CN116176665A - Golf cart - Google Patents

Abstract

The invention discloses a golf cart, which comprises a cart frame and wheel assemblies, wherein the cart frame comprises an upper bracket, a bottom bracket and side brackets arranged on the left side and the right side, each side bracket comprises a vertical support and a bottom bracket assembly, the front part of the bottom bracket assembly is pivotally connected with the bottom bracket, the rear part of the bottom bracket assembly is pivotally connected with the lower part of the vertical support on the same side, the upper end parts of the vertical supports are pivotally connected with the upper bracket, the wheel assemblies are respectively arranged at the rear parts of the bottom bracket assemblies on the two sides, the cart frame also comprises a cross rod, one end part of the cross rod is pivotally connected with the wheel assemblies on one side, the other end part of the cross rod is detachably connected with the wheel assemblies on the other side, and when the golf cart is in a unfolded state, the golf cart can be folded when the connection between the other end part of the cross rod and the wheel assemblies on the other side is released. The golf cart has simple structure, good rigidity and stability during unfolding and small structural volume after folding.

Description

Golf cart

Technical Field

The invention relates to the technical field of carts, in particular to a golf cart.

Background

The golf sport is a global sport, the essence of the golf sport is not limited by age, and people can be fully in close contact with the nature, and the golf sport is integrated into the golf sport and fully enjoys the endless fun brought by the sport.

Golf carts are an indispensable tool in golf sports, and golf carts in the prior art have the following problems: when the golf cart is simple in structure, the golf cart is poor in stability in a unfolded state; when the structural stability of the golf cart is good, the golf cart is generally complex in structure and large in structural size, and even if the golf cart can be folded, the folded golf cart is large in size, so that the golf cart is inconvenient to carry and store.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide the golf cart which has the advantages of simple structure, good rigidity and stability in the unfolded state and small structural volume after being folded.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the utility model provides a golf cart, is in including having the frame of expansion state and folding state and setting the wheel subassembly of frame bottom, the wheel subassembly sets up respectively in the left and right sides, the frame includes the upper bracket that is located upper portion, is located the collet of bottom and sets up respectively in the side bracket of left and right sides, each side the side bracket all includes erects and chassis subassembly, each side the front portion of chassis subassembly all with the collet pivot connection, each side the rear portion of chassis subassembly all with the lower part pivot connection who corresponds one side erects the strut, each side the upper end of erectting prop all with upper bracket pivot connection, the wheel subassembly sets up respectively in the rear portion of chassis subassembly that corresponds one side, the frame still includes the cross arm, one end of cross arm and one side the wheel subassembly pivot connection, the other end of cross arm and the opposite side the wheel subassembly detachably connection, when the golf cart is in the expansion state, the other end of cross arm and the lower part pivot connection of erectting prop, each side the upper end all with the upper bracket pivot connection, the wheel subassembly can be drawn close to each other side the wheel, can be rotated when the opposite side the cross arm is connected with the opposite side the wheel subassembly the wheel.

Preferably, the golf cart further includes a first locking mechanism for locking the other end portion of the cross bar to the wheel assembly of the other side.

Further, the wheel assembly is provided with a connecting portion, the first locking mechanism comprises a first locking piece capable of being arranged along the length extending direction of the transverse strut and relative to the transverse strut in a sliding mode and a second locking piece capable of being arranged on the transverse strut in a rotating mode, the connecting portion is provided with a locking groove and a first clamping portion, the locking groove is matched with the first locking piece, the second locking piece is provided with a second clamping portion matched with the first clamping portion, when the first locking mechanism is in a locking state, the first locking piece is inserted into the locking groove, the first clamping portion is matched with the second clamping portion, when the first locking mechanism is in an unlocking state, the first locking piece is separated from the locking groove, and the first clamping portion is separated from the second clamping portion.

Still further, golf cart still includes the first unblock piece that is used for driving first locking mechanism unblock, first unblock piece can be followed the length extension direction of stull is slided and is set up on the stull, first unblock piece with first locking piece fixed connection, first locking piece can be slided and set up on the second locking piece, when first locking mechanism is in the locked state, first unblock piece with the cooperation is supported to the second locking piece, when first unblock piece with the second locking piece is disengaged, the second locking piece can rotate relative the stull.

