A handrail, a seat and a scooter

Abstract

The application discloses a handrail, which comprises a handrail rod, an assembly body slidingly connected to the handrail rod in the vertical direction, and a handrail plate slidingly connected to the assembly body in the front-back direction; the assembly body is provided with a lifting locking unit for locking the handrail rod and a translation locking unit for locking the handrail plate; the assembly body is provided with an adjusting piece linked with the lifting locking unit and the translation locking unit; the adjusting piece can be adjusted from an initial state to make the lifting locking unit change from a locking state to an unlocking state and the translation locking unit change from a locking state to an unlocking state. The application further discloses a seat with the handrail and a scooter. The application has the beneficial effects that the handrail can be used by users with different body types by adjusting, and the operation of the user can be simplified.

Description

Technical Field

[0001] This invention relates to a handrail, a seat, and a mobility scooter, and is applied in the technical field of mobility scooters. Background Technology

[0002] The mobility scooters on the market are mainly designed for the elderly. They are primarily electric and can be driven by the user through a control device, making them a convenient mode of transportation for senior citizens.

[0003] Currently, most mobility scooters are equipped with armrests. On the one hand, if the user encounters bumps while riding the scooter, the armrests can prevent the user from falling out of the scooter, thus improving safety. On the other hand, the armrests can support the user's arms while driving, improving driving comfort.

[0004] For example, the invention patent with publication number CN115352562B discloses an elderly mobility scooter. The seat assembly rotates and sets the armrest assembly via a rotating limiting component. By incorporating an automatically raising and lowering armrest assembly, the armrest assembly remains folded when the user gets on the scooter and automatically rises after the user sits down. In this patent, the armrest can only be flipped, providing only a good protective function; however, the position of the armrest cannot be adjusted while in use, resulting in poor adaptability for users of different body types. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a handrail, a seat and a mobility scooter that can be adjusted to fit users of different body types and to simplify user operation.

[0006] The present invention is achieved through the following technical solution.

[0007] A handrail includes a handrail bar, an assembly slidably connected to the handrail bar in a vertical direction, and a handrail plate slidably connected to the assembly in a front-to-back direction; the assembly is provided with a lifting locking unit for locking the handrail bar and a translation locking unit for locking the handrail plate; the assembly is provided with an adjusting member that is linked to the lifting locking unit and the translation locking unit, the adjusting member being movable from an initial state to change the lifting locking unit from a locked state to an unlocked state and the translation locking unit from an unlocked state to a locked state.

[0008] As a further improvement of the present invention, the adjusting member can be switched from an initial state to a first adjusting state and a second adjusting state through active adjustment; when the adjusting member is in the first adjusting state, the lifting locking unit is in the locked state and the translation locking unit is in the unlocked state; when the adjusting member is in the second adjusting state, the lifting locking unit is in the unlocked state and the translation locking unit is in the locked state.

[0009] As a further improvement of the present invention, the handrail is provided with multiple lifting positions arranged vertically; the handrail plate is provided with multiple translation positions arranged in the front-back direction and multiple temporary positions arranged in the front-back direction and corresponding to the translation positions; when the adjusting member is in the initial state, the lifting locking unit is locked in the lifting position and the translation locking unit is locked in the translation position; when the adjusting member is in the first adjusting state, the lifting locking unit is locked in the lifting position, and the translation locking unit is separated from the translation position and the temporary position; when the adjusting member is in the second adjusting state, the lifting locking unit and the lifting position are separated, and the translation locking unit is locked in the temporary position.

[0010] As a further improvement of the present invention, the lifting locking unit and the lifting gear can be engaged in the front-to-back direction and are adapted to the locking state of the lifting locking unit; the translation locking unit and the translation gear / temporary gear can be engaged in the vertical direction and are adapted to the locking state of the translation locking unit.

[0011] As a further improvement of the present invention, the adjusting member is slidably connected to the assembly in the vertical direction, and the sliding of the adjusting member relative to the assembly in the vertical direction is suitable for movable adjustment; the adjusting member has a limiting structure, which is used to limit the magnitude of the forward and backward movement stroke of the lifting locking unit, and the forward and backward movement stroke increases as the adjusting member slides in the vertical direction from the initial state; the translation locking unit is disposed on the adjusting member, such that the vertical movement stroke of the translation locking unit is limited by the sliding of the adjusting member in the vertical direction.

