TWM459031U - Improved two-way check valve - Google Patents

Description

Improved two-way check valve

The present invention relates to a two-way check valve, and more particularly to an improved two-way check valve that provides a good spray effect regardless of whether the sprayer is upright or inverted.

The two-way check valve is applied to the sprayer, and the sprayer can be used whether it is upright or inverted. The two-way check valve of the prior art, as shown in Figure 6, is a new patent of Taiwan Announcement No. M422006 "Two-way check valve". The system includes a body 60 and a valve body 70. The body 60 has a main flow path 61 and a secondary flow path 62. The auxiliary flow path 62 has a top opening 621 and a bottom opening 622. The auxiliary flow path 62 is attached. The main body 61 is communicated with the main passage 61. The valve body 70 has two guiding arms 71 and a ball 72. The guiding arms 71 are spaced apart from the main body 60 and adjacent to the top opening of the auxiliary flow passage 62. At the periphery of the 621, the ball 72 is axially movable between the two guiding arms 71. Referring to FIG. 7, in use, the two-way check valve is combined with a sprayer 80, and the sprayer 80 is provided with a The bottle body 81, a spray head 82 and a suction pipe 83 are disposed between the spray head 82 and the suction pipe 83, and the inside of the bottle body 81 houses the liquid 84.

When the sprayer 80 is upright, the nozzle at the end of the straw 83 is located below the liquid level of the liquid 84, and the sphere 72 closes the top opening 621 of the secondary runner 62 of the body 60. At this time, the suction force generated by the user pressing the nozzle 82 is generated. , The liquid 84 can be caused to flow into the main flow path 61 of the body 60 via the suction pipe 83 and further ejected from the spray head 82; as shown in Fig. 8, when the sprayer 80 is inverted, the nozzle at the end of the suction pipe 83 is located above the liquid level of the liquid 84. The ball 72 is away from the top opening 621 of the auxiliary flow path 62 of the body 60, so that the top opening 621 is in an open state and is located below the liquid surface of the liquid 84. At this time, the suction force generated by the user pressing the head 82 can make the liquid 84 The sub-flow passage 62 and the main flow passage 61 of the main body 60 are sequentially flowed in, and are further ejected from the shower head 82.

However, the above-mentioned two-way check valve has the following disadvantages in practical use:

1. When the sprayer 80 is used upside down, the suction force generated by the user pressing the spray head 82, in addition to causing the liquid 84 to flow sequentially into the auxiliary flow passage 62 and the main flow passage 61 of the main body 60, also causes the gas inside the suction pipe 83 to be sucked into the body. The main passage 61 of 60, so the liquid 84 in the main flow path 61 is mixed with gas, thereby causing a poor spray effect.

2. When the sprayer 80 is inverted and the liquid 84 inside the bottle 81 is relatively small such that the top opening 621 of the secondary flow path 62 of the body 60 is above the liquid level of the liquid 84, the liquid 84 cannot flow into the secondary flow path 62. In this case, the user must use the sprayer 80 upright, otherwise the liquid 84 will remain inside the bottle 81 and cannot be completely ejected.

In view of the above-mentioned shortcomings of the prior art, the present invention provides an improved two-way check valve. By designing two valve bodies and an auxiliary suction pipe, the sprayer can achieve a good spray effect regardless of whether it is upright or inverted.

In order to achieve the aforementioned novel object, the improved two-way check valve designed by the present invention comprises a body, a first valve body and a second a valve body and an auxiliary suction pipe, wherein: the body has a main flow channel; the first valve body is provided with a first pipe body and a first ball body, and the top portion of the first pipe body is gradually reduced to have a first conical pipe a first opening is formed in the first tip of the first tubular body, the first tubular body is formed on the bottom of the first tubular body, and the first tubular system is disposed at the bottom end of the body to make the first secondary flow passage Passing through the first port to communicate with the main channel of the body, the first ball system is axially movably received in the first tube body, when the first ball moves to the first tapered tube wall of the first tube body The first port of the first pipe body can be closed, so that the first auxiliary flow channel does not communicate with the main channel of the body; the second valve body is provided with a second pipe body and a second ball body, and the second pipe body The bottom portion is gradually reduced to have a second tapered tube wall, the tip end of the second tapered tube wall is formed with a second opening, and the second tube body is formed with a second secondary flow channel, the second tube system is disposed At a top end of the body, the second secondary flow path is communicated with the main channel of the body through the second opening, the second ball The second tubular body can be axially moved to be placed in the second tubular body, and when the second spherical body moves to the second tapered tubular wall of the second tubular body, the second opening of the second tubular body can be closed to make the second The auxiliary flow channel is not connected to the main flow path of the body; the auxiliary suction pipe is connected with the bottom of the second pipe body at the bottom thereof, and the inside of the auxiliary suction pipe is connected with the second auxiliary flow path of the second pipe body.

