TWI848887B - Drain valve assembly - Google Patents

Abstract

The present invention provides a drain valve assembly, wherein the valve body is provided with a lower supporting portion extending to the valve chamber at the lower half of the side overflow hole, so that the lower supporting ring and the upper supporting ring of a complete circle can be respectively provided above and below the shaftless valve ball in the valve chamber, so that the processing of the valve body is simpler and the assembly is also easier. Furthermore, the rotation limit of the shaftless valve ball is to directly provide a coupling hole on the valve ball and then cooperate with the limiting column to be coupled, so that the surface processing of the valve ball is faster and the defect rate can be greatly reduced.

Description

Drain valve assembly

The present invention relates to a drain valve design installed under a water tank for switching the water tank to stop water or drain water.

For example, in the US application approval number US6058526, this type of drain valve has been used for a long time, but there has been no major improvement in design. This design has good use function, but the structure is difficult to manufacture. As shown in the fourth and seventh figures of the approval number US6058526, a socket and a roller are provided at both ends of the center of the hollow ball valve, and the other four faces of the hollow ball valve are respectively provided with three holes for drainage, water inlet and overflow and a complete quarter-circle water retaining surface. In addition to the processing for drainage, water inlet and overflow, the hollow ball valve is installed on the valve body. A processing surface combined with an ear shaft trunion is also required, and a retainer is provided with a fixed rod retainer at the center hole opening for easy operation. This design requires a fixed retainer bar to operate the rotating retainer, which is easy to get stuck with debris and affect drainage. The above-mentioned structural processing is all inside the valve body, so it is difficult to process and assemble, so it has the disadvantages of high processing cost, low yield and time-consuming assembly.

The inventor of the present invention, in view of the above-mentioned known drain valve assembly, has the disadvantages of being difficult to process and assemble, resulting in high processing costs, low yields and time-consuming assembly, thus came up with the idea of creating a drain valve assembly. After much discussion and trial production of samples, as well as many revisions and improvements, the inventor finally launched the present invention.

The present invention provides a drain valve assembly, comprising: a valve body, a valve chamber is arranged in the valve body, at least one rotating baffle is arranged in the valve chamber, an upper water drop hole is arranged above the valve body, a side overflow hole is arranged on one side of the valve body, a coupling hole is arranged on the other side of the valve body, and a lower water drop hole is arranged below the valve body; an outer baffle is arranged on the outer side of the upper water drop hole, an upper baffle and an upper screw thread are arranged on the inner side of the upper water drop hole, and an extended screw thread is arranged in the middle and lower half of the side overflow hole. The lower support part of the valve chamber is extended to the lower support part of the valve chamber, so that the side overflow hole changes from a circular shape to a non-circular shape, and then the upper half is connected to the valve chamber for water flow; the upper end of the lower drain hole has an upper support part, and the upper support part is located on the valve chamber and the lower support part; a shaftless valve ball, the shaftless valve ball is arranged in the valve chamber, one side is provided with a connecting hole, the connecting hole is provided with an inner overflow hole corresponding to the connecting hole, and a first drainage hole is provided in sequence along the circumference between the connecting hole and the inner overflow hole The inner overflow hole, the first drain hole, the second drain hole and the third drain hole are all interconnected. The shaftless valve ball is provided with a coupling hole corresponding to the rotation blocking portion. The coupling hole is matched with a limiting column. One end of the limiting column is a limiting section and the other end is a stopping section. The limiting section is fixed to the coupling hole, and the stopping section protrudes from the outside of the shaftless valve ball. A lower supporting ring is provided on the upper supporting ring. The valve body 11 is provided with a valve body 12 and a lower support part and is arranged below the shaftless valve ball; an upper support ring is arranged on the upper part of the valve chamber 11 and above the shaftless valve ball; an upper positioning ring is circular with a water hole in the center, an outer thread is arranged on the outer periphery to be locked with the upper thread, and a pressing part is arranged below the outer thread; a control part, one end of which is provided with a connecting part to be combined with the connecting hole of the shaftless valve ball; a limiting part, which is used to fix the control part to the combining hole.

