CN220535693U - High-load labor-saving stair climbing trolley - Google Patents

Abstract

The utility model provides a high-load labor-saving stair climbing trolley which comprises a trolley frame, a goods shelf, a supporting mechanism and stair climbing wheel assemblies, wherein a telescopic push-pull rod is arranged at the top of the trolley frame, the goods shelf is fixedly connected to the bottom end of the trolley frame and is positioned in front of the trolley frame, the supporting mechanism is arranged on the trolley frame and is positioned at the rear of the trolley frame, the supporting mechanism comprises a bearing assembly and a locking rod, the bearing assembly comprises a fixing block, a telescopic supporting rod, universal wheels and buckles, the fixing block is fixedly arranged on the trolley frame, and one end of the telescopic supporting rod is fixedly connected to the fixing block and is perpendicular to the trolley frame. The high-load labor-saving stair climbing trolley is firm in structure, simple to operate and labor-saving, and the telescopic rod arranged inside the trolley enlarges the application range of the trolley, so that the trolley can be folded and stored more conveniently.

Description

High-load labor-saving stair climbing trolley

Technical Field

The utility model relates to the technical field of trolleys, in particular to a high-load labor-saving stair climbing trolley.

Background

The manual cart is logistics equipment which is simple and flexible to operate, can be used for carrying cargoes, lightens the strength burden of a human body and improves the transportation efficiency. Has wide application in the fields of industry, commerce, agriculture and the like.

At present, the handcart with three casters is widely applied to various industries because of the excellent stair climbing capability, but when the handcart in the prior art is dragged on a flat ground, the handcart can only walk by relying on the wheels at the front end, has poor stability, and if the inclined angle of a frame is not mastered during pushing, the goods on the frame are easy to fall off, so that the handcart is inconvenient to push, and the application range of the handcart is limited. Therefore, a high-load labor-saving stair climbing trolley is provided.

Disclosure of Invention

According to the high-load labor-saving stair climbing trolley, the telescopic supporting rods with the universal wheels and the corresponding locking rods are arranged, so that the supporting part of the trolley frame is increased, the telescopic length of the telescopic supporting rods can be adjusted according to requirements, the inclination angle of the trolley frame is adjusted, goods are effectively prevented from falling in the pushing process of the trolley on the flat ground, and the pushing stability is improved.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

the utility model provides a high load laborsaving type stair climbing shallow, includes frame, goods shelves, supporting mechanism and stair climbing wheel subassembly, flexible push-and-pull rod is installed at the frame top, goods shelves fixed connection in the bottom of frame is located the place ahead of frame, supporting mechanism set up in on the frame and be located the rear of frame, supporting mechanism includes bearing assembly and locking lever, bearing assembly includes fixed block, flexible bracing piece, universal wheel and buckle, the fixed block fixed set up in on the frame, flexible bracing piece one end fixed connection in on the fixed block and perpendicular to the frame, the universal wheel set up in the flexible bracing piece other end, the buckle slide set up in on the fixed block, the locking lever set up in on the frame and can with the buckle is docked, stair climbing wheel subassembly set up in the frame rear. The supporting structure is arranged on the stair climbing trolley, so that the bearing capacity and stability of the stair climbing trolley can be improved, and the practicability of the stair climbing trolley is also improved; the universal wheels are arranged on the supporting structure, so that the cart is more flexible and labor-saving.

Further, the flexible bracing piece includes first support, first telescopic link, U type clamp and fixture block, first support fixed connection in on the fixed block, first telescopic link one end fixed set up in on the first support, U type clamp fixed connection in the other end of first telescopic link, the universal wheel rotate connect in on the U type clamp, the fixture block fixed set up in on the first telescopic link, the fixture block is provided with two and symmetric distribution. The telescopic structure is arranged, so that the cart is more flexible and convenient to use; according to the adjustment of the length of the telescopic rod to the frame inclination angle, the falling of cargoes is effectively avoided, and the practicability and the safety of the cart are improved.

Further, the locking rod comprises a second support, a second telescopic rod and a lock catch, the second support is fixedly arranged at the bottom end of the frame, one end of the second telescopic rod is hinged to the second support, the lock catch is fixedly connected to the other end of the second telescopic rod, a lock catch groove is formed in the lock catch, and the clamping block can be clamped in the lock catch groove. When the locking rod is fastened on the telescopic supporting rod, the locking rod, the telescopic supporting rod and the frame form a firm triangle structure, so that the stability and the reliability of the supporting structure are improved, the safety of a user is ensured, and the cart is firmer.

