Cutting device

Abstract

The present invention discloses a cutting device, comprising: a first handle; a second handle, the left end of which is hinged to the left end of the first handle so that the first and second handles can open and close relative to each other; an annular cutter, which is detachably mounted on the first handle, with the blade of the annular cutter facing the second handle; and a base, which is mounted on the second handle corresponding to the annular cutter and can cooperate with the annular cutter to cut sheet material. When used in a seal application, circular blind plates of the desired size can be accurately cut by simply replacing the annular cutter with the desired size, thereby improving seal efficiency and reducing seal costs.

Description

Technical Field

[0001] The invention relates to the technical field of gas meter sealing, and in particular to a cutting device. Background Art

[0002] In the prior art, for users who stop using gas, it is necessary to implement meter sealing. Specifically, a circular blind plate made of rubber is needed to seal the meter cable position in front of the gas meter. Since the sizes of different gas meters and the corresponding pipe diameters are different, the staff usually brings a larger rectangular blind plate to the meter sealing site and cuts the circular blind plate of the required size with scissors according to the size of the on-site gas meter and the corresponding pipe diameter. However, the dimensional accuracy of the circular blind plate cut by the staff on-site with scissors is low. Usually, the cut circular blind plate is too large, too small or not round, which makes the cut circular blind plate unable to be sealed or poorly sealed. As a result, the staff needs to repeatedly cut at the meter sealing site until a circular blind plate of qualified size is obtained, which is time-consuming and labor-intensive, reduces the meter sealing efficiency, and causes waste of blind plate materials and increases the meter sealing cost. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a cutting device that enables workers to accurately cut circular blind plates of the required size on the sealing site, thereby improving sealing efficiency and reducing sealing costs.

[0004] According to an embodiment of the present invention, the cutting device includes: a first handle; a second handle, the left end of the second handle is hinged to the left end of the first handle so that the first handle and the second handle can open and close relative to each other; an annular cutter, the annular cutter is detachably provided on the first handle, and the blade of the annular cutter faces the second handle; a base, the base is provided on the second handle corresponding to the annular cutter, and the base can cooperate with the annular cutter to cut sheets.

[0005] The cutting device according to the embodiment of the present invention has at least the following beneficial effects: when used on the sealing site, it is only necessary to replace the annular cutter of the required size to accurately cut out the circular blind plate of the required size, which is beneficial to improving the sealing efficiency and reducing the sealing cost.

[0006] According to some embodiments of the present invention, the base is detachably disposed on the second handle, and a top of the base is provided with an avoidance groove for the annular cutter to be inserted.

[0007] According to some embodiments of the present invention, the avoidance groove passes through the base vertically, so that the base has a cylindrical structure that passes through the base vertically.

[0008] According to some embodiments of the present invention, the first handle includes a first connecting portion and a first gripping portion, the left end of the first connecting portion is hinged to the left end of the second handle, a first threaded connecting portion is provided on one side of the annular cutter corresponding to the first connecting portion, a first threaded connecting portion is provided on the right end of the first connecting portion corresponding to the first threaded connecting portion, and the first threaded connecting portion is threadedly connected to the first threaded connecting hole, a second threaded connecting portion is provided on the other side of the annular cutter corresponding to the first gripping portion, a second threaded connecting portion is provided on the left end of the first gripping portion corresponding to the second threaded connecting portion, and the second threaded connecting portion is threadedly connected to the second threaded connecting hole.

[0009] According to some embodiments of the present invention, the annular cutter housing is provided with a cutter protective shell capable of abutting against the top of the base, the cutter protective shell is a cylindrical structure with an open bottom, and avoidance through holes are provided on the side walls of the cutter protective shell corresponding to the first threaded connection portion and the second threaded connection portion, and an elastic reset member is provided between the cutter protective shell and the annular cutter so that the annular cutter is completely received in the cutter protective shell when the cutter protective shell is not subjected to external force, and the cutter protective shell can move relative to the annular cutter and cause the annular cutter to extend out of the cutter protective shell when subjected to external force.

