the lower plate (5).

5. The tunnel surveying instrument fixing device according to claim 1, characterized in that: The long bolt (3) has a flat groove (18) on its stud surface that slides with the surface of the lifting block (17), and the nut part of the long bolt (3) abuts against the bottom edge of the extension of the locking block (2).

6. The tunnel surveying instrument fixing device according to claim 1, characterized in that: The lifting block (17) has a rail (8) perpendicular to the long bolt (3) inserted into its side, and the bottom end of the cylinder of the electric telescopic rod (16) is fixedly installed on the side of the rail (8).

7. A tunnel surveying instrument fixing device according to claim 6, characterised in that: The side of the insertion rail (8) is hollowed out, and the surface of one side of the lifting block (17) is connected to the hollowed-out part of the surface of the insertion rail (8) by screws.

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