阅读说明：本技术 一种多功能护墙板 (Multifunctional wall panel ) 是由 李海平 于 2018-06-20 设计创作，主要内容包括：本发明涉及多功能护墙板技术领域,特别涉及一种多功能护墙板；本发明包括装饰板体以及安装基板,安装基板贴着墙体并和墙体连接；安装基板的上端面设置有向下延伸的且截面呈方形的散热腔,散热腔的四周腔壁以及腔底上均设置有第一导热板,散热腔中设置有电加热装置；散热腔靠近墙体的腔壁设置有多个散热孔,散热孔与安装基板靠近墙面的侧面连通,与具有散热孔的腔壁相连接的第一导热板上相应地开设有与散热孔相通的连通孔；安装基板靠近墙体的侧面开设有多个自上而下延伸的竖直排水槽；竖直排水槽和散热孔相交汇；本发明具有以下有益效果：渗水速度慢,除湿速度快,安全性能高,使用寿命长。(The invention relates to the technical field of multifunctional wall panels, in particular to a multifunctional wall panel; the decorative plate comprises a decorative plate body and a mounting substrate, wherein the mounting substrate is attached to a wall body and is connected with the wall body; the upper end surface of the mounting substrate is provided with a heat dissipation cavity which extends downwards and has a square cross section, the peripheral cavity walls and the cavity bottom of the heat dissipation cavity are respectively provided with a first heat conduction plate, and an electric heating device is arranged in the heat dissipation cavity; the first heat conducting plate connected with the wall with the heat dissipation holes is correspondingly provided with communication holes communicated with the heat dissipation holes; the side surface of the mounting substrate, which is close to the wall body, is provided with a plurality of vertical drainage grooves extending from top to bottom; the vertical drainage channel and the heat dissipation holes are intersected; the invention has the following beneficial effects: the water seepage speed is low, the dehumidification speed is high, the safety performance is high, and the service life is long.)

1. The multifunctional wall panel is characterized by comprising a decorative panel body (1) and a mounting substrate (2) connected with the decorative panel body (1), wherein the mounting substrate (2) is attached to a wall body and connected with the wall body; the upper end surface of the mounting substrate (2) is provided with a heat dissipation cavity (3) which extends downwards and has a square cross section, the walls and the bottom of the peripheral cavity of the heat dissipation cavity (3) are provided with first heat conduction plates (4), and an electric heating device (5) is arranged in the heat dissipation cavity (3); a plurality of heat dissipation holes (6) are formed in the heat dissipation cavity (3) close to the wall body, the heat dissipation holes (6) are communicated with the side face, close to the wall surface, of the mounting substrate (2), and communication holes (8) communicated with the heat dissipation holes (6) are correspondingly formed in the first heat conduction plate (4) connected with the wall body with the heat dissipation holes (6); the side surface of the mounting substrate (2) close to the wall body is provided with a plurality of vertical drainage grooves (1 a) extending from top to bottom; the vertical drainage groove (1 a) and the heat dissipation holes (6) are intersected.

2. A multi-functional panel according to claim 1, wherein said heat dissipation apertures (6) comprise horizontal heat dissipation channels (61) communicating with said heat dissipation chamber (3) and inclined heat dissipation channels (62) connected to said horizontal heat dissipation channels (61) and extending obliquely downward, said inclined heat dissipation channels (62) meeting said vertical drainage channels (1 a).

3. A multi-functional panel according to claim 1, characterized in that it further comprises a water-impermeable top cover (2 a) for covering the top of said mounting base plate (2) and decorative plate (1), said water-impermeable top cover (2 a) comprising a block of plastic material.

4. A multi-functional panel according to claim 3, characterized in that said watertight header (2 a) has an arched top surface (21 a) and a wall-engaging surface (22 a) for engaging with a wall; arc top surface (21 a) is the downwarping from being close to the wall end to keeping away from the wall end, be provided with a plurality of vertical guiding gutters (23 a) on wall binding face (22 a), every vertical guiding gutter (23 a) correspond and set up one have vertical water drainage tank (1 a) and communicate with each other with this vertical water drainage tank (1 a), still be provided with on wall binding face (22 a) and be used for wearing to establish threading hole (24 a) of electrical heating device (5) circular telegram line, be provided with the sealing washer in threading hole (24 a).

