Folding mechanism and scooter

Abstract

The utility model provides a folding mechanism and a scooter. The folding mechanism comprises a first folding seat; the second folding seat is provided with a connecting shaft seat; the connecting shaft assembly is rotatably arranged on the connecting shaft seat; the nut locking part is provided with a mounting hole, and at least one part of the connecting shaft assembly is located in the mounting hole; the connecting shaft assembly is sleeved with the connecting end of the wrench locking part, and the connecting end of the wrench locking part synchronously rotates along with the connecting shaft assembly. The ends, away from the connecting shaft assembly, of the nut locking part and the wrench locking part are used for locking the first folding base. And the limiting abutting part is arranged between the mounting hole and the connecting shaft assembly, so that after the wrench locking part is unlocked relative to the first folding seat and turned over to be opened by a preset angle, the limiting abutting part is triggered to enable the connecting shaft assembly to drive the nut locking part to rotate, and the nut locking part unlocks the first folding seat. The utility model solves the problem that the fastening bolt of the scooter in the prior art is easy to wear and rust.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and more specifically, to a folding mechanism and a scooter. Background Technology

[0002] Scooters are small and easy to fold, making them popular among young people and ride-hailing professionals. When in use, the scooter is unfolded and locked in place to maintain its integrity. After use, the locking mechanism can be released, allowing the scooter to be folded and stored away, further reducing its space requirements.

[0003] Existing scooters generally consist of two parts: one part has a rotatable locking bolt and a locking wrench, and the other part has a locking slot. The locking bolt engages with the locking slot to lock the two parts of the scooter. The locking wrench has a first protrusion that abuts against a second protrusion on the outer periphery of the locking bolt. When the locking wrench is turned, the first protrusion abuts against the second protrusion, thereby causing the locking wrench to rotate and release the locking bolt from the locking slot, thus unlocking the scooter. However, after prolonged use, the coating on the locking bolt is easily damaged by the trigger, leading to wear and rust when the bolt comes into contact with air, reducing its service life. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a scooter with a suspension bolt that is not easily worn.

[0005] To achieve the above objectives, the technical solution provided by an embodiment of this utility model is as follows:

[0006] A folding mechanism includes: a first folding seat; a second folding seat having a connecting shaft seat; a connecting shaft assembly rotatably disposed on the connecting shaft seat; a nut locking part having a mounting hole, at least a portion of the connecting shaft assembly being located within the mounting hole; a wrench locking part having a connecting end sleeved on the connecting shaft assembly and rotating synchronously with the connecting shaft assembly, the ends of both the nut locking part and the wrench locking part away from the connecting shaft assembly being used to lock the first folding seat; and a limiting abutment part disposed between the mounting hole and the connecting shaft assembly, such that after the wrench locking part unlocks relative to the first folding seat and flips open to a preset angle, the limiting abutment part is triggered to cause the connecting shaft assembly to drive the nut locking part to rotate, thereby releasing the nut locking part from locking the first folding seat.

[0007] The connecting shaft assembly is partially installed in the mounting hole on the nut locking part. One end of the nut locking part is locked to the first folding seat. When the nut locking part is released from the first folding seat, the connecting shaft assembly can be rotated by rotating the wrench locking part, which in turn triggers the limiting abutment part, thereby releasing the nut locking part from the first folding seat. During this process, the limiting abutment part is located between the mounting hole and the connecting shaft assembly, and the wrench locking part does not directly contact the nut locking part. Even after long-term use, the coating on the outer periphery of the nut locking part will not wear and rust due to the protruding structure on the wrench locking part, thus improving the service life of the nut locking part.

[0008] In some embodiments, the preset angle is greater than 10 degrees and less than 45 degrees. By designing the preset angle between 10 degrees and 45 degrees, the triggering limit abutment can be activated more quickly and effortlessly.

[0009] In some embodiments, the connecting shaft assembly includes: a connecting shaft, on which the connecting end of the wrench locking part is sleeved and rotates synchronously with the connecting shaft assembly; and an eccentric wheel, which is eccentrically disposed on the connecting shaft and can be accommodated in a mounting hole, with a limiting abutment disposed at the mating point between the eccentric wheel and the mounting hole. By connecting the wrench locking part and the eccentric wheel via the connecting shaft, rotating the wrench locking part can drive the eccentric wheel to rotate, thereby triggering the limiting abutment to release the locking state of the nut locking part.