The main purpose of the drain valve assembly of the present invention is to provide a lower support portion extending to the valve chamber at the lower half of the side overflow hole, so that the lower support ring and the upper support ring of a complete circle can be respectively provided above and below the shaftless valve ball in the valve chamber, making the processing of the valve body simpler and the assembly easier.

The secondary purpose of the drain valve assembly of the present invention is to limit the rotation of the shaftless valve ball by directly setting a coupling hole on the valve ball and then coupling it into the limiting column, which also makes the surface processing of the valve ball faster and can greatly reduce the defective rate.

10: Valve body

11: Valve chamber

111: Rotation stopper

12: Upper drain hole

121: Outer guard

122: Upper guard

123: Upper screw thread

13: Side overflow hole

131: Lower support part

14: Binding hole

15: Downspout

151: Upper support part

20: Shaftless valve ball

21: Connection hole

22: Internal overflow hole

23: First drainage hole

24: Second drainage hole

25: The third drainage hole

26: Water barrier

27: Binding hole

28: Limiting column

281: Limit section

282: Stop section

30: Lower support ring

31: Reinforcement ring

40: Upper support ring

41: First water stop ring

42: Groove

43: Reed

50: Upper positioning ring

51: Water hole

511: convex seat

52: External thread

53: Pressing part

54: Upper snap-on foot

55: Keyhole

56: Screws

57: Dodge Department

60: Control parts

61:Connection part

62: Operation Department

63: Buckle

70: Limiting piece

71: Second water stop ring

80: Filter basket

81: Lower snap-on foot

82:Through hole

X1: First position

X2: Second position

Figure 1: A three-dimensional assembly diagram of the present invention.

Figure 2: A three-dimensional exploded view of the present invention.

Figure 3: A three-dimensional exploded view of the invention from another angle.

Figure 4: A three-dimensional assembly diagram of the present invention from another angle.

Figure 5: Top view of the assembly of the present invention.

Figure 6: A-A cross-sectional view of Figure 5 of the present invention (drainage status).

Figure 7: Side cross-sectional view of the assembly of the present invention (water-stopping state).

Figure 8: Top view of the assembly of the present invention (water-stopping state).

Figure 9: Front view cross-section of the assembly of the present invention (water-stopping state).

Figure 10: B-B cross-sectional view of Figure 5 of the present invention (drainage status).

Figure 11: Top view of the assembly of the present invention (drainage status).

Figure 12: Schematic diagram of the filter basket of the present invention before being combined.

Figure 13: Schematic diagram of the filter basket of the present invention after being combined and before being rotated.

Figure 14: Schematic diagram of the filter basket of the present invention after being combined and rotated.

Figure 15: The filter basket of the present invention rotates after being combined, the C-C cross-sectional view of Figure 5.

The following is a detailed description of the preferred embodiment of the present invention with reference to the drawings: First, please refer to the first, second, third, fourth, fifth and sixth figures, which include: a valve body 10, a valve chamber 11 is provided in the valve body 10, at least one rotation stopper 111 is provided in the valve chamber 11, an upper drain hole 12 is provided on the upper part of the valve body 10, and The valve chamber 11 is connected, the upper drain hole 12 has a diameter equal to or larger than the diameter of the valve chamber 11, a side overflow hole 13 is provided on one side of the valve body 10 and connected to the valve chamber 11, a coupling hole 14 is provided on the other side of the valve body 10 and connected to the valve chamber 11, and a lower drain hole 15 is provided below the valve body 10 and connected to the valve chamber 11.

The upper drain hole 12 is provided with an outer stopper 121 on the outside, an upper stopper 122 and an upper screw thread 123 on the inside, and the lower half of the side overflow hole 13 is provided with a lower support 131 extending to the valve chamber 11, so that the side overflow hole 13 changes from a circular shape to a non-circular shape and is connected to the valve chamber 11 with the upper half for water flow.

The upper end of the lower drain hole 15 has an upper support portion 151, and the upper support portion 151 is located on the valve chamber 11 and the lower support portion 131.

