Folding joint and folding bicycle

Abstract

The utility model relates to a folding joint and a folding bicycle, and the folding joint comprises a first joint and a second joint which are rotatably connected to switch between a folding state and a separating state; the guide block is arranged on the first joint; the locking piece comprises a penetrating rod and a locking block which are connected, and the penetrating rod is arranged on the guide block in a sliding mode in the first direction; the elastic piece is arranged between the guide block and the locking block in the first direction; in the process that the two connectors are switched from the separation state to the folding state, the second connector abuts against the locking piece to enable the elastic piece to deform, and the locking piece moves in the first direction relative to the guide block. The second connector is provided with a matching part, when the two connectors are in a closed state, the locking piece resets under the action of the elastic piece and is matched with the matching part to limit the separation of the two connectors, and the locking piece can be operably switched between a first state for limiting the separation of the two connectors and a second state for locking the two connectors.

Description

Technical Field

[0001] The utility model relates to the technical field of folding, in particular to a folding joint and a folding bicycle. Background Art

[0002] Vehicles play an important role in people's daily lives. For example, bicycles can not only be used as environmentally friendly means of transportation for commuting and traveling, but more and more people also use bicycles as fitness equipment for cycling exercise or traveling.

[0003] Folding bikes have become popular for easy storage and portability. Folding bikes require a folding joint to switch between a folded and unfolded (non-folded) state. However, when the bike is unfolded, the two joints of the folding joint may accidentally open (separate) (e.g., due to accidental contact by the rider or due to the locking block of the folding joint not being locked). This could cause the safety lock to be released, potentially creating a safety hazard. Utility Model Content

[0004] Based on this, it is necessary to provide a folding joint and a folding bicycle that can improve the above problems.

[0005] A folding joint, comprising:

[0006] A first joint and a second joint, the two joints being rotatably connected to switch between a closed state and a separated state;

[0007] a guide block provided on the first joint;

[0008] The locking member comprises a connecting rod and a locking block, wherein the connecting rod is slidably arranged on the guide block along a first direction;

[0009] an elastic member disposed between the guide block and the locking block along the first direction; when the two joints switch from the separated state to the closed state, the second joint presses against the locking member to deform the elastic member, and the locking member moves relative to the guide block along the first direction;

[0010] The second connector is provided with a mating portion. When the two connectors are in the closed state, the locking member is reset under the action of the elastic member and cooperates with the mating portion to limit the separation of the two connectors. The locking member can be operated to switch between a first state that limits the separation of the two connectors and a second state that locks the two connectors.

[0011] In one embodiment, the mating portion is a mating hole provided on the second connector and extending along the first direction;

[0012] When the two connectors switch from the separated state to the closed state, the second connector presses against the end of the penetration rod and the elastic member is compressed and deformed; when the two connectors are in the closed state, the end of the penetration rod enters the matching hole.

[0013] In one embodiment, the second joint is provided with a first guide surface;

[0014] During the process of switching the two connectors from the separated state to the closed state, the second connector presses and guides the end of the penetration rod through the first guide surface; when the two connectors are in the closed state, the end of the penetration rod is guided into the matching hole by the first guide surface.

[0015] In one embodiment, the penetration rod is a screw rod, and the locking block is screwed to the penetration rod;

[0016] The two connectors are both provided with a locking portion cooperating with the locking block, and the other end of the locking block in contact with the elastic member abuts against the first connector;

[0017] The penetration rod is operable to rotate circumferentially relative to the guide block, and the locking block moves axially along the penetration rod under the limiting action of the first joint, so as to cooperate with the locking part to lock the two joints in the second state or lock with the locking part in the first state.

[0018] In one embodiment, the matching portion is formed on the locking portion;

[0019] During the process of switching the two connectors from the separated state to the closed state, the second connector presses against the locking block corresponding to the elastic member; when the two connectors are in the closed state, the locking block cooperates with the locking portion to limit the separation of the connectors.

