Vacuum generator flow regulating valve

Abstract

The utility model relates to flow regulating valve technical field especially, it relates to a vacuum generator flow regulating valve, include: regulating valve body, regulating valve body includes the regulating end of upper side and the aeration end of lower side, limiting piece is configured on the outer wall upper end of regulating end, limiting piece and the location pin limiting cooperation in vacuum generator, control assembly includes the first control spare of being configured in the top center place of regulating end and the second control spare of being configured in the first diameter of regulating end top, regulating valve body rotates when the second control spare synchronously, airflow channel includes the first through -hole of being configured in the lateral wall of aeration end, the second through -hole of being configured in the bottom of aeration end and the through -hole in aeration end inner chamber, adjusting piece is configured in the outer wall of aeration end, and with one of the vertical side end of first through -hole as the starting point along the regulating valve body circumferential by deep shallow extension.

Description

Technical Field

[0001] This utility model relates to the field of flow regulating valve technology, and in particular to a flow regulating valve for a vacuum generator. Background Technology

[0002] With the increasing application of pneumatic technology in modern industry and other fields, the demand for precise regulation of gas flow and pressure is growing. Therefore, flow control valves for vacuum generators have emerged. Their core principle is based on fluid mechanics, achieving effective control of gas velocity and pressure by changing the cross-sectional area of ​​the gas flow channel. This not only meets the requirements for stable gas supply and safe operation in production processes but also significantly improves the system's energy efficiency and automation level.

[0003] Traditional and similar products on the current market typically employ a split structure in their design and manufacturing to meet gas flow regulation performance requirements. They consist of a long rod with a tapered end and a non-circular locating block with a threaded opening, connected by the external thread of the rod and the internal thread of the locating block. This type of product uses the tapered rod tip to block one end of the two connecting gas passages, and the axial extension and retraction of the rod by rotating the thread allows for control of the gas flow within the passages.

[0004] The flow control valve used in this vacuum generator has the following drawbacks: ① Slow response speed: It uses a threaded rotation to extend and retract the rod blocking the air passage, typically requiring multiple rotations of the thread while the axial displacement of the rod is minimal. ② Inconspicuous flow adjustment: Without a reference point, it's difficult to intuitively perceive how much the flow control valve has opened or closed. ③ Large size and high cost: Due to its composition of multiple separate parts, including a long rod and a positioning block, and the fact that the rod diameter usually needs to be comparable to the air passage diameter, this type of flow control valve is generally large and expensive to manufacture. ④ Weak structural robustness: During use, the matching sealing ring requires frequent axial movement, which affects the overall reliability of the control valve. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and to provide a vacuum generator flow regulating valve, comprising: The regulating valve body includes an upper regulating end and a lower venting end; A limiting member is disposed on the upper end of the outer wall of the adjusting end, and the limiting member is in a limiting engagement with the positioning pin in the vacuum generator; The control assembly includes a first control member disposed at the top center of the adjusting end for disassembly and a second control member disposed at a first diameter at the top of the adjusting end, wherein the regulating valve body rotates synchronously when the second control member rotates; The airflow channel includes a first through hole disposed on the side wall of the vent end, a second through hole disposed at the bottom of the vent end, and a through hole located in the inner cavity of the vent end, wherein the first through hole, the through hole in the inner cavity of the vent end, and the second through hole constitute the airflow channel in communication. An adjusting element is disposed on the outer wall of the vent end and extends from deep to shallow along the circumference of the regulating valve body, starting from one of the vertical side ends of the first through hole.

[0006] Furthermore, the regulating valve body has a cylindrical structure, and the outer wall of the regulating end of the regulating valve body is provided with a first groove, and the outer wall of the venting end of the regulating valve body is provided with two second grooves, the second grooves being located on the side of the regulating member away from the regulating end.

[0007] Furthermore, a sealing ring is provided in both the first groove and the two second grooves.

[0008] Furthermore, a threaded hole is provided at the top center of the adjustment end towards the vent end, and the threaded hole is the first control element.

[0009] Furthermore, the top of the adjustment end is provided with a third hollow groove along the first diameter of the upper end face towards the ventilation end. The third hollow groove is the second control component, and the first diameter and the vertical diameter of the first through hole are located on the same vertical plane.

[0010] Furthermore, one of the hollowed-out groove ends of the adjusting member extends circumferentially from the adjusting valve body to the other hollowed-out groove end to form a semi-circular notch, which is the limiting member.

[0011] Furthermore, a gradient arc groove is formed on one side of the first through hole, smoothly transitioning from deep to shallow along the circumferential direction of the regulating valve body. The gradient arc groove is the regulating element.

