A foldable mobile gantry hanger

Abstract

The present invention discloses a foldable movable gantry hanger, which is installed on a truck compartment. The foldable movable gantry hanger includes a hanger body, a translational lifting mechanism, a track, a support frame and a folding drive mechanism. The hanger body is connected to the support frame; the hanger body can move horizontally relative to the track; the translational lifting mechanism is arranged on the hanger body, and the track is laid on both sides of the compartment; the folding drive mechanism is respectively connected to the hanger body and the support frame, and is used to respectively control the hanger body or the support frame to be in an unfolded and / or stored state, so that the hanger body moves horizontally relative to the track when unfolded or folds at the front end of the compartment when stored; the support frame moves out of the track when unfolded to be supported on the ground or is stored in the track when stored. The present invention has a high degree of automation and good safety; it is easy to use and improves work efficiency; it does not occupy space when stored and saves truck compartment space.

Description

Technical Field

[0001] The invention relates to the technical field of lifting equipment, and in particular discloses a foldable and movable gantry hanger. Background Art

[0002] Gantry crane is a kind of lifting gantry crane developed according to the daily production needs of small and medium-sized factories (companies) to carry equipment, warehouse goods in and out, lift and repair heavy equipment and transport materials. It is suitable for mold manufacturing, auto repair factories, mines, construction sites and other places where lifting is required. However, gantry cranes usually adopt fixed foldable mobile gantry cranes, which cannot be folded, occupy a large space and cannot be installed on trucks.

[0003] Therefore, the existing gantry hanger occupies a large space and cannot be installed on a truck, which is a technical problem that needs to be solved urgently. Summary of the invention

[0004] The invention provides a foldable movable gantry hanger, aiming to solve the technical problems that the existing gantry hanger occupies a large space and cannot be installed on a truck.

[0005] The present invention provides a foldable movable gantry hanger, which is installed on a carriage of a truck. The foldable movable gantry hanger comprises a hanger body, a translational lifting mechanism, a track, a support frame and a folding drive mechanism, wherein the hanger body is connected to the support frame; the hanger body can move horizontally relative to the track; the translational lifting mechanism is arranged on the hanger body, and the track is laid on both sides of the carriage; the folding drive mechanism is respectively connected to the hanger body and the support frame, and is used for respectively controlling the foldable movable gantry hanger or the support frame to be in an unfolding and / or storage state, so that the hanger body moves horizontally relative to the track when unfolding or is folded at the front end of the carriage when being stored; and the support frame moves out of the track to be supported on the ground when unfolding or is stored in the track when being stored.

[0006] Furthermore, the hanger body is provided with a load-bearing rod, a support rod, and a gantry folding mechanism connected between the load-bearing rod and the support rod, the gantry folding mechanism includes a first rotating arm provided on the end of the load-bearing rod, a second rotating arm provided on the end of the support rod, and a first rotating shaft and a folding drive assembly installed on the first rotating arm and the second rotating arm, the folding drive assembly includes a folding gear provided at the first rotating arm, a folding worm provided at the second rotating arm and matched with the folding gear, a reducer connected to the folding worm, and a folding drive motor connected to the reducer.

[0007] Furthermore, the gantry folding mechanism also includes a worm locking assembly arranged below the folding worm for locking the foldable movable gantry hanger when the foldable movable gantry hanger is in an extended state, the worm locking assembly including a first worm locking block, a second worm locking block, a first locking elastic member and a second locking elastic member, the folding worm including a worm gear disk and a worm gear shaft sleeved on the worm gear disk, the worm gear shaft being arranged between the first worm locking block and the second worm locking block, one end of the first worm locking block abuts against the first locking elastic member, and the other end of the first worm locking block extends out of the first swing arm; one end of the second worm locking block abuts against the second locking elastic member, and the other end of the second worm locking block extends out of the second swing arm.

[0008] Furthermore, the translational lifting mechanism includes a first controller, a first electromagnet, a lever, a lifting drive motor, a transposition gear, a horizontal moving device and a vertical lifting device, wherein the lifting drive motor is connected to the transposition gear.