[0012] As a further improvement of the present invention, the engagement depth of the lifting locking unit and the lifting gear is greater than the engagement depth of the translation locking unit and the translation gear, and the adjusting member is defined with a single adjustment direction, so that the adjusting member is switched sequentially from the initial state to the first adjustment state and the second adjustment state by sliding in the adjustment direction.

[0013] As a further improvement of the present invention, the adjusting member is provided with an elastic reset member, which is used to drive the adjusting member to reset to the initial state.

[0014] As a further improvement of the present invention, the translation locking unit has an elastic part, and when the translation locking unit and the translation gear are engaged, the elastic part is in a compressed state.

[0015] As a further improvement of the present invention, the assembly includes a support and a bracket disposed at the bottom of the support, the adjusting member being slidably connected to the bracket in the vertical direction; the bracket being slidably inserted into the handrail in the vertical direction, the lifting position being formed on the inner wall of the handrail; the handrail plate being slidably connected to the support in the front-back direction, and the bottom of the handrail plate having a receiving groove for setting a translation position and a temporary position; the support having a through groove, such that the adjusting member passes through the through groove and extends into the receiving groove.

[0016] As a further improvement of the present invention, the assembly further includes a housing, the housing being connected to the support and slidably fitted onto the handrail in the vertical direction; the housing has a window, and the adjusting member is provided with an adjusting handle extending through the window.

[0017] As a further improvement of the invention, the bracket has a slide groove extending in a vertical direction, and the adjusting member is slidably mounted on the slide groove; the bracket has a through hole in a front-rear direction and communicating with the slide groove, the through hole allowing the lifting locking unit to pass through.

[0018] A vehicle seat includes a seat and two armrests; each side of the seat is provided with a connecting seat corresponding to the armrest, and the bottom of the armrest is provided with a connecting body rotatably connected to the connecting seat, so that the armrest can be flipped in the front-back direction; the connecting body is provided with a rotation locking unit, and the connecting seat is provided with a locking position, and when the armrest is in the upright state, the rotation locking unit can be locked in the locking position or separated from the locking position.

[0019] As a further improvement of the present invention, the rotation locking unit and the locking position can be engaged in the left and right direction to adapt to the locking state of the rotation locking unit; the connecting seat is provided with a rotating shaft extending left and right, and the connecting body is movably adjusted on the rotating shaft so that the connecting body can rotate around the rotating shaft and slide along the rotating shaft. The sliding of the connecting body along the rotating shaft causes the rotation locking unit and the locking position to engage or disengage.

[0020] As a further improvement of the present invention, the connecting body is provided with an elastic element positioned on the rotating shaft. The elastic element is used to apply elastic force to the connecting body and drive the connecting body to slide along the rotating shaft so that the rotation locking unit and the locking position are engaged.

[0021] As a further improvement of the present invention, the connecting body is provided with a stop structure, the connecting seat is provided with a slide rail, and the stop structure slides on the slide rail when the connecting body rotates around the pivot; the slide rail is provided with a first limiting structure, which abuts against the stop structure when the handrail is in an upright state, and is used to limit the maximum angle of the handrail's forward rotation.

[0022] As a further improvement of the present invention, the slide is provided with a second limiting structure, which abuts against the stop structure when the handrail is in a flat state, and is used to limit the maximum angle at which the handrail flips backward.

[0023] As a further improvement of the present invention, the bottom of the chair seat is provided with a crossbeam extending in the left-right direction, and the two connecting seats are respectively provided at both ends of the crossbeam.

[0024] As a further improvement of the present invention, the crossbeam frame includes a main beam disposed at the bottom of the seat, two connecting rods respectively slidably inserted at both ends of the main beam, and a locking structure for locking the main beam and the connecting rods.

[0025] A mobility scooter, including the seat.

[0026] The beneficial effects of this invention are:

[0027] 1. The vertical and forward / backward adjustments can accommodate users of different body types. The adjustment component can simultaneously control the locking and unlocking states of the lifting and sliding locking units, simplifying the adjustment operation. This makes the handrail in this embodiment suitable for use on mobility scooters, especially those used by the elderly.

