Water heating stop valve

Abstract

The water heating stop valve comprises a valve body, a valve rod and a valve clack, the valve rod comprises a rotating section and a sliding section, the valve body is provided with a containing cavity, the cavity wall of the containing cavity is provided with a liquid outlet channel, the valve body is provided with a liquid inlet channel, the liquid inlet channel is located below the containing cavity, the cavity bottom of the containing cavity is provided with a communicating hole, and the communicating hole communicates with the liquid inlet channel; the sliding section is embedded in the containing cavity in a sliding mode, the valve clack is connected to the lower end of the sliding section and used for sealing the communicating hole, and the rotating section is rotationally connected to the valve body and is in threaded connection with the sliding section. The rotating section is rotationally connected to the valve body, the rotating section and the valve body are kept relatively fixed in the direction of the rotating axis of the valve rod, the rotating section is in threaded connection with the sliding section, the sliding section is driven to slide, the valve clack is driven to slide, communication and closing of the communication hole are achieved, and when the stop valve is adjusted, the distance between the end, away from the sliding section, of the rotating section and the valve body is kept constant; the use requirement when the installation space of the stop valve is small is met, and the application range of the stop valve is widened.

Description

Technical Field

[0001] This application relates to the technical field of valves, and in particular to a water-cooled shut-off valve. Background Technology

[0002] Gate valves are widely used in various pipelines that transmit fluids. They can be used as control switches to control the flow of fluids and regulate the flow rate. For example, in daily life, gate valves are often installed on water outlets on walls and then connected to the water outlet terminal through water pipes.

[0003] For example, a Chinese utility model patent with application number 201620195987.1, authorization announcement number CN205423879, and titled "Stop Valve" discloses a stop valve, which includes a valve body, a valve disc disposed in a cavity of the valve body, and a valve stem fixedly connected to the valve disc and moving up and down within the valve body. The valve body is provided with a baffle, and the valve disc is sealed to the baffle.

[0004] When the above-mentioned gate valve is in use, the valve stem is rotated to move the valve stem up and down along the valve body, thereby causing the valve disc to slide and realize the opening and closing of the gate valve. When the installation position of the gate valve is relatively small, it cannot provide enough space for the valve stem to slide, which affects the use of the gate valve. Utility Model Content

[0005] To ensure the normal use of the stop valve and to expand its applicability, this application provides a water-cooled stop valve.

[0006] The water heating shut-off valve provided in this application adopts the following technical solution:

[0007] A water-cooled shut-off valve includes a valve body, a valve stem, and a valve disc. The valve stem includes a rotating section and a sliding section. The valve body has a receiving cavity with a liquid outlet channel on its wall, which is connected to the outside. The valve body also has a liquid inlet channel located below the receiving cavity. A connecting hole is provided at the bottom of the receiving cavity, which is connected to the liquid inlet channel. The sliding section is slidably embedded in the receiving cavity, and its sliding direction is parallel to its length. The valve disc is connected to the lower end of the sliding section and is used to close the connecting hole. The rotating section is rotatably connected to the valve body, and its rotation axis is parallel to the rotation axis of the sliding section. The rotating section and the sliding section are threadedly connected.

[0008] By adopting the above technical solution, the rotating section is rotatably connected to the valve body. The rotating section and the valve body are kept relatively fixed along the direction of the valve stem rotation axis. The rotating section is threadedly connected to the sliding section, driving the sliding section to slide, which in turn drives the valve disc to slide, realizing the connection and closure of the connecting hole. This ensures that when adjusting the gate valve, the distance between the end of the rotating section away from the sliding section and the valve body remains constant, meeting the usage requirements of gate valves with small installation space and improving the applicability of gate valves.

[0009] Preferably, it further includes a valve cover and a retaining spring. One end of the valve cover is located in the receiving cavity. The valve cover is provided with a rotating groove. The rotating section is rotatably embedded in the rotating groove. A positioning groove is provided on the groove wall at the end of the rotating groove near the receiving cavity. A positioning ring is connected to the outer periphery of the rotating section. The positioning ring is embedded in the positioning groove. A second annular groove is provided on the outer wall of the rotating section. The retaining spring is embedded in the second annular groove. The retaining spring abuts against the end of the valve cover away from the receiving cavity.

[0010] By adopting the above technical solution, the rotating section is rotatably embedded in the rotating groove, the positioning plate abuts against the bottom of the positioning groove, the snap ring is embedded in the second annular groove, and the snap ring abuts against one end of the valve cover, which facilitates the installation and disassembly of the rotating section and the valve cover. The relative fixation of the rotating section and the valve cover along the rotation axis of the rotating section reduces the possibility of relative sliding between the rotating section and the valve cover, and improves the reliability of the shut-off valve.

[0011] Preferably, a limiting ring is connected to the wall of the positioning groove, the inner wall of the limiting ring has a hexagonal cross-section, the end of the sliding segment away from the valve disc is slidably embedded in the positioning groove, and the side wall of the sliding segment is in contact with the inner wall of the limiting ring.

[0012] By adopting the above technical solution, the inner wall of the limiting ring is in contact with the outer wall of the sliding section. The cross-section of the inner wall of the limiting ring is hexagonal, so that when the rotating section rotates, the rotating section and the sliding section are threadedly connected, and the outer wall of the sliding section abuts against the inner wall of the limiting ring, preventing the sliding section from rotating with the rotating section, thus realizing the sliding section sliding along the rotation axis of the rotating section.

