Folding golf trolley

Abstract

The invention provides a folding golf trolley, and relates to the technical field of golf equipment. The folding golf cart includes: a base; the rotating shaft is rotationally connected to the base; the push rod is in transmission connection with the rotating shaft and drives the rotating shaft to rotate; the rear wheel assemblies are movably connected to the two ends of the rotating shaft; the rear wheel assembly comprises a rear axle and a rear wheel, one end of the rear axle is sleeved with the rotating shaft, the rear wheel is connected to the other end of the rear axle, and the rear axle rotates along with the rotating shaft and stretches out and draws back in the axial direction of the rotating shaft. According to the folding type golf trolley, the problems that a golf trolley is complex to fold and large in folding size can be solved, and interference is avoided when the golf trolley is folded.

Description

[0001] This application is a divisional application. The application number of the original application is 202510031730.6, the filing date of the original application is January 9, 2025, and the invention title of the original application is "A Folding Golf Caddy". The entire content of the original application is incorporated herein by reference. Technical Field

[0002] This application relates to the technical field of golf equipment, and particularly to a folding golf caddy. Background Art

[0003] A golf caddy, that is, a golf bag carrier, is mainly used to place and carry a golf bag to relieve the pressure on the shoulders of golf players when playing and walking to the next hole.

[0004] Currently, folding golf caddies have been widely used because they can reduce the storage volume due to their folding function. However, the existing folding golf caddies have a complex folding method and a large folding volume. Summary of the Invention

[0005] This application provides a folding golf caddy to solve the problems of complex folding and large folding volume of the golf caddy, and to avoid interference during the folding of the golf caddy.

[0006] This application provides a folding golf caddy, including: a base; a rotating shaft rotatably connected to the base; a push rod, the push rod being drivingly connected to the rotating shaft, and the push rod driving the rotating shaft to rotate; a rear wheel assembly movably connected to both ends of the rotating shaft; the rear wheel assembly includes a rear wheel shaft and rear wheels, one end of the rear wheel shaft is sleeved with the rotating shaft, the rear wheels are connected to the other end of the rear wheel shaft, and the rear wheel shaft axially expands and contracts along the rotating shaft as the rotating shaft rotates.

[0007] The folding golf caddy provided by this application includes a base, a rotating shaft, a push rod and a rear wheel assembly. The rotating shaft is rotatably connected to the base, the push rod is drivingly connected to the rotating shaft, and the rear wheel assembly is movably connected to both ends of the rotating shaft. In the rear wheel assembly, one end of the rear wheel shaft is sleeved with the rotating shaft and the rear wheels are connected to the other end of the rear wheel shaft. With such a setting, the push rod can rotate relative to the base to achieve the folding of the push rod. At the same time, the push rod can drive the rotating shaft to rotate. As the rotating shaft rotates, the rear wheel shaft axially expands and contracts along the rotating shaft, driving the rear wheels to move towards or away from the rotating shaft, thereby accommodating the rear wheels.

[0008] By rotating the push rod to drive the rotation of the rotating shaft, and then driving the rear wheel assembly to move axially along the rotating shaft, the storage and extension of the rear wheel assembly are realized. In this way, the transmission mode of the folding golf cart is simple and the folding is convenient. Moreover, the movement trajectory coverage area of the rear wheel assembly is small, the folding and unfolding are flexible, and there is no interference with other components. It can ensure the smooth folding of the folding golf cart and will not affect the layout of other components of the whole vehicle.

[0009] In a possible implementation manner, one of the rotating shaft and the rear wheel shaft is provided with a sliding member, and the other is provided with a spiral groove, and the spiral groove spirally extends along the rear wheel shaft or the rotating shaft; when the rotating shaft rotates, the sliding member slides along the spiral groove, so that the rear wheel shaft moves axially along the rotating shaft.

[0010] In this way, the sliding member extends into the spiral groove, and during the rotation of the rotating shaft, the sliding member slides along the spiral groove. The position of the sliding member on the rotating shaft remains fixed, and the spiral sliding of the sliding member along the spiral groove can be converted into the axial movement of the rear wheel shaft along the rotating shaft to realize the storage and extension of the rear wheel assembly.

[0011] In a possible implementation manner, a plurality of spiral grooves are arranged at intervals along the circumferential direction of the rear wheel shaft or the rotating shaft.

[0012] In this way, during the process of the rotating shaft driving the rear wheel shaft to move, each sliding member slides along each spiral groove, and the rotating shaft and the rear wheel shaft generate acting forces at different positions in the circumferential direction, and the force between the two is more uniform, which can make the relative movement between the two more stable and reliable. Moreover, the movement trajectory of the rear wheel shaft is more accurate, and the reliability of the whole golf cart is higher and the service life is longer.

[0013] In a possible implementation manner, the rear wheel shaft is disposed through the rotating shaft, and the sliding member is disposed on the rotating shaft, and the spiral groove is disposed on the outer wall of the rear wheel shaft.

[0014] In this way, the sliding member can adopt a separable connection mode with the rotating shaft, and the sliding member can be connected to the rotating shaft from the outer wall of the rotating shaft. After the rear wheel shaft extends into the rotating shaft, the position of the spiral groove can be adjusted by rotating the rear wheel shaft, so that the sliding member can be correspondingly inserted into the spiral groove. In this way, it is more convenient for the assembly of the rear wheel shaft and the rotating shaft, the assembly difficulty of the two can be reduced, and the assembly efficiency of the two can be improved.

[0015] In a possible implementation manner, the rear wheel shaft is provided with a first anti-rotation portion, the base is provided with a limiting hole, and the limiting hole is provided with a second anti-rotation portion; the second anti-rotation portion is correspondingly arranged and matched with the first anti-rotation portion to prevent the rotation of the rear wheel shaft.

[0016] In this way, during the movement of the rear wheel axle relative to the base, through the mutual cooperation of the first anti-rotation part on the rear wheel axle and the second anti-rotation part on the base, the rotational movement of the rear wheel axle along the circumferential direction is hindered, and the rear wheel axle is forced to axially expand and contract relative to the base, so as to realize the deployment and folding of the rear wheel assembly.

[0017] In a possible implementation manner, the first cross-section within at least a partial axial length range of the rear wheel axle is non-circular to form the first anti-rotation part; the second cross-section within at least a partial axial length range of the limiting hole is non-circular to form the second anti-rotation part; the first cross-section and the second cross-section match each other.

[0018] In a possible implementation manner, the limiting hole is formed by the base itself, or a limiting member is connected to the base, and the limiting member is provided with a limiting hole.

[0019] In this way, the limiting hole can be directly formed by opening a hole on the side wall of the base. Or a limiting member can be detachably connected to the base, and a limiting hole is formed by opening a hole on the limiting member.

[0020] In a possible implementation manner, the first anti-rotation part is a limiting strip protruding from the outer wall of the rear wheel axle, and the second anti-rotation part is a limiting groove provided on the hole wall of the limiting hole; wherein, the limiting strip extends into the limiting groove, and the limiting strip extends along the axial direction of the rear wheel axle.

[0021] In this way, the limiting strip on the rear wheel axle moves along the limiting groove of the limiting member, limiting the rear wheel axle to move along its own axial direction to ensure the accuracy of the movement track of the rear wheel axle. And through the mutual cooperation of the limiting strip and the limiting groove, the rear wheel axle can be positioned during installation to ensure the position accuracy of the rear wheel axle.

[0022] In a possible implementation manner, the rear wheel axle includes a main shaft and a moving sleeve, the rear wheel is connected to the main shaft, and the moving sleeve is sleeved outside the main shaft; wherein, the moving sleeve moves along the inner wall of the rotating shaft, and the moving sleeve drives the main shaft to move along the axial direction of the rotating shaft.

[0023] In this way, the moving sleeve and the main shaft can be processed separately, which is convenient for processing a spiral groove on the outer wall of the moving sleeve, simplifying the processing technology of the rear wheel axle. And the moving range of the rear wheel axle can be limited by the moving sleeve to prevent the rear wheel axle from coming out of the rotating shaft.

[0024] In a possible implementation manner, one end of the moving sleeve facing the rear wheel abuts against the outer periphery of the limiting hole, the main shaft passes through the limiting hole and extends outside the base, and the first anti-rotation part is a limiting strip protruding from the outer wall of the main shaft.

[0025] In this way, the main shaft can move through the limiting hole, and the protruding limiting strip is formed on the outer wall of the main shaft as the first anti-rotation part, so that the rear wheel shaft can be guided to move through the cooperation between the main shaft and the limiting hole. The movable sleeve can be limited in displacement by the limiting hole, and when the movable sleeve moves to the point where its end facing the rear wheel stops at the outer periphery of the limiting hole, the rear wheel assembly is in the deployed position.

[0026] In a possible implementation, a positioning groove is formed on the inner wall of the movable sleeve, and the positioning groove extends from one end of the movable sleeve facing the rear wheel to the other end of the movable sleeve, and the limiting strip on the outer wall of the main shaft extends into the positioning groove.

[0027] In this way, when the movable sleeve is sleeved on the outer wall of the main shaft, the movable sleeve and the main shaft can be positioned, so that the rear wheel shaft can be accurately positioned in the rotating shaft, ensuring that the sliding member on the rotating shaft can extend into the spiral groove on the rear wheel shaft.

[0028] In a possible implementation manner, the positioning groove does not pass through both axial ends of the movable sleeve.

[0029] In this way, the groove area on the inner wall of the movable sleeve is smaller, and the positioning groove has less influence on the structural strength of the movable sleeve, thereby ensuring the structural strength and reliability of the movable sleeve.

[0030] In a possible implementation manner, a fastener is inserted into the positioning groove, and the fastener fixes the movable sleeve to the main shaft.

[0031] In this way, the moving sleeve can be locked on the main shaft by the fastener. In addition, the part of the fastener on the outer wall of the moving sleeve can be completely accommodated in the positioning groove to prevent the fastener from affecting the movement of the moving sleeve in the rotating shaft.

[0032] In a possible implementation, the main shaft includes a core shaft and a guide sleeve, the rear wheel is connected to the core shaft, and the guide sleeve is sleeved on the core shaft.

