Three-axis type hinge folder

Abstract

The three-axis type hinge folder comprises a front connector and a rear connector, a first connecting groove is formed in the back side of the right end of the front connector, and a pair of limiting protruding blocks are arranged at one end of the first connecting groove; the back side of the left end of the rear connector is provided with a second connecting groove communicated with the first connecting groove, a first connecting shaft and a second connecting shaft are fixedly inserted into the first connecting groove and the second connecting groove respectively, the first connecting shaft is rotationally connected with a first hinge piece, the second connecting shaft is fixedly connected with a second hinge piece, and the second hinge piece is rotationally connected with the first hinge piece through a third connecting shaft. A pair of limiting grooves connected with the limiting protruding blocks is formed in one end of the second hinge piece. Under the condition that the center of the folding shaft and the plane of the folding center are kept in the same plane, the hinge assembly is hidden on the connector, so that the overall appearance is flat and integrated, the hidden design of the handle, the hinge and the connecting shaft is achieved, and good appearance flatness and attractiveness are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of bicycle accessories, and more specifically, particularly relates to a three-axis hinge folder. Background Art

[0002] The bicycle folding device is the core component of the folding function of the folding bicycle, and controls the use state of the bicycle through the hinge.

[0003] The front and rear joints of the existing bicycle folding device usually adopt a single-axis hinge. Although the product ensures that the folding axis center and the joint folding center plane are on the same plane, the folding axis center must be outside the two joints to ensure the folding effect. There is a disadvantage that the folding axis is convex, resulting in an uneven overall appearance. At the same time, its operating handle is usually designed to be convex, resulting in an unsatisfactory overall appearance. Therefore, in view of this, the existing structure and defects are studied and improved, and a three-axis hinge folder is provided to achieve a more practical purpose. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a three-axis hinge folder, which is achieved by the following specific technical means: A three-axis hinge folder comprises a front joint and a rear joint, wherein a connecting groove 1 is provided on the back side of the right end of the front joint, and a pair of limiting protrusions are provided at one end of the connecting groove 1; a connecting groove 2 is provided on the back side of the left end of the rear joint, and a connecting shaft 1 and a connecting shaft 2 are fixedly inserted in the insides of the connecting groove 1 and the connecting groove 2, respectively, the connecting shaft 1 is rotatably connected with the hinge part 1, the connecting shaft 2 is fixedly connected with the hinge part 2, and the hinge part 2 is rotatably connected to the hinge part 1 through the connecting shaft 3; a pair of limiting grooves connected with the limiting protrusions are provided at one end of the hinge part 2; an installation groove 2 is provided on the front side of the left end of the rear joint, and a handle is rotatably installed on the inner side of the installation groove 2, and an installation groove 1 for accommodating the handle is provided on the front side of the right end of the front joint, a fixing bolt is fixedly installed in the inside of the installation groove 1, and a self-locking mechanism connected with the fixing bolt is installed at one end of the handle.

[0005] Furthermore, the hinge part 1 is in the shape of a "convex" character, and the hinge part 2 is in the shape of a "concave" character matching therewith.

[0006] Furthermore, a slide groove is provided on the front side of one end of the handle, and a through groove communicating with the back side of the handle is provided at the bottom of the slide groove; the self-locking mechanism includes a slide key slidably installed inside the slide groove, and a connecting block slidably connected to the through groove is provided on one side of the slide key, and a self-locking part is fixedly installed on the back side of the handle.

[0007] Furthermore, a snap-in for clamping with the fixing bolt port is provided on one side of the self-locking member; a spring is installed inside the through groove, and the other end of the spring is abutted against the side of the connecting block.

[0008] Furthermore, a plurality of groups of anti-slip convex strips are arranged on the surface of the sliding key.

[0009] Furthermore, a fastening shaft is fixedly installed inside the first mounting groove.

[0010] Furthermore, one end of the handle is rotatably connected to a connecting shaft four, and the connecting shaft four is fixedly installed inside the mounting groove two.

[0011] Compared with the prior art, the present invention has the following beneficial effects: The present invention ensures the folding effect and avoids the disadvantage that the center of the folding axis must be outside the joint through the cooperation of the connecting shaft one, the connecting shaft two and the connecting shaft three with the hinge part one and the hinge part two, thereby achieving the goal of hiding the folding axis and optimizing the appearance, solving the problem of hiding the hinge assembly on the joint while keeping the folding axis center and the folding center plane in the same plane to make the overall appearance flat and integrated, and realizing the hidden design of the handle, hinge and connecting shaft, with good appearance flatness and aesthetics, and when a single person operates the folding, the user experience is friendlier than conventional folding, the folding operation is smoother, and the folding time is shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0013] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0014] Figure 3 It is a schematic diagram of the three-axis hinge folder of the present invention after closing.

