A trephine

Abstract

A kind of annular saw, including shell and circular saw blade being arranged at the end of shell, the driving mechanism being arranged in the shell and capable of driving circular saw blade rotation, the handle being arranged close to the circular saw blade of the shell, the handle includes the mounting portion in the middle and the first handle and the second handle at the two sides of mounting portion, the first handle and the second handle are located at the upper and lower sides of shell respectively, the mounting portion of the handle is fixed on shell and circular saw blade is located at the outside of shell and handle in its axial direction.The handle and the handle structure of the utility model annular saw are innovatively designed, can realize annular saw 180 ° rotation and hold as comfortable as before;It meets the ergonomic innovative design structure, right-handed and left-handed people can use normally, and meet the different working condition requirements that can be pasted to left side wall and also can be pasted to right side wall to groove front wall, adapt to left-handed, right-handed and wiring direction simultaneously, different working conditions are convenient to switch and use.

Description

Technical Field

[0001] The utility model relates to a ring saw. Background Art

[0002] Due to the limitations of the position structure of the main body and the saw blade of the traditional ring saw, when working, considering the operator's position (the existing ring saw mainly considers right-handed people, but in fact, some operators are left-handed), the machine position (the saw blade is on the left or right side of the main body), and the wall position (on the left or right side of the person), only one side is more comfortable for grooving, and it is more difficult to groove on the other side. The existing ring saws in the market are difficult to meet the requirements, resulting in inconvenient use and operation. Moreover, the circular saw blade of the existing ring saw is located inside the handle and the shell in its axial direction, resulting in that the circular saw blade cannot groove the front wall against the side wall. Summary of the Invention

[0003] The utility model provides a ring saw.

[0004] The technical solution adopted by the utility model to solve the above technical problems is as follows:

[0005] A ring saw includes a shell and a circular saw blade arranged at the end of the shell. A driving mechanism capable of driving the circular saw blade to rotate is arranged inside the shell. A handle is arranged near the circular saw blade. The handle includes a middle mounting part, a first handle and a second handle located on both sides of the mounting part. The first handle and the second handle are respectively located on the upper and lower sides of the shell. The mounting part of the handle is fixed on the shell, and the circular saw blade is located outside the shell and the handle in its axial direction.

[0006] Preferably, the first handle and the second handle are symmetrically arranged relative to the mounting part.

[0007] Preferably, the handle has a "mu" character structure. The mounting part is a first square frame, the first handle is a second square frame, and the second handle is a third square frame.

[0008] Preferably, a handle is rotatably arranged at the other end of the shell opposite to the circular saw blade.

[0009] Preferably, the handle has a "D" character structure.

[0010] Preferably, the handle includes a connecting part and a holding handle. The holding handle has an arc structure, and both ends of the holding handle respectively extend to the end and the side wall of the connecting part. The connecting part of the handle is rotatably connected to the end of the shell.

[0011] Preferably, first protrusions are oppositely arranged on the inner side of the connecting part. A clamping groove cooperating with the protrusions is arranged on the outer side of the tail end of the shell. A circular protrusion is arranged outside the clamping groove. A notch for the first protrusions to pass through is arranged on the circular protrusion.

[0012] Preferably, the driving mechanism is a motor.

[0013] Preferably, the shell is a cylindrical structure.

[0014] Preferably, the drive mechanism is capable of driving the circular saw blade to rotate forward and backward.

[0015] Compared with existing technologies, the innovative design of the handle and grip structure of this utility model ring saw allows for comfortable holding even after the ring saw rotates 180°; the innovative ergonomic design allows both right-handed and left-handed users to use it normally, and meets the different working conditions of grooving the front wall while keeping it close to the left or right wall. It is also adaptable to left-handed, right-handed users and wiring directions, and can be easily switched between different working conditions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the use of the ring saw by a person standing on the right side.

[0017] Figure 2 This is a schematic diagram of the use of the ring saw by a person standing on the left side.

[0018] Figure 3 This is a schematic diagram of the structure of the ring saw handle of this utility model.

[0019] Figure 4 This is an exploded view of the ring saw of this utility model. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1 to 4 As shown, the ring saw includes a housing 1 and a circular saw blade 2 disposed at one end of the housing 1. A handle 3 is disposed at the other end of the housing 1 opposite to the circular saw blade 2. A drive mechanism capable of driving the circular saw blade 2 to rotate is disposed inside the housing 1. The drive mechanism is a motor. A rocker switch 11 is disposed on the outside of the housing 1. The housing 1 has a cylindrical structure. The rocker switch 11 controls the drive mechanism to drive the circular saw blade 2 to rotate forward and backward. A gyroscope is also disposed inside the housing 1. The built-in gyroscope ensures that the circular saw blade 2 rotates forward when the ring saw is used in the forward direction and rotates backward when the ring saw is used in the reverse direction. The gyroscope automatically cooperates with the rocker switch 11 to identify and control the start and stop of the drive mechanism, eliminating safety hazards.

[0022] A handle 4 is provided near the circular saw blade 2 of the housing 1. The handle 4 includes a mounting portion 41 in the middle and a first handle 42 and a second handle 43 on both sides of the mounting portion 41. The mounting portion 41 of the handle 4 is fixed on the housing 1 and the circular saw blade 2 is located outside the housing 1 and the handle 4 in its axial direction, so as to facilitate the circular saw blade 2 to cut a groove along the wall, avoiding interference between the housing 1 and the handle 4 and the wall. The first handle 42 and the second handle 43 are respectively located on the upper and lower sides of the housing 1.

