Narrow pipeline detection lifting mechanism

Abstract

The application discloses a narrow pipeline detection lifting mechanism, which comprises a base and a cable-stayed rod 、 support 、 first driving part 、 first movement part, second movement part, transmission assembly, unhooking assembly and the like, the first driving part is started, the first movement part moves to the left and extends into the deep pipeline, meanwhile, the second movement part is driven by the first movement part and moves along the chute, the cable-stayed rod is gradually pulled up under the horizontal movement of the transmission assembly, thereby providing upward supporting force for the transmission assembly, the support is supported upward, then the unhooking assembly is triggered when the second movement part moves to the bending section of the chute, thereby ending the lifting and supporting process, and meanwhile, the first movement part can continue to move forward into the deep pipeline with the detection equipment under the driving of the first driving part.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pipeline detection equipment, in particular to a narrow pipeline detection lifting mechanism. BACKGROUND

[0002] Many basic industries in China have various kinds of conveying pipelines. Some pipelines have relatively large space, and manual inspection can be carried out. Currently, track-mounted robots have gradually replaced manual inspection. Some pipelines are relatively narrow and have complex internal structures, and personnel cannot enter the pipeline, so only conventional external detection methods can be used to visually inspect the appearance of the pipeline.

[0003] In the prior art, various inspection robots and robotic arms have been used to solve the above problems. Such devices carry a detection head into a narrow pipeline and rely on driving devices and transmission structures to control the movement of the detection head, thereby controlling the detection head to inspect the pipe wall.

[0004] However, after the detection head enters the pipeline, it needs to move in multiple dimensions, such as forward movement, lifting, pitch adjustment, and rotation around the central axis of the pipeline to inspect the pipe wall. Therefore, multiple driving components are often needed to drive movement in each dimension. However, since such devices need to enter the pipeline, multiple signals are needed to control the driving devices, which can cause signal complexity and structural problems. SUMMARY

[0005] The purpose of the present application is to overcome the problems in the prior art and provide a narrow pipeline detection lifting mechanism that uses only one driving device to achieve the lifting, forward movement, and angle adjustment of the detection unit.

[0006] The present application provides a narrow pipeline detection lifting mechanism, comprising:

[0007] a base;

[0008] a diagonal pull rod, the lower end of the diagonal pull rod being hingedly connected to the base;

[0009] a bracket, the bracket comprising a base portion and an extension portion, the base portion being connected to the lower end of the extension portion, the upper end of the diagonal pull rod being hingedly connected to the base portion, the extension portion being provided with a sliding rail and a sliding groove, the sliding rail being horizontally arranged, the sliding rail being located above the sliding groove, the sliding groove having a first section, a second section, and a bent section, the first section and the second section being horizontal, the first section being located to the left of the second section, the first section being higher than the second section, the bent section being connected between the first section and the second section;

[0010] a first driving member, the first driving member being arranged on the bracket;

[0011] The first moving part is slidably connected in the slide rail, and the first driving member is used for driving the first moving part to move along the slide rail;

[0012] The second moving part is movably connected to the lower part of the first moving part, and is slidably connected in the slide groove, and can move along the slide groove;

[0013] The transmission assembly is connected with the inclined pull rod at the lower end thereof;

[0014] The unhooking assembly comprises a sliding piece and a locking hook, the sliding piece is hingedly connected with the transmission assembly, the locking hook is connected with the second moving part, the locking hook can hook the sliding piece, and the second moving part moves to the bent section to change the height of the locking hook, so that the sliding piece is separated / connected with the locking hook.

[0015] Further, the second driving member is connected with the base, and is used for driving the base to rotate around the left-right direction as the axis.

[0016] Further, the transmission assembly comprises a first connecting rod, a second connecting rod and a third connecting rod, the upper end of the first connecting rod is hingedly connected with the unhooking assembly, the lower end of the first connecting rod is hingedly connected with the upper end of the second connecting rod, the upper end of the third connecting rod is hingedly connected with the lower end of the second connecting rod, and the lower end of the third connecting rod is hingedly connected with the inclined pull rod.