[0020] In one embodiment, a second guide surface is provided on the second joint, and the second joint is pressed and guided by the second guide surface to the locking block until it cooperates with the locking portion to restrict the joint; and / or

[0021] The locking block is provided with a third guide surface, the second connector presses against the third guide surface, and the third guide surface guides the locking block until it cooperates with the matching portion to restrict the connector.

[0022] In one embodiment, the locking member includes two locking blocks, both of which are screwed to the penetrating rod in opposite directions; the elastic member is compressed and arranged between one of the locking blocks and the guide block;

[0023] The two joints are respectively provided with the locking parts matched with the two locking blocks.

[0024] In one embodiment, the locking portion is a first groove provided inside the joint, and the locking block has two flanges that cooperate with the first groove.

[0025] In one embodiment, the elastic member is a spring, which is sleeved on the penetration rod and located between the guide block and the locking block.

[0026] A folding bicycle comprises a bicycle body and the above-mentioned folding joint, wherein the folding joint is connected to the bicycle body and is used for switching the bicycle body between a folded state and an unfolded state.

[0027] In the above-mentioned folding joint, during the process of the two joints switching from the separated state to the closed state, the second connecting plate can press against the locking member to cause the elastic member to elastically deform and store energy. When the elastic member is elastically deformed, the locking member moves along the first direction relative to the guide block. When the two joints are in the closed state, the elastic recovery of the elastic member can provide a reset force to the locking member, prompting the locking member to cooperate with the matching portion to limit the separation of the two joints. At this time, the locking member is in the first state. By operating the locking member to switch from the first state to the second state, the two joints can be finally locked. It can be seen that the folding joint provided in this application, when the locking member is subjected to an external force (such as the rider touching the locking member) to switch from the second state to the first state, the locking member still cooperates with the matching portion in the first state to make the two joints inseparable, which plays a role of safety insurance. At the same time, the folding joint in this application achieves the purpose of quickly locking the two joints because the locking member can cooperate with the matching portion to limit the separation of the two joints before the two joints are locked. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A structural diagram of two joints of a folding joint provided in an embodiment of the present application in a separated state;

[0029] Figure 2 for Figure 1 A structural diagram of another perspective of the folded joint shown in ;

[0030] Figure 3 for Figure 1 A structural diagram of the folding joint shown in FIG when the two joints are in a closed state;

[0031] Figure 4 for Figure 3 A bottom view of the folding joint shown in ;

[0032] Figure 5 for Figure 4 A cross-sectional view of the AA plane of the folded joint shown in ;

[0033] Figure 6 A structural diagram of two joints of a folding joint provided in another embodiment of the present application in a separated state;

[0034] Figure 7 for Figure 6 Exploded view of the folded joint shown in .

[0035] Description of reference numerals:

[0036] 100. Folding joint; 10. First joint; 11. First rod; 12. First connecting plate; 121. Locking portion; 122. Accommodating groove; 123. Through-hole; 20. Second joint; 21. Second rod; 22. Second connecting plate; 221. First guide surface; 222. Second guide surface; 30. Guide block; 40. Locking member; 41. Through-rod; 42. Locking block; 421. Flange; 422. Third guide surface; 50. Elastic member; 60. Fitting portion; 61. Fitting hole; 70. Operating handle. DETAILED DESCRIPTION

[0037] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0040] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0042] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0043] One embodiment of the present application provides a foldable bicycle comprising a bicycle body and a folding joint 100. The folding joint 100 is connected to the bicycle body and is used to switch the bicycle body between a folded state and an unfolded state. When the bicycle body is in the folded state, it is convenient for carrying and storage; when the bicycle body is in the unfolded state, it is convenient for the rider to ride.

[0044] Optionally, the folding bicycle may be a bicycle. Bicycles are not limited to mountain bikes, road bikes, and electric bicycles. The folding bicycle may also be a tricycle or a motorcycle.

