A folding device with self-locking function

Abstract

This application relates to a folding device with a self-locking function, comprising: a first folding member, a second folding member, an abutment member, the abutment member protruding from the side wall of the second folding member; and a fixing structure, which is movable up and down along one side of the first folding member. The fixing structure includes a fixing member located on the abutment member away from the first folding member. In this application, the fixing member is placed on the first folding member and is always located above the abutment member. When the fixing member and the abutment member are in close contact, the position of the fixing member is fixed, thus fixing the first folding member and the second folding member. When the fixing member is not in close contact with the abutment member, the first folding member and the second folding member are not fixed. Whether the fixing member and the abutment member are in close contact or in the process of separation, the fixing member and the abutment member will not be squeezed or rubbed. Therefore, wear and deformation of the fixing member or the abutment member are avoided after long-term use.

Description

Technical Field

[0001] This application relates to the technical field of folding devices, and particularly to a folding device with a self-locking function. Background Technology

[0002] With social development and the improvement of people's living standards, folding products such as folding bicycles, folding electric bikes and folding scooters are constantly appearing in our lives. Among these folding products, the folding mechanism can reduce the size of the product itself. After folding, it can be stored conveniently. To ensure safety, after unfolding a product with a folding mechanism, the folding mechanism must be quickly locked and fixed to prevent it from opening automatically.

[0003] Chinese Patent Application No. 202222625077.0 discloses an electric vehicle pole folding mechanism, including a first folding piece, a second folding piece, a handle, a top shaft, a pressing seat, a buckle, and a hook. The first folding piece and the second folding piece are hinged together, and the handle is hinged to the first folding piece. The handle is provided with a top shaft and a slidably connected buckle. The second folding piece is provided with a pressing seat and a hook. When the first folding piece and the second folding piece are aligned, the handle rotates toward the second folding piece, and the top shaft gradually moves onto the pressing seat. When the handle is closed, the top shaft abuts against the pressing seat, and the buckle and the hook cooperate to restrict the rotation of the handle, thereby closing and fixing the first folding piece and the second folding piece.

[0004] In the aforementioned patent, during the process of the top shaft abutting against the extrusion seat, the top shaft will experience extrusion friction with the extrusion seat. Finally, the top shaft slides to achieve contact with the extrusion seat. Under long-term and repeated use, the extrusion seat or top shaft may experience wear and deformation, which may affect the fixing effect of the first folding part and the second folding part. Utility Model Content

[0005] This application provides a folding device with a self-locking function to solve the problem of poor long-term stability in related technologies.

[0006] In a first aspect, a folding device with a self-locking function is provided, comprising:

[0007] A first folding component and a second folding component are arranged sequentially from bottom to top, and the first folding component and the second folding component are hinged together.

[0008] An abutment member, which protrudes from the side wall of the second folding member;

[0009] A fixed structure is provided, which can move up and down along one side of the first folding member. The fixed structure includes a fixing member located on the abutment member away from the first folding member. The fixing member has a fixed position. When the fixing member is in the fixed position, the fixing member abuts against the abutment member on the side away from the first folding member.

[0010] A driving structure is provided on the first folding member, and the driving structure is used to drive the fixed structure to move up and down;

[0011] A locking structure is provided for locking the position of the fixed structure relative to the first folding member.

[0012] In some embodiments, the drive structure includes an eccentric component and a connecting component;

[0013] The eccentric component is eccentrically rotatably connected to the first folding component, the lower end of the connector is rotatably connected to the eccentric component, and the upper end of the connector is connected to the fixed structure.

[0014] In some embodiments, the driving structure further includes a limiting groove and a first spring;

[0015] The limiting groove is two opposite grooves respectively provided on the bottom of the connector and on the first folding member, and the two ends of the first spring abut against the two grooves of the limiting groove.

[0016] In some embodiments, the eccentric member has a locking position. When the eccentric member is in the locking position, the distance between the connecting member and the abutting member is the farthest and the fixing member is in the fixed position.

[0017] In some embodiments, the locking structure includes a linkage, a latching component, and a latching mating component;

[0018] One end of the linkage is hinged to the first folding member, and the other end of the linkage is fixedly connected to the drive structure. The buckle is disposed on the linkage.

[0019] The linkage has a locked position. When the linkage is in the locked position, the latching member and the latching engagement member cooperate to lock the fixed structure.

[0020] In some embodiments, the fastener is provided with a frame, and the fastener is located on the upper part of the frame, the lower part of the frame is fixedly connected to the drive structure, and the snap-fit ​​component is located on the top of the frame.

