CN112141521A

CN112141521A - Detachable cosmetic box

Info

Publication number: CN112141521A
Application number: CN202011057810.2A
Authority: CN
Inventors: 张伟达
Original assignee: Shyahsin Packaging China Co Ltd
Current assignee: Shyahsin Packaging China Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2020-12-29
Also published as: JP3243802U; WO2022068296A1; KR20230000616U

Abstract

The invention relates to a detachable cosmetic box which comprises a top plate, an outer cover, an inner cover, a button, an elastic gasket and a box body, wherein the top plate, the outer cover, the inner cover, the button, the elastic gasket and the box body are coaxially arranged, the inner cover is arranged on the inner side of the outer cover, a buckle is arranged on the inner cover, an elastic clamping rib is arranged on the top plate, a pressing part is arranged on the button, an accommodating groove is arranged on the outer cover, the lower end of the top plate is inserted into the accommodating groove and extends into the inner cover, the elastic clamping rib of the top plate is clamped on the buckle on the inner cover to fix the outer cover and the inner cover, the button is arranged in the inner cover, the pressing part and the elastic clamping rib are mutually attached, the elastic gasket is arranged in the inner cover, the inner. The invention has novel structure, convenient use, high practicability and environmental protection.

Description

Detachable cosmetic box

Technical Field

The invention relates to a cosmetic box, in particular to a detachable cosmetic box.

Background

A cosmetic case is widely used for packing cosmetic materials, and generally, the cosmetic case is composed of a case cover and a case body, wherein the case cover is formed by combining an inner cover and an outer cover. At present inner cup and enclosing cover adopt the equipment mode of rubberizing or buckle, just can't dismantle after the equipment, consequently to inner cup and the enclosing cover that adopts different materials to make, can't classify recycle, increased the burden of environmental protection.

Disclosure of Invention

In order to overcome the defects, the invention provides a detachable cosmetic box, wherein an inner cover and an outer cover in the cosmetic box are detachably combined, and the inner cover and the outer cover can be separated after use to be classified and recycled, so that the cosmetic box meets the requirement of environmental protection.

The technical scheme adopted by the invention for solving the technical problem is as follows:

the utility model provides a detachable makeup box, includes top plate, enclosing cover, inner cup, button, elastic gasket and the box body of coaxial setting, the inner cup is installed in the inboard of enclosing cover, interior cover is equipped with the buckle, be equipped with the elasticity card muscle on the top plate, be equipped with on the button and press the splenium, be equipped with the storage tank on the enclosing cover, the lower extreme of top plate inserts this storage tank and stretches into in the inner cup, just the elasticity card muscle block of top plate in interior epaxial buckle of covering is fixed with enclosing cover and inner cup, the button is installed in the inner cup and is pressed the splenium and laminate with the elasticity card muscle each other, elastic gasket arranges in the inner cup, inner cup detachably lid fits the box body, during the dismantlement, presses the button, and the splenium extrusion of pressing of button elasticity card muscle on.

Preferably, the inner surface of the top plate extends downwards to form a circle of first combining portion, a plurality of elastic clamping ribs extending downwards are arranged on the top plate on the inner side of the first combining portion, a first inclined plane and a first stop surface are arranged on the elastic clamping ribs, and the first combining portion is just tightly inserted into the accommodating groove of the outer cover.

Preferably, the top plate is of a circular structure, the first combining part and the top plate are coaxially arranged, four elastic clamping ribs uniformly arranged along the central axis of the top plate are arranged on the inner surface of the top plate, the four elastic clamping ribs are positioned on the same circumference, the first inclined plane is positioned at the lower ends of the elastic clamping ribs, and the first stop surface is a plane parallel to the top plate.

Preferably, the outer cover includes a top surface and a peripheral wall extending downward around the top surface, the top surface is provided with a receiving groove coaxial with the top surface, the receiving groove extends downward along an inner wall thereof to form a first connecting portion, and the first connecting portion extends inward along a radial direction thereof to form a circle of boss.

