Vacuum valve

Abstract

The utility model is applicable to the technical field of electromagnetic valves, and provides a vacuum valve, which comprises an electromagnetic component, a valve body component, a valve core component and a valve core component, the valve body assembly comprises a valve body shell and a cylinder body; the vacuum assembly is installed on the cylinder body, and the vacuum assembly comprises a vacuum element and a shaft core. According to the vacuum valve, the electromagnetic assembly is arranged and used for controlling the valve deck on the valve body assembly to be opened or closed, and the vacuum degree of airflow entering the first valve deck from the airflow inlet channel through the vacuum generation port is maintained through the vacuum element; the vacuum degree in the whole valve body assembly is maintained through the vacuum element, when the electromagnetic assembly controls the second valve cover to be opened, the shaft core adjusts the flow of vacuum breaking fluid, so that airflow flows to the second flow channel from the vacuum breaking port, the rapid vacuum breaking state is achieved, vacuum breaking is conducted in time, and the problems that vacuum breaking is not timely enough, and the service life is long are solved. And the safety or efficiency of the system is influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electromagnetic valves, in particular to a vacuum valve. Background Art

[0002] A vacuum valve is a valve specially designed for use in a vacuum system. Its main function is to control and regulate the flow of gas in the system, and to achieve precise control of parameters such as vacuum degree, flow rate and pressure. There are various types of vacuum valves, and their application fields are also very wide, mainly including: semiconductor production, solar panel production, display production, lighting production, scientific instruments, thin film coating, industrial applications, medical and pharmaceutical applications, vacuum system core components, etc.

[0003] In many technical fields, vacuum equipment needs to be quickly broken to release the vacuum state. In order to prevent equipment damage, avoid negative pressure effects, protect pipelines and containers, ensure system balance, avoid vacuum adsorption, release safely, and prevent vacuum pump overload, vacuum valves are required to break the vacuum in time. Breaking the vacuum is an important aspect in the design and operation of vacuum systems. Proper management of vacuum and vacuum breaking processes is essential to ensure the safety, reliability and efficiency of the system.

[0004] In the prior art, a common way for a vacuum valve to break a vacuum is to break the vacuum automatically. The automatic vacuum breaking function is usually implemented based on the working principle of pressure difference. When a container or pipeline generates negative pressure or vacuum due to system operation or stop, and the pressure inside the system drops to below the external atmospheric pressure, the pressure difference is sensed by the vacuum valve, and the vacuum breaker opens automatically to destroy the vacuum effect, allowing the external atmospheric pressure to enter through the valve and destroy the vacuum state, thereby preventing equipment damage caused by negative pressure. However, the vacuum valve does not react quickly enough to system pressure changes, resulting in untimely vacuum destruction, which affects system safety or efficiency. Utility Model Content

[0005] The purpose of the embodiment of the utility model is to provide a vacuum valve, which aims to solve the problem that the automatic vacuum breaking function is usually realized based on the working principle of pressure difference. When the container or pipeline generates negative pressure or vacuum due to the operation or stop of the system and gradually increases, the pressure inside the system drops to below the external atmospheric pressure. This pressure difference is sensed by the vacuum valve, and the vacuum breaker will automatically open to destroy the vacuum effect, and allow the external atmospheric pressure to enter through the valve and destroy the vacuum state, thereby preventing equipment damage caused by negative pressure. However, the vacuum valve does not react quickly enough when the system pressure changes, resulting in insufficient vacuum destruction, which affects the safety or efficiency of the system.

[0006] The utility model is implemented in this way: a vacuum valve, the vacuum valve comprising:

[0007] An electromagnetic assembly, the electromagnetic assembly is installed on the valve body assembly, and the electromagnetic assembly is used to control the opening or closing of the valve cover in the valve body assembly;

[0008] A valve body assembly, the valve body assembly comprises a valve body shell and a cylinder body, the valve body shell is mounted on the cylinder body, the valve body shell is provided with a vacuum generating port and a vacuum breaking port, the vacuum generating port is provided with a first valve cover, and the vacuum breaking port is provided with a second valve cover; the cylinder body is provided with an intake flow channel, a first flow channel and a second flow channel, the first flow channel is connected to the vacuum generating port, and the second flow channel is connected to the vacuum breaking port;

[0009] A vacuum assembly is installed on the cylinder body. The vacuum assembly includes a vacuum element and a shaft core. The vacuum element is used to maintain the vacuum degree of the airflow from the intake air passage through the vacuum generating port to the first valve cover. The shaft core is installed on the connecting port of the cylinder body and is connected to the second flow passage. The shaft core is used to adjust the fluid flow rate of breaking the vacuum.

