CN218094372U - Plug valve and gas equipment - Google Patents

Abstract

The utility model discloses a plug valve and gas equipment that has it, the plug valve includes: the valve comprises a shell, a valve rod, a rotating block, a positioning block, an adjusting block and an elastic piece, wherein the shell is internally provided with an accommodating cavity with an open lower side and a guide channel arranged on the peripheral wall of the accommodating cavity; the valve rod is rotatably connected with the shell; the rotating block is connected with the valve rod and is relatively fixed along the circumferential direction, and the rotating block is arranged in the accommodating cavity and is opposite to the guide channel; the positioning block is arranged in the guide channel; the adjusting block is embedded into the guide channel; the elastic piece is respectively abutted to the adjusting block and the positioning block so as to push the positioning block to be abutted to the rotating block, wherein the adjusting block can move along the extending direction of the guide channel so as to adjust the pretightening force of the elastic piece. Through using above-mentioned technical scheme, can adjust the pretightning force of elastic component, be suitable for and be used for adjusting according to the user demand, provide convenience for the user uses.

Description

Plug valve and gas equipment

Technical Field

The utility model relates to a gas equipment technical field, in particular to plug valve and gas equipment who has this plug valve.

Background

In the related art, most plug valves are in stepless adjustment, and a user needs to judge the firepower by bending down to observe the size of flame, so that the process of adjusting the firepower is troublesome, and the user experience is reduced. When a user adjusts the firepower through silk screen printing on the panel of the stove, the user can only observe whether the cooker is rotated in place or not through naked eyes, the cooker is easy to be larger or smaller, and after the cooker is assembled, the damping hand feeling is not adjustable, so that inconvenience is brought to the user.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving one of the technical problems in the related art at least to a certain extent. Therefore, an object of the present invention is to provide a plug valve, which can adjust the pretightening force of the elastic member by moving the adjusting block, and is suitable for being adjusted according to the use requirement, thereby providing convenience for the user.

Another object of the utility model is to provide a gas equipment, including aforementioned plug valve.

According to the utility model discloses plug valve, include: the valve comprises a shell, a valve rod, a rotating block, a positioning block, an adjusting block and an elastic piece, wherein the shell is internally provided with an accommodating cavity with an open lower side and a guide channel arranged on the peripheral wall of the accommodating cavity; the valve rod is rotatably connected with the shell; the rotating block is connected with the valve rod and is relatively fixed along the circumferential direction, and the rotating block is arranged in the accommodating cavity and is opposite to the guide channel; the positioning block is arranged in the guide channel; the adjusting block is embedded into the guide channel; the elastic piece is respectively abutted to the adjusting block and the positioning block so as to push the positioning block to be abutted to the rotating block, wherein the adjusting block can move along the extending direction of the guide channel so as to adjust the pretightening force of the elastic piece.

According to the utility model discloses plug valve is suitable for the pretightning force that the regulating block that removes can adjust the elastic component in the direction passageway through the setting, is suitable for and is used for adjusting according to the user demand, facilitates for the user uses.

In addition, the plug valve according to the above embodiment of the present invention may further have the following additional technical features:

in some examples of the invention, the second end of the guide channel is remote from the accommodation chamber and runs through the lateral surface of the housing, so as to be adapted to adjust the position of the adjustment block from the second end of the guide channel.

In some examples of the invention, the adjustment block is threadedly engaged with a peripheral wall of the guide channel.

In some examples of the invention, the positioning block, the adjustment block and the resilient element are combined into a spring plunger.

In some examples of the invention, the first end of the guiding channel is close to the accommodating cavity and is provided with a limiting flange, the positioning block has a main body part and a positioning part, the main body part is arranged in the accommodating cavity and is opposite to the limiting flange, the positioning part is connected with the main body part and passes through the limiting flange to stretch into the accommodating cavity.

In some examples of the invention, the outer peripheral surface of the rotary block is provided with a groove, the positioning block is pushed toward the rotary block by the elastic member, and the positioning block is adapted to slide in and slide out of the groove when the valve rod rotates.

