阅读说明：本技术 一种隔热低门槛铝包木门结构 (Thermal-insulated low threshold aluminium-clad timber structure ) 是由 马俊清 于 2021-10-20 设计创作，主要内容包括：本申请涉及一种铝包木门槛,尤其是涉及一种隔热低门槛铝包木门结构,其技术方案要点是：一种隔热低门槛铝包木门结构包括门扇本体以及门槛组,门扇本体与门槛组之间存在高度差,且门扇本体的下表面设置有能够在二者之间由于受挤压而发生弹性形变的密封件；达到了实现门槛高度的降低以使门槛具有良好的可通过性的目的。(The utility model relates to an aluminium package wooden threshold especially relates to a thermal-insulated low threshold aluminium package timber structure, and its technical scheme main points are: a heat-insulating low-threshold aluminum-clad wooden door structure comprises a door leaf body and a threshold group, wherein a height difference exists between the door leaf body and the threshold group, and a sealing element which can elastically deform due to extrusion is arranged on the lower surface of the door leaf body; the purpose of reducing the height of the threshold so that the threshold has good passability is achieved.)

1. The utility model provides a thermal-insulated low threshold aluminium package timber structure, includes door leaf body (1) and threshold group (2), its characterized in that: a height difference exists between the door leaf body (1) and the threshold group (2), and a sealing piece (3) which can be elastically deformed due to extrusion is arranged on the lower surface of the door leaf body (1).

2. The insulated low-threshold aluminum-clad wood door structure of claim 1, wherein: the sealing element (3) is provided with a cavity for the sealing element (3) to deviate from one end of the door leaf body (1) and to elastically deform towards the direction close to the door leaf body (1).

3. The heat-insulating low-threshold aluminum-clad wood door structure according to claim 1 or 2, wherein: an insertion strip (31) is formed at the top of the sealing element (3), and an insertion hole (11) for inserting the insertion strip (31) is formed in the door leaf body (1); the side surface of the insertion strip (31) is formed with a fastening convex strip (32) which can be deformed and contracted and then is extruded into the insertion hole (11).

4. The insulated low-threshold aluminum-clad wood door structure of claim 1, wherein: the doorsill group (2) comprises an outer doorsill (22) and an inner doorsill (21), a water blocking platform (221) is formed on the outer doorsill (22), and one side, away from the inner doorsill (21), of the outer doorsill (22) is lower than one side, close to the inner doorsill (21).

5. The insulated low-threshold aluminum-clad wood door structure of claim 4, wherein: a sealing edge (12) which is positioned on one side, away from the outer threshold (22), of the inner threshold (21) is formed on the door leaf body (1), and an auxiliary sealing element (4) is arranged between the sealing edge (12) and the inner threshold (21).

6. The heat-insulating low-threshold aluminum-clad wood door structure according to claim 4 or 5, wherein: one of the outer threshold (22) and the inner threshold (21) is provided with a plug board (222) which is vertically arranged, and the other one is provided with a slot (211) for the plug board (222) to be embedded; one of the outer threshold (22) and the inner threshold (21) is formed with a lapping block (223), and the other is formed with a baffle (212) for the lapping block (223) to lap horizontally.

7. The insulated low-threshold aluminum-clad wood door structure of claim 4, wherein: an inner threshold buckle plate (23) is erected above the inner threshold (21), a limiting plate (231) is formed on one of the inner threshold (21) and the inner threshold buckle plate (23), the limiting plate (231) is vertically or obliquely arranged, and a limiting groove (213) for inserting the limiting plate (231) is formed in the other limiting plate; the inner doorsill (21) and the inner doorsill buckle plate (23) are respectively provided with a lap joint edge (215), and the two lap joint edges (215) are horizontally lapped with each other.

8. The insulated low-threshold aluminum-clad wood door structure of claim 7, wherein: one of the inner threshold buckle plate (23) and the outer threshold (22) is formed with a horizontal or inclined limiting convex strip (232), and the other one is provided with a limiting groove (224) for embedding the limiting convex strip (232).

9. The insulated low-threshold aluminum-clad wood door structure of claim 4, wherein: one side of the door leaf body (1) close to the outer doorsill (22) is fixedly provided with a rain shielding edge (6), and the rain shielding edge (6) inclines towards the direction gradually departing from the door leaf body (1) from top to bottom.

