CN214340550U

CN214340550U - Intelligent wearable device

Info

Publication number: CN214340550U
Application number: CN202022921431.5U
Authority: CN
Inventors: 陈玉稳
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-10-08
Anticipated expiration: 2030-12-08

Abstract

The application discloses intelligence wearing equipment belongs to the electronic equipment field. The intelligent wearable device is characterized by comprising a device main body, a fixing belt and a clamping needle; the equipment main body comprises a first side wall, a second side wall, a third side wall and a fourth side wall, wherein the first side wall and the second side wall are provided with accommodating grooves, two ends of the bottom of each accommodating groove are provided with a jack, and an included angle formed by the length direction of each jack and the surface of the bottom of each accommodating groove is an acute angle; the tip at the fixed band is fixed to the first end of card needle, and the second end of card needle is pegged graft in the jack, and the end fixing of fixed band is in the holding tank, and wherein, the length direction of two card needles of joint in same holding tank is crossing. Like this, the jack can not extend to the middle part of equipment principal, because the card needle is slim and long type, therefore the shared volume of jack is less for the installation space of equipment principal that the jack occupy is also less, and then has saved installation space for the installation of other on the equipment principal.

Description

Intelligent wearable device

Technical Field

This application belongs to the electronic equipment field, concretely relates to intelligence wearing equipment.

Background

Along with the continuous development of intelligent wearing equipment, intelligent wearing equipment has occupied more and more consumer market. The appearance of the intelligent wearable device is one of the most important indexes influencing the sales volume of the intelligent wearable device, and taking the intelligent watch as an example, the appearance of the intelligent watch with a square lead angle is a popular appearance of the intelligent watch.

At present, intelligent wrist-watch includes dial plate and watchband usually, can dismantle the connection between dial plate and the watchband, and the appearance of intelligent wrist-watch is being influenced to the connected mode between dial plate and the watchband. The dial and the band are usually connected by means of a snap-fit. Illustratively, the end of watchband leads to and is provided with two joint posts, is provided with the joint groove in the relevant position of dial plate, realizes the connection of dial plate and watchband through the joint in joint post and joint groove.

However, in the process of implementing the present application, the inventors found that at least the following problems exist in the prior art: after the clamping head is clamped with the clamping groove of the dial plate, the clamping head extends into the dial plate, and the clamping head has larger volume and the clamping groove to be formed has larger volume, so that the clamping head occupies the installation space of other parts in the dial plate, and inconvenience is caused for the installation of other parts in the dial plate.

SUMMERY OF THE UTILITY MODEL

The purpose of the embodiment of the application is to provide an intelligent wearing equipment, can solve intelligent wearing equipment joint and crowd the problem of occupying the installation space of equipment main part.

In order to solve the technical problem, the present application is implemented as follows:

the embodiment of the application provides intelligent wearable equipment, which comprises an equipment main body, a fixing belt and a clamping needle;

the equipment main body comprises a first side wall, a second side wall, a third side wall and a fourth side wall, wherein the plane where the first side wall is located is parallel to the plane where the second side wall is located, the plane where the first side wall is located is respectively intersected with the plane where the third side wall is located and the plane where the fourth side wall is located, the plane where the third side wall is located is parallel to the plane where the fourth side wall is located, and the plane where the second side wall is located is respectively intersected with the plane where the third side wall is located and the plane where the fourth side wall is located;

the first side wall and the second side wall are provided with accommodating grooves, two ends of the groove bottom of each accommodating groove are provided with a jack, and an included angle between the length direction of each jack and the surface of the groove bottom of each accommodating groove is an acute angle;

the first end of the clamping needle is fixed at the end part of the fixing band, the second end of the clamping needle is inserted into the jack, the end part of the fixing band is fixed in the accommodating groove, and the length directions of the two clamping needles which are clamped in the same accommodating groove are intersected.

