A rotary latch structure binder

Abstract

This utility model discloses a rotary locking structure binder, relating to the field of binder technology. It includes a main binder, a secondary binder, and a locking plate. The secondary binder includes a slide rod and several second clamping brackets fixed to the slide rod. An embedded groove is formed on the upper surface of the main binder along its extension direction. The two ends of the embedded groove are closed as limiting blind holes. The two ends of the slide rod are respectively located within the corresponding limiting blind holes. The two limiting blind holes and the embedded groove together form the sliding space and rotation space of the slide rod. Several first clamping brackets that cooperate with the second clamping brackets are provided on one side of the main binder. Several recesses are provided on the other side of the main binder to form clearance spaces for the opening, closing, and shutting down of the second clamping brackets. The locking plate is detachably mounted on the lower surface of the main binder. Through the cooperation of the embedded groove on the main binder and the slide rod of the secondary binder, the operation is simple and convenient, solving the problem of difficulty in changing loose pages in existing binders.

Description

Technical Field

[0001] This utility model relates to the field of binder technology, specifically a rotary locking structure binder. Background Technology

[0002] Ring binders are common tools used to organize and store paper and documents. They are typically designed to hold loose paper documents between their covers, allowing for easy removal of these documents, and the binder can be reused for the subsequent storage of other paper documents.

[0003] Existing binders have at least the following problems:

[0004] 1. Installing or replacing the hinges requires three steps to open the clip, which is relatively inconvenient;

[0005] 2. The engagement of structural components (coils) is inaccurate and they are prone to misalignment.

[0006] Therefore, there is an urgent need to design a rotary locking structure binder that is easy to operate, has a stable structure, and is not prone to pages falling out. Summary of the Invention

[0007] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and propose a rotary locking structure binder.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a rotary locking structure binder, including a main binder, a secondary binder, and a snap plate. The secondary binder includes a slide rod and several second clamping frames fixed on the slide rod. The upper surface of the main binder has an embedded groove along its extension direction. The two ends of the embedded groove are closed as limiting blind holes. The two ends of the slide rod are respectively located in the corresponding limiting blind holes. The two limiting blind holes and the embedded groove together form the sliding space and rotation space of the slide rod. One side of the main binder is provided with several first clamping frames that cooperate with the second clamping frames. The other side of the main binder is provided with several recesses. The several recesses are used to form a clearance space for the opening, closing, and shutting of the several second clamping frames. The snap plate is detachably disposed on the lower surface of the main binder.

[0009] Preferably, the projection of the plurality of recesses onto the vertical plane is an inverted step shape, and each of the recesses includes a first recess extending to the bottom of the inset groove and a second recess penetrating the groove wall of the inset groove. The second recess is located above the first recess, the width of the first recess is greater than or equal to the width of the plurality of second clamping frames, and the width of the second recess is greater than the width of the first recess.

[0010] Preferably, in any of the recesses, the inner groove wall has a protrusion, and the protrusions are all located below the corresponding second recess and extend from the inner groove wall to one side of the corresponding first recess; of the two ends of the slide rod, the end that extends in the same direction as the protrusions is the first end and the other end is the second end; when the multiple second clamping frames are all located in the second recess and completely cover the corresponding protrusions, the second end is located in the corresponding limiting blind hole, and the sum of the length of the first end and the width of the adjacent second clamping frame is greater than or equal to the width of the second recess; when the multiple second clamping frames are all located in the first recess, the first end is located in the corresponding limiting blind hole, and the length of the second end is greater than or equal to the straight distance from the opening of the limiting blind hole near the second end to the side of the adjacent second clamping frame.

[0011] Preferably, a spring is fixed on the end face of the first end, and the other end of the spring is located in a limiting blind hole near the first end, and is used to provide limiting resistance when the second clamps are closed.

