CN218819437U

CN218819437U - Piping lane inspection device with downhill path deceleration function

Info

Publication number: CN218819437U
Application number: CN202222658644.2U
Authority: CN
Inventors: 汤培勇; 莫海春; 孔文芊; 钱学明
Original assignee: Changxing Yunshang Technology Co ltd
Current assignee: Changxing Yunshang Technology Co ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-04-07
Anticipated expiration: 2032-10-10

Abstract

The utility model discloses a piping lane inspection device with downhill path speed reduction function relates to piping lane control field. The lower slope section of the I-shaped sliding rail is fixedly connected with a C-shaped sliding rail, and the upper surface of the C-shaped sliding rail, which is close to the lower end, is provided with a unhooking assembly; both sides all are provided with T shape frame around the I-shaped slide rail, and T shape frame rolls through a plurality of rolling guide pulleys and hangs and establish on the I-shaped slide rail, and two T shape frame bottoms are provided with patrols and examines the robot body, and T shape frame articulates there is the couple, and the right side of couple is provided with first spring, still contains the slider, and the slider front end is fixed with hangs the tongue, and the slider right-hand member is provided with the rope, and I-shaped slide rail right-hand member outside position is provided with the direction subassembly for the rope direction. The utility model discloses can utilize the heavy object to pin down the speed of patrolling and examining robot body downhill path when the downhill path, also reduce because inertia and damage the risk of patrolling and examining robot body inner member when being convenient for to downhill path section circuit investigation.

Description

Piping lane inspection device with downhill path deceleration function

Technical Field

The utility model relates to a piping lane control field, concretely relates to piping lane inspection device with downhill path speed reduction function.

Background

Along with the development of cities, the application of urban comprehensive pipe galleries is more and more, but the comprehensive pipe gallery is a semi-closed space, the internal lines are numerous, the space is closed or other toxic gases exist, the danger of manual inspection is high, in order to ensure the safety of inspectors, the device for inspecting the pipe gallery is produced, a person can be replaced to inspect whether the lines in the pipe gallery are normal, the inspection device usually adopts a pipe gallery inspection robot with a camera to inspect, the top wall in a pipe gallery channel is provided with a sliding guide rail, a guide wheel is arranged above the pipe gallery inspection robot, the pipe gallery inspection robot advances and retreats on the sliding guide rail at the bottom of the sliding guide rail through the guide wheel, then the lines on two sides are inspected through the camera of the robot, the inspected problem can be sent to a worker, and the worker repairs the problem part subsequently; and the slip guide rail in the pipe gallery can not set up along with the level always in the reality, often along with the undulation on road surface, inside pipe gallery slip guide rail also has downhill path section, the uphill path section of slope, when pipe gallery inspection robot moved to the downhill path section of slip guide rail, can make downhill path speed very fast owing to do not have the subassembly of supplementary speed reduction brake, not only be difficult to investigate the circuit of downhill path section left and right sides, also probably cause the damage to inspection robot body internals owing to the inertia of downhill path.

Disclosure of Invention

For solving above technical problem, the utility model discloses a main objective provides a piping lane inspection device with downhill path speed reduction function, the utility model discloses can utilize the heavy object to come the speed that the restriction patrolled and examined robot body downhill path investigation when the downhill path, be convenient for also reduce because inertia and damage the risk of patrolling and examining robot body inner member when patrolling and examining the downhill path section circuit investigation.

In order to achieve the purpose, the utility model adopts the following technical scheme to solve the problem.

