Steam iron

Abstract

The utility model discloses a steam iron which comprises a seat body, a bottom plate assembled at the bottom of the seat body and used for ironing clothes or fabrics, a steam inlet assembly arranged on the seat body and an electric heating pipe at least partially embedded in the seat body. A first labyrinth type flow channel is formed between the base body and the bottom plate, a protruding part is formed on the base body in a protruding mode, the steam inlet assembly is installed on one side of the protruding part, a second labyrinth type flow channel communicated with the first labyrinth type flow channel is formed in the protruding part, and at least one steam outlet communicated to the tail end of the first labyrinth type flow channel is further formed in the base body. A water vapor mixture passing through the steam inlet assembly sequentially passes through the second labyrinth type flow channel and the first labyrinth type flow channel to flow out of the steam outlet, and the electric heating pipe is used for heating the water vapor mixture flowing through the first labyrinth type flow channel and the second labyrinth type flow channel. According to the technical scheme, the vaporization path can be enlarged on the premise that the vaporization cavity is not enlarged, and the vaporization efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ironing equipment technical field especially relates to a steam iron. BACKGROUND

[0002] The steam iron mainly includes two kinds of integrated steam iron and iron accessory as garment steamer, and it generally includes main body, bottom plate, steam inlet component, electric heating tube, and the components for water supply and steam supply include water tank, water pump and steam generating device, which can be arranged on the main body or in the main machine of the garment steamer. At the same time, a horizontal vaporization cavity is generally formed in the main body, the water vapor mixture in the vaporization cavity is vaporized and heated by the electric heating tube, and the heat is conducted to the bottom plate, or a plurality of small holes are arranged on the bottom plate to spray downward, in order to improve the vaporization efficiency, a labyrinth flow channel structure is generally arranged in the vaporization cavity, and the electric heating tube is designed as a 'U' shape or a coil shape, so that the water vapor mixture in the vaporization cavity is heated and vaporized uniformly. However, the overall size of the main body limits the size of the vaporization cavity, so that the vaporization efficiency in the labyrinth flow channel is limited, and the vaporization efficiency of the whole machine is limited. Therefore, it is expected to further improve the vaporization efficiency without increasing the size of the main body of the iron. SUMMARY

[0003] In view of the above problems existing in the prior art, the present application provides a steam iron which can increase the vaporization path without increasing the size of the vaporization cavity, effectively improve the vaporization efficiency, and overcome at least one of the above technical defects.

[0004] The specific technical solutions are as follows:

[0005] A steam iron includes a seat body, a bottom plate assembled at the bottom of the seat body and used for ironing clothes or fabrics, a steam inlet assembly arranged on the seat body, and an electric heating tube at least partially embedded in the seat body.

[0006] A first labyrinth flow channel is formed between the seat body and the bottom plate, a protruding portion is formed on the seat body, the steam inlet assembly is installed on one side of the protruding portion, a second labyrinth flow channel is formed in the protruding portion and connected to the first labyrinth flow channel, at least one steam outlet is provided on the seat body and connected to the end of the first labyrinth flow channel, so that the water vapor mixture passing through the steam inlet assembly flows out from the steam outlet through the second labyrinth flow channel and the first labyrinth flow channel in sequence, and the electric heating tube is used to heat the water vapor mixture flowing through the first labyrinth flow channel and the second labyrinth flow channel.

[0007] Preferably, the seat body has a first vaporization cavity which is open in the direction facing the bottom plate, and the first vaporization cavity has a plurality of first rib plates extending in the downward direction, the upper surface of the bottom plate has a plurality of second rib plates which are adapted to the shape of the first rib plates and are opposite to the first rib plates, and the first labyrinth flow channel is formed by the first rib plates and the second rib plates.

[0008] Preferably, the protruding portion is provided with a second vaporization cavity which is open in the forward direction, and the steam inlet assembly includes an end cover which covers the open end of the second vaporization cavity, and a steam inlet connector which is arranged on the end cover and is connected to an external steam supply device to supply steam.

[0009] Preferably, the second vaporization cavity is arranged in the longitudinal direction, and the steam outlet of the second vaporization cavity is located above the starting position of the first labyrinth flow channel.

[0010] Preferably, the first rib plate includes a first plate block which surrounds the steam outlet of the second vaporization cavity and has a "H" shape, a second plate block which is located in the middle of the opening of the first plate block and has an arc shape, a third plate block which surrounds the outside of the first plate block and has a "U" shape, and a fourth plate block which is located in the middle of the opening of the third plate block and has an arc shape.