[0009] The first controller is electrically connected to the first electromagnet and the lifting drive motor respectively, and is used to control the first electromagnet to attract or repel, so that the lever drives the transposition gear to move up and down, and the transposition gear is engaged with the horizontal moving device or the vertical lifting device, and the power of the lifting drive motor is transmitted to the horizontal moving device or the vertical lifting device, so that the horizontal moving device drives the horizontal moving device to move horizontally or the vertical lifting device lifts the goods to be transported.

[0010] Furthermore, the horizontal moving device includes a horizontal moving rack, a horizontal moving gear and a horizontal moving platform. The horizontal moving rack is laterally arranged on the foldable movable gantry hanger. The horizontal moving gear can move horizontally relative to the horizontal moving rack. The horizontal moving gear is installed on the horizontal moving platform. Driven by the lifting drive motor, the horizontal moving gear moves relatively on the horizontal moving rack to drive the horizontal moving platform to move horizontally on the foldable movable gantry hanger.

[0011] Furthermore, the vertical lifting device includes a lifting drive gear, a drum and a wire rope. The lifting drive gear is connected to the drum, and the wire rope is wound around the drum. Driven by the lifting drive motor, the lifting drive gear rotates the drum to allow the wire rope to lift the goods to be transported.

[0012] Furthermore, a self-locking device is provided inside the reel, and the self-locking device includes an inner limit tooth, a reel buckle and a locking spring. The inner limit tooth is sleeved on the reel and rotates relative to the reel, and the locking spring is located between the reel and the inner limit tooth. A positioning hole is provided on the reel, and the reel buckle abuts against the inner limit tooth after passing through the positioning hole to engage the reel with the inner limit tooth.

[0013] Furthermore, the track includes a first guide rail and a second guide rail, the folding drive mechanism includes a second controller, a guide rail drive motor, a second electromagnet, a clutch device, a first transmission mechanism and a second transmission mechanism, the first transmission mechanism is connected to the first guide rail, and the second transmission mechanism is connected to the second guide rail.

[0014] The second controller is electrically connected to the second electromagnet and the guide rail drive motor respectively, and is used to control the second electromagnet to attract or repel the clutch device, so that the clutch device cooperates with the first transmission mechanism and / or the second transmission mechanism, and the first transmission mechanism drives the first guide rail and / or the second transmission mechanism drives the second guide rail to move.

[0015] Furthermore, the first transmission mechanism includes a first driving gear, and the second transmission mechanism includes a second driving gear. The first driving gear is meshed with the first guide rail, and the second driving gear is meshed with the second guide rail. The clutch device includes a driving worm, a driving shaft, a clutch shaft buckle and a clutch shaft permanent magnet. The driving worm is connected to the main shaft of the guide rail drive motor, the clutch shaft permanent magnet is arranged at the end of the driving shaft and is opposite to the second electromagnet, and the clutch shaft buckle is connected to the driving shaft.

[0016] Furthermore, the folding drive mechanism also includes a support frame telescopic assembly, which includes a slide plate, a rack slider, a rack crank and a support frame driving rack. A second rotating shaft is provided on the first guide rail, and a rotating part rotatably connected to the second rotating shaft is correspondingly provided on the support frame, and an arc-shaped gear segment matching the support frame driving rack is provided on the rotating part; the rack crank is fixed on the support frame driving rack, and a Z-shaped slide plate is provided with a Z-shaped slide, one end of the rack slider overlaps the Z-shaped slide, and the other end of the rack slider overlaps the rack crank.

[0017] The beneficial effects achieved by the present invention are:

[0018] The foldable mobile gantry hanger provided by the present invention uses a hanger body, a translational lifting mechanism, a track, a support frame and a folding drive mechanism. The folding drive mechanism controls the foldable mobile gantry hanger or the support frame to be in an unfolded and / or stored state, respectively, so that the hanger body moves horizontally relative to the track when unfolded or folds at the front end of the carriage when stored; the support frame moves out of the track when unfolded to support on the ground or is stored in the track when stored. The foldable mobile gantry hanger provided by the present invention can be installed on both sides of a truck compartment; it has a high degree of automation and good safety; it is easy to use and improves work efficiency; it does not take up space when stored and saves truck compartment space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a foldable movable gantry hanger provided by the present invention when unfolded;

[0020] Figure 2A schematic diagram of the three-dimensional structure of an embodiment of a foldable movable gantry hanger provided by the present invention when it is stored;