[0033] In this way, the processing technology of the main shaft is simpler, and the mandrel and the guide sleeve can be processed separately, and then the guide sleeve is fixedly connected to the outside of the mandrel. In addition, by separately arranging the mandrel and the guide sleeve, the assembly method of the rear wheel assembly is also more flexible.

[0034] In a possible implementation manner, when the spiral groove is provided on the movable sleeve, the spiral groove extends to both axial ends of the movable sleeve.

[0035] In this way, the spiral groove has a sufficient extension length, and the sliding member on the rotating shaft slides between the two ends of the spiral groove, so that the rear wheel shaft has a sufficiently long moving distance. Therefore, when the push rod is in the folded state, the rear wheel shaft can be retracted into the rotating shaft as much as possible, thereby minimizing the storage volume of the golf cart.

[0036] In a possible implementation, the foldable golf trolley further includes: a front wheel assembly, including a connecting rod and a front wheel, wherein one end of the connecting rod is connected to the rotating shaft, and the front wheel is connected to the other end of the connecting rod; wherein the connecting rod moves as the rotating shaft rotates to drive the front wheel to move toward or away from the rotating shaft.

[0037] In this way, the push rod rotates to drive the rotating shaft to rotate, and then the rotating shaft rotates the connecting rod to make a rotary motion, and the connecting rod drives the front wheel to move along the front and rear direction of the base, so as to realize the storage and extension of the front wheel assembly. When the golf trolley is in a folded state, not only the push rod is folded on the base, but also the front wheel assembly is retracted inward. The front and rear dimensions of the golf trolley are reduced, and the folded volume of the whole vehicle is reduced, which makes it easier to store and carry the golf trolley.

[0038] In a possible embodiment, the connecting rod includes a first rod and a second rod, one end of the first rod is rotatably connected to the rotating shaft, the other end of the first rod is rotatably connected to one end of the second rod, and the other end of the second rod is connected to the front wheel; the base is provided with a guide seat, and the second rod passes through the guide seat so that the second rod moves in a straight line along the axial direction of the second rod.

[0039] In this way, when the rotating shaft drives the first rod to rotate, the first rod can also rotate relative to the rotating shaft, and the second rod and the first rod can also rotate relatively, so that the rotating shaft drives the connecting rod to extend and retract. Furthermore, the connecting rod drives the front wheel to move forward and backward, so that the front wheel assembly can be stored and extended.

[0040] Furthermore, the second rod is limited to extend in the horizontal direction by the guide seat, so that the second rod moves in a straight line along its own axis, and the traction force of the second rod on the front wheel is kept in the horizontal direction, ensuring that the front wheel assembly can be smoothly extended and retracted, and avoiding interference between the front wheel assembly and the ground or the base.

[0041] In a possible implementation manner, the foldable golf trolley further includes: a gear set, which is transmission-connected between the bottom end of the push rod and the rotating shaft.

[0042] In this way, the rotational energy is transmitted through the meshing gears in the gear set. The push rod transmits its rotational energy to the gear set, and the gear set then transmits the rotational energy to the rotating shaft to drive the rotating shaft to rotate.

[0043] In one possible embodiment, the gear set includes at least one pair of gear pairs, and the gear pairs include: a driving wheel connected to the bottom end of the push rod; a driven wheel sleeved on the outer wall of the rotating shaft and meshing with the driving wheel; wherein, when the push rod swings toward a direction close to the base, the driven wheel drives the rotating shaft to rotate in a first direction.

[0044] In this way, when the push rod rotates relative to the base, the push rod drives the driving wheel to rotate synchronously. The driving wheel drives the driven wheel meshing with it to rotate relatively, and the driven wheel then drives the rotating shaft to rotate synchronously. Among them, the rotation direction of the driven wheel is opposite to that of the driving wheel, and the rotation direction of the rotating shaft is opposite to that of the push rod.

[0045] In a possible implementation manner, the gear set includes two pairs of gear pairs. The two driving wheels of the two pairs of gear pairs are respectively located on both sides of the push rod; a connecting shaft is connected between the two driving wheels, and the connecting shaft is connected to the push rod.

[0046] In this way, there are two transmission connection parts arranged at intervals between the push rod and the rotating shaft. The force transmission between the push rod and the rotating shaft is more balanced, and the movement cooperation between the push rod and the rotating shaft is smoother and more reliable. At the same time, the two pairs of gear pairs avoid the planar space occupied by the push rod itself. The driving wheels do not separately occupy the thickness space, and the overall thickness space occupied by the push rod and the driving wheels is smaller, which can reduce the volume of the whole vehicle after folding and facilitate the storage of the golf cart.

[0047] Moreover, the two driving wheels are connected by a connecting shaft connected to the push rod. The connecting shaft defines the synchronous rotation of the two driving wheels, and the transmission between the push rod and the rotating shaft is more accurate. And, the connecting shaft serves as the rotating shaft of the push rod, and the push rod rotates around the connecting shaft to realize the unfolding and folding of the push rod relative to the base.

[0048] In a possible implementation manner, the base is provided with a support member, and both the rotating shaft and the connecting shaft are passed through the support member.

[0049] In this way, the connecting shaft is arranged on the support member, and the support member positions the rotation point of the push rod on the base. At the same time, the support member also supports the rotating shaft, making the installation of the rotating shaft on the base more stable and reliable. At this time, the center distance between the connecting hole and the mounting hole on the support member can be designed according to the center distance between the driving wheel and the driven wheel.

[0050] In a possible implementation manner, the driven wheel is connected to the rotating shaft through a fastener; when the sliding member is arranged on the rotating shaft, the fastener is the sliding member, and the fastener passes through the rotating shaft and extends into the spiral groove of the rear wheel shaft.

[0051] In this way, there is no need to specially set up an additional sliding member, which simplifies the connection structure between the rotating shaft and the rear wheel shaft, can improve the overall vehicle assembly efficiency of the golf cart, and reduce the overall vehicle cost. Moreover, the fastener itself has good rigidity and is firmly connected to the rotating shaft, which can improve the transmission reliability between the rotating shaft and the rear wheel shaft.

[0052] In a possible implementation manner, the bottom end of the push rod is connected to the rotating shaft; when the push rod swings in the direction close to the base, the push rod drives the rotating shaft to rotate in the second direction, and the second direction is opposite to the first direction.

[0053] In this way, the push rod can directly drive the rotating shaft to rotate. At this time, the rotating direction of the rotating shaft is the same as that of the push rod. When the push rod and the rotating shaft are driven by a gear pair, when the push rod swings towards the base to the folded state, the rotating direction of the rotating shaft is the first direction. On the contrary, when the push rod is directly connected to the rotating shaft, when the push rod swings towards the base to the folded state, the rotating direction of the rotating shaft is the second direction opposite to the first direction.

[0054] In a possible implementation, the push rod can be telescopic along the length direction of the push rod, and has an extended state and a contracted state.

[0055] In this way, when the push rod is in the unfolded state farthest from the base, the push rod is in the extended state, the length of the push rod reaches the maximum, and the height of the push rod is suitable for the user to hold and push the golf cart. When the push rod is in the folded state closest to the base, the push rod is in the contracted state, the length of the push rod reaches the minimum, and the planar space occupied by the push rod itself is the smallest, which can minimize the folding volume of the golf cart.

[0056] In a possible implementation, the push rod includes: a lower rod, the bottom end of the lower rod is movably connected to the base; an upper rod, the bottom end of the upper rod penetrates into the lower rod from the top end of the lower rod, and the upper rod can be telescopic within the lower rod.

[0057] In this way, by moving the upper rod along the lower rod, the telescoping of the push rod is realized, and the push rod can be switched between the extended state and the contracted state.

[0058] In a possible implementation, the lower rod is provided with a telescopic switch, and the telescopic switch can lock the upper rod to make the push rod in the extended state, and the telescopic switch can release the upper rod to make the upper rod movable along the lower rod.

[0059] In this way, when the push rod is in the unfolded state away from the base, by making the telescopic switch in the locked state, the push rod can be locked in the extended state. At this time, the push rod maintains the maximum length, which is convenient for the user to hold. When the push rod is in the folded state close to the base, by making the telescopic switch in the open state, the push rod can be switched to the contracted state. At this time, the length of the push rod reaches the minimum to minimize the folding volume of the golf cart.

[0060] In a possible implementation, the base is provided with a rotation switch, and the rotation switch is cooperatively connected with the push rod; the rotation switch has a locked state and a triggered state; when the rotation switch is in the locked state, the push rod is locked to the base; when the push rod is in the contracted state and the rotation switch is in the triggered state, the push rod is released and can rotate relative to the base.

[0061] In this way, when the rotary switch is in the locked state, the push rod can be locked in the posture when it is in the unfolded state. At this time, the push rod can be kept in the unfolded posture so that the user can hold the push rod to push the golf cart. When the rotary switch is in the triggered state, the rotary switch can release the push rod. At this time, the push rod can rotate from the unfolded state to the folded state to realize the storage of the golf cart. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0063] Figure 1 Structural schematic diagram of the foldable golf cart provided by the embodiment of the present application when it is in the unfolded state;

[0064] Figure 2 is Figure 1 Structural schematic diagram of the foldable golf cart in the folded state in;

[0065] Figure 3 is Figure 1 Partial exploded view of the foldable golf cart in;

[0066] Figure 4 is Figure 1 Partial structure diagram of the foldable golf cart in;

[0067] Figure 5 is Figure 1 Another partial exploded view of the foldable golf cart in;

[0068] Figure 6 is Figure 1 Partial cross-sectional view of the foldable golf cart in;

[0069] Figure 7 is Figure 6 Partial enlarged view of part A in;

[0070] Figure 8 is Figure 2 Partial cross-sectional view of the foldable golf cart in;

[0071] Figure 9 is Figure 8 Partial enlarged view of part B in;

[0072] Figure 10 is Figure 1Schematic structural diagram of the putter of the foldable golf cart;

[0073] Figure 11 is Figure 10 Exploded structural diagram of the putter shown in.

