Locking device of scooter and scooter

Abstract

The scooter comprises a control rod assembly, the control rod assembly comprises a control piece, a first pipe fitting connected with the lower end of the control piece and a second pipe fitting connected with the first pipe fitting in a sleeved mode, and the upper end of the control piece is provided with a containing part; the locking device is used for locking and releasing the joint part of the first pipe fitting and the second pipe fitting, the locking device comprises a driving part, a pull rod and a locking part, the driving part can rotate relative to the first pipe fitting, at least part of the driving part is located in the containing part and abuts against the first pipe fitting, the pull rod penetrates through the first pipe fitting, the upper end of the pull rod is connected with the driving part, and the locking part is located at the lower end of the pull rod. When the driving piece rotates, the pull rod is driven to move upwards or downwards, the locking piece is connected with the lower end of the pull rod, and when the locking piece is driven by the pull rod to move upwards or downwards, the second pipe fitting can be extruded or released in the radial direction of the second pipe fitting. According to the locking device of the scooter, the overall coordination and safety of the scooter are improved.

Description

Technical Field

[0001] This utility model relates to the field of mobility scooter technology, specifically to a locking device for a mobility scooter and the mobility scooter itself. Background Technology

[0002] To reduce the storage size of the mobility scooter, locking devices are installed between the pipes to lock and unlock them. In related technologies, locking devices often use knobs and screws for fastening or quick-release pipe clamps for securing the pipes.

[0003] However, the methods used in related technologies to lock and open the pipe fittings involve a significant amount of exposed material, which affects the overall coordination of the vehicle. Furthermore, the reliability of the locking mechanism is not high, posing a safety risk. Utility Model Content

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention provide a locking device for a mobility scooter that improves the overall coordination and safety of the scooter.

[0005] This utility model embodiment also proposes a mobility scooter.

[0006] The present invention relates to a locking device for a mobility scooter, the mobility scooter comprising a control lever assembly, the control lever assembly comprising a control member, a first tube connected to the lower end of the control member, and a second tube sleeved and connected to the first tube. The upper end of the control member has a receiving portion. The locking device is used to lock and release the joint between the first tube and the second tube. The locking device comprises: a driving member, the driving member being rotatable relative to the first tube, at least a portion of the driving member being located within the receiving portion and abutting against the first tube; a pull rod, the pull rod passing through the first tube and the upper end of the pull rod being connected to the driving member, the driving member rotating to drive the pull rod to move upward or downward; and a locking member, the locking member being connected to the lower end of the pull rod, the locking member moving upward or downward under the drive of the pull rod to squeeze or release the second tube radially.

[0007] The locking device of the mobility scooter according to this utility model embodiment has a pull rod passing through a first tube, with the upper end of the pull rod extending out of the first tube and connected to a driving member. The lower end of the pull rod is connected to a locking member so that the locking member radially compresses or releases the second tube under the drive of the pull rod, thereby realizing the locking and releasing of the joint between the first and second tubes. The operation is simple and the locking force is stable and reliable, which improves the safety of the mobility scooter. Moreover, by passing the pull rod through the first tube and at least a part of the driving member is located in the receiving part, the exposed part of the locking device is reduced, improving the overall coordination of the mobility scooter.

[0008] In some embodiments, the actuating member includes a control pad, the control pad including a first control pad, a second control pad, and a connecting portion located at the upper end of the first tube, the receiving portion being formed on the connecting portion and located between the first control pad and the second control pad, and the driving member abutting against the connecting portion.

[0009] In some embodiments, the connection includes a connecting tube, one end of which is connected to the upper end of the first pipe fitting, and the connecting tube is connected to the first control pad and the second control pad.

[0010] In some embodiments, the outer peripheral surface of the connecting portion is provided with a recess, the recess is located between the first control pad and the second control pad, and a portion of the driving member is located within the recess.

[0011] In some embodiments, the connecting tube includes a first bend located between one end of the connecting tube and the other end of the connecting tube, and a recess is provided on the outer peripheral surface of the connecting tube, the recess being located between the first control pad and the second control pad, the recess being disposed on the upper surface of the first bend, and a portion of the driving member being located within the recess.

[0012] In some embodiments, the driving member includes an eccentric wheel and a wrench, the wrench being connected to the outer peripheral surface of the eccentric wheel, the eccentric wheel abutting against the connecting pipe, and both the eccentric wheel and the wrench being located between the first control pad and the second control pad; the locking device further includes a rotating shaft, the eccentric wheel having an eccentric hole, the rotating shaft passing through the eccentric hole, and the eccentric wheel being rotatable about the axis of the rotating shaft.

[0013] In some embodiments, the end of the wrench away from the eccentric wheel has a folded portion.

[0014] In some embodiments, the locking device of the mobility scooter further includes a gasket, one end of which abuts against the connecting pipe, and the other end of which abuts tangentially against the outer peripheral surface of the eccentric wheel.

[0015] In some embodiments, the locking device of the mobility scooter further includes a fastener, the rotating shaft has a through hole extending radially therethrough, the upper end of the pull rod passes through the eccentric wheel and the through hole and is connected to the fastener, and the fastener is located within the receiving portion.

[0016] In some embodiments, the outer peripheral surface of the eccentric wheel is provided with a groove, and at least a portion of the fastener is located within the groove.

[0017] In some embodiments, the locking member includes a first wedge and a second wedge. The first wedge is connected to the lower end of the pull rod. Both the first wedge and the second wedge include inclined surfaces. The inclined surfaces of the first wedge and the second wedge cooperate with each other. When the pull rod drives the first wedge to move upward, one of the first wedge and the second wedge abuts against the inner wall of the first pipe and the other abuts against the inner wall of the second pipe, so as to lock the joint between the first pipe and the second pipe.

[0018] In some embodiments, the locking member includes at least one third wedge and a mating portion. The mating portion is located inside the first pipe and connected to the lower end of the pull rod. Both the mating portion and the third wedge include inclined surfaces, and the inclined surfaces of the mating portion and the third wedge engage with each other. One of the joints of the first pipe and the second pipe includes an inner pipe section and the other includes an outer pipe section, with the outer pipe section sleeved outside the inner pipe section. The inner pipe section is provided with a limiting groove penetrating the corresponding pipe wall. When the pull rod pulls the mating portion upward, a portion of the third wedge extends through the limiting groove and abuts against the inner circumferential surface of the corresponding pipe of the outer pipe section to lock the joint of the first pipe and the second pipe.

[0019] In some embodiments, the locking member further includes a limiting block disposed at the upper end of the third wedge, the limiting block being located within the inner pipe section and abutting against the inner wall surface of the corresponding pipe fitting, for limiting the radial displacement of the third wedge in the corresponding pipe fitting of the inner pipe section; and / or, the mating part includes a plurality of inclined surfaces, the plurality of inclined surfaces of the mating part being arranged circumferentially at intervals on the pull rod, the third wedge being a plurality of such third wedges, and the plurality of third wedges being configured to mate with the plurality of mating parts one by one.

[0020] The present invention relates to a locking device for a mobility scooter, the mobility scooter including a control rod assembly, the control rod assembly including a first tube and a second tube sleeved and connected to the first tube, the outer peripheral surface of the first tube having a receiving portion, the locking device being used to lock and release the joint of the first tube and the second tube, the locking device including: a driving member, the driving member being rotatable relative to the first tube, at least a portion of the driving member being located within the receiving portion and abutting against the first tube; a pull rod, the pull rod passing through the first tube and the upper end of the pull rod being connected to the driving member, the driving member rotating to drive the pull rod to move upward or downward; and a locking member, the locking member being connected to the lower end of the pull rod, the locking member moving upward or downward under the drive of the pull rod to squeeze or release the second tube radially.