It can be seen from the above-mentioned embodiment that, in this application embodiment, after the jack that the card needle was pegged graft and is shot in the holding tank, because the length direction of two card needles of joint in same holding tank is crossing, consequently make the slope of card needle insert every card needle in the jack and all receive the traction force of another card needle for the jack is hugged closely to the surface of card needle, and then makes the fixed band joint on equipment main part. Like this, because through card needle and jack connection between the equipment main part that this application embodiment provided and the fixed band, the holding tank has been seted up to first lateral wall and second lateral wall, a jack has all been seted up at the both ends of the tank bottom of every holding tank, the length direction of jack and the contained angle between the surface at the tank bottom place of holding tank are the acute angle, consequently, get the jack and can not extend to the middle part of equipment main part, because the card needle is slenderness type, consequently, the shared volume of jack is less, make the equipment main part's that the jack occupy installation space also less, and then for the installation of other spare has saved installation space on the equipment main part.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an intelligent wearable device provided in the present application;

fig. 2 is an assembly schematic diagram of the smart wearable device provided herein;

FIG. 3 is a schematic structural diagram of a device body provided herein;

FIG. 4 is a schematic structural view of a latch provided herein;

FIG. 5 is a schematic view of the assembly of the clip and the retention strap provided by the present application;

fig. 6 is a partial schematic view of the apparatus body provided in the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.

The terms first, second and the like in the description and in the claims of the present application 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 are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The wearable device provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof. Fig. 1 is a schematic structural diagram of a smart wearable device provided in the present application, and fig. 2 is a schematic assembly diagram of the smart wearable device provided in the present application, as shown in fig. 1 and fig. 2, the smart wearable device includes a device main body 1, a fixing band 2, and a card needle 3; as shown in fig. 3, the apparatus main body 1 includes a first side wall, a second side wall, a third side wall and a fourth side wall, wherein a plane where the first side wall is located and a plane where the second side wall is located are parallel, the plane where the first side wall is located is respectively intersected with the plane where the third side wall is located and the plane where the fourth side wall is located, the plane where the third side wall is located is parallel to the plane where the fourth side wall is located, and the plane where the second side wall is located is respectively intersected with the plane where the third side wall is located and the plane where the fourth side wall is located; the first side wall and the second side wall are provided with accommodating grooves 12, two ends of the groove bottom of each accommodating groove 12 are provided with a jack 11, and an included angle between the length direction of each jack 11 and the surface of the groove bottom of each accommodating groove 12 is an acute angle; the tip at fixed band 2 is fixed to the first end of card needle 3, and the second end of card needle 3 is pegged graft in jack 11, and the end fixing of fixed band 2 is in holding tank 12, and wherein, the length direction of two card needles 3 of joint 12 in same holding tank is crossing.

The apparatus body 1 may include a housing, a circuit board, a display screen, and the like. The shell is usually made of hard plastics or aluminum alloy materials and the like, so that the shell has certain strength and plasticity, and further the shell can play a certain protection role on devices installed in the internal cavity. Secondly, the display screen that equipment main part 1 includes can be flexible electronic paper display screen, also can be liquid crystal display, or the display screen of other materials to make the display screen have characteristics such as light in weight, sealing performance are good, flexible, and the specific type of display screen is confirmed according to the performance of product, and this application embodiment does not limit this. The circuit board can be one kind of flexible circuit board to the inside complicated installation environment of adaptation casing, and then can be connected with other electron device electricity of intelligent wearing equipment through the circuit board.

