An ultra-thin cock valve

Abstract

This invention discloses an ultra-thin plug valve, comprising: a valve housing assembly having a valve core cavity and a control cavity arranged in parallel with an open top; the valve housing assembly having an air inlet channel and an air outlet channel respectively communicating with the valve core cavity; a valve core assembly movably inserted into the valve core cavity for controlling the on / off state of the air inlet channel and the air outlet channel; a rotating shaft assembly movably inserted into the control cavity; and a transmission assembly disposed on the top of the valve housing assembly and locked or unlocked from the rotating shaft assembly. When the rotating shaft assembly is locked to the transmission assembly, the rotating shaft assembly can link the valve core assembly through the transmission assembly. The ultra-thin plug valve of this invention has a compact structure, which facilitates the flattening of the valve body, saving internal space in the stove and reducing the space occupied by the stove in the cabinet.

Description

Technical Field

[0001] This invention relates to the field of plug valve technology, and more particularly to an ultra-thin plug valve. Background Technology

[0002] The stopcock valve assembly is an important component of an embedded gas stove. In existing technology, the assembly structure of the gas stove and the stopcock valve assembly is generally as follows: the stopcock valve assembly is fixed to the gas valve mounting seat via a flange plate and rubber sealing gasket at the air inlet channel. Then, the gas valve mounting seat is connected and fixed to the air inlet pipe assembly and fastened together to the bottom shell with screws. The valve core and rotating shaft of existing stopcock valves adopt a vertical series connection structure, so the thickness of the stopcock valve ranges from 30mm to 50mm. Adding the thickness of the gas valve mounting seat (20mm to 30mm), the thickness of the stove bottom shell accommodating and fixing the stopcock valve is ≥80mm.

[0003] Because the stopcock valve is too thick, it is not convenient to save internal space of the stove. It also makes the overall height of the gas stove relatively high. When embedded in the cabinet, it occupies the cabinet space and may interfere with other appliances in the cabinet, causing trouble for the overall use of the cabinet. This results in low utilization of the cabinet space under the stove and reduces the user experience. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, the present invention proposes an ultra-thin plug valve with a compact structure, which is conducive to the flattening of the valve body, which can not only save internal space of the stove, but also reduce the space occupied by the stove in the cabinet.

[0005] The ultra-thin plug valve described above is achieved through the following technical solution:

[0006] An ultra-thin plug valve includes: a valve housing assembly having a valve core cavity and a control cavity arranged in parallel on both sides with an open top; the valve housing assembly having an air inlet channel and an air outlet channel respectively communicating with the valve core cavity; a valve core assembly movably inserted into the valve core cavity for controlling the on / off state of the air inlet channel and the air outlet channel; a rotating shaft assembly movably inserted into the control cavity; and a transmission assembly disposed on the top of the valve housing assembly and locked or unlocked from the rotating shaft assembly, wherein when the rotating shaft assembly is locked to the transmission assembly, the rotating shaft assembly can drive the valve core assembly through the transmission assembly.

[0007] In some embodiments, the transmission assembly includes a driving wheel and a driven wheel. The driving wheel is sleeved outside the rotating shaft assembly and is locked or unlocked from the rotating shaft assembly. The driven wheel is sleeved outside the upper end of the valve core assembly and meshes with the driving wheel.

[0008] In some embodiments, the drive wheel has a lower slot located outside the shaft assembly, and the shaft assembly has a locking part located directly above the lower slot, the locking part being movable between being inserted downward into the lower slot and being moved upward away from the lower slot.

[0009] In some embodiments, a flange plate is provided at the lower end of the outer side wall of the valve housing assembly, and the air intake channel includes a lower transverse section, a connecting section and an upper transverse section connected in sequence in a "Z" shape. The end of the lower transverse section away from the connecting section transversely penetrates the flange plate, and the end of the upper transverse section away from the connecting section is connected to the valve core cavity.

[0010] In some embodiments, the air outlet channel includes: an inner ring air channel, which is located on opposite outer sides of the valve core cavity, and the air inlet end of the inner ring air channel is connected to the valve core cavity; and an outer ring air channel, which includes an air inlet section and an air outlet section, wherein the air outlet section is arranged side by side with the inner ring air channel at intervals, the air inlet section is arranged obliquely in the vertical direction, the higher end of the air inlet section is located above the inner ring air channel and is connected to the valve core cavity, and the lower end of the air inlet section is connected to the air outlet section.

