A common rail solenoid valve applied to high-strength high-speed scene

Abstract

The utility model discloses a kind of common rail solenoid valve applied to high-strength high-speed scene, it is related to the technical field of common rail solenoid valve, solve the solenoid valve when using, need valve core to move up and down to open and close to inlet, collision can occur in long-term use, and the position sealing of valve core is reduced, thereby can appear the phenomenon of liquid leakage, reduce the use efficiency of solenoid valve Problem, including shell and sealing cover, the inside of shell is provided with through-hole, the sealing cover is sealed and is connected in the upper end of shell, the upper end of shell is fixedly installed with controller, the inside of sealing cover is provided with sealing valve core, and with the control end of controller fixed connection, since the height of sealing valve core is less than the depth of through-hole, when sealing valve core is closed, into the lower end of infusion hole, and will not contact with the bottom of through-hole, can effectively protect sealing valve core.

Description

Technical Field

[0001] This utility model relates to the technical field of common rail solenoid valves, specifically a common rail solenoid valve for use in high-intensity, high-speed applications. Background Technology

[0002] The common rail solenoid valve is a key component of the high-pressure common rail fuel injection system, mainly used to precisely control the fuel injection quantity and timing.

[0003] A search revealed Chinese patent publication number CN212429063U, which discloses a common rail injector solenoid valve. The valve includes a solenoid valve body, an oil supply pipe, a support spring, and a hydraulic sensor. The solenoid valve body includes an inlet nozzle, a return nozzle, an injector nozzle, a terminal block, and a return filter element. The oil supply pipe includes a delivery pipe and a return pipe. The inlet nozzle is connected to the delivery pipe, and the return nozzle is connected to the return pipe. A support spring is fixedly installed between the oil supply pipe and the top of the solenoid valve body. A hydraulic sensor is installed on the delivery pipe to protect the solenoid valve, preventing damage caused by shaking at the connection point during prolonged use, thus extending the valve's lifespan. Additionally, the hydraulic sensor on the delivery pipe detects the oil pressure; changes in oil pressure when blockages or leaks occur facilitate inspection and subsequent maintenance.

[0004] However, when using this solenoid valve, the valve core needs to move up and down to open and close the inlet. Long-term use can cause collisions, which can reduce the sealing of the valve core and lead to leakage, thus reducing the efficiency of the solenoid valve. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a common rail solenoid valve for high-intensity, high-speed applications. It solves the problem that when using a solenoid valve, the valve core needs to move up and down to open and close the inlet. Over time, this can lead to collisions, which reduce the sealing of the valve core and cause leakage, thus reducing the efficiency of the solenoid valve.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a common rail solenoid valve for high-intensity, high-speed applications, comprising a housing and a sealing cover. The housing has a through hole inside, and the sealing cover is sealed to the upper end of the housing. A controller is fixedly installed at the upper end of the housing. A sealing valve core is provided inside the sealing cover and is fixedly connected to the control terminal of the controller. The sealing valve core is slidably connected inside the through hole. A pressure plate is slidably connected inside the through hole. A tension spring is fixedly installed between the pressure plate and the bottom of the through hole. The pressure plate is located at the lower end of the sealing valve core.

[0007] Preferably, an inlet pipe and an outlet pipe are fixedly installed inside the side walls at both ends of the housing, and an inlet hole is provided inside the top opening at the front end of the housing. The inlet hole is connected to the inside of the inlet pipe. The inlet hole and the outlet pipe are both connected inside the through hole. The inlet hole is located above the pressure plate and to the right of the sealing valve core, thereby facilitating the effective closing and opening of the flow channel inside the common rail solenoid valve.

[0008] Preferably, the height of the sealing valve core is less than the depth of the through hole, thereby preventing the sealing valve core from colliding with the bottom of the housing.

[0009] Preferably, the top surface of the sealing valve core after it is closed is level with the top surface of the housing, and the bottom extends to the lower end of the infusion hole, thereby causing leakage from the infusion hole.