[0011] The opening of the third plate block is gradually narrowed and the opening direction is opposite to that of the first plate block, so that the inner wall of the third plate block and the outer wall of the first plate block, and the outer wall of the third plate block and the inner wall of the first vaporization cavity form two flow channels respectively.

[0012] Preferably, the steam outlet is provided with two steam outlets which are connected to the two flow channels formed between the outer wall of the third plate block and the inner wall of the first vaporization cavity.

[0013] Preferably, the second vaporization cavity is provided with a plurality of third rib plates which are arranged in the forward direction, and the second labyrinth flow channel is formed in the second vaporization cavity by the third rib plates.

[0014] Preferably, the third rib plate includes a fifth plate block which extends horizontally and is located below the steam outlet of the steam inlet connector, and two sixth plate blocks which are arranged on the left and right sides of the fifth plate block in an "8" shape, and the two sixth plate blocks and the fifth plate block have gaps therebetween, so that the steam mixture entering the second vaporization cavity is first divided into three parts by the third rib plate, and is preliminarily vaporized in the second vaporization cavity and then enters the first vaporization cavity.

[0015] Preferably, the middle part of the electric heating pipe is bent into a horizontal "V" shape, and the two connector ends extend in the upward direction, and the middle part of the electric heating pipe is used to vaporize the steam mixture in the first labyrinth flow channel, and the two connector ends and the longitudinally extending part of the electric heating pipe are used to vaporize the steam mixture in the second labyrinth flow channel.

[0016] Preferably, the seat body is provided with a channel for accommodating the electric heating pipe, and the two connector ends of the electric heating pipe at least partially protrude above the upper end surface of the protruding portion.

[0017] The technical scheme has the following beneficial effects:

[0018] The steam iron comprises a seat body, a bottom plate, a steam inlet assembly, and an electric heating tube, the seat body is internally configured with a first labyrinth flow channel and a second labyrinth flow channel, the electric heating tube heats and promotes vaporization of a water-steam mixture in the two labyrinth flow channels, the vaporization path can be increased without increasing the vaporization cavity, and the vaporization efficiency is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of the steam iron of the utility model;

[0020] Figure 2 It is a sectional view of the steam iron of the utility model;

[0021] Figure 3 It is an exploded view of the steam iron of the utility model;

[0022] Figure 4 It is a perspective view of the steam iron of the utility model after the bottom plate is removed;

[0023] Figure 5 It is a perspective view of the steam iron of the utility model after the steam inlet assembly is removed;

[0024] Figure 6 It is a perspective view of the steam iron of the utility model after the seat body is removed. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is specifically described below in combination with the drawings. And the following definitions are defined as Figure 2 The up-down direction shown in the drawings is the up-down direction in the embodiment, and the left-right direction shown in the drawings is the front-rear direction in the embodiment. Figure 2 And Figure 4 The direction of the arrow shown in the drawings is the water-steam mixture flow direction in the embodiment.

[0026] Referring to Figures 1 to 6 The steam iron provided by the embodiment comprises a seat body 1, a bottom plate 2 assembled at the bottom of the seat body 1 and used for ironing clothes or fabrics, a steam inlet assembly 4 arranged on the seat body 1, and an electric heating tube 3 at least partially embedded in the seat body 1; wherein,

[0027] The first labyrinth flow channel is formed between the seat body 1 and the bottom plate 2. The seat body 1 is formed with a protruding portion 10 protruding upward. The steam inlet assembly 4 is installed on one side of the protruding portion 10. The protruding portion 10 is formed with a second labyrinth flow channel connected with the first labyrinth flow channel. The seat body 1 is further formed with at least one steam outlet 19 connected with the end of the first labyrinth flow channel. The water vapor mixture passing through the steam inlet assembly 4 flows through the second labyrinth flow channel and the first labyrinth flow channel and then flows out of the steam outlet 19. The electric heating tube 3 is used to heat the water vapor mixture flowing through the first and second labyrinth flow channels.

[0028] Based on the above technical scheme, the steam iron includes the seat body 1, the bottom plate 2, the steam inlet assembly 4, and the electric heating tube 3. The seat body 1 is formed with the first and second labyrinth flow channels. The electric heating tube 3 heats and vaporizes the water vapor mixture in the two labyrinth flow channels. The vaporization path is increased without increasing the vaporization cavity, and the vaporization efficiency is effectively improved.