[0017] Further, the lower end of the sliding piece is provided with a first locking groove, the right end of the locking hook has an upward protruding part which can enter the first locking groove, the right end of the sliding piece is hingedly connected with the first connecting rod, the sliding piece is slidably connected with the support in the left-right direction, and the left end of the locking hook is connected with the second moving part.

[0018] Further, the self-locking assembly comprises a locking block and a first return spring, the locking block is slidably connected with the support in the vertical direction, the first return spring is connected between the locking block and the first return spring, the first return spring is used for providing the locking block with a vertical downward elastic force, the second moving part is connected with a pushing part which can abut against and support the locking block from below, and the upper part of the sliding piece is provided with a second locking groove, and the locking block can enter the second locking groove.

[0019] Further, the mounting rod and a third moving part are further included, the third moving part is slidably connected in the slide rail in the left-right direction, the left end of the third moving part has an extension rod, the left end of the extension rod is hingedly connected with the right end of the mounting rod, the left end of the first moving part is hingedly connected with a connecting rod, the left end of the connecting rod is hingedly connected with the right end of the mounting rod, and the lower end of the third moving part is hingedly connected with the second moving part, so as to movably connect the second moving part and the first moving part.

[0020] Further, a limiting piece is arranged between the first moving part and the support, and the limiting piece is used for limiting the moving distance of the first moving part in the left-right direction.

[0021] Further, a second reset spring is further included, and the second reset spring is connected between the third moving part and the mounting rod.

[0022] Further, the first driving part includes a first steering wheel and a lead screw, the first steering wheel is arranged at the right end of the support, the lead screw is connected to the output end of the first steering wheel, the first lead screw is in a horizontal state and the two ends thereof are left-right pointing, the first steering wheel is used for driving the first lead screw to rotate, the first moving part and the third moving part are sleeved on the first lead screw, and the first moving part and the third moving part are threadedly connected with the lead screw.

[0023] Further, the second driving part includes a second steering wheel and a rotating shaft, the left end of the rotating shaft is connected to the base, the right end of the rotating shaft is connected to the output end of the second steering wheel, and the rotating shaft is in a horizontal state, and the second steering wheel is used for driving the rotating shaft to rotate.

[0024] Compared with the prior art, the beneficial effects of the present application are as follows: in use, the base is sent to the central axis of the pipeline, the first driving part is started, under the driving of the first driving part, the first moving part moves to the left and extends straight into the deep part of the pipeline, the detection device is arranged at the front end of the first moving part and is also sent into the deep part of the pipeline, at the same time, the second moving part is also moved along the sliding groove under the driving of the first moving part, the movement of the second moving part drives the movement of the transmission assembly, since the lower end of the transmission assembly is connected to the inclined pull rod, under the horizontal movement of the transmission assembly, the inclined pull rod hinged to the transmission assembly is gradually pulled up under the action of the transmission assembly, so as to gradually provide upward supporting force for the transmission assembly from bottom to top, thereby supporting the support provided with the first moving part, the second moving part and the transmission assembly upward, the lifting of the detection device is realized, then when the second moving part moves to the bending section of the sliding groove, the unhooking assembly is triggered, so that the second moving part is disconnected with the transmission assembly, thereby ending the lifting and supporting process, and at this time, the first moving part can still continue to move forward into the deep part of the pipeline under the driving of the first driving part. The beneficial effects of lifting, moving forward and position control of the detection part are realized by using only one driving device. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a complete structure schematic diagram in the present application;

[0026] Figure 2 It is a main structure schematic diagram in the present application;

[0027] Figure 3 It is a partial structure schematic diagram in the present application;

[0028] Figure 4 Part structure schematic diagram in the application.

