阅读说明：本技术 一种卫生间防水装饰结构及其施工方法 (Waterproof decorative structure of toilet and construction method thereof ) 是由 陈彦廷 杨光伟 李月弟 于 2021-06-18 设计创作，主要内容包括：本申请公开了一种卫生间防水装饰结构及其施工方法,涉及卫生间防水技术领域,改善了卫生间容易漏水的问题,其包括设置在卫生间底部呈矩形结构的沉箱、预设在沉箱底部的排水总管以及用于封闭沉箱开口的防水地板,防水地板上设置有地漏,沉箱包括底板、一对平行的侧板以及等间距垂直设置于两个侧板之间的若干支撑板,沉箱还包括水平设置于相邻支撑板之间的集水板,相邻所述支撑板与两个侧板之间形成供集水板安装的容纳腔,集水板的上端面开设有集水槽,排水支管远离排水总管的一端设有用于与地漏相连的连接管,当防水地板发生渗水时,防水地板所渗透的水体能够通过集水槽进行收集,并通过集水管一同汇入排水总管中,从而减少卫生间漏水现象的发生。(The application discloses a waterproof decorative structure of a toilet and a construction method thereof, which relate to the technical field of toilet waterproofing and improve the problem of easy water leakage of the toilet, and comprise a caisson arranged at the bottom of the toilet and in a rectangular structure, a drainage header pipe preset at the bottom of the caisson, and a waterproof floor used for sealing an opening of the caisson, wherein the waterproof floor is provided with a floor drain, the caisson comprises a bottom plate, a pair of parallel side plates and a plurality of support plates vertically arranged between the two side plates at equal intervals, the caisson also comprises a water collecting plate horizontally arranged between the adjacent support plates, a containing cavity used for installing the water collecting plate is formed between the adjacent support plates and the two side plates, the upper end surface of the water collecting plate is provided with a water collecting tank, one end of each drainage branch pipe far away from the drainage header pipe is provided with a connecting pipe used for connecting with the floor drain, when the waterproof floor is subjected to water seepage, the water body permeated by the waterproof floor can be collected through the water collecting tank, and the water is collected into the main drainage pipe through the water collecting pipe, thereby reducing the water leakage phenomenon of the toilet.)

1. The utility model provides a waterproof decorative structure of bathroom which characterized in that: the water collecting device comprises a caisson (1) which is arranged at the bottom of a toilet (28) and has a rectangular structure, a drainage header pipe (2) which is preset at the bottom of the caisson (1), and a waterproof floor (3) which is used for sealing an opening of the caisson (1), wherein a floor drain (19) is arranged on the waterproof floor (3), the caisson (1) comprises a bottom plate (4), a pair of parallel side plates (6) and a plurality of supporting plates (7) which are vertically arranged between the two side plates (6) at equal intervals, the caisson (1) further comprises a water collecting plate (11) which is horizontally arranged between the adjacent supporting plates (7), a containing cavity (10) for the water collecting plate (11) to be installed is formed between the adjacent supporting plates (7) and the two side plates (6), a water collecting groove (12) is formed on the upper end face of the water collecting plate (11), a plurality of first supporting rods (8) which are abutted against the bottom plate (4) and are used for supporting the water collecting plate (11) are vertically arranged on one side of the water collecting plate (11), the lower part that main drainage pipe (2) is located water-collecting sheet (11) is connected with drainage branch pipe (15), the one end that main drainage pipe (2) was kept away from in drainage branch pipe (15) is equipped with and is used for connecting pipe (16) continuous with floor drain (19), set up through-hole (17) that supply connecting pipe (16) to pass on water-collecting sheet (11), the border department that water-collecting tank (12) tank bottom is located through-hole (17) is provided with annular protruding edge (20), the periphery side of connecting pipe (16) is provided with and is used for establishing protection casing (18) including annular protruding edge (20) cover, the tank bottom of water-collecting tank (12) sets up collector pipe (13) that are used for with main drainage pipe (2) intercommunication.

2. The waterproof decorative structure of a toilet according to claim 1, wherein: the side wall of the accommodating cavity (10) above the water collecting plate (11) is provided with a guide structure for guiding water flow into the water collecting tank (12).