A pipe rack inspection device with a downhill speed reduction function comprises an I-shaped slide rail, wherein the I-shaped slide rail comprises a downhill section with a lower left part and a higher right part and also comprises a horizontal section on the left side of the downhill section, a C-shaped slide rail with a forward opening is fixedly connected to the front side of the top end of the downhill section of the I-shaped slide rail, and a unhooking assembly is arranged on the upper surface, close to the lower end, of the C-shaped slide rail; the inspection robot comprises an I-shaped sliding rail, a plurality of T-shaped frames and a plurality of rolling guide wheels, wherein the front side and the rear side of the I-shaped sliding rail are respectively provided with a T-shaped frame, the T-shaped frames are hung on the I-shaped sliding rail in a rolling manner through the rolling guide wheels, the bottoms of the two T-shaped frames are provided with an inspection robot body, the inspection robot body is fixedly connected with the two T-shaped frames, the front side of the T-shaped frame at the front side is hinged with a hook which is hooked towards the left side, the right side of the hook is provided with a first spring, the left end of the first spring is fixedly connected with the hook, and the other end of the first spring is fixedly connected with the T-shaped frame; the sliding block is arranged in the C-shaped sliding rail, a rope is arranged at the right end of the sliding block, the left end of the rope is fixedly connected with the sliding block, the other end of the rope is fixedly connected with a counterweight column, and a guide assembly for guiding the rope is arranged at the outer side of the right end of the I-shaped sliding rail; the front end of the sliding block is fixedly connected with a hanging tongue, the front end of the hanging tongue extends out of the C-shaped sliding rail, and the left side of the hook can be buckled with the right side of the hanging tongue.

Furthermore, the unhooking assembly comprises a vertical plate, a connecting plate is fixedly connected to the front end of the vertical plate, a vertically-arranged threaded rod is inserted into the connecting plate in a penetrating manner and is in threaded connection with the vertical plate, an unhooking resisting rod is hinged to the front end of the left side of the connecting plate, a roller is hinged to the end portion of the right side of the unhooking resisting rod, the roller can be in contact with the top of the left side of the hook, a resisting plate is fixedly connected to the rear end of the unhooking resisting rod, a limiting spring is fixedly connected to the top end of the resisting plate, the top end of the limiting spring is fixedly connected with the bottom end of the connecting plate, and the bottom end of the threaded rod is abutted to the upper surface of the resisting plate; when the left side of the hook is in contact with the right side of the roller, the hook rotates clockwise, so that the hook is separated from the hanging tongue.

Further, the direction subassembly includes that the axis sets up along the first fixed pulley of vertical direction, the second fixed pulley that the axis set up along the horizontal direction, first fixed pulley the second fixed pulley all is located the upper segment position of the downhill path section of C font slide rail, the second fixed pulley is located the rear side position of first fixed pulley and both all with C font slide rail fixed connection, the rope is walked around respectively first fixed pulley the second fixed pulley.

Furthermore, the C-shaped sliding rail is close to the bottom end face of the inner wall on one side of the unhooking assembly, a through groove is formed in the bottom end face of the inner wall on the bottom of the C-shaped sliding rail, the through groove is internally provided with a clamping lock, the clamping lock assembly comprises a rotating rod which is high at the left side and low at the right side, the rotating rod is arranged in the through groove, the middle of the rotating rod is hinged to the C-shaped sliding rail, the left end of the top of the rotating rod is arranged in the C-shaped sliding rail, the right end of the bottom of the rotating rod is fixedly connected with an arc-shaped contact plate, the bottom of the arc-shaped contact plate is arranged outside the lower end of the C-shaped sliding rail, a compression spring is arranged on the lower surface of the left half section of the rotating rod, the top end of the compression spring is fixedly connected with the rotating rod, a support plate is fixedly connected with the bottom end of the compression spring, the support plate is arranged in the through groove, the front end and the rear end of the C-shaped sliding rail are fixedly connected with the T-shaped sliding rail, an unlocking connecting rod is arranged on the left side of the hook, the unlocking connecting rod is fixedly connected with the upper surface of the T-shaped frame, an unlocking wheel is arranged on the top end of the T-shaped frame, and the unlocking wheel, the top of the unlocking wheel is attached to the outer surface of the C-shaped sliding rail.

Furthermore, the bottom end of the second fixed pulley is fixedly connected with a sliding cylinder, and the counterweight column is arranged in the sliding cylinder and is connected with the sliding cylinder in a sliding manner.

