Folding device with self-locking function

Abstract

The invention relates to a folding device with a self-locking function. The folding device comprises a first folding piece, a second folding piece and an abutting piece, and the abutting piece is arranged on the side wall of the second folding piece in a protruding mode. The fixing structure can move up and down along one side of the first folding piece, the fixing structure comprises a fixing piece, and the fixing piece is located in the position, deviating from the first folding piece, of the abutting piece. The fixing piece is arranged on the first folding piece and located above the abutting piece all the time, and when the fixing piece is tightly attached to the abutting piece, the position of the fixing piece is fixed; when the fixing piece is tightly attached to the abutting piece, the first folding piece and the second folding piece can be fixed, when the fixing piece is not tightly attached to the abutting piece, the first folding piece and the second folding piece are not fixed any more, and no matter the fixing piece is tightly attached to the abutting piece or separated from the abutting piece, the fixing piece and the abutting piece cannot be squeezed and rubbed, and therefore the fixing piece and the abutting piece can be conveniently folded. And abrasion deformation of the fixing piece or the abutting piece after long-time use is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of folding devices, and in particular to a folding device with a self-locking function. Background Art

[0002] With the development of society and the improvement of people's living standards, foldable products such as foldable bicycles, foldable electric vehicles and foldable scooters continue to appear in our lives. In the above foldable products, the folding device can be folded to reduce the volume of the foldable product itself, and it can be conveniently stored after folding. To ensure safe use, after the product with a folding device is unfolded, the folding device must be quickly locked and fixed so that the folding device does not automatically open and fold.

[0003] The existing Chinese patent application number 202222625077.0 discloses a folding mechanism for an electric vehicle stand, including a first folding member, a second folding member, a handle, a top shaft, an extrusion seat, a buckle, and a hook member. The first folding member is hinged to the second folding member, the handle is hinged to the first folding member, the handle is provided with a top shaft and a slidably connected buckle, the second folding member is provided with an extrusion seat and a hook member. When the first folding member and the second folding member are docked, the handle rotates toward the second folding member, and the top shaft gradually moves onto the extrusion seat. When the handle is closed, the top shaft abuts against the extrusion seat, and the buckle and the hook member cooperate with each other to limit the rotation of the handle, thereby closing and fixing the first folding member and the second folding member.

[0004] In the above patent, when the top shaft rests on the extrusion seat, the top shaft will be squeezed and rubbed with the extrusion seat, and finally the top shaft slides to achieve the top shaft and the extrusion seat. After long-term and multiple uses, the extrusion seat or the top shaft will wear and deform, and there is a possibility of affecting the fixing effect of the first folding part and the second folding part. Summary of the Invention

[0005] The embodiments of the present application provide a folding device with a self-locking function to solve the problem of poor stability during long-term use in the related art.

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

[0007] A first folding piece and a second folding piece, wherein the first folding piece and the second folding piece are arranged in sequence from bottom to top, and the first folding piece is hinged to the second folding piece;

[0008] an abutment member protruding from a side wall of the second folding member;

[0009] a fixing structure, the fixing structure being movable up and down along one side of the first folding member, the fixing structure comprising a fixing member, the fixing member being located in a direction where the abutting member faces away from the first folding member, the fixing member having a fixed position, and when the fixing member is located in the fixed position, the fixing member abuts against the side of the abutting member facing away from the first folding member;

[0010] A driving structure, the driving structure being disposed on the first folding member and being used to drive the fixing structure to move up and down;

[0011] A locking structure is used to lock the position of the fixing structure relative to the first folding member.

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

[0013] The eccentric member is eccentrically rotatably connected to the first folding member, the lower end of the connecting member is rotatably connected to the eccentric member, and the upper end of the connecting member 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 grooves are two opposite grooves respectively provided on the bottom of the connecting member and the first folding member, and the two ends of the first spring abut against the two grooves of the limiting grooves.

[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 fixing position.

[0017] In some embodiments, the locking structure includes a linkage member, a snap member, and a snap-fit ​​member;

[0018] One end of the linkage member is hinged to the first folding member, and the end of the linkage member is fixedly connected to the driving structure, and the snap member is provided on the linkage member;

[0019] The linkage member has a locking position. When the linkage member is located at the locking position, the snap member cooperates with the snap fitting member to lock the fixing structure.

[0020] In some embodiments, a frame is provided on the fixing member, and the fixing member is located at an upper portion of the frame, a lower portion of the frame is fixedly connected to the driving structure, and the snap-fitting member is located at a top portion of the frame.