[0074] Explanation of reference numerals:

[0075] 10 - Golf cart;

[0076] 100 - Base; 200 - Putter; 300 - Rear wheel assembly; 400 - Front wheel assembly; 500 - Rotating shaft; 600 - Gear set;

[0077] 110 - Limiting member; 120 - Support member; 130 - Guide seat; 140 - Rotating switch; 201 - Connecting beam; 210 - Lower rod; 220 - Upper rod; 310 - Rear wheel axle; 320 - Rear wheel; 410 - Link; 420 - Front wheel; 510 - Sliding member; 520 - Second groove; 610 - Gear pair; 620 - Connecting shaft;

[0078] 111 - Limiting hole; 121 - First groove; 211 - Telescopic switch; 212 - Rotating locking hole; 221 - Holding part; 222 - Telescopic locking hole; 311 - Main shaft; 312 - Moving sleeve; 411 - First rod; 412 - Second rod; 611 - Driving wheel; 612 - Driven wheel;

[0079] 1111 - Limiting groove; 3101 - Helical groove; 3102 - Limiting strip; 3111 - Core shaft; 3112 - Guide sleeve; 3121 - Positioning groove. Detailed implementation manners

[0080] As described in the background art, for the existing foldable golf cart, the transmission structure for realizing folding is generally relatively complex, resulting in a complex folding method of the golf cart and a relatively large volume after folding, which is not convenient for carrying. Moreover, the movement trajectory of the transmission structure for realizing folding has a large coverage area, and it is easy to interfere with other components of the whole vehicle, affecting the smooth folding of the golf cart and also the layout of other components of the whole vehicle.

[0081] In view of this, an embodiment of the present application provides a foldable golf cart. The foldable golf cart includes a base, a rotating shaft, a push rod, and a rear wheel assembly. The rotating shaft is rotatably connected to the base. The push rod is drivingly connected to the rotating shaft. The rear wheel assembly is movably connected to both ends of the rotating shaft. In the rear wheel assembly, one end of the rear wheel shaft is sleeved with the rotating shaft, and the rear wheel is connected to the other end of the rear wheel shaft. With such a setting, the push rod can rotate relative to the base to achieve the folding of the push rod. At the same time, the push rod can drive the rotating shaft to rotate. As the rotating shaft rotates, the rear wheel shaft expands and contracts along the axial direction of the rotating shaft, driving the rear wheel to move toward or away from the rotating shaft, thereby accommodating the rear wheel.

[0082] By rotating the push rod to drive the rotating shaft to rotate, and then driving the rear wheel assembly to move along the axial direction of the rotating shaft, the accommodation and extension of the rear wheel assembly are realized. In this way, the transmission method of the foldable golf cart is simple and the folding is convenient. Moreover, the movement trajectory coverage area of the rear wheel assembly is small, the folding and unfolding are flexible, and there will be no interference with other components. It can ensure the smooth folding of the foldable golf cart and will not affect the layout of other components of the whole vehicle.

[0083] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0084] Figure 1 It is a schematic structural diagram of the foldable golf cart provided by the embodiment of the present application when it is in the unfolded state. Figure 2 For Figure 1 the schematic structural diagram of the foldable golf cart in the folded state in

[0085] Referring to Figure 1 and Figure 2 As shown, an embodiment of the present application provides a foldable golf cart (hereinafter simply referred to as a golf cart). The golf cart 10 includes a base 100, a push rod 200, and a wheel mechanism. The base 100 is located at the bottom of the whole vehicle and is the main frame of the golf cart 10. The push rod 200 is movably connected to the base 100. The bottom end of the push rod 200 can rotate relative to the base 100 so that the push rod 200 can rotate toward or away from the base 100. The wheel mechanism is connected to the base 100, and the wheel mechanism can roll along the ground to realize the movement of the golf cart 10.

[0086] Referring to Figure 1As shown, when the golf cart 10 is in the unfolded state, the push rod 200 can be oppositely arranged on the base 100. At this time, on the basis that the base 100 plays a main supporting role, the push rod 200 also serves as the standing frame of the golf cart 10, and golf equipment such as golf bags can be supported on the base 100 and leaned against the push rod 200. Thus, the function of the golf cart 10 to carry golf equipment is realized.

[0087] Referring to Figure 2 As shown, when the golf cart 10 is in the folded state, the push rod 200 can be rotated to be folded on the base 100. For example, the push rod 200 is supported on the top of the base 100 in parallel with the base 100. At this time, the space occupied by the push rod 200 alone is significantly reduced, and the push rod 200 does not even occupy the height space of the golf cart 10 alone. As shown in the figure, for example, the push rod 200 is located within the height space of the wheel mechanism. Thus, the volume of the golf cart 10 is significantly reduced, facilitating the storage and carrying of the golf cart 10.

[0088] Continuing to refer to Figure 1 and Figure 2 , the wheel mechanism may include a rear wheel assembly 300. Along the traveling direction of the golf cart 10, the rear wheel assembly 300 may be connected to a position near the rear end of the base 100. The wheel mechanism may further include a front wheel assembly 400. Along the traveling direction of the golf cart 10, the front wheel assembly 400 may be connected to the front end of the base 100.

[0089] Exemplarily, the wheel mechanism may include two rear wheel assemblies 300. The two rear wheel assemblies 300 may be respectively located on the left and right sides of the base 100, and the two rear wheel assemblies 300 may be symmetrically arranged along the center line of the base 100. The wheel mechanism may include one front wheel assembly 400. The front wheel assembly 400 may be located at the front end of the base 100, and the front wheel assembly 400 may be located on the center line of the base 100. In this way, the two rear wheel assemblies 300 and one front wheel assembly 400 form a triangular structure, which can ensure the stable support of the base 100 to realize the stable traveling of the golf cart 10.

[0090] In addition, the rear wheel assembly 300 may be rotatably connected to the base 100 in a manner of rotating around its own central axis, and the rear wheel assembly 300 is only used to realize the forward and backward movement of the golf cart 10. In addition to rotating around its own central axis, the front wheel assembly 400 may also be rotatably connected to the base 100 in a manner of 360° rotation, and the front wheel assembly 400 can be used to change the traveling direction of the golf cart 10. Of course, in other examples, it may also be that the rear wheel assembly 300 rotates 360° and the front wheel assembly 400 only rotates around its own central axis, or both the front wheel assembly 400 and the rear wheel assembly 300 can achieve 360° rotation. This embodiment does not make specific limitations on this.

[0091] Figure 3 is Figure 1 a partial exploded view of the foldable golf cart in Figure 3 As shown in reference

[0092] Exemplarily, mounting holes (not shown in the figure) may be provided on the side walls on both the left and right sides of the base 100. The mounting holes on both sides may be arranged oppositely, and both ends of the rotating shaft 500 may pass through the mounting holes on both sides of the base 100. Alternatively, a support structure may also be provided inside the base 100. The support structure is, for example, arranged close to the side walls on both the left and right sides of the base 100, and both ends of the rotating shaft 500 may pass through the support structure. Or, while mounting holes are provided on the side walls on both the left and right sides of the base 100, a support structure (such as the support member 120 mentioned later) is also provided inside the base 100. The middle part of the rotating shaft 500 is supported on (such as passing through) the support structure, and both ends of the rotating shaft 500 pass through the mounting holes. In this way, the rotating shaft 500 can be supported on the base 100, and the rotating shaft 500 can rotate along the hole wall of the mounting hole to achieve the rotation of the rotating shaft 500.

[0093] Limit members 110 may also be connected to the side walls on both sides of the base 100. The limit members 110 may be installed on the outer side walls of the base 100. The limit members 110 may be blocked at both ends of the rotating shaft 500. By abutting the end face of the rotating shaft 500 against the end face of the limit member 110, axial limitation of the rotating shaft 500 is achieved, and the rotation of the rotating shaft 500 is not restricted.

[0094] Alternatively, the base 100 itself may also form a limiting structure. For example, the side walls on both the left and right sides of the base 100 itself may serve as limiting walls. The side walls on both the left and right sides of the base 100 itself are blocked at both ends of the rotating shaft 500, and the end face of the rotating shaft 500 abuts against the inner side wall of the base 100 to achieve axial limitation of the rotating shaft 500, and the rotation of the rotating shaft 500 is not restricted.

[0095] The push rod 200 is in transmission connection with the rotating shaft 500. When the push rod 200 rotates relative to the base 100, the push rod 200 can drive the rotating shaft 500 to rotate.

[0096] In some embodiments, the push rod 200 can be directly connected to the rotating shaft 500. For example, the bottom end of the push rod 200 is fixedly connected to the outer wall surface of the rotating shaft 500. By pushing the push rod 200 to swing on the base 100, the push rod 200 can directly drive the rotating shaft 500 to rotate. At this time, the rotating shaft 500 also serves as the installation base of the push rod 200, and the push rod 200 is rotatably connected to the base 100 through the rotating shaft 500.

[0097] In other embodiments, the push rod 200 can be drivingly connected to the rotating shaft 500 through a transmission structure. The push rod 200 does not directly drive the rotating shaft 500 to rotate, but drives the rotating shaft 500 to rotate through the transmission structure. At this time, the push rod 200 (for example, the bottom end of the push rod 200) and the base 100 can be connected through other rotating shafts (such as the connecting shaft 620 mentioned later). This rotating shaft is relatively fixed at a certain position on the base 100, and the push rod 200 can swing relative to the base 100 around this rotating shaft.

[0098] It should be noted that when the push rod 200 is directly connected to the rotating shaft 500, while the push rod 200 drives the rotating shaft 500 to move, the part of the push rod 200 connected to the rotating shaft 500 will move in the circumferential direction of the rotating shaft 500. In this way, the position of the push rod 200 (for example, the bottom end of the push rod 200) on the base 100 is not fixed, and the movement trajectory coverage range of the push rod 200 is relatively large, and it may interfere with other components of the whole vehicle. Moreover, it is necessary to design the movement trajectory of the push rod 200 according to the attitude of the push rod 200 when the golf cart 10 is in the unfolded state, and then design the connection position between the push rod 200 and the rotating shaft 500, which will increase the design difficulty of the golf cart 10.

[0099] Therefore, hereinafter, the case where the push rod 200 is drivingly connected to the rotating shaft 500 through a transmission structure will be taken as an example for description.

