CN112207885A

CN112207885A - Cutting assembly

Info

Publication number: CN112207885A
Application number: CN202010981736.7A
Authority: CN
Inventors: 魏海刚; 山川
Original assignee: State Grid Corp of China SGCC; State Grid Qinghai Electric Power Co Ltd; Information and Telecommunication Branch of State Grid Qinghai Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; State Grid Qinghai Electric Power Co Ltd; Information and Telecommunication Branch of State Grid Qinghai Electric Power Co Ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-01-12

Abstract

The invention provides a cutting assembly, which comprises a mounting block and a cutting tool, wherein the mounting block is provided with a working cavity and a via hole structure communicated with the working cavity; the cutting tool is provided with a cutting end, the cutting end penetrates through the via hole structure and extends into the working cavity to be arranged, the cutting tool is movably arranged along the axial direction of the via hole structure, the cutting tool is provided with a cutting position at which the cutting end extends into the working cavity to cut a to-be-cut object, and the cutting tool is provided with an initial position at which the cutting end exits the working cavity; wherein, the position department that has the via hole structure of installation piece is formed with the scale mark, and the axial extension setting along the via hole structure of scale mark is according to the scale mark with the length that the regulation cutting end stretched into the working chamber. The invention solves the problem that the optical cable cutting device in the prior art cannot accurately cut the optical cable.

Description

Cutting assembly

Technical Field

The invention relates to the technical field of cutting equipment, in particular to a cutting assembly.

Background

The optical cable is used as a medium for bearing most of information communication services, the use frequency of the optical cable of ADSS type is high, the optical cable needs to be cut when the optical cable is maintained, the outer sheath and the inner sheath of the optical cable need to be cut in the process of cutting the optical cable, the thicknesses of the outer sheath and the inner sheath of the optical cable of different types are different, the existing optical cable cutting device cannot effectively control the feeding distance of a cutter, the optical cable device cannot be cut according to the outer sheath and the inner sheath of different thicknesses, the possibility of cutting a fiber core exists, and the safety of the fiber core cannot be guaranteed.

Disclosure of Invention

The invention mainly aims to provide a cutting assembly to solve the problem that an optical cable cutting device in the prior art cannot accurately cut an optical cable.

In order to achieve the above object, the present invention provides a cutting assembly comprising a mounting block and a cutting tool, the mounting block having a working cavity and a via structure communicating with the working cavity; the cutting tool is provided with a cutting end, the cutting end penetrates through the via hole structure and extends into the working cavity to be arranged, the cutting tool is movably arranged along the axial direction of the via hole structure, the cutting tool is provided with a cutting position at which the cutting end extends into the working cavity to cut a to-be-cut object, and the cutting tool is provided with an initial position at which the cutting end exits the working cavity; wherein, the position department that has the via hole structure of installation piece is formed with the scale mark, and the axial extension setting along the via hole structure of scale mark is according to the scale mark with the length that the regulation cutting end stretched into the working chamber.

Further, the chamber cross-section of working chamber is circular, and the via hole structure sets up along the radial extension of working chamber, has seted up the observation window on the installation piece one side surface relative with the via hole structure, observation window and via hole structure intercommunication, and the scale mark is located the window border position department of observation window.

Further, the partial cavity wall of working chamber is along the radial sunken formation of working chamber and is held the chamber, holds the chamber and sets up with via hole structure looks interval, and cutting assembly still includes spring and spacing arch, and wherein, the first end of spring is connected with the chamber bottom surface that holds the chamber, and the second end and the spacing arch of spring are connected, and spacing arch has the position of accomodating holding the intracavity to and spacing arch has the limit position who stretches into the working chamber by the accent that holds the chamber.

Further, it is a plurality of to hold the chamber, and a plurality of chambers that hold set up around the circumference interval of working chamber, and spacing arch is a plurality of, and a plurality of spacing archs set up with a plurality of chamber one-to-ones that hold, and spacing arch is hemispherical, and when each spacing arch all was located limit position, each spacing bellied centre of sphere was located the positioning circle, and the positioning circle sets up with the working chamber is coaxial to will be located waiting that the work intracavity cuts the thing spacing and locate with the coaxial position of working chamber.