Further, the first locking mechanism comprises a third locking piece which can slide along the length extending direction of the cross brace and can be rotatably arranged on the cross brace around the axis of the third locking piece, a connecting part is arranged on the wheel assembly, when the first locking mechanism is in a locking state, the third locking piece is in threaded connection with the connecting part, and when the first locking mechanism is in an unlocking state, the third locking piece is in threaded connection with the connecting part.

Still further, first locking mechanism still includes the fixed seat of fixed setting on the cross arm, the third locking piece with the fixed seat passes through threaded connection, first locking mechanism still includes the fixed setting on the cross arm be used for carrying out spacing locating part to the slip of third locking piece, when first locking mechanism is in the locked state, the third locking piece with the locating part offsets to establish the cooperation.

Preferably, the wheel assembly of each side includes a wheel seat and a wheel rotatably disposed on the wheel seat, the wheel seat of each side is pivotally connected to the rear portion of the chassis assembly of the corresponding side, and the golf cart further includes a second locking mechanism for locking the relative position between the wheel seat and the chassis assembly.

Further, the wheel base can be slidably disposed on the chassis assembly, the second locking mechanism includes a first locking tooth disposed on the chassis assembly and a second locking tooth disposed on the wheel base, when the second locking mechanism is in a locked state, the first locking tooth is engaged with the second locking tooth, and when the second locking mechanism is in an unlocked state, the first locking tooth is disengaged from the second locking tooth.

Still further, the golf cart further comprises a second unlocking member for driving the second locking mechanism to unlock, the second unlocking member is pivotally connected to the chassis assembly, a protruding portion is provided on the second unlocking member, when the second locking mechanism is in a locked state, the protruding portion is in abutting fit with the wheel base, so that the wheel base cannot slide relative to the chassis assembly, and when the protruding portion is disengaged from the wheel base, the wheel base can slide relative to the chassis assembly.

Further, when the golf cart is in the unfolded state, the wheels on the left and right sides are respectively positioned at the outer sides of the underframe components on the corresponding sides, and when the golf cart is in the folded state, the wheels on the left and right sides are respectively positioned at the inner sides of the underframe components on the corresponding sides.

Further, the chassis assembly includes a bottom rod extending in a front-rear direction and a joint extending rearward and upward obliquely from a rear end portion of the bottom rod, the wheel seat is sleeved outside the joint and rotatably provided around the joint, and a lower end portion of the vertical strut is pivotally connected to an upper portion of the joint.

Preferably, the frame further comprises a push rod, and a lower portion of the push rod is pivotally connected with the upper bracket.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the golf cart has a simple structure, when the golf cart is in a unfolded state, the two ends of the cross brace are respectively connected with the wheel assemblies at the two sides, and the cross brace cannot move relative to the wheel assemblies at the two sides, so that the golf cart has good rigidity and stability in the unfolded state. When the golf cart is folded, the connection between the cross brace and the wheel assembly on one side is disconnected, so that the side brackets on the left side and the right side can be closed, and the cross brace can be rotated to be closed with the underframe assembly, so that the golf cart has smaller structural volume after being folded and is convenient to carry and store.

Drawings

FIG. 1 is a perspective view of the golf cart according to embodiment 1 in a deployed state;

FIG. 2 is a second perspective view of the golf cart according to the embodiment 1 in a unfolded state;

FIG. 3 is a schematic side view of the golf cart of embodiment 1 in a deployed state;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is an enlarged schematic view of a portion of FIG. 4 at A;

FIG. 6 is an exploded view showing the first locking mechanism and the cross bar connection position of the golf cart according to embodiment 1;

FIG. 7 is a perspective view of the golf cart according to example 1 with the cross bar removed;

FIG. 8 is a perspective view of the golf cart according to embodiment 1 with the wheel assembly removed and the cross bar rotated at a certain angle relative to the wheel base (the second locking mechanism is in a locked state);