Further, the sliding tray has been seted up on the fixed block, the buckle groove has been seted up on the hasp, the buckle includes pillar and spring, the spring set up in the sliding tray, pillar fixed connection is in the one end of spring, the pillar is "I" style of calligraphy and both ends all follow stretch out in the sliding tray be used for the joint in the buckle inslot, the diameter at the both ends of pillar is all greater than the width of sliding tray. The locking rod can be stored when not used and cannot slide down due to the arrangement of the buckle; when the locking rod is needed, the locking rod can be put down for use only by slightly pulling up the support post.

Further, the stair climbing wheel assembly comprises a triangular wheel, a left wheel supporting bar and a right wheel supporting bar, wherein the left wheel supporting bar and the right wheel supporting bar are fixedly connected to the frame, and the triangular wheel is provided with two triangular wheels which are respectively and rotatably arranged on the left wheel supporting bar and the right wheel supporting bar. The triangular wheels can enable the cart to climb stairs easily, and physical strength of a user is greatly saved.

Furthermore, an anti-skid sleeve is fixedly arranged at the top end of the telescopic push-pull rod.

Further, the novel storage rack further comprises a handle, wherein the handle is fixedly arranged on the storage rack and located on the side face of the storage rack. The handle is arranged to facilitate the lifting of the trolley and the storage of the trolley.

The utility model has the following characteristics and beneficial effects:

1. the supporting structure is arranged on the stair climbing trolley, so that the bearing capacity and stability of the stair climbing trolley can be improved, and the practicability of the stair climbing trolley is also improved; the universal wheels are arranged on the supporting structure, so that the cart is more flexible and labor-saving.

2. The telescopic structure is arranged, so that the cart is more flexible and convenient to use; according to the adjustment of the length of the telescopic rod to the frame inclination angle, the falling of cargoes is effectively avoided, and the practicability and the safety of the cart are improved.

3. When the locking rod is fastened on the telescopic supporting rod, the locking rod, the telescopic supporting rod and the frame form a firm triangle structure, so that the stability and the reliability of the supporting structure are improved, the safety of a user is ensured, and the cart is firmer.

4. The locking rod can be stored when not used and cannot slide down due to the arrangement of the buckle; when the locking rod is needed, the locking rod can be put down for use only by slightly pulling up the support post.

Compared with the prior art, the utility model has the technical effects that: the high-load labor-saving stair climbing trolley is firm in structure, simple to operate and labor-saving, and the telescopic rod arranged inside the trolley enlarges the application range of the trolley, so that the trolley can be folded and stored more conveniently.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic structural view of a high-load labor-saving stair climbing trolley.

Fig. 2 is a partial enlarged view at a mark a in fig. 1.

Fig. 3 is a schematic structural view of another working mode of the high-load labor-saving stair climbing cart according to the present utility model.

Fig. 4 is a front view of a frame in a high load labor-saving stair climbing cart according to the present utility model.

Fig. 5 is a top view of a frame of a high load labor-saving stair climbing cart according to the present utility model.

Fig. 6 is a schematic structural view of a telescopic support rod in a high-load labor-saving stair climbing trolley.

Fig. 7 is a top view of a telescoping support bar in a high load labor-saving stair climbing cart according to the present utility model.

Fig. 8 is a schematic structural view of a first support in the high-load labor-saving stair climbing trolley according to the present utility model.

Fig. 9 is a schematic structural view of a second support in the high-load labor-saving stair climbing trolley.

Fig. 10 is a schematic structural view of a locking lever in a high load labor-saving stair climbing cart according to the present utility model.

Fig. 11 is a schematic structural view of a latch in a high-load labor-saving stair climbing cart according to the present utility model.