[0028] 2. The adjustment mechanism allows users to make targeted adjustments according to their needs, preventing situations where the handrail is simultaneously switched to the unlocked state in both the vertical and forward / backward directions, thus avoiding accidental operation by the user;

[0029] 3. The adjustment mechanism can switch between two different adjustment states in a single adjustment direction, i.e., one operation mode. These two adjustment states correspond to vertically adjustable but horizontally non-adjustable and vertically non-adjustable but horizontally adjustable, respectively, greatly simplifying the adjustment operation of the handrail. Attached Figure Description

[0030] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings to aid in understanding the objectives and advantages of the present invention, wherein:

[0031] Figure 1 A schematic diagram of the handrail for implementing Case 1;

[0032] Figure 2 A sectional view of the handrail for implementing Case 1;

[0033] Figure 3 for Figure 2 A magnified view of part A in the middle;

[0034] Figure 4 for Figure 2 A magnified view of part B in the middle section;

[0035] Figure 5 A schematic diagram of the support and adjustment components for implementing Case 1;

[0036] Figure 6 A schematic diagram of the handrail for implementing Case 1;

[0037] Figure 7 A schematic diagram of the vehicle seat for implementing Case 2;

[0038] Figure 8 A schematic diagram of the connector and connector body for implementing Case 2;

[0039] Figure 9 This is a sectional view of the connector and connector body for implementing Case 2. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0041] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0042] Implementation Case 1:

[0043] A type of handrail, reference Figures 1-6 The system includes a handrail 2, an assembly 1, and a handrail plate 3. The handrail 2 extends vertically, the assembly 1 is slidably connected to the handrail 2 vertically, and the handrail plate 3 extends forward and backward and is slidably connected to the assembly 1 forward. In this application, the facing direction of the user sitting in the seat (see Embodiment 2) is defined as forward, and the forward, backward, left, and right directions are defined based on this. It should be noted that the vertical, left, right, and forward / backward directions in this embodiment are general directions. For example, the vertical direction is not necessarily perpendicular to the horizontal plane; a slight angular deviation is also considered a vertical direction. The left, right, and forward / backward directions are treated similarly.

[0044] In this embodiment, assembly 1 is equipped with a lifting locking unit 51 and a translation locking unit 61. The lifting locking unit 51 is used to lock the handrail 2, and the translation locking unit 61 is used to lock the handrail plate 3. Assembly 1 is equipped with an adjusting component 4, which is linked with the lifting locking unit 51 and the translation locking unit 61. The adjusting component 4 has an initial state, and the adjusting component 4 can be adjusted from the initial state to change the locking unit from the locked state to the unlocked state and the translation locking unit 61 from the unlocked state to the locked state.

[0045] In this embodiment, the handrail assembly 1 can slide vertically relative to the handrail bar 2, and the handrail plate 3 can slide forward and backward relative to the assembly 1. Thus, the height and forward and backward position of the handrail plate 3 can be adjusted by bidirectional sliding to match the user's arm support needs.

[0046] The handrail in this embodiment allows for customization of the handrail plate 3's position through vertical and forward / backward adjustments, thus accommodating users of different body types. Furthermore, the adjustment component 4 allows for simultaneous control of the locking and unlocking states of the lifting locking unit 51 and the translation locking unit 61, simplifying the adjustment process and making the handrail suitable for use on mobility scooters, especially those used by the elderly.

[0047] In this embodiment, the handrail adjustment component 4 has two adjustment states: a first adjustment state and a second adjustment state. The adjustment component 4 can be switched from its initial state to these two states through active adjustment. When the adjustment component 4 is in the first adjustment state, the lifting locking unit 51 is locked and the translation locking unit 61 is unlocked, meaning the assembly 1 cannot be adjusted, and the handrail plate 3 can be adjusted by sliding in the front-back direction. When the adjustment component 4 is in the second adjustment state, the lifting locking unit 51 is unlocked and the translation locking unit 61 is locked, meaning the assembly 1 can be adjusted by sliding in the vertical direction, and the handrail plate 3 cannot be adjusted.

[0048] In this embodiment, the adjusting component 4 can be moved from its initial state to two different adjustment states. In the first adjustment state, the handrail can only be adjusted forward and backward, but not in height. In the second adjustment state, the handrail can only be adjusted in height, but not forward and backward. Therefore, the adjustment mechanism of this embodiment allows users to make targeted single adjustments according to their needs, preventing situations where the handrail is simultaneously switched to an unlocked state in both the vertical and forward / backward directions. This avoids user misoperation; for example, if a user only needs to adjust the height of the handrail, and the handrail is unlocked in both the vertical and forward / backward directions, the user is prone to accidentally adjusting it in the forward / backward direction when adjusting in the vertical direction.