[0029] Mark explanation:

[0030] 1, base; 2, inclined pull rod; 3, support; 31, sliding rail; 32, sliding groove; 4, first driving part; 51, first moving part; 52, second moving part; 521, pushing part; 53, third moving part; 6, transmission assembly; 61, first connecting rod; 62, second connecting rod; 63, third connecting rod; 71, second steering engine; 81, sliding part; 82, locking hook; 83, locking block; 84, first reset spring; 9, mounting rod; 91, second reset spring. DETAILED DESCRIPTION

[0031] The specific embodiments of the application are described in detail below, but it should be understood that the protection scope of the application is not limited by the specific embodiments. Based on the examples in the application, all other examples obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the application.

[0032] The narrow pipeline detection lifting mechanism provided by the application comprises a base 1, an inclined pull rod 2, a support 3, a first driving part 4, a first moving part 51, a second moving part 52, a transmission assembly 6, an unhooking assembly and the like, wherein the lower end of the inclined pull rod 2 is hingedly connected to the base 1; the support comprises a base part and an extension part, the base part is connected to the lower end of the extension part, the upper end of the inclined pull rod 2 is hingedly connected to the base part, the extension part is provided with a sliding rail 31 and a sliding groove 32, the sliding rail 31 is horizontally arranged, the sliding rail 31 is located above the sliding groove 32, the sliding groove 32 has a first section, a second section and a bending section, the first section and the second section are horizontal, the first section is located on the left side of the second section, the first section is higher than the second section, and the bending section is connected between the first section and the second section; the first driving part 4 is arranged on the support 3; the first moving part 51 is slidingly connected in the sliding rail 31, the first moving part 51 is connected with the first driving part 4, and the first driving part 4 is used for driving the first moving part 51 to move along the sliding rail 31; the second moving part 52 is movably connected to the lower part of the first moving part 51, the second moving part 52 is slidingly connected in the sliding groove 32, and the second moving part 52 can move along the sliding groove 32; the lower end of the transmission assembly 6 is connected with the inclined pull rod 2; the unhooking assembly comprises a sliding part 81 and a locking hook 82, the sliding part 81 is hingedly connected with the transmission assembly 6, the locking hook 82 is connected with the second moving part 52, the locking hook 82 can hook the sliding part 81, and the second moving part 52 moves to the bending section to change the height of the locking hook 82, so that the sliding part 81 and the locking hook 82 are separated / connected.

[0033] Specifically, refer to Figures 1-4In use, the base 1 is sent to the center axis of the pipe, the first driving member 4 is started, the first moving part 51 moves left under the drive of the first driving member 4 and extends straight into the deep pipe, the detection device is installed at the front end of the first moving part 51 and is also sent into the deep pipe, the second moving part 52 also moves along the sliding groove 32 under the drive of the first moving part 51, the second moving part 51 is connected with the locking hook 82 in the unhooking assembly, the sliding member 81 is hinged with the transmission assembly 6, the locking hook 82 still hooks the sliding member 81 at this time, therefore the second moving part 51 can drive the transmission assembly 6 to move through the unhooking assembly, the oblique pull rod is connected with the lower end of the transmission assembly 6, under the horizontal movement of the transmission assembly 6, the oblique pull rod hinged with the transmission assembly 6 is gradually pulled up under the action of the transmission assembly 6, therefore the transmission assembly 6 is gradually provided with upward supporting force from bottom to top, the support 3 provided with the first moving part 51, the second moving part 52 and the transmission assembly 6 is supported upward, the lifting of the detection device is realized, then the unhooking assembly is triggered when the second moving part 52 moves to the bending section of the sliding groove 32, the second moving part 52 is disconnected with the transmission assembly 6, therefore the lifting supporting process is ended, at this time the first moving part 51 can still drive the detection device to continue to move forward in the deep pipe under the drive of the first driving member 4. The beneficial effects of the lifting, forward movement and position control of the detection part are realized by using only one driving device. Inversely, the same effect can also be realized, when the first driving member 4 is reversely driven, the first moving part 51 can retreat and the support 3 can be lowered.

