Multi-functional push-button pneumatic adapter

Abstract

A multifunctional key type pneumatic adapter, comprising a valve body, characterized in that: a left joint as an air inlet end is connected to the left end of the valve body, a right joint as an air outlet end is formed at the right end of the valve body, the left and right joints are quick plug joints, two conical valve cores are arranged in the valve body, a spring is arranged between the valve cores to make the valve cores have a tendency to always close the air inlet and outlet, keys are arranged on the upper and lower sides of the valve body, convex ring sections matched with the valve cores are arranged on the left and right sides of the lower end surface of the keys, the height of the left convex ring section is smaller than that of the right convex ring section, when the keys are pressed, the right convex ring section first contacts the conical surface of the right valve core, the right valve core is opened, the left valve core is opened by continuously pressing the keys, the gas flow is controlled by the pressing depth of the keys, when the keys are released, the left valve core is closed first, then the right valve core is closed, and pressure maintenance is realized; the invention has reasonable and compact structure, is convenient and fast to operate, has multiple functions, and can also be used as a small air gun and a one-way valve.

Description

Technical Field

[0001] This invention belongs to the technical field of pneumatic connection devices, and relates to a pneumatic adapter, specifically a multi-functional push-button pneumatic adapter. Background Technology

[0002] A pneumatic adapter is a connection device used in pneumatic systems, primarily for connecting air hoses to pneumatic tools to achieve rapid on / off switching, direction switching, or rotary transmission of gas. It is widely used in air compressors, blowguns, and automated equipment. Existing pneumatic adapters have the following drawbacks during use:

[0003] 1. Single function and separation: the connector is a connector, the switch is a switch, and the pressure holding is a one-way valve, a three-piece set;

[0004] Second, the operation is not user-friendly: there are many knobs and wrenches, which are difficult to operate with one hand and have a poor feel;

[0005] 3. No pressure holding / air storage: It leaks air as soon as the air supply is cut off, making it unsuitable for use as a small air gun and unable to hold pressure.

[0006] 4. Rough appearance: strong industrial style, unibody appearance without adapters, not user-friendly to hold.

[0007] An investigation revealed that Chinese patent CN202520354113.5 discloses a push-button pneumatic connector, which includes a button and a long-stem M-threaded valve core. The button's arc surface is slidably connected to a retaining buckle, the retaining buckle's inner wall is slidably connected to a locking buckle, the locking buckle's arc surface is slidably connected to a pressure ring, and one side of the pressure ring is slidably connected to a shaped sealing ring. A plastic part is mounted on the locking buckle's arc surface. The long-stem M-threaded valve core's arc surface is slidably connected to a long-stem valve core O-ring seal, the long-stem M-threaded valve core's arc surface is fitted with a spring, and the long-stem M-threaded valve core's arc surface is fitted with a valve body. The valve body's inner wall is slidably connected to a valve core O-ring seal. This structure achieves quick connection and disconnection of the air hose by pressing the button. The button protrudes from the side of the valve body, making one-handed operation impossible, and it also lacks a pressure-holding function. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to provide a multi-functional push-button pneumatic adapter that is reasonably compact in structure and easy to operate, in view of the above-mentioned technical status.

[0009] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a multi-functional push-button pneumatic adapter, comprising a valve body, characterized in that: a left connector serving as an air inlet is connected to the left end of the valve body, and a right connector serving as an air outlet is formed at the right end of the valve body; both the left and right connectors are quick-connect connectors; a left valve core and a right valve core are provided inside the valve body, the valve cores being conical valve cores; a spring supports the left and right valve cores, causing the left and right valve cores to always tend to close the air inlet and outlet outwards; a button is provided on at least one side of the valve body surface; a left convex ring section and a right convex ring section, respectively, are provided on the left and right sides of the lower end face of the button to cooperate with the left and right valve cores, wherein the height of the left convex ring section is less than the height of the right convex ring section; when the button is pressed, the right convex ring section first contacts the conical surface of the right valve core, opening the right valve core; continuing to press the button opens the left valve core, and simultaneously controlling the gas flow rate by the depth of button pressing; when the button is released, the left valve core closes first, followed by the right valve core, achieving pressure maintenance.

[0010] As an improvement, the left connector includes a left connector housing, and the left connector housing is provided with an air inlet end fixing seat, an air inlet end bushing and a first rubber sealing ring. The air inlet end fixing seat is disposed outside the air inlet end bushing. The air inlet end bushing and the first rubber sealing ring are coaxially arranged and form a first insertion hole for inserting the first air tube. Inside the air inlet end fixing seat, a first retaining spring for clamping the first air tube is provided between the air inlet end bushing and the first rubber sealing ring.

