A clamping device for a file

Abstract

The utility model relates to a kind of clamping device of file folder, it includes: installation base;Mounting portion, including two second end portion's fixed pin of being set in the installation base;Locking portion, including clamping plate and locking plate, clamping plate is provided with two sliding holes, two sliding holes are respectively set on two fixed pins and can slide thereon;The middle part of clamping plate is provided with locking plate mounting hole and locking plate movable hole, locking plate is installed on clamping plate by locking plate mounting hole;Clamping plate is further provided with two elastic strips, two ends are respectively fixed in the two ends of the clamping plate, and elastic strip is located below two sliding holes, locking plate mounting hole and locking plate movable hole;Locking plate is provided with two locking blocks, two locking blocks extend outward and with its distance from locking plate increasing, the relative distance between two locking blocks decreases.When elastic strip is deformed by locking block and is pressed, the portion of its below sliding hole deforms inward and clamps fixed pin.

Description

Technical Field

[0001] This utility model relates to a folder, and more particularly to a folder clamping device. Background Technology

[0002] In scenarios such as office document management, archive archiving, and project data organization, folders are the core tool for holding single sheets of paper. The papers in these scenarios are usually independent documents, such as contract attachments, report drafts, and design sketches. They need to ensure stability when stacked to prevent misalignment, scattering, or edge damage during handling and flipping, while also meeting the high-frequency need for quick retrieval and return of individual sheets.

[0003] Existing folders typically use a ring to hold paper. However, when the paper is placed in the ring, it can slide freely around the ring. When moving the folder, the paper is prone to sliding inside the ring, causing continuous friction with the inside of the ring and adjacent papers. After long-term use, the paper is prone to tearing and rough edges. Utility Model Content

[0004] Based on this, the present invention provides a folder clamping device, which includes: The mounting base includes a base plate, the base plate having a first end and a second end; The mounting section includes two fixing pins erected at the second end of the mounting base; The locking part includes a clamping plate and a locking plate; each end of the clamping plate is provided with a sliding hole, which is respectively fitted onto two fixing pins and can slide on the fixing pins; one side of the clamping plate is rotatably connected to the locking plate, and the other side of the clamping plate is provided with two elastic strips, the two ends of which are respectively fixed to the two ends of the clamping plate. Two locking blocks are arranged opposite each other on the locking plate. The two locking blocks extend outward from the locking plate and their opposite sides form an acute angle with the locking plate. When the locking plate rotates on the clamping plate toward the locking plate, the two locking blocks can respectively press against the two elastic strips.

[0005] When the locking plate rotates on the clamping plate toward the locking plate, the two locking blocks can respectively press against the two elastic strips. As the locking plate continues to rotate, the distance between the two locking blocks increases, causing the elastic strips to be pressed against the locking blocks and thus deform. When the part of the elastic strip located below the movable hole of the locking plate is pushed outward, due to the elastic effect, the part of the elastic strip located below the sliding hole deforms inward, making the distance between the two elastic strips smaller, thereby causing the elastic strips to clamp the fixing pin.

[0006] Furthermore, the locking block is also provided with a protrusion, and when the locking plate rotates to make the elastic strip pass over the protrusion of the locking block, the elastic strip is locked.

[0007] Because the locking block has a protrusion, when the locking plate continues to rotate and the elastic strip passes over the protrusion of the locking block, the elastic strip is locked and no longer rebounds, thereby fixing the position of the clamping strip on the fixing pin to fix the position of the paper in the mounting part.

[0008] Furthermore, two locking plate mounting plates are respectively erected at both ends of the locking plate mounting hole facing the back of the locking plate, and a circular through hole is provided on the locking plate mounting plate; two opposing locking plate fixing plates are erected on the locking plate, and a locking plate fixing cylinder protruding outward is provided on the locking plate fixing plate respectively. The locking plate fixing cylinder passes through the circular through hole on the locking plate mounting plate, so that the locking plate can rotate on the clamping plate about the circular through hole as the axis.

[0009] Furthermore, the top of the retaining pin is conical to facilitate punching holes in the paper and mounting the paper to the retaining pin.

[0010] Furthermore, the mounting part also includes a clamping ring with a circular cross-section, which can cooperate with the fixing pin to form a closed ring structure.