[0010] In some embodiments, the connecting shaft assembly further includes a reset member, the two ends of which abut against the second folding seat and the nut locking part, respectively. By setting the reset member to reset the nut locking part, the operation steps are simplified, and the time for folding or opening the folding mechanism is saved.

[0011] In some embodiments, the limiting abutment is disposed at the distal end of the eccentric wheel; and / or the limiting abutment is disposed close to the second folding seat relative to the first folding seat. By disposing the limiting abutment close to the second folding seat, the space of the folding mechanism can be utilized efficiently, and disposing the limiting abutment at the distal end of the eccentric wheel can also increase the torque, making it easier to release the lock.

[0012] In some embodiments, the limiting abutment includes: a limiting step structure disposed on the wall of the mounting hole; and an abutment protrusion extending radially along the eccentric wheel and capable of contacting and stopping the limiting step structure or disengaging from it. When the abutment protrusion contacts and stops the limiting step structure, the nut locking part can rotate synchronously with the eccentric wheel. When the abutment protrusion disengages from the limiting step structure, the eccentric wheel rotates relative to the nut locking part. By providing the abutment protrusion, the connecting shaft is rotated by the wrench locking part, which in turn drives the abutment protrusion on the eccentric wheel to approach the limiting step structure, thus unlocking the nut locking part, which enables rapid unlocking. Furthermore, this method is relatively simple to manufacture and assemble.

[0013] In some embodiments, a receiving groove is provided on the wall of the mounting hole. The receiving groove extends a predetermined length circumferentially along the mounting hole, and a limiting step structure is formed on the groove wall surface in the extending direction. The abutment protrusion extends radially along the eccentric wheel and into the receiving groove. By providing a receiving groove in the mounting hole and having the abutment protrusion extend radially along the eccentric cam, the mounting hole is simultaneously abutted by both the abutment protrusion and the proximal end of the eccentric cam, ensuring that the nut locking part can be driven by the wrench locking part to change the locking state.

[0014] In some embodiments, the abutment protrusion has a first limiting position and a non-limiting position. When the abutment protrusion is in the first limiting position, the limiting abutment portion abuts against the groove wall of the receiving groove, so that the connecting shaft assembly can drive the nut locking portion to rotate together. When the abutment protrusion is in the non-limiting position, the limiting abutment portion releases pressure from the groove wall of the receiving groove, and the connecting shaft assembly can rotate relative to the nut locking portion. By moving the abutment protrusion in the first limiting position and the non-limiting position, the switching between the unlocked and locked states of the nut locking portion is realized, which is simple in structure and easy for users to operate.

[0015] In some embodiments, the abutment protrusion further has a second limiting position; when the abutment protrusion is in the second limiting position, the nut locking portion is in the position of locking the first folding seat, and the limiting abutment portion stops against the groove wall on the other side of the receiving groove. By placing the abutment protrusion in the second limiting position, the locked state of the nut locking portion can be maintained, thereby improving the locking effect.

[0016] In some embodiments, the wrench locking part includes: a wrench body having a slide rail; a safety catch slidably disposed at the slide rail, the safety catch having a locking tongue for locking a first folding seat, the safety catch being at the end of the slide rail when locked with the first folding seat; and a resilient retainer disposed on the wrench body and pressing against the safety catch to give the safety catch a retaining force that holds it at the end of the slide rail. By locking the locking tongue on the safety catch to the first folding seat, the wrench body is prevented from being accidentally opened. The resilient retainer prevents the safety catch from sliding within the slide rail, causing the locking tongue to disengage from the first folding seat, thus improving the safety of the folding mechanism.

[0017] In some embodiments, the limiting abutment has a limiting state and a non-limiting state. When the limiting abutment is in the limiting state, the connecting shaft assembly drives the nut locking part to rotate synchronously; when the limiting abutment is in the non-limiting state, the connecting shaft assembly and the nut locking part can rotate relative to each other. By operating the wrench locking part to switch the state of the limiting abutment, the locking and unlocking of the nut locking part can be realized. The operation is simple and improves the user experience.