[0021] In some embodiments, the linkage is provided with a sliding groove, and the fastener is slidably connected in the sliding groove, wherein the sliding direction of the fastener is perpendicular to the rotation direction of the linkage.

[0022] The locking structure further includes a second spring, which is located in the slide groove and sleeved on the buckle, with both ends of the second spring abutting against the end of the slide groove and the buckle, respectively.

[0023] In some embodiments, the locking structure further includes a disassembly component;

[0024] The disassembly component and the linkage component are integrally formed. The linkage component has a disassembly position. When the linkage component rotates in the direction opposite to the locking position, the linkage component moves to the disassembly position. When the linkage component is in the disassembly position, the disassembly component abuts against the drive structure.

[0025] In some embodiments, the locking structure further includes a top block, which is fixedly connected to the linkage member;

[0026] When the linkage is in the locked position, the top block abuts against the fixed structure.

[0027] In some embodiments, the abutment member is recessed towards the first folding member on the side opposite to the first folding member, forming a groove;

[0028] When the fixing member is in the fixed position, the fixing member abuts against the abutting member and is located within the groove.

[0029] This application provides a folding device with a self-locking function. Since the fixing member is set on the first folding member by the driving structure and the fixing member is always located above the abutment member, when the fixing member is in close contact with the abutment member, the position of the fixing member is fixed, and the first folding member and the second folding member can be closed and fixed. When the fixing member is not in close contact with the abutment member, the first folding member and the second folding member can be unfolded. Whether the fixing member and the abutment member are in close contact or in the process of separation, the fixing member and the abutment member will not be squeezed or rubbed. Therefore, wear and deformation of the fixing member or the abutment member are avoided after long-term use. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1This is a schematic diagram of the structure provided for an embodiment of this application;

[0032] Figure 2 A structural schematic diagram of the fixed structure is provided for the embodiments of this application;

[0033] Figure 3 A schematic diagram of the abutment component is provided for the embodiments of this application;

[0034] Figure 4 A schematic diagram of the locking structure is provided for an embodiment of this application;

[0035] Figure 5 A structural schematic diagram of the fastener is provided for the embodiments of this application;

[0036] Figure 6 This is a structural cross-sectional view provided for an embodiment of this application.

[0037] In the diagram: 1. First folding component; 2. Second folding component; 3. Abutting component; 4. Fixing structure; 41. Fixing component; 42. Frame; 5. Driving structure; 51. Eccentric component; 52. Connecting component; 53. Limiting groove; 54. First spring; 6. Locking structure; 61. Linkage component; 62. Buckle component; 63. Buckle mating component; 64. Second spring; 65. Disassembly component; 66. Top block; 7. Slide groove; 8. Groove. Detailed Implementation

[0038] 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. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] This application provides a folding device with a self-locking function, which can solve the problem of poor long-term stability in related technologies.

[0040] Please see Figures 1 to 6A folding device with a self-locking function includes: a first folding member 1, a second folding member 2, an abutment member 3, a fixing structure 4, a driving structure 5, and a locking structure 6. The first folding member 1 and the second folding member 2 are arranged sequentially from bottom to top. The first folding member 1 and the second folding member 2 are hinged together. The abutment member 3 protrudes from the side wall of the second folding member 2. The fixing structure 4 can move up and down along one side of the first folding member 1. The fixing structure 4 includes a fixing member 41, which is located in a position away from the first folding member 1. The fixing member 41 has a fixed position. When the fixing member 41 is in the fixed position, the fixing member 41 abuts against the abutment member 3 on the side away from the first folding member 1. The driving structure 5 is disposed on the first folding member 1 and is used to drive the fixing structure 4 to move up and down. The locking structure 6 is used to lock the position of the fixing structure 4 relative to the first folding member 1.

