Pipeline structure for gas stove and gas stove thereof

Abstract

The present invention discloses a pipeline structure for a gas stove, characterized in that it includes an air intake pipe assembly, a connecting assembly, and an integrated valve body, wherein the air intake pipe assembly and the integrated valve body are fixedly connected via the connecting assembly; the present invention also discloses a gas stove using the pipeline structure. The present invention adopts the method of assembling the air intake pipe assembly, the integrated valve body, and the connections to form a pipeline structure for a gas stove, so that the entire assembly process is simple and fast, which is conducive to mass production, has high production efficiency, low cost, and long service life, and also effectively reduces the product maintenance rate; in addition, the present invention has a small number of assembly procedures, a small number of accessories that are not easily confused, a small cumulative error, and a high assembly accuracy, so that the valve body and the ejector pipe in the burner are well aligned, thereby not easily affecting the combustion conditions of the gas stove.

Description

Technical Field

[0001] The invention belongs to the technical field of kitchen appliances, and in particular relates to a pipeline structure for a gas stove and a gas stove thereof. Background Art

[0002] The air intake structure of the existing embedded gas double stove is as follows: the end of a main air intake pipe is divided into two left and right branches (mostly "Y"-shaped or "T"-shaped structures), and air outlet holes are opened on the left and right branches. The air outlet holes are connected to the air intake holes of the left and right valve bodies, and are connected and fixed with screws through a pipe clamp or a flange structure. The front end of the main air intake pipe is provided with an air intake joint and a solenoid valve seat, and the solenoid valve seat is equipped with a solenoid valve. The air intake joint is connected to the gas source pipe. The solenoid valve is mainly used to cut off or conduct the gas flowing through the stove. This traditional gas delivery control system has the following shortcomings: ① After the gas is throttled by the solenoid valve, it is divided to the air inlet of the left and right valve bodies through a long-distance air intake pipeline. During this period, the gas pressure loss is large, which is not conducive to the combustion of the burner; ② The left and right valve bodies need to be assembled separately, the number of accessories is large and easy to confuse, the installation process is complicated, the efficiency is low, and it is not conducive to mass production; ③ There are many assembly processes, large cumulative errors, and low assembly accuracy, resulting in poor centering between the valve body and the burner ejector pipe, which directly affects the combustion condition. ④Due to the complex assembly, maintenance is difficult. Summary of the invention

[0003] In view of this, the main purpose of the present invention is to provide a pipeline structure for a gas stove, which solves the problem that the existing pipeline structure has complicated assembly or maintenance procedures, affecting production efficiency and service life, while also causing reduced assembly accuracy and affecting the alignment of the valve body and the burner, thereby directly affecting the combustion performance of the gas stove.

[0004] The present invention also aims to provide a gas stove using the pipeline structure.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is implemented as follows: a pipeline structure for a gas stove, characterized in that it includes an air intake pipe assembly, a connecting assembly, and an integrated valve body, and the air intake pipe assembly and the integrated valve body are fixedly connected by the connecting assembly.

[0006] Preferably, the air intake pipe assembly comprises an air intake pipe, an air intake pipe mounting seat, and an air intake pipe connector. The air intake pipe mounting seat is arranged at the front end of the air intake pipe, and the air intake pipe connector is arranged at the rear end of the air intake pipe.

[0007] Preferably, the connecting assembly includes an intake pipe connecting seat and a fixing piece, a step hole is provided in the middle of the intake pipe connecting seat, and the step hole is matched and connected with the intake pipe connecting head; a straight through hole matching with the fixing piece is provided on the side wall of one end of the intake pipe connecting seat close to the intake pipe connecting head, and a fixing groove is provided on the outer side wall of the intake pipe connecting head, and the end of the fixing piece passes through the straight through hole and is accommodated in the fixing groove.

[0008] Preferably, there are two straight through holes which are symmetrically arranged on both sides of the air intake pipe connecting seat.

[0009] Preferably, the connecting assembly includes an intake pipe connecting seat and a latch, a step hole is provided in the middle of the intake pipe connecting seat, and the step hole is matched and connected with the intake pipe connecting head; a straight through hole and an open groove matching with the latch are provided on the side wall of one end of the intake pipe connecting seat close to the intake pipe connecting head, and a latch groove is provided on the outer side wall of the intake pipe connecting head, and the end of the latch passes through the straight through hole and the open groove and is accommodated in the latch groove.

[0010] Preferably, the through hole and the open groove are symmetrically arranged on both sides of the intake pipe connecting seat.

[0011] Preferably, the diameter of the through hole matches the diameter of the latch; the width of the opening slot is the same as the diameter of the through hole.

[0012] Preferably, the latch is a U-shaped latch.