The improved two-way check valve, wherein the inner wall surface of the first pipe body is spaced apart from the first rib by a plurality of axial directions, and the bottom end of each of the first ribs is formed with a stop portion. The first ball is stopped to limit the movement of the first ball inside the first tube.

The improved two-way check valve, wherein: the inner wall surface of the second pipe body protrudes from a plurality of second ribs in an axial direction; the auxiliary pipette is inserted in the second pipe body, and is auxiliary The bottom end of the straw is at the top a top end surface of the second rib of the second tube body to restrict movement of the second sphere inside the second tube body.

The improved two-way check valve, wherein the body has a connecting tube, a top end of the connecting tube protrudes from a cannula, and the inside of the connecting tube communicates with the inside of the cannula to form the main channel.

The improved two-way check valve, wherein the first pipe body and the body are two separate members, the first pipe system is inserted into the inside of the body of the body with the upper half thereof, and the second pipe system is integrally formed It becomes a single component on the body.

The improved two-way check valve provided by the present invention can achieve advantages and enhancements including at least:

1. Compared with the prior art, the first valve body is added at the body connecting straw, and when the atomizer is used upside down, the first ball system closes the first port of the first pipe body, so that the main body of the body and the inside of the straw If the communication is not connected, the suction force generated by the user pressing the nozzle can only make the liquid flow into the main channel of the main body through the auxiliary suction pipe, and the gas inside the suction pipe cannot enter the main flow channel, thereby achieving a good spray effect.

2. When the sprayer is inverted, no matter the amount of liquid inside the bottle of the sprayer, the nozzle at the end of the auxiliary pipette is located below the liquid level of the liquid, so even if the liquid inside the bottle is small, the user is still free. According to the demand, the sprayer is selected to be placed upside down or inverted, and the liquid is completely ejected without remaining in the bottle body.

10‧‧‧ Ontology

11‧‧‧ take over

12‧‧‧Intubation

13‧‧‧mainstream

20‧‧‧First valve body

21‧‧‧First tube

211‧‧‧First tapered wall

212‧‧‧ first port

213‧‧‧First secondary runner

214‧‧‧First rib

215‧‧ ‧ blocking

22‧‧‧First sphere

30‧‧‧Second body

31‧‧‧Second body

311‧‧‧Second tapered wall

312‧‧‧ second port

313‧‧‧Second secondary runner

314‧‧‧second rib

32‧‧‧Second sphere

40‧‧‧Auxiliary straws

50‧‧‧ sprayer

51‧‧‧ bottle body

52‧‧‧Spray

53‧‧‧Sipper

54‧‧‧Liquid

60‧‧‧ body

61‧‧‧mainstream

62‧‧‧Secondary runner

621‧‧‧ top opening

622‧‧‧ bottom opening

70‧‧‧ valve body

71‧‧‧ Guide arm

72‧‧‧ sphere

80‧‧‧ sprayer

81‧‧‧ bottle body

82‧‧‧ sprinkler

83‧‧‧Sipper

84‧‧‧Liquid

Figure 1 is a perspective view of the present invention.

Figure 2 is an exploded perspective view of the present invention.

Figure 3 is a cross-sectional view of the present invention.

4 and 5 are cross-sectional views showing the state of use of the present invention.

Figure 6 is a schematic perspective view of the prior art.

7 and 8 are schematic cross-sectional views showing the state of use of the prior art.

Referring to FIG. 1 to FIG. 3, the improved two-way check valve of the present invention comprises a body 10, a first valve body 20, a second valve body 30 and an auxiliary suction pipe 40.

