CN215904514U - Golf cart - Google Patents

Abstract

The utility model discloses a golf cart, which comprises a cart frame with an unfolding state and a folding state, a front wheel assembly and a rear wheel assembly which are arranged at the bottom of the cart frame, and a locking mechanism for locking the cart frame in the unfolding state, wherein the cart frame comprises: the push rod comprises a bottom bracket, a push rod frame, a push handle frame and two groups of rear wheel brackets, wherein the bottom bracket extends along the front-back direction, and the front wheel assembly is arranged at the front part of the bottom bracket; the push rod frame extends along the up-down direction, the lower part of the push rod frame is rotationally connected to the rear part of the bottom bracket through a rotating shaft, and the push handle frame is connected to the upper part of the push rod frame and can be arranged relative to the push rod frame in a folding mode. The golf cart frame can be folded upwards in height, width and length, is simple and convenient to fold, has a small folding volume, and is convenient to store and carry.

Description

Golf cart

Technical Field

The utility model relates to a golf cart.

Background

Among the prior art, golf cart's structure is various, and its folding principle is also diverse, and most golf carts need a plurality of steps just can accomplish folding, and the operation is comparatively loaded down with trivial details, and the frame can only realize folding up in one or two directions such as height, length, and folding back volume is still great, portable and storage not convenient.

Disclosure of Invention

The utility model aims to provide a golf cart which is simple and convenient to fold and small in folding volume.

In order to achieve the purpose, the utility model adopts the technical scheme that: a golf cart, comprising a cart frame having an unfolded state and a folded state, a front wheel assembly and a rear wheel assembly provided at the bottom of the cart frame, and a locking mechanism for locking the cart frame in the unfolded state, the cart frame in the unfolded state comprising:

the push rod comprises a bottom bracket, a push rod frame, a push handle frame and two groups of rear wheel brackets, wherein the bottom bracket extends along the front-back direction, and the front wheel assembly is arranged at the front part of the bottom bracket; the push rod frame extends along the up-down direction, the lower part of the push rod frame is rotationally connected to the rear part of the bottom bracket through a rotating shaft, and the push handle frame is connected to the upper part of the push rod frame and can be folded relative to the push rod frame;

the two groups of rear wheel brackets are respectively arranged at the left side and the right side of the bottom bracket, each group of rear wheel brackets at least has a rear wheel supporting rod of which one end is provided with the rear wheel assembly, and the rear wheel supporting rods are rotationally connected to the bottom bracket; the frame still including can follow the fore-and-aft direction and set up with sliding on the bottom bracket and by the gliding slider of drive when the push rod frame rotates, slider and both sides all be equipped with between the rear wheel branch and be used for when the slider slides order about the rear wheel branch is relative bottom bracket pivoted drive assembly.

Preferably, the driving assembly comprises a gear fixedly arranged at the end of the rear wheel supporting rod and a rack arranged on the sliding part, the rotating center line of the gear and the rotating center line of the rear wheel supporting rod rotating relative to the bottom bracket extend in a collinear manner, the length extending direction of the rack extends along the sliding direction of the sliding part, and the gear and the rack are arranged in an intermeshing manner.

Further, the racks are respectively arranged on the left side and the right side of the sliding direction of the sliding part, and the racks on the two sides are fixed on the sliding part or integrally arranged with the sliding part.

Furthermore, the sliding part comprises a sliding base and a rack block fixedly arranged on the sliding base, a group of racks is respectively formed on two side parts of the rack block, the outer side edge part of each rack is positioned on the inner side of the outer side edge part of the sliding base, and the sliding base is connected with the bottom support in a sliding fit manner.

Preferably, the sliding part comprises a sliding block which can be arranged on the bottom bracket in a sliding fit manner along the front-back direction, and a connecting part which is fixedly arranged at the rear part of the sliding block, and the lower part of the push rod frame is provided with a driving part which is connected with the connecting part and drives the sliding part to move backwards when the push rod frame rotates.

Further preferably, be provided with the connecting pin in the drive division, the axial lead of connecting pin with the axial lead of pivot is parallel to each other, set up on the connecting portion with connecting pin sliding fit's spread groove, the spread groove include the arc slot portion, and with the cooperation slot portion that the arc slot portion meets, the arc slot portion uses the axial lead of pivot is its arc extending direction's central line, the cooperation slot portion extends and is located along upper and lower direction the lower part of arc slot portion.