Furthermore, an arc-shaped abutting block is fixedly connected to the left end of the top of the rotating rod.

The utility model discloses technical scheme the utility model discloses can utilize the heavy object to come the control to patrol and examine the speed that robot body downhill path when the downhill path, also reduced because inertia and damaged the risk of patrolling and examining this internal component of robot in the downhill path circuit investigation of being convenient for.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a horizontal arrangement structure of a front side view angle of the hook of the present invention in an unhooked state;

FIG. 3 is a schematic view of a part of the structure of the hook of the present invention in a state after the hook is unhooked;

fig. 4 is a schematic structural view of the slider in a depression angle;

FIG. 5 is an enlarged view of portion A of FIG. 1;

FIG. 6 is an enlarged view of portion B of FIG. 2;

FIG. 7 is an enlarged view of portion C of FIG. 3;

fig. 8 is an enlarged view of a portion D in fig. 2.

In the above figures: 1. an I-shaped slide rail; 11. a T-shaped frame; 12. a rolling guide wheel; 13. the inspection robot body; 14. hooking; 15. a first spring; 16. a slider; 17. a rope; 18. a counterweight column; 19. hanging the tongue; 2. a C-shaped slide rail; 21. a through groove; 3. a unhooking assembly; 31. a vertical plate; 32. a connecting plate; 33. a threaded rod; 34. a roller; 35. a butt joint plate; 36. a limiting spring; 37. unhooking the abutting rod; 4. a guide assembly; 41. a first fixed pulley; 42. a second fixed pulley; 43. a sliding cylinder; 5. a latch assembly; 51. a rotating rod; 52. an arc-shaped abutting block; 53. an arc-shaped contact plate; 54. a compression spring; 55. a support plate; 56. unlocking the connecting rod; 57. and unlocking the wheels.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of other ways than those described herein, and those skilled in the art will be able to make similar generalizations without departing from the spirit of the invention. The invention is therefore not limited to the specific embodiments disclosed below.

Referring to fig. 1, 2, 3 and 4, the pipe gallery inspection device with the downhill speed reduction function comprises an i-shaped slide rail 1, wherein the i-shaped slide rail 1 comprises a downhill section with a lower left and a higher right and also comprises a horizontal section at the left side of the downhill section, a C-shaped slide rail 2 with a forward opening is fixedly connected to the front side of the top end of the downhill section of the i-shaped slide rail 1, and a unhooking assembly 3 is arranged on the upper surface of the C-shaped slide rail 2, which is close to the lower end; the front side and the rear side of the I-shaped sliding rail 1 are respectively provided with a T-shaped frame 11, the T-shaped frames 11 are hung on the I-shaped sliding rail 1 in a rolling manner through a plurality of rolling guide wheels 12, the bottoms of the two T-shaped frames 11 are provided with an inspection robot body 13, the inspection robot body 13 is fixedly connected with the two T-shaped frames 11, the front side of the T-shaped frame 11 is hinged with a hook 14 which is hooked to the left, the right side of the hook 14 is provided with a first spring 15, the left end of the first spring 15 is fixedly connected with the hook 14, and the other end of the first spring 15 is fixedly connected with the T-shaped frames 11; the sliding block 16 is arranged in the C-shaped sliding rail 2, a rope 17 is arranged at the right end of the sliding block 16, the left end of the rope 17 is fixedly connected with the sliding block 16, the other end of the rope 17 is fixedly connected with a counterweight column 18, and a guide assembly 4 for guiding the rope 17 is arranged at the outer side of the right end of the I-shaped sliding rail 1; the front end of the sliding block 16 is fixedly connected with a hanging tongue 19, the front end of the hanging tongue 19 extends out of the C-shaped sliding rail 2, and the left side of the hook 14 can be buckled with the right side of the hanging tongue 19.

