Hanging pencil box

Abstract

The utility model discloses a suspensible pencil box which comprises a pencil box body, a containing cavity is arranged in the pencil box body, and an opening is formed in the top side of the pencil box body. The cover body is arranged on the pencil box body in a turnover manner and is used for covering the opening of the pencil box body; one end of the clamp is detachably connected with the pencil box body, and the other end of the clamp is provided with a clamping jaw. According to the suspensible pencil box, when the suspensible pencil box is used, the box body of the pencil box can be clamped and fixed on the side edge of a drawing board or a nearby supportable object through the clamping jaw of the clamp, so that the suspensible pencil box can be prevented from being treaded and damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of drawing tools, in particular to a hangable pencil case. Background Art

[0002] The pencil case is mainly used to store pencils. Art students, such as those majoring in sketching, use a large number of pencils and drawing tools in the process of sketching. Art students often need to sketch outdoors. When sketching outdoors, in order to facilitate the replacement of pencils, the pencil case is usually placed on the ground at random. However, this can easily cause the pencil case to be stepped on and damaged. For example, art students may step on the pencil case without paying attention when drawing. Therefore, the existing technology needs to be improved and enhanced. Utility Model Content

[0003] The main purpose of the utility model is to provide a pencil case, aiming to solve the problem in the prior art that when art students are sketching outdoors, in order to facilitate the replacement of pencils, the pencil case is usually randomly placed on the ground, which can easily cause the pencil case to be stepped on and damaged.

[0004] To achieve the above object, the utility model provides a hangable pencil case, the hangable pencil case comprising:

[0005] A pencil case body, wherein the pencil case body has a built-in accommodating cavity and an opening on the top side;

[0006] A cover body, which is flippably arranged on the pencil case body and is used to cover the opening of the pencil case body;

[0007] A clamp, one end of which is detachably connected to the pencil case body, and the other end of which is provided with a clamping claw.

[0008] Optionally, the cover body includes a first flip cover plate and a second flip cover plate, and the first flip cover plate and the second flip cover plate are respectively flippably arranged on the outer sides of two opposite sides of the pencil case body and are symmetrical to each other.

[0009] Optionally, a first hinge seat and a second hinge seat are respectively provided on the outer sides of two opposite sides of the pencil case body, a first rotating shaft is provided on one side of the first flip plate, and the first flip plate is hinged to the first hinge seat through the first rotating shaft, and a second rotating shaft is provided on one side of the second flip plate, and the second flip plate is hinged to the second hinge seat through the second rotating shaft.

[0010] Optionally, a first elastic slot is provided on the first hinged seat, a first opening is provided on the top side of the first elastic slot, the first rotating shaft is rotatably arranged in the first elastic slot, and the diameter of the first opening is smaller than the rod diameter of the first rotating shaft; a second elastic slot is provided on the second hinged seat, a second opening is provided on the top side of the second elastic slot, the second rotating shaft is rotatably arranged in the second elastic slot, and the diameter of the second opening is smaller than the rod diameter of the second rotating shaft.

[0011] Optionally, the top end surfaces of the front and rear sides of the pencil case body are respectively provided with a first protrusion and a second protrusion, the first protrusion abuts against the inner side of the front side of the first flip cover plate, and the second protrusion abuts against the inner side of the rear side of the first flip cover plate.

[0012] Optionally, the top end surfaces of the front and rear sides of the pencil case body are respectively provided with a third protrusion and a fourth protrusion, the third protrusion abuts against the inner side of the front side of the second flip cover plate, and the fourth protrusion abuts against the inner side of the rear side of the second flip cover plate.

[0013] Optionally, a first card slot is provided in the middle of one side of the inner body of the pencil case, a first magnetic component is provided in the first card slot, a second card slot is provided at a corner of the first flip cover plate opposite to the first card slot, a second magnetic component attracted to the first magnetic component is provided in the second card slot, a third card slot is provided at a corner of the second flip cover plate opposite to the first card slot, and a third magnetic component attracted to the first magnetic component is provided in the third card slot.