[0010] According to some embodiments of the present invention, the elastic return member is a first compression spring, and a transversely extending first limiting portion is provided at the top of the annular cutter corresponding to the top of the first compression spring, and a transversely extending second limiting portion is provided in the cutter protective shell corresponding to the bottom of the first compression spring, the top of the first compression spring abuts against or is connected to the first limiting portion, and the bottom of the first compression spring abuts against or is connected to the second limiting portion.

[0011] According to some embodiments of the present invention, the second handle includes a second connecting portion and a second gripping portion, the left end of the second connecting portion is hinged to the left end of the first handle, a third threaded connecting portion is provided on one side of the base corresponding to the second connecting portion, a third threaded connecting portion is provided on the right end of the second connecting portion corresponding to the third threaded connecting portion, and the third threaded connecting portion is threadedly connected to the third threaded connecting hole, a fourth threaded connecting portion is provided on the other side of the base corresponding to the second gripping portion, a fourth threaded connecting portion is provided on the left end of the second gripping portion corresponding to the fourth threaded connecting portion, and the fourth threaded connecting portion is threadedly connected to the fourth threaded connecting hole.

[0012] According to some embodiments of the present invention, the cutting device further includes a second compression spring, and the second compression spring is detachably disposed between the first handle and the second handle.

[0013] According to some embodiments of the present invention, both the first handle and the second handle are provided with a limiting groove for embedding the end portion of the second compression spring.

[0014] According to some embodiments of the present invention, the right side of the first handle and the right side of the second handle are both flat.

[0015] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0017] Figure 1 2 is a schematic structural diagram of the cutting device according to an embodiment of the present invention when the first handle and the second handle are closed;

[0018] Figure 2 is a cross-sectional schematic diagram of the cutting device according to an embodiment of the present invention when the first handle and the second handle are closed;

[0019] Figure 3 yes Figure 2 A partial enlarged schematic diagram in the middle;

[0020] Figure 4 2 is a schematic structural diagram of a cutting device according to an embodiment of the present invention when the first handle and the second handle are opened;

[0021] Figure 5 yes Figure 4 A structural schematic diagram of the structure shown from another perspective.

[0022] Reference numerals:

[0023] First handle 100, first connecting part 110, first gripping part 120, second handle 200, second connecting part 210, second gripping part 220, annular cutter 300, first threaded connecting part 310, second threaded connecting part 320, first limiting part 330, base 400, avoidance groove 410, third threaded connecting part 420, fourth threaded connecting part 430, cutter protective shell 500, avoidance through hole 510, second limiting part 520, first compression spring 600, second compression spring 700, limiting groove 800. DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that if orientation descriptions are involved, the orientations or positional relationships indicated, such as up, down, front, back, left, and right, are based on the orientations or positional relationships shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0026] In the description of the present invention, if the words such as several, greater than, less than, exceed, above, below, within, etc. appear, among which, several means one or more, and more means more than two, greater than, less than, exceed, etc. are understood as not including the number itself, and above, below, within, etc. are understood as including the number itself.

[0027] In the description of the present invention, if words such as first and second appear, they are only used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] Reference Figures 1 to 5 The cutting device according to an embodiment of the present invention includes a first handle 100 , a second handle 200 , a circular cutter 300 and a base 400 .

[0030] The left end of the second handle 200 is hinged to the left end of the first handle 100 so that the first handle 100 and the second handle 200 can be opened and closed relative to each other. Specifically, the first handle 100 and the second handle 200 are hinged by rivets. Of course, the first handle 100 and the second handle 200 can also be hinged by hinges or other structures, which are not limited here. The annular cutter 300 is detachably provided on the first handle 100, and the blade of the annular cutter 300 faces the second handle 200. The base 400 is provided on the second handle 200 corresponding to the annular cutter 300, and the base 400 can cooperate with the annular cutter 300 to cut the sheet.