Further, the via hole structure is a plurality of, and a plurality of via hole structures set up around the circumference interval of installation piece, and cutting tool is a plurality of, and a plurality of cutting tool set up with a plurality of via hole structure one-to-ones to make a plurality of cutting tool be radial setting, the observation window is a plurality of, and a plurality of observation windows set up with a plurality of via hole structure one-to-ones.

Further, when each cutting tool all was located the cutting position, each cutting end stretched into the length of working chamber and equals, and a plurality of cutting ends set up with a plurality of spacing archs looks interval.

Further, the mounting block comprises a first mounting block and a second mounting block, wherein the first mounting block is provided with a first arc-shaped notch; the position department relative with first arc breach of second installation piece is formed with second arc breach, the first end that has second arc breach one side of second installation piece and the first end pivotal connection that has first arc breach one side of first installation piece to make first arc breach and second arc breach enclose into the working chamber.

Furthermore, the mounting block also comprises a first clamping structure and a second clamping structure, wherein the first clamping structure is arranged on the first mounting block and is positioned at the second end of the first mounting block, which is provided with the first arc-shaped notch; the second clamping structure is arranged on the second mounting block and is positioned at the second end of the second mounting block, which is provided with a second arc-shaped notch; the first mounting block and the second mounting block are connected through the clamping cooperation of the first clamping structure and the second clamping structure.

Furthermore, the first clamping structure is positioned on the surface of the first mounting block with the side of the observation window, and the second clamping structure is positioned on the surface of the second mounting block with the side of the observation window.

Furthermore, an avoiding gap is formed in one side, far away from the working cavity, of the position of the pivot connection of the first mounting block and the second mounting block, and when the clamping connection of the first clamping connection structure and the second clamping connection structure is released, the avoiding gap is used for providing an avoiding space for the first mounting block and/or the second mounting block.

Furthermore, a connecting line between the clamping connection position and the pivoting connection position of the first mounting block and the second mounting block is arranged along the radial direction of the working cavity, and the first mounting block and the second mounting block are symmetrically arranged relative to the connecting line between the clamping connection position and the pivoting connection position.

Further, the cutting tool comprises a tool shank, a tool bit and a handle structure, wherein the tool bit is arranged at one end of the tool shank to form a cutting end, and the tool bit is detachably connected with the tool shank; the handle structure is disposed at the other end of the handle to form a gripping end.

According to the technical scheme, the cutting assembly comprising the mounting block and the cutting tool is provided, so that when an object to be cut is cut, the object to be cut is placed in the working cavity of the mounting block, then the cutting end of the cutting tool penetrates through the via hole structure on the mounting block and extends into the working cavity, the cutting tool is switched from the initial position to the cutting position, the cutting end of the cutting tool can be enabled to cut the object to be cut in the working cavity, the thickness of the object to be cut is obtained in advance in the process that the cutting tool is switched from the initial position to the cutting position, the length of the cutting end extending into the working cavity is adjusted according to the scale lines on the mounting block, the cutting accuracy of the cutting tool is guaranteed, and the reliability of the cutting operation of the cutting assembly is guaranteed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 illustrates a schematic structural view of a cutting assembly according to an alternative embodiment of the present invention;

fig. 2 shows a schematic view of another perspective of the cutting assembly of fig. 1.

Wherein the figures include the following reference numerals:

10. mounting blocks; 11. a working chamber; 111. a limiting bulge; 12. an observation window; 13. a first mounting block; 14. a second mounting block; 15. a first clamping structure; 16. a second clamping structure; 20. cutting a cutter; 21. a knife handle; 22. a cutter head; 23. a handle structure; 30. avoiding the gap.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a cutting assembly, aiming at solving the problem that an optical cable cutting device in the prior art cannot accurately cut an optical cable.

