TWI521123B - Sink drainage hole structure - Google Patents

Description

Sink drain hole structure

The invention relates to a structural design of a drainage hole of a water tank; in particular, a peripheral portion or an edge portion of a drainage hole of the water tank extends toward a longitudinal and horizontal reference axis to form a connecting portion and a stopping portion to assist in increasing the pivoting water level of the drainage hole. The means of stability (or drain).

It is a well-known technique for providing a sink structure for washing or storing water on a kitchen counter or similar platform; for example, US 4333188 "CONVERTIBLE SINK", US.D352771 "SINK" and other patents A typical embodiment is provided. Basically, this type of water tank has a drain hole, and the joint is pivoted to the water head or the drain pipe to discharge the water in the water tank.

One problem with the structure and use of the drain hole portion of the sink is that the sink and drain hole portions are pressed from sheet metal (e.g., stainless steel) based on manufacturing process and cost considerations. When the water supplied by the faucet is injected into the water tank, the water tank will vibrate, especially the bottom of the water tank directly bears the impact of the water column, and the amplitude and situation of the vibration are more obvious. After the long-term use of the water tank, the above-mentioned vibration situation may cause the joint of the pivotal drain hole and the water drop head (or the drain pipe) to loosen, resulting in water leakage. In some special decorative designs, the sink is embedded in the concrete structure or embedded in a small space; therefore, it is very unfavorable for the person to re-lock to produce a loose joint and a drop head (or drain).

As those familiar with the art know, the aging of the material of the drain pipe joint structure and the long-term overheating of the hot water and cold water caused by the water tank are also affected. The drop head joint gradually causes looseness.

Another problem with the structure and use of the drain hole portion of the sink is that the structure of the sink and the drain hole is pressed by the metal foil, so that the drain hole has a sharp edge, and the operator is often cut. And this situation is not what we expected.

Typically, these references show the design techniques in relation to sink drain holes and drain fittings or their associated composite structures: if the redesigned design considers the combined structure of the sink drain holes, the construction is different from the conventional ones. Changing its usage pattern is different from the old one; in essence, it will improve its application. We found that an ideal sink drain hole structure should include the following considerations:

1. Under the conditions of manufacturing cost considerations, it is necessary to overcome the impact of the conventional technology to withstand the shock of the water column (or the thermal expansion and contraction of the water tank and the combined structure of the water tank, or the aging of the composite structure), so that the pivot hole and The joint of the falling head (or drain) is loose, causing water leakage. At the same time, the situation of joints and drains that are not conducive to re-locking and loosening is minimized.

2. How to increase the combination stability of the drain hole portion and the drain pipe without increasing the material thickness of the water tank and the drain hole portion; and, to cause the sharp edge of the drain hole portion to cut the operator's situation , was reduced to the lowest possible.

None of these topics have been specifically taught or disclosed in the above references.

Therefore, the main object of the present invention is to provide a sink drain hole structure, which has the functions of streamlining the structure and preventing the loosening of the pivot hole structure of the drain hole. The utility model comprises a water tank body defined by a rigid wall and a drainage hole integrally formed on the water tank body. The drain hole has an edge portion in a horizontal reference axis direction for carrying a pivotal water drop head (or a drain pipe) from which a connecting portion is attached Extending in a direction perpendicular to the reference axis; and a stop portion (or hemming) extending from the connecting portion toward the horizontal reference axis direction, and at least a portion of the edge portion forming a structure close to the complex type; Improve the structure and safety of the sink drain hole structure, and the edge is easy to cut people.

According to the sink drain hole structure of the present invention, the connecting portion of the drain hole forms a curved arc-shaped extending structure, and the edge portion to the receiving portion integrally form a multi-layer structure which is close to the U-shaped cross section; Thus, the edge portion, the connecting portion and the detent portion (or in the multi-layer structure) collectively define a resilient space. The elastic space provides an elastic tightness margin when the drainage hole and the drain pipe (or the water drop head) are engaged with the joint, and the locking relationship between the joint and the drain pipe can be prevented from being loosened to increase The joint locks the stability of the drain hole and the drain pipe.

10‧‧‧Sink body

11‧‧‧Rigid wall

12‧‧‧ chamber

20‧‧‧Drainage holes

21‧‧‧Edge

22‧‧‧Connecting Department

23‧‧‧Departure

24‧‧‧Flexible space

25‧‧‧End

30‧‧‧ Covering body

40‧‧‧Drainage pipe

45‧‧‧Connectors

C‧‧‧Central District

Χ‧‧‧ horizontal reference axis

Y‧‧‧vertical reference axis

Fig. 1 is a schematic cross-sectional view showing a partial structure of a water tank body of the present invention; the figure shows a case where a water drain hole is provided in the water tank body.