[0049] More specifically, the handrail 2 has multiple vertically arranged lifting positions 52, each corresponding to a height position of the handrail 3. The number of lifting locking units 51 matches the number of rows of lifting positions 52. The handrail 3 has multiple horizontal sliding positions 62 arranged in the front-back direction and multiple temporary positions 63 arranged in the front-back direction and corresponding to the horizontal sliding positions 62. The horizontal sliding positions 62 and the temporary positions 63 are spaced apart vertically, and each horizontal sliding position 62 corresponds to a front-back position of the handrail 3.

[0050] When the adjusting component 4 is in its initial state, the lifting locking unit 51 is locked in the lifting position 52, and the translation locking unit 61 is locked in the translation position 62. That is, both the lifting locking unit 51 and the translation locking unit 61 are locked, and neither the assembly 1 nor the armrest 3 can be adjusted. When the adjusting component 4 is in its first adjustment state, the lifting locking unit 51 is locked in the lifting position 52, and the translation locking unit 61 is separated from the translation position 62 and the temporary position 63. That is, the lifting locking unit 51 is locked, and the translation locking unit 61 is unlocked. The assembly 1 cannot be adjusted, but the armrest 3 can be adjusted in the forward and backward direction. When the adjusting component 4 is in its second adjustment state, the lifting locking unit 51 and the lifting position 52 are separated, and the translation locking unit 61 is locked in the temporary position 63. That is, the lifting locking unit 51 is unlocked, and the translation locking unit 61 is locked. The assembly 1 can be adjusted vertically, but the armrest 3 cannot be adjusted.

[0051] In this embodiment, by setting multiple lifting positions 52 and multiple translation positions 62, the height and forward / backward position adjustments of the handrail can be made more precise. The number of positions is reasonably set according to the actual application requirements of the product. In addition, the setting of the temporary position 63 allows the translation locking unit 61 to be temporarily locked, which is used to adapt to the division between the first adjustment state and the second adjustment state.

[0052] In this embodiment, the lifting locking unit 51 and the sliding locking unit 61 can be engaged in the front-to-back direction. The engaged state corresponds to the locked state of the lifting locking unit 51, and correspondingly, the disengaged state of the lifting locking unit 51 corresponds to the unlocked state. Similarly, the sliding locking unit 61 and the sliding position 62 / temporary position 63 can be engaged in the vertical direction. The engaged state corresponds to the locked state of the sliding locking unit 61, and correspondingly, the disengaged state of the sliding locking unit 61 corresponds to the unlocked state. The engagement of the lifting locking unit 51 and the sliding locking unit 61 achieves the locking state through this engagement, ensuring that the assembly 1 and the handrail 3 are structurally sound and less prone to loosening when locked.

[0053] In this embodiment, the adjusting member 4 is a vertically extending rod-shaped structure. It is slidably connected to the assembly 1 in the vertical direction, allowing it to slide vertically on the assembly 1. Furthermore, the vertical sliding of the adjusting member 4 relative to the assembly 1 facilitates adjustment. Regarding the structural relationship between the lifting locking unit 51 and the adjusting member 4, the adjusting member 4 has a limiting structure 41. This limiting structure 41 restricts the forward and backward movement of the lifting locking unit 51, and the forward and backward movement increases as the adjusting member 4 slides vertically from its initial state. In other words, during the vertical sliding adjustment process from its initial state, the movable travel of the lifting locking unit 51 in the disengagement direction gradually increases. When the adjusting member 4 slides a certain distance, the lifting locking unit 51 can completely disengage from the engagement with the lifting position 52, thus completing the unlocking process.

[0054] More specifically, in this embodiment, the handrail 2 has protrusions 5a and recesses 5b arranged vertically and alternately. The recesses 5b constitute the lifting position 52, the lifting locking unit 51 is spherical, and the recesses 5b are arc-shaped structures adapted to the sphere. The limiting structure 41 has a support surface 41a that can support the sphere. The support surface 41a is an arc surface or an inclined surface, so that when the adjusting member 4 slides in the vertical direction, the movement of the sphere in the left and right directions can be gradually increased. When the lifting locking unit 51, i.e., the sphere, is in the unlocked state, when the assembly 1 is slid up or down, the sphere can be squeezed and dislodged from the recesses 5b.

[0055] In this embodiment, the lifting gear 52 is provided in two rows, and correspondingly, the lifting locking unit 51 is provided in two rows.

[0056] Regarding the structural relationship between the translation locking unit 61 and the adjusting member 4, in this embodiment, the translation locking unit 61 is located at the top of the adjusting member 4. Since the sliding direction of the adjusting member 4 is the same as the engaging direction of the translation locking unit 61, the vertical movement of the translation locking unit 61 is limited by the vertical sliding of the adjusting member 4. The continuous vertical sliding of the adjusting member 4 allows the translation locking unit 61 to disengage from the lifting position 52 and enter the unlocked state, and then engage with the temporary position 63.