[0013] Preferably, the distance from any point on the inner wall of the limiting ring to the valve seat axis is not less than the distance from any point on the outer wall of the positioning ring to the valve seat axis.

[0014] By adopting the above technical solution, it is easy for the rotating section to be embedded in the rotating groove and the positioning ring to be embedded in the positioning groove, thereby improving the assembly efficiency of the shut-off valve.

[0015] Preferably, it also includes a first sealing ring and a second sealing ring. The valve cover has a first sealing groove on its outer periphery, and the first sealing ring is embedded in the first sealing groove. The outer wall of the first sealing ring abuts against the bottom of the first sealing groove and the wall of the receiving cavity. The rotating section has a second sealing groove on its outer periphery, and the second sealing ring is embedded in the second sealing groove. The outer wall of the second sealing ring abuts against the bottom of the second sealing groove and the wall of the rotating groove.

[0016] By adopting the above technical solution, the first sealing ring is embedded in the first sealing groove, and the outer wall of the first sealing ring abuts against the bottom of the first sealing groove and the wall of the receiving cavity. The second sealing ring is embedded in the second sealing groove, and the outer wall of the second sealing ring abuts against the bottom of the second sealing groove and the wall of the rotating groove. This reduces the possibility of liquid leakage in the shut-off valve through the connection between the valve cover and the valve body and the connection between the valve cover and the valve stem, thereby improving the sealing performance of the shut-off valve.

[0017] Preferably, the rotating section includes a fixed part, an extension part, and a connecting part. The fixed part is rotatably embedded in the rotating groove. The extension part is coaxially connected to the end of the fixed part away from the receiving cavity. There are a plurality of extension parts, which are evenly distributed along the axial direction of the extension part. The connecting part is coaxially connected to the end of the extension part away from the fixed part.

[0018] By adopting the above technical solution, the rotating section consists of a fixed part, an extension part, and a connecting part, which makes it easy to select the appropriate number of extension parts as needed to adjust the length of the rotating section and improve the applicability of the gate valve.

[0019] Preferably, the end of the fixing part away from the receiving cavity is connected to a first protrusion, and the end of the extension part near the fixing part is provided with a first groove. The first protrusion is used to be embedded in the first groove, and the sidewall of the first protrusion is in contact with the groove wall of the first groove. The end of the extension part away from the first groove is connected to a second protrusion, and the end of the connecting part near the extension part is provided with a second groove. The second protrusion is used to be embedded in an adjacent first groove or second groove, and the second protrusion is in contact with the groove wall of the first groove or the groove wall of the second groove.

[0020] By adopting the above technical solution, the first protrusion of the fixing part is embedded in the first groove of the extension part, and the second protrusion of the extension part is embedded in the first groove of the adjacent extension part or the second groove of the connecting part, which improves the stability of the overall connection of the rotating section, reduces the possibility of the normal use of the gate valve being affected by the offset between the fixing part, the extension part and the connecting part, and improves the reliability of the gate valve.

[0021] Preferably, it further includes a baffle and a third reset member. The baffle is slidably embedded in the first groove, and the side wall of the baffle is in contact with the groove wall of the first groove. The third reset member is connected between the baffle and the extension. The third reset member makes the side surface of the baffle away from the bottom of the first groove tend to be flush with the end of the extension near the fixed part.

[0022] By adopting the above technical solution, the third reset component drives the baffle to cover the first groove, preventing external impurities from entering the first groove, reducing the possibility of external impurities causing wear to the components inside the first groove when the extension is not in use, and improving the service life of the extension.

[0023] Preferably, it also includes a knob, which is coaxially connected to the end of the rotating section away from the sliding section. The knob has a plurality of curved grooves on its outer periphery, and the plurality of curved grooves are distributed circumferentially around the knob axis.

[0024] By adopting the above technical solution, the knob is connected to the rotating section, and the outer circumference of the knob is provided with a curved groove, which can increase the friction between the hand and the knob, making the knob easier to turn and increasing the comfort of operation.

[0025] Preferably, it also includes a decorative cover, which is attached to the outer periphery of the valve cover.

[0026] By adopting the above technical solution, the decorative cover is placed on the outer periphery of the valve cover, which prevents external liquids or impurities from contacting the valve body and valve cover during use, reducing the possibility of damage to the valve body and valve cover and improving the service life of the gate valve.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The rotating section is rotatably connected to the valve body. The rotating section and the valve body are kept relatively fixed along the direction of the valve stem rotation axis. The rotating section is threadedly connected to the sliding section, driving the sliding section to slide, which in turn drives the valve disc to slide, realizing the connection and closure of the connecting hole. This ensures that when adjusting the gate valve, the distance between the end of the rotating section away from the sliding section and the valve body remains constant, meeting the usage requirements of gate valves with small installation space and improving the applicability of gate valves.