[0021] The locking device of the mobility scooter according to this utility model embodiment has a pull rod passing through a first tube, with the upper end of the pull rod extending out of the first tube and connected to a driving member. The lower end of the pull rod is connected to a locking member so that the locking member radially squeezes or releases the second tube under the drive of the pull rod, thereby realizing the locking and releasing of the joint between the first and second tubes. The operation is simple and the locking force is stable and reliable, which improves the safety of the mobility scooter. Moreover, by passing the pull rod through the first tube and at least part of the driving member is located in the receiving part of the first tube, the exposed part of the locking device is reduced, improving the overall coordination of the mobility scooter.

[0022] In some embodiments, the control lever assembly further includes an actuation element, the actuation element including a handle connected to the upper end of the first tube.

[0023] In some embodiments, the first pipe fitting includes a bend located between the upper end and the lower end of the first pipe fitting and above the second pipe fitting, and the receiving portion is disposed on the upper surface of the bend.

[0024] In some embodiments, the drive includes an eccentric wheel and a wrench, the wrench being connected to the outer peripheral surface of the eccentric wheel, the eccentric wheel abutting against the first pipe, and at least a portion of the eccentric wheel being located in the receiving portion.

[0025] In some embodiments, the end of the wrench away from the eccentric wheel has a folded portion.

[0026] In some embodiments, the locking device of the mobility scooter further includes a gasket, one end of which abuts against the first tube and the other end of which abuts tangentially against the outer peripheral surface of the eccentric wheel.

[0027] In some embodiments, the locking device of the mobility scooter further includes a rotating shaft, the eccentric wheel has an eccentric hole, the rotating shaft passes through the eccentric hole, and the eccentric wheel is rotatable about the axis of the rotating shaft.

[0028] In some embodiments, the locking device of the mobility scooter further includes a fastener, the rotating shaft has a through hole extending radially therethrough, and the upper end of the pull rod passes through the eccentric wheel and the through hole and is connected to the fastener.

[0029] In some embodiments, the outer peripheral surface of the eccentric wheel is provided with a groove, and at least a portion of the fastener is located within the groove.

[0030] In some embodiments, the locking member includes a first wedge and a second wedge. The first wedge is connected to the lower end of the pull rod. Both the first wedge and the second wedge include inclined surfaces. The inclined surfaces of the first wedge and the second wedge cooperate with each other. When the pull rod drives the first wedge to move upward, one of the first wedge and the second wedge abuts against the inner wall of the first pipe and the other abuts against the inner wall of the second pipe, so as to lock the joint between the first pipe and the second pipe.

[0031] In some embodiments, the locking member includes at least one third wedge and a mating portion. The mating portion is located inside the first pipe and connected to the lower end of the pull rod. Both the mating portion and the third wedge include inclined surfaces, and the inclined surfaces of the mating portion and the third wedge engage with each other. One of the joints of the first pipe and the second pipe includes an inner pipe section and the other includes an outer pipe section, with the outer pipe section sleeved outside the inner pipe section. The inner pipe section is provided with a limiting groove penetrating the corresponding pipe wall. When the pull rod pulls the mating portion upward, a portion of the third wedge extends through the limiting groove and abuts against the inner circumferential surface of the corresponding pipe of the outer pipe section to lock the joint of the first pipe and the second pipe.

[0032] In some embodiments, the locking member further includes a limiting block disposed at the upper end of the third wedge, the limiting block being located within the inner pipe section and abutting against the inner wall surface of the corresponding pipe fitting, for limiting the radial displacement of the third wedge in the corresponding pipe fitting of the inner pipe section; and / or, the mating part includes a plurality of inclined surfaces, the plurality of inclined surfaces of the mating part being arranged circumferentially at intervals on the pull rod, the third wedge being a plurality of such third wedges, and the plurality of third wedges being configured to mate with the plurality of mating parts one by one.

[0033] The mobility scooter of this utility model embodiment includes the locking device of the mobility scooter described in the above embodiment.

[0034] The mobility scooter of this utility model, by including the locking device of the above embodiment, improves the overall coordination and safety of the mobility scooter.

[0035] In some embodiments, the mobility scooter is a self-balancing scooter, and the control lever assembly of the mobility scooter is the leg control lever of the self-balancing scooter; or, the mobility scooter is a scooter, and the control lever assembly of the mobility scooter is the handlebar of the scooter.

[0036] In some embodiments, the locking device is used to telescopically adjust the control lever assembly of the mobility scooter. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the locking device of the mobility scooter according to an embodiment of the present invention.

[0038] Figure 2 This is an exploded schematic diagram of the locking device of the mobility scooter according to an embodiment of the present invention.

[0039] Figure 3 This is a cross-sectional view of the locking device of the mobility scooter according to an embodiment of the present invention.

[0040] Figure 4 yes Figure 3 Enlarged diagram of point A in the middle.

[0041] Figure 5 yes Figure 3 Enlarged diagram of point B in the middle.

[0042] Figure 6 This is a schematic diagram of the locking device of a mobility scooter according to another embodiment of the present invention.

[0043] Figure 7 This is a cross-sectional view of the locking device of a mobility scooter according to another embodiment of the present invention.

[0044] Figure 8 This is a schematic diagram of the mating part of this utility model.

[0045] Figure 9 This is a schematic diagram of the limiting groove of this utility model.

[0046] Figure label:

[0047] The control lever assembly 100 includes an operating element 11, a receiving portion 111, a control pad 112, a first control pad 1121, a second control pad 1122, a connecting portion 1123, a recessed portion 11231, a first bent portion 11232, a connecting tube 11233, and a handle 113.

[0048] First fitting 12, limiting groove 121, bending part 122

[0049] Second fitting 13,

[0050] Joint 14, inner pipe section 141, outer pipe section 142,

[0051] Locking device 20,

[0052] Drive component 1, eccentric wheel 101, eccentric hole 102, groove 103, wrench 104, folding part 105

[0053] Pull rod 2, stop part 21,

[0054] Locking component 3, first wedge 31, second wedge 32, third wedge 33, protrusion 331, mating part 34, limiting block 35.

[0055] 4. Gasket, 5. Shaft, 51. Through hole, 6. Fastener. Detailed Implementation

[0056] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0057] The following is in conjunction with the appendix Figures 1-9 The locking device 20 of the mobility scooter in this embodiment will be described in detail.

[0058] The locking device 20 of the mobility scooter according to this utility model embodiment includes a control lever assembly 100, which includes a control member 11, a first tube 12 connected to the lower end of the control member 11, and a second tube 13 sleeved and connected to the first tube 12. The upper end of the control member 11 has a receiving portion 111. The locking device 20 is used to lock and release the joint portion 14 of the first tube 12 and the second tube 13. The locking device 20 includes a driving member 1, a pull rod 2, and a locking member 3.

[0059] The driving member 1 is rotatable relative to the first tube 12, and at least a portion of the driving member 1 is located within the receiving portion 111 and abuts against the first tube 12. A pull rod 2 passes through the first tube 12, and its upper end is connected to the driving member 1. When the driving member 1 rotates, it causes the pull rod 2 to move upward or downward. A locking member 3 is connected to the lower end of the pull rod 2. When the locking member 3 moves upward or downward under the influence of the pull rod 2, it can compress or release the second tube 13 radially.

[0060] The locking device 20 of the mobility scooter of this utility model embodiment has a pull rod 2 passing through the first pipe 12, with the upper end of the pull rod 2 extending out of the first pipe 12 and connected to the drive member 1. The lower end of the pull rod 2 is connected to the locking member 3 so that the locking member 3 can radially squeeze or release the second pipe 13 under the drive of the pull rod 2, thereby realizing the locking and releasing of the joint 14 of the first pipe 12 and the second pipe 13. The operation is simple and the locking force is stable and reliable, which improves the safety of the mobility scooter. Moreover, by passing the pull rod 2 through the first pipe 12 and at least part of the drive member 1 being located in the receiving part 111, the exposed part of the locking device 20 is reduced, improving the overall coordination of the mobility scooter.