[0029] In a preferred embodiment, the seat body 1 is formed with a first vaporization cavity 11 open to the bottom plate 2. The first vaporization cavity 11 is formed with a plurality of first ribs extending downward. The upper end surface of the bottom plate 2 is formed with a plurality of second ribs corresponding to the first ribs. The first and second ribs jointly form the first labyrinth flow channel.

[0030] In a preferred embodiment, the protruding portion 10 is formed with a second vaporization cavity 12 open to the front. The steam inlet assembly 4 includes an end cover 41 covering the open end of the second vaporization cavity 12 and a steam inlet connector 42 penetrating through the end cover 41. The steam inlet connector 42 is connected with an external water vapor supply device to supply the water vapor mixture. Further, the second vaporization cavity 12 extends in the longitudinal direction. The steam outlet 19 of the second vaporization cavity 12 is located above the starting position of the first labyrinth flow channel.

[0031] As a further preferred embodiment, the first rib plate comprises a first plate 13 in the shape of a "H" surrounding the steam outlet 19 of the second vaporization cavity 12, a second plate 14 in the shape of an arc located in the middle of the opening of the first plate 13, a third plate 15 in the shape of a "U" surrounding the outside of the first plate 13, and a fourth plate 16 in the shape of an arc located in the middle of the opening of the third plate 15. The opening of the third plate 15 is gradually tapered and the direction of the opening is opposite to that of the first plate 13. The inner wall of the third plate 15 and the outer wall of the first plate 13 form two flow channels, respectively, so that the water-vapor mixture fed into the first vaporization cavity 11 is divided and more easily vaporized, thus achieving a higher vaporization efficiency. Further, the steam outlet 19 is provided with two outlets, which are connected to the two flow channels formed between the outer wall of the third plate 15 and the inner wall of the first vaporization cavity 11.

[0032] As a further preferred embodiment, the second vaporization cavity 12 has a plurality of third rib plates extending in the forward direction, and the second labyrinth flow channel is formed by the third rib plates in the second vaporization cavity 12. Further, the third rib plate comprises a fifth plate 17 extending horizontally and located below the steam outlet of the steam inlet connector 42, and two sixth plates 18 arranged in the shape of an "8" on the left and right sides above the fifth plate 17. The two sixth plates 18 and the fifth plate 17 have gaps therebetween, so that the water-vapor mixture entering the second vaporization cavity 12 is first divided into three parts by the third rib plate, and after being preliminarily vaporized in the second vaporization cavity 12, enters the first vaporization cavity 11, effectively improving the vaporization efficiency.

[0033] In a preferred embodiment, in combination with the above-mentioned Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 , the middle portion 31 of the electric heating tube 3 is bent into a horizontal "V" shape, and the two connector ends 32 extend in the upward direction. The middle portion 31 of the electric heating tube 3 is used to vaporize the water-vapor mixture in the first labyrinth flow channel, and the two connector ends 32 and the vertically extending portion of the electric heating tube 3 are used to vaporize the water-vapor mixture in the second labyrinth flow channel. Further, the seat body 1 has a channel for accommodating the electric heating tube 3, and the two connector ends 32 of the electric heating tube 3 at least partially protrude above the upper end surface of the convex portion 10 in the upward direction, so as to be connected to the power supply assembly inside or outside the steam iron.

[0034] In addition, the steam iron further comprises an outer casing (not shown in the figure) covering the seat body 1, and the outer casing can accommodate therein a water vapor supply device, a circuit board, a control panel or buttons, wherein the water vapor supply device should comprise a water tank, a water pump and a steam generating device, which can be arranged in the outer casing or arranged in an external ironing host, for example, the steam iron is designed as an accessory ironing component of a wired steamer, and correspondingly, the control part described above can also be designed in the external ironing host, which is a conventional technology in the art and is not the main innovation point of the present scheme, and thus is omitted here.

[0035] Based on the above, two vaporization cavities distributed horizontally and vertically are formed in the seat body 1, and a labyrinth flow channel is formed in each of the two vaporization cavities, so that the utilization rate of the electric heating tube 3 is higher, and the vaporization effect is better.

[0036] The above is only the preferred embodiment of the present application, which is only illustrative but not limiting. It is understood by those skilled in the art that many changes, modifications and even equivalents can be made to the present application within the spirit and scope of the claims of the present application, but all will fall within the protection scope of the present application.