[0011] In some embodiments, the valve core assembly includes a conical valve core and an elastic element. The conical valve core is rotatably inserted into the valve core cavity and seals against the cavity sidewall. The conical valve core has an air guide channel and a cavity with a top opening. The air inlet channel is selectively connected to the air outlet channel through the air guide channel. At least the elastic element is disposed within the cavity and is configured to press the conical valve core tightly against the valve core cavity.

[0012] In some embodiments, the rotating shaft assembly includes a valve cover, a valve stem, and a positioning plate. The valve cover is detachably connected to the valve housing assembly and covers the top opening of the control cavity. The valve cover has a downward-opening lower limiting groove and a shaft hole. The shaft hole communicates with the control cavity through the lower limiting groove. The valve stem passes vertically through the shaft hole and its lower end extends into the control cavity. The positioning plate is sleeved on the lower end of the valve stem and is movable between the lower limiting groove and the control cavity. The transmission assembly is disposed on the top of the valve cover and is locked or unlocked to the valve stem.

[0013] In some embodiments, a signal switch and a rotating assembly are also included. An opening communicating with the control cavity is provided on the side wall of the valve housing assembly. The signal switch is disposed outside the control cavity and has a spring plate. The spring plate extends into the control cavity through the opening. The rotating assembly is rotatably disposed inside the control cavity. The rotating shaft assembly can release or press the spring plate through the rotating assembly.

[0014] In some embodiments, the rotating assembly includes a rotating body and a paddle. The bottom of the valve housing assembly has a through hole communicating with the control cavity. The rotating body is rotatably disposed in the control cavity and its lower end is inserted into the through hole. The upper end of the rotating body has an upward-opening groove. The paddle is sleeved on the rotating body and is used to release or press the spring. The lower end of the rotating shaft assembly is movably inserted into the groove.

[0015] In some embodiments, the control cavity has an annular slide rail arranged in a circumferential direction on its cavity sidewall, and the paddle has a first lug extending outward for releasing or pressing the spring piece, the first lug being slidable along the annular slide rail.

[0016] In some embodiments, the rotating assembly further includes an elastic connector, which is respectively sleeved on the upper end of the rotating body and the lower end of the valve stem of the rotating shaft assembly, and the elastic connector is sandwiched between the paddle and the positioning plate of the rotating shaft assembly.

[0017] In some embodiments, a cover plate is also included, which covers the transmission assembly and is detachably connected to the valve housing assembly. The cover plate presses the valve core assembly tightly into the valve core cavity, and the valve stem of the rotating shaft assembly is vertically inserted through the mounting hole of the cover plate, allowing it to move up and down.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] The plug valve of the present invention has a valve core cavity and a control cavity arranged in parallel on the left and right sides on the valve body assembly. The valve core assembly is inserted into the valve core cavity, the rotating shaft assembly is inserted into the control cavity, and the transmission assembly is set on the top of the valve body assembly and locked or unlocked with the rotating shaft assembly. When the rotating shaft assembly and the transmission assembly are locked, the rotating shaft assembly can link the valve core assembly through the transmission assembly. The structure is compact and realizes the transformation of the commonly used vertical series connection structure into a horizontal parallel connection structure, so that the "straight stack" in the height direction becomes "flat" in the horizontal direction. The valve body is flat, which can save internal space of the stove and reduce the space occupied by the stove in the cabinet. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the ultra-thin plug valve in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the ultra-thin plug valve in an embodiment of the present invention, with the cover plate omitted.

[0022] Figure 3 This is a schematic diagram of the valve housing assembly in an embodiment of the present invention;

[0023] Figure 4 This is a half-sectional view of the ultra-thin plug valve in an embodiment of the present invention. Figure 1 ;

[0024] Figure 5 This is a schematic diagram of the structure of the rotating shaft assembly in an embodiment of the present invention. Figure 1 ;

[0025] Figure 6 This is a schematic diagram of the structure of the rotating shaft assembly in an embodiment of the present invention. Figure 2 ;

[0026] Figure 7 This is a schematic diagram of the valve cover structure in an embodiment of the present invention;

[0027] Figure 8 yes Figure 1 A magnified view of part A in the middle;

[0028] Figure 9 This is a half-sectional view of the ultra-thin plug valve in an embodiment of the present invention. Figure 2 ;

[0029] Figure 10 This is a schematic diagram of the structure of the ultra-thin plug valve in an embodiment of the present invention;

[0030] Figure 11 This is a schematic diagram of the cover plate in an embodiment of the present invention.