[0031] When used on the sealing site, it is only necessary to replace the annular cutter 300 of the required size to accurately cut out the circular blind plate of the required size, which is beneficial to improving the sealing efficiency and reducing the sealing cost. Specifically, after replacing the annular cutter 300 of the required size, place the carried rectangular blind plate between the annular cutter 300 and the base 400, and then apply force to the first handle 100 and the second handle 200 to make the annular cutter 300 and the base 400 cooperate with each other and cut the rectangular blind plate.

[0032] Reference Figure 2 and Figure 4 In some embodiments, the base 400 is detachably disposed on the second handle 200, and a relief groove 410 is provided on the top of the base 400 for the annular cutter 300 to be inserted into, so that the blade of the annular cutter 300 can pass through the rectangular blind plate when cutting the rectangular blind plate, so as to facilitate the separation of the cut circular blind plate from the rectangular blind plate.

[0033] Reference Figure 2 、 Figure 4 and Figure 5 In some embodiments, the avoidance groove 410 passes through the base 400 vertically, so that the base 400 has a cylindrical structure that passes through from top to bottom, so as to facilitate the removal of the circular blind plate that falls into the avoidance groove 410.

[0034] Reference Figure 1 and Figure 2 In some embodiments, the first handle 100 includes a first connecting portion 110 and a first gripping portion 120, the left end of the first connecting portion 110 is hinged to the left end of the second handle 200, and a first threaded connecting portion 310 is provided on one side of the annular cutter 300 corresponding to the first connecting portion 110, and a first threaded connecting hole (not shown in the figure) is provided on the right end of the first connecting portion 110 corresponding to the first threaded connecting portion 310, and the first threaded connecting portion 310 is threadedly connected to the first threaded connecting hole, and a second threaded connecting portion 320 is provided on the other side of the annular cutter 300 corresponding to the first gripping portion 120, and a second threaded connecting hole (not shown in the figure) is provided on the left end of the first gripping portion 120 corresponding to the second threaded connecting portion 320, and the second threaded connecting portion 320 is threadedly connected to the second threaded connecting hole. The structure is simple and it is easy to replace annular cutters 300 of different sizes.

[0035] It should be noted that, in some other embodiments, the first connecting portion and the annular cutter, as well as the first gripping portion and the annular cutter, may also be detachably connected via a snap-fit ​​structure, which is not limited here.

[0036] Reference Figures 1 to 5In some embodiments, the annular cutter 300 is covered with a cutter protective shell 500 capable of abutting against the top of the base 400. The cutter protective shell 500 is a cylindrical structure with an open bottom. The side walls of the cutter protective shell 500 are provided with avoidance through holes 510 corresponding to the first threaded connection portion 310 and the second threaded connection portion 320. An elastic reset member is provided between the cutter protective shell 500 and the annular cutter 300 so that the annular cutter 300 is completely stored in the cutter protective shell 500 when the cutter protective shell 500 is not subjected to external force, and the cutter protective shell 500 can move relative to the annular cutter 300 when subjected to external force, so that the annular cutter 300 is extended from the cutter protective shell 500. During use, when the staff applies force to the first handle 100 and the second handle 200 to make the cutter protection shell 500 abut against the top of the base 400 through the rectangular blind plate, the cutter protection shell 500 will be restricted by the base 400. At this time, continuing to apply force to the first handle 100 and the second handle 200 can overcome the elastic force of the elastic reset member and drive the cutter protection shell 500 and the annular cutter 300 to move relative to each other, so that the annular cutter 300 extends from the cutter protection shell 500 and is inserted into the avoidance groove 410, thereby When cutting the rectangular blind plate, when the cutter protective shell 500 is away from the top of the base 400, the cutter protective shell 500 will lose the restriction of the base 400, so that the elastic reset member can drive the cutter protective shell 500 and the annular cutter 300 to move relative to each other, thereby allowing the annular cutter 300 to be re-stored in the cutter protective shell 500. The above structure can protect the staff and is conducive to preventing the staff from being accidentally injured by the annular cutter 300 during work. At the same time, it makes the above cutting device less likely to hurt people when it is not in use.