In some examples of the present invention, at least three grooves are formed on the outer peripheral surface of the rotating block, and the at least three grooves are arranged at equal intervals or at unequal intervals in the circumferential direction of the valve rod assembly.

In some examples of the present invention, the inner peripheral surface of the accommodating chamber is provided with an annular groove, the plug valve further comprises a positioning member, the positioning member is an annular elastic structure with an opening, the positioning member is embedded into the annular groove and faces the accommodating chamber protruding to limit the rotating block.

In some examples of the present invention, a support block is disposed on the inner top surface of the accommodating chamber, and a lower end of the support block is opposite to the rotation block.

In some examples of the invention, the rotation block is engaged with the valve rod movably in an axial direction of the valve rod.

In some examples of the present invention, the rotating block is provided with a mounting hole, the valve rod is provided with a flat structure, the flat structure is engaged with the mounting hole, so that the valve rod is fixed to the rotating block along the circumferential direction of the valve rod, and the flat structure is spaced apart from the lower end surface of the valve rod by a predetermined distance.

The utility model discloses an in some examples, be provided with ignition on the shell, be equipped with the groove of stepping down on the valve rod, the valve rod is connected along axially movable the shell, just the valve rod has primary importance and second place in week, the valve rod is in ignition's contact embedding during the primary importance the groove of stepping down, the valve rod is when the second place the outer peripheral face butt of valve rod ignition's contact is in order to trigger ignition.

According to the utility model discloses gas equipment, including aforementioned plug valve.

According to the utility model discloses gas equipment, the accurate firepower of adjusting of user of can being convenient for, and can adjust the pretightning force of elastic component through removing the regulating block, be suitable for and be used for adjusting according to the user demand, facilitate for the user uses.

Drawings

Fig. 1 is a cross-sectional view of a plug valve in accordance with some embodiments of the present invention.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is a schematic structural view of a positioning member according to some embodiments of the present invention.

Fig. 4 is a schematic diagram of a rotating block according to some embodiments of the present invention.

Fig. 5 is a schematic structural diagram of the housing according to some embodiments of the present invention.

Fig. 6 is a top view of a housing in some embodiments of the invention.

Fig. 7 is a schematic view of a valve stem according to some embodiments of the present invention.

Reference numerals:

100. a plug valve; 10. a housing; 101. an accommodating cavity; 103. an annular groove; 104. a guide groove; 105. positioning the notch; 11. a support block; 102. a guide channel; 111. a limiting flange; 20. a valve stem; 21. a first position; 22. a second position; 23. a flat structure; 201. a yielding groove; 24. a pin; 25. a rotating part; 30. rotating the block; 301. a groove; 302. mounting holes; 40. a positioning member; 401. a circular hole; 50. a spring plunger; 51. positioning blocks; 511. a main body portion; 512. a positioning part; 52. an elastic member; 53. an adjusting block; 62. and an ignition switch.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

With reference to fig. 1 to 7, a plug valve 100 according to an embodiment of the present invention includes: shell 10, valve rod 20 and rotatory piece 30, valve rod 20 rotationally links to each other with shell 10, valve rod 20 rotates the aperture that can be used for adjusting plug valve 100, the open holding chamber 101 of downside has in the shell 10 and locate the guide way 102 on the perisporium of holding chamber 101, rotatory piece 30 is located in holding chamber 101 and relative with guide way 102, rotatory piece 30 links to each other with valve rod 20 and follows circumference relatively fixed, rotatory piece 30 also can rotate when valve rod 20 rotates promptly, from this, rotatory piece 30 can be at holding chamber 101 internal rotation when valve rod 20 rotates, in order to cooperate the aperture that valve rod 20 adjusted plug valve 100. Further, the plug valve 100 further includes a positioning block 51, an elastic member 52 and a regulating block 53, the positioning block 51 is disposed in the guide channel 102, the regulating block 53 is embedded in the guide channel 102, and the elastic member 52 abuts against the regulating block 53 and the positioning block 51 respectively to push the positioning block 51 to abut against the rotating block 30. Specifically, the elastic member 52 abuts between the positioning block 51 and the adjusting block 53, the elastic member 52 can enable the positioning block 51 to abut against the rotating block 30, and the driving force of the elastic member 52 during adjustment can provide resistance for a user when the user adjusts the rotating block 30, so as to generate a damping hand feeling or a warning sound. Wherein, the adjusting block 53 is movable along the extending direction of the guide channel 102 to adjust the pretightening force of the elastic element 52. That is, the user can adjust the pre-tightening force of the elastic element 52 to conform to the user's habit, so as to facilitate the user's adjustment operation. For example, when the user feels the adjustment resistance is large, the adjusting block 53 may be adjusted to reduce the pre-tightening force of the elastic member 52, i.e., the adjusting block 53 is moved in a direction away from the positioning block 51, so as to reduce the compression of the elastic member 52; or when the user feels that the adjusting resistance is small, the adjusting block 53 can be adjusted toward the positioning block 51, so as to increase the pre-tightening force of the elastic member 52, so that the resistance is increased when the user adjusts the rotating member.

