TW201938943A - Water supply soft tube and washing machine characterized in that the water supply soft tube can be appropriately mounted on a washing machine to prevent water leakage - Google Patents

Abstract

To provide a water supply soft tube which can be appropriately mounted to a washing machine and also provide a washing machine equipped with the same. A water supply soft tube is equipped with a soft tube portion connected to the male screw portion (42) disposed at the water supply valve (40) of a washing machine. The soft tube portion is equipped with the coupling member (30). The coupling member (30) is provided with a female screw portion (36) engaged with the male screw portion (42). The length of the axial direction G of the female screw portion (36) from the thread portion (36A) of the starting end to the front end (38) is formed to be longer than the length of the axial direction G of the male screw portion (42) from the thread portion (42A) of the starting end to the front end portion (41).

Description

Water supply hose and washing machine

The present invention relates to a water supply hose and a washing machine provided with the water supply hose.

Patent Document 1 is provided with a ring-shaped sealing washer member 6 on the inner side of the nut body base portion 4, and an elbow-shaped member 12 is provided with an upper portion on the inner periphery of the sealing washer member 6 Cylindrical ribs 7. [Prior Art Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Application Laid-Open No. 2013-236697 (Figure 2)

[Problems to be Solved by the Invention]

However, the water supply hose described in Patent Document 1 has a structure in which the rib 7 that becomes the elbow 12 is located above the sealing washer member 6 and the screw end portion 11 of the water supply valve 5 is located at the lower side . In the case of such a structure, the sealing gasket member 6 may be displaced or bent in an unexpected direction, and water sealing may not be performed effectively, and water leakage may occur. Fear.

The present invention is a solution to the problems of the prior art, and an object thereof is to provide a water supply hose capable of appropriately installing a water supply hose in a washing machine and a washing machine having the same. [Means to solve the problem]

The present invention is a water supply hose, which is provided with a hose portion connected to a male screw portion of a water supply valve provided at a washing machine, and the hose portion is provided with an associated structural member. The associated structural member has a female screw portion that is screwed with the male screw portion, and the length S2 of the female screw portion in the axial direction from the thread portion at the starting end to the front end is formed to be longer than the male screw portion. The length S1 in the axial direction from the threaded portion at the starting end to the front end is longer. [Effect of the invention]

According to the present invention, it is possible to provide a water supply hose capable of appropriately attaching a water supply hose to a washing machine and a washing machine provided with the same.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. As the washing machine (washer-dryer), various known types can be adopted. For example, the washing machine (washer-dryer) can be applied to a vertical-type washing machine (washer-dryer) and a drum-type washing machine (washer-dryer).

FIG. 1 is a perspective view showing a washing machine provided with a water supply hose according to this embodiment. (1) As shown in FIG. 1, the washing machine 1 includes an external tank, an internal tank, a motor, a dehumidifying means, a heating means (heater), an air supply means (air supply fan), and the like, which are not shown. The outer tank functions as a laundry room and a drying room, and is elastically supported in the frame 11. The inner groove is installed in the outer groove and is driven to rotate by a motor. The dehumidifying means has a function of cooling and dehumidifying the high-temperature and high-humidity air generated during the drying operation. The heating means has the function of heating the air which has been dehumidified during the drying operation. The air supply means has a function of circulating air in the order of heating means, outer tank (inner tank), and dehumidifying means. Although the present embodiment is exemplified as a washing machine 1 with a clothes drying function, it may be a washing machine (so-called fully automatic washing machine) without a clothes drying function.

The washing machine body 10 is provided with a frame 11 constituting an outer contour. A water supply hose connection port 12 and a bath water hose connection port 13 are formed above the frame body 11. The water supply hose connection port 12 and the bath water hose connection port 13 are opened at the rear of the upper cover of the casing 11 and face upward. A water supply valve 40 (refer to a dotted line) is attached to the water supply hose connection port 12. The water supply hose 20 is connected to the water supply valve 40 via the connecting member 30. In addition, FIG. 1 shows a state where the water supply hose 20 is connected to the water supply valve 40 through the water supply hose connection port 12.

