Glass cutting auxiliary device
By designing the mechanical linkage of components such as the base, fixed handle, and positioning plate, precise alignment and uniform force application are achieved during the glass cutting process, solving the problem of breakage caused by manual breaking in traditional glass cutting, and improving cutting efficiency and precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-07
AI Technical Summary
Existing glass cutting aids rely on manual force during the breaking process, making it difficult to control the force and direction, which can easily lead to glass breakage.
A glass cutting auxiliary device was designed, comprising a base, a fixed handle, a positioning plate, a sliding plate, and a spring. It achieves precise positioning and uniform force application through mechanical linkage, and uses a stud to press down vertically along the cutting seam, replacing manual breaking operation and ensuring the straightness and uniformity of the cutting path.
It significantly reduces the risk of breakage when glass breaks, improves cutting efficiency and precision, simplifies grooving operations, and ensures consistency of the cutting path.
Smart Images

Figure CN224091794U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of glass cutting technology, specifically to a glass cutting auxiliary device. Background Technology
[0002] Glass cutting auxiliary devices are mechanical tools designed to improve the accuracy, safety and efficiency of glass cutting. They are mainly used to solve problems such as inaccurate positioning, uneven force application and easy breakage in traditional manual cutting.
[0003] Existing glass cutting aids are generally guide rulers or guide plates. When using them, one hand needs to hold the guide ruler while the other hand uses the cutting blade to cut. During the cutting process, the glass needs to be repeatedly slid before it can be broken off by hand. In this process, the breaking step relies on manual force, which is difficult to control in terms of force and direction, and is prone to causing the glass to shatter due to stress concentration. Utility Model Content
[0004] Based on this, the purpose of this utility model is to provide a glass cutting auxiliary device to solve the technical problem that the glass breaking step relies on manual force application, which makes it difficult to control the force and direction and easily causes the glass to break due to stress concentration.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a glass cutting auxiliary device, comprising a base, wherein a fixed handle is fixedly connected to the base by bolts, a groove is provided inside the fixed handle, a sliding plate is slidably connected inside the groove, a positioning plate is slidably connected inside the sliding plate, a guide groove is provided inside the positioning plate, and an insertion hole is provided at one end of the positioning plate, and a spring is provided between the positioning plate and the groove.
[0006] By adopting the above technical solution, the base serves as the core load-bearing structure. The handle is fixed with bolts to ensure the overall rigidity of the device and avoid displacement caused by cutting vibration. At the same time, the fixed handle provides an operating grip point, making it easy to control the movement or positioning of the device with one hand.
[0007] Furthermore, a base plate is fixedly connected to the bottom of the base, and a pad is fixedly connected to the front side of the base plate.
[0008] By adopting the above technical solution, the base plate serves as a support platform for the glass, providing a horizontal reference surface to ensure that the glass is placed flat and to avoid cutting deviations caused by tilting. The rigid connection between the base plate and the base enhances the overall torsional resistance of the device and resists lateral cutting forces.
[0009] Furthermore, sliding blocks are slidably connected to both ends of the base plate, and the sliding blocks are rotatably connected to pressure plates via torque shafts.
[0010] By adopting the above technical solution, the sliding block slides along the base plate, which can adapt to different sizes of glass widths, expand the applicable range of the device, and the limiting of the sliding block ensures that the position is fixed after adjustment, avoiding loosening of the clamp.
[0011] Furthermore, a pressure block is slidably connected to the top front side of the base, and a stud is threaded onto the pressure block.
[0012] By adopting the above technical solution, the pressure block slides along the base to adjust the lateral position of the stud, adapting to different cutting kerf length requirements. The sliding track can be marked with scales to facilitate quick positioning of the stud and the insertion hole alignment.
[0013] Furthermore, a crossbar is fixedly connected to the rear side of the pressure block, and a rotating plate is movably connected to the crossbar, with the rotating plate and the base being rotatably connected.
[0014] By adopting the above technical solution, the crossbar converts the rotational motion of the rotating plate into the linear downward pressure of the pressure block, thereby achieving mechanical force amplification.
[0015] Furthermore, a movable handle is movably connected to the other end of the rotating plate, and the movable handle is rotatably connected to the base.
[0016] By adopting the above technical solutions, the active handle provides a comfortable grip surface that conforms to ergonomics, reduces operator fatigue, and the handle surface is provided with anti-slip texture or soft rubber layer to enhance grip stability and prevent slippage when force is applied.
[0017] Furthermore, there are two sets of sliding blocks and pressure plates, and the two sets of sliding blocks and pressure plates are arranged symmetrically.