It should be noted that, in this embodiment of the application, the apparatus main body 1 may include a first side wall, a second side wall, a third side wall, and a fourth side wall, a plane where the first side wall is located and a plane where the second side wall is located are parallel, a plane where the first side wall is located is respectively intersected with a plane where the third side wall is located and a plane where the fourth side wall is located, a plane where the third side wall is located is parallel to a plane where the fourth side wall is located, and a plane where the second side wall is located is respectively intersected with a plane where the third side wall is located and a plane where the fourth side wall is located. In addition, the device body includes opposing top and bottom surfaces. Generally, the top surface of the apparatus body 1 is a display screen, and the bottom surface is a rear cover of the apparatus body 1. And functional parts such as buttons, volume adjusting buttons and the like are arranged on the first side wall, the second side wall, the third side wall and the fourth side wall. The connecting part of the first side wall and the third side wall, the connecting part of the first side wall and the fourth side wall, the connecting part of the second side wall and the third side wall and the connecting part of the second side wall and the fourth side wall are provided with the arc angle 13, so that the transition of corners of the device main body 1 is simplified, and the surface consistency and the attractiveness of the device main body 1 are improved.

As shown in fig. 3, the first side wall and the second side wall are provided with accommodating grooves 12, two ends of the groove bottom of each accommodating groove 12 are provided with a jack 11, and under the condition that the clamping pin 3 is inserted into the jack 11, the end of the fixing band 2 is fixed in the accommodating groove 12, wherein an included angle between the length direction of the jack 11 and the surface where the groove bottom of the accommodating groove 12 is located is an acute angle. Specifically, the receiving groove 12 may be a bar-shaped receiving groove 12, and the depth of the receiving groove 12 is determined according to the length of the end portion of the fixing band 2 embedded in the device body 1. After the accommodating grooves 12 are formed in the first side wall and the second side wall of the device main body 1, the insertion holes 11 may be formed in the bottom of the accommodating grooves 12, and in the embodiment of the present application, the insertion holes 11 are formed at both ends of the accommodating grooves 12 in the length direction. The plane at the tank bottom place of the length direction holding tank 12 of every jack 11 is crossing, and the contained angle between the surface at the tank bottom place of the length direction of jack 11 and holding tank 12 is the acute angle, and then makes jack 11 set up for first lateral wall or the slope of second lateral wall, guarantees that card needle 3 can incline and insert in jack 11. It should be noted that, because the jack 11 is seted up on the tank bottom of holding tank 12, on the one hand after the end fixing of fixed band 2 is in holding tank 12, make jack 11 hidden in holding tank 12, avoid causing the reduction of the waterproof performance that jack 11 exposes the arouses, on the other hand, because in the fixed band 2 is embedded to equipment main part 1, because card needle 3 structure is tiny, consequently fixed band 2 embedding part also can be done very little, under the prerequisite that does not occupy too much equipment main part 1 installation space, can weaken the boundary between fixed band 2 and the equipment main part 1 system, be favorable to improving equipment main part 1's surface uniformity. In addition, the insertion hole 11 is formed in the bottom of the accommodating groove 12, so that the cutter can enter the accommodating groove conveniently during machining.

It should also be noted that one insertion hole 11 opened in the receiving groove 12 on the first side wall may be opened at the circular arc corner 13 at the connection of the first side wall and the third side wall, and another insertion hole 11 may be opened at the circular arc corner 13 at the connection of the first side wall and the fourth side wall. One insertion hole 11 opened in the receiving groove 12 on the second side wall may be opened at the circular arc angle 13 of the boundary position of the second side wall and the third side wall, and the other insertion hole 11 may be opened at the circular arc angle 13 of the boundary position of the second side wall and the fourth side wall. Thus, the jack 11 is arranged at the arc angle 13 of the device body 1, and the ear seat connecting jack 11 does not need to be additionally arranged on the device body 1, so that the surface consistency of the device body 1 is ensured. In addition, the included angle between the length direction of the jack 11 and the length direction of the plane of the first side wall or the second side wall is smaller than 90 degrees, namely, the jack 11 is obliquely arranged in the first side wall or the second side wall.