[0031] In the figure: 1-valve housing assembly, 10-flange plate, 11-valve core cavity, 12-control cavity, 121-opening, 122-through hole, 123-annular slide, 124-limiting block, 131-lower transverse section, 132-connecting section, 133-upper transverse section, 14-inner annular air passage, 151-inlet section, 152-outlet section, 16-support platform;

[0032] 2-Valve core assembly, 21-Conical valve core, 210-Air guide channel, 211-Cavity, 22-Elastic element;

[0033] 3-Shaft assembly, 30-Locking part, 31-Valve cover, 311-Lower limit groove, 312-Shaft hole, 313-Notch, 314-Upper limit groove, 32-Valve stem, 321-Limiting part, 33-Positioning plate, 331-Lock tongue, 34-Elastic group, 35-Snap ring;

[0034] 4-Transmission assembly, 41-Driving wheel, 411-Lower groove, 42-Driven wheel;

[0035] 5 - Signal switch, 51 - Spring contact;

[0036] 6-Rotating assembly, 61-Rotating body, 611-Groove, 612-Protruding edge, 62-Pulley, 621-First lug, 622-Second lug, 63-Elastic connector;

[0037] 7-Cover plate, 711-Cavity, 712-Sunk, 72-Upper slot, 73-Annular boss, 731-Vertical strip hole. Detailed Implementation

[0038] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific embodiments of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solutions claimed in the present invention.

[0039] refer to Figure 1-2 This embodiment provides an ultra-thin plug valve for use in a gas stove (i.e., a cooktop). The ultra-thin plug valve includes a valve housing assembly 1, a valve core assembly 2, a rotating shaft assembly 3, and a transmission assembly 4. The valve housing assembly 1 has a valve core cavity 11 with an open top and a control cavity 12 with an open top. The valve core cavity 11 and the control cavity 12 are arranged in parallel horizontally. This arrangement, compared to the existing series arrangement of the valve core cavity 11 and control cavity 12 in the vertical direction, transforms the vertical "straight stacking" into a horizontal "flat" or parallel arrangement, resulting in a flattened valve housing assembly 1. The valve housing assembly 1 also has an inlet channel (not shown in the figure) and an outlet channel (not shown in the figure) respectively connecting to the valve core cavity 11.

[0040] The valve core assembly 2 is movably inserted into the valve core cavity 11 to control the on / off state of the air intake and air outlet channels. The rotating shaft assembly 3 is movably inserted into the control cavity 12. The transmission assembly 4 is located on the top of the valve body assembly 1 and is locked or unlocked from the rotating shaft assembly 3. When the rotating shaft assembly 3 is locked to the transmission assembly 4, the rotating shaft assembly 3 can drive the valve core assembly 2 to rotate through the transmission assembly 4, thereby controlling the air outlet state of the valve body (i.e., the ultra-thin plug valve). When the rotating shaft assembly 3 is unlocked from the transmission assembly 4, the rotating shaft assembly 3 can rotate or move up and down relative to the transmission assembly 4. In this case, the rotating shaft assembly 3 cannot drive the valve core assembly 2 through the transmission assembly 4.

[0041] As can be seen, by arranging the valve core cavity 11 and the control cavity 12 in parallel, the valve core assembly 2 and the rotating shaft assembly 3 are transformed into a horizontally parallel connection structure. This changes the "straight stacking" of the two in the height direction to a "flat" horizontal direction. In this way, the valve body (i.e., the entire plug valve) has a compact structure, which is conducive to realizing the ultra-thin or flat design of the valve body. This can save internal space in the stove. The stove body with the valve body is thinner, freeing up more space in the cabinet and meeting the needs of users' overall kitchen. In addition, compared with the novel plug valve disclosed in the earlier patent application CN112032353A, the assembly of the valve core assembly 2, the rotating shaft assembly 3 and the transmission assembly 4 in this application is simpler. Moreover, the valve body of the valve body assembly 1 in this application can be integrally injection molded, reducing assembly steps.

[0042] refer to Figure 2-4 The valve housing assembly 1 consists of a valve housing, ball bearings, a plug, and a nozzle connector. The valve housing has a valve core cavity 11 and a control cavity 12 arranged in parallel on the left and right sides. The valve housing also has an inlet passage and an outlet passage respectively connecting to the valve core cavity 11. An opening 121 connecting to the control cavity 12 is provided on the side wall of the valve housing assembly 1. The opening 121 is configured to allow the spring piece 51 of the signal switch 5 to pass through. A through hole 122 connecting to the control cavity 12 is provided at the bottom of the valve housing assembly 1. The through hole 122 is configured to assemble the rotating body 61 in the rotating assembly 6. An annular slide 123 arranged in the circumferential direction is provided on the side wall of the control cavity 12. The annular slide 123 is connected to the control cavity 12 and is used to slide and connect the paddle 62 in the rotating assembly 6. In addition, at least one limiting structure is provided on the side wall of the control cavity 12 for limiting the paddle 62 in the upper and lower directions. In this embodiment, there are three limiting structures. Each limiting structure includes two limiting blocks 124 arranged in parallel in the upper and lower directions. The two limiting blocks are located on the upper and lower sides of the annular slide 123, respectively. Each limiting block 124 is integrally formed with the side wall of the control cavity 12.