[0013] Preferably, a sealing ring groove is further provided on the outer side wall of the air intake pipe connector, and a sealing ring is provided in the sealing ring groove.

[0014] Preferably, the integrated valve body includes a first air channel, a second air channel, a third air channel, a fourth air channel, a first holding chamber, a second holding chamber, a third holding chamber, a first airflow nozzle assembly, a second airflow nozzle assembly, an electromagnetic valve and a control valve assembly; the air outlet end of the first air channel is connected to the air inlet end of the second air channel through the first holding chamber, the air inlet ends of the third air channel and the fourth air channel are respectively connected to the air outlet end of the second air channel, the air outlet end of the third air channel is connected to the first airflow nozzle assembly through the second holding chamber, and the air outlet end of the fourth air channel is connected to the second airflow nozzle assembly through the third holding chamber; the electromagnetic valve is arranged at the upper end of the first holding chamber; the control valve assembly is arranged to be two and rotatable and built-in in the second holding chamber and the third holding chamber respectively.

[0015] Another technical solution of the present invention is achieved as follows: a gas stove, which includes a gas stove body, a burner and the above-mentioned pipeline structure, wherein the burner and the pipeline structure are both arranged in the gas stove body.

[0016] Preferably, the gas stove body comprises a bottom shell, a through hole is arranged on the bottom shell at a position corresponding to the air intake pipe mounting seat in the pipeline structure, and the air intake pipe mounting seat is inserted in the through hole.

[0017] Preferably, a cutout is provided at the lower end of the air intake pipe connecting seat, and the upper end surface of the cutout abuts against the upper end surface of the bottom shell.

[0018] Compared with the prior art, the present invention adopts an integrated valve body of the air intake pipe assembly and connects and assembles them to form a pipeline structure for the gas stove, so that the entire assembly process is simple and quick, which is conducive to mass production, has high production efficiency, low cost, and long service life, and also effectively reduces the product maintenance rate; in addition, the structure of the present invention has fewer assembly steps, fewer accessories and is not easy to confuse, has a small cumulative error, and has high assembly accuracy, so that the valve body and the ejector pipe in the burner are well aligned, thereby not easily affecting the combustion condition of the gas stove. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a pipeline structure for a gas stove provided in Embodiment 2 of the present invention;

[0020] Figure 2 An exploded diagram of a pipeline structure for a gas stove provided in Example 2 of the present invention;

[0021] Figure 3 for Figure 4 A cross section of an air inlet pipe connection seat in a pipeline structure for a gas stove provided in Example 2 of the present invention Figure 1 ;

[0022] Figure 4 A cross section of an air inlet pipe connection seat in a pipeline structure for a gas stove provided in Example 2 of the present invention Figure 2 ;

[0023] Figure 5 A transverse cross-sectional view of a connecting assembly in a pipeline structure for a gas stove provided in Example 2 of the present invention;

[0024] Figure 6 A schematic diagram of the three-dimensional structure of an integrated valve body in a pipeline structure for a gas stove provided in Example 2 of the present invention Figure 1 ;

[0025] Figure 7 A schematic diagram of the three-dimensional structure of an integrated valve body in a pipeline structure for a gas stove provided in Example 2 of the present invention Figure 2 ;

[0026] Figure 8A top view of an integrated valve body in a pipeline structure for a gas stove provided in Example 2 of the present invention;

[0027] Fig. 9 A three-dimensional cross-section of an integrated valve body in a pipeline structure for a gas stove provided in Example 2 of the present invention Figure 1 ;

[0028] Fig.10 A three-dimensional cross-section of an integrated valve body in a pipeline structure for a gas stove provided in Example 2 of the present invention Figure 2 ;

[0029] Fig.11 A three-dimensional cross-section of an integrated valve body in a pipeline structure for a gas stove provided in Example 2 of the present invention Figure 3 ;

[0030] Fig.12 An exploded view of a control valve assembly in a pipeline structure for a gas stove provided in Embodiment 2 of the present invention;

[0031] Fig.13 A schematic diagram of the structure of a valve core in a pipeline structure for a gas stove provided in Embodiment 2 of the present invention;

[0032] Fig.14 An exploded diagram of a pipeline structure for a gas stove provided in Example 2 of the present invention;

[0033] Fig.15 A schematic structural diagram of an air inlet pipe connection seat in a pipeline structure for a gas stove provided in Embodiment 2 of the present invention;

[0034] Fig.16 A top view of a gas stove provided in Embodiment 3 of the present invention;

[0035] Fig.17 A connection diagram of an air inlet pipe connection seat in a pipeline structure for a gas stove provided in Example 2 of the present invention and a gas stove body in a gas stove provided in Example 3 of the present invention;

[0036] Fig.18 It is a structural schematic diagram of a valve body in the prior art. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0038] In the description of the present invention, it should be clarified that terms such as "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", and "horizontal" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are merely for the convenience of describing the present invention. They do not mean that the devices or elements referred to must have a specific direction or position, and therefore cannot be understood as limitations on the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Example 1

[0041] Embodiment 1 of the present invention provides a pipeline structure for a gas stove, such as Figure 1 As shown, it includes an intake pipe assembly 1 , a connecting assembly 2 , and an integrated valve body 3 , and the intake pipe assembly 1 and the integrated valve body 3 are fixedly connected via the connecting assembly 2 .

