Symmetrical loose-leaf binding ring

Abstract

The utility model discloses a symmetrical loose-leaf binding ring which comprises a rotating shaft, a first hinge and a second hinge, the first hinge and the second hinge are of the same structure, and the first hinge and the second hinge are mutually inverted and pivoted through the rotating shaft. And therefore, the first hinge and the second hinge can pivot around the rotating shaft. The utility model has a simple structure, is convenient to install, does not fall off, and can be produced only by manufacturing a part in one shape.

Description

Technical Field

[0001] The utility model relates to the technical field of a loose-leaf binding ring, in particular to a symmetrical loose-leaf binding ring. Background Art

[0002] After punching holes on the loose leaves, loose-leaf binding rings can bind the loose leaves into books through the holes on the loose leaves. Loose-leaf binding rings on the market are generally composed of two long strips with a number of semicircular closed teeth. The two long strips cooperate with each other through a structure similar to a door hinge. However, since loose-leaf binding rings are generally made of plastic, the above-mentioned structure that cooperates with each other is relatively fragile and easy to break.

[0003] In the prior art, the Chinese invention patent publication number is CN101152811B, which provides a ring binder mechanism having a housing and a hinge plate supported by the housing so as to pivot relative to the housing. The ring member is mounted on the hinge plate and can move between a closed position and an open position. The actuator is mounted on the housing and is used to move relative to the housing to pivot the hinge plate. The locking element can releasably lock the closed ring member in the locked position, and release the closed ring member to move to the open position in the unlocked position. The intermediate connector can operably connect the locking element to the actuator. The loose-leaf can be fixed, and the structure is also relatively strong.

[0004] However, to realize the production of such a ring binder mechanism, it is necessary to produce a variety of parts, thereby requiring a variety of molds and setting up multiple production lines, which increases production requirements and production costs and is not conducive to mass production. Therefore, it is necessary to design a symmetrical loose-leaf binding ring to solve the above problems. Utility Model Content

[0005] In view of the fact that when producing the prior art loose-leaf binding ring in the above technology, two molds are required due to the different structures of the two closing parts, which increases the production cost and is not conducive to mass production, the utility model provides a symmetrical loose-leaf binding ring.

[0006] To achieve the above-mentioned purpose, the utility model provides a symmetrical loose-leaf binding ring, comprising a rotating shaft, a first hinge and a second hinge, wherein the first hinge and the second hinge have the same structure, the first hinge and the second hinge are inverted with each other and are pivotally connected through a rotating shaft, so that the first hinge and the second hinge revolve around the rotating shaft.

[0007] Preferably, the first hinge and the second hinge include a plurality of half-ring components and a ring support, and the plurality of half-ring components are evenly spaced and arranged on the ring support; when the first hinge and the second hinge are closed, the half-ring components of the two hinges correspond one by one to form a ring for holding loose-leaf paper.

[0008] Preferably, the ring support is also provided with a plurality of rotating columns, a hollow cavity is provided in the rotating columns, the plurality of rotating columns of the first hinge and the second hinge are engaged with each other, and the rotating shaft is penetrated in the hollow cavities of the plurality of rotating columns, so that the two ring supports can revolve around the rotating shaft.

[0009] Preferably, the ends of the semi-ring components are provided with closing teeth, and the closing teeth are wedge-shaped structures; when the first hinge and the second hinge are closed, the corresponding semi-ring components of the two are meshed with each other through the closing teeth to form the ring for holding loose-leaf paper.

[0010] Preferably, the ends of the half-ring parts located at both ends of the ring support are provided with locking teeth, and the locking teeth are inverted hook structures; when the first hinge and the second hinge are closed, the locking teeth on the two hinges are engaged with each other.

[0011] Preferably, one of the plurality of rotating columns is disposed at an end point of one end of the ring support, an end surface of the rotating column facing outward is a closed surface, and a slot for mounting the rotating shaft is provided on a side surface of the rotating column.

[0012] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model provides a symmetrical loose-leaf binding ring, comprising a rotating shaft, a first hinge and a second hinge, the first hinge and the second hinge are of the same structure, the first hinge and the second hinge are inverted with each other and are pivotally connected through the rotating shaft, so that the first hinge and the second hinge surround the rotating shaft; the loose-leaf binding ring of the utility model is composed of two identical hinges, and has a simple structure, only requires one mold, reduces production costs, and is conducive to mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an exploded view of the utility model.

[0014] Figure 2 This is an exploded view of the utility model from other viewing angles.

[0015] Figure 3 It is a three-dimensional back view of the first loose-leaf of the utility model.

[0016] Figure 4 It is a front perspective view of the first loose-leaf of the utility model.