In the above embodiments, the pipe rack has a horizontal section, a downward slope section and an upward slope section along with the fluctuation of the pipe rack, the i-shaped slide rail 1 is arranged on the top wall of the pipe rack along the pipe rack, so that the pipe rack also has a horizontal section, a downward slope section and an upward slope section, the two T-shaped frames 11 are hung on the i-shaped slide rail 1 through the rolling guide wheels 12 and can slide left and right along the i-shaped slide rail 1, so as to drive the inspection robot body 13 to move synchronously, the inspection robot body 13 can use its own camera to inspect the connection line passing through the route, the hook 14 can rotate clockwise and counterclockwise on the T-shaped frame 11, the first spring 15 can limit and reset the hook 14, when the hook 14 is not stressed, the hook 14 is in an initial state, specifically, the hook 14 slightly inclines to the left side when in the initial state, so as to avoid the left and right rotation of the hook 14, when the hook 14 is stressed in the right and downward direction, the hook 14 rotates clockwise on the T-shaped frame 11, the hook 14 can also enable the first spring 15 to be in a compressed state, when the hook 14 is not stressed, the first spring 15 can also enable the hook 14 to restore to an initial state by utilizing the self elastic force, when the hook 14 is stressed leftwards and downwards, the hook 14 can rotate anticlockwise, the first spring 15 can also be in an elongated state, when the hook 14 is not stressed, the spring can utilize the self restoring tension to pull the hook 14 to enable the hook 14 to be in the initial state, the arranged C-shaped slide rail 2 can realize the sliding of the slider 16 therein, the sliding of the slider 16 can also drive the synchronous movement of the hanging tongue 19, when the inspection robot body 13 enters a downhill section, the left inner wall of the hook 14 can be buckled with the right end part of the hanging tongue 19, at the moment, the slider 16 can utilize the rope 17 to give a certain reverse tension to the hook 14 through the gravity of the counterweight column 18, the inspection robot body 13 can move more stably at a downhill section to play a role of speed reduction and braking, the hook 14 can be abutted by the unhooking assembly 3 arranged at the tail end close to the downhill section, the inspection robot body 13 can be separated from the restraint of the hanging tongue 19 when being positioned at the tail position of the downhill section, the inspection robot body 13 is about to enter a horizontal section at the moment, so that the speed is not required to be reduced, the hook 14 rotates clockwise on the T-shaped frame 11 under the action of rightward abutting force, and the hook 14 can be separated from the hanging tongue 19.

Further, referring to fig. 2 and 6, the unhooking component 3 includes a vertical plate 31, a connecting plate 32 is fixedly connected to the front end of the vertical plate 31, a vertically arranged threaded rod 33 is inserted through the connecting plate 32 and is in threaded connection with the connecting plate, a unhooking abutting rod 37 is hinged to the front end of the left side of the connecting plate 32, a roller 34 is hinged to the right side end of the unhooking abutting rod 37, the roller 34 can contact with the top of the left side of the hook 14, a abutting plate 35 is fixedly connected to the rear end of the unhooking abutting rod 37, a limit spring 36 is fixedly connected to the top end of the abutting plate 35, the top end of the limit spring 36 is fixedly connected to the bottom end of the connecting plate 32, and the bottom end of the threaded rod 33 abuts against the upper surface of the abutting plate 35; when the left side of the hook 14 is in contact with the right side of the roller 34, the hook 14 rotates clockwise, so that the hook 14 is disengaged from the hanging tongue 19.