[0018] This utility model also provides a scooter, including the above-mentioned folding mechanism.

[0019] This utility model has the following beneficial effects: the connecting shaft assembly is partially set in the mounting hole on the nut locking part, and one end of the nut locking part is locked with the first folding seat. When the nut locking part is released from the first folding seat, it is only necessary to rotate the wrench locking part to drive the connecting shaft assembly to rotate, thereby triggering the limiting abutment part, realizing the release of the nut locking part from the first folding seat. During this process, the limiting abutment part is located between the mounting hole and the connecting shaft assembly, and the wrench locking part does not directly contact the nut locking part. Even after long-term use, the coating on the outer periphery of the nut locking part will not wear and rust due to the protruding structure on the wrench locking part (the protruding structure in the prior art has been eliminated in this solution), thus improving the service life of the nut locking part and solving the problem of easy wear and rust of the suspension bolts of the scooter in the prior art. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the folding mechanism provided in a specific embodiment of the present invention;

[0022] Figure 2 An exploded view of a folding mechanism provided in a specific embodiment of this utility model;

[0023] Figure 3 This is a structural schematic diagram of the non-limiting state of the abutment limiting part according to a specific embodiment of the present utility model;

[0024] Figure 4 A schematic diagram of the transition state of the abutment limiting part according to a specific embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the abutting and limiting part in a limiting state according to a specific embodiment of the present utility model.

[0026] The above figures include the following reference numerals:

[0027] 10. First folding seat; 11. Limiting slot; 12. Snap-fit ​​component; 20. Second folding seat; 21. Connecting shaft seat; 22. Rotating shaft seat; 30. Connecting shaft assembly; 31. Connecting shaft; 32. Eccentric wheel; 33. Reset component; 40. Nut locking part; 41. Mounting hole; 42. Limiting cap; 50. Wrench locking part; 51. Wrench body; 511. Slide rail; 52. Safety buckle; 53. Elastic retaining component; 54. Locking tongue; 60. Limiting abutment part; 61. Accommodating groove; 611. Limiting step structure; 62. Abutment protrusion; 70. Rotating shaft. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of the embodiments of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In the description of the embodiments of this utility model, it should also be noted that the terms "first" and "second" used herein do not specifically refer to any order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0035] The technical solution of this utility model will now be described with reference to the accompanying drawings.

[0036] To address the problem of wear and rust on the suspension bolts of existing scooters, this invention provides a folding mechanism and a scooter.

[0037] Folding mechanisms are widely used in foldable scooters to connect structural components that require both movable connections and locking. Of course, folding mechanisms are also suitable for other applications requiring folding besides scooters.

[0038] In some embodiments, such as Figures 1 to 5 As shown, the folding mechanism includes a first folding seat 10, a second folding seat 20, a connecting shaft assembly 30, a nut locking part 40 and a wrench locking part 50, a limiting abutment part 60, and a rotating shaft 70. The first folding seat 10 and the second folding seat 20 are used to connect two structural components that need to be folded. One end of the first folding seat 10 and the second folding seat 20 are pivotally connected via the rotating shaft 70; the other end of the first folding seat 10 and the second folding seat 20 is used for locking or unlocking.

[0039] To achieve the switching between locking and unlocking of the first folding seat 10 and the second folding seat 20, in some embodiments, such as Figures 1 to 5 As shown, one end of the nut locking part 40 and one end of the wrench locking part 50 are both connected to the second folding seat 20 via the connecting shaft assembly 30, and the other end of the nut locking part 40 and the other end of the wrench locking part 50 are locked to the first folding seat 10.

[0040] When the scooter needs to be folded and stored, simply release the lock between the wrench locking part 50 and the first folding seat 10, and rotate the wrench locking part 50. After the wrench locking part 50 is rotated to a preset angle, the rotation of the connecting shaft assembly 30 and the limiting abutment part 60 will unlock the nut locking part 40 from the first folding seat 10. At this time, the first folding seat 10 can rotate relative to the second folding seat 20 around the pivot 70, thereby realizing the folding and storage of the scooter.