[0045] See Figure 1 and Figure 2The folding joint 100 includes a first joint 10 and a second joint 20. The vehicle body includes a first portion and a second portion, with the first joint 10 connected to the first portion and the second joint 20 connected to the second portion. One side of the two joints is rotationally connected, that is, the first joint 10 is rotationally connected to one side of the second joint 20. Because the two joints are rotationally connected, when the two joints rotate, they can switch between a closed state and a separated state. That is, when one side of the two joints rotates, the other side can separate or close, allowing the two joints to switch between a closed state and a separated state. When the two joints are in the closed state, the vehicle body is unfolded; when the two joints are in the separated state, the vehicle body is folded.

[0046] In some embodiments, the first joint 10 includes a first rod 11 and a first connecting plate 12 connected to each other, and the first rod 11 is connected to the first part. The first rod 11 and the first connecting plate 12 can be fixed by welding or the two can be formed as one piece. The second joint 20 includes a second rod 21 and a second connecting plate 22 connected to each other, and the second rod 21 is connected to the second part. The second rod 21 and the second connecting plate 22 can be fixed by welding or the two can be formed as one piece. The first connecting plate 12 is hinged to one side of the second connecting plate 22, and the other side of the first connecting plate 12 and the second connecting plate 22 can be closed or separated, so that the two joints are in a closed state (see Figure 3 and Figure 4 ) and the separation state (see Figure 1 and Figure 2 )

[0047] It is understandable that in other embodiments, the first joint 10 may omit the first rod 11, in which case the first connecting plate 12 is directly connected to the first part, and the second joint 20 may omit the second rod 21, in which case the second connecting plate 22 is directly connected to the second part.

[0048] It is worth noting that in the present application, there is no limitation on the shapes of the first connecting plate 12 and the second connecting plate 22. For example, in some specific embodiments, the cross-sectional shapes of the first connecting plate 12 and the second connecting plate 22 can be set to be elliptical, circular and rectangular. In other specific embodiments, the cross-sectional shapes of the first connecting plate 12 and the second connecting plate 22 can also be set to be irregular shapes.

[0049] Continue reading Figure 1 and Figure 2 , and see Figure 5The folding joint 100 further includes a guide block 30 and a locking member 40. The guide block 30 is disposed on the first connecting plate 12. The locking member 40 is connected to the guide block 30. The guide block 30 is used to guide the locking member 40 along the first direction. Specifically, the locking member 40 includes a penetrating rod 41 and a locking block 42. The penetrating rod 41 is slidably disposed on the guide block 30 along the first direction. The locking block 42 is connected to the penetrating rod 41. The guide block 30 is used to guide the penetrating rod 41 and the locking block 42 along the first direction.

[0050] The folding joint 100 further includes an elastic member 50, which is disposed along the first direction between the guide block 30 and the locking block 42. Optionally, the elastic member 50 is a spring, which is sleeved outside the penetrating rod 41 and positioned between the guide block 30 and the locking block 42. Of course, in other embodiments, the type of the elastic member 50 is not limited; for example, the elastic member 50 may also be an elastic rubber member.

[0051] During the transition between the two connectors from the separated state to the closed state, the second connecting plate 22 presses against the locking member 40, causing the elastic member 50 to elastically deform and store energy, causing the locking member 40 to move in the first direction relative to the guide block 30. A mating portion 60 is provided on the second connecting plate 22. When the two connectors are in the closed state, the locking member 40, under the action of the elastic member 50, returns to its original position and engages with the mating portion 60 to prevent the two connectors from separating. The locking member 40 is operable to switch between a first state that prevents the two connectors from separating and a second state that locks the two connectors.

[0052] It should be noted here that when the locking member 40 is in the first state, the two joints cannot be separated. At this time, the two joints are also locked, but the degree of locking of the two joints in the first state is weaker than that in the second state, that is, the first state is a pre-locking state (initial locking state), and the second state is a final locking state.

