A two-way controllable gas valve

Abstract

The present invention relates to the field of air valve technology, and more specifically, it relates to a two-way controllable air valve, in which an air nozzle, a limiting sleeve, a bushing and a mounting sleeve are sequentially mounted, and the air nozzle and the limiting sleeve are fixedly positioned and restricted in the through hole by the end-to-end abutment of the abutting end and the limiting end, and a flow gap for air flow to pass through is left between the limiting sleeve and the air nozzle, and a ball is clamped between the limiting end and the air nozzle, and the ball is used to seal the inlet and outlet of the through hole, and the flow end of the flow gap and the two ends of the extrusion mechanism belonging to the ball are arranged in a counterposition, so that the flow size of the flow gap can be adjusted by adjusting the extrusion mechanism, and the precise operation of the valve to control the flow size of the air flow can be truly achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas valves, and more particularly to a bidirectional controllable gas valve. Background Art

[0002] Double air-controlled reversing valve, that is, control signal ports are opened at both ends of the valve, and air control signals are introduced alternately to control the switching operation of the main valve.

[0003] When there is no signal on the right end of the valve and a gas signal is introduced on the left end, the valve core is pushed to the right end; when there is no signal on the left end of the valve and a gas signal is introduced on the right end, the valve core is pushed to the left end. This realizes free switching of two-way switching.

[0004] However, since the main valve needs to switch back and forth, and the valve cannot be completely blocked, on this basis, the only way is to reduce or increase the fluid by simply controlling the pressure of the signal source that introduces the pneumatic control signal, and it is impossible to truly achieve precise operation of the valve control. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a two-way controllable air valve, which has the advantages of convenient airflow control and strong adaptability.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a two-way controllable air valve, comprising an installation sleeve, a bushing, a limit sleeve and an air nozzle which are sequentially sleeved from the outside to the inside, a through hole is opened in the installation sleeve and the bushing, one end of the installation sleeve is provided with an abutting end for the bushing and the limit sleeve to abut, the other end of the limit sleeve is provided with a limiting end for the air nozzle to abut, the abutting end and the limiting end are abutted head to tail so that the air nozzle and the limit sleeve form a fixed accommodation in the through hole, a ball is clamped between the limiting end and the air nozzle, the ball is blocked at the inlet and outlet of the through hole, a flow gap is provided between the limit sleeve and the air nozzle, the flow gap extends along the length direction of the through hole and converges in the direction of the ball, an extrusion mechanism for extruding the ball is provided in the air nozzle, the flow end of the flow gap and the extrusion mechanism belong to the two ends of the ball to form a counter-positioned arrangement, so that the flow size of the flow gap can be adjusted by adjusting the extrusion mechanism.

[0007] Preferably, the extrusion mechanism includes a through diameter opened in the air nozzle, the ball slides along the length direction of the through diameter, an internal thread for fixing with a Kimi screw is opened in the through diameter, a spring is arranged between the Kimi screw and the ball, and the force of the spring on the ball being squeezed can be adjusted by fixing the Kimi screw in the through diameter to a certain depth.

[0008] Preferably, the flow gap includes an extension end left along the air nozzle and the limit sleeve for fixed alignment and a connection end left along the air nozzle end and the limit end for fixed alignment, and the inlet and outlet of the through hole, the connection end and the extension end are sequentially connected to each other.

[0009] Preferably, the connecting end is arranged obliquely from top to bottom on the inner side of the air nozzle along a direction close to the central axis of the through hole.

[0010] Preferably, the mounting sleeve is provided with an external thread.

[0011] In summary, the present invention has the beneficial effects: the air nozzle, the limiting sleeve, the bushing and the mounting sleeve are sequentially sleeved, and the air nozzle and the limiting sleeve are fixedly positioned and restricted in the through hole by the end-to-end abutment of the abutting end and the limiting end, and a flow gap for air flow to pass through is left between the limiting sleeve and the air nozzle, and a ball is clamped between the limiting end and the air nozzle, and the ball is used to seal the inlet and outlet of the through hole, and the flow end of the flow gap and the two ends of the extrusion mechanism belonging to the ball are formed in a corresponding arrangement, so that the flow size of the flow gap can be adjusted by adjusting the extrusion mechanism, and the precise operation of the valve to control the flow size of the air flow can be truly achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is an exploded view of an embodiment of the present invention;

[0013] Figure 2 is a cross-sectional view of the forward flow of airflow in an embodiment of the present invention;

[0014] Figure 3 It is a cross-sectional view of the reverse flow of airflow according to an embodiment of the present invention.

[0015] Figure numerals: 1. Mounting sleeve; 11. Bushing; 12. Limiting sleeve; 13. Air nozzle; 14. Through hole; 15. Abutment end; 16. Limiting end; 2. Ball; 21. Inlet and outlet; 3. Through diameter; 31. Kimi screw; 32. Spring; 4. Extension end; 41. Connecting end. DETAILED DESCRIPTION

[0016] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0017] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component.

