Plug valve with valve cover seat

Abstract

The utility model discloses a plug valve with a valve cover seat, which comprises the valve cover seat with a valve cover part, a seat sleeve part and a mounting part, the top face, opposite to the valve deck portion, of the seat sleeve portion extends upwards to form a cylinder structure with a center through hole, the center through hole directly penetrates through the top face of the cylinder structure upwards and extends downwards to penetrate through the valve deck portion, a lateral hole is further formed in the side wall of the cylinder structure, and the valve rod is sleeved with the center through hole and provided with an annular groove. The mounting part comprises a combined mounting seat arranged on the top surface of the valve cover part, the microswitch is mounted on the valve cover part through the combined mounting seat, the microswitch is provided with a vertically arranged trigger end, and the trigger end is located in the lateral hole and at least provided with an upper trigger inclined wall; at least part of the upper triggering inclined wall extends into the annular groove and is pressed and triggered in the downward pressing process of the valve rod. The plug valve with the structure, particularly the valve cover seat, is simple in overall structure and has no abrupt exposed structure.

Description

Technical Field

[0001] This utility model relates to the field of plug valve technology, and in particular to a plug valve with a valve cover seat. Background Technology

[0002] The main product involved in this application is a stopcock valve for stoves. For this type of product, its structure and design have been very mature. In addition to meeting its original basic functions, the optimization and improvement of the structure pays special attention to the simplification of the structure and the design of non-obtrusive exposed structure of components.

[0003] For example, the utility model patent with announcement number CN 208042206 U discloses a stove stopcock valve, in which the valve cover part at the top of the stopcock valve body is assembled by multiple sheet metal parts (valve cover, first pressure plate, second pressure plate, and fixed cover), and the whole has many parts and a relatively complex structure.

[0004] The utility model patent with publication number CN 206458846 U, based on the aforementioned patent, optimized and improved the valve cover portion, adopting an integrated valve cover seat (cover plate and guide sleeve) design. This clearly avoids the need for assembling multiple sheet metal parts for the valve cover portion, resulting in a much simpler structure, especially for the valve cover itself. Similarly, the utility model patent with publication number CN 221075435 U also uses a valve cover seat (valve cover, protective sleeve, and housing seat) to simplify the valve cover portion's structure.

[0005] However, for stopcock valves, optimization and improvement are driven by users' increasing demands for cooktop quality. Structurally, stopcock valves not only require a simpler design but, more importantly, must avoid designs with abruptly exposed structures. However, utility model patents with announcement numbers CN 206458846 U and CN 221075435 U clearly exhibit radially protruding structures. For example, the guide sleeve in utility model patent CN 206458846 U features a radially extending protruding ring at its top, and the receiving seat in utility model patent CN 221075435 U features a radially protruding receiving seat.

[0006] In particular, in the utility model patent with announcement number CN 206458846 U, because the guide sleeve has the convex ring of the above structure, most of the wall thickness of the guide sleeve in the radial direction is occupied by the convex ring. As a result, the wall thickness at the opening of the window on the guide sleeve becomes relatively thin. On the one hand, it is not strong enough, and on the other hand, only a thin window can accommodate the trigger element of the micro switch. Most of the trigger element of the micro switch must extend into the annular groove on the inclined surface of the valve stem. Thus, the resistance of the valve stem to the trigger element during the downward pressing process is relatively large, requiring a large force to press down. This does not meet the usage requirements of high-quality stoves. For high-quality stoves, the above structural design still needs to be optimized and improved.

[0007] In the utility model patent with publication number CN 221075435 U, the large-size housing not only creates a protruding radial design and increases the length of the valve cover seat, thus increasing the overall volume of the plug valve, but more importantly, this structure is not a necessary design; it is merely an optional feature for potential needs in actual use. For a plug valve that only uses a single microswitch, this undoubtedly represents a wasteful design in terms of structure. Utility Model Content

[0008] To at least partially solve the above-mentioned technical problems, this utility model proposes a new type of plug valve with a valve cover seat.

[0009] The present invention provides a plug valve with a valve cover seat. The specific technical solution is as follows: a plug valve with a valve cover seat is provided, including a valve stem, a micro switch, and a valve body with a valve cavity for mounting a valve core. The valve body has a valve cover seat at the top for sealing the valve cavity.

[0010] The valve cover seat is an integral structure, comprising a valve cover part, a seat part, and a mounting part. The valve cover part has a mounting platform at the bottom that can be aligned vertically with the outer side wall of the top of the valve body for assembly. The valve cover part also has an annular wall located between the valve core and the valve body at the mounting platform. The annular wall includes a first wall and a second wall. The length of the first wall extending downward relative to the mounting platform is greater than the length of the second wall extending downward relative to the mounting platform. A locking groove is provided between one side of the first wall and the adjacent second wall.