Claims

1. A steam iron, comprising a base body (1), a bottom plate (2) assembled at the bottom of the base body (1) for ironing clothes or fabrics, a steam inlet assembly (4) provided on the base body (1), and an electric heating tube (3) at least partially embedded in the base body (1); characterized in that, a first labyrinth flow channel is formed between the base body (1) and the bottom plate (2), a convex portion (10) is formed on the base body (1), the steam inlet assembly (4) is installed on one side of the convex portion (10), and a second labyrinth flow channel communicating with the first labyrinth flow channel is formed in the convex portion (10), and at least one steam outlet (19) communicating with the end of the first labyrinth flow channel is further opened on the base body (1), so that the water-vapor mixture passing through the steam inlet assembly (4) flows out from the steam outlet (19) through the second labyrinth flow channel and the first labyrinth flow channel in sequence, and the electric heating tube (3) is used to heat the water-vapor mixture flowing through the first labyrinth flow channel and the second labyrinth flow channel.

2. A steam iron as claimed in claim 1, wherein the steam generator is located in the handle portion of the iron. A first vaporization cavity (11) with an opening facing the bottom plate (2) is provided in the base body (1), and a plurality of first rib plates extending downward are provided in the first vaporization cavity (11), and a plurality of second rib plates with shapes adapted to and positions opposite to those of the first rib plates are provided on the upper end surface of the bottom plate (2), and the first labyrinth flow channel is jointly surrounded by the first rib plates and the second rib plates.

3. A steam iron as claimed in claim 2, wherein the steam generator is located in the handle portion of the iron. A second vaporization cavity (12) with an opening facing forward is formed in the convex portion (10), the steam inlet assembly (4) includes an end cover (41) covering the open end of the second vaporization cavity (12) and a steam inlet joint (42) penetrating through the end cover (41), and the steam inlet joint (42) is connected to an external water-vapor supply device for feeding a water-vapor mixture.

4. A steam iron as claimed in claim 3, wherein the steam generator is located in the handle portion of the iron. The second vaporization cavity (12) extends longitudinally as a whole, and the steam outlet (19) of the second vaporization cavity (12) is located above the starting position of the first labyrinth flow channel.

5. A steam iron as claimed in claim 4, wherein the steam generator is located in the handle portion of the iron. The first rib plate includes a first plate (13) in a "冂" shape surrounding the steam outlet (19) of the second vaporization cavity (12), a second plate (14) in an arc shape located in the middle of the opening position of the first plate (13), a third plate (15) in a "U" shape surrounding the outside of the first plate (13), and a fourth plate (16) in an arc shape located in the middle of the opening position of the third plate (15); The opening of the third plate (15) gradually converges and the opening direction is opposite to that of the first plate (13), so that two flow channels are respectively formed between the inner wall of the third plate (15) and the outer wall of the first plate (13) and between the outer wall of the third plate (15) and the inner wall of the first vaporization cavity (11).

6. A steam iron as claimed in claim 5, wherein the steam generator is located in the handle portion of the iron. The steam outlets (19) are provided in two numbers and are respectively connected to the ends of the two flow channels formed between the outer wall of the third plate (15) and the inner wall of the first vaporization cavity (11).

7. A steam iron as claimed in claim 4, wherein the steam generator is located in the handle. The second vaporization cavity (12) has a plurality of third baffle plates formed in the forward direction, and the second labyrinth flow channel is formed by the third baffle plates in the second vaporization cavity (12).

8. A steam iron as claimed in claim 7, wherein the steam generator is located in the handle. The third baffle plates include a fifth plate (17) horizontally extending and located below the steam outlet opening of the steam inlet joint (42), two sixth plates (18) arranged in "8" shape on the left and right sides above the fifth plate (17), and gaps between the two sixth plates (18) and the fifth plate (17), so that the water vapor mixture entering the second vaporization cavity (12) is first divided into three parts by the third baffle plates, and after being preliminarily vaporized in the second vaporization cavity (12), enters the first vaporization cavity (11).

9. The steam iron of claim 4, wherein, The middle part (31) of the electric heating pipe (3) is bent into a horizontal "V" shape, and the two joint ends (32) extend in the longitudinal upward direction, and the middle part (31) of the electric heating pipe (3) is used to vaporize the water vapor mixture in the first labyrinth flow channel, and the two joint ends (32) and the longitudinal extension part of the electric heating pipe (3) are used to vaporize the water vapor mixture in the second labyrinth flow channel.

10. A steam iron as claimed in claim 9, wherein the steam generator is located in the handle portion of the iron. The seat body (1) is provided with a channel for accommodating the electric heating pipe (3), and the two joint ends (32) of the electric heating pipe (3) at least partially protrude upward from the upper end surface of the protruding portion (10).

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