[0043] A flange plate 10 is provided at the lower end of the outer wall of the valve housing of valve housing assembly 1. The plug valve is fixed to the bottom shell of the gas stove through the flange plate 10. In this embodiment, the air intake channel includes a lower transverse section 131, a connecting section 132, and an upper transverse section 133 connected in a "Z" shape. The end of the lower transverse section 131 away from the connecting section 132 passes through the flange plate 10 laterally, and the end of the upper transverse section 133 away from the connecting section 132 is connected to the valve core cavity 11. (Refer to...) Figure 4Therefore, by transversely penetrating the flange plate 10 at the end of the lower transverse section 131 away from the connecting section 132 to form an air inlet on the front of the flange plate 10, compared with some existing plug valves that open the air inlet on the bottom surface of the flange plate 10, it is easier to connect and fix the air inlet pipe assembly to the air inlet channel from the side of the valve body. This realizes the transformation of the connection and fixation of the air inlet pipe assembly and the air inlet channel from the vertical direction to the horizontal direction, which helps to reduce the space occupied in the height direction after the air inlet pipe assembly is connected and fixed to the valve body, further reducing the thickness of the entire stove body assembled with the valve body, and making the stove occupy less cabinet space.

[0044] Optionally, to facilitate the demolding of the intake channel and prevent deformation of the intake channel diameter during demolding, the upper end of the connecting section 132 penetrates the top of the valve housing, and a ball bearing seal is used to seal the upper end of the connecting section 132. (Refer to...) Figure 4 The end of the upper transverse section 133 furthest from the valve core cavity 11 penetrates the side wall of the valve body, and a ball seal is used to seal the radially outer end of the upper transverse section 133, as shown in the reference. Figure 4 .

[0045] The air outlet channel includes an inner ring air passage 14 and an outer ring air passage (not shown in the figure). The inner ring air passage 14 and the air inlet passage are located on opposite outer sides of the valve core cavity 11. The air inlet end of the inner ring air passage 14 is connected to the valve core cavity 11. In this embodiment, the bottom of the inner ring air passage 14 can be located on the same horizontal plane as the bottom of the lower transverse section 131 of the air inlet passage. The diameter of the inner ring air passage 14 is larger than the diameter of the lower transverse section 131.

[0046] The outer ring air passage includes an inlet section 151 and an outlet section 152. The outlet section 152 and the inner ring air passage 14 are arranged side by side with intervals. In this embodiment, the outlet section 152 and the inner ring air passage 14 can be parallel and at the same height. The inlet section 151 is arranged obliquely in the vertical direction. The higher end of the inlet section 151 is located above the inner ring air passage 14 and communicates with the valve core cavity 11. The lower end of the inlet section 151 communicates with the outlet section 152. In this embodiment, the end of the inlet section 151 away from the valve core cavity 11 is open and sealed with a plug. (Refer to...) Figure 4 .

[0047] In this embodiment, a support platform 16 extending outward and corresponding to the opening 121 is fixedly provided at the lower end of the outer side wall of the valve housing assembly 1. The support platform 16 is located below and behind the opening 121 and is used to support and fix the signal switch 5. (Refer to...) Figure 3 .

[0048] refer to Figure 4The valve core assembly 2 includes a conical valve core 21 and an elastic element 22. The conical valve core 21 is rotatably inserted into the valve core cavity 11 and seals against the cavity sidewall of the valve core cavity 11. The conical valve core 21 has an air guide channel 210 and a cavity 211 with a top opening. The air inlet channel is selectively connected to the air outlet channel through the air guide channel 210. At least the elastic element 22 is disposed in the cavity 211. The elastic element 22 is configured to press the conical valve core 21 tightly into the valve core cavity 11. In this embodiment, the lower end of the elastic element 22 is inserted into the cavity 211, and the upper end abuts against the cover plate 7, so that the elastic element 22 is sandwiched between the conical valve core 21 and the cover plate 7. Under the pre-tightening force of the elastic element 22, the conical valve core 21 can always seal against the cavity sidewall of the valve core cavity 11 to prevent air leakage at the mating point between the conical valve core 21 and the cavity sidewall of the valve core cavity 11.