Preferably, the inner cover is provided with an outer cylinder and an inner cylinder which are arranged in parallel, the lower ends of the outer cylinder and the inner cylinder are connected, the upper ends of the outer cylinder and the inner cylinder are separated, the inner wall of the inner cylinder radially extends inwards to form a circle of base plate, the central part of the base plate is provided with a first through hole, the inner wall of the first through hole extends upwards to form a circle of second connecting part, the upper end of the second connecting part radially extends inwards to form a circle of top plate, the central part of the top plate is provided with a second through hole, the inner wall of the second through hole extends upwards to form a circle of inner ring, and.

Preferably, the urceolus is inside hollow cuboid structure, the inner tube is inside hollow cylinder structure, be equipped with a plurality of bellied projections upwards on the chassis, upwards extend on the top dish in the inner circle outside and form the outer lane, the lower extreme inner wall of inner tube is equipped with the internal thread, be equipped with second inclined plane and second backstop face on the buckle.

Preferably, the elastic clamping rib of the top plate is inserted into the inner ring and is stopped by the second stopping surface, the pressing part of the button is inserted into a gap between the elastic clamping rib and the inner ring, and the elastic gasket is arranged on the lower surface of the chassis and below the button.

Preferably, the upper end of the box body is a second combining part, and the inner side wall of the second combining part is provided with an external thread matched with the internal thread of the inner cylinder.

Preferably, the upper surface of button upwards extends and forms the round and presses the portion, it is the third inclined plane to press the portion inside wall, the third inclined plane laminating in elasticity card muscle.

The invention has the beneficial effects that: the elastic clamping device comprises a top plate, an outer cover, an inner cover, a button, an elastic gasket and a box body which are coaxially arranged, wherein the inner cover is arranged in the outer cover, the top plate is inserted into the inner cover from an accommodating groove of the outer cover, and the elastic clamping rib is mutually clamped with a buckle, so that the outer cover and the inner cover are fixedly connected by the top plate, the button is arranged in the inner cover from the lower part of the inner cover, a pressing part of the button is mutually attached with the elastic clamping rib, the elastic gasket is arranged in the inner cover below the button to shield the button, when the button needs to be disassembled, the button is pressed from the outer side of the elastic gasket, the pressing part of the button extrudes the elastic clamping rib to deform inwards, so that the elastic clamping. The inner cover and the outer cover are fixed through the top plate, and the top plate can be detached through the button, so that the cosmetic box can sort and recycle the inner cover and the outer cover which are made of different materials, and is convenient and environment-friendly.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of a topsheet in the present invention;

FIG. 3 is a schematic view of the structure of the top sheet of the present invention;

FIG. 4 is a sectional view of the outer cap of the present invention;

FIG. 5 is a schematic structural view of the outer cover of the present invention;

FIG. 6 is a cross-sectional view of the inner lid of the present invention;

FIG. 7 is a schematic view of the structure of the inner lid of the present invention;

FIG. 8 is a cross-sectional view of the push button of the present invention;

FIG. 9 is a schematic view of the structure of the push button of the present invention;

FIG. 10 is a cross-sectional view of the elastomeric gasket of the present invention;

FIG. 11 is a schematic view of the structure of the elastic pad of the present invention;

FIG. 12 is a cross-sectional view of the cartridge of the present invention;

FIG. 13 is a schematic structural view of the cartridge of the present invention;

FIG. 14 is a flow chart illustrating the assembly of the lid assembly of the present invention;

FIG. 15 is a flow chart illustrating the disassembly of the lid assembly of the present invention;

in the figure: 10-a top plate, 11-a first combining part, 12-an elastic clamping rib, 13-a first inclined plane, 14-a first stop plane, 20-an outer cover, 21-a top plane, 22-a peripheral wall, 23-an accommodating groove, 24-a first connecting part, 25-a boss, 30-an inner cover, 31-an outer cylinder, 32-an inner cylinder, 33-a convex column, 34-a bottom disc, 35-a second connecting part, 36-a top disc, 37-an inner ring, 38-a buckle, 39-a second inclined plane, 41-a second stop plane, 42-an outer ring, 43-an inner thread, 50-a button, 51-a pressing part, 52-a third inclined plane, 60-an elastic gasket, 70-a box body, 71-a second combining part and 72-an outer thread.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. 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.

