A multi-functional inspection vehicle for potential safety hazards in subway tunnels

Abstract

The present invention discloses a multifunctional detection vehicle for safety hazards in subway tunnels, which belongs to the field of subway tunnel safety detection. Specifically, the vehicle comprises a mobile vehicle, wherein the upper surface of the mobile vehicle is fixedly connected to a box body, the upper side of the box body is fixedly connected to a profiling mechanism, the profiling mechanism is provided with three detection rods, and the mobile vehicle is provided with a reference device, and the reference device is used to observe the change in the extension length of the detection rods. In the present invention, the balls at the upper end of the detection rods are pressed against the pipe segments. As the mobile vehicle moves, the three balls roll on the inner wall of the pipe segment to detect the pipe segment. When a misalignment is encountered, the balls roll onto the misaligned pipe segment or are directly stopped by a jam, and the corresponding detection rod slides, making it convenient for staff to quickly determine the misalignment hazard of the pipe segment by observing the change in the extension length of the reference device extended from the lower end of the detection rod.

Description

Technical Field

[0001] The invention belongs to the field of subway tunnel safety detection, and in particular relates to a multifunctional subway tunnel safety hazard detection vehicle. Background Art

[0002] The misalignment of a shield tunnel refers to the phenomenon that after the segments are assembled, the inner walls of adjacent segments are not on the same arc surface and shift relative to each other. When the misalignment of the segments develops to a certain extent, it will cause the joint waterproofing strips to fail or even the segments to crack, posing a huge safety hazard to the safe operation of the subway.

[0003] However, in the tunnel, since the top of the tunnel is too high, the staff need to use a ladder to inspect the top, which is very inconvenient to find the misaligned position of the tunnel segments, and there are safety hazards. It is also easy to miss the misaligned position. Summary of the Invention

[0004] The purpose of the present invention is to provide a multifunctional inspection vehicle for safety hazards in subway tunnels, so as to solve the problem that the top of the tunnel is too high and workers need to use ladders to inspect the top, which is very inconvenient to find the wrong platform position, poses a safety hazard, and is also easy to cause the wrong platform position to be missed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A multifunctional detection vehicle for safety hazards in subway tunnels includes a mobile vehicle. The upper surface of the mobile vehicle is fixedly connected to a box body. The upper side of the box body is fixedly connected to a profiling mechanism. The profiling mechanism is provided with three detection rods. The mobile vehicle is provided with a reference device for observing the change in the extended length of the lower end of the detection rod.

[0007] Preferably, the profiling mechanism includes an arc-shaped plate, which is fixedly connected to the upper side of the box body. Three guide sleeves are provided on the side of the box body. The detection rod is slidably connected in the guide sleeve. The upper end of the detection rod is fixedly connected to the contact block. The contact block is rotatably connected to the ball bearings, and the contact block and the guide sleeve are fixedly connected to the support spring.

[0008] Preferably, the arc plate is symmetrically provided with two arc-shaped grooves, and an arc-shaped slider is slidably connected in each arc-shaped groove; wherein the two guide sleeves are fixedly connected to the two arc-shaped sliders in a one-to-one correspondence; another guide sleeve is fixedly connected to the outer side of the middle part of the arc plate, and the outer side of the middle part of the arc plate is rotatably connected to the gear, and the opposite sides of the guide sleeves on both sides are fixedly connected to the arc-shaped racks respectively, and the two arc-shaped racks are symmetrical with the gear as the reference center, and the teeth of the two arc-shaped racks are arranged opposite to each other and are both on the same axis as the arc plate, and the teeth of the two arc-shaped racks cooperate with the gear.

[0009] Preferably, the reference device includes an arc plate, which is fixedly connected to the inner wall of the box body. The arc plate and the curved plate are coaxial, and the arc plate is provided with a through groove, and the detection rod can pass through the through groove.

[0010] Preferably, the upper surface of the mobile vehicle is fixedly connected to two vertical plates, one side of the two vertical plates is rotatably connected to a winding shaft, a torsion spring is provided at the rotational connection between the winding shaft and the vertical plate, the outer circle of the two winding shafts is wrapped around the warning tape, through holes connected to the through groove are provided at both ends of the arc plate, and a socket is provided at the lower end of the detection rod, and the warning tape passes through the through hole, the through groove and the socket in sequence.