10. The insulated low-threshold aluminum-clad wood door structure of claim 9, wherein: the rain shielding edge (6) is provided with a dustproof wool top (7) which is positioned right above the outer doorsill (22), and the dustproof wool top (7) extends towards the direction close to the outer doorsill (22).

Technical Field

The application relates to an aluminium-clad wood threshold, in particular to a heat-insulating low-threshold aluminium-clad wood door structure.

Background

The aluminum-clad wood door and window is a frame body formed by compounding a heat-insulating bridge-cut-off aluminum alloy section and solid wood through a mechanical method on the premise of keeping the characteristics and functions of a pure solid wood door and window.

A threshold group 2 used in conjunction with the above-mentioned aluminum-clad wooden door leaf described in the related art, referring to fig. 1, includes an outer threshold 22 and an inner threshold 21, a heat insulation strip 8 is provided between the outer threshold 22 and the inner threshold 21, and a sealing step 9 is provided at a transition position between the outer threshold 22 and the inner threshold 21; the aluminum-clad wood door leaf comprises a door leaf body 1, and a sealing element 3 is arranged between the door leaf body 1 and the vertical surface of the sealing step 9 so as to achieve a good sealing effect between the door leaf and the threshold.

In view of the above-mentioned related art solutions, the inventors found that: in order to arrange the sealing element 3, a relatively high sealing step 9 is often required for arranging the sealing element 3 between the door leaf and the door sill, with the consequent problem of a considerably reduced flatness and permeability of the surface of the door sill.

Disclosure of Invention

In order to realize the reduction of threshold height so that the threshold has good passability, this application provides a thermal-insulated low threshold aluminium alclad timber structure.

The application provides a pair of thermal-insulated low threshold aluminium package timber structure adopts following technical scheme:

the utility model provides a thermal-insulated low threshold aluminium package timber structure, includes door leaf body and threshold group, exists the difference in height between door leaf body and the threshold group, and the lower surface of door leaf body is provided with can be between the two because the sealing member that takes place elastic deformation by the extrusion.

By adopting the technical scheme, the sealing element realizes the sealing between the doorsill group and the door leaf body, so that a sealing step with higher fall is not required to be arranged on the door leaf body, and the upper surface of the doorsill assembly can ensure higher flatness, so that the doorsill has good passability.

Optionally, a cavity is formed in the sealing element, and the cavity is used for allowing one end of the sealing element, which is away from the door leaf body, to elastically deform towards the direction close to the door leaf body.

Through adopting above-mentioned technical scheme, when the door leaf body wants to close, the lower surface of door leaf body turns to the top of threshold group gradually, and the sealing member takes place elastic deformation and is compressed tightly between the two after receiving the extrusion between door leaf body and the threshold group at this in-process, and the cavity makes the sealing member have better deformability, and then makes closing and opening of door leaf body easier.

Optionally, an insertion strip is formed at the top of the sealing element, and an insertion hole for inserting the insertion strip is formed in the door leaf body; the side of the insertion strip is formed with a fastening convex strip which can be deformed and contracted and then extruded into the insertion hole.

Through adopting above-mentioned technical scheme, when needs are fixed the sealing member on the door leaf body, will insert the strip and push to the downthehole portion of insertion, fastening sand grip will receive the extrusion of insertion hole pore wall and take place elastic deformation at this in-process, and great extrusion force will produce great mutual friction between fastening sand grip and the insertion hole pore wall, and then makes the insertion strip be difficult to deviate from the downthehole portion of insertion, has realized linking firmly between sealing member and the door leaf body promptly.

Optionally, the threshold group includes an outer threshold and an inner threshold, a water blocking step is formed on the outer threshold, and one side of the outer threshold departing from the inner threshold is lower than one side close to the inner threshold.

Through adopting above-mentioned technical scheme, realize blockking of rainwater, when the rainwater submerge the one end that outer threshold deviates from interior threshold and reach the lower one side of outer platform height that blocks water, the platform that blocks water can play fine manger plate effect, prevents effectively that the rainwater from entering into indoorly through the space between outer threshold and the door leaf body.

Optionally, the door leaf body is formed with a sealing edge positioned on one side of the inner threshold departing from the outer threshold, and an auxiliary sealing element is arranged between the sealing edge and the inner threshold.