Fig. 2 is a schematic cross-sectional view showing the planar structure of the drain hole of the present invention; the edge portion, the connecting portion and the stopping portion are defined to define an elastic space, and the tail end of the receiving portion is directed to the edge portion.

Fig. 3 is a schematic view showing an embodiment of the present invention and a combination of a drain pipe and a joint.

Figure 4 is a schematic cross-sectional view showing a planar structure of a possible embodiment of the present invention; depicting a configuration in which the receiving portion and the edge portion are pressed together.

Figure 5 is a schematic cross-sectional view showing a planar structure of a modified embodiment of the present invention; the case where the edge portion is fitted with the covering body is depicted.

Figure 6 is a schematic cross-sectional view showing a planar structure of a derivative embodiment of the present invention; depicting a case where the connecting portion extends toward the horizontal reference axis in the upper portion of the drawing to form a stopper.

Referring to Figures 1 and 2, the sink drain hole structure of the present invention comprises a water tank body 10 defined by a rigid wall 11 and a drain hole 20 integrally formed in the water tank body 10. Therefore, the water tank body 10 has a chamber 12 communicating with the drain hole 20 to accommodate water or the like. In the embodiment taken, the sink body 10 (or rigid wall 11) is selected to be pressed by a foil (e.g., stainless steel) and the integrally formed draw is pressed to form the drain hole 20.

Figure 2 shows that the sink body 10 (or drain hole 20) defines a horizontal reference axis, a vertical reference axis y, and a center zone C. The drain hole 20 has an edge portion 21 in a horizontal reference axis direction for carrying a pivotal water drop head (or a drain pipe); the edge portion 21 faces the drain hole center area C and extends along a vertical reference axis y direction. A connecting portion 22 is formed; and the connecting portion 22 further extends toward the horizontal reference axis to form a receiving portion 23 (or a folded portion). Further, at least a part of the holding portion 23 and the edge portion 21 is formed into a structure close to a complex type.

The figure depicts that the stop portion 23 has a trailing end 25; and the trailing end 25 is brought into engagement with the edge portion 21.

In the embodiment taken, the connecting portion 22 of the drain hole 20 forms a curved arc-shaped extending structure, so that the edge portion 21 to the receiving portion 23 integrally form a complex approaching the U-shaped cross section. Layer structure: Therefore, the edge portion 21, the connecting portion 22 and the stopping portion 23 (or in the multi-layer structure) collectively define an elastic space 24.

Referring to FIG. 3, the elastic space 24 provides an elastic tightness margin when the drain hole 20 and the drain pipe 40 (or the drop head) are engaged with the joint 45, and the joint between the joint 45 and the drain pipe 40 can be The locking relationship creates a loosening action to increase the stability of the joint 45 to lock the drain hole 20 and the drain pipe 40.

That is, when the drain pipe 40 (or the water drop head) is carried at the edge portion of the drain hole 20 21, when the mating joint 45 is engaged, the elastic space 24 provides a moving region or range in which the locking force of the joint 45 presses the retaining portion 23 and the edge portion 21 against each other: and, as a result, accumulates energy.

Therefore, after the joint 45 locks the drain pipe 40 to the drain hole 20, the structure of the edge portion 21, the connecting portion 22 and the stopping portion 23 causes the receiving portion 23 (or the edge portion 21) to have an instinctive view. The force that pops (releases the accumulated energy) below (or above) the vertical reference axis y, so that the joint 45 and the drain 40 (or the head) are constantly maintained with a tight fit with an elastic margin. The drainage hole 20; avoiding the loosening of the locking relationship, and maintaining the elastic clamping effect on the drainage hole 20.

Referring to FIG. 4, in a possible embodiment, after the connecting portion 22 extends in the horizontal reference axis direction to form the stopping portion 23, the receiving portion 23 is attached to the shape under the edge portion 21. That is to say, in this embodiment, the retaining portion 23 and the edge portion 21 are formed in a form of being pressed together, and the connecting portion 22 is fitted to establish a multi-layered structure having the elastic space 24.

Referring to Figure 5, a modified embodiment is depicted. The edge portion 21 of the drain hole 20 can also directly fit the structure of the U-shaped cross-section covering body 30 to cover a partial region of the edge portion 21; and, the elastic space 24 is formed. The covering body 30 can be made of an elastic material, a plastic or the like.

Referring to FIG. 6, in another derivative embodiment, the connecting portion 22 is bent upward in the drawing and extends in the horizontal reference axis to form the stopping portion 23. Further, at least a part of the holding portion 23 and the edge portion 21 is formed into a structure close to a complex type.

The trailing end 25 of the stopping portion 23 is also depicted in the drawing; and the trailing end 25 is brought into engagement with the edge portion 21. In the embodiment taken, the edge portion 21, the connecting portion 22 and the receiving portion The elastic space 24 is also defined in the multi-layer structure synthesized by the portion 23.