According to the plug valve 100 of the embodiment of the present invention, by providing the rotating block 30, the positioning block 51 and the elastic member 52 on the plug valve 100, damping or warning sound can be provided when the valve rod 20 is rotated, which provides convenience for users to adjust; the pre-tightening force of the elastic element 52 can be adjusted by arranging the adjusting block 53 which is suitable for moving in the guide channel 102, and the adjusting block is suitable for being adjusted according to the use requirement, so that convenience is brought to the use of a user.

When the positioning device is used, the rotating block 30 is located in the accommodating cavity 101, the positioning block 51, the elastic piece 52 and the adjusting block 53 are located in the guide channel 102, the guide channel 102 is opposite to the accommodating cavity 101, the elastic piece 52 is abutted between the positioning block and the adjusting block 53, so that the positioning block 51 can be abutted against the elastic piece 52, and the positioning block 51 is driven by the elastic piece 52 to be abutted against the rotating block 30. When the elastic piece 52 is used, a user can adjust the adjusting block 53 according to use requirements so as to adjust the pretightening force of the elastic piece 52 and improve the use comfort and flexibility. When the elastic force of the elastic element 52 is reduced, the adjusting block 53 can be moved toward the positioning block 51 to increase the pre-tightening force of the elastic element 52, thereby improving the durability and the use effect of the plug valve 100.

With reference to fig. 2 and 5, in some embodiments of the present invention, the second end of the guiding channel 102 is far away from the accommodating cavity 101 and penetrates through the outer peripheral surface of the housing 10, which can facilitate the construction of the guiding channel 102, and is suitable for adjusting the position of the adjusting block 53 from the second end of the guiding channel 102, which can facilitate the user to directly adjust from the outside. Specifically, the guide channel 102 may be directly formed on the housing 10, i.e., the second end of the guide channel 102, and then the positioning block 51, the elastic member 52 and the adjusting block 53 are installed in the guide channel 102.

In some embodiments of the present invention, the adjusting block 53 is screwed to the peripheral wall of the guiding channel 102, so that the adjustment is easy, the structure is simple and easy to construct, and the structural stability is strong. Specifically, when the user adjusts the adjusting block 53, the adjusting block 53 can be rotated, and the adjusting block 53 is in threaded fit with the guide channel 102, so that the adjusting block 53 can move in the guide channel 102 when rotated, and circumferential rotation of the adjusting member can be converted into axial movement of the adjusting member.

With reference to fig. 1, in some embodiments of the present invention, the positioning block 51, the adjusting block 53 and the elastic member 52 are combined into the spring plunger 50, and when in use, the spring plunger 50 can be directly installed in the guide channel 102, which is convenient for assembly and acquisition, and is beneficial to reducing the manufacturing cost; and the maintenance and replacement of users can be facilitated.

With reference to fig. 1 and 2, in some embodiments of the present invention, the first end of the guiding channel 102 is close to the accommodating cavity 101 and is provided with the limiting flange 111, the positioning block 51 has a main body portion 511 and a positioning portion 512, the main body portion 511 is disposed in the accommodating cavity 101 and is opposite to the limiting flange 111, and the positioning portion 512 is connected to the main body portion 511 and passes through the limiting flange 111 to extend into the accommodating cavity 101.