[0011] Furthermore, the left connector housing is cylindrical, with the front end of the left connector housing being a tapered cone. The air inlet fixing seat is cylindrical and matches the inner diameter of the left connector housing. The length of the air inlet fixing seat is less than the length of the left connector housing. A first protrusion is formed in the middle of the inner wall of the left connector housing. A corresponding first annular groove is formed on the outer wall of the air inlet fixing seat. The air inlet fixing seat is set on the inner wall of the left connector housing through the cooperation of the first annular groove and the first protrusion. The front end of the air inlet fixing seat extends outward and abuts against the front end of the left connector housing. The outer wall of the first rubber sealing ring is provided with two annular protrusions, one at the front and one at the rear. The rear annular protrusion abuts against the rear end of the air inlet fixing seat. The rear inner wall of the air inlet fixing seat is recessed with a first annular groove. The front annular protrusion of the first rubber sealing ring is positioned in the first annular groove and is positioned with the air inlet fixing seat.

[0012] Furthermore, the air inlet bushing is inserted into the front of the inner hole of the air inlet fixing seat by means of a size fit. The front end of the air inlet bushing extends out of the left connector housing. An annular protrusion is provided at the front end of the air inlet bushing. The rear end of the first rubber sealing ring abuts against the rear end of the left connector housing. A first circular opening is provided at the rear end of the first rubber sealing ring to abut against the tapered section of the left valve core.

[0013] Furthermore, the valve body is cylindrical, and a reduced-diameter external thread section is formed on the left side of the valve body to connect with the left connector housing. The rear end of the left connector housing is provided with a corresponding internal thread section, and the left connector is detachably connected to the valve body by means of threaded connection.

[0014] Furthermore, the right connector includes a right connector housing, inside which are provided an outlet end fixing seat, an outlet end bushing, and a second rubber sealing ring. The outlet end fixing seat is disposed outside the outlet end bushing. The outlet end bushing and the second rubber sealing ring are coaxially arranged and form a second insertion hole for inserting a second air tube or cable. Inside the outlet end fixing seat, a second retaining spring is provided between the outlet end bushing and the second rubber sealing ring for clamping the second air tube or cable.

[0015] Furthermore, the outlet fixing seat is a cylindrical shape that matches the inner diameter of the right connector housing. A second protrusion is formed in the middle of the inner wall of the right connector housing, and a corresponding second annular groove is formed on the outer wall of the outlet fixing seat. The outlet fixing seat is positioned by the cooperation of the second annular groove and the second protrusion. The front end of the outlet fixing seat extends outward and abuts against the front end of the right connector. A second annular groove is recessed on the outer wall of the second rubber sealing ring, and a corresponding annular retaining ring protrudes inward from the rear end of the outlet fixing seat. The second rubber sealing ring is positioned with the outlet fixing seat by the cooperation of the second annular groove and the annular retaining ring.

[0016] Furthermore, the rear end of the second rubber sealing ring is provided with a second circular opening that abuts against the conical section of the valve core on the right side of the valve body. The surface of the valve body is provided with a concave surface for button installation. The left and right ends of the concave surface are respectively provided with openings for the left and right convex ring sections of the lower end face of the button to pass through. The convex ring sections pass through the openings and are located directly above the inclined surface of the conical valve core.

[0017] Furthermore, buttons are provided on both the upper and lower sides of the valve body, and are symmetrically distributed vertically.

[0018] Finally, the left connector is connected to the first air tube, and the left connector can be replaced according to different diameters of the first air tube. The right connector is not limited to connecting to the second air tube, but can also be connected to a cable to be used as a gas measuring tool, or directly used as an air outlet to be used as a small air gun.

[0019] Compared with existing technologies, the advantages of this invention are: it integrates connector, valve, switch, pressure holding, and quick-connect functions into one unit, resulting in a more reasonable and compact structure; it uses dual-sided buttons instead of traditional buttons, allowing for one-handed operation, and the gas flow rate is controlled by the depth of the press; the valve body is equipped with a double-cone valve core, and the convex ring segment at the lower end of the button that contacts the valve core is not at the same height. This ensures that when the button is pressed, the right valve core opens first, followed by the left valve core; when the button is released, the left valve core closes first, followed by the right valve core. This segmented stroke achieves gas pressure storage and pressure holding. This invention has a reasonable and compact structure, is convenient and quick to operate, and has multiple functions. In addition to its adapter function, it can also be used as a small air gun and a one-way valve. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0021] Figure 2 This is a cross-sectional view of an embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional view of an embodiment of the present invention in the state of pressing a button;