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, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

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.

Example (b): as shown in fig. 1-13, a detachable cosmetic container comprises a top plate 10, an outer cover 20, an inner cover 30, a button 50, an elastic pad 60 and a container body 70, which are coaxially disposed, wherein the inner cover 30 is installed on the inner side of the outer cover 20, the inner cover 30 is provided with a buckle 38, the top plate 10 is provided with an elastic clamping rib 12, the button 50 is provided with a pressing portion 51, the outer cover 20 is provided with a containing groove 23, the lower end of the top plate 10 is inserted into the containing groove 23 and extends into the inner cover 30, the elastic clamping rib 12 of the top plate 10 is clamped with the buckle 38 on the inner cover to fix the outer cover 20 and the inner cover 30, the button 50 is installed in the inner cover 30, the pressing portion 51 is mutually jointed with the elastic clamping rib 12, the elastic pad 60 is arranged in the inner cover 30, the inner cover 30 is detachably covered on the container body 70, when being detached, the button 50 is, so that the elastic clamping ribs 12 are separated from the clamping buckles 38 on the inner cover, and the inner cover is further detached from the outer cover. In the invention, the outer cover 20 and the inner cover 30 are assembled into a cover assembly, the inner cover 30 is arranged in the outer cover 20, the top plate 10 is inserted into the inner cover 30 from the containing groove 23 of the outer cover 20, the elastic clamping ribs 12 are clamped with the buckles 38, the upper end of the top plate 10 is pressed on the upper surface of the outer cover 20, therefore, the outer cover 20 and the inner cover 30 are fixedly connected by the top plate 10, the button 50 is arranged in the inner cover from the lower part of the inner cover, the pressing part 51 of the button is attached to the elastic clamping ribs 12, the elastic gasket 60 is arranged in the inner cover 30 below the button to shield the button, when the cover assembly is covered on the box body 70, the inner cover is screwed or clamped with the box body, the elastic spring sheet 60 just seals the upper end opening of the box body 70 to improve the sealing performance of the cosmetic box, when the button 50 is required to be disassembled, the pressing part 51 of the button, i.e., the top sheet is detached from the inner lid, so that the outer lid and the inner lid can be separated. The inner cover and the outer cover are fixed through the top plate, and the top plate can be detached through the button, so that the cosmetic box can sort and recycle the inner cover and the outer cover which are made of different materials, and is convenient and environment-friendly.

As shown in fig. 2 and 3, the inner surface of the top sheet 10 extends downward to form a circle of first combining portion 11, a plurality of elastic clamping ribs 12 extending downward are arranged on the top sheet at the inner side of the first combining portion 11, a first inclined surface 13 and a first stop surface 14 are arranged on the elastic clamping ribs 12, and the first combining portion 11 is just inserted into the accommodating groove 23 of the outer cover. The top plate 10 is of a circular structure, the first combining part 11 and the top plate 10 are coaxially arranged, four elastic clamping ribs 12 evenly arranged along the central axis of the top plate are arranged on the inner surface of the top plate 10, the four elastic clamping ribs 12 are positioned on the same circumference, the first inclined surface 13 is positioned at the lower end of the elastic clamping ribs 12, and the first stop surface 14 is a plane parallel to the top plate 10. When the first combining part 11 of the top sheet 10 is inserted into the receiving groove 23 of the outer cover, the lower surface of the top sheet outside the first combining part is attached to the top surface 21 of the outer cover, and the elastic clamping rib at the lower end of the top sheet is mutually clamped with the clamping buckle 38 of the inner cover, so that the outer cover 20 and the inner cover 30 are fixed together.

