Temperature control stop valve

Abstract

The present invention provides a temperature-controlled stop valve, comprising: a water inlet channel; a water outlet channel; a temperature control component, wherein the temperature control component comprises a stop piece and a temperature control component, wherein the stop piece controls the connection between the water inlet channel and the water outlet channel, and the temperature control component is connected to the stop piece by transmission, and when the temperature control component is close to or at a predetermined temperature, the temperature control component controls the stop piece to cut off the water inlet channel and the water outlet channel. The application of this technical solution can provide a temperature-controlled stop valve according to temperature control.

Description

Technical Field

[0001] The invention relates to a temperature-controlled stop valve. Background Art

[0002] The shut-off valve in the prior art can usually only cut off and connect according to the change of water pressure, but cannot cut off by the change of temperature. For example, in the cold winter, pipes exposed to the air are at risk of freezing and cracking. When the pipes are frozen, the water in the pipes is solid, so the possibility of leakage is small. When the temperature rises, the ice in the pipes melts, and at this time the pipes have been frozen and cracked, and a large amount of water will leak out. Summary of the invention

[0003] The object of the present invention is to overcome the above-mentioned deficiencies in the prior art and provide a temperature-controlled stop valve.

[0004] In order to solve the above technical problems, the present invention provides a temperature control stop valve, comprising:

[0005] Water inlet channel;

[0006] Water outlet channel;

[0007] The temperature control component includes a shutoff piece and a temperature control piece, the shutoff piece controls the connection between the water inlet channel and the water outlet channel, the temperature control piece is transmission-connected to the shutoff piece, and when the temperature control piece is close to or at a predetermined temperature, the temperature control piece controls the shutoff piece to cut off the water inlet channel and the water outlet channel.

[0008] Preferably, the temperature control assembly further comprises a transmission rod, which is transmission-connected between the temperature control unit and the cut-off member, and which pushes the transmission rod to move and transmit and control the cut-off member when the temperature control unit is close to or at a predetermined temperature.

[0009] Preferably, the temperature control component drives the transmission rod to move from an initial position to a final position. When in the initial position, the water inlet channel and the water outlet channel are connected. When in the final position, the water inlet channel and the water outlet channel are cut off. The temperature control component also includes a positioning member. When the transmission member is in the final position, the positioning member is positioned against the transmission rod.

[0010] Preferably, the temperature control component further comprises a first reset member, wherein the first reset member is connected to the transmission rod, and when the transmission rod is in a final position, the first reset member accumulates a restoring force.

[0011] Preferably, the temperature control component further comprises a second reset member, the second reset member is connected to the positioning member, the second reset member drives the positioning member to be positioned and abutted against the transmission rod, and the positioning member is pressed to release the abutment.

[0012] Preferably, the temperature control component is a thermal bimetallic strip, and when the temperature control component is close to or at a predetermined temperature, it deforms and abuts against the transmission rod to drive it to slide.

[0013] Preferably, the predetermined temperature of the temperature control unit is the freezing point of water.

[0014] Preferably, it also includes a pressure relief chamber respectively connected to the water inlet channel and the water outlet channel, and the shut-off piece is pressed against and blocks the entrance of the water outlet channel by the water pressure in the pressure relief chamber. The shut-off piece also includes a control channel connecting the pressure relief chamber and the water outlet channel. When the transmission rod moves and controls to block the control channel, the pressure relief chamber is pressurized and the water inlet channel and the water outlet channel are cut off.

[0015] Preferably, the cut-off member comprises a fine hole connecting the water inlet channel and the pressure relief chamber, and the water outlet area of ​​the control channel is larger than the water outlet area of ​​the fine hole.

[0016] Preferably, the cut-off member includes a sealing member and a guide sleeve, the sealing member is sleeved on the outside of the guide sleeve and is pressed against and blocked by the water pressure in the pressure relief chamber to seal the entrance of the water outlet channel, the guide sleeve is extended with a guide channel, the transmission rod extends into and slides in the guide channel, the guide sleeve is provided with a connecting hole connecting the water outlet channel and the guide channel, the guide channel and the connecting hole define the control channel, and when the transmission rod slides to block the entrance of the guide channel, the control channel is blocked.

[0017] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0018] 1. A temperature control component includes a shutoff piece and a temperature control part. The shutoff piece controls the connection between the water inlet channel and the water outlet channel. The temperature control part is connected to the shutoff piece in a transmission manner. When the temperature control part is close to or at a predetermined temperature, the temperature control part controls the shutoff piece to cut off the water inlet channel and the water outlet channel. The temperature control shutoff valve can cut off the waterway according to the change of temperature.