[0023] Figure 4 This is an exploded view of an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram illustrating the operation process of the present invention in different usage scenarios. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] like Figures 1-5As shown, a multi-functional push-button pneumatic adapter includes a valve body 1. A left connector 2, serving as an air inlet, is connected to the left end of the valve body 1, and a right connector 3, serving as an air outlet, is formed on the right end of the valve body 1. Both the left connector 2 and the right connector 3 are quick-connect fittings, allowing for rapid connection. The valve body 1 contains two valve cores, a left valve core 4 and a right valve core 5. Both the left valve core 4 and the right valve core 5 are conical valve cores, meaning each valve core has a conical section at its end serving as a sealing end. A spring 6 supports the left valve core 4 and the right valve core 5, causing them to consistently move outwards to close the air inlet and outlet. Buttons 7 are located on the upper and lower sides of the valve body 1, typically arranged symmetrically. The lower end face of button 7 has raised ring sections on the left and right sides, respectively, which cooperate with the left valve core 4 and the right valve core 5. These raised ring sections are distributed on the longitudinal section of the conical valve core, namely the left raised ring section 71 and the right raised ring section 72, which are distributed on the left and right longitudinal sections of the conical valve core, respectively. The height of the left raised ring section 71 is less than the height of the right raised ring section 72. This height is compared with the lower surface of button 7 as the initial surface. When button 7 is pressed, the right raised ring section 72 first contacts the conical surface of the right valve core 5, and the right valve core 5 opens. If button 7 is pressed further, the left valve core 4 opens, and the gas flow is controlled by the depth of button 7 being pressed. When button 7 is released, the left valve core 4 closes first, and then the right valve core 5 closes, thus achieving pressure maintenance.

[0027] More detailed structure: the left connector 2 includes a left connector housing 21, and the left connector housing 21 is provided with main components such as an air inlet fixing seat 22, an air inlet bushing 23 and a first rubber sealing ring 24. The air inlet fixing seat 22 is set outside the air inlet bushing 23. The air inlet bushing 23 and the first rubber sealing ring 24 are coaxially arranged and form a first insertion hole 232 for inserting the first air tube 8. A first retaining ring 25 for clamping the first air tube is provided inside the air inlet fixing seat 22 and between the air inlet bushing 23 and the first rubber sealing ring 24.

[0028] The left connector housing 21 is cylindrical, with its front end forming a tapered cone. The air inlet fixing seat 22 is cylindrical, matching the inner diameter of the left connector housing 21. The length of the air inlet fixing seat 22 is less than the length of the left connector housing 21. A first protrusion 211 is formed around the center of the inner wall of the left connector housing 21. A corresponding first annular groove 221 is formed on the outer wall of the air inlet fixing seat 22. The air inlet fixing seat 22 is mounted on the inner wall of the left connector housing 21 through the engagement of the first annular groove 221 and the first protrusion 211. The front end of the air inlet fixing seat 22 extends outward to form an outer ring 222 that abuts against the front end of the left connector housing 21. The outer wall of the first rubber sealing ring 24 is provided with two annular protrusions, namely a front annular protrusion 241 and a rear annular protrusion 242. The rear annular protrusion 242 abuts against the rear end of the air inlet fixing seat 22. The rear inner wall of the air inlet fixing seat 22 is recessed with a first annular groove 223. The front annular protrusion 241 of the first rubber sealing ring 24 is positioned in the first annular groove 223 and is located in the air inlet fixing seat 22. The air inlet bushing 23 is inserted into the front part of the inner hole of the air inlet fixing seat 22 by means of size matching. The front end of the air inlet bushing 23 extends out of the left connector housing 21. An annular protrusion 231 is provided at the front end of the air inlet bushing 23. The rear end of the first rubber sealing ring 24 abuts against the rear end of the left connector housing 21. A first circular opening 243 is provided at the rear end of the first rubber sealing ring 24 to abut against the tapered section of the left valve core 4.

[0029] The valve body 1 is cylindrical. The left side of the valve body 1 is formed with a reduced-diameter external thread section 11 that connects to the left connector housing 21. The rear end of the left connector housing 21 is provided with a corresponding internal thread section. The left connector 2 is detachably connected to the valve body 1 by means of threaded connection.