[0100] Continue to refer to Figure 3 , the transmission structure connected between the push rod 200 and the rotating shaft 500 can include a gear set 600. The gear set 600 can be connected between the bottom end of the push rod 200 and the rotating shaft 500. The gear set 600 includes meshing gears, and the rotational energy is transmitted through these gears. Thus, the push rod 200 transmits its rotational energy to the gear set 600, and then the gear set 600 transmits the rotational energy to the rotating shaft 500 to drive the rotating shaft 500 to rotate.

[0101] Specifically, the gear set 600 may include a gear pair 610, and the gear pair 610 includes a driving wheel 611 and a driven wheel 612 that mesh with each other. The driving wheel 611 is connected to the bottom end of the push rod 200, and the driven wheel 612 is sleeved on the outer wall of the rotating shaft 500. The driven wheel 612 meshes with the driving wheel 611. In this way, when the push rod 200 rotates relative to the base 100, the push rod 200 drives the driving wheel 611 to rotate synchronously. The driving wheel 611 drives the driven wheel 612 meshing with it to rotate relatively, and the driven wheel 612 then drives the rotating shaft 500 to rotate synchronously. In this way, the rotational energy of the push rod 200 is transmitted to the rotating shaft 500. During the rotation of the push rod 200, the rotating shaft 500 also rotates accordingly.

[0102] Regarding the quantity design of the gear pair 610, as an implementation manner, the gear set 600 may include two pairs of gear pairs 610. The two driving wheels 611 in the two pairs of gear pairs 610 may be respectively located on the left and right sides of the push rod 200. The positions of the two driven wheels 612 in the two pairs of gear pairs 610 on the outer wall of the rotating shaft 500 may correspond to the two driving wheels 611 respectively, so as to reliably achieve the meshing of the driven wheel 612 and the driving wheel 611. In this way, there are two transmission connection parts arranged at intervals between the push rod 200 and the rotating shaft 500. The transmission of force between the push rod 200 and the rotating shaft 500 is more balanced, the transmission connection between the push rod 200 and the rotating shaft 500 is more reliable, and the movement cooperation between the two is smoother.

[0103] In addition, the push rod 200 in this embodiment may be flat. The flat push rod 200 may extend along the vertical direction of the traveling direction of the golf cart 10 (for example, the width direction of the base 100). On the one hand, the surface area of the push rod 200 is larger, which can enhance the structural strength and reliability of the push rod 200. On the other hand, the thickness of the push rod 200 in the traveling direction of the golf cart 10 (for example, the length direction of the base 100) is smaller, which is beneficial to reducing the overall volume of the golf cart 10 and improving the lightness of the golf cart 10.

[0104] For the flat push rod 200, by arranging the two pairs of gear pairs 610 on the left and right sides of the push rod 200 respectively, there is enough space between the two pairs of gear pairs 610, and sufficient transmission force can be generated on both sides of the push rod 200, so that the push rod 200 can drive the rotating shaft 500 to rotate more stably and reliably. At the same time, the two pairs of gear pairs 610 avoid the planar space occupied by the push rod 200 itself. The driving wheel 611 does not separately occupy the thickness space, and the thickness space of the driving wheel 611 and the thickness space of the push rod 200 can overlap. In this way, the overall thickness space occupied by the push rod 200 and the driving wheel 611 is smaller. After the golf cart 10 is folded, the push rod 200 can be closer to the rotating shaft 500, which can reduce the volume of the whole vehicle after folding and is more convenient for storing the golf cart 10.

[0105] On this basis, the two driving wheels 611 of the two pairs of gear pairs 610 can be connected by a connecting shaft 620, and the connecting shaft 620 is connected to the push rod 200, so that the two driving wheels 611 rotate with the push rod 200. The connecting shaft 620 limits the synchronous rotation of the two driving wheels 611, ensures the smooth rotation of the push rod 200, and the transmission between the push rod 200 and the rotating shaft 500 is more accurate. In addition, the connecting shaft 620 can be used as the rotating shaft of the push rod 200, and the push rod 200 rotates around the connecting shaft 620 to realize the expansion and folding of the push rod 200 relative to the base 100.

[0106] Continue to refer to Figure 3 , the connecting shaft 620 can be located outside the thickness space of the push rod 200. Taking the golf trolley 10 in the unfolded state as a reference, the connecting shaft 620 can be specifically located on the side of the push rod 200 facing the front end of the base 100. In this way, the connecting shaft 620 serves as the rotation center of the driving wheel 611, which can make the driving wheel 611 closer to the rotating shaft 500 relative to the push rod 200, so as to facilitate the engagement of the driving wheel 611 with the driven wheel 612 on the rotating shaft 500. In addition, when the golf trolley 10 is in the unfolded state, the push rod 200 can occupy the space between the connecting shaft 620 and the rear end of the base 100, which can make full use of the layout space of the base 100 and reduce the volume of the whole vehicle. In addition, a certain distance can be reserved between the connecting shaft 620 and the bottom end surface of the push rod 200, so as to make full use of the radial space of the driving wheel 611, and reduce the gap between the push rod 200 and the rotating shaft 500 while the push rod 200 avoids the rotating shaft 500. A certain force arm is formed between the connecting shaft 620 and the end of the push rod 200 (close to the rotating shaft 500), thereby improving the stability and reliability of the push rod 200 during the rotation process.

[0107] When the connecting shaft 620 is located on the side of the push rod 200 facing the front end of the base 100, a connecting beam 201 can be provided on the side plate surface of the push rod 200 facing the front end of the base 100, and the connecting beam 201 can be located at the bottom end of the push rod 200. Connecting plates can be extended from both ends of the connecting beam 201, and the rotating shaft 500 can be passed through the connecting plates at both ends of the connecting beam 201 to fix the connecting shaft 620 on the push rod 200, so as to realize that the two driving wheels 611 of the two pairs of gear pairs 610 are arranged on the left and right sides of the push rod 200. Exemplarily, the connecting beam 201 can be connected to the push rod 200 by fasteners such as bolts and screws, or the connecting beam 201 can be welded, bonded or even integrally formed on the push rod 200.

[0108] To this end, in order to position the rotation point of the push rod 200 on the base 100, a support member 120 may be provided on the base 100. The support member 120 may be fixedly connected to the inner bottom wall of the base 100. For example, the support member 120 is connected to the inner bottom wall of the base 100 by fasteners such as bolts and screws, or the support member 120 is welded, bonded or even integrally formed on the inner bottom wall of the push base 100. The support member 120 extends towards the bottom end of the push rod 200, and the connecting shaft 620 may be passed through the support member 120. For example, a connecting hole is formed at the top of the support member 120, and the connecting hole penetrates through the left and right ends of the support member 120, and the connecting shaft 620 is passed through the connecting hole of the support member 120.

[0109] On this basis, the support member 120 may also support the rotating shaft 500 rotatably connected to the base 100. For example, a mounting hole may also be formed in the support member 120, and the mounting hole also penetrates through the left and right ends of the support member 120, and the rotating shaft 500 passes through the mounting hole of the support member 120.

[0110] In this way, the support member 120 allows the connecting shaft 620 between the two driving wheels 611 to pass through, and the support member 120 also allows the rotating shaft 500 to pass through. In this way, there are more contact parts between the rotating shaft 500 and the base 100, and the rotating shaft 500 is installed on the base 100 more stably and reliably. At this time, the center distance between the connecting hole and the mounting hole on the support member 120 can be designed according to the center distance between the driving wheel 611 and the driven wheel 612 in the gear pair 610. The support member 120 is matched with the structural design of the gear pair 610 to realize the power transmission between the push rod 200 and the rotating shaft 500.

[0111] In addition, as described above, the driving wheels 611 in the two gear pairs 610 are respectively arranged on the left and right sides of the push rod 200, and the support member 120 located between the two driving wheels 611 can be correspondingly arranged with the push rod 200. Thus, the center lines of the push rod 200 and the support member 120 can both be located on the center line of the base 100, and the golf cart 10 can be integrally designed as an axisymmetric structure. The whole golf cart 10 is in balanced force, the force transmission path is more accurate, the golf cart 10 has good stability, high reliability and longer service life.

[0112] It should be noted that when the push rod 200 and the rotating shaft 500 are driven by a gear pair 610, the rotation direction of the driving wheel 611 in the gear pair 610 is the same as that of the push rod 200, while the rotation direction of the driven wheel 612 meshing with the driving wheel 611 is opposite to that of the driving wheel 611. Therefore, the rotation direction of the rotating shaft 500 is opposite to that of the push rod 200. Taking the case where the push rod 200 swings towards the base 100 to the folded state and the rotation direction of the push rod 200 is clockwise as an example, during this process, the rotating shaft 500 rotates counterclockwise. On the contrary, when the push rod 200 swings away from the base 100 to the unfolded state and the rotation direction of the push rod 200 is counterclockwise, during this process, the rotating shaft 500 rotates clockwise.

[0113] In contrast, when the bottom end of the push rod 200 is directly fixedly connected to the rotating shaft 500, the push rod 200 directly transfers the rotational energy to the rotating shaft 500, and the rotation direction of the rotating shaft 500 is the same as that of the push rod 200. Continuing with the example where the push rod 200 swings towards the base 100 to the folded state and the rotation direction of the push rod 200 is clockwise, during this process, the rotating shaft 500 rotates clockwise. On the contrary, when the push rod 200 swings away from the base 100 to the unfolded state and the rotation direction of the push rod 200 is counterclockwise, during this process, the rotating shaft 500 rotates counterclockwise.

[0114] For the convenience of explaining the movement mode of the rotating shaft 500 driving the rear wheel assembly 300 in the following text, in this embodiment, when the push rod 200 and the rotating shaft 500 are driven by a gear pair 610 and the push rod 200 swings towards the base 100 to the folded state, the rotation direction of the driven wheel 612 driving the rotating shaft 500 to rotate is defined as the first direction. When the push rod 200 is directly connected to the rotating shaft 500 and the push rod 200 swings towards the base 100 to the folded state, the rotation direction of the push rod 200 driving the rotating shaft 500 to rotate is defined as the second direction. Then, the second direction is opposite to the first direction.

