An integrated gas control controller with split trigger

Abstract

The present invention relates to an integrated air-controlled controller with split triggering, comprising a shell and an execution control component arranged inside the shell; a control interface, a vacuum interface, an air interface and an output interface are arranged on the outer wall of the shell; the execution control component comprises an upper valve core component, a middle valve core component and a lower valve core component, which realize intermittent communication of the output interface with the vacuum interface and the air interface through the air pressure change of the control interface; the present invention adopts a split air-controlled button connected to the control interface for triggering, and the air-controlled controller involved is an integrated structure, with fewer parts and components in the overall structure and higher reliability. The air pressure change at the control interface realizes the axial movement of the execution control component, thereby controlling the output interface to be intermittently connected with the vacuum interface and the air interface, that is, controlling the output interface to intermittently let in air or form a vacuum.

Description

Technical Field

[0001] The present invention relates to the field of vacuum sewage collection, transportation and treatment technology, wherein vacuum sewage collection technology refers to a front-end device or product for collecting sewage at the source of sewage, including but not limited to various kitchens (such as toilets, urinals, shower rooms, bathtubs, etc.) and sanitary products (such as vegetable sinks, dishwashers, etc.); vacuum sewage transportation technology refers to the relevant technology of efficiently transporting sewage collected by front-end devices or products to sewage post-treatment equipment, including core components such as vacuum pump stations, sewage collection tanks, underground vacuum transportation pipe network systems, vacuum wells, fault detection and diagnosis systems, etc.; vacuum sewage treatment technology refers to post-treatment equipment or devices, the main function of which is to separate and purify the centralized collected sewage into solids and liquids, wherein the solids can be made into organic fertilizers, and the sewage can be filtered and purified by MBR membrane technology to achieve green discharge. The present invention particularly relates to a split-type triggered integrated gas control controller used in vacuum toilets. Background Art

[0002] In the field of vacuum domestic sewage collection, transportation and treatment technology, vacuum domestic sewage collection is the most advanced technology. Its basic implementation principle is as follows: First, the sewage collection inlet pipeline (or sewage discharge inlet pipeline) in the vacuum sewage transportation system is connected to various sewage front-end collection equipment, including but not limited to various kitchens (such as toilets, urinals, shower rooms, bathtubs, etc.) and sanitary products (such as vegetable sinks, dishwashers, etc.); secondly, the vacuum pump group generates vacuum in the vacuum sewage transportation system; finally, during the operation of the sewage front-end collection equipment, after the vacuum sewage valve is connected, the pressure difference between the external atmospheric pressure and the vacuum value inside the pipeline in the vacuum sewage transportation system is applied to the sewage and mixed with air to realize turbulent transportation of sewage to the sewage collection inlet pipeline (or sewage discharge inlet pipeline).

[0003] It is well known that the disadvantages of vacuum domestic sewage collection systems are that vacuum toilets have a high frequency of controller failures during operation and are inconvenient to use. There are several types of controllers:

[0004] First, purely mechanical type: reference patents include CN1201057C and US6128789. The controller mainly uses a lever mechanism and a cam mechanism for control.

[0005] Second, gas-controlled: There are two types of controllers:

[0006] (1) Single-button controllers, such as CN101107405A, CN200680003008.7, CN201580081233.1, US5069243, US4373838, US4171853, US5570715;

[0007] (2) Two-button controller, such as 202010655551.7 and 202010710038.3 large and small water two-button controllers and their vacuum sewage systems.

[0008] The reasons for these controller failures and deficiencies are:

[0009] Mechanical electronic control controllers have related mechanical parts, a large number of parts, a complex structure, poor reliability, and are heavy and large in size. Especially in the event of floods, the vacuum toilet is completely paralyzed.

[0010] Pneumatic air-operated controllers all have the function of delaying connection by pressing, and disconnection in the non-pressed state. However, the integrated pneumatic controller is inconvenient to use; the button trigger device of the known pneumatic controller is installed on the cover behind the vacuum toilet, which is inconvenient to use. For example, after using the toilet, you need to turn around and trigger the flush mode button. During operation, the user will see the feces in the toilet and smell the feces. In particular, the flushing noise of the current vacuum toilet is very loud, and the method of turning around and bending over to flush after using the toilet increases the residence time, which in turn increases the probability of being affected by the flushing noise.