[0030] The internal structure of the right connector 3 of valve body 1 is similar to that of the left connector 2. The right connector 3 includes a right connector housing 31. The right connector housing 31 contains main components such as an air outlet fixing seat 32, an air outlet bushing 33, and a second rubber sealing ring 34. The air outlet fixing seat 32 is located outside the air outlet bushing 33. The air outlet bushing 33 and the second rubber sealing ring 34 are coaxially arranged and form a second insertion hole 331 for inserting the second air pipe 80 or cable. Inside the air outlet fixing seat 32, a second retaining spring 35 is provided between the air outlet bushing 33 and the second rubber sealing ring 34 for clamping the second air pipe or cable.

[0031] The outlet fixing seat 32 is a cylindrical shape that matches the inner diameter of the right connector housing 31. A second protrusion 311 is formed in the middle of the inner wall of the right connector housing 31. A corresponding second annular groove 321 is formed on the outer wall of the outlet fixing seat 32. The outlet fixing seat 32 is positioned by the cooperation of the second annular groove 321 and the second protrusion 311. The front end of the outlet fixing seat 32 extends outward to form an outer ring that abuts against the front end of the right connector 3. A second annular groove 341 is recessed on the outer wall of the second rubber sealing ring 34. A corresponding annular retaining ring 322 protrudes inward from the rear end of the outlet fixing seat 32. The second rubber sealing ring 34 is positioned and fixed with the outlet fixing seat 32 by the cooperation of the second annular groove 341 and the annular retaining ring 322. The rear end of the second rubber sealing ring 34 has a second circular opening 342 that abuts against the tapered section of the valve core 5 on the right side of the valve body 1.

[0032] The upper and lower surfaces of the valve body 1 are respectively provided with concave surfaces 12 for mounting the button 7. The left and right ends of the concave surfaces 12 are respectively provided with openings 13 for the left convex ring section 71 and the right convex ring section 72 of the lower end face of the button 7 to pass through. The left convex ring section 71 and the right convex ring section 72 pass through the openings 13 and are located directly above the inclined surfaces of the left valve core 4 and the right valve core 5, that is, above the conical section of the valve core.

[0033] Button 7 is a zinc alloy button, and button 7 is covered with a rubber-coated sealing bushing 70. It adopts static sealing. When pressed, only the internal zinc alloy button 7 moves, and the rubber-coated sealing bushing 70 is deformed only at the pressing point, so as to achieve sealing and improve service life. The front of the valve body 1 is provided with a three-dimensional arrow mark 10 for displaying the airflow direction.

[0034] The working principle is as follows:

[0035] like Figure 5 As shown, insert the left connector 2 into the first air tube 8. Insertion is complete when you feel a distinct stop. The left connector 2 can be replaced depending on the diameter of the first air tube 8. To remove the first air tube 8, simply press down on the inlet bushing 23 to deform the first retaining spring 25, and the first air tube 8 can be easily pulled out.

[0036] The right connector 3 is inserted into a second air tube 80 of different diameters, serving as an adapter. In use, press button 7. The lower right convex ring 72 of button 7 first contacts the conical surface of the right valve core 5, causing the right valve core 5 to move to the left. The right valve core 5 disengages from the second rubber sealing ring 34, opening. Continuing to press button 7 opens the left valve core 4, allowing air to flow from both sides. The gas flow rate is controlled by the depth of button 7 pressing. When the first air tube 8 is disconnected and button 7 is released, the left valve core 4 closes first, followed by the right valve core 5, preventing backflow and achieving a small amount of gas pressure storage and maintenance. Even without an air tube, air can still be supplied.

[0037] The right connector 3 can be used directly as an air outlet. Pressing the button will release gas from the right connector 3, making it suitable for use as a small air gun.

[0038] The right connector 3 connects to cable 9. The gas flow is controlled by pressing button 7. It is used as a gas testing tool. The application scenario is: two cables are connected and the middle is wrapped with rubber. The wrapped section 20 is placed in water to measure whether the rubber is leaking, thereby detecting the airtightness of the cable connection.

[0039] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A multi-functional push-button pneumatic adapter, comprising a valve body, characterized in that: The valve body has a left connector at the left end, serving as the air inlet, and a right connector at the right end, serving as the air outlet. Both connectors are quick-connect fittings. The valve body contains a left valve core and a right valve core, both of which are conical. A spring supports the left and right valve cores, ensuring they always tend to close the air inlet and outlet. At least one side of the valve body has a button. The lower end of the button has a left and right convex ring section on each side, respectively, which mates with the left and right valve cores. The height of the left convex ring section is less than that of the right convex ring section. When the button is pressed, the right convex ring section first contacts the conical surface of the right valve core, opening the right valve core. Continuing to press the button opens the left valve core, and the gas flow is controlled by the depth of button pressing. When the button is released, the left valve core closes first, followed by the right valve core, achieving pressure maintenance.