[0017] Figure 5 It is an assembly stereogram of the utility model.

[0018] Figure 6 It is a cross-sectional view of a rotating column provided with a clamping slot of the utility model.

[0019] Figure 7 This is the first assembly flow chart of the utility model.

[0020] Figure 8 This is the second assembly flow chart of the utility model.

[0021] The main component symbols are described as follows:

[0022] Axis 1; first hinge 2; half ring component 21; closing tooth 211; locking tooth 212; ring support 22; rotating column 23; hollow cavity 231; closing surface 232; first rotating column 2301; second rotating column 2302; third rotating column 2303; slot 233; second hinge 3; ring 4 for holding the loose-leaf. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0024] See also Figure 1-2 The utility model discloses a symmetrical loose-leaf binding ring, comprising a rotating shaft 1, a first hinge 2 and a second hinge 3, wherein the first hinge 2 and the second hinge 3 are of the same structure, the first hinge 2 and the second hinge 3 are inverted with each other and are pivotally connected through the rotating shaft 1, so that the first hinge 2 and the second hinge 3 pivot around the rotating shaft 1. A symmetrical loose-leaf fixing device provided in the utility model is composed of two identical hinges and a rotating shaft, and the two hinges are relatively inverted to form the utility model, so only one mold is needed to complete the production, which is conducive to mass production and cost reduction.

[0025] See also Figure 3-5 In this embodiment, the first hinge 2 and the second hinge 3 include a plurality of semi-ring components 21 and a ring support 22, and the plurality of semi-ring components 21 are evenly spaced on the ring support 22; when the first hinge 2 and the second hinge 3 are closed, the semi-ring components 21 of the two correspond one by one to form a ring 4 for holding loose-leaf paper.

[0026] See also Figure 3-5 In this embodiment, the ring support 22 is also provided with a plurality of rotating columns 23, and a hollow cavity 231 is provided in the rotating column 23. The plurality of rotating columns 23 of the first hinge 2 and the second hinge 3 are engaged with each other in pairs, and the rotating shaft 1 is penetrated in the hollow cavities 231 of the plurality of rotating columns 23, so that the two ring supports 22 can pivot around the rotating shaft 1; the two support members in this application and the structures thereon are the same, and by setting the position of the rotating column thereon, the two support members can be relatively inverted and combined to form the utility model.

[0027] In one embodiment of the present invention, Figure 3 and Figure 5As shown, the symmetrical loose-leaf binding ring has five rings for holding loose-leaf pages, and the support member has three rotating cylinders, namely a first rotating cylinder 2301, a second rotating cylinder 2302 and a third rotating cylinder 2303;

[0028] The first rotating column 401 is arranged at the end point of one end of the ring support; the second rotating column 2302 is arranged at the other end of the ring support, and the length of the end point of the second rotating column 2302 from the other end is equal to the length of the first rotating column 2301, and one end of the third rotating column 2303 is in contact with the midpoint of the ring support;

[0029] Among them, one ring support is inverted relative to the other ring support, the first, second and third rotating columns on the two supports are engaged with each other, the rotating shaft is inserted into these rotating columns, and the supports are pivoted around the rotating shaft to complete the opening and closing between the corresponding half-ring components on the two supports. In this embodiment, through the special design of the positions of the three rotating columns, the rotating columns can be staggered and engaged with each other after the ring supports are inverted, so that the two supports are pivoted around the rotating shaft to achieve the fixation of the loose-leaf. Preferably, in the embodiment, the rotating shaft adopts a 2 mm steel column. In addition, the attached drawings of the present application are loose-leaf binding rings with 5 groups of half-ring components, but according to the actual binding situation, the loose-leaf binding ring of the present application can have any number of half-ring components.

[0030] See also Figure 3-5 The end of the semi-ring member 21 is provided with a closing tooth 211, which is a wedge-shaped structure; when the first hinge 2 and the second hinge 3 are closed, the semi-ring members 21 corresponding to each other mesh with each other through the closing teeth 211 to form a ring 4 for holding loose-leaf pages. The provision of the closing teeth increases the friction force and enhances the stability of the closed state of the device.

[0031] See also Figure 2 In the present invention, a set of half-ring components 21 has locking teeth 212 at the end thereof to fix the two hinges when they are closed. The locking teeth of the half-ring components are symmetrical structures that can be wedged with each other.

[0032] Preferably, in one embodiment of the present application, the ends of the half-ring parts at both ends of the ring support are provided with locking teeth, and the locking teeth are inverted hook structures; when the first hinge and the second hinge are closed, the locking teeth on the two hinges are engaged with each other. In this embodiment, the locking teeth with inverted hook structures are used, and the locking teeth with inverted hook shapes at the ends of a pair of half-ring parts are locked with each other to maintain the closed state of the device. This structure can make the closed state more stable.