[0042] After adopting the above scheme, by adopting the integrated valve body of the intake pipe assembly and connecting and assembling them to form a pipeline structure for the gas stove, the whole assembly process is simple and quick, which is conducive to mass production, has high production efficiency, low cost, and long service life, and also effectively reduces the product maintenance rate; in addition, the structure of the present invention has fewer assembly steps, fewer accessories and is not easy to confuse, has a small cumulative error, and has high assembly accuracy, so that the valve body and the ejector tube in the burner are well aligned, thereby not easily affecting the combustion condition of the gas stove.

[0043] Furthermore, if Figure 2 As shown, the intake pipe assembly 1 includes an intake pipe 1-1, an intake pipe mounting seat 1-2, and an intake pipe connector 1-3. The intake pipe mounting seat 1-2 is arranged at the front end of the intake pipe 1-1, and the intake pipe connector 1-3 is arranged at the rear end of the intake pipe 1-1.

[0044] Furthermore, the connecting assembly 2 includes an intake pipe connecting seat 2-1 and a fixing piece (not shown in the figure), and a step hole 2-1-1 is provided in the middle of the intake pipe connecting seat 2-1, and the step hole 2-1-1 is matched and connected with the intake pipe connector 1-3; a straight hole 2-1-2 matching with the fixing piece is provided on the side wall of one end of the intake pipe connecting seat 2-1 close to the intake pipe connector 1-3, and a fixing groove is provided on the outer side wall of the intake pipe connector 1-3, and the end of the fixing piece passes through the straight hole 2-1-2 and is accommodated in the fixing groove; wherein, the fixing piece can be selected as a fixing piece such as a positioning pin.

[0045] Furthermore, two through holes 2-1-2 are provided and are symmetrically arranged on both sides of the intake pipe connecting seat 2-1.

[0046] Furthermore, if Figure 2 As shown, a sealing ring groove 1-3-2 is also provided on the outer side wall of the air intake pipe connector 1-3, and a sealing ring 1-3-3 is provided in the sealing ring groove 1-3-2;

[0047] After adopting the above scheme, by also providing a sealing ring groove 1-3-2 and a sealing ring 1-3-3 on the outer wall of the intake pipe connector 1-3, the sealing between the intake pipe 1-1 and the intake pipe connector 1-3 can be effectively increased to prevent the gas from leaking during the transportation process.

[0048] Example 2

[0049] Embodiment 2 of the present invention provides a pipeline structure for a gas stove, such as Figure 1 As shown, it includes an intake pipe assembly 1 , a connecting assembly 2 , and an integrated valve body 3 , and the intake pipe assembly 1 and the integrated valve body 3 are fixedly connected via the connecting assembly 2 .

[0050] After adopting the above scheme, by adopting the integrated valve body of the intake pipe assembly and connecting and assembling them to form a pipeline structure for the gas stove, the whole assembly process is simple and quick, which is conducive to mass production, has high production efficiency, low cost, and long service life, and also effectively reduces the product maintenance rate; in addition, the structure of the present invention has fewer assembly steps, fewer accessories and is not easy to confuse, has a small cumulative error, and has high assembly accuracy, so that the valve body and the ejector tube in the burner are well aligned, thereby not easily affecting the combustion condition of the gas stove.

[0051] Furthermore, if Figure 2 As shown, the intake pipe assembly 1 includes an intake pipe 1-1, an intake pipe mounting seat 1-2, and an intake pipe connector 1-3. The intake pipe mounting seat 1-2 is arranged at the front end of the intake pipe 1-1, and the intake pipe connector 1-3 is arranged at the rear end of the intake pipe 1-1.