[0041] In this embodiment, the fixing member 41 is mounted on the first folding member 1 via the driving structure 5. The driving structure 5 controls the movement of the fixing member 41, which can move to be in close contact with the abutment member 3. Since the first folding member 1 and the second folding member 2 are unfolded, the second folding member 2 needs to rotate relative to the first folding member 1. The two must rotate relative to each other around the hinge to move away from the other folding member. When the fixing member 41 is in close contact with the abutment member 3 on the side away from the first folding member 1, and the position of the fixing member 41 is fixed by the locking structure 6, so that the fixing member 41 maintains a relative position with the first folding member 1, if the second folding member 2 moves away from the first folding member 1 around the hinge, it will cause the abutment member 3 to rotate relative to the first folding member 1. However, there is a fixing member 41 in the moving direction of the abutment 3. The position of the fixing member 41 is relatively unchanged with the position of the first folding member 1, which makes it impossible for the abutment 3 to move in this direction, and consequently, the second folding member 2 cannot rotate. This achieves the closure and fixation of the second folding member 2 and the first folding member 1. It should be noted that since the fixing member 41 is always above the abutment 3 and the lifting and lowering of the fixing member 41 is achieved through the drive structure 5, compared with the traditional method of using the handle to rotate so that the top shaft abuts against the pressing seat, this application does not have the problem of squeezing and friction during the relative movement of the fixing member 41 and the abutment 3, avoiding the wear and deformation of the fixing member 41 or the abutment 3, and improving the service life of the device.

[0042] Specifically, in this embodiment, the driving structure 5 includes an eccentric member 51 and a connecting member 52. The eccentric member 51 is eccentrically rotatably connected to the first folding member 1, the lower end of the connecting member 52 is rotatably connected to the eccentric member 51, and one end of the upper end of the connecting member 52 is connected to the fixed structure 4.

[0043] In a preferred embodiment, two opposing fixing rings are integrally provided on the first folding member 1, and the eccentric member 51 consists of a connecting rod, a cylindrical shaft, and a non-circular shaft, such as... Figure 4As shown, the cylindrical shaft and the irregular shaft are arranged opposite to each other. The two ends of the connecting rod are respectively connected to the cylindrical shaft and the irregular shaft, and the connecting rod is eccentrically connected to the cylindrical shaft. Both the cylindrical shaft and the irregular shaft are rotatably connected in the fixed ring. During the rotation of the cylindrical shaft, the connecting rod rotates eccentrically between the two fixed rings. The connecting piece 52 is sleeved on the connecting rod. During the eccentric rotation of the connecting rod, the connecting piece 52 follows and rotates eccentrically, thereby controlling the movement of the fixed structure 4 and its fixing piece 41. The lifting and lowering movement of the fixing piece 41 is achieved by using the eccentric piece 51. The smaller movement range of the fixing piece 41 is more suitable for this application. At the same time, due to the small movement range, the drive structure 5 occupies less space. The eccentric piece 51 is a simple mechanical structure and is not prone to failure.

[0044] More specifically, in this embodiment, the drive structure 5 also includes a limiting groove 53 and a first spring 54. The limiting groove 53 is a pair of opposite grooves located at two positions on the bottom of the connector 52 and on the first folding member 1, respectively. The two ends of the first spring 54 abut against the two grooves of the limiting groove 53.

[0045] The limiting groove 53 serves to limit the first spring 54 and prevent the position of the first spring 54 from shifting. The first spring 54 will continuously provide a force to the connector 52 away from the first folding member 1. One end of the connector 52 is connected to the fixing structure 4, which is located above the eccentric member 51. Therefore, the first spring 54 is located below the eccentric member 51. During the eccentric rotation, the first spring 54 will push the side connected to the connector 52 away from the first folding member 1. Since the connector 52 is rotatably connected to the connecting rod, the other side of the connector 52 will shift towards the second folding member 2 or the first folding member 1. This ensures that the fixing member 41 always moves between the second folding member 2 and the abutting member 3, so that only the eccentric member 51 needs to be rotated to make the fixing member 41 always stick tightly to the abutting member 3.

[0046] In a preferred embodiment, the eccentric member 51 has a locked position. When the eccentric member 51 is in the locked position, the distance between the connecting member 52 and the abutting member 3 is the farthest, the fixing member 41 is in a fixed position, the first spring 54 is horizontally set, and the force applied by the fixing member 41 to the abutting member 3 is the greatest.

[0047] Preferably, in this embodiment, the locking structure 6 includes a linkage member 61, a latching member 62, and a latching engagement member 63. One end of the linkage member 61 is hinged to the first folding member 1, and the other end of the linkage member 61 is fixedly connected to the driving structure 5. The latching member 62 is disposed on the linkage member 61. The linkage member 61 has a locked position. When the linkage member 61 is in the locked position, the latching member 62 and the latching engagement member 63 cooperate to lock the fixed structure 4.