[0011] Furthermore, a clamping ring fixing part is provided at the first end of the mounting base, and the clamping ring fixing part is a ring-shaped structure with a through hole; The clamping ring includes a horizontal portion and a vertical portion connected together. The horizontal portion of the clamping ring includes a fixed section that passes through a through hole in the clamping ring fixing portion and can rotate around its axis. The vertical portion is connected to the fixed section of the horizontal portion and extends upward perpendicular to the horizontal portion and bends in the direction of the clamping ring to form a hook-shaped structure. When the clamping ring rotates around the clamping ring fixing portion, the vertical portion of the clamping ring can engage with the fixing pin.

[0012] Furthermore, a vertical plate is erected in the middle of the mounting base, and a cantilever mounting hole is provided on the vertical plate; The mounting section also includes a leaf spring and a cantilever; The horizontal portion of the clamping ring also includes a moving section connected to the fixed section. The moving section extends from the fixed section toward the vertical plate of the mounting base and bends to form a rolling section parallel to the vertical plate. The leaf spring is disposed on the base plate of the mounting base, with one end fixed to the base plate of the mounting base and the other end abutting against the horizontal part of the clamping ring, providing the clamping ring with a force that rotates away from the mounting base; The cantilever includes a cantilever mounting portion mounted on a cantilever mounting hole in the upright plate of the mounting base and a rocker arm; the cantilever is rotatable about the axis of the cantilever mounting hole, and the rocker arm has an eccentricity with the cantilever mounting hole; a roller is also sleeved on the end of the rocker arm near the cantilever mounting hole, and the roller is tangent to the rolling section of the horizontal part of the clamping ring and can roll on it.

[0013] When the rocker arm is rotated toward the mounting base, due to the eccentricity between the roller on the rocker arm and the cantilever mounting hole, the roller rolls toward the middle of the rolling section of the horizontal part of the clamping ring and causes the clamping ring to rotate toward the mounting base, so that the clamping ring and the fixing pin cooperate to form a closed ring structure.

[0014] Furthermore, a protruding ring is provided in the middle of the rolling section.

[0015] When the roller rolls over the ring on the rolling section of the horizontal part of the clamping ring, the resistance between the roller and the ring cancels out the torque of the leaf spring, thus locking the rotation of the clamping ring.

[0016] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a folder with a clamping device. Figure 2 This is a schematic diagram of the clamping device for the folder; Figure 3 This is a structural diagram of the installation section; Figure 4 This is a schematic diagram of the locking mechanism; Figure 5 This is a schematic diagram of the clamping plate. Figure 6 This is a schematic diagram of the locking plate and the elastic strip. Detailed Implementation

[0018] Please see Figure 1 and Figure 2A folder clamping device according to an embodiment of the present invention includes a mounting base 1, a mounting part 2, and a locking part 3. The mounting base 1 is fixed in a folder A. The mounting part 2 is disposed on the mounting base 1 and is used to mount paper into the folder A, and the paper can move in the mounting part 2 in a direction perpendicular to the mounting base 1. The locking part 3 is disposed on the mounting part 2 and is used to fix the position of the paper within the mounting part 2.

[0019] Please see Figure 3 The mounting base 1 includes a base plate, which has a first end and a second end. A vertical plate 12 is erected in the middle of the base plate, and a clamping ring fixing part 14 is erected in the first end. A cantilever mounting hole 121 is provided on the vertical plate 12; the clamping ring fixing part 14 is a ring structure with a through hole.

[0020] The mounting part 2 includes a fixing pin 21, a clamping ring 22, a leaf spring 23, and a cantilever 24.

[0021] The fixing pin 21 is a cylindrical pin structure, and there are two of them, which are erected at the second end of the mounting base 1.

[0022] The clamping ring 22 includes a horizontal portion and a vertical portion 222 connected together, and its cross-section is annular. The horizontal portion of the clamping ring 22 includes a fixed section 2211 and a moving section 2212 connected together. The fixed section 2211 passes through the through hole of the clamping ring fixing portion 14 and can rotate around its axis. The moving section 2212 extends from the fixed section 2211 toward the vertical plate 12 of the mounting base 1 and bends to form a rolling section 2213 parallel to the vertical plate 12. A ring 22 with a protrusion 3431 is also provided in the middle of the rolling section 2213. 14; The vertical portion 222 is connected to the fixed section 2211 of the horizontal portion and extends upward perpendicular to the horizontal portion and bends in the direction of the clamping ring 22 to form a hook-shaped structure; when the clamping ring 22 rotates around the clamping ring fixed portion 14, the vertical portion 222 of the clamping ring 22 can cooperate with the fixing pin 21, so that the clamping ring 22 and the fixing pin 21 cooperate to form a closed ring structure, so that the paper is installed in the ring structure formed by the clamping ring 22 and the fixing pin 21, and the paper is installed in the folder A.