In the above embodiment, the vertical plate 31 is arranged to support the connecting plate 32, the threaded rod 33 is screwed on the connecting plate 32 through the threaded connection between the threaded rod 33 and the connecting plate 32, when the threaded rod 33 is rotated, the threaded rod 33 can rotate on the connecting plate 32, so that vertical displacement can be achieved, angular rotation can be achieved on the front side of the connecting plate 32 through the arranged unhooking abutting rod 37, the arranged roller 34 can abut against the left side portion of the hook 14, the arranged limiting spring 36 can play a role in connecting the connecting plate 32 and the abutting plate 35, when force is not applied to the unhooking abutting rod 37, an arbitrary rotation angle cannot be achieved, the bottom end of the threaded rod 33 abuts against the abutting plate 35, when the threaded rod 33 can be rotated, the threaded rod 33 can vertically move upwards and downwards, at this time, the angles of the unhooking abutting rod 37 and the roller 34 can be adjusted at will be convenient, contact between the roller 34 and the hook 14 is convenient to unhooking, when the hook 14 approaches the roller 34, the hook 14 can provide a right side contact with the right side of the roller 34, the hook 14 can drive the hook 14 to rotate on the T-shaped frame 11, when the hook 14 rotates clockwise, the hook 14 can be restored to rotate clockwise, and the left side abutting plate 14, and the hook 14 can be restored to the left side, the left side abutting plate 14, and the hook 14, the hook 14 can be restored, and the roller 14, and the hook 14 can be rotated, the hook 14, the roller 14, the hook 14 can be rotated, the hook 14.

Further, referring to fig. 1, 2 and 5, the guide assembly 4 includes a first fixed pulley 41 whose axis is disposed along a vertical direction, and a second fixed pulley 42 whose axis is disposed along a horizontal direction, the first fixed pulley 41 and the second fixed pulley 42 are both located at an upper position of a downward slope section of the C-shaped slide rail 2, the second fixed pulley 42 is located at a rear position of the first fixed pulley 41 and both are fixedly connected to the C-shaped slide rail 2, and the rope 17 respectively passes around the first fixed pulley 41 and the second fixed pulley 42.

In the above embodiment, the effect of guiding the rope 17 to the right rear side of the i-shaped sliding rail 1 can be realized by the aid of the arranged first fixed pulley 41, the traction direction of the rope 17 is changed, the rope 17 can be changed from the horizontal traction direction to the vertical downward direction by the aid of the arranged second fixed pulley 42, so that the effect that the counterweight column 18 is far away from the i-shaped sliding rail 1 can be realized, and when the inspection robot body 13 moves towards the lower left corner, the counterweight column 18 and the inspection robot body 13 are prevented from interfering with each other.

Further, referring to fig. 6, 7 and 8, a through groove 21 is formed in a bottom end surface of one side of the inner wall of the C-shaped slide rail 2 close to the unhooking assembly 3, a locking assembly 5 for locking the slider 16 is arranged in the through groove 21, the locking assembly 5 includes a rotating rod 51 with a high left end and a low right end, the rotating rod 51 is arranged in the through groove 21, the middle of the rotating rod is hinged to the C-shaped slide rail 2, the left end of the top of the rotating rod 51 is arranged in the C-shaped slide rail 2, the right end of the bottom of the rotating rod 51 is fixedly connected with an arc contact plate 53, the bottom of the arc contact plate 53 is arranged outside the lower end of the C-shaped slide rail 2, a compression spring 54 is arranged on the lower surface of the left half section of the rotating rod 51, the top end of the compression spring 54 is fixedly connected with the rotating rod 51, a support plate 55 is fixedly connected to the bottom end of the compression spring 54, the support plate 55 is arranged in the through groove 21, the front end and the rear end of the C-shaped slide rail 2 are fixedly connected with an unlocking connecting rod 56, and an unlocking wheel 57 is arranged on the top of the T-shaped slide rail 11.