3. The waterproof decorative structure of a toilet according to claim 1, wherein: the bottom of the water collecting tank (12) is obliquely arranged towards the direction of the water collecting pipe (13).

4. The waterproof decorative structure of a toilet according to claim 3, wherein: the water collecting tank (12) is provided with a plurality of second supporting rods (9) which are used for supporting the waterproof floor (3) at equal intervals.

5. The waterproof decorative structure of a toilet according to claim 1, wherein: the water collecting pipe (13) comprises a water storage part (14) in a U-shaped structure.

6. The waterproof decorative structure of a toilet according to claim 5, wherein: the inner wall of the accommodating cavity (10) is circumferentially provided with a supporting convex edge (5) for supporting the water collecting plate (11).

7. The waterproof decorative structure of a toilet according to claim 2, wherein: the guide structure comprises guide plates (21) which are circumferentially arranged on the inner wall of the accommodating cavity (10), and the guide plates (21) are obliquely and downwards arranged towards the direction of the water collecting tank (12).

8. The waterproof decorative structure of a toilet according to claim 6, wherein: be provided with exhaust structure in caisson (1), exhaust structure includes ventilation pipe (22) and blast pipe (23), set up first connecting hole (24) that supply ventilation pipe (22) one end to connect on backup pad (7) in the caisson (1) outside, second connecting hole (25) that supply ventilation pipe (22) other end to connect are seted up to bathroom (28) upper end, set up exhaust hole (26) that supply blast pipe (23) to connect on backup pad (7) of first connecting hole (24) one end was kept away from in caisson (1), be located in caisson (1) backup pad (7) on stagger and be equipped with exhaust passage (27) that the air feed stream passes through, first connecting hole (24), exhaust hole (26) and exhaust passage (27) all are located the below of supporting protruding edge (5).

9. A construction method of a waterproof decorative structure for a toilet, comprising the waterproof decorative structure for a toilet according to any one of claims 1 to 7, characterized in that: the method comprises the following steps:

the method comprises the following steps: coating a waterproof coating on the inner wall of the caisson (1);

step two: mounting the water collecting plate (11) in the accommodating cavity (10) so that a water collecting pipe (13) on the water collecting plate (11) is connected with the drainage main pipe (2); the connecting pipe (16) penetrates through the through hole (17) of the water collecting plate (11), and the protective cover (18) on the connecting pipe (16) is covered on the annular convex edge (20);

step three: laying a waterproof floor (3), and connecting one end of the connecting pipe (16) with a floor drain (19) on the waterproof floor (3).

Technical Field

The application relates to the technical field of toilet water proofing, in particular to a toilet water-proof decorative structure and a construction method thereof.

Background

At present, a toilet is a place with more water in daily life, so that waterproof engineering is one of essential steps in toilet construction.

The existing chinese patent application No. CN201920672443.3 discloses a waterproof structure for a toilet, which includes a recessed drainage basin; the inner wall of the drainage pool is provided with a flexible waterproof layer; a plurality of support columns with the same height are uniformly arranged at the bottom of the drainage pool; a horizontal support plate is fixedly arranged at the upper part of the support column; a buffer space is formed between the support plate and the flexible waterproof layer; a packing layer is laid on the upper part of the supporting plate; a mortar waterproof layer and an integral waterproof layer are arranged on the upper part of the packing layer from bottom to top; the upper part of the integral waterproof layer is provided with a water blocking beam; the water blocking beam divides partial area of the toilet into a shower area; a shower waterproof layer is laid in the shower area on the whole waterproof layer; a main drainage pipe vertically penetrates through the drainage pool; the upper end inlet of the main drainage pipe is positioned outside the shower area; a water outlet is arranged in the shower area; an auxiliary drain pipe is obliquely arranged in the drainage pool; the upper end of the auxiliary drain pipe is communicated with the water outlet; the lower end of the auxiliary drainage pipe is communicated with the main drainage pipe; the joint of the main drainage pipe and the auxiliary drainage pipe is positioned in the buffer space; the surface of the flexible waterproof layer is provided with a slope; the main drainage pipe is positioned at the lowest part of the slope; the auxiliary drainage pipe is provided with dense drainage holes; the drain hole is located at the lowest part of the slope.