As shown in fig. 1 and 2, the cutting assembly includes a mounting block 10 and a cutting tool 20, the mounting block 10 having a working chamber 11 and a via structure communicating with the working chamber 11; the cutting tool 20 is provided with a cutting end, the cutting end penetrates through the via hole structure and extends into the working cavity 11, the cutting tool 20 is movably arranged along the axial direction of the via hole structure, the cutting tool 20 is provided with a cutting position at which the cutting end extends into the working cavity 11 to cut a to-be-cut object, and the cutting tool 20 is provided with an initial position at which the cutting end exits the working cavity 11; wherein, the position department that has the via hole structure of installation piece 10 is formed with the scale mark, and the axial extension setting along the via hole structure of scale mark is according to the scale mark with the length that the regulation cutting end stretched into working chamber 11.

The application provides a cutting assembly including installation piece 10 and cutting tool 20, like this, when treating the cutting thing and cutting the operation, will treat that the cutting thing is placed in the working chamber 11 of installation piece 10 earlier, pass the via hole structure on the installation piece 10 and stretch into in the working chamber 11 with the cutting end of cutting tool 20 again, make cutting tool 20 switch to the cutting position by initial position, thereby ensure that the cutting end of cutting tool 20 can treat the cutting thing and cut the operation in working chamber 11, switch to the in-process of cutting position at above-mentioned cutting tool 20 by initial position, acquire the thickness that the thing that treats the cutting needs to cut in advance, adjust the length that the cutting end stretches into working chamber 11 according to the scale mark on the installation piece 10, thereby ensure the accurate nature of cutting tool 20, and then ensure the reliability of cutting operation of cutting assembly.

Note that in this application, the object to be cut may be an optical cable or the like.

It should be noted that, in the present application, considering that the outer sheath of the optical cable is a cylindrical structure, in order to ensure that the cutting assembly can fix the optical cable and smoothly complete the cutting operation, as shown in fig. 1 and 2, the cross section of the cavity of the working cavity 11 is circular, the via hole structure is arranged along the radial extension of the working cavity 11, an observation window 12 is opened on the surface of one side of the mounting block 10 opposite to the via hole structure, the observation window 12 is communicated with the via hole structure, and the scale mark is located at the position of the window edge of the observation window 12. In this way, the provision of the observation window 12 ensures that the operator can observe the feed amount of the cutting end of the cutting tool 20 from the observation window 12 in time.

As shown in fig. 1 and 2, the partial cavity wall surface of the working cavity 11 is recessed along the radial direction of the working cavity 11 to form a containing cavity, the containing cavity is arranged at intervals with the via hole structure, the cutting assembly further comprises a spring and a limiting protrusion 111, wherein the first end of the spring is connected with the cavity bottom surface of the containing cavity, the second end of the spring is connected with the limiting protrusion 111, the limiting protrusion 111 is provided with a containing position contained in the containing cavity, and the limiting protrusion 111 is provided with a limiting position extending into the working cavity 11 from the cavity opening of the containing cavity. Therefore, the limiting bulge 111 is movably arranged relative to the wall surface of the working cavity 11 in the radial direction, so that the cutting assembly provided by the application can be suitable for optical cables with different diameters, and the application range of the cutting assembly is favorably widened; in addition, when the limiting protrusion 111 is located at the limiting position, the limiting protrusion 111 plays a role of reserving a gap between the object to be cut and the cutting end of the cutting tool 20, and the object to be cut is prevented from being damaged due to the direct contact between the cutting end of the cutting tool 20 and the object to be cut in the process of extending into the working cavity 11.