In the above embodiment, the latch assembly 5 is arranged to lock the position of the slider 16, so that when the slider 16 and the tongue 19 slide to the end position of the downhill section along with the hook 14, and after the hook 14 is unhooked from the tongue 19, the slider 16 slides to the right initial position under the action of the gravity of the counterweight column 18, and at this time, the right bottom position of the slider 16 is resisted by the rotating rod 51, so that the slider 16 and the tongue 19 are no longer reset, wherein the compression spring 54 is arranged to exert a limiting and resetting effect on the rotating rod 51, the rotating rod 51 can rotate in the through slot 21, but the supporting plate 55 is arranged to exert a limiting effect on the rotating rod 51, so that the rotating rod 51 cannot rotate clockwise but only rotate counterclockwise, and after the rotating rod 51 rotates counterclockwise, the rotating rod 51 no longer bears against the slider 16, as shown in fig. 3, which is a schematic view of cross-sectional views of the slider 16 and the tongue 19, at this time, the slide block 16 is reset by sliding rightward under the influence of the counterweight column 18, the unlocking connecting rod 56 is arranged to support the unlocking wheel 57, the arc-shaped contact plate 53 is arranged to contact with the arc-shaped contact plate 53 when the unlocking wheel 57 moves to the left, the unlocking wheel 57 gives an upward force to the arc-shaped contact plate 53, so that the rotating rod 51 rotates counterclockwise, after the inspection robot body 13 moves from a horizontal section to a downward slope section, the hook 14 is blocked by the hanging tongue 19 to rotate counterclockwise on the T-shaped frame 11, the hook 14 slides rightward at the bottom of the hanging tongue 19, when the hook 14 passes over the hanging tongue 19, the unlocking wheel 57 rolling rightward just contacts with the arc-shaped contact plate 53 and gives an upward pressure to the arc-shaped contact plate 53, at this time, the rotating rod 51 rotates counterclockwise, the slide block 16 which is always locked at a position is in an unlocking state at this time, therefore, the inspection robot can slide to the right side, the sliding block 16 can drive the hanging tongue 19 to be buckled with the hook 14 again, the traction force which is pulled upwards by the inspection robot body 13 can be given by matching the gravity of the balancing weight, the power is given by the gravity, and the environment-friendly effect of saving electricity is achieved.

Further, referring to fig. 1 and 2, a sliding cylinder 43 is fixedly connected to a bottom end of the second fixed pulley 42, and the counterweight column 18 is disposed in the sliding cylinder 43 and is slidably connected to the sliding cylinder 43.

In the above embodiment, the sliding cylinder 43 can slide with the counterweight column 18, and meanwhile, the guiding and limiting effects can be achieved for the counterweight column 18, so that the counterweight column 18 is prevented from swinging left and right when moving up and down.

Further, referring to fig. 6 and 7, an arc-shaped abutting block 52 is fixedly connected to the left end of the top of the rotating rod 51.

In the above embodiment, by providing the arc-shaped abutting rod 52, the rigid friction between the rotating rod 51 and the slider 16 when rotating counterclockwise can be avoided.

Although the invention has been described in detail in this specification with reference to specific embodiments and illustrative embodiments, it will be apparent to those skilled in the art that certain changes and modifications can be made therein without departing from the scope of the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides a piping lane inspection device with downhill path deceleration function which characterized in that: the hook comprises an I-shaped sliding rail (1), wherein the I-shaped sliding rail (1) comprises a downhill section with a lower left and a higher right and also comprises a horizontal section at the left side of the downhill section, a C-shaped sliding rail (2) with a forward opening is fixedly connected to the front side of the top end of the downhill section of the I-shaped sliding rail (1), and a unhooking assembly (3) is arranged on the upper surface of the C-shaped sliding rail (2) close to the lower end;

the front side and the rear side of the I-shaped sliding rail (1) are respectively provided with a T-shaped frame (11), the T-shaped frames (11) are hung on the I-shaped sliding rail (1) in a rolling manner through a plurality of rolling guide wheels (12), the bottoms of the two T-shaped frames (11) are provided with an inspection robot body (13), the inspection robot body (13) is fixedly connected with the two T-shaped frames (11), the front side of the T-shaped frame (11) at the front side is hinged with a hook (14) which is hooked to the left, the right side of the hook (14) is provided with a first spring (15), the left end of the first spring (15) is fixedly connected with the hook (14), and the other end of the first spring is fixedly connected with the T-shaped frame (11);

the sliding block (16) is arranged in the C-shaped sliding rail (2), a rope (17) is arranged at the right end of the sliding block (16), the left end of the rope (17) is fixedly connected with the sliding block (16), the other end of the rope (17) is fixedly connected with a counterweight column (18), and a guide assembly (4) for guiding the rope (17) is arranged at the outer side of the right end of the I-shaped sliding rail (1); the front end of the sliding block (16) is fixedly connected with a hanging tongue (19), the front end of the hanging tongue (19) extends out of the C-shaped sliding rail (2), and the left side of the hook (14) can be buckled with the right side of the hanging tongue (19).