[0011] The seat part extends upward relative to the top surface of the valve cover part to form a cylindrical structure with a central through hole. The central through hole directly penetrates the top surface of the cylindrical structure and extends downward to penetrate the bottom surface of the mounting platform and is coaxially arranged with the annular wall. A lateral hole is also provided on the side wall of the cylindrical structure corresponding to the left end of the valve cover part. The valve stem is fitted into the central through hole and has an annular groove. The lower end of the valve stem cooperates with the valve core, and the upper end of the valve stem extends out of the central through hole.

[0012] The mounting part includes a combined mounting base located on the top surface of the left end of the valve cover. The micro switch is mounted on the valve cover via the combined mounting base. The micro switch has a vertically arranged trigger end located in a lateral hole and has at least one upper trigger inclined wall. At least a portion of the upper trigger inclined wall extends into the annular groove and is pressed and triggered during the downward pressing of the valve stem.

[0013] The valve cover has a mounting hole at its right end for mounting and connecting to the top of the valve body, and the other parts of this end have a flat top surface.

[0014] Preferably, the cylindrical structure has a vertical cut wall on the side with the lateral hole so that it is close to the front side wall of the main body of the micro switch after the micro switch is installed.

[0015] Preferably, the combined mounting base includes at least four mounting bases for positioning and mounting the micro switch at the four corners, the mounting base having a mounting bottom wall higher than the top surface of the valve cover, and the mounting base also having a limiting side wall for limiting the side wall of the micro switch.

[0016] Preferably, the left end of the valve cover is also provided with a mounting hole for mounting and connecting to the top of the valve body. The mounting holes at both ends of the valve cover penetrate the bottom surface of the mounting platform, and the mounting platform is also provided with a positioning ring arranged around the mounting hole. The top of the valve body is provided with a positioning groove for positioning and accommodating the positioning ring.

[0017] Preferably, the trigger end further comprises a lower inclined wall, the upper trigger inclined wall intersects with the lower inclined wall to form a front end with a circular arc transition, the trigger end further comprises an upper horizontal wall, the upper horizontal wall and the upper trigger inclined wall form an upper circular arc trigger wall, and the trigger end has a certain horizontal thickness.

[0018] Preferably, a positioning part is provided between the front side of the micro switch and the trigger end. The positioning part is constructed as a horizontally arranged cylinder, and the cylinder is located in the lateral hole.

[0019] Preferably, the central angle corresponding to the second wall is between 220 and 240 degrees.

[0020] Beneficial effects:

[0021] The plug valve of this utility model has a cylindrical structure for the seat, resulting in a rounded and simple overall structure without any exposed or abrupt structural design. Compared with the prior art, this effectively reduces the lateral span of the valve cover seat and avoids the bulkiness of the plug valve. In addition, apart from the mounting hole, the right end of the valve cover has a flat top surface, which means that there is no need to set a micro switch mounting seat on the right end, thus avoiding wasteful design.

[0022] The plug valve of this utility model has a very simple overall structure. It adopts an integrated valve seat cover design, which avoids the assembly of multiple sheet metal parts. More importantly, the valve seat cover also integrates an annular wall that cooperates with the valve core and a locking groove structure set on the annular wall, forming an integrated design.

[0023] The plug valve of this invention features only one side hole on the seat, ensuring the overall structural strength of the seat. The seat is cylindrical without any other protruding structures, and the central through hole runs vertically through the cylindrical structure. This ensures that the wall thickness of the cylindrical structure at the side hole is not obstructed by any protruding structures, guaranteeing its robustness. Furthermore, when fitted with a microswitch, its trigger end fits well into the side hole with a certain axial length. The microswitch's trigger end is vertically positioned with an upper trigger bevel. This means that as long as part of the upper trigger bevel extends into the annular groove, it can be triggered by the valve stem. Therefore, the resistance during pressing is significantly reduced, meeting the requirements of high-quality cooktops. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of the plug valve of this utility model.

[0025] Figure 2 This is a cross-sectional view of the plug valve of this utility model (some parts have been removed).

[0026] Figure 3 for Figure 2 The diagram shows an enlarged view of the fit between the valve cover seat, valve core, and valve body.

[0027] Figure 4 This is a three-dimensional structural diagram of the valve cover seat of the plug valve of this utility model from the first position.

[0028] Figure 5 This is a two-dimensional structural diagram of the valve cover seat of the plug valve of this utility model from a second perspective.

