CN215663543U

CN215663543U - Handcart with brake

Info

Publication number: CN215663543U
Application number: CN202122458545.5U
Authority: CN
Inventors: 谢华星; 谢建星
Original assignee: Dongguan Tongli Plastic Products Co ltd
Current assignee: Dongguan Qilihang Technology Co.,Ltd.
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-01-28
Anticipated expiration: 2031-10-12

Abstract

The utility model relates to the technical field of transportation tools, in particular to a trolley with a brake, which comprises a trolley body, a front wheel assembly and a rear wheel assembly, wherein the front wheel assembly and the rear wheel assembly are respectively and rotatably connected to the bottom of the trolley body, the rear wheel assembly comprises a rear rotating shaft rotatably connected to the trolley body, two screw rods respectively arranged at two ends of the rear rotating shaft, a rear wheel sleeved outside the screw rods, a nut structure in threaded connection with the screw rods and used for limiting the rear wheel on the rear rotating shaft, a mounting frame connected to the nut structure and the trolley body, a locking assembly used for locking the mounting frame on the nut structure, and a brake arranged on the mounting frame, and the brake is used for braking the rear wheel. The brake device can brake the rear wheel, has good safety performance, and the nut structure not only can be in threaded connection with the screw rod to limit the rear wheel on the rear rotating shaft, but also can be used for installing and fixing the installation frame, so that the brake device is convenient to disassemble, assemble and maintain, and the disassembling and assembling steps of the trolley are simplified.

Description

Handcart with brake

Technical Field

The utility model relates to the technical field of transportation tools, in particular to a trolley with a brake.

Background

When transporting and carrying goods, the handcart is generally needed to reduce the labor intensity and time of manual transportation. The traditional handcart has no brake function and is poor in use safety; there are also the handcart that has the brake in the existing market, but the dismouting of brake equipment on this kind of handcart is difficult, leads to the dismouting step of handcart loaded down with trivial details. Therefore, the drawbacks are obvious, and a solution is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model aims to provide a trolley with a brake.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a handcart with brake, its includes the hand push automobile body and rotates respectively and connects front wheel subassembly and the rear wheel subassembly in the bottom of hand push automobile body, the rear wheel subassembly is including rotating the back pivot of connecting in the hand push automobile body, set up respectively in two screw rods at the both ends of back pivot, suit in the outer rear wheel of screw rod, with screw rod threaded connection and be used for spacing the rear wheel in the epaxial nut structure of back pivot, connect in the mounting bracket of nut structure and hand push automobile body, be connected with nut structure detachably and be used for with the mounting bracket lock solid in the lock solid subassembly of nut structure and install the brake in the mounting bracket, the brake is used for braking the rear wheel.

Furthermore, the brake shaft of the brake is arranged corresponding to the hub of the rear wheel.

Furthermore, a limiting step is arranged at the joint of the rear rotating shaft and the screw rod, and the rear wheel is abutted against the limiting step.

Further, the nut structure includes screw thread spare and the sleeve of being connected with screw thread spare, screw thread spare is provided with the screw hole, screw hole and the coaxial intercommunication of telescopic through-hole, screw hole and screw rod threaded connection, the top and the handcart body fixed connection of mounting bracket, outside the sleeve was located to the bottom cover of mounting bracket, the lock solid subassembly is used for spacing the mounting bracket on the sleeve.

Further, the one end that the screw thread spare was kept away from to the sleeve is provided with the draw-in groove, the lock solid subassembly includes packing ring and jump ring, outside the packing ring set up the sleeve, jump ring and draw-in groove joint, the packing ring presss from both sides and locates between jump ring and the mounting bracket.

Further, the protruding backing ring that is equipped with of one end that the sleeve is close to the screw thread spare, the backing ring is connected with the screw thread spare, form suit portion between backing ring and the draw-in groove, outside suit portion was located to mounting bracket and packing ring all cover, the both sides of mounting bracket contradict with backing ring and packing ring respectively.

Further, the trolley body comprises a bearing part and a hand-push part connected with the bearing part.

Further, the screw is of one-piece construction with the sleeve.