[0021] In some embodiments, a slide groove is provided in the linkage member, the latch member is slidably connected to the slide groove, and the sliding direction of the latch member is perpendicular to the rotation direction of the linkage member;

[0022] The locking structure further includes a second spring, which is located in the sliding groove and sleeved on the latch. Two ends of the second spring respectively abut against the end of the sliding groove and the latch.

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

[0024] The disassembly member is integrally provided with the linkage member, and the linkage member has a disassembly position. When the linkage member rotates in a direction opposite to the locking position, the linkage member moves toward the disassembly position. When the linkage member is located at the disassembly position, the disassembly member abuts against the driving structure.

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

[0026] When the linkage member is located at the locking position, the top block abuts against the fixing structure.

[0027] In some embodiments, the side of the abutting member facing away from the first folding member is recessed toward the first folding member to form a groove;

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

[0029] The embodiment of the present application provides a folding device with a self-locking function. Since the present application sets the fixing part on the first folding part through the driving structure and the fixing part is always located above the abutting part, when the fixing part is in close contact with the abutting part, the position of the fixing part is fixed, and the first folding part and the second folding part can be closed and fixed. When the fixing part is not in close contact with the abutting part, the first folding part and the second folding part can be unfolded. Regardless of whether the fixing part and the abutting part are in close contact or separated, no squeezing and friction will occur between the fixing part and the abutting part. Therefore, wear and deformation of the fixing part or the abutting part after long-term use is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0031] Figure 1A schematic diagram of the structure provided in an embodiment of the present application;

[0032] Figure 2 A structural diagram of a fixed structure is provided for an embodiment of the present application;

[0033] Figure 3 A schematic structural diagram of an abutment member is provided for an embodiment of the present application;

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

[0035] Figure 5 A schematic structural diagram of a fastener is provided for an embodiment of the present application;

[0036] Figure 6 A structural cross-sectional view provided for an embodiment of the present application.

[0037] In the figure: 1. first folding member; 2. second folding member; 3. abutting member; 4. fixing structure; 41. fixing member; 42. frame; 5. driving structure; 51. eccentric member; 52. connecting member; 53. limiting groove; 54. first spring; 6. locking structure; 61. linkage member; 62. snap member; 63. snap fitting member; 64. second spring; 65. disassembly member; 66. top block; 7. slide groove; 8. groove. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0039] The embodiments of the present application provide a folding device with a self-locking function, which can solve the problem of poor stability during long-term use in the related art.

[0040] See also Figures 1 to 6, a folding device with a self-locking function, comprising: a first folding member 1, a second folding member 2, an abutting 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 in sequence from bottom to top, the first folding member 1 is hinged to the second folding member 2, the abutting member 3 is protruded on 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, the fixing member 41 is located in the direction where the abutting member 3 is 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 side of the abutting member 3 away from the first folding member 1, the driving structure 5 is arranged on the first folding member 1, the driving structure 5 is used to drive the fixing structure 4 to move up and down, and 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 set on the first folding member 1 through the driving structure 5, and the movement of the fixing member 41 is controlled by the driving structure 5. The fixing member 41 can be moved to be in close contact with the abutment 3. Since the first folding member 1 and the second folding member 2 are unfolded, the second folding member 2 and the first folding member 1 need to rotate relative to each other. 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 side of the abutment 3 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 its 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 drive the abutment 3 to rotate relative to the first folding member 1. However, there is a fixing member 41 in the moving direction of the abutment member 3, and the position of the fixing member 41 is relatively unchanged with the position of the first folding member 1, resulting in the abutment member 3 being unable to move in this direction, and further resulting in the second folding member 2 being unable to rotate, thereby achieving the closing and fixing of the second folding member 2 to the first folding member 1. It should be pointed out that since the fixing member 41 is always above the abutment member 3 and the lifting and lowering of the fixing member 41 is achieved by the driving structure 5, compared with the traditional method of using the handle to rotate so that the top shaft and the extrusion seat are abutted, the present application will not have the problem of extrusion friction during the relative movement of the fixing member 41 and the abutment member 3, thereby avoiding the wear and deformation of the fixing member 41 or the abutment member 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 connected to the first folding member 1. The lower end of the connecting member 52 is connected to the eccentric member 51. The upper end of the connecting member 52 is connected to the fixed structure 4.