[0029] 2. The rotating section is rotatably embedded in the rotating groove, the positioning plate abuts against the bottom of the positioning groove, and the snap ring is embedded in the second ring groove. The snap ring abuts against one end of the valve cover, which facilitates the installation and removal of the rotating section and the valve cover. The relative fixation of the rotating section and the valve cover along the rotation axis of the rotating section reduces the possibility of relative sliding between the rotating section and the valve cover. The inner wall of the limiting ring fits against the outer wall of the sliding section. The cross-section of the inner wall of the limiting ring is hexagonal, so that when the rotating section rotates, the rotating section and the sliding section are threadedly connected. The outer wall of the sliding section abuts against the inner wall of the limiting ring, which prevents the sliding section from rotating with the rotating section. This allows the sliding section to slide along the rotation axis of the rotating section, improving the reliability of the gate valve.

[0030] 3. The rotating section consists of a fixed part, an extension part, and a connecting part, which allows for the selection of an appropriate number of extension parts as needed to adjust the length of the rotating section and improve the applicability of the gate valve. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a water heating shut-off valve.

[0032] Figure 2 This is a cross-sectional view of a water-cooled shut-off valve, mainly showing the valve body, valve cover, decorative cover, and regulating components.

[0033] Figure 3This is a partial sectional view of a water-heating shut-off valve.

[0034] Figure 4 This is a cross-sectional view of a water-cooled shut-off valve, mainly showing the valve stem, valve disc, and mounting ring.

[0035] Figure 5 This is a cross-sectional view of a water-cooled shut-off valve, mainly showing the limit ring.

[0036] Figure 6 yes Figure 4 Enlarged view of point A in the middle.

[0037] Figure 7 yes Figure 4 Enlarged view of point B in the middle.

[0038] Figure 8 This is an exploded view of the knob and valve stem.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Valve body; 11. Main body; 111. Auxiliary ring; 112. Connecting ring; 113. Liquid outlet channel; 114. Liquid inlet channel; 115. Connecting hole; 116. Liquid inlet; 117. Liquid outlet; 118. First internal thread; 119. Protruding ring; 12. Mounting base; 121. First external thread; 122. Second internal thread; 123. First annular groove; 13. Receiving cavity;

[0041] 2. Valve cover; 21. Abutment ring; 22. Second external thread; 23. Auxiliary groove; 24. First sealing groove; 25. Third external thread; 26. Rotating groove; 27. Positioning groove; 28. Limiting ring; 29. ​​First chamfer;

[0042] 3. Valve stem; 31. Rotating section; 311. Fixing part; 3111. Positioning ring; 3112. Second annular groove; 3113. Second sealing groove; 3114. Connecting post; 31141. Fourth external thread; 3115. First protrusion; 31151. First fillet; 31152. First sliding groove; 3116. First guide groove; 312. Extension part; 3121. First groove; 3122. First fixing groove; 3123. Second protrusion; 31231. Second fillet; 31232. Second sliding groove; 3124. Fourth annular groove; 3125. First connecting groove; 3126. Second guide groove; 3127. Second connecting groove; 3128. Third sliding groove; 3129. Third guide groove; 313. First connecting assembly; 3131. First fixing block; 31311. Three chamfers; 3132, First reset component; 3133, First guide block; 314, Second connecting assembly; 3141, First rack; 3142, Second rack; 3143, Gear; 3144, Baffle; 3145, Third reset component; 3146, Slide rod; 3147, Second fixing block; 31471, Fourth chamfer; 3148, Abutting block; 31481, Third guide block; 314811, Fifth chamfer; 3149, Second reset component; 31410, Second guide block; 315, Connecting part; 3151, Second groove; 3152, Second fixing groove; 3153, Unlocking hole; 3154, Limiting post; 32, Sliding section; 321, Connecting groove; 322, Fourth internal thread; 323, Mounting post; 3231, Third annular groove; 324, Second chamfer;

[0043] 4. Valve disc;

[0044] 5. Decorative cover; 51. Insert ring; 511. Insert groove; 52. Connecting sleeve; 521. Third internal thread;

[0045] 61. First sealing ring; 62. Second sealing ring; 63. Snap ring;

[0046] 7. Mounting ring; 71. Mounting groove;

[0047] 8. Adjustment component; 81. Knob; 811. Curved groove; 812. Lower recessed cavity; 813. Upper recessed cavity; 814. Fixing post; 8141. Limiting groove; 8142. Connecting hole; 82. Fixing screw; 83. Sealing plate; 84. Sealing ring. Detailed Implementation

[0048] The present application will be further described in detail below with reference to the accompanying drawings.

[0049] Reference Figure 1This application discloses a water-cooled shut-off valve including a valve body 1. The valve body 1 includes a main body 11 and a mounting base 12. One end of the mounting base 12 is fixedly connected to the outer wall of the main body 11, and the axis of the mounting base 12 is perpendicular to the axis of the main body 11. A first external thread 121 is provided on the outer wall of the mounting base 12 away from the main body 11, and the first external thread 121 is used to fix the position of the valve body 1. Auxiliary rings 111 are fixedly connected to the outer walls on both sides of the main body 11 along the axis of the main body 11. The cross-section of the outer wall of the auxiliary ring 111 is hexagonal. A connecting ring 112 is fixedly connected to the outer wall of the auxiliary ring 111 away from the mounting base 12. The surface of the connecting ring 112 away from the mounting base 12 is flush with the end of the main body 11 along the axis of the main body 11.