[0014] Optionally, a first convex edge is provided on a side edge of the first flip cover plate, and the first convex edge is close to the second card slot; a second convex edge is provided on a side edge of the second flip cover plate, and the second convex edge is close to the third card slot.

[0015] Optionally, a connecting groove is provided on the outer side of the pencil case body, and sliding grooves are provided on both sides of the connecting groove along the height direction of the pencil case body, a connecting block is provided at one end of the clamp, and clamping strips are respectively provided vertically on two opposite sides of the connecting block, the connecting block is arranged in the connecting groove and clamped with each other, the top of the connecting block abuts against the top side in the connecting groove, and the clamping strips on both sides of the connecting block can be slidably arranged in the two sliding grooves.

[0016] Optionally, the clamping jaw includes a clamping groove and an adjusting screw, a screw hole is provided on one side of the clamping groove, one end of the adjusting screw passes through the screw hole and extends into the clamping groove, and the adjusting screw is threadedly connected to the screw hole.

[0017] In the technical solution of the utility model, when the hangable pencil case is in use, the pencil case body can be clamped and fixed on the side of the drawing board or a nearby supporting object by the clamping claws of the clamp, so that the hangable pencil case can be prevented from being stepped on and damaged; and the cover body adopted in the utility model comprises a first flip cover plate and a second flip cover plate, the first flip cover plate and the second flip cover plate are independent and can be opened separately, the traditional cover plate is a separate whole, and occupies a large space after opening, the first flip cover plate and the second flip cover plate in the utility model can be selectively opened, and the occupied space can be reduced, and when the clamping claws are clamped on the drawing board, the interference and inconvenience caused by the opened cover body to the art students when painting can be reduced by reducing the space occupied by the opened cover body; at the same time, one side of the pencil case body The pencil case body is provided with a first card slot and a first magnetic member, a second card slot and a second magnetic member are provided at a corner of the first flip plate opposite to the first card slot, the first flip plate can be attracted to the first magnetic member by the second magnetic member so as to be tightly covered on the top side of the pencil case body, a third card slot and a third magnetic member are provided at a corner of the second flip plate opposite to the first card slot, the second flip plate can be attracted to the first magnetic member by the third magnetic member so as to be tightly covered on the top side of the pencil case body, the first protrusion and the second protrusion on the pencil case body can prevent the first flip plate from shaking when it is opened, the third protrusion and the fourth protrusion can prevent the second flip plate from shaking when it is opened, and the first convex edge on the first flip plate facilitates the user to open the first flip plate with force of the finger, and the second convex edge on the second flip plate facilitates the user to open the second flip plate with force of the finger. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of a three-dimensional structure of a hanging pencil case provided by the utility model;

[0020] Figure 2 It is an exploded view of the pencil case body and the first magnetic member in the utility model;

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the pencil case body of the utility model;

[0022] Figure 4 It is an exploded view of the first flip cover plate and the second magnetic member in the utility model;

[0023] Figure 5 It is an exploded view of the second flip cover plate and the third magnetic member in the utility model;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure after the first flip cover plate and the second flip cover plate in the utility model are flipped open on the pencil case body;

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the clamp in the utility model.

[0026] Description of Figure Numbers:

[0027] Label name Label name 1 Pencil case 18 The fourth bulge 2 Cover 19 First card slot 3 Fixture 4 The first magnetic element 21 First flip cover 211 Second card slot 22 Second flip cover 5 The second magnetic member 11 First hinge seat 221 Third card slot 12 Second hinge seat 6 The third magnetic member 23 First shaft 212 First convex edge 24 Second shaft 222 Second convex edge 13 First elastic slot 20 Connection slot 131 First opening 201 Chute 14 Second elastic slot 31 Connection Block 141 Second opening 311 Card strip 15 The first bulge 32 Gripper 16 Second bulge 321 Clip slot 17 The third bulge 322 Adjusting screw

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in this embodiment to clearly and completely describe the technical solution in this embodiment. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, the technical solutions of the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0033] The utility model provides a hangable pencil case.