With reference to fig. 4, in some embodiments of the present invention, a groove 301 is formed on the outer peripheral surface of the rotary block 30, a guide channel 102 opposite to the rotary block 30 is formed on the peripheral wall of the accommodating cavity 101, so as to be matched with the rotary block 30, a positioning block 51 is disposed in the guide channel 102, the positioning block 51 is pushed toward the rotary block 30 by an elastic member 52, so that the positioning block 51 can move in the guide channel 102, and the positioning block 51 is adapted to slide into and out of the groove 301 when the valve rod 20 rotates. Specifically, the positioning block 51 may be inserted into the groove 301, or the positioning block 51 and the rotation block 30 may be snap-fitted through the groove 301, so that the rotation block 30 or the valve rod 20 may be positioned at the current position, and the positioning reliability may be improved. When the opening degree of the plug valve 100 needs to be adjusted, the valve rod 20 rotates the positioning block 51 to be separated from the groove 301, and when the positioning block 51 slides out of the groove 301, the elastic element 52 is compressed, and resistance needs to be overcome, so that a damping hand feeling is generated; when the positioning block 51 is rotated and slid into the groove 301, the elastic force of the elastic member 52 pushes the positioning block 51 toward the groove 301, which may provide a warning sound for the user. That is, the positioning block 51 and the elastic member 52 may be engaged with the rotating block 30, and may generate damping when the positioning block 51 slides out of the groove 301 of the rotating block 30, and may also generate a warning sound when the positioning block 51 slides into the groove 301, so as to facilitate the adjustment by the user.

When the electronic device is used, one end of the elastic element 52 is abutted to the housing 10, the other end is abutted to the positioning block 51, and the elastic element 52 provides elastic force to drive the positioning block 51 to be abutted to the groove 301 and generate a prompt sound. Alternatively, the positioning block 51 and/or the rotating block 30 may be made of metal, so that the positioning block 51 impacts the top wall of the groove 301 to generate an alarm sound under the driving of the elastic member 52, so that a user can know whether the fire power is effectively adjusted or not by combining the alarm sound during the fire power adjustment process. Wherein the elastic member 52 may be a spring.

With reference to fig. 2, in some embodiments of the present invention, the first end of the guiding channel 102 is close to the accommodating cavity 101 and is provided with the limiting flange 111, the positioning block 51 has a main body portion 511 and a positioning portion 512, the main body portion 511 is disposed in the guiding channel 102 and is opposite to the limiting flange 111, and the positioning portion 512 is connected to the main body portion 511 and passes through the limiting flange 111 to extend into the accommodating cavity 101. Specifically, one end of the positioning portion 512 is suitable for extending into the accommodating cavity 101 to abut against the rotating block 30, the other end of the positioning portion 512 is connected with one end of the main body portion 511, the other end of the main body portion 511 is suitable for abutting against the elastic piece 52 to provide a driving force for the positioning portion 512, wherein the limiting flange 111 and one end of the main body portion 511 connected with the positioning portion 512 are used for limiting the limit position of the positioning portion 512 extending into the accommodating cavity 101 or the limit position of the positioning block 51 in movement, and the improvement of the structural stability is facilitated. In other words, the limiting flange 111 can limit the moving range of the positioning block 51, so that the positioning block 51 is prevented from moving or shaking when the elastic element 52 drives the positioning block 51 or the rotating block 30 rotates, the stability of the positioning block 51 in cooperation with the rotating block 30 and the elastic element 52 is improved, and the adjustment hand feeling is improved.

With reference to fig. 1 and fig. 2, during adjustment, the rotating block 30 rotates, the positioning portion 512 gradually leaves the groove 301, and the elastic element 52 is compressed, so that the positioning portion 512 exits the accommodating cavity 101; when the position is adjusted to the preset position, the elastic element 52 drives the positioning part 512 to enter the groove 301 and abut against the top wall of the groove 301, and the main body part 511 is opposite to the limiting flange 111.