[0050] Reference Figure 2 The mounting base 12 has a coaxially arranged receiving cavity 13 at the end away from the main body 11. The two ends of the main body 11 are respectively coaxially provided with a liquid inlet 116 and a liquid outlet 117. Both the liquid inlet and the liquid outlet 117 have a first internal thread 118 on their inner walls. A liquid outlet channel 113 is provided on the cavity wall near the liquid outlet 117, and the liquid outlet channel 113 communicates with the liquid outlet 117. A liquid inlet channel 114 is provided on the inner wall of the liquid inlet 116 near the receiving cavity 13, and the liquid inlet channel 114 is located below the receiving cavity 13. A connecting hole 115 is provided at the bottom of the receiving cavity 13, and the connecting hole 115 communicates with the liquid inlet channel 114. A protruding ring 119 is fixedly connected to the bottom of the receiving cavity 13, and the inner wall of the protruding ring 119 is flush with the wall of the connecting hole 115.

[0051] Reference Figure 2 and Figure 3 A water-cooled shut-off valve also includes a valve cover 2 and a first sealing ring 61. One end of the valve cover 2 is coaxially embedded in the receiving cavity 13. An abutment ring 21 is coaxially fixedly connected to the outer periphery of the valve cover 2. The abutment ring 21 abuts against the end of the mounting seat 12 away from the main body 11. A second internal thread 122 is provided on the cavity wall of the receiving cavity 13 on the side away from the main body 11. A second external thread 22 is provided on the outer wall of the valve cover 2 near the end of the main body 11. The second external thread 22 is threadedly connected to the second internal thread 122. An auxiliary groove 23 is provided on the outer wall of the valve cover 2 at the end away from the main body 11. There are two auxiliary grooves 23, which are symmetrically distributed along the axis perpendicular to the valve cover 2. A first sealing groove 24 is provided on the outer wall of the valve cover 2 near the bottom of the cavity 13. The side wall of the first sealing groove 24 away from the main body 11 is flush with the surface of the abutment ring 21 near the main body 11. A first annular groove 123 is provided on the inner wall of the cavity 13 away from the main body 11. A first sealing ring 61 is embedded in the first sealing groove 24. The outer wall of the first sealing ring 61 abuts against the bottom of the first annular groove 123 and the bottom of the first sealing groove 24.

[0052] A water-cooled shut-off valve also includes a decorative cover 5, which is coaxially connected to the outer periphery of a valve cover 2. A retaining ring 51 is coaxially fixedly connected to the side of the decorative cover 5 closest to the main body 11. A groove 511 is coaxially provided on the inner wall of the retaining ring 511 for abutment ring 21 to be inserted. The outer wall of the decorative cover 5 is inclined towards the main body 11. A connecting sleeve 52 is coaxially fixedly connected to the end of the decorative cover 5 furthest from the main body 11. The connecting sleeve 52 is fitted onto the outer periphery of the valve cover 2. A third internal thread 521 is provided on the inner wall of the connecting sleeve 52. A third external thread 25 is provided on the outer periphery of the end of the valve cover 2 furthest from the main body 11, and the third external thread 25 is threadedly connected to the third internal thread 521.

[0053] Reference Figure 4 A water-cooled shut-off valve further includes a valve stem 3, a retaining ring 63, and a second sealing ring 62. The valve stem 3 includes a rotating section 31, which includes a fixed part 311. The valve cover 2, at the end away from the main body 11, is coaxially provided with a rotating groove 26. The fixed part 311 is coaxially rotatably embedded in the rotating groove 26, and the side wall of the fixed part 311 is in contact with the groove wall of the rotating groove 26. A positioning ring 3111 is coaxially fixedly connected to the outer wall of the fixed part 311 near the main body 11. The rotating groove 26, at the groove wall near the main body 11, is coaxially provided with a positioning groove 27. The positioning ring 3111 is embedded in the positioning groove 27, and the surface of the positioning ring 3111 away from the main body 11 abuts against the bottom of the positioning groove 27. The groove wall of the positioning groove 27, at the groove wall near the main body 11, is provided with a first chamfer 29. A second annular groove 3112 is coaxially provided on the outer wall of the fixing part 311. The side wall of the second annular groove 3112 near the main body 11 is flush with the end of the valve cover 2 away from the main body 11. A retaining spring 63 is embedded in the second annular groove 3112, and the surface of the retaining spring 63 near the main body 11 abuts against the end of the valve cover 2 away from the main body 11. A plurality of second sealing grooves 3113 are provided on the outer wall of the fixing part 311. The second sealing grooves 3113 are located between the positioning ring 3111 and the second annular groove 3112, and the plurality of second sealing grooves 3113 are distributed at intervals along the rotation axis of the rotating section 31. In this embodiment, there are two second sealing grooves 3113. The number of second sealing rings 62 is the same as the number of second sealing grooves 3113 and corresponds one-to-one. The second sealing rings 62 are embedded in the second sealing grooves 3113, and the outer wall of the second sealing rings 62 abuts against the bottom of the second sealing groove 3113 and the wall of the rotating groove 26.

