TWM632441U - Flow control switch - Google Patents

Abstract

The present invention provides a flow control switch, which includes a pipeline structure, a rotation structure, a limit structure and a knob structure. The pipeline structure includes a tubular body and a sphere rotatably arranged in the tubular body. The rotating structure includes a rotatable member connected to the sphere for driving the sphere to rotate relative to the tubular body. The limiting structure is arranged on the tubular body and surrounds the rotatable member. The knob structure can be lifted and lowered on the rotating structure to cooperate with the rotatable member. The limiting structure has a first limiting groove and a second limiting groove adjacent to the first limiting groove. The knob structure includes a knob body that can be lifted and lowered on the rotatable member and a limiting element that is detachably arranged on the knob body. Thereby, the limiting element of the knob structure can be selectively disposed in one of the first limiting groove and the second limiting groove, so as to limit the rotation of the rotatable member relative to the limiting structure.

Description

flow control switch

The present invention relates to a control switch, in particular to a flow control switch.

In the prior art, the flow control switch can adjust or stop the gas (or liquid) supply. However, when the knob structure of the flow control switch is collided with an unexpected force and is rotated to a closed state (or a partially closed state), the supply of gas or liquid in the system pipeline will be forced to stop, causing the back-end equipment or The instrument may cause unnecessary damage or influence.

The problem to be solved by this creation is to provide a flow control switch for the deficiencies of the prior art. When the knob structure of the flow control switch is hit by an unexpected force, the flow control switch can pass through the limit groove to limit the rotation of the rotatable member relative to the limit structure, thereby avoiding the gas in the system pipeline Or the liquid supply is forced to stop, resulting in unnecessary damage or impact on the back-end equipment or instruments.

In order to solve the above problems, one of the technical means adopted in this creation is to provide a flow control switch, which includes: a pipeline structure, a rotation structure, a limit structure and a knob structure. The pipeline structure includes a tubular body and a sphere rotatably disposed in the tubular body. The rotating structure includes a rotatable member connected to the spherical body for driving the spherical body to rotate relative to the tubular body. The limiting structure is disposed on the tubular body and surrounds the rotatable member. The knob structure can be lifted and lowered on the rotating structure to cooperate with the rotatable member. Wherein, the limiting structure has a first limiting groove, a second limiting groove adjacent to the first limiting groove, and a second limiting groove adjacent to the second limiting groove and opposite to the A third limiting groove of the first limiting groove. Wherein, the knob structure includes a knob body that can be lifted and lowered on the rotatable member and a limit element that is detachably arranged on the knob body, and the limit element of the knob structure Optionally arranged in one of the first limiting groove, the second limiting groove and the third limiting groove, so as to limit the relative movement of the rotatable member to the The limiting structure produces rotation.

In one of the possible embodiments, the pipeline structure includes an inlet pipeline fitting arranged at one end of the tubular body and an outlet pipeline fitting arranged at the other end of the tubular body. The line fitting is configured to connect to an inlet line, and the outlet line fitting is configured to connect to an outlet line; wherein the rotatable member has a first rotatable connected to the ball a rotating part, a second rotatable part cooperating with the knob body, and a third rotatable part connected between the first rotatable part and the second rotatable part, the rotatable part There is a surrounding space surrounding the third rotatable part and located between the first rotatable part and the second rotatable part, and the limiting element is driven by the knob body to move in the The rotatable member moves in the surrounding space; wherein, the rotatable member of the rotating structure has a vertical axis in the extending direction, from a middle position of the first limiting groove toward the vertical axis The included angle between a first direction of the second limit groove and a second direction from a middle position of the second limit groove toward the vertical axis is 90 degrees. The included angle between the second direction from the middle position to the vertical axis and the third direction from a middle position of the third limiting groove to the vertical axis is 90 degrees, and the angle from the middle position to the vertical axis is 90 degrees. The middle position of the first limit groove is toward the first direction of the vertical axis and the third direction from the middle position of the third limit groove toward the vertical axis The included angle between the two is 180 degrees; wherein, the limiting structure includes a surrounding body detachably arranged on the tubular body and surrounding the rotatable member, and the first limiting groove, The second limiting groove and the third limiting groove extend downward from the top end of the surrounding body and are perpendicular to the tubular body; wherein, the top end of the knob body has a matching opening, and the The top end of the rotatable member has a matching protrusion for cooperating with the matching opening of the knob body, and the matching protrusion has a through opening.