Optionally, the accommodating cavities are multiple, the accommodating cavities are arranged around the working cavity 11 at intervals in the circumferential direction, the limiting protrusions 111 are multiple, the limiting protrusions 111 and the accommodating cavities are arranged in a one-to-one correspondence manner, the limiting protrusions 111 are hemispherical, when the limiting protrusions 111 are located at limiting positions, the centers of the limiting protrusions 111 are located on a positioning circle, and the positioning circle is arranged coaxially with the working cavity 11, so that a to-be-cut object located in the working cavity 11 is limited at a position coaxial with the working cavity 11. In this way, it is ensured that the plurality of limit projections 111 can limit the work piece as much as possible at the position coaxially disposed with the working chamber 11, thereby ensuring the cutting reliability of the cutting end of the cutting tool 20.

It should be noted that, in the present application, the cutting tool 20 is rotated around the circumferential direction of the working cavity 11, and at the same time, the mounting block 10 rotates with the cutting tool 20, and during the rotation of the cutting tool 20, the cutting end of the cutting tool 20 rotates around the outer circumferential side of the object to be cut for one circle, so as to cut the outer sheath of the object to be cut; further, in case that the work to be cut includes the inner sheath, the above cutting work is repeated to cut the inner sheath of the work to be cut.

Optionally, the number of the via hole structures is multiple, the plurality of via hole structures are arranged around the mounting block 10 at intervals in the circumferential direction, the number of the cutting tools 20 is multiple, the plurality of cutting tools 20 and the plurality of via hole structures are arranged in a one-to-one correspondence manner, so that the plurality of cutting tools 20 are arranged in a radial manner, the number of the observation windows 12 is multiple, and the plurality of observation windows 12 and the plurality of via hole structures are arranged in a one-to-one correspondence manner. Like this, a plurality of cutting tool 20's setting ensures rotatory less angle alright in order to accomplish the cutting operation, avoids cutting tool 20 rotatory a week, is favorable to improving cutting assembly's cutting efficiency.

It should be noted that, in the present application, when each cutting tool 20 is located at the cutting position, the lengths of the cutting ends extending into the working cavity 11 are equal, and the plurality of cutting ends and the plurality of limiting protrusions 111 are arranged at intervals. Therefore, the interference phenomenon between the cutting end of the cutting tool 20 and the limiting protrusion 111 is avoided, and the cutting reliability of the cutting tool 20 can be ensured while the limiting reliability of the limiting protrusion 111 is ensured.

As shown in fig. 1 and 2, the mounting block 10 includes a first mounting block 13 and a second mounting block 14, wherein the first mounting block 13 has a first arc-shaped notch; the second installation block 14 is provided with a second arc-shaped notch at a position opposite to the first arc-shaped notch, and the first end of the second installation block 14, which is provided with one side of the second arc-shaped notch, is pivotally connected with the first end of the first installation block 13, which is provided with one side of the first arc-shaped notch, so that the first arc-shaped notch and the second arc-shaped notch enclose the working cavity 11. In this way, the mounting block 10 comprises the first mounting block 13 and the second mounting block 14, and the first mounting block 13 and the second mounting block 14 are pivotally connected, so that the convenience of placing the work piece into the working chamber 11 is improved.

As shown in fig. 1 and fig. 2, the mounting block 10 further includes a first clamping structure 15 and a second clamping structure 16, wherein the first clamping structure 15 is disposed on the first mounting block 13 and is located at a second end of the first mounting block 13 on the side having the first arc-shaped notch; the second clamping structure 16 is arranged on the second mounting block 14 and is located at a second end of the second mounting block 14, which is provided with a second arc-shaped notch; the first and

second mounting blocks

13 and 14 are connected by the snap-fit action of the first and

second snap structures

15 and 16. In this way, the connection reliability of the first mounting block 13 and the second mounting block 14 is ensured, so that when the cutting tool 20 drives the mounting block 10 to rotate, the rotation stability of the mounting block 10 is ensured, and the cutting reliability of the cutting assembly is ensured.

As shown in fig. 1 and 2, the first latch structure 15 is located on a surface of the first mounting block 13 on the side having the observation window 12, and the second latch structure 16 is located on a surface of the second mounting block 14 on the side having the observation window 12. Like this, the simple operation nature of cutting assembly has been promoted.