[0019] 2. The temperature control component drives the transmission rod to move from the initial position to the final position. The temperature control component also includes a positioning member. When the transmission member is in the final position, the positioning member is positioned and clamped against the transmission rod. The positioning member can keep the transmission rod in the final position. At this time, the water inlet channel and the water outlet channel remain cut off.

[0020] 3. The temperature control assembly further includes a first reset member, which is connected to the transmission rod. When the transmission rod is in the final position, the first reset member accumulates a restoring force, and when the positioning member is released from the jamming, the first reset member drives the transmission rod to return to the initial position;

[0021] 4. The temperature control assembly further includes a second reset member, which is connected to the positioning member, and the second reset member drives the positioning member to position and abut against the transmission rod. When an external force is applied to the positioning member, the positioning member is pressed to release the abutment, and at this time, the first reset member drives the transmission rod to return to the initial position, and the second reset member drives the positioning member to abut against the transmission rod. When the transmission rod is in the final position again, the positioning member is pushed by the second reset member to abut against the transmission rod;

[0022] 4. The temperature control part is a thermal bimetallic strip. When the temperature control part is close to or at a predetermined temperature, it deforms and abuts against the transmission rod to drive it to slide. When the temperature changes, the deformation of the active layer of the thermal bimetallic strip is greater than that of the passive layer, so that the whole bimetallic strip bends toward the passive layer. The temperature control stop valve can be completely cut off by a mechanical structure.

[0023] 5. The preset temperature of the temperature control unit is the freezing point of water. The temperature control stop valve can play an anti-freezing role. When it is close to or at the freezing point, it will close the upstream water inlet to avoid leakage when the downstream pipeline is frozen and cracked, causing property loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of a temperature control stop valve in a preferred embodiment of the present invention;

[0025] Figure 2 It is a cross-sectional schematic diagram of a valve body in a preferred embodiment of the present invention;

[0026] Figure 3 It is a cross-sectional schematic diagram of a valve cover in a preferred embodiment of the present invention;

[0027] Figure 4 It is a three-dimensional exploded schematic diagram of a temperature control stop valve in a preferred embodiment of the present invention;

[0028] Figure 5 A three-dimensional schematic diagram of a positioning member in a preferred embodiment of the present invention;

[0029] Figure 6 This is a cross-sectional schematic diagram of a temperature control stop valve in a preferred embodiment of the present invention, where the transmission rod is in an initial position;

[0030] Figure 7 Schematic cross-sectional view of the temperature control stop valve in the preferred embodiment of the present invention, when the transmission rod is in the final position. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] Certain directional terms used to describe the drawings below, such as "inside", "outside", "above", "below" and other directional terms, will be understood to have their normal meanings and refer to those directions involved when the drawings are normally viewed. Unless otherwise specified, the directional terms described in this specification are basically in accordance with the conventional directions understood by those skilled in the art.

[0033] The terms "first", "first", "second", "second" and the like used in the present invention do not indicate any order, quantity or importance, but are used to distinguish one component from other components.

[0034] See also Figure 1-Figure 7 A temperature-controlled stop valve 100 includes a valve body 1, and the valve body 1 includes an extended water inlet pipe 11 and a water outlet pipe 12. The water inlet pipe 11 has an inlet channel 111 extending therein, and the water outlet pipe 12 has an outlet channel 121 extending therein. The outer peripheral walls of the ends of the water inlet pipe 11 and the water outlet pipe 12 are respectively provided with external thread structures, which are used to connect to external pipes.

[0035] The valve body 1 also includes a lower chamber 13, the water inlet channel 111 and the water outlet channel 121 are respectively connected to the lower chamber 13, the outlet 1111 of the water inlet channel 111 and the inlet 1211 of the water outlet channel 121 are concentrically arranged in the lower chamber 13, the outlet 1111 of the water inlet channel 111 surrounds the inlet 1211 of the water outlet channel 121, and the valve body 1 also includes a first mounting flange 14 extending radially outward along the outer periphery of the lower chamber 13.

[0036] The temperature-controlled stop valve 100 also includes a valve cover 2, which includes an upper chamber 21 and a second mounting flange 23 radially extending outward along the outer circumference of the upper chamber 21, and the second mounting flange 23 is mounted in abutment with the first mounting flange 14. The upper chamber 21 is covered on the lower chamber 13 and defines a pressure relief chamber 3, and the water inlet channel 111 and the water outlet channel 121 are respectively connected to the pressure relief chamber 3.