[0043] In a preferred embodiment, two opposite fixing rings are integrally provided on the first folding member 1, and the eccentric member 51 is composed of a connecting rod, a cylindrical shaft, and a special-shaped shaft, such as Figure 4As shown, the cylindrical shaft and the special-shaped shaft are arranged opposite to each other, and the two ends of the connecting rod are respectively connected to the cylindrical shaft and the special-shaped shaft, and the connecting rod is eccentrically connected to the cylindrical shaft. The cylindrical shaft and the special-shaped shaft are both 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 member 52 is sleeved on the connecting rod. During the eccentric rotation of the connecting rod, the connecting member 52 follows the eccentric rotation, thereby controlling the movement of the fixed structure 4 and its fixing member 41. The lifting and lowering movement of the fixing member 41 is achieved by using the eccentric member 51. The smaller movement range of the fixing member 41 is more suitable for this application. At the same time, due to the small movement range, the driving structure 5 will occupy a smaller space. The eccentric member 51 is a simple mechanical structure and is not prone to failure.

[0044] More specifically, in this embodiment, the driving structure 5 further includes a limiting groove 53 and a first spring 54. The limiting groove 53 is a groove provided at two positions on the bottom of the connecting member 52 and 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 to prevent the position of the first spring 54 from being offset. The first spring 54 will continue to provide a force to the connecting member 52 in the direction away from the first folding member 1. One end of the connecting member 52 is connected to the fixed structure 4. The fixed structure 4 is located above the eccentric member 51, so 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 connecting member 52 in the direction away from the first folding member 1, and since the connecting member 52 is rotatably connected to the connecting rod, the other side of the connecting member 52 will be offset toward the second folding member 2 or the first folding member 1, so that the fixing member 41 always moves between the second folding member 2 and the abutting member 3, ensuring that only the eccentric member 51 needs to be rotated to make the fixing member 41 close to the abutting member 3.

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

[0047] Preferably, in this embodiment, the locking structure 6 includes a linkage member 61, a snap member 62, and a snap fitting member 63. One end of the linkage member 61 is hinged to the first folding member 1, and the end of the linkage member 61 is fixedly connected to the driving structure 5. The snap member 62 is provided on the linkage member 61. The linkage member 61 has a locking position. When the linkage member 61 is in the locking position, the snap member 62 cooperates with the snap fitting member 63 to achieve locking of the fixed structure 4.

[0048] The linkage 61 is a handle, and the cylindrical shaft and the special-shaped shaft are respectively inserted on both sides of the linkage 61, wherein the special-shaped shaft is used to synchronize the rotation of the linkage 61 and the drive structure 5. When the linkage 61 starts to rotate, the special-shaped shaft drives the connecting rod and the cylindrical shaft to rotate, and the linkage 61 rotates toward the second folding member 2, driving the connecting member 52 to gradually descend, and the fixing member 41 and the abutment member 3 gradually approach. When the linkage 61 and the second folding member 2 are closed, the fixing member 41 is in a fixed position. At this time, the snap fitting 62 is matched with the snap fitting 63, and the position of the linkage 61 is fixed, and the first folding member 1 and the second folding member 2 are closed and fixed. The linkage 61 is a handle for easy control by the staff. When the linkage 61 is in the locked position, the linkage 61 covers the fixing structure 4 and the drive structure 5, which plays a protective role.

[0049] In a preferred embodiment, when the eccentric member 51 is in a locking position, in the process of the linkage member 61 moving from a perpendicular angle to the second folding member 2 to close to the second folding member 2, the first spring 54 will apply a force to the eccentric member 51 to move toward the locking position, making it easier for the staff to save effort 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 at the upper portion of the frame 42, the lower portion of the frame 42 is fixedly connected to the driving structure 5, the snap-fitting member 63 is located at the top of the frame 42, a slide groove 7 is provided in the linkage member 61, the snap-fitting member 62 is slidably connected in the slide groove 7, and the sliding direction of the snap-fitting member 62 is perpendicular to the rotation direction of the linkage member 61;

[0051] The frame 42 is a U-shaped frame, and the fixing member 41 is installed between the frame 42. The frame 42 and the connecting member 52 are connected by screw threads to achieve the fixing of the frame 42 and the connecting member 52. Figure 2 As shown, the frame 42 is rotatably connected to the bolt, so the connecting member 52 extends toward the frame 2 to form a planar protrusion, and the frame 42 is attached to the planar protrusion so that the frame 42 is maintained at a fixed angle. In a preferred embodiment, the angle of the frame 42 is such that the fixing member 41 can fit snugly in the groove 8, and the snap-fitting member 63 is on one side of the frame 42, as shown in FIG. Figure 2 As shown, the snap-fitting member 63 is rod-shaped, and the snap-fitting member 62 is as shown in FIG. Figure 5As shown, the fastener 62 is T-shaped and has a boss structure at one end. When the fastener 62 approaches the snap fitting 63, the fastener 62 slides in the slide groove 7. When the boss of the fastener 62 passes over the snap fitting 63, the fastener 62 slides again, so that the boss of the fastener 62 and the snap fitting 63 abut against each other. When the snap fitting 63 cannot move, the rotation position of the linkage 61 is fixed. Since a pipe needs to be installed on the second folding part 2, if an extra structure is set on the second folding part 2, then a corresponding structure is required on the pipe to ensure that the pipe can be inserted into the second folding part 2. Therefore, the present application sets the snap fitting 63 on the frame 42 to enhance the applicability of the device.

