A lifting device for a tunnel inspection robot

Abstract

The present invention relates to the field of tunnel inspection, and in particular to a tunnel inspection robot lifting device, comprising at least one lifting bracket, which is symmetrically arranged; at least one fixed guide rail; at least one liftable guide rail, which is detachably connected to both ends of the fixed guide rail; a sliding guide rail, which is connected to the liftable guide rail and moves the liftable guide rail up and down to change the position of the liftable guide rail; a sliding part, which includes a clamping assembly, a gear assembly and a sliding assembly; a positioning part, which is connected between the fixed guide rail and the liftable guide rail, and the positioning part includes a first alignment member arranged on the fixed guide rail, a second alignment member arranged on the liftable guide rail and a first push rod, and the first push rod can extend into or out of the first alignment member and the second alignment member. The present invention has the advantages that it can quickly drive the tunnel inspection robot to change its height, increase the connection stability between the fixed guide rail and the liftable guide rail, and realize rapid alignment.

Description

[Technical field]

[0001] The present invention relates to the field of tunnel inspection, and in particular to a tunnel inspection robot lifting device. [Background technology]

[0002] Urban transportation networks are becoming more and more developed, and high-speed tunnels are also developing rapidly. The quality of tunnels is directly related to the reliability of tunnels during operation. Therefore, urban transportation tunnels and high-speed transportation tunnels often need to be monitored regularly. During the monitoring process, if the guide rails are bent or broken, the lifting device can help maintenance personnel quickly remove the faulty guide rails and update them in time, or help tunnel inspection robots change the shooting height in the vertical direction.

[0003] However, the existing lifting device is easy to derail when sliding, and it is tilted and unstable. In addition, it is difficult to align the lifting rail with the fixed rail after the lifting rail is raised to the position, so that maintenance personnel will spend a lot of time on alignment during replacement, and the work efficiency is low.

[0004] Therefore, a tunnel inspection robot lifting device is proposed, which can quickly drive the tunnel inspection robot to change its height, increase the connection stability between the fixed guide rail and the liftable guide rail, and achieve rapid alignment. [Summary of the invention]

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a tunnel inspection robot lifting device that can quickly drive the tunnel inspection robot to change height, increase the connection stability between the fixed guide rail and the liftable guide rail, and achieve rapid alignment.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A tunnel inspection robot lifting device, comprising:

[0008] At least one lifting bracket, the lifting brackets are symmetrically arranged;

[0009] at least one fixed rail;

[0010] At least one liftable guide rail, detachably connected to both ends of the fixed guide rail;

[0011] A sliding guide rail is connected to the liftable guide rail and moves the liftable guide rail up and down to change the position of the liftable guide rail;

[0012] The sliding part includes a clamping assembly, a gear assembly and a sliding assembly. The clamping assembly and the lifting bracket are mutually engaged to determine the moving position of the liftable guide rail. The gear assembly is located at both ends of the sliding guide rail to prevent the sliding guide rail from derailing. The sliding assembly is located below the sliding guide rail, and the sliding assembly uses a sliding wheel or a sliding rope to drive the liftable guide rail to move up and down.

[0013] A positioning portion connected between the fixed guide rail and the liftable guide rail to position the liftable guide rail to one side of the fixed guide rail;

[0014] Among them, the positioning part includes a first alignment piece arranged on the fixed guide rail, a second alignment piece arranged on the liftable guide rail and a first push rod. The first push rod can extend into or withdraw from the first alignment piece and the second alignment piece. The first alignment piece, the second alignment piece and the first push rod are on the same horizontal line. When the first alignment piece and the second alignment piece are on a straight line, the first push rod passes through the first alignment piece and the second alignment piece to realize the corresponding connection between the liftable guide rail and the fixed guide rail.

[0015] Preferably, the locking assembly includes a rectangular spring, an alignment piece, a pushing piece, and a second push rod. The alignment piece is provided with a through hole, the pushing piece forms a thrust on the second push rod, the lifting bracket is provided with a locking hole, the rectangular spring is located on one side of the alignment piece, and the second push rod passes through the pushing piece, the rectangular spring, the alignment piece, and the locking hole in sequence to fix the position.

[0016] Preferably, the sliding assembly is L-shaped and hollow inside, with at least one sliding wheel provided inside, a fixing plate provided on the outside of the sliding wheel, and at least one fastener provided on the fixing plate to connect with the sliding wheel.