[0061] Specifically, such as Figures 1-5As shown, the upper end of the first pipe fitting 12 is connected to the operating member 11, and the lower end of the first pipe fitting 12 extends into the second pipe fitting 13. The driving member 1 is located above the first pipe fitting 12 and abuts against the first pipe fitting 12. The driving member 1 is connected to the upper end of the pull rod 2, and the lower end of the pull rod 2 is connected to the locking member 3. The driving member 1 rotates relative to the first pipe fitting 12 to drive the pull rod 2 to move up or down. The upward or downward movement of the pull rod 2 drives the locking member 3 to move up or down.

[0062] When the driving component 1 rotates and drives the pull rod 2 upward, the locking component 3 moves upward and presses against the inner circumferential surface of the second tube 13 radially. That is, the outer circumferential surface of the locking component 3 abuts against the inner circumferential surface of the second tube 13. The upward movement of the locking component 3 locks the joint 14 between the second tube 13 and the first tube 12, thus fixing the first tube 12. When the driving component 1 rotates and drives the pull rod 2 downward, the locking component 3 moves downward and separates from the inner circumferential surface of the second tube 13, releasing the joint 14 between the second tube 13 and the first tube 12. This separates the second tube 13 from the first tube 12, facilitating the extension, retraction, and rotation of the first tube 12, thereby reducing the storage size of the mobility scooter.

[0063] In some embodiments, the operating member 11 includes a control pad 112, the control pad 112 includes a first control pad 1121, a second control pad 1122 and a connecting portion 1123 located at the upper end of the first tube 12, the receiving portion 111 is formed on the connecting portion 1123 and located between the first control pad 1121 and the second control pad 1122, and the driving member 1 abuts against the connecting portion 1123.

[0064] Specifically, such as Figure 1 As shown, the first control pad 1121 and the second control pad 1122 are arranged at a distance in the radial direction of the first pipe fitting 12. The connecting portion 1123 is located between the first control pad 1121 and the second control pad 1122 and is connected to the first control pad 1121 and the second control pad 1122 respectively. The upper end of the connecting portion 1123 is lower than the upper end of the first control pad 1121 and the upper end of the second control pad 1122. The receiving portion 111 is formed between the first control pad 1121 and the second control pad 1122 and is located above the connecting portion 1123.

[0065] The upper end of the first tube 12 is connected to the connecting part 1123. The pull rod 2 passes through the connecting part 1123 and its upper end extends out of the connecting part 1123 and is connected to the driving member 1. The driving member 1 abuts against the connecting part 1123. By placing the driving member 1 in the receiving part 111 between the first control pad 1121 and the second control pad 1122, the first control pad 1121 and the second control pad 1122 can partially cover the locking device 20, further reducing the exposed part of the locking device 20 and improving the overall coordination of the mobility scooter.

[0066] In some embodiments, such as Figure 2 As shown, the connecting part 1123 includes a connecting pipe 11233. One end of the connecting pipe 11233 is connected to the upper end of the first pipe fitting 12, and the connecting pipe 11233 is connected to the first control pad 1121 and the second control pad 1122. The connecting pipe 11233 facilitates the connection between the first control pad 1121 and the second control pad 1122, and also facilitates the upper end of the pull rod 2 to pass through the connecting pipe 11233 and extend out of the connecting pipe 11233 to connect with the drive component 1.

[0067] In some embodiments, the outer peripheral surface of the connecting portion 1123 is provided with a recess 11231, the recess 11231 is located between the first control pad 1121 and the second control pad 1122, and a portion of the driving member 1 is located in the recess 11231.

[0068] Specifically, such as Figures 3-4 As shown, the upper surface of the connecting part 1123 is provided with a recessed part 11231, and a part of the driving member 1 is located in the recessed part 11231. The bottom surface of the recessed part 11231 is adapted to the outer peripheral surface of the driving member 1, which facilitates the improvement of installation accuracy while reducing the exposed part of the driving member 1, and further improves the overall coordination of the mobility vehicle.

[0069] In some embodiments, such as Figure 2 As shown, the connecting pipe 11233 includes a first bend 11232, which is located between one end of the connecting pipe 11233 and the other end of the connecting pipe 11233. The outer peripheral surface of the connecting pipe 11233 is provided with a recess 11231, which is located between the first control pad 1121 and the second control pad 1122. The recess 11231 is located on the upper surface of the first bend 11232, and a part of the driving member 1 is located in the recess 11231. By providing a recessed portion 11231 on the upper surface of the first bending portion 11232, and the recessed portion 11231 being located between the first control pad 1121 and the second control pad 1122, the bottom surface of the recessed portion 11231 is adapted to the outer peripheral surface of the drive member 1. On the one hand, it is convenient to install the drive member 1 in the recessed portion 11231. On the other hand, the first control pad 1121 and the second control pad 1122 at least partially cover the drive member 1, further reducing the exposed portion of the drive member 1.

[0070] In some embodiments, the drive member 1 includes an eccentric wheel 101 and a wrench 104. The wrench 104 is connected to the outer peripheral surface of the eccentric wheel 101. The eccentric wheel 101 abuts against the connecting pipe 11233. The eccentric wheel 101 and the wrench 104 are both located between the first control pad 1121 and the second control pad 1122.

[0071] Specifically, such as Figures 3-4As shown, the eccentric wheel 101 is located above and abuts against the connecting pipe 11233. The eccentric wheel 101 is connected to the upper end of the pull rod 2, and the outer circumferential surface of the eccentric wheel 101 abuts against the bottom surface of the recess 11231 of the connecting pipe 11233. The eccentric wheel 101 is rotated by the wrench 104, so that the rotation of the eccentric wheel 101 relative to the first pipe 12 and the connecting pipe 11233 can drive the pull rod 2 to move up or down. The upward or downward movement of the pull rod 2 will drive the locking member 3 to move up or down, which improves the ease of operation. By placing both the eccentric wheel 101 and the wrench 104 between the first control pad 1121 and the second control pad 1122, the exposed part of the locking device 20 is further reduced.

[0072] The outer circumferential surface of the eccentric wheel 101 abuts against the connecting pipe 11233. The radial dimensions from the rotation axis of the eccentric wheel 101 to its outer circumferential surface are different. When the eccentric wheel 101 rotates relative to the first pipe fitting 12 and the connecting pipe 11233, the position of the pull rod 2 in the vertical direction is higher when it abuts against the connecting pipe 11233 at the position with the larger radial dimension compared to when it abuts against the connecting pipe 11233 at the position with the smaller radial dimension. In other words, when the eccentric wheel 101 rotates from the position with the larger radial dimension to the position with the smaller radial dimension, the eccentric wheel 101 drives the pull rod 2 to move downwards; conversely, when the eccentric wheel 101 rotates from the position with the smaller radial dimension to the position with the larger radial dimension, the eccentric wheel 101 drives the pull rod 2 to move upwards.

[0073] In some embodiments, the locking device 20 further includes a rotating shaft 5, an eccentric wheel 101 having an eccentric hole 102, the rotating shaft 5 passing through the eccentric hole 102, and the eccentric wheel 101 being rotatable about the axis of the rotating shaft 5.

[0074] Specifically, such as Figure 2 As shown, the axis of the rotating shaft 5 is orthogonal to the vertical direction. The pull rod 2 is connected to the rotating shaft 5. By passing the rotating shaft 5 through the eccentric hole 102, the rotating shaft 5 rises or falls when the eccentric wheel 101 rotates around the rotating shaft 5, thereby driving the pull rod 2 to move upward or downward. The upward movement of the pull rod 2 drives the locking member 3 to move upward and lock the joint 14 of the first pipe 12 and the second pipe 13.