[0052] The locking structure 6 also includes a disassembly member 65, which is integrally arranged with the linkage member 61. The linkage member 61 has a disassembly position. When the linkage member 61 rotates in the direction opposite to the locking position, the linkage member 61 moves toward the disassembly position. When the linkage member 61 is in the disassembly position, the disassembly member 65 abuts against the connecting member 52. At this time, the disassembly member 65 and the second spring 64 are located on opposite sides of the connecting member 52. When the linkage member 61 continues to rotate in this direction after being in the disassembly position, the disassembly member 65 will push and rotate the connecting member 52, so that the fixing member 41 is away from the second folding member 2. At this time, the first folding member 1 and the second folding member 2 can be directly unfolded without being hindered by the fixing member 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 latch 62, with both ends of the second spring 64 respectively abutting against the end of the slide groove 7 and the latch 62;

[0054] In a preferred embodiment, one side of the latch 62 extends out from the slide groove 7 and forms a button. The position of the latch 62 is moved by pressing the button, which facilitates the boss of the latch 62 to pass over the latch fitting 63. After releasing the button, the second spring 64 will push the latch 62 back to the position before the movement, so that the latch 62 and the latch fitting 63 are matched, making it convenient for the staff to move and restore the position of the latch 62.

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

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

[0057] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive. The scope of the invention is defined by the appended claims, not the foregoing description, and all variations that come within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive. The scope of the invention is defined by the appended claims, not the foregoing description, and all variations that come within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0059] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods 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 piece and a second folding piece, wherein the first folding piece and the second folding piece are arranged in sequence from bottom to top, and the first folding piece is hinged to the second folding piece; an abutment member protruding from a side wall of the second folding member; a fixing structure, the fixing structure being movable up and down along one side of the first folding member, the fixing structure comprising a fixing member, the fixing member being located in a direction where the abutting member faces away from the first folding member, the fixing member having a fixed position, and when the fixing member is located in the fixed position, the fixing member abuts against the side of the abutting member facing away from the first folding member; A driving structure, the driving structure being disposed on the first folding member and being used to drive the fixing structure to move up and down; A locking structure is used to lock the position of the fixing structure relative to the first folding member.

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

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

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

5. The folding device with self-locking function according to claim 1, characterized in that: The locking structure includes a linkage part, a snap-fit ​​part, and a snap-fit ​​part; One end of the linkage member is hinged to the first folding member, and the end of the linkage member is fixedly connected to the driving structure, and the snap member is provided on the linkage member; The linkage member has a locking position. When the linkage member is located at the locking position, the snap member cooperates with the snap fitting member to lock the fixing structure.

6. The folding device with self-locking function according to claim 5, characterized in that: A frame is provided on the fixing member, and the fixing member is located at the upper portion of the frame. The lower portion of the frame is fixedly connected to the driving structure, and the snap-fitting member is located at the top of the frame.

7. The folding device with self-locking function according to claim 5, characterized in that: A sliding groove is provided in the linkage member, the latch member is slidably connected to the sliding groove, and the sliding direction of the latch member is perpendicular to the rotation direction of the linkage member; The locking structure further includes a second spring, which is located in the sliding groove and sleeved on the latch. Two ends of the second spring respectively abut against the end of the sliding groove and the latch.

8. The folding device with self-locking function according to claim 5, characterized in that: The locking structure further includes a disassembly member; The disassembly member is integrally provided with the linkage member, and the linkage member has a disassembly position. When the linkage member rotates in a direction opposite to the locking position, the linkage member moves toward the disassembly position. When the linkage member is located at the disassembly position, the disassembly member abuts against the driving structure.

9. The folding device with self-locking function according to claim 5, characterized in that: The locking structure further comprises a top block, which is fixedly connected to the linkage member; When the linkage member is located at the locking position, the top block abuts against the fixing structure.

10. The folding device with self-locking function according to claim 1, characterized in that: The side of the abutting member facing away from the first folding member is recessed toward the first folding member to form a groove; When the fixing member is located at the fixing position, the fixing member abuts against the abutting member and is located in the groove.

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