[0010] Preferably, the electromagnetic assembly includes a shell, a first coil component and a second coil component. The shell is installed above the valve body shell of the valve body assembly through a fixing part. A cavity structure is formed inside the shell. The first coil component and the second coil component are installed side by side in the cavity structure of the shell. The first coil component is used to control the opening or closing of the first valve cover, and the second coil component is used to control the opening or closing of the second valve cover.

[0011] Preferably, the valve body shell is a semi-closed shell, and the valve body shell is also provided with a first mounting hole and a mounting groove, the first mounting hole is used to install the fixing part of the upper shell of the electromagnetic assembly, the mounting groove is used to install the connecting end of the first valve cover and the connecting end of the second valve cover, the vacuum generating port is arranged on the bottom surface of the inner wall of the mounting groove and is located below the first valve cover, the vacuum generating port is provided with a first connecting port and a second connecting port, the first connecting port is connected with the intake air flow channel of the cylinder body to facilitate the air flow into the cylinder body, the second connecting port is connected with the first flow channel so as to be connected with the vacuum element, and the vacuum breaking port is arranged on the bottom surface of the inner wall of the mounting groove and is located below the second valve cover.

[0012] Preferably, the cylinder body is configured as an irregular shell, and the cylinder body is also provided with a second mounting hole, the second mounting hole is located on the top surface of the cylinder body, and the second mounting hole is used to install the fixing part of the upper shell of the electromagnetic assembly; the intake air flow channel is provided with a third connecting port and a fourth connecting port, a U-shaped flow channel is formed between the third connecting port and the fourth connecting port, and the third connecting port and the fourth connecting port are respectively arranged on the top surface of the cylinder body, the third connecting port is connected to the external airflow connecting piece, and the fourth connecting port is communicated with the first connecting port of the valve body outer shell.

[0013] Preferably, the first flow channel includes a fifth connection port and a sixth connection port, an L-shaped flow channel is formed between the fifth connection port and the sixth connection port, and the fifth connection port is arranged on the top surface of the cylinder body, and the sixth connection port is arranged on the side of the cylinder body, the fifth connection port is communicated with the second connection port on the valve body shell, and the sixth connection port is connected to the vacuum element; the second flow channel includes a seventh connection port and an eighth connection port, a strip flow channel is formed between the seventh connection port and the eighth connection port, and the seventh connection port is arranged on the top surface of the cylinder body, the eighth connection port is located at the bottom of the second flow channel, and the eighth connection port is connected to the shaft core; the connection port and the sixth connection port are located on the same side, and the connection port and the seventh connection port are located at the same height to facilitate the rod-shaped shaft core to be installed on the connection port and connected to the seventh connection port.

[0014] Preferably, the cylinder body is also provided with a vacuum flow channel, and the vacuum flow channel is provided with a ninth connection port, a tenth connection port and a vacuum breaking air inlet, the ninth connection port and the tenth connection port are respectively located on two opposite sides of the cylinder body, the tenth connection port and the vacuum port and the sixth connection port are located on the same side, a vacuum breaking air outlet and a vacuum breaking flow channel connected to the first flow channel are provided in the middle part of the vacuum flow channel, the vacuum breaking air outlet is used for the outflow of air flow to quickly break the vacuum, and the vacuum breaking flow channel is used to guide the air flow to flow out from the air outlet so as to adjust the internal vacuum degree.

[0015] Preferably, the vacuum element is provided with a first vacuum component and a second vacuum component, the vacuum component is used to generate a vacuum in the airflow, the first vacuum component is sleeved on one end of the second vacuum component, the first vacuum component is embedded in the first flow channel, and a muffler is provided at the other end of the second vacuum component, the muffler is used to reduce the noise generated by the vacuum component when the vacuum is generated.

[0016] Preferably, the vacuum component further comprises a vacuum pressure gauge, which is installed on the ninth connecting port of the vacuum flow channel and is used to detect the pressure value in the vacuum breaking flow channel.