The body 10 has a connecting tube 11 , and a cannula 12 is formed at a distal end of the connecting tube 11 . The diameter of the connecting tube 11 is larger than the diameter of the cannula 12 , and the inside of the connecting tube 11 communicates with the inside of the cannula 12 to form There is a mainstream road 13.

The first valve body 20 is provided with a first tubular body 21 and a first spherical body 22, and the top portion of the first tubular body 21 is gradually reduced to have a first tapered tubular wall 211, and the first tapered tubular wall 211 A first opening 212 is formed in the tip end, and a first auxiliary flow passage 213 is formed in the inner portion of the first tubular body 21, and a plurality of first ribs protruding in an axial direction are protruded from the inner wall surface of the first tubular body 21 214, the first ribs 214 are arranged in a ring shape, and the bottom ends of the first ribs 214 are respectively formed with a stopper portion 215, and the first tube body 21 is disposed at the bottom end of the body 10 to make the first secondary flow. The track 213 communicates with the main channel 13 of the body 10 through the first port 212, and the first ball 22 is axially movably received in the upper half of the first pipe body 21, when the first ball 22 moves to the first When the first tapered tubular wall 211 of the tubular body 21 is closed, the first opening 212 of the first tubular body 21 can be closed, so that the first secondary flow passage 213 is not connected to the main passage 13 of the body 10. The blocking portion 215 of the first tubular body 21 stops the first spherical body 22 to restrict the first spherical body 22 from moving only inside the first tubular body 21.

The second valve body 30 is provided with a second tubular body 31 and a second spherical body 32. The bottom of the second tubular body 31 is gradually reduced to have a second tapered tubular wall 311, and the second tapered tubular wall 311 A second opening 312 is formed in the tip end, and a second auxiliary flow path 313 is formed in the inner portion of the second tube body 31. The second half of the inner wall surface of the second tube body 31 is spaced apart from the second rib by a plurality of axial directions. 314, the second ribs 314 are arranged in a ring shape, and the second tube body 31 is disposed on the other side of the top end of the nozzle 11 of the body 10, so that the second auxiliary flow path 313 passes through the second port 312 to the body. The main passage 13 of 10 is connected, and the second ball 32 is axially movably accommodated in the lower half of the second pipe body 31, and when the second ball 32 is moved to the second tapered pipe wall of the second pipe body 31 At 311, the second port 312 of the second tube body 31 can be closed, so that the second sub-flow path 313 does not communicate with the main channel 13 of the body 10.

The auxiliary suction pipe 40 is inserted into the upper half of the second pipe body 31 at the bottom thereof, and the bottom end surface of the auxiliary suction pipe 40 abuts against the top end surface of the second rib 314 of the second pipe body 31, because the auxiliary suction pipe 40 The inner diameter is smaller than the outer diameter of the second sphere 32, so that the second sphere 32 can be restricted from moving only inside the second tube 31 without being detached, and the inside of the straw 40 and the second sub-flow path 313 of the second tube 31 are assisted. Connected.

In the specific embodiment shown in the figure, the first pipe body 21 and the body 10 are two separate members, and the first pipe body 21 is inserted into the inside of the socket 11 of the body 10 with the upper half thereof, and the second pipe body The 31 series is integrally formed on the body 10 to be a single member.

Please refer to Figure 4, the two-way check valve of the present invention is practical. In use, it is combined with a sprayer 50. The sprayer 50 is provided with a bottle body 51, a spray head 52 and a straw 53. The bottle body 51 houses a liquid 54 therein, and the top end of the cannula 12 of the body 10 is inserted into the body. The bottom end of the spray head 52, the top end of the suction pipe 53 is inserted into the lower half of the first pipe body 21. When the sprayer 50 is placed upright, the nozzle end of the suction pipe 53 is located below the liquid surface of the liquid 54, the first ball 22 The second port 32 is closed from the first port 212 of the first tube body 21 and is blocked by the blocking portion 215. The second ball 32 closes the second port 312 of the second tube body 31. The suction force causes the liquid 54 to sequentially flow into the first auxiliary flow path 213 of the first tubular body 21 and the main flow path 13 of the body 10 via the suction pipe 53, and is further ejected from the shower head 52.