[0034] like Figures 1 to 7 As shown, the hangable pencil case of this embodiment includes a pencil case body 1, wherein the pencil case body 1 has a built-in accommodating cavity and an opening on the top side; a cover body 2, wherein the cover body 2 is flippably arranged on the pencil case body 1 and is used to cover the opening of the pencil case body 1; and a clamp 3, wherein one end of the clamp 3 is detachably connected to the pencil case body 1, and the other end of the clamp 3 is provided with a clamping claw 32.

[0035] In one embodiment, the pencil case body 1 is in a rectangular shape, with a housing cavity for accommodating sketch pens formed inside, and an opening on the top side. The four corners are rounded to avoid damage to the human body when bumped against; the cover body 2 is flippably arranged on the outside of the pencil case body 1, and one end of the cover body 2 can be manually moved to drive the cover body 2 to cover the opening of the pencil case body 1 or open the opening; the bottom end of the clamp 3 is detachably connected to the outside of the pencil case body 1 and fixed to each other, and a clamp claw 32 is provided at the top end of the clamp 3, and the clamp 3 can be clamped on a drawing board or a nearby support, such as a tree branch, etc. by the clamp claw 32; when the hangable pencil case in this embodiment is in use, the pencil case body 1 can be clamped and fixed on the side of the drawing board or a nearby support object by the clamp claw 32 of the clamp 3, thereby preventing the hangable pencil case from being stepped on and damaged.

[0036] Further, the cover body 2 includes a first flip cover plate 21 and a second flip cover plate 22, which are respectively flippably arranged on the outer sides of the left and right sides of the pencil case body 1 and are symmetrical to each other. The first flip cover plate 21 can be flipped to open in the left direction of the pencil case body 1, and the second flip cover plate 22 can be flipped to open in the right direction of the pencil case body 1. When the first flip cover plate 21 and the second flip cover plate 22 cover the top side of the pencil case body 1, there is a small gap between the two opposite sides of the first flip cover plate 21 and the second flip cover plate 22, for example, 1mm-2mm, and the first flip cover plate 21 The first flap plate 21 and the second flap plate 22 can be opened simultaneously or one of them can be opened separately. The cover body 2 used in this embodiment includes a first flap plate 21 and a second flap plate 22. The first flap plate 21 and the second flap plate 22 are independent and can be opened separately. The traditional cover plate is a separate whole and occupies a large space after opening. The first flap plate 21 and the second flap plate 22 in the utility model can be selectively opened to reduce the occupied space. When the clamping claw 32 is clamped on the drawing board, the space occupied by the cover body 2 after opening can be reduced, so the interference and inconvenience caused by the cover body 2 after opening to the art students when painting can be reduced.

[0037] Furthermore, four first hinge seats 11 and four second hinge seats 12 are respectively provided on the outer sides of the left and right sides of the pencil case body 1, and the first hinge seats 11 are opposite to the second hinge seats 12 one by one, two first rotating shafts 23 are provided on one side of the first flip plate 21, and the first flip plate 21 is hinged to the two first hinge seats 11 through a first rotating shaft 23, two second rotating shafts 24 are provided on one side of the second flip plate 22, and the second flip plate 22 is hinged to the two second hinge seats 12 through a second rotating shaft 24, the two first rotating shafts 23 on the first flip plate 21 are respectively close to the front and rear sides of the first flip plate 21, so that the first flip plate 21 is fixed to the pencil case body 1 and it is more stable when it is turned over, and the two second rotating shafts 24 on the second flip plate 22 are respectively close to the front and rear sides of the second flip plate 22, so that the second flip plate 22 is fixed to the pencil case body 1 and it is more stable when it is turned over.