A shaftless valve ball 20 is disposed in the valve chamber 11, and a connecting hole 21 is disposed on one side, and an inner overflow hole 22 is disposed on the corresponding side of the connecting hole 21, and a first drain hole 23, a second drain hole 24, a third drain hole 25 and a water retaining surface 26 are disposed in sequence along the circumference between the connecting hole 21 and the inner overflow hole 22. The inner overflow hole 22, the first drain hole 23, the second drain hole 24 and the The third drain holes 25 are interconnected; in addition, the shaftless valve ball 20 is provided with a coupling hole 27 corresponding to the rotation blocking portion 111, and the coupling hole 27 is matched with a limiting column 28, one end of the limiting column 28 is a limiting section 281, and the other end is a stopping section 282, the limiting section 281 is a stud type fixed to the screw hole type coupling hole 27, and the stopping section 282 is a square column shape protruding from the outside of the shaftless valve ball 20.

The lower support ring 30 is a perfect circular ring and is disposed on the upper support portion 151 and the lower support portion 131. It has an arc surface on the top and is disposed below the shaftless valve ball 20. A reinforcing ring 31 is also disposed below the lower support ring 30.

An upper support ring 40 is in the shape of a perfect circular ring, with an arc surface at the bottom and a first water stop ring 41 at the outer periphery. The upper support ring 40 is arranged on the upper part of the valve chamber 11 and above the shaftless valve ball 20. A groove 42 is arranged at the top of the upper support ring 40, and a spring plate 43 is arranged in the groove 42.

An upper positioning ring 50 is circular with a water hole 51 in the center, an outer thread 52 is provided on the outer periphery to be locked with the upper thread 123, a pressing portion 53 is provided below the outer thread 52, a surface inclined downward toward the center is provided between the water hole 51 and the outer periphery, and the inclined surface is provided with at least one convex seat 511, and the convex seat 511 is provided with at least one upper engaging foot 54, at least one locking hole 55 to lock a screw 56, and at least one avoidance portion 57 between the upper engaging foot 54 and the locking hole 55, and the upper engaging foot 54, the locking hole 55 and the avoidance portion 57 are located concentrically with the water hole 51.

A control member 60 has a connecting portion 61 at one end and an operating portion 62 at the other end. A buckle ring 63 is coupled to the connecting portion 61. The connecting portion 61 is coupled to the connecting hole 21 of the shaftless valve ball 20, so that the control member 60 can control the rotation of the shaftless valve ball 20.

A limiter 70 has a second water stop ring 71. The limiter 70 is used to fix the buckle ring 63 of the control member 60 to the coupling hole 14, and the second water stop ring 71 is used to stop water.

A filter basket 80 is disposed above the upper drain hole 12, and the filter basket 80 is provided with a lower locking foot 81 corresponding to the upper locking foot 54, and a through hole 82 corresponding to the lock hole 55.

The combination, the lower support ring 30 is arranged on the upper support part 151 and the lower support part 131 by using the reinforcement ring 31, the lower support ring 30 and the reinforcement ring 31 pass through the middle section of the side overflow hole 13 at the same time, the shaftless valve ball 20 is arranged in the valve chamber 11 and fits the lower support ring 30, the control member 60 is combined with the connecting hole 21 of the shaftless valve ball 20 by the connecting part 61, and the limit The positioning member 70 cooperates with the second water stop ring 71 and the retaining ring 63 to be fixed to the coupling hole 14. The upper support ring 40 is arranged above the shaftless valve ball 20 and is sealed with the valve chamber 11 by the first water stop ring 41. The upper positioning ring 50 is locked with the outer thread 52 and the upper thread 123, and the upper positioning ring 50 presses the upper support ring 40 against the shaftless valve ball 20, so that the shaftless valve ball 20 is The valve ball 20 is fixed, and the stop section 282 is located between the rotation stop portion 111. When the operating portion 62 of the control member 60 is operated, the shaftless valve ball 20 can be rotated between a first position X1 (as shown in the seventh, eighth, and ninth figures) and a second position X2 (as shown in the sixth, tenth, and eleventh figures). The filter basket 80 is disposed above the upper drain hole 12, and the lower engaging foot After the filter basket 80 is aligned with the avoidance portion 57, the filter basket 80 can be rotated to make the lower engaging foot 81 and the upper engaging foot 54 interlock. At this time, the lock hole lock knot 55 is aligned with the through hole 82, and the screw 56 provided on the lock hole 55 can be directly locked in the lock hole 55, or through the through hole 82 to lock the lock hole 55 (as shown in Figures 12, 13, 14, and 15).