In the figure, 1-shelf; 2-a frame; 21-a telescopic push-pull rod; 3-a supporting mechanism; 31-a load bearing assembly; 311-fixing blocks; 3111-sliding grooves; 312-telescopic support rods; 3121-a first support; 3122—a first telescoping rod; 3123-U-shaped clips; 3124-a latch; 313-universal wheels; 314-snap; 3141-struts; 3142-a spring; 32-locking bar; 321-a second support; 322-a second telescopic rod; 323-locking buckle; 3231-snap groove; 3232—a catch groove; 4-stair climbing wheel assembly; 41-triangular wheels; 42-left wheel support bar; 43-right wheel support bar; 5-an anti-skid sleeve; 6-handle.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Referring to fig. 1-5, a high-load labor-saving stair climbing trolley comprises a trolley frame 2, a goods shelf 1, a supporting mechanism 3 and stair climbing wheel assemblies 4, wherein a telescopic push-pull rod 21 is arranged at the top of the trolley frame 2, and an anti-slip sleeve 5 is fixedly sleeved at the top end of the telescopic push-pull rod 21; the goods shelf 1 is fixed at the bottom end of the frame 2 by bolts and positioned in front of the frame 2, the side face of the goods shelf 1 is welded with the handle 6, and the handle 6 can be convenient for the handcart to be lifted and be stored; the supporting mechanism 3 is arranged on the frame 2 and is located at the rear of the frame 2, the supporting mechanism 3 comprises a bearing component 31 and a locking rod 32, the bearing component 31 comprises a fixed block 311, a telescopic supporting rod 312, universal wheels 313 and a buckle 314, the fixed block 311 is welded on the frame 2, one end of the telescopic supporting rod 312 is fixedly connected to the fixed block 311 and is perpendicular to the frame 2 through bolts, the universal wheels 313 are arranged at the other end of the telescopic supporting rod 312 through bolts, the buckle 314 is slidably arranged on the fixed block 311, the locking rod 32 is arranged on the frame 2 and can be butted with the buckle 314, and the stair climbing wheel component 4 is arranged at the rear of the frame 2. The supporting structure is arranged on the stair climbing trolley, so that the bearing capacity and stability of the stair climbing trolley can be improved, and the practicability of the stair climbing trolley is also improved; the universal wheels 313 are arranged on the supporting structure, so that the cart is more flexible and labor-saving.

Referring to fig. 6, 7 and 8, the telescopic support bar 312 includes a first support 3121, a first telescopic bar 3122, a U-shaped clamp 3123 and a clamping block 3124, the first support 3121 is fixedly connected to the fixed block 311 by bolts, one end of the first telescopic bar 3122 is welded to the first support 3121, the U-shaped clamp 3123 is welded to the other end of the first telescopic bar 3122, the universal wheel 313 is rotatably connected to the U-shaped clamp 3123 by bolts, the clamping block 3124 is welded to the first telescopic bar 3122, and the clamping blocks 3124 are provided with two and symmetrically distributed. The telescopic structure is arranged, so that the cart is more flexible and convenient to use; according to the adjustment of the length of the telescopic rod to the frame inclination angle, the falling of cargoes is effectively avoided, and the practicability and the safety of the cart are improved.

Referring to fig. 9, 10 and 11, the locking lever 32 includes a second support 321, a second telescopic rod 322 and a locking buckle 323, the second support 321 is fixedly disposed at the bottom end of the frame 2 by bolts, one end of the second telescopic rod 322 is hinged on the second support 321, the locking buckle 323 is welded at the other end of the second telescopic rod 322, a locking buckle groove 3232 is formed in the locking buckle 323, and the clamping block 3124 can be clamped in the locking buckle groove 3232. When the locking rod 32 is fastened on the telescopic supporting rod 312, the locking rod 32, the telescopic supporting rod 312 and the frame 2 form a firm triangle structure, so that the stability and the reliability of the supporting structure are improved, the safety of a user is ensured, and the cart is firmer.

Referring to fig. 2 and 11, a sliding groove 3111 is formed in the fixed block 311, a fastening groove 3231 is formed in the fastening buckle 323, the fastening buckle 314 includes a strut 3141 and a spring 3142, the spring 3142 is disposed in the sliding groove 3111, the strut 3141 is welded at one end of the spring 3142, the strut 3141 is in an I shape, two ends of the strut 3141 extend out of the sliding groove 3111 and are used for being fastened in the fastening groove 3231, and diameters of two ends of the strut 3141 are larger than the width of the sliding groove 3111. The arrangement of the catch 314 allows the locking lever 32 to be stored and not slide off when not in use; when the locking bar 32 is needed, only the post 3141 needs to be pulled up slightly to lower the locking bar 32 for use.

Referring to fig. 1 and 5, the stair climbing wheel assembly 4 includes a triangle wheel 41, a left wheel support bar 42 and a right wheel support bar 43, the left wheel support bar 42 and the right wheel support bar 43 are fixedly connected to the frame 2 by bolts, and the triangle wheel 41 is provided with two and is rotatably connected to the left wheel support bar 42 and the right wheel support bar 43 by bolts, respectively. The use of the triangular wheel 41 allows the cart to easily climb stairs, thereby greatly saving the physical strength of the user.