[0012] Preferably, each of the first clamping frames has a first horizontal segment, a first arc-shaped segment, and a toothed recess. The upper surface of the first horizontal segment is on the same plane as the upper surface of the main binder and extends away from the main binder. One end of the first arc-shaped segment is fixed to the end of the first horizontal segment away from the main binder, and the other end of the first arc-shaped segment is located above the upper surface of the main binder and is fixed with a toothed recess, which is located directly above the inner groove. Each of the second clamping frames has a second horizontal segment, a second arc-shaped segment, and a toothed protrusion. The upper surface of the second horizontal segment is tangent to the outer surface of the slide bar and extends away from the slide bar along the tangent. One end of the second arc-shaped segment is fixed to the end of the second horizontal segment away from the slide bar. The other end of the second arc-shaped segment is located above the slide bar and is fixed with a toothed protrusion. The toothed protrusion is located directly above the slide bar. When the second clamping frames are in the closed state, the toothed recesses abut against the corresponding toothed protrusions. Each second clamping frame forms an arc-shaped closed limiting structure with the corresponding first clamping frame for limiting the hinge.

[0013] Preferably, each of the two limiting blind holes has a countersunk hole on the side away from the inner groove; the two ends of the buckle plate are provided with buckles, and the two buckles pass through the corresponding countersunk holes and are engaged in the countersunk holes.

[0014] The beneficial effects achieved by this utility model due to the adoption of the above technical solution are as follows: The rotary locking structure binder of this utility model, through its unique design, achieves convenient replacement and stable clamping of the binder. The main binder and the secondary binder, through the cooperation of the embedded groove and the slide bar, not only simplify the operation steps but also improve the ease of use. The inverted stepped design of the concave part, combined with the precise positioning of the convex part and the end of the slide bar, ensures the stability and accuracy of the second clamping frame during opening and closing. The addition of a spring provides appropriate limiting resistance for closing the second clamping frame, further enhancing the stability of the clamping. Simultaneously, the toothed concave and convex designs of the first and second clamping frames form an arc-shaped closing limiting structure, effectively preventing the binders from slipping and improving the overall usability. The detachable connection between the buckle plate and the main binder increases the strength of the overall structure and greatly extends the product's service life. Attached Figure Description

[0015] Figure 1 This is an exploded view of the overall structure of a rotary locking structure binder according to this utility model;

[0016] Figure 2 This is an exploded view of the right side of the rotating locking structure binder of this utility model.

[0017] Figure 3 This is a schematic diagram of the rotating locking structure of the present invention in a sliding state.

[0018] Figure 4 This is a schematic diagram of the rotating locking structure of the present invention in the rotating state of the binder.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Main binder; 11. Embedded groove; 12. Limiting blind hole; 13. First clamping frame; 131. First horizontal section; 132. First arc-shaped section; 133. Toothed recess; 14. Recess; 141. First recess; 142. Second recess; 15. Protrusion; 16. Countersunk hole; 2. Secondary binder; 21. Slide rod; 211. First end; 212. Second end; 213. Spring; 22. Second clamping frame; 221. Second horizontal section; 222. Second arc-shaped section; 223. Toothed protrusion; 3. Buckle plate; 31. Snap fastener. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] The core of this utility model is to provide a rotary locking structure binder to solve the problems of cumbersome installation and replacement steps and easy misalignment of structural components in existing binders.

[0023] The present invention will be described in detail with the following embodiments: Example

[0024] refer to Figure 1-4 A type of rotating locking structure binder, such as Figure 1 As shown, it includes a main binder 1, a secondary binder 2, and a clip plate 3. The secondary binder 2 includes a slide bar 21 and several second clamping frames 22 fixed on the slide bar 21. The upper surface of the main binder 1 has an embedded groove 11 along its extension direction. The two ends of the embedded groove 11 are closed as limiting blind holes 12. The two ends of the slide bar 21 are respectively located in the corresponding limiting blind holes 12. The two limiting blind holes 12 and the embedded groove 11 together form the sliding space and rotation space of the slide bar 21.