[0011] Therefore, in view of the many shortcomings of mechanical electric control controllers and pneumatic air control controllers, the present invention has developed a split-triggered integrated air control controller to solve the problems existing in the prior art. After searching, no technical solutions identical or similar to the present invention were found. Summary of the invention

[0012] The purpose of the present invention is to provide a split-type triggered integrated gas-controlled controller to solve the problems of complex structure and poor reliability of mechanical electric-controlled controllers in the prior art, as well as the problem of inconvenient use of pneumatic gas-controlled controllers.

[0013] The technical solution of the present invention is: a split-triggered integrated pneumatic control controller, comprising a shell and an execution control component arranged inside the shell; a control interface, a vacuum interface, an air interface and an output interface are arranged on the outer wall of the shell; the execution control component includes an upper valve core component, a middle valve core component and a lower valve core component, which realize intermittent communication of the output interface with the vacuum interface and the air interface through changes in the air pressure of the control interface.

[0014] Preferably, the shell is provided with an installation chamber for the upper valve core assembly, the middle valve core assembly and the lower valve core assembly to be installed and move in coordination from top to bottom, and the internal side is provided with an air flow channel, a vacuum flow channel A and a vacuum flow channel B which are connected to the installation chamber; the control interface is connected to the upper end of the installation chamber, the vacuum interface is connected to the vacuum flow channel A and the vacuum flow channel B, the air interface is connected to the air flow channel, and the output interface is connected to the lower end of the installation chamber.

[0015] Preferably, the installation chamber includes a first cavity, a second cavity, a third cavity and a fourth cavity arranged in sequence from top to bottom; a first inner hole is arranged at the upper end of the first cavity, a second inner hole is arranged between the first cavity and the second cavity, a third inner hole is arranged between the second cavity and the third cavity, and a fourth inner hole is arranged between the third cavity and the fourth cavity; the upper valve core assembly is arranged in the first inner hole and the first cavity, including an upper valve stem and a pressure plate arranged in an integrated structure, and a first return spring arranged below the pressure plate; the upper valve stem is plugged into the first inner hole, the pressure plate is arranged in the first cavity, and the first cavity is divided into a first upper chamber and a first lower chamber; the middle valve core assembly includes a middle valve stem and a second return spring, the middle valve stem is inserted into the first inner hole, the pressure plate is arranged in the first cavity, and the first cavity is divided into a first upper chamber and a first lower chamber; the middle valve core assembly includes a middle valve stem and a second return spring, the middle valve stem is inserted into the first inner hole, and the pressure plate is arranged in the first cavity. The lower valve core assembly comprises a lower valve stem, a corrugated diaphragm fixed to the upper end of the lower valve stem and a third return spring; the lower valve stem passes through the third inner hole, and the upper and lower ends extend to the second cavity and the third cavity respectively, and the lower end realizes the opening and closing of the fourth inner hole by movement; the corrugated diaphragm is arranged in the second cavity and divides the second cavity into a second upper chamber and a second lower chamber; the air flow channel is connected with the first upper chamber, the first lower chamber and the fourth cavity; the vacuum flow channel A connects the vacuum interface with the second lower chamber, and the vacuum flow channel B connects the second lower chamber and the side wall of the second inner hole; the control interface is connected with the first inner hole, and the output interface is connected with the third cavity.

[0016] Preferably, a notch A is provided on the side wall of the upper end portion of the middle valve stem for realizing communication between the first lower chamber and the second upper chamber when the middle valve stem moves to align with the second inner hole, and a vent hole is provided at the lower end portion for realizing communication between the second upper chamber and the vacuum flow channel B when the middle valve stem moves to align with the side wall of the second inner hole; and a notch B is provided on the side wall of the lower valve stem for realizing communication between the second lower chamber and the third cavity when the middle valve stem moves to align with the third inner hole.