The water supply hose 20 includes a hose portion 21, an elbow member 23 provided at an end portion on the downstream side of the hose portion 21, and a joint portion provided at an end portion on the upstream side of the hose portion 21. 22, and a structural member 30 for connecting an end portion on the downstream side of the hose portion 21 and the water supply valve 40 to form it.

The water supply hose 20 supplies tap water (clean water) supplied from the water supply plug 100 to the washing machine body 10. The upstream end portion of the hose portion 21 is connected to the water supply plug 100 via a joint portion 22. The joint portion 22 is a member that connects the other end of the hose portion 21 and the water supply plug 100, and a known member may be used.

The hose portion 21 is formed of a material having flexibility such as vinyl chloride. It can be bent and deformed according to the distance (height) from the water supply hose connection opening 12 to the water supply plug 100. Therefore, if the distance (height) between the washing machine body 10 and the water supply plug 100 is equal to or less than the length of the hose portion 21, the water supply valve 40 can be connected to the water supply plug 100 and the water supply can be supplied from the water supply plug 100. The valve 40 supplies tap water (clean water).

The elbow-shaped member 23 is connected to the end portion on the upstream side with the hose portion 21, and an attachment member 30 is attached to the end portion on the downstream side. The elbow-shaped member 23 is formed by a rigid member made of synthetic resin, and has, for example, a tube shape that is slightly bent at 90 °.

The structural member 30 is formed integrally with a cylindrical portion 31 formed with a female screw portion 36 (see FIG. 2) on an inner peripheral surface and a head portion 32 provided at an upper portion of the cylindrical portion 31. On the outer peripheral surface of the head 32, protrusions 32a for hooking fingers are formed at intervals of 90 ° in the circumferential direction. The connecting structure 30 is rotatably attached to the elbow-shaped member 23.

FIG. 2 is a cross-sectional view showing a state before the water supply hose of the present embodiment is connected to the water supply valve, and FIG. 3 is a view after the water supply hose of the present embodiment is connected to the water supply valve. The cross section of the state is shown. As shown in FIG. 2, at the end portion on the downstream side of the elbow-shaped member 23, a rib (flange) 24 protruding toward the outside in the radial direction is formed. The rib 24 is formed at an end portion of the elbow-shaped member 23, and is formed in a ring shape protruding from the end portion toward the outer diameter direction, and is formed into, for example, a ring shape. The portion on the outer diameter side of the rib 24 overlaps the extension line of the front end portion (front end surface) 41 of the water supply valve 40. With such a structure, both sides of the sealing member 50 in the up-down direction can be sandwiched and pushed in by the rib 24 and the front end portion 41.

The tie structure 30 is configured by including a cylindrical portion 31 and a head portion 32. The structural member 30 includes an inclined portion 33, a locking portion 34, and a recessed portion 35. The central structure 30 has a region on the center side thereof as a gap (flow path), and an end portion on the downstream side of the elbow-shaped member 23 is inserted into the gap.

The head portion 32 is formed to protrude outward in the radial direction than the cylindrical portion 31. The installer can attach the structural member 30 to the water supply valve 40 by holding the head portion 32 and applying a rotational force.

The inclined portion 33 is formed on the upper surface of the head portion 32 of the structural member 30. In addition, the inclined portion 33 is formed in a tapered shape so as to widen in a direction away from the cylindrical portion 31. By forming such an inclined portion 33, the elbow-shaped member 23 can be relatively bent along its shape, and the elbow-shaped member 23 can be easily mounted.

A flange 25 is formed at the elbow-shaped member 23. The flange 25 is positioned in the inclined portion 33. Therefore, when the connecting member 30 is detached from the water supply valve 40, the elbow member 23 and the connecting member 30 can be easily and detached together by bringing the inclined portion 33 into contact with the flange 25. under.

