A kind of brake valve overhauls with suspension type conveying line

Abstract

The application relates to the field of brake valve conveying, in particular to a suspension type conveying line for brake valve maintenance, which comprises a conveying mechanism, a sliding rail of the conveying mechanism, a fixing base connected to the top of the sliding rail, a slot formed in the bottom of the sliding rail, a roller arranged on the sliding rail, a motor arranged on the roller, a shell arranged on the motor, a fine adjustment part and a driving part arranged on the shell, and a limiting part arranged on the fine adjustment part; a control mechanism, a hydraulic rod on the inner wall of the shell, a storage box connected to one end of the hydraulic rod, a follow-up part arranged on the storage box, a clamping part arranged on the follow-up part, an extrusion part arranged in the shell; a protection mechanism, a through hole on the storage box, a rotating shaft arranged in the through hole, a turnover plate arranged on the rotating shaft, a pressing-down part arranged on the follow-up part, a cavity and a storage groove arranged on the storage box, and a reset part and a turnover part arranged in the cavity. Through the arrangement of the conveying mechanism, the control mechanism and the protection mechanism, the conveying of the valve body is more convenient and safe.

Description

Technical Field

[0001] This invention relates to the field of braked transportation, and in particular to a suspended conveyor line for brake valve maintenance. Background Technology

[0002] After prolonged use, existing railway freight car brake valves require maintenance to ensure proper operation in subsequent use. This maintenance needs to be performed by different personnel to guarantee the continued use of the railway freight car brake valves.

[0003] During valve body maintenance, the transfer of railway freight car brake valves is quite complicated due to the large number of workers involved. It requires one worker to carry the valve body to another. When multiple workers are transferring valve bodies, there is a risk that the valve body may fall if there is a collision between their limbs. Summary of the Invention

[0004] In view of the problem that the maintenance of the valve body in the above-mentioned or existing technologies is cumbersome due to the large number of workers involved, the present invention is proposed.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a suspended conveyor line for brake valve maintenance, comprising: a transport mechanism including a slide rail, a fixed seat connected to the top of the slide rail, a slot provided at the bottom of the slide rail, rollers provided on the slide rail, a motor provided on the rollers, a housing provided on the motor, a fine-tuning part and a driving part provided on the housing, and a limiting part provided on the fine-tuning part; a control mechanism including a hydraulic rod on the inner wall of the housing, one end of the hydraulic rod being connected to a storage box, a follower part provided on the storage box, a locking part provided on the follower part, and a squeezing part provided inside the housing; and a protective mechanism including a through opening on the storage box, a rotating shaft provided inside the through opening, a flipping plate 38 provided on the rotating shaft, a pressing part provided on the follower part, a chamber and a storage slot provided on the storage box, a reset part and a flipping part provided inside the chamber, and a limiting part provided on the pressing part.

[0006] As a preferred embodiment of the suspended conveyor line for brake valve maintenance of the present invention, the fine-tuning part includes a strip-shaped opening and a rectangular frame on the housing, a first slide rod is provided inside the rectangular frame, a first base is provided on the top of the housing, a second slide rod is provided on the first base, and a first spring and a slider are provided on the second slide rod.

[0007] As a preferred embodiment of the suspended conveyor line for brake valve maintenance of the present invention, the drive unit includes a U-shaped block on the housing, a first limiting block and a second limiting block are installed on the side wall of the U-shaped block, a second base is provided on the housing, a first gear is provided on the second base, and the first gear meshes with the inner wall of the U-shaped block.

[0008] As a preferred embodiment of the suspended conveyor line for brake valve maintenance of the present invention, the limiting part includes a limiting rod on the slider and a lifting tube, a fixing ring is provided on the side wall of the limiting rod, a second spring is provided at the bottom of the fixing ring, and the lifting tube meshes with the first gear.

[0009] As a preferred embodiment of the suspended conveyor line for brake valve maintenance of the present invention, the follower part includes a fixed rod on the inner wall of the storage box, and one end of the fixed rod is connected to a follower rod.