[0023] In this embodiment, the handle 4 is of a "mesh" structure. The mounting portion 41 is a first square frame, the first handle 42 is a second square frame, and the second handle 43 is a third square frame. The first handle 42 and the second handle 43 are symmetrically arranged relative to the mounting portion 41.

[0024] The handle 3 includes a connecting portion 31 and a gripping handle 32. The handle 3 is of a "D" - shaped structure. The gripping handle 32 is of an arc - shaped structure and both ends of the gripping handle 32 respectively extend to the end and the side wall of the connecting portion 31. The connecting portion 31 of the handle 3 is rotatably connected to the end of the housing 1. Oppositely arranged first protrusions 311 are provided on the inner side of the connecting portion 31. A clamping groove 12 cooperating with the protrusions 311 is provided on the outer side of the tail end of the housing 1. A circular protrusion 13 is provided outside the clamping groove 12, and a notch 131 for the first protrusions 311 to pass through is provided on the circular protrusion 13.

[0025] When the handle 3 is connected to the housing 1, first align the first protrusions 311 on the inner side of the handle 3 with the notch 131 of the circular protrusion 13 on the housing 1, so that the first protrusions 311 of the handle 3 cooperate with the clamping groove 12, thereby enabling the rotational connection between the handle 3 and the housing 1 and preventing the handle 3 from falling off the housing 1.

[0026] An automatic rotation mechanism and a rotation button can also be provided on the handle 3. By pressing the rotation button, the automatic rotation mechanism is controlled to achieve the automatic 180° rotation of the handle 3 at the tail end of the housing 1.

[0027] Since the handle 4 of the ring saw includes a first handle 42 and a second handle 43, left - handed and right - handed people can flip the ring saw according to their own usage habits so that the first handle 42 or the second handle 43 is located above, thereby selectively gripping the first handle 42 and the second handle 43, and rotating the handle 3. One hand grips the first handle 42 or the second handle 43, and the other hand grips the handle 3 to use the ring saw.

[0028] As Figure 1 shown, if it is a right - handed person, the person stands on the right side of the ring saw and grips the ring saw. At this time, the right hand of the person grips the first handle 42 and the left hand grips the handle 3, so that the circular saw blade 2 can cut a groove in the front wall for construction. At the same time, the circular saw blade 2 can also cut a groove in the front wall along the left - hand side wall.

[0029] like Figure 2 As shown, if the person is left-handed, they stand on the left side of the ring saw and hold it. At this time, the person's left hand holds the second handle 43 and the right hand holds the handle 3, so that the circular saw blade 2 can groove the wall in front. At the same time, the circular saw blade 2 can also groove the wall in front while sticking to the right side of the wall.

[0030] The innovative design of the handle 3 and grip 4 of this utility model ring saw allows for comfortable gripping even after the ring saw rotates 180°; its ergonomic design allows both right-handed and left-handed users to use it normally, and meets the different working conditions of grooving the front wall while keeping it close to the left or right wall. It is also adaptable to left-handed and right-handed users and different wiring directions, making it easy to switch between different working conditions.

[0031] Finally, it should be noted that the above embodiments only illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A ring saw, comprising a housing (1) and a circular saw blade (2) disposed at one end of the housing (1), wherein a drive mechanism capable of driving the circular saw blade (2) to rotate is disposed within the housing (1), and a handle (4) is disposed on the housing (1) near the circular saw blade (2), characterized in that, The handle (4) includes a middle mounting portion (41), a first handle (42) and a second handle (43) on both sides of the mounting portion (41). The first handle (42) and the second handle (43) are respectively located on the upper and lower sides of the housing (1). The mounting portion (41) of the handle (4) is fixed on the housing (1), and the circular saw blade (2) is located outside the housing (1) and the handle (4) in its axial direction.

2. The ring saw according to claim 1, characterized in that, The first handle (42) and the second handle (43) are symmetrically arranged relative to the mounting portion (41).

3. The ring saw according to claim 2, characterized in that, The handle (4) has a "mesh" - shaped structure. The mounting portion (41) is a first square frame, the first handle (42) is a second square frame, and the second handle (43) is a third square frame.

4. The ring saw according to claim 1, characterized in that, A handle (3) is rotatably provided at the other end of the housing (1) opposite to the circular saw blade (2).

5. The ring saw according to claim 4, characterized in that, The handle (3) has a "D" - shaped structure.

6. The ring saw according to claim 5, characterized in that, The handle (3) includes a connecting portion (31) and a gripping handle (32). The gripping handle (32) has an arc - shaped structure, and both ends of the gripping handle (32) respectively extend to the end and the side wall of the connecting portion (31). The connecting portion (31) of the handle (3) is rotatably connected to the end of the housing (1).

7. The ring saw according to claim 6, characterized in that, First protrusions (311) are oppositely arranged on the inner side of the connecting portion (31). A clamping groove (12) cooperating with the protrusions (311) is provided on the outer side of the tail end of the housing (1). A circular protrusion (13) is provided outside the clamping groove (12), and a notch (131) for the first protrusions (311) to pass through is provided on the circular protrusion (13).

8. The ring saw according to claim 1, characterized in that, The driving mechanism is a motor.

9. The ring saw according to claim 1, characterized in that, The housing (1) has a cylindrical structure.

10. The ring saw according to claim 1, characterized in that, The driving mechanism can drive the circular saw blade (2) to rotate forward and backward.

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