[0025] One side of the main binder 1 is provided with a plurality of first clamping frames 13 that cooperate with the second clamping frame 22, and the other side of the main binder 1 is provided with a plurality of recesses 14, which are used to form a clearance space for the opening and closing of the plurality of second clamping frames 22.

[0026] The snap plate 3 is detachably mounted on the lower surface of the main hinge 1.

[0027] Specifically, the first clamping frame 13 and the second clamping frame 22 are preferably set to three each, which can provide sufficient fixing effect for the loose pages, while ensuring the simplicity of the structure and facilitating mold production. The slide bar 21 is made of plastic material, preferably ABS.

[0028] Preferably, the inner groove 11 is configured as an arc-shaped structure that matches the slide rod 21. The width of the inner groove 11 is greater than the diameter of the slide rod 21 to ensure smooth sliding and rotation of the slide rod 21. Correspondingly, the diameter of the two limiting blind holes 12 is also greater than the diameter of the slide rod 21.

[0029] When using the above structure, first insert one end of the slide rod 21 into the corresponding limiting blind hole 12 through the inner groove 11. Since the slide rod 21 has a certain elasticity, align the other end of the slide rod 21 with another limiting blind hole 12, and lift the slide rod 21 upwards to cause a slight deformation until it is inserted into another limiting blind hole 12. Figure 3 As shown in the upper middle figure; at this time, the slide bar 21 can slide within the inner groove 11, as... Figure 3 As shown in the lower figure; due to the presence of the recess 14, the second clamping frame 22 can be opened and closed, as shown in the figure below; Figure 4 As shown in the first two pictures; finally, install the snap-on plate 3 under the main hinge 1. It should be noted that... Figure 3 and Figure 4 The diagram shows one flow of sliding and rotating. To reverse the operation, simply follow the reverse order shown in the diagram.

[0030] Preferred, such as Figure 1 As shown, the projection of the plurality of recesses 14 onto the vertical plane is an inverted stepped shape. Each recess 14 includes a first recess 141 extending to the bottom of the inner groove 11 and a second recess 142 penetrating the groove wall of the inner groove 11. The second recess 142 is located above the first recess 141. The width of the first recess 141 is greater than or equal to the width of the plurality of second clamping brackets 22, and the width of the second recess 142 is greater than the width of the first recess 141.

[0031] The above structure ensures that there is sufficient clearance when the second clamping frame 22 is opened, closed, or shut down, facilitating the installation of hinges and preventing the second clamping frame 22 from jamming.

[0032] Preferably, in any recess 14, the groove wall of the inner groove 11 has a protrusion 15, and the protrusions 15 are all located below the corresponding second recess 142 and extend from the groove wall of the inner groove 11 to one side of the corresponding first recess 141, such as... Figure 1 As shown, the protrusion 15 extends from the left side of the groove wall to the left side corresponding to the first recess 141; as Figure 1 As shown, of the two ends of the slide bar 21, the end that extends in the same direction as the plurality of protrusions 15 is the first end 211, and the other end is the second end 212.

[0033] When multiple second clamping frames 22 are all located within the second recess 142 and completely cover the corresponding protrusion 15, such as Figure 3 As shown in the figure above, the second end 212 is located in the corresponding limiting blind hole 12. The sum of the length of the first end 211 and the width of the adjacent second clamping frame 22 is greater than or equal to the width of the second recess 142, ensuring that the first clamping frame 13 and the second clamping frame 22 can form a complete limiting structure to limit the loose-leaf.

[0034] like Figure 3As shown in the figure below, when installing or replacing the hinges, if multiple second clamping frames 22 are all located within the first recess 141, the first end 211 is located within the corresponding limiting blind hole 12. The length of the second end 212 is greater than or equal to the straight-line distance from the opening of the limiting blind hole 12 near the second end to the side of the adjacent second clamping frame 22. This ensures that when the first clamping frame 13 and the second clamping frame 22 are separated, the two ends of the slide rod 21 will not detach from the limiting blind hole 12, thus preventing structural failure.

