Bill binding assist device
By using a bidirectional threaded rod drive and a design that allows for synchronous movement of inclined blocks, the problems of cumbersome operation and uneven fixation in existing document binding aids are solved, achieving efficient and uniform fixation of documents and improving the stability and accuracy of punching.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 东营科技职业学院
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-01
AI Technical Summary
The existing document binding aid is cumbersome to operate, requiring the simultaneous rotation of the knobs on both sides, which can easily cause the clamping plate to tilt and be unevenly fixed, affecting the punching accuracy.
The system employs a bidirectional threaded rod drive, which moves synchronously through the inclined blocks, causing the trapezoidal pressure block and the upper clamping plate to descend. Combined with the spring's rebound force, this achieves uniform pressing of the upper clamping plate, preventing tilting and uneven force distribution.
It improves binding efficiency, ensures that the documents are fixed and evenly stressed, prevents drilling displacement and edge deformation, and enhances the stability and accuracy of punching.
Smart Images

Figure CN224183214U_ABST
Abstract
Description
A document binding aid Technical Field
[0001] This utility model relates to the technical field of document binding aids, specifically a document binding aid. Background Technology
[0002] The document binding aid is mainly used to physically hold and fix documents during binding so that subsequent punching, threading, or heat sealing operations can be performed. Its core function is to ensure that the documents remain stably aligned during processing and to avoid displacement or misalignment.
[0003] In existing technologies, when assisting in the binding of documents, holes need to be punched. Therefore, a document binding auxiliary fixing clip, also known as a document drilling auxiliary fixing clip, is used. By rotating the knobs on both sides, the knobs are lowered under the action of the threaded rod, allowing the upper clip to be pressed down and lowered together with the lower clip to clamp the document. However, in actual use, this auxiliary fixing device is cumbersome to operate, requiring the knobs on both sides to be rotated separately to make them lower synchronously. This is inefficient and the clip is prone to tilting due to inconsistent rotation of the knobs on both sides. Therefore, an improved document binding auxiliary device is needed to solve the above problems. Summary of the Invention
[0004] The purpose of this invention is to provide a document binding aid to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a document binding aid, comprising a frame, a lower clamping shell fixedly installed on the front of the frame, a rotation limiting seat fixedly installed on the top of the frame, a bidirectional threaded rod rotatably installed inside the rotation limiting seat, and auxiliary fixing mechanisms provided inside and on the back of the frame.
[0006] Preferably, the auxiliary fixing mechanism includes a threaded connecting block, which is threadedly installed on the outside of the bidirectional threaded rod. A beveled block is fixedly installed at the bottom of the threaded connecting block. A limit rod seat is fixedly installed on the back of the frame. A connecting slider is slidably installed on the outside of the limit rod seat. A trapezoidal pressure block is fixedly installed on the front of the connecting slider. An upper clamping plate is fixedly installed on the front of the trapezoidal pressure block. A spring is fixedly installed on the inner top of the limit rod seat.
[0007] Preferably, the spring is disposed outside the limiting rod seat, and the end of the spring away from the top of the limiting rod seat is fixedly installed with the top of the connecting slider.
[0008] Preferably, a groove is provided at the corresponding position of the frame and the threaded connecting block, and the threaded connecting block is slidably installed inside the groove provided inside the frame.
[0009] Preferably, a groove is provided at the corresponding position of the frame and the connecting slider, and the connecting slider is slidably installed inside the groove provided inside the frame.
[0010] Preferably, there are two of each of the limiting rod seats and springs, and the two limiting rod seats and springs are symmetrically distributed on the back of the frame.
[0011] Preferably, both the upper clamping plate and the lower clamping shell have perforated slots inside, and the perforated slots inside the upper clamping plate and the lower clamping shell are positioned correspondingly.
[0012] Compared with the prior art, the present invention provides a document binding aid, which has the following beneficial effects:
[0013] This document binding aid, through its auxiliary fixing mechanism, utilizes a bidirectional threaded rod to drive the inclined block synchronously during use. This, in turn, uses the descending trapezoidal pressure block and upper clamping plate to assist in binding and fixing the documents. The bidirectional threaded rod drive increases fixing efficiency without causing tilting, avoiding the limitations of dual-knob rotation and preventing insufficient pressure in the middle area. The fixed documents are evenly stressed, preventing drilling displacement. Furthermore, the evenly distributed clamping force prevents thin documents from being squeezed, deformed, or folded at the edges. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 is a schematic diagram of the appearance structure of this utility model;
[0016] Figure 2 is a schematic diagram of the rear view of the present invention.
[0017] Figure 3 is a schematic diagram of the external structure of the auxiliary fixing mechanism of this utility model;
[0018] Figure 4 is a rear exploded view of the auxiliary fixing mechanism of this utility model.
[0019] In the diagram: 1. Frame; 2. Auxiliary fixing mechanism; 21. Threaded connecting block; 22. Inclined block; 23. Limiting rod seat; 24. Connecting slider; 25. Trapezoidal pressure block; 26. Upper clamping plate; 27. Spring; 3. Lower clamping shell; 4. Rotating limiting seat; 5. Bidirectional threaded rod. Detailed Implementation
[0020] 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.
[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0022] Example 1:
[0023] Please refer to Figures 1-4. This utility model provides a technical solution: a document binding aid, including a frame 1, a lower clamping shell 3 fixedly installed on the front of the frame 1, a rotation limiting seat 4 fixedly installed on the top of the frame 1, a bidirectional threaded rod 5 rotatably installed inside the rotation limiting seat 4, and auxiliary fixing mechanisms 2 provided inside and on the back of the frame 1.