[0038] Specifically, a first elastic slot 13 is provided at the top of the first hinge seat 11, and a first opening 131 is provided at the top side of the first elastic slot 13. The first rotating shaft 23 is set in the first elastic slot 13 by pressing and can rotate, and the diameter of the first opening 131 is smaller than the rod diameter of the first rotating shaft 23. Therefore, the first opening 131 plays a limiting and fixing role for the first rotating shaft 23, so as to prevent the first rotating shaft 23 from easily escaping from the first elastic slot 13. When it is necessary to remove the first flip cover 21 from the pencil case body 1, it is only necessary to forcefully pry the side of the first flip cover 21 to take the first rotating shaft 23 out of the first elastic slot 13. Through the cooperation of the first elastic slot 13, the first opening 131 and the first rotating shaft 23, it is convenient to remove and install the first flip cover 21 on the pencil case body 1. The second hinged seat 12 is provided with a second elastic slot 14 at the top end, and a second opening 141 is provided at the top side of the second elastic slot 14. The second rotating shaft 24 is set in the second elastic slot 14 by pressing and can rotate, and the diameter of the second opening 141 is smaller than the rod diameter of the second rotating shaft 24. Therefore, the second opening 141 plays a limiting and fixing role on the second rotating shaft 24, preventing the second rotating shaft 24 from easily escaping from the second elastic slot 14. When the second flip plate 22 needs to be removed from the pencil case body 1, it is only necessary to forcefully pry the side of the second flip plate 22 to take the second rotating shaft 24 out of the second elastic slot 14. Through the cooperation of the second elastic slot 14, the second opening 141 and the second rotating shaft 24, it is convenient to disassemble and install the second flip plate 22 on the pencil case body 1.

[0039] Specifically, the top end surfaces of the front side and the rear side of the pencil case body 1 are respectively provided with a first protrusion 15 and a second protrusion 16, the first protrusion 15 and the second protrusion 16 are arranged opposite to each other, the first protrusion 15 abuts against the inner side of the front side of the first flip cover plate 21, and the second protrusion 16 abuts against the inner side of the rear side of the first flip cover plate 21. The top end surfaces of the front side and the rear side of the pencil case body 1 are respectively provided with a third protrusion 17 and a fourth protrusion 18, the third protrusion 17 and the fourth protrusion 18 are arranged opposite to each other, the third protrusion 17 abuts against the inner side of the front side of the second flip cover plate 22, and the fourth protrusion 18 abuts against the inner side of the rear side of the second flip cover plate 22. Since the first rotating shaft 23 is movably arranged in the first elastic slot 13 and the second rotating shaft 24 is movably arranged in the second elastic slot 14, neither the first rotating shaft 23 nor the second rotating shaft 24 is fixed in the front-to-back direction. Therefore, in actual use, when the first flip cover 21 and the second flip cover 22 are opened, they will rock back and forth, which may easily damage the connection between the first rotating shaft 23 and the first elastic slot 13 and the connection between the second rotating shaft 24 and the second elastic slot 14. Therefore, the first protrusion 15 and the second protrusion 16 are used to limit the first flip cover 21 when it is opened, so as to prevent the first flip cover 21 from rocking back and forth and thus protect the connection between the first rotating shaft 23 and the first elastic slot 13. The third protrusion 17 and the fourth protrusion 18 are used to limit the second flip cover 22 when it is opened, so as to prevent the second flip cover 22 from rocking back and forth and thus protect the connection between the second rotating shaft 24 and the second elastic slot 14.

