CN214072323U

CN214072323U - Draft holder for industrial design

Info

Publication number: CN214072323U
Application number: CN202022611951.6U
Authority: CN
Inventors: 黄美霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-08-31
Anticipated expiration: 2030-11-12

Abstract

The utility model relates to a draft holder for industrial design for fixed drawing paper, comprising a frame body, the installation pole, fixed subassembly and drawing board, be equipped with the exit slot on the support body, the drawing board is installed at the support body top, the drawing board is including the first end that is close to the exit slot and the second end of keeping away from the exit slot, the installation pole rotates and installs on the support body, the drawing paper roll-up is on the installation pole, and drawing paper one end is fixed on the installation pole, other end accessible exit slot extends openly at the drawing board, fixed subassembly is equipped with the multiunit, the fixed subassembly of multiunit is installed respectively on the first end and the second end of drawing board, fixed subassembly is used for fixing the drawing paper openly at the drawing board. The user can directly take out and fix the drawing paper of installing on the draft holder and use, improves user's work efficiency.

Description

Draft holder for industrial design

Technical Field

The utility model relates to a draft holder technical field specifically is a draft holder for industrial design.

Background

Industrial design, also known as industrial product design science, refers to the design of industrial products based on engineering, aesthetics and economics, and is divided into 4 categories, namely product design, environmental design, propagation design and design management. In order to guarantee the going on of drawing when the industrial design, generally all need use the draft holder to assist designer's drawing, and current industrial design draft holder, simple structure still need follow other places to the drawing paper and take after fixed drawing again, this kind of operating means has increased the operating time that the user prepared earlier stage, and then leads to work efficiency to reduce.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

For solving the above problem, the utility model provides a draft holder for industrial design can directly take out and fix the drawing paper of installing on the draft holder and use, improves user's work efficiency.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a draft holder for industrial design, a including the support body, the installation pole, fixed subassembly and drawing board, be equipped with the exit slot on the support body, the drawing board is installed at the support body top, the drawing board is held including the first end that is close to the exit slot and the second of keeping away from the exit slot, the installation pole rotates and installs on the support body, the drawing paper roll-up is on the installation pole, and drawing paper one end is fixed on the installation pole, other end accessible exit slot extends openly at the drawing board, fixed subassembly is equipped with the multiunit, the fixed subassembly of multiunit is installed respectively on the first end and the second of drawing board are held, fixed subassembly is used for fixing the drawing paper openly at the drawing board.

Preferably, still include the pole of cutting a sheet of paper, the drawing board openly includes the first side and the second side of keeping away from each other, the third side and the fourth side of keeping away from each other, and the second side is close to the exit slot setting, and the pole of cutting a sheet of paper is on a parallel with the drawing board and perpendicular to erects on the drawing board of first side to can follow first side length direction and slide, be equipped with the scale mark on the first side length direction of drawing board.

Preferably, the fixing assembly comprises a fixing plate and a fixing cap, the third side and the fourth side are symmetrically provided with a plurality of fixing holes, the plurality of fixing holes are arranged along the length direction of the third side and the fourth side, the fixing plate is erected on the drawing board perpendicular to the third side, and the fixing cap can be in threaded connection with the fixing holes through two ends of the fixing plate.

Preferably, fixed subassembly includes magnetic part and adsorbs the piece, and magnetic part and the corresponding a plurality ofly that is equipped with of piece that adsorbs, and a plurality ofly adsorb the piece and fix respectively in the first side and the second side of drawing board, and magnetic part can place openly and adsorb with adsorbing the piece at the drawing board.

Preferably, the support body is including storing up the object, and the storing body is equipped with open-top's first chamber that holds, and the exit slot passes through open-top and holds the chamber switch-on with first, and the installation pole is located first intracavity that holds and is connected with the storing body rotation.

Preferably, the support body is equipped with open-top's third and holds the chamber, and the drawing board is located the third and is held the intracavity and the first end of drawing board rotates with the support body to be connected, and the drawing board reverse side is equipped with the bracing piece, bracing piece one end and drawing board swivelling joint, and the third holds the chamber bottom and is equipped with a plurality of joint mouths, and the bracing piece other end is used for supporting the drawing board with the mutual joint of joint mouth.

Preferably, the paper outlet is arranged at the bottom of the third accommodating cavity.

Preferably, still include the retaining member, the support body side is equipped with the connecting hole of switch-on third holding chamber, and the retaining member passes through connecting hole and drawing board second end threaded connection.