[0054] Reference Figure 4 and Figure 5A water-cooled shut-off valve further includes a valve disc 4 and a mounting ring 7. The valve stem 3 also includes a sliding section 32, one end of which is coaxially slidably embedded in a positioning groove 27, and the other end of which extends into a receiving cavity 13. A limiting ring 28 is coaxially fixedly connected to the wall of the positioning groove 27. The inner wall of the limiting ring 28 has a hexagonal cross-section, and the inner wall of the limiting ring 28 fits against the outer wall of the sliding section 32. The distance from any point on the inner wall of the limiting ring 28 to the valve seat axis is not less than the distance from any point on the outer wall of the positioning ring 3111 to the valve cover 2 axis. In this embodiment, the distance from any point on the inner wall of the limiting ring 28 to the valve seat axis is greater than the distance from any point on the outer wall of the positioning ring 3111 to the valve cover 2 axis. A connecting post 3114 is coaxially fixedly connected to one end of the fixing part 311 near the main body 11. A connecting groove 321 is coaxially provided at the end of the sliding section 32 away from the main body 11. A second chamfer 324 is provided on the groove wall of the connecting groove 321 away from the main body 11. The second chamfer 324 is used to abut against the end of the connecting post 3114 away from the fixing part 311. The connecting post 3114 is coaxially embedded in the connecting groove 321. A fourth external thread 31141 is provided on the outer wall of the connecting post 3114, and a fourth internal thread 322 is provided on the groove wall of the connecting groove 321. The fourth external thread 31141 and the fourth internal thread 322 are threadedly connected. A mounting post 323 is coaxially fixedly connected to one end of the sliding section 32 near the main body 11. A third annular groove 3231 is provided on the outer periphery of the mounting post 323. A mounting ring 7 is coaxially slidably connected to the outer periphery of the mounting post 323. A mounting groove 71 is coaxially provided on the inner wall of the end of the mounting ring 7 away from the sliding section 32. The bottom of the mounting groove 71 is flush with the side wall of the third annular groove 3231 near the sliding section 32. The inner side of the valve disc 4 is embedded in the third annular groove 3231, and the outer side of the valve disc 4 is embedded in the mounting groove 71. The end of the valve disc 4 away from the bottom of the mounting groove 71 is used to abut against the protruding ring 119 to close the connecting hole 115.

[0055] Reference Figure 4 and Figure 6The rotating section 31 also includes an extension portion 312 and a first connecting assembly 313. The extension portion 312 is coaxially and fixedly connected to the end of the fixing portion 311 away from the connecting post 3114. Several extension portions 312 are provided, and these extension portions 312 are evenly distributed along the axial direction of the extension portion 312. In this embodiment, two extension portions 312 are provided. One end of the extension portion 312 abuts against the end of the fixing portion 311 away from the connecting post 3114. A first protrusion 3115 is fixedly connected to the end of the fixing portion 311 away from the connecting post 3114. The cross-section of the first protrusion 3115 is square. The extension portion 312 has a first groove 3121 at one end near the fixing portion 311. A first protrusion 3115 is used to embed into the first groove 3121, and the sidewall of the first protrusion 3115 fits against the groove wall of the first groove 3121. The outer periphery of the end of the first protrusion 3115 away from the fixing portion 311 has a first rounded corner 31151, which abuts against the groove wall of the first groove 3121. A plurality of first sliding grooves 31152 are provided on the sidewall of the first protrusion 3115, and the plurality of first sliding grooves 31152 are circumferentially spaced around the axis of the fixing portion 311. In this embodiment, there are four first sliding grooves 31152, and the four first sliding grooves 31152 are evenly distributed circumferentially around the axis of the fixing portion 311. The first connecting component 313 includes a first fixing block 3131 and a first resetting member 3132. The number of first fixing blocks 3131 is the same as the number of first sliding grooves 31152 and they correspond one-to-one. One end of the first fixing block 3131 is slidably embedded in the first sliding groove 31152, and the sliding direction of the first fixing block 3131 is perpendicular to the axial direction of the fixing part 311. The first groove 3121 has a first fixing groove 3122 on its groove wall. The number of first fixing grooves 3122 is the same as the number of first fixing blocks 3131 and they correspond one-to-one. The first fixing block 3131 is used to be embedded in the first fixing groove 3122. The end of the first fixing block 3131 away from the bottom of the first sliding groove 31152 has a third chamfer 31311, which is used to abut against the groove wall of the first groove 3121. A first guide groove 3116 is provided on one side wall of the first slide groove 31152 near the connecting post 3114. A first guide block 3133 is fixedly connected to the side wall of the first fixing block 3131, and the first guide block 3133 is slidably embedded in the first guide groove 3116. A first reset member 3132 is connected between the first guide block 3133 and the fixing part 311. The first reset member 3132 causes the first fixing block 3131 to tend to extend out of the first slide groove 31152. In this embodiment, the first reset member 3132 is a spring. One end of the first reset member 3132 is connected to the end of the first guide block 3133 near the bottom of the first slide groove 31152, and the other end of the first reset member 3132 is connected to the bottom of the first slide groove 31152. There are three first reset members 3132, which are evenly distributed along the axial direction of the fixing part 311.