[0040] In one embodiment, a first card slot 19 is provided in the middle of the front side of the pencil case body 1, a first magnetic member 4 is fixedly provided in the first card slot 19, a second card slot 211 is provided at a corner of the first flip cover 21 opposite to the first card slot 19, a second magnetic member 5 attracted to the first magnetic member 4 is fixedly provided in the second card slot 211, a third card slot 221 is provided at a corner of the second flip cover 22 opposite to the first card slot 19, a magnetic member 5 attracted to the first magnetic member 4 is fixedly provided in the third card slot 221, The first flip cover 21 and the second flip cover 22 are respectively provided with a third magnetic member 6 and a third magnetic member 4 that are attracted to each other; specifically, the second card slot 211 corresponds to the left half of the first card slot 19, and the third card slot 221 corresponds to the right half of the first card slot 19. The first flip cover 21 can be attracted to the first magnetic member 4 through the second magnetic member 5 so as to be tightly covered on the top side of the pencil case body 1. The second flip cover 22 can be attracted to the first magnetic member 4 through the third magnetic member 6 so as to be tightly covered on the top side of the pencil case body 1. The first flip cover 21 and the second flip cover 22 are convenient and easy to open.

[0041] Optionally, the first flip cover 21 has a first convex edge 212 on its side, and the first convex edge 212 is close to the second slot 211; the second flip cover 22 has a second convex edge 222 on its side, and the second convex edge 222 is close to the third slot 221. The first convex edge 212 on the first flip cover 21 facilitates the user to open the first flip cover 21 with their fingers, and the second convex edge 222 on the second flip cover 22 facilitates the user to open the second flip cover 22 with their fingers.

[0042] Furthermore, a connecting groove 20 is provided on the outer side of the pencil case body 1, and slide grooves 201 are provided on both sides of the connecting groove 20 along the height direction of the pencil case body 1. A connecting block 31 is provided at the bottom end of the clamp 3, and clamping strips 311 are respectively provided vertically on two opposite sides of the connecting block 31. The connecting block 31 is arranged in the connecting groove 20 and clamped with each other. The top of the connecting block 31 abuts against the top side in the connecting groove 20, and the clamping strips 311 on both sides of the connecting block 31 can be slidably arranged in the two slide grooves 201. When the connecting block 31 is assembled with the connecting groove 20, the clamping strips 311 on both sides of the connecting block 31 can be aligned with the slide grooves 201 on both sides of the connecting groove 20, and then the connecting block 31 is pushed upward, and the two clamping strips 311 slide into the two slide grooves 201 respectively until the top side of the connecting block 31 abuts against the top side of the connecting groove 20 and stops sliding. At this time, the two slide grooves 201 abut against the two clamping strips 311 respectively, and the top side of the connecting block 31 supports the pencil case body 1, and the connecting block 31 is clamped with the pencil case body 1 through the cooperation of the clamping strips 311 and the slide groove 201; when it is necessary to separate the connecting block 31 from the pencil case body 1, it is only necessary to push the connecting block 31 downward along the height direction of the pencil case body 1 until the clamping strips 311 are separated from the slide groove 201 to complete the separation of the connecting block 31 from the pencil case body 1. The assembly method of the bottom end of the clamp 3 and the pencil case body 1 in this embodiment is simple, which is convenient for the disassembly and assembly of the two.

[0043] Specifically, the clamping jaw 32 includes a clamping groove 321 and an adjusting screw 322. The interior of the clamping groove 321 is in a rectangular shape and is suitable for clamping on a rectangular object, such as the side of a drawing board. A screw hole (not shown) is provided on one side of the clamping groove 321. One end of the adjusting screw 322 passes through the screw hole and extends into the clamping groove 321. The end extending into the clamping groove 321 is used to lock the clamping groove 321 with the clamped object, thereby fixing the clamping groove 321. The adjusting screw 322 is threadedly connected to the screw hole. The adjusting screw 322 can be rotated to adjust the length of the end extending into the clamping groove 321. Figure 7As shown, at this time, the extension length of the adjusting screw 322 has reached the limit. In this embodiment, two adjusting screws 322 are provided on the clamping groove 321, but it is not limited to only two adjusting screws 322. The more adjusting screws 322 are provided, the stronger the stability of the clamping jaw 32 is, but the cost is higher. Therefore, the number of adjusting screws 322 can be adjusted according to needs.