Preferably, still including cutting out the sword, drawing board one end is equipped with the standing groove, and the standing groove is used for placing and cuts out the sword.

(III) advantageous effects

The utility model has the advantages that:

the utility model provides a pair of draft holder for industrial design for fixed drawing paper, comprising a support body, the installation pole, fixed subassembly and drawing board, be equipped with the exit slot on the support body, the drawing board is installed at the support body top, the drawing board is including the first end that is close to the exit slot and the second end of keeping away from the exit slot, the installation pole rotates and installs on the support body, the drawing paper roll-up is on the installation pole, and drawing paper one end is fixed on the installation pole, other end accessible exit slot extends openly at the drawing board, fixed subassembly is equipped with the multiunit, the first end and the second that the multiunit was fixed the subassembly and is installed respectively at the drawing board are held, fixed subassembly is used for fixing the drawing paper openly at the drawing board. The user can directly take out and fix the drawing paper of installing on the draft holder and use, improves user's work efficiency.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, 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 shows a schematic structural diagram 1 of an embodiment of the present invention

Fig. 2 shows a schematic structural diagram 2 of an embodiment of the present invention

FIG. 3 shows an enlarged view of portion B of FIG. 1

FIG. 4 shows an enlarged view of portion A of FIG. 1

Fig. 5 shows a frame body structure schematic diagram 1 of the embodiment of the present invention

Fig. 6 shows a frame structure schematic diagram 2 of an embodiment of the present invention

Fig. 7 shows a schematic top structure diagram of an embodiment of the present invention

In the figure: 1 support body, 11 second holds the chamber, 12 third holds the chamber, 121 joint mouth, 122 exit slot, 13 connecting holes, 2 installation poles, 3 fixed subassembly, 31 locking cap, 32 fixed plate, 33 magnetic part, 34 adsorption part, 4 drawing boards, 41 first side, 411 scale mark, 42 second side, 421 fixed orifices, 43 third sides, 44 fourth sides, 45 first recess side, 46 second recess side, 47 bracing piece, 48 standing groove, 5 cut a sheet of paper pole, 6 storage objects, 61 first holds the chamber, 7 retaining member, 8 cut out the sword, 8 installation poles, 2 fixed components, 31 fixed caps, 32 fixed plates, 33 magnetic parts, 34 adsorption part, 4 drawing boards, 41 first sides, 411 scale mark, 42 second sides, 421 fixed orifices, 43 third sides, 44 fourth sides, 45 first recess side, 46 second recess side, 47 bracing piece, 48 standing grooves, 5 cut a sheet of paper pole, 6 storage objects, 61 first holds the chamber, 7 retaining member, 8

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the drawings 1-7 the utility model discloses a draft holder for industrial design for fixed drawing paper, comprising a frame body 1, installation pole 2, fixed subassembly 3 and drawing board 4, be equipped with exit slot 122 on the support body 1, drawing board 4 is installed at 1 top of support body, drawing board 4 includes the first end that is close to exit slot 122 and keeps away from the second end of exit slot 122, installation pole 2 rotates and installs on support body 1, the drawing paper roll-up is on installation pole 2, and drawing paper one end is fixed on installation pole 2, other end accessible exit slot 122 extends openly at drawing board 4, fixed subassembly 3 is equipped with the multiunit, multiunit fixed subassembly 3 is installed respectively on the first end and the second end of drawing board 4, fixed subassembly 3 is used for fixing drawing paper at drawing board 4 openly.

Based on the above-mentioned scheme, when the user uses this draft holder for industrial design for the first time, need the user to pass the drawing paper other end of roll-up on installation pole 2 paper exit 122, make the drawing paper expand drawing board 4 openly, then stimulate the drawing paper other end to drawing board 4 second end and fix through installing fixed subassembly 3 on the second end, part that is close to paper exit 122 to the drawing paper through installing fixed subassembly 3 on first end is fixed after, accomplish the drawing to the drawing paper on drawing board 4, the user can cut the drawing paper that draws the pattern, should guarantee that fixed subassembly 3 on first end is fixed to the drawing paper all the time when the cutting, the fold appears in the drawing paper when avoiding the cutting, lead to the drawing paper cutting untidy.