[0053] In the above-mentioned folding joint 100, during the process of the two joints switching from the separated state to the closed state, the second connecting plate 22 can press the locking member 40 to cause the elastic member 50 to elastically deform and store energy. When the elastic member 50 elastically deforms, the locking member 40 moves in the first direction relative to the guide block 30. When the two joints are in the closed state, the elastic recovery of the elastic member 50 can provide a reset force to the locking member 40, prompting the locking member 40 to cooperate with the matching portion 60 to limit the separation of the two joints. At this time, the locking member 40 is in the first state. By operating the locking member 40 to switch from the first state to the second state, the two joints can be finally locked. It can be seen that in the folding joint 100 provided in this application, when the locking member 40 is subjected to an external force (such as a rider touching the locking member 40) to switch from the second state to the first state, the locking member 40 still cooperates with the matching portion 60 in the first state to make the two joints inseparable, thereby playing a safety role. At the same time, the folding joint 100 in the present application achieves the purpose of quickly locking the two joints because the locking member 40 can cooperate with the matching portion 60 to limit the separation of the two joints before the two joints are locked.

[0054] It should be noted that when the locking member 40 is in the first state, operating the locking member 40 causes the elastic member 50 to elastically deform, and the locking member 40 moves along the first direction relative to the guide block 30 to disengage from the mating portion 60 to achieve separation of the two connectors.

[0055] In some embodiments, see Figure 1 and Figure 2 The penetration rod 41 is a screw, and the locking block 42 is threadedly connected to the penetration rod 41. In this case, the first direction is the axial direction of the penetration rod 41. The guide block 30 and the locking block 42 are both located at the end of the first connecting plate 12 that is used to close with the second connecting plate 22. The elastic member 50 is compressed and disposed between the locking block 42 and the guide block 30.

[0056] Both connecting plates are provided with a locking portion 121 that cooperates with the locking block 42. The other end of the locking block 42, which contacts the elastic member 50, abuts the first connecting plate 12. The penetration rod 41 is operable to rotate circumferentially relative to the guide block 30. The locking block 42, limited by the first connecting plate 12, moves axially along the penetration rod 41 to cooperate with the locking portion 121 to lock the two joints in the second state, or to release the locking portion 121 in the first state.

[0057] With the above arrangement, when the two connectors are in the separated state, the locking block 42 in contact with the elastic member 50 abuts against the first connecting plate 12 under the elastic force of the elastic member 50. At the same time, the locking member 40 remains fixed to the first connecting plate 12 under the action of the elastic member 50. When the two connectors switch from the separated state to the closed state, the second connecting plate 22 presses against the locking member 40, and the elastic member 50 elastically deforms, causing the locking member 40 to move in the first direction (the axial direction of the penetration rod 41) relative to the guide block 30. When the two connectors are in the closed state, the locking member 40 is reset under the action of the elastic member 50 and cooperates with the mating portion 60 to restrict the separation of the two connectors. Rotating the penetration rod 41 forward causes the locking block 42 to move away from the guide block 30 along the axial direction of the penetration rod 41. When the penetration rod 41 is rotated until the locking member 40 is in the second state, the locking block 42 cooperates with the locking portion 121 to lock the two connectors. It should be noted that when the locking member 40 needs to be switched from the second state to the first state, this can be achieved by rotating the penetration rod 41 in the reverse direction.

[0058] It is understood that in other embodiments, the positions of the guide block 30 and the locking block 42 are not limited. For example, the locking block 42 can also be located outside the end of the first connecting plate 12 that is used to close with the second connecting plate 22. In this case, the locking block 42 locks the two joints when it moves closer to the guide block 30, and loosens the joints when it moves away from the guide block 30. At the same time, there is no limitation on the type of the penetration rod 41. For example, the penetration rod 41 can be fixedly connected to the locking block 42, and the penetration rod 41 can drive the locking block 42 to rotate synchronously. The setting of the locking member 40 only needs to ensure that it cooperates with the matching portion 60 to restrict the separation of the two joints in the first state, and cooperates with the locking portion 121 to lock the two joints in the second state.

