Air valve assembly

Abstract

The utility model provides an air valve assembly which comprises an air valve, a control end and at least one embedded female connector, and the control end is arranged on a valve body of the air valve and used for controlling movement of a valve element. The embedded female connector is arranged on an air inlet hole or an air outlet hole of a valve body of the air valve, the embedded female connector comprises a nut seat, a clamping spring and a sealing gasket, and the nut seat comprises a force application portion of an outer polygonal structure at the upper end and an outer thread portion at the lower end. An internal thread is formed in the position, corresponding to the external thread part, of the inner wall of the air inlet hole or the air outlet hole of the valve body of the air valve, and the nut seat is in threaded connection with the valve body of the air valve; the sealing gasket is arranged at the bottom of the air inlet hole or the air outlet hole of the valve body of the air valve and used for limiting the connecting plug. The connector is fixed in the valve body in an embedded mode, and the connector can be directly inserted into a pipe when used.

Description

Technical Field

[0001] The utility model relates to the field of vehicle devices, in particular to an air valve assembly in which a valve and a joint are firmly connected. Background Art

[0002] In order to achieve diversified functions while taking costs into consideration, commercial vehicles use valves with various functions, such as reversing valves, stop valves, and handle valves in the shift system. These valves are driven by highly fluid media such as gas and oil, and the key technology in their application is sealing performance. Once leaked, it will not only pollute the vehicle but also cause functional failure and cause the vehicle to break down.

[0003] In the prior art, most valve connections are as follows: the valve is connected to the joint and connected to the air pipe. The connection between the valve and the joint is tightened by internal and external tapered threads. The tapered thread design can make the connection tighter and effectively prevent gas or liquid leakage. As the thread is tightened, the taper will generate axial force, further enhancing the sealing effect. However, under actual working conditions, especially in the chassis environment of commercial vehicles, the temperature fluctuation is large, and the selected joint and valve materials must have good aging resistance and heat resistance. Due to the vibration and pressure changes of engineering vehicles, both joints and valves need to have high strength. Therefore, many causes of faulty parts are loose joints, breakage, deformation, etc.

[0004] In order to solve this problem, a new structure is needed to compensate for the hidden dangers caused by the connection between the valve and the joint. Utility Model Content

[0005] In view of the above-mentioned defects, the purpose of the utility model is to provide a high-precision and efficient gas valve assembly with a stable connection between the valve and the joint, so as to solve the problems of the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A gas valve assembly, the gas valve assembly includes a gas valve, a control end and at least one embedded female connector, the control end is arranged on the valve body of the gas valve, and is used to control the movement of the valve core; the at least one embedded female connector is arranged on the air inlet or air outlet of the valve body of the gas valve, the embedded female connector includes a nut seat, a retaining ring and a sealing gasket, the sealing gasket, the retaining ring and the nut seat are sequentially arranged in the air inlet or air outlet of the valve body of the gas valve, wherein the nut seat includes a force-applying portion of an outer polygonal structure at the upper end and an external threaded portion at the lower end, the outer diameter of the force-applying portion is larger than the outer diameter of the external threaded portion, an internal thread is provided on the inner wall of the air inlet or air outlet of the valve body of the air valve corresponding to the position of the external threaded portion, and the nut seat is threadedly connected to the valve body of the air valve; the retaining spring is a reed sheet with one end open, and the retaining spring is arranged on the stepped portion of the inner wall of the air inlet or air outlet of the valve body of the air valve for engaging the plug joint; the sealing gasket is arranged at the bottom of the air inlet or air outlet of the valve body of the air valve for limiting the plug joint.

[0008] According to the air valve assembly described in the embodiment of the present application, the embedded female connector also includes a sealing ring, which is arranged between the force-applying portion and the external threaded portion to seal and prevent air pressure from leaking out.

[0009] According to the air valve assembly described in the embodiment of the present application, the air valve assembly also includes at least one embedded vent plug, and the at least one embedded vent plug is arranged on the exhaust hole of the valve body of the air valve. The embedded vent plug includes a dust cap, a sealing rubber pad and a connecting piece, the dust cap is arranged on the connecting piece, the sealing rubber pad is limited by the dust cap and is arranged on the connecting piece, and the connecting piece is engaged and connected to the exhaust hole of the valve body of the air valve.

[0010] According to the air valve assembly described in the embodiment of the present application, the sealing rubber pad is a rubber sheet with a through hole in the middle, and the dust cap limits the movement and bending degree of the sealing rubber pad on one side of the sealing rubber pad.