Both ends of fixed band 2 all are fixed with two card needles 3, and the tip at fixed band 2 is fixed to the first end of every card needle 3, and the second end of card needle 3 is pegged graft in jack 11. Use a tip of fixed band 2 as an example, the both sides of the tip of fixed band 2 respectively are fixed with a card needle 3, under the fixed condition of distance between two card needles 3, after the second end of two card needles 3 all inserted in jack 11, because the length direction of two card needles 3 of joint 12 in same holding tank intersects, consequently two card needles 3 all incline to insert in jack 11, every card needle 3 all receives the traction force of another card needle 3, make the surface of card needle 3 hug closely jack 11, and then make fixed band 2 joint on equipment main body 1. It should be noted that, fixed band 2 can be flexible fixed band 2, like flexible material such as rubber, plastic to make fixed band 2 have certain elasticity and plasticity, and then can adapt to different wearers 'the size of wearing, and when fixed band 2 received external force, can bear certain impact force, avoid fixed band 2 surface fracture, prolong fixed band 2's life.

It can be seen from the above embodiments that, in the embodiment of the present application, after the card needle 3 is inserted into the insertion hole 11 projected from the receiving groove 12, since the length directions of the two card needles 3 engaged with the same receiving groove 12 are crossed, each card needle 3 inserted into the insertion hole 11 obliquely by the card needle 3 is subjected to the traction force of the other card needle 3, so that the outer surface of the card needle 3 is tightly attached to the insertion hole 11, and the fixing strap 2 is engaged with the device body 1. Like this, because connect through card needle 3 and jack 11 between the equipment main part 1 that this application embodiment provided and fixed band 2, holding tank 12 has been seted up to first lateral wall and second lateral wall, a jack 11 has all been seted up at the both ends of the tank bottom of every holding tank 12, the contained angle between the surface at the tank bottom place of the length direction of jack 11 and holding tank 12 is the acute angle, consequently, get jack 11 and can not extend to the middle part of equipment main part 1, because card needle 3 is slim type, consequently, the shared volume of jack 11 is less, make the installation space of equipment main part 1 that jack 11 occupy also less, and then saved installation space for the installation of other spare on equipment main part 1.

Optionally, as shown in fig. 4, the second end of the latch pin 3 has a protrusion 33, and the protrusion 33 is a flexible material; the protrusion 33 and the hole wall of the socket 11 are in interference fit with the second end of the latch pin 3 inserted into the socket 11.

Specifically, under the condition that the second end of card needle 3 has arch 33, this arch 33 can be the spheroid, and the diameter of arch 33 is greater than the diameter of card needle 3, like this, holds the back of pegging graft in jack 11 at the second of card needle 3, can increase the second of card needle 3 and hold the frictional force between the jack 11, after fixed band 2 and equipment main part 1 are fixed, can avoid fixed band 2 and equipment main part 1 to drop. It should be noted that, the protrusion 33 may be made of rubber, epoxy resin, or other materials capable of generating a certain deformation amount, so that after the second end of the clip pin 3 is inserted into the insertion hole 11, the protrusion 33 may be in pressing contact with the hole wall of the insertion hole 11 to deform the protrusion 33, so that the protrusion 33 is in interference fit with the hole wall of the insertion hole 11, the friction force between the second end of the clip pin 3 and the hole wall of the insertion hole 11 is further increased, and the fixing band 2 and the device body 1 are further prevented from falling off.

Alternatively, as shown in fig. 4, the chucking pins 3 include a first chucking pin 31 and a second chucking pin 32; the first clamping pin 31 is movably connected with the second clamping pin 32, the first clamping pin 31 is fixed at the end part of the fixing band, and the second clamping pin 32 is inserted into the jack 11;

in the state where the chucking pins 3 and the socket 11 are engaged, the second chucking pins 32 protrude from the inside of the first chucking pins 31.