Through adopting above-mentioned technical scheme, realize the sealed between door leaf body and the interior threshold, through the sealed reliable sealed between with the door leaf body of improvement and threshold group of twice of sealing member and vice sealing member.

Optionally, a vertically arranged inserting plate is formed on one of the outer threshold and the inner threshold, and a slot for inserting the inserting plate is formed on the other one of the outer threshold and the inner threshold; one of the outer threshold and the inner threshold is formed with a lapping block, and the other is formed with a baffle for the lapping block to lap horizontally.

By adopting the technical scheme, the plug board is matched with the slot to realize the limit between the outer threshold and the inner threshold in the horizontal direction; the lap-joint relation between the lap-joint block and the baffle is matched with the limit realized in the horizontal direction, so that the limit between the outer threshold and the inner threshold in the vertical direction is realized.

Optionally, an inner threshold buckle plate is erected above the inner threshold, a limiting plate is formed on one of the inner threshold and the inner threshold buckle plate, the limiting plate is vertically or obliquely arranged, and a limiting groove for inserting the limiting plate is formed in the other limiting plate; the inner threshold and the inner threshold buckle plate are respectively provided with a lap joint edge, and the two lap joint edges are horizontally lapped with each other.

By adopting the technical scheme, when the inner threshold is fixed on the ground, a screw needs to be driven into the surface, and the arrangement of the buckling plate of the inner threshold can effectively improve the flatness of one side of the inner threshold and the surface of the outer threshold, so that the attractiveness and the passing performance of the threshold group are improved; the spacing in the horizontal direction between threshold and the interior threshold buckle in the cooperation realization of limiting plate and spacing groove, the overlap joint relation cooperation on two overlap joint edges has been realized spacing in the horizontal direction and then realize spacing in vertical direction between threshold and the interior threshold buckle.

Optionally, the forming has the spacing sand grip of level or slope setting on one of them of interior threshold buckle and outer threshold, offers the spacing recess that supplies spacing sand grip embedding on the other.

Through adopting above-mentioned technical scheme, realize between threshold buckle and the outer threshold spacing in vertical side, spacing and interior threshold between threshold and the outer threshold spacing of cooperation in the aforesaid like this between threshold and the inner threshold buckle, it is spacing to realize the closed loop between threshold buckle, outer threshold and the inner threshold three in, has improved threshold group mounting structure's stability.

Optionally, a rain shielding edge is fixed on one side of the door leaf body close to the outer doorsill, and the rain shielding edge inclines towards the direction gradually departing from the door leaf body from top to bottom.

Through adopting above-mentioned technical scheme, when the door leaf body closed, outdoor rainwater whereabouts to keep off the rain along last and along the incline direction that keeps off the rain along the direction landing of leaving away from the door leaf body dorsad, and then effectively reduces the rainwater and enters into between door leaf body and the outer threshold, realizes then the indoor effectual effect of keeping off the rain.

Optionally, the rain blocking edge is provided with a dustproof wool top located right above the outer doorsill, and the dustproof wool top extends towards the direction close to the outer doorsill.

Through adopting above-mentioned technical scheme, make to have good dustproof effect between door leaf body and the outer threshold, the dust enters into from outdoor into indoor through the space between door leaf body and the outer threshold when preventing that the door leaf body from closing.

In summary, the present application has the following technical effects:

1. the sealing element is arranged above the threshold group and between the door leaf body and the threshold group, so that a sealing step with higher fall is not required to be arranged on the door leaf body, and the upper surface of the threshold component can ensure higher flatness, so that the threshold has good passability;

2. the closed-loop limiting is arranged among the inner threshold buckle plate, the outer threshold and the inner threshold, so that the stability of the threshold group installation structure is improved;

3. through having set up platform, vice sealing member, rain edge and the dustproof wool top of hindering water, realize between door leaf body and the threshold group to isolated to dust, rainwater and heat.

Drawings

Fig. 1 is a schematic view of an overall structure of a doorsill set used in conjunction with an aluminum-clad wooden door leaf in the related art;

FIG. 2 is a schematic view of an insulated low sill aluminum clad wood door structure in an embodiment of the present application;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a schematic view of the overall structure of the seal member in the embodiment of the present application.