[0011] According to the air valve assembly described in the embodiment of the present application, a separator is provided at one end where the connecting piece 43 and the dust cap are connected, and the separator divides the air outlet of the connecting piece into two parts; a boss is provided on the side of the separating piece facing the sealing rubber pad at a position corresponding to the through hole, and the boss is inserted into and connected to the through hole; a radially protruding clamping portion is provided at the connection between the separating piece and the connecting piece.

[0012] According to the air valve assembly described in the embodiment of the present application, the dust cap is a cup body, wherein a connecting hole is provided on the annular surface of the cup body of the dust cap corresponding to the clamping portion, and the clamping portion and the connecting hole are clamped together; the cup bottom of the dust cap is recessed inward, and a limiting groove is provided on the cup bottom of the dust cap corresponding to the boss of the separator, and the boss is inserted into and connected to the limiting groove.

[0013] The design concept of this application is to design a valve assembly that integrates the valve and the connector, reducing the number of connections and thus reducing the risk; the valve assembly fixes the connector in the valve body in an embedded manner, and can be directly inserted into the pipe when in use. Since the embedded connector omits the tapered thread connection, there will be no problems with the connector loosening, breaking, and deformation, which improves product quality, reduces vehicle failure rate, and can also reduce weight, reduce costs, and increase economic efficiency.

[0014] Due to the adoption of the above technical features, the utility model has the following advantages and positive effects compared with the prior art:

[0015] First, the connector of this application is fixed in the valve body in an embedded manner and can be directly inserted into the pipe when in use;

[0016] Second, the embedded joint of the present application omits the tapered thread connection, so there will be no problems of loosening, breaking, and deformation of the joint, which improves product quality, reduces vehicle failure rate, and at the same time can reduce weight, reduce costs, and increase economic efficiency.

[0017] Of course, any specific embodiment of the present invention does not necessarily have all of the above technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the gas valve assembly of this application;

[0019] Figure 2 It is a cross-sectional schematic diagram of the gas valve assembly of the present application;

[0020] Figure 3 This is a schematic diagram of the embedded female connector and bamboo quick-connect connector of the present application;

[0021] Figure 4 It is a schematic diagram of the nut seat of this application;

[0022] Figure 5 It is a schematic diagram of the circlip of this application;

[0023] Figure 6 It is a cross-sectional schematic diagram of the embedded vent plug of the present application;

[0024] Figure 7 It is a schematic diagram of the connection parts of this application;

[0025] Figure 8 This is a schematic diagram of the airflow of the embedded vent plug of this application. DETAILED DESCRIPTION

[0026] For ease of understanding, preferred embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0027] Please refer to Figure 1 The schematic diagram of the air valve assembly of the present application is a vehicle-use device. The air valve assembly, which integrates the air valve and the joint, reduces the connection and thus reduces the risk. The air valve assembly fixes the joint in the valve body in an embedded manner, and can be directly inserted into the pipe when in use; since the embedded joint omits the tapered thread connection, there will be no problems of loosening, breaking, and deformation of the joint, thereby improving product quality, reducing vehicle failure rate, and at the same time reducing weight, reducing costs, and increasing economic efficiency.

[0028] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The gas valve assembly includes a gas valve 10, a control end 20, at least one embedded female connector 30 and at least one embedded vent plug 40. The control end 20 is arranged on the valve body of the gas valve 10 to control the movement of the valve core; the at least one embedded female connector 30 is arranged on the air inlet 11 or the air outlet 12 of the valve body of the gas valve 10, and the at least one embedded vent plug 40 is arranged on the exhaust hole 13 of the valve body of the gas valve 10. Figure 2 As shown, in the embodiment of the present application, the air valve assembly is a two-position five-way reversing valve, which is controlled by the control end to realize the gear shifting function. The air valve assembly includes an air inlet 11, two air outlets 12 and two exhaust holes 13; the embedded vent plug 40 is a one-way valve, which plays an exhaust role during the gear shifting process; the air inlet 11 is mainly connected to the air source, and the two air outlets 12 are respectively connected to actuators of different gears; the air inlet 11 and the air outlet 12 are both equipped with the embedded female connector 30, and the exhaust hole 13 is equipped with the embedded vent plug 40.