[0052] Furthermore, if Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the connecting assembly 2 includes an intake pipe connecting seat 2-1 and a latch 2-2, a step hole 2-1-1 is provided in the middle of the intake pipe connecting seat 2-1, and the step hole 2-1-1 is matched and connected with the intake pipe connecting head 1-3; a straight hole 2-1-2 and an open groove 2-1-3 matching with the latch 2-2 are provided on the side wall of one end of the intake pipe connecting seat 2-1 close to the intake pipe connecting head 1-3, and a latch groove 1-3-1 is provided on the outer side wall of the intake pipe connecting head 1-3, one end of the latch 2-2 passes through the straight hole 2-1-2 and the open groove 2-1-3 and is accommodated in the latch groove 1-3-1; by providing the latch groove 1-3-1 on the outer side wall of the intake pipe connecting head 1-3, the latch 2-2 can be effectively fixed to prevent it from falling off.

[0053] Furthermore, if Figure 2 As shown, the straight through hole 2-1-2 and the open groove 2-1-3 are symmetrically arranged on both sides of the intake pipe connecting seat 2-1.

[0054] Furthermore, the diameter of the through hole 2-1-2 matches the diameter of the U-shaped pin; the width of the open slot 2-1-3 is the same as the diameter of the through hole 2-1-2; this arrangement can increase the firmness between the U-shaped pin and the intake pipe connector 1-3, and it is not easy for the U-shaped pin to shake in the through hole 2-1-2 and the open slot 2-1-3.

[0055] Furthermore, if Figure 2 and Figure 4 As shown, a sealing ring groove 1-3-2 is also provided on the outer side wall of the air intake pipe connector 1-3, and a sealing ring 1-3-3 is provided in the sealing ring groove 1-3-2;

[0056] After adopting the above scheme, by also providing a sealing ring groove 1-3-2 and a sealing ring 1-3-3 on the outer wall of the intake pipe connector 1-3, the sealing between the intake pipe 1-1 and the intake pipe connector 1-3 can be effectively increased to prevent the gas from leaking during the transportation process.

[0057] In addition, the integrated valve body 3 provided in Embodiment 1 and Embodiment 2 of the present invention is as follows: Figure 6 , Figure 7 , Figure 8 As shown, it includes a first air channel 3-1, a second air channel 3-2, a third air channel 3-3, a fourth air channel 3-4, a first chamber 3-5, a second chamber 3-6, a third chamber 3-7, a first air flow nozzle assembly 3-8, a second air flow nozzle assembly 3-9, a solenoid valve 3-10 and a control valve assembly 3-11;

[0058] The outlet end of the first air channel 3-1 is connected to the inlet end of the second air channel 3-2 through the first chamber 3-5, the inlet ends of the third air channel 3-3 and the fourth air channel 3-4 are respectively connected to the outlet end of the second air channel 3-2, the outlet end of the third air channel 3-3 is connected to the first airflow nozzle assembly 3-8 through the second chamber 3-6, and the outlet end of the fourth air channel 3-4 is connected to the second airflow nozzle assembly 3-9 through the third chamber 3-7;

[0059] The solenoid valve 3-10 is arranged at the upper end of the first chamber 3-5;

[0060] The control valve assembly 3-11 is provided in two and is rotatably built into the second volume chamber 3-6 and the third volume chamber 3-7 respectively.

[0061] After adopting the above scheme, by adopting the design mode of assembling the first air channel 3-1, the second air channel 3-2, the third air channel 3-3, the fourth air channel 3-4, the first chamber 3-5, the second chamber 3-6, the third chamber 3-7, the first air flow nozzle assembly 3-8 and the second air flow nozzle assembly 3-9 to form a valve shell for the valve body, the entire valve body structure is formed in one piece, thereby replacing the current complex valve body structure (such as the one formed by fixing the intake pipe assembly with the left valve body 5 and the right valve body 6) Fig.16 As shown); in addition, the structure of the present invention is simple, fast and highly precise to assemble, is conducive to mass production, has high production efficiency, low cost and long service life, and also effectively reduces the product maintenance rate.

[0062] Furthermore, if Fig. 9 As shown, a first through hole 3-5-1 communicating with the first air channel 3-1 is provided on the inner upper end side wall of the first chamber 3-5, a conical boss 3-5-2 is provided on the inner lower end side wall, and a second through hole 3-5-3 communicating with the second air channel 3-2 is provided in the middle of the conical boss 3-5-2.

[0063] Furthermore, if Fig. 9 and Fig.14 As shown, a sealing rubber pad 3-10-1 is provided at one end of the solenoid valve 3-10 connected to the first chamber 3-5, and the sealing rubber pad 3-10-1 is matched and connected with the conical boss 3-5-2.