After the cutting is finished, the fixing component 3 on the first end still keeps the fixing of the drawing paper, when the drawing frame for industrial design needs to be used again, the user firstly pulls the drawing paper fixed on the first end of the drawing board 4 with the hand, then releases the fixing of the fixing component 3 on the first end to the drawing paper, when the drawing paper extends to the second end of the drawing board 4, the fixing component 3 on the first end and the second end fixes the drawing paper, so that the user draws the drawing paper extending to the drawing board 4. Generally speaking, this draft holder for industrial design can directly take out and fix the drawing paper of installing on the draft holder and use, improves user's work efficiency.

Further, still include the cutting rod 5, the drawing board front includes first side 41 and the second side 42 that keep away from each other, third side 43 and the fourth side 44 that keep away from each other, and second side 42 is close to exit slot 122 and sets up, and the setting that the cutting rod 5 is on a parallel with drawing board 4 and perpendicular to first side 41 is on drawing board 4 to can slide along first side 41 length direction, be equipped with scale mark 411 on the first side 41 length direction of drawing board.

When the user finishes designing on the drawing paper, the paper cutting lever 5 may be slid to be aligned with the corresponding scale lines 411, at which time the drawing paper lateral size is determined, and the user may cut it.

Further, the fixing assembly 3 includes a fixing plate 32 and a fixing cap 31, the third side 43 and the fourth side 44 are symmetrically provided with a plurality of fixing holes 421, the plurality of fixing holes 421 are arranged along the length direction of the third side 43 and the fourth side 44, the fixing plate 32 is erected on the drawing plate 4 perpendicular to the third side 43, and the fixing cap 31 can be screwed with the fixing holes 421 through both ends of the fixing plate 32.

In actual production process, for more stable fixed drawing paper, fixed subassembly 3 can adopt fixed plate 32 and locking cap 31 fixed, and is equipped with two sets ofly, and two fixed plates 32 can be located the first side 41 of drawing board 4 and the second side 42 of drawing board respectively, and locking cap 31 can be fixed plate 32 on drawing board 4 through fixed orifices 421 respectively, and then fixes the positive drawing paper both ends of drawing board 4 that extend respectively.

Further, the fixing assembly 3 includes a plurality of magnetic members 33 and a plurality of absorption members 34, the magnetic members 33 and the absorption members 34 are correspondingly disposed, and the plurality of absorption members 34 are respectively fixed on the first side 41 and the second side 42 of the drawing board, the magnetic members 33 can be placed on the front surface of the drawing board 4 and absorbed by the absorption members 34.

In actual production process, fix and dismantle the drawing paper for the convenience more, can adopt the fixed mode of magnetic part 33 and absorption piece 34, a plurality of absorption pieces 34 are fixed respectively in the first side 41 and the second side 42 of drawing board 4, after the drawing paper extends on drawing board 4, can place magnetic part 33 on the drawing paper, and corresponding absorption piece 34 places, the drawing paper is fixed by the power centre gripping between magnetic part 33 and the absorption piece 34 this moment, and then realize the fixed to the drawing paper both ends.

In this embodiment, the first side 41 of the drawing board 4 is fixed by the magnetic member 33 and the suction member 34, and the second side 42 of the drawing board 4 is fixed by the fixing plate 32 and the fixing cap 31, because the drawing paper itself needs to be prevented from shrinking back to the mounting rod 2 due to shrinkage force after cutting the drawing paper, if the fixing method of the magnetic member 33 and the suction member 34 is adopted for the drawing paper on the second side 42 of the drawing board 4, there is a high requirement for the suction force between the magnetic member 33 and the suction member 34, so in this embodiment, the fixing of the fixing plate 32 and the fixing cap 31 on the second side 42 of the drawing board 4 is suitable for the drawing paper on the first side 41 of the drawing board 4, and the fixing method of the magnetic member 33 and the suction member 34 is adopted for the fixing of the drawing paper by the user, specifically, the magnetic member 33 is made of iron stone, the adsorbing member 34 is made of iron sheet.

In addition, in this embodiment, the plurality of fixing holes 421 symmetrically disposed on the third side 43 and the fourth side 44 of the drawing board 4 correspond to different sizes, a groove is disposed on the front surface of the drawing board 4, a groove opening is disposed on one side of the groove parallel to and close to the paper exit 122, the groove includes a first groove side surface 45 and a second groove side surface 46, the first groove side surface 45 is a surface perpendicular to the groove opening and away from the scale line 411, the second groove side surface 46 is a surface away from the groove opening, the magnet and the iron sheet are disposed on one end of the groove bottom surface away from the groove opening, and the fixing plate and the fixing cap are disposed on one end of the groove bottom surface close to the groove opening.