[0075] In some embodiments, such as Figure 4 As shown, the end of the wrench 104 away from the eccentric wheel 101 has a folded portion 105. The wrench 104 fits against the connecting pipe 11233. The folded portion 105 increases the contact area between the operator and the wrench 104, prevents the wrench 104 from slipping, and improves the stability of the wrench 104 in the process of driving the eccentric wheel 101 to rotate.

[0076] In some embodiments, the locking device 20 of the mobility scooter further includes a pad 4, one end of which abuts against the connecting pipe 11233, and the other end of which abuts against the outer peripheral surface of the eccentric wheel 101.

[0077] Specifically, such as Figure 2 and Figure 4 As shown, the upper end of the pull rod 2 passes through the gasket 4 and the rotating shaft 5 and is connected to the eccentric wheel 101. By setting the gasket 4, direct contact between the connecting pipe 11233 and the eccentric wheel 101 is avoided, thereby reducing the friction and wear between the eccentric wheel 101 and the connecting pipe 11233 and improving the service life of the connecting pipe 11233 and the eccentric wheel 101.

[0078] Optionally, the gasket 4 is arc-shaped, and the arc-shaped gasket 4 is adapted to the outer peripheral surface of the eccentric wheel 101. The bottom surface of the recess 11231 is adapted to the arc shape of the gasket 4, which facilitates the assembly of the gasket 4.

[0079] In some embodiments, the locking device 20 of the mobility scooter further includes a fastener 6, the rotating shaft 5 is provided with a through hole 51 extending radially therethrough, the upper end of the pull rod 2 passes through the eccentric wheel 101 and the through hole 51 and is connected to the fastener 6, and the fastener 6 is located in the receiving portion 111.

[0080] Specifically, such as Figure 2 and Figure 4 As shown, the rotating shaft 5 has a through hole 51 that runs through the rotating shaft 5 in the vertical direction. The upper end of the pull rod 2 passes through the through hole 51 and is connected to the fastener 6. Since the rotating shaft 5 passes through the eccentric wheel 101, the pull rod 2 is connected to the eccentric wheel 101.

[0081] Optionally, the fastener 6 is threadedly connected to the pull rod 2. Turning the fastener 6 clockwise increases the locking force of the locking device 20; turning it counterclockwise decreases the locking force. The amount of tightening of the fastener 6 controls the magnitude of the locking force of the locking device 20, achieving rapid adjustment of the locking force. It can be understood that the locking device 20 first releases the joint 14 of the first pipe fitting 12 and the second pipe fitting 13, then adjusts the locking force of the locking device 20, and then tightens the joint 14 of the first pipe fitting 12 and the second pipe fitting 13. This process is repeated several times until the locking force is appropriate, ensuring the locking force of the locking device 20 and improving the stability and reliability of locking the first pipe fitting 12 and the second pipe fitting 13.

[0082] In some embodiments, such as Figure 1 As shown, the outer peripheral surface of the eccentric wheel 101 is provided with a groove 103, and at least a portion of the fastener 6 is located within the groove 103. By hiding at least a portion of the fastener 6 within the groove 103, the exposed portion of the locking device 20 is further reduced, improving the overall coordination of the locking device 20, and the overall structure of the locking device 20 is more compact.

[0083] In some embodiments, the locking member 3 includes a first wedge 31 and a second wedge 32. The first wedge 31 is connected to the lower end of the pull rod 2. Both the first wedge 31 and the second wedge 32 include inclined surfaces. The inclined surfaces of the first wedge 31 and the second wedge 32 cooperate with each other. When the pull rod 2 drives the first wedge 31 to move upward, one of the first wedge 31 and the second wedge 32 abuts against the inner wall of the first pipe 12 and the other abuts against the inner wall of the second pipe 13 to lock the joint 14 of the first pipe 12 and the second pipe 13.

[0084] Specifically, such as Figure 2 and Figure 5 As shown, the second wedge 32 and the first wedge 31 are arranged sequentially in the vertical direction. The pull rod 2 passes through the second wedge 32 and the first wedge 31 in sequence and is connected to the first wedge 31. The upper end of the second wedge 32 extends into the first pipe fitting 12, and the lower end of the second wedge 32 is located outside the first pipe fitting 12. The lower end surface of the second wedge 32 is a slope, and the upper end surface of the first wedge 31 is a slope. The slope of the first wedge 31 and the slope of the second wedge 32 cooperate with each other.

[0085] When the eccentric wheel 101 rotates, it drives the pull rod 2 to move up or down. Since the first wedge block 31 is connected to the lower end of the pull rod 2, the upward or downward movement of the pull rod 2 will synchronously drive the first wedge block 31 to move up or down.

[0086] When the pull rod 2 drives the first wedge 31 to move upward, the upward movement of the first wedge 31 drives the second wedge 32 to move upward so that the second wedge 32 abuts against the inner wall of the first pipe 12. Due to the inclined surface, when the first wedge 31 can no longer move upward, the upward movement of the first wedge 31 is transformed into an outward tension displacement of the first wedge 31, causing the first wedge 31 to move outward and squeeze against the inner circumferential surface of the second pipe 13, thereby locking the joint 14 of the first pipe 12 and the second pipe 13.

[0087] When the lever 2 moves the first wedge 31 downwards, the outer circumferential surface of the first wedge 31 separates from the inner circumferential surface of the second tube 13, and the first tube 12 and the second tube 13 separate, facilitating the rotation and vertical movement of the first tube 12. By abutting or separating the first wedge 31 from the inner circumferential surface of the second tube 13, the locking and releasing of the joint 14 between the first tube 12 and the second tube 13 is achieved. The locking operation is simple and the locking force is reliable and stable. Because the first wedge 31 abuts against the inner circumferential surface of the second tube 13, the first tube 12 is prevented from shaking, improving the user's riding experience.

[0088] It is understandable that the displacement of the first wedge 31 moving outward is not large. Since the pull rod 2 is relatively long, the lower end of the pull rod 2 has the displacement to move outward. The upward movement of the pull rod 2 can drive the lower end of the pull rod 2 and the first wedge 31 to move outward, while also preventing the pull rod 2 from shaking.

[0089] Optionally, the lower end of the pull rod 2 has a stop 21, which abuts against the lower end of the first wedge 31. This facilitates the pull rod 2 to move the first wedge 31 and prevents the pull rod 2 from disengaging from the first wedge 31.

[0090] In some embodiments, the locking member 3 includes at least one third wedge 33 and a mating part 34. The mating part 34 is located inside the first pipe fitting 12 and connected to the lower end of the pull rod 2. Both the mating part 34 and the third wedge 33 include inclined surfaces, and the inclined surfaces of the mating part 34 and the third wedge 33 cooperate with each other. One of the joint portions 14 of the first pipe fitting 12 and the second pipe fitting 13 includes an inner pipe section 141 and the other includes an outer pipe section 142. The outer pipe section 142 is sleeved outside the inner pipe section 141. The inner pipe section 141 is provided with a limiting groove 121 that penetrates the corresponding pipe wall. When the pull rod 2 pulls the mating part 34 to move upward, a portion of the third wedge 33 extends through the limiting groove 121 and protrudes from the inner pipe section 141 to abut against the inner circumferential surface of the corresponding pipe fitting of the outer pipe section 142, so as to lock the joint portion 14 of the first pipe fitting 12 and the second pipe fitting 13.

[0091] In the joint 14 of the first pipe fitting 12 and the second pipe fitting 13, one includes an inner pipe section 141 and the other includes an outer pipe section 142. Alternatively, the first pipe fitting 12 may include the inner pipe section 141 and the second pipe fitting 13 may include the outer pipe section 142, or the first pipe fitting 12 may include the outer pipe section 142 and the second pipe fitting 13 may include the inner pipe section 141. For ease of description, this embodiment uses the example of the first pipe fitting 12 including the inner pipe section 141 and the second pipe fitting 13 including the outer pipe section 142, with the outer pipe section 142 fitted outside the inner pipe section 141.