[0011] Preferably, two partitions are fixedly connected in the through groove, and the partition is located between two adjacent detection rods.

[0012] Preferably, a limit mechanism is provided on one side of the box body, and the limit mechanism includes an I-shaped slider, a sliding groove is provided on one side of the box body, and the I-shaped slider is slidably connected in the sliding groove, a first spring is fixedly connected between the I-shaped slider and the lower end of the sliding groove, the I-shaped slider is fixedly connected to the cross plate, and a cam is fixedly connected around the outer circle of the reel, and the cam is used to push the cross plate down, and the end of the cross plate away from the cam is fixedly connected to the suspension rod, and the lower end of the suspension rod is slidably connected to the guide tube, and the lower end of the guide tube is a closed structure, and the bottom of the inner hole of the guide tube is fixedly connected to the lower end of the suspension rod with a second spring, and the lower end of the guide tube is fixedly connected to the limit block, and a plurality of slots are arranged at intervals on the outer circle of the traveling wheel of the mobile vehicle, and the limit blocks are arranged corresponding to the slots.

[0013] Technical effects and advantages of the present invention: The multifunctional subway tunnel safety hazard detection vehicle proposed by the present invention has the following advantages over the prior art:

[0014] 1. The present invention uses the support spring to allow the balls at the upper ends of the three detection rods to rest on the pipe segment. As the mobile vehicle moves, the three balls roll on the inner wall of the pipe segment to detect the pipe segment. When a misalignment occurs, the balls roll onto the misaligned pipe segment or are directly stopped by a jam, and the corresponding detection rod slides, making it convenient for staff to quickly judge the hidden dangers of pipe segment misalignment by measuring the change in the extended length of the reference device at the lower end of the detection rod.

[0015] 2. The present invention uses the ball bearing at the upper end of the detection rod to contact the misalignment, and the corresponding detection rod slides, and the lower end of the detection rod pushes the warning tape out of the through-slot, and the warning tape drives the winding shaft to rotate, and the torsion spring stores force to release part of the warning tape from the winding shaft. The staff uses the arc plate as a reference basis and judges whether the misalignment is found by observing whether the warning tape protrudes from the through-slot, which is more eye-catching and avoids omissions, and is convenient for timely marking the position of the misalignment or directly sorting and repairing the misalignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the basic structure of the present invention.

[0017] Figure 2 This is a schematic structural diagram of the profiling mechanism of the present invention.

[0018] Figure 3 This is a schematic structural diagram of the reference device of the present invention.

[0019] Figure 4 This is a schematic structural diagram of the limit mechanism of the present invention. Detailed implementation manners

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1

[0022] The present invention provides a multi-functional detection vehicle for subway tunnel safety hazards as Figure 1-4 shown, which includes a mobile vehicle 1. A box body 2 is fixedly connected to the upper surface of the mobile vehicle 1. A profiling mechanism 3 is fixedly connected to the upper side of the box body 2. The profiling mechanism 3 is provided with three detection rods 33. The mobile vehicle 1 is provided with a reference device 4, and the reference device 4 is used to observe the change in the length of the lower end of the detection rod 33 extending out.

[0023] The present invention is used to detect the dislocation condition of the tunnel lining 10 at the top of the tunnel, reduce the safety hazards of the tunnel. One side of the box body 2 is open, which is convenient for observing the reference device 4. The three detection rods 33 are distributed in a "pin" shape, so that the detection rods 33 can detect from different positions. Through multi-point detection and mutual comparison, it is detected whether the lining 10 has dislocation, making the detection result more comprehensive.

[0024] The mobile vehicle 1 drives the profiling mechanism 3 to move in the tunnel. The profiling mechanism 3 makes the upper ends of the three detection rods 33 abut against the upper wall of the tunnel lining 10 for detection. When one of the detection rods 33 encounters a dislocation, a relatively large sliding amplitude of the corresponding detection rod 33 is observed through the reference device 4. By positioning the lower end of the detection rod 33 with a relatively large sliding amplitude, the dislocation position can be located, and the lining 10 with potential safety hazards can be detected without looking up at the top of the tunnel.