FIG. 9 is an enlarged schematic view of a portion of FIG. 8 at A;

FIG. 10 is a perspective view of the golf cart according to embodiment 1 with the wheel assembly removed and the cross bar rotated at a certain angle relative to the wheel base (the second locking mechanism is in an unlocked state);

FIG. 11 is an enlarged schematic view of a portion of FIG. 10 at A;

FIG. 12 is a perspective view of the golf cart according to embodiment 1 with the wheel assembly removed, the cross brace rotated to a folded position relative to the wheel base, and the wheel base rotated to a folded position relative to the chassis assembly;

FIG. 13 is a perspective view showing the golf cart according to embodiment 1 with the wheel assembly removed, the cross brace rotated to a folded position with respect to the wheel base, the wheel base rotated to a folded position with respect to the chassis assembly, and the second locking mechanism again in a locked position;

FIG. 14 is a schematic perspective view of the golf cart of example 1 during folding (the cross brace is rotated upward relative to the chassis assembly by a certain angle);

FIG. 15 is a schematic side view of the golf cart of example 1 during folding (the cross brace is rotated upward at an angle relative to the chassis assembly);

FIG. 16 is a schematic rear view of the golf cart of example 1 during folding (the cross brace is rotated upward at an angle relative to the chassis assembly);

FIG. 17 is a perspective view of the golf cart of embodiment 1 during folding (with the wheel assembly rotated to a folded position relative to the chassis assembly and the cross brace rotated to a folded position relative to the chassis assembly);

FIG. 18 is a schematic side view of the golf cart of embodiment 1 during folding (with the wheel assembly rotated to a folded position relative to the chassis assembly and the cross brace rotated to a folded position relative to the chassis assembly);

FIG. 19 is a schematic front view of the golf cart according to example 1 during folding (the wheel assembly being rotated to a folded position relative to the chassis assembly and the cross-brace being rotated to a folded position relative to the chassis assembly);

FIG. 20 is a schematic perspective view of the golf cart according to example 1 during folding (the left and right side brackets are relatively rotated and closed);

FIG. 21 is a schematic side view of the golf cart according to example 1 during folding (the left and right side brackets are relatively rotated to close together);

FIG. 22 is a schematic front view of the golf cart according to example 1 (the left and right side brackets are rotated relatively together) during folding;

fig. 23 is a perspective view of the golf cart of embodiment 1 in a folded state;

FIG. 24 is a schematic side view of the golf car of the embodiment 1 in a folded state;

fig. 25 is a perspective view of the golf cart of embodiment 2 in a deployed state (with the second locking mechanism and the second unlocking member removed);

FIG. 26 is a schematic side view of the golf car of the present embodiment 2 in a deployed state (with the second locking mechanism and the second unlocking member removed);

FIG. 27 is a schematic cross-sectional view taken along line A-A of FIG. 26;

FIG. 28 is a schematic cross-sectional view taken along line B-B of FIG. 26;

FIG. 29 is an enlarged schematic view of a portion of FIG. 28 at A;

FIG. 30 is an exploded view showing the first locking mechanism and the cross bar attachment position of the golf car of embodiment 2;

FIG. 31 is a perspective view of the golf cart according to embodiment 2 with the cross bar, the second locking mechanism and the second unlocking member removed;

fig. 32 is a schematic perspective view of the golf cart according to embodiment 2 during folding (the first locking mechanism is in an unlocked state);

FIG. 33 is a schematic rear view of the golf cart according to embodiment 2 (the first locking mechanism is in an unlocked state) during folding;

fig. 34 is a perspective view of the golf cart of embodiment 2 in a folded state;

fig. 35 is a schematic side view of the golf cart of embodiment 2 in a folded state.