In some embodiments of the present invention, the second end of the guiding channel 102 is far away from the accommodating cavity 101 and penetrates through the outer side surface of the housing 10, and the guiding channel 102 may be configured. The second end of the guide channel 102 is provided with a plug 55 to close the guide channel 102 for ease of assembly. Specifically, the guide channel 102 may be directly formed on the housing 10, that is, the second end of the guide channel 102, and then the positioning block 51 and the elastic element 52 are installed in the guide channel 102, and then the guiding and conducting are closed by the plug 55, wherein one end of the elastic element 52 abuts against the positioning block 51, and the other end abuts against the plug 55. The plug 55 may be fixedly connected to the second end of the guide channel 102, and when the positioning block 51 presses against the elastic element 52, the elastic element 52 is compressed, so as to store energy, and the stored energy may be used to drive the positioning block 51 to be inserted into the groove 301, so as to maintain the stability of the adjustment.

In some embodiments of the present invention, at least three grooves 301 are formed on the outer peripheral surface of the rotating block 30, and the at least three grooves 301 are arranged at equal intervals or at unequal intervals along the circumference of the valve rod 20 assembly. That is to say, can set up a plurality of recesses 301 on the rotatory piece 30, a plurality of recesses 301 interval is arranged, and a plurality of recesses 301 can correspond with the adjusting position to realize many gears and adjust, wherein a plurality of recesses 301 can be arranged in equidistant order to realize linear adjustment, and a plurality of recesses 301 also can be arranged in non-equidistant, are convenient for be used for adjusting predetermined position. For example, when the plug valve 100 is applied to a gas appliance, by providing the plurality of grooves 301 on the outer circumferential surface of the rotation block 30, it is possible to facilitate a user to accurately adjust to target fire, and to facilitate a user to judge whether to effectively adjust, facilitating a user to rapidly switch the fire. In addition, the user does not need to bend down to observe the flame for judgment, and convenience is brought to the user.

It is also possible that the plurality of grooves 301 have the same or different sizes, for example, the depth of the groove 301 at a certain position is larger, etc., so as to provide different prompts for the user, and facilitate the user to directly judge how to adjust.

With reference to fig. 1 and 6, in some embodiments of the present invention, an annular groove 103 is formed on an inner circumferential surface of the accommodating chamber 101, the positioning element 40 is embedded in the annular groove 103, the positioning element 40 is an annular elastic structure with an opening so as to put in and take out the positioning element 40, and the positioning element 40 protrudes toward the accommodating chamber 101 to limit the rotating block 30. Specifically, the positioning member 40 can prevent the rotation block 30 from falling out of the accommodation cavity 101, thereby improving the stability of the use of the plug valve 100.

With reference to fig. 3, according to the plug valve 100 of the embodiment of the present invention, the positioning element 40 is in an annular shape with an opening, the positioning element 40 can be opened or contracted at the opening, and two round holes 401 are respectively disposed at two ends of the positioning element 40, so that the deformation diameter of the positioning element 40 is reduced, thereby facilitating the insertion of the annular groove 103 in the accommodating cavity 101.

Combine fig. 1 the utility model discloses an in some embodiments, be equipped with supporting shoe 11 on the interior top surface of holding chamber 101, the lower extreme of supporting shoe 11 is relative with rotatory piece 30, and rotatory piece 30 can be supported to supporting shoe 11, can avoid among the accommodation process rotatory piece 30 to rock, improves regulation stability.

Referring to fig. 1, in some embodiments of the present invention, the rotary block 30 is movably engaged with the valve rod 20 in the axial direction of the valve rod 20, so that the rotary block 30 can be driven to rotate by adjusting the valve rod 20, thereby facilitating the user operation.

With reference to fig. 4 and 7, in some embodiments of the present invention, the mounting hole 302 is disposed on the rotating block 30, the flat structure 23 is disposed on the valve rod 20, the flat structure 23 is sleeved and matched with the mounting hole 302, so that the valve rod 20 and the rotating block 30 are relatively fixed along the circumferential direction of the valve rod 20, the rotating block 30 can rotate along with the rotation of the valve rod 20, and the structure is simple, easy to construct and strong in stability. Wherein the flat structure 23 is spaced apart from the lower end surface of the valve stem 20 by a predetermined distance, which may facilitate the connection of the valve stem 20 with the housing 10 or the limit of the rotation block 30.