5. A multi-functional panel according to claim 2, characterized in that said horizontal heat dissipation channels (61) are provided with a water absorbing layer (7) allowing the passage of hot air in the heat dissipation chamber (3), said water absorbing layer (7) comprising a sponge layer.

6. A multi-functional panel according to claim 1, characterized in that said electric heating means (5) comprises a heating net (51) in a net shape, an upper mounting end (52) and a lower mounting end (53) for mounting the upper and lower ends of said heating net (51), respectively, and a sealing plate (53) connected to the upper end of said upper mounting end (52) for sealing the entrance of said heat dissipation chamber (3).

7. A multifunctional wall panel according to claim 6, characterized in that the upper end face of the mounting base plate (2) is further provided with a sunken mounting cavity (9) for erecting the sealing plate (53) and having the same cross-sectional shape as the heat dissipation cavity (3), and the horizontal projection of the heat dissipation cavity (3) falls into the horizontal projection of the sunken mounting cavity (9).

8. A multi-functional panel according to claim 6, wherein said closure panel (53) comprises an intermediate heat insulating panel (531), a second heat conducting panel (532) disposed against the periphery of said intermediate heat insulating panel (531), and an outer heat insulating panel (533) disposed on the upper end of said intermediate heat insulating panel (531) and said second heat conducting panel (532), said second heat conducting panel (532) being in contact with said first heat conducting panel (4).

9. A multi-functional panel according to claim 6, wherein said upper mounting end (52) and said lower mounting end (53) are both bar-shaped blocks.

10. A multi-functional panel according to claim 6, characterized in that said first plate (4) at the bottom of said chamber (3) is provided with fixing means (0) for fixing said lower mounting end (53); fixing device (0) is including setting up side fixed block (01) of lower installation end (53) both sides, side fixed block (01) are close to another the side of side fixed block (01) is the inclined plane, two the inclined plane on side fixed block (01) forms the fixed mouth that the top-down opening diminishes gradually.

Technical Field

The invention relates to the technical field of multifunctional wall panels, in particular to a multifunctional wall panel.

Background

The multifunctional wall panel is an important indoor decoration object; the multifunctional wall panel can be foamed, expanded and mildewed when meeting water, the service life of the multifunctional wall panel is shortened, and the replacement cycle is fast. In the south of china, the rainwater is many, and especially summer, weather variation is fast, can appear suddenly raining, and this has the user of multi-functional dado to some interior decoration, is very unfavorable, especially does not adorn to under the condition of indoor top surface at multi-functional dado upper end, that is to say that multi-functional dado top exposes the wall, and the rainwater wafts under blowing of strong wind easily indoorly, can drench on multi-functional dado and the wall in a large number.

At present to the installation of the multi-functional dado of whole wall, it forms to be a plurality of multi-functional dado concatenations usually, inevitable existence concatenation clearance or gap, when indoor meetting a large amount of rainwater and hitting multi-functional dado, have a certain amount of rainwater can follow and get into and trickle downwards along the wall and permeate constantly in the trickle in the concatenation gap, and along with the continuation of rainwater drench, the infiltration range is wide can become more and more wide, the wet area of wall can be more and more wide, make the multi-functional dado foaming inflation of pasting the wall installation, reduce the life of multi-functional dado.

Disclosure of Invention

In order to overcome the defects, the invention aims to provide the multifunctional wall panel which is relatively low in water seepage speed, high in dehumidification speed, high in safety performance and long in service life.