[0029] Figure 6 This is an enlarged structural diagram showing the internal fit between the valve body, valve core, and valve stem in the plug valve of this utility model.

[0030] The figure shows: valve stem 1, micro switch 2, trigger end 21, upper trigger inclined wall 22, lower inclined wall 23, upper arc trigger wall 24, positioning part 25, valve cavity 3, valve core 4, valve body 5, valve cover seat 6, valve cover part 61, seat part 62, mounting part 63, mounting platform 7, annular wall 8, first wall 81, second wall 82, lock groove 9, lock rod 10, drive groove 11, central through hole 12, side hole 13, annular groove 14, mounting hole 15, vertical cut wall 16, mounting seat 17, mounting bottom wall 171, limiting side wall 172, positioning ring 18, positioning groove 19. Detailed Implementation

[0031] The technical solutions of specific embodiments of this utility model will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art based on the teachings of the following embodiments are within the protection scope of this utility model.

[0032] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more.

[0033] This utility model is a plug valve with a valve cover seat, which is a further optimization and improvement on the existing technology, especially in terms of structural simplification and non-obtrusive exposed design.

[0034] The following describes the specific embodiments in detail, such as... Figures 1-6 As shown, in this embodiment, a plug valve with a valve cover seat is provided. The plug valve is equipped with a single micro switch 2 and includes the following components: valve stem 1, micro switch 2, valve body 5 with a valve cavity 3 for mounting a valve core 4, and valve body 5 with a valve cover seat 6 at the top for closing the valve cavity 3.

[0035] The valve cover seat 6 is an integral structure, comprising a valve cover part 61, a seat part 62, and a mounting part 63. The valve cover part 61 has a mounting platform 7 at its bottom that can be aligned vertically with the outer side wall of the top of the valve body 5 for assembly. The mounting platform 7 increases the strength of the valve cover part 61 at the connection point and reduces the machining area of ​​the mounting bottom surface of the valve cover part 61. On the other hand, while ensuring that the valve cover part 61 has a sufficient top surface area, its mounting area only needs to be adapted to the size of the top surface area of ​​the valve body 5. More importantly, although a downwardly protruding mounting platform 7 is formed, it can be assembled to the top of the valve body 5 in an aligned manner, ultimately achieving a non-protruding exposed design.

[0036] The valve cover 61 also has an annular wall 8 located between the valve core 4 and the valve body 5 at the mounting platform 7. The annular wall 8 includes a first wall 81 and a second wall 82. The length of the first wall 81 extending downward relative to the mounting platform 7 is greater than the length of the second wall 82 extending downward relative to the mounting platform 7. A locking groove 9 is provided between one side of the first wall 81 and the adjacent second wall 82. In actual use, a radially protruding locking rod 10 is provided at the lower end of the valve stem 1. This locking rod 10 is located in the drive groove 11 of the valve core 4. When the valve stem 1 is pressed down and rotated, the top wall of the locking rod 10 can slide along the bottom surface of the second wall 82. It is this second wall 82 that provides a guide for the movement of the locking rod 10. When the locking rod 10 is at zero degrees, that is, when the locking rod 10 is not pressed and is in the off state, the locking rod 10 can be positioned in the locking groove 9, thus forming a zero-degree locking state, providing a safety protection function.

[0037] In this embodiment, the core component, namely the seat sleeve 62, mainly adopts the following structural style. Specifically, the seat sleeve 62 extends upward relative to the top surface of the valve cover 61 to form a cylindrical structure with a central through hole 12. It should be noted that the cylindrical structure has a rounded outer cylindrical surface and a flat top surface. The overall structure is rounded and regular, forming a non-protruding exposed structural design. The overall structure is simple, easy to form, and the overall quality meets the requirements of high-quality stoves. The central through hole 12 directly penetrates the top surface of the cylindrical structure. The central through hole 12 also extends downward and penetrates the bottom surface of the mounting platform 7, forming a coaxial arrangement with the annular wall 8. Here, the inner diameter of the central through hole 12 is smaller than the inner diameter of the annular wall 8. Simultaneously, a lateral hole 13 is provided on the side wall of the cylindrical structure corresponding to the left end of the valve cover 61. The lateral hole 13 is horizontally positioned, and the valve stem 1 is fitted into the central through hole 12. The stem body fitted into the central through hole 12 has an annular groove 14. The lower end of the valve stem 1 cooperates with the valve core 4, and the upper end of the valve stem 1 extends out of the central through hole 12 for operation. It should be noted that the fitting here can be understood as the valve stem 1 being able to move up and down and circumferentially within the central through hole 12. It can be seen that after the seat sleeve 62 adopts the above-mentioned structural configuration, the stem body of the valve stem 1 fitted into the central through hole 12 can be well contained by the seat sleeve 62, and the overall stability can be well reinforced during pressing and rotation.