Wherein: 11. an upper bracket; 12. a bottom support; 121. a base; 122. a bracket; 13. a chassis assembly; 131. a bottom bar; 132. a joint; 132a, first locking teeth; 14. vertical support; 15. a cross brace; 16. a push rod; 21. wheel seats; 211. a connection part; 212. a locking groove; 213. a first clamping part; 214. a second locking tooth; 215. a first external thread; 22. a wheel; 31. a first shaft; 32. a second shaft; 33. a third shaft; 34. a fourth shaft; 35. a fifth shaft; 41. a first locking member; 42. a second locking member; 421. a second clamping part; 43. a first elastic member; 5. a first unlocking member; 6. a second unlocking member; 61. a cam; 611. a convex portion; 71. a third locking member; 711. a first internal thread; 712. a second internal thread; 72. a fixing seat; 721. a second external thread; 73. and a limiting piece.

Detailed Description

The technical scheme of the invention is further described below with reference to the attached drawings and specific embodiments.

Example 1

As shown in fig. 1 to 24, the golf cart of the present invention has an unfolded state and a folded state, and includes a frame and a wheel assembly disposed at the bottom of the frame.

The wheel components are respectively arranged at the left side and the right side of the bottom of the frame. The wheel assembly on each side includes a wheel mount 21 and a wheel 22 pivotally connected to the wheel mount 21 by an axle.

The frame includes an upper bracket 11 provided at an upper portion, a shoe 12 provided at a front portion of the bottom, and a side bracket provided between the upper bracket 11 and the shoe 12.

The shoe 12 includes a base 121 and a bracket 122 having one end pivotally connected to the base 121.

The side brackets are respectively arranged at the left side and the right side, and each side bracket comprises a bottom frame component 13 and a vertical support 14. The front end of each side of the chassis assembly 13 is pivotally connected to a corresponding side of the shoe 12 by a first axle 31, the rear end of each side of the chassis assembly 13 is pivotally connected to the lower portion of the vertical support 14 by a second axle 32, and the upper portion of each side of the vertical support 14 is pivotally connected to a corresponding side of the upper bracket 11 by a third axle 33.

In this embodiment, the chassis assembly 13 includes a bottom bar 131 and a joint 132 integrally provided with the bottom bar 131. When the golf cart is in the unfolded state, the bottom bar 131 extends in the front-rear direction, the joint 132 extends obliquely rearward and upward from the rear end portion of the bottom bar 131, the vertical support 14 extends in the up-down direction, and the lower portion of the vertical support 14 is pivotally connected to the rear portion of the joint 132 via the second shaft 32.

The wheel seats 21 of the wheel assemblies are respectively provided on the joints 132 of the chassis assemblies 13 on the corresponding sides. The frame further includes a cross bar 15, one end portion of the cross bar 15 is pivotally connected to the wheel seat 21 of the wheel assembly on one side through a fourth shaft 34, and the other end portion of the cross bar 15 is detachably connected to the wheel seat 21 of the wheel assembly on the other side.

When the golf cart is in the unfolded state, the two ends of the cross brace 15 are respectively connected with the wheel assemblies on the corresponding sides, so that the cross brace 15 is fixedly arranged between the wheel assemblies on the left side and the right side, and the rigidity and the stability of the golf cart are better.

The golf cart can be folded when the connection between the other end portion of the cross bar 15 and the wheel base 21 of the wheel assembly of the other side is released.

The frame further comprises a push rod 16, the lower part of the push rod 16 being pivotally connected to the upper bracket 11. Putter 16 is pushed by the individual when the golf car is in use.

The golf cart further includes a first locking mechanism by which the other end portion of the cross bar 15 is coupled and locked with the wheel assembly of the other side when the golf cart is in the unfolded state.

Specifically, in this embodiment, as shown in fig. 4 to 6, the first locking mechanism includes a first locking member 41 and a second locking member 42, and the first locking member 41 is slidably disposed with respect to the cross bar 15 along the length extending direction of the cross bar 15. The second locking member 42 is rotatably provided on the cross bar 15. The wheel seat 21 is provided with a connecting part 211, and the connecting part 211 is provided with a locking groove 212, and the locking groove 212 is matched with the first locking piece 41. The connecting portion 211 is further provided with a first clamping portion 213, and the second locking member 42 is provided with a second clamping portion 421 matching the first clamping portion 213.