[0023] The leaf spring 23 is disposed on the base plate of the mounting base 1, with one end fixed to the base plate of the mounting base 1 and the other end abutting against the horizontal part of the clamping ring 22, providing the clamping ring 22 with a force that rotates away from the mounting base 1.

[0024] The cantilever 24 is a plate-shaped structure, comprising a cantilever mounting portion 241 mounted on a cantilever mounting hole 121 in the upright plate 12 of the mounting base 1 and a rocker arm 242. The cantilever 24 is rotatable about the axis of the cantilever mounting hole 121, and the rocker arm 242 has an eccentricity with the cantilever mounting hole 121. A roller 2421 is also fitted on the end of the rocker arm 242 near the cantilever mounting hole 121. The roller 2421 is tangential to the rolling section 2213 of the horizontal part of the clamping ring and can roll on it. Due to the action of the leaf spring 23, the clamping ring 22 and the roller 2421 are always kept in contact. When the cantilever 24 is rotated toward the mounting base 1, due to the eccentricity between the roller 2421 on the rocker arm 242 and the cantilever mounting hole 121, the roller 2421 rolls toward the middle of the rolling section 2213 of the horizontal part of the clamping ring 22, causing the clamping ring 22 to rotate toward the mounting base 1. The clamping ring 22 can cooperate with the fixing pin 21 to form a closed ring structure. When the roller 2421 rolls past the ring 2214 on the rolling section 2213 of the horizontal part of the clamping ring, the resistance between the roller 2421 and the ring 2214 cancels out the torque of the leaf spring 23, thus locking the rotation of the clamping ring 22.

[0025] Please see Figures 4 to 6 The locking part 3 includes a clamping plate 32 and a locking plate 34. One side of the clamping plate 32 is rotatably connected to the locking plate 34, and the other side of the clamping plate 32 is provided with two elastic strips 324. The two ends of the clamping plate 32 are respectively provided with rectangular sliding holes 321, which are respectively fitted onto the two fixing pins 21 and can slide on the fixing pins 21. The middle part of the clamping plate 32 is also provided with a locking plate mounting hole 322 and a locking plate movable hole 323. The locking plate 34 is mounted on the clamping plate 32 through the locking plate mounting hole 322 and can rotate on the clamping plate 32. Two locking plate mounting plates 341 are respectively erected at both ends of the locking plate mounting hole 322 facing the back of the locking plate 34. A circular through hole 3412 is provided on the locking plate mounting plate 341. The two ends of the elastic strip 324 are respectively fixed to the two ends of the clamping plate 32, and the two elastic strips 324 are located below the two sliding holes 321, the locking plate mounting hole 322 and the locking plate movable hole 323.

[0026] The locking plate 34 is provided with two opposing locking plate fixing plates 342. Each locking plate fixing plate 342 is provided with an outwardly protruding locking plate fixing cylinder 3421. The locking plate fixing cylinder 3421 passes through the circular through hole 3412 on the locking plate mounting plate 341 to install the locking plate 34 on the clamping plate 32, and allows the locking plate 34 to rotate on the clamping plate 32 about the circular through hole 3412 as the axis. The locking plate 34 is also provided with two opposing locking blocks 343. The two locking blocks 343 extend outward from the locking plate 34, and the opposing sides of the two locking blocks 343 form an acute angle with the locking plate 34. The locking blocks 343 are also provided with a protrusion 3431. When the locking plate 34 rotates on the clamping plate 32 toward the direction of the locking plate 34, the two locking blocks 343 can respectively press against the two elastic strips 324. As the locking plate 34 continues to rotate, the distance between the two locking blocks 343 increases, causing the elastic strips 324 to be pressed against the locking blocks 343 and thus deform. When the portion of the elastic strip 324 located below the movable hole 323 of the locking plate is pushed outward, due to the elastic effect, the elastic strip 324 is located in the... The portion below the sliding hole 321 deforms inward, reducing the distance between the two elastic strips 324. This causes the elastic strips 324 to clamp the fixing pin 21. Since the locking block 343 is provided with a protrusion 3431, when the locking plate 34 continues to rotate and the elastic strip 324 passes over the protrusion 3431 of the locking block 343, the elastic strip 324 is locked and no longer rebounds, thereby fixing the position of the clamping strip on the fixing pin 21 to fix the position of the paper in the mounting part 2.