The utility model has the beneficial effects that: the utility model provides a handcart with brake, its includes the hand push automobile body and rotates respectively and connects front wheel subassembly and the rear wheel subassembly in the bottom of hand push automobile body, the rear wheel subassembly is including rotating the back pivot of connecting in the hand push automobile body, set up respectively in two screw rods at the both ends of back pivot, suit in the outer rear wheel of screw rod, with screw rod threaded connection and be used for spacing the rear wheel in the epaxial nut structure of back pivot, connect in the mounting bracket of nut structure and hand push automobile body, be connected with nut structure detachably and be used for with the mounting bracket lock solid in the lock solid subassembly of nut structure and install the brake in the mounting bracket, the brake is used for braking the rear wheel. The brake device can brake the rear wheel, has a brake function and good safety performance, and the nut structure can be in threaded connection with the screw rod to limit the rear wheel on the rear rotating shaft and can also mount and fix the mounting frame, so that the brake device is convenient to mount and dismount and maintain, and the mounting and dismounting steps of the trolley are simplified.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a partial cross-sectional view of the present invention.

Fig. 3 is a schematic perspective view of the nut structure of the present invention.

Fig. 4 is a perspective view of another perspective of the nut structure of the present invention.

Description of reference numerals:

1. a nut structure; 11. a threaded member; 12. a sleeve; 13. a threaded hole; 14. a through hole; 15. a backing ring; 16. a card slot; 17. a sheathing part; 2. the cart body is pushed by hand; 21. a bearing part; 22. a hand-pushing part; 3. a front wheel assembly; 4. a rear wheel assembly; 41. a rear rotating shaft; 42. a screw; 43. a rear wheel; 44. a mounting frame; 45. a locking assembly; 46. a brake; 5. a limiting step; 6. a gasket; 7. and a clamp spring.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1 to 4, the cart with brake provided by the present invention comprises a cart body 2, a front wheel assembly 3 and a rear wheel assembly 4 rotatably connected to the bottom of the cart body 2, respectively, wherein the rear wheel assembly 4 comprises a rear rotating shaft 41 rotatably connected to the cart body 2, two screw rods 42 respectively disposed at two ends of the rear rotating shaft 41, a rear wheel 43 sleeved outside the screw rods 42, a nut structure 1 in threaded connection with the screw rods 42 and used for limiting the rear wheel 43 on the rear rotating shaft 41, a mounting bracket 44 connected to the nut structure 1 and the cart body 2, a locking assembly 45 detachably connected to the nut structure 1 and used for locking the mounting bracket 44 to the nut structure 1, and a brake 46 mounted on the mounting bracket 44, wherein the brake 46 is used for braking the rear wheel 43. The utility model can brake the rear wheel 43, has a braking function and good safety performance, and the nut structure 1 can be in threaded connection with the screw rod 42 to limit the rear wheel 43 on the rear rotating shaft 41 and can also mount and fix the mounting frame 44, so that the brake 46 is convenient to mount and dismount and maintain, and the mounting and dismounting steps of the trolley are simplified.

Specifically, the brake 46 is an electric brake device, and the brake 46 can be controlled by remote control.

In this embodiment, the brake shaft of the brake 46 is arranged corresponding to the hub of the rear wheel 43; the brake shaft of the brake 46 acts on the hub of the rear wheel 43 to brake the rear wheel 43; preferably, the brake shaft of the brake 46 extends into the hub bore of the rear wheel 43.

In this embodiment, a position limiting step 5 is disposed at a connection position of the rear rotating shaft 41 and the screw rod 42, and the rear wheel 43 abuts against the position limiting step 5. The rear wheel 43 is locked on the rear rotating shaft 41 through the matching of the limiting step 5 and the nut structure 1, and the working stability of the rear wheel 43 is improved.

In this embodiment, the nut structure 1 includes a threaded member 11 and a sleeve 12 connected to the threaded member 11, the threaded member 11 is provided with a threaded hole 13, the threaded hole 13 is coaxially communicated with a through hole 14 of the sleeve 12, the threaded hole 13 is in threaded connection with a screw 42, a top end of the mounting bracket 44 is fixedly connected to the cart body 2, a bottom end of the mounting bracket 44 is sleeved outside the sleeve 12, and the locking assembly 45 is used for limiting the mounting bracket 44 on the sleeve 12; specifically, a clamping groove 16 is formed in one end, away from the threaded part 11, of the sleeve 12, the locking assembly 45 comprises a gasket 6 and a clamp spring 7, the gasket 6 is sleeved outside the sleeve 12, the clamp spring 7 is clamped with the clamping groove 16, and the gasket 6 is clamped between the clamp spring 7 and the mounting frame 44; the protruding backing ring 15 that is equipped with of one end that the sleeve 12 is close to screw member 11, backing ring 15 is connected with screw member 11, form suit portion 17 between backing ring 15 and the draw-in groove 16, outside suit portion 17 was all located to mounting bracket 44 and packing ring 6 cover, the both sides of mounting bracket 44 contradict with backing ring 15 and packing ring 6 respectively.