[0018] By adopting the above technical solution, two sets of sliding blocks and pressure plates are symmetrically distributed on both sides of the glass to form a balanced clamping force, avoiding the tilting or displacement of the glass caused by unilateral pressure. The symmetrical clamping counteracts the lateral thrust of the cutting tool, further improving the straightness accuracy of the cutting path.
[0019] In summary, the present invention has the following main advantages:
[0020] 1. This utility model sets up a base, a fixed handle, a socket, a pressure block and a stud. The socket on the positioning plate and the stud on the pressure block are precisely aligned. When the movable handle is pressed, the pressure block drives the stud to press down vertically along the cutting seam. Through mechanical linkage, the manual pressing force is converted into linear and uniform force, which replaces the traditional manual breaking operation. The stud acts directly on the cutting seam, and the pressure spreads along the predetermined path, avoiding stress concentration and significantly reducing the risk of breakage when the glass breaks.
[0021] 2. This utility model, by setting a positioning plate, a guide groove and an insertion hole, provides a rigid guide rail for the cutting blade through the guide groove on the positioning plate, ensuring the straightness accuracy of the cutting path. The sliding plate and spring cooperate to keep the positioning plate stable during the cutting process and avoid deviation. The design of the insertion hole facilitates the subsequent alignment of the studs and ensures the precise connection between the cutting seam and the force application point, thereby simplifying the grooving operation and improving cutting efficiency and consistency. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0023] Figure 2 This is a cross-sectional three-dimensional structural diagram of the base of this utility model;
[0024] Figure 3 This is a three-dimensional structural diagram of the positioning plate of this utility model;
[0025] Figure 4 This is a three-dimensional structural diagram of the sliding block of this utility model;
[0026] Figure 5 This is a partial cross-sectional view of the fixed handle of this utility model.
[0027] In the diagram: 1. Base; 2. Fixed handle; 3. Groove; 4. Sliding plate; 5. Positioning plate; 6. Guide groove; 7. Insertion hole; 8. Spring; 9. Base plate; 10. Pad; 11. Sliding block; 12. Pressure plate; 13. Pressure block; 14. Stud; 15. Crossbar; 16. Rotating plate; 17. Movable handle. Detailed Implementation
[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0029] A glass cutting auxiliary device, such as Figures 1-5As shown, the device includes a base 1, to which a fixed handle 2 is fixedly connected by bolts. The fixed handle 2 has a groove 3 inside, and a sliding plate 4 is slidably connected inside the groove 3. A positioning plate 5 is slidably connected inside the sliding plate 4. The positioning plate 5 has a guide groove 6 inside, and an insertion hole 7 at one end. A spring 8 is provided between the positioning plate 5 and the groove 3. The groove 3 provides a linear motion track for the sliding plate 4, allowing for lateral adjustment of the positioning plate 5's installation position to adapt to different cutting path requirements. The clearance fit between the sliding plate 4 and the groove 3 reduces frictional resistance, resulting in smoother operation. The guide groove 6 serves as a guide track for the cutting blade, limiting the blade path and ensuring the straightness and accuracy of the cut. The insertion hole 7 aligns with the subsequent stud 14, providing a precise pressure transmission interface for mechanically breaking the glass. The spring 8 applies preload between the positioning plate 5 and the groove 3, maintaining the stability of the positioning plate 5 during the cutting process. The spring 8 allows the positioning plate 5 to elastically displace when pushed by external force, preventing hard friction damage to the glass surface.
[0030] See Figure 1 , Figure 2 and Figure 4 The base 1 is fixedly connected to the bottom plate 9, and the base plate 9 is fixedly connected to the front side of the pad 10. The pad 10 is made of rubber or silicone to increase the friction coefficient of the glass contact surface and prevent the glass from sliding during cutting. The pad 10 forms a flexible support for the glass edge, buffers the cutting impact force, and reduces the risk of edge breakage.
[0031] See Figure 1 , Figure 2 and Figure 4 The two ends of the base plate 9 are slidably connected to sliding blocks 11. The sliding blocks 11 are rotatably connected to pressure plates 12 via a torque shaft. The torque shaft provides constant downward pressure. The pressure plates 12 press the glass edge with a lever principle, and the clamping force is evenly distributed. The inner side of the pressure plates 12 is provided with anti-slip texture or soft rubber layer to enhance clamping stability and avoid displacement caused by uneven force on the glass.
[0032] See Figure 1 and Figure 2 A pressure block 13 is slidably connected to the top front side of the base 1. A stud 14 is threaded onto the pressure block 13. The stud 14 is screwed into the pressure block 13 by the thread, which can precisely control the depth of its insertion into the insertion hole 7 to adapt to different glass thicknesses. The tip of the stud 14 is equipped with a hard alloy head, which concentrates the force on the cutting seam, reduces the force application area, and improves the fracture efficiency.