[0021] Figure 3 A schematic diagram of the structure of the foldable mobile gantry hanger provided by the present invention when it is installed on a truck and unfolded;

[0022] Figure 4 A schematic diagram of the structure of the foldable mobile gantry hanger provided by the present invention when it is installed on a truck and stored;

[0023] Figure 5 for Figure 2 A partial enlarged schematic diagram of part A;

[0024] Figure 6 for Figure 1 A partial enlarged schematic diagram of part B;

[0025] Figure 7 It is a structural schematic diagram of the first embodiment of the foldable movable gantry hanger when it is stored;

[0026] Figure 8 It is a structural schematic diagram of the second embodiment of the foldable movable gantry hanger when it is stored;

[0027] Fig. 9 for Figure 7 A partial enlarged schematic diagram of part E in the middle;

[0028] Fig.10 for Figure 8 A partial enlarged schematic diagram of part F in the middle;

[0029] Fig.11 for Figure 1 A partial enlarged schematic diagram of part C in the middle;

[0030] Fig.12 for Fig.11 A schematic diagram of the three-dimensional structure when the lifting drive gear and the drum are connected as shown in FIG.

[0031] Fig.13 for Fig.11 A schematic diagram of the planar structure when the lifting drive gear and the drum are connected as shown in FIG.

[0032] Fig.14 for Fig.13 Section view along plane AA;

[0033] Fig.15 It is a structural schematic diagram of the third embodiment of the foldable movable gantry hanger when it is stored;

[0034] Fig.16 It is a structural schematic diagram of the fourth embodiment of the foldable movable gantry hanger when it is stored;

[0035] Fig.17 for Figure 1 A partial enlarged schematic diagram of part D in the middle.

[0036] Description of Figure Numbers:

[0037] 10. Carriage; 21. Hanger body; 22. Translational lifting mechanism; 23. Track; 24. Support frame; 25. Folding drive mechanism; 211. Load-bearing rod; 212. Support rod; 2131. First rotating arm; 2132. Second rotating arm; 2133. First rotating shaft; 2341. Folding gear; 2342. Folding worm; 2343. Speed ​​reducer; 2344. Folding drive motor; 2345. Clamping block; 2251. First worm locking block; 2252. Second worm locking block; 2253. First locking elastic member; 2254. Second locking elastic member; 23421. Worm wheel; 23422. Worm wheel shaft; 222. First electromagnet; 223. Push rod; 224. Lifting drive motor; 225. Transposition gear; 2261. Lifting drive gear; 2262 , drum; 2263, wire rope; 2271, horizontal moving rack; 2272, horizontal moving gear; 2273, horizontal moving platform; 2281, inner limit tooth; 2282, drum buckle; 2283, locking spring; 231, first guide rail; 232, second guide rail; 251, guide rail driving motor; 252, second electromagnet; 253, clutch device; 254, first driving gear; 255, second driving gear; 2531, driving worm; 2532, driving shaft; 2533, clutch shaft buckle; 2534, clutch shaft permanent magnet; 256, slide plate; 257, rack slider; 258, rack crank; 259, support frame driving rack; 2311, second rotating shaft; 241, rotating part; 242, arc-shaped gear segment; 2561, Z-shaped slide. DETAILED DESCRIPTION

[0038] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] like Figures 1 to 4As shown, the first embodiment of the present invention proposes a foldable movable gantry hanger, which is installed on the car body 10 of a truck. The foldable movable gantry hanger includes a hanger body 21, a translational lifting mechanism 22, a track 23, a support frame 24 and a folding drive mechanism 25. The hanger body 21 is connected to the support frame 24; the hanger body 21 can move horizontally relative to the track 23; the translational lifting mechanism 22 is arranged on the hanger body 21, and the track 23 is laid on both sides of the car body 10; the folding drive mechanism 25 is respectively connected to the hanger body 21 and the support frame 24, and is used to respectively control the hanger body 21 or the support frame 24 to be in an unfolded and / or stored state, so that the hanger body 21 moves horizontally relative to the track 23 when unfolded or is folded at the front end of the car body 10 when stored; the support frame 24 moves out of the track 23 to be supported on the ground when unfolded or is stored in the track 23 when stored. The folding drive mechanism 25 can use an existing folding and / or telescopic structure to unfold and / or store the hanger body 21. In this embodiment, the foldable mobile gantry hanger is a portable crane that can be installed at both ends of a truck. Figures 1 to 4 When the foldable mobile gantry crane is unfolded, the hanger body 21 on the crane can move along the unfolded track 23. At the same time, the support frame 24 arranged under the unfolded track 23 will support the track 23, thereby increasing the supporting strength.