[0038] The mounting portion 63 includes a combined mounting base located on the top left end of the valve cover portion 61. The micro switch 2 is mounted on the valve cover portion 61 via the combined mounting base. The micro switch 2 has a vertically arranged trigger end 21, which is located in the lateral hole 13 and has at least one upper trigger inclined wall 22. At least a portion of the upper trigger inclined wall 22 extends into the annular groove 14 and is pressed and triggered during the downward pressing of the valve stem 1. It can be understood that after pressing the valve stem 1, the trigger end 21 is triggered, which can activate the micro switch to perform an ignition operation.

[0039] Meanwhile, a mounting hole 15 is provided at the right end of the valve cover 61 for mounting and connecting to the top of the valve body 5, while the other parts of this end have a flat top surface. This design makes the valve cover 61 of the plug valve of this invention a very simple design, avoiding unnecessary and wasteful structural elements on the right end. This type of plug valve is particularly suitable for the installation of a single microswitch, with an overall simple and waste-free design.

[0040] In this embodiment, the left and right ends mentioned above can be understood as references. Figure 1 The left and right ends are shown in the figure, but the orientation of the left and right ends is only based on the orientation shown in a certain figure and does not affect the scope of protection of the claims.

[0041] In this embodiment, based on the above-mentioned design concept, the following structural optimization was also carried out. Specifically, the cylindrical structure is provided with a vertical cut wall 16 on the side with the lateral hole 13 so that it is close to the front side wall of the main body of the micro switch 2 after the micro switch 2 is installed, thereby reducing the gap between the two, making the components closer together and the structure more compact.

[0042] Simultaneously, the trigger end 21 also has a lower inclined wall 23, and the upper trigger inclined wall 22 intersects with the lower inclined wall 23 to form a rounded transition front end (unmarked). The trigger end 21 also has an upper horizontal wall (unmarked), and the upper horizontal wall and the upper trigger inclined wall 22 form an upper rounded trigger wall 24. The trigger end 21 constructed in this way has a certain horizontal thickness. Compared with the rectangular design structure in the prior art, the trigger end 21 of this structure has increased overall roundness, does not have a sharp right angle structure, does not produce stress concentration, and has improved overall strength. More importantly, in this embodiment, after adopting a vertically set trigger end 21 and adding an upper rounded trigger wall 24, when the trigger end 21 extends into the annular groove 14 to a suitable length, the upper rounded trigger wall 24 is pressed first during the pressing of the valve stem 1, thereby triggering the micro switch to start. Moreover, no sharp pressing contact is produced during pressing, which provides a certain degree of protection for each component. In this embodiment, the top surface of the annular groove 14 can be a horizontal top wall or an inclined top wall, as shown in the attached diagram. Figure 2 , Figure 3 The middle section is a sloping top wall. It should be noted that, to avoid sharp pressure contact, both the sloping and horizontal top walls form a rounded transition connection with the outer circumference of the valve stem.

[0043] In this embodiment, to ensure good containment between the trigger end 21 of the micro switch 2 and the side hole 13, a positioning part 25 is provided between the front side of the micro switch 2 and the trigger end 21. The positioning part 25 is constructed as a horizontally arranged cylinder, which is located in the side hole 13. In the design and construction, the positioning part 25 can be integrated with the trigger end 21 to form the trigger end 21.

[0044] The combined mounting base includes at least four mounting bases 17 for positioning and mounting the micro switch 2 at its four corners. Each mounting base 17 has a mounting bottom wall 171 that is higher than the top surface of the valve cover 61, and a limiting side wall 172 for limiting the side wall of the micro switch 2. Thus, the bottom of the micro switch 2 rests on the mounting bottom wall 171, while the side wall is limited by the limiting side wall 172, thereby achieving positioning and mounting. Simultaneously, the micro switch 2 is also mounted on the valve cover 61 with screws. This allows the micro switch 2 to be positioned and mounted, and simultaneously secured to the top of the valve body 5 via mounting holes using screws. This combination of positioning and securing provides a secure installation of the micro switch 2. It should be noted that the mounting base 17 has a mounting bottom wall 171 that is higher than the top surface of the valve cover 61. This design helps to avoid the head of the long screw when the valve cover seat 6 is subsequently secured to the top of the valve body 1 using a long screw.