[0056] Reference Figure 4 and Figure 7 The rotating section 31 also includes a connecting portion 315 and a second connecting assembly 314. The connecting portion 315 is coaxially and fixedly connected to the end of the extension portion 312 away from the fixed portion 311. A second protrusion 3123 is fixedly connected to the end of the extension portion 312 away from the fixed portion 311. The cross-section of the second protrusion 3123 is square. A second groove 3151 is provided at the end of the connecting portion 315 near the fixed portion 311. The second protrusion 3123 is used to be embedded in the first groove 3121 or the second groove 3151. The sidewall of the second protrusion 3123 fits against the groove wall of the first groove 3121 or the second groove 3151. A second rounded corner 31231 is provided on the outer periphery of the end of the second protrusion 3123 away from the extension portion 312. The second rounded corner 31231 is used to abut against the groove wall of the first groove 3121 or the groove wall of the second groove 3151.

[0057] Reference Figure 6 and Figure 7 The second connecting assembly 314 includes a first rack 3141, a second rack 3142, a gear 3143, a baffle 3144, and a third reset member 3145. The baffle 3144 is slidably embedded in the first groove 3121, and the groove wall of the baffle 3144 is in contact with the groove wall of the first groove 3121. The third reset member 3145 is connected between the baffle 3144 and the extension 312, and the third reset member 3145 makes the side surface of the baffle 3144 away from the bottom of the first groove 3121 tend to be flush with the end of the extension 312 near the fixed part 311. In this embodiment, the third reset member 3145 is a spring, the bottom of the first groove 3121 is provided with a fourth annular groove 3124, one end of the third reset member 3145 is connected to the bottom of the fourth annular groove 3124, and the other end of the third reset member 3145 is connected to the side surface of the baffle 3144 near the bottom of the first groove 3121. The extension 312 is provided with a first connecting groove 3125, which communicates with the first recess 3121. A gear 3143 is rotatably fitted into the first connecting groove 3125, and the axis of rotation of the gear 3143 is perpendicular to the axis of the extension 312. A first rack 3141 is slidably fitted into the first connecting groove 3125, and the sliding direction of the first rack 3141 is parallel to the axial direction of the extension 312. The first rack 3141 meshes with the gear 3143, and one end of the first rack 3141 is fixedly connected to the side surface of the baffle 3144 near the bottom of the first recess 3121. The second rack 3142 is slidably embedded in the first connecting groove 3125. The sliding direction of the second rack 3142 is parallel to the sliding direction of the first rack 3141. The end of the second rack 3142 away from the baffle 3144 extends out of the extension 312. The end of the second rack 3142 away from the baffle 3144 is used to abut against the bottom of the first groove 3121 or the second groove 3151. The second rack 3142 meshes with the gear 3142.

[0058] The second connecting assembly 314 further includes a slide rod 3146, a second fixing block 3147, an abutment block 3148, and a second reset member 3149. The side wall of the second protrusion 3123 is provided with a plurality of second sliding grooves 31232, the number of which is the same as the number of the first sliding grooves 31152 and corresponds one-to-one. One end of the second fixing block 3147 is slidably embedded in the second sliding groove 31232, and the sliding direction of the second fixing block 3147 is perpendicular to the axial direction of the extension 312. The second groove 3151 has a second fixing groove 3152 on its groove wall. The number of second fixing grooves 3152 is the same as the number of second fixing blocks 3147 and they correspond one-to-one. The second fixing blocks 3147 are used to be embedded in the first fixing groove 3122 or the second fixing groove 3152. The end of the second fixing block 3147 away from the bottom of the second sliding groove 31232 has a fourth chamfer 31471, which is used to abut against the groove wall of the first groove 3121 or the groove wall of the second groove 3151. The bottom of the second fixing groove 3152 has an unlocking hole 3153, which is connected to the outside. The second sliding groove 31232 has a second guide groove 3126 on the groove wall near the fixing part 311. The second guide block 31410 is fixedly connected to the side wall of the second fixing block 3147 and slides within the second guide groove 3126. The second reset member 3149 is connected between the second guide block 31410 and the extension 312. The second reset member 3149 causes the second fixing block 3147 to tend to embed into the second sliding groove 31232. In this embodiment, the second reset member 3149 is a spring. One end of the second reset member 3149 is connected to the end of the second guide block 31410 near the bottom of the second sliding groove 31232, and the other end of the second reset member 3149 is connected to the bottom of the second sliding groove 31232. There are three second reset members 3149, which are evenly distributed along the axial direction of the fixing part 311. The first fixing groove 3122 has a second connecting groove 3127 on the side wall away from the fixing part 311. The number of sliding rods 3146 and abutment blocks 3148 is the same as the number of second fixing blocks 3147 and they correspond one-to-one. The sliding rods 3146 are slidably embedded in the second connecting groove 3127, and the sliding direction of the sliding rods 3146 is parallel to the axial direction of the extension 312. One end of the slide rod 3146 near the fixing part 311 is used to abut against the third chamfer 31311. The second guide groove 3126 has a third slide groove 3128 on one side of the groove wall near the fixing groove. The abutment block 3148 is slidably embedded in the third slide groove 3128. The sliding direction of the abutment block 3148 is parallel to the sliding direction of the second fixing block 3147. One end of the abutment block 3148 near the axis of the extension part 312 is fixedly connected to the end of the second guide block 31410 away from the second fixing block 3147.A third guide groove 3129 is provided on the side wall of the third slide groove 3128 away from the second guide groove 3126. A third guide block 31481 is fixedly connected to the side wall of the abutment block 3148. The third guide block 31481 is slidably embedded in the third guide groove 3129. A fifth chamfer 314811 is provided at the end of the third guide block 31481 near the fixing part 311. The fifth chamfer 314811 is located on the side of the third guide block 31481 near the axis of the extension part 312. The fifth chamfer 314811 is used to abut against the end of the slide rod 3146 away from the first fixing groove 3122.