[0017] The utility model provides a vacuum valve. The utility model is provided with an electromagnetic component, which is used to control the opening or closing of a valve cover on a valve body component. In the valve body component, a first valve cover and a second valve cover are respectively arranged above a vacuum generating port and a vacuum breaking port of a valve body shell. The valve body shell is connected to a cylinder body and is provided with a first flow channel and a second flow channel respectively connected to the vacuum generating port and the vacuum breaking port. A vacuum component is arranged and installed on the cylinder body. A vacuum element is used to maintain the vacuum degree of airflow from an intake flow channel through the vacuum generating port to the first valve cover. When the electromagnetic component controls the first valve cover to open, the vacuum degree in the entire valve body assembly is maintained by the vacuum element. When the electromagnetic component controls the second valve cover to open, the shaft core adjusts the vacuum breaking fluid flow rate so that the airflow flows from the vacuum breaking port to the second flow channel and realizes a rapid vacuum breaking state, and vacuum breaking is performed in time, thereby solving the problem that equipment damage caused by negative pressure occurs but the vacuum valve does not react quickly enough when the system pressure changes, resulting in untimely vacuum breaking and affecting system safety or efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional structural diagram of a vacuum valve provided in an embodiment of the utility model;

[0019] Figure 2 A sectional view of a three-dimensional view of a vacuum valve provided in an embodiment of the utility model.

[0020] In the accompanying drawings: 1, electromagnetic assembly; 11, housing; 12, first coil member; 13, second coil member; 14, fixing member; 2, valve body assembly; 21, valve body housing; 22, cylinder body; 221, inlet channel; 2211, third connection port; 2212, fourth connection port; 222, first flow channel; 2221, fifth connection port; 2222, sixth connection port; 223, second flow channel; 2231, seventh connection port; 2232, eighth connection port; 224, vacuum flow channel; 2241, ninth connection port; 2242, tenth connection port; 2243, vacuum breaking air inlet; 23, vacuum generating port; 231, first connection port; 232, second connection port; 24, vacuum breaking port; 25, first valve cover; 26, second valve cover; 3, vacuum assembly; 31, vacuum element; 311, first vacuum part; 312, second vacuum part; 313, silencer; 32, shaft core; 33, vacuum pressure gauge. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0023] like Figure 1-2 As shown, it is a structural diagram of a vacuum valve provided by an embodiment of the utility model, comprising: an electromagnetic component 1, the electromagnetic component 1 is installed on a valve body component 2, and the electromagnetic component 1 is used to control the valve cover in the valve body component 2 to open or close;

[0024] The valve body assembly 2 comprises a valve body shell 21 and a cylinder body 22. The valve body shell 21 is installed on the cylinder body 22. The valve body shell 21 is provided with a vacuum generating port 23 and a vacuum breaking port 24. A first valve cover 25 is provided on the vacuum generating port 23, and a second valve cover 26 is provided on the vacuum breaking port 24. The cylinder body 22 is provided with an intake flow channel, a first flow channel 222 and a second flow channel 223. The first flow channel 222 is connected to the vacuum generating port 23, and the second flow channel 223 is connected to the vacuum breaking port 24.

[0025] The vacuum assembly 3 is installed on the cylinder body 22. The vacuum assembly 3 includes a vacuum element 31 and a shaft core 32. The vacuum element 31 is used to maintain the vacuum degree of the airflow from the intake flow channel through the vacuum generating port 23 to the first valve cover 25. The shaft core 32 is installed on the connecting port of the cylinder body 22 and is connected to the second flow channel 223. The shaft core 32 is used to adjust the fluid flow rate of breaking the vacuum.