The locking portion 34 is formed so as to be positioned between the rib 24 and the flange 25, and is a portion that contacts the upper portion of the rib 24. Thereby, the rib 24 can be pushed downward by the connecting structure 30 being attached to the water supply valve 40, and the sealing member 50 can be pushed.

The recessed portion 35 is a space that allows the seal member 50 to be positioned closer to the outer diameter side than the front end portion 41 of the water supply valve 40.

The inner peripheral surface of the cylindrical portion 31 is formed so as to be screwed with the male screw portion 42 of the water supply valve 40, and the threads are formed in a spiral shape at an equal pitch (for example, about 2 mm).母 螺 部 36。 The female screw portion 36. A recessed portion 35 is formed between the female screw portion 36 and the locking portion 34. The cylindrical portion 31 is formed with a cylindrical extending portion 37 from the female screw portion 36 toward the front end (downward). The length in the axial direction G of the extension portion 37 is formed to the same extent as the length in the axial direction G of the female screw portion 36. The inner peripheral surface of the extension portion 37 is configured as a surface on which the screw portion is not formed.

On the other hand, the water supply valve 40 includes a cylindrical portion 43, and a male screw portion 42 is formed on the outer peripheral surface of the cylindrical portion 43. A mesh-shaped filter 44 is provided inside the cylindrical portion 43.

The cylindrical portion 43 projects upward from a water supply hose connection port 12 formed in the housing 11. Further, a flange portion 45 is formed in the cylindrical portion 43 so as to be tied to the inside of the housing 11. A washer 46 is provided between the flange portion 45 and the edge portion of the hole of the water supply hose connection port 12. This prevents water from entering the housing 11 from the water supply hose connection port 12.

The male screw portion 42 formed on the outer peripheral surface of the cylindrical portion 43 is formed from the position where the water supply hose connection opening 12 is opened to the vicinity of the front end (upper end). The male screw portion 42 is screwed with the female screw portion 36, and the threads are formed in a spiral shape at an equal pitch.

The cylindrical portion 43 is formed to have a smaller diameter than the cylindrical portion 31 of the associated structural member 30. The outer diameter of the male screw portion 42 formed at the cylindrical portion 43 is formed to be larger than the inner diameter of the cylindrical portion 31 so that the male screw portion 42 and the female screw portion 36 can be screwed together. And smaller.

The sealing member 50 is constituted by a ring-shaped member that suppresses leakage of water from the front end portion 41 of the water supply valve 40. The sealing member 50 is provided with a diameter that allows the outer peripheral edge portion to contact the peripheral surface in the recessed portion 35 described above. The through hole 51 of the sealing member 50 is formed to have a larger diameter than the flow path diameter of the elbow member 23.

When connecting the water supply hose 20 configured in this manner to the washing machine body 10, the installer first connects the hose portion 21 (refer to FIG. 1) on the side of the water supply plug 100, and then connects the washing machine body 10 ( Refer to Figure 1) for side connections.

After that, the installer holds the head portion 32 of the structural member 30 with his hands, and lowers the cylindrical portion 31 formed with the female screw portion 36 from above the cylindrical portion 43 formed with the male screw portion 42. After that, the cylindrical portion 43 is lowered so that it is inserted into the extension portion 37 (see FIG. 2). Then, the side surface 36a (lower bevel) of the screw portion 36A positioned at the lower end (starting end) of the female screw portion 36 and the side surface 42a of the screw portion 42A at the upper end (starting end) of the male screw portion 42 are set. (Upper slope). When the contact is made in this way, the extending portion 37 of the connecting structure 30 is lowered to a position facing and overlapping with the plurality of screw portions of the male screw portion 42. After that, by rotating the associated structural member 30, the screw portion 36A positioned at the starting end (lower end) of the female screw portion 36 reaches the screw portion 42A at the starting end (front end) of the male screw portion 42, thereby, The screw portion 36A slides at a valley portion between the screw portion 42A and the screw portion 42B (see FIG. 2). Thereby, the female screw portion 36 of the connecting structure member 30 is screwed with the male screw portion 42, and the connecting structure member 30 is connected and installed at the water supply valve 40.