[0115] Figure 4 For Figure 1 the partial structure diagram of the foldable golf cart in Figure 4 As shown in the figure, the structure of the golf cart 10 after removing the push rod 200 and the base 100 is schematically shown. As shown in the figure, the rear wheel assembly 300 is movably connected to both ends of the rotating shaft 500. During the rotation of the rotating shaft 500, it can drive the rear wheel assembly 300 to move to realize the storage and extension of the rear wheel assembly 300.

[0116] Specifically, the rear wheel assembly 300 may include a rear wheel shaft 310 and a rear wheel 320. One end of the rear wheel shaft 310 is sleeved with the rotating shaft 500, and the rear wheel 320 is connected to the other end of the rear wheel shaft 310. As the rotating shaft 500 rotates, the rear wheel shaft 310 can move axially along the rotating shaft 500 to achieve the axial expansion and contraction of the rear wheel assembly 300.

[0117] As an implementation manner, the rear wheel shaft 310 may be inserted into the rotating shaft 500, and the outer wall of the rear wheel shaft 310 slides along the inner wall of the rotating shaft 500. As another implementation manner, the rear wheel shaft 310 may also be sleeved outside the rotating shaft 500, and the inner wall of the rear wheel shaft 310 slides along the outer wall of the rotating shaft. Hereinafter, the case where the rear wheel shaft 310 is inserted into the rotating shaft 500 will be taken as an example for description.

[0118] A limiting hole 111 is formed on the base 100, and the limiting hole 111 is located on the left and right sides of the base 100, for example. One end of the rear wheel shaft 310 passes through the limiting hole 111 and extends into the base to achieve the mutual sleeving of the rear wheel shaft 310 and the rotating shaft 500. When limiting members 110 can be connected to the outer side walls on both sides of the base 100, the limiting hole 111 may be formed on the limiting members 110. When the base 100 does not have an additional limiting member 110, the limiting hole 111 may be directly formed on the base 100 itself. For example, the limiting hole 111 is formed on the side walls on the left and right sides of the base 100.

[0119] Wherein, when the push rod 200 swings away from the base 100 to the unfolded state, during the process of the push rod 200 driving the rotating shaft 500 to rotate, the rear wheel shaft 310 moves outward relative to the rotating shaft 500, and the rear wheel shaft 310 gradually extends out of the rotating shaft 500 until the rear wheel 320 moves to the position farthest from the outer side wall of the base 100, and the rear wheel assembly 300 moves to the unfolded position. On the contrary, when the push rod 200 swings towards the base 100 to the folded state, during the process of the push rod 200 driving the rotating shaft 500 to rotate, the rear wheel shaft 310 moves inward relative to the rotating shaft 500, and the rear wheel shaft 310 gradually retracts into the rotating shaft 500 until the rear wheel 320 moves to the position closest to the outer side wall of the base 100 (for example, the rear wheel 320 abuts against the outer side wall of the base 100), and the rear wheel assembly 300 moves to the storage position.

[0120] With such a setting, the rotation of the push rod 200 drives the rotation of the rotating shaft 500, and further, the rotation of the rotating shaft 500 drives the rear wheel assembly 300 to move axially along the rotating shaft 500 to achieve the storage and extension of the rear wheel assembly 300. When the golf cart 10 is in the folded state, not only the push rod 200 is folded on the base 100, but also the rear wheel assembly 300 contracts inward. The left and right dimensions of the golf cart 10 are reduced, and the folding volume of the whole vehicle is decreased, which is more convenient for the storage and carrying of the golf cart 10.

[0121] Furthermore, the rear wheel assembly 300 moves along the axial direction of the rotating shaft 500, and the movement mode is simple, which is convenient for the movement structure design of the golf trolley 10 and reduces the design and development cost of the golf trolley 10. At the same time, the movement track of the rear wheel assembly 300 covers a small area, and the rear wheel assembly 300 is flexible to fold and unfold without interfering with other parts of the vehicle. It can ensure that the golf trolley 10 can be folded and unfolded smoothly without affecting the layout design of other parts of the vehicle.

[0122] Figure 5 for Figure 1 Another partial exploded structural diagram of the foldable golf cart in FIG. Figure 6 for Figure 1 A partial cross-sectional view of a foldable golf cart. Figure 7 for Figure 6 A partial enlarged view of point A in the middle.

[0123] Figure 8 for Figure 2 A partial cross-sectional view of a foldable golf cart. Figure 9 for Figure 8 A partial enlarged view of point B in the middle.

[0124] Reference Figure 5 As shown in the figure, Figure 4 The partial structure of the golf trolley 10 is further decomposed. As shown in the figure, in order to realize the axial extension and contraction of the rear wheel assembly 300 driven by the rotating shaft 500, one of the rotating shaft 500 and the rear wheel shaft 310 can be provided with a sliding member 510, and the other can be provided with a spiral groove 3101. When the rear wheel shaft 310 is inserted into the rotating shaft 500, the spiral groove 3101 spirally extends along the inner wall of the rotating shaft 500 or the outer wall of the rear wheel shaft 310, and the sliding member 510 extends into the spiral groove 3101, and the sliding member 510 can slide along the spiral groove 3101.

[0125] During the rotation of the rotating shaft 500, the position of the sliding member 510 on the rotating shaft 500 is fixed. The sliding member 510 slides along the spiral groove 3101, which can be converted into the axial movement of the rear wheel shaft 310 along the rotating shaft 500. Therefore, the rear wheel shaft 310 is extended and retracted along the axial direction of the rotating shaft 500, so that the rear wheel assembly 300 can be stored and extended.

[0126] In some embodiments, a plurality of spiral grooves 3101 may be provided on one of the rotating shaft 500 and the rear wheel shaft 310, and the spiral grooves 3101 may be arranged at intervals along the circumferential direction of the rotating shaft 500 or the rear wheel shaft 310. Correspondingly, a plurality of sliding members 510 may also be connected to the other of the rotating shaft 500 and the rear wheel shaft 310, and the sliding members 510 may also be arranged at intervals along the circumferential direction of the rotating shaft 500 or the rear wheel shaft 310. Each sliding member 510 corresponds to each spiral groove 3101, and each sliding member 510 extends into each spiral groove 3101. In this way, during the process of the rotating shaft 500 driving the rear wheel shaft 310 to move, each sliding member 510 slides along each spiral groove 3101, and forces are generated at different circumferential positions between the rotating shaft 500 and the rear wheel shaft 310, and the force between the two is more uniform, which can make the relative movement between the two more stable and reliable. Moreover, the movement trajectory of the rear wheel shaft 310 is more accurate, and the overall reliability of the golf cart 10 is higher and the service life is longer.

[0127] Exemplarily, the spiral grooves 3101 may be arranged at uniform intervals along the circumferential direction of one of the rotating shaft 500 and the rear wheel shaft 310. Correspondingly, the sliding members 510 may also be arranged at uniform intervals along the circumferential direction of the other of the rotating shaft 500 and the rear wheel shaft 310. In this way, the force uniformity between the rear wheel shaft 310 and the rotating shaft 500 is good, and the movement accuracy of the overall golf cart 10 is high. For example, three, four or more spiral grooves 3101 are arranged at uniform intervals along the circumferential direction on one of the inner wall of the rotating shaft 500 and the outer wall of the rear wheel shaft 310, and three, four or more sliding members 510 are arranged at uniform intervals along the circumferential direction on the other of the rotating shaft 500 and the rear wheel shaft 310.

[0128] When the rear wheel shaft 310 is disposed through the rotating shaft 500, the spiral grooves 3101 may be provided on the outer wall of the rear wheel shaft 310, and the sliding members 510 may be provided on the rotating shaft 500. The sliding members 510 may adopt a separable connection manner with the rotating shaft 500, and the sliding members 510 may be connected to the rotating shaft 500 from the outer wall of the rotating shaft 500. After the rear wheel shaft 310 extends into the rotating shaft 500, the position of the spiral groove 3101 can be adjusted by rotating the rear wheel shaft 310 so that the sliding member 510 can be correspondingly inserted into the spiral groove 3101. This avoids the inconvenience that when the sliding members 510 are provided on the rear wheel shaft 310 and the spiral grooves 3101 are provided on the inner wall of the rotating shaft 500, it is impossible to observe the spiral grooves 3101 and locate the sliding members 510 from the outside of the rotating shaft 500, and it is necessary to constantly grope to adjust the relative positions of the rear wheel shaft 310 and the rotating shaft 500. In this way, it is more convenient for the assembly of the rear wheel shaft 310 and the rotating shaft 500, the assembly difficulty between the two can be reduced, and the assembly efficiency between the two can be improved.

[0129] Of course, if it is easy to assemble the rear wheel shaft 310 and the rotating shaft 500, the spiral groove 3101 can also be set on the inner wall of the rotating shaft 500, and the sliding member 510 can be set on the rear wheel shaft 310. This embodiment does not limit this. The following description is based on the example that the sliding member 510 is set on the rotating shaft 500 and the spiral groove 3101 is set on the outer wall of the rear wheel shaft 310.

[0130] In addition, when the push rod 200 and the rotating shaft 500 are connected by the aforementioned gear pair 610, the driven wheel 612 sleeved outside the rotating shaft 500 can be fixedly connected to the rotating shaft 500 by fasteners such as bolts, screws or rivets. At this time, the fastener connected to the driven wheel 612 can be used as a sliding member 510 connected to the rotating shaft 500, and the fastener passes through the rotating shaft 500 and extends into the spiral groove 3101 on the outer wall of the rear wheel shaft 310, so that the rotating shaft 500 drives the rear wheel shaft 310 to move. In this way, there is no need to specially set up an additional sliding member 510, which simplifies the connection structure of the rotating shaft 500 and the rear wheel shaft 310, can improve the whole vehicle assembly efficiency of the golf trolley 10, and reduce the whole vehicle cost. In addition, the fastener itself has good rigidity, and the fastener is firmly connected to the rotating shaft 500, which can improve the transmission reliability between the rotating shaft 500 and the rear wheel shaft 310.

