Cutting machine for building material processing

Abstract

The utility model relates to the technical field of cutting machines, and discloses a cutting machine for building material processing, which comprises a machine body and a blade rotatably mounted at the top of the machine body, and further comprises a protection mechanism, the protection mechanism is used for protecting the blade, the protection mechanism comprises an inner protection plate and an outer protection plate, the inner protection plate is fixedly connected with the machine body, and the outer protection plate is fixedly connected with the machine body. The inner protective plate and the outer protective plate are both provided with semi-annular structures, the inner protective plate and the outer protective plate are both coaxial with the blade, the inner protective plate and the outer protective plate are both in a concave shape along the radial section, and the outer protective plate is arranged on the surface of the inner protective plate in a sleeving mode and rotates along the outer surface of the inner protective plate. The inner protective plate and the outer protective plate are matched for use, when the outer protective plate is completely moved to the surface of the inner protective plate, the blade is partially opened, and the normal cutting function of the blade is guaranteed; when the outer protection plate is moved to be opposite to the inner protection plate, the inner protection plate and the outer protection plate can cover the cutting edge of the blade, the blade is prevented from being damaged due to collision, and the service life of the blade is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of cutting machines, and in particular to a cutting machine for processing building materials. Background Art

[0002] In the process of processing building materials, handheld cutting machines are often used to cut stones, tiles, wood and other materials. They have a simple structure and are easy to carry. However, the blades of existing handheld cutting machines are usually exposed, which is dangerous when carrying. In addition, the cutting blades are easily damaged by collisions, which affects their service life. Therefore, a cutting machine for processing building materials is proposed. Utility Model Content

[0003] In order to solve the problem that the blades of existing handheld cutting machines are usually exposed, which is dangerous when carrying, and the cutting blades are easily damaged by bumps, which affects their service life, the present application provides a cutting machine for processing building materials.

[0004] The present application provides a cutting machine for building material processing that adopts the following technical solution:

[0005] A cutting machine for processing building materials includes a machine body and a blade rotatably mounted on the top of the machine body, and also includes a protective mechanism, wherein the protective mechanism is used to protect the blade, the protective mechanism includes an inner guard plate and an outer guard plate, the inner guard plate is fixedly connected to the machine body, and the inner guard plate and the outer guard plate are both provided with a semi-annular structure, and the inner guard plate and the outer guard plate are both coaxially arranged with the blade, the inner guard plate and the outer guard plate are both "concave" in shape along the radial cross-section, the outer guard plate is sleeved on the surface of the inner guard plate and rotates along the outer surface of the inner guard plate, the inner guard plate and the outer guard plate covers are installed at the cutting edge of the blade, and a fixing mechanism is provided between the inner guard plate and the outer guard plate, and the fixing mechanism can keep the inner guard plate in an open state.

[0006] Preferably, the fixing mechanism includes a limiting rod inserted on one side of the outer guard plate, a positioning spring is sleeved on the surface of the limiting rod, a limiting hole adapted to the limiting rod is opened on one side of the inner guard plate, the limiting rod can be moved in or out of the limiting hole, one end of the positioning spring is fixedly connected to the end of the limiting rod, and the other end of the positioning spring is fixedly connected to the outer guard plate.

[0007] Preferably, the surface of the inner guard plate is provided with an annular mounting plate, and the mounting plate is fixedly sleeved on the surface of the machine body.

[0008] Preferably, both sides of the outer surface of the inner guard plate are provided with sliding grooves, and both sides of the inner surface of the outer guard plate are fixedly connected with sliders, the sliding grooves and sliders are both arranged in a semi-circular shape, and the sliding grooves and sliders are both arranged coaxially with the blade, and the sliders are installed in the sliding grooves and form a moving pair with them.

[0009] Preferably, both sides of the inner guard plate are fixedly connected with fixed plates, and a semi-annular rod is fixedly connected between the two groups of fixed plates. The semi-annular rod is coaxially arranged with the blade, and one side of the outer guard plate is fixedly connected with a guide plate. The surface of the guide plate is provided with a groove body adapted to the semi-annular rod, and the semi-annular rod passes through the groove body. A reset spring is sleeved on the surface of the semi-annular rod. When the outer guard plate is completely moved to the surface of the inner guard plate, the reset spring undergoes elastic deformation.