[0034] Further, the second driving member is connected with the base 1 and is used to drive the base 1 to rotate around the left-right direction as the axis. When the lifting of the support 3 and the forward movement of the first moving part 51 with the detection device are completed and the detection device can detect the target pipe wall, the second driving member is started, at this time the second driving member drives the base 1 to rotate, therefore the whole device is rotated in the pipe, because the base 1 is located at the center axis of the pipe, the distance between the detection device and the pipe wall is unchanged during the rotation, therefore the detection device can complete 360-degree detection of the target pipe wall during the rotation. The detection range is further improved.

[0035] Further, please refer to Figure 3, the transmission assembly 6 comprises: a first connecting rod 61, a second connecting rod 62 and a third connecting rod 63, the upper end of the first connecting rod 61 is hingedly connected with the unhooking assembly, the lower end of the first connecting rod 61 is hingedly connected with the upper end of the second connecting rod 62, the upper end of the third connecting rod 63 is hingedly connected with the lower end of the second connecting rod 62, and the lower end of the third connecting rod 63 is hingedly connected with the inclined pull rod 2. When the second moving part 52 is carried forward by the first moving part 51, the unhooking assembly is also in forward motion, thereby driving the upper end of the first connecting rod 61 to move, and under the transmission of the connecting rod mechanism of the first connecting rod 61, the second connecting rod 62 and the third connecting rod 63, the lower end of the third connecting rod 63 will generate an upwardly inclined pulling force at the connection thereof with the inclined pull rod 2, thereby pulling up the inclined pull rod 2, and the lifting process is completed.

[0036] Further, the unhooking assembly comprises: a sliding piece 81 and a locking hook 82, the lower end of the sliding piece 81 is provided with a first locking groove, the right end of the locking hook 82 is provided with an upward protruding portion 821 which can enter the first locking groove, the right end of the sliding piece 81 is hingedly connected with the first connecting rod 61, the sliding piece 81 is slidingly connected with the support 3 along the left-right direction, the left end of the locking hook 82 is connected with the second moving part 52, the sliding groove 32 has a first section and a second section, both of which are horizontal, the first section is located on the left side of the second section, and a bent section is connected between the first section and the second section, and the first section is higher than the second section in the vertical direction. When the second moving part 52 moves to the bent section and reaches the first section, the second moving part 52 will reach a higher position, and in the mechanism as shown in Figure 2 , the lever-type connection will make the locking hook 82 move clockwise, so that the protruding portion 821 is separated from the first locking groove, the connection between the locking hook 82 and the sliding piece 81 is released, thereby releasing the connection between the second moving part 52 and the transmission assembly 6, completing the unhooking action and suspending the lifting movement.

[0037] Further, a self-locking assembly is further included, the self-locking assembly comprises a locking block 83 and a first return spring 84, the locking block 83 is slidingly connected with the support 3 along the vertical direction, the first return spring 84 is connected between the locking block 83 and the first return spring 84, and the first return spring 84 is used to provide the locking block 83 with a vertical downward elastic force, the second moving part 52 is provided with a pushing portion 521 which can abut against and support the locking block 83 from below, and the upper portion of the sliding piece 81 is provided with a second locking groove into which the locking block 83 can enter. Thus, the position of the sliding piece 81 is locked, the position of the first connecting rod 61 connected with the sliding piece 81 is fixed, thereby fixing the positions of the second connecting rod 62 and the third connecting rod 63, and the inclined pull rod 2 is kept stationary, thereby making the height position of the support 3 more stable.

[0038] Further, the mounting rod 9 is connected with a third moving part 53, the third moving part 53 is slidingly connected with the slide rail 31 along the left-right direction, the left end of the third moving part 53 is provided with an extension rod, the left end of the extension rod is hingedly connected with the right end of the mounting rod 9, the left end of the connecting rod is hingedly connected with the right end of the mounting rod 9, and the lower end of the third moving part 53 is hingedly connected with the second moving part 52, so that the movable connection between the second moving part 52 and the first moving part 51 is realized.