In one of the possible embodiments, the top end of the knob body has a matching opening, and the top end of the rotatable member has a matching protrusion for cooperating with the matching opening of the knob body, and The matching protrusion has a through opening; wherein, when the knob body drives the limiting structure to move downward to enter the first limiting groove, the second limiting groove and the third limiting groove When inside one of the limiting grooves, the knob body is moved down to a bottommost position, so that the matching convex portion of the rotatable member is exposed on the knob body of the knob body. outside the matching opening; wherein, when the knob body drives the limiting structure to move upward to leave the first limiting groove, the second limiting groove and the third limiting groove When inside one of the knob bodies, the knob body is moved upward to a topmost position, so that the mating protrusion of the rotatable member is accommodated in the mating opening of the knob body; wherein, when all the When the limiting element is partially accommodated in the first limiting groove or the third limiting groove by being driven by the knob body, a through opening of the sphere will not communicate with the A channel of the tubular body, so that the flow control switch is in a closed state; wherein, when the limiting element is partially accommodated in the second limiting groove by being driven by the knob body , the through opening of the sphere is communicated with the channel of the tubular body, so that the flow control switch is in an opened state.

In one possible embodiment, the rotatable member of the rotating structure has a vertical axis in the extending direction, and the tubular body of the pipeline structure has a horizontal axis in the extending direction; wherein, One of a first direction from a middle position of the first limiting groove toward the vertical axis and a second direction from a middle position of the second limiting groove toward the vertical axis The included angle between them is 90 degrees; wherein, the second direction from the middle position of the second limit groove toward the vertical axis and from a middle position of the third limit groove toward the second direction The included angle between a third direction of the vertical axis is 90 degrees; wherein, the first direction from the middle position of the first limiting groove toward the vertical axis and from the third direction The included angle between the middle position of the three limiting grooves and the third direction of the vertical axis is 180 degrees; wherein, from the middle position of the second limiting groove to the third direction The second direction of the vertical axis is parallel to the horizontal axis of the tubular body.

In one possible embodiment, the limiting structure includes a surrounding body detachably disposed on the tubular body and surrounding the rotatable member, and the first limiting groove, the first limiting groove The second limiting groove and the third limiting groove extend downward from the top end of the surrounding body and are perpendicular to the tubular body.

In order to solve the above-mentioned problems, another technical means adopted in this creation is to provide a flow control switch, which includes: a pipeline structure, a rotation structure, a limit structure and a knob structure. The pipeline structure includes a tubular body and a sphere rotatably disposed in the tubular body. The rotating structure includes a rotatable member connected to the spherical body for driving the spherical body to rotate relative to the tubular body. The limiting structure is disposed on the tubular body and surrounds the rotatable member. The knob structure can be lifted and lowered on the rotating structure to cooperate with the rotatable member. Wherein, the limiting structure has a first limiting groove and a second limiting groove adjacent to the first limiting groove. Wherein, the knob structure includes a knob body that can be lifted and lowered on the rotatable member and a limit element that is detachably arranged on the knob body, and the limit element of the knob structure It can be optionally arranged in one of the first limiting groove and the second limiting groove, so as to limit the rotation of the rotatable member relative to the limiting structure.

In one of the possible embodiments, the pipeline structure includes an inlet pipeline fitting arranged at one end of the tubular body and an outlet pipeline fitting arranged at the other end of the tubular body. The line fitting is configured to connect to an inlet line, and the outlet line fitting is configured to connect to an outlet line; wherein the rotatable member has a first rotatable connected to the ball a rotating part, a second rotatable part cooperating with the knob body, and a third rotatable part connected between the first rotatable part and the second rotatable part, the rotatable part There is a surrounding space surrounding the third rotatable part and located between the first rotatable part and the second rotatable part, and the limiting element is driven by the knob body to move in the The rotatable member moves in the surrounding space; wherein, the rotatable member of the rotating structure has a vertical axis in the extending direction, from a middle position of the first limiting groove toward the vertical axis The included angle between a first direction of the second limit groove and a second direction from a middle position of the second limit groove toward the vertical axis is 90 degrees; wherein, the limit structure includes a detachable A surrounding body disposed on the tubular body and surrounding the rotatable member, and the first limiting groove and the second limiting groove extend downward from the top end of the surrounding body and are perpendicular to the The tubular body; wherein, the top end of the knob body has a matching opening, and the top end of the rotatable member has a matching protrusion for cooperating with the matching opening of the knob body, and the The mating protrusion has a through opening.

In one of the possible embodiments, the top end of the knob body has a matching opening, and the top end of the rotatable member has a matching protrusion for cooperating with the matching opening of the knob body, and The matching protrusion has a through opening; wherein, when the knob body drives the limiting structure to move downward to enter one of the first limiting groove and the second limiting groove When inside, the knob body is moved downward to a bottommost position, so that the mating protrusion of the rotatable member is exposed outside the mating opening of the knob body; wherein, when the When the knob body drives the limiting structure to move upward to leave one of the first limiting groove and the second limiting groove, the knob body is moved upward to a topmost position, so that the matching convex portion of the rotatable member is accommodated in the matching opening of the knob body; wherein, when the limiting element is driven by the knob body, it is partially accommodated in the matching opening. When inside the first limiting groove, a through opening of the sphere will not communicate with a channel of the tubular body, so that the flow control switch is in a closed state; wherein, when the limiting element When the knob body is driven and partially accommodated in the second limiting groove, the through opening of the sphere is communicated with the channel of the tubular body, so that the flow control switch is turned on.