[0018] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0020] A two-way controllable gas valve, see Figure 1 , first install the Kimi screw 31 in the air nozzle 13, complete the threaded fixation through the internal thread in the air nozzle 13 and the Kimi screw 31, and install the spring 32 in the diameter 3, and then arrange the limiting sleeve 12 on the outer shell, and then place the ball 2 on the bushing 11, and finally arrange the installation sleeve 1 on the outside of the bushing 11 to complete the assembly. Since the central axes of the installation sleeve 1, bushing 11, limiting sleeve 12 and air nozzle 13 are the same central axis, and one end of the installation sleeve 1 is provided with an abutting end 15 for the bushing 11 and the limiting sleeve 12 to abut, and the other end of the limiting sleeve 12 is provided with a limiting sleeve for the air nozzle 13 to abut The control end 16 makes the abutting end 15 and the limiting end 16 abut each other end to end to form a fixed accommodation for the air nozzle 13 and the limiting sleeve 12 in the through hole 14, and limits the movement of the air nozzle 13 and the limiting sleeve 12. The air nozzle 13 and the limiting sleeve 12 are fixed, which provides a basis for setting the flow gap. On this basis, the flow end of the flow gap and the two ends of the through diameter 3 belonging to the ball 2 are formed in a counter-positioned manner, that is, the squeezing of the ball 2 by the spring 32 and the squeezing of the ball 2 by the airflow in the flow gap are offset, so that the ball 2 can be pushed and the adaptability of the valve body can be adjusted by adjusting the connection depth of the base screw 31.

[0021] An external thread is arranged on the outside of the installation sleeve 1 to facilitate the installation of external devices.

[0022] The flow gap includes an extension end 4 set aside along the air nozzle 13 and the limiting sleeve 12, and a connection end 41 set aside along the end of the air nozzle 13 and the abutment end 15. The flow gap is formed by the gaps between the air nozzle 13 and the limiting sleeve 12 and the bushing 11, respectively, and the inlet and outlet 21 of the through hole 14, the connection end 41 and the extension end 4 are connected to each other in sequence to form a channel for air flow. The squeezing of the ball 2 by the spring 32 at the channel controls the flow size of the air flow in the channel.

[0023] The connecting end 41 is tilted from top to bottom on the inner side of the air nozzle 13 along the direction close to the central axis of the through hole 14, that is, the outlet of the air nozzle 13 is tilted to ensure that the driving force of the airflow can lift the ball 2.

[0024] Status 1: See Figure 2

[0025] The airflow enters from one end of the abutting end 15 through the flow gap, and flows to the inlet and outlet 21 of the through hole 14 through the extension end 4 and the connecting end 41 in turn, and converges to the ball 2 at the inlet and outlet 21 of the through hole 14. Since the position of the inlet and outlet 21 of the through hole 14 is lower than the center position of the ball 2, and the air nozzle 13 is inclined, the airflow is forced to push up the ball 2, and under the pressure of the spring 32 of the ball 2, the airflow moves back and forth or is temporarily limited in the diameter 3 to complete the positive ventilation.

[0026] Status 2: See Figure 3

[0027] The airflow enters from one end of the limiting end 16 through the flow gap, and flows in the direction of the extension end 4 through the inlet and outlet 21 of the through hole 14 and the connecting end 41 in sequence. The airflow directly lifts the ball 2 at the inlet and outlet 21 of the through hole 14, and the airflow is elastically squeezed by the spring 32 on the ball 2 and diffused toward the connecting end 41, and finally the airflow is led out from the extending end 4 to complete the reverse ventilation.

[0028] The above embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A two-way controllable gas valve, characterized by: The cam is an airtight container, and the container is constructed so that the container will have an interior and exterior surface that can hold the container in place and allow the container to unclog the container and into place. The container is constructed so that the container will have an interior and exterior surface that can hold the container in place and allow the container to unclog the container. The extrusion mechanism includes a through-path opened in the air nozzle, the ball slides along the length direction of the through-path, an internal thread for fixing with a Kimi screw is opened in the through-path, a spring is arranged between the Kimi screw and the ball, and the magnitude of the spring's extrusion force on the ball is adjusted by fixing the Kimi screw in the through-path to a certain depth; The installation sleeve is provided with external threads.

2. A two-way controllable gas valve according to claim 1, characterized in that: The flow gap includes an extension end set aside along the air nozzle and the limit sleeve for fixed alignment and a connection end set aside along the air nozzle end and the limit end for fixed alignment. The inlet and outlet of the through hole, the connection end and the extension end are sequentially connected to each other.

3. A two-way controllable gas valve according to claim 2, characterized in that: The connecting end is arranged obliquely from top to bottom in sequence along the inner side of the air nozzle and close to the central axis of the through hole.

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