With respect to the related art in the above, the inventors consider that: because the building has the physical characteristic of expansion with heat and contraction with cold, and the bathroom is often taken a shower with hot water for the junction between the inner wall of drainage pond and the drain pipe receives expansion with heat and contraction with cold easily and produces the crack, makes the water in the bathroom probably permeate downstairs or other rooms along the crack, thereby leads to the phenomenon of bathroom leaking to take place.

Disclosure of Invention

In order to solve the problem that water is easy to leak in a toilet, the application provides a waterproof decorative structure for the toilet and a construction method of the waterproof decorative structure.

First aspect, the application provides a waterproof decorative structure of bathroom adopts following technical scheme:

a waterproof decoration structure for a toilet comprises a caisson arranged at the bottom of the toilet and in a rectangular structure, a main drainage pipe preset at the bottom of the caisson, and a waterproof floor used for sealing an opening of the caisson, wherein a floor drain is arranged on the waterproof floor, the caisson comprises a bottom plate, a pair of parallel side plates and a plurality of support plates vertically arranged between the two side plates at equal intervals, the caisson further comprises a water collecting plate horizontally arranged between the adjacent support plates, a containing cavity for the water collecting plate to be installed is formed between the adjacent support plates and the two side plates, a water collecting tank is arranged on the upper end face of the water collecting plate, a plurality of first support rods which are abutted against the bottom plate and used for supporting the water collecting plate are vertically arranged on one side of the water collecting plate, which is far away from the water collecting tank, the main drainage pipe is connected below the water collecting plate, and a connecting pipe used for connecting with the floor drain is arranged at one end of the main drainage pipe, which is far away from the main drainage pipe, the water collecting plate is provided with a through hole for the connecting pipe to pass through, the bottom of the water collecting tank is provided with an annular convex edge at the edge of the through hole, the outer peripheral side of the connecting pipe is provided with a protective cover for covering the annular convex edge, and the bottom of the water collecting tank is provided with a water collecting pipe communicated with the drainage main pipe.

Through adopting above-mentioned technical scheme, when the junction of connecting pipe and waterproof floor produced the crack, the below on water accessible crack entering waterproof floor in the bathroom to flow along the connecting pipe, and the protection casing on the connecting pipe can guide the water to the water catch bowl in, the water catch bowl is collected in gathering into the main sewer with the water through the collector pipe, makes the water that permeates on the waterproof floor be difficult to cause the phenomenon that the bathroom leaked.

Optionally, the side wall of the receiving cavity above the water collection sheet is provided with a guide structure for guiding the water flow into the water collection sump.

Through adopting above-mentioned technical scheme, when waterproof floor took place to leak, guide structure can collect in leading to the water catch bowl from the water body of waterproof floor infiltration for the water body is difficult to permeate to other rooms from the bathroom.

Optionally, the bottom of the water collecting tank is inclined towards the water collecting pipe.

Through adopting above-mentioned technical scheme, through the water catch bowl of the setting of slope, can be with the quick income drainage house steward of the water that flows into in the water catch bowl for the water is difficult to be detained in the water catch bowl.

Optionally, a plurality of second support rods for supporting the waterproof floor are arranged on the water collecting tank at equal intervals.

Through adopting above-mentioned technical scheme, the setting of second bracing piece can support waterproof floor, improves waterproof floor's structural strength.

Optionally, the water collecting pipe comprises a water storage part in a U-shaped structure.

Through adopting above-mentioned technical scheme, through the setting of water storage portion, when the water part holds there is water storage portion, the water of holding in the water storage portion can effectually prevent the gas entering water catch bowl of main sewer.

Optionally, a supporting convex edge for supporting the water collecting plate is circumferentially arranged on the inner wall of the accommodating cavity.

Through adopting above-mentioned technical scheme, support the setting of protruding edge, can improve the support intensity to the board that catchments.

Optionally, the guide structure includes a guide plate circumferentially disposed on the inner wall of the accommodating cavity, and the guide plate is disposed obliquely downward toward the water collecting tank.

Through adopting above-mentioned technical scheme, when the infiltration appears on waterproof floor, guide from the deflector of the water body accessible slope of waterproof floor upflow for the water can collect in getting into the water catch bowl through the deflector, and further reduction water body stays in the bathroom bottom and causes the emergence of bathroom water leakage phenomenon.