The technical scheme for solving the technical problem is as follows:

a multifunctional wall panel comprises a decorative plate body and a mounting substrate connected with the decorative plate body, wherein the mounting substrate is attached to a wall body and connected with the wall body; the upper end surface of the mounting substrate is provided with a heat dissipation cavity which extends downwards and has a square cross section, the peripheral cavity walls and the cavity bottom of the heat dissipation cavity are respectively provided with a first heat conduction plate, and an electric heating device is arranged in the heat dissipation cavity; the heat dissipation cavity is provided with a plurality of heat dissipation holes close to the wall of the wall body, the heat dissipation holes are communicated with the side surface of the mounting substrate close to the wall surface, and communication holes communicated with the heat dissipation holes are correspondingly formed in a first heat conduction plate connected with the wall with the heat dissipation holes; the side surface of the mounting substrate, which is close to the wall body, is provided with a plurality of vertical drainage grooves extending from top to bottom; the vertical drainage channel and the heat dissipation holes are intersected.

In this embodiment, when the rainwater hit multi-functional dado, a certain amount of rainwater can flow to the wall from the concatenation gap or the clearance of the especially adjacent multi-functional dado from top to bottom of adjacent multi-functional dado junction, at this moment, lead ground through vertical water drainage tank with the rainwater fast, the infiltration rate of rainwater top-down on the wall has been reduced, and simultaneously, the rainwater flows through from vertical water drainage tank, can produce certain infiltration to the wall that vertical water drainage tank corresponds and the periphery of this wall, but this infiltration is because the quick derivation of rainwater, the infiltration rate is comparatively slow. In general, the vertical drainage channel is arranged, so that the penetration range is small; at the moment, the electric heating device can quickly generate heat, the first heat conducting plate can conduct heat to heat the mounting substrate and the wall, the dehumidification speed is high,

in addition, further increase the thermal giving off in the heat dissipation chamber through the louvre for the dehumidification to the wall, also prevented simultaneously that heat from piling up in the heat dissipation chamber from causing the incident, increase the security performance, improve the life of whole multi-functional dado, in addition, because the existence of vertical water drainage tank itself, can accelerate thermal flow, improve dehumidification efficiency.

Preferably, the heat dissipation holes comprise horizontal heat dissipation channels communicated with the heat dissipation cavity and inclined heat dissipation channels which are connected with the horizontal heat dissipation channels and extend obliquely downwards, and the inclined heat dissipation channels are intersected with the vertical drainage grooves. This setting prevents that the rainwater from flowing through when the vertical drainage tank is gone through fast, enters into the heat dissipation chamber from the louvre and remains in electric heater unit, burns out when preventing electric heater unit start-up.

Preferably, the mounting base plate further comprises a water seepage prevention top cover used for covering the top of the mounting base plate and the decorative plate body, and the water seepage prevention top cover comprises a plastic block body. This arrangement prevents rainwater from penetrating into the mounting board from the upper end surface of the mounting board.

Preferably, the water seepage prevention top cover is provided with an arc-shaped top surface and a wall attaching surface used for attaching to a wall; the arc top surface is the downwarping from being close to the wall end to keeping away from the wall end, be provided with a plurality of vertical guiding gutters on the wall binding face, every vertical guiding gutter corresponds and sets up one and has vertical water drainage tank and communicate with each other with this vertical water drainage tank, still be provided with on the wall binding face and be used for wearing to establish the through wires hole of electric heater unit circular telegram line, be provided with the sealing washer in the through wires hole. This setting, on the one hand, the arc top surface prevents effectively that the gap of two upper and lower multi-functional dado junctions from flowing into the wall body in the rainwater, reinforcing water-proof effects, on the other hand, even partial rainwater flows into the wall body along the gap, and back discharge in the vertical drainage tank is guided the rainwater by vertical guiding gutter improves multi-functional dado's life.

Preferably, the bottom of the mounting substrate and the bottom of the decorative plate body are provided with top cover matching grooves matched with the water seepage prevention top cover. This setting effectively prevents that the gap of two multi-functional dado junctions about the rainwater from flowing into the wall body, improves the life of multi-functional dado.

Preferably, the horizontal projection of the vertical drainage channel falls into the horizontal projection of the vertical water chute. This setting guarantees that the rainwater can not flow into mounting substrate's heat dissipation chamber from junction between the two when flowing to vertical water drainage tank from vertical guiding gutter, is favorable to improving the life of multi-functional dado.