[0015] Figure 4 The three-axis hinge folder of the present invention is opened. Figure 1 .

[0016] Figure 5 The three-axis hinge folder of the present invention is opened. Figure 2 .

[0017] Figure 6 The three-axis hinge folder of the present invention is opened. Figure 3 .

[0018] In the figure, the corresponding relationship between the component names and the figure numbers is as follows: 1. Front joint; 101. Mounting slot 1; 102. Connecting slot 1; 103. Limiting protrusion; 2. Rear joint; 201. Mounting slot 2; 202. Connecting slot 2; 3. Hinge part 1; 4. Hinge part 2; 401. Limiting slot; 5. Connecting shaft 1; 6. Connecting shaft 2; 7. Connecting shaft 3; 8. Handle; 9. Connecting shaft 4; 10. Sliding key; 11. Locking piece; 12. Spring; 13. Fixing bolt; 14. Limiting shaft. DETAILED DESCRIPTION

[0019] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the 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 operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment:

[0022] As attached Figure 1 To Attachment Figure 6 As shown: The present invention provides a three-axis hinge folder, comprising a front joint 1 and a rear joint 2, wherein a connection groove 102 is arranged on the back side of the right end of the front joint 1, and a pair of limiting protrusions 103 are arranged at one end of the connection groove 102; a connection groove 202 in communication with the connection groove 102 is arranged on the back side of the left end of the rear joint 2, and a connection shaft 15 and a connection shaft 26 are fixedly inserted in the interiors of the connection groove 102 and the connection groove 202 respectively, the connection shaft 15 is rotatably connected to a hinge part 13, the connection shaft 26 is fixedly connected to a hinge part 24, and the hinge part 24 is rotatably connected to the hinge part 13 through a connection shaft 37; the hinge part One end of the second 4 is provided with a pair of limiting grooves 401 connected with the limiting protrusion 103, which can ensure that when the front joint 1 is opened, it can be opened around the connecting axis 5 first, and then the front joint 1 and the hinge part 3 are opened around the connecting axis 7 to prevent the front joint 1 from being rotated and stuck; the left end front side of the rear joint 2 is provided with an installation groove 201, and the inner side of the installation groove 201 is rotatably installed with a handle 8, and the right end front side of the front joint 1 is provided with an installation groove 101 for accommodating the handle 8, and the interior of the installation groove 101 is fixedly installed with a fixing bolt 13, and one end of the handle 8 is installed with a self-locking mechanism connected with the fixing bolt 13.

[0023] Among them, the hinge part 1 3 is in a "convex" shape, and the hinge part 2 4 is in a "concave" shape matching it, so that the two can be stably connected with the cooperation of the connecting shaft 3 7.

[0024] Among them, a slide groove is arranged on the front side of one end of the handle 8, and a through groove connected to the back side of the handle 8 is arranged at the bottom of the slide groove; the self-locking mechanism includes a slide key 10 slidably installed inside the slide groove, and a connecting block slidably connected to the through groove is arranged on one side of the slide key 10, and a self-locking part 11 is fixedly installed on the back side of the handle 8.

[0025] Among them, a snap-on socket for clamping with the port of the fixing bolt 13 is provided on one side of the self-locking member 11, so as to ensure that the handle 8 has high stability when locked by clamping the fixing bolt 13; a spring 12 is installed inside the through groove, and the other end of the spring 12 is connected to the side of the connecting block to press the connecting block so that the self-locking member 11 on one side is stably clamped with the fixing bolt 13 to ensure stability during use.

[0026] Among them, a plurality of groups of anti-slip convex strips are arranged on the surface of the sliding key 10, so that a person can quickly drive the sliding key 10 to move stably, thereby realizing rapid unlocking.

[0027] Among them, a fastening shaft 14 is fixedly installed inside the installation groove 101. Through the setting of the fastening shaft 14, the deepest storage position of the handle 8 inside the installation groove 101 can be limited, so as to cooperate with the fixing bolt 13 to ensure that the handle 8 will not shake when stored, so as to avoid abnormal noise during use.

[0028] Among them, one end of the handle 8 is rotatably connected to a connecting shaft 9, and the connecting shaft 9 is fixedly installed inside the mounting groove 201 to facilitate quick installation of the handle 8.