[0059] For further information, see Figure 6 and Figure 7 The first connecting plate 12 and the second connecting plate 22 are both provided with an accommodating groove 122. The locking portion 121 is a first groove provided on the side wall of the accommodating groove 122. The locking block 42 has a flange 421 that cooperates with the two first grooves for locking.

[0060] The guide block 30 and locking block 42 are both positioned within the receiving groove 122. Optionally, both connecting plates are provided with a half-hole 123 communicating with the receiving groove 122. The penetration rod 41 penetrates the half-hole 123 of the first connecting plate 12. When the two connectors are in the closed state, the guide block 30 and locking block 42 are accommodated within the receiving groove 122 of the second connecting plate 22. The half-holes 123 of the two connectors are spliced ​​to form a penetration hole. The penetration rod 41 is positioned within the penetration hole. The locking member 40 cooperates with the mating portion 60 to prevent the two connectors from separating. When the penetration rod 41 is rotated forward, the locking block 42 moves away from the guide block 30 in the first direction. The flange 421 contacts the wall of the first groove, tightly locking the two connectors. When the penetration rod 41 is rotated in the reverse direction, the locking block 42 moves toward the guide block 30 along the first direction, and the flange 421 is separated from the groove wall of the first groove or the flange 421 is separated from the groove wall of the first groove, so that the locking member 40 is in the first state again.

[0061] It is conceivable that in other embodiments, a second groove may be provided on the locking block 42, and the locking portion 121 is a convex portion provided on the side wall of the accommodating groove 122. The two convex portions can be accommodated in the second groove, and the two joints are locked by the cooperation between the convex portion and the second groove.

[0062] In other embodiments, there is no limitation on the specific configuration of the locking block 42 and the locking portion 121 , as long as the locking block 42 and the locking portion 121 can cooperate with each other to lock the two joints.

[0063] Preferably, the locking member 40 includes two locking blocks 42, both of which are screwed to the through rod 41 in opposite directions, and the elastic member 50 is compressed and arranged between one of the locking blocks 42 and the guide block 30. The two joints are respectively provided with two locking parts 121 that cooperate with the locking blocks 42. Figure 6 and Figure 7 When the locking member 40 is in the first state, the through-rod 41 is rotated forward, and the upper and lower locking blocks 42 move away from each other in the first direction, thereby locking the two joints. When the through-rod 41 is rotated backward, the upper and lower locking blocks 42 move toward each other in the first direction, thereby unlocking the two joints. By providing the locking member 40 with two locking blocks 42, the locking effect of the locking joint can be guaranteed.

[0064] In some embodiments, see Figure 1 and Figure 2 The mating portion 60 is a mating hole 61 provided on the second connecting plate 22, and the mating hole 61 extends along the first direction. When the two joints switch from the separated state to the closed state, the second connecting plate 22 presses against the end of the penetrating rod 41. Figure 5When the two connectors are in the closed state, the end of the penetrating rod 41 extends into the matching hole 61. With this arrangement, when the locking member 40 is accidentally touched and unlocked, the connector will not open because the penetrating rod 41 is located in the matching hole 61. The penetrating rod 41 needs to be pulled out of the matching hole 61 to open the connector.

[0065] Further, see Figure 1 、 Figure 2 and Figure 5 The second connecting plate 22 is provided with a first guide surface 221. When the two joints are switched from a separated state to a closed state, the second connecting plate 22 presses against and guides the end of the penetration rod 41 via the first guide surface 221. When the two joints are in the closed state, the end of the penetration rod 41 is guided into the mating hole 61 by the first guide surface 221. The provision of the first guide surface 221 facilitates guiding the penetration rod 41 into the mating hole 61, allowing the penetration rod 41 to cooperate with the mating hole 61 to prevent the two joints from separating.