[0037] The temperature control stop valve 100 also includes a temperature control component 4, which includes a stop piece 41 and a temperature control unit 42. The stop piece 41 controls the connection between the water inlet channel 111 and the water outlet channel 121. The temperature control unit 42 is connected to the stop piece 41 in a transmission manner. When the temperature control unit 42 is close to or at a predetermined temperature, the temperature control unit 42 controls the stop piece 41 to cut off the water inlet channel 111 and the water outlet channel 121. The temperature control component 4 also includes a transmission rod 43, which is connected between the temperature control unit 42 and the stop piece 41 in a transmission manner. When the temperature control unit 42 is close to or at a predetermined temperature, it pushes the transmission rod 43 to move and transmits and controls the stop piece 41.

[0038] The cut-off piece 41 moves in the pressure relief chamber 3. The cut-off piece 41 is pressed against the inlet 1211 of the water outlet channel 121 by the water pressure in the pressure relief chamber 3 to block the cut-off piece 41. The cut-off piece 41 also includes a control channel 411 connecting the pressure relief chamber 3 and the water outlet channel 121. When the transmission rod 43 moves and controls the blocking of the control channel 411, the pressure relief chamber 3 is pressurized and the water inlet channel 111 and the water outlet channel 121 are cut off. The shut-off piece 41 includes a fine hole 412 connecting the water inlet channel 111 and the pressure relief chamber 3. The water outlet area of ​​the control channel 411 is larger than the water outlet area of ​​the fine hole 412. When the control channel 411 is closed, because the water of the water inlet channel 111 continuously flows into the pressure relief chamber 3, the water pressure in the pressure relief chamber 3 gradually increases and drives the shut-off piece 41 to block the inlet 1211 of the water outlet channel 121. When the control channel 411 is opened, because the water outlet area of ​​the control channel 411 is larger than the water outlet area of ​​the fine hole 412, the water pressure in the pressure relief chamber 3 gradually decreases, and the shut-off piece 41 releases the blocking of the inlet 1211 of the water outlet channel 121.

[0039] The cut-off member 41 includes a sealing member 413 and a guide sleeve 414. The sealing member 413 is sleeved on the outside of the guide sleeve 414 and is pressed against and blocked by the water pressure in the pressure relief chamber 3 to block the inlet 1211 of the water outlet channel 121. The guide sleeve 414 is extended with a guide channel 4141. The transmission rod 43 extends into and slides in the guide channel 4141. The guide sleeve 414 is provided with a connecting hole 4142 connecting the water outlet channel 121 and the guide channel 4141. The guide channel 4141 and the connecting hole 4142 define the control channel 411. When the transmission rod 43 slides to block the inlet of the guide channel 4141, the control channel 411 is blocked.

[0040] The guide sleeve 414 is installed from the bottom of the valve body 1 and extends into the pressure relief chamber 3. The guide sleeve 414 is concentrically arranged with the inlet 1211 of the water outlet channel 121. The seal 413 slides outside the guide sleeve 414. The seal 413 includes a fixed disc 4131 and a flexible ring gasket 4132 arranged on the fixed disc 4131. The flexible ring gasket 4132 includes a sealing portion 4133 connected to the fixed disc 4131. The flexible ring gasket 4132 also includes a fixing portion 4134 connected to the valve body 1, and the flexible ring gasket 4132 also includes a deformable ring portion 4135 connecting the fixing portion 4134 and the sealing portion 4133. The fixed disk body 4131 is sleeved on the outside of the guide sleeve 414 and can slide axially relative to the guide sleeve 414. The fixed disk body 4131 slides and drives the sealing portion 4133 to abut against and block the inlet 1211 of the water outlet channel 121.

[0041] The upper end opening of the guide sleeve 414 is connected to the pressure relief chamber 3, and the control end 433 of the transmission rod 43 extends into and slides in the guide channel 4141. The control end 433 of the transmission rod 43 includes two spaced-apart sealing rings 431. When the transmission rod 43 slides, the sealing rings 431 are respectively located on the upper and lower sides of the connecting hole 4142. The sliding of the transmission rod 43 drives the sealing ring 431 on the upper side of the connecting hole 4142 to block or connect the upper end opening of the guide channel 4141. The transmission rod 43 and the inner wall of the guide channel 4141 are spaced apart to define a connecting gap, and the connecting gap and the connecting hole 4142 jointly define the control channel 411.