[0044] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A hangable pencil case, characterized in that: The hangable pencil case comprises: A pencil case body, wherein the pencil case body has a built-in accommodating cavity and an opening on the top side; A cover body, which is flippably arranged on the pencil case body and is used to cover the opening of the pencil case body; A clamp, one end of which is detachably connected to the pencil case body, and the other end of which is provided with a clamping claw.

2. The pencil case according to claim 1, characterized in that: The cover body comprises a first flip cover plate and a second flip cover plate, and the first flip cover plate and the second flip cover plate are respectively arranged on the outer sides of two opposite sides of the pencil case body in a flip manner and are symmetrical to each other.

3. The pencil case according to claim 2, characterized in that: A first hinge seat and a second hinge seat are respectively provided on the outer sides of two opposite sides of the pencil case body, a first rotating shaft is provided on one side of the first flip plate, and the first flip plate is hinged to the first hinge seat through the first rotating shaft, a second rotating shaft is provided on one side of the second flip plate, and the second flip plate is hinged to the second hinge seat through the second rotating shaft.

4. The pencil case according to claim 3, characterized in that: The first hinged seat is provided with a first elastic slot, the top side of the first elastic slot is provided with a first opening, the first rotating shaft is rotatably arranged in the first elastic slot, and the diameter of the first opening is smaller than the rod diameter of the first rotating shaft; the second hinged seat is provided with a second elastic slot, the top side of the second elastic slot is provided with a second opening, the second rotating shaft is rotatably arranged in the second elastic slot, and the diameter of the second opening is smaller than the rod diameter of the second rotating shaft.

5. The pencil case according to claim 4, characterized in that: The top end surfaces of the front side and the rear side of the pencil case body are respectively provided with a first protrusion and a second protrusion, the first protrusion abuts against the inner side of the front side of the first flip cover plate, and the second protrusion abuts against the inner side of the rear side of the first flip cover plate.

6. The pencil case as claimed in claim 4, characterized in that: The top end surfaces of the front side and the rear side of the pencil case body are respectively provided with a third protrusion and a fourth protrusion, the third protrusion abuts against the inner side of the front side of the second flip cover plate, and the fourth protrusion abuts against the inner side of the rear side of the second flip cover plate.

7. The pencil case according to claim 3, characterized in that: A first card slot is provided in the middle of one side of the pencil case body, a first magnetic component is provided in the first card slot, a second card slot is provided at a corner of the first flip cover plate opposite to the first card slot, a second magnetic component attracted to the first magnetic component is provided in the second card slot, a third card slot is provided at a corner of the second flip cover plate opposite to the first card slot, a third magnetic component attracted to the first magnetic component is provided in the third card slot.

8. The pencil case according to claim 7, characterized in that: A first convex edge is provided on the side of the first flip cover plate, and the first convex edge is close to the second card slot; a second convex edge is provided on the side of the second flip cover plate, and the second convex edge is close to the third card slot.

9. The pencil case according to claim 1, characterized in that: A connecting groove is provided on the outer side of the pencil case body, and sliding grooves are provided on both sides of the connecting groove along the height direction of the pencil case body. A connecting block is provided at one end of the clamp, and clamping strips are respectively provided vertically on two opposite sides of the connecting block. The connecting block is arranged in the connecting groove and clamped with each other, and the top of the connecting block abuts against the top side in the connecting groove, and the clamping strips on both sides of the connecting block can be slidably arranged in the two sliding grooves.

10. The pencil case according to claim 9, characterized in that: The clamping jaw comprises a clamping groove and an adjusting screw, a screw hole is arranged on one side of the clamping groove, one end of the adjusting screw passes through the screw hole and extends into the clamping groove, and the adjusting screw is threadedly connected with the screw hole.

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