[0092] Specifically, such as Figure 8 and Figure 9 As shown, the mating part 34 is provided at the lower end of the pull rod 2 and surrounds the pull rod 2. The outer peripheral surface of the mating part 34 is an inclined surface. The outer side of the third wedge 33 is mated in the limiting groove 121 of the inner pipe section 141 of the first pipe fitting 12, and the inner peripheral surface of the third wedge 33 is an inclined surface.

[0093] When the pull rod 2 moves upward, it drives the mating part 34 to move upward. When the mating part 34 moves upward, it drives the third wedge block 33 to move upward. Due to the mutual cooperation between the inclined surface of the mating part 34 and the third wedge block 33, the third wedge block 33 moves outward so that the outer peripheral surface of the third wedge block 33 abuts against the inner peripheral surface of the outer pipe section 142 of the second pipe fitting 13, thereby locking the joint 14 of the first pipe fitting 12 and the second pipe fitting 13.

[0094] In some embodiments, such as Figure 8 As shown, the locking component 3 also includes a limiting block 35, which is located at the upper end of the third wedge 33. The limiting block 35 is situated within the inner pipe section 141 and can abut against the inner wall surface of the corresponding pipe fitting, thereby limiting the radial displacement of the third wedge 33 within the corresponding pipe fitting of the inner pipe section 141. By providing a limiting block 35 at the upper end of the third wedge 33, the third wedge 33 is prevented from falling out of the limiting groove 121 during assembly, thus improving assembly efficiency.

[0095] In some embodiments, such as Figure 8 As shown, the mating part 34 includes multiple inclined surfaces, which are arranged at intervals around the tie rod 2. Multiple third wedges 33 are also present, each engaging with one of the mating parts 34. By using the multiple inclined surfaces and the multiple third wedges 33 of the mating part 34, the contact area between the third wedges 33 and the inner circumferential surface of the second pipe fitting 13 is increased, thereby improving the reliability of the locking device 20.

[0096] Optionally, the outer peripheral surface of the third wedge 33 is provided with a protrusion 331. By providing a protrusion 331 on the outer peripheral surface of the third wedge 33, the friction between the third wedge 33 and the inner peripheral surface of the second pipe fitting 13 is increased, further improving the locking reliability.

[0097] The mobility scooter of this utility model embodiment includes the locking device 20 of the mobility scooter of the above embodiment.

[0098] The mobility scooter of this utility model, by including the locking device 20 of the above embodiment, improves the overall coordination and safety of the mobility scooter.

[0099] In some embodiments, the mobility scooter is a self-balancing scooter, and the control lever assembly of the mobility scooter is the leg control lever of the self-balancing scooter.

[0100] In some embodiments, the locking device 20 is used in the control lever assembly of the telescopic adjustable mobility scooter.

[0101] A locking device 20 is installed on the control rod assembly 100 of the self-balancing scooter. The control rod assembly 100 includes an operating member 11, a first tube 12, and a second tube 13. When the locking device 20 releases the joint 14 between the first tube 12 and the second tube 13, the first tube 12 can move vertically relative to the second tube 13 to adjust the length of the control rod assembly 100. By locking and releasing the joint 14 between the first tube 12 and the second tube 13 through the locking device 20, the extension and retraction of the control rod assembly 100 of the self-balancing scooter is realized, thereby reducing the storage size of the self-balancing scooter. Moreover, at least a portion of the locking device 20 can be hidden between the first control pad 1121 and the second control pad 1122, reducing the exposed portion of the locking device 20 and improving the overall coordination of the self-balancing scooter.

[0102] The present invention relates to a locking device 20 for a mobility scooter. The mobility scooter includes a control rod assembly 100, which includes a first tube 12 and a second tube 13 sleeved and connected to the first tube 12. The outer peripheral surface of the first tube 12 has a receiving portion 111. The locking device 20 is used to lock and release the joint portion 14 of the first tube 12 and the second tube 13. The locking device 20 includes a driving member 1, a pull rod 2, and a locking member 3.

[0103] The driving member 1 is rotatable relative to the first tube 12, and at least a portion of the driving member 1 is located within the receiving portion 111 and abuts against the first tube 12. A pull rod 2 passes through the first tube 12, and its upper end is connected to the driving member 1. When the driving member 1 rotates, it causes the pull rod 2 to move upward or downward. A locking member 3 is connected to the lower end of the pull rod 2. When the locking member 3 moves upward or downward under the influence of the pull rod 2, it can compress or release the second tube 13 radially.

[0104] The locking device 20 of the mobility scooter of this utility model embodiment has a pull rod 2 passing through the first pipe 12, with the upper end of the pull rod 2 extending out of the first pipe 12 and connected to the drive member 1. The lower end of the pull rod 2 is connected to the locking member 3 so that the locking member 3 can radially squeeze or release the second pipe 13 under the drive of the pull rod 2, thereby realizing the locking and releasing of the joint 14 of the first pipe 12 and the second pipe 13. The operation is simple and the locking force is stable and reliable, which improves the safety of the mobility scooter. Moreover, by passing the pull rod 2 through the first pipe 12 and at least part of the drive member 1 being located in the receiving part 111 of the first pipe 12, the exposed part of the locking device 20 is reduced, improving the overall coordination of the mobility scooter.

[0105] Specifically, such as Figures 6-7As shown, the lower end of the first pipe 12 extends into the second pipe 13. The driving member 1 is located above the first pipe 12 and abuts against the first pipe 12. The driving member 1 is connected to the upper end of the pull rod 2, and the lower end of the pull rod 2 is connected to the locking member 3. The driving member 1 rotates relative to the first pipe 12 to drive the pull rod 2 to move up or down. The upward or downward movement of the pull rod 2 drives the locking member 3 to move up or down.

[0106] When the driving component 1 rotates and drives the pull rod 2 upward, the locking component 3 moves upward and presses against the inner circumferential surface of the second tube 13 radially. That is, the outer circumferential surface of the locking component 3 abuts against the inner circumferential surface of the second tube 13. The upward movement of the locking component 3 locks the joint 14 between the second tube 13 and the first tube 12, thus fixing the first tube 12. When the driving component 1 rotates and drives the pull rod 2 downward, the locking component 3 moves downward and separates from the inner circumferential surface of the second tube 13, releasing the joint 14 between the second tube 13 and the first tube 12. This separates the second tube 13 from the first tube 12, facilitating the extension, retraction, and rotation of the first tube 12, thereby reducing the storage size of the mobility scooter.

[0107] In some embodiments, such as Figure 6 As shown, the control lever assembly 100 also includes an operating element 11, which includes a handle 113 connected to the upper end of the first tube 12. When the locking device 20 releases the joint 14 between the first tube 12 and the second tube 13, the first tube 12 is rotated relative to the second tube 13 by rotating the handle 113, thereby reducing the storage size of the mobility scooter.

[0108] In some embodiments, such as Figures 6-7 As shown, the first tube 12 includes a bend 122, which is located between the upper and lower ends of the first tube 12 and above the second tube 13. A receiving portion 111 is provided on the upper surface of the bend 122. The bend 122 is provided so that the handlebars are positioned in front of the first tube 12, improving riding comfort. On the other hand, by providing the receiving portion 111 in the bend 122, the connection between the drive component 1 and the first tube 12 is facilitated while reducing the exposed portion of the drive component 1, thus improving the overall coordination of the scooter.

[0109] In some embodiments, the drive member 1 includes an eccentric wheel 101 and a wrench 104, the wrench 104 being connected to the outer peripheral surface of the eccentric wheel 101, the eccentric wheel 101 abutting against the first pipe 12, and at least a portion of the eccentric wheel 101 being located in the receiving portion 111.