[0049] refer to Figure 1 and Figure 5-8 The rotating shaft assembly 3 includes a valve cover 31, a valve stem 32, and a positioning plate 33. The valve cover 31 is detachably connected to the top of the valve housing of the valve housing assembly 1 and covers the top opening of the control cavity 12. The valve cover 31 has a downward-opening lower limiting groove 311 and a shaft hole 312. The shaft hole 312 communicates with the control cavity 12 through the lower limiting groove 311. The valve stem 32 is vertically inserted through the shaft hole 312 and its lower end extends into the control cavity 12. The positioning plate 33 is sleeved on the lower end of the valve stem 32 and locked or unlocked with the valve cover 31. The positioning plate 33 can move between the lower limit groove 311 and the control cavity 12. When the positioning plate 33 is locked with the valve cover 31, the positioning plate 33 is locked and fixed in the lower limit groove 311. Since the valve stem 32 cannot rotate relative to the positioning plate 33, the valve stem 32 cannot rotate relative to the valve cover 31, thus restricting the rotation of the valve stem 32 to form a "child lock". Conversely, when the valve stem 32 is pressed down, it drives the positioning plate 33 to move down until the positioning plate 33 is unlocked from the valve cover 31. The positioning plate 33 can move down into the control cavity 12 under the push of the valve stem 32. Since the positioning plate 33 is unlocked from the valve cover 31, the valve stem 32 can drive the positioning plate 33 to rotate or turn. The transmission assembly 4 is located on the top of the valve cover 31 and is locked or unlocked from the valve stem 32. After the valve stem 32 is locked to the transmission assembly 4, it can link the conical valve core 21 of the valve core assembly 2 through the transmission assembly 4.

[0050] refer to Figure 6-7The lower limiting groove 311 has a notch 313 on its sidewall to restrict the circumferential rotation of the positioning plate 33. This notch 313 connects to the lower limiting groove 311. The positioning plate 33 is integrally formed with an outwardly extending locking tongue 331. The locking tongue 331 can move between being inserted upward into the notch and being moved downward away from the notch, that is, the locking tongue can be selectively inserted into the notch. When the locking tongue is inserted into the notch, a "child lock" is formed. At this time, the valve stem 32 cannot drive the positioning plate 33 to rotate or turn relative to the valve cover 31. Only when the locking tongue 331 is pushed downward away from the notch, that is, after the "child lock" is released, can the valve stem 32 drive the positioning plate 33 to rotate or turn relative to the valve cover 31.

[0051] refer to Figure 8 To limit the valve stem 32 and ensure that the valve stem 32 can reliably push the positioning plate 33 downward when pressed down, the valve cover 31 is also provided with an upper limit groove 314 located between the lower limit groove 311 and the shaft hole 312. The lower limit groove 311 and the shaft hole 312 are connected through the upper limit groove 314. In this embodiment, the diameter of the lower limit groove 311 is greater than the diameter of the upper limit groove 314, which is greater than the diameter of the shaft hole 312. The valve stem 32 is integrally formed with an outwardly extending and annular limiting part 321 at the position corresponding to the upper limit groove 314. The limiting part 321 is clamped between the positioning plate 33 and the top surface of the upper limit groove 314. Thus, by the limiting part 321 abutting against the top surface of the upper limit groove 314, the valve stem 32 is prevented from detaching upward from the valve housing assembly 1 and the valve cover 31; by the limiting part 321 pressing the positioning plate 33, it is ensured that the valve stem 32 can reliably push the positioning plate 33 downward when pressed down.

[0052] refer to Figure 2 The rotating shaft assembly 3 is provided with a locking part 30, which is configured to lock or unlock with the transmission assembly 4. In this embodiment, the locking part 30 is a pin, which is mounted and fixed on the valve stem 32 and located above the transmission assembly 4. Furthermore, refer to... Figure 1 The rotating shaft assembly 3 also includes an elastic group 34 and a retaining ring 35. The retaining ring 35 is disposed above the transmission assembly 4 and the cover plate 7 and engages with the valve stem 32. The elastic group 34 is fitted over the valve stem 32 and sandwiched between the retaining ring 35 and the cover plate 7. The elastic group 34 is configured to push the valve stem 32 to move upward to reset. The retaining ring 35 is configured to limit the elastic group 34 to prevent the elastic group 34 from disengaging from the valve stem 32.