Preferably, a water absorption layer allowing hot air in the heat dissipation cavity to pass through is arranged in the horizontal heat dissipation channel, and the water absorption layer comprises a sponge layer.

On the one hand, the sponge layer has good water absorption performance, under the state that electric heater unit did not open, can prevent that the moisture on the wall from getting into the heat dissipation chamber and remaining on electric heater unit, thereby cause electric heater unit to meet incident such as water emergence burning, increase the security performance, guarantee the life of multi-functional dado, another convenience, after electric heater unit opens, moisture on the sponge layer can evaporate, the sponge layer after the moisture evaporation resumes the ability of absorbing water, the layer that absorbs water can cyclic utilization, improve the life of multi-functional dado.

Preferably, the electric heating device comprises a heating net in a net shape, an upper mounting end and a lower mounting end which are respectively used for mounting the upper end and the lower end of the heating net, and a sealing plate which is connected with the upper end surface of the upper mounting end and is used for sealing the inlet of the heat dissipation cavity.

This electric heater unit has and seals the board, prevents that the heat in the heat dissipation chamber from giving off from heat dissipation chamber entrance when electric heater unit starts, improves thermal utilization ratio for dehumidification speed.

Preferably, the upper end face of the mounting substrate is further provided with a sunken mounting cavity which has the same cross section shape as the heat dissipation cavity and is used for erecting the sealing plate, and the horizontal projection of the heat dissipation cavity falls into the horizontal projection of the sunken mounting cavity. This setting guarantees that electric heater unit is convenient installs fast on mounting substrate.

Preferably, the sealing plate comprises a middle heat insulation plate, a second heat conduction plate arranged along the periphery of the middle heat insulation plate, and an outer heat insulation plate arranged on the upper end surface of the middle heat insulation plate and the upper end surface of the second heat conduction plate, and the second heat conduction plate is in contact with the first heat conduction plate. This setting, outside heat insulating board had both improved thermal utilization ratio, and the heat passes through first heat-conducting plate to the transmission of second heat-conducting plate simultaneously, then with heat transfer to peripheral mounting substrate inside, carries out reasonable distribution to heat transfer to the at utmost, also says that, can guarantee that most of heats can transmit the wall through first heat-conducting plate and louvre.

Preferably, the upper mounting end and the lower mounting end are both strip-shaped blocks.

Preferably, a fixing device for fixing the lower mounting end is arranged on the first heat conducting plate positioned at the bottom of the heat dissipation cavity; the fixing device comprises side fixing blocks arranged on two sides of the lower mounting end, the side face, close to the other side fixing block, of each side fixing block is an inclined face, and the inclined faces on the two side fixing blocks form fixing openings with openings gradually reduced from top to bottom.

In conclusion, the invention has the following beneficial effects: the water seepage speed is low, the dehumidification speed is high, the safety performance is high, and the service life is long.

Drawings

For ease of illustration, the present invention is described in detail by the following preferred embodiments and the accompanying drawings.

FIG. 1 is a schematic block diagram of the construction of a multi-functional panel according to an embodiment of the present invention;

FIG. 2 is a schematic block diagram of another perspective of a multi-functional panel according to an embodiment of the present invention;

FIG. 3 is a schematic view of the installation of the first heat-conducting plate;

FIG. 4 is a schematic cross-sectional view of a multi-functional panel;

FIG. 5 is a schematic diagram of the structure of the sealing plate;

figure 6 is an assembly schematic of a multi-functional panel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1 to 6, the multifunctional wall panel of the present invention comprises a decorative panel body 1 and a mounting substrate 2 connected with the decorative panel body 1, wherein the mounting substrate 2 is attached to and connected with a wall body, the upper end surface of the mounting substrate 2 is provided with a heat dissipation cavity 3 extending downward and having a square cross section, the peripheral cavity wall and the cavity bottom of the heat dissipation cavity 3 are both provided with a first heat conduction plate 4, and an electric heating device 5 is arranged in the heat dissipation cavity 3; the heat dissipation cavity 3 is provided with a plurality of heat dissipation holes 6 on the wall surface close to the wall body, the heat dissipation holes 6 are communicated with the side surface of the mounting substrate 2 close to the wall surface, the number of the heat dissipation holes 6 is determined according to the actual situation and is not particularly limited, and the first heat conduction plate 4 connected with the wall surface with the heat dissipation holes 6 is correspondingly provided with communication holes 8 communicated with the heat dissipation holes 6; the side surface of the mounting substrate 2, which is close to the wall body, is provided with a plurality of vertical drainage grooves 1a extending from top to bottom; the vertical drainage channel 1a and the heat dissipation hole 6 meet each other.