When the first locking mechanism is in the locked state, the first locking piece 41 is inserted into the locking groove 212 so that the cross bar 15 cannot rotate relative to the wheel seat 21. The first clamping portion 213 is matched with the second clamping portion 421, so that the frame cannot shake in the left-right direction.

When the first locking mechanism is in the unlocked state, the first locking piece 41 is disengaged from the locking groove 212, and the engagement between the first engaging portion 213 and the second engaging portion 421 is disengaged.

The first locking mechanism can be switched between the locked state and the unlocked state by sliding the first locking member 41 relative to the cross bar 15 and rotating the second locking member 42 relative to the cross bar 15.

In the present embodiment, the first locking member 41 is slidably provided on the second locking member 42. The first locking mechanism further includes a first elastic member 43, and an elastic force of the first elastic member 43 is used to drive the first locking member 41 to slide in a direction in which the first locking member 41 is engaged with the locking groove 212. One end of the first elastic member 43 is provided on the first locking member 41, and the other end of the first elastic member 43 is provided on the second locking member 42.

In this embodiment, the golf cart further includes a first unlocking member 5, and the first locking mechanism is unlocked by operating the first unlocking member 5 in the locked state. The first unlocking piece 5 is provided on the cross bar 15 so as to be slidable along the longitudinal extension direction of the cross bar 15. The first unlocking piece 5 is fixedly connected with the first locking piece 41, and when the first locking mechanism is in a locking state, the first unlocking piece 5 is in abutting fit with the second locking piece 42, so that the second locking piece 42 cannot rotate relative to the transverse strut 15.

When the first locking mechanism operates the first unlocking member 5 in the locked state to slide relative to the cross bar 15, the first locking member 41 is driven to slide along the same direction, so that the first locking member 41 gradually disengages from the locking groove 212. When the first unlocking member 5 slides relative to the cross brace 15, the first unlocking member 5 is separated from the second locking member 42, so that the acting force applied by the first unlocking member 5 to the second locking member 42 disappears, the second locking member 42 can rotate relative to the cross brace 15 around its axis, the engagement between the first clamping portion 213 and the second clamping portion 421 can be released, and the first locking mechanism is unlocked.

When the golf cart is in the unfolded state, the wheel assemblies are located outside the chassis assemblies 13 on the corresponding sides, respectively. The wheel mount 21 is preferably pivotally connected to the joint 132 of the chassis assembly 13 by the fifth shaft 35 so that when the golf cart is folded, the wheel assembly can rotate relative to the chassis assembly 13 to be folded inside the chassis assembly 13 on the corresponding side, thereby making the golf cart less bulky after folding. In this embodiment, the wheel seat 21 is sleeved outside the joint 132 and is rotatably disposed around the joint 132.

The golf car further includes a second locking mechanism by which the position between the wheel seat 21 and the chassis assembly 13 is locked when the golf car is in the deployed state.

The second locking mechanism includes a first locking tooth 132a provided on the joint 132 and a second locking tooth 214 provided on the wheel mount 21. When the second locking mechanism is in the locked state, the first locking tooth 132a and the second locking tooth 214 cooperate such that the wheel mount 21 cannot rotate relative to the joint 132, as shown in fig. 8, 9 and 13. When the second locking mechanism is in the unlocked state, the first locking teeth 132a are disengaged from the second locking teeth 214, and the wheel seat 21 can rotate relative to the joint 132, as shown in fig. 10 to 12.

The wheel mount 21 can also be slidably disposed relative to the joint 132 to shift the second locking mechanism between the locked and unlocked states.

The golf cart further includes a second unlocking member 6 that is unlocked when the second locking mechanism operates the second unlocking member 6 in a locked state, thereby rotating the wheel assembly relative to the chassis assembly 13. As shown in fig. 8 to 13, the second unlocking member 6 is pivotally connected to the joint 132 of the chassis assembly 13, and a protrusion 611 is disposed on the second unlocking member 6. When the second locking mechanism is in the locked state, the convex portion 611 is in abutting engagement with the wheel seat 21, so that the wheel seat 21 cannot slide relative to the joint 132, thereby causing the second locking mechanism to remain in the locked state, as shown in fig. 8, 9 and 13. When the second unlocking member 6 is rotated, the convex portion 611 is disengaged from the wheel seat 21, as shown in fig. 10 to 12, and at this time, the wheel seat 21 slides relative to the joint 132 under the elastic force of the second elastic member (not shown), so that the first locking tooth 132a is disengaged from the second locking tooth 214, and the second locking mechanism is unlocked.