[0053] refer to Figure 1-2The transmission assembly 4 includes a driving wheel 41 and a driven wheel 42. The driving wheel 41 is disposed on the top of the valve housing assembly 1 and sleeved on the outside of the rotating shaft assembly 3. The driving wheel 41 is locked or unlocked with the rotating shaft assembly 3. In this embodiment, the driving wheel 41 is sleeved on the outside of the valve stem 32 and located above the valve housing assembly 1 and the valve cover 31. The driving wheel 41 and the valve stem 32 are locked or unlocked by the locking part 30, so that the valve stem 32 selectively drives the driving wheel 41 to rotate. The driven wheel 42 is sleeved on the upper end of the conical valve core 21 of the valve core assembly 2 and meshes with the driving wheel 41. When the driving wheel 41 is locked with the valve stem 32 of the rotating shaft assembly 3, the valve stem 32 of the rotating shaft assembly 3 can drive the conical valve core 21 of the valve core assembly 2 to rotate through the meshing driving wheel 41 and driven wheel 42, thereby controlling the air output state of the plug valve.

[0054] In this embodiment, the drive wheel 41 is provided with a lower locking groove 411 located outside the valve stem 32. The valve stem 32 can move up and down relative to the drive wheel 41. A locking part 30 located directly above the lower locking groove 411 is connected and fixed to the valve stem 32. The locking part 30 is selectively inserted into the lower locking groove 411, that is, the locking part 30 can move between being inserted downward into the lower locking groove 411 and moving upward away from the lower locking groove 411. When the valve stem 32 is pressed down, causing the locking part 30 to be inserted downward into the lower locking groove 411, the drive wheel 41 is locked with the valve stem 32. At this time, the valve stem 32 can drive the drive wheel 41 to rotate synchronously through the locking part 30. Conversely, when the valve stem 32 drives the locking part 30 to move upward away from the lower locking groove 411, the drive wheel 41 is unlocked from the valve stem 32. At this time, the valve stem 32 cannot link the drive wheel 41 through the locking part 30.

[0055] refer to Figure 1 and Figure 8-10 The system also includes a signal switch 5 with a spring 51 and a rotating assembly 6. The signal switch 5 is mounted and fixed on the support platform 16 of the valve housing assembly 1 and located outside the control cavity 12. The free end of the spring 51 extends into the control cavity 12 through the opening 121. The rotating assembly 6 is rotatably disposed in the control cavity 12. The valve stem 32 of the rotating shaft assembly 3 can release or press the spring 51 through the rotating assembly 6, thereby controlling the on / off signal of the signal switch 5. When the rotating shaft assembly 3 is in the initial or reset state, the rotating assembly 6 always presses the spring 51 to make the signal switch 5 open and send an off signal; conversely, when the valve stem 32 drives the rotating assembly 6 to rotate, the rotating assembly 6 moves away from and releases the spring 51. At this time, the signal switch 5 is turned on and sends an on signal. The gas stove controls the ignition needle to discharge according to the on signal.

[0056] The rotating assembly 6 includes a rotating body 61 and a lever 62. The rotating body 61 is rotatably disposed within the control cavity 12, and its lower end is inserted into the through hole 122 to prevent radial displacement during rotation. An upward-opening groove 611 is provided at the upper end of the rotating body 61, configured to engage with the lower end of the valve stem 32 of the rotating shaft assembly 3. An outwardly extending protrusion 612 is integrally formed on the outer peripheral wall of the rotating body 61, abutting against the cavity of the control cavity 12, i.e., the protrusion 612 abuts against the edge of the upper end face of the through hole 122 to prevent the rotating body 61 from dislodging downwards from the through hole 122.

[0057] The paddle 62 is sleeved on the outside of the rotating body 61 and is used to release or press the spring 51. The lower end of the valve stem 32 of the rotating shaft assembly 3 is inserted into the groove 611, which can move up and down. The valve stem 32 can drive the paddle 62 to rotate synchronously through the rotating body 61, so as to control the opening or closing of the signal switch 5 by pressing or releasing the spring 51.

[0058] In this embodiment, the paddle 62 has a first lug 621 extending outward for releasing or pressing the spring 51. The first lug 621 can slide along the annular slide 123. When the rotating shaft assembly 3 is in the initial or reset state, the first lug 621 always presses the spring 51. When the valve stem 32 drives the paddle 62 to rotate synchronously through the rotating body 61, the first lug 621 leaves the release spring 51 and slides along the annular slide 123. In addition, the paddle 62 also has a second lug 622 extending outward. The second lug can slide along the annular slide 123. A limiting structure for limiting the upper and lower positions of the second lug is provided on the cavity sidewall of the control cavity 12.