[0029] like Figure 3As shown, the embedded female connector 30 includes a nut seat 31, a retaining spring 33 and a sealing gasket 34. The sealing gasket 34, the retaining spring 33 and the nut seat 31 are sequentially arranged in the air inlet 11 or the air outlet 12 of the valve body of the air valve 10. As mentioned above, they are arranged in one air inlet 11 and two air outlets 12. The embedded female connector 30 is fixed in the valve body of the air valve 10 in an embedded manner. When in use, the pipe can be directly inserted without the problem of loosening, breaking and deformation of the joint. The nut seat 31 includes a force-applying portion 311 of an outer polygonal structure at the upper end and an outer threaded portion 312 at the lower end. The outer diameter of the force-applying portion 311 is larger than the outer diameter of the outer threaded portion 312. The inner wall of the air inlet 11 or the air outlet 12 of the valve body of the air valve 10 is provided with an inner thread corresponding to the position of the outer threaded portion 312. The nut seat 31 is screwed into the valve body of the air valve 10. Figure 4 As shown, in the embodiment of the present application, the upper end of the nut seat 31 is an external hexagonal structure, which is convenient for tightening with a wrench, and the external thread at the bottom is engaged with the internal thread in the valve body forming hole.

[0030] Please refer to Figure 5 Schematic diagram of the retaining spring of the present application, the retaining spring 33 is a reed leaf with one end open, the retaining spring 33 is arranged on the stepped portion of the inner wall of the air inlet hole 11 or the air outlet hole 12 of the valve body of the air valve 10, and is used to engage the plug connector 50; in addition, Figure 3 In the embodiment, the sealing gasket 34 is arranged at the bottom of the air inlet hole 11 or the air outlet hole 12 of the valve body of the air valve 10, and is used to limit the plug connector 50. In the embodiment of the present application, the plug connector 50 is a bamboo joint quick connector 50, and the sealing gasket 34 enables the bamboo joint quick connector 50 to be fully engaged with the retaining ring 33 under axial pressure.

[0031] In order to ensure the sealing performance, the embedded female connector 30 further includes a sealing ring 32. Figure 3 In the embodiment, the sealing ring 32 is disposed between the force-applying portion 311 and the external thread portion 312 , that is, at a right angle formed between the force-applying portion 311 and the external thread portion 312 , and the sealing ring 32 is used for sealing to prevent air pressure leakage.

[0032] Please refer to Figure 6The embedded vent plug of the present application is a cross-sectional schematic diagram, wherein the embedded vent plug 40 includes a dust cap 41, a sealing rubber pad 42 and a connecting piece 43. The embedded vent plug 40 is fixed in the valve body of the air valve 10 in an embedded manner, and can be directly inserted into a pipe when in use, without problems such as loose joints, breakage, and deformation, thereby improving product quality, reducing vehicle failure rate, and at the same time reducing weight, reducing costs, and increasing economic efficiency; the upper end of the connecting piece 43 is tightly fastened to the dust cap 41 with a snap-on structure, and the lower end is riveted to the valve body of the air valve 10 with a riveting structure; when the embedded vent plug 40 is in a normal state, the sealing rubber pad 42 fits the connecting piece 43, so that external air, dust, moisture and other debris cannot enter the embedded vent plug 40. When gas is discharged from the product connected to the embedded vent plug 40, the internal pressure of the embedded vent plug 40 is greater than the external pressure, and the sealing rubber pad 42 is pushed open by force to allow the internal gas to be discharged quickly; the angle at which the sealing rubber pad 42 is pushed open is limited by the dust cap 41 to ensure that the sealing rubber pad 42 will not bend excessively, and the dust cap 41 is set on the connecting piece 43, and the sealing rubber pad 42 is limited by the dust cap 41 and is set on the connecting piece 43, and the connecting piece 43 is engaged with the exhaust hole 13 of the valve body of the gas valve 10, as shown in FIG. Figure 7 As shown, the lower part of the connecting member 43 includes a beveled protruding snap ring 434, and the exhaust hole 13 opens an annular groove corresponding to the position of the snap ring. The snap ring 434 is riveted into the annular groove by a riveting structure. After assembly, the snap ring 434 is stuck in the annular groove to firmly connect the connecting member 43 to the exhaust hole 13.