As a preferred embodiment, one of the bottom bracket and the slider is provided with a guide groove extending in the front-rear direction, the other is provided with a guide pin, the guide pin is slidably inserted into the guide groove, and the bottom bracket is further provided with a limit groove for guiding and limiting the slider in the front-rear direction.

In a preferred embodiment, the rear wheel assembly includes a rear wheel frame, a rear wheel body rotatably mounted on the rear wheel frame about a rear wheel axis, the outer end portion of the rear wheel strut is rotatably connected to the rear wheel frame, and when the frame is in the folded state, the axes of the rear wheel axes on the left and right sides extend parallel to or in line with each other.

Preferably, the rear wheel bracket comprises two rear wheel struts which are arranged in tandem and parallel to each other, the inner ends of the two rear wheel struts are respectively and rotatably connected to the bottom bracket, and the outer ends of the two rear wheel struts are respectively and rotatably connected to the rear wheel carrier.

As a preferred embodiment, during the process of converting the frame from the unfolded state to the folded state, the rear wheel brackets on both sides are folded forward and rotationally toward the bottom bracket, and the two sets of rear wheel bodies are folded on both left and right sides of the bottom bracket.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the golf cart can be folded in the height direction, the width direction and the length direction, is simple and convenient to fold, has a small folding volume and is convenient to store and carry.

Drawings

FIG. 1 is a first schematic three-dimensional view of a golf cart of the present invention in a deployed state;

FIG. 2 is an exploded view of a main body of a golf cart according to the present invention;

FIG. 3 is a schematic view of a main body portion of the golf cart of the present invention in a deployed state;

FIG. 4 is a schematic view of the main body portion of the golf cart of the present invention as it transitions from the unfolded position to the folded position;

FIG. 5 is a schematic view of a frame body portion of the golf cart of the present invention in a collapsed position;

FIG. 6 is a schematic rear view of the golf cart of the present invention in a deployed state;

FIG. 7 is a schematic side view of the golf cart of the present invention in a deployed state;

FIG. 8 is a schematic top view of the golf cart of the present invention in a deployed state;

FIG. 9 is a schematic three-dimensional view of a golf cart according to the present invention in the unfolded state;

FIG. 10 is a rear view of the golf cart of the present invention as it transitions from the unfolded position to the folded position;

FIG. 11 is a schematic side view of the golf cart of the present invention as it transitions from the unfolded position to the folded position;

FIG. 12 is a schematic top view of the golf cart of the present invention as it transitions from the unfolded position to the folded position;

FIG. 13 is a schematic three-dimensional view of the golf cart of the present invention as it transitions from the unfolded position to the folded position;

FIG. 14 is a rear perspective view of the golf cart of the present invention in a collapsed position;

FIG. 15 is a schematic side view of the golf cart of the present invention in a collapsed position;

FIG. 16 is a schematic top view of the golf cart of the present invention in a collapsed position;

FIG. 17 is a schematic three-dimensional view of the golf cart of the present invention in a collapsed position;

wherein: 100. a frame;

1. a bottom bracket; 11. a limiting groove;

2. a push rod frame; 21. a drive section; 211. a connecting seat; 212. a latch bolt; 22. a lower push rod; 23. a push rod is arranged;

3. a handle pushing frame; 31. a push handle;

4. a rear wheel support; 41. a first rear wheel strut; 42. a second rear wheel strut;

5. a slider; 50. a sliding base; 51. a slider; 52. a connecting portion; 521. an arc-shaped groove part; 522. a fitting groove portion; 53. a rack block;

6. a drive assembly; 61. a gear; 62. a rack;

7. a front bracket; 71. a front support rod;

200 of a carrier; a front wheel assembly; 300. a rear wheel assembly; 301. a rear wheel carrier; 302 a rear wheel body;

a. a rotating shaft; b. a first shaft; c. a second shaft; d. a guide pin; e. a connecting pin; f. a rear axle.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the specific embodiments.

