A cutting device for the non-destructive removal of old windows
Patent Information
- Application Number
- CN202520252699.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-02-18
Smart Images

Figure CN224737985U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of angle grinder technology, and in particular to a cutting device for non-destructive removal of old windows. Background Technology
[0002] Currently, the method for removing old windows in the installation market requires operators to use an angle grinder to cut the connection between the window frame and the wall. Because the angle grinder blade is not large enough, and the protective cover on the grinder interferes with the window frame profile, the cutting depth is insufficient, making it impossible to effectively cut the window frame. Furthermore, to ensure a smooth cut, operators often remove the protective cover and replace it with a larger blade, leaving the angle grinder without a protective cover. If the grinding wheel breaks during use, it poses a danger.
[0003] Therefore, improvements are needed. Utility Model Content
[0004] The technical problem solved by this utility model is to address the deficiencies in the prior art by providing a cutting device for the non-destructive removal of old windows, thereby solving the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A cutting device for non-destructive removal of old windows, comprising: an angle grinder body; a dust cover, the lower part of which is a cavity with an opening on one side, the grinding wheel of the angle grinder body being placed in the cavity, and the upper part of the dust cover having a groove at the opening; a guide assembly, the guide assembly being one or more sets, the guide assembly including a slide rod mounted on the dust cover, an elastic element sleeved on the slide rod, and a mounting block sleeved on the slide rod and the elastic element; the mounting block being connected to the angle grinder body; wherein, the angle grinder body moves along the guide assembly driven by an external force, and the angle grinder body moves in the groove.
[0006] Furthermore, the guide components are in two sets, and the guide components are respectively arranged in parallel on both sides of the slot.
[0007] Furthermore, it includes a guide wheel assembly, which is one or more sets, and the guide wheel assembly is located at the front end of the dust cover. The guide wheel assembly is used to guide the angle grinder body during cutting.
[0008] Furthermore, the guide wheel assembly consists of two sets, which are respectively located on both sides of the front end of the dust cover.
[0009] Furthermore, it includes a telescopic cover for covering the slot, one end of which is connected to the dust cover and the other end of which is connected to the angle grinder body; when the angle grinder body moves, it causes the telescopic cover to expand or contract.
[0010] Furthermore, a dust suction port is provided at the rear of the cavity, which is used to connect to an external dust collection device.
[0011] Furthermore, it includes a handle, which is connected to the angle grinder body.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] Enhanced safety: The designed guide assembly ensures that the angle grinder body moves stably within the dust cover's slot during cutting, effectively preventing safety risks associated with operators removing the dust cover to achieve deeper cuts. Even if the grinding wheel breaks in extreme circumstances, the dust cover and guide assembly provide some protection, reducing the risk of injury to the operator.
[0014] Improved cutting efficiency and precision: The design of the guide assembly allows the angle grinder body to move smoothly along a specific path, which not only enhances the accuracy of the cut but also makes the cutting process more efficient, especially for the non-destructive removal of old windows, effectively avoiding accidental damage to surrounding walls or other parts of the window frame.
[0015] Dust protection and cleaning: The dust cover is designed to protect operators from the dust generated during cutting. It can also be connected to an external dust collection device through a reserved dust suction port to effectively collect the debris generated during cutting, keep the working environment clean, and reduce the amount of subsequent cleaning work.
[0016] Flexibility and applicability: The guide wheel assembly further enhances the flexibility of the device, allowing the angle grinder to adapt more smoothly to the contours of different window frames during the cutting process. The cutting position is precise, the appearance is beautiful, and the applicability and practicality of the device are improved.
[0017] Innovation of the telescopic cover: By introducing a telescopic cover, not only is the integrity of the dust cover maintained when the angle grinder body moves, but the effective enclosure of the cutting area is also ensured, further improving the safety of operation and the cleanliness of the environment. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model.
[0019] Figure 2 yes Figure 1 Another structural diagram from another angle.
[0020] Figure 3 This is a partial structural schematic diagram of the present invention.
[0021] Figure 4 This is a structural diagram of the dust cover, guide assembly, and guide wheel assembly.
[0022] Figure 5 This is a schematic diagram of the dust cover.
[0023] Figure 6 This is a partial structural schematic diagram of the present invention.
[0024] Reference numerals in the attached drawings: 1. Angle grinder body; 2. Dust cover; 3. Opening; 4. Cavity; 5. Groove; 6. Guide assembly; 7. Slide rod; 8. Elastic element; 9. Mounting block; 10. Guide wheel assembly; 11. Telescopic cover; 12. Dust suction port; 13. Handle. Detailed Implementation
[0025] The present invention will now be described in further detail with reference to the accompanying drawings.
[0026] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0027] In view of the technical problems described in the background art, such as Figure 1-6As shown, a cutting device for non-destructive removal of old windows is provided, comprising: an angle grinder body 1; a dust cover 2, the lower part of which is a cavity 4 with an opening 3 on one side, the grinding wheel of the angle grinder body 1 being placed in the cavity 4, and the upper part of the dust cover 2 having a groove 5 at the opening 3; a guide assembly 6, which is one or more sets, the guide assembly 6 including a slide rod 7 mounted on the dust cover 2, an elastic element 8 sleeved on the slide rod 7, and a mounting block 9 sleeved on the slide rod 7 and the elastic element 8; the mounting block 9 being connected to the angle grinder body 1; wherein, the angle grinder body 1 is driven by an external force to move along the guide assembly 6, and the angle grinder body 1 moves in the groove 5.
[0028] Preferably, there are two sets of guide components 6, which are respectively arranged in parallel on both sides of the slot 5.