In the figure, 1, a door leaf body; 11. inserting holes; 12. a sealing edge; 2. a threshold group; 21. an inner threshold; 211. a slot; 212. a baffle plate; 213. a limiting groove; 214. positioning the projection; 215. overlapping edges; 216. an inner bending plate; 22. an outer threshold; 221. a water blocking table; 222. inserting plates; 223. a lapping block; 224. a limiting groove; 225. an outer bending plate; 23. an inner threshold buckle; 231. a limiting plate; 232. limiting convex strips; 3. a seal member; 31. inserting the strip; 32. fastening the convex strips; 4. a secondary seal; 5. an aluminum alloy material; 51. a female hook; 6. a rain shielding edge; 61. fixing the side plate; 62. a set screw; 63. a sub-hook; 7. dustproof wool tops; 8. a heat insulating strip; 9. and sealing the step.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Referring to fig. 2, the application provides a heat-insulating low-threshold aluminum-clad wood door structure, which comprises a door leaf body 1 and a threshold group 2, wherein the threshold group 2 is fixed on the ground, and the door leaf body 1 is arranged above the threshold group 2; further, the threshold group 2 comprises an outer threshold 22 made of an aluminum alloy material and arranged close to the outdoor and an inner threshold 21 arranged close to the indoor, the inner threshold 21 is made of low heat conduction materials such as PVC, the inner threshold 21 is fixedly connected with the outer threshold 22, so that the outer threshold 22 can ensure that the threshold group 2 has enough strength and stability to bear treading pressure and kicking thrust, the inner threshold 21 has a good heat insulation effect, cold bridges of the threshold group 2 are effectively reduced, the heat insulation performance is improved, and heat insulation strips 8 in the related technology are replaced to ensure that the indoor and outdoor heat insulation performance is good; the door leaf body 1 is a wooden door leaf body 1, and an aluminum alloy material 5 is fixed on one side of the door leaf body 1 close to the outdoor.

Further, the inner threshold 21 is fixed on the ground through screws, and the outer threshold 22 is directly fixed on the inner threshold 21, so that the head or screw hole of the screw exists on the surface of the inner threshold 21 to reduce the flatness of the upper surface of the inner threshold 21, therefore, the height of the upper surface of the inner threshold 21 is lower than that of the upper surface of the outer threshold 22, an inner threshold buckle plate 23 is fixed above the inner threshold 21, and the upper surface of the inner threshold buckle plate 23 is flush with the upper surface of one side, close to the inner threshold 21, of the outer threshold 22.

In order to ensure that the inner threshold buckle plate 23, the outer threshold 22 and the inner threshold 21 have excellent installation stability, the three are limited by a closed loop to form a stable whole.

Specifically, referring to fig. 2 and 3, an inner bending plate 216 with a downward opening is formed at the lower end of one side of the inner threshold 21 close to the outer threshold 22, an outer bending plate 225 with an upward opening is formed at the lower end of one side of the outer threshold 22 close to the inner threshold 21, the outer bending plate 225 and the inner bending plate 216 are buckled with each other, further, an inserting plate 222 is defined at one side of the outer bending plate 225 away from the outer threshold 22, an inserting groove 211 is defined as an opening groove of the inner bending plate 216, and the inserting plate 222 is inserted into the inserting groove 211, so that horizontal limiting between the outer threshold 22 and the inner threshold 21 is realized; in addition, the one side lower extreme shaping that interior board 216 of bending deviates from outer threshold 22 has baffle 212, baffle 212 is to the direction extension that is close to outer threshold 22, the one side that outer board 225 deviates from outer threshold 22, namely the lower extreme shaping of picture peg 222 has the overlap joint piece 223 that can the overlap joint on baffle 212, overlap joint piece 223 is to the direction slope of departing from outer threshold 22, and overlap joint piece 223 deviates from the one end butt of outer threshold 22 on the cell wall of slot 211, realize vertical spacing between outer threshold 22 and the interior threshold 21 like this, of course, overlap joint piece 223 also can set up on interior board 216 of bending and baffle 212 sets up on outer board 225 of bending, vertical spacing between with can realizing outer threshold 22 and interior threshold 21 is accurate.