[0041] The folding mechanism will be explained in detail below.

[0042] In some embodiments, such as Figure 2 As shown, the second folding seat 20 has a connecting shaft seat 21, and the connecting shaft assembly 30 is rotatably disposed on the connecting shaft seat 21. By providing the connecting shaft assembly 30, it can be ensured that both the nut locking part 40 and the wrench locking part 50 are connected to the connecting shaft assembly 30, but the connection methods of the nut locking part 40 and the wrench locking part 50 to the connecting shaft assembly 30 are different.

[0043] In some embodiments, such as Figures 2 to 5 As shown, the connecting end of the wrench locking part 50 is sleeved on the connecting shaft assembly 30 and rotates synchronously with the connecting shaft assembly 30. The ends of both the nut locking part 40 and the wrench locking part 50 away from the connecting shaft assembly 30 are used to lock the first folding seat 10. The nut locking part 40 has a mounting hole 41, and at least a portion of the connecting shaft assembly 30 is located within the mounting hole 41. By providing a limiting abutment part 60 between the mounting hole 41 and the connecting shaft assembly 30, after the wrench locking part 50 unlocks relative to the first folding seat 10 and flips open to a preset angle, the limiting abutment part 60 is triggered, causing the connecting shaft assembly 30 to drive the nut locking part 40 to rotate, thereby releasing the nut locking part 40 from locking the first folding seat 10.

[0044] Compared to the synchronous rotation of the wrench locking part 50 and the connecting shaft assembly 30, the connecting shaft assembly 30 can rotate at a certain angle relative to the nut locking part 40 and also drive the nut locking part 40 to rotate synchronously. This movement is mainly achieved by the limiting abutment part 60. When the nut locking part 40 is released from the first folding seat 10, the connecting shaft assembly 30 can be rotated simply by rotating the wrench locking part 50. After the wrench locking part 50 has rotated to a certain angle, it triggers the limiting abutment part 60, which transmits the rotational tendency of the connecting shaft assembly 30 to the nut locking part 40. This allows the connecting shaft assembly 30 to rotate with the nut locking part 40, thereby releasing the nut locking part 40 from the first folding seat 10.

[0045] During the above process, the limiting abutment part 60 is located between the mounting hole 41 and the connecting shaft assembly 30. The wrench locking part 50 does not directly contact the nut locking part 40. Even after long-term use, the coating on the outer periphery of the nut locking part 40 will not wear and rust due to the protruding structure on the wrench locking part 50 (the protruding structure in the prior art has been eliminated in this solution), thus improving the service life of the nut locking part 40.

[0046] In some embodiments, the preset angle is greater than 10 degrees and less than 45 degrees. By designing the preset angle between 10 degrees and 45 degrees, the triggering limit abutment 60 can be activated more quickly and effortlessly.

[0047] Specifically, this rotation angle allows the user to apply downward pressure to the wrench locking part 50. For example... Figure 1 As shown, the wrench locking part 50 remains vertical when the first folding seat 10 and the second folding seat 20 are in the locked state. When the wrench locking part 50 rotates 45 degrees, there is more operating space between the wrench locking part 50 and the first folding seat 10, which facilitates unlocking operations and the application of force. Of course, it is sufficient to ensure that the force is ultimately transmitted to the nut locking part 40 through the connecting shaft assembly 30.

[0048] To allow the connecting shaft assembly 30 and the nut locking part 40 to switch between relative and synchronous rotation, the limiting abutment part 60 has a limiting state and a non-limiting state. When the limiting abutment part 60 is in the limiting state, the connecting shaft assembly 30 drives the nut locking part 40 to rotate synchronously. When the limiting abutment part 60 is in the non-limiting state, the connecting shaft assembly 30 and the nut locking part 40 can rotate relative to each other. By operating the wrench locking part 50 to switch the state of the limiting abutment part 60, the nut locking part 40 can be locked and unlocked. The operation is simple and improves the user experience.

[0049] Since the main purpose of this utility model is to provide a technical solution to reduce damage and corrosion of the nut locking part 40, in addition to changing the position of the limiting abutment part 60, the specific structural improvement of the folding mechanism is also very important.