The description of the top, bottom, left, right, front, back, inside and outside directions in this document is defined according to the top, bottom, left, right, front, back, inside and outside directions as viewed by the rear walker during normal use of the golf cart.

A golf cart, as shown in FIG. 1, comprises a cart frame 100 having an unfolded state and a folded state, a front wheel assembly 200 and a rear wheel assembly 300 provided at the bottom of the cart frame 100, and a locking mechanism for locking the cart frame 100 in the unfolded state.

Specifically, the frame 100 in the deployed state includes: the push rod type motorcycle frame comprises a bottom bracket 1, a push rod frame 2, a push handle frame 3 and two groups of rear wheel brackets 4, wherein the bottom bracket 1 extends along the front-back direction, and a front wheel assembly 200 is arranged at the front part of the bottom bracket 1; the push rod frame 2 extends along the up-down direction, the lower part of the push rod frame 2 is rotatably connected with the rear part of the bottom bracket 1 through a rotating shaft a, and the push handle frame 3 is connected with the upper part of the push rod frame 2 and can be arranged relative to the push rod frame 2 in a folding mode.

Referring to fig. 2, two sets of rear wheel brackets 4 are respectively arranged at the left and right sides of the bottom bracket 1, the rear brackets 4 are rotatably connected to the bottom bracket 1, each set of rear wheel brackets 4 comprises two rear wheel struts which are arranged in tandem and parallel to each other, wherein a first rear wheel strut 41 is arranged at the front side, a second rear wheel strut 42 is arranged at the rear side, the inner end of the first rear wheel strut 41 is rotatably connected to the bottom bracket 1 through a first shaft b, and the inner end of the second rear wheel strut 42 is rotatably connected to the bottom bracket 1 through a second shaft c; the frame 100 further comprises a sliding member 5 which is slidably disposed on the bottom bracket 1 in the front-back direction and is driven to slide when the push rod frame 2 rotates, and a driving assembly 6 for driving the first rear wheel support rod 41 to rotate relative to the bottom bracket 1 when the sliding member 5 slides is disposed between the sliding member 5 and the first rear wheel support rods 41 on both sides.

The driving assembly 6 comprises a gear 61 fixedly arranged at the inner end part of the first rear wheel strut 41 and a rack 62 arranged on the sliding part 5, the rotation center line of the gear 61 and the rotation center line of the first rear wheel strut 41 relative to the bottom bracket 1 extend in a collinear way, in the embodiment, the gear 61 and the first rear wheel strut 41 are rotationally connected to the bottom bracket 1 through a first shaft b; the longitudinal extension direction of the rack 61 extends in the sliding direction of the slider 5, and the gear 61 and the rack 62 are provided in mesh with each other. Here, in the left and right drive units 6, two racks 62 are provided on the left and right sides of the sliding direction of the slider 5, respectively, and the racks 62 on both sides are fixed to the slider 5 or provided integrally with the slider 5. Specifically, in the present embodiment, the sliding member 5 includes a sliding block 51 disposed on the bottom bracket 1 in a sliding fit in the front-rear direction, and a connecting portion 52 fixed to the rear portion of the sliding block 51. The slide block 51 comprises a slide base 50 and a rack block 53 fixedly arranged on the slide base 50, the slide base 50 is connected to the bottom bracket 1 in a matching manner along the front-back direction, a group of racks 62 are respectively formed on the left side and the right side of the rack block 53, and the outer side edge of the rack 62 is positioned on the inner side of the outer side edge of the slide base 50. Thus, the rack 62 on both sides is engaged with the gear 61 on both sides by the guide of the slide base 50 and the bottom chassis 1 in the sliding engagement.

Referring to fig. 3 to 5, when the frame 100 is converted from the unfolded state to the folded state, the slider 51 gradually slides backward relative to the base bracket 1, the rack 62 drives the gear 61 to rotate backward about the first axis b, and the backward rotation of the gear 61 causes the first rear wheel strut 41 to rotate forward about the first axis b. Referring to fig. 1, the bottom bracket 1 further includes an upper cover 12, and the upper cover 12 accommodates the gear 61, the rack 62, the slider 51, and the like in the upper cover 12. The arrangement effectively prevents the parts from being damaged from the outside or causes potential safety hazards such as hand clamping and the like, and improves the appearance attractiveness and the service life of the golf cart.