[0017] Preferably, the first cavity, the second cavity, the third cavity, the first inner hole, the second inner hole, the third inner hole, the fourth inner hole, the upper valve core assembly, the middle valve core assembly and the lower valve core assembly are all coaxially arranged, the upper end of the second upper chamber is provided with a guide inner strip plate, and the upper end of the lower valve stem is provided with a guide outer strip plate that cooperates with the guide inner strip plate sleeve and can realize coaxial relative movement.

[0018] Preferably, the control interface is arranged on the side wall of the upper end of the shell, the vacuum interface, the air interface and the output interface are all arranged on the lower end surface of the shell, and two output interfaces are arranged in total.

[0019] Preferably, a needle valve assembly for controlling the gas flow rate is horizontally arranged at one end of the vacuum flow channel B that is biased toward the second lower chamber.

[0020] Preferably, the first return spring and the second return spring are both located in the first lower chamber, and are used to respectively realize upward return of the first valve stem and the second valve stem; the third return spring is located in the second lower chamber, and is used to realize upward return of the third valve stem.

[0021] Preferably, sealing components are provided between the upper valve stem and the first inner hole, between the middle valve stem and the second inner hole, between the lower valve stem and the third inner hole, and in the fourth inner hole for cooperating with the lower end of the lower valve stem to achieve sealing.

[0022] Preferably, the sealing assembly includes an annular sealing ring arranged between the upper valve stem and the first inner hole, a lip sealing ring arranged between the middle valve stem and the second inner hole, an O-ring arranged between the lower valve stem and the third inner hole, and a rubber plug arranged in the fourth inner hole.

[0023] Compared with the prior art, the advantages of the present invention are:

[0024] (1) The present invention uses a split-type air-controlled button connected to the control interface for triggering. At the same time, the air-controlled controller involved is an integrated structure with fewer parts and higher reliability. The air pressure change at the control interface is controlled to achieve axial movement of the execution control component, thereby controlling the output interface to be intermittently connected to the vacuum interface and the air interface, that is, controlling the output interface to intermittently allow air to enter or form a vacuum.

[0025] (2) The single pneumatic controller involved in the present invention has two output interfaces, so it can be connected to two control components (such as a vacuum drain valve, a pneumatic water valve, etc.) at the same time and control them, making it more functional.

[0026] (3) The gas control controller does not require the use of electrical power sources, such as battery packs, solar panels, cables and transformers, etc., and can achieve control directly through the change of air pressure at the control interface, and the overall structure has low energy consumption.

[0027] (4) A needle valve assembly is used to realize the delayed flushing adjustment function. Compared with the traditional valve core damping structure, the damping adjustment must be disassembled and then assembled to achieve adjustment. The present invention can be adjusted directly through the needle valve assembly without disassembly, which is more convenient to use.

[0028] (5) The sealing of the overall structure is achieved through a sealing assembly, that is, the upper valve stem and the first inner hole are sealed by an annular sealing ring, the middle valve stem and the second inner hole are sealed by a lip sealing ring, the lower valve stem and the third inner hole are sealed by an O-ring, and the fourth inner hole is opened and closed by the lower end of the lower valve stem and the rubber plug, so that the overall structural design is more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0030] Figure 1 It is a structural schematic diagram of a split-type triggered integrated gas control controller according to the present invention;

[0031] Figure 2 A bottom view of a split-type triggered integrated gas-controlled controller according to the present invention;

[0032] Figure 3 A top view of a split-type triggered integrated gas control controller according to the present invention;

[0033] Figure 4 It is an AA cross-sectional view of a split-type triggered integrated gas control controller according to the present invention;

[0034] Figure 5 is a cross-sectional view of the housing of the present invention;

[0035] Figure 6 It is a 1 / 4 cross-sectional structural diagram of a split-type triggered integrated gas-controlled controller according to the present invention;

[0036] Figure 7 It is a structural schematic diagram of the execution control component of the present invention;

[0037] Figure 8 It is a BB cross-sectional view of a split-type triggered integrated gas control controller according to the present invention;

[0038] Fig. 9 It is an enlarged BB cross-sectional view of a split-type triggered integrated gas control controller according to the present invention;

[0039] Fig.10 It is a partial cross-sectional structural diagram of the lower shell of the present invention;

[0040] Fig.11 It is a partial enlarged view of the vacuum flow channel B and the vent hole of the present invention;