In this embodiment, as shown in fig. 8 to 13, the second unlocking member 6 is provided with a cam 61, and the cam 61 is pivotally connected to the joint 132. When the second locking mechanism is in the locked state, the convex portion 611 of the cam 61 is fitted against the wheel seat 21.

When the golf cart is in the unfolded state, the first shaft 31 extends obliquely upward from front to rear, the second shaft 32 extends horizontally in the left-right direction, the third shaft 33 extends obliquely upward from front to rear, the fourth shaft 34 extends obliquely upward from front to rear, the fifth shaft 35 extends obliquely upward from front to rear, the first locking mechanism and the second locking mechanism are both in the locked state such that the cross brace 15 is supported between the wheel assemblies on the left and right sides, the wheel assemblies on each side are located outside the chassis assembly 13 on the corresponding side, and the bracket 122 is located in front of the shoe 121, as shown in fig. 1 to 4.

When the golf cart is folded from the unfolded state, the first unlocking piece 5 slides relative to the cross bar 15 to separate from the second locking piece 42, the second locking piece 42 can rotate relative to the cross bar 15 around the axis of the second locking piece, the first clamping part 213 and the second clamping part 421 are matched and separated, the first locking piece 41 is separated from the locking groove 212 when the first unlocking piece 5 slides, and the first locking mechanism is unlocked. After the first locking mechanism is unlocked, the cross brace 15 can rotate a certain angle relative to the wheel seat 21, as shown in fig. 14-16.

The second unlocking member 6 is operated to rotate relative to the joint 132 in the first direction, so that the cooperation between the convex portion 611 and the wheel seat 21 is released, the wheel seat 21 slides relative to the joint 132 under the action of the elastic force of the second elastic member, the first locking tooth 132a is released from the second locking tooth 214, and the second locking mechanism is unlocked. The wheel assembly is rotated backwards around the fifth shaft 35 and inwards of the underframe assembly 13, and when the wheel assembly moves inwards of the underframe assembly 13, the cross rod 15 moves outwards of the underframe assembly 13; until the wheel assembly rotates to the inside of the underframe assembly 13, the cross bar 15 rotates around the third shaft 33 to be close to the underframe assembly 13, as shown in fig. 17-19. The left and right side brackets are respectively rotated toward each other about the first axis 31, as shown in fig. 20 to 22. The push rod 16 is rotated downwards to be close to the vertical support 14, the vertical support 14 and the push rod 16 are rotated forwards around the second shaft 32 integrally to be close to the underframe component 13, the bracket 122 is rotated backwards relative to the base 121 until the underframe component 13, the vertical support 14, the transverse support 15 and the push rod 16 are close to each other, the wheel components on the left side and the right side are all folded on the inner side of the underframe component 13, the wheel components on the left side and the right side are close to each other, the bracket 122 is folded between the underframe components 13 on the left side and the right side, and finally the folding is as shown in fig. 23 and 24. When the golf cart is in a folded state, the golf cart is flat, has compact structure and small volume, and is convenient to carry and store.

When the wheel assembly rotates to the inner side of the chassis assembly 13, the second unlocking member 6 rotates in the opposite direction to the first direction relative to the joint 132, the protruding portion 611 of the second unlocking member 6 can be abutted against the wheel seat 21 again, the wheel seat 21 slides relative to the joint 132 to enable the second locking tooth 214 to be matched with the first locking tooth 132a, even if the second locking mechanism is in the locked state again, so that the wheel assembly is locked at the inner side position of the chassis assembly 13, as shown in fig. 13.