When meeting a large amount of rainwater when hitting wall and multi-functional dado indoor, the rainwater generally top-down permeates gradually to the wall infiltration can be more drastic, and along with lasting of rainwater drenches, and the infiltration scope is wide, and moisture is sufficient in the wall, causes the harm to multi-functional dado easily. In this embodiment, when rainwater hits the wall or the multifunctional wall panel, the rainwater is quickly guided to the ground through the vertical drainage groove 1a, so that the permeation rate of the wall from top to bottom is reduced, and meanwhile, the rainwater flows through the vertical drainage groove 1a and can permeate the wall corresponding to the vertical drainage groove 1a and the periphery of the wall to a certain extent, but the permeation rate is relatively slow due to quick guiding-out of the rainwater. In general, the vertical drainage grooves 1a are provided, and the penetration range is small. At this moment, through electric heater unit, produce heat fast, heat conduction through first heat-conducting plate, heat mounting substrate and wall, it is fast to dehumidify, in addition, further increase the radiating cavity thermal dissipation through the louvre and give off, accelerate the dehumidification to the wall, thermal piling up caused the incident in the radiating cavity has also been prevented simultaneously, the security performance is increased, the life of whole multi-functional dado is improved, in addition, because vertical water drainage tank 1 a's existence, can accelerate thermal flow, the efficiency of dehumidification is improved.

Preferably, the heat dissipation hole 6 includes a horizontal heat dissipation channel 61 communicating with the heat dissipation chamber 3 and an inclined heat dissipation channel 62 connected to the horizontal heat dissipation channel 61 and extending obliquely downward, and the inclined heat dissipation channel 62 meets the vertical drainage channel 1 a. This setting prevents that the rainwater from flowing through when the vertical drainage groove 1a is passed through fast, enters into heat dissipation chamber 3 and remains in electric heater unit 5 from the louvre 6, burns out when preventing electric heater unit 5 from starting.

Preferably, the multifunctional wall panel of the present application further comprises a water-proof top cover 2a for covering the top of the mounting substrate 2 and the decorative panel body 1, wherein the water-proof top cover 2a comprises a plastic block. This arrangement prevents rainwater from penetrating into the mounting board 2 from the upper end surface of the mounting board 2. The plastic block body and the mounting substrate 2 can be connected in a clamping manner through the clamping piece, can also be connected in a splicing manner through the splicing column, and can also be connected through two-sided glue.

The water seepage prevention top cover 2a is provided with an arc-shaped top surface 21a and a wall attaching surface 22a for attaching to a wall; arc top surface 21a is the downwarping from being close to the wall end to keeping away from the wall end, be provided with a plurality of vertical guiding gutters 23a on the wall binding face 22a, every vertical guiding gutter 23a corresponds and sets up one and has vertical water drainage tank 1a and communicate with each other with this vertical water drainage tank 1a, still be provided with on the wall binding face 22a and be used for wearing to establish the through wires hole 24a of 5 electrical wires of electric heater unit, be provided with the sealing washer in the through wires hole 24 a. The sealing rings are not shown in the drawings. Correspondingly, the bottom of the mounting substrate 2 and the decorative plate body 1 is provided with a top cover matching groove 3a matched with the water seepage prevention top cover 2 a. This setting, on the one hand, during arc top surface 21a effectively prevented that the gap of two upper and lower multi-functional dado junctions from flowing into the wall body in the rainwater, reinforcing water-proof effects, on the other hand, even partial rainwater flows into the wall body along the gap, discharges after in vertical water drainage tank 1a is guided the rainwater by vertical guiding gutter 23a, improves multi-functional dado's life.