When the drain valve assembly is used to open the drain, as shown in Figures 6, 10, and 11, the shaftless valve ball 20 is controlled to rotate by operating the operating portion 62. Since the shaftless valve ball 20 is completely covered by the lower support ring 30 and the upper support ring 40, it can only rotate between the first position X1 and the second position X2 of the rotation stop 111 in the valve chamber 11. To open the drain, the limit column 28 is rotated to the second position X2, so that the first drain hole 23 is aligned with the upper drain hole 12, the second drain hole 24 is aligned with the lower drain hole 15, and the side overflow hole 13 is aligned with the inner overflow hole 22.

When the drain valve assembly is closed for water stopping, as shown in Figures 7, 8, and 9, the shaftless valve ball 20 is controlled to rotate by operating the operating part 62. Since the shaftless valve ball 20 is completely covered by the lower support ring 30 and the upper support ring 40, it can only rotate between the first position X1 and the second position X2 of the rotation stopper 111 in the valve chamber 11. When water is stopped, the limit column 28 is rotated to the first position X1, so that the water blocking surface 26 closes the aligned upper drain hole 12, the second drain hole 24 aligns with the lower drain hole 15, and the side overflow hole 13 aligns with the inner overflow hole 22.

Through the structure of the above-mentioned specific embodiment, it can be known that the present invention has the following benefits: the valve ball 20 is designed with multiple holes in order to provide the inner overflow hole 22, the first drain hole 23, the second drain hole 24 and the third drain hole 25, so as to have the function of sink drainage and overflow drainage, and the valve chamber 11 must be provided with the corresponding upper drain hole 12, the side overflow hole 13, the combination hole 14 and the lower drain hole 15. Therefore, when the shaftless valve ball 20 is arranged in the valve chamber 11, there must be an axis passing through the valve chamber 11 and the valve ball 20. The invention uses a lower support portion 131 extending to the valve chamber 11 in the lower half of the side overflow hole 13, so that the lower support ring 30 and the upper support ring 40 of a complete circle can be respectively set above and below the shaftless valve ball 20 in the valve chamber 11, making the processing of the valve body 10 simpler and easier to assemble; furthermore, the rotation limit of the shaftless valve ball 20 is to directly set a coupling hole 27 on the valve ball 20 and then cooperate with the limit column 28, which also makes the surface processing of the valve ball 20 faster and can greatly reduce the defect rate.

10: Valve body

11: Valve chamber

111: Rotation stopper

12: Upper drain hole

121: Outer guard

122: Upper guard

123: Upper screw thread

13: Side overflow hole

131: Lower support part

14: Binding hole

15: Downspout

151: Upper support part

20: Shaftless valve ball

21: Connection hole

22: Internal overflow hole

23: First drainage hole

24: Second drainage hole

25: The third drainage hole

27: Binding hole

28: Limiting column

281: Limit section

282: Stop section

30: Lower support ring

31: Reinforcement ring

50: Upper positioning ring

51: Water hole

511: convex seat

52: External thread

53: Pressing part

54: Upper snap-on foot

55: Keyhole

56: Screws

57: Dodge Department

60: Control parts

61:Connection part

70: Limiting piece

80: Filter basket

81: Lower snap-on foot

Claims (8)