Example 2

In this embodiment, the structure of the first lock mechanism is different from that of embodiment 1. Specifically, as shown in fig. 25 to 35, the first locking mechanism includes a third locking piece 71, and the third locking piece 71 is provided on the cross bar 15 so as to be slidable in the longitudinal extending direction of the cross bar 15 and rotatable about its own axis. When the first locking mechanism is in the locked state, the third locking piece 71 is screwed with the connecting portion 211, as shown in fig. 29 and 30. When the first locking mechanism is in the unlocked state, the third locking piece 71 is disengaged from the connecting portion 211, as shown in fig. 32 and 33. The first locking mechanism is switched between the locked state and the unlocked state by rotating the third locking member 71 about its axis in different directions.

In this embodiment, as shown in fig. 28 and 29, the third locking member 71 is a threaded sleeve having a first female screw 711, the threaded sleeve is provided outside the cross bar 15, and the connecting portion 211 has a first male screw 215. When the first locking mechanism is in the locked state, the first internal thread 711 is connected to the first external thread 215. When the first locking mechanism is in the unlocked state, the first internal thread 711 is disconnected from the first external thread 215. In contrast, an external thread may be provided on the threaded sleeve, and an internal thread may be provided on the connecting portion 211.

The first locking mechanism further includes a fixing base 72 fixedly provided on the cross bar 15, and the third locking member 71 is screwed with the fixing base 72 so that when the third locking member 71 rotates along its own axis, it simultaneously slides along the length extending direction of the cross bar 15.

In this embodiment, as shown in fig. 28 to 30, the third locking member 71 further has a second internal thread 712, and the fixing base 72 has a second external thread 721, and the second internal thread 712 is connected to the second external thread 721. In contrast, the third locking member 71 may be provided with an external thread, and the fixing base 72 may be provided with an internal thread.

The first locking mechanism further includes a stopper 73 fixedly provided on the cross bar 15, the stopper 73 being for restricting the sliding of the third locking member 71. When the first locking mechanism is in the locked state, the third locking piece 71 is in abutting fit with the limiting piece 73.

In this embodiment, the first locking mechanism is unlocked without providing an unlocking member alone, and when the first locking mechanism is unlocked in the locked state, the third locking member 71 is rotated about its own axis to be disconnected from the threaded connection with the connecting portion 211.

In this embodiment, when the golf cart is folded from the unfolded state, the operation mode for unlocking the first locking mechanism is different from that of embodiment 1, specifically, the third locking member 71 is rotated around its own axis line to be disconnected from the screw connection with the connection portion 211, and the first locking mechanism is unlocked as shown in fig. 32 and 33. The rest of the folding process is the same as that of embodiment 1, and the folded state of the golf cart is also the same as that of embodiment 1, as shown in fig. 34 and 35.

The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims (12)

1. The utility model provides a golf cart, includes the frame that has expansion state and folding state and sets up the wheel subassembly of frame bottom, the wheel subassembly sets up in left and right sides, its characterized in that respectively: the frame includes the collet that is located upper portion, is located the bottom and sets up respectively in the side support of left and right sides, each side the side support all includes erects and struts and chassis subassembly, the front portion of each side the chassis subassembly all with collet pivot connection, the rear portion of each side the chassis subassembly all with correspond one side erect the lower part pivot connection of propping, the upper end of each side erect prop all with upper bracket pivot connection, the wheel subassembly sets up respectively in the rear portion of the chassis subassembly that corresponds one side, the frame still includes the cross beam, one end of cross beam with one side the wheel subassembly pivot connection, another end of cross beam with the opposite side the wheel subassembly detachably connects, when the golf cart is in the state of expanding, another end of cross beam with the opposite side the wheel subassembly is connected, makes the cross beam is fixed between the wheel subassembly of both sides, when another end of cross beam with the connection between the wheel subassembly of opposite side the wheel subassembly can draw close up the side the wheel subassembly can rotate relatively the support.

2. A golf cart according to claim 1, wherein: the golf cart further includes a first locking mechanism for locking the other end portion of the cross bar to the wheel assembly of the other side.