[0029] The working principle of this embodiment is as follows: first, hinge part 1 3 and hinge part 2 4 are connected together through connecting shaft 3 7 to form a hinge assembly, connecting shaft 3 7 is the location of the folding center plane of the front joint 1 and the rear joint 2, and then connecting shaft 1 5 and connecting shaft 2 6 respectively fix the hinge assembly to the front joint 1 and the rear joint 2, so that the hinge assembly is flush with the front and rear joints to form a flat whole, wherein connecting shaft 1 5 is the secondary rotating shaft, and connecting shaft 2 6 is the fixed anti-rotating shaft; the handle 8 is a foldable and hidden type, connected to the rear joint 2 through connecting shaft 4 9, and the handle 8 has a self-locking mechanism. After folding and storing, the entire folder can have a smooth appearance with a good appearance effect. When the folder is opened, the connecting shaft 3 7 is the secondary rotating shaft and the connecting shaft 1 5 is the main rotating shaft, which can prevent the front joint 1 from being stuck in rotation; the hinge part 1 3 ensures the folding effect through the connecting shaft 3 7 and the connecting shaft 1 5 when the folder is opened, and ensures the stability effect when the folder is closed; the hinge part 2 4 is fixed to the rear joint 2 through the connecting shaft 2 6, which can ensure the stability and strength of the hinge assembly. The present invention uses two hinge main and secondary rotating shafts and a fixed anti-rotation shaft to ensure the folding effect and avoid the disadvantage that the center of the folding rotating shaft must be outside the joint, thereby achieving the goal of hiding the folding rotating shaft and optimizing the appearance.

[0030] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A three-axis hinge folder, comprising a front joint (1) and a rear joint (2), characterized in that: A connecting groove 1 (102) is provided on the back side of the right end of the front joint (1), and a pair of limiting protrusions (103) are provided at one end of the connecting groove 1 (102); a connecting groove 2 (202) is provided on the back side of the left end of the rear joint (2), and a connecting shaft 1 (5) and a connecting shaft 2 (6) are fixedly inserted in the interiors of the connecting groove 1 (102) and the connecting groove 2 (202), respectively; the connecting shaft 1 (5) is rotatably connected to the hinge part 1 (3), and the connecting shaft 2 (6) is fixedly connected to the hinge part 2 (4), and the hinge part 2 (4) is connected to the hinge part 2 (4) through the connecting shaft The third hinge (7) is rotatably connected to the first hinge (3); one end of the second hinge (4) is provided with a pair of limit grooves (401) connected to the limit protrusion (103); the left front end of the rear joint (2) is provided with a second mounting groove (201), the inner side of which is rotatably mounted a handle (8); the right front end of the front joint (1) is provided with a first mounting groove (101) for accommodating the handle (8), the interior of the first mounting groove (101) is fixedly mounted with a fixing bolt (13), and one end of the handle (8) is provided with a self-locking mechanism connected to the fixing bolt (13).

2. The three-axis hinge folder according to claim 1, characterized in that: The hinge part 1 (3) is in the shape of a "convex" character, and the hinge part 2 (4) is in the shape of a "concave" character matching therewith.

3. The three-axis hinge folder as claimed in claim 1, characterized in that: A slide groove is provided on the front side of one end of the handle (8), and a through groove is provided at the bottom of the slide groove and communicates with the back side of the handle (8); the self-locking mechanism comprises a slide key (10) slidably mounted inside the slide groove, a connecting block slidably connected to the through groove is provided on one side of the slide key (10), and a self-locking member (11) is fixedly mounted on the back side of the handle (8).

4. The three-axis hinge folder as claimed in claim 3, characterized in that: A snap-on socket for clamping with the end of a fixing bolt (13) is provided on one side of the self-locking member (11); a spring (12) is installed inside the through slot, and the other end of the spring (12) is abutted against the side of the connecting block.

5. The three-axis hinge folder as claimed in claim 3, characterized in that: The surface of the sliding key (10) is provided with a plurality of groups of anti-slip convex strips.

6. The three-axis hinge folder as claimed in claim 1, characterized in that: A fastening shaft (14) is fixedly mounted inside the first mounting groove (101).

7. The three-axis hinge folder as claimed in claim 1, characterized in that: One end of the handle (8) is rotatably connected to a connecting shaft four (9), and the connecting shaft four (9) is fixedly mounted inside the mounting groove two (201).

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