[0041] Fig.12 is a cross-sectional view of the middle valve stem of the present invention;

[0042] Fig.13 It is a structural schematic diagram of the lower valve stem of the present invention;

[0043] Fig.14 It is a cross-sectional view of a split-type triggered integrated gas-controlled controller in a non-working state according to the present invention;

[0044] Fig.15 It is a circuit diagram of the internal air circulation of a split-type triggered integrated air control controller in a non-working state according to the present invention;

[0045] Fig.16 It is a vacuum flow circuit diagram when the output interface of the split-type triggered integrated gas control controller described in the present invention is connected with the vacuum interface in the working state;

[0046] Fig.17 The present invention is a vacuum flow circuit diagram of the split-type triggered integrated gas control controller in the working state during the lower valve stem resetting process.

[0047] Wherein: 1. Shell;

[0048] 11. upper shell, 12. first middle shell, 13. second middle shell, 14. lower shell, 15. control interface, 16. vacuum interface, 17. air interface, 18. output interface;

[0049] 161, vacuum flow channel A, 162, vacuum flow channel B;

[0050] 2. Install the chamber;

[0051] 21. first cavity, 22. second cavity, 23. third cavity, 24. fourth cavity, 25. first inner hole, 26. second inner hole, 27. third inner hole, 28. fourth inner hole, 29. air flow channel;

[0052] 211, first upper chamber, 212, first lower chamber;

[0053] 221, second upper chamber, 222, second lower chamber;

[0054] 3. Execution control component;

[0055] 31. Upper valve core assembly;

[0056] 311, upper valve stem, 312, pressure plate, 313, first return spring;

[0057] 321, middle valve stem, 322, second return spring, 323, notch A, 324, vent hole;

[0058] 331, lower valve stem, 332, corrugated diaphragm, 333, third return spring, 334, notch B;

[0059] 4. Sealing components;

[0060] 41. annular sealing ring, 42. lip sealing ring, 43. o-ring, 44. rubber plug;

[0061] 5. Needle valve assembly. DETAILED DESCRIPTION

[0062] The present invention is further described in detail below in conjunction with specific embodiments:

[0063] like Figure 1-4 As shown, a split-type triggered integrated pneumatic control controller includes a shell 1 and an execution control component 3 arranged inside the shell 1; a control interface 15, a vacuum interface 16, an air interface 17 and an output interface 18 are arranged on the outer wall of the shell 1; the execution control component 3 includes an upper valve core component 31, a middle valve core component 32 and a lower valve core component 33, which realize intermittent communication between the output interface 18 and the vacuum interface 16 and the air interface 17 through the air pressure change of the control interface 15.

[0064] More specifically, combined Figure 1-4 As shown, the shell 1 is a columnar structure. To facilitate the processing of the internal chamber, it includes an upper shell 11, a first middle shell 12, a second middle shell 13 and a lower shell 14 arranged in sequence from top to bottom. The upper shell 11, the first middle shell 12, the second middle shell 13 and the lower shell 14 are coaxially fixedly connected by long rod screws, and an installation chamber 2 is formed inside for the upper valve core assembly 31, the middle valve core assembly 32 and the lower valve core assembly 33 to be installed and moved from top to bottom. The internal side is provided with an air flow channel 29, a vacuum flow channel A161 and a vacuum flow channel B162 connected to the installation chamber 2; as shown Figure 5 As shown, the installation chamber 2 includes a first cavity 21, a second cavity 22, a third cavity 23 and a fourth cavity 24 which are arranged in sequence from top to bottom; a first inner hole 25 is arranged at the upper end of the first cavity 21, a second inner hole 26 is arranged between the first cavity 21 and the second cavity 22, a third inner hole 27 is arranged between the second cavity 22 and the third cavity 23, and a fourth inner hole 28 is arranged between the third cavity 23 and the fourth cavity 24.