[0024] Furthermore, the auxiliary fixing mechanism 2 includes a threaded connecting block 21, which is threaded onto the outside of the bidirectional threaded rod 5. A beveled block 22 is fixedly installed at the bottom of the threaded connecting block 21. A limit rod seat 23 is fixedly installed on the back of the frame 1. A connecting slider 24 is slidably installed on the outside of the limit rod seat 23. A trapezoidal pressure block 25 is fixedly installed on the front of the connecting slider 24. An upper clamping plate 26 is fixedly installed on the front of the trapezoidal pressure block 25. A spring 27 is fixedly installed on the inner top of the limit rod seat 23. Through the auxiliary fixing mechanism 2, the trapezoidal pressure block 25 and the upper clamping plate 26 can descend stably and normally without tilting. At the same time, the force applied to the trapezoidal pressure block 25 and the upper clamping plate 26 is uniform, and there will be no situation where the middle area is not compacted, effectively avoiding drilling displacement.
[0025] Furthermore, the spring 27 is disposed outside the limiting rod seat 23, and the end of the spring 27 away from the top of the limiting rod seat 23 is fixedly installed on the top of the connecting slider 24. By installing the spring 27 on the inner side of the top of the limiting rod seat 23 and the top of the connecting slider 24, the elastic force of the spring 27 can be normally applied to the trapezoidal pressure block 25, so that the trapezoidal pressure block 25 can normally rebound to the top.
[0026] Furthermore, a groove is provided at the corresponding position of the frame 1 and the threaded connecting block 21, and the threaded connecting block 21 is slidably installed inside the groove provided inside the frame 1. The groove provided inside the frame 1 limits the threaded connecting block 21, so that the threaded connecting block 21 can slide stably without deviation.
[0027] Furthermore, a groove is provided at the corresponding position of the frame 1 and the connecting slider 24, and the connecting slider 24 is slidably installed inside the groove inside the frame 1. By using the connecting slider 24 sliding inside the groove inside the frame 1, the connecting slider 24 can stably drive the trapezoidal pressure block 25 to rise and fall.
[0028] Furthermore, there are two limit rod seats 23 and two springs 27, and the two limit rod seats 23 and springs 27 are symmetrically distributed on the back of the frame 1. The symmetrical design of the limit rod seats 23 and springs 27 can ensure the elastic force of the trapezoidal pressure block 25 and improve stability.
[0029] Furthermore, both the upper clamping plate 26 and the lower clamping shell 3 have punching slots inside, and the positions of the punching slots inside the upper clamping plate 26 and the lower clamping shell 3 correspond. By using the punching slots inside the upper clamping plate 26 and the lower clamping shell 3, the tickets can be properly fixed and then punched.
[0030] In actual operation, when this device is used, the neatly stacked tickets are placed inside the lower clamping shell 3 and at the bottom of the upper clamping plate 26. At this time, the bidirectional threaded rod 5 is rotated, causing the threaded connecting block 21 to move. The inclined block 22 then moves towards each other, pushing the trapezoidal pressure block 25 down. The trapezoidal pressure block 25 will cause the upper clamping plate 26 to descend, pressing down on the tickets and fixing them tightly. At this time, the tickets can be drilled through the perforation grooves inside the lower clamping shell 3 and the upper clamping plate 26. Using the elastic force of the spring 27, when the bidirectional threaded rod 5 is rotated in the opposite direction, the trapezoidal pressure block 25 can return to its initial position normally when the inclined block 22 returns to its original position.
[0031] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A document binding aid, comprising a frame (1), characterized in that: The lower clamping shell (3) is fixedly installed on the front of the frame (1), and the rotating limiting seat (4) is fixedly installed on the top of the frame (1). A two-way threaded rod (5) is rotatably installed inside the rotating limiting seat (4). An auxiliary fixing mechanism (2) is provided inside and on the back of the frame (1).
2. A document binding aid according to claim 1, wherein: The auxiliary fixing mechanism (2) includes a threaded connecting block (21), which is threadedly installed on the outside of the bidirectional threaded rod (5). A beveled block (22) is fixedly installed at the bottom of the threaded connecting block (21). A limit rod seat (23) is fixedly installed on the back of the frame (1). A connecting slider (24) is slidably installed on the outside of the limit rod seat (23). A trapezoidal pressure block (25) is fixedly installed on the front of the connecting slider (24). An upper clamping plate (26) is fixedly installed on the front of the trapezoidal pressure block (25). A spring (27) is fixedly installed on the inner side of the top of the limit rod seat (23).
3. A document binding aid according to claim 2, wherein: The spring (27) is located outside the limiting rod seat (23), and the end of the spring (27) away from the top of the limiting rod seat (23) is fixedly installed with the top of the connecting slider (24).
4. A document binding aid according to claim 2, characterized in that: The frame (1) and the threaded connecting block (21) are provided with grooves at corresponding positions, and the threaded connecting block (21) is slidably installed inside the grooves provided inside the frame (1).
5. A document binding aid according to claim 2, characterized in that: The frame (1) and the connecting slider (24) are provided with slots at corresponding positions, and the connecting slider (24) is slidably installed inside the slots provided inside the frame (1).
6. A document binding aid according to claim 2, wherein: Two of each of the limiting rod seats (23) and springs (27) are provided, and the two limiting rod seats (23) and springs (27) are symmetrically distributed on the back of the frame (1).
7. A document binding aid according to claim 2, characterized in that: The upper clamping plate (26) and the lower clamping shell (3) are both provided with perforated slots, and the perforated slots in the upper clamping plate (26) and the lower clamping shell (3) are in corresponding positions.