During assembly, the rear wheel 43 is sleeved outside the screw rod 42 and abutted against the limiting step 5, and then is in threaded connection with the screw rod 42 through the threaded hole 13 of the threaded part 11, so that the rear wheel 43 is locked on the screw rod 42 by the nut structure 1, the screw rod 42 can extend into the through hole 14 in a protruding manner, the through hole 14 provides an avoiding space for the end part of the screw rod 42, the situation that the threaded part 11 cannot be locked due to the overlong length of the screw rod 42 is avoided, and the rear wheel can be matched with the screw rods 42 with different lengths for use; after nut structure 1 installs on screw rod 42, the bottom suit of mounting bracket 44 is outside the suit portion 17 of sleeve 12, contradict until mounting bracket 44 and backing ring 15, backing ring 15 separates mounting bracket 44 and screw member 11, avoid mounting bracket 44 and screw member 11 direct contact and wearing and tearing each other, after that, suit packing ring 6 outside suit portion 17, establish in order to lock mounting bracket 44 and gasket on nut structure 1 in draw-in groove 16 through jump ring 7 card at last, in order to realize carrying out fixed mounting to mounting bracket 44, the top of mounting bracket 44 is via the bolt lock solid on handcart body 2, brake 46 installs on mounting bracket 44. This structural design not only can pay nut structure 1 lock on screw rod 42, can also carry out fixed mounting to mounting bracket 44, and the dismouting is convenient with the maintenance.

In this embodiment, the cart body 2 includes a bearing portion 21 and a hand-push portion 22 connected to the bearing portion 21, and the hand-push portion 22 is used for a user to push the cart to move.

Specifically, the screw 11 is a regular polygonal nut; preferably, the regular polygon nut is a hexagon nut; this structural design not only makes nut structure 1's appearance pleasing to the eye, still is convenient for twist nut structure 1, and the simple operation, labour saving and time saving.

In this embodiment, the screw member 11 and the sleeve 12 are constructed as an integral structure, so that the nut structure 1 is convenient to produce and manufacture, the structural stability of the nut structure 1 is improved, and the strength and the hardness are high.

All the technical features in the embodiment can be freely combined according to actual needs.

The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.

Claims

1. A handcart with brake, its characterized in that: including the hand push automobile body and rotate respectively and connect front wheel subassembly and the rear wheel subassembly in the bottom of hand push automobile body, the rear wheel subassembly is including rotating the back pivot of connecting in the hand push automobile body, set up respectively in two screw rods at the both ends of back pivot, suit in the outer back wheel of screw rod, be used for with screw rod threaded connection with the spacing nut structure in the pivot of back wheel, connect in the mounting bracket of nut structure and hand push automobile body, be connected with nut structure detachably and be used for with the mounting bracket lock solid in the lock solid subassembly of nut structure and install the brake in the mounting bracket, the brake is used for braking the back wheel.

2. A trolley with brakes according to claim 1, characterized in that: and a brake shaft of the brake is arranged corresponding to a hub of the rear wheel.

3. A trolley with brakes according to claim 1, characterized in that: the junction of back pivot and screw is provided with spacing step, the back wheel is contradicted with spacing step.

4. A trolley with brakes according to claim 1, characterized in that: the nut structure includes screw thread spare and the sleeve of being connected with the screw thread spare, the screw thread spare is provided with the screw hole, screw hole and the coaxial intercommunication of telescopic through-hole, screw hole and screw rod threaded connection, the top and the handcart body fixed connection of mounting bracket, outside the sleeve was located to the bottom cover of mounting bracket, the lock solid subassembly is used for spacing the mounting bracket on the sleeve.

5. A trolley with brakes according to claim 4, characterized in that: the one end that the screw thread spare was kept away from to the sleeve is provided with the draw-in groove, the lock solid subassembly includes packing ring and jump ring, outside the packing ring set up in the sleeve, jump ring and draw-in groove joint, the packing ring presss from both sides and locates between jump ring and the mounting bracket.

6. A trolley with brakes according to claim 5, characterized in that: the sleeve is close to the protruding backing ring that is equipped with of one end of screw spare, the backing ring is connected with the screw spare, form suit portion between backing ring and the draw-in groove, outside suit portion was located to mounting bracket and packing ring all cover, the both sides of mounting bracket contradict with backing ring and packing ring respectively.

7. A trolley with brakes according to claim 1, characterized in that: the handcart body comprises a bearing part and a hand-push part connected with the bearing part.

8. A trolley with brakes according to claim 4, characterized in that: the screw and the sleeve are of an integrated structure.