[0066] It is conceivable that the first guide surface 221 may be omitted from the second connecting plate 22 , and instead an inclined surface may be provided at the end of the penetration rod 41 to guide the end of the penetration rod 41 into the fitting hole 61 .

[0067] Furthermore, the locking member 40 includes an operating handle 70. The penetrating rod 41 includes a first end and a second end that are connected to each other. The end of the first end can be inserted into the mating hole 61. The operating handle 70 is connected to the end of the second end that is distal to the first end. The operating handle 70 can be used to rotate the penetrating rod 41 forward and reverse, thereby locking or unlocking the joint. The operating handle 70 can also be used to remove the penetrating rod 41 from the mating hole 61, thereby separating the two joints.

[0068] In other embodiments, see Figure 6 and Figure 7 The mating portion 60 is formed on the locking portion 121. During the transition between the two connectors from the separated state to the closed state, the second connecting plate 22 presses against the locking block 42 corresponding to the elastic member 50. When the two connectors are in the closed state, the locking block 42 cooperates with the locking portion 121 to prevent the two connectors from separating. By forming the mating portion 60 directly on the locking portion 121, the structural design of the second connecting plate 22 can be simplified compared to a scenario where the mating portion 60 is formed elsewhere on the second connecting plate 22.

[0069] In some specific embodiments, the locking portion 121 is a V-shaped groove provided on the second connecting plate 22, and the open portion of the V-shaped groove serves as the mating portion 60. Of course, in other embodiments, when the structure of the locking portion 121 changes, the position of the mating portion 60 on the locking portion 121 can also be changed accordingly.

[0070] Optionally, the locking block 42 ( Figure 6 An elastic member 50 is installed between the upper locking block 42 and the guide block 30. No elastic member 50 is installed between the other locking block 42 and the guide block 30. When the two joints are closed, the upper locking block 42 enters the V-shaped groove, preventing the two joints from separating. This arrangement prevents the joints from opening if the locking member 40 is accidentally unlocked due to the flange 421 of the locking block 42 being located in the V-shaped groove. The joints will not open unless the operating handle 70 is pressed downward.

[0071] Alternatively, the locking block 42 ( Figure 6 An elastic member 50 is installed between the lower locking block 42 and the guide block 30. No elastic member 50 is installed between the other locking block 42 and the guide block 30. When the two joints are closed, the lower locking block 42 enters the V-shaped groove, preventing the two joints from separating. With this arrangement, if the locking member 40 is accidentally unlocked, the flange 421 of the locking block 42 is located in the V-shaped groove, preventing the joint from opening. The operating handle 70 must be pulled upward to open the joint.

[0072] Further, see Figure 7 The second connecting plate 22 is provided with a second guide surface 222, which presses and guides the locking block 42 into the V-shaped groove. Under the guidance of the second guide surface 222, the locking block 42 is easily guided into the V-shaped groove to facilitate the joint restriction.

[0073] Furthermore, the flange 421 of the locking block 42 is provided with a third guide surface 422. The second connecting plate 22 presses against the third guide surface 422, which guides the locking block 42 into the V-shaped groove. Specifically, when the second connecting plate 22 is provided with the second guide surface 222, the second connecting plate 22 presses against the third guide surface 422 via the second guide surface 222. The second guide surface 222 and the third guide surface 422 cooperate to guide the locking block 42 into the V-shaped groove.

[0074] Another embodiment of the present application further provides a folding joint 100 included in the above-mentioned folding bicycle. Since the above-mentioned folding bicycle has beneficial effects, the folding joint 100 belonging to the above-mentioned folding bicycle has the same beneficial effects, which will not be described in detail here.