The specific working principle of the utility model is as follows: when a cart is used to carry more and heavier cargoes, firstly, the bolts on the first support 3121 are loosened, the telescopic support bar 312 is adjusted to be vertical to the frame 2, and then the bolts on the first support 3121 are tightened; the post 3141 in the catch 314 is then lifted up so that the locking lever 32 is lowered; finally, by adjusting the lengths of the first telescopic rod 3122 in the telescopic supporting rod 312 and the second telescopic rod 322 in the locking rod 32, the cart is inclined to a proper angle, and simultaneously the clamping block 3124 is buckled into the locking groove 3232; the steps change the cart into a working mode with high stability and high bearing capacity. When the cart is to be changed into a flexible and convenient working mode, the locking groove 3232 and the clamping block 3124 can be separated, then the locking rod 32 is lifted, and the support column 3141 in the clamping buckle 314 is clamped into the clamping groove 3231 of the locking rod 32; the bolts on the first support 3121 are then loosened, and the telescopic support bar 312 is adjusted to be parallel to the frame 2, and then the bolts on the first support 3121 are tightened; the steps change the handcart into a flexible and convenient working mode.

The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.

Claims (7)

1. A high-load labor-saving stair climbing trolley is characterized in that: including frame, goods shelves, supporting mechanism and stair climbing wheel subassembly, flexible push-and-pull rod is installed at the frame top, goods shelves fixed connection in the bottom of frame is located the place ahead of frame, supporting mechanism set up in on the frame and be located the rear of frame, supporting mechanism includes bearing assembly and locking lever, bearing assembly includes fixed block, flexible bracing piece, universal wheel and buckle, the fixed block fixed set up in on the frame, flexible bracing piece one end fixed connection in on the fixed block and perpendicular to the frame, the universal wheel set up in the flexible bracing piece other end, the buckle slide set up in on the fixed block, the locking lever set up in on the frame and can with the buckle dock mutually, stair climbing wheel subassembly set up in the frame rear.

2. A high load labor-saving stair climbing cart according to claim 1, wherein: the telescopic support rod comprises a first support, a first telescopic rod, a U-shaped clamp and a clamping block, wherein the first support is fixedly connected to the fixed block, one end of the first telescopic rod is fixedly arranged on the first support, the U-shaped clamp is fixedly connected to the other end of the first telescopic rod, the universal wheel is rotationally connected to the U-shaped clamp, the clamping block is fixedly arranged on the first telescopic rod, and the clamping block is provided with two symmetrical distribution.

3. A high load labor-saving stair climbing cart according to claim 2, wherein: the locking rod comprises a second support, a second telescopic rod and a lock catch, wherein the second support is fixedly arranged at the bottom end of the frame, one end of the second telescopic rod is hinged to the second support, the lock catch is fixedly connected to the other end of the second telescopic rod, a lock catch groove is formed in the lock catch, and the clamping block can be clamped in the lock catch groove.

4. A high load labor-saving stair climbing cart according to claim 3, wherein: the sliding block is provided with a sliding groove, the lock catch is provided with a buckle groove, the buckle comprises a support column and a spring, the spring is arranged in the sliding groove, the support column is fixedly connected with one end of the spring, the support column is I-shaped, two ends of the support column extend out of the sliding groove and are used for being clamped in the buckle groove, and the diameters of the two ends of the support column are larger than the width of the sliding groove.

5. A high load, labor-saving stair climbing cart according to any one of claims 1-4, wherein: the stair climbing wheel assembly comprises a triangular wheel, a left wheel supporting bar and a right wheel supporting bar, wherein the left wheel supporting bar and the right wheel supporting bar are fixedly connected to the frame, and the triangular wheel is provided with two triangular wheels which are respectively and rotatably arranged on the left wheel supporting bar and the right wheel supporting bar.

6. A high load, labor-saving stair climbing cart according to any one of claims 1-4, wherein: an anti-skid sleeve is fixedly arranged at the top end of the telescopic push-pull rod.

7. A high load, labor-saving stair climbing cart according to any one of claims 1-4, wherein: the novel storage rack comprises a storage rack body, and is characterized by further comprising a handle which is fixedly arranged on the storage rack and positioned on the side face of the storage rack.