[0050] In some embodiments, such as Figures 2 to 5 As shown, the connecting shaft assembly 30 includes a connecting shaft 31, an eccentric wheel 32, and a reset member 33. The connecting end of the wrench locking part 50 is sleeved on the connecting shaft 31 and rotates synchronously with the connecting shaft assembly 30. Figure 3As shown, the connecting shaft 31 is a flat shaft. Therefore, the connecting end of the wrench locking part 50 is sleeved on the flat shaft, which ensures that the wrench locking part 50 rotates synchronously with the connecting shaft 31. The connecting shaft 31 passes through the connecting shaft seat 21 and the eccentric wheel 32, and the rotating shaft 70 passes through the rotating shaft seat 22 to connect the first folding seat 10 and the second folding seat 20. The connecting shaft seat 21 and the rotating shaft seat 22 are arranged on the second folding seat 20, and the two are located on the same straight line, so that one end of the first folding seat 10 and the second folding seat 20 forms a locking end, and the other end forms a pivoting end.

[0051] Furthermore, the two ends of the reset member 33 abut against the second folding seat 20 and the nut locking part 40, respectively. By providing the reset member 33, the nut locking part 40 can be reset, simplifying the operation steps and saving time when folding or opening the folding mechanism. Figure 3 For example, the reset component 33 is mainly used to keep the nut locking part 40 in place. Figure 3 The counter-clockwise rotation trend ensures that the nut locking part 40 remains close to the first folding seat 10 and locked when the wrench locking part 50 is not pressed down. The process of pressing down the wrench locking part 50 to unlock the nut locking part 40 from the first folding seat 10 involves overcoming the work of the reset member 33. Therefore, once the external force disappears, the reset member 33 can quickly reset the nut locking part 40, causing the limiting abutment part 60 to return to its initial state, and causing relative movement between the connecting shaft assembly 30 and the nut locking part 40 again, rather than continuing synchronous movement.

[0052] In some embodiments, such as Figures 2 to 5 As shown, the connecting shaft 31 connects the wrench locking part 50 and the eccentric wheel 32, enabling the wrench locking part 50 to rotate, thereby driving the eccentric wheel 32 to rotate and triggering the limiting abutment part 60 to release the locking state of the nut locking part 40. The eccentric wheel 32 is eccentrically mounted on the connecting shaft 31 and can be accommodated in the mounting hole 41. The limiting abutment part 60 is located at the mating point between the eccentric wheel 32 and the mounting hole 41.

[0053] In some embodiments, such as Figure 2 As shown, the connecting shaft seat 21 consists of two extending arms with pre-drilled holes to allow the connecting shaft 31 to pass through. The eccentric wheel 32 and the nut locking part 40 are positioned between the two extending arms, which not only ensures the stability of the assembly but also reduces the probability of damage or corrosion to the mounting hole 41 by shielding and limiting the abutment part 60 through the two extending arms.

[0054] In some embodiments not shown, the inner wall of the mounting hole 41 is coated with a wear-resistant layer.

[0055] In some embodiments, the limiting abutment portion 60 is disposed at the distal end of the eccentric wheel 32. The limiting abutment portion 60 is disposed close to the second folding seat 20 relative to the first folding seat 10. By disposing the limiting abutment portion 60 close to the second folding seat 20, the space of the folding mechanism can be utilized efficiently. At the same time, placing the limiting abutment portion 60 at the distal end of the eccentric wheel 32 can also increase the torque, making it easier to unlock. Structurally, being located at the distal end of the eccentric wheel 32, the wall thickness of the structure is relatively thick, providing sufficient strength. This not only facilitates the placement of the limiting abutment portion 60 but also effectively ensures the overall structural strength.

[0056] In addition to the aforementioned changes to the position of the limiting contact part 60 and the specific structural improvements to the folding mechanism, the specific arrangement of the limiting contact part 60 is also a significant improvement.