2. The multi-functional push-button pneumatic adapter according to claim 1, characterized in that: The left connector includes a left connector housing, inside which are provided an air inlet fixing seat, an air inlet bushing and a first rubber sealing ring. The air inlet fixing seat is located outside the air inlet bushing. The air inlet bushing and the first rubber sealing ring are coaxially arranged and form a first insertion hole for inserting the first air tube. Inside the air inlet fixing seat, between the air inlet bushing and the first rubber sealing ring, there is a first retaining spring for clamping the first air tube.

3. The multi-functional push-button pneumatic adapter according to claim 2, characterized in that: The left connector housing is cylindrical, with its front end being a tapered cone. The air inlet fixing seat is cylindrical and matches the inner diameter of the left connector housing. The length of the air inlet fixing seat is less than the length of the left connector housing. A first protrusion is formed in the middle of the inner wall of the left connector housing. A corresponding first annular groove is formed on the outer wall of the air inlet fixing seat. The air inlet fixing seat is mounted on the inner wall of the left connector housing through the cooperation of the first annular groove and the first protrusion. The front end of the air inlet fixing seat extends outward and abuts against the front end of the left connector housing. The outer wall of the first rubber sealing ring has two annular protrusions, one at the front and one at the rear. The rear annular protrusion abuts against the rear end of the air inlet fixing seat. The rear inner wall of the air inlet fixing seat has a first annular groove. The front annular protrusion of the first rubber sealing ring is positioned in the first annular groove and is positioned with the air inlet fixing seat.

4. The multi-functional push-button pneumatic adapter according to claim 3, characterized in that: The air inlet bushing is inserted into the front of the inner hole of the air inlet fixing seat by means of size matching. The front end of the air inlet bushing extends out of the left connector housing. An annular protrusion is provided at the front end of the air inlet bushing. The rear end of the first rubber sealing ring abuts against the rear end of the left connector housing. A first circular opening is provided at the rear end of the first rubber sealing ring to abut against the tapered section of the left valve core.

5. The multi-functional push-button pneumatic adapter according to claim 4, characterized in that: The valve body is cylindrical, with a reduced-diameter external thread section formed on the left side of the valve body that connects to the left connector housing. The rear end of the left connector housing is provided with a corresponding internal thread section. The left connector is detachably connected to the valve body by means of a threaded connection.

6. The multi-functional push-button pneumatic adapter according to claim 1, characterized in that: The right connector includes a right connector housing, inside which are provided an outlet end fixing seat, an outlet end bushing, and a second rubber sealing ring. The outlet end fixing seat is located outside the outlet end bushing. The outlet end bushing and the second rubber sealing ring are coaxially arranged and form a second insertion hole for inserting a second air tube or cable. Inside the outlet end fixing seat, a second retaining spring is provided between the outlet end bushing and the second rubber sealing ring for clamping the second air tube or cable.

7. The multi-functional push-button pneumatic adapter according to claim 6, characterized in that: The outlet fixing seat is a cylindrical shape that matches the inner diameter of the right connector shell. A second protrusion is formed in the middle of the inner wall of the right connector shell. A corresponding second annular groove is formed on the outer wall of the outlet fixing seat. The outlet fixing seat is positioned by the cooperation of the second annular groove and the second protrusion. The front end of the outlet fixing seat extends outward and abuts against the front end of the right connector. A second annular groove is recessed on the outer wall of the second rubber sealing ring. A corresponding annular retaining ring protrudes inward from the rear end of the outlet fixing seat. The second rubber sealing ring is positioned with the outlet fixing seat by the cooperation of the second annular groove and the annular retaining ring.

8. The multi-functional push-button pneumatic adapter according to claim 7, characterized in that: The rear end of the second rubber sealing ring is provided with a second circular opening that abuts against the tapered section of the valve core on the right side of the valve body. The surface of the valve body is provided with a concave surface for button installation. The left and right ends of the concave surface are respectively provided with openings for the left and right convex ring sections of the lower end face of the button to pass through. The convex ring sections pass through the openings and are located directly above the inclined surface of the tapered valve core.

9. The multi-functional push-button pneumatic adapter according to any one of claims 1 to 8, characterized in that: The valve body has buttons on both its upper and lower sides, which are symmetrically distributed.

10. The multi-functional push-button pneumatic adapter according to any one of claims 1 to 8, characterized in that: The left connector connects to the first air tube, and the left connector can be replaced according to different diameters of the first air tube. The right connector connects to the second air tube, or connects to a cable for use as a gas measuring tool, or directly serves as an air outlet for use as an air gun.

Images