[0059] refer to Figure 8 The rotating assembly 6 also includes an elastic connector 63, which is respectively sleeved on the upper end of the rotating body 61 and the lower end of the valve stem 32 of the rotating shaft assembly 3. The elastic connector 63 is sandwiched between the paddle 62 and the positioning plate 33 of the rotating shaft assembly 3. In this embodiment, the elastic connector 63 is not only used to push the positioning plate 33 to move upward to reset so that the positioning plate 33 is locked and fixed on the valve cover 31, but also used to push the paddle 62 to move downward so that the paddle 62 is always facing the spring 51 of the signal switch 5, effectively ensuring that the paddle 62 reliably controls the on / off state of the signal switch 5.

[0060] refer to Figure 1 and Figure 10-11The system also includes a cover plate 7, which covers the transmission assembly 4 and presses the valve core assembly 2 tightly into the valve core cavity 11. In this embodiment, the cover plate 7 is detachably connected to the valve cover 31 of the valve housing assembly 1 and the rotating shaft assembly 3. The transmission assembly 4 is movably disposed between the cover plate 7 and the top of the valve cover 31 of the rotating shaft assembly 3. The valve stem 32 of the rotating shaft assembly 3 is vertically inserted through the mounting hole of the cover plate 7 (not shown in the figure) and can move up and down. Thus, by covering the transmission assembly 4 with the cover plate 7 and detachably connecting it to the valve housing assembly 1, the transmission assembly 4 is hidden inside the cover plate 7, improving the overall aesthetics of the valve body.

[0061] refer to Figure 4 The cover plate 7 has a downward-opening recess 711 at the position corresponding to the valve core cavity 11. The upper end of the conical valve core 21 is inserted into the recess 711, and the upper end of the elastic member 22 is inserted into the recess 711 and abuts against the top surface of the recess 711. In addition, a countersunk platform 712 is formed by pressing downward at the center of the top surface of the recess 711. This countersunk platform is inserted into the upper end of the elastic member 22 and is used to limit and position the upper end of the elastic member 22.

[0062] refer to Figure 10-11 The cover plate 7 has an upper slot 72 at the position corresponding to the lower slot 411. The upper slot 72 is located directly above the lower slot 411 and is connected to it. The locking part 30 is disposed above the upper slot 72 and can move up and down through the upper slot 72 to prevent the movement of the locking part 30 from being affected by the arrangement of the cover plate 7.

[0063] To achieve a lower limit on the elastic group 34 of the rotating shaft assembly 3, the cover plate 7 is integrally formed with an annular boss 73 extending upward and located around the mounting hole and valve stem 32. The upper end face of the annular boss 73 abuts against the bottom of the elastic group 34. To avoid affecting the movement of the locking part 30 due to the setting of the annular boss 73, a vertical strip hole 731 is provided at the position of the annular boss 73 corresponding to the upper slot 72, through which the locking part 30 can move. The lower end of the vertical strip hole 731 is connected to the upper slot 72, and the upper end of the vertical strip hole 731 is configured to limit the locking part 30.

[0064] The above descriptions are merely some embodiments of the present invention. Those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. An ultra-thin plug valve, characterized in that, include: The valve housing assembly (1) is provided with a valve core cavity (11) and a control cavity (12) arranged in parallel on the left and right sides with an open top. The valve housing assembly (1) is provided with an air inlet channel and an air outlet channel respectively communicating with the valve core cavity (11). The valve core assembly (2) is movably inserted into the valve core cavity (11) and is used to control the on / off state of the air inlet channel and the air outlet channel. A rotating shaft assembly (3) is movably inserted into the control cavity (12); and The transmission assembly (4) is disposed on the top of the valve housing assembly (1) and locked or unlocked from the rotating shaft assembly (3). When the rotating shaft assembly (3) is locked to the transmission assembly (4), the rotating shaft assembly (3) can link the valve core assembly (2) through the transmission assembly (4). The valve housing assembly (1) has an opening (121) on its side wall that communicates with the control cavity (12). The signal switch (5) is located outside the control cavity (12) and has a spring (51). The spring (51) extends into the control cavity (12) through the opening (121). The rotating assembly (6) is rotatably located inside the control cavity (12). The rotating shaft assembly (3) can release or press the spring (51) through the rotating assembly (6). The rotating assembly (6) includes a rotating body (61) and a paddle (62). The bottom of the valve housing assembly (1) is provided with a through hole (122) communicating with the control cavity (12). The rotating body (61) is rotatably disposed in the control cavity (12) and its lower end is inserted into the through hole (122). The upper end of the rotating body (61) is provided with an upward-opening groove (611). The paddle (62) is sleeved on the rotating body (61) and used to release or press the spring (51). The lower end of the rotating shaft assembly (3) is movably inserted into the groove (611). The valve housing assembly (1) has a valve housing. A support platform (16) extending outward and arranged corresponding to the opening (121) is fixed at the lower end of the outer side wall of the valve housing assembly (1). The support platform (16) is located below the rear side of the opening (121) and is used to support and fix the signal switch (5).