[0064] Furthermore, if Fig.10As shown, the second chamber 3-6 and the third chamber 3-7 have the same structure, and the second chamber 3-6 or the third chamber 3-7 includes a first conical chamber 3-6-1 and a first cylindrical chamber 3-6-2 that cooperate with the control valve assembly 3-11, the first cylindrical chamber 3-6-2 is located on the upper part of the first conical chamber 3-6-1 and the two are fixedly connected, and a fixed platform 3-6-3 for fixing the micro switch 3-11-3 in the control valve assembly 3-11 is also provided between the first conical chamber 3-6-1 and the first cylindrical chamber 3-6-2.

[0065] Furthermore, if Fig.10 As shown, a third through hole 3-6-1-1 is provided at the bottom of the first conical chamber 3-6-1, and a fourth through hole 3-6-1-2 and a fifth through hole 3-6-1-3 are provided on the side wall, the third through hole 3-6-1-1 and the fourth through hole 3-6-1-2 are both connected to the first airflow nozzle assembly 3-8, and the fifth through hole 3-6-1-3 is connected to the third air duct 3-3.

[0066] Furthermore, if Figure 8 As shown, the structures of the first airflow nozzle assembly 3-8 and the second airflow nozzle assembly 3-9 are the same, and the first airflow nozzle assembly 3-8 or the second airflow nozzle assembly 3-9 includes an outer ring airflow pipe 3-8-1, an inner ring airflow pipe 3-8-2, an outer ring nozzle 3-8-3, an inner ring nozzle 3-8-4 and a fixing member 3-8-5; the outer ring airflow pipe 3-8-1 is fixedly connected to the inner ring airflow pipe 3-8-2 by the fixing member 3-8-5; the outer ring nozzle 3-8-3 is arranged at the outlet end of the outer ring airflow pipe 3-8-1, and the inner ring nozzle 3-8-4 is arranged at the outlet end of the inner ring airflow pipe 3-8-2.

[0067] Furthermore, if Fig.11 As shown, the air inlet of the outer ring airflow tube 3-8-1 is connected to the fourth through hole 3-6-1-2 set on the side wall of the first conical chamber 3-6-1, and the air inlet of the inner ring airflow tube 3-8-2 is connected to the third through hole 3-6-1-1 set at the bottom of the first conical chamber 3-6-1.

[0068] Furthermore, the first air channel 3-1 and the first receiving chamber 3-5, the first receiving chamber 3-5 and the second air channel 3-2, the third air channel 3-3 and the fourth air channel 3-4, the third air channel 3-3 and the second receiving chamber 3-6, and the fourth air channel 3-4 and the third receiving chamber 3-7 are all integrally formed structures.

[0069] Furthermore, if Fig.12As shown, the control valve assembly 3-11 includes a valve core 3-11-1, a valve cover unit 3-11-2, a micro switch 3-11-3 and a control unit 3-11-4. The valve core 3-11-1 is arranged in the first conical chamber 3-6-1 in the second chamber 3-6. The valve cover unit 3-11-2 is arranged above the valve core 3-11-1 and is fixedly connected to the first cylindrical chamber 3-6-2 in the second chamber 3-6. The control unit 3-11-4 is arranged between the valve core 3-11-1 and the valve cover unit 3-11-2. A through groove 3-6-2-1 is arranged on the side wall of the first cylindrical chamber 3-6-2 in the second chamber 3-6. The through groove 3-6-2-1 connects the outside and the inner cavity of the first cylindrical chamber 3-6-2. The sensing end of the micro switch 3-11-3 is arranged in the through groove 3-6-2-1 and corresponds to the control unit 3-11-4.

[0070] Furthermore, if Fig.12 and Fig.13 As shown, the valve core 3-11-1 includes a second conical chamber 3-11-1-1 and a second cylindrical chamber 3-11-1-2, the second cylindrical chamber 3-11-1-2 is located at the upper end of the second conical chamber 3-11-1-1 and the two are fixedly connected, a blind hole 3-11-1-3 is provided in the middle of the second conical chamber 3-11-1-1, and a straight hole 3-11-1-4 is provided on the inner side wall of the second conical chamber 3-11-1-1, which cooperates with the fourth through hole 3-6-1-2 and the fifth through hole 3-6-1-3 on the side wall of the first conical chamber 3-6-1.

[0071] Furthermore, the control unit 3-11-4 includes a paddle 3-11-4-1 and a connecting spring 3-11-4-2. A notch platform 3-11-1-5 is provided on the second cylindrical chamber 3-11-1-2 at the upper end of the valve core 3-11-1. The paddle 3-11-4-1 and the connecting spring 3-11-4-2 are sequentially mounted on the notch platform 3-11-1-5 from bottom to top. A protrusion 3-11-4-2 that can contact the micro switch is horizontally extended outward on the outer side of the paddle 3-11-4-1; one end of the connecting spring 3-11-4-2 abuts against the paddle 3-11-4-1, and the other end abuts against the valve cover unit 3-11-2.