[0131] For ease of description, in this embodiment, the end of the rear wheel shaft 310 facing the rear wheel 320 is defined as the first end of the rear wheel 320, and the end of the rear wheel shaft 310 facing away from the rear wheel 320 is defined as the second end of the rear wheel 320. In addition, the spiral direction of the rear wheel shaft 310 is defined by the extension direction of the spiral groove 3101 from the first end of the rear wheel shaft 310 to the second end of the rear wheel shaft 310. In order to match the motion state of the rear wheel assembly 300 with the motion state of the entire machine, the spiral direction of the spiral groove 3101 should be designed.

[0132] Specifically, the spiral direction of the spiral groove 3101 should be opposite to the rotation direction of the rotating shaft 500 when the push rod 200 is folded toward the base 100. Therefore, when the push rod 200 swings away from the base 100 to the unfolded state, the sliding member 510 on the rotating shaft 500 slides along the spiral groove 3101 from the first end of the rear wheel shaft 310 to the second end of the rear wheel shaft 310, so that the rear wheel shaft 310 moves toward the outside of the rotating shaft 500 and reaches the unfolded position (see Figure 6 and Figure 7 When the push rod 200 swings toward the base 100 to the folded state, the sliding member 510 on the rotating shaft 500 slides along the spiral groove 3101 from the second end of the rear wheel shaft 310 to the first end of the rear wheel shaft 310, so that the rear wheel shaft 310 moves toward the inside of the rotating shaft 500 to reach the storage position (see Figure 8 and Figure 9 shown).

[0133] Taking the example of transmission between the push rod 200 and the rotating shaft 500 through the gear pair 610, when the push rod 200 swings to the folded state, the rotation direction of the rotating shaft 500 is the first direction, and the spiral direction of the spiral groove 3101 on the outer wall of the rear wheel shaft 310 is the second direction. Taking the example of direct connection between the push rod 200 and the rotating shaft 500, when the push rod 200 swings to the folded state, the rotation direction of the rotating shaft 500 is the second direction, and the spiral direction of the spiral groove 3101 on the outer wall of the rear wheel shaft 310 is the first direction.

[0134] It should be noted that in order to achieve axial movement of the rear wheel shaft 310 along the rotating shaft 500, it is necessary to overcome a large friction force. In particular, when the rear wheel 320 contacts the ground, since the rolling friction is much smaller than the sliding friction, the rear wheel 320 is more likely to roll around its own axis, and is not easy to slide axially along its axis. If the sliding member 510 on the rotating shaft 500 and the spiral groove 3101 on the rear wheel shaft 310 are simply matched, it is possible that the sliding member 510 is only used to move the rear wheel shaft 310, and the sliding member 510 is in a stationary state in the spiral groove 3101. At this time, the rear wheel shaft 310 will rotate synchronously with the rotating shaft 500, and the rear wheel shaft 310 will not move axially along the rotating shaft 500.

[0135] Therefore, in this embodiment, the rear wheel shaft 310 may also be provided with a first anti-rotation portion, and the first anti-rotation portion covers at least part of the axial length of the rear wheel shaft 310. Correspondingly, the limiting hole 111 on the base 100 through which the rear wheel shaft 310 passes may also be provided with a second anti-rotation portion. The positions of the first anti-rotation portion and the second anti-rotation portion correspond to each other, and the first anti-rotation portion and the second anti-rotation portion match and cooperate with each other, so as to hinder the rotational movement of the rear wheel shaft 310.

[0136] The first cross section of the rear wheel axle 310 within at least part of the axial length is non-circular to form a first anti-rotation portion, and the second cross section of the limiting hole 111 within at least part of the axial length is also non-circular to form a second anti-rotation portion. In this way, through the cooperation of the first anti-rotation portion and the second anti-rotation portion, the rear wheel axle 310 can be hindered from rotating relative to the base 100, and the rear wheel axle 310 can be prevented from rotating synchronously with the rotating shaft 500. In addition, the movement of the rear wheel axle 310 relative to the rotating shaft 500 can also be guided.

[0137] The first anti-rotation portion may extend along the axial direction of the rear wheel axle 310. In this way, the first anti-rotation portion may enable the rear wheel axle 310 to move along its own axial direction, and realize the expansion and contraction of the rear wheel assembly with the shortest movement path.

[0138] In some embodiments, the first anti-rotation portion is a convex structure protruding from the outer wall of the rear wheel shaft 310, and the second anti-rotation portion is a chute structure formed on the hole wall of the limiting hole 111. Alternatively, the first anti-rotation portion is a chute structure formed on the outer wall of the rear wheel shaft 310, and the second anti-rotation portion is a convex structure protruding from the hole wall of the limiting hole 111.

[0139] The convex structure and the chute structure make the first cross-section and the second cross-section non-circular. Through the non-circular cross-section matching in the above embodiments, the rear wheel shaft and the limiting hole can achieve no rotational movement and only axial movement. The rear wheel shaft 310 moves relative to the base 100 by the convex structure sliding along the chute structure. The convex structure can be integrally formed with the rear wheel shaft or fixedly connected after being separately formed from the rear wheel shaft.

[0140] In some embodiments, the first cross-section within at least a partial axial range of the rear wheel shaft 310 can be triangular, rectangular, elliptical, or irregular, etc. The shape of the second cross-section within at least a partial axial range of the limiting hole 11 is adapted to the first cross-section. Through the non-circular cross-section matching in the above embodiments, the rear wheel shaft and the limiting hole can achieve no rotational movement and only axial movement, which will not be elaborated here.

[0141] Continue to refer to Figure 5 , in this embodiment, the rear wheel shaft 310 may include a main shaft 311 and a moving sleeve 312. The main shaft 311 is the main structure of the rear wheel shaft 310, and the rear wheel 320 can be connected to the main shaft 311. The moving sleeve 312 is sleeved outside the main shaft 311, and the moving sleeve 312 can be fixedly connected to the main shaft 311. The moving sleeve 312 cooperates with the rotating shaft 500, and the rotating shaft 500 drives the moving sleeve 312 to move, thereby realizing the axial movement of the entire rear wheel shaft 310 along the rotating shaft 500.

[0142] One end of the main shaft 311 facing the rear wheel 320 can be regarded as the first end of the rear wheel shaft 310, while one end of the moving sleeve 312 facing the rear wheel 320 is at a certain distance from the first end of the rear wheel shaft 310, and one end of the moving sleeve 312 facing the rear wheel 320 can be located in the axial middle region of the main shaft 311. For example, the axial length of the moving sleeve 312 is less than the axial length of the main shaft 311 (for example, the axial length of the moving sleeve 312 is half of the axial length of the main shaft 311), one end of the moving sleeve 312 facing away from the rear wheel 320 is substantially flush with the corresponding end of the main shaft 311, and one end of the moving sleeve 312 facing the rear wheel 320 is located in the middle of the main shaft 311.

[0143] With such a setting, the moving sleeve 312 and the main shaft 311 can be processed separately, which is convenient for processing a spiral groove 3101 on the outer wall of the moving sleeve 312, simplifies the processing technology of the rear wheel shaft 310, and is beneficial to reducing the processing cost of the rear wheel shaft 310. Moreover, the main shaft 311 as a whole can be a solid structure, and the main shaft 311 has high structural strength, which can ensure the overall reliability of the rear wheel shaft 310. In addition, the moving sleeve 312 can be used to limit the moving range of the rear wheel shaft 310 to prevent the rear wheel shaft 310 from disengaging from the rotating shaft 500.

[0144] Among them, the aperture of the limiting hole 111 on the base 100 (such as the limiting hole 111 opened on the limiting member 110) can match the outer diameter of the main shaft 311, while the outer diameter of the moving sleeve 312 is greater than the aperture of the limiting hole 111. Thus, the main shaft 311 can move through the limiting hole 111, while the displacement of the moving sleeve 312 can be restricted by the limiting hole 111. As Figure 6 and Figure 7 shown, when one end of the moving sleeve 312 facing the rear wheel 320 abuts against the outer periphery of the limiting hole 111, the rear wheel assembly 300 is in the deployed position. Referring to Figure 8 and Figure 9 shown, when one end of the moving sleeve 312 facing the rear wheel 320 is away from the limiting hole 111, the wheel abuts against the outer side wall of the base 100 or one end of the moving sleeve 312 facing away from the wheel abuts against the limiting portion in the rotating shaft 500, the rear wheel assembly 300 is in the retracted position.

[0145] Since the axial length of the moving sleeve 312 is short, when the spiral groove 3101 is provided on the outer wall of the moving sleeve 312, the spiral groove 3101 can extend to both axial ends of the moving sleeve 312. In this way, the spiral groove 3101 has a sufficient extension length. By sliding the sliding member 510 connected to the rotating shaft 500 between the two ends of the spiral groove 3101, the rear wheel shaft 310 has a sufficient long moving distance, and the axial moving distance of the rear wheel shaft 310 can reach the axial length of the moving sleeve 312. Thus, when the push rod 200 is in the folded state, the rear wheel shaft 310 can be retracted into the rotating shaft 500 as much as possible, and the storage volume of the golf cart 10 can be reduced to the greatest extent.

[0146] Continue to refer to Figure 5The outer wall of the main shaft 311 may be provided with a raised limit strip 3102, and the limit strip 3102 is provided on the part of the main shaft 311 outside the movable sleeve 312. The hole wall of the limit hole 111 may be provided with a limit groove 1111. The limit groove 1111 and the limit strip 3102 both extend along the axial direction of the main shaft 311, and the limit strip 3102 extends into the limit groove 1111. The limit strip 3102 serves as the first anti-rotation portion formed on the outer wall of the rear wheel shaft 310, and the limit groove 1111 serves as the second anti-rotation portion formed on the limit hole 111.

[0147] When the main shaft 311 moves relative to the limiting member 110, the limiting strip 3102 on the main shaft 311 moves along the limiting groove 1111 of the limiting member 110, limiting the main shaft 311 to move along its own axial direction, thereby ensuring the accuracy of the movement trajectory of the main shaft 311. In addition, through the mutual cooperation of the limiting grooves 1111 and the limiting grooves 1111, the main shaft 311 can be positioned when it is installed, thereby ensuring the position accuracy of the rear wheel shaft 310.