In one possible embodiment, the rotatable member of the rotating structure has a vertical axis in the extending direction, and the tubular body of the pipeline structure has a horizontal axis in the extending direction; wherein, One of a first direction from a middle position of the first limiting groove toward the vertical axis and a second direction from a middle position of the second limiting groove toward the vertical axis The included angle between them is 90 degrees; wherein, the second direction from the middle position of the second limiting groove toward the vertical axis and the horizontal axis of the tubular body are parallel to each other.

In one possible embodiment, the limiting structure includes a surrounding body detachably disposed on the tubular body and surrounding the rotatable member, and the first limiting groove and the first limiting groove Two limiting grooves extend downward from the top end of the surrounding body and are perpendicular to the tubular body.

One of the beneficial effects of the present invention is that the present invention provides a flow control switch, which can pass through “the limiting structure is disposed on the tubular body and surrounds the rotatable member”, “the limiting structure There is a first limit groove, a second limit groove adjacent to the first limit groove, and a second limit groove adjacent to the second limit groove and opposite to the first limit groove A third limit groove" and "the limit element of the knob structure can be selectively arranged in the first limit groove, the second limit groove and the third limit groove One of the grooves" is used to limit the rotation of the rotatable member relative to the limiting structure.

Another beneficial effect of the present invention is that the present invention provides a flow control switch, which can pass through "the limiting structure is disposed on the tubular body and surrounds the rotatable member", "the limiting structure" There is a first limit groove and a second limit groove adjacent to the first limit groove" and "the limit element of the knob structure can be selectively arranged in the first limit groove. One of the position grooves and the second position limit grooves” is used to limit the rotation of the rotatable member relative to the position limit structure.

In order to further understand the features and technical content of this creation, please refer to the following detailed descriptions and drawings about this creation, however, the provided drawings are only for reference and description, and are not intended to limit this creation.

The following are specific specific examples to illustrate the implementation of the "flow control switch" disclosed in the present creation, and those skilled in the art can understand the advantages and effects of the present creation from the content disclosed in this specification. This creation can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this creation. In addition, it should be stated in advance that the drawings of this creation are only for simple schematic illustration, and are not drawn according to the actual size. The following embodiments will further describe the related technical contents of the present creation in detail, but the disclosed contents are not intended to limit the protection scope of the present creation. In addition, the term "or", as used herein, should include any one or a combination of more of the associated listed items, as the case may be.

[First Embodiment]

Referring to FIGS. 1 to 15 , the first embodiment of the present invention provides a flow control switch S, which includes: a pipeline structure 1 , a rotating structure 2 , a limiting structure 3 and a knob structure 4 . For example, the flow control switch S may be a gas control valve, a liquid control valve, or other types of control switches. However, the above-mentioned example is only one possible embodiment and is not intended to limit the present invention.

Furthermore, as shown in FIGS. 1 to 4 , the pipeline structure 1 includes a tubular body 10 and a sphere 11 rotatably disposed in the tubular body 10 . For example, the tubular body 10 may have straight channels or channels of any shape. When the tubular body 10 has a straight channel, the tubular body 10 of the pipe structure 1 has a horizontal axis H in the extending direction. Furthermore, the pipeline structure 1 includes an inlet pipeline fitting 12 disposed at one end of the tubular body 10, and the inlet pipeline fitting 12 can be configured to be connected to an inlet pipeline P1 (that is, one end of the inlet pipeline P1). inserted and secured in the inlet line fitting 12). In addition, the piping structure 1 includes an outlet line fitting 13 disposed at the other end of the tubular body 10, and the outlet line fitting 13 is configured to be connected to an outlet line P2 (that is, one end of the outlet line P2 is inserted and fixed in the outlet line fitting 13). However, the above-mentioned example is only one possible embodiment and is not intended to limit the present invention.

Furthermore, as shown in FIGS. 1 to 4 , the rotating structure 2 includes a rotatable member 20 connected to the sphere 11 for driving the sphere 11 to rotate relative to the tubular body 10 .