[0010] Preferably, the infusion hole is located above the outlet pipe, which facilitates effective sealing of the infusion hole.

[0011] Preferably, a slider is fixedly installed on one side wall of the pressure plate, and a groove is provided inside one side wall of the through hole. The slider is slidably connected to the inside of the groove, and the top surface of the groove is lower than the position of the central axis of the liquid outlet pipe, thereby preventing the pressure plate from affecting the flow of liquid due to vibration.

[0012] This invention provides a common rail solenoid valve for use in high-intensity, high-speed applications. It offers the following advantages: 1. This common rail solenoid valve is used in high-intensity and high-speed scenarios. When the controller drives the sealing valve core to move up and down, it can slide up and down inside the through hole and contact the pressure plate connected with the buffer spring. This can prevent the sealing valve core from colliding and effectively protect it. 2. This common rail solenoid valve is used in high-intensity and high-speed scenarios. When using the common rail solenoid valve, because the height of the sealing valve core is smaller than the depth of the through hole, it can enter the lower end of the infusion hole when the sealing valve core is closed, and will not contact the bottom of the through hole, thus effectively protecting the sealing valve core. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0014] In the diagram, 1 is the housing; 2 is the inlet pipe; 3 is the outlet pipe; 4 is the through hole; 5 is the sealing valve core; 6 is the pressure plate; 7 is the tension spring; 8 is the infusion port; 9 is the controller; 10 is the sealing cover; 11 is the slide groove; and 12 is the slider. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-3This utility model provides a common rail solenoid valve for high-intensity, high-speed applications, comprising a housing 1 and a sealing cover 10. The housing 1 has a through hole 4 inside. The sealing cover 10 is sealed to the upper end of the housing 1. A controller 9 is fixedly mounted on the upper end of the housing 1. A sealing valve core 5 is disposed inside the sealing cover 10 and is fixedly connected to the control terminal of the controller 9. The sealing valve core 5 is slidably connected inside the through hole 4. A pressure plate 6 is slidably connected inside the through hole 4. A tension spring 7 is fixedly installed between the pressure plate 6 and the bottom of the through hole 4. The pressure plate 6 is provided with… The sealing valve core 5 is located at the lower end of the housing 1. An inlet pipe 2 and an outlet pipe 3 are fixedly installed inside the side walls at both ends of the housing 1. An infusion hole 8 is provided inside the top surface of the front end of the housing 1. The infusion hole 8 is connected to the interior of the inlet pipe 2. Both the infusion hole 8 and the outlet pipe 3 are connected inside the through hole 4. The infusion hole 8 is located above the pressure plate 6 and to the right of the sealing valve core 5. The height of the sealing valve core 5 is less than the depth of the through hole 4. When closed, the top surface of the sealing valve core 5 is horizontal to the top surface of the housing 1, and its bottom extends to the lower end of the infusion hole 8. The infusion port 8 is located above the outlet pipe 3. A slider 12 is fixedly installed on one side wall of the pressure plate 6. A groove 11 is provided inside one side wall of the through hole 4. The slider 12 is slidably connected to the inside of the groove 11, and the top surface of the groove 11 is lower than the central axis of the outlet pipe 3. The sealing valve core 5 is moved up and down by the controller 9. The controller at this position controls the sealing valve core 5 using conventional technology in solenoid valves, which does not need to be described in detail here. Subsequently, during the up and down sliding process of the sealing valve core 5 inside the through hole 4, it will contact the pressure plate 6. The pressure plate 6 is connected to the housing 1 through the tension spring 7, which can provide a certain buffering effect when in contact, avoiding damage to the sealing valve core 5 due to direct collision. In addition, since the depth of the through hole 4 is greater than the height of the sealing valve core 5, when the sealing valve core 5 is in the closed state, its lower end can completely enter the lower area of ​​the infusion port 8 without contacting the bottom of the through hole 4. This structural design effectively reduces the wear of the sealing valve core 5 during long-term use, thereby improving the sealing performance and the overall service life of the solenoid valve.