[0042] In this embodiment, the cut-off member 41 further includes a spring 415 , which abuts between the upper chamber 21 and the fixed disk 4131 . The spring 415 can play a role in keeping the sealing portion 4133 abutting against the inlet 1211 of the water outlet channel 121 .

[0043] The valve cover 2 includes a guide block 22 disposed above the upper chamber 21 . The guide block 22 includes a guide channel 221 connected to the pressure relief chamber 3 . The operating end 432 of the transmission rod 43 passes through the guide channel 221 and extends outside the valve cover 2 .

[0044] The temperature control unit 42 is a thermal bimetallic strip. When the temperature control unit 42 is close to or at a predetermined temperature, it deforms and abuts to drive the transmission rod 43 to slide. The temperature control unit 42 is spaced apart from one end of the operating end 432 of the transmission rod 43. When the temperature control unit 42 is not deformed, the temperature control unit 42 arches in a direction away from the operating end 432 of the transmission rod 43. When the temperature control unit 42 is at a predetermined temperature, the temperature control unit 42 arches toward the operating end 432 of the transmission rod 43 and pushes the transmission rod 43. At this time, the temperature control unit 42 drives the transmission rod 43 to move from an initial position to a final position. When in the initial position, the water inlet channel 111 and the water outlet channel 121 are connected. When in the final position, the water inlet channel 111 and the water outlet channel 121 are cut off. The temperature control assembly 4 also includes a positioning member 44. When the transmission member is in the final position, the positioning member 44 is positioned and clamped against the transmission rod 43.

[0045] In this embodiment, the predetermined temperature of the temperature control unit 42 is the freezing point of water. The temperature control stop valve 100 can play an anti-freezing role by closing the upstream water inlet when it is close to or at the freezing point to avoid leakage when the downstream pipeline is frozen and cracked, thereby preventing property loss.

[0046] The temperature control stop valve 100 further includes a plurality of pillars 51 connected to the second mounting flange 23, the pillars 51 extending in a direction away from the second mounting flange 23, the temperature control part 42 being provided at the end of the pillars 51 as a thermal bimetallic strip, in this embodiment, the temperature control part 42 is in a square structure, the temperature control stop valve 100 is provided with four pillars 51 and respectively connected to the four corners of the temperature control part 42. In this embodiment, the temperature control stop valve 100 includes two brackets 5, and the brackets 5 are respectively provided with two pillars 51.

[0047] The temperature control assembly 4 also includes a first reset member 45, which is connected to the transmission rod 43. When the transmission rod 43 is in the final position, the first reset member 45 accumulates a restoring force. One end of the first reset member 45 abuts against the valve cover 2, and the other end abuts against the operating end 432 of the transmission rod 43.

[0048] The temperature control assembly 4 also includes a second reset member 46, which is connected to the positioning member 44. The second reset member 46 drives the positioning member 44 to position and clamp against the transmission rod 43, and the positioning member 44 is pressed to release the clamp. In this embodiment, the guide block 22 also includes a positioning channel 222 intersecting with the guide channel 221, and the positioning member 44 slides in the positioning channel 222. The second reset member 46 abuts between the bottom wall of the positioning channel 222 and the positioning member 44. The positioning member 44 also includes a clamping hole 441, and the transmission rod 43 passes through the clamping hole 441. The transmission rod 43 is also provided with an annular groove 434. A clamping block 4411 that can be embedded in the annular groove 434 is provided on the side of the clamping hole 441 close to the second reset member 46, and an annular wall surface 4412 is provided on the side of the clamping hole 441 away from the second reset member 46. The annular wall surface 4412 is along the transmission rod 43 has an axial extension length that is greater than an axial extension length of the annular groove 434 along the transmission rod 43. When the transmission rod 43 is in the initial position, the annular wall surface 4412 abuts against the outer wall of the transmission rod 43. When the transmission rod 43 is in the final position, the blocking block 4411 is pushed by the second reset member 46 and embedded in the annular groove 434. One end of the positioning member 44 away from the second reset member 46 extends out of the positioning channel 222. When the positioning member 44 is pressurized, the blocking block 4411 slides with the positioning member 44 and releases the connection with the transmission rod 43. At this time, the transmission rod 43 is reset to the initial position by the first reset member 45.

[0049] During use of the temperature control stop valve 100 , when the ambient temperature is above the freezing point of water, the temperature control part 42 arches upward, and at this time, the water inlet channel 111 is connected to the water outlet channel 121 .