For example, as shown in FIGS. 1 to 4 , the rotatable member 20 of the rotating structure 2 has a vertical axis V in the extending direction, and the rotatable member 20 can rotate relative to the vertical axis V at a predetermined angle. Furthermore, the rotatable member 20 has a first rotatable part 20A, a second rotatable part 20B and a third rotatable part 20C, and the first rotatable part 20A, the second rotatable part 20B and the third rotatable part 20A. The rotating part 20C is an integrally formed structure. In addition, the first rotatable part 20A is connected to the ball 11 , the second rotatable part 20B is used to cooperate with the knob body 40 , and the third rotatable part 20C is connected to the first rotatable part 20A and the second rotatable part 20B Of. In addition, the rotatable member 20 has a surrounding space 2001 surrounding the third rotatable part 20C and located between the first rotatable part 20A and the second rotatable part 20B. However, the above-mentioned example is only one possible embodiment and is not intended to limit the present invention.

Furthermore, as shown in FIGS. 1 to 4 , the limiting structure 3 is disposed on the tubular body 10 and surrounds the rotatable member 20 , and the limiting structure 3 has a first limiting groove 301 adjacent to the first limiting groove 301 . A second limiting groove 302 of the limiting groove 301 and a third limiting groove 303 adjacent to the second limiting groove 302 and opposite to the first limiting groove 301 are provided.

For example, as shown in FIG. 1 to FIG. 4 , first of all, “from a middle position of the first limiting groove 301 toward a first direction of the vertical axis V” and “from a position of the second limiting groove 302 ” The included angle between the middle position and the second direction of the vertical axis V” can be 90 degrees or close to 90 degrees (that is, the arrangement of the first limiting groove 301 and the second limiting groove 302 from the top view In terms of orientation, an arrangement of about 90 degrees can be presented). Furthermore, both "the second direction from the middle position of the second limiting groove 302 toward the vertical axis V" and "the third direction from the middle position of the third limiting groove 303 toward the vertical axis V" The included angle between them may be 90 degrees or close to 90 degrees (that is, the second limiting groove 302 and the third limiting groove 303 may be arranged in an arrangement of about 90 degrees from the arrangement orientation of the top view). In addition, between "the first direction from the middle position of the first limiting groove 301 toward the vertical axis V" and "the third direction from the middle position of the third limiting groove 303 toward the vertical axis V" The included angle may be 180 degrees or close to 180 degrees (that is, the first limiting groove 301 and the third limiting groove 303 may be arranged in an arrangement of about 180 degrees from the arrangement orientation of the top view). In addition, "the second direction from the middle position of the second limiting groove 302 toward the vertical axis V" and "the horizontal axis H of the tubular body 10" are parallel to each other. It should be noted that the limiting structure 3 includes a surrounding body 30 detachably provided on the tubular body 10 and surrounding the rotatable member 20, and the first limiting groove 301, the second limiting groove 302 and the third limiting groove 301. The limiting groove 303 may extend downward from the top end of the surrounding body 30 and be perpendicular to the tubular body 10 . However, the above-mentioned example is only one possible embodiment and is not intended to limit the present invention.

Furthermore, as shown in FIG. 1 to FIG. 4 , the knob structure 4 is arranged on the rotating structure 2 so as to be able to ascend and descend, so as to cooperate with the rotatable member 20 . The knob structure 4 includes a knob body 40 that can be lifted and lowered on the rotatable member 20 and a limit element 41 that is detachably arranged on the knob body 40 , and the limit element 41 of the knob structure 4 can be selectively It is disposed in one of the first limiting groove 301 , the second limiting groove 302 and the third limiting groove 303 to limit the rotation of the rotatable member 20 relative to the limiting structure 3 .

For example, as shown in FIGS. 1 to 4 , the limiting element 41 can be locked on the knob body 40 , and the limiting element 41 can be driven by the knob body 40 to move within the surrounding space 2001 of the rotatable member 20 . Furthermore, the top end of the knob body 40 has a matching opening 400, and the top end of the rotatable member 20 has a matching protrusion 200 for cooperating with the matching opening 400 of the knob body 40, and the matching protrusion 200 has a through opening 2000. However, the above-mentioned example is only one possible embodiment and is not intended to limit the present invention.

Furthermore, in conjunction with FIGS. 2 to 4 , 11 to 13 and 14 , FIG. 2 is a schematic diagram of the combination of the first state of the flow control switch according to the first embodiment of the invention (when the flow control switch is in The first closed state, and the knob body is moved down to a bottom-most position), FIG. 11 is a combined schematic diagram of the second state of the flow control switch according to the first embodiment of the invention (when the flow control switch is turned on) state, and the knob body is moved down to a bottom-most position), and FIG. 14 is a combined schematic diagram of the first state of the flow control switch according to the first embodiment of the invention (when the flow control switch is in the second closed state) state, and the knob body is moved down to a bottom-most position). Wherein, when the knob body 40 drives the limiting structure 3 to move downward to enter the first limiting groove 301 (as shown in FIGS. 2 to 4 ) and the second limiting groove 302 (as shown in FIGS. 11 to 13 ) ) and one of the third limiting grooves 303 (shown in FIG. 14 ), the knob body 40 is moved downward to a bottommost position, so that the mating protrusion 200 of the rotatable member 20 is It is exposed outside the mating opening 400 of the knob body 40 (as shown in FIG. 2 , FIG. 11 and FIG. 14 ).