As shown in fig. 1 and 2, a side of the pivotal connection position of the first mounting block 13 and the second mounting block 14, which is far away from the working chamber 11, is provided with an escape notch 30, and when the first clamping structure 15 and the second clamping structure 16 are released from clamping, the escape notch 30 is used for providing an escape space for the first mounting block 13 and/or the second mounting block 14. In this way, it is ensured that the first mounting block 13 and the second mounting block 14 can be opened smoothly to facilitate the subsequent placement of the work piece into the work chamber 11.

It should be noted that in the present application, the object to be cut may be a fiber optic cable, and when the fiber optic cable is located in the working chamber 11, the axial direction of the fiber optic cable is parallel to the axial direction of the working chamber 11.

As shown in fig. 1 and 2, a line connecting the click connection position and the pivot connection position of the first mounting block 13 and the second mounting block 14 is arranged in a radial direction of the working chamber 11, and the first mounting block 13 and the second mounting block 14 are arranged symmetrically with respect to the line connecting the click connection position and the pivot connection position. In this way, the difficulty in machining and manufacturing the first mounting block 13 and the second mounting block 14 is reduced, and thus the first mounting block 13 and the second mounting block 14 can be machined and manufactured in a large batch.

As shown in fig. 1 and 2, the cutting tool 20 includes a shank 21, a cutting head 22 and a handle structure 23, wherein the cutting head 22 is disposed at one end of the shank 21 to form a cutting end, and the cutting head 22 is detachably connected to the shank 21; a handle structure 23 is provided at the other end of the shank 21 to form a gripping end. Therefore, the cutter head 22 is detachably connected with the cutter handle 21, so that the cutter head 22 is convenient to replace, and the service life of the cutting assembly is ensured; furthermore, the provision of the handle structure 23, on the one hand, facilitates the operator screwing the handle structure 23 to screw the tool head 22 into the working chamber 11; on the other hand, when performing a cutting operation on the object to be cut, the operator rotates the cutter head 22 by a preset angle around the outer peripheral side of the object to be cut by holding the grip structure 23 to complete the cutting operation.

It should be noted that, in the present application, the via structure is a through hole, and the hole diameter of the via structure is 15 mm.

It should be noted that, in this application, the cutting assembly provided by this application is applicable to 8 cores to 48 cores of ADSS optical cable, and the gauge range is between 100m to 800m, and the diameter range of optical cable is between 12.2mm to 14.2mm, can compromise most ADSS optical cable as far as possible.

In the present application, the first mounting block 13 and the second mounting block 14 are hinged.

In the present application, the tool bit 22 is a conical tool bit, and the tool bit 22 and the tool shank 21 are connected by a screw.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cutting assembly, comprising:

the mounting block (10) is provided with a working cavity (11) and a via hole structure communicated with the working cavity (11);

a cutting tool (20), the cutting tool (20) having a cutting end, the cutting end passing through the via structure and protruding into the working cavity (11), the cutting tool (20) being movably arranged in the axial direction of the via structure, the cutting tool (20) having a cutting position in which the cutting end protrudes into the working cavity (11) to cut the object to be cut, and the cutting tool (20) having an initial position in which the cutting end exits the working cavity (11);

the position of the mounting block (10) with the via hole structure is provided with scale marks, the scale marks are arranged along the axial extension of the via hole structure, and the cutting end stretches into the length of the working cavity (11) according to the scale marks in order to adjust.

2. The cutting assembly according to claim 1, wherein the working chamber (11) has a circular cross-section, the via structure is disposed along a radial extension of the working chamber (11), a viewing window (12) is disposed on a surface of the mounting block (10) opposite to the via structure, the viewing window (12) is communicated with the via structure, and the scale mark is located at a window edge position of the viewing window (12).