In general, when a user uses the industrial design drawing frame to draw a drawing, the user needs to use drawing papers of different sizes, and at this time, the user needs to find out the drawing papers of different sizes and then replace them, and in this embodiment, when using the industrial design drawing frame, the user can first unscrew the fixing cap 31 to separate from the drawing board 4, the user then pulls the drawing sheet from below the fixing plate 32 along the bottom surface of the groove, at which time one side of the drawing sheet contacts the first groove side surface 45, and after the other end of the drawing sheet contacts the second groove side surface 46, the user can move the fixing plate 32 and the fixing cap 31 above the corresponding fixing hole 421 according to the size of the drawing paper required by the user, and then tighten the fixing cap 31, at which time the lower end of the paper is fixed, and then place the magnet over the paper and in coincidence with the set iron piece, at which time the upper end of the drawing paper is fixed. After the fixing, a user can design and draw on the drawing paper, and when the drawing paper is not available, the magnet can be directly adsorbed on the iron sheet.

It is specific, still including cutting out sword 8, 4 one ends of drawing board are equipped with standing groove 48, standing groove 48 is used for placing and cuts out sword 8, the user accomplishes the design back, can remove cutting rod 5 to the scale mark 411 that the drawing paper that oneself needs corresponds on, then, the user takes out cutting out sword 8 from standing groove 48, cut out drawing paper along cutting rod 5 and fixed plate 32 respectively, there are the support of cutting rod 5 and fixed plate 32, when cutting out drawing paper, just can not be askew with drawing paper, in addition because drawing paper is fixed by fixed plate 32, drawing paper also can not shrink once more to installation pole 2 on, made things convenient for the user to use drawing paper next time. In the embodiment of the present invention, the paper cutting rod 5 and the fixing plate 32 are required to be cut along one side of the first side 41 of the groove and one side of the second side 42 of the groove during cutting, so as to obtain the drawing paper with the corresponding size. The user does not need to find out the drawing paper with different sizes from other places and then replace the drawing paper for use every time, and convenience is brought to the user.

Further, support body 1 is including storing up object 6, and storing body 6 is equipped with open-top's the first chamber 61 that holds, and exit slot 122 is connected through open-top and the first chamber 61 that holds, and installation pole 2 is located the first chamber 61 that holds and is connected with storing up object 6 rotation, and is concrete, and the second that is equipped with side open-ended on support body 1 holds chamber 11, and storing body 6 is installed in the second holds chamber 11.

In this embodiment, locate 1 inboard with the drawing paper of support body, can make the drawing frame for industrial design whole look more pleasing to the eye, also can separate first chamber 61 that holds for a plurality of storing chambeies simultaneously, the user can place the drawing paper that draws and drawing appliance in each separated storing intracavity, more does benefit to and preserves the work and the drawing appliance that accomplish well. In addition, a handle can be arranged on one side of the storage body 6, so that the storage body 6 is more convenient to mount and take.

Further, support body 1 is equipped with open-top's third and holds chamber 12, and drawing board 4 is located the third and holds in

chamber

12 and 4 first ends of drawing board rotate with support body 1 and be connected, and 4 reverse sides of drawing board are equipped with bracing piece 47, and bracing piece 47 one end and 4 swivelling joints of drawing board, the third hold chamber 12 bottom and be equipped with a plurality of joint interfaces 121, and the bracing piece 47 other end is used for supporting drawing board 4 with the mutual joint of joint interface 121.

The utility model discloses an in the embodiment, the user can be rotatory behind suitable angle with drawing board 4, borrow the cooperation of mouth with the card through bracing piece 47, fix drawing board 4, the uncomfortable that produces of drawing at same angle for a long time of having avoided the user is felt, it is concrete, exit slot 122 sets up and holds chamber 12 bottom in the third, the user is when drawing paper, need not open storage object 6 and just can directly pull out drawing paper along exit slot 122, wherein, 4 recess side opening one end of drawing board, can set to the arc surface, can be at the extension in-process like this, avoid producing wearing and tearing to drawing paper. When not using the draft holder for industrial design, the support rod 47 can be rotated to be parallel to the drawing board 4, and then the drawing board 4 is rotated to be accommodated in the third accommodation chamber 12. Specific, still include retaining member 7, 1 side of support body is equipped with the connecting hole 13 that the switch-on third held chamber 12, retaining member 7 passes through connecting

hole

13 and 4 second end threaded connection of drawing board, hold chamber 12 back with 4 rotations of drawing board to the third, the user can use retaining member 7 to fix drawing board 4 and support body 1, at this moment, drawing board 4 is fixed and is held in chamber 12 at the third, made things convenient for the user to the removal of drawing frame for industrial design, when the user need use the drawing frame for industrial design, unscrew retaining member 7 to break away from with drawing board 4 can.