[0010] As a preferred embodiment of the suspended conveyor line for brake valve maintenance of the present invention, the locking part includes a locking rod on the follower rod, a locking block is provided on the locking rod, a cut surface is provided on the locking block, a short rod is connected to the bottom of the U-shaped block, and a locking groove and a recess are provided at the bottom of the short rod.

[0011] As a preferred embodiment of the suspended conveyor line for brake valve maintenance of the present invention, the extrusion part includes an extrusion rod on the inner wall of the housing, one end of the extrusion rod is connected to a ring, the inner wall of the ring is provided with a protrusion, and the snap-fit ​​block is provided with an inclined groove.

[0012] As a preferred embodiment of the suspended conveyor line for brake valve maintenance of the present invention, the lower pressing part includes a port on the follower rod and a third spring, a drive rod is provided on the third spring, and a push rod is provided on the drive rod.

[0013] As a preferred embodiment of the suspended conveyor line for brake valve maintenance of the present invention, the reset part includes a fixing plate inside the chamber, and a fourth spring is provided on the fixing plate.

[0014] As a preferred embodiment of the suspended conveyor line for brake valve maintenance of the present invention, the flipping part includes a pull rope on the drive rod, one end of the pull rope passes through the fixed plate and is connected to a toothed plate, and a second gear is provided on the rotating shaft, the second gear meshing with the toothed plate; the limiting part includes a limiting rod on the drive rod, and a stop block is provided on the limiting rod, the stop block contacting the toothed plate.

[0015] The advantages of the suspended conveyor line for brake valve maintenance of the present invention are as follows:

[0016] 1. Through the setting of the transportation mechanism, control mechanism and protection mechanism, when the machine body moves the storage box to the designated position, the position of the machine body can be fixed during the process of lowering the valve body to prevent the position of the machine body from shifting and affecting the subsequent transportation of the valve body. At the same time, when the bottom of the storage box contacts the worktable, the storage box can be automatically opened to facilitate the staff to take the valve body. When the storage box is separated from the worktable, the storage box can be automatically closed to prevent the valve body from falling out of the storage box during the movement.

[0017] 2. During the rising of the storage box, the restriction on the position of the machine body can be lifted to avoid affecting the subsequent movement of the machine body. During the movement of the machine body, it can prevent the machine body from directly colliding and causing the flip plate 38 to open, thus further protecting the valve body. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a suspended conveyor line for brake valve maintenance.

[0020] Figure 2 This is a schematic diagram of the internal structure of a suspended conveyor line used for brake valve maintenance.

[0021] Figure 3 A cross-sectional view of the casing of a suspended conveyor line for brake valve maintenance.

[0022] Figure 4 Suspended conveyor line for brake valve maintenance Figure 3 Enlarged diagram of point A in the middle.

[0023] Figure 5 A schematic diagram of the clamping block for a suspended conveyor line used for brake valve maintenance.

[0024] Figure 6 A schematic diagram of the extrusion ring of a suspended conveyor line used for brake valve maintenance.

[0025] Figure 7 A schematic diagram of a toothed conveyor for brake valve maintenance.

[0026] In the diagram: 10. Slide rail; 11. Fixed base; 12. Slot; 13. Roller; 14. Motor; 15. Housing; 16. Fine-tuning part; 161. Strip-shaped opening; 162. Rectangular frame; 163. First slide rod; 164. First base; 165. Second slide rod; 166. First spring; 167. Slider; 17. Drive unit; 171. U-shaped block; 172. First limiting block; 173. Second limiting block; 174. Second base; 175. First gear; 18. Limiting part; 181. Limiting rod; 182. Lifting tube; 183. Fixed ring; 184. Second spring;

[0027] 20. Hydraulic rod; 21. Storage box; 22. Follower part; 221. Fixed rod; 222. Follower rod; 23. Snap-fit ​​part; 231. Snap-fit ​​rod; 232. Snap-fit ​​block; 233. Cut surface; 234. Short rod; 235. Snap-fit ​​groove; 236. Groove; 24. Extrusion part; 241. Extrusion rod; 242. Ring; 243. Protrusion; 244. Inclined groove;