After that, as shown in FIG. 3, after the front end portion 41 of the water supply valve 40 is brought into contact with the lower surface of the sealing member 50, the sealing member 50 is attached to the sealing member 50, and the sealing member 50 is attached to the front end portion. 41 and the rib 24 are pressed in a sandwiched state.

In this way, when the connecting member 30 is connected to the water supply valve 40, it is immediately before the screwing is performed, so that the extension portion 37 has a plurality of male screw portions 42 (for example, about four steps) The threaded portions are arranged so as to cover, so that the axial center of the female screw portion 36 and the axial center of the male screw portion 42 can be easily aligned with each other (the center alignment can be easily performed). Therefore, after that, the female screw portion 36 of the structural member 30 can be screwed into the male screw portion 42 of the water supply valve 40 only by rotating the structural member 30.

When the connection of the connecting structure 30 of the water supply valve 40 is completed, the front end (lower end) 38 of the extension portion 37 is positioned near the upper surface of the housing 11. In addition, the vicinity is, for example, a gap between the frame body 11 and the front end 38 is about 1 mm. By narrowing the gap in this way, it is possible to suppress intrusion of dust into the gap of the water supply hose connection port 12. In addition, the system may be configured so that there is no gap between the frame body 11 and the front end 38.

FIG. 4 is a cross-sectional view showing a state after the water supply hose 200 of the prior art is connected to a water supply valve. In addition, FIG. 4 is the same as the present embodiment, except for the structural member 101. In addition, as shown in FIG. 4, the water supply hose 200 of the prior art is provided with a connecting member 101. At the water supply hose 200 of such a shape, the clearance between the connecting structure 101 and the water supply valve 40 is large before screwing and closing, and the connecting structure 101 cannot be stably fixed at the water supply valve 40. Therefore, the structural member 101 is installed obliquely due to its own weight, etc. If the screw connection is performed in this state, the sealing member 50 cannot be pushed by the rib 24 and the front end portion 41, and will There is a possibility of water leakage.

Fig. 5 is a view showing the structure of the prior art, (a) is a sectional view showing the relationship between the length of the female screw of the structure and the male screw of the water supply valve, and (b) is a view of the structure before the conclusion The sectional view showing the state where the female screw portion of the associated structural member and the male screw portion of the water supply valve are in contact, (c) is a sectional view showing the action when the associated structural member is pushed in. As shown in FIG. 5 (a), at the connecting structure 101, the position from the apex of the threaded portion 103A of the starting end (lower end, front end, and thread start) of the female screw portion 103 to the front end ( The length in the axial direction G up to 104) is S200. The water supply valve 40 has a length in the axial direction G from the height of the apex of the threaded portion 42A at the start end (upper end, front end, and thread start) of the male screw portion 42 to the front end portion 41. Set it to S100. The length S200 at this time is made shorter than the length S100 (S200 <S100).

As shown in FIG. 5 (b), in order to associate the connecting member 101 with the water supply valve 40, the female screw portion 103 of the connecting member 101 is covered at the male screw portion 42 of the water supply valve 40. In this case, since S200 is formed to be shorter than S100, when the threaded portion 103A and the front end portion 41 are in contact, between the male screw portion 42 of the water supply valve 40 and the female screw portion 103 of the connecting member 101 A gap (GAP) g in the radial direction is formed.