[0026] In the embodiment of the utility model, preferably, the vacuum valve is mainly used to control and regulate the flow of gas, realize the precise control of its vacuum degree, and improve the efficiency of its vacuum breaking to prevent the safety or efficiency of the system from being affected by the untimely vacuum breaking. The vacuum valve is mainly composed of an electromagnetic component 1, a valve body component 2 and a vacuum component 3. The electromagnetic component 1 is installed above the valve body component 2, and the vacuum component 3 is installed on the cylinder body 22 of the valve body component 2. The valve body component 2 is composed of a valve body shell 21 and a cylinder body 22, and the valve body shell 21 is installed above the cylinder body 22 and connected to the electromagnetic component 1. A vacuum generating port 23 is arranged on the valve body shell 21 to be connected to the first flow channel 222 on the cylinder body 22, a vacuum breaking port 24 is arranged to be connected to the second flow channel 223 on the cylinder body 22, and a first valve cover 25 and a second valve cover 25 are respectively arranged. 6 is installed on the vacuum generating port 23 and the vacuum breaking port 24 of the valve body shell 21, and the vacuum component 3 is installed on the side of the cylinder body 22. The vacuum degree of the airflow is maintained by the vacuum element 31, and the shaft core 32 is used to adjust the fluid flow when the vacuum is broken so that the vacuum state can be broken more quickly. When the airflow enters the cylinder body 22 from the air intake channel on the cylinder body 22, the airflow passes through the vacuum generating port 23 and controls the first valve cover 25 to open according to the electromagnetic component 1 so that it enters the first flow channel 222 and its vacuum degree is controlled by the vacuum element 31. When it is required to break the internal vacuum degree, the shaft core 32 is used to adjust the fluid flow of the vacuum breaking and the electromagnetic component 1 is used to control the second valve cover 26 so that the airflow passes through the vacuum breaking port 24 and enters the second flow channel 223 and the pressure difference between the air pressure in the cylinder body 22 and the atmospheric pressure is reduced, so that the vacuum state is broken in time.

[0027] In one embodiment of the utility model, the utility model is provided with an electromagnetic component 1, which is used to control the opening or closing of the valve cover on the valve body component 2. In the valve body component 2, a first valve cover 25 and a second valve cover 26 are respectively provided above the vacuum generating port 23 and the vacuum breaking port 24 of the valve body shell 21. The valve body shell 21 is connected to the cylinder body 22 and is provided with a first flow channel 222 and a second flow channel 223 which are respectively connected to the vacuum generating port 23 and the vacuum breaking port 24. A vacuum component 3 is provided and installed on the cylinder body 22, and a vacuum element 31 is used to maintain the airflow passing through the intake flow channel. The vacuum generating port 23 enters the vacuum degree of the first valve cover 25. When the electromagnetic component 1 controls the first valve cover 25 to open, the vacuum degree in the entire valve body assembly 2 is maintained by the vacuum element 31. When the electromagnetic component 1 controls the second valve cover 26 to open, the shaft core 32 adjusts the vacuum breaking fluid flow rate so that the airflow flows from the vacuum breaking port 24 to the second flow channel 223 and realizes a rapid vacuum breaking state, and performs vacuum breaking in time, thereby solving the problem of equipment damage caused by negative pressure, but the vacuum valve does not react quickly enough when the system pressure changes, resulting in untimely vacuum breaking and affecting system safety or efficiency.

[0028] like Figure 1-2 As shown, as a preferred embodiment of the utility model, the electromagnetic assembly 1 includes a shell 11, a first coil component 12 and a second coil component 13. The shell 11 is installed above the valve body shell 21 of the valve body assembly 2 through a fixing member 14. A cavity structure is formed inside the shell 11. The first coil component 12 and the second coil component 13 are installed side by side in the cavity structure of the shell 11. The first coil component 12 is used to control the opening or closing of the first valve cover 25, and the second coil component 13 is used to control the opening or closing of the second valve cover 26.

[0029] In the embodiment of the utility model, preferably, the electromagnetic assembly 1 is mainly composed of a shell 11, a first coil component 12 and a second coil component 13. The first coil component 12 and the second coil component 13 are installed side by side inside the shell 11 and are used to control the opening or closing of the first valve cover 25 and the second valve cover 26 respectively. Two interfaces can be set on the top of the shell 11 to facilitate the connection of an external power supply to the first coil component 12 and the second coil component 13 so that they can control the opening or closing of the first valve cover 25 and the second valve cover 26. A strip through hole is set on the shell 11 to facilitate the passage of the fixing member 14 and install it on the valve body shell 21.

[0030] like Figure 1-2 As shown, as a preferred embodiment of the utility model, the valve body shell 21 is a semi-closed shell 11, and the valve body shell 21 is also provided with a first mounting hole and a mounting groove, the first mounting hole is used to install the fixing part 14 of the upper shell 11 of the electromagnetic component 1, and the mounting groove is used to install the connecting end of the first valve cover 25 and the connecting end of the second valve cover 26, the vacuum generating port 23 is arranged on the bottom surface of the inner wall of the mounting groove and is located below the first valve cover 25, the vacuum generating port 23 is provided with a first connecting port 231 and a second connecting port 232, the first connecting port 231 is connected to the intake flow channel of the cylinder body 22 to facilitate the air flow into the cylinder body 22, the second connecting port 232 is connected to the first flow channel 222 so as to be connected to the vacuum element 31, and the vacuum breaking port 24 is arranged on the bottom surface of the inner wall of the mounting groove and is located below the second valve cover 26.