Specifically, the first latch needle 31 has a receiving cavity, and the second latch needle 32 can be movably connected in the receiving cavity. When the clamping pin 3 needs to be inserted into the insertion hole 11, the second clamping pin 32 can be prompted to extend out from the inside of the first clamping pin 31, and then the second clamping pin 32 is inserted into the insertion hole 11, so that the clamping connection between the fixing band 2 and the device body 1 is realized. When needs split equipment main part 1 and fixed band 2, can hold back first card needle 31 with second card needle 32 again, and then make second card needle 32 break away from jack 11 for fixed band 2 and equipment main part 1 separation make things convenient for installation and the dismantlement between fixed band 2 and the equipment main part 1 like this more.

Optionally, the first clip needle 31 has a receiving cavity, and an elastic member is disposed in the receiving cavity; one end of the elastic piece is fixed in the accommodating cavity, and the other end of the elastic piece is fixed with the end part of the second clamping needle 32; in the case where the chucking pin 3 and the insertion hole 11 are disengaged, the elastic member is in a compressed state.

It should be noted that, when the elastic member is fixed in the accommodating cavity of the first latch pin 31 and the second latch pin 32 needs to be inserted into the jack 11, the second latch pin 32 may extend out of the accommodating cavity under the resilience of the elastic member and then be inserted into the jack 11. When needs split equipment main part 1 and fixed band 2, can control the elastic component and retract, and then drive second card needle 32 and retract to holding in the chamber again, and then can realize extension and the retraction of second card needle 32 with the help of the extension and the retraction of elastic component for installation and dismantlement between fixed band 2 and the equipment main part 1 are more in the aspect. In addition, the elastic member may be one of springs, which are in a compressed state in a case where the second latch 32 is disengaged from the receptacle 11, and in a natural length in a case where the second latch 32 is engaged with the receptacle 11. In addition, a handle is further provided at the receiving cavity of the first latch needle 31, and the handle is used for pulling the elastic member to compress the elastic member in case that the second latch needle 32 is disengaged from the insertion hole 11. Further, the handle can be further provided with a braking part, one end of the braking part is fixedly connected with the handle, the other end of the braking part can be clamped or magnetically attracted onto the elastic part, when the elastic part is compressed to a preset length, the elastic part can be controlled to keep a compression state through the braking part, and the elastic part cannot automatically extend under the condition that tension is not continuously applied after the compression.

Optionally, the first end of the clip 3 is embedded in the end of the fixing band 2.

It should be noted that, after the first end of the clamping pin 3 is embedded at the end of the fixing band 2, the clamping pin 3 and the fixing band 2 are integrated, so that on one hand, the whole structure of the clamping pin 3 is firmer, and on the other hand, after the clamping pin 3 and the jack 11 are prevented from falling off, the clamping pin 3 is lost, and the fixing band 2 and the device main body 1 cannot be fixed again.

Alternatively, as shown in fig. 5, two clamping pins 3 are provided on each end of the fixing band 2; each card needle 3 comprises a fixing part 34 and a connecting part 35, the fixing part 34 is embedded in the end part of the fixing band 2, the connecting part 35 is connected with the fixing part 34, the connecting part 35 protrudes out of the end part of the fixing band, and the connecting part 35 is inserted in the insertion hole 11.

It should be noted that, because the fixing portions 34 of the two clamping pins 3 are both embedded at the end portion of the fixing band 2, the distance between the two clamping pins 3 is fixed, and the two clamping pins and the fixing band 2 form an integrated structure, so that after the connecting portion 35 is inserted into the insertion hole 11, the connecting portion 35 is always fixed at the end portion of the fixing band 2 under the support of the fixing portion 34, and thus the separation of the clamping pins 3 and the fixing band 2 in the assembling process is avoided.

Alternatively, as shown in fig. 5, the two fastening pins 3 provided at the end of each fastening band 2 are of a one-piece structure.

It is specific, the setting can fixed connection between the fixed part 34 that two card needles 3 of 2 tip of fixed band include, make two card needles 3 that 2 tip of every fixed band set up can formula structure as an organic whole, and then make two card needles 3 can constitute a whole frame rack structure, and thus, during the tip atress of every fixed band 2, card needle 3 is as a whole atress, and then avoid taking place to buckle because local atress is too big when the assembly, and under the condition of buckling takes place at the tip of fixed band 2, when card needle 3 is as whole atress, the power that can bear is also great, and then the intensity of the junction of fixed band 2 has been strengthened.