[0048] The linkage 61 serves as a handle. A cylindrical shaft and a non-circular shaft are respectively inserted into both sides of the linkage 61. The non-circular shaft is used to synchronize the rotation of the linkage 61 and the drive structure 5. When the linkage 61 starts to rotate, the non-circular shaft drives the connecting rod and the cylindrical shaft to rotate. The linkage 61 rotates towards the second folding piece 2, causing the connecting piece 52 to gradually descend. The fixing piece 41 and the abutting piece 3 gradually approach each other. When the linkage 61 and the second folding piece 2 are closed, the fixing piece 41 is in a fixed position. At this time, the buckle 62 and the buckle mating piece 63 are engaged, and the position of the linkage 61 is fixed, closing and fixing the first folding piece 1 and the second folding piece 2. The linkage 61 serves as a handle for easy control by the operator. When the linkage 61 is in the locked position, the linkage 61 covers the fixing structure 4 and the drive structure 5, providing protection.

[0049] In a preferred embodiment, when the eccentric member 51 is in a locked position, the first spring 54 will apply a force to the eccentric member 51 to move towards the locked position as the linkage member 61 moves from a perpendicular angle to the second folding member 2 to closer to the second folding member 2, making it easier for the operator to work in this process.

[0050] More preferably, in this embodiment, a frame 42 is provided on the fixing member 41, and the fixing member 41 is located on the upper part of the frame 42. The lower part of the frame 42 is fixedly connected to the driving structure 5. The snap-fit ​​part 63 is located on the top of the frame 42. The linkage member 61 is provided with a sliding groove 7. The snap-fit ​​part 62 is slidably connected in the sliding groove 7. The sliding direction of the snap-fit ​​part 62 is perpendicular to the rotation direction of the linkage member 61.

[0051] The frame 42 is a U-shaped frame, and the fastener 41 is installed between the frames 42. The frames 42 and the connector 52 are connected by threads to fix the frames 42 and the connector 52. Figure 2 As shown, frame 42 is rotatably connected to bolts, so connector 52 extends towards frame 2, forming a planar protrusion. Frame 42 is attached to this planar protrusion, keeping frame 42 at a fixed angle. In a preferred embodiment, the angle of frame 42 allows fastener 41 to fit snugly into groove 8. Snap-fit ​​connector 63 is located on one side of frame 42, such as... Figure 2 As shown, the snap-fit ​​component 63 has a rod-shaped structure, and the snap-fit ​​component 62 is as follows: Figure 5As shown, the fastener 62 is T-shaped with a boss at one end. When the fastener 62 approaches the fastening engagement 63, the fastener 62 slides in the groove 7. When the boss of the fastener 62 passes the fastening engagement 63, the fastener 62 slides again, causing the boss of the fastener 62 to abut against the fastening engagement 63. When the fastening engagement 63 cannot move, the rotation position of the linkage 61 is fixed. Since the second folding member 2 needs to install the pipe, if an extra structure is set on the second folding member 2, then the pipe also needs to have a corresponding structure to ensure that the pipe can be inserted into the second folding member 2. Therefore, this application sets the fastening engagement 63 on the frame 42 to enhance the applicability of this device.

[0052] The locking structure 6 also includes a disassembly component 65, which is integrally formed with the linkage component 61. The linkage component 61 has a disassembly position. When the linkage component 61 rotates in the opposite direction to the locking position, the linkage component 61 moves to the disassembly position. When the linkage component 61 is in the disassembly position, the disassembly component 65 abuts against the connecting component 52. At this time, the disassembly component 65 and the second spring 64 are located on opposite sides of the connecting component 52. When the linkage component 61 continues to rotate in that direction after being in the disassembly position, the disassembly component 65 will push and rotate the connecting component 52, causing the fixing component 41 to move away from the second folding component 2. At this time, the first folding component 1 and the second folding component 2 can be unfolded directly without being obstructed by the fixing component 41.

[0053] like Figure 5 As shown, in this embodiment, the locking structure 6 further includes a second spring 64, which is located in the slide groove 7 and sleeved on the buckle 62. The two ends of the second spring 64 abut against the end of the slide groove 7 and the buckle 62, respectively.

[0054] In a preferred embodiment, one side of the fastener 62 extends out from the slide groove 7 and forms a button. By pressing the button, the position of the fastener 62 can be moved, so that the protrusion of the fastener 62 can pass over the fastening engagement member 63. After releasing the button, the second spring 64 will push the fastener 62 back to its previous position, so that the fastener 62 and the fastening engagement member 63 can be engaged, which facilitates the movement and restoration of the position of the fastener 62 by the staff.