[0010] In summary, this application has the following beneficial technical effects:

[0011] The utility model provides an inner guard plate for use in conjunction with an outer guard plate. When the outer guard plate is completely moved to the surface of the inner guard plate, the blade is partially opened to ensure the normal cutting function of the blade. When the outer guard plate is moved to be opposite to the inner guard plate, the inner guard plate and the outer guard plate can be covered on the cutting edge of the blade to prevent the blade from being damaged by collision and thus prolonging the service life of the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0013] Figure 2 It is a schematic diagram of the structure of a part of the embodiment of the application;

[0014] Figure 3 It is a schematic structural diagram of an additional guard plate according to an embodiment of the application;

[0015] Figure 4 It is a schematic structural diagram of the guard plate in the embodiment of the application;

[0016] Figure 5 This is an application embodiment Figure 2 Enlarged view of point A in the middle.

[0017] Explanation of the accompanying drawings: 1. Body; 2. Blade; 3. Inner guard plate; 4. Outer guard plate; 5. Guide plate; 6. Semi-circular rod; 7. Return spring; 8. Fixed plate; 9. Slide groove; 10. Limiting hole; 11. Slot body; 12. Slider; 13. Limiting rod; 14. Positioning spring; 15. Mounting plate. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-5 This application is described in further detail.

[0019] An embodiment of the present application discloses a cutting machine for processing building materials, comprising a body 1 and a blade 2 rotatably mounted on the top of the body 1, and also comprising a protective mechanism for protecting the blade 2, the protective mechanism comprising an inner guard plate 3 and an outer guard plate 4, the inner guard plate 3 being fixedly connected to the body 1, and the inner guard plate 3 and the outer guard plate 4 are both provided with a semi-annular structure, and the inner guard plate 3 and the outer guard plate 4 are both coaxially arranged with the blade 2, the inner guard plate 3 and the outer guard plate 4 are both "concave" in shape along the radial cross-section, the outer guard plate 4 is sleeved on the surface of the inner guard plate 3 and rotates along the outer surface of the inner guard plate 3, the inner guard plate 3 and the outer guard plate 4 are covered at the cutting edge of the blade 2, a fixing mechanism is provided between the inner guard plate 3 and the outer guard plate 4, and the fixing mechanism can keep the inner guard plate 3 in an open state.

[0020] In this embodiment, an inner guard plate 3 is provided for use in conjunction with an outer guard plate 4. When the outer guard plate 4 is completely moved to the surface of the inner guard plate 3, the blade 2 is partially opened to ensure the normal cutting function of the blade 2; when the outer guard plate 4 is moved to be opposite to the inner guard plate 3, the inner guard plate 3 and the outer guard plate 4 can be covered on the cutting edge of the blade 2 to prevent the blade 2 from being damaged by collision, thereby increasing the service life of the blade 2.

[0021] Furthermore, the fixing mechanism includes a limiting rod 13 inserted on one side of the outer guard plate 4, a positioning spring 14 is sleeved on the surface of the limiting rod 13, and a limiting hole 10 adapted to the limiting rod 13 is opened on one side of the inner guard plate 3. The limiting rod 13 can be moved into or out of the limiting hole 10, one end of the positioning spring 14 is fixedly connected to the end of the limiting rod 13, and the other end of the positioning spring 14 is fixedly connected to the outer guard plate 4.

[0022] Furthermore, an annular mounting plate 15 is provided on the surface of the inner guard plate 3 , and the mounting plate 15 is fixedly sleeved on the surface of the body 1 .

[0023] Furthermore, slide grooves 9 are provided on both sides of the outer surface of the inner guard plate 3, and sliders 12 are fixedly connected on both sides of the inner surface of the outer guard plate 4. The slide grooves 9 and the sliders 12 are both arranged in a semi-circular shape, and the slide grooves 9 and the sliders 12 are both arranged coaxially with the blade 2. The sliders 12 are installed in the slide grooves 9 and form a moving pair with them.