[0050] When the ambient temperature is close to or at the freezing point of water, the temperature control unit 42 is deformed and arches downward to push the transmission rod 43 to move from the initial position to the final position, and the control end 433 of the transmission rod 43 slides in the diversion channel 4141 and blocks the upper end opening of the diversion channel 4141. At this time, water continuously flows into the pressure relief chamber 3 from the fine hole 412, and the water pressure in the pressure relief chamber 3 gradually increases and pushes the sealing member 413 to move and block the entrance 1211 of the water outlet channel 121. The water inlet channel 111 and the water outlet channel 121 are cut off. When the transmission rod 43 is in the final position, the first reset member 45 accumulates restoring force, and the positioning member 44 is driven by the second reset member 46 to drive the block 4411 to be embedded in the annular groove 434.

[0051] When the ambient temperature is above the freezing point of water again, the temperature control unit 42 deforms and arches upward, the user presses the positioning member 44 and drives the block 4411 of the positioning member 44 to disconnect from the annular groove 434, and the transmission rod 43 is reset to the initial position by the restoring force of the first reset member 45. At this time, the control end 433 of the transmission rod 43 slides to unblock the upper end opening of the guide channel 4141. At this time, the water in the pressure relief chamber 3 flows from the guide channel 4141 and the connecting hole 4142 to the water outlet channel 121, the pressure relief chamber 3 is depressurized, and the sealing member 413 is pushed by the water pressure of the water inlet channel 111 to unblock the entrance 1211 of the water outlet channel 121.

[0052] The above is only a preferred specific implementation of the present invention, but the design concept of the present invention is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the present invention within the technical scope disclosed by the present invention shall be deemed to infringe the protection scope of the present invention.

Claims

1. A temperature controlled stop valve, It is characterized in that include: Water inlet channel; Water outlet channel; A temperature control component, the temperature control component comprises a cut-off piece and a temperature control piece, the cut-off piece controls the connection between the water inlet channel and the water outlet channel, the temperature control piece is transmission-connected to the cut-off piece, and when the temperature control piece is close to or at a predetermined temperature, the temperature control piece controls the cut-off piece to cut off the water inlet channel and the water outlet channel; The temperature control stop valve also includes a pressure relief chamber connected to the water inlet channel and the water outlet channel respectively, the stop member is pressed against the entrance of the water outlet channel by the water pressure in the pressure relief chamber, the stop member also includes a control channel connected to the pressure relief chamber and the water outlet channel, and the temperature control component also includes a transmission rod, when the transmission rod moves and controls to block the control channel, the pressure relief chamber is pressed and the water inlet channel and the water outlet channel are cut off; The cut-off member comprises a fine hole connecting the water inlet channel and the pressure relief chamber, and the water outlet area of ​​the control channel is larger than the water outlet area of ​​the fine hole; The cut-off member includes a sealing member and a guide sleeve, the sealing member is sleeved on the outside of the guide sleeve and is pressed against and blocked by the water pressure in the pressure relief chamber to block the entrance of the water outlet channel, the guide sleeve is extended with a guide channel, the transmission rod extends into and slides in the guide channel, the guide sleeve is provided with a connecting hole connecting the water outlet channel and the guide channel, the guide channel and the connecting hole define the control channel, and when the transmission rod slides to block the entrance of the guide channel, the control channel is blocked.

2. The temperature control stop valve according to claim 1, Features: The transmission rod is transmission-connected between the temperature control unit and the cut-off member. When the temperature control unit is close to or at a predetermined temperature, the transmission rod is pushed to move and transmit and control the cut-off member.

3. The temperature control stop valve according to claim 2, Features: The temperature control component drives the transmission rod to move from an initial position to a final position. When in the initial position, the water inlet channel and the water outlet channel are connected. When in the final position, the water inlet channel and the water outlet channel are cut off. The temperature control component also includes a positioning member. When the transmission rod is in the final position, the positioning member is positioned against the transmission rod.

4. The temperature control stop valve according to claim 3, Features: The temperature control component also includes a first reset member, which is connected to the transmission rod. When the transmission rod is in a final position, the first reset member accumulates a restoring force.

5. The temperature control stop valve according to claim 4, Features: The temperature control component also includes a second reset member, which is connected to the positioning member. The second reset member drives the positioning member to position and abut against the transmission rod, and the positioning member is pressed to release the abutment.

6. The temperature control stop valve according to claim 2, Features: The temperature control component is a thermal bimetallic strip. When the temperature control component is close to or at a predetermined temperature, the temperature control component deforms and abuts against the transmission rod to drive the transmission rod to slide.

7. The temperature control stop valve according to claim 6, Features: The predetermined temperature of the temperature control unit is the freezing point of water.

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