[0031] In the embodiment of the utility model, preferably, the valve body shell 21 is mainly provided with a vacuum generating port 23 and a vacuum breaking port 24, and an irregular mounting groove is respectively provided at one end of the port for installing a first valve cover 25 and a second valve cover 26. The connecting ends of the first valve cover 25 and the second valve cover 26 are respectively fixed on the groove wall of the mounting groove. The vacuum generating port can be provided with a first connecting port 231 and a second connecting port 232 to facilitate airflow from the intake air channel through the first connecting port 231. When the first valve cover 25 is opened, the airflow flows to the second connecting port 232. The second connecting port 232 is connected to the first flow channel 222 so that the vacuum element 31 maintains the vacuum degree of the flow channel inside the cylinder body 22; the vacuum breaking port 24 is connected to the second flow channel 223 and is connected to the shaft core 32 so that the shaft core 32 can adjust the fluid flow rate when the vacuum is broken.

[0032] like Figure 1-2 As shown, as a preferred embodiment of the utility model, the cylinder body 22 is configured as an irregular shell 11, and the cylinder body 22 is also provided with a second mounting hole, the second mounting hole is located on the top surface of the cylinder body 22, and the second mounting hole is used to install the fixing part 14 of the upper shell 11 of the electromagnetic component 1; the intake air flow channel is provided with a third connecting port 2211 and a fourth connecting port 2212, and a U-shaped flow channel is formed between the third connecting port 2211 and the fourth connecting port 2212, and the third connecting port 2211 and the fourth connecting port 2212 are respectively arranged on the top surface of the cylinder body 22, the third connecting port 2211 is connected to the external airflow connecting member, and the fourth connecting port 2212 is communicated with the first connecting port 231 of the valve body shell 21.

[0033] In an embodiment of the utility model, preferably, the cylinder body 22 is internally provided with a shell 11 having multiple flow channels, and respectively has an intake flow channel, a first flow channel 222, a second flow channel 223 and a second mounting hole, the second mounting hole is mainly used to connect with the fixing part 14 so that the electromagnetic assembly 1 and the valve body assembly 2 are completely connected, the intake channel is U-shaped and the two ports are respectively the third connection port 2211 and the fourth connection port 2212, the third connection port 2211 can be mainly connected to the airflow connection end to facilitate the entry of airflow, the fourth connection port 2212 is connected to the first connection port 231 of the vacuum generating port 23 on the valve body shell 21 so that the airflow enters the first flow channel 222 from the first valve cover 25.

[0034] like Figure 1-2As shown, as a preferred embodiment of the utility model, the first flow channel 222 includes a fifth connection port 2221 and a sixth connection port 2222, an L-shaped flow channel is formed between the fifth connection port 2221 and the sixth connection port 2222, and the fifth connection port 2221 is arranged on the top surface of the cylinder body 22, and the sixth connection port 2222 is arranged on the side of the cylinder body 22, the fifth connection port 2221 is connected to the second connection port 232 on the valve body shell 21, and the sixth connection port 2222 is connected to the vacuum element 31; the second flow channel 223 includes a seventh connection port The seventh connection port 2231 and the eighth connection port 2232, a strip flow channel is formed between the seventh connection port 2231 and the eighth connection port 2232, and the seventh connection port 2231 is arranged on the top surface of the cylinder body 22, the eighth connection port 2232 is located at the bottom of the second flow channel 223, and the eighth connection port 2232 is connected to the shaft core 32; the vacuum port and the sixth connection port 2222 are located on the same side, and the vacuum port and the seventh connection port 2231 are located at the same height so that the rod-shaped shaft core 32 can be installed in the vacuum port and connected to the seventh connection port 2231.