[0033] See Figure 1 and Figure 2A crossbar 15 is fixedly connected to the rear side of the pressure block 13. A rotating plate 16 is movably connected to the crossbar 15. The rotating plate 16 is rotatably connected to the base 1. The hinge between the crossbar 15 and the pressure block 13 allows the pressure block 13 to adapt to the angle deviation when sliding, avoiding jamming. The rotating plate 16 rotates around the axis of the base 1 to form a two-stage lever system, further amplifying the manual pressing force and making operation easier.
[0034] See Figure 1 and Figure 2 The other end of the rotating plate 16 is movably connected to a movable handle 17. The movable handle 17 is rotatably connected to the base 1. Pressing the movable handle 17 drives the rotating plate 16 to rotate, and the pressure is transmitted to the pressure block 13 through the crossbar 15, so as to achieve linear and controllable force application. The stroke of the movable handle 17 can be limited, and a limit pin can be set to avoid excessive pressure causing the glass to break due to overload.
[0035] See Figure 1 and Figure 2 There are two sets of sliding blocks 11 and pressure plates 12. The two sets of sliding blocks 11 and pressure plates 12 are symmetrically arranged. The position of the sliding blocks 11 can be adjusted independently by the two sets of pressure plates 12 to adapt to the clamping requirements of non-rectangular glass. The torque axis of the pressure plate 12 allows the angle to adapt to ensure the contact fit of different edge shapes.
[0036] The implementation principle of this utility model is as follows: First, the glass plate is placed on the pad 10 on the front side of the base plate 9 to form a stable support surface. The symmetrically arranged sliding blocks 11 slide along the base plate. After adjusting to the edge of the glass, the pressure plate 12 is pressed down by the torsion shaft to complete the double-sided clamping and fixing. The slidable positioning plate 5 is inserted into the sliding plate 4. The spring 8 automatically presses the sliding plate to fix the positioning plate 5 without displacement. The guide groove 6 serves as the guide rail for the cutting blade to ensure the accuracy of the cutting straight line.
[0037] Pressing down the positioning plate 5 and sliding the cutting blade along the guide groove 6 of the positioning plate 5 to make a cutting slit on the glass surface, the spring 8 has a small pressure to continuously press the positioning plate 5, and then pushes the positioning plate 5 to align the insertion hole 7 with the axis of the stud 14, and rotates the stud 14 so that its tip is inserted into the insertion hole 7 and contacts the glass cutting slit to form a pressure transmission point.
[0038] Release the pressure plate 12 and slide the sliding block 11 backward to release the glass edge clamping, avoiding additional stress during separation. Press the movable handle 17 to drive the rotating plate 16 to rotate, and transmit the torque to the pressure block 13 through the crossbar 15. The pressure block 13 applies downward pressure under the leverage, pushing the stud 14 to apply force precisely along the cutting seam. The pressure at one end of the stud extends linearly along the cutting seam, realizing uniform breakage of the glass along the predetermined path, avoiding the risk of breakage caused by manual breaking.
[0039] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A glass cutting auxiliary device, characterized in that: Includes a base (1), the base (1) is fixedly connected to a fixed handle (2) by bolts, the fixed handle (2) has a groove (3) inside, a sliding plate (4) is slidably connected inside the groove (3), a positioning plate (5) is slidably connected inside the sliding plate (4), a guide groove (6) is opened inside the positioning plate (5), and an insertion hole (7) is opened at one end of the positioning plate (5), and a spring (8) is provided between the positioning plate (5) and the groove (3).
2. The glass cutting auxiliary device according to claim 1, characterized in that: The base (1) is fixedly connected to a base plate (9) at its bottom, and a pad (10) is fixedly connected to the front side of the base plate (9).
3. The glass cutting auxiliary device according to claim 2, characterized in that: The bottom plate (9) is slidably connected to two ends of a sliding block (11), and the sliding block (11) is rotatably connected to a pressure plate (12) via a torque shaft.
4. The glass cutting auxiliary device according to claim 1, characterized in that: A pressure block (13) is slidably connected to the top front side of the base (1), and a stud (14) is threaded onto the pressure block (13).
5. The glass cutting auxiliary device according to claim 4, characterized in that: A crossbar (15) is fixedly connected to the rear side of the pressure block (13), and a rotating plate (16) is movably connected to the crossbar (15). The rotating plate (16) and the base (1) are rotatably connected.
6. The glass cutting auxiliary device according to claim 5, characterized in that: The other end of the rotating plate (16) is movably connected to a movable handle (17), which is rotatably connected to the base (1).
7. The glass cutting auxiliary device according to claim 3, characterized in that: The sliding block (11) and pressure plate (12) are provided in two sets, and the two sets of sliding blocks (11) and pressure plates (12) are arranged symmetrically.