[0065] Combination Figure 4 , Figure 6 , Figure 7As shown, the upper valve core assembly 31 is arranged in the first inner hole 25 and the first cavity 21, including an upper valve stem 311 and a pressure plate 312 arranged in an integral structure, and a first return spring 313 arranged below the pressure plate 312; the upper valve stem 311 is plugged into the first inner hole 25, and the pressure plate 312 is arranged in the first cavity 21, and the first cavity 21 is divided into a first upper chamber 211 and a first lower chamber 212; the middle valve core assembly 32 includes a middle valve stem 321 and a second return spring 322, and the middle valve stem 321 is plugged into the second inner hole 26 The lower valve core assembly 33 includes a lower valve stem 331, a corrugated diaphragm 332 fixed to the upper end of the lower valve stem 331, and a third return spring 333; the lower valve stem 331 passes through the third inner hole 27, and the upper and lower ends extend to the second cavity 22 and the third cavity 23 respectively, and the lower end realizes the opening and closing of the fourth inner hole 28 by movement; the corrugated diaphragm 332 is arranged in the second cavity 22, and divides the second cavity 22 into a second upper chamber 221 and a second lower chamber 222.

[0066] The details of the connection between the interface on the outside of the housing 1 and the internal chamber are as follows:

[0067] Combination Figure 1 , Figure 2 As shown, the control interface 15 is arranged at the side wall of the upper end of the shell 1, the vacuum interface 16, the air interface 17 and the output interface 18 are all arranged on the lower end surface of the shell 1, and there are two output interfaces 18, so that two control components (such as: vacuum drain valve, pneumatic water valve, etc.) can be connected at the same time and controlled, so that the functionality is stronger; the control interface 15 is connected to the upper end of the installation chamber 2, and the control interface 15 is connected to the first inner hole 25; as shown Figure 5 As shown, the air interface 17 is connected to the air channel 29, and the air channel 29 is connected to the first upper chamber 211, the first lower chamber 212 and the fourth cavity 24; the vacuum interface 16 is connected to the vacuum channel A161 and the vacuum channel B162, as shown in FIG. Figure 8 , Fig. 9 As shown, the vacuum channel A161 is arranged on the inner side of the second middle shell 13 and the lower shell 14, as shown in FIG. Fig.10 As shown, the lower end of the vacuum channel A161 is connected to the vacuum interface 16, and the upper end is connected to the second lower chamber 222; Fig.11 As shown, the vacuum flow channel B162 is arranged on the inner side of the first middle shell 12 and the second middle shell 13, the lower end is connected to the second lower chamber 222, the upper end is connected to the side wall of the second inner hole 26, and the lower end is biased toward the second lower chamber 222. The needle valve assembly 5 for controlling the gas flow rate is arranged in the horizontal direction; the output interface 18 is connected to the lower end of the installation chamber 2, that is, connected to the third cavity 23; further, as Fig.12As shown, a notch A323 is provided on the side wall of the upper end of the middle valve stem 321 for realizing the connection between the first lower chamber 212 and the second upper chamber 221 when the middle valve stem 321 moves to align with the second inner hole 26, and a vent hole 324 is provided on the lower end for realizing the connection between the second upper chamber 221 and the vacuum flow channel B162 when the middle valve stem 321 moves to align with the side wall of the second inner hole 26. When the middle valve stem 321 is in the reset state, the vacuum flow channel B162 is connected to the vent hole 324; Fig.13 As shown, a notch B334 is provided on the side wall of the lower valve stem 331 for realizing the communication between the second lower chamber 222 and the third cavity 23 when the lower valve stem 331 moves to align with the third inner hole 27 .

[0068] The first cavity 21, the second cavity 22, the third cavity 23, the first inner hole 25, the second inner hole 26, the third inner hole 27, the fourth inner hole 28, the upper valve core assembly 31, the middle valve core assembly 32 and the lower valve core assembly 33 are all coaxially arranged, the upper end of the second upper chamber 221 is provided with a guide inner strip plate, and the upper end of the lower valve stem 331 is provided with a guide outer strip plate that cooperates with the guide inner strip plate sleeve and can realize coaxial relative movement; the first return spring 313 and the second return spring 322 are both located in the first lower chamber 212, and are respectively used to realize the upward reset of the first valve stem and the second valve stem; the third return spring 333 is located in the second lower chamber 222, and is used to realize the upward reset of the third valve stem.