[0057] More specifically, in this embodiment, the top of the adjusting member 4 has two branch structures 42 extending in the left-right direction, each forming a translation locking unit 61. Correspondingly, two rows of translation positions 62 are provided and spaced apart in the left-right direction. The two translation locking units 61 and two rows of translation positions 62 are symmetrically arranged about the adjusting member 4, making the force state balanced and stable, thereby improving the stability of the handrail 3 in the locked state. As for the temporary position 63, it only temporarily locks the translation locking unit 61 in the second adjusting state, which has relatively low requirements, so only one row of temporary positions 63 is provided. For the specific structure of the translation positions 62 and temporary positions 63, the handrail 3 is provided with three rows of toothed structures 6a at the corresponding positions. Each tooth groove 6b forms a translation position 62 or a temporary position 63, and the branch structure 42 is locked by being embedded in the tooth groove 6b.

[0058] In this embodiment, the engagement depth of the lifting locking unit 51 and the lifting gear 52 is greater than that of the translation locking unit 61 and the translation gear 62. This allows the translation locking unit 61 to disengage from the engagement state before the lifting locking unit 51, thus enabling the adjusting member 4 to have a single adjustment direction. As the adjusting member 4 slides along this adjustment direction from its initial state, when the translation locking unit 61 disengages from the engagement with the translation gear 62, the lifting locking unit 51 remains engaged with the lifting gear 52. As the adjusting member 4 continues to slide along the adjustment direction, the translation locking unit 61 and the temporary gear 63 complete their engagement, and the lifting locking unit 51 disengages from the engagement with the lifting gear 52. In other words, the adjusting member 4 sequentially switches from its initial state to the first adjustment state and the second adjustment state through sliding along the adjustment direction.

[0059] In summary, the handrail in this embodiment can simultaneously control the locking and unlocking states of the lifting locking unit 51 and the translation locking unit 61 through the adjustment component 4. The adjustment component 4 can also switch between two different adjustment states in a single adjustment direction, i.e., one operation mode. These two adjustment states correspond to vertically adjustable but horizontally non-adjustable and vertically non-adjustable but horizontally adjustable, respectively, greatly simplifying the adjustment operation of the handrail and making it particularly suitable for the elderly.

[0060] In this embodiment, the adjusting member 4 is equipped with an elastic reset member 43, which is used to drive the adjusting member 4 back to its initial state. More specifically, the elastic reset member 43 is a tension spring, with one end connected to the adjusting member 4 and the other end connected to the assembly 1. After the user completes the adjustment, releasing the adjusting member 4 will relock the assembly 1 and the armrest plate 3 under the action of the elastic reset member 43.

[0061] To further simplify user operation, in this embodiment, the translation locking unit 61 has an elastic part (not shown in the figure). Specifically, an outer sleeve structure made of elastic material can be fitted onto the translation locking unit 61. When the translation locking unit 61 and the translation stop 62 are engaged, the elastic part is in a compressed state. When the user slides the adjusting member 4 along the adjustment direction, as the adjusting member 4 gradually switches from the initial state to the first adjustment state, because the elastic part is in a compressed state, frictional resistance is generated between the elastic part and the translation stop 62 as the translation locking unit 61 gradually disengages from the translation stop 62. When the adjusting member 4 is adjusted to the first adjustment state, the translation locking unit 61 is no longer engaged with the translation stop 62, and there is no frictional resistance between the elastic part and the translation stop 62. For the user's operating experience, the user will clearly feel the damping during the process of the adjusting member 4 gradually switching from the initial state to the first adjustment state. At the moment the adjusting member 4 switches to the first adjustment state, the user will have a clear difference in feel due to the disappearance of frictional resistance, thus providing a prompt to the user and preventing over-adjustment, thereby helping the user improve the accuracy of operation.