[0033] In addition, the sealing rubber pad 42 is a rubber sheet with a through hole in the middle. The shape of the through hole can be circular, square or other shapes. In the present embodiment, the shape of the through hole is circular, but it cannot be used to limit the present application. Any shape that is convenient for processing and conducive to combination is within the protection scope of the present application. The sealing rubber pad 42 is connected to the connecting piece 43, and the sealing rubber pad 42 covers the air outlet of the connecting piece 43; the dust cap 41 limits the movement and bending degree of the sealing rubber pad 42 toward one side of the sealing rubber pad 42; in order to ensure that the sealing rubber pad 42 has a longer service life, corresponding requirements are placed on the material of the sealing rubber pad 42. The rubber is made of hydrogenated nitrile rubber, which is resistant to a temperature range of -40 to 120°C, has a hardness of 75 to 85 Shore A, a tensile strength greater than 20 MPa, and a permanent deformation of less than 6% after 200% elongation for 24 hours, so as to ensure that it can be suitable for the vehicle and meet the vehicle use requirements under any temperature environment.

[0034] like Figure 7As shown, the connecting piece 43 is a hollow cylinder, and a separator 431 is provided at one end where the connecting piece 43 and the dust cap 41 are connected, and the separator 431 divides the air outlet of the connecting piece 43 into two parts; a boss 432 is provided at a position corresponding to the through hole on the side of the separating piece 431 facing the sealing rubber pad 42, and the boss 432 is inserted into and connected to the through hole; a radially protruding clamping portion 433 is provided at the connection between the separating piece 431 and the ring body of the connecting piece 43 for connecting the dust cap 41, as shown in FIG. Figure 7 As shown, a connecting column 435 is included on each side of the clamping portion 433. In the embodiment of the present application, the number of the clamping portions 433 is two, and the number of the connecting columns 435 is four. The connecting columns 435 are used to abut against the inner edge surface of the dust cap 41, so that the dust cap 41 and the connecting member 43 are firmly connected, and the gap between the inner edge surface of the dust cap 41 and the outer edge surface of the connecting member 43 is ensured to facilitate gas flow. Figure 8 The airflow diagram of the embedded vent plug of the present application is shown.

[0035] like Figure 6 As shown, the dust cap 41 is a cup body, wherein a connecting hole (not shown) is arranged on the annular surface of the cup body of the dust cap 41 at a position corresponding to the clamping portion 433, and the clamping portion 433 and the connecting hole are clamped together. In terms of design, the clamping portion 433 protrudes from the surface of the connecting piece 43, and the connecting hole can be attached to the surface of the connecting column 435, and the dust cap 41 and the connecting piece 43 can be firmly connected after clamping; this clamping method is fast and efficient, and is suitable for dust caps 41 made of plastic or metal. However, in the case of dust caps 41 made of metal, the opening of the dust cap 41 can also be directly flattened to connect with the connecting piece 43. Therefore, the connection method of the clamping portion 433 and the connecting hole cannot be used to limit the present application, and the above-mentioned flattening connection method should also be within the scope of protection of the present application.

[0036] Figure 8 In the embodiment, the bottom of the dust cap 41 is recessed inwards, and a limiting groove 412 is formed at the bottom of the dust cap 41 corresponding to the boss 432 of the separator 431. The boss 432 is inserted into the limiting groove 412, and the bottom surface of the dust cap 41 limits the bending degree of the sealing rubber pad 42. Figure 8As shown, after the boss 432 is inserted into the limiting groove 412, the outer edge of the limiting groove 412 is pressed on the sealing rubber pad 42 to position the sealing rubber pad 42 and prevent the sealing rubber pad 42 from being blown away by the airflow; in addition, when exhausting gas, the downward angle of the cup bottom of the dust cap 41 is the maximum angle that the sealing rubber pad 42 can bend. This angle limitation can prevent the sealing rubber pad 42 from bending too much, protect the sealing rubber pad 42 from being damaged, and achieve the optimal exhaust volume. Preferably, in order to ensure that the sealing rubber pad 42 will not be affected by excessive deformation during long-term work and can meet the performance of large flow, the dust cap 41 makes a necessary limiting angle for the sealing rubber pad 42, requiring an angle of 40 to 50 degrees. That is to say, the downward angle of the cup bottom of the dust cap 41 is 40 to 50 degrees. Within this range, the service life of the sealing rubber pad 42 is the longest. However, this cannot be used to limit the present application. Any method of limiting the angle of the dust cap 41 should be within the protection scope of the present application.