Typically, the sink drain hole structure includes the following advantages and considerations in accordance with the manufacturing cost:

1. The structural form of the edge portion 21, the curved connecting portion 22 and the stopping portion 23 of the drain hole 20 has been redesigned, and its configuration and use form are different from those of the conventional; Affect the impact vibration of the water column (or the thermal expansion and contraction of the water tank and the combined structure of the water tank), so that the joint of the pivoting drain hole and the falling head (or the drain pipe) is loosened, resulting in water leakage. , the system has been significantly improved.

At the same time, those embodiments of the sink that are embedded or embedded in a special design are not conducive to the situation where the person re-locks to produce loose joints and drains, and is minimized as much as possible.

2. The edge portion 21, the curved connecting portion 22 and the stopping portion 23 of the drain hole 20 collectively define the structural form of the elastic space 24, without increasing the material thickness of the water tank and the drain hole portion. A tightness margin of the drainage hole 20 and the drain pipe (or the drop head) when the joint is engaged with the joint is provided, and the looseness stability of the joint lock drain hole 20 and the drain pipe is increased. Moreover, the situation in which the sharp edge of the drain hole portion is cut to the operator is also minimized as much as possible.

Therefore, the present invention provides an effective sink drain hole structure, the spatial pattern of which is different from the conventional one, and has the advantages unmatched in the old method, and shows considerable progress.

10‧‧‧Sink body

11‧‧‧Rigid wall

12‧‧‧ chamber

20‧‧‧Drainage holes

21‧‧‧Edge

22‧‧‧Connecting Department

23‧‧‧Departure

24‧‧‧Flexible space

25‧‧‧End

C‧‧‧Central District

Χ‧‧‧ horizontal reference axis

Y‧‧‧vertical reference axis

Claims (16)

A sink drain hole structure includes a sink body defined by a rigid wall and a drain hole integrally formed in the sink body; the sink body has a chamber communicating with the drain hole; the drain hole defines a horizontal reference axis and a vertical a reference shaft and a central area; the drainage hole includes: an edge portion in a horizontal reference axis direction for carrying a pivotal water drop head; the edge portion extending toward a vertical reference axis direction to form a connection portion; and the connection portion is directed toward The horizontal reference axis direction extends to form a receiving portion, and the stopping portion has a tail end; the at least one portion between the stopping portion and the edge portion forms a multi-layer structure; and the multi-layer structure is defined A flexible space. The sink drain hole structure of claim 1, wherein the tail end is directed to the edge portion. The water tank drain hole structure according to claim 1, wherein the connection portion of the drain hole forms a curved arc-shaped extending structure to form a U-shaped cross section. The water tank drain hole structure according to claim 1, wherein the edge portion extends toward a central portion of the drain hole and extends in a direction perpendicular to the reference axis to form the connecting portion. The water tank drain hole structure according to claim 1, wherein the stopping portion has a force for releasing the accumulated energy toward the vertical reference axis direction. The sink drain hole structure of claim 4, wherein the edge portion has a force for releasing accumulated energy toward a vertical reference axis direction. The water tank drain hole structure according to claim 1, wherein the receiving portion is attached to a shape below the edge portion. The sink drain hole structure according to claim 1, wherein the portion of the recess portion is in a shape facing the edge portion. The water tank drain hole structure according to claim 1, wherein the connecting portion is bent upward, and the extending portion is formed along a horizontal reference axis direction; and the edge portion, the connecting portion and the receiving portion are common Define a flexible space. The water tank drain hole structure according to claim 1, wherein the water drop head is coupled to the drain hole with a joint; the edge portion, the connecting portion and the receiving portion jointly define an elastic space, the elasticity The space providing joint presses a range of motion in which the receiving portion and the edge portion abut each other, thereby generating an effect of accumulating energy; and causing the stopping portion to have a force for releasing the accumulated energy. The water tank drain hole structure according to claim 1, wherein the water tank system selects a metal foil to be pressed, and the integrally formed drawing presses the drain hole structure. A sink drain hole structure includes a sink body defined by a rigid wall and a drain hole integrally formed in the sink body; the sink body has a chamber communicating with the drain hole; the drain hole defines a horizontal reference axis and a vertical a reference shaft; the drain hole includes: an edge portion in a horizontal reference axis direction for carrying a pivotal water drop head (or a drain pipe); and the edge portion is sleeved with a U-shaped cross section. The sink drain hole structure of claim 12, wherein the covering system covers a partial area of the edge portion. The water tank drain hole structure according to claim 12, wherein the coating system is made of a plastic material. The water tank drain hole structure according to claim 12, wherein the coating system is made of an elastic material. The water tank drain hole structure according to claim 12, wherein the water tank system selects a metal foil to be pressed, and the integrally formed drawing presses the drain hole structure.