As shown in FIG. 5 (c), when the gap g is generated as described above, when the connecting structure 101 is pushed from the state of FIG. 5 (b) to the male screw portion 42 of the water supply valve 40, The structural member 101 is inclined, and it becomes difficult to attach the structural member 101 to the water supply valve 40. In addition, the water supply hose 100 (refer to FIG. 4) for the washing machine has a large tension acting on the elbow-shaped member 23 or the hose portion 21 due to the characteristics of the water supply hose 100, and it becomes easy to operate. Force for inclining the structural member 101 with respect to the axial direction. Therefore, it becomes difficult to match the center of the shaft of the female screw portion 103 of the structural member 101 and the center of the shaft of the male screw portion 42 of the water supply valve 40 to each other. As a result, as explained with reference to FIG. 4, the water supply valve 40 was reluctantly connected to the water supply valve 40 in a state where the connecting structure 101 was inclined, and this caused a leak.

Therefore, in the present embodiment, as shown in FIG. 6, the problem of the prior art is solved by setting the structure 30 as the structure 30 instead of the structure 101. FIG. 6 is a cross-sectional view showing the length relationship between the female screw portion of the associated structural member and the male screw portion of the water supply valve in this embodiment. As shown in FIG. 6, the connecting structure 30 is a shaft from the apex (top top) of the threaded portion 36A of the starting end (lower end, front end, and thread start) of the female screw portion 36 to the front end 38. The length in the direction G is set to S2. The length in the axial direction G from the apex (top top) of the threaded portion 42A of the male screw portion 42 (upper end, front end, and start of the thread) to the front end portion 41 is S1. The length S2 at this time is formed to be longer than the length S1 (S2> S1).

In this case, if the connecting structure member 30 is to be connected to the water supply valve 40 at the water supply valve 40, the apex of the screw portion 36A is lowered to the position of the front end portion 41 even if the connecting structure 30 is covered at the cylindrical portion 43 of the water supply valve 40. Here, at least the threaded portion 42A of the male screw portion 42 is overlapped (covered) in the radial direction by the extending portion 37 extending downwardly than the screw portion 36A. Therefore, the axis center O of the female screw portion 36 of the connecting structure 30 and the axis center O of the male screw portion 42 of the water supply valve 40 coincide with each other. As a result, the mutual axis center O system becomes difficult to shift in the radial direction. That is, a large gap between the female screw portion 36 and the male screw portion 42 is difficult to occur as in the prior art described with reference to FIG. 4. Even if the connecting member 30 is pushed from the position where the apex of the threaded portion 36A at the starting end of the connecting member 30 overlaps with the front end portion 41, the connecting member 30 becomes difficult to tilt. Therefore, the female screw portion 36 of the structural member 30 can be more reliably and easily attached to the male screw portion 42 of the water supply valve 40 compared to the prior art.

As described above, the water supply hose 20 according to this embodiment includes a hose portion 21 connected to a male screw portion 42 of a water supply valve 40 provided at the washing machine 1. The hose portion 21 is provided with an associated structure member 30, and the associated structure member 30 is provided with a female screw portion 36 screwed with the male screw portion 42. The length S2 in the axial direction G from the threaded portion 36A of the starting end of the female screw portion 36 (the vertex of the threaded portion 36A) to the leading end 38 is formed to be longer than that of the male screw portion 42 (the threaded portion 42A). The length S1 in the axial direction G from the threaded portion 42A up to the tip portion 41 is longer. Thereby, it is possible to suppress the sloshing when the connecting member 30 is attached to the water supply valve 40, and the connection can be performed reliably and easily.

In addition, in this embodiment, by applying the water supply hose 20 to the washing machine 1, the installer can suppress the situation where the installer installs the water supply hose 20 in an incorrect state when the washing machine 1 is installed. . In addition, even when the user installs the water supply hose 20 by himself, it is possible to suppress the case where the water supply hose 20 is installed in a wrong state.

In addition, as shown in FIG. 6, the male screw portion 42 of the water supply valve 40 is from the vertex (top top portion) of the screw portion 42B by a distance from the screw portion 42A of the starting end to the front end portion 41 The length in the axial direction G is S3. In this embodiment, the length S2 is formed to be longer than the length S3 (S2> S3).