[0072] Furthermore, the first air channel 3-1 is a folded channel, and a flange plate 3-1-1 is provided on the top of one end of the first air channel 3-1 away from the first chamber 3-5, and the air intake pipe connecting seat 2-1 is connected to the first air channel 3-1 through the flange plate 3-1-1.

[0073] The assembly process and use principle of the integrated valve body 3 provided in Embodiment 1 and Embodiment 2 of the present invention are as follows:

[0074] The rear end of the first air passage 3-1 in the integrated valve body 3 of the present invention is communicated with the first chamber 3-5; a flange plate 3-1-1 is provided on the upper part of the first chamber 3-5, a first through hole 3-5-1 communicating with the first air passage 3-1 is provided on the internal upper side wall, a conical boss 3-5-2 is provided on the internal lower side wall, a second through hole 3-5-3 communicating with the second air passage 3-2 is provided in the middle of the conical boss 3-5-2, the solenoid valve 3-10 is installed in the first chamber 3-5, and is fixed on the flange plate 3-1-1 with screws, and the sealing pad 3-10-1 in the solenoid valve 3-10 abuts against the conical boss 3-5-2. When the solenoid valve 3-10 opens, its sealing pad 3-10-1 is separated from the conical boss 3-5-2 under the action of electromagnetic force, and the air path is connected. When the solenoid valve 3-10 closes, its sealing pad 3-10-1 is pressed against the spring 3-10-2 Under the action of elastic force, it abuts against the conical boss 3-5-2 to cut off the air path; the left and right ends of the second air channel 3-2 are connected to the third air channel 3-3 and the fourth air channel 3-4 to form a three-way structure, the third air channel 3-3 is connected to the second chamber 3-6, and the fourth air channel 3-4 is connected to the third chamber 3-7; the lower part of the second chamber 3-6 is the first conical chamber 3-6-1, and the upper part is the first cylindrical chamber 3-6-2. The upper first cylindrical chamber 3-6-2 is used to accommodate the second cylindrical chamber 3-11-1-2, the paddle 3-11-4-1 and the connecting spring 3-11-4-2 on the valve core 3-11-1, and the top end is covered with a valve cover unit 3-11-2, the valve stem of the valve cover unit 3-11-2 is pressed down, and the lower end of the valve stem passes through the connecting spring 3-1 1-4-2, the paddle 3-11-4-1 is sleeved on the second cylindrical chamber 3-11-1-2 at the upper end of the valve core 3-11-1, and the valve stem is rotated to drive the paddle 3-11-4-1 and the valve core 3-11-1 to rotate synchronously, and the paddle 3-11-4-1 rotates away from the micro switch 203, the micro switch 3-11-3 is turned on, the ignition controller is turned on, and the ignition needle on the burner discharges, so that the burner ignites and burns; the first conical chamber 3-6-1 at the lower part of the second chamber 3-6 and the valve core 3-11-1 The second conical chamber 3-11-1 is matched and the valve core 3-11-1 can rotate freely in the second chamber 3-6. The third through hole 3-6-1-1, the fourth through hole 3-6-1-2 and the fifth through hole 3-6-1-3 are respectively provided at the bottom and the side of the first conical chamber 3-6-1. The third through hole 3-6-1-1 at the bottom is connected to the inner ring nozzle 3-8-4, and the fourth through hole 3-6-1-2 at the side is connected to the inner ring nozzle 3-8-4. The outer ring nozzle 3-8-3 is connected; the valve core 3-11-1 is a cone + straight column structure, the lower part is the second conical chamber 3-11-1-1, a blind hole 3-11-1-3 is arranged at the center, and a straight hole 3-11-1-4 is arranged on the inner wall of the second conical chamber 3-11-1-1 to match the fourth through hole 3-6-1-2 and the fifth through hole 3-6-1-3 on the side wall of the first conical chamber 3-6-1.

[0075] On the inner side wall of the second conical chamber 3-11-1-1, there are arranged straight holes 3-11-1-4 corresponding to the fourth through holes 3-6-1-2 and the fifth through holes 3-6-1-3 on the side wall of the first conical chamber 3-6-1. The two straight holes 3-11-1-4 are communicated with the blind hole 3-11-1-3 at the center of the valve core 3-11-1. In this way, by rotating the valve core 3-11-1, the hole on the side of the cone of the valve core 3-11-1 is communicated with the hole of the third gas channel. The gas is divided into an outer ring gas flow and an inner ring gas flow through the blind hole at the center of the valve core. The outer ring gas flow is sprayed into the outer ring ejector pipe of the burner through the outer ring nozzle, and the inner ring gas flow is sprayed into the inner ring ejector pipe of the burner through the inner ring nozzle. The valve core 3-11-1 is rotated continuously, and the aperture of the conduction changes, causing the gas flow of the outer ring nozzle and the inner ring nozzle to change, and the firepower of the combustion also changes. Similarly, the fourth gas channel on the right and the third chamber are also in this way.