[0028] 30. Through-hole; 31. Rotating shaft; 32. Pressing part; 321. Through-hole; 322. Third spring; 323. Drive rod; 324. Push rod; 33. Chamber; 34. Storage slot; 35. Reset part; 351. Fixing plate; 352. Fourth spring; 36. Flipping part; 361. Pull rope; 362. Tooth plate; 363. Second gear; 37. Limiting part; 371. Limiting rod; 372. Abutment block; 38. Flipping plate. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Reference Figures 1 to 7 This invention provides a suspended conveyor line for brake valve maintenance, including a transport mechanism, a control mechanism, and a protective mechanism. When the housing 15 moves to a designated location, it can lock the current position of the housing 15 to prevent the position of the housing 15 from shifting during the loading and unloading of the valve body. When the storage box 21 descends onto the workbench, the storage box 21 can open automatically. When the storage box 21 separates from the workbench, the storage box 21 can close automatically for easy access by the staff. During the movement of the storage box by the housing 15, the storage box 21 can be prevented from opening due to collision, making the movement of the valve body more stable.

[0031] Furthermore, the transport mechanism can transport the valve bodies on each workbench, preventing the housing 15 from moving on the slide rail 10 during the valve body handling process. The mechanism includes the slide rail 10, with a fixed seat 11 connected to the top of the slide rail 10. The fixed seat 11 fixes the slide rail 10 to the ceiling of the room by bolts. The bottom of the slide rail 10 has slots 12, and there are multiple slots 12. The multiple slots 12 are evenly distributed according to the running trajectory of the slide rail 10. The slide rail 10 is equipped with rollers 13, and a motor 14 is equipped on the rollers 13. The motor 14 is equipped with a housing 15, and the housing 15 is equipped with a fine-tuning part 16 and a driving part 17. The fine-tuning part 16 is equipped with a limit part 18.

[0032] When in use, when the motor 14 is started, the motor 14 can drive the roller 13 to move on the slide rail 10. As the roller 13 moves, the roller 13 drives the motor 14 to move, and the motor 14 drives the housing 15 to move.

[0033] Furthermore, the fine-tuning part 16 includes a strip-shaped opening 161 and a rectangular frame 162 on the housing 15. The strip-shaped opening 161 is located at the center of the top of the housing 15, and the rectangular frame 162 is located at the strip-shaped opening 161 and on the inner wall of the housing 15. A first slide rod 163 is provided inside the rectangular frame 162. A first base 164 is provided on the top of the housing 15. A second slide rod 165 is provided on the first base 164. A first spring 166 and a slider 167 are provided on the second slide rod 165. The second slide rod 165 is located above the first slide rod 163. There are two first springs 166. Two second springs 166 are located on both sides of the slider 167. The slider 167 is sleeved on the side wall of the first slide rod 163.

[0034] It should be noted that by setting the first slide bar 163 and the second slide bar 165, the position of the slider 167 can be restricted, so that the slider 167 can slide left and right on the side wall of the first slide bar 163 and the second slide bar 165, so that the position of the slider 167 can be finely adjusted, which facilitates the subsequent locking of the position of the housing 15.

[0035] Furthermore, the drive unit 17 includes a U-shaped block 171 on the housing 15. A first limiting block 172 and a second limiting block 173 are installed on the side wall of the U-shaped block 171. The first limiting block 172 is located above the second limiting block 173. The lifting distance of the U-shaped block 171 is determined by the first limiting block 172 and the second limiting block 173. A second base 174 is provided on the housing 15. A first gear 175 is provided on the second base 174. The first gear 175 meshes with the inner wall of the U-shaped block 171.

[0036] It should be noted that when the U-shaped block 171 is raised or lowered, it can drive the first gear 175 to rotate. When the first limiting block 172 contacts the housing 15, the first gear 175 separates from the U-shaped block 171.

[0037] Furthermore, the limiting part 18 includes a limiting rod 181 and a lifting tube 182 on the slider 167. The lifting tube 182 is sleeved on the side wall of the limiting rod 181. A fixing ring 183 is provided on the side wall of the limiting rod 181. The fixing ring 183 can move up and down on the side wall of the limiting rod 181. The fixing ring 183 is connected to the inner wall of the lifting tube 182. A second spring 184 is provided at the bottom of the fixing ring 183. The lifting tube 182 meshes with the first gear 175.