[0110] Specifically, such as Figures 6-7As shown, the eccentric wheel 101 is located above and abuts against the first pipe fitting 12. The eccentric wheel 101 is connected to the upper end of the pull rod 2, and the outer circumferential surface of the eccentric wheel 101 abuts against the bottom surface of the receiving portion 111 of the first pipe fitting 12. By driving the eccentric wheel 101 to rotate through the wrench 104, the rotation of the eccentric wheel 101 relative to the first pipe fitting 12 can drive the pull rod 2 to move up or down. The upward or downward movement of the pull rod 2 will drive the locking member 3 to move up or down, improving the ease of operation. By placing at least a portion of the eccentric wheel 101 inside the receiving portion 111, the exposed portion of the locking device 20 is further reduced.

[0111] The outer circumferential surface of the eccentric wheel 101 abuts against the first pipe fitting 12. The radial dimensions of the rotation axis of the eccentric wheel 101 to its outer circumferential surface are different. When the eccentric wheel 101 rotates relative to the first pipe fitting 12, the position of the pull rod 2 in the vertical direction is higher when the eccentric wheel 101 abuts against the first pipe fitting 12 compared to when the eccentric wheel 101 abuts against the first pipe fitting 12 at the position with the larger radial dimension. In other words, when the eccentric wheel 101 rotates from the position with the larger radial dimension to the position with the smaller radial dimension, the eccentric wheel 101 drives the pull rod 2 to move downwards; conversely, when the eccentric wheel 101 rotates from the position with the smaller radial dimension to the position with the larger radial dimension, the eccentric wheel 101 drives the pull rod 2 to move upwards.

[0112] In some embodiments, such as Figures 6-7 As shown, the end of the wrench 104 away from the eccentric wheel 101 has a folded portion 105. The wrench 104 is attached to the first pipe fitting 12. The folded portion 105 increases the contact area between the operator and the wrench 104, prevents the wrench 104 from slipping, and improves the stability of the wrench 104 in the process of driving the eccentric wheel 101 to rotate.

[0113] In some embodiments, the locking device 20 of the mobility scooter further includes a gasket 4, one end of which abuts against the first tube 12, and the other end of which abuts against the outer peripheral surface of the eccentric wheel 101.

[0114] Specifically, such as Figure 7 As shown, the upper end of the pull rod 2 passes through the washer 4 and is connected to the eccentric wheel 101. By setting the washer 4, direct contact between the first pipe 12 and the eccentric wheel 101 is avoided, reducing the friction and wear between the eccentric wheel 101 and the first pipe 12, and improving the service life of the first pipe 12 and the eccentric wheel 101.

[0115] Optionally, the gasket 4 is arc-shaped, and the arc-shaped gasket 4 is adapted to the outer peripheral surface of the eccentric wheel 101. The bottom surface of the receiving part 111 is adapted to the arc shape of the gasket 4, which facilitates the assembly of the gasket 4.

[0116] In some embodiments, the locking device 20 of the mobility scooter further includes a rotating shaft 5, an eccentric wheel 101 having an eccentric hole 102, the rotating shaft 5 passing through the eccentric hole 102, and the eccentric wheel 101 being rotatable about the axis of the rotating shaft 5.

[0117] Specifically, such as Figure 6 As shown, the axis of the rotating shaft 5 is orthogonal to the vertical direction. The pull rod 2 is connected to the rotating shaft 5. By passing the rotating shaft 5 through the eccentric hole 102, when the eccentric wheel 101 rotates around the rotating shaft 5, the rising or falling of the rotating shaft 5 can drive the pull rod 2 to move upward or downward. The upward movement of the pull rod 2 drives the locking member 3 to move upward to lock the joint 14 of the first pipe 12 and the second pipe 13.

[0118] In some embodiments, the locking device 20 of the mobility scooter further includes a fastener 6, the rotating shaft 5 is provided with a through hole 51 extending radially therethrough, and the upper end of the pull rod 2 passes through the eccentric wheel 101 and the through hole 51 and is connected to the fastener 6.

[0119] Specifically, such as Figures 6-7 As shown, the rotating shaft 5 has a through hole 51 that runs through the rotating shaft 5 in the vertical direction. The upper end of the pull rod 2 passes through the through hole 51 and is connected to the fastener 6. Since the rotating shaft 5 passes through the eccentric wheel 101, the pull rod 2 is connected to the eccentric wheel 101.

[0120] Optionally, the fastener 6 is threadedly connected to the pull rod 2. Turning the fastener 6 clockwise increases the locking force of the locking device 20; turning it counterclockwise decreases the locking force. The amount of tightening of the fastener 6 controls the magnitude of the locking force of the locking device 20, achieving rapid adjustment of the locking force. It can be understood that the locking device 20 first releases the joint 14 of the first pipe fitting 12 and the second pipe fitting 13, then adjusts the locking force of the locking device 20, and then tightens the joint 14 of the first pipe fitting 12 and the second pipe fitting 13. This process is repeated several times until the locking force is appropriate, ensuring the locking force of the locking device 20 and improving the stability and reliability of locking the first pipe fitting 12 and the second pipe fitting 13.

[0121] In some embodiments, such as Figure 6 As shown, the outer peripheral surface of the eccentric wheel 101 is provided with a groove 103, and at least a portion of the fastener 6 is located within the groove 103. By hiding at least a portion of the fastener 6 within the groove 103, the exposed portion of the locking device 20 is further reduced, improving the overall coordination of the locking device 20, and the overall structure of the locking device 20 is more compact.

[0122] In some embodiments, the locking member 3 includes a first wedge 31 and a second wedge 32. The first wedge 31 is connected to the lower end of the pull rod 2. Both the first wedge 31 and the second wedge 32 include inclined surfaces. The inclined surfaces of the first wedge 31 and the second wedge 32 cooperate with each other. When the pull rod 2 drives the first wedge 31 to move upward, one of the first wedge 31 and the second wedge 32 abuts against the inner wall of the first pipe 12 and the other abuts against the inner wall of the second pipe 13 to lock the joint 14 of the first pipe 12 and the second pipe 13.

[0123] Specifically, such as Figure 7 As shown, the second wedge 32 and the first wedge 31 are arranged sequentially in the vertical direction. The pull rod 2 passes through the second wedge 32 and the first wedge 31 in sequence and is connected to the first wedge 31. The upper end of the second wedge 32 extends into the first pipe fitting 12, and the lower end of the second wedge 32 is located outside the first pipe fitting 12. The lower end surface of the second wedge 32 is a slope, and the upper end surface of the first wedge 31 is a slope. The slope of the first wedge 31 and the slope of the second wedge 32 cooperate with each other.

[0124] When the eccentric wheel 101 rotates, it drives the pull rod 2 to move up or down. Since the first wedge block 31 is connected to the lower end of the pull rod 2, the upward or downward movement of the pull rod 2 will synchronously drive the first wedge block 31 to move up or down.

[0125] When the pull rod 2 drives the first wedge 31 to move upward, the upward movement of the first wedge 31 drives the second wedge 32 to move upward so that the second wedge 32 abuts against the inner wall of the first pipe 12. Due to the inclined surface, when the first wedge 31 can no longer move upward, the upward movement of the first wedge 31 is transformed into an outward tension displacement of the first wedge 31, causing the first wedge 31 to move outward and squeeze against the inner circumferential surface of the second pipe 13, thereby locking the joint 14 of the first pipe 12 and the second pipe 13.

[0126] When the lever 2 moves the first wedge 31 downwards, the outer circumferential surface of the first wedge 31 separates from the inner circumferential surface of the second tube 13, and the first tube 12 and the second tube 13 separate, facilitating the rotation and vertical movement of the first tube 12. By abutting or separating the first wedge 31 from the inner circumferential surface of the second tube 13, the locking and releasing of the joint 14 between the first tube 12 and the second tube 13 is achieved. The locking operation is simple and the locking force is reliable and stable. Because the first wedge 31 abuts against the inner circumferential surface of the second tube 13, the first tube 12 is prevented from shaking, improving the user's riding experience.