Furthermore, in conjunction with FIGS. 5 to 7 , 8 to 10 and 15 , FIG. 5 is a combined schematic diagram of the second state of the flow control switch according to the first embodiment of the invention (when the flow control switch is in The first closed state, and the knob body is moved upward to a topmost position), FIG. 8 is a schematic diagram of the combination of the first state of the flow control switch according to the first embodiment of the invention (when the flow control switch is in the open state, and the knob body is moved up to a topmost position), and FIG. 15 is a schematic diagram of the combination of the second state of the flow control switch of the first embodiment (when the flow control switch is in the second closed state, and the knob when the body is moved up to a topmost position). Wherein, when the knob body 40 drives the limiting structure 3 to move upward to leave the first limiting groove 301 (as shown in FIGS. 5 to 7 ) and the second limiting groove 302 (as shown in FIGS. 8 to 10 ) and one of the third limiting grooves 303 (as shown in FIG. 15 ), the knob body 40 is moved upward to a topmost position, so that the mating protrusion 200 of the rotatable member 20 is accommodated in the inside the mating opening 400 of the knob body 40 (as shown in FIG. 5 , FIG. 8 and FIG. 15 ).

Furthermore, as shown in FIG. 2 to FIG. 4 and FIG. 14 , when the limiting element 41 is driven by the knob body 40 and partially accommodated in the first limiting groove 301 (as shown in FIGS. 2 to 4 ) ) or the third limiting groove 303 (as shown in FIG. 14 ), a through opening of the sphere 11 will not communicate with a channel of the tubular body 10 , so that the flow control switch S is in a closed state (as shown in FIG. 14 ). 2 and Fig. 14).

Furthermore, as shown in FIGS. 11 to 13 , when the limiting element 41 is partially accommodated in the second limiting groove 302 through the driving of the knob body 40 , the through opening of the sphere 11 communicates with the tubular body 10, so that the flow control switch S is turned on.

Thereby, when the knob structure 4 of the flow control switch S is hit by an unexpected external force, the flow control switch S can pass through the limiting grooves (for example, the first limiting groove 301, the second limiting groove 302 or the Three limiting grooves 303) are used to limit the rotation of the rotatable member 20 relative to the limiting structure 3, so as to prevent the supply of gas or liquid in the system pipeline from being forced to stop, which may cause the equipment or instruments at the back end to be damaged. cause unnecessary damage or impact.

[Second Embodiment]

Referring to FIG. 16 , the second embodiment of the present invention provides a flow control switch S, which includes: a pipeline structure 1 , a rotation structure 2 , a limit structure 3 and a knob structure 4 . It can be seen from the comparison between FIG. 16 and FIG. 1 that the main difference between the second embodiment of the present invention and the first embodiment is that in the second embodiment, the limiting structure 3 has a first limiting groove 301 and is adjacent to the A second limit groove 302 of the first limit groove 301 (the third limit groove 303 shown in FIG. 1 is omitted), and the first limit groove 301 and the second limit groove 302 are The top end around the body 30 extends downward and perpendicular to the tubular body 10 . Furthermore, the limiting element 41 of the knob structure 4 can be selectively disposed in one of the first limiting groove 301 and the second limiting groove 302 to limit the rotatable member 20 relative to the limiting position Structure 3 produces rotation.

Therefore, as shown in FIGS. 2 to 13 , the second embodiment is the same as the first embodiment in that when the knob body 40 drives the limiting structure 3 to move downward to enter the first limiting groove 301 and the second limiting groove 301 When positioned in one of the grooves 302, the knob body 40 is moved downward to a bottommost position, so that the mating protrusion 200 of the rotatable member 20 is exposed outside the mating opening 400 of the knob body 40 (eg, 2 to 4 and 11 to 13). Furthermore, when the knob body 40 drives the limiting structure 3 to move upward to leave one of the first limiting groove 301 and the second limiting groove 302, the knob body 40 is moved upward to a topmost position. , so that the mating protrusion 200 of the rotatable member 20 is accommodated in the mating opening 400 of the knob body 40 (as shown in FIGS. 5 to 7 and 8 to 10 ). In addition, when the limiting element 41 is partially accommodated in the first limiting groove 301 by being driven by the knob body 40, a through opening of the sphere 11 will not be communicated with a channel of the tubular body 10, so that the flow control can be achieved. The switch S is in a closed state (as shown in Figures 2 to 4). In addition, when the limiting element 41 is partially accommodated in the second limiting groove 302 by being driven by the knob body 40, the through opening of the sphere 11 is communicated with the channel of the tubular body 10, so that the flow control switch S is in the locked state. open state (as shown in Figure 11 to Figure 13).