Optionally, an exhaust structure is arranged in the caisson, the exhaust structure comprises a ventilation pipe and an exhaust pipe, a first connecting hole for connecting one end of the ventilation pipe is formed in a supporting plate outside the caisson, a second connecting hole for connecting the other end of the ventilation pipe is formed in the upper end of the toilet, exhaust holes for connecting the exhaust pipe are formed in a supporting plate far away from one end of the first connecting hole, an exhaust channel for passing through air flow is formed in the supporting plate located in the caisson in a staggered mode, and the first connecting hole, the exhaust hole and the exhaust channel are located below the supporting convex edge.

Through adopting above-mentioned technical scheme, the one end that passes the second bleeder vent of ventilation pipe can be connected with exhaust equipment such as the air discharge fan in the bathroom, and the one end and the outside exhaust system of blast pipe are connected, and when the air discharge fan in the bathroom carried out the exhaust, in the gas that inhales can follow the ventilation pipe entering caisson in the bathroom to circulate to blast pipe department through the exhaust passage, discharge by the blast pipe, realize the circulation of air in the caisson.

In a second aspect, the application provides a construction method of a waterproof decoration structure of a toilet, which adopts the following technical scheme:

a construction method of a waterproof decorative structure of a toilet comprises the following steps:

the method comprises the following steps: coating a waterproof coating on the inner wall of the caisson;

step two: installing the water collecting plate in the accommodating cavity, so that a water collecting pipe on the water collecting plate is connected with the main drainage pipe; the connecting pipe penetrates through the through hole of the water collecting plate, and the protective cover on the connecting pipe is covered on the annular convex edge;

step three: laying a waterproof floor, and connecting one end of the connecting pipe with a floor drain on the waterproof floor.

Through adopting above-mentioned technical scheme, through above-mentioned mounting means, can effectually prevent that the water from permeating out in the bathroom.

In summary, the present application includes at least one of the following benefits:

1. when the waterproof floor is subjected to water seepage, water bodies permeated by the waterproof floor can be collected through the water collecting tank and are converged into the main drainage pipe through the water collecting pipe, so that the water leakage phenomenon of a toilet is reduced;

2. through the setting of deflector, can be better guide the water to collect in the water catch bowl.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is an exploded view of the embodiment embodying the caisson;

FIG. 3 is a schematic cross-sectional view of the caisson of this embodiment;

FIG. 4 is a schematic cross-sectional view of the water collection sheet of the present embodiment;

FIG. 5 is a schematic cross-sectional view of the water collection sheet of the present embodiment;

FIG. 6 is a schematic structural view of the present embodiment embodying the vent tube;

fig. 7 is a schematic structural view of the caisson of the present embodiment;

fig. 8 is a schematic structural view of the present embodiment embodying the second water permeable hole.

Description of reference numerals: 1. caisson; 2. a main drain pipe; 3. a waterproof floor; 4. a base plate; 5. supporting the convex edge; 6. a side plate; 7. a support plate; 8. a first support bar; 9. a second support bar; 10. an accommodating chamber; 11. a water collection plate; 12. a water collection tank; 13. a water collection pipe; 14. a water storage part; 15. a drain branch pipe; 16. a connecting pipe; 17. a through hole; 18. a protective cover; 19. a floor drain; 20. an annular convex edge; 21. a guide plate; 22. a vent pipe; 23. an exhaust pipe; 24. a first connection hole; 25. a second connection hole; 26. an exhaust hole; 27. an exhaust passage; 28. a toilet.

Detailed Description

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

The embodiment of the application discloses waterproof decorative structure of bathroom. Referring to fig. 1 and 2, the waterproof decoration structure of the toilet includes a caisson 1 provided at the bottom of the toilet 28, a main drain pipe 2 pre-installed in the caisson 1, and a waterproof floor 3 laid at an opening of the caisson 1. One end of the main drain 2 extends from the bottom of the toilet 28 and is connected to an external drainage system. The communicated waterproof floor 3 comprises a precast concrete plate laid at the opening of the caisson 1, a waterproof layer arranged on the precast concrete plate, a cement mortar protective layer and ceramic tiles laid on the cement mortar protective layer.