As shown in fig. 4 and 5, the outer cover 20 includes a top surface 21 and a peripheral wall 22 extending downward along the periphery of the top surface, the top surface 21 is provided with a receiving groove 23 coaxial with the top surface, the receiving groove 23 extends downward along the inner wall thereof to form a first connecting portion 24, and the first connecting portion 24 extends inward along the radial direction thereof to form a ring of bosses 25. In this embodiment, the outer cover 20 is a rectangular parallelepiped structure with a hollow interior, and the receiving groove 23 is a circular structure.

As shown in fig. 6 and 7, the inner cover 30 is provided with an outer cylinder 31 and an inner cylinder 32 which are arranged in parallel, the lower ends of the outer cylinder 31 and the inner cylinder 32 are connected, and the upper ends of the outer cylinder 31 and the inner cylinder 32 are separated, the inner wall of the inner cylinder 32 extends radially inward to form a circle of base plate 34, the central part of the base plate 34 is provided with a first through hole, the inner wall of the first through hole extends upward to form a circle of second connecting part 35, the upper end of the second connecting part 35 extends radially inward to form a circle of top plate 36, the central part of the top plate 36 is provided with a second through hole, the inner wall of the second through hole extends upward to form a circle of inner ring. The inner cylinder 32 is located inside the outer cylinder 31, and a certain gap is formed between the inner cylinder and the outer cylinder, when the outer cover 20 is sleeved on the inner cover 30, the peripheral wall 22 of the outer cover is just attached to the outer cylinder 31 of the inner cover, and a gap is formed between the outer cylinder and the inner cylinder, so that the outer cylinder has certain elasticity, and the outer cover and the inner cover can be assembled and disassembled conveniently.

The outer tube 31 is inside hollow cuboid structure, the inner tube 32 is inside hollow cylinder structure, be equipped with a plurality of bellied projections 33 that make progress on the chassis 34, upwards extend on the top dish 36 in the inner circle 37 outside and form outer lane 42, the lower extreme inner wall of inner tube 32 is equipped with internal thread 43, be equipped with second inclined plane 39 and second backstop face 41 on the buckle 38. The plurality of convex columns 33 are uniformly distributed along the central axis of the inner cover 30, the base plate 34 is positioned below the top plate 36, the base plate and the top plate are arranged in the horizontal direction and are parallel to each other, and the inner cylinder 32, the second connecting part 35, the inner ring 37 and the outer ring 42 are arranged in the vertical direction and are parallel to each other.

The elastic clamping rib 12 of the top plate 10 is inserted into the inner ring 37, the elastic clamping rib 12 is stopped by the second stopping surface 41, the pressing part 51 of the button 50 is inserted into a gap between the elastic clamping rib 12 and the inner ring 37, and the elastic gasket 60 is installed on the lower surface of the bottom plate 34 and below the button 50. During assembly, the boss 25 of the outer cover is arranged on the top disc 36 of the inner cover, the boss abuts against the outer ring 42 of the inner cover, the buckle 38 of the inner cover extends into the containing groove 23 of the outer cover, the elastic clamping rib 12 slides down along the second inclined surface 39 of the buckle until the first inclined surface 13 slides into the lower part of the second inclined surface 39, the first stop surface 14 and the second stop surface 41 are clamped with each other, the inner cover 30 and the outer cover 40 are limited with each other, and the two can not be separated from each other.

As shown in fig. 12 and 13, the upper end of the box 70 is a second coupling portion 71, and the inner sidewall of the second coupling portion 71 is provided with an external thread 72 that is engaged with the internal thread 43 of the inner cylinder 32. Locate the second joint part 71 of box body with inner cup 30 cover, just it is fixed through inside and outside screw thread spiro union between box body 70 and the inner cup 30, certainly can adopt other modes fixed connection such as block, in this embodiment, box body 70 is the cuboid structure of upper end opening end, second joint part 71 is hollow cylinder structure, sees only enclosing cover 20 and box body 70 from the outside, and the box of making up is whole to be square structure.