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 application 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.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

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 should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The drawing frame for industrial design is used for fixing drawing paper and is characterized by comprising a frame body (1), an installation rod (2), a fixing component (3) and drawing boards (4), wherein a paper outlet (122) is formed in the frame body (1), the drawing boards (4) are installed at the top of the frame body (1), each drawing board (4) comprises a first end close to the paper outlet (122) and a second end far away from the paper outlet (122), the installation rod (2) is rotatably installed on the frame body (1), the drawing paper is wound on the installation rod (2), one end of each drawing paper is fixed on the installation rod (2), the other end of each drawing paper can extend to the front side of the drawing board (4) through the paper outlet (122), the fixing component (3) is provided with multiple groups, the multiple groups of the fixing components (3) are respectively installed at the first end and the second end of the drawing board (4), the fixing component (3) is used for fixing the drawing paper on the front surface of the drawing board (4).

2. A drawing frame for industrial design according to claim 1, further comprising a cutting rod (5), wherein the front face of the drawing board (4) comprises a first side (41) and a second side (42) far away from each other, a third side (43) and a fourth side (44) far away from each other, the second side (42) is disposed near the paper outlet (122), the cutting rod (5) is disposed on the drawing board (4) in parallel with the drawing board (4) and perpendicular to the first side (41) and can slide along the length direction of the first side (41), and the first side (41) of the drawing board (4) is provided with scale lines (411) in the length direction.

3. The draft holder for industrial design according to claim 2, wherein the fixing member (3) comprises a fixing plate (32) and a fixing cap (31), the third side (43) and the fourth side (44) are symmetrically provided with a plurality of fixing holes (421), and the plurality of fixing holes (421) are arranged in a longitudinal direction of the third side (43) and the fourth side (44), the fixing plate (32) is erected on the draft plate (4) perpendicularly to the third side (43), and the fixing cap (31) is screwed with the fixing holes (421) through both ends of the fixing plate (32).

4. A drawing frame for industrial design according to claim 2, wherein the fixing member (3) comprises a plurality of magnetic members (33) and a plurality of suction members (34), the magnetic members (33) and the suction members (34) are provided in plurality, and the plurality of suction members (34) are respectively fixed on the first side (41) and the second side (42) of the drawing board (4), and the magnetic members (33) can be placed on the front surface of the drawing board (4) and sucked to the suction members (34).

5. The drawing frame for industrial design according to claim 1, wherein the frame body (1) comprises an object storage body (6), the object storage body (6) is provided with a first accommodating cavity (61) with an open top, the paper outlet (122) is communicated with the first accommodating cavity (61) through the open top, and the mounting rod (2) is arranged in the first accommodating cavity (61) and is rotatably connected with the object storage body (6).

6. The drawing frame for industrial design according to claim 1, wherein the frame body (1) is provided with a third accommodating cavity (12) with an open top, the drawing board (4) is arranged in the third accommodating cavity (12) and the first end of the drawing board (4) is rotatably connected with the frame body (1), a supporting rod (47) is arranged on the reverse side of the drawing board (4), one end of the supporting rod (47) is rotatably connected with the drawing board (4), a plurality of clamping ports (121) are arranged at the bottom of the third accommodating cavity (12), and the other end of the supporting rod (47) is mutually clamped with the clamping ports (121) to support the drawing board (4).

7. A drawing stand for industrial design according to claim 6, characterized in that the paper outlet (122) is arranged at the bottom of the third receiving chamber (12).

8. The drawing frame for industrial design according to claim 6, further comprising a locking member (7), wherein a connecting hole (13) communicating with the third accommodating cavity (12) is formed in the side surface of the frame body (1), and the locking member (7) is in threaded connection with the second end of the drawing board (4) through the connecting hole (13).

9. A drawing frame for industrial design according to claim 2, further comprising a cutting knife (8), wherein the drawing board (4) is provided with a placing groove (48) at one end, and the placing groove (48) is used for placing the cutting knife (8).