Referring to fig. 2 and 3, the caisson 1 may be disposed in the toilet 28 by means of concrete casting. Caisson 1 is the rectangle structure, and it includes bottom plate 4, water-collecting plate 11, connects perpendicularly a pair of parallel curb plate 6 on bottom plate 4 and equidistant perpendicular a plurality of backup pads 7 that set up between two curb plates 6, and drainage header 2 level is laid on bottom plate 4. Form the chamber 10 that holds that supplies water-collecting sheet 11 to install between adjacent backup pad 7 and curb plate 6, hold that circumference is provided with the protruding edge 5 that supports that is used for supporting water-collecting sheet 11 on the 10 inner walls of chamber, but water-collecting sheet 11 horizontal installation support protruding edge 5 on and with hold the lateral wall in chamber 10 and laminate mutually.

Referring to fig. 4 and 5, a water collecting groove 12 is formed on the upper end surface of the water collecting plate 11 for collecting water seeping from the waterproof floor 3. One side of the water collection plate 11 departing from the water collection tank 12 is vertically provided with a plurality of first support rods 8, and the plurality of first support rods 8 are distributed at equal intervals along the length direction of the water collection plate 11. When the water collection sheet 11 abuts against the support ledge 5, the first support bar 8 may abut against the bottom plate 4 to support the water collection sheet 11.

Referring to fig. 2 and 4, a branch drain pipe 15 is connected to the lower portion of the water collecting plate 11 of the main drain pipe 2, a connecting pipe 16 is vertically connected to one end of the branch drain pipe 15 away from the main drain pipe 2, a through hole 17 for the connecting pipe 16 to pass through is arranged in the water collecting tank 12, a floor drain 19 connected to one end of the connecting pipe 16 is arranged on the waterproof floor 3, and water in the toilet 28 can flow into the connecting pipe 16 through the floor drain 19 and can be collected into the main drain pipe 2 through the branch drain pipe 15. The number of the branch drain pipes 15 may be designed according to the number of the drain outlets provided in the toilet 28.

Referring to fig. 2 and 3, the water collecting tank 12 is provided with an annular flange 20 at the edge of the through hole 17, and a protective cover 18 is provided at the outer periphery of the connecting pipe 16, and the protective cover 18 can cover the annular flange 20. During construction, the connecting pipe 16 may be inserted through the through hole 17, and then the protective cover 18 may be fixed to the outer circumferential side of the connecting pipe 16 by gluing or the like, so as to guide the water body. The bottom of the water collecting plate 11 is provided with a water collecting pipe 13 communicated with the bottom of the water collecting tank 12, and one end of the water collecting pipe 13 is connected with the main drainage pipe 2 and is used for collecting water flow in the water collecting tank 12 into the main drainage pipe 2. When water seepage occurs between the floor drain 19 and the waterproof floor 3 or the connecting pipe 16, water flowing down along the outer periphery of the connecting pipe 16 can be guided into the water collecting tank 12 by the protective cover 18, so that the water is effectively prevented from permeating to the bottom of the caisson 1, and the water flowing into the water collecting tank 12 can be collected into the main drainage pipe 2 through the water collecting pipe 13.

Referring to fig. 4 and 5, the water collecting pipe 13 includes a water storage portion 14 having a U-shaped section, when the water flow is collected into the water collecting pipe 13, a part of the water stays in the water storage portion 14, and the water staying in the water storage portion 14 can prevent the gas of the drain main 2 from entering the water collecting tank 12 through the water collecting pipe 13.

Referring to fig. 4 and 5, a plurality of second support rods 9 for supporting the waterproof floor 3 are vertically arranged in the water collection tank 12, the second support rods 9 are arranged at equal intervals along the length direction of the water collection tank 12, and the second support rods 9 and the first support rods 8 can be located at the same axial position.

Referring to fig. 4 and 5, the bottom of the water collection tank 12 is inclined downward toward the water collection pipe 13, so that the water flowing into the water collection tank 12 can flow toward the water collection pipe 13.

Referring to fig. 6 and 7, the accommodating chamber 10 is provided above the water collecting plate 11 with a guiding structure, and the guiding structure can guide the water penetrated by the waterproof floor 3 into the water collecting tank 12 for collection. Specifically, the guide structure includes a guide plate 21 circumferentially disposed on the inner wall of the accommodating chamber 10, and the guide plate 21 is inclined downward toward the water collecting tank 12. After the installation of completion water-collecting sheet 11, can carry out the construction of deflector 21, deflector 21 can adopt the mode of reinforced concrete construction to fix on holding chamber 10 lateral wall to paint waterproof coating, thereby make things convenient for the installation of water-collecting sheet 11, can collect in guiding the water to water catch bowl 12 simultaneously.

