CN217804882U

CN217804882U - Universal positioning structure for front wheel of handcart

Info

Publication number: CN217804882U
Application number: CN202221631906.XU
Authority: CN
Inventors: 孙建锋
Original assignee: Cixi Honeyway Baby Products Co ltd
Current assignee: Cixi Honeyway Baby Products Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-11-15
Anticipated expiration: 2032-06-27

Abstract

The utility model discloses a universal positioning structure for the front wheel of a handcart, which relates to the technical field of the handcart and comprises a front wheel positioned on a frame; the frame is fixed with an installation sleeve, the installation sleeve is sleeved on the rotating shaft sleeve, the rotating shaft rod of the front wheel is inserted into the rotating shaft sleeve, the front wheel disc on the front wheel is adjacent to the rotating shaft sleeve, the clip button is matched on the clip groove of the rotating shaft rod, a first elastic piece is supported between the clip button and the rotating shaft sleeve, an insertion rod is further arranged in a perforation of the rotating shaft sleeve, a second elastic piece, a pressing block and a lifting insertion rod sliding block are arranged on the insertion rod, the lifting insertion rod sliding block is pushed, and the lifting insertion rod sliding block pushes the insertion rod to be separated from or inserted into a jack of the front wheel disc. The utility model can disassemble the front wheel from the frame by pressing the clip button; the front wheel can be limited to rotate or be fixed by pushing the lifting inserted link sliding block. Simple structure and low manufacturing cost.

Description

Universal positioning structure for front wheel of handcart

Technical Field

The utility model relates to a handcart technical field, specifically speaking relates to an universal location structure of handcart front wheel.

Background

Similar prior art cart front wheel universal alignment structures are disclosed in the following patent documents.

Chinese utility model patent specification CN 213921184U (published 2021 at 08 months and 10 days) discloses a cart, which comprises a frame, wheels arranged on the frame, a rotating shaft and a directional/universal conversion assembly; the wheels are rotatably arranged on the wheel frame, and the wheel frame is detachably arranged on the frame; the rotating shaft penetrates through the wheel frame and the frame at the same time, so that the wheel frame and the frame can rotate relatively; the directional/universal conversion assembly comprises a driving part and a locking part, wherein the locking part can be movably arranged on either one of the wheel frame and the frame, and the locking part has at least two motion states under the driving of the driving part, one is that the locking part is completely positioned on either one of the wheel frame and the frame where the locking part is arranged, the other is that the locking part is positioned on both the wheel frame and the frame, and in the latter motion state, the wheel frame and the frame cannot rotate relatively; the wheels can be freely switched between the orientation state and the universal conversion state, the design is reasonable, and the wheel can be suitable for more living occasions.

However, the above disclosed directional/gimbal assemblies are complex and expensive to manufacture.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a universal location structure of handcart front wheel to overcome the directional/universal conversion subassembly structure of shallow among the prior art complicacy, defect that manufacturing cost is high.

In order to solve the technical problem, the universal positioning structure for the front wheel of the handcart comprises a front wheel positioned on a frame; the frame is fixed with an installation sleeve, a rotating shaft sleeve is sleeved in the installation sleeve, a rotating shaft rod of the front wheel is inserted into the rotating shaft sleeve, a front wheel disc on the front wheel is adjacent to the rotating shaft sleeve, the clip button is matched on a clip groove of the rotating shaft rod, a first elastic piece is supported between the clip button and the rotating shaft sleeve, an insertion rod is further arranged in a perforation of the rotating shaft sleeve, a second elastic piece, a pressing block and a lifting insertion rod sliding block are arranged on the insertion rod, the lifting insertion rod sliding block is pushed, and the lifting insertion rod sliding block pushes the insertion rod to be separated from or inserted into a jack of the front wheel disc.

The rotating shaft sleeve is further matched with a rotating cover, and the rotating cover is used for pushing the lifting inserted bar sliding block to slide.

The rotating cover is provided with a ring body, the bottom of the ring body is provided with a moving rod and a lifting inserted link sliding block groove, the moving rod moves on the arc-shaped groove of the rotating shaft sleeve, and the lifting inserted link sliding block groove is matched in the lifting inserted link sliding block.

The lifting inserted bar sliding block is an arc-shaped body with a circular arc groove, and the arc-shaped body is provided with a bottom end face, an inclined face and a top end face.

