CN215553485U

CN215553485U - Handcart wheel is with preventing swift current car structure

Info

Publication number: CN215553485U
Application number: CN202122395739.5U
Authority: CN
Inventors: 张建波; 张雷霞
Original assignee: Qingdao Dongxu Steel Plastic Products Co ltd
Current assignee: Qingdao Dongxu Steel Plastic Products Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-01-18
Anticipated expiration: 2031-09-30

Abstract

The utility model provides an anti-sliding structure for wheels of a trolley. The automobile wheel hub limiting device comprises a vehicle frame, the limiting groove has been seted up to the outer wall of frame, and the quantity of limiting groove is two, two the inside equal block of limiting groove has the slider of looks adaptation, two the equal threaded connection of outer wall of slider has the bolt, the externally mounted of frame has arrestment mechanism, wheel hub is installed to the inner wall of frame, wheel hub's outside cover is equipped with the tire. The utility model provides an anti-slipping structure for wheels of a trolley, which is provided with a braking mechanism, wherein the ratchet wheels and the ratchet teeth are meshed and matched with each other, so that slipping of the trolley can be prevented when the wheels move on a ramp, the wheels can be braked and locked on flat ground through the designed semicircular locking teeth, and meanwhile, the wheel hubs and the ratchet wheels can be stably connected with a frame in a spline fit connection mode, so that the wheel hubs can be effectively prevented from falling off, and the effect of uniform stress is achieved.

Description

Handcart wheel is with preventing swift current car structure

Technical Field

The utility model relates to the technical field of trolley wheels, in particular to an anti-sliding structure for trolley wheels.

Background

The wheel is a rigid wheel which holds the inner edge of the tire, supports the tire, and bears the load together with the tire, and the tire, rim, and spoke combined together are also collectively referred to as a wheel. The wheel assembly is composed of two parts, namely a wheel and a tire, along with the development of the modern transportation industry, the utilization rate of tool wheels is higher and higher, but an anti-rolling structure is required to be used for braking in the use of the wheels.

The handcart wheel on the existing market is with preventing swift current car structure exists in the installation in use, and the wheel adopts the formula of stepping on to brake more, and such braking effect is very not good to still lead to swift current car on the ramp very easily, and can not stabilize and assemble wheel hub and frame, cause wheel hub to drop easily and the inhomogeneous problem of atress.

Therefore, it is necessary to provide an anti-sliding structure for a trolley wheel to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides an anti-slipping structure for a wheel of a trolley, which solves the problems that the braking effect is very poor due to the fact that the wheel is braked in a treading mode, slipping on a slope is easily caused, a wheel hub cannot be stably assembled with a frame, the wheel hub is easy to fall off, and the stress is uneven.

In order to solve the technical problems, the anti-slipping structure for the wheels of the trolley comprises a trolley frame, wherein two limiting grooves are formed in the outer wall of the trolley frame, the inner parts of the two limiting grooves are clamped with matched sliding blocks, the outer walls of the two sliding blocks are in threaded connection with bolts, a braking mechanism is arranged outside the trolley frame, a ratchet wheel is arranged on one side, opposite to the two limiting grooves, of the outer wall of the trolley frame, a wheel hub is arranged on the inner wall of the trolley frame, a tire is sleeved outside the wheel hub, a mounting hole is formed in the axis of the wheel hub, a clamping block is arranged inside the mounting hole, a rotary cover is arranged on the outer wall of the clamping block, a limiting hole is formed in the axis of the ratchet wheel, a clamping rod is arranged inside the limiting hole, and a bearing is arranged inside the trolley frame.

Preferably, the clamping block is connected with the hub through a spline, and the screw cap is fixedly installed on the clamping block through threads.

Preferably, one end of the clamping rod is connected with the ratchet wheel through a spline, the other end of the clamping rod penetrates through the inner ring of the bearing and is fixedly installed with the clamping block through threads, and the outer ring of the bearing is riveted with the frame.

Preferably, the arresting gear is including being fixed in two the snap ring of slider outer wall, the semicircle lock tooth has been seted up to the inner wall of snap ring, the inner wall of snap ring just is located the horizontal direction of semicircle lock tooth and installs the free bearing, the internally mounted of free bearing has the ratchet, ratchet and the relative one side of snap ring inner wall are fixed with the spring.

Preferably, the clamping ring forms a sliding structure with the frame by using the matching between the two sliding blocks and the two limiting grooves, and the ratchet wheel is meshed with the ratchet.

Preferably, the semicircular locking teeth are matched with the ratchet wheel, and the ratchet wheel is elastically reset through the spring and the clamping ring.