Alternatively, as shown in fig. 6, the section of the first direction of the insertion hole 11 is a bar shape, wherein the first direction is a direction perpendicular to the length direction of the insertion hole 11.

It should be noted that, when the cross-section of the first direction of jack 11 is the bar, card needle 3 is when pegging graft in jack 11, more makes things convenient for inserting of card needle 3, and when there is assembly error in the distance between two card needles 3, jack 11 of square cross-section also can provide certain assembly allowance, makes things convenient for card needle 3's second end and jack 11's oral area to align more, and then makes things convenient for the assembly between fixed band 2 and the equipment main part 1.

Still need to explain, this intelligence wearing equipment can also be electronic equipment such as intelligent bracelet, rhythm of the heart detection ring, and the structure and the function of this kind of intelligence wearing equipment are similar with the structure and the function of above-mentioned intelligent wrist-watch, and this application embodiment is no longer repeated this.

In addition, the first side wall and the second side wall are provided with accommodating grooves 12, and the insertion holes 11 are formed in the bottoms of the accommodating grooves 12; under the condition of card needle 3 and the grafting of jack 11, the end fixing of fixed band 2 is in holding tank 12, wherein, the length direction of jack 11 with contained angle between the surface at the tank bottom place of holding tank 12, because jack 11 is seted up on the tank bottom of holding tank 12, on the one hand after the end fixing of fixed band 2 is in holding tank 12, make jack 11 hidden in holding tank 12, avoid causing the reduction of the waterproof performance that jack 11 exposes and arouses, on the other hand, because embedded to equipment main part 1 in the fixed band 2, because card needle 3 is tiny in structure, consequently, fixed band 2 embedding part also can be done very little, under the prerequisite that does not occupy too much equipment main part 1 installation space, can weaken the border between fixed band 2 and the equipment main part 1 system, be favorable to improving equipment main part 1's surface uniformity.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The intelligent wearable device is characterized by comprising a device main body, a fixing belt and a clamping needle;

2. The smart wearable device according to claim 1, wherein the second end of the card needle has a protrusion, and the protrusion is a flexible material;

under the condition that the second end of the clamping needle is inserted into the jack, the protrusion is in interference fit with the hole wall of the jack.

3. The smart wearable device according to claim 1, wherein the card pin comprises a first card pin and a second card pin;

the first clamping pin and the second clamping pin are movably connected, the first clamping pin is fixed at the end part of the fixing band, and the second clamping pin is inserted into the jack;

under the condition that the clamping pin and the jack are plugged, the second clamping pin extends out of the inner part of the first clamping pin.

4. The intelligent wearable device of claim 3, wherein the first card needle has a receiving cavity, and an elastic member is arranged in the receiving cavity;

one end of the elastic piece is fixed in the accommodating cavity, and the other end of the elastic piece is fixed with the end part of the second clamping needle;

under the condition that the clamping pin is separated from the jack, the elastic piece is in a compressed state.

5. The intelligent wearable device according to claim 1, wherein a first end of the clip pin is embedded in an end of the fixing band.

6. The intelligent wearable device according to claim 1, wherein two of the clip pins are provided on each end of the fixing band;

each clamping needle comprises a fixing part and a connecting part, the fixing part is embedded in the end part of the fixing band, the connecting part is connected with the fixing part, the connecting part protrudes out of the end part of the fixing band, and the connecting part is inserted into the insertion hole.

7. The intelligent wearing device of claim 6, wherein the two fastening pins at the end of each fastening band are of an integral structure.

8. The intelligent wearable device according to claim 1, wherein a cross section of the first direction of the insertion hole is a bar shape, wherein the first direction is a direction perpendicular to a length direction of the insertion hole.