[0012] Furthermore, the shallow end of the adjusting member is located on the same vertical plane as the first diameter.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model discloses a vacuum generator flow regulating valve. By inserting a flathead screwdriver into the second control component and rotating it, the cross-sectional area of ​​the connected air passage can be changed. The axis of the second control component, the vertical diameter of the first through hole, and the shallow end of the regulating component are all located on the same vertical plane. Therefore, the cross-sectional area of ​​the connected air passage can be determined from the rotation angle of the second control component. The operation process is intuitive, simple, and highly controllable, and has good tactile or visual feedback (easy to perceive), ensuring that the user can clearly grasp the adjustment status, thus improving the reliability of operation and user experience.

[0014] 2. The vacuum generator flow regulating valve of this utility model adopts a highly compact structural design, which significantly reduces the size of the device, facilitates integration into various application equipment, and effectively optimizes the utilization rate of the internal space of the product.

[0015] 3. The adjustment end of the flow regulating valve of the vacuum generator of this utility model is provided with a first control component (threaded hole) at the top. After inserting a screwdriver into the first control component and rotating it, the device can be pulled out by applying upward force, which is convenient for installation, maintenance and replacement. Attached Figure Description

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a front view of a vacuum generator flow regulating valve according to the present invention; Figure 2 This is a right view of a vacuum generator flow regulating valve according to the present invention; Figure 3 This is a top view of a vacuum generator flow regulating valve according to the present invention; Figure 4 This is a top-view diagram of a vacuum generator flow regulating valve according to the present invention. Figure 5 This is a schematic diagram of the installation of a vacuum generator flow regulating valve according to the present invention; Figure 6 This is an elevation view of a vacuum generator flow regulating valve according to the present invention.

[0017] Figure Labels 1: Control valve body; 11: First groove; 12: Second groove; 2: Limiting components; 3: Positioning pin; 4: Control components; 41: First control component; 42: Second control component; 5: Airflow channel; 51: First through hole; 52: Second through hole; 53: Through hole; 6: Adjusting components; 7: Sealing ring; 8: Adjust the opening of the switch; 9: Airway. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model.

[0019] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0020] First Embodiment Please see Figure 1-6 The technical solution for a vacuum generator flow regulating valve provided in this embodiment includes the following: The regulating valve body 1 includes an upper regulating end and a lower venting end; The limiting member 2 is disposed on the upper end of the outer wall of the adjustment end, and the limiting member 2 is in a limiting engagement with the positioning pin 3 in the vacuum generator; The control component 4 includes a first control element 41 disposed at the top center of the adjustment end for disassembly and a second control element 42 disposed at the top of the adjustment end at a first diameter. The regulating valve body 1 rotates synchronously when the second control element 42 rotates. The airflow channel 5 includes a first through hole 51 disposed on the side wall of the venting end, a second through hole 52 disposed at the bottom of the venting end, and a through hole 53 located in the inner cavity of the venting end. The first through hole 51, the through hole 53 in the inner cavity of the venting end, and the second through hole 52 constitute the airflow channel 5 in communication. Adjustment member 6 is disposed on the outer wall of the vent end and extends from deep to shallow along the circumference of the regulating valve body 1, starting from one of the vertical side ends of the first through hole 51.

[0021] In specific implementation, with attachment Figure 1 For example, attached Figure 1 The cylindrical structure in the figure is the regulating valve body 1. The regulating valve body 1 has an upper half as the regulating end and a lower half as the venting end. The outer wall of the regulating end of the regulating valve body 1 is provided with a first groove 11. The outer wall of the venting end of the regulating valve body 1 is provided with two second grooves 12 below the first through hole 51. Each of the first groove 11 and the two second grooves 12 is provided with a sealing ring 7. (See attached figure) Figure 5As shown, the regulating valve body 1 is installed in a cylindrical groove that runs through three compartments. The top compartment of the regulating valve has a regulating switch opening 8, the middle compartment has a transverse air passage 9 that connects to the side wall of the cylindrical groove, and the lower compartment has a vertical air passage 9 that connects to the bottom of the regulating valve body 1. The sealing ring 7 of the first groove 11 seals and isolates the uppermost compartment and the middle compartment, and the sealing rings 7 in the two second grooves 12 are used to seal and isolate the middle compartment and the lower compartment.

[0022] Specifically, as shown in the attached document Figure 3 As shown, a threaded hole is provided at the top center of the adjustment end towards the vent end, and the threaded hole is the first control component 41. In actual use, the device can be pulled out for inspection or replacement by inserting a screwdriver into the threaded hole, rotating it, and then applying upward force.