The inserted bar is provided with a bar head, a bar body and a plug, the diameter of the bar head or the plug is larger than that of the bar body, and the size of the bar body can just penetrate through the arc-shaped groove.

Wherein the second elastic piece is positioned between the plug and the pressing piece.

Wherein, the briquetting is fixed in perforation upper portion.

Wherein the through hole is arranged opposite to the jack.

The top of the rotating shaft sleeve is covered with a cap, and the clip-shaped button extends out of the cap.

The first elastic piece is a first spring, and the second elastic piece is a second spring.

Compared with the prior art, the utility model has the advantages that the front wheel can be detached from the frame by pressing the clip button; the front wheel can be limited to rotate or be fixed by pushing the lifting inserted link sliding block. Simple structure and low manufacturing cost.

Drawings

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

FIG. 2 is a schematic perspective view of the front wheel universal positioning structure of the cart of the present invention;

FIG. 3 is a schematic view of the universal positioning structure of the front wheel of the cart according to the present invention;

FIG. 4 is a schematic view of the universal positioning structure of the front wheel of the cart according to the present invention;

FIG. 5 is a schematic view of a first exploded view of the universal positioning structure of the front wheel of the stroller of the present invention;

FIG. 6 is a second partial exploded view of the universal positioning structure for the front wheel of the stroller of the present invention;

FIG. 7 is a schematic view of a third partial exploded view of the universal positioning structure for the front wheel of the cart of the present invention;

FIG. 8 is a schematic view of a fourth partial exploded view of the universal positioning structure for the front wheel of the stroller of the present invention;

FIG. 9 is a schematic view of a fifth exploded view of a part of the universal positioning structure of the front wheel of the cart of the present invention;

fig. 10 is a schematic view of a partial structure of the universal positioning structure for the front wheel of the cart of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 10, the cart of the present embodiment includes a front wheel 2 located on a front portion of a frame 1 and a rear wheel 3 located on a rear portion; the front end of the frame is fixedly provided with a mounting sleeve 4, a rotating shaft sleeve 5 is fixedly sleeved in the mounting sleeve, a rotating shaft rod 6 of the front wheel is inserted on the rotating shaft sleeve, the top surface of a front wheel disc 7 on the front wheel is adjacent to the bottom surface of the rotating shaft sleeve, a clip button 8 is matched on a clip groove 9 of the rotating shaft rod, a first spring 10 is abutted between the clip button and the rotating shaft sleeve, and particularly, when the clip button is pressed, the clip button is separated from the clip groove, so that the front wheel is pulled out from the rotating shaft sleeve for dismounting; when the clip button loses the pressing force, the clip button is reset by the first spring, and the clip button is clamped on the clip groove to realize the quick installation of the front wheel. Furthermore, the top of the rotating shaft sleeve is covered with a cover cap 11, and the clip-shaped button extends out of the cover cap. An inserting rod 13 is further arranged in the through hole 12 of the rotating shaft sleeve, a second spring 14, a pressing block 15 and a lifting inserting rod sliding block 16 are arranged on the inserting rod, the second spring is located between the plug 17 and the pressing block, and the pressing block is fixed to the upper portion of the through hole. The rotating shaft sleeve is further matched with a rotating cover 18, the rotating cover is provided with a ring body 19, the bottom of the ring body is provided with a moving rod 20 and a lifting inserted link slider groove 21, the moving rod moves on an arc-shaped groove 22 of the rotating shaft sleeve, and the lifting inserted link slider groove is matched in the lifting inserted link slider. The lifting plunger slide is an arc-shaped body 24 with a circular arc groove 23, and the arc-shaped body is provided with a bottom end surface 25, an inclined surface 26 and a top end surface 27. The inserted bar is provided with a bar head 28, a bar body 29 and a plug 17, the diameter of the bar head or the plug is larger than that of the bar body, and the size of the bar body can just penetrate through the arc-shaped groove. The through-hole is disposed opposite to the insertion hole 30. The rotary cover is used for pushing the lifting inserted link sliding block to slide, and the lifting inserted link sliding block pushes the inserted link to be separated from or inserted into the insertion hole of the front wheel disc.