[0062] Regarding the specific structure of assembly 1, in this embodiment, assembly 1 includes a support 11 and a bracket 12. The support 11 extends in the front-to-back direction, and the bracket 12 extends in the vertical direction and is located at the bottom of the support 11. The adjusting member 4 is slidably connected to the bracket 12 in the vertical direction. The bracket 12 is slidably inserted into the handrail 2 in the vertical direction, and the lifting position 52 is formed on the inner wall of the handrail 2. The handrail plate 3 is slidably connected to the support 11 in the front-to-back direction. More specifically, the bottom surface of the handrail plate 3 has sliding grooves 31 extending in the front-to-back direction on both sides, and the support 11 has two sliding strips 111 slidably connected in the sliding grooves 31, thereby realizing the front-to-back sliding of the handrail plate 3. The bottom of the handrail plate 3 has a receiving groove 32 for setting a translation position 62 and a temporary position 63. The translation position 62 is located at the bottom of the receiving groove 32, and the temporary position 63 is located at the top of the receiving groove 32. The support 11 is provided with a through groove 112 that runs vertically through it, so that the adjusting member 4 passes through the through groove 112 and extends into the receiving groove 32. The translation locking unit 61 located at the top of the adjusting member 4 can cooperate with the translation gear 62 and the lifting gear 52.

[0063] In this embodiment, assembly 1 also includes a housing 13, which is connected to the support 11 and slides vertically onto the handrail 2. The housing 13 protects the internal support 12 and the adjusting component 4. The housing 13 has a window 131, and the adjusting component 4 has an adjusting handle 44 extending through the window 131. The user can adjust the adjusting component 4 by pulling the adjusting handle 44, which is convenient for operation. In addition, the height of the window 131 matches the sliding adjustment stroke of the adjusting component 4. When the adjusting handle 44 is pulled upward and rests against the upper edge of the window 131, the adjusting component 4 is in a second adjustment state, that is, it is adjustable in the vertical direction but not in the front-to-back direction. The window 131 also serves to limit the movement of the adjusting component 4.

[0064] Regarding the structural relationship between the bracket 12 and the adjusting member 4, in this embodiment, the bracket 12 has a vertically extending groove 121, and the adjusting member 4 is slidably assembled on the groove 121. The bracket 12 has a through hole 122 in the front-back direction and communicating with the groove 121. The through hole 122 allows the lifting locking unit 51 to pass through, and the through hole 122 serves to limit the lifting locking unit 51, preventing the lifting locking unit 51 from falling off during the sliding adjustment process.

[0065] In addition, multiple hollow structures 123 are arranged on the support 12 to reduce the overall weight of the support 12.

[0066] Implementation Case 2:

[0067] A type of car seat, reference Figures 7-9 and combined Figure 1 It includes a seat 9 and two armrests, as shown in Implementation Case 1. The seat in this implementation case is mainly used in mobility scooters, especially mobility scooters used by the elderly.

[0068] In this embodiment, the seat 9 has corresponding armrest connecting seats 8 on both sides. The bottom of the armrest bar 2 has a connecting body 7, which is rotatably connected to the corresponding connecting seat 8, allowing the armrest to flip in the front-back direction. The connecting body 7 has a rotation locking unit 71, and the connecting seat 8 has a locking position 81. When the armrest is in the upright position, the rotation locking unit 71 can be locked in the locking position 81 or separated from the locking position 81. The armrest in the upright position is the normal use state. At this time, the rotation locking unit 71 is locked in the locking position 81, so that the armrest can be stably kept in its upright state. The user can support their arms on the armrest board 3. When the user is not sitting in the seat, by separating the rotation locking unit 71 from the locking position 81, the armrest can be freely flipped back and forth, and the armrest can be flipped backward to fold down, freeing up the space on both sides of the seat, thus making it more convenient for the user to get on and off the vehicle.

[0069] In this embodiment, the rotation locking unit 71 and the locking position 81 can be engaged in the left-right direction, adapting to the locked state of the rotation locking unit 71. Correspondingly, the separation of the rotation locking unit 71 and the locking position 81 adapts to the unlocked state of the rotation locking unit 71. A rotating shaft 82 extending in the left-right direction is provided on the connecting seat 8, and the extension direction of the rotating shaft 82 is the same as the engagement direction. The connecting body 7 is movably sleeved on the rotating shaft 82, allowing the connecting body 7 to rotate around the rotating shaft 82 and slide along the rotating shaft 82. The rotation of the connecting body 7 around the rotating shaft 82 allows the handrail to flip in the front-back direction, while the sliding of the connecting body 7 along the rotating shaft 82 allows the rotation locking unit 71 and the locking position 81 to engage or disengage.

[0070] In this embodiment, the user can slide the connecting body 7 along the pivot 82 by pushing the handrail left and right, thereby locking or unlocking the rotation locking unit 71 when the handrail is in the upright position. When the rotation locking unit 71 is unlocked, the user can flip the handrail backward to lay it down, which is quite convenient for the user.