With reference to fig. 6 and 7, in some embodiments of the present invention, the bottom of the accommodating groove is provided with a guide groove 104, the guide groove 104 extends along the circumferential direction of the valve rod 20, and one end of the guide groove is provided with an upward-recessed positioning notch 105, the valve rod 20 is connected with a pin 24, the pin 24 is suitable for being accommodated in the positioning notch 105 to lock the valve rod 20, the valve rod 20 is suitable for moving the driving pin 24 downwards to disengage from the positioning notch 105 for unlocking, and the valve rod 20 is suitable for rotating and driving the pin 24 to move along the guide groove 104. That is to say, the guide groove 104 can define the moving range of the valve rod 20, and the positioning notch 105 in the guide groove 104 can lock the valve rod 20, so as to avoid mistaken touch and improve the safety of use. The upper portion of the valve stem 20 is further provided with a turning portion 25 for easy adjustment.

Specifically, the valve rod 20 has a locking state and an adjusting state, the lower end of the valve rod 20 is provided with a pin 24, when the pin 24 is embedded into the positioning notch 105, the valve rod 20 can be locked, and at the moment, the valve rod 20 cannot rotate along the circumferential direction, so that the valve rod can be prevented from being touched by mistake; when the user needs to open the plug valve 100, the valve rod 20 can be switched to the adjustment state, that is, the valve rod 20 is moved downwards, so that the pin 24 is disengaged from the positioning notch 105 recessed upwards and enters the guide groove 104, and when the user applies horizontal force, the pin 24 of the valve rod 20 can move circumferentially along the guide groove 104 to perform an adjustment operation. Therefore, when the user needs to adjust, two actions of downward pressing and horizontal rotation need to be applied, the situation that the gas leaks due to mistaken touch of the user can be avoided, and the use safety is improved.

With reference to fig. 1, further, in some embodiments of the present invention, an ignition switch 62 is disposed on the housing 10, a relief groove 201 is disposed on the valve rod 20, the valve rod 20 is movably connected to the housing 10 along the axial direction, the valve rod 20 has a first position 21 and a second position 22 in the circumferential direction, a contact of the ignition switch 62 is embedded in the relief groove 201 when the valve rod 20 is at the first position 21, and an outer peripheral surface of the valve rod 20 abuts against the contact of the ignition switch 62 to trigger the ignition switch 62 when the valve rod 20 is at the second position 22. Further, when the valve stem 20 is rotated at the second position 22, the outer peripheral surface of the valve stem 20 is always in contact with the contact of the ignition switch 62, and thus, the extinguishing of the fire can be avoided.

In combination with the above, when the pin 24 of the valve rod 20 is inserted into the positioning notch 105, the valve rod 20 is in the first position 21, at this time, the valve rod 20 is locked, and the ignition switch 62 is inserted into the receding groove 201; when a user presses the valve rod 20 downwards, the second position 22 of the valve rod 20 is abutted with the ignition switch 62 to trigger the ignition switch 62, and when the user presses the valve rod 20 downwards and rotates the valve rod 20 in the circumferential direction, the gas introduction amount can be adjusted.

More specifically, the end of the ignition switch 62 contacting the valve stem 20 may form a slope surface, so that the ignition switch 62 is disengaged from the offset groove 201 or the valve stem 20 is switched from the second position 22 to the first position 21 to be inserted into the offset groove 201 when the valve stem 20 is switched from the first position 21 to the second position 22.

According to the utility model discloses gas equipment, including aforementioned plug valve 100, through using aforementioned plug valve 100 on gas equipment, the accurate firepower of adjusting of user of can being convenient for, and structural stability is strong.