[0059] Reference Figure 1 and Figure 2 A water-cooled shut-off valve also includes an adjustment component 8, which includes a knob 81. The knob 81 is coaxially fixedly connected to the end of the connecting part 315 away from the main body 11. The outer circumference of the knob 81 is provided with a plurality of curved grooves 811, which are circumferentially spaced around the axis of the knob 81. In this embodiment, there are eight curved grooves 811, which are evenly distributed around the axis of the knob 81. The end of the knob 81 near the main body 11 is coaxially provided with a lower recess 812, and the other end of the knob 81 is coaxially provided with an upper recess 813. The knob 81 is coaxially fixedly connected with a fixing post 814, the two ends of which are located in the lower recess 812 and the upper recess 813, respectively.

[0060] Reference Figure 2 and Figure 8 The end of the connecting part 315 away from the extension part 312 is coaxially fixedly connected to a limiting post 3154, which has a toothed cross-section. The end of the fixing post 814 near the main body 11 is coaxially provided with a limiting groove 8141. The bottom of the limiting groove 8141 abuts against the end of the limiting post 3154 away from the rotating section 31, and the wall of the limiting groove 8141 fits against the wall of the limiting post 3154. The other end of the fixing post 814 is coaxially provided with a connecting hole 8142, which communicates with the limiting groove 8141. The adjusting assembly 8 also includes a fixing screw 82, a sealing plate 83, and a sealing ring 84. The shank of the fixing screw 82 passes through the connecting hole 8142 and is threadedly connected to the limiting post 3154. The head of the fixing screw 82 abuts against the end of the fixing post 814 away from the main body 11. The sealing plate 83 is coaxially embedded in the upper concave cavity 813, and the sealing ring 84 is coaxially embedded in the upper concave cavity 813. The outer wall of the sealing ring 84 abuts against the side wall of the sealing plate 83 and the cavity wall of the upper concave cavity 813.

[0061] The implementation principle of a water-heating shut-off valve according to an embodiment of this application is as follows: During assembly, the mounting ring 7 is sleeved on the outer periphery of the mounting post 323, and then the valve disc 4 is embedded in the mounting groove 71, so that the inner side of the valve disc 4 is embedded in the third ring groove 3231. Select an appropriate number of extension parts 312 and connect the extension parts 312 to the connecting part 315 in sequence. The second rounded corner 31231 of the first extension part 312 abuts against the groove wall of the second groove 3151, and the second protrusion 3123 is embedded in the second groove 3151. The bottom of the second groove 3151 abuts against the second rack 3142, pushing the second rack 3142 to slide, driving the gear 3143 to rotate, driving the first rack 3141 to slide, driving the baffle 3144 to slide, and then the second rounded corner 31231 of the next extension part 312 abuts against the groove wall of the first groove 3121, and the second protrusion 3123 is embedded in the first groove 3121. The fixing part 311 is then connected to the extension part 312. The first rounded corner 31151 abuts against the first groove 3121, the first protrusion 3115 is embedded in the first groove 3121, the first sliding groove 31152 is aligned with the first fixing groove 3122, the first fixing block 3131 is embedded in the first fixing groove 3122, the third chamfer 31311 abuts against the sliding rod 3146, the sliding rod 3146 slides against the fifth chamfer 314811, and the second fixing block 3147 is pushed out of the second sliding groove 31232 and then embedded in the first fixing groove 3122 or the second fixing groove 3152, thus realizing the assembly of the rotating section 31.

[0062] Slide the sliding section 32 close to the rotating section 31, and the connecting post 3114 abuts against the second chamfer 324. Rotate the rotating section 31 to drive the connecting section to rotate, so that the fourth external thread 31141 and the fourth internal thread 322 are threadedly connected. Rotate the rotating section 31 until the sliding section 32 abuts against the positioning ring 3111.

[0063] The second sealing ring 62 is embedded in the second sealing groove 3113, and then one end of the rotating section 31 is abutted against it. The rotating section 31 passes through the rotating groove 26 and extends out of the valve cover 2. The positioning ring 3111 abuts against the bottom of the positioning groove 27. The snap ring 63 is embedded in the second ring groove 3112, so that the snap ring 63 abuts against the end of the valve cover 2 away from the first chamfer 29.

[0064] The decorative cover 5 is fitted onto the outer periphery of the valve cover 2. The decorative cover 5 is rotated so that the third internal thread 521 is threadedly connected to the third external thread 25. The decorative cover 5 is rotated until the abutment ring 21 is embedded in the groove 511.

[0065] The limiting post 3154 is embedded in the limiting groove 8141, and the fixing screw 82 is threaded through the connecting hole 8142 and connected to the limiting post 3154, so that the head of the fixing screw 82 abuts against the fixing post 814. The sealing plate 83 is embedded in the upper concave cavity 813, and then the sealing ring 84 is embedded in the upper concave cavity 813, with the sealing ring 84 abutting against the sealing plate 83 and the cavity wall of the upper concave cavity 813.