A drain valve assembly comprises: a valve body, a valve chamber is arranged in the valve body, at least one rotating baffle is arranged in the valve chamber, an upper drain hole is arranged above the valve body and connected to the valve chamber, the diameter of the upper drain hole is equal to or larger than the diameter of the valve chamber, a side overflow hole is arranged on one side of the valve body and connected to the valve chamber, and a coupling hole is arranged on the other side of the valve body and connected to the valve chamber. A lower drain hole is provided below the valve body and is connected to the valve chamber; an outer blocking portion is provided on the outer side of the upper drain hole, an upper blocking portion and an upper screw thread are provided on the inner side of the upper drain hole, and a lower supporting portion extending to the valve chamber is provided in the middle and lower half of the side overflow hole, so that the side overflow hole changes from a circular shape to a non-circular shape and then the upper half is connected to the valve chamber for water to flow; the upper end of the lower drain hole An upper supporting part is provided, and the upper supporting part is located on the valve chamber and the lower supporting part; a shaftless valve ball is arranged in the valve chamber, and a connecting hole is provided on one side, and an inner overflow hole is provided on the corresponding side of the connecting hole, and a first drainage hole, a second drainage hole, a third drainage hole and a water blocking surface are provided in sequence along the circumference between the connecting hole and the inner overflow hole, and the inner overflow hole, the first drainage hole, the second drainage hole and the third drainage hole are all interconnected, and the shaftless valve ball is provided with a coupling hole corresponding to the rotation blocking part, and the coupling hole is matched with a limiting column, one end of the limiting column is a limiting section, and the other end is a stopping section, the limiting section is fixed to the coupling hole, and the stopping section protrudes from the outer lower supporting ring of the shaftless valve ball as positive The annular shape is arranged on the upper support part and the lower support part, with an arc surface on the top, and is arranged below the shaftless valve ball; An upper support ring is a perfect annular shape, with an arc surface on the bottom, arranged on the upper part of the valve chamber and above the shaftless valve ball; An upper positioning ring is circular with a water hole in the center, and an outer thread is arranged on the outer periphery to be locked with the upper thread, and the outer thread is A pressing part is provided below the screw thread; a control member, one end of which is provided with a connecting part and the other end of which is provided with an operating part, the connecting part is combined with the connecting hole of the shaftless valve ball, so that the control member can control the rotation of the shaftless valve ball; a limit member, the limit member is used to fix the control member to the combining hole; a filter basket, the filter basket is arranged above the upper drain hole; The lower support ring is arranged on the upper support part, the shaftless valve ball is arranged in the valve chamber and fits the lower support ring, the control member is connected with the connecting hole of the shaftless valve ball by the connecting part, the upper support ring is arranged above the shaftless valve ball, the upper positioning ring is locked with the outer thread and the upper thread, and the upper positioning ring presses the upper support ring against the shaftless valve ball, so that the The shaftless valve ball is fixed, and the stop section is located between the rotation stop portion. When the operating portion of the control member is operated, the shaftless valve ball can be rotated between a first position and a second position. The filter basket is arranged above the upper drain hole. After the lower engaging foot is aligned with the avoidance portion, the filter basket can be rotated to make the lower engaging foot and the upper engaging foot interlock. As described in claim 1, the drain valve assembly, wherein the limiting section is a stud-shaped fixed to the screw hole-shaped coupling hole, and the blocking section is a square column shape. As described in claim 1, the drain valve assembly, wherein the outer periphery of the upper support ring is provided with a first water stop ring, and the limiter is provided with a second water stop ring to stop water between the limiter and the control member. The drain valve assembly as described in claim 1, wherein the top of the upper support ring is provided with a groove, a spring sheet is provided in the groove, the control member is coupled with a buckle ring near the connecting portion, and the limiting member is used to fix the control member to the coupling hole with the buckle ring. The drain valve assembly as described in claim 1, wherein a surface inclined downward toward the center is provided between the water hole and the outer periphery of the upper positioning ring, and the inclined surface is provided with at least one convex seat, and the convex seat is provided with at least one upper engaging foot, at least one lock hole for locking a screw, and at least one avoidance portion between the upper engaging foot and the lock hole, and the upper engaging foot, the lock hole, The hole and the avoidance part are located concentrically with the water hole. The filter basket is provided with a lower locking foot corresponding to the upper locking foot, and a through hole is provided corresponding to