[0035] In the embodiment of the utility model, preferably, the first flow channel 222 can be L-shaped on the cylinder body 22 and its two ports are respectively the fifth connection port 2221 and the sixth connection port 2222, the fifth connection port 2221 and the third connection port 2211 and the fourth connection port 2212 are located on the same plane, the sixth connection port 2222 is located on the side adjacent to the top surface of the cylinder body 22, the fifth connection port 2221 is connected to the second connection port 232 on the valve body assembly 2, so that the air flow flows to the vacuum element 31 connected to the sixth connection port 2222 to generate a vacuum and the vacuum degree is maintained by the vacuum element 31; the second flow channel 223 is strip-shaped and is provided with a seventh connection port 2231 and an eighth connection port 2232, the eighth connection port 2232 is used to install one end of the shaft core 32 so that the shaft core 32 can adjust the flow rate of the vacuum-breaking fluid on the second flow channel 223, and the vacuum port on the cylinder body 22 is located on the side and is used to position the shaft core 32.

[0036] like Figure 1-2 As shown, as a preferred embodiment of the utility model, the cylinder body 22 is also provided with a vacuum flow channel 224, and the vacuum flow channel 224 is provided with a ninth connection port 2241, a tenth connection port 2242 and a vacuum breaking air inlet 2243. The ninth connection port 2241 and the tenth connection port 2242 are respectively located on two opposite sides of the cylinder body 22, and the tenth connection port 2242 is located on the same side as the vacuum port and the sixth connection port 2222. A vacuum breaking air outlet and a vacuum breaking flow channel 224 connected to the first flow channel 222 are provided in the middle part of the vacuum flow channel 224, and the vacuum breaking air outlet is used for the outflow of air flow to quickly break the vacuum, and the vacuum breaking flow channel 224 is used to guide the air flow to flow out from the air outlet to facilitate the adjustment of the internal vacuum degree.

[0037] In the embodiment of the utility model, preferably, a vacuum flow channel 224 is also provided inside the cylinder body 22, and the two ports of the vacuum flow channel 224 are respectively located on the two side surfaces of the cylinder body 22 and a vacuum breaking air inlet is provided in the middle of the vacuum channel to facilitate the airflow and then the internal channel of the cylinder body 22 to break the vacuum state, and a connecting piece can be provided on the tenth connecting port 2242 to facilitate the entry of atmospheric airflow or the outflow of airflow from the cylinder body 22.

[0038] like Figure 1-2 As shown, as a preferred embodiment of the utility model, the vacuum element 31 is provided with a first vacuum component and a second vacuum component 312, and the vacuum element 31 is used to generate a vacuum in the airflow, the first vacuum component is sleeved on one end of the second vacuum component 312, the first vacuum component is embedded in the first flow channel 222, and a muffler 313 is provided at the other end of the second vacuum component 312, and the muffler 313 is used to reduce the noise generated by the vacuum element 31 when generating a vacuum.

[0039] In an embodiment of the utility model, preferably, the vacuum element 31 is mainly composed of a first vacuum component and a second vacuum component 312, and the first vacuum component is installed on the sixth connecting port 2222 of the first flow channel 222, the second vacuum component 312 is sleeved behind the first vacuum component, and a muffler 313 is arranged at the end port of the second vacuum component 312 to reduce the noise of the vacuum element 31 when generating a vacuum.

[0040] like Figure 1-2 As shown, as a preferred embodiment of the utility model, the vacuum component 3 also includes a vacuum pressure gauge 33, which is installed on the ninth connecting port 2241 of the vacuum channel 224, and is used to detect the pressure value in the vacuum breaking channel 224.

[0041] In the embodiment of the utility model, preferably, a vacuum pressure gauge 33 can also be provided in the vacuum component 3 to constantly detect the vacuum pressure value inside the cylinder body 22 , and the detection end of the vacuum pressure gauge 33 can be installed on the ninth connection port 2241 on the side of the cylinder body 22 .

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vacuum valve, characterized in that: The vacuum valve comprises: An electromagnetic assembly, the electromagnetic assembly is installed on the valve body assembly, and the electromagnetic assembly is used to control the opening or closing of the valve cover in the valve body assembly; A valve body assembly, the valve body assembly comprises a valve body shell and a cylinder body, the valve body shell is mounted on the cylinder body, the valve body shell is provided with a vacuum generating port and a vacuum breaking port, the vacuum generating port is provided with a first valve cover, and the vacuum breaking port is provided with a second valve cover; the cylinder body is provided with an intake flow channel, a first flow channel and a second flow channel, the first flow channel is connected to the vacuum generating port, and the second flow channel is connected to the vacuum breaking port; A vacuum assembly is installed on the cylinder body. The vacuum assembly includes a vacuum element and a shaft core. The vacuum element is used to maintain the vacuum degree of the airflow from the intake air passage through the vacuum generating port to the first valve cover. The shaft core is installed on the connecting port of the cylinder body and is connected to the second flow passage. The shaft core is used to adjust the fluid flow rate of breaking the vacuum.