[0039] Further, the first moving part 51 is provided with a limiting part for limiting the movement distance of the first moving part 51 along the left-right direction, the third moving part 53 is connected with the first driving part 4, and the first driving part can simultaneously drive the first moving part 51 and the third moving part 53 to move.

[0040] The end of the mounting rod 9 is connected with a detection device, the third moving part 53 can be regarded as being hingedly connected between the first moving part 51 and the second moving part 52, so that the third moving part 53 is driven to move along the slide rail 31 together with the first moving part 51. When moving forward, the third moving part 53 is synchronized with the first moving part 51, so that the connecting rod and the mounting rod 9 hingedly connected between the first moving part 51 and the second moving part 52 are not affected. However, when the first moving part 51 moves to the limiting part and stops moving forward, the third moving part 53 is continuously pushed by the first driving part 4, so that the third moving part 53 gradually deviates from the first moving part 51, and the distance between the first moving part 51 and the third moving part 53 gradually increases. Since the first moving part 51 is stationary, the connecting rod hingedly connected with the first moving part 51 also tends to be stationary, so that the mounting rod 9 hingedly connected with the third moving part 53 is pulled by the connecting rod in the movement, and the mounting rod 9 is gradually pulled to be bent, so that the angle of the mounting rod 9 is changed, and then the detection angle of the detection device arranged at the end of the mounting rod 9 is changed, so that the detection range of the detection device is further expanded.

[0041] Further, the second reset spring 91 is connected between the third moving part 53 and the mounting rod 9, so that the mounting rod 9 is conveniently reset after detection is completed.

[0042] Further, the first driving part 4 comprises a first steering wheel 41 and a lead screw 42, the first steering wheel 41 is arranged at the right end of the support 3, the lead screw 42 is connected with the output end of the first steering wheel 41, the first lead screw 42 is in a horizontal state and the two ends are left-right pointing, the first steering wheel 41 is used for driving the first lead screw 42 to rotate, the first moving part 51 and the third moving part 53 are sleeved on the first lead screw 42, and the first moving part 51 and the third moving part 53 are threadedly connected with the lead screw 42. The driving of the lead screw type has good driving force, and when driving multiple moving parts, the lead screw type can occupy a smaller space.

[0043] Further, the second driving member comprises a second steering wheel 71 and a rotating shaft, the left end of the rotating shaft is connected to the base 1, the right end of the rotating shaft is connected to the output end of the second steering wheel 71, the rotating shaft is in a horizontal state, and the second steering wheel 71 is used for driving the rotating shaft to rotate.