[0017] Preferably, the positioning portion also includes at least one limit assembly, which is arranged at one end of the first push rod, and the limit assembly includes a first connecting plate, on which at least one inclined first waist hole is dug, a fixing piece is passed through the first waist hole, a second connecting plate is provided below the fixing piece, a second waist hole is dug on the second connecting plate, one end of the second connecting plate is rotatably connected to the fixing piece, and the other end is slidably connected to the first push rod through the second waist hole via a sliding rivet.

[0018] Preferably, the fixing member includes a reinforcing rib and a first cylindrical member and a second cylindrical member, a gasket is provided between the first cylindrical member and the reinforcing rib, and the second cylindrical member is fastened to the first connecting plate.

[0019] Preferably, the first push rod reciprocates along the length direction of the liftable guide rail, and the second cylindrical member is a bolt.

[0020] Preferably, a Hall sensor is provided between the first connecting plate and the second connecting plate.

[0021] Preferably, a corresponding adjustable upper limit hard position piece is provided at the upper end of the alignment piece, and a proximity switch is provided on one side of the alignment piece.

[0022] Preferably, an auxiliary support member is provided at the lower end of the fixed support member, and the auxiliary support member includes a triangular plate and two connecting members, and the triangular plate is provided between the connecting members.

[0023] A method for raising and operating a tunnel inspection robot, applied to the above-mentioned tunnel inspection robot lifting device, comprises the following steps:

[0024] Step 1: Turn on the power switch;

[0025] Step 2: Mount the tunnel inspection robot on the liftable guide rail;

[0026] Step 3: Press the up button;

[0027] Step 4: The lifting device automatically rises and pushes out the first push rod to complete the docking of the liftable guide rail and the fixed guide rail;

[0028] Step 5: Use the remote control or background control to control the tunnel inspection robot to move and enter the fixed guide rail.

[0029] The beneficial effects of the present invention are as follows:

[0030] 1. The sliding part includes a locking assembly, a gear assembly and a sliding assembly. The locking assembly and the lifting bracket are locked with each other to determine the final moving position of the liftable guide rail. The gear assembly is located at both ends of the sliding guide rail to limit the sliding guide rail from derailing. The sliding assembly is located below the sliding guide rail, and the sliding assembly uses a sliding wheel or a sliding rope to drive the liftable guide rail to move up and down. In this embodiment, the sliding assembly uses a sliding wheel to slide up and down, and the sliding is fast.

[0031] 2. The positioning part includes a first alignment piece arranged on the fixed guide rail, a second alignment piece arranged on the liftable guide rail and a first push rod. The first push rod is a 1000N thrust push rod. The first push rod can extend into or withdraw from the first alignment piece and the second alignment piece. The first alignment piece, the second alignment piece and the first push rod are on the same horizontal line, and the first alignment piece and the second alignment piece are both provided with holes. A bearing seat is also provided on one side of the first alignment piece and the second alignment piece. The design of the bearing seat, such as the flange part, can reduce vibration transmission. The bearing seat ensures the accurate position of the bearing on the machine and plays a role in precise positioning.

[0032] When the first alignment member and the second alignment member are in a straight line, the first push rod passes through the first alignment member and the second alignment member to realize the corresponding connection between the liftable guide rail and the fixed guide rail, thereby achieving rapid alignment and connection and improving connection efficiency.

[0033] 3. The positioning part also includes at least one limiting component, the limiting component is arranged at one end of the first push rod, and the limiting component includes a first connecting plate, the first connecting plate is dug with at least one inclined first waist hole, the first waist hole is penetrated by a fixing piece, a second connecting plate is arranged below the fixing piece, and the second connecting plate is dug with a second waist hole, one end of the second connecting plate is rotatably connected to the fixing piece, and the other end is slidably connected to the first push rod through the second waist hole through a sliding rivet. When the first push rod is pushed toward the first alignment piece, the sliding rivet is also driven by the first push rod to rotate to the left side, thereby forming a rightward pulling force on the first push rod to prevent the first push rod from being excessively pushed and causing an imbalance in the center of gravity. When the first push rod moves away from the first alignment piece, the sliding rivet is also driven by the first push rod to rotate to the right side, thereby forming a leftward pulling force on the first push rod, thereby playing a buffering role. At the same time, a guide is formed for the entry and exit of the first push rod to prevent the first push rod from being misplaced in and out and causing a collision with the first alignment piece and the second alignment piece.