It should be noted that the plug valve in the present application can be used in various gas appliances, such as gas stoves, gas water heaters, and other appliances requiring gas. The gas appliance further comprises a burner, which is connected with a plug valve 100. The gas equipment can control the firepower of the burner according to the plug valve 100 so as to meet different combustion requirements. For example, when the gas appliance is a gas stove, the fire power of the burner can be controlled by the plug valve 100 to meet the cooking requirements of different food materials. For another example, when the gas appliance is a gas water heater, the fire power of the burner can be controlled by the plug valve 100 to adjust the water outlet temperature of the gas water heater.

The plug valve 100 and the gas appliance according to an embodiment of the present invention will be described with reference to the accompanying drawings.

General plug valve is equipped with the valve rod that can cooperate synchronous revolution with the knob, is equipped with the pin on the valve rod and cooperates with case draw-in groove, drives the case rotatory around the axle core, is equipped with outer loop air flue and inner ring air flue on the case, also is equipped with outer loop gas pocket and inner ring gas pocket on the valve body. The output gas flow is controlled by changing the overlapping area of the upper air passage of the valve core and the air hole of the valve body, so that the change of the firepower of the cooker is controlled. In the related art, most plug valves are in stepless adjustment, and a user needs to judge the firepower by bending down to observe the size of flame, so that the process of adjusting the firepower is troublesome, and the user experience is reduced. When a user adjusts the firepower through silk screen printing on the panel of the stove, the user can only observe whether the cooker is rotated in place or not through naked eyes, the cooker is easy to be larger or smaller, and after the cooker is assembled, the damping hand feeling is not adjustable, so that inconvenience is brought to the user.

With reference to fig. 1 to 7, for this reason, the present invention provides a plug valve 100, which comprises a housing 10, a valve rod 20, an ignition switch 62, a rotation block 30, a positioning block 51, an elastic member 52, a positioning member 40 and an adjusting block 53, wherein the rotation block 30 is provided with a contact groove 301 spaced at a certain angle (0 °, 50 °, 70 °, 90 °, 120 °, 150 °, 180 °, 210 °, 240 °, 270 °), the housing 10 is provided with a vertical groove 301 and a guide channel 102 opposite to the groove 301, and accommodates the elastic member 52 and the positioning block 51, the positioning block 51 slides into and slides out of the groove 301 when the rotation block 30 moves around the coaxial circumference of the valve rod 20 under the action of the elastic member 52, and when sliding into the groove 301, the positioning block 51 impacts the rotation block 30 to make a sound and realize positioning. When the positioning block is to slide out of the contact groove 301, the groove 301 generates resistance to the positioning block 51 to form a damping hand feeling. Meanwhile, the housing 10 is also provided with an accommodating cavity 101, an annular groove 103 is formed in the accommodating cavity 101, the rotating block 30 is arranged in the accommodating cavity 101, and the positioning member 40 is embedded in the annular groove 103 and protrudes towards the accommodating cavity 101 to limit the rotating block 30, so that the stability of the rotating block 30 is improved. Specifically, when the rotating block 30 is rotated by the valve rod 20 in the accommodating chamber 101, the positioning block 51 can prevent the assembling rotating block 30 from falling or falling out of the accommodating chamber 101. When the positioning block 51, the elastic element 52 and the adjusting block 53 are assembled, the positioning block, the elastic element and the adjusting block are of an integrated structure, so that the positioning block, the elastic element and the adjusting block can be conveniently assembled and managed with the plug valve 100. Because the positioning block 51 and the elastic element 42 are preassembled in the spring plunger 50, the production efficiency is higher, the surface of the spring plunger 50 is provided with external threads, the guide channel 102 of the vertical groove 301 of the accommodating cavity 101 is also provided with corresponding internal threads, the damping hand feeling can be adjusted by adjusting the depth of the spring plunger 50, and the applicability is stronger.

Referring to fig. 2, the end of the spring plunger 50 may be provided with a hexagonal recess, and the outer surface of the spring plunger 50 may be provided with a thread feature that is engaged with the guide channel 102, so that the spring plunger 50 may move inside the guide channel 102 by using a hexagonal wrench, thereby adjusting the contact force between the spring plunger 50 and the rotary block 30, and changing the strength of the damping hand feeling.