2. The ultra-thin plug valve according to claim 1, characterized in that, The transmission assembly (4) includes a drive wheel (41) and a driven wheel (42). The drive wheel (41) is sleeved on the outside of the rotating shaft assembly (3). The drive wheel (41) is locked or unlocked with the rotating shaft assembly (3). The driven wheel (42) is sleeved on the upper end of the valve core assembly (2) and meshes with the drive wheel (41).

3. The ultra-thin plug valve according to claim 2, characterized in that, The drive wheel (41) is provided with a lower slot (411) located outside the shaft assembly (3). The shaft assembly (3) is provided with a locking part (30) located directly above the lower slot (411). The locking part (30) is capable of moving between being inserted downward into the lower slot (411) and moving upward away from the lower slot (411).

4. The ultra-thin plug valve according to claim 1, characterized in that, The lower end of the outer wall of the valve housing assembly (1) is provided with a flange plate (10). The air intake channel includes a lower transverse section (131), a connecting section (132) and an upper transverse section (133) connected in a "Z" shape in sequence. The lower transverse section (131) extends laterally through the flange plate (10) away from the connecting section (132), and the upper transverse section (133) communicates with the valve core cavity (11) away from the connecting section (132).

5. An ultra-thin plug valve according to claim 1 or 4, characterized in that, The air outlet channel includes: The inner ring air passage (14) and the air intake passage are respectively located on opposite outer sides of the valve core cavity (11), and the air intake end of the inner ring air passage (14) is connected to the valve core cavity (11); The outer ring air passage includes an intake section (151) and an outlet section (152). The outlet section (152) is arranged side by side with the inner ring air passage (14) at intervals. The intake section (151) is arranged obliquely in the vertical direction. The higher end of the intake section (151) is located above the inner ring air passage (14) and is connected to the valve core cavity (11). The lower end of the intake section (151) is connected to the outlet section (152).

6. The ultra-thin plug valve according to claim 1, characterized in that, The valve core assembly (2) includes a conical valve core (21) and an elastic element (22). The conical valve core (21) is rotatably inserted into the valve core cavity (11) and is sealed to the cavity sidewall of the valve core cavity (11). The conical valve core (21) has an air guide channel (210) and a cavity (211) with a top opening. The air inlet channel is selectively connected to the air outlet channel through the air guide channel (210). At least the elastic element (22) is disposed in the cavity (211). The elastic element (22) is configured to press the conical valve core (21) tightly into the valve core cavity (11).

7. The ultra-thin plug valve according to claim 1, characterized in that, The rotating shaft assembly (3) includes a valve cover (31), a valve stem (32), and a positioning plate (33). The valve cover (31) is detachably connected to the valve housing assembly (1) and covers the top opening of the control cavity (12). The valve cover (31) has a lower limiting groove (311) and a shaft hole (312) with a downward opening. The shaft hole (312) is connected to the control cavity (12) through the lower limiting groove (311). The valve stem (32) is vertically inserted through the shaft hole (312) and its lower end extends into the control cavity (12). The positioning plate (33) is sleeved on the lower end of the valve stem (32) and can move between the lower limiting groove (311) and the control cavity (12). The transmission assembly (4) is disposed on the top of the valve cover (31) and is locked or unlocked to the valve stem (32).

8. The ultra-thin plug valve according to claim 1, characterized in that, The control cavity (12) has an annular slide (123) arranged in the circumferential direction on the cavity sidewall. The paddle (62) has a first lug (621) extending outward for releasing or pressing the spring (51). The first lug (621) can slide along the annular slide (123).

9. The ultra-thin plug valve according to claim 1, characterized in that, The rotating assembly (6) further includes an elastic connector (63), which is respectively sleeved on the upper end of the rotating body (61) and the lower end of the valve stem (32) of the rotating shaft assembly (3), and is sandwiched between the paddle (62) and the positioning plate (33) of the rotating shaft assembly (3).

10. An ultra-thin plug valve according to any one of claims 1 or 6-9, characterized in that, It also includes a cover plate (7), which covers the transmission assembly (4) and is detachably connected to the valve housing assembly (1). The cover plate (7) presses the valve core assembly (2) tightly into the valve core cavity (11). The valve stem (32) of the rotating shaft assembly (3) is vertically inserted through the mounting hole of the cover plate (7) and can move up and down.

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