Preferably, the bottom of the mounting substrate 2 is provided with a top cover fitting groove 3a which is fitted with the water seepage prevention top cover 2 a. This setting effectively prevents that the gap of two multi-functional dado junctions about the rainwater from flowing into the wall body, improves the life of multi-functional dado.

Preferably, the horizontal projection of the vertical drainage channel 1a falls into the horizontal projection of the vertical water chute 23 a.

This setting guarantees that the rainwater can not flow into the heat dissipation chamber 3 of mounting substrate 2 from junction between the two when flowing to vertical water drainage tank 1a from vertical guiding gutter 23a, is favorable to improving the life of multi-functional dado.

Preferably, the horizontal heat dissipation channel 61 is provided with a water absorption layer 7 for allowing hot air in the heat dissipation cavity 3 to pass through, and the water absorption layer 7 comprises a sponge layer.

On the one hand, sponge layer 7 has good water absorption performance, under the state that electric heater unit 5 was not opened, can prevent that the moisture on the wall from getting into heat dissipation chamber 3 and remaining on electric heater unit 5, thereby cause electric heater unit 5 to meet incident such as water emergence burning, increase the security performance, guarantee the life of multi-functional dado, another convenience, after electric heater unit 5 opened, moisture on the sponge layer can evaporate, the sponge layer after the moisture evaporation resumes water absorption capacity, the layer that absorbs water can cyclic utilization, the life of improvement dado.

Preferably, the electric heating device 5 includes a heating net 51 in a net shape, an upper mounting end 52 and a lower mounting end 53 for mounting the upper and lower ends of the heating net 51, respectively, and a sealing plate 53 connected to the upper end surface of the upper mounting end 52 for sealing the inlet of the heat dissipation chamber 3. The electric heating device 5 is provided with the sealing plate 53, so that the heat in the heat dissipation cavity 3 is prevented from being dissipated from the inlet of the heat dissipation cavity when the electric heating device 5 is started, the heat utilization rate is improved, and the dehumidification speed is accelerated. Preferably, the upper end surface of the sealing plate 53 is flush with the upper end surface of the mounting substrate 2.

Preferably, the upper end face of the mounting substrate 2 is further provided with a sunken mounting cavity 9 which has the same cross-sectional shape as the heat dissipation cavity 3 and is used for erecting the sealing plate 53, and the horizontal projection of the heat dissipation cavity 3 falls into the horizontal projection of the sunken mounting cavity 9. This setting guarantees that electric heater unit 5 is convenient quick to be installed on mounting substrate, only need put in the installation cavity 9 that sinks can.

Preferably, the sealing plate 53 includes a middle heat insulation plate 531, a second heat conduction plate 532 disposed to adhere to the periphery of the middle heat insulation plate 531, and an outer heat insulation plate 533 disposed on the upper end surfaces of the middle heat insulation plate 531 and the second heat conduction plate 532, and the second heat conduction plate 532 contacts with the first heat conduction plate 4. This setting, outside heat insulating board 533 had both improved thermal utilization ratio, and the heat passes through first heat-conducting plate 4 to the transmission of second heat-conducting plate 532 simultaneously, then with heat transfer to peripheral mounting substrate inside, carries out reasonable distribution to heat transfer to the at utmost, also says that, can guarantee that most of heats can transmit the wall through first heat-conducting plate 4 and louvre 6.

Preferably, the upper mounting end 52 and the lower mounting end 53 are bar-shaped blocks.

Preferably, a fixing device 0 for fixing the lower mounting end 53 is arranged on the first heat conducting plate 4 at the bottom of the heat dissipation cavity 3; the fixing device 0 comprises side fixing blocks 01 arranged on two sides of the lower mounting end 53, the side face, close to the other side fixing block 01, of each side fixing block 01 is an inclined face, and the inclined faces on the two side fixing blocks 01 form fixing openings with openings gradually reduced from top to bottom. This setting further prevents rocking of electric heater unit 5, indirectly improves the life of multi-functional dado.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.