[0023] Specifically, as shown in the attached document Figure 3 As shown, the top of the adjustment end is provided with a third hollow groove along the first diameter of the upper end face towards the ventilation end. The third hollow groove is the second control component 42. The first diameter and the vertical diameter of the first through hole 51 are located on the same vertical plane.

[0024] Specifically, one of the hollowed-out slots of the adjusting member 6 extends circumferentially from the adjusting valve body 1 to the other hollowed-out slot, forming a semi-circular notch. This semi-circular notch serves as the limiting member 2. It is used to adjust the flow rate of the vacuum generator by changing the cross-section within the air passage 9. Specifically, a gradient arc groove is formed on one side of the first through hole 51, which smoothly transitions from deep to shallow along the circumferential direction of the regulating valve body 1. The gradient arc groove is the regulating component 6.

[0025] Specifically, the shallow end of the adjusting member 6 is located on the same vertical plane as the first diameter.

[0026] The working principle or process of the vacuum generator flow regulating valve provided by this utility model is as follows: Preparation: Insert this product into the airway 9 where flow regulation is required. Before inserting the product, install sealing devices such as sealing rings 7 on the first groove 11 and the second groove 12 of the product to ensure that there is no air leakage at both ends of the airway 9. Limiting operation: A positioning pin 3 is usually applied to the upper side of the embedded product to limit the axial displacement and rotation of the product; Working process: Positive pressure gas or negative pressure vacuum gas in the intermediate chamber enters the first through hole 51 through one side air passage 9, then passes through the through hole 53 in the inner cavity of the vent end and exits through the second through hole 52. The flow rate is adjusted by inserting a flathead screwdriver into the second control component 42 at the opening of the product's adjustment switch and rotating it to change the cross-sectional area of ​​the adjustment component 6 connected to the product's air passage 9, thereby changing the gas flow rate after passing through the product, achieving stepless and precise adjustment of the gas flow rate in the flow channel. Furthermore, due to the unique design of the second control component 42 and the adjustment component 6, the flow rate in the adjusted air passage 9 can be visually judged by observing the angle of the flat slot (second control component 42) at the top of the product. The threaded opening in the middle of the flat slot (first control component 41) at the top of the product allows for convenient disassembly and installation of the product when it is necessary to check the status of the air passage 9.

[0027] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flow regulating valve for a vacuum generator, characterized in that, include: The regulating valve body includes an upper regulating end and a lower venting end; A limiting member is disposed on the upper end of the outer wall of the adjusting end, and the limiting member is in a limiting engagement with the positioning pin in the vacuum generator; The control assembly includes a first control member disposed at the top center of the adjusting end for disassembly and a second control member disposed at a first diameter at the top of the adjusting end, wherein the regulating valve body rotates synchronously when the second control member rotates; The airflow channel includes a first through hole disposed on the side wall of the vent end, a second through hole disposed at the bottom of the vent end, and a through hole located in the inner cavity of the vent end, wherein the first through hole, the through hole in the inner cavity of the vent end, and the second through hole constitute the airflow channel in communication. An adjusting element is disposed on the outer wall of the vent end and extends from deep to shallow along the circumference of the regulating valve body, starting from one of the vertical side ends of the first through hole.

2. The vacuum generator flow regulating valve according to claim 1, characterized in that: The regulating valve body has a cylindrical structure. The outer wall of the regulating end of the regulating valve body is provided with a first groove, and the outer wall of the venting end of the regulating valve body is provided with two second grooves. The second grooves are located on the side of the regulating element away from the regulating end.

3. The vacuum generator flow regulating valve according to claim 1, characterized in that: A sealing ring is provided in both the first groove and the two second grooves.

4. The vacuum generator flow regulating valve according to claim 1, characterized in that: A threaded hole is provided at the top center of the adjustment end toward the vent end, and the threaded hole is the first control component.

5. The vacuum generator flow regulating valve according to claim 1, characterized in that: The top of the adjustment end is provided with a third hollow groove along the first diameter of the upper end face towards the ventilation end. The third hollow groove is the second control component. The first diameter and the vertical diameter of the first through hole are located on the same vertical plane.

6. The vacuum generator flow regulating valve according to claim 1, characterized in that: One of the hollowed-out groove ends of the regulating component extends circumferentially from the regulating valve body to the other hollowed-out groove end, forming a semi-circular notch, which is the limiting component.

7. The vacuum generator flow regulating valve according to claim 1, characterized in that: A gradient arc groove is formed on one side of the first through hole, which smoothly transitions from deep to shallow along the circumferential direction of the regulating valve body. The gradient arc groove is the regulating component.

8. The vacuum generator flow regulating valve according to claim 5, characterized in that: The shallow end of the adjusting member is located on the same vertical plane as the first diameter.

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