the lock hole. When the lower locking foot and the upper locking foot are engaged, the lock hole lock is aligned with the through hole. The screw provided on the lock hole can be directly locked in the lock hole, or locked through the through hole. A drain valve assembly comprises: a valve body, a valve chamber is arranged in the valve body, at least one rotating baffle is arranged in the valve chamber, an upper drain hole is arranged above the valve body and connected to the valve chamber, the diameter of the upper drain hole is equal to or larger than the diameter of the valve chamber, a side overflow hole is arranged on one side of the valve body and connected to the valve chamber, and a coupling hole is arranged on the other side of the valve body and connected to the valve chamber. A lower drain hole is provided below the valve body and is connected to the valve chamber; an outer stopper is provided on the outer side of the upper drain hole, and an upper stopper and an upper screw thread are provided on the inner side of the upper drain hole, so that the overflow hole on the side changes from a circular shape to a non-circular shape and then the upper half is connected to the valve chamber for water flow; an upper supporting part is provided at the upper end of the lower drain hole; a shaftless valve ball is provided on the valve chamber , a connecting hole is provided on one side, an inner overflow hole is provided on the opposite side of the connecting hole, and a first drain hole, a second drain hole, a third drain hole and a water blocking surface are provided in sequence along the circumference between the connecting hole and the inner overflow hole, the inner overflow hole, the first drain hole, the second drain hole and the third drain hole are all interconnected, and the shaftless valve ball is provided with a coupling hole corresponding to the rotation blocking part, and the coupling hole is matched with a limiting column, one end of the limiting column is a limiting section, and the other end is a stopping section, the limiting section is fixed to the coupling hole, and the stopping section protrudes from the outside of the shaftless valve ball; a lower supporting ring is a right circular ring type and is provided on the upper supporting part, with a circular arc surface on the upper side, and is provided below the shaftless valve ball, and the lower supporting ring is provided with a circular arc surface on the lower side. A reinforcing ring is provided on the side, and the lower supporting ring and the reinforcing ring pass through the middle section of the side overflow hole at the same time; an upper supporting ring is a perfect circular ring, with an arc surface at the bottom, arranged at the upper part of the valve chamber and above the shaftless valve ball; an upper positioning ring is a circular ring with a water hole in the center, an outer thread is provided on the outer periphery to be locked with the upper thread, and a pressure ring is provided below the outer thread. a control member, one end of which is provided with a connection portion and the other end of which is provided with an operating portion, the connection portion being combined with the connection hole of the shaftless valve ball so that the control member can control the rotation of the shaftless valve ball; a limit member, the limit member is used to fix the control member to the combination hole; a filter basket, the filter basket is arranged above the upper drain hole; the combination, the lower support The ring and the reinforcing ring are arranged on the upper supporting part, the shaftless valve ball is arranged in the valve chamber and fits the lower supporting ring, the control member is connected with the connecting hole of the shaftless valve ball by the connecting part, the upper supporting ring is arranged above the shaftless valve ball, the upper positioning ring is locked with the outer thread and the upper thread, and the upper positioning ring is used to press the upper supporting ring against the shaftless valve ball, so that the shaftless valve ball The shaft valve ball is fixed, and the stop section is located between the rotation stop portion. When the operating portion of the control member is operated, the shaftless valve ball can be rotated between a first position and a second position. The filter basket is arranged above the upper drain hole. After the lower engaging foot is aligned with the avoidance portion, the filter basket can be rotated to make the lower engaging foot and the upper engaging foot interlock. As described in claim 6, the drain valve assembly, wherein the limiting section is a stud fixed to the screw hole, and the blocking section is a square column. The drain valve assembly as described in claim 6, wherein a surface inclined downward toward the center is provided between the water hole and the outer periphery of the upper positioning ring, and the inclined surface is provided with at least one convex seat, and the convex seat is provided with at least one upper engaging foot, at least one lock hole for locking a screw, and at least one avoidance portion between the upper engaging foot and the lock hole, and the upper engaging foot, the lock hole, The hole and the avoidance part are located concentrically with the water hole. The filter basket is provided with a lower locking foot corresponding to the upper locking foot, and a through hole is provided corresponding to the lock hole. When the lower locking foot and the upper locking foot are engaged, the lock hole lock is aligned with the through hole. The screw provided on the lock hole can be directly locked in the lock hole, or locked through the through hole.

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