As shown in fig. 8 and 9, a pressing portion 51 extends upward from the upper surface of the button 50, the inner sidewall of the pressing portion 51 is a third inclined surface 52, and the third inclined surface 52 is attached to the elastic rib 12. The button 50 is a disc-shaped structure, the pressing portion 51 is hollow, as shown in fig. 8, the third inclined surface 52 of the pressing portion forms an included angle of more than 90 degrees with the horizontal plane, when being installed, the button 50 is placed in the first through hole of the chassis 34 and the pressing part 51 is inserted into the gap between the elastic clamping rib 12 and the inner ring 37, the third inclined surface 52 is attached to the first inclined surface 13 on the elastic clamping rib, the inclination of the first inclined surface is the same as that of the third inclined surface, the elastic pad 60 is attached to the lower surface of the button, and by pressing the elastic pad 60, the button moves upward under the pressing force, the first inclined surface 13 is deformed by the third inclined surface 52 to contract inward, so that the first stop surface 14 of the elastic clamping rib 12 is separated from the second stop surface 41 of the buckle, that is, the top sheet 10 is separated from the inner cover 30, and the outer cover 20 and the inner cover 30 are separated from each other, and can be classified and recycled.

The operation process of the invention is as follows:

assembling and disassembling processes: as shown in fig. 14 and 15, the horizontal arrows in the figure indicate the flow direction of the operation process, and the upward arrows in fig. 15 indicate the pressing direction of the button, and the steps are as follows:

the method comprises the following steps: the top sheet 10 is arranged in the outer cover 20, the first combining part 11 is inserted into the containing groove 23 of the outer cover, and the lower surface of the top sheet is attached to the upper surface of the top surface of the outer cover;

step two: sleeving the outer cover 20 on the inner cover 30, placing the boss 25 of the outer cover on the top disc 36 of the inner cover, enabling the boss to abut against the outer ring 42 of the inner cover, enabling the elastic clamping rib 12 of the top plate to slide down along the second inclined plane 39 of the buckle of the inner cover until the first inclined plane 13 slides into the lower part of the second inclined plane 39, and enabling the first stop surface 14 and the second stop surface 41 to be clamped with each other, so that the inner cover 30 and the outer cover 40 are fixed together;

step three: the button 50 is arranged in the inner cover 30, the button 50 is arranged in the first through hole of the chassis 34, the pressing part 51 is inserted into the gap between the elastic clamping rib 12 and the inner ring 37, and the third inclined surface 52 is attached to the first inclined surface 13 on the elastic clamping rib;

step four: installing an elastic pad 60 into the inner cap 30, the elastic pad 60 being attached to the lower surface of the button, completing the assembly of the cap assembly;

step five: the cover assembly is covered on the box body 70, the inner cover 30 is sleeved on the second combining part 71 of the box body, the inner cover 30 is screwed on the box body 70, and the elastic gasket 60 is sealed at the opening end of the box body 70;

step six: when the cover assembly needs to be disassembled, the cover assembly is screwed out of the box body 70, and then the button 50 inside the cover assembly moves upwards under the action of the pressing force by pressing the elastic gasket 60, so that the first inclined surface 13 is shrunk and deformed inwards under the action of the third inclined surface 52, the first stop surface 14 of the elastic clamping rib 12 is separated from the second stop surface 41 of the buckle, namely, the top plate 10 is separated from the inner cover 30, and the outer cover 20 and the inner cover 30 are automatically separated.