[0040] In the above structure, see Figures 5 to 10 , Figure 5 for Figure 2A partial enlarged schematic diagram of part A in the middle, in this embodiment, a load-bearing rod 211, a support rod 212, and a gantry folding mechanism connected between the load-bearing rod 211 and the support rod 212 are provided on the hanger body 21, the gantry folding mechanism includes a first rotating arm 2131 provided on the end of the load-bearing rod 211, a second rotating arm 2132 provided on the end of the support rod 212, and a first rotating shaft 2133 and a folding drive assembly installed on the first rotating arm 2131 and the second rotating arm 2132, wherein the folding drive assembly includes a folding gear 2341 provided at the first rotating arm 2131, a folding worm 2342 provided at the second rotating arm 2132 and matched with the folding gear 2341, a reducer 2343 connected to the folding worm 2342, and a folding drive motor 2344 connected to the reducer 2343. Preferably, the gantry folding mechanism further comprises a worm locking assembly disposed below the folding worm 2342 for locking the hanger body 21 when the hanger body 21 is in an extended state, the worm locking assembly comprising a first worm locking block 2251, a second worm locking block 2252, a first locking elastic member 2253 and a second locking elastic member 2254, the folding worm 2342 comprises a worm wheel disc 23421 and a worm wheel shaft 23422 sleeved on the worm wheel disc 23421 The worm wheel shaft 23422 is arranged between the first worm locking block 2251 and the second worm locking block 2252, one end of the first worm locking block 2251 abuts against the first locking elastic member 2253, and the other end of the first worm locking block 2251 extends out of the first rotating arm 2131; one end of the second worm locking block 2252 abuts against the second locking elastic member 2254, and the other end of the second worm locking block 2252 extends out of the second rotating arm 2132. The folding drive assembly is also provided with a snap-fit ​​block 2345 that is snap-fitted with the first worm locking block 2251 and the second worm locking block 2252. When the snap-fit ​​block is snap-fitted with the first worm locking block 2251 and the second worm locking block 2252, the first locking elastic member 2253 and the second locking elastic member 2254 are compressed, and the first worm locking block 2251 and the second worm locking block 2252 cooperate with each other to be in an open state. At this time, the worm gear shaft 23422 located between the first worm locking block 2251 and the second worm locking block 2252 can rotate. The reducer 2343 adopts an inner hexagon through hole reducer, which is used to directly cooperate with the worm gear shaft 23422. In this embodiment, the first locking elastic member 2253 and the second locking elastic member 2254 adopt locking springs. The worm gear shaft 23422 adopts a hexagonal shaft. When the hanger body 21 moves to a position close to the front of the vehicle, it will be close to the gantry folding mechanism. At this time, the first worm locking block 2251 and the second worm locking block 2252 on the hanger body 21 will be compressed inward by the folding drive assembly, and the worm gear shaft 23422 can rotate. Then the folding drive motor 2344 and the reducer 2343 can drive the folding worm 2342 to rotate, thereby driving the load-bearing rod 211 to fold downward.When the hanger body 21 is unfolded, since the hanger body 21 is not in contact with the locking block 2345, the first worm locking block 2251 and the second worm locking block 2252 are popped out under the action of the first locking elastic member 2253 and the second locking elastic member 2254, and the worm wheel shaft 23422 between the first worm locking block 2251 and the second worm locking block 2252 will be locked, and the hanger body 21 will not bend, thereby protecting the safety of the foldable movable gantry hanger.