[0025] The profiling mechanism 3 includes an arc-shaped plate 31, which is fixedly connected to the upper side of the box body 2. Three guide sleeves 32 are provided on the side of the box body 2. A detection rod 33 is slidably connected in the guide sleeve 32. The upper end of the detection rod 33 is fixedly connected to a contact block 34. Ball bearings 35 are rotatably connected to the contact block 34. A support spring 36 is fixedly connected between the contact block 34 and the guide sleeve 32.

[0026] like Figure 2 As shown, under the action of the support spring 36, the balls 35 at the upper ends of the three detection rods 33 rest on the pipe segment 10. As the mobile vehicle 1 moves, the three balls 35 roll on the inner wall of the pipe segment 10 to detect the pipe segment 10. When a misalignment occurs, the balls 35 roll onto the misaligned pipe segment 10 or are directly stopped by a jam, and the corresponding detection rod 33 slides, making it convenient for the staff to quickly judge the hidden dangers of misalignment of the pipe segment 10 by extending the length change of the reference device 4 at the lower end of the detection rod 33.

[0027] Two arc-shaped slots 37 are symmetrically provided on the arc-shaped plate 31, and an arc-shaped slider 38 is slidably connected in each arc-shaped slot 37; the two guide sleeves 32 are fixedly connected to the two arc-shaped sliders 38 in a one-to-one correspondence; the other guide sleeve 32 is fixedly connected to the outer side of the middle part of the arc-shaped plate 31, and the outer side of the middle part of the arc-shaped plate 31 is rotatably connected to the gear 39, and the gear 39 is driven to rotate by the motor built into the arc-shaped plate 31. The opposite sides of the guide sleeves 32 on both sides are respectively fixedly connected to the arc-shaped racks 391, and the two arc-shaped racks 391 are symmetrical with respect to the gear 39 as the reference center. The teeth of the two arc-shaped racks 391 are arranged opposite to each other and are both on the same axis as the arc-shaped plate 31, and the teeth of the two arc-shaped racks 391 cooperate with the gear 39.

[0028] The gear 39 controls the arc-shaped sliders 38 on both sides to slide in the arc-shaped slide groove 37 through two arc-shaped racks 391. The arc-shaped sliders 38 drive the detection rods 33 on both sides to slide back and forth. The detection rod 33 in the middle always remains in a vertical state. As the mobile vehicle 1 moves forward, the detection rods 33 on both sides slide back and forth, increasing the detection area of the device to facilitate spot checks of hidden dangers on the tunnel top segment 10 that are not easy to directly detect.

[0029] The reference device 4 includes an arc plate 41, which is fixedly connected to the inner wall of the box body 2. The arc plate 41 and the arc plate 31 are at the same axis. The arc plate 41 is provided with a through groove 42, and the detection rod 33 can pass through the through groove 42. The upper surface of the mobile vehicle 1 is fixedly connected to two vertical plates 43, and one side of the two vertical plates 43 is rotatably connected to the winding shaft 44. A torsion spring is provided at the rotating connection between the winding shaft 44 and the vertical plate 43. Warning tapes 45 are wound around the outer circles of the two winding shafts 44. Through holes connected to the through groove 42 are provided at both ends of the arc plate 41. A socket 47 is provided at the lower end of the detection rod 33. The warning tape 45 passes through the through hole, the through groove 42 and the socket 47 in sequence.

[0030] like Figure 3 As shown, the warning tape 45 passes through the arc plate 41 and the three detection rods 33, so that the lower ends of the three detection rods 33 are located in the grooves 42 of the arc plate 41. Under the action of the torsion spring, the warning tape 45 is in a taut state;

[0031] When the ball 35 at the upper end of the detection rod 33 contacts the misaligned platform, the corresponding detection rod 33 slides, and the lower end of the detection rod 33 pushes the warning tape 45 out of the through-slot 42. The warning tape 45 drives the winding reel 44 to rotate, and the torsion spring stores force, so that part of the warning tape 45 is released from the winding reel 44. The staff uses the arc plate 41 as a reference basis and judges whether the misalignment is found by observing whether the warning tape 45 protrudes through the through-slot 42. This is more eye-catching and avoids omissions, making it convenient to mark the misaligned platform position in time or to directly sort out and repair the misaligned platform.