More specifically, the slider 51 is provided with a guide groove 511 extending in the front-rear direction, and the bottom bracket 1 is provided with a guide pin d. The guide pin d is inserted into the guide slot 511 in a sliding fit manner, and the bottom bracket 1 is further provided with a limit slot 11 for providing sliding guide and limit of the slider 51 along the front-back direction. When the frame 100 is in the unfolding state, the guide pin d is abutted against the rear end part of the guide groove 511, the slide block 51 is relatively arranged in the limit groove 11 in a matching way, the vertical surfaces of the left side and the right side of the slide block 51 are relatively connected with the inner walls of the limit groove 11 at the left side and the right side in a sliding way, and the front end part of the slide block 51 is matched with the inner wall of the front side of the limit groove 11; when the frame 100 is converted from the unfolded state to the folded state, the guide pin d is disengaged from the rear end of the guide slot 511 and gradually slides forward along the length extension direction of the guide slot 511, the slider 51 gradually slides out from the limiting slot 11, and the front end of the slider 51 is disengaged from the front inner wall of the limiting slot 11.

The lower portion of the push rod frame 2 is provided with a driving portion 21 connected to the connecting portion 52 and driving the slider 5 to move backward when the push rod frame 2 rotates. The driving portion 21 has two connecting bases 211 respectively disposed at the left and right sides and extending forward. The interval between the two coupling seats 211 in the left-right direction is greater than the width of the connection part 52 in the left-right direction, and the connection part 52 is located between the two coupling seats 211. A connecting pin e for connecting the two connecting seats 211 is arranged between the two connecting seats 211, the axial lead of the connecting pin e is parallel to the axial lead of the rotating shaft a, and a connecting groove in sliding fit with the connecting pin e is formed in the connecting part 52. The coupling groove includes an arc-shaped groove portion 521, and a fitting groove portion 522 connected to the arc-shaped groove portion 521. The arc-shaped groove 521 is located at the lower part of the arc-shaped groove 521 and extends in the vertical direction along the engagement groove 522 with the axis of the rotating shaft a as the center line of the arc-shaped extending direction.

In the frame 100, the locking mechanism includes a locking member disposed between the push rod frame 2 and the bottom bracket 1 for locking the push rod frame 2 and the bottom bracket 1, wherein a locking tongue 212 is disposed on the driving portion 21 at the lower portion of the push rod frame 2, and a locking hole (not shown) for inserting the locking tongue 212 in a corresponding and matching manner is disposed on the bottom bracket 1. When the frame 100 is in the unfolded state, the matching of the bolt 212 and the lock hole on the bottom bracket 1 enables the push rod frame 2 and the bottom bracket 1 to be relatively locked, and the connecting pin e is matched with the upper end part of the arc-shaped groove part 521; when the frame 100 is converted from the unfolded state to the folded state, the latch 212 unlocks the push rod frame 2 and the bottom bracket 1, the push rod frame 2 and the bottom bracket 1 are relatively rotatably connected, the push rod frame 2 rotates forward around the rotating shaft a, the connecting pin e is separated from the upper end part of the arc-shaped groove part 521 and slides downward along the length extending direction of the arc-shaped groove part 521, and after the connecting pin e slides downward to be cooperatively connected with the engaging groove part 522, the push rod frame 2 continues to rotate downward, so that the driving part 21 drives the sliding part 5 to slide backward. The arrangement skillfully solves the problem that the folding stroke of the push rod frame 2 is larger than that of other components, when the connecting pin e is connected with the matching groove 522 in a matching way, the driving part 21 and the connecting part 52 form relatively fixed connection, and then the push rod frame 2 continues to rotate downwards, the sliding block 5 starts to slide backwards under the traction of the push rod frame 2, and the push rod frame 2 and other components can be synchronously folded.