[Advantageous effects of the embodiment]

One of the beneficial effects of the present invention is that the flow control switch S provided by the present invention can be arranged on the tubular body 10 through the "limiting structure 3 and surround the rotatable member 20", "the limiting structure 3 has a first A limiting groove 301 , a second limiting groove 302 adjacent to the first limiting groove 301 , and a third limiting groove 302 adjacent to the second limiting groove 302 and opposite to the first limiting groove 301 “The limiting element 41 of the knob structure 4 can be selectively arranged in one of the first limiting groove 301, the second limiting groove 302 and the third limiting groove 303” The technical solution is used to limit the rotation of the rotatable member 20 relative to the limiting structure 3 .

Another beneficial effect of the present invention is that the flow control switch S provided by the present invention can be arranged on the tubular body 10 through the "limiting structure 3 and surround the rotatable member 20", "the limiting structure 3 has a first A limiting groove 301 and a second limiting groove 302 ” adjacent to the first limiting groove 301 ” and the limiting element 41 of the “knob structure 4 can be selectively disposed in the first limiting groove 301 and the first limiting groove 301 ” One of the two limiting grooves 302 is used to limit the rotation of the rotatable member 20 relative to the limiting structure 3 .

Thereby, when the knob structure 4 of the flow control switch S is hit by an unexpected external force, the flow control switch S can pass through the limiting grooves (for example, the first limiting groove 301, the second limiting groove 302 or the Three limiting grooves 303) are used to limit the rotation of the rotatable member 20 relative to the limiting structure 3, so as to prevent the supply of gas or liquid in the system pipeline from being forced to stop, which may cause the equipment or instruments at the back end to be damaged. cause unnecessary damage or impact.

The contents disclosed above are only the preferred and feasible embodiments of this creation, and are not intended to limit the scope of the patent application of this creation. Therefore, any equivalent technical changes made by using the descriptions and drawings of this creation are included in the application for this creation. within the scope of the patent.

S: flow control switch 1: Pipeline structure 10: Tubular body 11: Sphere 12: Inlet pipeline fittings 13: Outlet pipeline fittings P1: Inlet pipeline P2: outlet pipeline 2: Rotary structure 20: rotatable parts 200: Fitting convex part 2000: Through opening 20A: The first rotatable part 20B: Second rotatable part 20C: The third rotatable part 2001: Surrounding Space 3: Limit structure 30: Around Ontology 301: The first limit groove 302: The second limit groove 303: The third limit groove 4: Knob structure 40: Knob body 400: with opening 41: Limit element V: vertical axis H: horizontal axis

FIG. 1 is an exploded schematic diagram of the flow control switch according to the first embodiment of the invention.

2 is a schematic diagram of the combination of the first state of the flow control switch according to the first embodiment of the invention (when the flow control switch is in the first closed state and the knob body is moved downward to a bottommost position).

FIG. 3 is a schematic cross-sectional view of the section line III-III of FIG. 2 .

FIG. 4 is a schematic cross-sectional view of the IV-IV section line of FIG. 2 .

5 is a schematic diagram of the combination of the flow control switch in the second state of the first embodiment of the invention (when the flow control switch is in the first closed state and the knob body is moved upward to a topmost position).

FIG. 6 is a schematic cross-sectional view of the VI-VI section line of FIG. 5 .

FIG. 7 is a schematic cross-sectional view of the section line VII-VII of FIG. 5 .

8 is a schematic diagram of the combination of the first state of the flow control switch according to the first embodiment of the invention (when the flow control switch is in an on state and the knob body is moved upward to a topmost position).

FIG. 9 is a schematic cross-sectional view of the IX-IX section line of FIG. 8 .

FIG. 10 is a schematic cross-sectional view taken along the X-X section line of FIG. 8 .

11 is a schematic diagram of a combination of the flow control switch in the second state of the first embodiment of the invention (when the flow control switch is in an on state and the knob body is moved downward to a bottommost position).

FIG. 12 is a schematic cross-sectional view of the XII-XII section line of FIG. 11 .

FIG. 13 is a schematic cross-sectional view of the XIII-XIII section line of FIG. 11 .

14 is a schematic diagram of the combination of the first state of the flow control switch according to the first embodiment of the invention (when the flow control switch is in the second closed state and the knob body is moved downward to a bottommost position).

15 is a schematic diagram of the combination of the flow control switch in the second state of the first embodiment of the invention (when the flow control switch is in the second closed state and the knob body is moved upward to a topmost position).