[0041] Further, see Figures 11 to 14 , Fig.11 for Figure 1The partially enlarged schematic diagram of part C in the middle, in this embodiment, the translation lifting mechanism 22 includes a first controller, a first electromagnet 222, a shifting rod 223, a lifting drive motor 224, a transposition gear 225, a horizontal moving device and a vertical lifting device, the lifting drive motor 224 is connected to the transposition gear 225, and the first controller is electrically connected to the first electromagnet 222 and the lifting drive motor 224, respectively, for controlling the first electromagnet 222 to attract or repel, so that the shifting rod 223 shifts the transposition gear 225 up and down, and the transposition gear 225 is engaged with the horizontal moving device or the vertical lifting device, and the power of the lifting drive motor 224 is transmitted to the horizontal moving device or the vertical lifting device, so that the horizontal moving device drives the horizontal moving device to move horizontally or the vertical lifting device lifts the goods to be transported. Specifically, the horizontal moving device includes a horizontal moving rack 2271, a horizontal moving gear 2272 and a horizontal moving platform 2273. The horizontal moving rack 2271 is laterally arranged on the hanger body 21. The horizontal moving gear 2272 can move horizontally relative to the horizontal moving rack 2271. The horizontal moving gear 2272 is installed on the horizontal moving platform 2273. Driven by the lifting drive motor 224, the horizontal moving gear 2272 moves relatively on the horizontal moving rack 2271 to drive the horizontal moving platform 2273 to move horizontally on the hanger body 21. The vertical lifting device includes a lifting drive gear 2261, a drum 2262 and a wire rope 2263. The lifting drive gear 2261 is connected to the drum 2262. The wire rope 2263 is wound around the drum 2262. Driven by the lifting drive motor 224, the lifting drive gear 2261 rotates the drum 2262 so that the wire rope 2263 can lift the goods to be transported. A lifting hook is provided at the end of the wire rope 2263. In this embodiment, the horizontal movement and start-up of the translational lifting mechanism 22 share a set of power. When the first electromagnet 222 is attracted, the lever 223 shifts the transposition gear 225 upward, and the power is transmitted to the horizontal movement gear 2272, and the lifting device can move left and right. When the first electromagnet 222 is repelled, the lever 223 moves downward, and the transposition gear 225 transmits the power to the lifting drive gear 2261, and the drum 2262 drives the wire rope 2263 to lift the goods. When the lifting drive motor 224 does not drive the reel 2262, there is a self-locking mechanism inside the reel 2262, and the reel 2262 will not move, thereby preventing the goods from falling. Preferably, a self-locking device is provided inside the reel 2262, and the self-locking device includes an inner limit tooth 2281, a reel buckle 2282 and a locking spring 2283, the inner limit tooth 2281 is sleeved on the reel 2262 and rotates relative to the reel 2262, and the locking spring 2283 is located between the reel 2262 and the inner limit tooth 2281; a positioning hole is provided on the reel 2262, and the reel buckle 2282 passes through the positioning hole and abuts against the inner limit tooth 2281, so as to engage the reel 2262 with the inner limit tooth 2281.The self-locking device is composed of an inner limit tooth 2281, a reel buckle 2282 and a locking spring 2283. When the lifting drive gear 2261 is stationary, due to the spring force of the locking spring 2283, the lifting drive gear 2261 will press the reel buckle 2282 into the inner limit tooth 2281, and the reel 2262 cannot rotate at this time. When the lifting drive gear 2261 is started to rotate, the reel buckle 2282 will pop out of the inner limit tooth 2281, and the lifting drive gear 2261 can rotate together with the reel 2262.