Referring to fig. 7 and 8, an exhaust structure is arranged in the caisson 1, and the exhaust structure can promote the circulation of air in the caisson 1, so that the caisson 1 is kept in a relatively dry state and peculiar smell is not easily generated.

Referring to fig. 7 and 8, the exhaust structure includes a ventilation pipe 22 and an exhaust pipe 23, and one end of the ventilation pipe 22 is connected to the caisson 1 and the other end is connected to an exhaust device, such as an exhaust fan, of the toilet 28. Specifically, a first connecting hole 24 for connecting one end of the ventilation pipe 22 is formed in the support plate 7 outside the caisson 1, and a second connecting hole 25 for connecting the other end of the ventilation pipe 22 is formed in the upper end of the toilet 28. An exhaust hole 26 for connecting the exhaust pipe 23 is formed on the support plate 7 at one end of the caisson 1 far away from the first connecting hole 24, and one end of the exhaust hole 26 extending out of the caisson 1 can be connected with an external exhaust system. The supporting plate 7 in the caisson 1 is provided with air discharge channels 27 for air flow to pass through in a staggered manner, and the first connecting holes 24, the air discharge holes 26 and the air discharge channels 27 are all positioned below the supporting convex edges 5.

When the exhaust equipment is used for exhausting air to the toilet 28, the air can enter the caisson 1 through the ventilation pipe 22, sequentially passes through each accommodating cavity 10 through the exhaust channel 27 and is finally exhausted from the exhaust pipe 23, so that the circulation of the air in the caisson 1 is realized, and the caisson 1 is kept in a dry state. In order to prevent the gas in caisson 1 from entering toilet 28 through vent pipe 22, a pipe check valve may be installed in vent pipe 22 for preventing the gas in caisson 1 from flowing backward into toilet 28.

The implementation principle of the waterproof decoration structure of the bathroom 28 in the embodiment of the application is as follows:

when water leakage occurs in the waterproof floor 3 or the floor drain 19, the permeated water can be guided into the water collecting tank 12 through the protective cover 18 or the guide plate 21 on the connecting pipe 16 and is collected into the main drainage pipe 2 through the water collecting pipe 13 connected with the water collecting tank 12, so that the water leakage phenomenon of the toilet 28 is not easy to occur.

The embodiment of the application also discloses a construction method of the waterproof decorative structure of the toilet. Referring to fig. 1, the method includes the following steps:

the method comprises the following steps: the caisson 1 is formed by a way of pouring concrete on the side wall of the bottom of the toilet 28, and a waterproof coating is coated on the inner wall of the caisson 1 for improving the waterproof performance of the caisson 1;

step two: mounting the exhaust pipe 23 and the vent pipe 22;

step three: installing the water collection plate 11 in the accommodating cavity 10, so that the water collection plate 11 is abutted against the supporting convex edge 5, the first supporting rod 8 at the lower end of the water collection plate 11 is abutted against the bottom plate 4, and meanwhile, the water collection pipe 13 on the water collection plate 11 is connected with the drainage header pipe 2 in a thermal bonding mode; and the connecting pipe 16 is penetrated through the through hole 17 of the water collecting plate 11, and then the protective cover 18 is fixed on the connecting pipe 16, so that the protective cover 18 can be covered on the annular convex edge 20; meanwhile, the through holes 17 on the other water collecting plates 11 are plugged by adopting a sealing plug or a cover;

step four: constructing the guide plate 21, and coating a waterproof coating on the guide plate 21 after construction, so that the guide plate 21 can guide the downward-infiltrated water body into the water collecting tank 12 for discharge;

step five: the construction of precast concrete board, waterproof layer, cement mortar protective layer and ceramic tile is carried out in turn from bottom to top at the opening of the caisson 1, thus forming the waterproof floor 3, and finally, the connecting pipe 16 penetrating through the waterproof floor 3 is connected with the floor drain 19 on the waterproof floor 3.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.