Compared with the related art, the anti-rolling structure for the wheels of the trolley provided by the utility model has the following beneficial effects:

this structural design has arrestment mechanism, through carrying out the intermeshing cooperation between ratchet and the ratchet to can prevent the swift current car when making the wheel move on the ramp, and still can make this wheel also can brake the locking through the semicircle lock tooth of design and prevent the swift current car on the level land, wheel hub, ratchet that the mode through spline fit connection can make simultaneously are stable to be connected with the frame, can effectively prevent that wheel hub from droing, have still played the even effect of atress.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of an anti-rolling structure for wheels of a cart according to the present invention;

FIG. 2 is a schematic view of the back side view structure shown in FIG. 1;

FIG. 3 is a schematic view of the hub and ratchet wheel shown in FIG. 1;

fig. 4 is a schematic structural view of the braking mechanism shown in fig. 1.

Reference numbers in the figures: 1. a frame; 2. a limiting groove; 3. a slider; 4. a bolt; 5. a brake mechanism; 51. a snap ring; 52. a semicircular lock tooth; 53. hinging seat; 54. a ratchet; 55. a spring; 6. a ratchet wheel; 7. a hub; 8. a tire; 9. mounting holes; 10. a clamping block; 11. screwing a cover; 12. a limiting hole; 13. a clamping rod; 14. and a bearing.

Detailed Description

The utility model is further described with reference to the following figures and embodiments.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a schematic structural view of a preferred embodiment of an anti-rolling structure for wheels of a cart according to the present invention; FIG. 2 is a schematic view of the back side view structure shown in FIG. 1; FIG. 3 is a schematic view of the hub and ratchet wheel shown in FIG. 1; fig. 4 is a schematic structural view of the braking mechanism shown in fig. 1. The utility model provides a handcart wheel is with preventing swift current car structure, which comprises a vehicle rack 1, spacing groove 2 has been seted up to the outer wall of frame 1, and the quantity of spacing groove 2 is two, the equal block in inside of two spacing grooves 2 has the slider 3 of looks adaptation, the equal threaded connection of outer wall of two sliders 3 has bolt 4, the externally mounted of frame 1 has arrestment mechanism 5, ratchet 6 is installed to the outer wall of frame 1 and the relative one side that is located two spacing grooves 2, wheel hub 7 is installed to the inner wall of frame 1, the outside cover of wheel hub 7 is equipped with tire 8, mounting hole 9 has been seted up to wheel hub 7's axle center department, the internally mounted of mounting hole 9 has fixture block 10, spiral cover 11 is installed to the outer wall of fixture block 10, spacing hole 12 has been seted up to ratchet 6's axle center department, the internally mounted of spacing hole 12 has kelly 13, the internally mounted of frame 1 has bearing 14.

The clamping block 10 is connected with the hub 7 through a spline, the screw cap 11 is fixedly installed with the clamping block 10 through threads, and the screw cap 11 plays a role in fixedly installing the hub 7 and the clamping block 10.

One end of the clamping rod 13 is connected with the ratchet wheel 6 through a spline, the other end of the clamping rod 13 penetrates through the inner ring of the bearing 14 and is fixedly installed with the clamping block 10 through threads, the outer ring of the bearing 14 is riveted with the frame 1, and the clamping rod has the advantages of being stable in connection and even in stress through a spline connection mode.

The braking mechanism 5 comprises a clamping ring 51 fixed on the outer walls of the two sliding blocks 3, the inner wall of the clamping ring 51 is provided with semicircular locking teeth 52, the inner wall of the clamping ring 51 is provided with a hinged support 53 in the horizontal direction of the semicircular locking teeth 52, a ratchet 54 is arranged inside the hinged support 53, and a spring 55 is fixed on one side of the ratchet 54 opposite to the inner wall of the clamping ring 51.

The snap ring 51 forms a sliding structure with the frame 1 by using the matching between the two sliding blocks 3 and the two limiting grooves 2, and the ratchet 6 and the ratchet 54 are mutually meshed, so that the snap ring 51 can perform free sliding motion in the limiting grooves 2.

The semicircular locking teeth 52 are matched with the ratchet 6, and the ratchet 54 is elastically restored through the spring 55 and the clamping ring 51.