Referring to FIG. 5, when the sprayer 50 is inverted, the nozzle at the end of the auxiliary pipette 40 is located below the liquid level of the liquid 54, and the first ball 22 closes the first port 212 of the first pipe body 21, so that the body 10 The main channel 13 and the inside of the suction pipe 53 are not connected, and the second ball 32 is away from the second port 312 of the second pipe body 31 and pressed against the end surface of the auxiliary pipette 40. At this time, the user presses the head 52. The suction force causes the liquid 54 to flow into the auxiliary suction pipe 40 and push the second ball 32, and then sequentially flows into the second auxiliary flow path 313 of the second pipe body 32 and the main flow path 13 of the body 10, and is further ejected from the shower head 52 due to the suction pipe. The internal gas of 53 does not enter the main flow path 13 of the body 10, so that a good spray effect can be achieved, and regardless of the amount of liquid inside the bottle body 51, the nozzle at the end of the auxiliary suction pipe 40 is located below the liquid surface of the liquid 54. Therefore, even if the amount of the liquid 54 inside the bottle body 51 is small, the user can freely select the sprayer 50 to be placed upright or inverted depending on the demand, and the liquid 54 is completely ejected without remaining inside the bottle body 51.

10‧‧‧ Ontology

11‧‧‧ take over

12‧‧‧Intubation

13‧‧‧mainstream

20‧‧‧First valve body

21‧‧‧First tube

30‧‧‧Second body

31‧‧‧Second body

311‧‧‧Second tapered wall

40‧‧‧Auxiliary straws

Claims (7)

An improved two-way check valve includes a body, a first valve body, a second valve body and an auxiliary suction pipe, wherein: the body has a main flow channel; the first valve body is provided with a first pipe body And a first sphere, the top of the first tube is gradually reduced to have a first tapered tube wall, the tip of the first conical tube wall is formed with a first opening, and the first tube body is formed with a first portion a first flow channel is disposed at a bottom end of the body, so that the first secondary flow channel communicates with the main flow channel of the body through the first through hole, and the first ball system is axially movable to accommodate the first In a tube body, when the first ball moves to the first tapered tube wall of the first tube body, the first opening of the first tube body can be closed, so that the first sub-flow channel does not communicate with the main channel of the body The second valve body is provided with a second tube body and a second ball body, the bottom portion of the second tube body is gradually reduced to have a second tapered tube wall, and the tip end of the second conical tube wall is formed with a second portion a second auxiliary flow passage is formed in the interior of the second pipe body, and the second pipe system is disposed on the top of the body Passing the second auxiliary flow passage through the second through port to communicate with the main flow path of the body, the second ball system being axially movably received in the second pipe body, and when the second ball body moves to the second pipe body The second tapered tubular wall can close the second opening of the second tubular body so that the second secondary flow passage does not communicate with the main passage of the body; the auxiliary suction pipe is connected to the top end of the second tubular body by the bottom thereof The interior of the auxiliary straw is in communication with the second secondary flow path of the second tube. The modified two-way check valve according to claim 1, wherein the inner wall surface of the first pipe body is spaced apart from the first rib by a plurality of axial directions, and the bottom end of each of the first ribs is formed with a stop portion. The stop is a stop for the first ball to The first sphere is restricted from moving inside the first tube. The improved two-way check valve according to claim 2, wherein: the inner wall surface of the second pipe body is spaced apart from the second rib by a plurality of axial directions; the auxiliary pipette is inserted into the second pipe body And the bottom end surface of the auxiliary straw abuts against the top end surface of the second rib of the second tube to restrict movement of the second sphere inside the second tube. The improved two-way check valve according to claim 1, wherein the body has a connecting tube, and a top end of the connecting tube protrudes from a cannula, and the inside of the connecting tube communicates with the inside of the cannula to form the main channel. The improved two-way check valve according to claim 2, wherein the body has a connecting tube, and a top end of the connecting tube protrudes from a cannula, and the inside of the connecting tube communicates with the inside of the cannula to form the main channel. The improved two-way check valve according to claim 3, wherein the body has a connecting tube, and a top end of the connecting tube protrudes from a cannula, and the inside of the connecting tube communicates with the inside of the cannula to form the main channel. The improved two-way check valve according to any one of claims 4 to 6, wherein the first pipe body and the body are two separate members, and the first pipe system is inserted into the body of the body with the upper half thereof Internally, the second tube system is integrally formed on the body to form a single member.