[0042] Preferably, see Figures 15 to 17 , Fig.15It is a structural schematic diagram of the third embodiment of the foldable movable gantry hanger when it is stored. On the basis of the first embodiment, the track 23 includes a first guide rail 231 and a second guide rail 232, and the folding drive mechanism 25 includes a second controller, a guide rail drive motor 251, a second electromagnet 252, a clutch device 253, a first transmission mechanism and a second transmission mechanism. The first transmission mechanism is connected to the first guide rail 231, and the second transmission mechanism is connected to the second guide rail 232. The second controller is electrically connected to the second electromagnet 252 and the guide rail drive motor 251, respectively, and is used to control the second electromagnet 252 to attract or repel the clutch device 253, so that the clutch device 253 cooperates with the first transmission mechanism and / or the second transmission mechanism, so that the first transmission mechanism drives the first guide rail 231 and / or the second transmission mechanism drives the second guide rail 232 to move. Further, the first transmission mechanism includes a first driving gear 254, and the second transmission mechanism includes a second driving gear 255. The first driving gear 254 is meshed with the first guide rail 231, and the second driving gear 255 is meshed with the second guide rail 232. The clutch device 253 includes a driving worm 2531, a driving shaft 2532, a clutch shaft buckle 2533, and a clutch shaft permanent magnet 2534. The driving worm 2531 is connected to the main shaft of the guide rail driving motor 251, the clutch shaft permanent magnet 2534 is arranged at the end of the driving shaft 2532 and is directly opposite to the second electromagnet 252, and the clutch shaft buckle 2533 is connected to the driving shaft 2532. In this embodiment, the deployment of the first guide rail 231 and the second guide rail 232, and the forward and backward movement of the hanger body 21 are all powered by a set of mechanisms. The mechanism is provided with a clutch device 253. When the guide rail driving motor 251 rotates, it can choose to drive only the first driving gear 254, or drive the first driving gear 254 and the second driving gear 255 at the same time. When only the first driving gear 254 is driven, the first guide rail 231 will be extended and retracted. When the first driving gear 254 and the second driving gear 255 are driven at the same time, the first guide rail 231 and the second guide rail 232 will be fixed, and the hanger body 21 will move along the guide rail. The clutch shaft is attracted and repelled by the second electromagnet 252, and the clutch shaft buckle 2533 on the driving shaft 2532 will cooperate with the first driving gear 254 and the second driving gear 255. The driving shaft 2532 will transmit power to the first driving gear 254 or the second driving gear 255, and the driving shaft 2532 is connected to the guide rail driving motor 251 through the driving worm 2531 to obtain power.Specifically, the folding drive mechanism 25 also includes a support frame telescopic assembly, which includes a slide plate 256, a rack slider 257, a rack crank 258 and a support frame driving rack 259. The first guide rail 231 is provided with a second rotating shaft 2311, and the support frame 24 is correspondingly provided with a rotating portion 241 rotatably connected to the second rotating shaft 2311, and the rotating portion 241 is provided with an arc-shaped gear segment 242 that matches the support frame driving rack 259; the rack crank 258 is fixedly arranged on the support frame driving rack 259, and the slide plate 256 is provided with a Z-shaped slide 2561, one end of the rack slider 257 overlaps with the Z-shaped slide 2561, and the other end of the rack slider 257 overlaps with the rack crank 258. The first guide rail 231 is a fixed guide rail, on which there is a slide plate 256, and the slide plate 256 is provided with a Z-shaped slide 2561. When the first guide rail 231 is unfolded, the rack slider 257 will move up and down along the Z-shaped slide groove 2561, and the rack crank 258 will move to the right, and the support frame 24 connected thereto will be unfolded. When the steel guide rail is retracted, the support frame 24 will be closed.

[0043] Please see Figures 1 to 17 The working principle of the foldable movable gantry hanger provided in this embodiment is as follows:

[0044] When the hanger body 21 moves to a position close to the front of the vehicle, it will be close to the folding mechanism of the gantry. At this time, the first worm locking block 2251 and the second worm locking block 2252 on the hanger body 21 will be compressed inward by the folding drive assembly, and the worm gear shaft 23422 can rotate. Then the folding drive motor 2344 and the reducer 2343 can drive the folding worm 2342 to rotate, thereby driving the load-bearing rod 211 to fold downward. When the hanger body 21 is unfolded, since the hanger body 21 is not in contact with the locking block 2345, the first worm locking block 2251 and the second worm locking block 2252 are ejected under the action of the first locking elastic member 2253 and the second locking elastic member 2254, and the worm gear shaft 23422 located between the first worm locking block 2251 and the second worm locking block 2252 will be locked, and the hanger body 21 will not bend, thereby protecting the safety of the foldable and movable gantry hanger.

[0045] The horizontal movement and start-up of the translational lifting mechanism 22 share a set of power. When the first electromagnet 222 is attracted, the lever 223 shifts the transposition gear 225 upward, and the power is transmitted to the horizontal movement gear 2272, so that the lifting device can move left and right. When the first electromagnet 222 is repelled, the lever 223 moves downward, and the transposition gear 225 transmits the power to the lifting drive gear 2261, and the drum 2262 drives the wire rope 2263 to lift the goods. When the lifting drive motor 224 does not drive the drum 2262, there is a self-locking mechanism inside the drum 2262, and the drum 2262 will not move, thereby preventing the goods from falling.