[0045] To ensure balanced force distribution during installation of the valve cover 61, and given its elongated rectangular shape, a mounting hole 15 is provided at the left end of the valve cover 61 for connection to the top of the valve body 5. Furthermore, the mounting holes 15 at both ends of the valve cover 61 penetrate the bottom surface of the mounting platform 7, which also features a positioning ring 18 arranged around the mounting holes 15. The top of the valve body 5 has a positioning groove 19 for accommodating the positioning ring 18. This arrangement of the positioning ring 18 and the positioning groove 19 allows the valve seat cover 6 to be easily positioned when assembled onto the valve body 5, first by the positioning ring 18 and the positioning groove 19, and then secured with long screws.

[0046] In this embodiment, the rotary valve shown can rotate the stove knob from 220 degrees to 240 degrees. The large rotation angle and wide range of firepower adjustment make it particularly suitable for occasions where the firepower needs to be finely adjusted. To achieve this, the degree of the central angle corresponding to the second wall 82 is 220 degrees to 240 degrees, and in this embodiment, 230 degrees is preferred.

[0047] The plug valve of this utility model has a very compact and simple overall structure with no exposed or protruding structural design. Moreover, the valve cover seat forms an integrated design of multiple components, which is very suitable for the use of high-quality stoves.

[0048] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A plug valve with a valve cover seat, comprising a valve stem, a micro switch, and a valve body having a valve cavity for mounting a valve core, wherein the valve body has a valve cover seat at the top for closing the valve cavity; characterized in that The valve cover seat is an integral structure, comprising a valve cover part, a seat part, and a mounting part. The valve cover part has a mounting platform at the bottom that can be aligned vertically with the outer side wall of the top of the valve body for assembly. The valve cover part also has an annular wall located between the valve core and the valve body at the mounting platform. The annular wall includes a first wall and a second wall. The length of the first wall extending downward relative to the mounting platform is greater than the length of the second wall extending downward relative to the mounting platform. A locking groove is provided between one side of the first wall and the adjacent second wall. The seat part extends upward relative to the top surface of the valve cover part to form a cylindrical structure with a central through hole. The central through hole directly penetrates the top surface of the cylindrical structure and extends downward to penetrate the bottom surface of the mounting platform and is coaxially arranged with the annular wall. A lateral hole is also provided on the side wall of the cylindrical structure corresponding to the left end of the valve cover part. The valve stem is fitted into the central through hole and has an annular groove. The lower end of the valve stem cooperates with the valve core, and the upper end of the valve stem extends out of the central through hole. The mounting part includes a combined mounting base located on the top surface of the left end of the valve cover. The micro switch is mounted on the valve cover via the combined mounting base. The micro switch has a vertically arranged trigger end located in a lateral hole and has at least one upper trigger inclined wall. At least a portion of the upper trigger inclined wall extends into the annular groove and is pressed and triggered during the downward pressing of the valve stem. The valve cover has a mounting hole at its right end for mounting and connecting to the top of the valve body, and the other parts of this end have a flat top surface.

2. The faucet valve with bonnet seat according to claim 1, characterized in that The cylindrical structure has a vertical cut-wall on one side with a lateral hole so that it can be close to the front side wall of the microswitch body after the microswitch is installed.

3. The plug valve with a valve cover seat according to claim 1, characterized in that, The combined mounting base includes at least four mounting bases for positioning and mounting the micro switch at the four corners. The mounting base has a mounting bottom wall that is higher than the top surface of the valve cover. The mounting base also has a limiting side wall for limiting the side wall of the micro switch.

4. The faucet valve with bonnet seat according to claim 1 or 3, characterized in that, The left end of the valve cover is also provided with a mounting hole for installation and connection to the top of the valve body. The mounting holes at both ends of the valve cover penetrate the bottom surface of the mounting platform, and the mounting platform is also provided with a positioning ring arranged around the mounting hole. The top of the valve body is provided with a positioning groove for positioning and accommodating the positioning ring.

5. The faucet valve with bonnet seat according to claim 1, characterized in that, The trigger end also has a lower inclined wall, the upper trigger inclined wall intersects with the lower inclined wall to form a front end with a circular arc transition, the trigger end also has an upper horizontal wall, the upper horizontal wall and the upper trigger inclined wall form an upper circular arc trigger wall, and the trigger end has a certain horizontal thickness.

6. The plug valve with a valve cover seat according to claim 1 or 5, characterized in that, A positioning part is provided between the front side of the micro switch and the trigger end. The positioning part is constructed as a horizontally arranged cylinder, which is located in the side hole.

7. The faucet valve with bonnet seat according to claim 1, characterized in that The central angle corresponding to the second wall is between 220 and 240 degrees.

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