Vacuum fan airflow control valve

Abstract

The utility model discloses an airflow control valve of a vacuum fan. Comprising a valve body, end covers and air cylinders, the left end and the right end of the valve body are opened, the end covers are detachably arranged at the openings in the two ends of the valve body respectively, the air cylinders and vent grooves are arranged on the end covers, and baffles are arranged at the output ends of the air cylinders; an air suction port, an air exhaust port and a connector are formed in the valve body, the connector is formed in the middle of the valve body, the air suction port and the air exhaust port are symmetrically arranged with the connector as the center line, the air suction port and the air exhaust port are connected with the air suction end and the air exhaust end of a vacuum fan respectively, and the connector is connected with suction cup equipment; vent holes are formed in the valve body and symmetrically arranged with the connector as the center line, and the baffle is located between the vent groove and the vent holes. The vent groove and the vent hole on one side of the suction port form a suction channel, and the vent groove and the vent hole on one side of the exhaust port form an exhaust channel. According to the utility model, the working efficiency is improved, and the production cost is reduced.

Description

Technical field:

[0001] The utility model belongs to the technical field of vacuum fans, and particularly relates to an airflow control valve for vacuum fans. Background technology:

[0002] When the suction cup is working, a vacuum generator is often used to provide suction to the suction cup. When the positive pressure air source is insufficient at the work site, a vacuum fan is generally used to replace the vacuum generator. The vacuum fan provides suction to the suction cup after being powered on.

[0003] The internal structure of the airflow direction control valve in the existing vacuum fan is relatively complex, the production cost is high, and the suction and exhaust conversion efficiency of the suction cup is low. How to design an airflow control valve with a simple structure and high working efficiency is a problem that needs to be solved.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility model content:

[0005] The utility model aims to provide a vacuum fan airflow control valve with a simple internal structure of the valve body, thereby overcoming the defects in the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides a vacuum fan airflow control valve, including a valve body, an end cover, and a cylinder, wherein the left and right ends of the valve body are open, and the end covers are detachably arranged at the openings at both ends of the valve body, the end covers are provided with a cylinder and a ventilation groove, and the output end of the cylinder is provided with a baffle; the valve body is provided with an air intake port, an exhaust port, and an interface, wherein the interface is arranged in the middle of the valve body, the air intake port and the exhaust port are symmetrically arranged with the interface as the center line, the air intake port and the exhaust port are respectively connected to the air intake end and the exhaust end of the vacuum fan, and the interface is connected to a suction cup device; the valve body is provided with a ventilation hole, the ventilation hole is symmetrically arranged with the interface as the center line, and the baffle is located between the ventilation groove and the ventilation hole; the ventilation groove and the ventilation hole on one side of the air intake port form an air intake channel, and the ventilation groove and the ventilation hole on one side of the exhaust port form an exhaust channel, and the movement of the baffle is controlled by the cylinder to change the on-off state of the air intake channel, the exhaust channel and the interface, so as to control the air intake and exhaust of the suction cup device.

[0007] Preferably, in the technical solution, the vacuum blower airflow control valve also includes a solenoid valve, which is arranged on one side of the cylinder. The solenoid valve controls the air intake and air outlet of the cylinders on both sides, and further controls the movement of the baffle.

[0008] Preferably, in the technical solution, the valve body includes a left unit, a middle unit and a right unit, and the left unit, the middle unit and the right unit are all open structures on the left and right sides. The left unit, the middle unit and the right unit are spliced ​​to form an internally connected valve body, and air vents are formed at the connection between the left unit and the middle unit and at the connection between the right unit and the middle unit respectively. An interface is provided on the top surface of the middle unit, and an air intake port and an air exhaust port are respectively provided on the front sides of the left unit and the right unit. End covers are respectively provided on the left unit and the right unit, and the air grooves on the end covers are connected to the interior of the valve body; the air grooves and air holes on the left unit form an air intake channel, and the air grooves and air holes on the right unit form an air exhaust channel.