[0024] Furthermore, fixed plates 8 are fixedly connected on both sides of the inner guard plate 3, and a semi-annular rod 6 is fixedly connected between the two groups of fixed plates 8. The semi-annular rod 6 is coaxially arranged with the blade 2. A guide plate 5 is fixedly connected to one side of the outer guard plate 4. A groove 11 adapted to the semi-annular rod 6 is opened on the surface of the guide plate 5. The semi-annular rod 6 passes through the groove 11. A reset spring 7 is sleeved on the surface of the semi-annular rod 6. When the outer guard plate 4 is completely moved to the surface of the inner guard plate 3, the reset spring 7 undergoes elastic deformation.

[0025] When the cutting is completed, only the limit rod 13 needs to be pulled out from the limiting hole 10, and the return spring 7 that has undergone elastic deformation is reset, thereby driving the outer guard plate 4 to move, so that the outer guard plate 4 moves to a position opposite to the inner guard plate 3, thereby achieving the purpose of protecting the blade 2.

[0026] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0027] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0028] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0029] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A cutting machine for processing building materials, comprising a machine body (1) and a blade (2) rotatably mounted on the top of the machine body (1), characterized in that: The invention also includes a protective mechanism, which is used to protect the blade (2). The protective mechanism includes an inner guard plate (3) and an outer guard plate (4). The inner guard plate (3) is fixedly connected to the machine body (1), and the inner guard plate (3) and the outer guard plate (4) are both provided with a semi-annular structure. The inner guard plate (3) and the outer guard plate (4) are both coaxially arranged with the blade (2). The inner guard plate (3) and the outer guard plate (4) are both "concave" in shape along the radial cross section. The outer guard plate (4) is sleeved on the surface of the inner guard plate (3) and rotates along the outer surface of the inner guard plate (3). The inner guard plate (3) and the outer guard plate (4) are covered at the cutting edge of the blade (2). A fixing mechanism is provided between the inner guard plate (3) and the outer guard plate (4), and the fixing mechanism can keep the inner guard plate (3) in an open state.

2. A cutting machine for processing building materials according to claim 1, characterized in that: The fixing mechanism includes a limiting rod (13) inserted into one side of the outer guard plate (4), a positioning spring (14) is sleeved on the surface of the limiting rod (13), a limiting hole (10) adapted to the limiting rod (13) is opened on one side of the inner guard plate (3), the limiting rod (13) can be moved into or out of the limiting hole (10), one end of the positioning spring (14) is fixedly connected to the end of the limiting rod (13), and the other end of the positioning spring (14) is fixedly connected to the outer guard plate (4).

3. A cutting machine for processing building materials according to claim 2, characterized in that: An annular mounting plate (15) is provided on the surface of the inner guard plate (3), and the mounting plate (15) is fixedly sleeved on the surface of the machine body (1).

4. A cutting machine for processing building materials according to claim 1, characterized in that: Slide grooves (9) are provided on both sides of the outer surface of the inner guard plate (3), and sliders (12) are fixedly connected to both sides of the inner surface of the outer guard plate (4). The slide grooves (9) and the sliders (12) are both arranged in a semi-annular shape, and the slide grooves (9) and the sliders (12) are both arranged coaxially with the blade (2). The sliders (12) are installed in the slide grooves (9) and form a moving pair therewith.

5. A cutting machine for processing building materials according to claim 4, characterized in that: Both sides of the inner guard plate (3) are fixedly connected with fixed plates (8), and a semi-circular rod (6) is fixedly connected between the two groups of fixed plates (8). The semi-circular rod (6) is coaxially arranged with the blade (2). One side of the outer guard plate (4) is fixedly connected with a guide plate (5), and a groove (11) adapted to the semi-circular rod (6) is provided on the surface of the guide plate (5). The semi-circular rod (6) passes through the groove (11). A reset spring (7) is sleeved on the surface of the semi-circular rod (6). When the outer guard plate (4) is completely moved to the surface of the inner guard plate (3), the reset spring (7) undergoes elastic deformation.

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