[0057] In some embodiments, such as Figures 2 to 3 As shown, the limiting abutment portion 60 includes a limiting step structure 611 disposed on the wall of the mounting hole 41 and an abutment protrusion 62 disposed on the eccentric wheel 32. The abutment protrusion 62 extends radially along the eccentric wheel 32 and can contact or disengage from the limiting step structure 611. When the abutment protrusion 62 contacts and stops the limiting step structure 611, the nut locking portion 40 can rotate synchronously with the eccentric wheel 32. When the abutment protrusion 62 disengages from the limiting step structure 611, the eccentric wheel 32 rotates relative to the nut locking portion 40.

[0058] It should be noted that, with Figure 3 For example, the limiting step structure 611 is a relatively important structure. Especially when the abutting protrusion 62 contacts the limiting step structure 611, the rotation tendency of the eccentric wheel 32 can be transmitted to the limiting step structure 611 through the abutting protrusion 62, thereby causing the nut locking part 40 to rotate together.

[0059] Therefore, due to the change in the position of the abutting protrusion 62, the positional relationship between the abutting protrusion 62 and the limiting step structure 611 also changes, thereby affecting the state of the nut locking part 40.

[0060] In some embodiments, such as Figures 2 to 3 As shown, a receiving groove 61 is provided on the wall of the mounting hole 41. The receiving groove 61 extends a predetermined length circumferentially along the mounting hole 41, and a limiting step structure 611 is formed on the groove wall surface in the extending direction. The abutting protrusion 62 extends radially along the eccentric wheel 32 and into the receiving groove 61. By opening the receiving groove 61 in the mounting hole 41, the abutting protrusion 62 extends radially along the eccentric wheel 32.

[0061] Specifically, the limiting step structure 611 is located on one side of the receiving groove 61. When the wrench locking part 50 rotates, it drives the connecting shaft 31, which in turn drives the eccentric wheel 32 to rotate. The abutting protrusion 62 moves within the receiving groove 61. After rotating by a preset angle, the abutting protrusion 62 abuts against the limiting step structure 611, thereby driving the nut locking part 40 to rotate. It should be noted that when the abutting protrusion 62 is not abutting against the limiting step structure 611, even if the eccentric wheel 32 rotates, it is merely "idling" and will not drive the nut locking part 40 to rotate.

[0062] In some embodiments, the abutment protrusion 62 has a first limiting position and a non-limiting position. Figure 4 and Figure 5 For example, when the abutment protrusion 62 is in the first limiting position, the limiting abutment part 60 presses against the groove wall of the receiving groove 61, so that the connecting shaft assembly 30 can drive the nut locking part 40 to rotate together. When the abutment protrusion 62 is in the non-limiting position, the limiting abutment part 60 releases pressure from the groove wall of the receiving groove 61, and the connecting shaft assembly 30 can rotate relative to the nut locking part 40. By moving the abutment protrusion 62 in the first limiting position and the non-limiting position, the switching between the unlocked state and the locked state of the nut locking part 40 is realized. The structure is simple and easy for users to operate.

[0063] In some embodiments, the abutment protrusion 62 also has a second limiting position. It should be noted that the second limiting position is not necessarily necessary for the actual unlocking process of the locking part 40 of the nut. Figure 3 For example, when the abutment protrusion 62 is in the second limiting position, the abutment protrusion 62 disengages from the limiting step structure 611. The limiting abutment portion stops against the groove wall on the other side of the receiving groove 61, thus preventing over-movement. However, the second limiting position is not necessary; that is, the receiving groove 61 does not necessarily need to be in the second limiting position. Figure 3 Similarly, the right sidewall of the groove must be provided.

[0064] In one illustrated embodiment, only the left sidewall of the receiving groove 61 may be included as the limiting step structure 611, while the right sidewall of the receiving groove 61 (to...) may be included as the limiting step structure 611. Figure 3 (For reference) The groove extends to the wall surface of the mounting hole 41, meaning that the "stop step" is no longer present on the right side of the receiving groove 61, and the second limiting position mentioned above is no longer present. At this time, the receiving groove 61 does not look like a groove structure, but rather like a recess with a limiting step structure 611 on one side, formed on the wall surface of the mounting hole 41. In other words, a limiting step structure 611 is provided at one end of the receiving groove 61, and the other end of the receiving groove 61 smoothly transitions to the wall surface of the mounting hole 41.