[0029] Preferably, the device includes a guide wheel assembly 10, which is one or more sets. The guide wheel assembly 10 is located at the front end of the dust cover 2 and is used to guide the angle grinder body 1 during cutting.
[0030] Specifically, the guide wheel set 10 consists of two sets, which are respectively arranged on both sides of the front end of the dust cover 2.
[0031] Preferably, it includes a telescopic cover 11 for covering the slot 5, one end of the telescopic cover 11 is connected to the dust cover, and the other end of the telescopic cover 11 is connected to the angle grinder body 1; when the angle grinder body 1 moves, it drives the telescopic cover 11 to expand or contract.
[0032] Preferably, a dust suction port 12 is provided at the rear of the cavity 4, and the dust suction port 12 is used to connect to an external dust collection device.
[0033] Preferably, it includes a handle 13, which is connected to the angle grinder body 1.
[0034] This embodiment provides a cutting device for non-destructive removal of old windows, the structure of which is shown in the figure, including an angle grinder body 1, a dust cover 2, a guide assembly 6, and other components. This technical solution is based on an improvement of the existing angle grinder body 1, therefore the angle grinder body 1 can be a commercially available angle grinder.
[0035] Angle grinder body 1: As the main power component of the cutting device, the angle grinder body 1 is equipped with a grinding wheel for cutting the window frame.
[0036] Dust cover 2: The lower part of the dust cover 2 is a cavity 4 with an opening 3 on one side. The grinding wheel of the angle grinder body 1 is placed in this cavity 4, which can effectively prevent dust from splashing during the cutting process and prevent personal injury caused by grinding wheel breakage. The upper part of the dust cover 2 has a groove 5 at the opening 3. The groove 5 allows the angle grinder body 1 to move, so that the grinding wheel on the angle grinder body 1 can cut the window frame more deeply.
[0037] Guide assembly 6: Guide assembly 6 includes a slide rod 7 mounted on the dust cover 2, an elastic element 8 sleeved on the slide rod 7, and a mounting block 9 sleeved on the slide rod 7 and the elastic element 8. The mounting block 9 is connected to the angle grinder body 1. The guide assembly 6 allows the angle grinder body 1 to move smoothly along a specific path, enhancing the accuracy and stability of the cut. In this embodiment, there are two sets of guide assemblies 6, arranged parallel to each other on both sides of the slot 5 to provide better guiding effect. In use, the operator pushes the angle grinder body 1 according to the required cutting depth of the window frame. The two sides of the angle grinder body 1 move under the guidance of the guide assembly 6, so that the grinding wheel on the angle grinder body 1 can cut deeper into the window frame. The elastic element 8 can be a spring, which provides resistance, making the operator push the angle grinder body 1 more smoothly.
[0038] In another embodiment, the angle grinder lacks a positioning device, relying on manual control of the cutting direction. This can easily lead to misaligned cuts that damage the original finish, resulting in uneven edges that affect aesthetics. To address this, the guide wheel assembly 10 is positioned at the front end of the dust cover 2. During cutting, the tool slides across the windowsill and wall surface via pulleys on the dust cover 2, ensuring a very smooth cut without damaging the wall. Simultaneously, the guide wheel assembly 10 allows the cutting device to adapt more smoothly to the contours of different window frames, improving cutting flexibility and applicability. In this embodiment, there are two sets of guide wheel assemblies 10, positioned on either side of the front end of the dust cover 2.
[0039] In another embodiment, to handle the dust generated during cutting, a telescopic cover 11 is provided at the slot 5, and a dust suction port 12 is provided at the rear of the cavity 4. The dust suction port 12 is used to connect to external dust collection equipment. During use, the flying debris generated by the angle grinder body 1 during cutting can be prevented from causing injury to the operator by the dust cover. The dust generated by the angle grinder body 1 during cutting is collected by the dust suction port 12, preventing dust from being stirred up, causing environmental pollution, and harming the health of the operator.
[0040] By providing a handle 13 for the operator to hold, it is convenient for the operator to move the angle grinder body 1.
[0041] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.
Claims
1. A cutting device for non-destructive removal of old windows, characterized in that, include: Angle grinder body; The dust cover has a cavity with an opening on one side at its lower part, and the grinding wheel of the angle grinder body is placed in the cavity. The upper part of the dust cover has a groove at the opening position. A guide assembly, comprising one or more sets, the guide assembly including a slide rod mounted on the dust cover, an elastic element sleeved on the slide rod, and a mounting block sleeved on the slide rod and the elastic element; the mounting block is connected to the angle grinder body. The angle grinder body moves along the guide assembly driven by an external force, and the angle grinder body moves in the slot.
2. The cutting device for non-destructive removal of old windows according to claim 1, characterized in that: The guide components are in two sets, and the guide components are respectively arranged in parallel on both sides of the slot.
3. The cutting device for non-destructive removal of old windows according to claim 1, characterized in that: It includes a guide wheel assembly, which is one or more sets. The guide wheel assembly is located at the front end of the dust cover and is used to guide the angle grinder body during cutting.
4. The cutting device for non-destructive removal of old windows according to claim 3, characterized in that: The guide wheel assembly consists of two sets, which are respectively located on both sides of the front end of the dust cover.
5. The cutting device for non-destructive removal of old windows according to claim 3, characterized in that: It includes a telescopic cover for covering the slot, one end of which is connected to the dust cover and the other end of which is connected to the angle grinder body; when the angle grinder body moves, it causes the telescopic cover to expand or retract.
6. The cutting device for non-destructive removal of old windows according to claim 1, characterized in that: The rear of the cavity has a pre-reserved dust suction port, which is used to connect to an external dust collection device.
7. The cutting device for non-destructive removal of old windows according to claim 1, characterized in that: Includes a handle, which is connected to the angle grinder body.