[0038] It should be noted that the first gear 175 can drive the lifting tube 182 to move up and down. When the first gear 175 separates from the U-shaped block 171, under the restoration of the second spring 184, the second spring 184 drives the fixing ring 183 to rise. The fixing ring 183 drives the lifting tube 182 to move up and down, so that the lifting tube 182 can be inserted into the interior of the slot 12.

[0039] When in use, if the slot 12 and the lifting tube 182 are not aligned when the lifting tube 182 rises to the slot 12, the lifting tube 182 can drive the limiting rod 181 as it rises. The limiting rod 181 drives the slider 167 to slide on the first sliding rod 163 and the second sliding rod 165 for fine adjustment, so that the lifting tube 182 can be fully inserted into the slot 12.

[0040] Furthermore, the control mechanism can control the position of the lifting pipe 182 to drive the valve body to rise and fall, facilitating the operation of the staff. This includes the hydraulic rod 20 on the inner wall of the housing 15. Both the hydraulic rod 20 and the motor 14 are controlled by a controller (the controller is used to control the start of the motor 14 and the hydraulic rod 20. The controller is a common remote control device in the prior art, which will not be described in detail here). One end of the hydraulic rod 20 is connected to a storage box 21. The storage box 21 is provided with a follower part 22. The follower part 22 is provided with a snap-fit ​​part 23. The inside of the housing 15 is provided with a pressing part 24.

[0041] When in use, the staff can put the valve body into the storage box 21, and the storage box 21 will be raised and lowered together by the lifting and lowering of the hydraulic rod 20, so that the staff can easily take it out.

[0042] Furthermore, the follower part 22 includes a fixing rod 221 on the inner wall of the storage box 21. One end of the fixing rod 221 is connected to a follower rod 222. The follower rod 222 is located at the center of the storage box 21, so that the follower rod 222 is located directly below the U-shaped block 171.

[0043] When in use, the fixed rod 221 can move up and down together with the moving rod 222 while the storage box 21 moves up and down.

[0044] Furthermore, the locking part 23 includes two locking rods 231 on the follower rod 222, with a space between the two locking rods 231 for bending. A locking block 232 is provided on the locking rod 231, and a cut surface 233 is provided on the locking block 232. A short rod 234 is connected to the bottom of the U-shaped block 171. A locking groove 235 and a recess 236 are provided at the bottom of the short rod 234. The locking groove 235 and the recess 236 are interconnected, and the recess 236 is located on the side wall of the short rod 234.

[0045] It should be noted that when the second limiting block 173 contacts the inner wall of the housing 15, the locking rod 231 drives the locking block 232 to contact the inner wall of the locking groove 235.

[0046] Furthermore, the extrusion part 24 includes an extrusion rod 241 on the inner wall of the housing 15. One end of the extrusion rod 241 is connected to a ring 242. The ring 242 is located between two extrusion rods 241 and is sleeved on the side wall of the follower rod 222. The inner wall of the ring 242 is provided with a protrusion 243. The width of the protrusion 243 is adapted to the width of the groove 236. The snap-fit ​​block 232 is provided with a slanted groove 244. The width of the slanted groove 244 is adapted to the width of the protrusion 243.

[0047] In use, when the hydraulic rod 20 drives the storage box 21 to descend, the storage box 21 drives the fixing rod 221, the fixing rod 221 drives the follower rod 222, the follower rod 222 drives the locking rod 231, the locking rod 231 drives the locking block 232, the locking block 232 drives the short rod 234, and the short rod 234 drives the U-shaped block 171 to descend, so that the U-shaped block 171 gradually separates from the first gear 175. When the protrusion 243 contacts the inclined groove 244, the protrusion 243 can squeeze the inclined groove 244, so that the two locking blocks 232 drive the locking rod 231 to move closer to each other, thereby making the locking block 232 disengage from the inside of the locking groove 235. At this time, the first limiting block 172 contacts the housing 15, and the U-shaped block 171 is not affected when the hydraulic rod 20 drives the storage box 21 to descend.