FIG. 16 is an exploded schematic diagram of the flow control switch according to the second embodiment of the invention.

S: flow control switch

1: Pipeline structure

10: Tubular body

12: Inlet pipeline fittings

13: Outlet pipeline fittings

P1: Inlet pipeline

P2: outlet pipeline

2: Rotary structure

20: rotatable parts

200: Fitting convex part

2000: Through opening

3: Limit structure

30: Around Ontology

301: The first limit groove

302: The second limit groove

303: The third limit groove

4: Knob structure

40: Knob body

400: with opening

41: Limit element

Claims (10)

A flow control switch, comprising: a pipeline structure, the pipeline structure includes a tubular body and a sphere rotatably disposed in the tubular body; a rotating structure, the rotating structure includes a rotatable member connected to the sphere for driving the sphere to rotate relative to the tubular body; a limiting structure disposed on the tubular body and surrounding the rotatable member; and a knob structure, the knob structure can be raised and lowered on the rotating structure to cooperate with the rotatable member; Wherein, the limiting structure has a first limiting groove, a second limiting groove adjacent to the first limiting groove, and a second limiting groove adjacent to the second limiting groove and opposite to the a third limit groove of the first limit groove; Wherein, the knob structure includes a knob body that can be lifted and lowered on the rotatable member and a limit element that is detachably arranged on the knob body, and the limit element of the knob structure Optionally arranged in one of the first limiting groove, the second limiting groove and the third limiting groove, so as to limit the relative movement of the rotatable member to the The limiting structure produces rotation. A flow control switch as described in claim 1, Wherein, the pipeline structure includes an inlet pipeline fitting arranged at one end of the tubular body and an outlet pipeline fitting arranged at the other end of the tubular body, and the inlet pipeline fitting is configured to use to be connected to an inlet line, and the outlet line fitting is configured to be connected to an outlet line; Wherein, the rotatable member has a first rotatable part connected to the sphere, a second rotatable part matched with the knob body, and connected to the first rotatable part and the second rotatable part a third rotatable part between the rotatable parts, the rotatable member has a surrounding space around the third rotatable part and between the first rotatable part and the second rotatable part , and the limiting element is driven by the knob body to move in the surrounding space of the rotatable member; Wherein, the rotatable member of the rotating structure has a vertical axis in the extending direction, a first direction from a middle position of the first limiting groove toward the vertical axis and a direction from the second The included angle between a middle position of the limiting groove facing a second direction of the vertical axis is 90 degrees, from the middle position of the second limiting groove to the vertical axis The included angle between the second direction and a third direction from a middle position of the third limiting groove toward the vertical axis is 90 degrees, and the angle from the middle position of the third limiting groove to the vertical axis is 90 degrees. The included angle between the middle position toward the first direction of the vertical axis and the third direction from the middle position of the third limiting groove toward the vertical axis is 180 degrees; Wherein, the limiting structure includes a surrounding body detachably disposed on the tubular body and surrounding the rotatable member, and the first limiting groove, the second limiting groove and the the third limiting groove extends downward from the top end of the surrounding body and is perpendicular to the tubular body; Wherein, the top end of the knob body has a matching opening, and the top end of the rotatable member has a matching convex portion for cooperating with the matching opening of the knob body, and the matching convex portion has a matching convex portion. through the opening. A flow control switch as described in claim 1, Wherein, the top end of the knob body has a matching opening, and the top end of the rotatable member has a matching convex portion for cooperating with the matching opening of the knob body, and the matching convex portion has a matching convex portion. through the opening; Wherein, when the knob body drives the limiting structure to move downward to enter into one of the first limiting groove, the second limiting groove and the third limiting groove when the knob body is moved downward to a bottommost position, so that the mating protrusion of the rotatable member is exposed outside the mating opening of the knob body; Wherein, when the knob body drives the limiting structure to move upward to leave one of the first limiting groove, the second limiting groove and the third limiting groove , the knob body is moved upward to a topmost position, so that the mating protrusion of the rotatable member is accommodated in the mating opening of the knob body; Wherein, when the limiting element is partially accommodated in the first limiting groove or the third limiting groove by being driven by the knob body, a through opening of the sphere will not communicating with a channel of the tubular body, so that the flow control switch is in a closed state; Wherein, when the limiting element is partially accommodated in the second limiting groove by being driven by the knob body, the through opening of the sphere is communicated with the channel of the tubular body , so that the flow control switch is turned on. A flow control switch as described in claim 1, Wherein, the rotatable member of the rotating structure has a vertical axis in the extending direction, and the tubular body of the pipeline structure has a horizontal axis in the extending direction; Wherein, a first direction from a middle position of the first limiting groove toward the vertical axis and a second direction from a middle position of the second limiting groove toward the vertical axis are two The angle between them is 90 degrees; Wherein, the second direction from the middle position of the second limit groove toward