[0075] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A folding joint, characterized in that: include: A first joint (10) and a second joint (20), the two joints being rotatably connected to switch between a closed state and a separated state; a guide block (30) provided on the first joint (10); A locking member (40) comprises a connected penetrating rod (41) and a locking block (42), wherein the penetrating rod (41) is slidably arranged on the guide block (30) along a first direction; An elastic member (50) is provided between the guide block (30) and the locking block (42) along the first direction; when the two joints are switched from the separated state to the closed state, the second joint (20) presses against the locking member (40) to deform the elastic member (50), and the locking member (40) moves relative to the guide block (30) along the first direction; The second connector (20) is provided with a matching portion (60). When the two connectors are in the closed state, the locking member (40) is reset under the action of the elastic member (50) and cooperates with the matching portion (60) to limit the separation of the two connectors. The locking member (40) is operable to switch between a first state for limiting the separation of the two connectors and a second state for locking the two connectors.

2. The folding joint according to claim 1, characterized in that The matching portion (60) is a matching hole (61) provided on the second joint (20) and extending along the first direction; During the process of switching the two connectors from the separated state to the closed state, the second connector (20) presses against the end of the penetration rod (41), and the elastic member (50) is compressed and deformed; when the two connectors are in the closed state, the end of the penetration rod (41) enters the matching hole (61).

3. The folding joint according to claim 2, characterized in that: The second joint (20) is provided with a first guide surface (221); During the process of the two connectors switching from the separated state to the closed state, the second connector (20) presses and guides the end of the penetration rod (41) through the first guide surface (221); when the two connectors are in the closed state, the end of the penetration rod (41) is guided by the first guide surface (221) into the matching hole (61).

4. The folding joint according to claim 1, characterized in that The penetration rod (41) is a screw rod, and the locking block (42) is screwed to the penetration rod (41); Both of the two connectors are provided with a locking portion (121) that cooperates with the locking block (42), and the other end of the locking block (42) that contacts the elastic member (50) abuts against the first connector (10); The penetration rod (41) is operable to rotate circumferentially relative to the guide block (30), and the locking block (42) moves axially along the penetration rod (41) under the limiting action of the first joint (10) to cooperate with the locking portion (121) to lock the two joints in the second state or to lock with the locking portion (121) in the first state.

5. The folding joint according to claim 4, characterized in that: The matching portion (60) is formed on the locking portion (121); When the two connectors are switched from the separated state to the closed state, the second connector (20) presses against the locking block (42) corresponding to the elastic member (50); when the two connectors are in the closed state, the locking block (42) cooperates with the locking portion (121) to limit the separation of the connectors.

6. The folding joint according to claim 5, characterized in that: A second guide surface (222) is provided on the second joint (20), and the second joint (20) is pressed against and guided by the second guide surface (222) to the locking block (42) to cooperate with the locking portion (121) to restrict the joint; and / or The locking block (42) is provided with a third guide surface (422), the second connector (20) presses against the third guide surface (422), and the third guide surface (422) guides the locking block (42) to cooperate with the matching portion (60) to restrict the connector.

7. The folding joint according to claim 4, characterized in that: The locking member (40) includes two locking blocks (42), both of which are screwed to the penetrating rod (41) in opposite directions; the elastic member (50) is compressed and arranged between one of the locking blocks (42) and the guide block (30); The two joints are respectively provided with locking portions (121) that match the two locking blocks (42).

8. The folding joint according to claim 4, characterized in that: The locking portion (121) is a first groove provided inside the joint, and the locking block (42) has two flanges (421) that match the first groove.

9. The folding joint according to claim 1, characterized in that: The elastic member (50) is a spring, which is sleeved on the penetration rod (41) and located between the guide block (30) and the locking block (42).

10. A folding bicycle, characterized in that: The vehicle comprises a vehicle body and a folding joint as claimed in any one of claims 1 to 9, wherein the folding joint is connected to the vehicle body and is used for switching the vehicle body between a folded state and an unfolded state.

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