[0035] like Figure 1 As shown, more preferably, a spring 213 is fixed on the end face of the first end 211, and the other end of the spring 213 is located in the limiting blind hole 12 near the first end 211, and is used to provide limiting resistance when the second clamping frames 22 are closed, thereby further ensuring the stability of the structure.

[0036] like Figure 2 and 4 As shown, each of the first clamping frames 13 has a first horizontal section 131, a first arc-shaped section 132, and a toothed recess 133. The upper surface of the first horizontal section 131 is on the same plane as the upper surface of the main binder 1 and extends away from the main binder 1. One end of the first arc-shaped section 132 is fixed to the end of the first horizontal section 131 away from the main binder 1. The other end of the first arc-shaped section 132 is located above the upper surface of the main binder 1 and is fixed with a toothed recess 133. The toothed recess 133 is located directly above the inner groove 11.

[0037] Each of the second clamping frames 22 has a second horizontal section 221, a second arc-shaped section 222, and a toothed protrusion 223. The upper surface of the second horizontal section 221 is tangent to the outer surface of the slide bar 21 and extends away from the slide bar 21 along the tangent. One end of the second arc-shaped section 222 is fixed to the end of the second horizontal section 221 away from the slide bar 21. The other end of the second arc-shaped section 222 is located above the slide bar 21 and is fixed with the toothed protrusion 223. The toothed protrusion 223 is located directly above the slide bar 21.

[0038] When the second clamping frames 22 are in the closed state, the toothed recesses 133 abut against the corresponding toothed protrusions 223, and each second clamping frame 22 forms an arc-shaped closed limiting structure with the corresponding first clamping frame 13 for limiting the loose pages.

[0039] During use, when it is necessary to open the binder to change or add loose pages, simply push the slide bar 21 of the secondary binder 2 gently to move the second clamping frame 22 from the closed state to the open state. Due to the design of the recess 14 and the protrusion 15, the second clamping frame 22 can move stably during opening and closing. Once the second clamping frame 22 has moved to the appropriate position, loose pages can be easily taken out or put in. When closing, push the slide bar 21 to return the second clamping frame 22 to the closed position. The toothed recess 133 and the toothed protrusion 223 abut against each other to form an arc-shaped closing limit structure. At the same time, the spring 213 provides limiting resistance to ensure that the loose pages are firmly clamped and effectively prevent the loose pages from slipping. This rotary locking structure binder is simple to operate, has a stable structure, and greatly improves usage efficiency and user experience.

[0040] like Figure 1 As shown, each of the two limiting blind holes 12 has a countersunk hole 16 on the side away from the inner groove 11; the two ends of the buckle plate 3 are provided with buckles 31, and the two buckles 31 pass through the corresponding countersunk holes 16 and are engaged in the countersunk holes 16. This design makes the installation and removal of the buckle plate 3 extremely convenient. When it is necessary to install the buckle plate 3, simply align the buckles at both ends of the buckle plate 3 with the countersunk holes 16 on the lower surface of the main binder 1, and press gently. The buckles 31 will then engage in the countersunk holes 16, thus fixing the buckle plate 3. Similarly, when it is necessary to remove the buckle plate 3 for maintenance or replacement, simply pry the buckle plate 3 outwards, and the buckles 31 will disengage from the countersunk holes 16, allowing the buckle plate 3 to be easily removed. This detachable connection method not only improves the overall structural strength of the binder but also greatly extends the product's service life.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary locking structure binder, characterized in that, Includes a main binder (1), a secondary binder (2) and a clip plate (3). The secondary binder (2) includes a slide bar (21) and several second clamping frames (22) fixed on the slide bar (21). The upper surface of the main binder (1) is provided with an embedded groove (11) along its extension direction. The two ends of the embedded groove (11) are closed as limiting blind holes (12). The two ends of the slide bar (21) are respectively located in the corresponding limiting blind holes (12). The two limiting blind holes (12) and the embedded groove (11) together form the sliding space and rotation space of the slide bar (21). The main binder (1) has a plurality of first clamps (13) on one side that cooperate with the second clamps (22), and a plurality of recesses (14) on the other side of the main binder (1). The plurality of recesses (14) are used to form clearance spaces for the opening and closing of the plurality of second clamps (22). The buckle plate (3) is detachably disposed on the lower surface of the main binder (1).