Referring to fig. 2 and 3, for the fixation between the inner sill buckle plate 23 and the inner sill 21, a limiting plate 231 which is vertically or obliquely arranged is formed on the lower surface of the inner sill buckle plate 23, and in the embodiment, the limiting plate 231 is obliquely arranged and gradually inclines away from the outer sill 22 from top to bottom; the upper surface of the inner threshold 21 is provided with a limiting groove 213 into which the limiting plate 231 is inserted, and the limiting groove 213 is also inclined away from the outer threshold 22 from top to bottom, so that the limiting between the inner threshold 21 and the inner threshold buckle plate 23 along the horizontal direction is realized, of course, the limiting groove 213 can also be provided on the inner threshold buckle plate 23 and the limiting plate 231 is molded on the inner threshold 21, so that the horizontal limiting between the inner threshold 21 and the inner threshold buckle plate 23 can be realized; in addition, the upper surface of the inner threshold 21 is far away from the position of the outer threshold 22 and is molded with a positioning protrusion 214 extending upwards, the upper end of the positioning protrusion 214 and the lower end of the limiting plate 231 are both molded with a lapping edge 215, the two lapping edges 215 are all arranged on one side of the positioning protrusion 214 and the limiting plate 231 close to each other, and the two lapping edges 215 are lapped horizontally with each other, so that the vertical limiting between the inner threshold 21 and the inner threshold buckle plate 23 is realized.

Referring to fig. 2 and 3, for the limit between the inner threshold buckle plate 23 and the outer threshold 22, a limit groove 224 is formed in one side of the outer threshold 22 close to the inner threshold buckle plate 23, a limit convex strip 232 capable of being embedded into the limit groove 224 is formed in one side of the inner threshold buckle plate 23 close to the outer threshold 22, the limit convex strip 232 is horizontally or obliquely arranged, and in the embodiment, the limit convex strip 232 is obliquely arranged; of course, the limiting groove 224 may also be formed on one side of the inner sill buckle plate 23 close to the outer sill 22 and the limiting convex strip 232 is formed on one side of the outer sill 22 close to the inner sill buckle plate 23, so as to achieve the limiting between the inner sill buckle plate 23 and the outer sill 22.

Referring to fig. 2, in order to reduce the height of the threshold group 2 having the sealing step 9 as much as possible in the related art in the case of having a good sealing performance between the door body 1 and the threshold group 2, a height difference exists between the lower surface of the door body 1 and the upper surface of the threshold group 2, and further, a height difference exists between the lower surface of the door body 1 and the outer threshold 22; an elastic sealing element 3 is arranged between the door leaf body 1 and the outer threshold 22, and when the door leaf body 1 rotates to the position above the outer threshold 22, the sealing element 3 can generate elastic deformation and be pressed tightly between the door leaf body 1 and the outer threshold 22 due to compression; therefore, the arrangement of the sealing step 9 in the related art is omitted, the upper surface of the outer doorsill 22 is not required to have local height difference so that the sealing element 3 is arranged in the upper surface of the outer doorsill 22 and the lateral sealing is formed between the door leaf body 1 and the outer doorsill 22, and the upper surface of the doorsill assembly 2 is ensured to have the condition of higher flatness so that the doorsill has good passability.

Referring to fig. 2 and 4, further, in order to make the sealing member 3 have better deformation performance and further make the opening and closing of the door leaf body 1 more convenient, a cavity is formed in a portion of the sealing member 3 below the door leaf body 1, and the cavity makes one end of the sealing member 3, which is away from the door leaf body 1, that is, the lower end of the sealing member itself, more easily generate upward elastic deformation, specifically, the longitudinal cross-sectional shape of the sealing member 3 may be a circular ring shape, a rectangular ring shape, a rhombic ring shape, a U shape, a zigzag shape, a mosquito-repellent incense shape, or the like, but if the shape makes a gap exist between the upper end and the lower end of the sealing member 3 to form the cavity, in this embodiment, the longitudinal cross-sectional shape of the sealing member 3 is selected to be a rhombic ring shape.