In this case, in order to connect the connecting structure member 30 to the water supply valve 40, the connecting structure member 30 is coated on the cylindrical portion 43 of the water supply valve 40. At this time, even if the apex (top top portion) of the threaded portion 36A is lowered to the position of the front end portion 41, at least the threaded portion of the male threaded portion 42 is extended by the extending portion 37 extending downwardly than the threaded portion 36A. 42A and 42B (a thread portion of one round) are in a state of being overlapped (covered) in the radial direction. Therefore, the axis center O of the female screw portion 36 of the connecting structure 30 and the axis center O of the male screw portion 42 of the water supply valve 40 coincide with each other, and the mutually consistent state can be maintained. As a result, even if the connecting member 30 is pushed at a position where the apex of the threaded portion 36A at the starting end of the connecting member 30 and the front end portion 41 overlap, the connecting member 30 will not be pushed from that position. It may be tilted. Therefore, the female screw portion 36 of the structural member 30 can be reliably and easily attached to the male screw portion 42 of the water supply valve 40.

1‧‧‧washing machine

10‧‧‧Washing machine body

11‧‧‧Frame

12‧‧‧ water supply hose connection

20‧‧‧ Water supply hose

21‧‧‧Hose Department

22‧‧‧ Joint Department

23‧‧‧ elbow member

24‧‧‧ rib

25‧‧‧ flange

30‧‧‧Constructing structure

31‧‧‧Cylinder

32‧‧‧ head

33‧‧‧ Inclined

34‧‧‧Detent

35‧‧‧ recess

36‧‧‧Female screw section

36A‧‧‧Thread

37‧‧‧Extended

38‧‧‧Front

40‧‧‧ water supply valve

41‧‧‧Front end

42‧‧‧Male Screw

42A, 42B‧‧‧Threaded part

43‧‧‧Cylinder

44‧‧‧Filter Department

45‧‧‧ flange

46‧‧‧washer

50‧‧‧sealing member

100‧‧‧Water supply plug

[Fig. 1] A perspective view showing a washing machine provided with a water supply hose according to this embodiment. [Fig. 2] is a sectional view showing a state before the water supply hose of this embodiment is connected to the water supply valve. [Fig. 3] is a sectional view showing a state after the water supply hose of this embodiment is connected to the water supply valve.图 [Fig. 4] is a cross-sectional view showing the state after the water supply hose of the prior art is connected to the water supply valve. [Fig. 5] Shows the related structure parts of the prior art, (a) is a cross-sectional view showing the length relationship between the female screw part and the male screw part of the water supply valve, and (b) is the The sectional view showing the state where the female screw part of the former structural member is in contact with the male screw part of the water supply valve, (c) is a sectional view showing the action when the structural member is pushed in. [Fig. 6] is a cross-sectional view showing the length relationship between the female screw portion of the associated structural member and the male screw portion of the water supply valve in this embodiment.

Claims (3)

A water supply hose is characterized by having: (i) a hose portion connected to a male screw portion of a water supply valve provided at a washing machine; (ii) the hose portion is provided with an associated structural member, the associated structural member, It has a female screw part that is screwed with the male screw part. The length S2 in the axial direction from the screw part of the female screw part to the front end of the female screw part is formed to be longer than the male screw part from the starting end. The length S1 in the axial direction from the threaded portion to the front end is longer. The water supply hose according to item 1 of the scope of the patent application, wherein: 长度 The length S2 in the axial direction from the thread portion of the starting end to the front end of the female screw portion is formed to be smaller than the distance from the male screw portion. The length S3 in the axial direction from the threaded portion to the front end portion of the one end of the starting end is longer. A washing machine is characterized in that it is provided with a water supply hose as described in item 1 or item 2 of the scope of patent application.