It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A detachable makeup box is characterized in that: including top plate (10), enclosing cover (20), inner cup (30), button (50), elastic gasket (60) and box body (70) of coaxial setting, install in the inboard of enclosing cover (20) inner cup (30), be equipped with buckle (38) on inner cup (30), be equipped with elastic clamping rib (12) on top plate (10), be equipped with on button (50) and press splenium (51), be equipped with storage tank (23) on enclosing cover (20), the lower extreme of top plate (10) inserts this storage tank (23) and stretches into in inner cup (30), just elastic clamping rib (12) the block of top plate (10) is in buckle (38) on the inner cup and fix enclosing cover (20) and inner cup (30), button (50) are installed in inner cup (30) and press splenium (51) and elastic clamping rib (12) to laminate each other, elastic gasket (60) are arranged in enclosing cover (30), the inner cover (30) is detachably covered on the box body (70), when the box body is detached, the button (50) is pressed, the pressing part (51) of the button extrudes the elastic clamping rib (12) on the top plate, and the elastic clamping rib (12) is separated from the buckle (38) on the inner cover.

2. The removable cosmetic case of claim 1, wherein: the inner surface of the top plate (10) extends downwards to form a circle of first combination portion (11), a plurality of elastic clamping ribs (12) extending downwards are arranged on the top plate on the inner side of the first combination portion (11), a first inclined surface (13) and a first stop surface (14) are arranged on the elastic clamping ribs (12), and the first combination portion (11) is just inserted and tightly connected into the accommodating groove (23) of the outer cover.

3. The removable cosmetic case of claim 2, wherein: the top plate (10) is of a circular structure, the first combining part (11) and the top plate (10) are coaxially arranged, four elastic clamping ribs (12) evenly arranged along the central axis of the top plate are arranged on the inner surface of the top plate (10), the four elastic clamping ribs (12) are located on the same circumference, the first inclined plane (13) is located at the lower end of each elastic clamping rib (12), and the first stop surface (14) is a plane parallel to the top plate (10).

4. The removable cosmetic case of claim 1, wherein: the outer cover (20) comprises a top surface (21) and a peripheral wall (22) formed by extending downwards along the periphery of the top surface, a containing groove (23) coaxial with the top surface is formed in the top surface (21), the containing groove (23) extends downwards along the inner wall of the containing groove to form a first connecting portion (24), and the first connecting portion (24) extends inwards along the radial direction to form a circle of boss (25).

5. The removable cosmetic case of claim 1, wherein: be equipped with parallel arrangement's urceolus (31) and inner tube (32) on inner cup (30), urceolus (31) and inner tube (32) lower extreme are connected and the upper end separates, the inner wall radial inward extension of inner tube (32) forms round chassis (34), the central point on chassis (34) is equipped with first through-hole, and this first through-hole inner wall upwards extends and forms round second connecting portion (35), the upper end radial inward extension of second connecting portion (35) forms round top dish (36), the central point of top dish (36) is equipped with the second through-hole, and this second through-hole inner wall upwards extends and forms round inner circle (37), be equipped with buckle (38) on the inner wall of inner circle (37).

6. The removable cosmetic case of claim 5, wherein: urceolus (31) are inside hollow cuboid structure, inner tube (32) are inside hollow cylinder structure, be equipped with a plurality of bellied projection (33) that make progress on chassis (34), upwards extend on top dish (36) in inner circle (37) outside and form outer lane (42), the lower extreme inner wall of inner tube (32) is equipped with internal thread (43), be equipped with second inclined plane (39) and second backstop face (41) on buckle (38).

7. The removable cosmetic case of claim 6, wherein: elastic clamping ribs (12) of the top plate (10) are inserted into the inner ring (37), the elastic clamping ribs (12) are stopped by the second stop face (41), pressing portions (51) of the buttons (50) are inserted into gaps between the elastic clamping ribs (12) and the inner ring (37), and elastic gaskets (60) are installed on the lower surface of the bottom plate (34) and located below the buttons (50).

8. The removable cosmetic case of claim 6, wherein: the upper end of the box body (70) is a second combining part (71), and the inner side wall of the second combining part (71) is provided with an external thread (72) which is matched with the internal thread (43) of the inner cylinder (32).

9. The removable cosmetic case of claim 1, wherein: the upper surface of the button (50) extends upwards to form a circle of pressing parts (51), the inner side wall of each pressing part (51) is a third inclined surface (52), and the third inclined surfaces (52) are attached to the elastic clamping ribs (12).