[0034] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0035] The present invention will be further described below in conjunction with the accompanying drawings:

[0036] Figure 1 This is an overall schematic diagram of a lifting device according to Embodiment 1 of the present invention;

[0037] Figure 2 It is a schematic diagram of the positioning part;

[0038] Figure 3 is a schematic diagram of a snap-fit ​​assembly;

[0039] Figure 4 A schematic diagram of the hole arrangement;

[0040] Figure 5 It is a schematic diagram of the positioning hole;

[0041] Figure 6 Schematic diagram of the sliding assembly. [Specific implementation method]

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] The following first describes the concepts involved in this application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of this application easier to understand and does not limit the scope of protection of this application.

[0044] Embodiment 1:

[0045] A tunnel inspection robot lifting device, such as Figure 1 As shown, including:

[0046] At least one lifting bracket 1, the lifting brackets 1 are symmetrically arranged. In this embodiment, there are two lifting brackets 1, and the lifting brackets 1 occupy a small area in the horizontal direction, so when used in the tunnel, it is not easy to cause obstacles to vehicles traveling in the narrow tunnel;

[0047] At least one fixed guide rail 2. In this embodiment, there are two fixed guide rails 2.

[0048] At least one liftable guide rail 3, detachably connected to both ends of the fixed guide rails 2. In this embodiment, there is only one liftable guide rail 3, which is located between the fixed guide rails 2;

[0049] The sliding guide rail 4 is connected to the liftable guide rail 3, and the liftable guide rail 3 is moved up and down to change the position of the liftable guide rail 3. A connecting device is provided between the sliding guide rail 4 and the liftable guide rail 3 for magnetic connection or fixed connection. The connecting device includes a fixing plate at both ends respectively connected to the liftable guide rail 3 and the sliding guide rail 4. A connecting block is provided between the fixing plates, and a reinforcing block is provided above the connecting block to facilitate improving the stability of the liftable guide rail 3 moving up and down.

[0050] The sliding part 5 includes a locking assembly 6, a gear assembly 7 and a sliding assembly 8. The locking assembly 6 and the lifting bracket 1 are locked with each other to determine the final moving position of the liftable guide rail 3. The gear assembly 7 is located at both ends of the sliding guide rail 4 to limit the sliding guide rail 4 from derailing. The sliding assembly 8 is located below the sliding guide rail 4, and the sliding assembly 8 uses a sliding wheel 801 or a sliding rope to drive the liftable guide rail 3 to move up and down. In this embodiment, the sliding assembly 8 uses the sliding wheel 801 to slide up and down, and the sliding is fast.

[0051] A positioning portion 9 connected between the fixed guide rail 2 and the liftable guide rail 3 to position the liftable guide rail 3 to one side of the fixed guide rail 2. The positioning portion 9 is used to align the fixed guide rail 2 with the liftable guide rail 3;

[0052] Among them, Figure 2As shown, the positioning part 9 includes a first alignment member 901 arranged on the fixed guide rail 2, a second alignment member 902 arranged on the liftable guide rail 3 and a first push rod 903. The first push rod 903 is a 1000N thrust push rod. The first push rod 903 can extend into or withdraw from the first alignment member 901 and the second alignment member 902. The first alignment member 901, the second alignment member 902 and the first push rod 903 are on the same horizontal line, and the first alignment member 901 and the second alignment member 902 are both provided with holes. A bearing seat is also provided on one side of the first alignment member 901 and the second alignment member 902. The design of the bearing seat, such as the flange part, can reduce vibration transmission. The bearing seat ensures the accurate position of the bearing on the machine and plays a role in precise positioning.

[0053] When the first alignment member 901 and the second alignment member 902 are in a straight line, the first push rod 903 passes through the first alignment member 901 and the second alignment member to realize the corresponding connection between the liftable guide rail 3 and the fixed guide rail 2, thereby achieving rapid alignment and connection and improving connection efficiency.

[0054] like Figures 3 to 5 As shown, the locking assembly 6 includes a rectangular spring 601, an alignment piece 602, a pushing piece 603, and a second push rod 604. The alignment piece 602 is provided with a through hole 605. The pushing piece 603 forms a thrust on the second push rod 604. The lifting bracket 1 is provided with a locking hole 606. The rectangular spring 601 is located on one side of the alignment piece 602, and a gasket is provided between the rectangular spring 601 and the alignment piece 602. The gasket effectively reduces the wear of the rectangular spring 601 on the alignment piece 602 during stretching and compression, and the second push rod 604 passes through the pushing piece 603, the rectangular spring 601, the alignment piece 602, and the locking hole 606 in sequence to fix the position. When the locking is achieved, the push-pull piece forms a thrust on the second push rod 604, and then the second push rod 604 passes through the alignment piece 602 and the locking hole 606 in sequence to achieve efficient locking.