[0044] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A narrow duct inspection lift mechanism, characterized by, The utility model relates to a kind of lifting device, including: Base (1); Cable-stayed rod (2), the lower end of the cable-stayed rod (2) is hinged with the base (1); Support (3), the support includes base part and extension, the base part is connected to the lower end of extension, the upper end of the cable-stayed rod (2) is hinged with base part, the extension is equipped with slide rail (31) and slide groove (32), the slide rail (31) is horizontally arranged, the slide rail (31) is located above slide groove (32), the slide groove (32) has first section, second section and bending section, the first section and second section are horizontal, the first section is located left side of second section, the first section is higher than second section, the bending section is connected between first section and second section; First driving part (4), the first driving part (4) is equipped on support (3); Second driving part, the second driving part is connected with base (1), the second driving part is used to drive base (1) to rotate with left and right direction as axis, the second driving part includes second steering wheel (71) and pivot, the left end of the pivot is connected on base (1), the right end of the pivot is connected on the output end of second steering wheel (71), the pivot is in horizontal state, the second steering wheel (71) is used to drive pivot to rotate; First moving part (51), the first moving part (51) is slidingly connected in slide rail (31), the first moving part (51) is connected with first driving part (4), the first driving part (4) is used to drive first moving part (51) to move along slide rail (31); Second moving part (52), the second moving part (52) is movably connected to the lower part of first moving part (51), the second moving part (52) is slidingly connected in slide groove (32), the second moving part (52) can move along slide groove (32); Mounting rod (9) and third moving part (53), the third moving part (53) is slidingly connected in slide rail (31) along left and right directions, the left end of the third moving part (53) has extension rod, the left end of the extension rod is hinged with the right end of mounting rod (9), the left end of the first moving part (51) is hinged with a connecting rod, the left end of the connecting rod is hinged with the right end of mounting rod (9), the lower end of the third moving part (53) is hinged with second moving part (52) to realize the movable connection between second moving part (52) and first moving part (51); Transmission assembly (6), the lower end of the transmission assembly (6) is connected with cable-stayed rod (2); Unhooking assembly, the unhooking assembly includes sliding element (81) and locking hook (82), sliding element (81) is hinged with transmission assembly (6), locking hook (82) is connected with second moving part (52), locking hook (82) can hook sliding element (81), second moving part (52) moves to bending section to make locking hook (82) height change, so that sliding element (81) is separated / connected with locking hook (82) and ends / begins lifting process. The first moving part (51) is provided with a limiting piece between the support (3), the limiting piece is used for limiting the movement distance of the first moving part (51) in the left-right direction, the third moving part (53) is connected with the first driving part (4), and the first driving part (4) can drive the first moving part (51), the second moving part (52) and the third moving part (53) to move simultaneously.

2. The narrow duct inspection lift mechanism of claim 1, wherein, The transmission assembly (6) comprises a first connecting rod (61), a second connecting rod (62) and a third connecting rod (63), the upper end of the first connecting rod (61) is hingedly connected with the unhooking assembly, the lower end of the first connecting rod (61) is hingedly connected with the upper end of the second connecting rod (62), the upper end of the third connecting rod (63) is hingedly connected with the lower end of the second connecting rod (62), and the lower end of the third connecting rod (63) is hingedly connected with the inclined pull rod (2).

3. A narrow duct inspection lift mechanism as claimed in claim 2, wherein, The lower end of the sliding piece (81) is provided with a first locking groove, the right end of the locking hook (82) has an upward protruding part (821), the protruding part (821) can enter the first locking groove, the right end of the sliding piece (81) is hingedly connected with the first connecting rod (61), the sliding piece (81) is slidingly connected to the support (3) along the left-right direction, and the left end of the locking hook (82) is connected with the second moving part (52).

4. The narrow duct inspection lift mechanism of claim 3, wherein, Further comprising a self-locking assembly, the self-locking assembly comprises a locking block (83) and a first reset spring (84), the locking block (83) is slidingly connected to the support (3) along the vertical direction, the first reset spring (84) is connected between the locking block (83) and the support (3), the first reset spring (84) is used for providing the locking block (83) with a vertically downward elastic force, the second moving part (52) is connected with a pushing part (521), the pushing part (521) can abut against and support the locking block (83) from below of the locking block (83), and the upper part of the sliding piece (81) is provided with a second locking groove, and the locking block (83) can enter the second locking groove.

5. A narrow duct inspection lift mechanism as claimed in claim 4, wherein, Further comprising a second reset spring (91), the second reset spring (91) is connected between the third moving part (53) and the mounting rod (9).

6. A narrow duct inspection lift mechanism as claimed in claim 5, wherein, The first driving part (4) comprises a first steering wheel (41) and a lead screw (42), the first steering wheel (41) is arranged at the right end of the support (3), the lead screw (42) is connected to the output end of the first steering wheel (41), the lead screw (42) is in a horizontal state and the two ends are left-right pointing, the first steering wheel (41) is used for driving the lead screw (42) to rotate, the first moving part (51) and the third moving part (53) are sleeved on the lead screw (42), and the first moving part (51) and the third moving part (53) are in threaded connection with the lead screw (42).

Images