According to the utility model discloses plug valve 100 is equipped with the recess 301 of different angles and quantity on the rotatory piece 30, and the elasticity variation in size of elastic component 52 can realize the location of different angles and feel light and heavy, because locating piece 51 and elastic component 52 pre-installation are in spring plunger 50, and production efficiency is higher. The surface of the spring plunger 50 is provided with external threads, the guide channel 102 is also provided with corresponding internal threads, the damping hand feeling can be adjusted by adjusting the depth of the spring plunger 50, and the applicability is stronger. The integral structure is integrated when the assembly is completed, so that the assembly with the plug valve 100 is convenient, the production is convenient, and the modular management is realized.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (13)

1. A plug valve, comprising:

the device comprises a shell, a guide channel and a positioning mechanism, wherein the shell is internally provided with an accommodating cavity with an open lower side and the guide channel is arranged on the peripheral wall of the accommodating cavity;

a valve stem rotatably connected to the housing;

the rotating block is connected with the valve rod and relatively fixed along the circumferential direction, and the rotating block is arranged in the accommodating cavity and is opposite to the guide channel;

the positioning block is arranged in the guide channel;

the adjusting block is embedded into the guide channel;

the elastic piece is respectively abutted against the adjusting block and the positioning block so as to push the positioning block to be abutted against the rotating block,

the adjusting block can move along the extending direction of the guide channel so as to adjust the pretightening force of the elastic piece.

2. The plug valve of claim 1, wherein a second end of said guide channel is distal from said receiving cavity and extends through an outer side of said housing to accommodate adjustment of the position of said adjustment block from said second end of said guide channel.

3. The plug valve of claim 1 or 2, wherein the adjustment block is threadably engaged with the peripheral wall of the guide channel.

4. A plug valve according to claim 1 or 2, wherein the locating block, the adjustment block and the resilient element are combined into a spring plunger.

5. The plug valve of claim 1, wherein the first end of the guide channel is disposed adjacent to the receiving cavity and has a stop flange, the positioning block has a main body portion and a positioning portion, the main body portion is disposed in the receiving cavity and opposite to the stop flange, and the positioning portion is connected to the main body portion and extends into the receiving cavity through the stop flange.

6. The plug valve of claim 1, wherein a groove is formed on an outer circumferential surface of the rotary block, and the positioning block is pushed toward the rotary block by an elastic member and adapted to slide into and out of the groove when the valve stem is rotated.

7. The plug valve of claim 6, wherein the outer peripheral surface of the rotation block is provided with at least three grooves, and the at least three grooves are arranged at equal intervals or non-equal intervals along the circumference of the valve rod assembly.

8. The plug valve according to claim 1, wherein an annular groove is formed in an inner circumferential surface of the receiving cavity, and the plug valve further comprises a positioning member, wherein the positioning member is an annular elastic structure with an opening, and is embedded into the annular groove and protrudes towards the receiving cavity to limit the rotating block.

9. The plug valve of claim 1, wherein a support block is disposed on an inner top surface of the receiving cavity, and a lower end of the support block is opposite to the rotating block.

10. The plug valve of claim 1, wherein the rotation block is movably engaged with the valve stem in an axial direction of the valve stem.

11. The plug valve of claim 1, wherein the rotating block is provided with a mounting hole, the valve rod is provided with a flat structure, the flat structure is sleeved and matched with the mounting hole so that the valve rod and the rotating block are relatively fixed along the circumferential direction of the valve rod, and the flat structure is spaced from the lower end surface of the valve rod by a preset distance.

12. The plug valve of claim 1, wherein an ignition switch is disposed on the housing, a relief groove is disposed on the valve rod, the valve rod is movably connected to the housing along the axial direction, the valve rod has a first position and a second position in the circumferential direction, a contact of the ignition switch is embedded into the relief groove when the valve rod is at the first position, and an outer peripheral surface of the valve rod abuts against the contact of the ignition switch to trigger the ignition switch when the valve rod is at the second position.

13. A gas appliance comprising a plug valve according to any one of claims 1 to 12.

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