Referring to fig. 2 and 4, as for the fixing manner between the sealing element 3 and the door leaf body 1, a vertically arranged insertion strip 31 is formed at the upper end of the sealing element 3, an insertion hole 11 for inserting the insertion strip 31 is formed in the lower surface of the door leaf body 1, and the width of the insertion hole 11 is greater than that of the insertion strip 31; fastening convex strips 32 are formed on one side or two sides of the insertion hole 11, in the embodiment, a plurality of fastening convex strips 32 are formed on two sides of the insertion hole 11, the maximum horizontal distance between the fastening convex strips 32 on two sides is larger than the width of the insertion hole 11 under the state that the insertion strip 31 is not inserted into the insertion hole 11, so that when the insertion strip 31 is to be inserted into the insertion hole 11, the fastening convex strips 32 are extruded by the hole wall of the insertion hole 11 and deform and shrink to be extruded into the insertion hole 11, which is equivalent to that the insertion strip 31 realizes interference connection with the insertion hole 11 through the fastening convex strips 32, namely, the sealing element 3 is fixed with the door leaf body 1; in order to facilitate the insertion of the fastening rib 32 into the interior of the insertion hole 11, the fastening rib 32 is inclined downward in a direction from the approach to the departure from the insertion strip 31, and thus is smoother when the fastening rib 32 comes into contact with the edge of the opening of the insertion hole 11 and is pushed into the interior of the insertion hole 11.

Referring to fig. 2, in addition, a second seal is further arranged between the door leaf body 1 and the threshold group 2, that is, a sealing edge 12 is formed on the lower surface of one side of the door leaf body 1 close to the indoor space, the sealing edge 12 is located on one side of the inner threshold 21 away from the outer threshold 22, that is, close to the indoor space, a horizontal gap exists between the sealing edge 12 and one side of the outer threshold 22 close to the indoor space, and an auxiliary sealing member 4 capable of being pressed between the sealing edge 12 and the outer threshold 22 is arranged inside the gap.

Referring to fig. 2, accumulated water and the like easily exist on the outdoor ground, in order to enable the threshold group 2 to have a good water blocking function, a water blocking platform 221 is formed on the upper surface of the outer threshold 22, one side of the outer threshold 22, which is far away from the inner threshold 21, is lower than one side of the outer threshold which is close to the inner threshold 21, and in addition, a certain distance exists between the upper surface of the outer threshold 22 and the ground, so that the outer threshold 22 has a good water blocking function, and rainwater is effectively prevented from entering the indoor space through a gap between the outer threshold 22 and the door leaf body 1; however to the condition of outdoor rainy, the rainwater still can directly fall to the upper surface of outer threshold 22 and sputter overflow to interior threshold 21 department, for this reason, door leaf body 1 is close to outdoor one side and is provided with rain-proof edge 6, rain-proof edge 6 is fixed on aluminium alloy 5, and rain-proof inclines to the direction that deviates from door leaf body 1 gradually along 6 top-down, when door leaf body 1 closed, outdoor rainwater falls to rain-proof along 6 and along the slope direction of rain-proof edge 6 backward from door leaf body 1's direction landing, and then effectively reduce the rainwater and enter into between door leaf body 1 and the outer threshold 22.

Referring to fig. 2, as for the fixing mode of the rain shielding edge 6, two opposite sub hooks 63 are formed on the rain shielding edge 6, two opposite female hooks 51 are formed on the lower surface of the aluminum alloy material 5, the distance between the two sub hooks 63 is smaller than the distance between the two female hooks 51, the two sub hooks 63 can deform in the direction of approaching each other and are inserted into the two female hooks 51, and meanwhile, the hook parts of the sub hooks 63 and the hook parts of the female hooks 51 are in lap joint and are buckled with each other, so that the rain shielding edge 6 is difficult to be separated from the aluminum alloy material 5; further, one side shaping that rain-proof edge 6 is close to door leaf body 1 has fixed curb plate 61, runs through fixed curb plate 61 and is provided with and door leaf body 1 threaded connection's set screw 62, and then realizes rain-proof along 6 and door leaf body 1 fixed.

Referring to fig. 2, in order to make the structure have a good dustproof function, so as to reduce the possibility that dust enters the room from the outside through the gap between the door leaf body 1 and the outer threshold 22 when the door leaf body 1 is closed, the rain blocking edge 6 is provided with a dustproof wool top 7 located right above the outer threshold 22, the further dustproof wool top 7 is located above the lower side of the water blocking platform 221, and the dustproof wool top 7 extends towards the direction close to the outer threshold 22.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.