[0046] When the first guide rail 231 is unfolded, the rack slider 257 will move up and down along the Z-shaped slide groove 2561, and the rack crank 258 will move to the right, and the support frame 24 connected thereto will be unfolded. When the steel guide rail is retracted, the support frame 24 will be closed.

[0047] Compared with the prior art, the foldable mobile gantry hanger provided in this embodiment adopts a gantry crane structure, uses a hanger body, a translational lifting mechanism, a track, a support frame and a folding drive mechanism, and controls the foldable mobile gantry hanger or the support frame to be unfolded and / or stored through the folding drive mechanism, so that the hanger body moves horizontally relative to the track when unfolded or folds at the front end of the car when stored; the support frame moves out of the track when unfolded to support on the ground or is stored in the track when stored. The foldable mobile gantry hanger provided in this embodiment has a high degree of automation and good safety; it is easy to use and improves work efficiency; it does not take up space when stored and saves truck compartment space.

[0048] Although preferred embodiments of the present invention have been described, additional changes and modifications may be made to these embodiments by those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A foldable mobile gantry hanger, characterized in that: Installed on a carriage (10) of a truck, the foldable and movable gantry hanger comprises a hanger body (21), a translational lifting mechanism (22), a track (23), a support frame (24) and a folding drive mechanism (25), wherein the hanger body (21) is connected to the support frame (24); the hanger body (21) can move horizontally relative to the track (23); the translational lifting mechanism (22) is arranged on the hanger body (21), and the track (23) is laid on both sides of the carriage (10); The folding drive mechanism (25) is connected to the hanger body (21) and the support frame (24) respectively, and is used to control the hanger body (21) or the support frame (24) to be in an unfolded and / or retracted state respectively, so that the hanger body (21) moves horizontally relative to the track (23) when unfolded or folds at the front end of the carriage (10) when retracted; so that the support frame (24) moves out of the track (23) to be supported on the ground when unfolded or is retracted in the track (23) when retracted; The hanger body (21) is provided with a load-bearing rod (211), a support rod (212), and a gantry folding mechanism connected between the load-bearing rod (211) and the support rod (212); the gantry folding mechanism comprises a first rotating arm (2131) arranged at the end of the load-bearing rod (211), a second rotating arm (2132) arranged at the end of the support rod (212), and a first rotating shaft (2133) and a folding drive assembly installed on the first rotating arm (2131) and the second rotating arm (2132); the folding drive assembly comprises a folding gear (2341) arranged at the first rotating arm (2131), a folding worm (2342) arranged at the second rotating arm (2132) and matched with the folding gear (2341), a reducer (2343) connected to the folding worm (2342), and a folding drive motor (2344) connected to the reducer (2343); The gantry folding mechanism also includes a worm locking assembly arranged below the folding worm (2342) for locking the hanger body (21) when the hanger body (21) is in an extended state, the worm locking assembly including a first worm locking block (2251), a second worm locking block (2252), a first locking elastic member (2253) and a second locking elastic member (2254), the folding worm (2342) including a worm wheel (23421) and a worm wheel shaft (23422) sleeved on the worm wheel (23421), the worm wheel shaft (23422) being arranged between the first worm locking block (2251) and the second worm locking block (2252). Between the worm locking blocks (2252), one end of the first worm locking block (2251) is in contact with the first locking elastic member (2253), and the other end of the first worm locking block (2251) extends out of the first rotating arm (2131); one end of the second worm locking block (2252) is in contact with the second locking elastic member (2254), and the other end of the second worm locking block (2252) extends out of the second rotating arm (2132), and the first locking elastic member (2253) and the second locking elastic member (2254) adopt locking springs; the worm wheel shaft (23422) adopts a hexagonal shaft.

2. The foldable movable gantry hanger according to claim 1, characterized in that: The translational lifting mechanism (22) comprises a first controller, a first electromagnet (222), a lever (223), a lifting drive motor (224), a transposition gear (225), a horizontal moving device and a vertical lifting device, wherein the lifting drive motor (224) is connected to the transposition gear (225). The first controller is electrically connected to the first electromagnet (222) and the lifting drive motor (224) respectively, and is used to control the first electromagnet (222) to attract or repel, so that the shifting rod (223) shifts the transposition gear (225) to move up and down, so that the transposition gear (225) is engaged with the horizontal moving device or the vertical lifting device, and the power of the lifting drive motor (224) is transmitted to the horizontal moving device or the vertical lifting device, so that the horizontal moving device drives the horizontal moving device to move horizontally or the vertical lifting device lifts the goods to be transported.