[0037] Reference Figure 2 and Figure 3 In some embodiments, the elastic return member is a first compression spring 600, and a transversely extending first limiting portion 330 is provided at the top of the annular cutter 300 corresponding to the top of the first compression spring 600, and a transversely extending second limiting portion 520 is provided in the cutter protective shell 500 corresponding to the bottom of the first compression spring 600. The top of the first compression spring 600 abuts or is connected to the first limiting portion 330, and the bottom of the first compression spring 600 abuts or is connected to the second limiting portion 520. The structure is simple and easy to implement.

[0038] It should be noted that, in some other embodiments, the first compression spring may also be arranged between the first threaded connection part and the bottom wall of the corresponding avoidance through hole and between the second threaded connection part and the bottom wall of the corresponding avoidance through hole, which is not limited here.

[0039] It should be noted that in some other embodiments, the elastic return member can also be a tension spring, which is specifically arranged between the first threaded connection part and the top wall of the corresponding avoidance hole and between the second threaded connection part and the top wall of the corresponding avoidance hole, which is not limited here.

[0040] Reference Figure 1 and Figure 2 In some embodiments, the second handle 200 includes a second connecting portion 210 and a second gripping portion 220, the left end of the second connecting portion 210 is hinged to the left end of the first handle 100, and a third threaded connecting portion 420 is provided on one side of the base 400 corresponding to the second connecting portion 210, and a third threaded connecting hole (not shown in the figure) is provided on the right end of the second connecting portion 210 corresponding to the third threaded connecting portion 420, and the third threaded connecting portion 420 is threadedly connected to the third threaded connecting hole, and a fourth threaded connecting portion 430 is provided on the other side of the base 400 corresponding to the second gripping portion 220, and a fourth threaded connecting hole (not shown in the figure) is provided on the left end of the second gripping portion 220 corresponding to the fourth threaded connecting portion 430, and the fourth threaded connecting portion 430 is threadedly connected to the fourth threaded connecting hole. The structure is simple and it is easy to replace the base 400 that is compatible with annular cutters 300 of different sizes.

[0041] It should be noted that, in some other embodiments, the second connecting portion and the base, as well as the second gripping portion and the base, may also be detachably connected via a snap-fit ​​structure, which is not limited here.

[0042] Reference Figures 1 to 5 In some embodiments, the cutting device further includes a second compression spring 700, which is detachably disposed between the first handle 100 and the second handle 200. When the required circular blind plate is cut and the external force applied to the first handle 100 and the second handle 200 is removed, the second compression spring 700 can automatically drive the annular cutter 300 to separate from the base 400 without the need for manual separation by staff.

[0043] Reference Figure 3 In some embodiments, both the first handle 100 and the second handle 200 are provided with a retaining groove 800 for receiving the end of the second compression spring 700. One end of the second compression spring 700 is retained within the retaining groove 800 on the first handle 100, while the other end of the second compression spring 700 is retained within the retaining groove 800 on the second handle 200. This structure is simple and easy to disassemble and assemble, facilitating replacement of annular cutters 300 of different sizes and bases 400 corresponding to annular cutters 300 of different sizes. Specifically, the second compression spring 700 is disposed between the first grip portion 120 and the second grip portion 220. Alternatively, the second compression spring 700 may be disposed between the first connecting portion and the second connecting portion, without limitation herein.

[0044] It should be noted that, in some other embodiments, the limiting groove may also be replaced by a limiting column for sleeve-mounting the end of the second compression spring, which is not limited here.

[0045] Reference Figure 1 、 Figure 2 、 Figure 4 and Figure 5 In some embodiments, the right side of the first handle 100 and the right side of the second handle 200 are both flat, that is, the right side of the first grip portion 120 and the right side of the second grip portion 220 are both flat, which is conducive to improving comfort during operation.