[0033] See also Figure 3One of the rotating columns 23 is arranged at the end point of one end of the ring support 22, and the end surface of the rotating column facing outward is a closed surface 232, and a slot 233 for installing the rotating shaft 1 is opened on the side of the rotating column, and the length of the slot 233 is consistent with the length of the hollow cavity 231 of the rotating column. In the prior art, the rotating columns at both ends of the binding ring are provided with openings on the end surfaces of the outward ends, and the rotating shaft is inserted into other rotating columns through the openings at both ends. This structure makes it easy for the rotating shaft to slip out. The utility model sets a closed surface on the rotating column at the end point to prevent the rotating shaft from falling off. Furthermore, a slot is opened on the side of the rotating column for installing the rotating shaft. In this application, the first hinge and the second hinge have certain flexibility and rigidity.

[0034] See also Figure 6 In this embodiment, the slot 233 provided on the side of the rotating column is shorter than the length of the hollow cavity 231, so that the side wall of the rotating column at one end close to the closing surface 232 can limit the rotating shaft installed in the hollow cavity from escaping from the slot.

[0035] The assembly process of the utility model is as follows Figure 7 and Figure 8 As shown, the first hinge and the second hinge of the same structure are first inverted and the corresponding rotating columns are engaged with each other, and then one end of the engaged structure is opened, and the rotating shaft is moved along Figure 7 Insert the first hinge and the second hinge into the respective rotating columns in the direction of the dotted arrow in the figure, and then Figure 8 Insert the dotted arrow in the direction of the arrow into the corresponding slot of the rotating column to complete the assembly.

[0036] The use process of the utility model is as follows: when using the utility model to fix a stack of loose-leaf papers with holes into a book, firstly, the loose-leaf papers are arranged so that the holes on the loose-leaf papers are aligned one by one, then the first hinge and the second hinge of the utility model are opened, and then the semi-ring component on any hinge is passed through the hole on the loose-leaf papers, and finally the locking teeth on the first hinge and the second hinge are buckled, so that the stack of loose-leaf papers is fixed into a book.

[0037] The advantages of the utility model are:

[0038] 1) The two hinges of the utility model have the same structure, regardless of left or right, which is conducive to mass production and reduces production requirements.

[0039] 2) The utility model can better maintain the closed state of the device by providing closing teeth and locking teeth.

[0040] 3) A closed surface is set on the rotating column at the end and a slot is opened on the side to facilitate assembly and prevent the shaft from slipping out.

[0041] 4) The utility model increases the rigidity of the visual effect and the overall structure through the overall setting.

[0042] The above disclosures are only several specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A symmetrical loose-leaf binding ring, characterized in that: It comprises a rotating shaft, a first hinge and a second hinge, wherein the first hinge and the second hinge have the same structure, the first hinge and the second hinge are inverted with each other and are pivotally connected through the rotating shaft, so that the first hinge and the second hinge revolve around the rotating shaft.

2. A symmetrical loose-leaf binding ring according to claim 1, characterized in that: The first hinge and the second hinge include a plurality of half-ring components and a ring support, wherein the plurality of half-ring components are evenly spaced and arranged on the ring support; when the first hinge and the second hinge are closed, the half-ring components of the two hinges correspond one to one to form a ring for holding loose-leaf paper.

3. A symmetrical loose-leaf binding ring according to claim 2, characterized in that: The ring support is also provided with a plurality of rotating columns, wherein a hollow cavity is provided in the rotating columns, and the plurality of rotating columns of the first hinge and the second hinge are engaged with each other in pairs, and the rotating shaft is penetrated in the hollow cavities of the plurality of rotating columns, so that the two ring supports can surround the rotating shaft.

4. A symmetrical loose-leaf binding ring according to claim 2, characterized in that: The ends of the semi-ring parts are provided with closing teeth, which are wedge-shaped structures; when the first hinge and the second hinge are closed, the semi-ring parts corresponding to each other are meshed with each other through the closing teeth to form the ring for holding loose-leaf paper.

5. A symmetrical loose-leaf binding ring according to claim 2, characterized in that: The ends of the half ring parts located at both ends of the ring support are provided with locking teeth, and the locking teeth are inverted hook structures; when the first hinge and the second hinge are closed, the locking teeth on the two hinges are embedded with each other.

6. A symmetrical loose-leaf binding ring according to claim 3, characterized in that: One of the plurality of rotating columns is arranged at the end point of one end of the ring support, the end surface of the rotating column facing outward is a closed surface, and a slot for installing the rotating shaft is opened on the side surface of the rotating column.

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