When the front wheel was installed to this embodiment, insert the pivot cover the pivot pole of front wheel in the shaft hole, because the pivot pole upper end has the italic and is equipped with first spring on the shape button of returning, consequently, can the pivot pole push back the shape button and push away when the pivot pole takes place to interfere with the shape button of returning, until preceding rim plate top surface and the contact of pivot cover bottom surface, at this moment, it is relative with returning the shape groove also to return the shape button, it receives the influence of first spring resilience force to return the shape button, it just can block in returning the shape inslot to return the shape button, realize the quick installation of front wheel. When the front wheel is disassembled, the clip-shaped button is pressed, and the clip-shaped button is separated from the clip-shaped groove, so that the rotating shaft rod of the front wheel is pulled out from the rotating shaft sleeve.

When the front wheel needs to be fixed in an oriented mode, the inserting rod is inserted into the inserting hole of the front wheel disc in an aligning mode when the front wheel is installed; when the front wheel needs universal rotation, anticlockwise rotation swivel cap, at this moment, the motion lever moves in the arc wall within range of pivot cover, because promote the inserted bar slider and be located and promote the inserted bar slider groove, consequently promote the inserted bar slider also can rotate along with the swivel cap, when promoting the inserted bar slider pivoted, the inserted bar also can slide the inclined plane from the bottom face until to the terminal surface, and the inserted bar breaks away from in the jack of preceding rim plate this moment to realize the universal rotation of front wheel. The rotating cover is rotated clockwise, the inserted link can slide to the inclined plane from the top end face until the end face, and the inserted link is inserted into the jack of the front wheel disc at the moment under the influence of the resilience force of the second spring, so that the directional fixation of the front wheel is realized.

The front wheel can be detached from the frame by pressing the clip button; the front wheel can be limited to rotate or be fixed by pushing the lifting inserted bar sliding block. Simple structure and low manufacturing cost.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and embellishments can be made without departing from the technical principle of the present invention, and these improvements and embellishments should also be regarded as the protection scope of the present invention.

Claims

1. A universal positioning structure for the front wheel of a handcart comprises a front wheel arranged on a frame; the method is characterized in that: the frame is fixed with an installation sleeve, a rotating shaft sleeve is sleeved in the installation sleeve, a rotating shaft rod of the front wheel is inserted into the rotating shaft sleeve, a front wheel disc on the front wheel is adjacent to the rotating shaft sleeve, the clip button is matched on a clip groove of the rotating shaft rod, a first elastic piece is supported between the clip button and the rotating shaft sleeve, an insertion rod is further arranged in a perforation of the rotating shaft sleeve, a second elastic piece, a pressing block and a lifting insertion rod sliding block are arranged on the insertion rod, the lifting insertion rod sliding block is pushed, and the lifting insertion rod sliding block pushes the insertion rod to be separated from or inserted into a jack of the front wheel disc.

2. The cart front wheel universal positioning structure of claim 1, wherein: the rotating shaft sleeve is further matched with a rotating cover, and the rotating cover is used for pushing the lifting inserted bar sliding block to slide.

3. The cart front wheel universal positioning structure of claim 2, wherein: the rotating cover is provided with a ring body, the bottom of the ring body is provided with a moving rod and a lifting inserted link sliding block groove, the moving rod moves on the arc-shaped groove of the rotating shaft sleeve, and the lifting inserted link sliding block groove is matched in the lifting inserted link sliding block.

4. The cart front wheel universal positioning structure of claim 1, wherein: the lifting inserted bar sliding block is an arc-shaped body with a circular arc groove, and the arc-shaped body is provided with a bottom end face, an inclined face and a top end face.

5. The cart front wheel universal positioning structure of claim 4, wherein: the inserted bar is provided with a bar head, a bar body and a plug, the diameter of the bar head or the plug is larger than that of the bar body, and the size of the bar body can just penetrate through the square-shaped arc groove.

6. The cart front wheel universal positioning structure of claim 5, wherein: the second elastic piece is positioned between the plug and the pressing piece.

7. The cart front wheel universal positioning structure according to claim 1, wherein: the pressing block is fixed on the upper part of the through hole.

8. The cart front wheel universal positioning structure of claim 1, wherein: the through hole is opposite to the jack.

9. The cart front wheel universal positioning structure of claim 1, wherein: the top of the rotating shaft sleeve is also covered with a cap, and the clip-shaped button extends out of the cap.

10. The cart front wheel universal positioning structure according to any one of claims 1 to 9, wherein: the first elastic piece is a first spring, and the second elastic piece is a second spring.