[0048] Furthermore, the protective mechanism automatically opens the storage box 21 when the bottom of the storage box 21 contacts the workbench, making it convenient for staff to retrieve the valve body. When the bottom of the storage box 21 separates from the workbench, the storage box 21 automatically closes to prevent the valve body from falling off the storage box 21 during movement. This includes a through-hole 30 on the storage box 21, which is located on the four sides of the storage box 21. A rotating shaft 31 is installed inside the through-hole 30, and a flip plate 38 is installed on the rotating shaft 31 to seal the through-hole 30. A pressing part 32 is installed on the follower part 22. The storage box 21 has a chamber 33 and a storage slot 34, which are interconnected. A reset part 35 and a flip part 36 are installed inside the chamber 33. A limiting part 37 is installed on the pressing part 32.

[0049] When in use, the operator can place the valve body inside the shelf through the through-hole 30.

[0050] Furthermore, the pressing part 32 includes a through-hole 321 on the follower rod 222 and a third spring 322. The third spring 322 is located at the bottom of the follower rod 222. The length direction of the through-hole 321 is parallel to the length direction of the follower rod 222. A drive rod 323 is provided on the third spring 322. One end of the drive rod 323 away from the third spring 322 passes through the bottom of the storage box 21. A top rod 324 is provided on the drive rod 323. The top rod 324 is located at the center of the top of the drive rod 323, and one end of the top rod 324 passes through the through-hole 321 and is located between the two locking blocks 232.

[0051] It should be noted that the two locking blocks 232 will not come into contact with the push rod 324 when they are close to each other.

[0052] Furthermore, the reset part 35 includes a fixing plate 351 inside the chamber 33, and a fourth spring 352 is provided on the fixing plate 351. There are multiple fourth springs 352.

[0053] Furthermore, the flipping part 36 includes a pull rope 361 on the drive rod 323. One end of the pull rope 361 passes through the fixed plate 351 and is connected to the toothed plate 362. The end of the fourth spring 352 away from the fixed plate 351 is connected to the toothed plate 362. A second gear 363 is provided on the rotating shaft 31, and the second gear 363 meshes with the toothed plate 362.

[0054] It should be noted that when the drive rod 323 protrudes from the bottom of the storage box 21, the flip plate 38 seals the through opening 30.

[0055] When in use, when the drive rod 323 is squeezed by the worktable, the drive rod 323 rises, causing the top rod 324 to rise. The drive rod 323 causes the fourth spring to retract, the drive rod 323 drives the pull rope 361, the pull rope 361 drives the toothed plate 362, the toothed plate 362 drives the second gear 363, the second gear 363 drives the rotating shaft 31, and the rotating shaft 31 causes the flip plate 38 to flip, opening the through opening 30. During the movement, the toothed plate 362 causes the fourth spring 352 to retract. When the bottom of the drive rod 323 is horizontal with the bottom of the storage box 21, the flip plate 38 flips 90°.

[0056] Furthermore, the limiting part 37 includes a limiting rod 371 on the drive rod 323, the size of the limiting rod 371 being adapted to the size of the storage slot 34, and a stop block 372 being provided on the limiting rod 371.

[0057] It should be noted that when the stop block 372 is located inside the storage slot 34, there is a certain space between the stop block 372 and the toothed plate 362, so that the stop block 372 can be disengaged from the storage slot 34 when the drive rod 323 rises. When the drive rod 323 is not squeezed, the limiting rod 371 drives the stop block 372 to restrict the toothed plate 362, so as to prevent the toothed plate 362 from being hit and causing the flip plate 38 to flip down, thus preventing the valve body inside the storage box 21 from falling.

[0058] Working principle:

[0059] When the valve body needs to be transported, the hydraulic rod 20 is activated. The hydraulic rod 20 can drive the storage box 21 to descend, the storage box 21 drives the fixing rod 221 to descend, the fixing rod 221 drives the follower rod 222 to descend, the follower rod 222 drives the locking rod 231 to descend, the locking rod 231 drives the locking block 232, the locking block 232 drives the short rod 234, the short rod 234 drives the U-shaped block 171 to descend, the U-shaped block 171 drives the first limit block 172 and the second limit block 173 to descend together, the U-shaped block 171 drives the first gear 175 to rotate, the first gear 175 drives the lifting tube 182 to rise, and as the lifting tube 182 rises, the lifting tube 182 drives the fixing rod 221 to descend. As ring 183 rises, it gradually releases the compression of the second spring 184. When the U-shaped block 171 separates from the first gear 175, the second spring 184 resumes its function, causing the fixed ring 183 to rise. The fixed ring 183 then drives the lifting tube 182 into the slot 12. As the slot 12 is compressed, the lifting tube 182 causes the fixed ring 183 to move laterally. The fixed ring 183 then drives the limiting rod 181, which in turn drives the slider 167 to move on the first slide rod 163 and the second slide rod 165. This allows the lifting tube 182 to be fully inserted into the slot 12, restricting the position of the housing 15 and preventing it from shifting during valve body removal.