[0065] In addition to the aforementioned location of the receiving groove 61, various alternative implementation methods can be achieved by changing the installation positions of the receiving groove 61 and the abutting protrusion 62.

[0066] In some embodiments not shown, a receiving groove 61 is provided on the eccentric wheel 32, and an abutment protrusion 62 is provided on the mounting hole 41.

[0067] In some embodiments, such as Figures 2 to 5 As shown, the wrench locking part 50 includes a wrench body 51, a safety catch 52, and a resilient retainer 53. A slide rail 511 is provided on the wrench body 51. The safety catch 52 is slidably disposed in the slide rail 511 and has a locking tongue 54 for locking the first folding seat 10. When the safety catch 52 is locked to the first folding seat 10, the safety catch 52 is at the end of the slide rail 511. The resilient retainer 53 is disposed on the wrench body 51 and presses against the safety catch 52, so that the safety catch 52 has a retaining force that keeps it at the end of the slide rail 511. By locking the locking tongue 54 on the safety catch 52 to the first folding seat 10, the wrench body 51 is prevented from being accidentally opened. The resilient retainer 53 prevents the safety catch 52 from sliding within the slide rail 511, causing the locking tongue 54 to disengage from the first folding seat 10, thus improving the safety of the folding mechanism.

[0068] Specifically, one end of the wrench body 51 is connected to the connecting shaft seat 21 via the connecting shaft 31, and the other end is provided with a slide rail 511. The safety catch 52 and the locking tongue 54 are located on opposite sides of the wrench body 51. The locking tongue 54 is positioned close to the first folding seat 10, which has a locking member 12. A gap is formed between the locking member 12 and the first folding seat 10, and the locking tongue 54 partially extends into this gap, thereby locking the wrench body 51 to the first folding seat 10. To ensure the locking effect, the elastic retaining member 53 presses against the safety catch 52, thus ensuring the engagement between the locking tongue 54 and the locking member 12.

[0069] In some embodiments not shown, the reset member 33 is a torsion spring or a retaining spring. The elastic retainer 53 is a spring.

[0070] In some embodiments, such as Figure 2 As shown, the first folding seat 10 is also provided with a limiting groove 11, and the top of the nut locking part 40 is also provided with a limiting cap 42, so as to ensure that the nut locking part 40 is engaged with the limiting groove 11.

[0071] Specifically, the usage steps of this utility model are as follows: the first folding seat 10 and the second folding seat 20 are locked by the nut locking part 40 and the wrench locking part 50, as detailed below. Figure 3As shown. When the scooter needs to be stored, the safety buckle 52 is slid upwards within the slide rail 511 by the finger, thereby disengaging the locking tongue 54 from the gap between the latch 12 and the first folding seat 10; then, the lever body 51 is pressed downwards, causing the eccentric wheel 32 to rotate via the connecting shaft 31. Since the abutment protrusion 62 does not abut against the limiting step structure 611 at this time, only the eccentric wheel 32 rotates, and the nut locking part 40 remains stationary, as detailed below. Figure 4 As shown; when the wrench body 51 rotates to a preset angle, the abutment protrusion 62 abuts against the limiting step structure 611, thereby causing the nut locking part 40 to disengage from the limiting slot 11 under the action of the wrench body 51, completing the unlocking, as shown in the details. Figure 5 As shown, the first folding seat 10 and the second folding seat 20 are connected only by the pivot 70, so the scooter is folded and stored.

[0072] This utility model has the following beneficial effects: The connecting shaft assembly 30 is partially set in the mounting hole 41 on the nut locking part 40, and one end of the nut locking part 40 is locked with the first folding seat 10. When the nut locking part 40 and the first folding seat 10 are unlocked, the connecting shaft assembly 30 can be rotated by rotating the wrench locking part 50, thereby triggering the limiting abutment part 60, so that the nut locking part 40 and the first folding seat 10 are unlocked. During this process, the limiting abutment part 60 is located between the mounting hole 41 and the connecting shaft assembly 30, and the wrench locking part 50 does not directly press against the nut locking part 40. Even after long-term use, the coating on the outer periphery of the nut locking part 40 will not wear and rust due to the protruding structure on the wrench locking part 50, thus improving the service life of the nut locking part 40.