[0055] like Figure 6 As shown, the sliding assembly 8 is L-shaped and hollow inside, with one end supporting the sliding guide rail 4 to improve the clamping stability of the sliding guide rail 4. At least one sliding wheel 801 is provided inside, and a fixing plate 802 is provided on the outside of the sliding wheel 801. The fixing plate 802 is provided with at least one fastener 803 connected to the sliding wheel 801. The fastener 803 also serves as the central rotating axis of the sliding wheel 801, killing two birds with one stone, providing a fixing effect and serving as a rotation center.

[0056] The positioning portion 9 also includes at least one limiting assembly 904, which is arranged at one end of the first push rod 903, and the limiting assembly 904 includes a first connecting plate 905, on which at least one inclined first waist hole 906 is dug, and a fixing piece 907 is passed through the first waist hole 906, and a second connecting plate 908 is provided below the fixing piece 907, and a second waist hole 909 is dug on the second connecting plate 908, one end of the second connecting plate 908 is rotatably connected to the fixing piece 907, and the other end is slidably connected to the first push rod 903 through the second waist hole 909 through the sliding rivet 910, when the first push rod 90 When the first push rod 903 is pushed toward the first alignment member 901, the sliding rivet 910 is also driven by the first push rod 903 to rotate to the left, forming a rightward pulling force on the first push rod 903 to prevent the first push rod 903 from being over-pushed and causing an imbalance in the center of gravity. When the first push rod 903 moves away from the first alignment member 901, the sliding rivet 910 is also driven by the first push rod 903 to rotate to the right, forming a leftward pulling force on the first push rod 903, playing a buffering role, and at the same time forming a guide for the entry and exit of the first push rod 903 to prevent the first push rod 903 from being misplaced and entering and exiting, causing a collision with the first alignment member 901 and the second alignment member 902.

[0057] The fixing member 907 includes a reinforcing rib 9071, a first cylindrical member 9072 and a second cylindrical member 9073. A gasket 9074 is provided between the first cylindrical member 9072 and the reinforcing rib 9071. The gasket 9074 increases the tightness of the connection between the first cylindrical member 9072 and the reinforcing rib 9071. The second cylindrical member 9073 is tightly connected to the first connecting plate 905, which further consolidates the connection between the first connecting plate 905 and the reinforcing rib 9071.

[0058] The first push rod 903 reciprocates along the length direction of the liftable guide rail 3, and the second cylindrical member 9073 is bolted and threadedly connected, with high connection tightness.

[0059] A Hall sensor 10 is provided between the first connecting plate 905 and the second connecting plate 908. When the first connecting plate 905 and the second connecting plate 908 are in a misaligned state, the Hall sensor 10 fails to detect a signal or the signal is weak, and outputs a high level or a low level; when the first connecting plate 905 and the second connecting plate 908 are in an aligned state, the Hall sensor 10 detects a signal and outputs a low level or a high level, thereby determining whether the first connecting plate 905 and the second connecting plate 908 are aligned.

[0060] A corresponding adjustable upper limit hard position piece 11 is provided at the upper end of the alignment piece 602, which effectively sets the highest height position of the sliding guide rail 4 to prevent the sliding guide rail 4 from sliding out, and a proximity switch 12 is provided on one side of the alignment piece 602. The proximity switch 12 has a similar function to the Hall sensor 10. When the sliding guide rail 4 and the alignment piece 602 are not in a close state, the proximity switch 12 fails to detect a signal or the signal is weak, and outputs a high level or a low level; when the sliding guide rail 4 and the alignment piece 602 are in a close state, the proximity switch 12 detects a signal and outputs a low level or a high level, thereby determining whether the sliding guide rail 4 and the alignment piece 602 are close to each other, effectively preventing the sliding guide rail 4 from sliding out and causing an accident.

[0061] An auxiliary support member 13 is provided at the lower end of the fixed support member. The auxiliary support member 13 includes a triangular plate 1301 and two connecting members 1302. The triangular plate 1301 is arranged between the connecting members 1302. The triangular stability is the strongest to form a supporting force to prevent the lifting bracket 1 from collapsing.

[0062] A method for raising and operating a tunnel inspection robot, applied to the above-mentioned tunnel inspection robot lifting device, comprises the following steps:

[0063] Step 1: Turn on the power switch;

[0064] Step 2: Mount the tunnel inspection robot on the liftable guide rail 3;

[0065] Step 3: Press the up button;

[0066] Step 4: The lifting device automatically rises and pushes out the first push rod 903 to complete the docking of the liftable guide rail 3 and the fixed guide rail 2;

[0067] Step 5: Control the tunnel inspection robot to move onto the fixed guide rail 2 through the remote control or background control.