[0148] Of course, the limiting groove 1111 can also be set on the outer wall of the main shaft 311, and the raised limiting strip 3102 can be set on the hole wall of the limiting hole 111. This embodiment does not limit this. The following is an example of the limiting groove 1111 being set on the hole wall of the limiting hole 111 and the raised limiting strip 3102 being set on the outer wall of the main shaft 311.

[0149] On this basis, the extension length of the stop bar 3102 protruding from the outer wall of the main shaft 311 can be increased so that the stop bar 3102 extends into the movable sleeve 312. Correspondingly, a positioning groove 3121 can be provided on the inner wall of the movable sleeve 312, the positioning groove 3121 extending from one end of the movable sleeve 312 facing the rear wheel 320 to the other end of the movable sleeve 312, and the stop bar 3102 extends into the positioning groove 3121. When the movable sleeve 312 is sleeved on the outer wall of the main shaft 311, the movable sleeve 312 and the main shaft 311 can be positioned. In this way, the main shaft 311 is positioned by the limiting groove 1111 on the limiting member 110, and the movable sleeve 312 is positioned by the limiting strip 3102 on the main shaft 311, so that the rear wheel axle 310 can be accurately positioned in the rotating shaft 500, ensuring that the sliding member 510 on the rotating shaft 500 can extend into the spiral groove 3101 on the rear wheel axle 310.

[0150] The extension length of the positioning groove 3121 formed on the inner wall of the movable sleeve 312 can be relatively short, and there is a distance between the positioning groove 3121 and the end of the movable sleeve 312 facing away from the rear wheel 320. In this way, the groove area on the inner wall of the movable sleeve 312 is relatively small, and the positioning groove 3121 has relatively little effect on the structural strength of the movable sleeve 312, thereby ensuring the structural strength and reliability of the movable sleeve 312.

[0151] Exemplarily, the positioning groove 3121 on the inner wall of the movable sleeve 312 can be staggeredly arranged with the spiral groove 3101 on the outer wall of the movable sleeve 312. The positioning groove 3121 can be, for example, located in the middle of two circumferentially adjacent spiral grooves 3101. Moreover, the positioning groove 3121 extending along the axial direction of the movable sleeve 312 only occupies a small section of the end of the movable sleeve 312. In the thickness direction of the movable sleeve 312, there is no overlap between the positioning groove 3121 and the spiral groove 3101, and there is no weak area in the movable sleeve 312, ensuring the reliability of the movable sleeve 312.

[0152] In addition, fasteners such as screws, bolts, and rivets can be inserted into the positioning groove 3121 of the movable sleeve 312, and the movable sleeve 312 can be locked to the main shaft 311 through the fasteners. In this way, the part of the fastener on the outer wall of the movable sleeve 312 can be completely accommodated in the positioning groove 3121. This avoids the fastener protruding on the outer wall of the movable sleeve 312, so as not to affect the movement of the movable sleeve 312 in the rotating shaft 500.

[0153] Continuing to refer to Figure 5 , in some embodiments, the main shaft 311 can also be designed in a split manner. The main shaft 311 can include a core shaft 3111 and a guide sleeve 3112. The core shaft 3111 is the central support shaft of the rear wheel shaft 310, and the rear wheel 320 can be connected to the core shaft 3111. The guide sleeve 3112 is sleeved outside the core shaft 3111, and the limiting strip 3102 protrudes on the outer wall of the guide sleeve 3112. In this way, the processing technology of the main shaft 311 is simpler. The core shaft 3111 and the guide sleeve 3112 can be processed separately, and then the guide sleeve 3112 can be fixedly connected outside the core shaft 3111. For example, the core shaft 3111 can be a solid cylinder, and the structure of the core shaft 3111 is simple and its structural strength is guaranteed. It is also easier to process the limiting strip 3102 on the outer wall of the guide sleeve 3112.

[0154] In addition, referring to Figure 7 or Figure 9 shown, by separately setting the core shaft 3111 and the guide sleeve 3112, the assembly method of the rear wheel assembly 300 is also more flexible. The guide sleeve 3112 can be sleeved outside the core shaft 3111 to assemble into the main shaft 311 first, and then the main shaft 311 can be integrally passed through the limiting member 110 and assembled into the steering shaft. Or, the guide sleeve 3112 can be passed through the limiting member 110 and assembled into the steering shaft first, and then the core shaft 3111 can be assembled into the guide sleeve 3112 to assemble into the main shaft 311.

[0155] Referring to Figure 4 or Figure 5As shown, in this embodiment, the front wheel assembly 400 can also be connected to the rotating shaft 500. During the rotation of the rotating shaft 500, it can drive the front wheel assembly 400 to move, so as to realize the storage and extension of the front wheel assembly 400.

[0156] Specifically, the front wheel assembly 400 can include a connecting rod 410 and a front wheel 420. One end of the connecting rod 410 is connected to the rotating shaft 500, and the front wheel 420 is connected to the other end of the connecting rod 410. With the rotation of the rotating shaft 500, the connecting rod 410 can make a rotary motion to drive the front wheel 420 to move towards or away from the rotating shaft 500, realizing the telescoping of the front wheel assembly 400. For example, the connecting rod 410 can extend along the traveling direction of the golf cart 10 (such as the length direction of the base 100), and the rotating shaft 500 can drive the connecting rod 410 to telescope along its extending direction, and the connecting rod 410 drives the front wheel 420 to move back and forth, realizing the storage and extension of the front wheel assembly 400.

[0157] Wherein, when the push rod 200 swings away from the base 100 to the unfolded state, during the process that the push rod 200 drives the rotating shaft 500 to rotate, the connecting rod 410 extends away from the rotating shaft 500 until the connecting rod 410 is completely unfolded into a straight line and drives the front wheel 420 to move to the position farthest from the front end of the base 100, and the front wheel assembly 400 moves to the unfolded position (see Figure 1 shown). On the contrary, when the push rod 200 swings towards the base 100 to the folded state, during the process that the push rod 200 drives the rotating shaft 500 to rotate, the connecting rod 410 contracts towards the rotating shaft 500 until the connecting rod 410 contracts to the maximum extent and drives the front wheel 420 to move to the position closest to the front end of the base 100, and the front wheel assembly 400 moves to the storage position (see Figure 2 shown).

[0158] With such a setting, the rotation of the push rod 200 drives the rotation of the rotating shaft 500, and further, the rotation of the rotating shaft 500 drives the front wheel assembly 400 to move in the front-back direction of the base 100, realizing the storage and extension of the front wheel assembly 400. When the golf cart 10 is in the folded state, not only the push rod 200 is folded on the base 100, but also the front wheel assembly 400 contracts inward. The front-back dimension of the golf cart 10 is reduced, and the folding volume of the whole vehicle is decreased, which is more convenient for the storage and carrying of the golf cart 10.

[0159] In addition, as described above, when the rotating shaft 500 drives the rear wheel assembly 300 and the front wheel assembly 400 to move simultaneously, when the golf cart 10 is in the folded state, both the rear wheel assembly 300 and the front wheel assembly 400 contract inward to the storage state. Thus, both the left-right dimension and the front-rear dimension of the golf cart 10 are reduced, greatly reducing the dimension of the golf cart 10 in the planar direction and significantly decreasing the folding volume of the whole vehicle, improving the portability of the golf cart 10.

[0160] Continue to refer to Figure 4 or Figure 5 , the connecting rod 410 connected between the rotating shaft 500 and the front wheel 420 may include a first rod 411 and a second rod 412. One end of the first rod 411 is rotatably connected to the rotating shaft 500, the other end of the first rod 411 is rotatably connected to one end of the second rod 412, and the other end of the second rod 412 is connected to the front wheel 420. In this way, during the process of the rotating shaft 500 driving the first rod 411 to rotate, the first rod 411 can also rotate relative to the rotating shaft 500, and the second rod 412 and the first rod 411 can also rotate relative to each other to achieve the telescoping of the connecting rod 410 driven by the rotating shaft 500.

[0161] Wherein, when the push rod 200 is in the unfolded state farthest from the base 100, the rotating shaft 500 drives the connecting rod 410 to rotate until the first rod 411 and the second rod 412 are in a straight line (see Figure 1 shown). At this time, the connecting rod 410 drives the front wheel 420 to move to the position farthest from the front end of the base 100, and the front wheel assembly 400 is in the unfolded state. When the push rod 200 is in the folded state closest to the base 100, the rotating shaft 500 drives the connecting rod 410 to rotate until the included angle between the first rod 411 and the second rod 412 reaches the minimum (see Figure 2 shown). At this time, the connecting rod 410 drives the front wheel 420 to move to the position closest to the front end of the base 100, and the front wheel assembly 400 is in the storage state.

[0162] On this basis, a guide seat 130 may be further provided on the base 100. The guide seat 130 is, for example, fixed on the inner wall of the base 100. The second rod 412 in the connecting rod 410 can pass through the guide seat 130 to limit the second rod 412 to extend in the horizontal direction through the guide seat 130. The second rod 412 is, for example, parallel to the inner bottom wall of the base 100. Moreover, the guide seat 130 also defines the moving direction of the second rod 412, enabling the second rod 412 to move linearly along its own axis and move in the horizontal direction. In this way, the second rod 412 can drive the front wheel 420 to move in the horizontal direction, ensuring that the traction force of the connecting rod 410 on the front wheel 420 remains in the horizontal direction. Ensure that the front wheel assembly 400 can be smoothly extended and contracted, and avoid interference between the front wheel assembly 400 and the ground or the base 100.

[0163] Exemplarily, the connecting rod 410 can be connected to the axial center position of the rotating shaft 500. In this way, the force between the front wheel assembly 400 and the rotating shaft 500 is balanced, and the rotating shaft 500 drives the front wheel assembly 400 to expand and contract smoothly and reliably. Moreover, the structural symmetry of the whole golf cart 10 is good, and it can walk smoothly.

[0164] When the support member 120 is located in the central region of the rotating shaft 500, a first groove 121 (see Figure 4 shown) can be formed on the support member 120. The first groove 121 extends, for example, along the circumferential direction of the rotating shaft 500. The first groove 121 corresponds to the connecting rod 410, and the first rod 411 in the connecting rod 410 extends through the first groove 121 towards the front end of the base 100.