3. The foldable movable gantry hanger according to claim 2, characterized in that: The horizontal moving device comprises a horizontal moving rack (2271), a horizontal moving gear (2272) and a horizontal moving platform (2273); the horizontal moving rack (2271) is laterally arranged on the hanger body (21); the horizontal moving gear (2272) can move horizontally relative to the horizontal moving rack (2271); the horizontal moving gear (2272) is installed on the horizontal moving platform (2273); driven by the lifting drive motor (224), the horizontal moving gear (2272) moves relatively on the horizontal moving rack (2271) to drive the horizontal moving platform (2273) to move horizontally on the hanger body (21).

4. The foldable movable gantry hanger according to claim 2, characterized in that: The vertical lifting device comprises a lifting drive gear (2261), a drum (2262) and a steel wire rope (2263); the lifting drive gear (2261) is connected to the drum (2262); the steel wire rope (2263) is wound around the drum (2262); driven by the lifting drive motor (224), the lifting drive gear (2261) drives the drum (2262) to rotate, so that the steel wire rope (2263) lifts the goods to be transported.

5. The foldable movable gantry hanger according to claim 4, characterized in that: A self-locking device is provided inside the reel (2262), and the self-locking device includes an inner limit tooth (2281), a reel buckle (2282) and a locking spring (2283); the inner limit tooth (2281) is sleeved on the reel (2262) and rotates relative to the reel (2262); the locking spring (2283) is located between the reel (2262) and the inner limit tooth (2281); a positioning hole is provided on the reel (2262), and the reel buckle (2282) passes through the positioning hole and abuts against the inner limit tooth (2281) to engage the reel (2262) with the inner limit tooth (2281).

6. The foldable movable gantry hanger according to claim 1, characterized in that: The track (23) comprises a first guide rail (231) and a second guide rail (232); the folding drive mechanism (25) comprises a second controller, a guide rail drive motor (251), a second electromagnet (252), a clutch device (253), a first transmission mechanism and a second transmission mechanism; the first transmission mechanism is connected to the first guide rail (231), and the second transmission mechanism is connected to the second guide rail (232). The second controller is electrically connected to the second electromagnet (252) and the guide rail drive motor (251) respectively, and is used to control the second electromagnet (252) to attract or repel the clutch device (253), so that the clutch device (253) cooperates with the first transmission mechanism and / or the second transmission mechanism, so that the first transmission mechanism drives the first guide rail (231) and / or the second transmission mechanism drives the second guide rail (232) to move.

7. The foldable movable gantry hanger according to claim 6, characterized in that: The first transmission mechanism comprises a first driving gear (254), and the second transmission mechanism comprises a second driving gear (255). The first driving gear (254) is meshed with the first guide rail (231), and the second driving gear (255) is meshed with the second guide rail (232). The clutch device (253) comprises a driving worm (2531), a driving shaft (2532), a clutch shaft buckle (2533) and a clutch shaft permanent magnet (2534). The driving worm (2531) is connected to the main shaft of the guide rail driving motor (251). The clutch shaft permanent magnet (2534) is arranged at the end of the driving shaft (2532) and is directly opposite to the second electromagnet (252). The clutch shaft buckle (2533) is connected to the driving shaft (2532).

8. The foldable movable gantry hanger according to claim 6, characterized in that: The folding drive mechanism (25) further comprises a support frame telescopic assembly, the support frame telescopic assembly comprising a slide plate (256), a rack slider (257), a rack crank (258) and a support frame driving rack (259), the first guide rail (231) is provided with a second rotating shaft (2311), the support frame (24) is correspondingly provided with a rotating part (241) rotatably connected to the second rotating shaft (2311), the rotating part (241) A circular arc gear segment (242) is provided on the support frame driving rack (259); the rack crank (258) is fixed on the support frame driving rack (259); a Z-shaped slide groove (2561) is provided on the slide groove plate (256); one end of the rack slider (257) is overlapped with the Z-shaped slide groove (2561), and the other end of the rack slider (257) is overlapped with the rack crank (258).

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