2. The vacuum valve according to claim 1, characterized in that: The electromagnetic assembly includes a shell, a first coil component and a second coil component. The shell is installed above the valve body shell of the valve body assembly through a fixing part. A cavity structure is formed inside the shell. The first coil component and the second coil component are installed side by side in the cavity structure of the shell. The first coil component is used to control the opening or closing of the first valve cover, and the second coil component is used to control the opening or closing of the second valve cover.

3. The vacuum valve according to claim 1, characterized in that: The valve body shell is a semi-closed shell, and the valve body shell is also provided with a first mounting hole and a mounting groove, the first mounting hole is used to install the fixing part of the upper shell of the electromagnetic component, the mounting groove is used to install the connecting end of the first valve cover and the connecting end of the second valve cover, the vacuum generating port is arranged on the bottom surface of the inner wall of the mounting groove and is located below the first valve cover, the vacuum generating port is provided with a first connecting port and a second connecting port, the first connecting port is connected with the intake air flow channel of the cylinder body to facilitate the air flow into the cylinder body, the second connecting port is connected with the first flow channel to connect with the vacuum element, and the vacuum breaking port is arranged on the bottom surface of the inner wall of the mounting groove and is located below the second valve cover.

4. The vacuum valve according to claim 3, characterized in that: The cylinder body is configured as an irregular shell, and a second mounting hole is also configured on the cylinder body, and the second mounting hole is located on the top surface of the cylinder body, and the second mounting hole is used to install the fixing part of the upper shell of the electromagnetic component; the intake air flow channel is configured with a third connecting port and a fourth connecting port, and a U-shaped flow channel is formed between the third connecting port and the fourth connecting port, and the third connecting port and the fourth connecting port are respectively configured on the top surface of the cylinder body, the third connecting port is connected to an external airflow connecting piece, and the fourth connecting port is communicated with the first connecting port of the valve body outer shell.

5. The vacuum valve according to claim 4, characterized in that: The first flow channel includes a fifth connection port and a sixth connection port, an L-shaped flow channel is formed between the fifth connection port and the sixth connection port, and the fifth connection port is arranged on the top surface of the cylinder body, and the sixth connection port is arranged on the side of the cylinder body, the fifth connection port is communicated with the second connection port on the valve body shell, and the sixth connection port is connected to the vacuum element; the second flow channel includes a seventh connection port and an eighth connection port, a strip flow channel is formed between the seventh connection port and the eighth connection port, and the seventh connection port is arranged on the top surface of the cylinder body, the eighth connection port is located at the bottom of the second flow channel, and the eighth connection port is connected to the shaft core; the connection port and the sixth connection port are located on the same side, and the connection port and the seventh connection port are located at the same height so that the rod-shaped shaft core can be installed on the connection port and connected to the seventh connection port.

6. The vacuum valve according to claim 5, characterized in that: The cylinder body is also provided with a vacuum flow channel, and the vacuum flow channel is provided with a ninth connection port, a tenth connection port and a vacuum breaking air inlet port, the ninth connection port and the tenth connection port are respectively located on two opposite sides of the cylinder body, the tenth connection port and the vacuum port and the sixth connection port are located on the same side, a vacuum breaking air outlet and a vacuum breaking flow channel connected to the first flow channel are provided in the middle part of the vacuum flow channel, the vacuum breaking air outlet is used for the outflow of air flow to quickly break the vacuum, and the vacuum breaking flow channel is used to guide the air flow to flow out from the air outlet so as to adjust the internal vacuum degree.

7. The vacuum valve according to claim 5, characterized in that: The vacuum element is provided with a first vacuum part and a second vacuum part, and the vacuum element is used to generate a vacuum in the airflow, the first vacuum part is sleeved on one end of the second vacuum part, the first vacuum part is embedded in the first flow channel, and a silencer is provided at the other end of the second vacuum part, and the silencer is used to reduce the noise generated by the vacuum element.

8. The vacuum valve according to claim 6, characterized in that: The vacuum component also includes a vacuum pressure gauge, which is installed on the ninth connecting port of the vacuum flow channel and is used to detect the pressure value in the vacuum-breaking flow channel.

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