[0069] like Figure 8 As shown, in order to ensure the sealing performance of the structure, a sealing assembly 4 is provided between the upper valve stem 311 and the first inner hole 25, between the middle valve stem 321 and the second inner hole 26, between the lower valve stem 331 and the third inner hole 27, and in the fourth inner hole 28 for cooperating with the lower end of the lower valve stem 331 to achieve sealing; the sealing assembly 4 includes an annular sealing ring 41 arranged between the upper valve stem 311 and the first inner hole 25, a lip sealing ring 42 arranged between the middle valve stem 321 and the second inner hole 26, an O-ring 43 arranged between the lower valve stem 331 and the third inner hole 27, and a rubber plug 44 arranged in the fourth inner hole 28.

[0070] When the present invention is used, the control interface 15 is used to connect with the air control button, so as to control the change of the air pressure between the air control interface and the first inner hole 25. The specific working state and working principle under different working states are as follows:

[0071] (1) In the non-working state, the gas control button connected to the control interface 15 is in a non-pressed state;

[0072] The air interface 17 is connected to the first upper chamber 211 and the first lower chamber 212 through the air flow channel 29. Fig.14As shown, the upper valve stem 311 rises and resets to the highest point under the action of the first reset spring 313, and the middle valve stem 321 rises and resets to the highest point under the action of the second reset spring 322. At the same time, under the action of the lip seal ring 42, the first lower chamber 212 is not connected to the second upper chamber 221, so the air in the first lower chamber 212 cannot enter the second upper chamber 221; at the same time, the lower valve stem 331 rises and resets to the top under the action of the third reset spring 333, and the lower end of the lower valve stem 331 is separated from the rubber plug 44, and then the third cavity 23 connected to the output interface 18 is connected to the fourth cavity 24 through the fourth inner hole 28, and then connected to the air interface 17, and finally the output interface 18 can let air in; Fig.15 As shown, the dotted line in the figure is a specific air circulation route.

[0073] (2) In the working state, the gas control button is pressed to the bottom;

[0074] After the air control button is pressed, the air pressure in the first inner hole 25 connected to the control interface 15 increases, thereby overcoming the spring force of the first return spring 313 and the second return spring 322, and realizing the downward movement of the upper valve stem 311 and the middle valve stem 321; after the lower end of the middle valve stem 321 contacts the upper end of the lower valve stem 331, the air pressure in the first inner hole 25 continues to overcome the spring force of the first return spring 313, the second return spring 322 and the third return spring 333, and the upper valve stem 311, the middle valve stem 321 and the lower valve stem 331 all descend to the bottom; when the lower valve stem 331 is at the bottom, the lower end of the lower valve stem 331 blocks the rubber plug 44, thereby disconnecting the connection between the air interface 17 and the third cavity 23.

[0075] At the same time, since a notch B334 is provided on the side wall of the lower valve stem 331, the notch B334 is aligned with the third inner hole 27 when the lower valve stem 331 moves to the bottom, and is not aligned with the third inner hole 27 when the lower valve stem 331 is at the upper end, the notch B334 enables the second lower chamber 222 to communicate with the third cavity 23; furthermore, Fig.16 As shown, the vacuum interface 16 is connected to the second lower chamber 222, so that the output interface 18 connected to the third cavity 23 is connected to the vacuum interface 16. A more detailed connection circuit diagram can be combined with Fig. 9 , Fig.10 As shown by the dotted line in the figure, point M in the figure is the same position, and at this time, a vacuum is formed at the output interface 18.

[0076] (3) In the working state, the upper valve stem 311 rebounds quickly to the initial state, and the middle valve stem 321 slowly rises and resets. At this time, the rising and resetting speed of the middle valve stem 321 is faster than the rising and resetting speed of the lower valve stem 331;

[0077] When the air control button is pressed and the hand is released, the upper valve stem 311 quickly rebounds to the initial state under the action of the first return spring 313, and the middle valve stem 321 slowly rises and resets under the action of the second return spring 322. The performance requirement between the first return spring 313 and the second return spring 322 is that the rising speed of the middle valve stem 321 is faster than the rising and resetting speed of the lower valve stem 331, especially when the lower valve stem 331 has not yet completely reset and risen, the middle valve stem 321 has already reset; during the process of the middle valve stem 321 resetting and rising The air interface 17 is connected with the first upper chamber 211 and the first lower chamber 212 through the air flow channel 29. In the process of the middle valve stem 321 rising and returning to the highest point from the lowest point under the action of the second return spring 322, the notch A323 on the side wall of the middle valve stem 321 is always opposite to the second inner hole 26, thereby ensuring that the first lower chamber 212 is connected with the second upper chamber 221, and then the air inside the first lower chamber 212 enters the second upper chamber 221, so that the second upper chamber 221 is maintained at atmospheric pressure.