[0060] During the process of the U-shaped block 171 driving the first limiting block 172 to contact the housing 15, when the follower rod 222 drives the locking rod 231 to descend, the locking rod 231 drives the locking block 232, and the locking block 232 drives the short rod 234 to descend. When the locking block 232 contacts the protrusion 243, the protrusion 243 drives the two locking blocks 232 to move closer to each other, causing the locking block 232 to disengage from the inside of the locking groove 235. At this time, the follower rod 222 can continue to descend with the fixed rod 221, and the hydraulic rod 20 continues to drive the storage box 21 to descend. During the process of the storage box 21 contacting the worktable, the storage box 21 drives the fixed rod 221 to descend, the fixed rod 221 drives the follower rod 222 to descend, the follower rod 222 drives the drive rod 323 to descend, and the drive rod 323 drives the top rod 324 to separate from the short rod 234. When the workbench contacts the valve, the drive rod 323 rises upward under its action. The drive rod 323 drives the top rod 324 to move upward inside the opening 321. At the same time, the drive rod 323 drives the limiting rod 371 to rise, and the limiting rod 371 drives the stop block 372 to rise, releasing the restriction on the toothed plate 362. The drive rod 323 drives the third spring 322 to retract, and the drive rod 323 drives the pull rope 361. The pull rope 361 drives the toothed plate 362, and the toothed plate 362 drives the fourth spring 352 to retract, causing the toothed plate 362 to drive the second gear 363 to rotate. The second gear 363 drives the rotating shaft 31 to rotate, and the rotating shaft 31 drives the flip plate 38 to flip out from inside the through opening 30. When the drive rod 323 is fully retracted into the storage box 21, the flip plate 38 is horizontal with the bottom of the storage box 21, making it convenient for the staff to place the valve body.