[0032] After the marking is completed, the mobile vehicle 1 continues to move forward. At this time, the ball 35 leaves the staggered pipe segment, and the torsion spring rotates the reel 44 to rewind the released warning tape 45 and reset the warning tape 45 pushed out by the detection rod 33 to facilitate continued detection.

[0033] Example 2

[0034] In Example 1, when one of the detection rods 33 pushes the warning tape 45 out of the through-slot 42, the warning tape 45 easily pulls the other two detection rods 33, causing the warning tapes 45 at the lower ends of the three detection rods 33 to protrude from the through-slot 42, causing interference. Based on Example 1, two partitions 46 are fixedly connected in the through-slot 42. The partition 46 is located between the two adjacent detection rods 33, and a hole is provided on the partition 46 for the warning tape 45 to pass through.

[0035] Example 3

[0036] like Figure 1 and Figure 4 As shown, a limiting mechanism is provided on one side of the box body 2, and the limiting mechanism includes an I-shaped slider 61. A sliding groove 6 is provided on one side of the box body 2. The I-shaped slider 61 is slidably connected in the sliding groove 6. The I-shaped slider 61 and the lower end of the sliding groove 6 are fixedly connected to the first spring 62. The I-shaped slider 61 is fixedly connected to the cross plate 63, and the outer circle of the reel 44 is fixedly connected to the cam 64. The cam 64 is used to push the cross plate 63 down. The end of the cross plate 63 away from the cam 64 is fixedly connected to the suspension rod 65. The lower end of the suspension rod 65 is slidably connected to the guide tube 66. The lower end of the guide tube 66 is a closed structure. The bottom of the inner hole of the guide tube 66 is fixedly connected to the second spring 67 at the lower end of the suspension rod 65. The lower end of the guide tube 66 is fixedly connected to the limiting block 68. A plurality of slots 69 are arranged at intervals on the outer circle of the traveling wheel 11 of the mobile vehicle 1, and the limiting blocks 68 are arranged corresponding to the slots 69.

[0037] When the hidden danger of misalignment of the pipe segment 10 exceeds the tolerance, that is, when the detection rod 33 pushes the warning tape 45 out of the through groove 42, the corresponding cam 64 rotates passively around the reel 44 to squeeze the cross plate 63 down, and the suspension rod 65 at the end of the cross plate 63 pushes the guide tube 66, and the limit block 68 is attached to the upper side of the traveling wheel 11. When the limit block 68 is aligned with the card slot 69, the traveling wheel 11 is limited to restrict the forward movement of the mobile vehicle 1. The built-in automatic control system of the mobile vehicle 1 recognizes that the resistance of the traveling wheel 11 increases linearly and automatically cuts off the forward power. The suspension technology of the mobile vehicle 1 uses the existing technology, which involves many structures and is not suitable for elaboration here.

[0038] During operation, under the action of the support spring 36, the balls 35 at the upper ends of the three detection rods 33 rest on the pipe segment 10. As the mobile vehicle 1 moves, the three balls 35 roll on the inner wall of the pipe segment 10 to detect the pipe segment 10. When encountering a misalignment, the balls 35 roll onto the misaligned pipe segment 10 or are directly stopped by a jam, and the corresponding detection rod 33 slides, making it convenient for the staff to quickly judge the hidden dangers of misalignment of the pipe segment 10 by extending the length change of the reference device 4 at the lower end of the detection rod 33.

[0039] Furthermore, when the ball 35 at the upper end of the detection rod 33 contacts the misalignment, the corresponding detection rod 33 slides, and the lower end of the detection rod 33 pushes the warning tape 45 out of the through slot 42. The warning tape 45 drives the winding shaft 44 to rotate, and the torsion spring accumulates force, so that part of the warning tape 45 is released from the winding shaft 44. The staff uses the arc plate 41 as a reference basis and judges whether the misalignment is found by observing whether the warning tape 45 protrudes from the through slot 42. This is more eye-catching and avoids omissions, making it convenient to mark the misalignment position in time or directly sort and repair the misalignment.