[0078] At the same time, in the process of the middle valve stem 321 moving down to the bottom, and in the process of rising and resetting from the bottom under the action of the second return spring 322, the upper end of the vacuum flow channel B162 is offset from the vent hole 324 inside the middle valve stem 321 to achieve closure; thereby ensuring that the air pressure in the second upper chamber 221 changes from the negative pressure in the non-working state to atmospheric pressure; as the middle valve stem 321 continues to rise, the notch A323 on the side wall of the middle valve stem 321 leaves the mating position of the lip sealing ring 42, ultimately ensuring that the air in the first lower chamber 212 will not enter the second upper chamber 221.

[0079] (4) In the working state, the upper valve stem 311 and the middle valve stem 321 are lifted and reset under the action of the first return spring 313 and the second return spring 322;

[0080] As the middle valve stem 321 continues to rise, after the middle valve stem 321 rises to the top, a pressure difference is generated between the air above the corrugated diaphragm 332 and the vacuum below. The pressure difference acts on the corrugated diaphragm 332 to generate downward pressure (pressure direction downward), which overcomes the reset pressure of the third reset spring 333 (pressure direction upward), causing the lower valve stem 331 to remain stationary.

[0081] At the same time, when the valve stem 321 rises to the top, Fig.17As shown, the vacuum channel B162 is connected to the vent hole 324, and the needle valve assembly 5 starts to work at this time. Since the vacuum channel B162 connects the second upper chamber 221 and the second lower chamber 222, and both are connected to the vacuum interface 16, the only difference is that it takes time for the air pressure inside the second upper chamber 221 to drop from atmospheric pressure to negative pressure, and this time is adjusted and controlled by the needle valve assembly 5; by manually adjusting the needle valve assembly 5, the reset speed of the lower valve stem 331 can be controlled, thereby realizing the delayed closing function of the air control controller.

[0082] More importantly, without affecting the operation of the air-controlled controller, especially without disassembling the air-controlled controller, the needle valve assembly 5 can be adjusted anytime and anywhere to control the delay time, instead of the known technology that requires disassembling the controller and replacing related parts to realize the controller delay adjustment control function. Therefore, the adjustment efficiency is high, the labor cost is low, the labor intensity is low, and the degree of humanization is high.

[0083] (5) The working state is restored to the initial state, and the lower valve stem 331 is lifted and reset under the action of the third return spring 333;

[0084] Due to the throttling speed regulating effect of the needle valve assembly 5, the corrugated diaphragm 332 is subjected to a certain pressure difference. The spring force of the third reset spring 333 overcomes the pressure generated by the pressure difference of the lower valve core assembly 33, and begins to reset and rise. As the pressure difference on both sides of the corrugated diaphragm 332 gradually decreases, the rising speed of the lower valve stem 331 gradually decreases until it reaches zero; when the lower valve stem 331 is completely reset, the connection between the output interface 18 and the vacuum interface 16 is disconnected, and at this time, the output interface 18 is connected to the air interface 17.