3. A golf cart according to claim 2, wherein: the wheel assembly is provided with a connecting part, the first locking mechanism comprises a first locking piece and a second locking piece, the first locking piece can be arranged along the length extending direction of the transverse strut and is arranged relative to the transverse strut in a sliding mode, the second locking piece can be arranged on the transverse strut in a rotating mode, the connecting part is provided with a locking groove and a first clamping part, the locking groove is matched with the first locking piece, the second locking piece is provided with a second clamping part matched with the first clamping part, when the first locking mechanism is in a locking state, the first locking piece is inserted into the locking groove, the first clamping part is matched with the second clamping part, when the first locking mechanism is in an unlocking state, the first locking piece is separated from the locking groove, and the first clamping part is separated from the second clamping part.

4. A golf cart according to claim 3, wherein: the golf cart further comprises a first unlocking piece for driving the first locking mechanism to unlock, the first unlocking piece can be arranged on the transverse brace in a sliding manner along the length extending direction of the transverse brace, the first unlocking piece is fixedly connected with the first locking piece, the first locking piece can be arranged on the second locking piece in a sliding manner, when the first locking mechanism is in a locking state, the first unlocking piece is in propping fit with the second locking piece, and when the first unlocking piece is in uncoupling fit with the second locking piece, the second locking piece can rotate relative to the transverse brace.

5. A golf cart according to claim 2, wherein: the first locking mechanism comprises a third locking piece which can slide along the length extending direction of the cross brace and can be rotatably arranged on the cross brace around the axis of the third locking piece, a connecting part is arranged on the wheel assembly, when the first locking mechanism is in a locking state, the third locking piece is in threaded connection with the connecting part, and when the first locking mechanism is in an unlocking state, the third locking piece is in threaded connection with the connecting part.

6. A golf cart according to claim 5, wherein: the first locking mechanism further comprises a fixing seat fixedly arranged on the cross brace rod, the third locking piece is in threaded connection with the fixing seat, the first locking mechanism further comprises a limiting piece fixedly arranged on the cross brace rod and used for limiting sliding of the third locking piece, and when the first locking mechanism is in a locking state, the third locking piece is in propping fit with the limiting piece.

7. A golf cart according to claim 1, wherein: the golf cart further comprises a second locking mechanism for locking the relative position between the wheel seat and the underframe assembly.

8. A golf cart according to claim 7, wherein: the wheel seat can be arranged on the underframe assembly in a sliding manner, the second locking mechanism comprises a first locking tooth arranged on the underframe assembly and a second locking tooth arranged on the wheel seat, when the second locking mechanism is in a locking state, the first locking tooth is matched with the second locking tooth, and when the second locking mechanism is in an unlocking state, the first locking tooth is disengaged from the second locking tooth.

9. A golf cart according to claim 8, wherein: the golf cart further comprises a second unlocking piece used for driving the second locking mechanism to unlock, the second unlocking piece is pivotally connected to the underframe assembly, a convex part is arranged on the second unlocking piece, when the second locking mechanism is in a locking state, the convex part and the wheel base are in propping fit to enable the wheel base to be incapable of sliding relative to the underframe assembly, and when the convex part and the wheel base are in disengagement in fit, the wheel base can slide relative to the underframe assembly.

10. A golf cart according to claim 7, wherein: when the golf cart is in the unfolded state, the wheels on the left side and the right side are respectively positioned on the outer sides of the underframe components on the corresponding sides, and when the golf cart is in the folded state, the wheels on the left side and the right side are respectively positioned on the inner sides of the underframe components on the corresponding sides.

11. A golf cart according to claim 7, wherein: the chassis assembly comprises a bottom rod extending along the front-back direction and a joint extending backwards and upwards obliquely from the rear end part of the bottom rod, the wheel seat is sleeved outside the joint and can be rotatably arranged around the joint, and the lower end part of the vertical support is pivotally connected with the upper part of the joint.

12. A golf cart according to claim 1, wherein: the frame also comprises a push rod, and the lower part of the push rod is pivotally connected with the upper bracket.

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