2. The pipe rack inspection device with the downhill speed reducing function according to claim 1, wherein the unhooking component (3) comprises a vertical plate (31), a connecting plate (32) is fixedly connected to the front end of the vertical plate (31), a vertically arranged threaded rod (33) is inserted through the connecting plate (32) and is in threaded connection with the vertical plate, an unhooking resisting rod (37) is hinged to the front end of the left side of the connecting plate (32), a roller (34) is hinged to the end portion of the right side of the unhooking resisting rod (37), the roller (34) can be in contact with the top of the left side of the hook (14), a resisting plate (35) is fixedly connected to the rear end of the unhooking resisting rod (37), a limiting spring (36) is fixedly connected to the top end of the resisting plate (35), the top end of the limiting spring (36) is fixedly connected to the bottom end of the connecting plate (32), and the bottom end of the threaded rod (33) is in contact with the upper surface of the resisting plate (35); when the left side of the hook (14) is in contact with the right side of the roller (34), the hook (14) rotates clockwise, so that the hook (14) is separated from the hanging tongue (19).

3. The pipe rack inspection device with downhill deceleration function of claim 1, characterized in that, direction subassembly (4) include axis along vertical direction set up first fixed pulley (41), axis along horizontal direction set up second fixed pulley (42), first fixed pulley (41), second fixed pulley (42) all are located the upper segment position of the downhill path section of C font slide rail (2), second fixed pulley (42) are located the rear side position of first fixed pulley (41) and both all with C font slide rail (2) fixed connection, rope (17) are walked around respectively first fixed pulley (41), second fixed pulley (42).

4. The pipe rack inspection device with the downhill speed reduction function according to claim 2, wherein a through groove (21) is formed in the bottom end face of the inner wall of one side, close to the unhooking assembly (3), of the C-shaped slide rail (2), a locking assembly (5) for locking the slide block (16) is arranged in the through groove (21), the locking assembly (5) comprises a rotating rod (51) which is high at the left and low at the right, the rotating rod (51) is arranged in the through groove (21) and the middle of the rotating rod is hinged to the C-shaped slide rail (2), the left end of the top of the rotating rod (51) is arranged in the C-shaped slide rail (2), an arc-shaped contact plate (53) is fixedly connected to the right end of the bottom of the rotating rod (51), the bottom of the arc-shaped contact plate (53) is arranged outside the lower end of the C-shaped slide rail (2), a compression spring (54) is arranged on the lower surface of the left half section of the rotating rod (51), the top of the compression spring (54) is fixedly connected to the rotating rod (51), a support plate (55) is fixedly connected to the front end of the T-shaped slide rail (11), and a front and rear end of the unlocking connecting rod (56) is arranged in the through groove (11), and the unlocking rack (55), and the unlocking rack (11) are arranged on the front and rear end of the unlocking rack (11), and rear rack (11), and front of the unlocking rack (11), and rear rack (5) are arranged on the rack (11), and on the rack (5) And an unlocking wheel (57) is arranged at the top end of the unlocking connecting rod (56), and the top of the unlocking wheel (57) is attached to the outer surface of the bottom end of the C-shaped sliding rail (2) to roll.

5. The pipe gallery inspection device with the downhill deceleration function of claim 3, wherein a sliding cylinder (43) is fixedly connected to the bottom end of the second fixed pulley (42), and the counterweight column (18) is arranged in the sliding cylinder (43) and is in sliding connection with the sliding cylinder.

6. The pipe gallery inspection device with the downhill decelerating function according to claim 4, wherein an arc-shaped abutting block (52) is fixedly connected to the left end of the top of the rotating rod (51).