[0027] Preferably, the top of the fixing pin 21 is conical to facilitate punching holes in the paper and mounting the paper onto the fixing pin 21.

[0028] In actual use, first, the paper is passed through the fixing pin 21, then the clamping plate 32 is fitted onto the fixing pin 21 and positioned above the paper; rotate the cantilever 24 so that the clamping ring 22 engages with the fixing pin 21 and locks; finally, rotate the locking plate 34 to fix the clamping plate 32, thereby fixing the paper in the mounting part 2.

[0029] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments and claims of this application are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that, unless otherwise stated, “a plurality” means two or more; the terms “first,” “second,” “third,” etc., are used only to distinguish and not to describe a particular order or sequence, nor should they be construed as indicating or implying relative importance. The term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items. When the above description relates to drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. In the description of this application, those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A folder clamping device, characterized in that: include: The mounting base includes a base plate, the base plate having a first end and a second end; The mounting section includes two fixing pins erected at the second end of the mounting base; The locking part includes a clamping plate and a locking plate; each end of the clamping plate is provided with a sliding hole, and the two sliding holes are respectively fitted onto the two fixing pins and can slide on the fixing pins; one side of the clamping plate is rotatably connected to the locking plate, and the other side of the clamping plate is provided with two elastic strips, the two ends of the elastic strips being fixed to the two ends of the clamping plate respectively. Two locking blocks are arranged opposite each other on the locking plate, the two locking blocks extend outward from the locking plate and the opposite side of the two locking blocks forms an acute angle with the locking plate; When the locking plate rotates on the clamping plate toward the direction of the locking plate, the two locking blocks can respectively press against the two elastic strips.

2. The folder clamping device according to claim 1, characterized in that: The locking block is also provided with a protrusion. When the locking plate rotates and the elastic strip passes over the protrusion of the locking block, the elastic strip is locked.

3. The folder clamping device according to claim 2, characterized in that: Two locking plate mounting plates are respectively erected at both ends of the locking plate mounting hole facing the back of the locking plate. A circular through hole is provided on the locking plate mounting plate. Two opposing locking plate fixing plates are erected on the locking plate. A locking plate fixing cylinder protruding outward is provided on the locking plate fixing plate. The locking plate fixing cylinder passes through the circular through hole on the locking plate mounting plate, allowing the locking plate to rotate on the clamping plate around the circular through hole as the axis.

4. The folder clamping device according to claim 3, characterized in that: The top of the fixing pin is conical.

5. The folder clamping device according to claim 4, characterized in that: The mounting part also includes a clamping ring with a circular cross-section, which can cooperate with the fixing pin to form a closed ring structure.

6. The folder clamping device according to claim 5, characterized in that: The first end of the mounting base is provided with a clamping ring fixing part, which is a ring-shaped structure with a through hole; The clamping ring includes a horizontal portion and a vertical portion connected together. The horizontal portion of the clamping ring includes a fixed section that passes through a through hole in the clamping ring fixing portion and can rotate around its axis. The vertical portion is connected to the fixed section of the horizontal portion and extends upward perpendicular to the horizontal portion and bends in the direction of the clamping ring to form a hook-shaped structure. When the clamping ring rotates around the clamping ring fixing portion, the vertical portion of the clamping ring can engage with the fixing pin.

7. The folder clamping device according to claim 6, characterized in that: A vertical plate is erected in the middle of the base plate of the mounting base, and a cantilever mounting hole is provided on the vertical plate; The mounting section also includes a leaf spring and a cantilever; The horizontal portion of the clamping ring also includes a moving section connected to the fixed section. The moving section extends from the fixed section toward the vertical plate of the mounting base and bends to form a rolling section parallel to the vertical plate. The leaf spring is disposed on the base plate of the mounting base, with one end fixed to the base plate of the mounting base and the other end abutting against the horizontal part of the clamping ring, providing the clamping ring with a force that rotates away from the mounting base; The cantilever includes a cantilever mounting portion mounted on a cantilever mounting hole in the upright plate of the mounting base and a rocker arm; the cantilever is rotatable about the axis of the cantilever mounting hole, and the rocker arm has an eccentricity with the cantilever mounting hole; a roller is also sleeved on the end of the rocker arm near the cantilever mounting hole, and the roller is tangent to the rolling section of the horizontal part of the clamping ring and can roll on it.

8. The folder clamping device according to claim 7, characterized in that: A protruding ring is also provided in the middle of the rolling section.

Images