2. The rotary locking structure binder according to claim 1, characterized in that, The projection of each of the recesses (14) onto the vertical plane is an inverted step shape. Each of the recesses (14) includes a first recess (141) extending to the bottom of the recess (11) and a second recess (142) penetrating the wall of the recess (11). The second recess (142) is located above the first recess (141). The width of the first recess (141) is greater than or equal to the width of the second clamps (22). The width of the second recess (142) is greater than the width of the first recess (141).

3. The rotary locking structure binder according to claim 2, characterized in that, In any of the recesses (14), the groove wall of the inner groove (11) has a protrusion (15), and the protrusions (15) are all located below the corresponding second recess (142) and extend from the groove wall of the inner groove (11) to one side of the corresponding first recess (141); of the two ends of the slide rod (21), the end that extends in the same direction as the protrusions (15) is the first end (211), and the other end is the second end (212). When multiple second clamps (22) are all located in the second recess (142) and completely cover the corresponding protrusion (15), the second end (212) is located in the corresponding limiting blind hole (12), and the sum of the length of the first end (211) and the width of the adjacent second clamp (22) is greater than or equal to the width of the second recess (142); When multiple second clamps (22) are located in the first recess (141), the first end (211) is located in the corresponding limiting blind hole (12), and the length of the second end (212) is greater than or equal to the straight distance from the opening of the limiting blind hole (12) near the second end to the side of the adjacent second clamp (22).

4. The rotary locking structure binder according to claim 3, characterized in that, A spring (213) is fixed on the end face of the first end (211), and the other end of the spring (213) is located in a limiting blind hole (12) near the first end (211) and is used to provide limiting resistance when the second clamps (22) are closed.

5. The rotary locking structure binder according to any one of claims 1-4, characterized in that, Each of the first clamping frames (13) has a first horizontal section (131), a first arc-shaped section (132), and a toothed recess (133). The upper surface of the first horizontal section (131) is on the same plane as the upper surface of the main binder (1) and extends away from the main binder (1). One end of the first arc-shaped section (132) is fixed to the end of the first horizontal section (131) away from the main binder (1). The other end of the first arc-shaped section (132) is located above the upper surface of the main binder (1) and is fixed with a toothed recess (133). The toothed recess (133) is located directly above the inner groove (11). Each of the second clamping frames (22) has a second horizontal section (221), a second arc-shaped section (222), and a toothed protrusion (223). The upper surface of the second horizontal section (221) is tangent to the outer surface of the slide bar (21) and extends away from the slide bar (21) along the tangent. One end of the second arc-shaped section (222) is fixed to the end of the second horizontal section (221) away from the slide bar (21). The other end of the second arc-shaped section (222) is located above the slide bar (21) and is fixed with a toothed protrusion (223). The toothed protrusion (223) is located directly above the slide bar (21). When the second clamps (22) are in the closed state, the toothed recesses (133) abut against the corresponding toothed protrusions (223), and each second clamp (22) forms an arc-shaped closed limiting structure with the corresponding first clamp (13) for limiting the loose pages.

6. The rotary locking structure binder according to claim 5, characterized in that, Both of the two limiting blind holes (12) are provided with countersunk holes (16) on the side away from the inner groove (11); the two ends of the buckle plate (3) are provided with buckles (31), and the two buckles (31) pass through the corresponding countersunk holes (16) and are engaged in the countersunk holes (16).

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