[0046] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," and "some examples" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. Throughout this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A cutting device, characterized in that: include: First Handle (100); a second handle (200), the left end of the second handle (200) being hinged to the left end of the first handle (100), so that the first handle (100) and the second handle (200) can be opened and closed relative to each other; an annular cutter (300), the annular cutter (300) being detachably disposed on the first handle (100), with the blade of the annular cutter (300) facing the second handle (200); a base (400), the base (400) being arranged on the second handle (200) corresponding to the annular cutter (300), and the base (400) being capable of cooperating with the annular cutter (300) to cut sheet materials; The base (400) is detachably arranged on the second handle (200), and a top of the base (400) is provided with an avoidance groove (410) capable of inserting the annular cutter (300); The outer shell of the annular cutter (300) is provided with a cutter protection shell (500) capable of abutting against the top of the base (400), and the cutter protection shell (500) is a cylindrical structure with an open bottom. An elastic reset member is provided between the cutter protection shell (500) and the annular cutter (300), so that the annular cutter (300) is completely stored in the cutter protection shell (500) when the cutter protection shell (500) is not subjected to external force, and the cutter protection shell (500) can move relative to the annular cutter (300) and make the annular cutter (300) extend out of the cutter protection shell (500) when subjected to external force.

2. The cutting device according to claim 1, wherein The avoidance groove (410) passes through the base (400) vertically, so that the base (400) has a cylindrical structure that passes through vertically.

3. The cutting device according to claim 1, wherein The first handle (100) comprises a first connecting portion (110) and a first gripping portion (120), the left end of the first connecting portion (110) being hinged to the left end of the second handle (200), a first threaded connecting portion (310) being provided on one side of the annular cutter (300) corresponding to the first connecting portion (110), a first threaded connecting hole being provided on the right end of the first connecting portion (110) corresponding to the first threaded connecting portion (310), and the first threaded connecting portion (310) being threadedly connected to the first threaded connecting hole, and a second threaded connecting portion (320) being provided on the other side of the annular cutter (300) corresponding to the first gripping portion (120), a second threaded connecting hole being provided on the left end of the first gripping portion (120) corresponding to the second threaded connecting portion (320), and the second threaded connecting portion (320) being threadedly connected to the second threaded connecting hole.

4. The cutting device according to claim 3, wherein: Avoidance through holes (510) are provided on the side wall of the cutter protection shell (500) corresponding to the first threaded connection part (310) and the second threaded connection part (320).

5. The cutting device according to claim 4, characterized in that The elastic return member is a first compression spring (600), and a first limiting portion (330) extending laterally is provided at the top of the annular cutter (300) corresponding to the top of the first compression spring (600), and a second limiting portion (520) extending laterally is provided in the cutter protective shell (500) corresponding to the bottom of the first compression spring (600), the top of the first compression spring (600) abuts against or is connected to the first limiting portion (330), and the bottom of the first compression spring (600) abuts against or is connected to the second limiting portion (520).

6. The cutting device according to claim 1, wherein: The second handle (200) includes a second connecting portion (210) and a second gripping portion (220), the left end of the second connecting portion (210) is hinged to the left end of the first handle (100), a third threaded connecting portion (420) is provided on one side of the base (400) corresponding to the second connecting portion (210), a third threaded connecting hole is provided on the right end of the second connecting portion (210) corresponding to the third threaded connecting portion (420), and the third threaded connecting portion (420) is threadedly connected to the third threaded connecting hole, and a fourth threaded connecting portion (430) is provided on the other side of the base (400) corresponding to the second gripping portion (220), a fourth threaded connecting hole is provided on the left end of the second gripping portion (220) corresponding to the fourth threaded connecting portion (430), and the fourth threaded connecting portion (430) is threadedly connected to the fourth threaded connecting hole.

7. The cutting device according to claim 1, wherein: It also includes a second compression spring (700), which is detachably arranged between the first handle (100) and the second handle (200).

8. The cutting device according to claim 7, wherein: The first handle (100) and the second handle (200) are both provided with a limiting groove (800) for embedding the end of the second compression spring (700).

9. The cutting device according to claim 1, wherein: The right side of the first handle (100) and the right side of the second handle (200) are both flat.

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