[0009] Preferably, in the technical solution, the end cover includes a cover body, a through hole, a vent groove, and a support block. The cover body is detachably arranged at the openings at both ends of the valve body. A through hole is opened at the center of the cover body, and the through hole is connected to the interior of the valve body. Support blocks are arranged at the four corners of the cover body. The gaps between the support blocks form a cross-shaped vent groove, which is connected to the through hole. The cylinder is arranged on the support block; the baffle is located between the through hole and the vent hole.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The vacuum fan airflow control valve can be used to change the suction and exhaust state of the suction cup quickly and easily, thereby improving work efficiency. The vacuum fan airflow control valve has a simple internal structure and reduces production costs. Description of the drawings:

[0012] Figure 1 This is a schematic diagram of the structure of the airflow control valve of the vacuum blower of the utility model;

[0013] Figure 2 This is a top view of the airflow control valve of the vacuum blower of the utility model;

[0014] Figure 3 for Figure 2 AA section view;

[0015] Figure 4 It is a schematic diagram of the end cover structure of the utility model. Specific implementation method:

[0016] The specific implementation modes of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0017] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0018] like Figure 1-4As shown, a vacuum blower air flow control valve comprises a valve body 1, a left end cover 2, a right end cover 3, a left cylinder 4, a right cylinder 5, and a solenoid valve 6. The valve body 1 comprises a left unit 10, a middle unit 11, and a right unit 12. The left unit 10, the middle unit 11, and the right unit 12 are all structures with openings on the left and right sides. The left unit 10, the middle unit 11, and the right unit 12 are spliced ​​to form an internally connected valve body 1. A left air vent 13 is formed at the connection between the left unit 10 and the middle unit 11, and a right air vent 14 is formed at the connection between the right unit 12 and the middle unit 11. An interface 15 is provided on the top surface of the middle unit 11. An air intake port 16 and an air exhaust port 17 are respectively provided on the front sides of the left unit 10 and the right unit 12. The air intake port 16 and the air exhaust port 17 are symmetrically arranged with the interface 15 as the center line, and the left air vent 13 and the right air vent 14 are symmetrically arranged with the interface 15 as the center line.

[0019] The left end cover 2 includes a left cover body 20, a left through hole 21, a left ventilation groove 22, and a left support block 23. The left cover body 20 is fixed to the left opening of the left unit 10 by bolts. A left through hole 21 is opened in the center of the left cover body 20, and the left through hole 21 is communicated with the interior of the valve body 1. Left support blocks 23 are arranged at the four corners of the left cover body 20. The gaps between the left support blocks 23 form a cross-shaped left ventilation groove 22, and the left ventilation groove 22 is communicated with the left through hole 21. The left cylinder 4 is arranged on the left support block 23; a left baffle plate 40 is arranged at the output end of the left cylinder 4, and the left baffle plate 40 is located between the left through hole 21 and the left ventilation hole 13, and the left baffle plate 40 is adapted to the size of the left through hole 21 and the left ventilation hole 13.

[0020] The right end cover 3 includes a right cover body 30, a right through hole 31, a right ventilation groove 32, and a right support block 33. The right cover body 30 is fixed to the right opening of the right unit 12 by bolts. A right through hole 31 is opened at the center of the right cover body 30, and the right through hole 31 is communicated with the interior of the valve body 1. Right support blocks 33 are arranged at the four corners of the right cover body 30. The gaps between the right support blocks 33 form a cross-shaped right ventilation groove 32, and the right ventilation groove 32 is communicated with the right through hole 31. The right cylinder 5 is arranged on the right support block 33; a right baffle plate 50 is arranged at the output end of the right cylinder 5, and the right baffle plate 50 is located between the right through hole 31 and the right ventilation hole 14, and the right baffle plate 50 is adapted to the size of the right through hole 31 and the right ventilation hole 14.

[0021] The left ventilation groove 22, the left through hole 21, and the left ventilation hole 13 form an air suction channel, the right ventilation groove 32, the right through hole 31, and the right ventilation hole 14 form an exhaust channel, the air suction port 16 and the exhaust port 17 are respectively connected to the air suction end and the exhaust end of the vacuum fan, and the interface 15 is connected to the suction cup device;

[0022] The solenoid valve 6 is arranged on the right cylinder 5, and controls the air intake and exhaust of the left cylinder 4 and the right cylinder 5. The actions of the left baffle 40 and the right baffle 50 are controlled by the left cylinder 4 and the right cylinder 5 respectively, thereby changing the on-off state of the suction channel, the exhaust channel and the interface 15, and controlling the suction and exhaust of the suction cup equipment.