[0085] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the scope of protection of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A split-type triggered integrated gas control controller, characterized in that: It comprises a shell, and an execution control assembly arranged inside the shell; a control interface, a vacuum interface, an air interface and an output interface are arranged on the outer wall of the shell; the execution control assembly comprises an upper valve core assembly, a middle valve core assembly and a lower valve core assembly, which realize intermittent communication of the output interface with the vacuum interface and the air interface through the air pressure change of the control interface; the control interface is arranged on the side wall of the upper end of the shell, the vacuum interface, the air interface and the output interface are all arranged on the lower end surface of the shell, and two output interfaces are arranged in total; The housing is provided with an installation chamber for the upper valve core assembly, the middle valve core assembly and the lower valve core assembly to be installed and move in coordination from top to bottom, and the internal side is provided with an air flow channel, a vacuum flow channel A and a vacuum flow channel B connected to the installation chamber; the control interface is connected to the upper end of the installation chamber, the vacuum interface is connected to the vacuum flow channel A and the vacuum flow channel B, the air interface is connected to the air flow channel, and the output interface is connected to the lower end of the installation chamber; The installation chamber includes a first cavity, a second cavity, a third cavity and a fourth cavity arranged in sequence from top to bottom; a first inner hole is arranged at the upper end of the first cavity, a second inner hole is arranged between the first cavity and the second cavity, a third inner hole is arranged between the second cavity and the third cavity, and a fourth inner hole is arranged between the third cavity and the fourth cavity; the upper valve core assembly is arranged in the first inner hole and the first cavity, including an upper valve stem and a pressure plate arranged in an integrated structure, and a first return spring arranged below the pressure plate; the upper valve stem is plugged into the first inner hole, the pressure plate is arranged in the first cavity, and the first cavity is divided into a first upper chamber and a first lower chamber; the middle valve core assembly includes a middle valve stem and a second return spring, the middle valve stem is plugged into the second inner hole, and the upper and lower ends extend to the first cavity and in the second cavity; the lower valve core assembly includes a lower valve stem, a corrugated diaphragm fixed on the upper end of the lower valve stem and a third return spring; the lower valve stem passes through the third inner hole, and the upper and lower ends extend to the second cavity and the third cavity respectively, and the lower end realizes the opening and closing of the fourth inner hole by movement; the corrugated diaphragm is arranged in the second cavity, and divides the second cavity into a second upper chamber and a second lower chamber; the air flow channel is connected with the first upper chamber, the first lower chamber and the fourth cavity; the vacuum flow channel A connects the vacuum interface with the second lower chamber, and the vacuum flow channel B connects the second lower chamber and the side wall of the second inner hole; a needle valve assembly for controlling the gas flow rate is arranged in the horizontal direction at one end of the vacuum flow channel B that is biased towards the second lower chamber; the control interface is connected with the first inner hole, and the output interface is connected with the third cavity.

2. The split-type triggered integrated gas control controller according to claim 1, characterized in that: A notch A is provided on the side wall of the upper end of the middle valve stem for connecting the first lower chamber with the second upper chamber when the middle valve stem moves to align with the second inner hole, and a vent hole is provided at the lower end for connecting the second upper chamber with the vacuum flow channel B when the middle valve stem moves to align with the side wall of the second inner hole; a notch B is provided on the side wall of the lower valve stem for connecting the second lower chamber with the third cavity when the middle valve stem moves to align with the third inner hole.

3. The split-type triggered integrated gas control controller according to claim 2, characterized in that: The first cavity, the second cavity, the third cavity, the first inner hole, the second inner hole, the third inner hole, the fourth inner hole, the upper valve core assembly, the middle valve core assembly and the lower valve core assembly are all coaxially arranged, the upper end of the second upper chamber is provided with a guide inner strip plate, and the upper end of the lower valve stem is provided with a guide outer strip plate that cooperates with the guide inner strip plate sleeve and can realize coaxial relative movement.

4. The split-type triggered integrated gas control controller according to claim 3, characterized in that: The first return spring and the second return spring are both located in the first lower chamber, and are used to respectively realize the upward return of the first valve stem and the second valve stem; the third return spring is located in the second lower chamber, and is used to realize the upward return of the third valve stem.

5. The split-type triggered integrated gas control controller according to claim 3, characterized in that: Sealing components are provided between the upper valve stem and the first inner hole, between the middle valve stem and the second inner hole, between the lower valve stem and the third inner hole, and in the fourth inner hole for cooperating with the lower end of the lower valve stem to achieve sealing.

6. The split-type triggered integrated gas control controller according to claim 5, characterized in that: The sealing assembly includes an annular sealing ring arranged between the upper valve stem and the first inner hole, a lip sealing ring arranged between the middle valve stem and the second inner hole, an O-ring arranged between the lower valve stem and the third inner hole, and a rubber plug arranged in the fourth inner hole.

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