[0127] It is understandable that the displacement of the first wedge 31 moving outward is not large. Since the pull rod 2 is relatively long, the lower end of the pull rod 2 has the displacement to move outward. The upward movement of the pull rod 2 can drive the lower end of the pull rod 2 and the first wedge 31 to move outward, while also preventing the pull rod 2 from shaking.

[0128] Optionally, the lower end of the pull rod 2 has a stop 21, which abuts against the lower end of the first wedge 31. This facilitates the pull rod 2 to move the first wedge 31 and prevents the pull rod 2 from disengaging from the first wedge 31.

[0129] In some embodiments, the locking member 3 includes at least one third wedge 33 and a mating part 34. The mating part 34 is located inside the first pipe fitting 12 and connected to the lower end of the pull rod 2. Both the mating part 34 and the third wedge 33 include inclined surfaces, and the inclined surfaces of the mating part 34 and the third wedge 33 cooperate with each other. One of the joint portions 14 of the first pipe fitting 12 and the second pipe fitting 13 includes an inner pipe section 141 and the other includes an outer pipe section 142. The outer pipe section 142 is sleeved outside the inner pipe section 141. The inner pipe section 141 is provided with a limiting groove 121 that penetrates the corresponding pipe wall. When the pull rod 2 pulls the mating part 34 to move upward, a portion of the third wedge 33 extends through the limiting groove 121 and protrudes from the inner pipe section 141 to abut against the inner circumferential surface of the corresponding pipe fitting of the outer pipe section 142, so as to lock the joint portion 14 of the first pipe fitting 12 and the second pipe fitting 13.

[0130] In the joint 14 of the first pipe fitting 12 and the second pipe fitting 13, one includes an inner pipe section 141 and the other includes an outer pipe section 142. Alternatively, the first pipe fitting 12 may include the inner pipe section 141 and the second pipe fitting 13 may include the outer pipe section 142, or the first pipe fitting 12 may include the outer pipe section 142 and the second pipe fitting 13 may include the inner pipe section 141. For ease of description, this embodiment uses the example of the first pipe fitting 12 including the inner pipe section 141 and the second pipe fitting 13 including the outer pipe section 142, with the outer pipe section 142 fitted outside the inner pipe section 141.

[0131] Specifically, such as Figure 8 and Figure 9 As shown, the mating part 34 is provided at the lower end of the pull rod 2 and surrounds the pull rod 2. The outer peripheral surface of the mating part 34 is an inclined surface. The outer side of the third wedge 33 is mated in the limiting groove 121 of the inner pipe section 141 of the first pipe fitting 12, and the inner peripheral surface of the third wedge 33 is an inclined surface.

[0132] When the pull rod 2 moves upward, it drives the mating part 34 to move upward. When the mating part 34 moves upward, it drives the third wedge block 33 to move upward. Due to the mutual cooperation between the inclined surface of the mating part 34 and the third wedge block 33, the third wedge block 33 moves outward so that the outer peripheral surface of the third wedge block 33 abuts against the inner peripheral surface of the outer pipe section 142 of the second pipe fitting 13, thereby locking the joint 14 of the first pipe fitting 12 and the second pipe fitting 13.

[0133] In some embodiments, such as Figure 8As shown, the locking component 3 also includes a limiting block 35, which is located at the upper end of the third wedge 33. The limiting block 35 is situated within the inner pipe section 141 and can abut against the inner wall surface of the corresponding pipe fitting, thereby limiting the radial displacement of the third wedge 33 within the corresponding pipe fitting of the inner pipe section 141. By providing a limiting block 35 at the upper end of the third wedge 33, the third wedge 33 is prevented from falling out of the limiting groove 121 during assembly, thus improving assembly efficiency.

[0134] In some embodiments, such as Figure 8 As shown, the mating part 34 includes multiple inclined surfaces, which are arranged at intervals around the tie rod 2. Multiple third wedges 33 are also present, each engaging with one of the mating parts 34. By using the multiple inclined surfaces and the multiple third wedges 33 of the mating part 34, the contact area between the third wedges 33 and the inner circumferential surface of the second pipe fitting 13 is increased, thereby improving the reliability of the locking device 20.

[0135] Optionally, the outer peripheral surface of the third wedge 33 is provided with a protrusion 331. By providing a protrusion 331 on the outer peripheral surface of the third wedge 33, the friction between the third wedge 33 and the inner peripheral surface of the second pipe fitting 13 is increased, further improving the locking reliability.

[0136] The mobility scooter of this utility model embodiment includes the locking device 20 of the mobility scooter of the above embodiment.

[0137] The mobility scooter of this utility model, by including the locking device 20 of the above embodiment, improves the overall coordination and safety of the mobility scooter.

[0138] In some embodiments, the mobility scooter is a scooter, and the control lever assembly of the mobility scooter is the handlebar of the scooter.

[0139] Specifically, such as Figures 6-7 As shown, when the locking device 20 is installed on the scooter, and the locking device 20 releases the joint 14 of the first tube 12 and the second tube 13, the first tube 12 can rotate in the up-down direction relative to the second tube 13 to adjust the direction of the control lever assembly 100. By locking and releasing the joint 14 of the first tube 12 and the second tube 13 through the locking device 20, the rotation of the control lever assembly 100 of the scooter is realized, thereby reducing the storage size of the scooter.

[0140] In this embodiment, by concealing a portion of the eccentric wheel 101 within the receiving portion 111 of the first tube 12, the exposed portion of the locking device 20 can be reduced, improving the overall coordination of the scooter. Furthermore, when the locking device 20 is installed on the scooter and locks the joint 14 of the first tube 12 and the second tube 13, at least a portion of the wrench 104 extends vertically and fits against the first tube 12, further improving the overall coordination of the scooter.

[0141] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0142] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0143] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0144] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0145] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0146] It is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A locking device for a scooter, characterized in that, The scooter comprises a control rod assembly, the control rod assembly comprises a handle, a first pipe connected with a lower end of the handle and a second pipe sleeved with the first pipe, an upper end of the handle is provided with a receiving part, the locking device is used for locking and releasing a joint part of the first pipe and the second pipe, the locking device comprises: a driving member, the driving member is rotatable relative to the first pipe, at least a part of the driving member is located in the receiving part and abuts against the first pipe; a pull rod, the pull rod is arranged in the first pipe, an upper end of the pull rod is connected with the driving member, the driving member drives the pull rod to move upward or downward when the driving member rotates; a locking member, the locking member is connected with a lower end of the pull rod, the locking member is pressed or released in a radial direction of the second pipe when the locking member moves upward or downward under the driving of the pull rod.

2. The scooter locking device of claim 1, wherein, The handle comprises a control pad, the control pad comprises a first control pad, a second control pad and a connecting part located at an upper end of the first pipe, the receiving part is formed on the connecting part and located between the first control pad and the second control pad, the driving member abuts against the connecting part.

3. The scooter locking device of claim 2, wherein, The connecting part comprises a connecting pipe, one end of the connecting pipe is connected with the upper end of the first pipe, the connecting pipe is connected with the first control pad and the second control pad.

4. The scooter locking device of claim 2, wherein, An outer peripheral surface of the connecting part is provided with a recess, the recess is located between the first control pad and the second control pad, a part of the driving member is located in the recess.

5. The scooter locking device of claim 3, wherein, The connecting pipe comprises a first bending part, the first bending part is located between one end of the connecting pipe and the other end of the connecting pipe, an outer peripheral surface of the connecting pipe is provided with a recess, the recess is located between the first control pad and the second control pad, the recess is arranged on an upper surface of the first bending part, a part of the driving member is located in the recess.