Specifically, the push rod frame 2 further includes a push rod 22 fixedly disposed at an upper portion of the driving part 21 through a rotation shaft a and extending in an up-down direction when the frame 100 is in the unfolded state, and the lower push rod 22 is rotatably connected to the base bracket 1 about the rotation shaft a where it meets the driving part 21. When the frame 100 is in the deployed state, the push down lever 22 extends obliquely upward from the front to the rear; during the transition of the frame 100 from the unfolded state to the folded state, the lower push rod 22 is rotated forward about the rotation axis a, the forward rotation of the lower push rod 22 drives the driving part 21 to synchronously rotate downward about the rotation axis a, and after the connecting pin e is cooperatively connected with the engaging groove portion 522, the lower push rod 22 continues to rotate forward about the rotation axis a, so that the driving part 21 drives the sliding part 5 to slide backward relative to the base bracket 1.

Specifically, in the present embodiment, the frame 100 further includes a connecting front wheel assembly 200, the bottom bracket 1 includes a front bracket 7 therein, the front bracket 7 has two front stays 71 respectively disposed at the left and right sides and extending in the front-rear direction, and the front wheel assembly 200 is rotatably mounted between the front portions of the two sets of front stays 71.

Referring to fig. 6 to 17, the rear wheel assembly 300 includes a rear wheel frame 301, and a rear wheel body 302 rotatably mounted on the rear wheel frame 301 around a rear wheel shaft f, wherein when the frame 100 is in the folded state, the axes of the rear wheel shafts f on the left and right sides are parallel or collinear, specifically, in the present embodiment, the outer end of the first rear wheel strut 41 is rotatably connected to the rear wheel frame 301 on the same side, and the outer end of the second rear wheel strut 42 is rotatably connected to the rear wheel frame 301 on the same side. When the frame 100 is converted from the unfolded state to the folded state, the first rear wheel strut 41 and the second rear wheel strut 42 on both sides are folded towards the front side of the bottom bracket 1 synchronously rotating forwards, and the two sets of rear wheel bodies 302 are gradually folded at both sides of the bottom bracket 1.

The push rod frame 2 comprises an upper push rod 23 which is telescopically arranged in a rod cavity of the lower push rod 22 in a sliding way, and the push handle frame 3 comprises a push handle 32 which is rotatably connected with the upper end part of the upper push rod 23. When the frame 100 is in the unfolded state, the upper push rod 23 and the lower push rod 22 are relatively extended, and the push handle 32 obliquely extends upwards from front to back; when the frame 100 is converted from the unfolded state to the folded state, the upper push rod 23 slides downwards, so that the overall length of the upper push rod 23 and the lower push rod 22 is shortened, the push handle 32 rotates downwards around the rotating connection part of the push handle 32 and the upper push rod 23, and the push handle 32 and the lower push rod 22 are gradually folded; when the frame 100 is in the folded state, the upper push rod 23 is retracted in the rod cavity of the lower push rod 22, the push handle 32 is folded opposite to the lower push rod 22, and the push handle 32 is located above the lower push rod 22 in the up-down direction.

The folding process of the golf cart in this embodiment is described in detail below:

when it is desired to fold the frame 100, as shown in fig. 6 to 13, the locking mechanism is first unlocked, the push handle 32 is pressed downward so that the push handle 32 rotates downward around the rotational connection with the upper push rod 23, and the upper push rod 23 is also retracted relative to the lower push rod 22 under the action of the lower pressure; meanwhile, due to the unlocking of the latch bolt 212, the lower push rod 22 rotates forwards around the rotating shaft a under the action of the lower pressure, and after the connecting pin e is connected with the matching groove 522 in a matching way, the slider 51 slides backwards relative to the bottom bracket 1 by the continuous forward rotation of the push handle 22, the rear wheel bracket 4 rotates forwards by the backward sliding slider 51 through the driving assembly 6, and the rear wheel bracket 4 gradually approaches relative to the bottom bracket 1.