3. The cutting assembly according to claim 2, characterized in that a part of the cavity wall surface of the working cavity (11) is recessed along the radial direction of the working cavity (11) to form a receiving cavity, the receiving cavity is arranged at an interval from the via hole structure, the cutting assembly further comprises a spring and a limiting protrusion (111), wherein a first end of the spring is connected with the cavity bottom surface of the receiving cavity, a second end of the spring is connected with the limiting protrusion (111), the limiting protrusion (111) has a receiving position received in the receiving cavity, and the limiting protrusion (111) has a limiting position extending into the working cavity (11) from the cavity opening of the receiving cavity.

4. The cutting assembly according to claim 3, characterized in that the receiving cavity is a plurality of receiving cavities arranged at intervals around the circumference of the working cavity (11), the limiting protrusion (111) is a plurality of limiting protrusions (111), the limiting protrusions (111) and the receiving cavities are arranged in a one-to-one correspondence, the limiting protrusion (111) is hemispherical, when each limiting protrusion (111) is located at the limiting position, the sphere center of each limiting protrusion (111) is located on a positioning circle, and the positioning circle is arranged coaxially with the working cavity (11) to limit the object to be cut located in the working cavity (11) at a position coaxial with the working cavity (11).

5. The cutting assembly according to claim 4, wherein the plurality of via structures are provided at intervals around the circumference of the mounting block (10), the plurality of cutting tools (20) are provided in one-to-one correspondence with the plurality of via structures, such that the plurality of cutting tools (20) are provided in a radial shape, the plurality of observation windows (12) are provided in one-to-one correspondence with the plurality of via structures (12).

6. The cutting assembly according to claim 5, wherein when each cutting tool (20) is in the cutting position, each cutting end extends into the working cavity (11) for an equal length, and a plurality of cutting ends are spaced apart from the plurality of limiting protrusions (111).

7. The cutting assembly according to claim 6, characterized in that the mounting block (10) comprises:

a first mounting block (13), the first mounting block (13) having a first arcuate notch;

the first end of the second mounting block (14) with one side of the second arc-shaped notch is pivotally connected with the first end of the first mounting block (13) with one side of the first arc-shaped notch, so that the first arc-shaped notch and the second arc-shaped notch enclose the working cavity (11).

8. The cutting assembly according to claim 7, wherein the mounting block (10) further comprises:

the first clamping structure (15) is arranged on the first mounting block (13) and is positioned at the second end of the first mounting block (13) on one side with the first arc-shaped notch;

the second clamping structure (16) is arranged on the second mounting block (14) and is positioned at a second end of the second mounting block (14) on one side with the second arc-shaped notch;

the first clamping structure (15) and the second clamping structure (16) are clamped to be matched so as to connect the first mounting block (13) and the second mounting block (14).

9. The cutting assembly of claim 8,

the first clamping structure (15) is located on the surface of one side of the observation window (12) of the first installation block (13), and the second clamping structure (16) is located on the surface of one side of the observation window (12) of the second installation block (14).

10. The cutting assembly according to claim 9, characterized in that the side of the pivotal connection of the first mounting block (13) to the second mounting block (14) remote from the working chamber (11) is provided with an avoidance gap (30), the avoidance gap (30) being adapted to provide an avoidance space for the first mounting block (13) and/or the second mounting block (14) when the first clamping structure (15) and the second clamping structure (16) are released from clamping.

11. The cutting assembly according to claim 10, characterized in that a line between the snap connection location and the pivot connection location of the first mounting block (13) and the second mounting block (14) is arranged in a radial direction of the working chamber (11), and the first mounting block (13) and the second mounting block (14) are arranged symmetrically with respect to the line between the snap connection location and the pivot connection location.

12. The cutting assembly according to claim 1, wherein the cutting knife (20) comprises:

a knife handle (21);

a cutting head (22), the cutting head (22) being arranged at one end of the shank (21) to form the cutting end, the cutting head (22) being detachably connected to the shank (21);

a handle structure (23), the handle structure (23) being disposed at the other end of the handle (21) to form a gripping end.