[0068] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A tunnel inspection robot lifting device, characterized in that: include At least one lifting bracket, wherein the lifting bracket is symmetrically arranged; at least one fixed rail; At least one liftable guide rail, detachably connected to both ends of the fixed guide rail; A sliding guide rail, wherein the sliding guide rail is connected to the liftable guide rail and moves the liftable guide rail up and down to change the position of the liftable guide rail; The sliding part includes a clamping assembly, a gear assembly and a sliding assembly, wherein the clamping assembly and the lifting bracket are mutually engaged to determine the moving position of the liftable guide rail, the gear assembly is located at both ends of the sliding guide rail to limit the sliding guide rail from derailing, the sliding assembly is located below the sliding guide rail, and the sliding assembly uses a sliding wheel or a sliding rope to drive the liftable guide rail to move up and down; a positioning portion connected between the fixed guide rail and the liftable guide rail to position the liftable guide rail to one side of the fixed guide rail; Wherein, the positioning part includes a first alignment piece arranged on the fixed guide rail, a second alignment piece arranged on the liftable guide rail and a first push rod, the first push rod can extend into or withdraw from the first alignment piece and the second alignment piece, the first alignment piece, the second alignment piece and the first push rod are on the same horizontal line, when the first alignment piece and the second alignment piece are on a straight line, the first push rod passes through the first alignment piece and the second alignment piece to realize the corresponding connection between the liftable guide rail and the fixed guide rail.

2. A tunnel inspection robot lifting device as claimed in claim 1, characterized in that: The locking assembly includes a rectangular spring, an alignment piece, a pushing piece, and a second push rod. The alignment piece is provided with a through hole, and the pushing piece forms a thrust on the second push rod. The lifting bracket is provided with a locking hole. The rectangular spring is located on one side of the alignment piece, and the second push rod passes through the pushing piece, the rectangular spring, the alignment piece, and the locking hole in sequence to fix the position.

3. A tunnel inspection robot lifting device as claimed in claim 1, characterized in that: The sliding assembly is L-shaped and hollow inside, and is provided with at least one sliding wheel inside. A fixing plate is provided on the outside of the sliding wheel, and the fixing plate is provided with at least one fastener connected to the sliding wheel.

4. A tunnel inspection robot lifting device as claimed in claim 1, characterized in that: The positioning portion also includes at least one limiting component, which is arranged at one end of the first push rod, and the limiting component includes a first connecting plate, at least one inclined first waist hole is dug on the first connecting plate, a fixing piece is passed through the first waist hole, a second connecting plate is provided below the fixing piece, a second waist hole is dug on the second connecting plate, one end of the second connecting plate is rotatably connected to the fixing piece, and the other end is slidably connected to the first push rod through the second waist hole via a sliding rivet.

5. A tunnel inspection robot lifting device as claimed in claim 4, characterized in that: The fixing member includes a reinforcing rib, a first cylindrical member, and a second cylindrical member. A gasket is provided between the first cylindrical member and the reinforcing rib, and the second cylindrical member is fastened to the first connecting plate.

6. A tunnel inspection robot lifting device as claimed in claim 4, characterized in that: The first push rod reciprocates along the length direction of the liftable guide rail, and the second cylindrical member is a bolt.

7. The tunnel inspection robot lifting device according to claim 5, characterized in that: A Hall sensor is provided between the first connecting plate and the second connecting plate.

8. The tunnel inspection robot lifting device according to claim 2, characterized in that: A corresponding adjustable upper limit hard position piece is arranged at the upper end of the alignment piece, and a proximity switch is arranged at one side of the alignment piece.

9. The tunnel inspection robot lifting device according to claim 1, characterized in that: An auxiliary support member is provided at the lower end of the fixed support member. The auxiliary support member includes a triangular plate and two connecting members. The triangular plate is provided between the connecting members.

10. A method for raising and operating a tunnel inspection robot, applied to a tunnel inspection robot lifting device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Turn on the power switch; Step 2: Mount the tunnel inspection robot on the liftable guide rail; Step 3: Press the up button; Step 4: The lifting device automatically rises and pushes out the first push rod to complete the docking of the liftable guide rail and the fixed guide rail; Step 5: Use the remote control or background control to control the tunnel inspection robot to move and enter the fixed guide rail.

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