[0040] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multifunctional vehicle for detecting hidden dangers in subway tunnels, comprising a mobile vehicle (1), characterized in that: The upper surface of the mobile vehicle (1) is fixedly connected to the box body (2), the upper side of the box body (2) is fixedly connected to the profiling mechanism (3), the profiling mechanism (3) is provided with three detection rods (33), and the mobile vehicle (1) is provided with a reference device (4), which is used to observe the change in the extension length of the lower end of the detection rod (33); The profiling mechanism (3) comprises an arc-shaped plate (31), the arc-shaped plate (31) is fixedly connected to the upper side of the box body (2), three guide sleeves (32) are provided on the side of the box body (2), a detection rod (33) is slidably connected in the guide sleeve (32), the upper end of the detection rod (33) is fixedly connected to a contact block (34), a ball bearing (35) is rotatably connected to each of the contact blocks (34), and a support spring (36) is fixedly connected between the contact block (34) and the guide sleeve (32); The arc plate (31) is symmetrically provided with two arc chute (37), and an arc slider (38) is slidably connected in each arc chute (37); wherein the two guide sleeves (32) are fixedly connected to the two arc sliders (38) in a one-to-one correspondence; another guide sleeve (32) is fixedly connected to the outer side of the middle portion of the arc plate (31), and the outer side of the middle portion of the arc plate (31) is rotatably connected to the gear (39), and the opposite sides of the guide sleeves (32) on both sides are respectively fixedly connected to the arc rack (391), and the two arc racks (391) are symmetrical with respect to the gear (39) as the reference center, and the teeth of the two arc racks (391) are arranged opposite to each other and are both on the same axis as the arc plate (31), and the teeth of the two arc racks (391) cooperate with the gear (39); The reference device (4) includes an arc plate (41), the arc plate (41) is fixedly connected to the inner wall of the box body (2), the arc plate (41) and the arc plate (31) are coaxial, the arc plate (41) is provided with a through groove (42), and the detection rod (33) can pass through the through groove (42); The upper surface of the mobile vehicle (1) is fixedly connected to two vertical plates (43), one side of the two vertical plates (43) is rotatably connected to a winding shaft (44), a torsion spring is provided at the rotation connection between the winding shaft (44) and the vertical plate (43), and a warning tape (45) is wound around the outer circle of the two winding shafts (44), through holes communicating with the through slot (42) are provided at both ends of the arc plate (41), and a socket (47) is provided at the lower end of the detection rod (33), and the warning tape (45) passes through the through hole, the through slot (42) and the socket (47) in sequence; Two partitions (46) are fixedly connected in the through groove (42), and the partition (46) is located between two adjacent detection rods (33); A limiting mechanism is provided on one side of the box body (2), the limiting mechanism comprising an I-shaped slider (61), a sliding groove (6) is provided on one side of the box body (2), the I-shaped slider (61) is slidably connected in the sliding groove (6), a first spring (62) is fixedly connected between the I-shaped slider (61) and the lower end of the sliding groove (6), the I-shaped slider (61) is fixedly connected to the transverse plate (63), and the outer circle of the winding shaft (44) is fixedly connected to the cam (64), the cam (64) is used to push the transverse plate (63) down, and the transverse plate (63) is fixedly connected to the outer circle of the winding shaft (44). 3) One end away from the cam (64) is fixedly connected to a suspension rod (65), the lower end of the suspension rod (65) is slidably connected to a guide tube (66), the lower end of the guide tube (66) is in a closed structure, the bottom of the inner hole of the guide tube (66) and the lower end of the suspension rod (65) are fixedly connected to a second spring (67), the lower end of the guide tube (66) is fixedly connected to a limit block (68), a plurality of slots (69) are arranged at intervals on the outer circle of the traveling wheel (11) of the mobile vehicle (1), and the limit blocks (68) are arranged corresponding to the slots (69).

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