[0055] like Figure 6 As shown, in this embodiment, the locking structure 6 also includes a top block 66, which is fixedly connected to the linkage member 61. When the linkage member 61 is in the locked position, the top block 66 abuts against the frame 42, restricting the range of motion of the fixing structure 4.

[0056] The abutment 3 is recessed towards the first folding member 1 on the side away from the first folding member 1, forming a groove 8. When the fixing member 41 is in the fixed position, the fixing member 41 abuts against the abutment 3 and is located in the groove 8. When the fixing member 41 is in the groove 8, the position of the fixing member 41 on the abutment 3 is fixed. In order to facilitate the fixing member 41 to be embedded in the groove 8, the fixing member 41 is a cylindrical structure. The side of the abutment 3 away from the first folding member 1 is a plane. When the fixing member 41 is in the fixed position, the first spring 54 will press the fixing member 41 against the side of the groove 8 close to the first folding member 1. At the same time, the linkage 61 is in the locked position, and the top block 66 will press against the frame 42. The two sandwich the frame 42 in the middle, which plays a secondary fixing role.

[0057] 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 exemplary and non-limiting in all respects. The scope of this invention is defined by the appended claims rather than the foregoing description, and 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.

[0058] 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 exemplary and non-limiting in all respects. The scope of this invention is defined by the appended claims rather than the foregoing description, and 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.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider 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 device with a self-locking function, characterized in that: A first folding component and a second folding component are arranged sequentially from bottom to top, and the first folding component and the second folding component are hinged together. An abutment member, which protrudes from the side wall of the second folding member; A fixed structure is provided, which can move up and down along one side of the first folding member. The fixed structure includes a fixing member located on the abutment member away from the first folding member. The fixing member has a fixed position. When the fixing member is in the fixed position, the fixing member abuts against the abutment member on the side away from the first folding member. A driving structure is provided on the first folding member, and the driving structure is used to drive the fixed structure to move up and down; A locking structure is provided for locking the position of the fixed structure relative to the first folding member.

2. The folding device with self-locking function according to claim 1, characterized in that: The drive structure includes an eccentric component and a connecting component; The eccentric component is eccentrically rotatably connected to the first folding component, the lower end of the connector is rotatably connected to the eccentric component, and the upper end of the connector is connected to the fixed structure.

3. The folding device with self-locking function according to claim 2, characterized in that: The driving structure also includes a limiting groove and a first spring; The limiting groove is two opposite grooves respectively provided on the bottom of the connector and on the first folding member, and the two ends of the first spring abut against the two grooves of the limiting groove.

4. The folding device with self-locking function according to claim 2, characterized in that: The eccentric component has a locking position. When the eccentric component is in the locking position, the distance between the connecting component and the abutting component is the farthest and the fixing component is in the fixing position.

5. The folding device with self-locking function according to claim 1, characterized in that: The locking structure includes a linkage component, a latching component, and a latching mating component; One end of the linkage is hinged to the first folding member, and the other end of the linkage is fixedly connected to the drive structure. The buckle is disposed on the linkage. The linkage has a locked position. When the linkage is in the locked position, the latching member and the latching engagement member cooperate to lock the fixed structure.

6. The folding device with self-locking function according to claim 5, characterized in that: The fastener has a frame, and the fastener is located on the upper part of the frame. The lower part of the frame is fixedly connected to the drive structure, and the snap-fit ​​component is located on the top of the frame.

7. The folding device with self-locking function according to claim 5, characterized in that: The linkage component is provided with a sliding groove, and the fastener is slidably connected in the sliding groove. The sliding direction of the fastener is perpendicular to the rotation direction of the linkage component. The locking structure further includes a second spring, which is located in the slide groove and sleeved on the buckle, with both ends of the second spring abutting against the end of the slide groove and the buckle, respectively.

8. The folding device with self-locking function according to claim 5, characterized in that: The locking structure also includes a disassembly component; The disassembly component and the linkage component are integrally formed. The linkage component has a disassembly position. When the linkage component rotates in the direction opposite to the locking position, the linkage component moves to the disassembly position. When the linkage component is in the disassembly position, the disassembly component abuts against the drive structure.

9. The folding device with self-locking function according to claim 5, characterized in that: The locking structure also includes a top block, which is fixedly connected to the linkage component; When the linkage is in the locked position, the top block abuts against the fixed structure.

10. The folding device with self-locking function according to claim 1, characterized in that: The abutment is recessed towards the first folding member on the side opposite to the first folding member, forming a groove; When the fixing member is in the fixed position, the fixing member abuts against the abutting member and is located within the groove.

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