[0066] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A water-cooled shut-off valve, characterized in that: The valve includes a valve body (1), a valve stem (3), and a valve disc (4); the valve stem (3) includes a rotating section (31) and a sliding section (32); the valve body (1) has a receiving cavity (13); the receiving cavity (13) has a liquid outlet channel (113) on its wall; the liquid outlet channel (113) is connected to the outside; the valve body (1) has a liquid inlet channel (114); the liquid inlet channel (114) is located below the receiving cavity (13); the bottom of the receiving cavity (13) has a connecting hole (115); the connecting hole (115) It is connected to the inlet channel (114); the sliding section (32) is slidably embedded in the receiving cavity (13); the sliding direction of the sliding section (32) is parallel to the length direction of the sliding section (32); the valve disc (4) is connected to the lower end of the sliding section (32); the valve disc (4) is used to close the connecting hole (115); the rotating section (31) is rotatably connected to the valve body (1); the rotation axis of the rotating section (31) is parallel to the rotation axis of the sliding section (32); the rotating section (31) and the sliding section (32) are threadedly connected.

2. The water heating shut-off valve according to claim 1, characterized in that: It also includes a valve cover (2) and a retaining ring (63); one end of the valve cover (2) is located in the receiving cavity (13); the valve cover (2) is provided with a rotating groove (26); the rotating section (31) is rotatably embedded in the rotating groove (26); the rotating groove (26) is provided with a positioning groove (27) at the groove wall near the receiving cavity (13); a positioning ring (3111) is connected to the outer periphery of the rotating section (31); the positioning ring (3111) is embedded in the positioning groove (27); a second ring groove (3112) is provided on the outer wall of the rotating section (31); the retaining ring (63) is embedded in the second ring groove (3112); the retaining ring (63) abuts against the end of the valve cover (2) away from the receiving cavity (13).

3. The water heating shut-off valve according to claim 2, characterized in that: The positioning groove (27) is connected to a limiting ring (28) at the groove wall; the inner wall of the limiting ring (28) has a hexagonal cross section; the end of the sliding section (32) away from the valve disc (4) is slidably embedded in the positioning groove (27); the side wall of the sliding section (32) is in contact with the inner wall of the limiting ring (28).

4. The water heating shut-off valve according to claim 3, characterized in that: The distance from any point on the inner wall of the limiting ring (28) to the valve seat axis is not less than the distance from any point on the outer wall of the positioning ring (3111) to the valve seat axis.

5. The water heating shut-off valve according to claim 2, characterized in that: It also includes a first sealing ring (61) and a second sealing ring (62); the valve cover (2) is provided with a first sealing groove (24) on its outer periphery; the first sealing ring (61) is embedded in the first sealing groove (24); the outer wall of the first sealing ring (61) abuts against the bottom of the first sealing groove (24) and the cavity wall of the receiving cavity (13); the rotating section (31) is provided with a second sealing groove (3113) on its outer periphery; the second sealing ring (62) is embedded in the second sealing groove (3113); the outer wall of the second sealing ring (62) abuts against the bottom of the second sealing groove (3113) and the groove wall of the rotating groove (26).

6. The water heating shut-off valve according to claim 2, characterized in that: The rotating section (31) includes a fixed part (311), an extension part (312), and a connecting part (315); the fixed part (311) is rotatably embedded in the rotating groove (26); the extension part (312) is coaxially connected to the end of the fixed part (311) away from the receiving cavity (13); there are a plurality of extension parts (312); the plurality of extension parts (312) are evenly distributed along the axial direction of the extension part (312); the connecting part (315) is coaxially connected to the end of the extension part (312) away from the fixed part (311).

7. The water heating shut-off valve according to claim 6, characterized in that: The fixing part (311) is connected to a first protrusion (3115) at one end away from the receiving cavity (13); the extension part (312) is provided with a first groove (3121) at one end near the fixing part (311); the first protrusion (3115) is used to be embedded in the first groove (3121); the side wall of the first protrusion (3115) is in contact with the groove wall of the first groove (3121); the extension part (312) is connected to a second protrusion (3123) at one end away from the first groove (3121); the connecting part (315) is provided with a second groove (3151) at one end near the extension part (312); the second protrusion (3123) is used to be embedded in an adjacent first groove (3121) or second groove (3151); the second protrusion (3123) is in contact with the groove wall of the first groove (3121) or the groove wall of the second groove (3151).

8. The water heating shut-off valve according to claim 7, characterized in that: It also includes a baffle (3144) and a third reset member (3145); the baffle (3144) is slidably embedded in the first groove (3121); the side wall of the baffle (3144) is in contact with the groove wall of the first groove (3121); the third reset member (3145) is connected between the baffle (3144) and the extension (312); the third reset member (3145) makes the side surface of the baffle (3144) away from the bottom of the first groove (3121) tend to be flush with the end of the extension (312) near the fixed part (311).

9. The water heating shut-off valve according to claim 1, characterized in that: It also includes a knob (81); the knob (81) is coaxially connected to the end of the rotating section (31) away from the sliding section (32); the knob (81) is provided with a number of curved grooves (811) on its outer periphery; the number of curved grooves (811) are distributed circumferentially around the axis of the knob (81).

10. The water-heating shut-off valve according to claim 1, characterized in that: It also includes a decorative cover (5); the decorative cover (5) is attached to the outer periphery of the valve cover (2).

Images