the vertical axis and a third direction from the middle position of the third limit groove toward the vertical axis The angle between the two directions is 90 degrees; Wherein, the first direction from the middle position of the first limiting groove toward the vertical axis and the direction from the middle position of the third limiting groove toward the vertical axis The angle between the two in the third direction is 180 degrees; Wherein, the second direction from the intermediate position of the second limiting groove toward the vertical axis is parallel to the horizontal axis of the tubular body. The flow control switch of claim 1, wherein the limiting structure comprises a surrounding body detachably disposed on the tubular body and surrounding the rotatable member, and the first limiting groove , the second limiting groove and the third limiting groove extend downward from the top end of the surrounding body and are perpendicular to the tubular body. A flow control switch, comprising: a pipeline structure, the pipeline structure includes a tubular body and a sphere rotatably disposed in the tubular body; a rotating structure, the rotating structure includes a rotatable member connected to the sphere for driving the sphere to rotate relative to the tubular body; a limiting structure disposed on the tubular body and surrounding the rotatable member; and a knob structure, the knob structure can be raised and lowered on the rotating structure to cooperate with the rotatable member; Wherein, the limiting structure has a first limiting groove and a second limiting groove adjacent to the first limiting groove; Wherein, the knob structure includes a knob body that can be lifted and lowered on the rotatable member and a limit element that is detachably arranged on the knob body, and the limit element of the knob structure It can be optionally arranged in one of the first limiting groove and the second limiting groove, so as to limit the rotation of the rotatable member relative to the limiting structure. The flow control switch as claimed in claim 6, Wherein, the pipeline structure includes an inlet pipeline fitting arranged at one end of the tubular body and an outlet pipeline fitting arranged at the other end of the tubular body, and the inlet pipeline fitting is configured to use to be connected to an inlet line, and the outlet line fitting is configured to be connected to an outlet line; Wherein, the rotatable member has a first rotatable part connected to the sphere, a second rotatable part matched with the knob body, and connected to the first rotatable part and the second rotatable part a third rotatable part between the rotatable parts, the rotatable member has a surrounding space around the third rotatable part and between the first rotatable part and the second rotatable part , and the limiting element is driven by the knob body to move in the surrounding space of the rotatable member; Wherein, the rotatable member of the rotating structure has a vertical axis in the extending direction, a first direction from a middle position of the first limiting groove toward the vertical axis and a direction from the second An included angle between a middle position of the limiting groove facing a second direction of the vertical axis is 90 degrees; Wherein, the limiting structure includes a surrounding body detachably disposed on the tubular body and surrounding the rotatable member, and the first limiting groove and the second limiting groove the top end of the surrounding body extends downward and perpendicular to the tubular body; Wherein, the top end of the knob body has a matching opening, and the top end of the rotatable member has a matching convex portion for cooperating with the matching opening of the knob body, and the matching convex portion has a matching convex portion. through the opening. The flow control switch as claimed in claim 6, Wherein, the top end of the knob body has a matching opening, and the top end of the rotatable member has a matching convex portion for cooperating with the matching opening of the knob body, and the matching convex portion has a matching convex portion. through the opening; Wherein, when the knob body drives the limiting structure to move downward to enter into one of the first limiting groove and the second limiting groove, the knob body is moved downward. moving to a bottommost position, so that the mating protrusion of the rotatable member is exposed outside the mating opening of the knob body; Wherein, when the knob body drives the limiting structure to move upward to leave one of the first limiting groove and the second limiting groove, the knob body is moved upward to a topmost position, such that the mating protrusion of the rotatable member is received in the mating opening of the knob body; Wherein, when the limiting element is partially accommodated in the first limiting groove by being driven by the knob body, a through opening of the sphere will not communicate with a channel of the tubular body , so that the flow control switch is in a closed state; Wherein, when the limiting element is partially accommodated in the second limiting groove by being driven by the knob body, the through opening of the sphere is communicated with the channel of the tubular body , so that the flow control switch is turned on. The flow control switch as claimed in claim 6, Wherein, the rotatable member of the rotating structure has a vertical axis in the extending direction, and the tubular body of the pipeline structure has a horizontal axis in the extending direction; Wherein, a first direction from a middle position of the first limiting groove toward the vertical axis and a second direction from a middle position of the second limiting groove toward the vertical axis are two The angle between them is 90 degrees; Wherein, the second direction from the intermediate position of the second limiting groove toward the vertical axis is parallel to the horizontal axis of the tubular body. The flow control switch of claim 6, wherein the limiting structure comprises a surrounding body detachably disposed on the tubular body and surrounding the rotatable member, and the first limiting groove and the second limiting groove extends downward from the top end of the surrounding body and is perpendicular to the tubular body.

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