The working principle of the anti-sliding structure for the wheels of the trolley provided by the utility model is as follows:

firstly, before use, the hub 7 and the ratchet 6 are required to be assembled with the frame 1, a user firstly clamps the fixture block 10 in the mounting hole 9, then the fixture block 10 and the hub 7 are completely mounted, after the mounting is completed, the screw cap 11 is screwed into the outer wall of the fixture block 10, then the clamping rod 13 is inserted into the limiting hole 12 in the ratchet 6, one end of the clamping rod 13 is attached to the inner wall of the fixture block 10 by penetrating through the inner ring of the bearing 14, after the attachment is completed, the whole hub 7 is rotated to connect the clamping rod 13 with the fixture block 10, so that the hub 7 and the ratchet 6 are assembled with the frame 1, after the mounting, the frame 1 can be pushed to enable the tire 8 to rotate, the tire 8 can rotate anticlockwise with the ratchet 6 on an uphill slope, so that flat teeth on the ratchet 6 can be abutted against the ratchets 54 to perform compression movement through the springs 55, and the ratchet 6 can normally rotate, when the vehicle needs to stop on a slope, the tire 8 can carry the ratchet 54 to rotate reversely, the ratchet 6 is convenient for the ratchet 54 to be blocked to prevent the vehicle from sliding on the slope, if braking is carried out on a flat ground, a user can slide the clamp ring 51 to carry the semicircular locking teeth 52 to be matched with the teeth on the ratchet 6, and the rotating bolt 4 is fastened after the matching is completed, so that the tire 8 can be blocked to brake in spite of the forward and reverse rotation, and if the braking is not needed, the user can slide the clamp ring 51 to enable the ratchet 54 and the semicircular locking teeth 52 not to be in contact with the ratchet 6, so that free rotating motion can be carried out.

this structural design has arrestment mechanism 5, through carrying out the intermeshing cooperation between ratchet 6 and the ratchet 54, thereby can prevent the swift current car when making the wheel move on the ramp, and still can make this wheel also can brake the locking through the semicircle lock tooth 52 that designs and prevent the swift current car on the level land, wheel hub 7 that the mode that connects through the spline fit simultaneously can make, ratchet 6 is stable is connected with frame 1, can prevent effectively that wheel hub 7 from droing, has still played the even effect of atress.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a handcart wheel is with preventing swift current car structure, includes frame (1), its characterized in that: the outer wall of the frame (1) is provided with two limiting grooves (2), the number of the limiting grooves (2) is two, the inner parts of the two limiting grooves (2) are clamped with the sliding blocks (3) which are matched, the outer walls of the two sliding blocks (3) are in threaded connection with the bolts (4), the outer part of the frame (1) is provided with the brake mechanism (5), the outer wall of the frame (1) is positioned at one opposite side of the two limiting grooves (2) and is provided with the ratchet wheel (6), the inner wall of the frame (1) is provided with the wheel hub (7), the outer part of the wheel hub (7) is sleeved with the tire (8), the axle center of the wheel hub (7) is provided with the mounting hole (9), the inner part of the mounting hole (9) is provided with the fixture block (10), the outer wall of the fixture block (10) is provided with the rotary cover (11), the axle center of the ratchet wheel (6) is provided with the limiting hole (12), the inside of spacing hole (12) is installed kelly (13), the internally mounted of frame (1) has bearing (14).

2. A wheel slide preventing structure of a handcart according to claim 1, wherein the fixture block (10) is connected with the hub (7) by spline, and the screw cap (11) is fixedly installed with the fixture block (10) by using screw thread.

3. A handcart wheel anti-rolling structure according to claim 1, characterized in that one end of said clamping rod (13) is connected with ratchet wheel (6) by spline, the other end of said clamping rod (13) is through the inner ring of bearing (14) and fixed with clamping block (10) by using screw thread, the outer ring of said bearing (14) is riveted with frame (1).

4. A cart wheel anti-rolling structure according to claim 1, wherein the braking mechanism (5) comprises a snap ring (51) fixed on the outer wall of the two sliding blocks (3), a semicircular locking tooth (52) is formed on the inner wall of the snap ring (51), a hinge base (53) is installed on the inner wall of the snap ring (51) and located in the horizontal direction of the semicircular locking tooth (52), a ratchet (54) is installed inside the hinge base (53), and a spring (55) is fixed on the side of the ratchet (54) opposite to the inner wall of the snap ring (51).

5. A wheel slide prevention structure of a handcart according to claim 4, characterized in that the said snap ring (51) is a sliding structure with the frame (1) by using the cooperation between two said sliding blocks (3) and two limiting grooves (2), the said ratchet wheel (6) and ratchet (54) are engaged with each other.

6. A cart wheel anti-roll structure according to claim 4, characterized in that the semi-circular locking teeth (52) are fitted with the ratchet wheel (6), and the ratchet teeth (54) are elastically restored by the spring (55) and the snap ring (51).