[0073] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0074] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A folding mechanism, characterized by, include: First folding seat; A second folding seat, the second folding seat having a connecting shaft seat; A connecting shaft assembly, which is rotatably disposed on the connecting shaft seat; A nut locking part having a mounting hole, at least a portion of the connecting shaft assembly being located within the mounting hole; A wrench locking part, the connecting end of which is sleeved on the connecting shaft assembly and rotates synchronously with the connecting shaft assembly; the nut locking part and the end of the wrench locking part away from the connecting shaft assembly are both used to lock the first folding seat. A limiting abutment is provided between the mounting hole and the connecting shaft assembly. After the wrench locking part is unlocked relative to the first folding seat and flipped open to a preset angle, the limiting abutment is triggered to cause the connecting shaft assembly to drive the nut locking part to rotate, so that the nut locking part releases the lock on the first folding seat.

2. The folding mechanism of claim 1, wherein, The preset angle is greater than 10 degrees and less than 45 degrees.

3. The folding mechanism of claim 1, wherein, The connecting shaft assembly includes: A connecting shaft, wherein the connecting end of the wrench locking part is sleeved on the connecting shaft and rotates synchronously with the connecting shaft assembly; An eccentric wheel is eccentrically disposed on the connecting shaft and can be accommodated in the mounting hole. The limiting abutment is disposed at the mating point between the eccentric wheel and the mounting hole.

4. The folding mechanism of claim 3, wherein The connecting shaft assembly also includes a reset member, the two ends of which abut against the second folding seat and the nut locking part, respectively.

5. The folding mechanism of claim 3, wherein, The limiting abutment is located at the distal end of the eccentric wheel; and / or the limiting abutment is located near the second folding seat relative to the first folding seat.

6. The folding mechanism of claim 3, wherein, The limiting abutment part includes: A limiting step structure is provided at the hole wall of the mounting hole; An abutting protrusion extends radially along the eccentric wheel and can contact or disengage from the limiting step structure. When the abutting protrusion contacts and stops the limiting step structure, the nut locking part can rotate synchronously with the eccentric wheel. When the abutting protrusion disengages from the limiting step structure, the eccentric wheel rotates relative to the nut locking part.

7. The folding mechanism of claim 6, wherein, The mounting hole has a receiving groove on its wall. The receiving groove extends a predetermined length along the circumference of the mounting hole, and the receiving groove has a limiting step structure on its wall surface in the extending direction. The abutting protrusion extends radially along the eccentric wheel and extends into the receiving groove.

8. The folding mechanism of claim 7, wherein, The abutting protrusion has a first limiting position and a non-limiting position; When the abutting protrusion is in the first limiting position, the limiting abutting part abuts against the groove wall of the receiving groove, so that the connecting shaft assembly can drive the nut locking part to rotate together; When the abutting protrusion is in the non-limited position, the limiting abutting part is released from pressure against the groove wall of the receiving groove, and the connecting shaft assembly can rotate relative to the nut locking part.

9. The folding mechanism of claim 8, wherein, The abutting protrusion also has a second limiting position; When the abutting protrusion is in the second limiting position, the nut locking part is in the position of locking the first folding seat, and the limiting abutting part stops the groove wall on the other side of the receiving groove.

10. The folding mechanism according to any one of claims 1 to 9, characterized in that, The wrench locking part includes: The wrench body has a sliding track on it; A safety buckle is slidably disposed at the slide rail, the safety buckle having a locking tongue for locking the first folding seat, and the safety buckle being at the end of the slide rail when locked with the first folding seat; An elastic retainer is disposed on the wrench body and presses against the safety buckle so that the safety buckle has a retaining force that holds it at the end of the slide.

11. The folding mechanism according to any one of claims 1 to 9, characterized in that The limiting abutment part has a limiting state and a non-limiting state. When the limiting abutment part is in the limiting state, the connecting shaft assembly drives the nut locking part to rotate synchronously; When the limiting abutment part is in the non-limited state, the connecting shaft assembly and the nut locking part can rotate relative to each other.

12. A scooter, characterized in that, Includes the folding mechanism according to any one of claims 1 to 11.

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