[0076] The present invention is assembled into an integrated valve body in this way. During production, only the two positioning pins 3-6-1-4 (such as Figure 7 As shown in the figure, install it into the two corresponding positioning holes (not shown in the figure) of the gas stove body (shell), and use a screw to pass through the screw installation holes 3-12 (as shown in the figure). Figure 8 As shown in the figure, it can be fixed on the gas stove housing. Since the present invention is an integrated type and formed in one step, the position accuracy of the two positioning pins is high. After positioning and assembly, it is easy to ensure the assembly position accuracy of the inner ring nozzle, the outer ring nozzle and the inner and outer injection tubes of the burner, so that they are well aligned to ensure the injection and combustion performance of the burner. The assembly process and use principle of a pipeline structure for a gas stove provided in Example 2 of the present invention are as follows:

[0077] When assembling the structure of the present invention, a screw is passed through the screw mounting hole 3-12 on the integrated valve body 3 to firmly and accurately fix the integrated valve body 3 in the gas stove body (on the bottom shell), and then the front end of the intake pipe assembly 1 of the present invention The intake pipe mounting seat 1-2 is inserted into the rectangular through hole 4 in the middle of the bottom shell, so that the upper end surface of the cutout 1-4 of the intake pipe mounting seat 1-2 is flush with the upper surface of the bottom shell 4 and slides along the rear of the shell, see Fig.15 and Fig.17; Insert the O-ring 1-3-3 into the sealing ring groove 1-3-2 of the intake pipe connector 1-3 at the other end of the intake pipe assembly 1, and then insert the intake pipe connector 1-3 into the step hole 2-1-1 in the intake pipe connection seat 2-1 connected to the integrated valve body 3, so that the end face of the intake pipe connector 1-3 presses against the bottom end face of the step hole 2-1-1 of the intake pipe connection seat 2-1, and finally insert one end of the U-shaped plug 2-2 into the straight hole 2-1-2 on the intake pipe connection seat 2-1, and the U-shaped plug 2- The other end of 2 is inserted into the open groove 2-1-3. Since the latch 2-2 has rigidity and elasticity, the latch 2-2 will tightly "hug" the cylindrical surface of the latch groove 1-3-1 on the air intake pipe connector 1-3 after being inserted into place. The insertion of the latch 2-2 into the latch groove 1-3-1 limits the front-to-back movement of the air intake pipe connector 1-3, preventing the air intake pipe assembly 1 from falling out, and making the air intake pipe assembly 1 tightly connected with the integrated valve body 3, so that the stove intake structure is fixed as a whole in the gas stove body, which is convenient, fast and firm.

[0078] Example 3

[0079] A gas stove is provided in Example 3 of the present invention, which includes a gas stove body, a burner and the pipeline structure described in Example 1. The burner and the pipeline structure are both arranged in the gas stove body, and the outer ring nozzle 3-8-3 on the outer ring airflow pipe 3-8-1 and the inner ring nozzle 3-8-4 on the inner ring airflow pipe 3-8-2 in the pipeline structure are respectively connected to the outer ring ejector pipe and the inner ring ejector pipe in the burner.

[0080] By applying the pipeline structure described in Example 1 or Example 2 to the gas stove body described in Example 3, the complex valve body structure currently assembled by fixing the air intake pipe assembly with the left valve body 5 and the right valve body 6 is replaced; in addition, the pipeline structure of the present invention has a simple and quick assembly process, which is conducive to mass production, has high production efficiency, low cost, and long service life, and also effectively reduces the product maintenance rate; in addition, the structure of the present invention has fewer assembly steps, fewer accessories and is not easy to confuse, has a small cumulative error, and has high assembly accuracy, so that the valve body and the ejector tube in the burner are well aligned, which is not easy to affect the combustion condition of the gas stove.

[0081] Furthermore, the gas stove body comprises a bottom shell 4, a through hole 4-1 is arranged on the bottom shell 4 at a position corresponding to the air intake pipe mounting seat 1-2 in the pipeline structure, and the air intake pipe mounting seat 1-2 is inserted into the through hole 4-1.

[0082] Furthermore, a cutout 1 - 2 - 1 is provided at the lower end of the air intake pipe connection seat 1 - 2 , and the upper end surface of the cutout 1 - 2 - 1 abuts against the upper end surface of the bottom shell 4 .