6. The scooter locking device of claim 3, wherein, The driving member comprises an eccentric wheel and a wrench, the wrench is connected with an outer peripheral surface of the eccentric wheel, the eccentric wheel abuts against the connecting pipe, the eccentric wheel and the wrench are both located between the first control pad and the second control pad; The locking device further comprises a rotating shaft, the eccentric wheel is provided with an eccentric hole, the rotating shaft is arranged in the eccentric hole, the eccentric wheel is rotatable around an axis of the rotating shaft.

7. The scooter locking device of claim 6, wherein, An end of the wrench away from the eccentric wheel is provided with a folding part.

8. The scooter locking device of claim 6, wherein, A gasket is further included, one end of the gasket abuts against the connecting pipe, the other end of the gasket abuts against the outer peripheral surface of the eccentric wheel.

9. The scooter locking device of claim 6, wherein, A fastener is further included, the rotating shaft is provided with a through hole penetrating in a radial direction of the rotating shaft, an upper end of the pull rod is arranged in the eccentric wheel and the through hole and connected with the fastener, the fastener is located in the receiving part.

10. The scooter locking device of claim 9, wherein, An outer peripheral surface of the eccentric wheel is provided with a groove, at least a part of the fastener is located in the groove.

11. The scooter locking device according to any one of claims 1-10, wherein, The locking member comprises a first wedge and a second wedge, the first wedge is connected with the lower end of the pull rod, and the first wedge and the second wedge each comprise an inclined surface; the inclined surface of the first wedge and the inclined surface of the second wedge are matched with each other, and when the pull rod drives the first wedge to move upward, one of the first wedge and the second wedge abuts against the inner wall of the first pipe and the other abuts against the inner wall of the second pipe, so as to lock the joint of the first pipe and the second pipe.

12. The scooter locking device according to any one of claims 1-10, wherein, The locking member comprises at least one third wedge and a matching part, the matching part is located in the first pipe and connected with the lower end of the pull rod, the matching part and the third wedge each comprise an inclined surface, and the inclined surface of the matching part and the inclined surface of the third wedge are matched with each other; one of the joint of the first pipe and the second pipe comprises an inner pipe section and the other comprises an outer pipe section, and the outer pipe section is sleeved outside the inner pipe section; the inner pipe section is provided with a limiting slot penetrating through the corresponding pipe wall; when the pull rod drives the matching part to move upward, a part of the third wedge penetrates through the limiting slot and protrudes from the inner wall of the corresponding pipe of the inner pipe section and the outer pipe section, so as to lock the joint of the first pipe and the second pipe.

13. The scooter locking device of claim 12, wherein, The locking member further comprises a limiting block, the limiting block is arranged at the upper end of the third wedge, the limiting block is located in the inner pipe section and can abut against the inner wall of the corresponding pipe, so as to limit the displacement of the third wedge in the radial direction of the corresponding pipe of the inner pipe section; and / or, The matching part comprises a plurality of inclined surfaces, and the plurality of inclined surfaces of the matching part are arranged at intervals in the circumferential direction of the pull rod; the third wedge is a plurality of third wedges, and the plurality of third wedges are arranged one by one with the plurality of matching parts.

14. A locking device for a scooter, characterized in that The scooter comprises a control rod assembly, the control rod assembly comprises a first pipe and a second pipe sleeved with the first pipe, the outer periphery of the first pipe has a receiving part, the locking device is used for locking and releasing the joint of the first pipe and the second pipe, and the locking device comprises: a driving member, the driving member is rotatable relative to the first pipe, at least a part of the driving member is located in the receiving part and abuts against the first pipe; a pull rod, the pull rod is arranged in the first pipe, and the upper end of the pull rod is connected with the driving member, and the driving member drives the pull rod to move upward or downward when the driving member rotates; a locking member, the locking member is connected with the lower end of the pull rod, and the locking member can press or release the second pipe in the radial direction of the second pipe when the locking member moves upward or downward under the driving of the pull rod.

15. The scooter locking device of claim 14, wherein, The control rod assembly further comprises a manipulating member, and the manipulating member comprises a handle, the handle is connected with the upper end of the first pipe.

16. The scooter locking device of claim 14, wherein, The first pipe comprises a bending part, the bending part is located between the upper end of the first pipe and the lower end of the first pipe and above the second pipe, and the receiving part is arranged on the upper surface of the bending part.

17. The scooter locking device of claim 14, wherein, The driving member comprises an eccentric wheel and a wrench, the wrench is connected with the outer circumferential surface of the eccentric wheel, the eccentric wheel abuts against the first pipe, and at least part of the eccentric wheel is located in the accommodating portion.

18. The scooter locking device of claim 17, wherein, The wrench is provided with a folding portion at the end away from the eccentric wheel.

19. The scooter locking apparatus of claim 17, wherein, The lock-up device further comprises a gasket, one end of the gasket abuts against the first pipe, and the other end of the gasket abuts against the outer circumferential surface of the eccentric wheel.

20. The scooter locking apparatus of claim 17, wherein, The lock-up device further comprises a rotating shaft, the eccentric wheel is provided with an eccentric hole, the rotating shaft is arranged in the eccentric hole, and the eccentric wheel is rotatable around the axis of the rotating shaft.

21. The scooter locking device of claim 20, wherein, The lock-up device further comprises a fastener, the rotating shaft is provided with a through hole penetrating in the radial direction, and the upper end of the pull rod is arranged in the eccentric wheel and the through hole and connected with the fastener.

22. The scooter locking device of claim 21, wherein, The outer circumferential surface of the eccentric wheel is provided with a groove, and at least part of the fastener is located in the groove.

23. Scooter locking device according to any of claims 14-22, characterized in that, The lock-up device further comprises a first wedge and a second wedge, the first wedge is connected with the lower end of the pull rod, and the first wedge and the second wedge each comprise a slope; the slope of the first wedge and the slope of the second wedge are matched with each other, and when the pull rod drives the first wedge to move upward, one of the first wedge and the second wedge abuts against the inner wall of the first pipe and the other abuts against the inner wall of the second pipe, so as to lock the joint of the first pipe and the second pipe.

24. Scooter locking device according to any of claims 14-22, characterized in that, The lock-up device further comprises at least one third wedge and a matching portion, the matching portion is located in the first pipe and connected with the lower end of the pull rod, the matching portion and the third wedge each comprise a slope, and the slope of the matching portion and the slope of the third wedge are matched with each other; one of the joint of the first pipe and the second pipe comprises an inner pipe section, and the other comprises an outer pipe section, the outer pipe section is arranged outside the inner pipe section; the inner pipe section is provided with a limiting slot penetrating through the corresponding pipe wall; when the pull rod drives the matching portion to move upward, a part of the third wedge penetrates through the limiting slot and abuts against the inner circumferential surface of the corresponding pipe of the inner pipe section and the outer pipe section, so as to lock the joint of the first pipe and the second pipe.

25. The scooter locking device of claim 24, wherein, The lock-up device further comprises a limiting block, the limiting block is arranged at the upper end of the third wedge, the limiting block is located in the inner pipe section and can abut against the inner wall surface of the corresponding pipe, so as to limit the displacement of the third wedge in the radial direction of the corresponding pipe of the inner pipe section; and / or, The matching portion comprises a plurality of slopes, the plurality of slopes of the matching portion are arranged in the circumferential direction of the pull rod, and the third wedge is a plurality of third wedges, the plurality of third wedges are arranged one by one with the plurality of matching portions.

26. A scooter, characterized in that The lock-up device comprises a scooter according to any one of claims 1-25.

27. The scooter of claim 26, wherein, The scooter is a balance car, and the control lever assembly of the scooter is a leg control lever of the balance car; or the scooter is a scooter, and the control lever assembly of the scooter is a handrail lever of the scooter.

28. The scooter of claim 26 or 27, wherein, The lock-up device is used for telescopic adjustment of the control lever assembly of the scooter. The lock-up device is used for telescopic adjustment of the control lever assembly of the scooter.

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