[0071] Furthermore, in this embodiment, an elastic element 73 is provided inside the connecting body 7. The elastic element 73 is positioned on the rotating shaft 82 and can apply a spring force to the connecting body 7. The applied spring force can drive the connecting body 7 to slide along the rotating shaft 82, and cause the rotation locking unit 71 and the locking position 81 to engage. When the handrail is in the upright state, i.e., the user's use state, the elastic force of the elastic element 73 can better maintain the rotation locking unit 71 locked on the locking position 81, avoiding accidental unlocking and causing safety hazards.

[0072] In this embodiment, the connector 8 has a support surface 8a for supporting the proximal end 7a of the connector 7 near the connector 8. When the rotation locking unit 71 is locked in the locking position 81, the proximal end 7a of the connector 7 is attached to the support surface 8a, so that the connector 7 receives sufficient support from the connector 8.

[0073] In this embodiment, the portion of the rotating shaft 82 located inside the connecting body 7 is provided with a positioning member 821, and the elastic member 73 is sleeved on the outside of the rotating shaft 82, with its two ends supported on the positioning member 821 and the proximal end 7a respectively. The elastic member 73 can be specifically configured as a compression spring.

[0074] Furthermore, in this embodiment, the positioning element 821 can be adjusted along the axial direction of the rotating shaft 82. The positioning element 821 can be specifically set as a nut. Part of the outer surface of the rotating shaft 82 is provided with external threads and is threadedly connected to the internal threads of the nut. By rotating the nut, the position on the rotating shaft 82 can be adjusted, thereby adjusting the compression amount of the elastic element 73. Users can adjust it according to their own usage requirements to match the required force to push open the armrest and make it rotate to unlock.

[0075] In this embodiment, the distal end 7b of the connector 7, away from the connector seat 8, has an opening, and a plug 74 is fitted into the opening. After the user opens the plug 74, they can insert it into the connector 7 and adjust it by turning the nut. After adjustment, the user inserts the plug 74 into the opening to seal the connector 7, so as to prevent dust and other contaminants from entering the connector 7.

[0076] In this embodiment, the connecting body 7 is provided with a stop structure 72, and the connecting seat 8 is provided with a slide 83. The slide 83 is arc-shaped. When the connecting body 7 rotates around the pivot 82, the stop structure 72 slides on the slide 83. The slide 83 is provided with a first limiting structure 84, which abuts against the stop structure 72 when the handrail is in the upright state, thereby limiting the maximum angle of the handrail's forward tilt. When the user needs to tilt the handrail backward, they first push the handrail outward, causing the connecting body 7 to slide along the pivot 82 until the rotation locking unit 71 and the locking position 81 separate. At this time, since the first limiting structure 84 abuts against the stop structure 72, the handrail can be prevented from tilting forward. The user can then tilt the handrail backward.

[0077] Furthermore, in this embodiment, a second limiting structure 85 is also provided on the slide rail 83. When the handrail is in a flat position, the second limiting structure 85 abuts against the stop structure 72 to limit the maximum angle at which the handrail flips backward. Through the first limiting structure 84 and the second limiting structure 85, the range of forward and backward flipping of the handrail can be limited to match the user's usage needs.

[0078] More specifically, in this embodiment, the edge of the connecting seat 8 is arc-shaped, forming a slide 83. Several protruding structures are present on the edge of the connecting seat 8, forming a first limiting structure 84, a second limiting structure 85, and a locking position 81. The proximal end 7a of the connecting body 7 has two inserts extending towards the connecting seat 8. The two inserts are of different lengths; the shorter insert forms a rotation locking unit 71, and the longer insert forms a stop structure 72. This allows the rotation locking unit 71 to disengage from the locking position 81 when the connecting body 7 slides along the pivot 82, while the stop structure 72 remains in the sliding position.

[0079] In this embodiment, the bottom of the seat 9 is provided with a crossbeam 91 extending in the left and right direction, and two connecting seats 8 are respectively provided at both ends of the crossbeam 91. The crossbeam 91 can strengthen the connection of the connecting seats 8, making the armrest more secure and stable when in use by the user.