[0165] In addition, a second groove 520 (see Figure 5 shown) can be formed on the rotating shaft 500. The second groove 520 extends, for example, along the circumferential direction of the rotating shaft 500. The second groove 520 also corresponds to the connecting rod 410 to reserve enough swinging space for the first rod 411 in the connecting rod 410 to avoid interference between the rotating shaft 500 and the first rod 411. When the first rod 411 has a large swinging amplitude, the first rod 411 can partially pass through the second groove 520 and extend into the rotating shaft 500 to achieve the avoidance of the rotating shaft 500 for the first rod 411.

[0166] In this embodiment, in addition to being able to rotate relative to the base 100, the push rod 200 can also expand and contract along its own length direction, and thus has an extended state and a contracted state. When the push rod 200 is in the unfolded state farthest from the base 100, the push rod 200 can be in the extended state (see Figure 1 shown). At this time, the length of the push rod 200 reaches the maximum, and the height of the push rod 200 is suitable for the user to hold and push the golf cart 10. When the push rod 200 is in the folded state closest to the base 100, the push rod 200 can be in the contracted state (see Figure 2 shown). At this time, the length of the push rod 200 reaches the minimum, and the planar space occupied by the push rod 200 itself is the smallest. The push rod 200 can, for example, be completely located within the planar space of the base 100. In this way, the folding volume of the golf cart 10 can be minimized, and the portability of the golf cart 10 is better.

[0167] Figure 10 For Figure 1 the structural schematic diagram of the push rod of the foldable golf cart in Figure 11 For Figure 10 the exploded view of the push rod shown in

[0168] Refer to Figure 10 and Figure 11As shown, as an implementation, the push rod 200 may include a lower rod 210 and an upper rod 220. The bottom end of the lower rod 210 may be movably connected to the base 100. The bottom end of the upper rod 220 penetrates into the lower rod 210 from the top end of the lower rod 210, and the upper rod 220 can move along the lower rod 210. By moving the upper rod 220 along the lower rod 210, the telescopic movement of the push rod 200 is realized, and the push rod 200 can be switched between an extended state and a retracted state.

[0169] When the upper rod 220 moves away from the lower rod 210 to the extreme position, the part of the upper rod 220 extending above the lower rod 210 reaches the maximum, and the part of the upper rod 220 located inside the lower rod 210 reaches the minimum. At this time, the push rod 200 is in the extended state. When the upper rod 220 moves towards the lower rod 210 to the extreme position, the part of the upper rod 220 located inside the lower rod 210 reaches the maximum, and the part of the upper rod 220 exposed above the lower rod 210 reaches the minimum. At this time, the push rod 200 is in the retracted state.

[0170] The push rod 200 may also be provided with a grip portion 221. The grip portion 221 is, for example, located at the top end of the upper rod 220 and extends out on the left and right sides of the upper rod 220. The grip portion 221 is used for the user to hold, so as to facilitate the user to apply force to the push rod 200, thereby pushing the golf cart 10 to move forward.

[0171] Continue to refer to Figure 10 and Figure 11 , a telescopic switch 211 may be provided on the lower rod 210. The telescopic switch 211 is used to control the telescopic state of the push rod 200. When the telescopic switch 211 is in the locked state, the telescopic switch 211 can lock the upper rod 220 to lock the push rod 200 in the extended state. When the telescopic switch 211 is in the open state, the telescopic switch 211 can release the upper rod 220, so that the upper rod 220 can move along the lower rod 210, and the push rod 200 can be switched to the retracted state.

[0172] With such a setting, when the push rod 200 is in the unfolded state away from the base 100, by making the telescopic switch 211 in the locked state, the push rod 200 can be locked in the extended state. At this time, the push rod 200 maintains the maximum length, which is convenient for the user to hold. When the push rod 200 is in the folded state close to the base 100, by making the telescopic switch 211 in the open state, the push rod 200 can be switched to the retracted state. At this time, the length of the push rod 200 reaches the minimum to minimize the folding volume of the golf cart 10.

[0173] Exemplarily, the telescopic switch 211 is, for example, a push switch provided on the outer wall of the lower rod 210. When the push switch is not stressed, the push switch is in close contact with the lower rod 210, and the convex of the push switch extends into the lower rod 210. At this time, the convex of the push switch is engaged in the telescopic locking hole 222 (as shown in Figure 11 ) provided near the bottom end on the upper rod 220. Or, when the upper rod 220 is not provided with the telescopic locking hole 222, the convex of the push switch can also be engaged at the bottom end of the upper rod 220 to lock the push rod 200 in the extended state. When the user presses the push switch, the convex of the push switch protrudes out of the upper rod 220, and the upper rod 220 is released and can move along the lower rod 210, so that the push rod 200 is switched to the shortened state. When the upper rod 220 is pulled upward, under the action of its own elastic force, the push switch can return to the state of locking the upper rod 220.

[0174] In addition, a rotation switch 140 can also be provided on the base 100 (see Figure 3 ), and the rotation switch 140 is used to control the rotation state of the push rod 200. The position of the rotation switch 140 can be set according to the position of the push rod 200 when it is in the unfolded state away from the base 100. When the push rod 200 is in the unfolded state, it can cooperate with the rotation switch 140 to lock or release the push rod 200 through the rotation switch 140.

[0175] When the rotation switch 140 is in the locked state, the push rod 200 can be locked in the posture when it is in the unfolded state. At this time, the push rod 200 can be kept in the unfolded posture to facilitate the user to hold the push rod 200 to push the golf cart 10. When the rotation switch 140 is in the triggered state, the rotation switch 140 can release the push rod 200. At this time, the push rod 200 can rotate from the unfolded state to the folded state to realize the storage of the golf cart 10.

[0176] Among them, the rotation switch 140 can be triggered by the push rod 200. In other words, the rotation switch 140 is switched to the triggered state by the push rod 200. When the push rod 200 is switched from the extended state to the shortened state, the upper rod 220 moves downward into the lower rod 210 to the limit position, and the bottom end of the upper rod 220 is close to the bottom end of the lower rod 210. At this time, the bottom end of the upper rod 220 triggers the rotation switch 140, so that the rotation switch 140 is switched from the locked state to the triggered state, and then the push rod 200 can be folded onto the base 100 in the shortened state.

[0177] Exemplarily, the rotation switch 140 is, for example, an elastic lock rod provided on both the left and right sides of the push rod 200. When the push rod 200 is in the extended state, the elastic lock rod extends into the lower rod 210 under the action of its own elastic force. For example, the elastic lock rod passes through the rotation locking hole 212 (see Figure 10 orFigure 11 as shown, to lock the push rod 200 in the deployed state. When the push rod 200 is switched from the extended state to the retracted state, the upper rod 220 pushes the elastic locking rod to move away from the push rod 200, and the elastic locking rod disengages from the outside of the lower rod 210. For example, the elastic locking rod exits the rotation locking hole 212 formed on the side wall of the lower rod 210, and the push rod 200 is released and can be rotated to the folded state. When the push rod 200 is rotated to the deployed state again and the push rod 200 is switched from the retracted state to the extended state, the upper rod 220 releases the elastic locking rod, and the elastic locking rod can return to the state of locking the lower rod 210 under the action of its own elastic force.

[0178] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0179] It should be noted that the embodiments referred to as "one embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. in the specification may include specific features, structures or characteristics, but not every embodiment necessarily includes the specific feature, structure or characteristic. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when combining a specific feature, structure or characteristic with an embodiment, it is within the knowledge scope of those skilled in the art to implement such a feature, structure or characteristic in combination with other embodiments, whether explicitly or implicitly described.

[0180] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A foldable golf cart, characterized in that, Comprising: A base; A rotating shaft rotatably connected to the base; A push rod, the push rod being drivingly connected to the rotating shaft, and the push rod driving the rotating shaft to rotate; A rear wheel assembly movably connected to both ends of the rotating shaft, the rear wheel assembly telescoping axially along the rotating shaft as the rotating shaft rotates; A front wheel assembly including a first rod, a second rod and a front wheel, one end of the first rod being rotatably connected to the rotating shaft, the other end of the first rod being rotatably connected to one end of the second rod, and the other end of the second rod being connected to the front wheel; the first rod moves as the rotating shaft rotates, driving the front wheel to move towards or away from the rotating shaft.

2. The foldable golf cart according to claim 1, wherein When the push rod is in the deployed state, the first rod and the second rod are in a straight line, and the front wheel assembly is in the deployed state; When the push rod is in the folded state, the angle between the first rod and the second rod reaches the minimum, and the front wheel assembly is in the stowed state.

3. The foldable golf cart according to claim 1, characterized in that, The base is provided with a guide seat, and the second rod passes through the guide seat so that the second rod moves linearly along the axial direction of the second rod.

4. The foldable golf cart according to any one of claims 1 to 3, characterized in that, The first rod is connected to the central position of the rotating shaft in the axial direction.

5. The foldable golf cart according to claim 4, characterized in that, The base is provided with a support member, the rotating shaft passes through the support member, and the support member is located in the central region of the rotating shaft; The support member is provided with a first groove, and the first rod passes through the first groove and is connected to the rotating shaft.

6. The foldable golf cart according to claim 5, wherein, The first groove extends circumferentially along the rotating shaft.

7. The foldable golf cart according to any one of claims 1-3, characterized in that, The rotating shaft is provided with a second groove for avoiding the first rod.

8. The foldable golf cart according to claim 7, wherein, The second groove extends circumferentially along the rotating shaft.

9. The foldable golf cart according to any one of claims 1 to 3, characterized in that, The rear wheel assembly includes a rear wheel shaft and a rear wheel, one end of the rear wheel shaft being sleeved with the rotating shaft, and the rear wheel being connected to the other end of the rear wheel shaft; Wherein, one of the rotating shaft and the rear wheel shaft is provided with a sliding member, and the other is provided with a spiral groove, the spiral groove spirally extending along the rear wheel shaft or the rotating shaft; when the rotating shaft rotates, the sliding member slides along the spiral groove, causing the rear wheel shaft to move axially along the rotating shaft.

10. The foldable golf cart according to claim 9, wherein, A plurality of the spiral grooves are arranged at intervals along the circumferential direction of the rear wheel shaft or the rotating shaft.

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