[0083] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A pipeline structure for a gas stove, characterized in that: The invention comprises an intake pipe assembly (1), a connecting assembly (2), and an integrated valve body (3), wherein the intake pipe assembly (1) and the integrated valve body (3) are fixedly connected via the connecting assembly (2); the intake pipe assembly (1) comprises an intake pipe (1-1), an intake pipe mounting seat (1-2), and an intake pipe connector (1-3), wherein the intake pipe mounting seat (1-2) is arranged at the front end of the intake pipe (1-1), and the intake pipe connector (1-3) is arranged at the rear end of the intake pipe (1-1); the connecting assembly (2) comprises an intake pipe connector seat (2 -1) and a fixing piece, a step hole (2-1-1) is provided in the middle of the intake pipe connection seat (2-1), and the step hole (2-1-1) is matched and connected with the intake pipe connection head (1-3); a straight through hole (2-1-2) matching with the fixing piece is provided on a side wall of one end of the intake pipe connection seat (2-1) close to the intake pipe connection head (1-3), and a fixing groove is provided on the outer side wall of the intake pipe connection head (1-3), and an end of the fixing piece passes through the straight through hole (2-1-2) and is accommodated in the fixing groove; The connection assembly (2) comprises an intake pipe connection seat (2-1) and a latch (2-2); a step hole (2-1-1) is provided in the middle of the intake pipe connection seat (2-1), and the step hole (2-1-1) is matched and connected with the intake pipe connector (1-3); a straight hole (2-1-2) and an open groove (2-1-3) matched with the latch (2-2) are provided on a side wall of one end of the intake pipe connection seat (2-1) close to the intake pipe connector (1-3); a latch groove (1-3-1) is provided on the outer side wall of the intake pipe connector (1-3); an end of the latch (2-2) passes through the straight hole (2-1-2) and the open groove (2-1-3) and is accommodated in the latch groove (1-3-1); The integrated valve body (3) comprises a first air channel (3-1), a second air channel (3-2), a third air channel (3-3), a fourth air channel (3-4), a first receiving chamber (3-5), a second receiving chamber (3-6), a third receiving chamber (3-7), a first air flow nozzle assembly (3-8), a second air flow nozzle assembly (3-9), a solenoid valve (3-10) and a control valve assembly (3-11); The air outlet end of the first air channel (3-1) is connected to the air inlet end of the second air channel (3-2) through the first receiving chamber (3-5); the air inlet ends of the third air channel (3-3) and the fourth air channel (3-4) are respectively connected to the air outlet end of the second air channel (3-2); the air outlet end of the third air channel (3-3) is connected to the first air flow nozzle assembly (3-8) through the second receiving chamber (3-6); and the air outlet end of the fourth air channel (3-4) is connected to the second air flow nozzle assembly (3-9) through the third receiving chamber (3-7); The solenoid valve (3-10) is arranged at the upper end of the first chamber (3-5); and the control valve assembly (3-11) is arranged in two parts and is rotatably built into the second chamber (3-6) and the third chamber (3-7).

2. A pipeline structure for a gas stove according to claim 1, characterized in that: The straight through holes (2-1-2) are two and are symmetrically arranged on both sides of the air intake pipe connection seat (2-1).

3. A pipeline structure for a gas stove according to claim 1, characterized in that: The straight through hole (2-1-2) and the open groove (2-1-3) are symmetrically arranged on both sides of the air intake pipe connection seat (2-1).

4. A pipeline structure for a gas stove according to claim 3, characterized in that: The diameter of the straight through hole (2-1-2) matches the diameter of the latch pin (2-2); the width of the opening slot (2-1-3) is the same as the diameter of the straight through hole (2-1-2).

5. A pipeline structure for a gas stove according to any one of claims 1 to 4, characterized in that: A sealing ring groove (1-3-2) is also provided on the outer side wall of the air intake pipe connector (1-3), and a sealing ring (1-3-3) is provided in the sealing ring groove (1-3-2).

6. A gas stove, characterized in that: The gas stove comprises a gas stove body, a burner and the pipeline structure according to any one of claims 1 to 5, wherein the burner and the pipeline structure are both arranged in the gas stove body.

7. A gas stove according to claim 6, characterized in that: The gas stove body comprises a bottom shell (4), a through hole (4-1) being provided on the bottom shell (4) at a position corresponding to the air intake pipe mounting seat (1-2) in the pipeline structure, and the air intake pipe mounting seat (1-2) being inserted into the through hole (4-1).

8. A gas stove according to claim 7, characterized in that: A cutout (1-2-1) is provided at the lower end of the air intake pipe mounting seat (1-2), and the upper end surface of the cutout (1-2-1) abuts against the upper end surface of the bottom shell (4).

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