[0080] Furthermore, in this embodiment, the crossbeam frame 91 includes a main beam 911 located at the bottom of the seat 9, two connecting rods 912 slidably inserted at both ends of the main beam 911, and a locking structure 913 that locks the main beam 911 and the connecting rods 912. The user can adjust the connecting rods 912 to adjust the position of the armrest in the left-right direction. More specifically, in this embodiment, the main beam 911 is provided with a row of through holes, and the connecting rods 912 are provided with a row of corresponding threaded holes. The locking structure 913 specifically uses threaded fasteners, which are threaded through the through holes and threaded into the threaded holes to complete the locking. The threaded fasteners are provided with rotating handles for easy rotation by the user to connect or disassemble.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A handrail, characterized in that, The assembly includes a handrail (2), an assembly (1) slidably connected to the handrail (2) in the vertical direction, and a handrail plate (3) slidably connected to the assembly (1) in the front-back direction; the assembly (1) is provided with a lifting locking unit (51) for locking the handrail (2) and a translation locking unit (61) for locking the handrail plate (3); the assembly (1) is provided with an adjusting component (4) that is linked to the lifting locking unit (51) and the translation locking unit (61), the adjusting component (4) can be adjusted from the initial state, so that the lifting locking unit (51) changes from the locked state to the unlocked state and the translation locking unit (61) changes from the unlocked state to the locked state; The adjusting member (4) can be switched from the initial state to the first adjusting state and the second adjusting state through active adjustment; when the adjusting member (4) is in the first adjusting state, the lifting locking unit (51) is in the locked state and the translation locking unit (61) is in the unlocked state; when the adjusting member (4) is in the second adjusting state, the lifting locking unit (51) is in the unlocked state and the translation locking unit (61) is in the locked state. The handrail (2) has multiple lifting positions (52) arranged vertically; the handrail (3) has multiple translation positions (62) arranged in the front-back direction and multiple temporary positions (63) arranged in the front-back direction and corresponding to the translation positions (62); when the adjusting member (4) is in the initial state, the lifting locking unit (51) is locked in the lifting position (52) and the translation locking unit (61) is locked in the translation position (62); when the adjusting member (4) is in the first adjusting state, the lifting locking unit (51) is locked in the lifting position (52) and the translation locking unit (61) is separated from the translation position (62) and the temporary position (63); when the adjusting member (4) is in the second adjusting state, the lifting locking unit (51) and the lifting position (52) are separated and the translation locking unit (61) is locked in the temporary position (63); The lifting locking unit (51) and the lifting gear (52) can be engaged in the front-to-back direction and are adapted to the locking state of the lifting locking unit (51); the translation locking unit (61) and the translation gear (62) / temporary gear (63) can be engaged in the vertical direction and are adapted to the locking state of the translation locking unit (61). The adjusting member (4) is slidably connected to the assembly (1) in the vertical direction, and the sliding of the adjusting member (4) relative to the assembly (1) in the vertical direction is suitable for movable adjustment; the adjusting member (4) has a limiting structure (41), which is used to limit the size of the forward and backward movement stroke of the lifting locking unit (51), and the forward and backward movement stroke increases as the adjusting member (4) slides in the vertical direction from the initial state; the translation locking unit (61) is disposed on the adjusting member (4), such that the vertical movement stroke of the translation locking unit (61) is limited by the sliding of the adjusting member (4) in the vertical direction.

2. The handrail according to claim 1, characterized in that, The engagement depth of the lifting locking unit (51) and the lifting gear (52) is greater than the engagement depth of the translation locking unit (61) and the translation gear (62). The adjusting member (4) is limited to a single adjustment direction, so that the adjusting member (4) can be switched from the initial state to the first adjustment state and the second adjustment state in sequence by sliding in the adjustment direction.

3. The handrail according to claim 1, characterized in that, The adjusting member (4) is equipped with an elastic reset member (43), which is used to drive the adjusting member (4) to reset to the initial state.

4. The handrail according to claim 2, characterized in that, The translation locking unit (61) has an elastic part, and when the translation locking unit (61) and the translation position (62) are engaged, the elastic part is in a compressed state.

5. A vehicle seat, characterized in that, Includes a seat (9) and two armrests as described in any one of claims 1-4; the seat (9) is provided with connecting seats (8) for corresponding armrests on both sides, and the bottom of the armrest (2) is provided with a connecting body (7) rotatably connected to the connecting seat (8), so that the armrest can be flipped in the front-back direction; the connecting body (7) is provided with a rotation locking unit (71), and the connecting seat (8) is provided with a locking position (81). When the armrest is in the upright state, the rotation locking unit (71) can be locked on the locking position (81) or separated from the locking position (81).

6. A mobility scooter, characterized in that, Including the vehicle seat as described in claim 5.

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