[0023] When the suction cup device needs to suck air, the right cylinder 5 starts to drive the right baffle 50 to extend forward, the right baffle 50 closes the right vent 14, and the vacuum fan discharges the gas through the exhaust port 17, the right through hole 31, and the right ventilation groove 32. At the same time, the left cylinder 4 starts to drive the left baffle 40 to recover, the left baffle 40 closes the left through hole 21, and the suction end of the vacuum fan is connected with the interface 15 through the suction port 16 and the left vent 13 to realize the suction of the suction cup device.

[0024] When the suction cup device needs to be exhausted, the left cylinder 4 starts to drive the left baffle 40 to extend forward, the left baffle 40 closes the left vent 13, and the vacuum fan sucks in the gas through the left ventilation groove 22, the left through hole 21, and the suction port 16. At the same time, the right cylinder 5 starts to drive the right baffle 50 to recover, and the right baffle 50 closes the right through hole 31. The exhaust end of the vacuum fan is connected with the exhaust port 17 and the right vent 14 and the interface 15 to realize the exhaust of the suction cup device.

[0025] The vacuum fan airflow control valve can be used to change the suction and exhaust state of the suction cup quickly and easily, thereby improving work efficiency. The vacuum fan airflow control valve has a simple internal structure and reduces production costs.

[0026] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A vacuum fan air flow control valve, characterized in that: It includes a valve body, an end cover, and a cylinder. The left and right ends of the valve body are open, and the end covers are detachably arranged at the openings at both ends of the valve body. The end covers are provided with a cylinder and a ventilation groove, and a baffle is provided at the output end of the cylinder; the valve body is provided with an air intake port, an exhaust port, and an interface, wherein the interface is arranged in the middle of the valve body, the air intake port and the exhaust port are symmetrically arranged with the interface as the center line, the air intake port and the exhaust port are respectively connected to the air intake end and the exhaust end of the vacuum fan, and the interface is connected to the suction cup device; the valve body is provided with air vents, the air vents are symmetrically arranged with the interface as the center line, and the baffle is located between the air vents and the air vents; the air vents and the air vents on one side of the air intake port form an air intake channel, and the air vents and the air vents on one side of the exhaust port form an exhaust channel, and the movement of the baffle is controlled by the cylinder to change the on-off state of the air intake channel, the exhaust channel and the interface, so as to control the air intake and exhaust of the suction cup device.

2. The vacuum blower air flow control valve according to claim 1, characterized in that: The vacuum blower air flow control valve also includes a solenoid valve, which is arranged on one side of the cylinder. The solenoid valve controls the air intake and air outlet of the cylinders on both sides, and further controls the movement of the baffle.

3. The vacuum blower air flow control valve according to claim 1, characterized in that: The valve body includes a left unit, a middle unit and a right unit. The left unit, the middle unit and the right unit are all open structures on the left and right sides. The left unit, the middle unit and the right unit are spliced ​​to form an internally connected valve body. Vents are formed at the connection between the left unit and the middle unit, and at the connection between the right unit and the middle unit, respectively. An interface is arranged on the top surface of the middle unit. Intake ports and exhaust ports are respectively arranged on the front sides of the left unit and the right unit, respectively. End covers are respectively arranged on the left unit and the right unit, and the ventilation grooves on the end covers are connected with the interior of the valve body; the ventilation grooves and ventilation holes on the left unit form an intake channel, and the ventilation grooves and ventilation holes on the right unit form an exhaust channel.

4. The vacuum blower air flow control valve according to claim 1, characterized in that: The end cover includes a cover body, a through hole, a ventilation groove, and a support block. The cover body is detachably arranged at the openings at both ends of the valve body. A through hole is opened at the center of the cover body, and the through hole is connected to the inside of the valve body. Support blocks are arranged at the four corners of the cover body. The gaps between the support blocks form a cross-shaped ventilation groove, which is connected to the through hole. The cylinder is arranged on the support block; the baffle is located between the through hole and the ventilation hole.

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