[0017] It should be noted that, in this embodiment, as Figure 1-3As shown, when using the common rail solenoid valve body, the controller 9 moves the sealing valve core 5 up and down. The controller at this position controls the sealing valve core 5 using conventional technology in solenoid valves, which does not need to be described in detail here. Subsequently, during the process of sliding up and down inside the through hole 4, the sealing valve core 5 will contact the pressure plate 6. The pressure plate 6 is connected to the housing 1 through the tension spring 7, which can provide a certain buffering effect when in contact, avoiding damage to the sealing valve core 5 due to direct collision. In addition, since the depth of the through hole 4 is designed to be greater than the height of the sealing valve core 5, when the sealing valve core 5 is in the closed state, its lower end can completely enter the lower area of ​​the infusion hole 8 without contacting the bottom of the through hole 4. This structural design effectively reduces the wear of the sealing valve core 5 during long-term use, thereby improving the sealing performance and the overall service life of the solenoid valve. In actual operation, the inlet pipe 2 and outlet pipe 3 are connected to external pipelines to realize the input and output of liquid. When the controller 9 drives the sealing valve core 5 to move upward, the channel between the inlet pipe 2 and the delivery hole 8 is opened, allowing the liquid to flow in and pass through the delivery hole 8 to enter the next stage. When the controller 9 drives the sealing valve core 5 to move downward to the closed position, the channel is cut off, and the liquid flow stops. Throughout the process, the sealing cover 10 plays a role in fixing and sealing, ensuring the structural stability and operational reliability of the solenoid valve body.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0019] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A common rail solenoid valve for use in high-intensity, high-speed applications, characterized in that: Includes a housing (1) and a sealing cover (10). The housing (1) has a through hole (4) inside. The sealing cover (10) is sealed to the upper end of the housing (1). A controller (9) is fixedly installed at the upper end of the housing (1). A sealing valve core (5) is provided inside the sealing cover (10) and is fixedly connected to the control end of the controller (9). The sealing valve core (5) is slidably connected to the inside of the through hole (4). A pressure plate (6) is slidably connected inside the through hole (4). A tension spring (7) is fixedly installed between the pressure plate (6) and the bottom of the through hole (4). The pressure plate (6) is located at the lower end of the sealing valve core (5).

2. The common rail solenoid valve for high-intensity, high-speed applications according to claim 1, characterized in that: The inlet pipe (2) and outlet pipe (3) are fixedly installed inside the two side walls of the housing (1). The inlet hole (8) is provided inside the top surface of the front end of the housing (1). The inlet hole (8) is connected to the inside of the inlet pipe (2). The inlet hole (8) and the outlet pipe (3) are connected inside the through hole (4). The inlet hole (8) is located above the pressure plate (6) and is located to the right of the sealing valve core (5).

3. The common rail solenoid valve for high-intensity, high-speed applications according to claim 1, characterized in that: The height of the sealing valve core (5) is less than the depth of the through hole (4).

4. The common rail solenoid valve for high-intensity, high-speed applications according to claim 2, characterized in that: The top surface of the sealing valve core (5) after it is closed is level with the top surface of the housing (1), and the bottom extends to the lower end of the infusion hole (8).

5. A common rail solenoid valve for high-intensity, high-speed applications according to claim 2, characterized in that: The infusion hole (8) is located above the outlet pipe (3).

6. The common rail solenoid valve for high-intensity, high-speed applications according to claim 1, characterized in that: A slider (12) is fixedly installed on one side wall of the pressure plate (6). A groove (11) is provided inside one side wall of the through hole (4). The slider (12) is slidably connected to the inside of the groove (11), and the top surface of the groove (11) is lower than the position of the central axis of the liquid outlet pipe (3).

Images