[0037] In summary, the assembly method of the sealing rubber pad 42 of the present application is that after the boss 432 of the separator 431 is inserted into the through hole of the sealing rubber pad 42, it is immersed in the limiting groove 412 of the dust cap 41. At this time, the outer edge of the limiting groove 412 presses on the sealing rubber pad 42 to fix the sealing rubber pad 42. Of course, we can also change to a method of using screws or positioning pins plus washers to achieve the purpose of fixing, but these methods are not as convenient and time-saving as the method of using the above-mentioned boss 432; however, this cannot be used to limit the present application, and the method of screws or positioning pins plus washers should also be within the scope of protection of the present application. In addition, after the boss 432 is inserted into the through hole of the sealing rubber pad 42, it can also be inserted into the limiting groove 412 of the dust cap 41 without being inserted, and the sealing rubber pad 42 is fixed only by the outer edge of the limiting groove 412 pressing on the sealing rubber pad 42, but the fixing effect is not as good as the insertion effect.

[0038] It should be noted that in the description of the embodiments of the present application, the terms "front, rear", "left, right", "up, down", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application. The terms "install", "connect", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0039] Due to the adoption of the above technical features, the utility model has the following advantages and positive effects compared with the prior art:

[0040] First, the connector of this application is fixed in the valve body in an embedded manner and can be directly inserted into the pipe when in use;

[0041] Second, the embedded joint of the present application omits the tapered thread connection, so there will be no problems of loosening, breaking, and deformation of the joint, which improves product quality, reduces vehicle failure rate, and at the same time can reduce weight, reduce costs, and increase economic efficiency.

[0042] The above disclosure is only a preferred embodiment of the present invention, but is not intended to limit itself. Any equivalent changes and modifications made by any technician familiar with the field without violating the spirit and connotation of the present invention should fall within the protection scope of the present invention.

Claims

1. A gas valve assembly, characterized in that: The gas valve assembly includes a gas valve, a control end and at least one embedded female connector, wherein the control end is arranged on the valve body of the gas valve and is used to control the movement of the valve core; the at least one embedded female connector is arranged on the air inlet or air outlet of the valve body of the gas valve, and the embedded female connector includes a nut seat, a retaining ring and a sealing gasket, wherein the sealing gasket, retaining ring and nut seat are arranged in the air inlet or air outlet of the valve body of the gas valve in sequence, wherein: The nut seat comprises a force-applying portion with an outer polygonal structure at the upper end and an outer threaded portion at the lower end, the outer diameter of the force-applying portion is larger than the outer diameter of the outer threaded portion, the inner wall of the air inlet or air outlet of the valve body of the air valve is provided with an inner thread corresponding to the position of the outer threaded portion, and the nut seat is threadedly connected to the valve body of the air valve; The retaining spring is a reed with one end open, and the retaining spring is arranged on the stepped portion of the inner wall of the air inlet or air outlet of the valve body of the air valve, and is used for engaging with the plug connector; The sealing gasket is arranged at the bottom of the air inlet or the air outlet of the valve body of the air valve and is used for limiting the plug connector.

2. The air valve assembly according to claim 1, characterized in that: The embedded female connector also includes a sealing ring, which is arranged between the force-applying portion and the external threaded portion and is used for sealing to prevent air pressure from leaking out.

3. The gas valve assembly according to claim 2, characterized in that: The air valve assembly also includes at least one embedded vent plug, which is arranged on the exhaust hole of the valve body of the air valve. The embedded vent plug includes a dust cap, a sealing rubber pad and a connecting piece. The dust cap is arranged on the connecting piece, and the sealing rubber pad is limited by the dust cap and arranged on the connecting piece. The connecting piece is engaged and connected to the exhaust hole of the valve body of the air valve.

4. The gas valve assembly according to claim 3, characterized in that: The sealing rubber pad is a rubber sheet with a through hole in the middle, and the dust cap limits the movement and bending degree of the sealing rubber pad on one side of the sealing rubber pad.

5. The gas valve assembly according to claim 4, characterized in that: A separator is provided at one end where the connector and the dust cap are connected, and the separator divides the air outlet of the connector into two parts; a boss is provided at a position corresponding to the through hole on the side of the separator facing the sealing rubber pad, and the boss is inserted into and connected to the through hole; A radially protruding clamping portion is provided at the connection between the separator and the connecting piece.

6. The gas valve assembly according to claim 5, characterized in that: The dust cap is a cup body, wherein a connecting hole is arranged on the annular surface of the cup body of the dust cap corresponding to the clamping part, and the clamping part is clamped with the connecting hole; the cup bottom of the dust cap is recessed inward, and a limiting groove is arranged on the cup bottom of the dust cap corresponding to the boss of the separator, and the boss is inserted into and connected with the limiting groove.

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