[0061] After the valve body is placed, the operator activates the hydraulic rod 20, which drives the storage box 21. As the storage box 21 rises, the fourth spring 352 and the third spring 322 return to their original positions. The fourth spring 352 drives the toothed plate 362 to move in the opposite direction, and the toothed plate 362 drives the second gear 363 to move, causing the flip plate 38 to flip upwards and reseal the through-hole 30, preventing the valve body from falling during movement. When the flip plate 38 returns to its initial state, the drive rod 323 drives the abutment block 372 to re-enter the storage slot 34. The abutment block 372 restricts the position of the toothed plate 362. As the storage box 21 rises, the fixing rod 221 drives the follower rod 222, which in turn drives the locking rod 231 to rise. The locking rod 231 then drives the locking block 232 to rise. When the drive rod 323 drives the abutment block 372 to re-enter the storage slot 34, the rise of the storage box 21 can drive the abutment block 372 to rise, thus restricting the movement of the valve body. Rod 371 rises, and the limiting rod 371 drives the driving rod 323 to rise. The driving rod 323 drives the top rod 324 to rise. After the locking rod 231 and the top rod 324 pass through the ring 242, the top rod 324 and the locking rod 231 re-enter the interior of the locking groove 235. The locking rod 231 lifts the short rod 234, and the short rod 234 drives the U-shaped block 171 to rise. When the U-shaped block 171 meshes with the first gear 175, the rise of the U-shaped block 171 drives the first gear 175 to rotate. The first gear 175 drives the lifting tube 182 to descend, causing the lifting tube 182 to disengage from the inside of the slot 12, making it easier for the subsequent roller 13 to drive the housing 15 to move. The lifting tube 182 drives the fixing ring 183 to descend, and the fixing ring 183 compresses the second spring 184. When the starting motor 14 moves the position of the housing 15, the housing 15 moves the storage box 21 together, and the storage box 21 moves the valve body. After reaching the designated location, the hydraulic rod 20 is activated to descend and retrieve the item.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A suspended conveyor line for brake valve maintenance, characterized in that: include: The transport mechanism includes a slide rail (10), a fixed seat (11) connected to the top of the slide rail (10), a slot (12) opened at the bottom of the slide rail (10), a roller (13) provided on the slide rail (10), a motor (14) provided on the roller (13), a housing (15) provided on the motor (14), a fine adjustment part (16) and a drive part (17) provided on the housing (15), and a limit part (18) provided on the fine adjustment part (16). The control mechanism includes a hydraulic rod (20) on the inner wall of the housing (15), one end of the hydraulic rod (20) is connected to a storage box (21), a follower (22) is provided on the storage box (21), a snap-fit ​​part (23) is provided on the follower (22), and a squeezing part (24) is provided inside the housing (15). The protective mechanism includes a through-hole (30) on the storage box (21), a rotating shaft (31) is provided inside the through-hole (30), a flip plate (38) is provided on the rotating shaft (31), a pressing part (32) is provided on the follower part (22), a chamber (33) and a storage slot (34) are provided on the storage box (21), a reset part (35) and a flip part (36) are provided inside the chamber (33), and a limiting part (37) is provided on the pressing part (32). The fine-tuning part (16) includes a strip opening (161) and a rectangular frame (162) on the housing (15). A first slide bar (163) is provided inside the rectangular frame (162). A first base (164) is provided on the top of the housing (15). A second slide bar (165) is provided on the first base (164). A first spring (166) and a slider (167) are provided on the second slide bar (165). The drive unit (17) includes a U-shaped block (171) on the housing (15), a first limiting block (172) and a second limiting block (173) are installed on the side wall of the U-shaped block (171), a second base (174) is provided on the housing (15), a first gear (175) is provided on the second base (174), and the first gear (175) meshes with the inner wall of the U-shaped block (171); The limiting part (18) includes a limiting rod (181) on the slider (167) and a lifting tube (182). A fixing ring (183) is provided on the side wall of the limiting rod (181), and a second spring (184) is provided at the bottom of the fixing ring (183). The lifting tube (182) meshes with the first gear (175). The follower part (22) includes a fixing rod (221) on the inner wall of the storage box (21), and one end of the fixing rod (221) is connected to the follower rod (222). The snap-fit ​​part (23) includes a snap-fit ​​rod (231) on the follower rod (222), a snap-fit ​​block (232) is provided on the snap-fit ​​rod (231), a cut surface (233) is provided on the snap-fit ​​block (232), and a short rod (234) is connected to the bottom of the U-shaped block (171). The bottom of the short rod (234) is provided with a snap-fit ​​groove (235) and a recess (236). The extrusion part (24) includes an extrusion rod (241) on the inner wall of the housing (15), one end of the extrusion rod (241) is connected to a ring (242), the inner wall of the ring (242) is provided with a protrusion (243), and the snap-fit ​​block (232) is provided with a slanted groove (244).

2. The suspended conveyor line for brake valve maintenance as described in claim 1, characterized in that: The pressing part (32) includes a through (321) on the follower rod (222) and a third spring (322). A drive rod (323) is provided on the third spring (322), and a push rod (324) is provided on the drive rod (323).

3. The suspended conveyor line for brake valve maintenance as described in claim 2, characterized in that: The reset part (35) includes a fixing plate (351) inside the chamber (33), and a fourth spring (352) is provided on the fixing plate (351).

4. The suspended conveyor line for brake valve maintenance as described in claim 3, characterized in that: The flipping part (36) includes a pull rope (361) on the drive rod (323), one end of the pull rope (361) passes through the fixed plate (351) and is connected to the toothed plate (362), and a second gear (363) is provided on the rotating shaft (31), and the second gear (363) meshes with the toothed plate (362); The limiting part (37) includes a limiting rod (371) on the drive rod (323), and a stop (372) is provided on the limiting rod (371), which contacts the toothed plate (362).

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