Referring to fig. 14 to 17, when the frame 100 is in the folded state, the rear wheel bodies 302 of the two sets of rear wheel assemblies 300 are respectively close to the left and right sides of the bottom bracket 1, the upper push rod 23 is retracted into the rod cavity of the lower push rod 22, and the push handle 32 and the lower push rod 22 are relatively folded, so that the frame 100 is folded in the height direction, the width direction and the length direction, the folding operation is simple, the folding volume is small, and the storage and the carrying are convenient.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (9)

1. A golf cart, comprising a cart frame having an unfolded state and a folded state, a front wheel assembly and a rear wheel assembly provided at the bottom of the cart frame, and a locking mechanism for locking the cart frame in the unfolded state, wherein the cart frame in the unfolded state comprises:

the push rod comprises a bottom bracket, a push rod frame, a push handle frame and two groups of rear wheel brackets, wherein the bottom bracket extends along the front-back direction, and the front wheel assembly is arranged at the front part of the bottom bracket; the push rod frame extends along the up-down direction, the lower part of the push rod frame is rotationally connected to the rear part of the bottom bracket through a rotating shaft, and the push handle frame is connected to the upper part of the push rod frame and can be folded relative to the push rod frame;

the two groups of rear wheel brackets are respectively arranged at the left side and the right side of the bottom bracket, each group of rear wheel brackets at least has a rear wheel supporting rod of which one end is provided with the rear wheel assembly, and the rear wheel supporting rods are rotationally connected to the bottom bracket; the frame still including can set up with sliding along the fore-and-aft direction on the bottom bracket and by drive gliding slider when the push rod frame rotates, slider and both sides all be equipped with between the rear wheel branch and be used for when the slider slides orders about rear wheel branch is relative bottom bracket pivoted drive assembly, wherein, drive assembly including set firmly in gear, setting on the rear wheel branch tip are in rack on the slider, the centre of rotation line of gear with rear wheel branch is relative bottom bracket pivoted center of rotation line collineation extends, the length extending direction of rack is followed the slip direction of slider extends, the gear with rack intermeshing sets up.

2. The golf cart of claim 1, wherein: the left side and the right side of the sliding direction of the sliding part are respectively provided with the racks, and the racks on the two sides are fixed on the sliding part or are integrally arranged with the sliding part.

3. The golf cart of claim 2, wherein: the sliding part comprises a sliding base and a rack block fixedly arranged on the sliding base, a group of racks is respectively formed on two side parts of the rack block, the outer side edge part of each rack is positioned on the inner side of the outer side edge part of the sliding base, and the sliding base is connected with the bottom support in a sliding fit manner.

4. The golf cart of claim 1, wherein: the slider is including can set up along fore-and-aft direction sliding fit the slider on the end support to and set firmly in connecting portion at slider rear portion, the lower part of push rod frame be equipped with connecting portion are connected and are in order to drive when the push rod frame rotates slider rearward movement's drive division.

5. The golf cart of claim 4, wherein: be provided with the connecting pin in the drive division, the axial lead of connecting pin with the axial lead of pivot is parallel to each other, seted up on the connecting portion with connecting pin sliding fit's spread groove, the spread groove include the arc slot portion, and with the cooperation slot portion that the arc slot portion meets, the arc slot portion with the axial lead of pivot is its arc extending direction's central line, the cooperation slot portion extends and is located along upper and lower direction the lower part of arc slot portion.

6. The golf cart of claim 4, wherein: one of the bottom bracket and the sliding block is provided with a guide groove extending along the front-back direction, the other one is provided with a guide pin, the guide pin is arranged in the guide groove in a penetrating way in a sliding fit manner, and the bottom bracket is also provided with a limiting groove for guiding and limiting the sliding block in the front-back direction in a sliding way.

7. The golf cart of any one of claims 1 to 6, wherein: the rear wheel assembly comprises a rear wheel frame and a rear wheel body which is rotatably arranged on the rear wheel frame around a rear wheel shaft, the outer end part of the rear wheel supporting rod is rotatably connected to the rear wheel frame, and when the frame is in a folded state, the axial lines of the rear wheel shafts on the left side and the right side are parallel or extend in a collinear way.

8. The golf cart of claim 7, wherein: the rear wheel support comprises two rear wheel supporting rods which are arranged in tandem and are parallel to each other, the inner end parts of the two rear wheel supporting rods are respectively and rotatably connected to the bottom support, and the outer end parts of the two rear wheel supporting rods are respectively and rotatably connected to the rear wheel frame.

9. The golf cart of claim 7, wherein: in the process of converting the frame from the unfolding state to the folding state, the rear wheel supports on the two sides are folded towards the bottom support in a forward rotating mode, and the two groups of rear wheel bodies are folded on the left side and the right side of the bottom support.

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